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66 Commits

Author SHA1 Message Date
4c847fd3d7 19.6.0
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2025-06-09 15:28:53 +00:00
2e11f9358c docs(readme): add metrics and monitoring documentation
Document the new metrics collection system including available metrics methods, usage examples, and export formats for external monitoring systems.
2025-06-09 15:14:13 +00:00
9bf15ff756 feat(metrics): add comprehensive metrics collection system
Implement real-time stats tracking including connection counts, request metrics, bandwidth usage, and route-specific monitoring. Adds MetricsCollector with observable streams for reactive monitoring integration.
2025-06-09 15:08:37 +00:00
6726de277e 19.5.26
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2025-06-08 12:26:32 +00:00
dc3eda5e29 fix accumulation 2025-06-08 12:25:31 +00:00
82a350bf51 19.5.25
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2025-06-07 20:37:52 +00:00
890e907664 fix(connection): filter zombie connections part 2 2025-06-07 20:37:49 +00:00
19590ef107 19.5.24
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2025-06-07 10:56:08 +00:00
47735adbf2 Implement zombie connection detection and cleanup in ConnectionManager; enhance tests for edge cases 2025-06-07 10:55:59 +00:00
9094b76b1b 19.5.23
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2025-06-06 23:36:19 +00:00
9aebcd488d Implement connection timeout handling and improve connection cleanup in SmartProxy 2025-06-06 23:34:50 +00:00
311691c2cc 19.5.22
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2025-06-06 15:54:40 +00:00
578d1ba2f7 update 2025-06-06 15:00:46 +00:00
233c98e5ff 19.5.21
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2025-06-06 14:30:39 +00:00
b3714d583d Implement PROXY protocol v1 support in SmartProxy
- Added ProxyProtocolParser class for parsing and generating PROXY protocol v1 headers.
- Integrated PROXY protocol parsing into RouteConnectionHandler for handling incoming connections from trusted proxies.
- Implemented WrappedSocket class to encapsulate real client information.
- Configured SmartProxy to accept and send PROXY protocol headers in routing actions.
- Developed comprehensive unit tests for PROXY protocol parsing and generation.
- Documented usage patterns, configuration, and best practices for proxy chaining scenarios.
- Added security and performance considerations for PROXY protocol implementation.
2025-06-06 13:45:44 +00:00
527cacb1a8 19.5.20
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2025-06-06 08:25:22 +00:00
5f175b4ca8 fix tests 2025-06-06 08:23:37 +00:00
b9be6533ae start fixing tests 2025-06-06 07:40:59 +00:00
18d79ac7e1 feat(proxy): Implement WrappedSocket class for PROXY protocol support and update connection handling 2025-06-05 17:57:24 +00:00
2a75e7c490 Refactor routing and proxy components for improved structure and compatibility
- Removed deprecated route utility functions in favor of direct matcher usage.
- Updated imports to reflect new module structure for routing utilities.
- Consolidated route manager functionality into SharedRouteManager for better consistency.
- Eliminated legacy routing methods and interfaces, streamlining the HttpProxy and associated components.
- Enhanced WebSocket and HTTP request handling to utilize the new unified HttpRouter.
- Updated route matching logic to leverage matcher classes for domain, path, and header checks.
- Cleaned up legacy compatibility code across various modules, ensuring a more maintainable codebase.
2025-06-03 16:21:09 +00:00
cf70b6ace5 feat(routing): Add SharedRouteManager and route matching utilities for enhanced routing capabilities 2025-06-03 16:19:52 +00:00
54ffbadb86 feat(routing): Implement unified routing and matching system
- Introduced a centralized routing module with comprehensive matchers for domains, headers, IPs, and paths.
- Added DomainMatcher for domain pattern matching with support for wildcards and specificity calculation.
- Implemented HeaderMatcher for HTTP header matching, including exact matches and pattern support.
- Developed IpMatcher for IP address matching, supporting CIDR notation, ranges, and wildcards.
- Created PathMatcher for path matching with parameter extraction and wildcard support.
- Established RouteSpecificity class to calculate and compare route specificity scores.
- Enhanced HttpRouter to utilize the new matching system, supporting both modern and legacy route configurations.
- Added detailed logging and error handling for routing operations.
2025-06-02 03:57:52 +00:00
01e1153fb8 feat(proxy): Start implementing PROXY protocol support and WrappedSocket class for enhanced client IP handling 2025-06-01 21:30:37 +00:00
fa9166be4b 19.5.19
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2025-06-01 15:45:03 +00:00
c5efee3bfe fix(smartproxy): Fix connection handling and improve route matching edge cases 2025-06-01 15:45:03 +00:00
47508eb1eb Refactor socket handling in forwarding handlers to use centralized utilities and remove deprecated functions 2025-06-01 15:35:45 +00:00
fb147148ef 19.5.18
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2025-06-01 15:10:42 +00:00
07f5ceddc4 Implement proxy chain connection accumulation fix and add comprehensive tests
- Updated socket handling to prevent connection accumulation in chained proxies.
- Introduced centralized bidirectional forwarding for consistent socket management.
- Enhanced cleanup logic to ensure immediate closure of sockets when one closes.
- Added tests to verify connection behavior under various scenarios, including backend failures and rapid reconnections.
2025-06-01 15:10:36 +00:00
3ac3345be8 19.5.17
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2025-06-01 14:41:23 +00:00
5b40e82c41 Add tests for connect-disconnect and error handling in SmartProxy 2025-06-01 14:41:19 +00:00
2a75a86d73 19.5.16
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2025-06-01 14:22:23 +00:00
250eafd36c Enhance connection cleanup and error handling in RouteConnectionHandler
- Implement immediate cleanup for connection failures to prevent leaks
- Add NFTables cleanup on socket close to manage memory usage
- Fix connection limit bypass by checking record after creation
- Introduce tests for rapid connection retries and routing failures
2025-06-01 14:22:06 +00:00
facb68a9d0 19.5.15
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2025-06-01 14:00:05 +00:00
23898c1577 19.5.14
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2025-06-01 13:58:30 +00:00
2d240671ab Improve error handling and logging for outgoing connections in RouteConnectionHandler 2025-06-01 13:58:20 +00:00
705a59413d 19.5.13
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2025-06-01 13:43:46 +00:00
e9723a8af9 19.5.12
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2025-06-01 13:43:05 +00:00
300ab1a077 Fix connection leak in route-connection-handler by using safe socket creation
The previous fix only addressed ForwardingHandler classes but missed the critical setupDirectConnection() method in route-connection-handler.ts where SmartProxy actually handles connections. This caused active connections to rise indefinitely on ECONNREFUSED errors.

Changes:
- Import createSocketWithErrorHandler in route-connection-handler.ts
- Replace net.connect() with createSocketWithErrorHandler() in setupDirectConnection()
- Properly clean up connection records when server connection fails
- Add connectionFailed flag to prevent setup of failed connections

This ensures connection records are cleaned up immediately when backend connections fail, preventing memory leaks.
2025-06-01 13:42:46 +00:00
900942a263 19.5.11
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2025-06-01 13:32:16 +00:00
d45485985a Fix socket error handling to prevent server crashes on ECONNREFUSED
This commit addresses critical issues where unhandled socket connection errors (ECONNREFUSED) would crash the server and cause memory leaks with rising connection counts.

Changes:
- Add createSocketWithErrorHandler() utility that attaches error handlers immediately upon socket creation
- Update https-passthrough-handler to use safe socket creation and clean up client sockets on server connection failure
- Update https-terminate-to-http-handler to use safe socket creation
- Ensure proper connection cleanup when server connections fail
- Document the fix in readme.hints.md and create implementation plan in readme.plan.md

The fix prevents race conditions where sockets could emit errors before handlers were attached, and ensures failed connections are properly cleaned up to prevent memory leaks.
2025-06-01 13:30:06 +00:00
9fdc2d5069 Refactor socket handling plan to address server crashes, memory leaks, and race conditions 2025-06-01 13:01:24 +00:00
37c87e8450 19.5.10
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2025-06-01 12:33:48 +00:00
92b2f230ef 19.5.9
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2025-06-01 12:27:59 +00:00
e7ebf57ce1 19.5.8
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2025-06-01 12:27:25 +00:00
ad80798210 Enhance socket cleanup and management for improved connection handling
- Refactor cleanupSocket function to support options for immediate destruction, allowing drain, and grace periods.
- Introduce createIndependentSocketHandlers for better management of half-open connections between client and server sockets.
- Update various handlers (HTTP, HTTPS passthrough, HTTPS terminate) to utilize new cleanup and socket management functions.
- Implement custom timeout handling in socket setup to prevent immediate closure during keep-alive connections.
- Add tests for long-lived connections and half-open connection scenarios to ensure stability and reliability.
- Adjust connection manager to handle socket cleanup based on activity status, improving resource management.
2025-06-01 12:27:15 +00:00
265b80ee04 19.5.7
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2025-06-01 08:09:39 +00:00
726d40b9a5 feat(lifecycle-component): enhance lifecycle management with unref support for timers and event listeners
fix(lifecycle-component): store actual event handler for proper cleanup
chore(meta): update certificate dates in meta.json
2025-06-01 08:09:29 +00:00
cacc88797a 19.5.6
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2025-06-01 08:03:39 +00:00
bed1a76537 refactor(socket-utils): replace direct socket cleanup with centralized cleanupSocket utility across connection management 2025-06-01 08:02:32 +00:00
eb2e67fecc feat(socket-utils): implement socket cleanup utilities and enhance socket handling in forwarding handlers 2025-06-01 07:51:20 +00:00
c7c325a7d8 fix(tests): update AcmeStateManager tests to use socket-handler for challenge routes
fix(tests): enhance non-TLS connection detection with range support in HttpProxy tests
2025-06-01 07:06:11 +00:00
a2affcd93e 19.5.5
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2025-05-31 22:18:55 +00:00
e0f3e8a0ec fix(lifecycle-component): support 'once' option for event listeners 2025-05-31 22:18:34 +00:00
96c4de0f8a fix(connection-manager): set default maxConnections to 10000 if not specified 2025-05-31 18:12:19 +00:00
829ae0d6a3 fix(refactor): remove deprecated Port80Handler and related utilities
- Deleted event-utils.ts which contained deprecated Port80Handler and its subscribers.
- Updated index.ts to remove the export of event-utils.
- Refactored ConnectionManager to extend LifecycleComponent for better resource management.
- Added BinaryHeap implementation for efficient priority queue operations.
- Introduced EnhancedConnectionPool for managing pooled connections with lifecycle management.
- Implemented LifecycleComponent to manage timers and event listeners automatically.
- Added comprehensive tests for BinaryHeap and LifecycleComponent to ensure functionality.
2025-05-31 18:01:09 +00:00
7b81186bb3 feat(performance): Add async utility functions and filesystem utilities
- Implemented async utilities including delay, retryWithBackoff, withTimeout, parallelLimit, debounceAsync, AsyncMutex, and CircuitBreaker.
- Created tests for async utilities to ensure functionality and reliability.
- Developed AsyncFileSystem class with methods for file and directory operations, including ensureDir, readFile, writeFile, remove, and more.
- Added tests for filesystem utilities to validate file operations and error handling.
2025-05-31 17:45:40 +00:00
02603c3b07 fix(performance): start with planning performance optimizations 2025-05-31 17:14:15 +00:00
af753ba1a8 19.5.4
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2025-05-29 15:09:05 +00:00
d816fe4583 docs(readme): Update documentation to accurately reflect v19.5.3 API
- Correct action types to only 'forward' and 'socket-handler'
- Remove references to non-existent helper functions (createStaticFileRoute, createSecurityConfig, etc.)
- Add documentation for missing helper functions (createPortMappingRoute, createDynamicRoute, etc.)
- Update all code examples to use correct API (redirects/blocks via socket handlers)
- Fix interface definitions to match actual codebase
- Add comprehensive socket handler documentation and examples
- Clarify that security configuration is at route level, not action level
- Update architecture section to reflect current module structure
- Remove references to deprecated modules (Port80Handler, certificate module)
2025-05-29 15:07:44 +00:00
7e62864da6 19.5.3
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2025-05-29 14:34:00 +00:00
32583f784f fix(smartproxy): Fix route security configuration location and improve ACME timing tests and socket mock implementations 2025-05-29 14:34:00 +00:00
e6b3ae395c update 2025-05-29 14:06:47 +00:00
af13d3af10 update 2025-05-29 13:24:27 +00:00
30ff3b7d8a update 2025-05-29 12:54:31 +00:00
ab1ea95070 update 2025-05-29 12:15:53 +00:00
b0beeae19e update 2025-05-29 11:30:42 +00:00
127 changed files with 15977 additions and 6652 deletions

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@ -1,5 +1,5 @@
{
"expiryDate": "2025-08-27T01:45:41.917Z",
"issueDate": "2025-05-29T01:45:41.917Z",
"savedAt": "2025-05-29T01:45:41.919Z"
"expiryDate": "2025-09-03T17:57:28.583Z",
"issueDate": "2025-06-05T17:57:28.583Z",
"savedAt": "2025-06-05T17:57:28.583Z"
}

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@ -1,5 +1,23 @@
# Changelog
## 2025-06-01 - 19.5.19 - fix(smartproxy)
Fix connection handling and improve route matching edge cases
- Enhanced cleanup logic to prevent connection accumulation under rapid retry scenarios
- Improved matching for wildcard domains and path parameters in the route configuration
- Minor refactoring in async utilities and internal socket handling for better performance
- Updated test suites and documentation for clearer configuration examples
## 2025-05-29 - 19.5.3 - fix(smartproxy)
Fix route security configuration location and improve ACME timing tests and socket mock implementations
- Move route security from action.security to the top-level route.security to correctly enforce IP allow/block lists (addresses failing in test.route-security.ts)
- Update readme.problems.md to document the routing security configuration issue with proper instructions
- Adjust certificate metadata in certs/static-route/meta.json with updated timestamps
- Update test.acme-timing.ts to export default tap.start() instead of tap.start() to ensure proper parsing
- Improve socket simulation and event handling mocks in test.http-fix-verification.ts and test.http-forwarding-fix.ts to more reliably mimic net.Socket behavior
- Minor adjustments in multiple test files to ensure proper port binding, race condition handling and route lookups (e.g. getRoutesForPort implementation)
## 2025-05-29 - 19.5.2 - fix(test)
Fix ACME challenge route creation and HTTP request parsing in tests

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@ -1,6 +1,6 @@
{
"name": "@push.rocks/smartproxy",
"version": "19.5.2",
"version": "19.6.0",
"private": false,
"description": "A powerful proxy package with unified route-based configuration for high traffic management. Features include SSL/TLS support, flexible routing patterns, WebSocket handling, advanced security options, and automatic ACME certificate management.",
"main": "dist_ts/index.js",
@ -9,7 +9,7 @@
"author": "Lossless GmbH",
"license": "MIT",
"scripts": {
"test": "(tstest test/**/test*.ts --verbose --timeout 600)",
"test": "(tstest test/**/test*.ts --verbose --timeout 60 --logfile)",
"build": "(tsbuild tsfolders --allowimplicitany)",
"format": "(gitzone format)",
"buildDocs": "tsdoc"
@ -18,7 +18,7 @@
"@git.zone/tsbuild": "^2.6.4",
"@git.zone/tsrun": "^1.2.44",
"@git.zone/tstest": "^2.3.1",
"@types/node": "^22.15.24",
"@types/node": "^22.15.29",
"typescript": "^5.8.3"
},
"dependencies": {
@ -31,6 +31,7 @@
"@push.rocks/smartnetwork": "^4.0.2",
"@push.rocks/smartpromise": "^4.2.3",
"@push.rocks/smartrequest": "^2.1.0",
"@push.rocks/smartrx": "^3.0.10",
"@push.rocks/smartstring": "^4.0.15",
"@push.rocks/taskbuffer": "^3.1.7",
"@tsclass/tsclass": "^9.2.0",

82
pnpm-lock.yaml generated
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@ -35,6 +35,9 @@ importers:
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specifier: ^2.1.0
version: 2.1.0
'@push.rocks/smartrx':
specifier: ^3.0.10
version: 3.0.10
'@push.rocks/smartstring':
specifier: ^4.0.15
version: 4.0.15
@ -70,8 +73,8 @@ importers:
specifier: ^2.3.1
version: 2.3.1(@aws-sdk/credential-providers@3.798.0)(socks@2.8.4)(typescript@5.8.3)
'@types/node':
specifier: ^22.15.24
version: 22.15.24
specifier: ^22.15.29
version: 22.15.29
typescript:
specifier: ^5.8.3
version: 5.8.3
@ -977,9 +980,6 @@ packages:
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'@push.rocks/smartrx@3.0.7':
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'@push.rocks/smarts3@2.2.5':
resolution: {integrity: sha512-OZjD0jBCUTJCLnwraxBcyZ3he5buXf2OEM1zipiTBChA2EcKUZWKk/a6KR5WT+NlFCIIuB23UG+U+cxsIWM91Q==}
@ -1635,11 +1635,11 @@ packages:
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'@types/ping@0.4.4':
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@ -5708,6 +5708,7 @@ snapshots:
- '@aws-sdk/credential-providers'
- '@mongodb-js/zstd'
- '@nuxt/kit'
- aws-crt
- encoding
- gcp-metadata
- kerberos
@ -6130,11 +6131,6 @@ snapshots:
'@push.rocks/smartpromise': 4.2.3
rxjs: 7.8.2
'@push.rocks/smartrx@3.0.7':
dependencies:
'@push.rocks/smartpromise': 4.2.3
rxjs: 7.8.2
'@push.rocks/smarts3@2.2.5':
dependencies:
'@push.rocks/smartbucket': 3.3.7
@ -6300,7 +6296,7 @@ snapshots:
'@push.rocks/smartenv': 5.0.12
'@push.rocks/smartjson': 5.0.20
'@push.rocks/smartpromise': 4.2.3
'@push.rocks/smartrx': 3.0.7
'@push.rocks/smartrx': 3.0.10
'@tempfix/idb': 8.0.3
fake-indexeddb: 5.0.2
@ -7097,27 +7093,27 @@ snapshots:
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dependencies:
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'@types/node': 22.15.29
'@types/body-parser@1.19.5':
dependencies:
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'@types/node': 22.15.24
'@types/node': 22.15.29
'@types/buffer-json@2.0.3': {}
'@types/clean-css@4.2.11':
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source-map: 0.6.1
'@types/connect@3.4.38':
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'@types/node': 22.15.29
'@types/cors@2.8.18':
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'@types/debug@4.1.12':
dependencies:
@ -7129,7 +7125,7 @@ snapshots:
'@types/dns-packet@5.6.5':
dependencies:
'@types/node': 22.15.24
'@types/node': 22.15.29
'@types/elliptic@6.4.18':
dependencies:
@ -7137,7 +7133,7 @@ snapshots:
'@types/express-serve-static-core@5.0.6':
dependencies:
'@types/node': 22.15.24
'@types/node': 22.15.29
'@types/qs': 6.9.18
'@types/range-parser': 1.2.7
'@types/send': 0.17.4
@ -7154,30 +7150,30 @@ snapshots:
'@types/from2@2.3.5':
dependencies:
'@types/node': 22.15.24
'@types/node': 22.15.29
'@types/fs-extra@11.0.4':
dependencies:
'@types/jsonfile': 6.1.4
'@types/node': 22.15.24
'@types/node': 22.15.29
'@types/fs-extra@9.0.13':
dependencies:
'@types/node': 22.15.24
'@types/node': 22.15.29
'@types/glob@7.2.0':
dependencies:
'@types/minimatch': 5.1.2
'@types/node': 22.15.24
'@types/node': 22.15.29
'@types/glob@8.1.0':
dependencies:
'@types/minimatch': 5.1.2
'@types/node': 22.15.24
'@types/node': 22.15.29
'@types/gunzip-maybe@1.4.2':
dependencies:
'@types/node': 22.15.24
'@types/node': 22.15.29
'@types/hast@3.0.4':
dependencies:
@ -7199,7 +7195,7 @@ snapshots:
'@types/jsonfile@6.1.4':
dependencies:
'@types/node': 22.15.24
'@types/node': 22.15.29
'@types/mdast@4.0.4':
dependencies:
@ -7217,18 +7213,18 @@ snapshots:
'@types/node-fetch@2.6.12':
dependencies:
'@types/node': 22.15.24
'@types/node': 22.15.29
form-data: 4.0.2
'@types/node-forge@1.3.11':
dependencies:
'@types/node': 22.15.24
'@types/node': 22.15.29
'@types/node@18.19.105':
'@types/node@18.19.110':
dependencies:
undici-types: 5.26.5
'@types/node@22.15.24':
'@types/node@22.15.29':
dependencies:
undici-types: 6.21.0
@ -7244,30 +7240,30 @@ snapshots:
'@types/s3rver@3.7.4':
dependencies:
'@types/node': 22.15.24
'@types/node': 22.15.29
'@types/semver@7.7.0': {}
'@types/send@0.17.4':
dependencies:
'@types/mime': 1.3.5
'@types/node': 22.15.24
'@types/node': 22.15.29
'@types/serve-static@1.15.7':
dependencies:
'@types/http-errors': 2.0.4
'@types/node': 22.15.24
'@types/node': 22.15.29
'@types/send': 0.17.4
'@types/symbol-tree@3.2.5': {}
'@types/tar-stream@2.2.3':
dependencies:
'@types/node': 22.15.24
'@types/node': 22.15.29
'@types/through2@2.0.41':
dependencies:
'@types/node': 22.15.24
'@types/node': 22.15.29
'@types/triple-beam@1.3.5': {}
@ -7291,18 +7287,18 @@ snapshots:
'@types/whatwg-url@8.2.2':
dependencies:
'@types/node': 22.15.24
'@types/node': 22.15.29
'@types/webidl-conversions': 7.0.3
'@types/which@3.0.4': {}
'@types/ws@8.18.1':
dependencies:
'@types/node': 22.15.24
'@types/node': 22.15.29
'@types/yauzl@2.10.3':
dependencies:
'@types/node': 22.15.24
'@types/node': 22.15.29
optional: true
'@ungap/structured-clone@1.3.0': {}
@ -7582,7 +7578,7 @@ snapshots:
cloudflare@4.2.0:
dependencies:
'@types/node': 18.19.105
'@types/node': 18.19.110
'@types/node-fetch': 2.6.12
abort-controller: 3.0.0
agentkeepalive: 4.6.0
@ -7835,7 +7831,7 @@ snapshots:
engine.io@6.6.4:
dependencies:
'@types/cors': 2.8.18
'@types/node': 22.15.24
'@types/node': 22.15.29
accepts: 1.3.8
base64id: 2.0.0
cookie: 0.7.2

724
readme.connections.md Normal file
View File

@ -0,0 +1,724 @@
# Connection Management in SmartProxy
This document describes connection handling, cleanup mechanisms, and known issues in SmartProxy, particularly focusing on proxy chain configurations.
## Connection Accumulation Investigation (January 2025)
### Problem Statement
Connections may accumulate on the outer proxy in proxy chain configurations, despite implemented fixes.
### Historical Context
- **v19.5.12-v19.5.15**: Major connection cleanup improvements
- **v19.5.19+**: PROXY protocol support with WrappedSocket implementation
- **v19.5.20**: Fixed race condition in immediate routing cleanup
### Current Architecture
#### Connection Flow in Proxy Chains
```
Client → Outer Proxy (8001) → Inner Proxy (8002) → Backend (httpbin.org:443)
```
1. **Outer Proxy**:
- Accepts client connection
- Sends PROXY protocol header to inner proxy
- Tracks connection in ConnectionManager
- Immediate routing for non-TLS ports
2. **Inner Proxy**:
- Parses PROXY protocol to get real client IP
- Establishes connection to backend
- Tracks its own connections separately
### Potential Causes of Connection Accumulation
#### 1. Race Condition in Immediate Routing
When a connection is immediately routed (non-TLS ports), there's a timing window:
```typescript
// route-connection-handler.ts, line ~231
this.routeConnection(socket, record, '', undefined);
// Connection is routed before all setup is complete
```
**Issue**: If client disconnects during backend connection setup, cleanup may not trigger properly.
#### 2. Outgoing Socket Assignment Timing
Despite the fix in v19.5.20:
```typescript
// Line 1362 in setupDirectConnection
record.outgoing = targetSocket;
```
There's still a window between socket creation and the `connect` event where cleanup might miss the outgoing socket.
#### 3. Batch Cleanup Delays
ConnectionManager uses queued cleanup:
- Batch size: 100 connections
- Batch interval: 100ms
- Under rapid connection/disconnection, queue might lag
#### 4. Different Cleanup Paths
Multiple cleanup triggers exist:
- Socket 'close' event
- Socket 'error' event
- Inactivity timeout
- Connection timeout
- Manual cleanup
Not all paths may properly handle proxy chain scenarios.
#### 5. Keep-Alive Connection Handling
Keep-alive connections have special treatment:
- Extended inactivity timeout (6x normal)
- Warning before closure
- May accumulate if backend is unresponsive
### Observed Symptoms
1. **Outer proxy connection count grows over time**
2. **Inner proxy maintains zero or low connection count**
3. **Connections show as closed in logs but remain in tracking**
4. **Memory usage gradually increases**
### Debug Strategies
#### 1. Enhanced Logging
Add connection state logging at key points:
```typescript
// When outgoing socket is created
logger.log('debug', `Outgoing socket created for ${connectionId}`, {
hasOutgoing: !!record.outgoing,
outgoingState: record.outgoing?.readyState
});
```
#### 2. Connection State Inspection
Periodically log detailed connection state:
```typescript
for (const [id, record] of connectionManager.getConnections()) {
console.log({
id,
age: Date.now() - record.incomingStartTime,
incomingDestroyed: record.incoming.destroyed,
outgoingDestroyed: record.outgoing?.destroyed,
hasCleanupTimer: !!record.cleanupTimer
});
}
```
#### 3. Cleanup Verification
Track cleanup completion:
```typescript
// In cleanupConnection
logger.log('debug', `Cleanup completed for ${record.id}`, {
recordsRemaining: this.connectionRecords.size
});
```
### Recommendations
1. **Immediate Cleanup for Proxy Chains**
- Skip batch queue for proxy chain connections
- Use synchronous cleanup when PROXY protocol is detected
2. **Socket State Validation**
- Check both `destroyed` and `readyState` before cleanup decisions
- Handle 'opening' state sockets explicitly
3. **Timeout Adjustments**
- Shorter timeouts for proxy chain connections
- More aggressive cleanup for connections without data transfer
4. **Connection Limits**
- Per-route connection limits
- Backpressure when approaching limits
5. **Monitoring**
- Export connection metrics
- Alert on connection count thresholds
- Track connection age distribution
### Test Scenarios to Reproduce
1. **Rapid Connect/Disconnect**
```bash
# Create many short-lived connections
for i in {1..1000}; do
(echo -n | nc localhost 8001) &
done
```
2. **Slow Backend**
- Configure inner proxy to connect to unresponsive backend
- Monitor outer proxy connection count
3. **Mixed Traffic**
- Combine TLS and non-TLS connections
- Add keep-alive connections
- Observe accumulation patterns
### Future Improvements
1. **Connection Pool Isolation**
- Separate pools for proxy chain vs direct connections
- Different cleanup strategies per pool
2. **Circuit Breaker**
- Detect accumulation and trigger aggressive cleanup
- Temporary refuse new connections when near limit
3. **Connection State Machine**
- Explicit states: CONNECTING, ESTABLISHED, CLOSING, CLOSED
- State transition validation
- Timeout per state
4. **Metrics Collection**
- Connection lifecycle events
- Cleanup success/failure rates
- Time spent in each state
### Root Cause Identified (January 2025)
**The primary issue is on the inner proxy when backends are unreachable:**
When the backend is unreachable (e.g., non-routable IP like 10.255.255.1):
1. The outgoing socket gets stuck in "opening" state indefinitely
2. The `createSocketWithErrorHandler` in socket-utils.ts doesn't implement connection timeout
3. `socket.setTimeout()` only handles inactivity AFTER connection, not during connect phase
4. Connections accumulate because they never transition to error state
5. Socket timeout warnings fire but connections are preserved as keep-alive
**Code Issue:**
```typescript
// socket-utils.ts line 275
if (timeout) {
socket.setTimeout(timeout); // This only handles inactivity, not connection!
}
```
**Required Fix:**
1. Add `connectionTimeout` to ISmartProxyOptions interface:
```typescript
// In interfaces.ts
connectionTimeout?: number; // Timeout for establishing connection (ms), default: 30000 (30s)
```
2. Update `createSocketWithErrorHandler` in socket-utils.ts:
```typescript
export function createSocketWithErrorHandler(options: SafeSocketOptions): plugins.net.Socket {
const { port, host, onError, onConnect, timeout } = options;
const socket = new plugins.net.Socket();
let connected = false;
let connectionTimeout: NodeJS.Timeout | null = null;
socket.on('error', (error) => {
if (connectionTimeout) {
clearTimeout(connectionTimeout);
connectionTimeout = null;
}
if (onError) onError(error);
});
socket.on('connect', () => {
connected = true;
if (connectionTimeout) {
clearTimeout(connectionTimeout);
connectionTimeout = null;
}
if (timeout) socket.setTimeout(timeout); // Set inactivity timeout
if (onConnect) onConnect();
});
// Implement connection establishment timeout
if (timeout) {
connectionTimeout = setTimeout(() => {
if (!connected && !socket.destroyed) {
const error = new Error(`Connection timeout after ${timeout}ms to ${host}:${port}`);
(error as any).code = 'ETIMEDOUT';
socket.destroy();
if (onError) onError(error);
}
}, timeout);
}
socket.connect(port, host);
return socket;
}
```
3. Pass connectionTimeout in route-connection-handler.ts:
```typescript
const targetSocket = createSocketWithErrorHandler({
port: finalTargetPort,
host: finalTargetHost,
timeout: this.settings.connectionTimeout || 30000, // Connection timeout
onError: (error) => { /* existing */ },
onConnect: async () => { /* existing */ }
});
```
### Investigation Results (January 2025)
Based on extensive testing with debug scripts:
1. **Normal Operation**: In controlled tests, connections are properly cleaned up:
- Immediate routing cleanup handler properly destroys outgoing connections
- Both outer and inner proxies maintain 0 connections after clients disconnect
- Keep-alive connections are tracked and cleaned up correctly
2. **Potential Edge Cases Not Covered by Tests**:
- **HTTP/2 Connections**: May have different lifecycle than HTTP/1.1
- **WebSocket Connections**: Long-lived upgrade connections might persist
- **Partial TLS Handshakes**: Connections that start TLS but don't complete
- **PROXY Protocol Parse Failures**: Malformed headers from untrusted sources
- **Connection Pool Reuse**: HttpProxy component may maintain its own pools
3. **Timing-Sensitive Scenarios**:
- Client disconnects exactly when `record.outgoing` is being assigned
- Backend connects but immediately RSTs
- Proxy chain where middle proxy restarts
- Multiple rapid reconnects with same source IP/port
4. **Configuration-Specific Issues**:
- Mixed `sendProxyProtocol` settings in chain
- Different `keepAlive` settings between proxies
- Mismatched timeout values
- Routes with `forwardingEngine: 'nftables'`
### Additional Debug Points
Add these debug logs to identify the specific scenario:
```typescript
// In route-connection-handler.ts setupDirectConnection
logger.log('debug', `Setting outgoing socket for ${connectionId}`, {
timestamp: Date.now(),
hasOutgoing: !!record.outgoing,
socketState: targetSocket.readyState
});
// In connection-manager.ts cleanupConnection
logger.log('debug', `Cleanup attempt for ${record.id}`, {
alreadyClosed: record.connectionClosed,
hasIncoming: !!record.incoming,
hasOutgoing: !!record.outgoing,
incomingDestroyed: record.incoming?.destroyed,
outgoingDestroyed: record.outgoing?.destroyed
});
```
### Workarounds
Until root cause is identified:
1. **Periodic Force Cleanup**:
```typescript
setInterval(() => {
const connections = connectionManager.getConnections();
for (const [id, record] of connections) {
if (record.incoming?.destroyed && !record.connectionClosed) {
connectionManager.cleanupConnection(record, 'force_cleanup');
}
}
}, 60000); // Every minute
```
2. **Connection Age Limit**:
```typescript
// Add max connection age check
const maxAge = 3600000; // 1 hour
if (Date.now() - record.incomingStartTime > maxAge) {
connectionManager.cleanupConnection(record, 'max_age');
}
```
3. **Aggressive Timeout Settings**:
```typescript
{
socketTimeout: 60000, // 1 minute
inactivityTimeout: 300000, // 5 minutes
connectionCleanupInterval: 30000 // 30 seconds
}
```
### Related Files
- `/ts/proxies/smart-proxy/route-connection-handler.ts` - Main connection handling
- `/ts/proxies/smart-proxy/connection-manager.ts` - Connection tracking and cleanup
- `/ts/core/utils/socket-utils.ts` - Socket cleanup utilities
- `/test/test.proxy-chain-cleanup.node.ts` - Test for connection cleanup
- `/test/test.proxy-chaining-accumulation.node.ts` - Test for accumulation prevention
- `/.nogit/debug/connection-accumulation-debug.ts` - Debug script for connection states
- `/.nogit/debug/connection-accumulation-keepalive.ts` - Keep-alive specific tests
- `/.nogit/debug/connection-accumulation-http.ts` - HTTP traffic through proxy chains
### Summary
**Issue Identified**: Connection accumulation occurs on the **inner proxy** (not outer) when backends are unreachable.
**Root Cause**: The `createSocketWithErrorHandler` function in socket-utils.ts doesn't implement connection establishment timeout. It only sets `socket.setTimeout()` which handles inactivity AFTER connection is established, not during the connect phase.
**Impact**: When connecting to unreachable IPs (e.g., 10.255.255.1), outgoing sockets remain in "opening" state indefinitely, causing connections to accumulate.
**Fix Required**:
1. Add `connectionTimeout` setting to ISmartProxyOptions
2. Implement proper connection timeout in `createSocketWithErrorHandler`
3. Pass the timeout value from route-connection-handler
**Workaround Until Fixed**: Configure shorter socket timeouts and use the periodic force cleanup suggested above.
The connection cleanup mechanisms have been significantly improved in v19.5.20:
1. Race condition fixed by setting `record.outgoing` before connecting
2. Immediate routing cleanup handler always destroys outgoing connections
3. Tests confirm no accumulation in standard scenarios with reachable backends
However, the missing connection establishment timeout causes accumulation when backends are unreachable or very slow to connect.
### Outer Proxy Sudden Accumulation After Hours
**User Report**: "The counter goes up suddenly after some hours on the outer proxy"
**Investigation Findings**:
1. **Cleanup Queue Mechanism**:
- Connections are cleaned up in batches of 100 via a queue
- If the cleanup timer gets stuck or cleared without restart, connections accumulate
- The timer is set with `setTimeout` and could be affected by event loop blocking
2. **Potential Causes for Sudden Spikes**:
a) **Cleanup Timer Failure**:
```typescript
// In ConnectionManager, if this timer gets cleared but not restarted:
this.cleanupTimer = this.setTimeout(() => {
this.processCleanupQueue();
}, 100);
```
b) **Memory Pressure**:
- After hours of operation, memory fragmentation or pressure could cause delays
- Garbage collection pauses might interfere with timer execution
c) **Event Listener Accumulation**:
- Socket event listeners might accumulate over time
- Server 'connection' event handlers are particularly important
d) **Keep-Alive Connection Cascades**:
- When many keep-alive connections timeout simultaneously
- Outer proxy has different timeout than inner proxy
- Mass disconnection events can overwhelm cleanup queue
e) **HttpProxy Component Issues**:
- If using `useHttpProxy`, the HttpProxy bridge might maintain connection pools
- These pools might not be properly cleaned after hours
3. **Why "Sudden" After Hours**:
- Not a gradual leak but triggered by specific conditions
- Likely related to periodic events or thresholds:
- Inactivity check runs every 30 seconds
- Keep-alive connections have extended timeouts (6x normal)
- Parity check has 30-minute timeout for half-closed connections
4. **Reproduction Scenarios**:
- Mass client disconnection/reconnection (network blip)
- Keep-alive timeout cascade when inner proxy times out first
- Cleanup timer getting stuck during high load
- Memory pressure causing event loop delays
### Additional Monitoring Recommendations
1. **Add Cleanup Queue Monitoring**:
```typescript
setInterval(() => {
const cm = proxy.connectionManager;
if (cm.cleanupQueue.size > 100 && !cm.cleanupTimer) {
logger.error('Cleanup queue stuck!', {
queueSize: cm.cleanupQueue.size,
hasTimer: !!cm.cleanupTimer
});
}
}, 60000);
```
2. **Track Timer Health**:
- Monitor if cleanup timer is running
- Check for event loop blocking
- Log when batch processing takes too long
3. **Memory Monitoring**:
- Track heap usage over time
- Monitor for memory leaks in long-running processes
- Force periodic garbage collection if needed
### Immediate Mitigations
1. **Restart Cleanup Timer**:
```typescript
// Emergency cleanup timer restart
if (!cm.cleanupTimer && cm.cleanupQueue.size > 0) {
cm.cleanupTimer = setTimeout(() => {
cm.processCleanupQueue();
}, 100);
}
```
2. **Force Periodic Cleanup**:
```typescript
setInterval(() => {
const cm = connectionManager;
if (cm.getConnectionCount() > threshold) {
cm.performOptimizedInactivityCheck();
// Force process cleanup queue
cm.processCleanupQueue();
}
}, 300000); // Every 5 minutes
```
3. **Connection Age Limits**:
- Set maximum connection lifetime
- Force close connections older than threshold
- More aggressive cleanup for proxy chains
## ✅ FIXED: Zombie Connection Detection (January 2025)
### Root Cause Identified
"Zombie connections" occur when sockets are destroyed without triggering their close/error event handlers. This causes connections to remain tracked with both sockets destroyed but `connectionClosed=false`. This is particularly problematic in proxy chains where the inner proxy might close connections in ways that don't trigger proper events on the outer proxy.
### Fix Implemented
Added zombie detection to the periodic inactivity check in ConnectionManager:
```typescript
// In performOptimizedInactivityCheck()
// Check ALL connections for zombie state
for (const [connectionId, record] of this.connectionRecords) {
if (!record.connectionClosed) {
const incomingDestroyed = record.incoming?.destroyed || false;
const outgoingDestroyed = record.outgoing?.destroyed || false;
// Check for zombie connections: both sockets destroyed but not cleaned up
if (incomingDestroyed && outgoingDestroyed) {
logger.log('warn', `Zombie connection detected: ${connectionId} - both sockets destroyed but not cleaned up`, {
connectionId,
remoteIP: record.remoteIP,
age: plugins.prettyMs(now - record.incomingStartTime),
component: 'connection-manager'
});
// Clean up immediately
this.cleanupConnection(record, 'zombie_cleanup');
continue;
}
// Check for half-zombie: one socket destroyed
if (incomingDestroyed || outgoingDestroyed) {
const age = now - record.incomingStartTime;
// Give it 30 seconds grace period for normal cleanup
if (age > 30000) {
logger.log('warn', `Half-zombie connection detected: ${connectionId} - ${incomingDestroyed ? 'incoming' : 'outgoing'} destroyed`, {
connectionId,
remoteIP: record.remoteIP,
age: plugins.prettyMs(age),
incomingDestroyed,
outgoingDestroyed,
component: 'connection-manager'
});
// Clean up
this.cleanupConnection(record, 'half_zombie_cleanup');
}
}
}
}
```
### How It Works
1. **Full Zombie Detection**: Detects when both incoming and outgoing sockets are destroyed but the connection hasn't been cleaned up
2. **Half-Zombie Detection**: Detects when only one socket is destroyed, with a 30-second grace period for normal cleanup to occur
3. **Automatic Cleanup**: Immediately cleans up zombie connections when detected
4. **Runs Periodically**: Integrated into the existing inactivity check that runs every 30 seconds
### Why This Fixes the Outer Proxy Accumulation
- When inner proxy closes connections abruptly (e.g., due to backend failure), the outer proxy's outgoing socket might be destroyed without firing close/error events
- These become zombie connections that previously accumulated indefinitely
- Now they are detected and cleaned up within 30 seconds
### Test Results
Debug scripts confirmed:
- Zombie connections can be created when sockets are destroyed directly without events
- The zombie detection successfully identifies and cleans up these connections
- Both full zombies (both sockets destroyed) and half-zombies (one socket destroyed) are handled
This fix addresses the specific issue where "connections that are closed on the inner proxy, always also close on the outer proxy" as requested by the user.
## 🔍 Production Diagnostics (January 2025)
Since the zombie detection fix didn't fully resolve the issue, use the ProductionConnectionMonitor to diagnose the actual problem:
### How to Use the Production Monitor
1. **Add to your proxy startup script**:
```typescript
import ProductionConnectionMonitor from './production-connection-monitor.js';
// After proxy.start()
const monitor = new ProductionConnectionMonitor(proxy);
monitor.start(5000); // Check every 5 seconds
// Monitor will automatically capture diagnostics when:
// - Connections exceed threshold (default: 50)
// - Sudden spike occurs (default: +20 connections)
```
2. **Diagnostics are saved to**: `.nogit/connection-diagnostics/`
3. **Force capture anytime**: `monitor.forceCaptureNow()`
### What the Monitor Captures
For each connection:
- Socket states (destroyed, readable, writable, readyState)
- Connection flags (closed, keepAlive, TLS status)
- Data transfer statistics
- Time since last activity
- Cleanup queue status
- Event listener counts
- Termination reasons
### Pattern Analysis
The monitor automatically identifies:
- **Zombie connections**: Both sockets destroyed but not cleaned up
- **Half-zombies**: One socket destroyed
- **Stuck connecting**: Outgoing socket stuck in connecting state
- **No outgoing**: Missing outgoing socket
- **Keep-alive stuck**: Keep-alive connections with no recent activity
- **Old connections**: Connections older than 1 hour
- **No data transfer**: Connections with no bytes transferred
- **Listener leaks**: Excessive event listeners
### Common Accumulation Patterns
1. **Connecting State Stuck**
- Outgoing socket shows `connecting: true` indefinitely
- Usually means connection timeout not working
- Check if backend is reachable
2. **Missing Outgoing Socket**
- Connection has no outgoing socket but isn't closed
- May indicate immediate routing issues
- Check error logs during connection setup
3. **Event Listener Accumulation**
- High listener counts (>20) on sockets
- Indicates cleanup not removing all listeners
- Can cause memory leaks
4. **Keep-Alive Zombies**
- Keep-alive connections not timing out
- Check keepAlive timeout settings
- May need more aggressive cleanup
### Next Steps
1. **Run the monitor in production** during accumulation
2. **Share the diagnostic files** from `.nogit/connection-diagnostics/`
3. **Look for patterns** in the captured snapshots
4. **Check specific connection IDs** that accumulate
The diagnostic files will show exactly what state connections are in when accumulation occurs, allowing targeted fixes for the specific issue.
## ✅ FIXED: Stuck Connection Detection (January 2025)
### Additional Root Cause Found
Connections to hanging backends (that accept but never respond) were not being cleaned up because:
- Both sockets remain alive (not destroyed)
- Keep-alive prevents normal timeout
- No data is sent back to the client despite receiving data
- These don't qualify as "zombies" since sockets aren't destroyed
### Fix Implemented
Added stuck connection detection to the periodic inactivity check:
```typescript
// Check for stuck connections: no data sent back to client
if (!record.connectionClosed && record.outgoing && record.bytesReceived > 0 && record.bytesSent === 0) {
const age = now - record.incomingStartTime;
// If connection is older than 60 seconds and no data sent back, likely stuck
if (age > 60000) {
logger.log('warn', `Stuck connection detected: ${connectionId} - received ${record.bytesReceived} bytes but sent 0 bytes`, {
connectionId,
remoteIP: record.remoteIP,
age: plugins.prettyMs(age),
bytesReceived: record.bytesReceived,
targetHost: record.targetHost,
targetPort: record.targetPort,
component: 'connection-manager'
});
// Clean up
this.cleanupConnection(record, 'stuck_no_response');
}
}
```
### What This Fixes
- Connections to backends that accept but never respond
- Proxy chains where inner proxy connects to unresponsive services
- Scenarios where keep-alive prevents normal timeout mechanisms
- Connections that receive client data but never send anything back
### Detection Criteria
- Connection has received bytes from client (`bytesReceived > 0`)
- No bytes sent back to client (`bytesSent === 0`)
- Connection is older than 60 seconds
- Both sockets are still alive (not destroyed)
This complements the zombie detection by handling cases where sockets remain technically alive but the connection is effectively dead.
## 🚨 CRITICAL FIX: Cleanup Queue Bug (January 2025)
### Critical Bug Found
The cleanup queue had a severe bug that caused connection accumulation when more than 100 connections needed cleanup:
```typescript
// BUG: This cleared the ENTIRE queue after processing only the first batch!
const toCleanup = Array.from(this.cleanupQueue).slice(0, this.cleanupBatchSize);
this.cleanupQueue.clear(); // ❌ This discarded all connections beyond the first 100!
```
### Fix Implemented
```typescript
// Now only removes the connections being processed
const toCleanup = Array.from(this.cleanupQueue).slice(0, this.cleanupBatchSize);
for (const connectionId of toCleanup) {
this.cleanupQueue.delete(connectionId); // ✅ Only remove what we process
const record = this.connectionRecords.get(connectionId);
if (record) {
this.cleanupConnection(record, record.incomingTerminationReason || 'normal');
}
}
```
### Impact
- **Before**: If 150 connections needed cleanup, only the first 100 would be processed and the remaining 50 would accumulate forever
- **After**: All connections are properly cleaned up in batches
### Additional Improvements
1. **Faster Inactivity Checks**: Reduced from 30s to 10s intervals
- Zombies and stuck connections are detected 3x faster
- Reduces the window for accumulation
2. **Duplicate Prevention**: Added check in queueCleanup to prevent processing already-closed connections
- Prevents unnecessary work
- Ensures connections are only cleaned up once
### Summary of All Fixes
1. **Connection Timeout** (already documented) - Prevents accumulation when backends are unreachable
2. **Zombie Detection** - Cleans up connections with destroyed sockets
3. **Stuck Connection Detection** - Cleans up connections to hanging backends
4. **Cleanup Queue Bug** - Ensures ALL connections get cleaned up, not just the first 100
5. **Faster Detection** - Reduced check interval from 30s to 10s
These fixes combined should prevent connection accumulation in all known scenarios.

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@ -0,0 +1,187 @@
# SmartProxy Code Deletion Plan
This document tracks all code paths that can be deleted as part of the routing unification effort.
## Phase 1: Matching Logic Duplicates (READY TO DELETE)
### 1. Inline Matching Functions in RouteManager
**File**: `ts/proxies/smart-proxy/route-manager.ts`
**Lines**: Approximately lines 200-400
**Duplicates**:
- `matchDomain()` method - duplicate of DomainMatcher
- `matchPath()` method - duplicate of PathMatcher
- `matchIpPattern()` method - duplicate of IpMatcher
- `matchHeaders()` method - duplicate of HeaderMatcher
**Action**: Update to use unified matchers from `ts/core/routing/matchers/`
### 2. Duplicate Matching in Core route-utils
**File**: `ts/core/utils/route-utils.ts`
**Functions to update**:
- `matchDomain()` → Use DomainMatcher.match()
- `matchPath()` → Use PathMatcher.match()
- `matchIpPattern()` → Use IpMatcher.match()
- `matchHeader()` → Use HeaderMatcher.match()
**Action**: Update to use unified matchers, keep only unique utilities
## Phase 2: Route Manager Duplicates (READY AFTER MIGRATION)
### 1. SmartProxy RouteManager
**File**: `ts/proxies/smart-proxy/route-manager.ts`
**Entire file**: ~500 lines
**Reason**: 95% duplicate of SharedRouteManager
**Migration Required**:
- Update SmartProxy to use SharedRouteManager
- Update all imports
- Test thoroughly
**Action**: DELETE entire file after migration
### 2. Deprecated Methods in SharedRouteManager
**File**: `ts/core/utils/route-manager.ts`
**Methods**:
- Any deprecated security check methods
- Legacy compatibility methods
**Action**: Remove after confirming no usage
## Phase 3: Router Consolidation (REQUIRES REFACTORING)
### 1. ProxyRouter vs RouteRouter Duplication
**Files**:
- `ts/routing/router/proxy-router.ts` (~250 lines)
- `ts/routing/router/route-router.ts` (~250 lines)
**Reason**: Nearly identical implementations
**Plan**: Merge into single HttpRouter with legacy adapter
**Action**: DELETE one file after consolidation
### 2. Inline Route Matching in HttpProxy
**Location**: Various files in `ts/proxies/http-proxy/`
**Pattern**: Direct route matching without using RouteManager
**Action**: Update to use SharedRouteManager
## Phase 4: Scattered Utilities (CLEANUP)
### 1. Duplicate Route Utilities
**Files with duplicate logic**:
- `ts/proxies/smart-proxy/utils/route-utils.ts` - Keep (different purpose)
- `ts/proxies/smart-proxy/utils/route-validators.ts` - Review for duplicates
- `ts/proxies/smart-proxy/utils/route-patterns.ts` - Review for consolidation
### 2. Legacy Type Definitions
**Review for removal**:
- Old route type definitions
- Deprecated configuration interfaces
- Unused type exports
## Deletion Progress Tracker
### Completed Deletions
- [x] Phase 1: Matching logic consolidation (Partial)
- Updated core/utils/route-utils.ts to use unified matchers
- Removed duplicate matching implementations (~200 lines)
- Marked functions as deprecated with migration path
- [x] Phase 2: RouteManager unification (COMPLETED)
- ✓ Migrated SmartProxy to use SharedRouteManager
- ✓ Updated imports in smart-proxy.ts, route-connection-handler.ts, and index.ts
- ✓ Created logger adapter to match ILogger interface expectations
- ✓ Fixed method calls (getAllRoutes → getRoutes)
- ✓ Fixed type errors in header matcher
- ✓ Removed unused ipToNumber imports and methods
- ✓ DELETED: `/ts/proxies/smart-proxy/route-manager.ts` (553 lines removed)
- [x] Phase 3: Router consolidation (COMPLETED)
- ✓ Created unified HttpRouter with legacy compatibility
- ✓ Migrated ProxyRouter and RouteRouter to use HttpRouter aliases
- ✓ Updated imports in http-proxy.ts, request-handler.ts, websocket-handler.ts
- ✓ Added routeReqLegacy() method for backward compatibility
- ✓ DELETED: `/ts/routing/router/proxy-router.ts` (437 lines)
- ✓ DELETED: `/ts/routing/router/route-router.ts` (482 lines)
- [x] Phase 4: Architecture cleanup (COMPLETED)
- ✓ Updated route-utils.ts to use unified matchers directly
- ✓ Removed deprecated methods from SharedRouteManager
- ✓ Fixed HeaderMatcher.matchMultiple → matchAll method name
- ✓ Fixed findMatchingRoute return type handling (IRouteMatchResult)
- ✓ Fixed header type conversion for RegExp patterns
- ✓ DELETED: Duplicate RouteManager class from http-proxy/models/types.ts (~200 lines)
- ✓ Updated all imports to use SharedRouteManager from core/utils
- ✓ Fixed PathMatcher exact match behavior (added $ anchor for non-wildcard patterns)
- ✓ Updated test expectations to match unified matcher behavior
- ✓ All TypeScript errors resolved and build successful
- [x] Phase 5: Remove all backward compatibility code (COMPLETED)
- ✓ Removed routeReqLegacy() method from HttpRouter
- ✓ Removed all legacy compatibility methods from HttpRouter (~130 lines)
- ✓ Removed LegacyRouterResult interface
- ✓ Removed ProxyRouter and RouteRouter aliases
- ✓ Updated RequestHandler to remove legacyRouter parameter and legacy routing fallback (~80 lines)
- ✓ Updated WebSocketHandler to remove legacyRouter parameter and legacy routing fallback
- ✓ Updated HttpProxy to use only unified HttpRouter
- ✓ Removed IReverseProxyConfig interface (deprecated legacy interface)
- ✓ Removed useExternalPort80Handler deprecated option
- ✓ Removed backward compatibility exports from index.ts
- ✓ Removed all deprecated functions from route-utils.ts (~50 lines)
- ✓ Clean build with no legacy code
### Files Updated
1. `ts/core/utils/route-utils.ts` - Replaced all matching logic with unified matchers
2. `ts/core/utils/security-utils.ts` - Updated to use IpMatcher directly
3. `ts/proxies/smart-proxy/smart-proxy.ts` - Using SharedRouteManager with logger adapter
4. `ts/proxies/smart-proxy/route-connection-handler.ts` - Updated to use SharedRouteManager
5. `ts/proxies/smart-proxy/index.ts` - Exporting SharedRouteManager as RouteManager
6. `ts/core/routing/matchers/header.ts` - Fixed type handling for array header values
7. `ts/core/utils/route-manager.ts` - Removed unused ipToNumber import
8. `ts/proxies/http-proxy/http-proxy.ts` - Updated imports to use unified router
9. `ts/proxies/http-proxy/request-handler.ts` - Updated to use routeReqLegacy()
10. `ts/proxies/http-proxy/websocket-handler.ts` - Updated to use routeReqLegacy()
11. `ts/routing/router/index.ts` - Export unified HttpRouter with aliases
12. `ts/proxies/smart-proxy/utils/route-utils.ts` - Updated to use unified matchers directly
13. `ts/proxies/http-proxy/request-handler.ts` - Fixed findMatchingRoute usage
14. `ts/proxies/http-proxy/models/types.ts` - Removed duplicate RouteManager class
15. `ts/index.ts` - Updated exports to use SharedRouteManager aliases
16. `ts/proxies/index.ts` - Updated exports to use SharedRouteManager aliases
17. `test/test.acme-route-creation.ts` - Fixed getAllRoutes → getRoutes method call
### Files Created
1. `ts/core/routing/matchers/domain.ts` - Unified domain matcher
2. `ts/core/routing/matchers/path.ts` - Unified path matcher
3. `ts/core/routing/matchers/ip.ts` - Unified IP matcher
4. `ts/core/routing/matchers/header.ts` - Unified header matcher
5. `ts/core/routing/matchers/index.ts` - Matcher exports
6. `ts/core/routing/types.ts` - Core routing types
7. `ts/core/routing/specificity.ts` - Route specificity calculator
8. `ts/core/routing/index.ts` - Main routing exports
9. `ts/routing/router/http-router.ts` - Unified HTTP router
### Lines of Code Removed
- Target: ~1,500 lines
- Actual: ~2,332 lines (Target exceeded by 55%!)
- Phase 1: ~200 lines (matching logic)
- Phase 2: 553 lines (SmartProxy RouteManager)
- Phase 3: 919 lines (ProxyRouter + RouteRouter)
- Phase 4: ~200 lines (Duplicate RouteManager from http-proxy)
- Phase 5: ~460 lines (Legacy compatibility code)
## Unified Routing Architecture Summary
The routing unification effort has successfully:
1. **Created unified matchers** - Consistent matching logic across all route types
- DomainMatcher: Wildcard domain matching with specificity calculation
- PathMatcher: Path pattern matching with parameter extraction
- IpMatcher: IP address and CIDR notation matching
- HeaderMatcher: HTTP header matching with regex support
2. **Consolidated route managers** - Single SharedRouteManager for all proxies
3. **Unified routers** - Single HttpRouter for all HTTP routing needs
4. **Removed ~2,332 lines of code** - Exceeded target by 55%
5. **Clean modern architecture** - No legacy code, no backward compatibility layers
## Safety Checklist Before Deletion
Before deleting any code:
1. ✓ All tests pass
2. ✓ No references to deleted code remain
3. ✓ Migration path tested
4. ✓ Performance benchmarks show no regression
5. ✓ Documentation updated
## Rollback Plan
If issues arise after deletion:
1. Git history preserves all deleted code
2. Each phase can be reverted independently
3. Feature flags can disable new code if needed

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@ -30,10 +30,72 @@
- Test: `pnpm test` (runs `tstest test/`).
- Format: `pnpm format` (runs `gitzone format`).
## Testing Framework
- Uses `@push.rocks/tapbundle` (`tap`, `expect`, `expactAsync`).
- Test files: must start with `test.` and use `.ts` extension.
- Run specific tests via `tsx`, e.g., `tsx test/test.router.ts`.
## How to Test
### Test Structure
Tests use tapbundle from `@git.zone/tstest`. The correct pattern is:
```typescript
import { tap, expect } from '@git.zone/tstest/tapbundle';
tap.test('test description', async () => {
// Test logic here
expect(someValue).toEqual(expectedValue);
});
// IMPORTANT: Must end with tap.start()
tap.start();
```
### Expect Syntax (from @push.rocks/smartexpect)
```typescript
// Type assertions
expect('hello').toBeTypeofString();
expect(42).toBeTypeofNumber();
// Equality
expect('hithere').toEqual('hithere');
// Negated assertions
expect(1).not.toBeTypeofString();
// Regular expressions
expect('hithere').toMatch(/hi/);
// Numeric comparisons
expect(5).toBeGreaterThan(3);
expect(0.1 + 0.2).toBeCloseTo(0.3, 10);
// Arrays
expect([1, 2, 3]).toContain(2);
expect([1, 2, 3]).toHaveLength(3);
// Async assertions
await expect(asyncFunction()).resolves.toEqual('expected');
await expect(asyncFunction()).resolves.withTimeout(5000).toBeTypeofString();
// Complex object navigation
expect(complexObject)
.property('users')
.arrayItem(0)
.property('name')
.toEqual('Alice');
```
### Test Modifiers
- `tap.only.test()` - Run only this test
- `tap.skip.test()` - Skip a test
- `tap.timeout()` - Set test-specific timeout
### Running Tests
- All tests: `pnpm test`
- Specific test: `tsx test/test.router.ts`
- With options: `tstest test/**/*.ts --verbose --timeout 60`
### Test File Requirements
- Must start with `test.` prefix
- Must use `.ts` extension
- Must call `tap.start()` at the end
## Coding Conventions
- Import modules via `plugins.ts`:
@ -192,4 +254,644 @@ if (result instanceof Promise) {
- Verifies that initial data is received even when handler sets up listeners after async work
### Usage Note
Socket handlers require initial data from the client to trigger routing (not just a TLS handshake). Clients must send at least one byte of data for the handler to be invoked.
Socket handlers require initial data from the client to trigger routing (not just a TLS handshake). Clients must send at least one byte of data for the handler to be invoked.
## Route-Specific Security Implementation (v19.5.3)
### Issue
Route-specific security configurations (ipAllowList, ipBlockList, authentication) were defined in the route types but not enforced at runtime.
### Root Cause
The RouteConnectionHandler only checked global IP validation but didn't enforce route-specific security rules after matching a route.
### Solution
Added security checks after route matching:
```typescript
// Apply route-specific security checks
const routeSecurity = route.action.security || route.security;
if (routeSecurity) {
// Check IP allow/block lists
if (routeSecurity.ipAllowList || routeSecurity.ipBlockList) {
const isIPAllowed = this.securityManager.isIPAuthorized(
remoteIP,
routeSecurity.ipAllowList || [],
routeSecurity.ipBlockList || []
);
if (!isIPAllowed) {
socket.end();
this.connectionManager.cleanupConnection(record, 'route_ip_blocked');
return;
}
}
}
```
### Test Coverage
- `test/test.route-security-unit.ts` - Unit tests verifying SecurityManager.isIPAuthorized logic
- Tests confirm IP allow/block lists work correctly with glob patterns
### Configuration Example
```typescript
const routes: IRouteConfig[] = [{
name: 'secure-api',
match: { ports: 8443, domains: 'api.example.com' },
action: {
type: 'forward',
target: { host: 'localhost', port: 3000 },
security: {
ipAllowList: ['192.168.1.*', '10.0.0.0/8'], // Allow internal IPs
ipBlockList: ['192.168.1.100'], // But block specific IP
maxConnections: 100, // Per-route limit (TODO)
authentication: { // HTTP-only, requires TLS termination
type: 'basic',
credentials: [{ username: 'api', password: 'secret' }]
}
}
}
}];
```
### Notes
- IP lists support glob patterns (via minimatch): `192.168.*`, `10.?.?.1`
- Block lists take precedence over allow lists
- Authentication requires TLS termination (cannot be enforced on passthrough/direct connections)
- Per-route connection limits are not yet implemented
- Security is defined at the route level (route.security), not in the action
- Route matching is based solely on match criteria; security is enforced after matching
## Performance Issues Investigation (v19.5.3+)
### Critical Blocking Operations Found
1. **Busy Wait Loop** in `ts/proxies/nftables-proxy/nftables-proxy.ts:235-238`
- Blocks entire event loop with `while (Date.now() < waitUntil) {}`
- Should use `await new Promise(resolve => setTimeout(resolve, delay))`
2. **Synchronous Filesystem Operations**
- Certificate management uses `fs.existsSync()`, `fs.mkdirSync()`, `fs.readFileSync()`
- NFTables proxy uses `execSync()` for system commands
- Certificate store uses `ensureDirSync()`, `fileExistsSync()`, `removeManySync()`
3. **Memory Leak Risks**
- Several `setInterval()` calls without storing references for cleanup
- Event listeners added without proper cleanup in error paths
- Missing `removeAllListeners()` calls in some connection cleanup scenarios
### Performance Recommendations
- Replace all sync filesystem operations with async alternatives
- Fix the busy wait loop immediately (critical event loop blocker)
- Add proper cleanup for all timers and event listeners
- Consider worker threads for CPU-intensive operations
- See `readme.problems.md` for detailed analysis and recommendations
## Performance Optimizations Implemented (Phase 1 - v19.6.0)
### 1. Async Utilities Created (`ts/core/utils/async-utils.ts`)
- **delay()**: Non-blocking alternative to busy wait loops
- **retryWithBackoff()**: Retry operations with exponential backoff
- **withTimeout()**: Execute operations with timeout protection
- **parallelLimit()**: Run async operations with concurrency control
- **debounceAsync()**: Debounce async functions
- **AsyncMutex**: Ensure exclusive access to resources
- **CircuitBreaker**: Protect against cascading failures
### 2. Filesystem Utilities Created (`ts/core/utils/fs-utils.ts`)
- **AsyncFileSystem**: Complete async filesystem operations
- exists(), ensureDir(), readFile(), writeFile()
- readJSON(), writeJSON() with proper error handling
- copyFile(), moveFile(), removeDir()
- Stream creation and file listing utilities
### 3. Critical Fixes Applied
#### Busy Wait Loop Fixed
- **Location**: `ts/proxies/nftables-proxy/nftables-proxy.ts:235-238`
- **Fix**: Replaced `while (Date.now() < waitUntil) {}` with `await delay(ms)`
- **Impact**: Unblocks event loop, massive performance improvement
#### Certificate Manager Migration
- **File**: `ts/proxies/http-proxy/certificate-manager.ts`
- Added async initialization method
- Kept sync methods for backward compatibility with deprecation warnings
- Added `loadDefaultCertificatesAsync()` method
#### Certificate Store Migration
- **File**: `ts/proxies/smart-proxy/cert-store.ts`
- Replaced all `fileExistsSync`, `ensureDirSync`, `removeManySync`
- Used parallel operations with `Promise.all()` for better performance
- Improved error handling and async JSON operations
#### NFTables Proxy Improvements
- Added deprecation warnings to sync methods
- Created `executeWithTempFile()` helper for common pattern
- Started migration of sync filesystem operations to async
- Added import for delay and AsyncFileSystem utilities
### 4. Backward Compatibility Maintained
- All sync methods retained with deprecation warnings
- Existing APIs unchanged, new async methods added alongside
- Feature flags prepared for gradual rollout
### 5. Phase 1 Completion Status
✅ **Phase 1 COMPLETE** - All critical performance fixes have been implemented:
- ✅ Fixed busy wait loop in nftables-proxy.ts
- ✅ Created async utilities (delay, retry, timeout, parallelLimit, mutex, circuit breaker)
- ✅ Created filesystem utilities (AsyncFileSystem with full async operations)
- ✅ Migrated all certificate management to async operations
- ✅ Migrated nftables-proxy filesystem operations to async (except stopSync for exit handlers)
- ✅ All tests passing for new utilities
### 6. Phase 2 Progress Status
🔨 **Phase 2 IN PROGRESS** - Resource Lifecycle Management:
- ✅ Created LifecycleComponent base class for automatic resource cleanup
- ✅ Created BinaryHeap data structure for priority queue operations
- ✅ Created EnhancedConnectionPool with backpressure and health checks
- ✅ Cleaned up legacy code (removed ts/common/, event-utils.ts, event-system.ts)
- 📋 TODO: Migrate existing components to extend LifecycleComponent
- 📋 TODO: Add integration tests for resource management
### 7. Next Steps (Remaining Work)
- **Phase 2 (cont)**: Migrate components to use LifecycleComponent
- **Phase 3**: Add worker threads for CPU-intensive operations
- **Phase 4**: Performance monitoring dashboard
## Socket Error Handling Fix (v19.5.11+)
### Issue
Server crashed with unhandled 'error' event when backend connections failed (ECONNREFUSED). Also caused memory leak with rising active connection count as failed connections weren't cleaned up properly.
### Root Cause
1. **Race Condition**: In forwarding handlers, sockets were created with `net.connect()` but error handlers were attached later, creating a window where errors could crash the server
2. **Incomplete Cleanup**: When server connections failed, client sockets weren't properly cleaned up, leaving connection records in memory
### Solution
Created `createSocketWithErrorHandler()` utility that attaches error handlers immediately:
```typescript
// Before (race condition):
const socket = net.connect(port, host);
// ... other code ...
socket.on('error', handler); // Too late!
// After (safe):
const socket = createSocketWithErrorHandler({
port, host,
onError: (error) => {
// Handle error immediately
clientSocket.destroy();
},
onConnect: () => {
// Set up forwarding
}
});
```
### Changes Made
1. **New Utility**: `ts/core/utils/socket-utils.ts` - Added `createSocketWithErrorHandler()`
2. **Updated Handlers**:
- `https-passthrough-handler.ts` - Uses safe socket creation
- `https-terminate-to-http-handler.ts` - Uses safe socket creation
3. **Connection Cleanup**: Client sockets destroyed immediately on server connection failure
### Test Coverage
- `test/test.socket-error-handling.node.ts` - Verifies server doesn't crash on ECONNREFUSED
- `test/test.forwarding-error-fix.node.ts` - Tests forwarding handlers handle errors gracefully
### Configuration
No configuration changes needed. The fix is transparent to users.
### Important Note
The fix was applied in two places:
1. **ForwardingHandler classes** (`https-passthrough-handler.ts`, etc.) - These are standalone forwarding utilities
2. **SmartProxy route-connection-handler** (`route-connection-handler.ts`) - This is where the actual SmartProxy connection handling happens
The critical fix for SmartProxy was in `setupDirectConnection()` method in route-connection-handler.ts, which now uses `createSocketWithErrorHandler()` to properly handle connection failures and clean up connection records.
## Connection Cleanup Improvements (v19.5.12+)
### Issue
Connections were still counting up during rapid retry scenarios, especially when routing failed or backend connections were refused. This was due to:
1. **Delayed Cleanup**: Using `initiateCleanupOnce` queued cleanup operations (batch of 100 every 100ms) instead of immediate cleanup
2. **NFTables Memory Leak**: NFTables connections were never cleaned up, staying in memory forever
3. **Connection Limit Bypass**: When max connections reached, connection record check happened after creation
### Root Cause Analysis
1. **Queued vs Immediate Cleanup**:
- `initiateCleanupOnce()`: Adds to cleanup queue, processes up to 100 connections every 100ms
- `cleanupConnection()`: Immediate synchronous cleanup
- Under rapid retries, connections were created faster than the queue could process them
2. **NFTables Connections**:
- Marked with `usingNetworkProxy = true` but never cleaned up
- Connection records stayed in memory indefinitely
3. **Error Path Cleanup**:
- Many error paths used `socket.end()` (async) followed by cleanup
- Created timing windows where connections weren't fully cleaned
### Solution
1. **Immediate Cleanup**: Changed all error paths from `initiateCleanupOnce()` to `cleanupConnection()` for immediate cleanup
2. **NFTables Cleanup**: Added socket close listener to clean up connection records when NFTables connections close
3. **Connection Limit Fix**: Added null check after `createConnection()` to handle rejection properly
### Changes Made in route-connection-handler.ts
```typescript
// 1. NFTables cleanup (line 551-553)
socket.once('close', () => {
this.connectionManager.cleanupConnection(record, 'nftables_closed');
});
// 2. Connection limit check (line 93-96)
const record = this.connectionManager.createConnection(socket);
if (!record) {
// Connection was rejected due to limit - socket already destroyed
return;
}
// 3. Changed all error paths to use immediate cleanup
// Before: this.connectionManager.initiateCleanupOnce(record, reason)
// After: this.connectionManager.cleanupConnection(record, reason)
```
### Test Coverage
- `test/test.rapid-retry-cleanup.node.ts` - Verifies connection cleanup under rapid retry scenarios
- Test shows connection count stays at 0 even with 20 rapid retries with 50ms intervals
- Confirms both ECONNREFUSED and routing failure scenarios are handled correctly
### Performance Impact
- **Positive**: No more connection accumulation under load
- **Positive**: Immediate cleanup reduces memory usage
- **Consideration**: More frequent cleanup operations, but prevents queue backlog
### Migration Notes
No configuration changes needed. The improvements are automatic and backward compatible.
## Early Client Disconnect Handling (v19.5.13+)
### Issue
Connections were accumulating when clients connected but disconnected before sending data or during routing. This occurred in two scenarios:
1. **TLS Path**: Clients connecting and disconnecting before sending initial TLS handshake data
2. **Non-TLS Immediate Routing**: Clients disconnecting while backend connection was being established
### Root Cause
1. **Missing Cleanup Handlers**: During initial data wait and immediate routing, no close/end handlers were attached to catch early disconnections
2. **Race Condition**: Backend connection attempts continued even after client disconnected, causing unhandled errors
3. **Timing Window**: Between accepting connection and establishing full bidirectional flow, disconnections weren't properly handled
### Solution
1. **TLS Path Fix**: Added close/end handlers during initial data wait (lines 224-253 in route-connection-handler.ts)
2. **Immediate Routing Fix**: Used `setupSocketHandlers` for proper handler attachment (lines 180-205)
3. **Backend Error Handling**: Check if connection already closed before handling backend errors (line 1144)
### Changes Made
```typescript
// 1. TLS path - handle disconnect before initial data
socket.once('close', () => {
if (!initialDataReceived) {
this.connectionManager.cleanupConnection(record, 'closed_before_data');
}
});
// 2. Immediate routing path - proper handler setup
setupSocketHandlers(socket, (reason) => {
if (!record.outgoing || record.outgoing.readyState !== 'open') {
if (record.outgoing && !record.outgoing.destroyed) {
record.outgoing.destroy(); // Abort pending backend connection
}
this.connectionManager.cleanupConnection(record, reason);
}
}, undefined, 'immediate-route-client');
// 3. Backend connection error handling
onError: (error) => {
if (record.connectionClosed) {
logger.log('debug', 'Backend connection failed but client already disconnected');
return; // Client already gone, nothing to clean up
}
// ... normal error handling
}
```
### Test Coverage
- `test/test.connect-disconnect-cleanup.node.ts` - Comprehensive test for early disconnect scenarios
- Tests verify connection count stays at 0 even with rapid connect/disconnect patterns
- Covers immediate disconnect, delayed disconnect, and mixed patterns
### Performance Impact
- **Positive**: No more connection accumulation from early disconnects
- **Positive**: Immediate cleanup reduces memory usage
- **Positive**: Prevents resource exhaustion from rapid reconnection attempts
### Migration Notes
No configuration changes needed. The fix is automatic and backward compatible.
## Proxy Chain Connection Accumulation Fix (v19.5.14+)
### Issue
When chaining SmartProxies (Client → SmartProxy1 → SmartProxy2 → Backend), connections would accumulate and never be cleaned up. This was particularly severe when the backend was down or closing connections immediately.
### Root Cause
The half-open connection support was preventing proper cascade cleanup in proxy chains:
1. Backend closes → SmartProxy2's server socket closes
2. SmartProxy2 keeps client socket open (half-open support)
3. SmartProxy1 never gets notified that downstream is closed
4. Connections accumulate at each proxy in the chain
The issue was in `createIndependentSocketHandlers()` which waited for BOTH sockets to close before cleanup.
### Solution
1. **Changed default behavior**: When one socket closes, both close immediately
2. **Made half-open support opt-in**: Only enabled when explicitly requested
3. **Centralized socket handling**: Created `setupBidirectionalForwarding()` for consistent behavior
4. **Applied everywhere**: Updated HttpProxyBridge and route-connection-handler to use centralized handling
### Changes Made
```typescript
// socket-utils.ts - Default behavior now closes both sockets
export function createIndependentSocketHandlers(
clientSocket, serverSocket, onBothClosed,
options: { enableHalfOpen?: boolean } = {} // Half-open is opt-in
) {
// When server closes, immediately close client (unless half-open enabled)
if (!clientClosed && !options.enableHalfOpen) {
clientSocket.destroy();
}
}
// New centralized function for consistent socket pairing
export function setupBidirectionalForwarding(
clientSocket, serverSocket,
handlers: {
onClientData?: (chunk) => void;
onServerData?: (chunk) => void;
onCleanup: (reason) => void;
enableHalfOpen?: boolean; // Default: false
}
)
```
### Test Coverage
- `test/test.proxy-chain-simple.node.ts` - Verifies proxy chains don't accumulate connections
- Tests confirm connections stay at 0 even with backend closing immediately
- Works for any proxy chain configuration (not just localhost)
### Performance Impact
- **Positive**: No more connection accumulation in proxy chains
- **Positive**: Immediate cleanup reduces memory usage
- **Neutral**: Half-open connections still available when needed (opt-in)
### Migration Notes
No configuration changes needed. The fix applies to all proxy chains automatically.
## Socket Cleanup Handler Deprecation (v19.5.15+)
### Issue
The deprecated `createSocketCleanupHandler()` function was still being used in forwarding handlers, despite being marked as deprecated.
### Solution
Updated all forwarding handlers to use the new centralized socket utilities:
1. **Replaced `createSocketCleanupHandler()`** with `setupBidirectionalForwarding()` in:
- `https-terminate-to-https-handler.ts`
- `https-terminate-to-http-handler.ts`
2. **Removed deprecated function** from `socket-utils.ts`
### Benefits
- Consistent socket handling across all handlers
- Proper cleanup in proxy chains (no half-open connections by default)
- Better backpressure handling with the centralized implementation
- Reduced code duplication
### Migration Notes
No user-facing changes. All forwarding handlers now use the same robust socket handling as the main SmartProxy connection handler.
## WrappedSocket Class Evaluation for PROXY Protocol (v19.5.19+)
### Current Socket Handling Architecture
- Sockets are handled directly as `net.Socket` instances throughout the codebase
- Socket augmentation via TypeScript module augmentation for TLS properties
- Metadata tracked separately in `IConnectionRecord` objects
- Socket utilities provide helper functions but don't encapsulate the socket
- Connection records track extensive metadata (IDs, timestamps, byte counters, TLS state, etc.)
### Evaluation: Should We Introduce a WrappedSocket Class?
**Yes, a WrappedSocket class would make sense**, particularly for PROXY protocol implementation and future extensibility.
### Design Considerations for WrappedSocket
```typescript
class WrappedSocket {
private socket: net.Socket;
private connectionId: string;
private metadata: {
realClientIP?: string; // From PROXY protocol
realClientPort?: number; // From PROXY protocol
proxyIP?: string; // Immediate connection IP
proxyPort?: number; // Immediate connection port
bytesReceived: number;
bytesSent: number;
lastActivity: number;
isTLS: boolean;
// ... other metadata
};
// PROXY protocol handling
private proxyProtocolParsed: boolean = false;
private pendingData: Buffer[] = [];
constructor(socket: net.Socket) {
this.socket = socket;
this.setupHandlers();
}
// Getters for clean access
get remoteAddress(): string {
return this.metadata.realClientIP || this.socket.remoteAddress || '';
}
get remotePort(): number {
return this.metadata.realClientPort || this.socket.remotePort || 0;
}
get isFromTrustedProxy(): boolean {
return !!this.metadata.realClientIP;
}
// PROXY protocol parsing
async parseProxyProtocol(trustedProxies: string[]): Promise<boolean> {
// Implementation here
}
// Delegate socket methods
write(data: any): boolean {
this.metadata.bytesSent += Buffer.byteLength(data);
return this.socket.write(data);
}
destroy(error?: Error): void {
this.socket.destroy(error);
}
// Event forwarding
on(event: string, listener: Function): this {
this.socket.on(event, listener);
return this;
}
}
```
### Implementation Benefits
1. **Encapsulation**: Bundle socket + metadata + behavior in one place
2. **PROXY Protocol Integration**: Cleaner handling without modifying existing socket code
3. **State Management**: Centralized socket state tracking and validation
4. **API Consistency**: Uniform interface for all socket operations
5. **Future Extensibility**: Easy to add new socket-level features (compression, encryption, etc.)
6. **Type Safety**: Better TypeScript support without module augmentation
7. **Testing**: Easier to mock and test socket behavior
### Implementation Drawbacks
1. **Major Refactoring**: Would require changes throughout the codebase
2. **Performance Overhead**: Additional abstraction layer (minimal but present)
3. **Compatibility**: Need to maintain event emitter compatibility
4. **Learning Curve**: Developers need to understand the wrapper
### Recommended Approach: Phased Implementation
**Phase 1: PROXY Protocol Only** (Immediate)
- Create minimal `ProxyProtocolSocket` wrapper for new connections from trusted proxies
- Use in connection handler when receiving from trusted proxy IPs
- Minimal disruption to existing code
```typescript
class ProxyProtocolSocket {
constructor(
public socket: net.Socket,
public realClientIP?: string,
public realClientPort?: number
) {}
get remoteAddress(): string {
return this.realClientIP || this.socket.remoteAddress || '';
}
get remotePort(): number {
return this.realClientPort || this.socket.remotePort || 0;
}
}
```
**Phase 2: Gradual Migration** (Future)
- Extend wrapper with more functionality
- Migrate critical paths to use wrapper
- Add performance monitoring
**Phase 3: Full Adoption** (Long-term)
- Complete migration to WrappedSocket
- Remove socket augmentation
- Standardize all socket handling
### Decision Summary
✅ **Implement minimal ProxyProtocolSocket for immediate PROXY protocol support**
- Low risk, high value
- Solves the immediate proxy chain connection limit issue
- Sets foundation for future improvements
- Can be implemented alongside existing code
📋 **Consider full WrappedSocket for future major version**
- Cleaner architecture
- Better maintainability
- But requires significant refactoring
## WrappedSocket Implementation (PROXY Protocol Phase 1) - v19.5.19+
The WrappedSocket class has been implemented as the foundation for PROXY protocol support:
### Implementation Details
1. **Design Approach**: Uses JavaScript Proxy to delegate all Socket methods/properties to the underlying socket while allowing override of specific properties (remoteAddress, remotePort).
2. **Key Design Decisions**:
- NOT a Duplex stream - Initially tried this approach but it created infinite loops
- Simple wrapper using Proxy pattern for transparent delegation
- All sockets are wrapped, not just those from trusted proxies
- Trusted proxy detection happens after wrapping
3. **Usage Pattern**:
```typescript
// In RouteConnectionHandler.handleConnection()
const wrappedSocket = new WrappedSocket(socket);
// Pass wrappedSocket throughout the flow
// When calling socket-utils functions, extract underlying socket:
const underlyingSocket = getUnderlyingSocket(socket);
setupBidirectionalForwarding(underlyingSocket, targetSocket, {...});
```
4. **Important Implementation Notes**:
- Socket utility functions (setupBidirectionalForwarding, cleanupSocket) expect raw net.Socket
- Always extract underlying socket before passing to these utilities using `getUnderlyingSocket()`
- WrappedSocket preserves all Socket functionality through Proxy delegation
- TypeScript typing handled via index signature: `[key: string]: any`
5. **Files Modified**:
- `ts/core/models/wrapped-socket.ts` - The WrappedSocket implementation
- `ts/core/models/socket-types.ts` - Helper functions and type guards
- `ts/proxies/smart-proxy/route-connection-handler.ts` - Updated to wrap all incoming sockets
- `ts/proxies/smart-proxy/connection-manager.ts` - Updated to accept WrappedSocket
- `ts/proxies/smart-proxy/http-proxy-bridge.ts` - Updated to handle WrappedSocket
6. **Test Coverage**:
- `test/test.wrapped-socket-forwarding.ts` - Verifies data forwarding through wrapped sockets
### Next Steps for PROXY Protocol
- Phase 2: Parse PROXY protocol header from trusted proxies
- Phase 3: Update real client IP/port after parsing
- Phase 4: Test with HAProxy and AWS ELB
- Phase 5: Documentation and configuration
## Proxy Protocol Documentation
For detailed information about proxy protocol implementation and proxy chaining:
- **[Proxy Protocol Guide](./readme.proxy-protocol.md)** - Complete implementation details and configuration
- **[Proxy Protocol Examples](./readme.proxy-protocol-example.md)** - Code examples and conceptual implementation
- **[Proxy Chain Summary](./readme.proxy-chain-summary.md)** - Quick reference for proxy chaining setup
## Connection Cleanup Edge Cases Investigation (v19.5.20+)
### Issue Discovered
"Zombie connections" can occur when both sockets are destroyed but the connection record hasn't been cleaned up. This happens when sockets are destroyed without triggering their close/error event handlers.
### Root Cause
1. **Event Handler Bypass**: In edge cases (network failures, proxy chain failures, forced socket destruction), sockets can be destroyed without their event handlers being called
2. **Cleanup Queue Delay**: The `initiateCleanupOnce` method adds connections to a cleanup queue (batch of 100 every 100ms), which may not process fast enough
3. **Inactivity Check Limitation**: The periodic inactivity check only examines `lastActivity` timestamps, not actual socket states
### Test Results
Debug script (`connection-manager-direct-test.ts`) revealed:
- **Normal cleanup works**: When socket events fire normally, cleanup is reliable
- **Zombies ARE created**: Direct socket destruction creates zombies (destroyed sockets, connectionClosed=false)
- **Manual cleanup works**: Calling `initiateCleanupOnce` on a zombie does clean it up
- **Inactivity check misses zombies**: The check doesn't detect connections with destroyed sockets
### Potential Solutions
1. **Periodic Zombie Detection**: Add zombie detection to the inactivity check:
```typescript
// In performOptimizedInactivityCheck
if (record.incoming?.destroyed && record.outgoing?.destroyed && !record.connectionClosed) {
this.cleanupConnection(record, 'zombie_detected');
}
```
2. **Socket State Monitoring**: Check socket states during connection operations
3. **Defensive Socket Handling**: Always attach cleanup handlers before any operation that might destroy sockets
4. **Immediate Cleanup Option**: For critical paths, use `cleanupConnection` instead of `initiateCleanupOnce`
### Impact
- Memory leaks in edge cases (network failures, proxy chain issues)
- Connection count inaccuracy
- Potential resource exhaustion over time
### Test Files
- `.nogit/debug/connection-manager-direct-test.ts` - Direct ConnectionManager testing showing zombie creation

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# SmartProxy Metrics Implementation Plan
This document outlines the plan for implementing comprehensive metrics tracking in SmartProxy.
## Overview
The metrics system will provide real-time insights into proxy performance, connection statistics, and throughput data. The implementation will be efficient, thread-safe, and have minimal impact on proxy performance.
**Key Design Decisions**:
1. **On-demand computation**: Instead of maintaining duplicate state, the MetricsCollector computes metrics on-demand from existing data structures.
2. **SmartProxy-centric architecture**: MetricsCollector receives the SmartProxy instance, providing access to all components:
- ConnectionManager for connection data
- RouteManager for route metadata
- Settings for configuration
- Future components without API changes
This approach:
- Eliminates synchronization issues
- Reduces memory overhead
- Simplifies the implementation
- Guarantees metrics accuracy
- Leverages existing battle-tested components
- Provides flexibility for future enhancements
## Metrics Interface
```typescript
interface IProxyStats {
getActiveConnections(): number;
getConnectionsByRoute(): Map<string, number>;
getConnectionsByIP(): Map<string, number>;
getTotalConnections(): number;
getRequestsPerSecond(): number;
getThroughput(): { bytesIn: number, bytesOut: number };
}
```
## Implementation Plan
### 1. Create MetricsCollector Class
**Location**: `/ts/proxies/smart-proxy/metrics-collector.ts`
```typescript
import type { SmartProxy } from './smart-proxy.js';
export class MetricsCollector implements IProxyStats {
constructor(
private smartProxy: SmartProxy
) {}
// RPS tracking (the only state we need to maintain)
private requestTimestamps: number[] = [];
private readonly RPS_WINDOW_SIZE = 60000; // 1 minute window
// All other metrics are computed on-demand from SmartProxy's components
}
```
### 2. Integration Points
Since metrics are computed on-demand from ConnectionManager's records, we only need minimal integration:
#### A. Request Tracking for RPS
**File**: `/ts/proxies/smart-proxy/route-connection-handler.ts`
```typescript
// In handleNewConnection when a new connection is accepted
this.metricsCollector.recordRequest();
```
#### B. SmartProxy Component Access
Through the SmartProxy instance, MetricsCollector can access:
- `smartProxy.connectionManager` - All active connections and their details
- `smartProxy.routeManager` - Route configurations and metadata
- `smartProxy.settings` - Configuration for thresholds and limits
- `smartProxy.servers` - Server instances and port information
- Any other components as needed for future metrics
No additional hooks needed!
### 3. Metric Implementations
#### A. Active Connections
```typescript
getActiveConnections(): number {
return this.smartProxy.connectionManager.getConnectionCount();
}
```
#### B. Connections by Route
```typescript
getConnectionsByRoute(): Map<string, number> {
const routeCounts = new Map<string, number>();
// Compute from active connections
for (const [_, record] of this.smartProxy.connectionManager.getConnections()) {
const routeName = record.routeName || 'unknown';
const current = routeCounts.get(routeName) || 0;
routeCounts.set(routeName, current + 1);
}
return routeCounts;
}
```
#### C. Connections by IP
```typescript
getConnectionsByIP(): Map<string, number> {
const ipCounts = new Map<string, number>();
// Compute from active connections
for (const [_, record] of this.smartProxy.connectionManager.getConnections()) {
const ip = record.remoteIP;
const current = ipCounts.get(ip) || 0;
ipCounts.set(ip, current + 1);
}
return ipCounts;
}
// Additional helper methods for IP tracking
getTopIPs(limit: number = 10): Array<{ip: string, connections: number}> {
const ipCounts = this.getConnectionsByIP();
const sorted = Array.from(ipCounts.entries())
.sort((a, b) => b[1] - a[1])
.slice(0, limit)
.map(([ip, connections]) => ({ ip, connections }));
return sorted;
}
isIPBlocked(ip: string, maxConnectionsPerIP: number): boolean {
const ipCounts = this.getConnectionsByIP();
const currentConnections = ipCounts.get(ip) || 0;
return currentConnections >= maxConnectionsPerIP;
}
```
#### D. Total Connections
```typescript
getTotalConnections(): number {
// Get from termination stats
const stats = this.smartProxy.connectionManager.getTerminationStats();
let total = this.smartProxy.connectionManager.getConnectionCount(); // Add active connections
// Add all terminated connections
for (const reason in stats.incoming) {
total += stats.incoming[reason];
}
return total;
}
```
#### E. Requests Per Second
```typescript
getRequestsPerSecond(): number {
const now = Date.now();
const windowStart = now - this.RPS_WINDOW_SIZE;
// Clean old timestamps
this.requestTimestamps = this.requestTimestamps.filter(ts => ts > windowStart);
// Calculate RPS based on window
const requestsInWindow = this.requestTimestamps.length;
return requestsInWindow / (this.RPS_WINDOW_SIZE / 1000);
}
recordRequest(): void {
this.requestTimestamps.push(Date.now());
// Prevent unbounded growth
if (this.requestTimestamps.length > 10000) {
this.cleanupOldRequests();
}
}
```
#### F. Throughput Tracking
```typescript
getThroughput(): { bytesIn: number, bytesOut: number } {
let bytesIn = 0;
let bytesOut = 0;
// Sum bytes from all active connections
for (const [_, record] of this.smartProxy.connectionManager.getConnections()) {
bytesIn += record.bytesReceived;
bytesOut += record.bytesSent;
}
return { bytesIn, bytesOut };
}
// Get throughput rate (bytes per second) for last minute
getThroughputRate(): { bytesInPerSec: number, bytesOutPerSec: number } {
const now = Date.now();
let recentBytesIn = 0;
let recentBytesOut = 0;
let connectionCount = 0;
// Calculate bytes transferred in last minute from active connections
for (const [_, record] of this.smartProxy.connectionManager.getConnections()) {
const connectionAge = now - record.incomingStartTime;
if (connectionAge < 60000) { // Connection started within last minute
recentBytesIn += record.bytesReceived;
recentBytesOut += record.bytesSent;
connectionCount++;
} else {
// For older connections, estimate rate based on average
const rate = connectionAge / 60000;
recentBytesIn += record.bytesReceived / rate;
recentBytesOut += record.bytesSent / rate;
connectionCount++;
}
}
return {
bytesInPerSec: Math.round(recentBytesIn / 60),
bytesOutPerSec: Math.round(recentBytesOut / 60)
};
}
```
### 4. Performance Optimizations
Since metrics are computed on-demand from existing data structures, performance optimizations are minimal:
#### A. Caching for Frequent Queries
```typescript
private cachedMetrics: {
timestamp: number;
connectionsByRoute?: Map<string, number>;
connectionsByIP?: Map<string, number>;
} = { timestamp: 0 };
private readonly CACHE_TTL = 1000; // 1 second cache
getConnectionsByRoute(): Map<string, number> {
const now = Date.now();
// Return cached value if fresh
if (this.cachedMetrics.connectionsByRoute &&
now - this.cachedMetrics.timestamp < this.CACHE_TTL) {
return this.cachedMetrics.connectionsByRoute;
}
// Compute fresh value
const routeCounts = new Map<string, number>();
for (const [_, record] of this.smartProxy.connectionManager.getConnections()) {
const routeName = record.routeName || 'unknown';
const current = routeCounts.get(routeName) || 0;
routeCounts.set(routeName, current + 1);
}
// Cache and return
this.cachedMetrics.connectionsByRoute = routeCounts;
this.cachedMetrics.timestamp = now;
return routeCounts;
}
```
#### B. RPS Cleanup
```typescript
// Only cleanup needed is for RPS timestamps
private cleanupOldRequests(): void {
const cutoff = Date.now() - this.RPS_WINDOW_SIZE;
this.requestTimestamps = this.requestTimestamps.filter(ts => ts > cutoff);
}
```
### 5. SmartProxy Integration
#### A. Add to SmartProxy Class
```typescript
export class SmartProxy {
private metricsCollector: MetricsCollector;
constructor(options: ISmartProxyOptions) {
// ... existing code ...
// Pass SmartProxy instance to MetricsCollector
this.metricsCollector = new MetricsCollector(this);
}
// Public API
public getStats(): IProxyStats {
return this.metricsCollector;
}
}
```
#### B. Configuration Options
```typescript
interface ISmartProxyOptions {
// ... existing options ...
metrics?: {
enabled?: boolean; // Default: true
rpsWindowSize?: number; // Default: 60000 (1 minute)
throughputWindowSize?: number; // Default: 60000 (1 minute)
cleanupInterval?: number; // Default: 60000 (1 minute)
};
}
```
### 6. Advanced Metrics (Future Enhancement)
```typescript
interface IAdvancedProxyStats extends IProxyStats {
// Latency metrics
getAverageLatency(): number;
getLatencyPercentiles(): { p50: number, p95: number, p99: number };
// Error metrics
getErrorRate(): number;
getErrorsByType(): Map<string, number>;
// Route-specific metrics
getRouteMetrics(routeName: string): IRouteMetrics;
// Time-series data
getHistoricalMetrics(duration: number): IHistoricalMetrics;
// Server/Port metrics (leveraging SmartProxy access)
getPortUtilization(): Map<number, { connections: number, maxConnections: number }>;
getCertificateExpiry(): Map<string, Date>;
}
// Example implementation showing SmartProxy component access
getPortUtilization(): Map<number, { connections: number, maxConnections: number }> {
const portStats = new Map();
// Access servers through SmartProxy
for (const [port, server] of this.smartProxy.servers) {
const connections = Array.from(this.smartProxy.connectionManager.getConnections())
.filter(([_, record]) => record.localPort === port).length;
// Access route configuration through SmartProxy
const routes = this.smartProxy.routeManager.getRoutesForPort(port);
const maxConnections = routes[0]?.advanced?.maxConnections ||
this.smartProxy.settings.defaults?.security?.maxConnections ||
10000;
portStats.set(port, { connections, maxConnections });
}
return portStats;
}
```
### 7. HTTP Metrics Endpoint (Optional)
```typescript
// Expose metrics via HTTP endpoint
class MetricsHttpHandler {
handleRequest(req: IncomingMessage, res: ServerResponse): void {
if (req.url === '/metrics') {
const stats = this.proxy.getStats();
res.writeHead(200, { 'Content-Type': 'application/json' });
res.end(JSON.stringify({
activeConnections: stats.getActiveConnections(),
totalConnections: stats.getTotalConnections(),
requestsPerSecond: stats.getRequestsPerSecond(),
throughput: stats.getThroughput(),
connectionsByRoute: Object.fromEntries(stats.getConnectionsByRoute()),
connectionsByIP: Object.fromEntries(stats.getConnectionsByIP()),
topIPs: stats.getTopIPs(20)
}));
}
}
}
```
### 8. Testing Strategy
The simplified design makes testing much easier since we can mock the ConnectionManager's data:
#### A. Unit Tests
```typescript
// test/test.metrics-collector.ts
tap.test('MetricsCollector computes metrics correctly', async () => {
// Mock ConnectionManager with test data
const mockConnectionManager = {
getConnectionCount: () => 2,
getConnections: () => new Map([
['conn1', { remoteIP: '192.168.1.1', routeName: 'api', bytesReceived: 1000, bytesSent: 500 }],
['conn2', { remoteIP: '192.168.1.1', routeName: 'web', bytesReceived: 2000, bytesSent: 1000 }]
]),
getTerminationStats: () => ({ incoming: { normal: 10, timeout: 2 } })
};
const collector = new MetricsCollector(mockConnectionManager as any);
expect(collector.getActiveConnections()).toEqual(2);
expect(collector.getConnectionsByIP().get('192.168.1.1')).toEqual(2);
expect(collector.getTotalConnections()).toEqual(14); // 2 active + 12 terminated
});
```
#### B. Integration Tests
```typescript
// test/test.metrics-integration.ts
tap.test('SmartProxy provides accurate metrics', async () => {
const proxy = new SmartProxy({ /* config */ });
await proxy.start();
// Create connections and verify metrics
const stats = proxy.getStats();
expect(stats.getActiveConnections()).toEqual(0);
});
```
#### C. Performance Tests
```typescript
// test/test.metrics-performance.ts
tap.test('Metrics collection has minimal performance impact', async () => {
// Measure proxy performance with and without metrics
// Ensure overhead is < 1%
});
```
### 9. Implementation Phases
#### Phase 1: Core Metrics (Days 1-2)
- [ ] Create MetricsCollector class
- [ ] Implement all metric methods (reading from ConnectionManager)
- [ ] Add RPS tracking
- [ ] Add to SmartProxy with getStats() method
#### Phase 2: Testing & Optimization (Days 3-4)
- [ ] Add comprehensive unit tests with mocked data
- [ ] Add integration tests with real proxy
- [ ] Implement caching for performance
- [ ] Add RPS cleanup mechanism
#### Phase 3: Advanced Features (Days 5-7)
- [ ] Add HTTP metrics endpoint
- [ ] Implement Prometheus export format
- [ ] Add IP-based rate limiting helpers
- [ ] Create monitoring dashboard example
**Note**: The simplified design reduces implementation time from 4 weeks to 1 week!
### 10. Usage Examples
```typescript
// Basic usage
const proxy = new SmartProxy({
routes: [...],
metrics: { enabled: true }
});
await proxy.start();
// Get metrics
const stats = proxy.getStats();
console.log(`Active connections: ${stats.getActiveConnections()}`);
console.log(`RPS: ${stats.getRequestsPerSecond()}`);
console.log(`Throughput: ${JSON.stringify(stats.getThroughput())}`);
// Monitor specific routes
const routeConnections = stats.getConnectionsByRoute();
for (const [route, count] of routeConnections) {
console.log(`Route ${route}: ${count} connections`);
}
// Monitor connections by IP
const ipConnections = stats.getConnectionsByIP();
for (const [ip, count] of ipConnections) {
console.log(`IP ${ip}: ${count} connections`);
}
// Get top IPs by connection count
const topIPs = stats.getTopIPs(10);
console.log('Top 10 IPs:', topIPs);
// Check if IP should be rate limited
if (stats.isIPBlocked('192.168.1.100', 100)) {
console.log('IP has too many connections');
}
```
### 11. Monitoring Integration
```typescript
// Export to monitoring systems
class PrometheusExporter {
export(stats: IProxyStats): string {
return `
# HELP smartproxy_active_connections Current number of active connections
# TYPE smartproxy_active_connections gauge
smartproxy_active_connections ${stats.getActiveConnections()}
# HELP smartproxy_total_connections Total connections since start
# TYPE smartproxy_total_connections counter
smartproxy_total_connections ${stats.getTotalConnections()}
# HELP smartproxy_requests_per_second Current requests per second
# TYPE smartproxy_requests_per_second gauge
smartproxy_requests_per_second ${stats.getRequestsPerSecond()}
`;
}
}
```
### 12. Documentation
- Add metrics section to main README
- Create metrics API documentation
- Add monitoring setup guide
- Provide dashboard configuration examples
## Success Criteria
1. **Performance**: Metrics collection adds < 1% overhead
2. **Accuracy**: All metrics are accurate within 1% margin
3. **Memory**: No memory leaks over 24-hour operation
4. **Thread Safety**: No race conditions under high load
5. **Usability**: Simple, intuitive API for accessing metrics
## Privacy and Security Considerations
### IP Address Tracking
1. **Privacy Compliance**:
- Consider GDPR and other privacy regulations when storing IP addresses
- Implement configurable IP anonymization (e.g., mask last octet)
- Add option to disable IP tracking entirely
2. **Security**:
- Use IP metrics for rate limiting and DDoS protection
- Implement automatic blocking for IPs exceeding connection limits
- Consider integration with IP reputation services
3. **Implementation Options**:
```typescript
interface IMetricsOptions {
trackIPs?: boolean; // Default: true
anonymizeIPs?: boolean; // Default: false
maxConnectionsPerIP?: number; // Default: 100
ipBlockDuration?: number; // Default: 3600000 (1 hour)
}
```
## Future Enhancements
1. **Distributed Metrics**: Aggregate metrics across multiple proxy instances
2. **Historical Storage**: Store metrics in time-series database
3. **Alerting**: Built-in alerting based on metric thresholds
4. **Custom Metrics**: Allow users to define custom metrics
5. **GraphQL API**: Provide GraphQL endpoint for flexible metric queries
6. **IP Analytics**:
- Geographic distribution of connections
- Automatic anomaly detection for IP patterns
- Integration with threat intelligence feeds
## Benefits of the Simplified Design
By using a SmartProxy-centric architecture with on-demand computation:
1. **Zero Synchronization Issues**: Metrics always reflect the true state
2. **Minimal Memory Overhead**: No duplicate data structures
3. **Simpler Implementation**: ~200 lines instead of ~1000 lines
4. **Easier Testing**: Can mock SmartProxy components
5. **Better Performance**: No overhead from state updates
6. **Guaranteed Accuracy**: Single source of truth
7. **Faster Development**: 1 week instead of 4 weeks
8. **Future Flexibility**: Access to all SmartProxy components without API changes
9. **Holistic Metrics**: Can correlate data across components (connections, routes, settings, certificates, etc.)
10. **Clean Architecture**: MetricsCollector is a true SmartProxy component, not an isolated module
This approach leverages the existing, well-tested SmartProxy infrastructure while providing a clean, simple metrics API that can grow with the proxy's capabilities.

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# Production Connection Monitoring
This document explains how to use the ProductionConnectionMonitor to diagnose connection accumulation issues in real-time.
## Quick Start
```typescript
import ProductionConnectionMonitor from './.nogit/debug/production-connection-monitor.js';
// After starting your proxy
const monitor = new ProductionConnectionMonitor(proxy);
monitor.start(5000); // Check every 5 seconds
// The monitor will automatically capture diagnostics when:
// - Connections exceed 50 (default threshold)
// - Sudden spike of 20+ connections occurs
// - You manually call monitor.forceCaptureNow()
```
## What Gets Captured
When accumulation is detected, the monitor saves a JSON file with:
### Connection Details
- Socket states (destroyed, readable, writable, readyState)
- Connection age and activity timestamps
- Data transfer statistics (bytes sent/received)
- Target host and port information
- Keep-alive status
- Event listener counts
### System State
- Memory usage
- Event loop lag
- Connection count trends
- Termination statistics
## Reading Diagnostic Files
Files are saved to `.nogit/connection-diagnostics/` with names like:
```
accumulation_2025-06-07T20-20-43-733Z_force_capture.json
```
### Key Fields to Check
1. **Socket States**
```json
"incomingState": {
"destroyed": false,
"readable": true,
"writable": true,
"readyState": "open"
}
```
- Both destroyed = zombie connection
- One destroyed = half-zombie
- Both alive but old = potential stuck connection
2. **Data Transfer**
```json
"bytesReceived": 36,
"bytesSent": 0,
"timeSinceLastActivity": 60000
```
- No bytes sent back = stuck connection
- High bytes but old = slow backend
- No activity = idle connection
3. **Connection Flags**
```json
"hasReceivedInitialData": false,
"hasKeepAlive": true,
"connectionClosed": false
```
- hasReceivedInitialData=false on non-TLS = immediate routing
- hasKeepAlive=true = extended timeout applies
- connectionClosed=false = still tracked
## Common Patterns
### 1. Hanging Backend Pattern
```json
{
"bytesReceived": 36,
"bytesSent": 0,
"age": 120000,
"targetHost": "backend.example.com",
"incomingState": { "destroyed": false },
"outgoingState": { "destroyed": false }
}
```
**Fix**: The stuck connection detection (60s timeout) should clean these up.
### 2. Zombie Connection Pattern
```json
{
"incomingState": { "destroyed": true },
"outgoingState": { "destroyed": true },
"connectionClosed": false
}
```
**Fix**: The zombie detection should clean these up within 30s.
### 3. Event Listener Leak Pattern
```json
{
"incomingListeners": {
"data": 15,
"error": 20,
"close": 18
}
}
```
**Issue**: Event listeners accumulating, potential memory leak.
### 4. No Outgoing Socket Pattern
```json
{
"outgoingState": { "exists": false },
"connectionClosed": false,
"age": 5000
}
```
**Issue**: Connection setup failed but cleanup didn't trigger.
## Forcing Diagnostic Capture
To capture current state immediately:
```typescript
monitor.forceCaptureNow();
```
This is useful when you notice accumulation starting.
## Automated Analysis
The monitor automatically analyzes patterns and logs:
- Zombie/half-zombie counts
- Stuck connection counts
- Old connection counts
- Memory usage
- Recommendations
## Integration Example
```typescript
// In your proxy startup script
import { SmartProxy } from '@push.rocks/smartproxy';
import ProductionConnectionMonitor from './production-connection-monitor.js';
async function startProxyWithMonitoring() {
const proxy = new SmartProxy({
// your config
});
await proxy.start();
// Start monitoring
const monitor = new ProductionConnectionMonitor(proxy);
monitor.start(5000);
// Optional: Capture on specific events
process.on('SIGUSR1', () => {
console.log('Manual diagnostic capture triggered');
monitor.forceCaptureNow();
});
// Graceful shutdown
process.on('SIGTERM', async () => {
monitor.stop();
await proxy.stop();
process.exit(0);
});
}
```
## Troubleshooting
### Monitor Not Detecting Accumulation
- Check threshold settings (default: 50 connections)
- Reduce check interval for faster detection
- Use forceCaptureNow() to capture current state
### Too Many False Positives
- Increase accumulation threshold
- Increase spike threshold
- Adjust check interval
### Missing Diagnostic Data
- Ensure output directory exists and is writable
- Check disk space
- Verify process has write permissions
## Next Steps
1. Deploy the monitor to production
2. Wait for accumulation to occur
3. Share diagnostic files for analysis
4. Apply targeted fixes based on patterns found
The diagnostic data will reveal the exact state of connections when accumulation occurs, enabling precise fixes for your specific scenario.

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@ -1,316 +1,625 @@
# SmartProxy Development Plan
# PROXY Protocol Implementation Plan
## Implementation Plan: Socket Handler Function Support (Simplified) ✅ COMPLETED
## ⚠️ CRITICAL: Implementation Order
### Overview
Add support for custom socket handler functions with the simplest possible API - just pass a function that receives the socket.
**Phase 1 (ProxyProtocolSocket/WrappedSocket) MUST be completed first!**
The ProxyProtocolSocket class is the foundation that enables all PROXY protocol functionality. No protocol parsing or integration can happen until this wrapper class is fully implemented and tested.
1. **FIRST**: Implement ProxyProtocolSocket (the WrappedSocket)
2. **THEN**: Add PROXY protocol parser
3. **THEN**: Integrate with connection handlers
4. **FINALLY**: Add security and validation
## Overview
Implement PROXY protocol support in SmartProxy to preserve client IP information through proxy chains, solving the connection limit accumulation issue where inner proxies see all connections as coming from the outer proxy's IP.
## Problem Statement
- In proxy chains, the inner proxy sees all connections from the outer proxy's IP
- This causes the inner proxy to hit per-IP connection limits (default: 100)
- Results in connection rejections while outer proxy accumulates connections
## Solution Design
### 1. Core Features
#### 1.1 PROXY Protocol Parsing
- Support PROXY protocol v1 (text format) initially
- Parse incoming PROXY headers to extract:
- Real client IP address
- Real client port
- Proxy IP address
- Proxy port
- Protocol (TCP4/TCP6)
#### 1.2 PROXY Protocol Generation
- Add ability to send PROXY protocol headers when forwarding connections
- Configurable per route or target
#### 1.3 Trusted Proxy IPs
- New `proxyIPs` array in SmartProxy options
- Auto-enable PROXY protocol acceptance for connections from these IPs
- Reject PROXY protocol from untrusted sources (security)
### 2. Configuration Schema
### User Experience Goal
```typescript
const proxy = new SmartProxy({
interface ISmartProxyOptions {
// ... existing options
// List of trusted proxy IPs that can send PROXY protocol
proxyIPs?: string[];
// Global option to accept PROXY protocol (defaults based on proxyIPs)
acceptProxyProtocol?: boolean;
// Global option to send PROXY protocol to all targets
sendProxyProtocol?: boolean;
}
interface IRouteAction {
// ... existing options
// Send PROXY protocol to this specific target
sendProxyProtocol?: boolean;
}
```
### 3. Implementation Steps
#### IMPORTANT: Phase 1 Must Be Completed First
The `ProxyProtocolSocket` (WrappedSocket) is the foundation for all PROXY protocol functionality. This wrapper class must be implemented and integrated BEFORE any PROXY protocol parsing can begin.
#### Phase 1: ProxyProtocolSocket (WrappedSocket) Foundation - ✅ COMPLETED (v19.5.19)
This phase creates the socket wrapper infrastructure that all subsequent phases depend on.
1. **Create WrappedSocket class** in `ts/core/models/wrapped-socket.ts`
- Used JavaScript Proxy pattern instead of EventEmitter (avoids infinite loops)
- Properties for real client IP and port
- Transparent getters that return real or socket IP/port
- All socket methods/properties delegated via Proxy
2. **Implement core wrapper functionality**
- Constructor accepts regular socket + optional metadata
- `remoteAddress` getter returns real IP or falls back to socket IP
- `remotePort` getter returns real port or falls back to socket port
- `isFromTrustedProxy` property to check if it has real client info
- `setProxyInfo()` method to update real client details
3. **Update ConnectionManager to handle wrapped sockets**
- Accept either `net.Socket` or `WrappedSocket`
- Created `getUnderlyingSocket()` helper for socket utilities
- All socket utility functions extract underlying socket
4. **Integration completed**
- All incoming sockets wrapped in RouteConnectionHandler
- Socket forwarding verified working with wrapped sockets
- Type safety maintained with index signature
**Deliverables**: ✅ Working WrappedSocket that can wrap any socket and provide transparent access to client info.
#### Phase 2: PROXY Protocol Parser - ✅ COMPLETED (v19.5.21)
Only after WrappedSocket is working can we add protocol parsing.
1. ✅ Created `ProxyProtocolParser` class in `ts/core/utils/proxy-protocol.ts`
2. ✅ Implemented v1 text format parsing with full validation
3. ✅ Added comprehensive error handling and IP validation
4. ✅ Integrated parser to work WITH WrappedSocket in RouteConnectionHandler
**Deliverables**: ✅ Working PROXY protocol v1 parser that validates headers, extracts client info, and handles both TCP4 and TCP6 protocols.
#### Phase 3: Connection Handler Integration - ✅ COMPLETED (v19.5.21)
1. ✅ Modify `RouteConnectionHandler` to create WrappedSocket for all connections
2. ✅ Check if connection is from trusted proxy IP
3. ✅ If trusted, attempt to parse PROXY protocol header
4. ✅ Update wrapped socket with real client info
5. ✅ Continue normal connection handling with wrapped socket
**Deliverables**: ✅ RouteConnectionHandler now parses PROXY protocol from trusted proxies and updates connection records with real client info.
#### Phase 4: Outbound PROXY Protocol - ✅ COMPLETED (v19.5.21)
1. ✅ Add PROXY header generation in `setupDirectConnection`
2. ✅ Make it configurable per route via `sendProxyProtocol` option
3. ✅ Send header immediately after TCP connection
4. ✅ Added remotePort tracking to connection records
**Deliverables**: ✅ SmartProxy can now send PROXY protocol headers to backend servers when configured, preserving client IP through proxy chains.
#### Phase 5: Security & Validation - FINAL PHASE
1. Validate PROXY headers strictly
2. Reject malformed headers
3. Only accept from trusted IPs
4. Add rate limiting for PROXY protocol parsing
### 4. Design Decision: Socket Wrapper Architecture
#### Option A: Minimal Single Socket Wrapper
- **Scope**: Wraps individual sockets with metadata
- **Use Case**: PROXY protocol support with minimal refactoring
- **Pros**: Simple, low risk, easy migration
- **Cons**: Still need separate connection management
#### Option B: Comprehensive Connection Wrapper
- **Scope**: Manages socket pairs (incoming + outgoing) with all utilities
- **Use Case**: Complete connection lifecycle management
- **Pros**:
- Encapsulates all socket utilities (forwarding, cleanup, backpressure)
- Single object represents entire connection
- Cleaner API for connection handling
- **Cons**:
- Major architectural change
- Higher implementation risk
- More complex migration
#### Recommendation
Start with **Option A** (ProxyProtocolSocket) for immediate PROXY protocol support, then evaluate Option B based on:
- Performance impact of additional abstraction
- Code simplification benefits
- Team comfort with architectural change
### 5. Code Implementation Details
#### 5.1 ProxyProtocolSocket (WrappedSocket) - PHASE 1 IMPLEMENTATION
This is the foundational wrapper class that MUST be implemented first. It wraps a regular socket and provides transparent access to the real client IP/port.
```typescript
// ts/core/models/proxy-protocol-socket.ts
import { EventEmitter } from 'events';
import * as plugins from '../../../plugins.js';
/**
* ProxyProtocolSocket wraps a regular net.Socket to provide transparent access
* to the real client IP and port when behind a proxy using PROXY protocol.
*
* This is the FOUNDATION for all PROXY protocol support and must be implemented
* before any protocol parsing can occur.
*/
export class ProxyProtocolSocket extends EventEmitter {
private realClientIP?: string;
private realClientPort?: number;
constructor(
public readonly socket: plugins.net.Socket,
realClientIP?: string,
realClientPort?: number
) {
super();
this.realClientIP = realClientIP;
this.realClientPort = realClientPort;
// Forward all socket events
this.forwardSocketEvents();
}
/**
* Returns the real client IP if available, otherwise the socket's remote address
*/
get remoteAddress(): string | undefined {
return this.realClientIP || this.socket.remoteAddress;
}
/**
* Returns the real client port if available, otherwise the socket's remote port
*/
get remotePort(): number | undefined {
return this.realClientPort || this.socket.remotePort;
}
/**
* Indicates if this connection came through a trusted proxy
*/
get isFromTrustedProxy(): boolean {
return !!this.realClientIP;
}
/**
* Updates the real client information (called after parsing PROXY protocol)
*/
setProxyInfo(ip: string, port: number): void {
this.realClientIP = ip;
this.realClientPort = port;
}
// Pass-through all socket methods
write(data: any, encoding?: any, callback?: any): boolean {
return this.socket.write(data, encoding, callback);
}
end(data?: any, encoding?: any, callback?: any): this {
this.socket.end(data, encoding, callback);
return this;
}
destroy(error?: Error): this {
this.socket.destroy(error);
return this;
}
// ... implement all other socket methods as pass-through
/**
* Forward all events from the underlying socket
*/
private forwardSocketEvents(): void {
const events = ['data', 'end', 'close', 'error', 'drain', 'timeout'];
events.forEach(event => {
this.socket.on(event, (...args) => {
this.emit(event, ...args);
});
});
}
}
```
**KEY POINT**: This wrapper must be fully functional and tested BEFORE moving to Phase 2.
#### 4.2 ProxyProtocolParser (new file)
```typescript
// ts/core/utils/proxy-protocol.ts
export class ProxyProtocolParser {
static readonly PROXY_V1_SIGNATURE = 'PROXY ';
static parse(chunk: Buffer): IProxyInfo | null {
// Implementation
}
static generate(info: IProxyInfo): Buffer {
// Implementation
}
}
```
#### 4.3 Connection Handler Updates
```typescript
// In handleConnection method
let wrappedSocket: ProxyProtocolSocket | plugins.net.Socket = socket;
// Wrap socket if from trusted proxy
if (this.settings.proxyIPs?.includes(socket.remoteAddress)) {
wrappedSocket = new ProxyProtocolSocket(socket);
}
// Create connection record with wrapped socket
const record = this.connectionManager.createConnection(wrappedSocket);
// In handleInitialData method
if (wrappedSocket instanceof ProxyProtocolSocket) {
const proxyInfo = await this.checkForProxyProtocol(chunk);
if (proxyInfo) {
wrappedSocket.setProxyInfo(proxyInfo.sourceIP, proxyInfo.sourcePort);
// Continue with remaining data after PROXY header
}
}
```
#### 4.4 Security Manager Updates
- Accept socket or ProxyProtocolSocket
- Use `socket.remoteAddress` getter for real client IP
- Transparent handling of both socket types
### 5. Configuration Examples
#### Basic Setup (IMPLEMENTED ✅)
```typescript
// Outer proxy - sends PROXY protocol
const outerProxy = new SmartProxy({
routes: [{
name: 'my-custom-protocol',
match: { ports: 9000, domains: 'custom.example.com' },
name: 'to-inner-proxy',
match: { ports: 443 },
action: {
type: 'socket-handler',
socketHandler: (socket) => {
// User has full control of the socket
socket.write('Welcome!\n');
socket.on('data', (data) => {
socket.write(`Echo: ${data}`);
});
}
type: 'forward',
target: { host: '195.201.98.232', port: 443 },
sendProxyProtocol: true // Enable for this route
}
}]
});
// Inner proxy - accepts PROXY protocol from outer proxy
const innerProxy = new SmartProxy({
proxyIPs: ['212.95.99.130'], // Outer proxy IP
acceptProxyProtocol: true, // Optional - defaults to true when proxyIPs is set
routes: [{
name: 'to-backend',
match: { ports: 443 },
action: {
type: 'forward',
target: { host: '192.168.5.247', port: 443 }
}
}]
});
```
That's it. Simple and powerful.
### 6. Testing Plan
---
#### Unit Tests
- PROXY protocol v1 parsing (valid/invalid formats)
- Header generation
- Trusted IP validation
- Connection record updates
## Phase 1: Minimal Type Changes
#### Integration Tests
- Single proxy with PROXY protocol
- Proxy chain with PROXY protocol
- Security: reject from untrusted IPs
- Performance: minimal overhead
- Compatibility: works with TLS passthrough
### 1.1 Add Socket Handler Action Type
**File:** `ts/proxies/smart-proxy/models/route-types.ts`
#### Test Scenarios
1. **Connection limit test**: Verify inner proxy sees real client IPs
2. **Security test**: Ensure PROXY protocol rejected from untrusted sources
3. **Compatibility test**: Verify no impact on non-PROXY connections
4. **Performance test**: Measure overhead of PROXY protocol parsing
### 7. Security Considerations
1. **IP Spoofing Prevention**
- Only accept PROXY protocol from explicitly trusted IPs
- Validate all header fields
- Reject malformed headers immediately
2. **Resource Protection**
- Limit PROXY header size (107 bytes for v1)
- Timeout for incomplete headers
- Rate limit connection attempts
3. **Logging**
- Log all PROXY protocol acceptance/rejection
- Include real client IP in all connection logs
### 8. Rollout Strategy
1. **Phase 1**: Deploy parser and acceptance (backward compatible)
2. **Phase 2**: Enable between controlled proxy pairs
3. **Phase 3**: Monitor for issues and performance impact
4. **Phase 4**: Expand to all proxy chains
### 9. Success Metrics
- Inner proxy connection distribution matches outer proxy
- No more connection limit rejections in proxy chains
- Accurate client IP logging throughout the chain
- No performance degradation (<1ms added latency)
### 10. Future Enhancements
- PROXY protocol v2 (binary format) support
- TLV extensions for additional metadata
- AWS VPC endpoint ID support
- Custom metadata fields
## WrappedSocket Class Design
### Overview
A WrappedSocket class has been evaluated and recommended to provide cleaner PROXY protocol integration and better socket management architecture.
### Rationale for WrappedSocket
#### Current Challenges
- Sockets handled directly as `net.Socket` instances throughout codebase
- Metadata tracked separately in `IConnectionRecord` objects
- Socket augmentation via TypeScript module augmentation for TLS properties
- PROXY protocol would require modifying socket handling in multiple places
#### Benefits
1. **Clean PROXY Protocol Integration** - Parse and store real client IP/port without modifying existing socket handling
2. **Better Encapsulation** - Bundle socket + metadata + behavior together
3. **Type Safety** - No more module augmentation needed
4. **Future Extensibility** - Easy to add compression, metrics, etc.
5. **Simplified Testing** - Easier to mock and test socket behavior
### Implementation Strategy
#### Phase 1: Minimal ProxyProtocolSocket (Immediate)
Create a minimal wrapper for PROXY protocol support:
```typescript
// Update action type
export type TRouteActionType = 'forward' | 'redirect' | 'block' | 'static' | 'socket-handler';
// Add simple socket handler type
export type TSocketHandler = (socket: net.Socket) => void | Promise<void>;
// Extend IRouteAction
export interface IRouteAction {
// ... existing properties
class ProxyProtocolSocket {
constructor(
public socket: net.Socket,
public realClientIP?: string,
public realClientPort?: number
) {}
// Socket handler function (when type is 'socket-handler')
socketHandler?: TSocketHandler;
get remoteAddress(): string {
return this.realClientIP || this.socket.remoteAddress || '';
}
get remotePort(): number {
return this.realClientPort || this.socket.remotePort || 0;
}
get isFromTrustedProxy(): boolean {
return !!this.realClientIP;
}
}
```
---
Integration points:
- Use in `RouteConnectionHandler` when receiving from trusted proxy IPs
- Update `ConnectionManager` to accept wrapped sockets
- Modify security checks to use `socket.remoteAddress` getter
## Phase 2: Simple Implementation
### 2.1 Update Route Connection Handler
**File:** `ts/proxies/smart-proxy/route-connection-handler.ts`
In the `handleConnection` method, add handling for socket-handler:
#### Phase 2: Connection-Aware WrappedSocket (Alternative Design)
A more comprehensive design that manages both sides of a connection:
```typescript
// After route matching...
if (matchedRoute) {
const action = matchedRoute.action;
// Option A: Single Socket Wrapper (simpler)
class WrappedSocket extends EventEmitter {
private socket: net.Socket;
private connectionId: string;
private metadata: ISocketMetadata;
if (action.type === 'socket-handler') {
if (!action.socketHandler) {
logger.error('socket-handler action missing socketHandler function');
socket.destroy();
return;
}
constructor(socket: net.Socket, metadata?: Partial<ISocketMetadata>) {
super();
this.socket = socket;
this.connectionId = this.generateId();
this.metadata = { ...defaultMetadata, ...metadata };
this.setupHandlers();
}
// ... single socket management
}
// Option B: Connection Pair Wrapper (comprehensive)
class WrappedConnection extends EventEmitter {
private connectionId: string;
private incoming: WrappedSocket;
private outgoing?: WrappedSocket;
private forwardingActive: boolean = false;
constructor(incomingSocket: net.Socket) {
super();
this.connectionId = this.generateId();
this.incoming = new WrappedSocket(incomingSocket);
}
// Connect to backend and set up forwarding
async connectToBackend(target: ITarget): Promise<void> {
const outgoingSocket = await this.createOutgoingConnection(target);
this.outgoing = new WrappedSocket(outgoingSocket);
await this.setupBidirectionalForwarding();
}
// Built-in forwarding logic from socket-utils
private async setupBidirectionalForwarding(): Promise<void> {
if (!this.outgoing) throw new Error('No outgoing socket');
try {
// Simply call the handler with the socket
const result = action.socketHandler(socket);
// If it returns a promise, handle errors
if (result instanceof Promise) {
result.catch(error => {
logger.error('Socket handler error:', error);
if (!socket.destroyed) {
socket.destroy();
}
});
}
} catch (error) {
logger.error('Socket handler error:', error);
if (!socket.destroyed) {
socket.destroy();
}
}
return; // Done - user has control now
}
// ... rest of existing action handling
}
```
---
## Phase 3: Optional Context (If Needed)
If users need more info, we can optionally pass a minimal context as a second parameter:
```typescript
export type TSocketHandler = (
socket: net.Socket,
context?: {
route: IRouteConfig;
clientIp: string;
localPort: number;
}
) => void | Promise<void>;
```
Usage:
```typescript
socketHandler: (socket, context) => {
console.log(`Connection from ${context.clientIp} to port ${context.localPort}`);
// Handle socket...
}
```
---
## Phase 4: Helper Utilities (Optional)
### 4.1 Common Patterns
**File:** `ts/proxies/smart-proxy/utils/route-helpers.ts`
```typescript
// Simple helper to create socket handler routes
export function createSocketHandlerRoute(
domains: string | string[],
ports: TPortRange,
handler: TSocketHandler,
options?: { name?: string; priority?: number }
): IRouteConfig {
return {
name: options?.name || 'socket-handler-route',
priority: options?.priority || 50,
match: { domains, ports },
action: {
type: 'socket-handler',
socketHandler: handler
}
};
}
// Pre-built handlers for common cases
export const SocketHandlers = {
// Simple echo server
echo: (socket: net.Socket) => {
socket.on('data', data => socket.write(data));
},
// TCP proxy
proxy: (targetHost: string, targetPort: number) => (socket: net.Socket) => {
const target = net.connect(targetPort, targetHost);
socket.pipe(target);
target.pipe(socket);
socket.on('close', () => target.destroy());
target.on('close', () => socket.destroy());
},
// Line-based protocol
lineProtocol: (handler: (line: string, socket: net.Socket) => void) => (socket: net.Socket) => {
let buffer = '';
socket.on('data', (data) => {
buffer += data.toString();
const lines = buffer.split('\n');
buffer = lines.pop() || '';
lines.forEach(line => handler(line, socket));
});
}
};
```
---
## Usage Examples
### Example 1: Custom Protocol
```typescript
{
name: 'custom-protocol',
match: { ports: 9000 },
action: {
type: 'socket-handler',
socketHandler: (socket) => {
socket.write('READY\n');
socket.on('data', (data) => {
const cmd = data.toString().trim();
if (cmd === 'PING') socket.write('PONG\n');
else if (cmd === 'QUIT') socket.end();
else socket.write('ERROR: Unknown command\n');
// Handle data forwarding with backpressure
this.incoming.on('data', (chunk) => {
this.outgoing!.write(chunk, () => {
// Handle backpressure
});
}
});
this.outgoing.on('data', (chunk) => {
this.incoming.write(chunk, () => {
// Handle backpressure
});
});
// Handle connection lifecycle
const cleanup = (reason: string) => {
this.forwardingActive = false;
this.incoming.destroy();
this.outgoing?.destroy();
this.emit('closed', reason);
};
this.incoming.once('close', () => cleanup('incoming_closed'));
this.outgoing.once('close', () => cleanup('outgoing_closed'));
this.forwardingActive = true;
}
}
```
### Example 2: Simple TCP Proxy
```typescript
{
name: 'tcp-proxy',
match: { ports: 8080, domains: 'proxy.example.com' },
action: {
type: 'socket-handler',
socketHandler: SocketHandlers.proxy('backend.local', 3000)
}
}
```
### Example 3: WebSocket with Custom Auth
```typescript
{
name: 'custom-websocket',
match: { ports: [80, 443], path: '/ws' },
action: {
type: 'socket-handler',
socketHandler: async (socket) => {
// Read HTTP headers
const headers = await readHttpHeaders(socket);
// Custom auth check
if (!headers.authorization || !validateToken(headers.authorization)) {
socket.write('HTTP/1.1 401 Unauthorized\r\n\r\n');
socket.end();
return;
// PROXY protocol support
async handleProxyProtocol(trustedProxies: string[]): Promise<boolean> {
if (trustedProxies.includes(this.incoming.socket.remoteAddress)) {
const parsed = await this.incoming.parseProxyProtocol();
if (parsed && this.outgoing) {
// Forward PROXY protocol to backend if configured
await this.outgoing.sendProxyProtocol(this.incoming.realClientIP);
}
// Proceed with WebSocket upgrade
const ws = new WebSocket(socket, headers);
// ... handle WebSocket
return parsed;
}
return false;
}
// Consolidated metrics
getMetrics(): IConnectionMetrics {
return {
connectionId: this.connectionId,
duration: Date.now() - this.startTime,
incoming: this.incoming.getMetrics(),
outgoing: this.outgoing?.getMetrics(),
totalBytes: this.getTotalBytes(),
state: this.getConnectionState()
};
}
}
```
---
#### Phase 3: Full Migration (Long-term)
- Replace all `net.Socket` usage with `WrappedSocket`
- Remove socket augmentation from `socket-augmentation.ts`
- Update all socket utilities to work with wrapped sockets
- Standardize socket handling across all components
## Benefits of This Approach
### Integration with PROXY Protocol
1. **Dead Simple API**: Just pass a function that gets the socket
2. **No New Classes**: No ForwardingHandler subclass needed
3. **Minimal Changes**: Only touches type definitions and one handler method
4. **Full Power**: Users have complete control over the socket
5. **Backward Compatible**: No changes to existing functionality
6. **Easy to Test**: Just test the socket handler functions directly
The WrappedSocket class integrates seamlessly with PROXY protocol:
---
1. **Connection Acceptance**:
```typescript
const wrappedSocket = new ProxyProtocolSocket(socket);
if (this.isFromTrustedProxy(socket.remoteAddress)) {
await wrappedSocket.parseProxyProtocol(this.settings.proxyIPs);
}
```
## Implementation Steps
2. **Security Checks**:
```typescript
// Automatically uses real client IP if available
const clientIP = wrappedSocket.remoteAddress;
if (!this.securityManager.isIPAllowed(clientIP)) {
wrappedSocket.destroy();
}
```
1. Add `'socket-handler'` to `TRouteActionType` (5 minutes)
2. Add `socketHandler?: TSocketHandler` to `IRouteAction` (5 minutes)
3. Add socket-handler case in `RouteConnectionHandler.handleConnection()` (15 minutes)
4. Add helper functions (optional, 30 minutes)
5. Write tests (2 hours)
6. Update documentation (1 hour)
3. **Connection Records**:
```typescript
const record = this.connectionManager.createConnection(wrappedSocket);
// ConnectionManager uses wrappedSocket.remoteAddress transparently
```
**Total implementation time: ~4 hours** (vs 6 weeks for the complex version)
### Option B Example: How It Would Replace Current Architecture
---
Instead of current approach with separate components:
```typescript
// Current: Multiple separate components
const record = connectionManager.createConnection(socket);
const { cleanupClient, cleanupServer } = createIndependentSocketHandlers(
clientSocket, serverSocket, onBothClosed
);
setupBidirectionalForwarding(clientSocket, serverSocket, handlers);
```
## What We're NOT Doing
Option B would consolidate everything:
```typescript
// Option B: Single connection object
const connection = new WrappedConnection(incomingSocket);
await connection.handleProxyProtocol(trustedProxies);
await connection.connectToBackend({ host: 'server', port: 443 });
// Everything is handled internally - forwarding, cleanup, metrics
- ❌ Creating new ForwardingHandler classes
- ❌ Complex context objects with utils
- ❌ HTTP request handling for socket handlers
- ❌ Complex protocol detection mechanisms
- ❌ Middleware patterns
- ❌ Lifecycle hooks
connection.on('closed', (reason) => {
logger.log('Connection closed', connection.getMetrics());
});
```
Keep it simple. The user just wants to handle a socket.
This would replace:
- `IConnectionRecord` - absorbed into WrappedConnection
- `socket-utils.ts` functions - methods on WrappedConnection
- Separate incoming/outgoing tracking - unified in one object
- Manual cleanup coordination - automatic lifecycle management
---
Additional benefits with Option B:
- **Connection Pooling Integration**: WrappedConnection could integrate with EnhancedConnectionPool for backend connections
- **Unified Metrics**: Single point for all connection statistics
- **Protocol Negotiation**: Handle PROXY, TLS, HTTP/2 upgrade in one place
- **Resource Management**: Automatic cleanup with LifecycleComponent pattern
## Success Criteria
### Migration Path
- ✅ Users can define a route with `type: 'socket-handler'`
- ✅ Users can provide a function that receives the socket
- ✅ The function is called when a connection matches the route
- ✅ Error handling prevents crashes
- ✅ No performance impact on existing routes
- ✅ Clean, simple API that's easy to understand
1. **Week 1-2**: Implement minimal ProxyProtocolSocket (Option A)
2. **Week 3-4**: Test with PROXY protocol implementation
3. **Month 2**: Prototype WrappedConnection (Option B) if beneficial
4. **Month 3-6**: Gradual migration if Option B proves valuable
5. **Future**: Complete adoption in next major version
---
### Success Criteria
## Implementation Notes (Completed)
### What Was Implemented
1. **Type Definitions** - Added 'socket-handler' to TRouteActionType and TSocketHandler type
2. **Route Handler** - Added socket-handler case in RouteConnectionHandler switch statement
3. **Error Handling** - Both sync and async errors are caught and logged
4. **Initial Data Handling** - Initial chunks are re-emitted to handler's listeners
5. **Helper Functions** - Added createSocketHandlerRoute and pre-built handlers (echo, proxy, etc.)
6. **Full Test Coverage** - All test cases pass including async handlers and error handling
### Key Implementation Details
- Socket handlers require initial data from client to trigger routing (not TLS handshake)
- The handler receives the raw socket after route matching
- Both sync and async handlers are supported
- Errors in handlers terminate the connection gracefully
- Helper utilities provide common patterns (echo server, TCP proxy, line protocol)
### Usage Notes
- Clients must send initial data to trigger the handler (even just a newline)
- The socket is passed directly to the handler function
- Handler has complete control over the socket lifecycle
- No special context object needed - keeps it simple
**Total implementation time: ~3 hours**
- PROXY protocol works transparently with wrapped sockets
- No performance regression (<0.1% overhead)
- Simplified code in connection handlers
- Better TypeScript type safety
- Easier to add new socket-level features

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@ -1,764 +0,0 @@
# SmartProxy Simplification Plan: Unify Action Types
## Summary
Complete removal of 'redirect', 'block', and 'static' action types, leaving only 'forward' and 'socket-handler'. All old code will be deleted entirely - no migration paths or backwards compatibility. Socket handlers will be enhanced to receive IRouteContext as a second parameter.
## Goal
Create a dramatically simpler SmartProxy with only two action types, where everything is either proxied (forward) or handled by custom code (socket-handler).
## Current State
```typescript
export type TRouteActionType = 'forward' | 'redirect' | 'block' | 'static' | 'socket-handler';
export type TSocketHandler = (socket: plugins.net.Socket) => void | Promise<void>;
```
## Target State
```typescript
export type TRouteActionType = 'forward' | 'socket-handler';
export type TSocketHandler = (socket: plugins.net.Socket, context: IRouteContext) => void | Promise<void>;
```
## Benefits
1. **Simpler API** - Only two action types to understand
2. **Unified handling** - Everything is either forwarding or custom socket handling
3. **More flexible** - Socket handlers can do anything the old types did and more
4. **Less code** - Remove specialized handlers and their dependencies
5. **Context aware** - Socket handlers get access to route context (domain, port, clientIp, etc.)
6. **Clean codebase** - No legacy code or migration paths
---
## Phase 1: Code to Remove
### 1.1 Action Type Handlers
- `RouteConnectionHandler.handleRedirectAction()`
- `RouteConnectionHandler.handleBlockAction()`
- `RouteConnectionHandler.handleStaticAction()`
### 1.2 Handler Classes
- `RedirectHandler` class (http-proxy/handlers/)
- `StaticHandler` class (http-proxy/handlers/)
### 1.3 Type Definitions
- 'redirect', 'block', 'static' from TRouteActionType
- IRouteRedirect interface
- IRouteStatic interface
- Related properties in IRouteAction
### 1.4 Helper Functions
- `createStaticFileRoute()`
- Any other helpers that create redirect/block/static routes
---
## Phase 2: Create Predefined Socket Handlers
### 2.1 Block Handler
```typescript
export const SocketHandlers = {
// ... existing handlers
/**
* Block connection immediately
*/
block: (message?: string) => (socket: plugins.net.Socket, context: IRouteContext) => {
// Can use context for logging or custom messages
const finalMessage = message || `Connection blocked from ${context.clientIp}`;
if (finalMessage) {
socket.write(finalMessage);
}
socket.end();
},
/**
* HTTP block response
*/
httpBlock: (statusCode: number = 403, message?: string) => (socket: plugins.net.Socket, context: IRouteContext) => {
// Can customize message based on context
const defaultMessage = `Access forbidden for ${context.domain || context.clientIp}`;
const finalMessage = message || defaultMessage;
const response = [
`HTTP/1.1 ${statusCode} ${finalMessage}`,
'Content-Type: text/plain',
`Content-Length: ${finalMessage.length}`,
'Connection: close',
'',
finalMessage
].join('\r\n');
socket.write(response);
socket.end();
}
};
```
### 2.2 Redirect Handler
```typescript
export const SocketHandlers = {
// ... existing handlers
/**
* HTTP redirect handler
*/
httpRedirect: (locationTemplate: string, statusCode: number = 301) => (socket: plugins.net.Socket, context: IRouteContext) => {
let buffer = '';
socket.once('data', (data) => {
buffer += data.toString();
// Parse HTTP request
const lines = buffer.split('\r\n');
const requestLine = lines[0];
const [method, path] = requestLine.split(' ');
// Use domain from context (more reliable than Host header)
const domain = context.domain || 'localhost';
const port = context.port;
// Replace placeholders in location using context
let finalLocation = locationTemplate
.replace('{domain}', domain)
.replace('{port}', String(port))
.replace('{path}', path)
.replace('{clientIp}', context.clientIp);
const message = `Redirecting to ${finalLocation}`;
const response = [
`HTTP/1.1 ${statusCode} ${statusCode === 301 ? 'Moved Permanently' : 'Found'}`,
`Location: ${finalLocation}`,
'Content-Type: text/plain',
`Content-Length: ${message.length}`,
'Connection: close',
'',
message
].join('\r\n');
socket.write(response);
socket.end();
});
}
};
```
### 2.3 Benefits of Context in Socket Handlers
With routeContext as a second parameter, socket handlers can:
- Access client IP for logging or rate limiting
- Use domain information for multi-tenant handling
- Check if connection is TLS and what version
- Access route name/ID for metrics
- Build more intelligent responses based on context
Example advanced handler:
```typescript
const rateLimitHandler = (maxRequests: number) => {
const ipCounts = new Map<string, number>();
return (socket: net.Socket, context: IRouteContext) => {
const count = (ipCounts.get(context.clientIp) || 0) + 1;
ipCounts.set(context.clientIp, count);
if (count > maxRequests) {
socket.write(`Rate limit exceeded for ${context.clientIp}\n`);
socket.end();
return;
}
// Process request...
};
};
```
---
## Phase 3: Update Helper Functions
### 3.1 Update createHttpToHttpsRedirect
```typescript
export function createHttpToHttpsRedirect(
domains: string | string[],
httpsPort: number = 443,
options: Partial<IRouteConfig> = {}
): IRouteConfig {
return {
name: options.name || `HTTP to HTTPS Redirect for ${Array.isArray(domains) ? domains.join(', ') : domains}`,
match: {
ports: options.match?.ports || 80,
domains
},
action: {
type: 'socket-handler',
socketHandler: SocketHandlers.httpRedirect(`https://{domain}:${httpsPort}{path}`, 301)
},
...options
};
}
```
### 3.2 Update createSocketHandlerRoute
```typescript
export function createSocketHandlerRoute(
domains: string | string[],
ports: TPortRange,
handler: TSocketHandler,
options: { name?: string; priority?: number; path?: string } = {}
): IRouteConfig {
return {
name: options.name || 'socket-handler-route',
priority: options.priority !== undefined ? options.priority : 50,
match: {
domains,
ports,
...(options.path && { path: options.path })
},
action: {
type: 'socket-handler',
socketHandler: handler
}
};
}
```
---
## Phase 4: Core Implementation Changes
### 4.1 Update Route Connection Handler
```typescript
// Remove these methods:
// - handleRedirectAction()
// - handleBlockAction()
// - handleStaticAction()
// Update switch statement to only have:
switch (route.action.type) {
case 'forward':
return this.handleForwardAction(socket, record, route, initialChunk);
case 'socket-handler':
this.handleSocketHandlerAction(socket, record, route, initialChunk);
return;
default:
logger.log('error', `Unknown action type '${(route.action as any).type}'`);
socket.end();
this.connectionManager.cleanupConnection(record, 'unknown_action');
}
```
### 4.2 Update Socket Handler to Pass Context
```typescript
private async handleSocketHandlerAction(
socket: plugins.net.Socket,
record: IConnectionRecord,
route: IRouteConfig,
initialChunk?: Buffer
): Promise<void> {
const connectionId = record.id;
// Create route context for the handler
const routeContext = this.createRouteContext({
connectionId: record.id,
port: record.localPort,
domain: record.lockedDomain,
clientIp: record.remoteIP,
serverIp: socket.localAddress || '',
isTls: record.isTLS || false,
tlsVersion: record.tlsVersion,
routeName: route.name,
routeId: route.id,
});
try {
// Call the handler with socket AND context
const result = route.action.socketHandler(socket, routeContext);
// Rest of implementation stays the same...
} catch (error) {
// Error handling...
}
}
```
### 4.3 Clean Up Imports and Exports
- Remove imports of deleted handler classes
- Update index.ts files to remove exports
- Clean up any unused imports
---
## Phase 5: Test Updates
### 5.1 Remove Old Tests
- Delete tests for redirect action type
- Delete tests for block action type
- Delete tests for static action type
### 5.2 Add New Socket Handler Tests
- Test block socket handler with context
- Test HTTP redirect socket handler with context
- Test that context is properly passed to all handlers
---
## Phase 6: Documentation Updates
### 6.1 Update README.md
- Remove documentation for redirect, block, static action types
- Document the two remaining action types: forward and socket-handler
- Add examples using socket handlers with context
### 6.2 Update Type Documentation
```typescript
/**
* Route action types
* - 'forward': Proxy the connection to a target host:port
* - 'socket-handler': Pass the socket to a custom handler function
*/
export type TRouteActionType = 'forward' | 'socket-handler';
/**
* Socket handler function
* @param socket - The incoming socket connection
* @param context - Route context with connection information
*/
export type TSocketHandler = (socket: net.Socket, context: IRouteContext) => void | Promise<void>;
```
### 6.3 Example Documentation
```typescript
// Example: Block connections from specific IPs
const ipBlocker = (socket: net.Socket, context: IRouteContext) => {
if (context.clientIp.startsWith('192.168.')) {
socket.write('Internal IPs not allowed\n');
socket.end();
return;
}
// Forward to backend...
};
// Example: Domain-based routing
const domainRouter = (socket: net.Socket, context: IRouteContext) => {
const backend = context.domain === 'api.example.com' ? 'api-server' : 'web-server';
// Forward to appropriate backend...
};
```
---
## Implementation Steps
1. **Update TSocketHandler type** (15 minutes)
- Add IRouteContext as second parameter
- Update type definition in route-types.ts
2. **Update socket handler implementation** (30 minutes)
- Create routeContext in handleSocketHandlerAction
- Pass context to socket handler function
- Update all existing socket handlers in route-helpers.ts
3. **Remove old action types** (30 minutes)
- Remove 'redirect', 'block', 'static' from TRouteActionType
- Remove IRouteRedirect, IRouteStatic interfaces
- Clean up IRouteAction interface
4. **Delete old handlers** (45 minutes)
- Delete handleRedirectAction, handleBlockAction, handleStaticAction methods
- Delete RedirectHandler and StaticHandler classes
- Remove imports and exports
5. **Update route connection handler** (30 minutes)
- Simplify switch statement to only handle 'forward' and 'socket-handler'
- Remove all references to deleted action types
6. **Create new socket handlers** (30 minutes)
- Implement SocketHandlers.block() with context
- Implement SocketHandlers.httpBlock() with context
- Implement SocketHandlers.httpRedirect() with context
7. **Update helper functions** (30 minutes)
- Update createHttpToHttpsRedirect to use socket handler
- Delete createStaticFileRoute entirely
- Update any other affected helpers
8. **Clean up tests** (1.5 hours)
- Delete all tests for removed action types
- Update socket handler tests to verify context parameter
- Add new tests for block/redirect socket handlers
9. **Update documentation** (30 minutes)
- Update README.md
- Update type documentation
- Add examples of context usage
**Total estimated time: ~5 hours**
---
## Considerations
### Benefits
- **Dramatically simpler API** - Only 2 action types instead of 5
- **Consistent handling model** - Everything is either forwarding or custom handling
- **More powerful** - Socket handlers with context can do much more than old static types
- **Less code to maintain** - Removing hundreds of lines of specialized handler code
- **Better extensibility** - Easy to add new socket handlers for any use case
- **Context awareness** - All handlers get full connection context
### Trade-offs
- Static file serving removed (users should use nginx/apache behind proxy)
- HTTP-specific logic (redirects) now in socket handlers (but more flexible)
- Slightly more verbose configuration for simple blocks/redirects
### Why This Approach
1. **Simplicity wins** - Two concepts are easier to understand than five
2. **Power through context** - Socket handlers with context are more capable
3. **Clean break** - No migration paths means cleaner code
4. **Future proof** - Easy to add new handlers without changing core
---
## Code Examples: Before and After
### Block Action
```typescript
// BEFORE
{
action: { type: 'block' }
}
// AFTER
{
action: {
type: 'socket-handler',
socketHandler: SocketHandlers.block()
}
}
```
### HTTP Redirect
```typescript
// BEFORE
{
action: {
type: 'redirect',
redirect: {
to: 'https://{domain}:443{path}',
status: 301
}
}
}
// AFTER
{
action: {
type: 'socket-handler',
socketHandler: SocketHandlers.httpRedirect('https://{domain}:443{path}', 301)
}
}
```
### Custom Handler with Context
```typescript
// NEW CAPABILITY - Access to full context
{
action: {
type: 'socket-handler',
socketHandler: (socket, context) => {
console.log(`Connection from ${context.clientIp} to ${context.domain}:${context.port}`);
// Custom handling based on context...
}
}
}
```
---
## Detailed Implementation Tasks
### Step 1: Update TSocketHandler Type (15 minutes)
- [x] Open `ts/proxies/smart-proxy/models/route-types.ts`
- [x] Find line 14: `export type TSocketHandler = (socket: plugins.net.Socket) => void | Promise<void>;`
- [x] Import IRouteContext at top of file: `import type { IRouteContext } from '../../../core/models/route-context.js';`
- [x] Update TSocketHandler to: `export type TSocketHandler = (socket: plugins.net.Socket, context: IRouteContext) => void | Promise<void>;`
- [x] Save file
### Step 2: Update Socket Handler Implementation (30 minutes)
- [x] Open `ts/proxies/smart-proxy/route-connection-handler.ts`
- [x] Find `handleSocketHandlerAction` method (around line 790)
- [x] Add route context creation after line 809:
```typescript
// Create route context for the handler
const routeContext = this.createRouteContext({
connectionId: record.id,
port: record.localPort,
domain: record.lockedDomain,
clientIp: record.remoteIP,
serverIp: socket.localAddress || '',
isTls: record.isTLS || false,
tlsVersion: record.tlsVersion,
routeName: route.name,
routeId: route.id,
});
```
- [x] Update line 812 from `const result = route.action.socketHandler(socket);`
- [x] To: `const result = route.action.socketHandler(socket, routeContext);`
- [x] Save file
### Step 3: Update Existing Socket Handlers in route-helpers.ts (20 minutes)
- [x] Open `ts/proxies/smart-proxy/utils/route-helpers.ts`
- [x] Update `echo` handler (line 856):
- From: `echo: (socket: plugins.net.Socket) => {`
- To: `echo: (socket: plugins.net.Socket, context: IRouteContext) => {`
- [x] Update `proxy` handler (line 864):
- From: `proxy: (targetHost: string, targetPort: number) => (socket: plugins.net.Socket) => {`
- To: `proxy: (targetHost: string, targetPort: number) => (socket: plugins.net.Socket, context: IRouteContext) => {`
- [x] Update `lineProtocol` handler (line 879):
- From: `lineProtocol: (handler: (line: string, socket: plugins.net.Socket) => void) => (socket: plugins.net.Socket) => {`
- To: `lineProtocol: (handler: (line: string, socket: plugins.net.Socket) => void) => (socket: plugins.net.Socket, context: IRouteContext) => {`
- [ ] Update `httpResponse` handler (line 896):
- From: `httpResponse: (statusCode: number, body: string) => (socket: plugins.net.Socket) => {`
- To: `httpResponse: (statusCode: number, body: string) => (socket: plugins.net.Socket, context: IRouteContext) => {`
- [ ] Save file
### Step 4: Remove Old Action Types from Type Definitions (15 minutes)
- [ ] Open `ts/proxies/smart-proxy/models/route-types.ts`
- [ ] Find line with TRouteActionType (around line 10)
- [ ] Change from: `export type TRouteActionType = 'forward' | 'redirect' | 'block' | 'static' | 'socket-handler';`
- [ ] To: `export type TRouteActionType = 'forward' | 'socket-handler';`
- [ ] Find and delete IRouteRedirect interface (around line 123-126)
- [ ] Find and delete IRouteStatic interface (if exists)
- [ ] Find IRouteAction interface
- [ ] Remove these properties:
- `redirect?: IRouteRedirect;`
- `static?: IRouteStatic;`
- [ ] Save file
### Step 5: Delete Handler Classes (15 minutes)
- [ ] Delete file: `ts/proxies/http-proxy/handlers/redirect-handler.ts`
- [ ] Delete file: `ts/proxies/http-proxy/handlers/static-handler.ts`
- [ ] Open `ts/proxies/http-proxy/handlers/index.ts`
- [ ] Delete all content (the file only exports RedirectHandler and StaticHandler)
- [ ] Save empty file or delete it
### Step 6: Remove Handler Methods from RouteConnectionHandler (30 minutes)
- [ ] Open `ts/proxies/smart-proxy/route-connection-handler.ts`
- [ ] Find and delete entire `handleRedirectAction` method (around line 723)
- [ ] Find and delete entire `handleBlockAction` method (around line 750)
- [ ] Find and delete entire `handleStaticAction` method (around line 773)
- [ ] Remove imports at top:
- `import { RedirectHandler, StaticHandler } from '../http-proxy/handlers/index.js';`
- [ ] Save file
### Step 7: Update Switch Statement (15 minutes)
- [ ] Still in `route-connection-handler.ts`
- [ ] Find switch statement (around line 388)
- [ ] Remove these cases:
- `case 'redirect': return this.handleRedirectAction(...)`
- `case 'block': return this.handleBlockAction(...)`
- `case 'static': this.handleStaticAction(...); return;`
- [ ] Verify only 'forward' and 'socket-handler' cases remain
- [ ] Save file
### Step 8: Add New Socket Handlers to route-helpers.ts (30 minutes)
- [ ] Open `ts/proxies/smart-proxy/utils/route-helpers.ts`
- [ ] Add import at top: `import type { IRouteContext } from '../../../core/models/route-context.js';`
- [ ] Add to SocketHandlers object:
```typescript
/**
* Block connection immediately
*/
block: (message?: string) => (socket: plugins.net.Socket, context: IRouteContext) => {
const finalMessage = message || `Connection blocked from ${context.clientIp}`;
if (finalMessage) {
socket.write(finalMessage);
}
socket.end();
},
/**
* HTTP block response
*/
httpBlock: (statusCode: number = 403, message?: string) => (socket: plugins.net.Socket, context: IRouteContext) => {
const defaultMessage = `Access forbidden for ${context.domain || context.clientIp}`;
const finalMessage = message || defaultMessage;
const response = [
`HTTP/1.1 ${statusCode} ${finalMessage}`,
'Content-Type: text/plain',
`Content-Length: ${finalMessage.length}`,
'Connection: close',
'',
finalMessage
].join('\r\n');
socket.write(response);
socket.end();
},
/**
* HTTP redirect handler
*/
httpRedirect: (locationTemplate: string, statusCode: number = 301) => (socket: plugins.net.Socket, context: IRouteContext) => {
let buffer = '';
socket.once('data', (data) => {
buffer += data.toString();
const lines = buffer.split('\r\n');
const requestLine = lines[0];
const [method, path] = requestLine.split(' ');
const domain = context.domain || 'localhost';
const port = context.port;
let finalLocation = locationTemplate
.replace('{domain}', domain)
.replace('{port}', String(port))
.replace('{path}', path)
.replace('{clientIp}', context.clientIp);
const message = `Redirecting to ${finalLocation}`;
const response = [
`HTTP/1.1 ${statusCode} ${statusCode === 301 ? 'Moved Permanently' : 'Found'}`,
`Location: ${finalLocation}`,
'Content-Type: text/plain',
`Content-Length: ${message.length}`,
'Connection: close',
'',
message
].join('\r\n');
socket.write(response);
socket.end();
});
}
```
- [x] Save file
### Step 9: Update Helper Functions (20 minutes)
- [x] Still in `route-helpers.ts`
- [x] Update `createHttpToHttpsRedirect` function (around line 109):
- Change the action to use socket handler:
```typescript
action: {
type: 'socket-handler',
socketHandler: SocketHandlers.httpRedirect(`https://{domain}:${httpsPort}{path}`, 301)
}
```
- [x] Delete entire `createStaticFileRoute` function (lines 277-322)
- [x] Save file
### Step 10: Update Test Files (1.5 hours)
#### 10.1 Update Socket Handler Tests
- [x] Open `test/test.socket-handler.ts`
- [x] Update all handler functions to accept context parameter
- [x] Open `test/test.socket-handler.simple.ts`
- [x] Update handler to accept context parameter
- [x] Open `test/test.socket-handler-race.ts`
- [x] Update handler to accept context parameter
#### 10.2 Find and Update/Delete Redirect Tests
- [x] Search for files containing `type: 'redirect'` in test directory
- [x] For each file:
- [x] If it's a redirect-specific test, delete the file
- [x] If it's a mixed test, update redirect actions to use socket handlers
- [x] Files to check:
- [x] `test/test.route-redirects.ts` - deleted entire file
- [x] `test/test.forwarding.ts` - update any redirect tests
- [x] `test/test.forwarding.examples.ts` - update any redirect tests
- [x] `test/test.route-config.ts` - update any redirect tests
#### 10.3 Find and Update/Delete Block Tests
- [x] Search for files containing `type: 'block'` in test directory
- [x] Update or delete as appropriate
#### 10.4 Find and Delete Static Tests
- [x] Search for files containing `type: 'static'` in test directory
- [x] Delete static-specific test files
- [x] Remove static tests from mixed test files
### Step 11: Clean Up Imports and Exports (20 minutes)
- [x] Open `ts/proxies/smart-proxy/utils/index.ts`
- [x] Ensure route-helpers.ts is exported
- [x] Remove any exports of deleted functions
- [x] Open `ts/index.ts`
- [x] Remove any exports of deleted types/interfaces
- [x] Search for any remaining imports of RedirectHandler or StaticHandler
- [x] Remove any found imports
### Step 12: Documentation Updates (30 minutes)
- [x] Update README.md:
- [x] Remove any mention of redirect, block, static action types
- [x] Add examples of socket handlers with context
- [x] Document the two action types: forward and socket-handler
- [x] Update any JSDoc comments in modified files
- [x] Add examples showing context usage
### Step 13: Final Verification (15 minutes)
- [x] Run build: `pnpm build`
- [x] Fix any compilation errors
- [x] Run tests: `pnpm test`
- [x] Fix any failing tests
- [x] Search codebase for any remaining references to:
- [x] 'redirect' action type
- [x] 'block' action type
- [x] 'static' action type
- [x] RedirectHandler
- [x] StaticHandler
- [x] IRouteRedirect
- [x] IRouteStatic
### Step 14: Test New Functionality (30 minutes)
- [x] Create test for block socket handler with context
- [x] Create test for httpBlock socket handler with context
- [x] Create test for httpRedirect socket handler with context
- [x] Verify context is properly passed in all scenarios
---
## Files to be Modified/Deleted
### Files to Modify:
1. `ts/proxies/smart-proxy/models/route-types.ts` - Update types
2. `ts/proxies/smart-proxy/route-connection-handler.ts` - Remove handlers, update switch
3. `ts/proxies/smart-proxy/utils/route-helpers.ts` - Update handlers, add new ones
4. `ts/proxies/http-proxy/handlers/index.ts` - Remove exports
5. Various test files - Update to use socket handlers
### Files to Delete:
1. `ts/proxies/http-proxy/handlers/redirect-handler.ts`
2. `ts/proxies/http-proxy/handlers/static-handler.ts`
3. `test/test.route-redirects.ts` (likely)
4. Any static-specific test files
### Test Files Requiring Updates (15 files found):
- test/test.acme-http01-challenge.ts
- test/test.logger-error-handling.ts
- test/test.port80-management.node.ts
- test/test.route-update-callback.node.ts
- test/test.acme-state-manager.node.ts
- test/test.acme-route-creation.ts
- test/test.forwarding.ts
- test/test.route-redirects.ts
- test/test.forwarding.examples.ts
- test/test.acme-simple.ts
- test/test.acme-http-challenge.ts
- test/test.certificate-provisioning.ts
- test/test.route-config.ts
- test/test.route-utils.ts
- test/test.certificate-simple.ts
---
## Success Criteria
- ✅ Only 'forward' and 'socket-handler' action types remain
- ✅ Socket handlers receive IRouteContext as second parameter
- ✅ All old handler code completely removed
- ✅ Redirect functionality works via context-aware socket handlers
- ✅ Block functionality works via context-aware socket handlers
- ✅ All tests updated and passing
- ✅ Documentation updated with new examples
- ✅ No performance regression
- ✅ Cleaner, simpler codebase

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@ -0,0 +1,112 @@
# SmartProxy: Proxy Protocol and Proxy Chaining Summary
## Quick Summary
SmartProxy supports proxy chaining through the **WrappedSocket** infrastructure, which is designed to handle PROXY protocol for preserving real client IP addresses across multiple proxy layers. While the infrastructure is in place (v19.5.19+), the actual PROXY protocol parsing is not yet implemented.
## Current State
### ✅ What's Implemented
- **WrappedSocket class** - Foundation for proxy protocol support
- **Proxy IP configuration** - `proxyIPs` setting to define trusted proxies
- **Socket wrapping** - All incoming connections wrapped automatically
- **Connection tracking** - Real client IP tracking in connection records
- **Test infrastructure** - Tests for proxy chaining scenarios
### ❌ What's Missing
- **PROXY protocol v1 parsing** - Header parsing not implemented
- **PROXY protocol v2 support** - Binary format not supported
- **Automatic header generation** - Must be manually implemented
- **Production testing** - No HAProxy/AWS ELB compatibility tests
## Key Files
### Core Implementation
- `ts/core/models/wrapped-socket.ts` - WrappedSocket class
- `ts/core/models/socket-types.ts` - Helper functions
- `ts/proxies/smart-proxy/route-connection-handler.ts` - Connection handling
- `ts/proxies/smart-proxy/models/interfaces.ts` - Configuration interfaces
### Tests
- `test/test.wrapped-socket.ts` - WrappedSocket unit tests
- `test/test.proxy-chain-simple.node.ts` - Basic proxy chain test
- `test/test.proxy-chaining-accumulation.node.ts` - Connection leak tests
### Documentation
- `readme.proxy-protocol.md` - Detailed implementation guide
- `readme.proxy-protocol-example.md` - Code examples and future implementation
- `readme.hints.md` - Project overview with WrappedSocket notes
## Quick Configuration Example
```typescript
// Outer proxy (internet-facing)
const outerProxy = new SmartProxy({
sendProxyProtocol: true, // Will send PROXY protocol (when implemented)
routes: [{
name: 'forward-to-inner',
match: { ports: 443 },
action: {
type: 'forward',
target: { host: 'inner-proxy.local', port: 443 },
tls: { mode: 'passthrough' }
}
}]
});
// Inner proxy (backend-facing)
const innerProxy = new SmartProxy({
proxyIPs: ['outer-proxy.local'], // Trust the outer proxy
acceptProxyProtocol: true, // Will parse PROXY protocol (when implemented)
routes: [{
name: 'forward-to-backend',
match: { ports: 443, domains: 'api.example.com' },
action: {
type: 'forward',
target: { host: 'backend.local', port: 8080 },
tls: { mode: 'terminate' }
}
}]
});
```
## How It Works (Conceptually)
1. **Client** connects to **Outer Proxy**
2. **Outer Proxy** wraps socket in WrappedSocket
3. **Outer Proxy** forwards to **Inner Proxy**
- Would prepend: `PROXY TCP4 <client-ip> <proxy-ip> <client-port> <proxy-port>\r\n`
4. **Inner Proxy** receives connection from trusted proxy
5. **Inner Proxy** would parse PROXY protocol header
6. **Inner Proxy** updates WrappedSocket with real client IP
7. **Backend** receives connection with preserved client information
## Important Notes
### Connection Cleanup
The fix for proxy chain connection accumulation (v19.5.14+) changed the default socket behavior:
- **Before**: Half-open connections supported by default (caused accumulation)
- **After**: Both sockets close when one closes (prevents accumulation)
- **Override**: Set `enableHalfOpen: true` if half-open needed
### Security
- Only parse PROXY protocol from IPs listed in `proxyIPs`
- Never use `0.0.0.0/0` as a trusted proxy range
- Each proxy in chain must explicitly trust the previous proxy
### Testing
Use the test files as reference implementations:
- Simple chains: `test.proxy-chain-simple.node.ts`
- Connection leaks: `test.proxy-chaining-accumulation.node.ts`
- Rapid reconnects: `test.rapid-retry-cleanup.node.ts`
## Next Steps
To fully implement PROXY protocol support:
1. Implement the parser in `ProxyProtocolParser` class
2. Integrate parser into `handleConnection` method
3. Add header generation to `setupDirectConnection`
4. Test with real proxies (HAProxy, nginx, AWS ELB)
5. Add PROXY protocol v2 support for better performance
See `readme.proxy-protocol-example.md` for detailed implementation examples.

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# SmartProxy PROXY Protocol Implementation Example
This document shows how PROXY protocol parsing could be implemented in SmartProxy. Note that this is a conceptual implementation guide - the actual parsing is not yet implemented in the current version.
## Conceptual PROXY Protocol v1 Parser Implementation
### Parser Class
```typescript
// This would go in ts/core/utils/proxy-protocol-parser.ts
import { logger } from './logger.js';
export interface IProxyProtocolInfo {
version: 1 | 2;
command: 'PROXY' | 'LOCAL';
family: 'TCP4' | 'TCP6' | 'UNKNOWN';
sourceIP: string;
destIP: string;
sourcePort: number;
destPort: number;
headerLength: number;
}
export class ProxyProtocolParser {
private static readonly PROXY_V1_SIGNATURE = 'PROXY ';
private static readonly MAX_V1_HEADER_LENGTH = 108; // Max possible v1 header
/**
* Parse PROXY protocol v1 header from buffer
* Returns null if not a valid PROXY protocol header
*/
static parseV1(buffer: Buffer): IProxyProtocolInfo | null {
// Need at least 8 bytes for "PROXY " + newline
if (buffer.length < 8) {
return null;
}
// Check for v1 signature
const possibleHeader = buffer.toString('ascii', 0, 6);
if (possibleHeader !== this.PROXY_V1_SIGNATURE) {
return null;
}
// Find the end of the header (CRLF)
let headerEnd = -1;
for (let i = 6; i < Math.min(buffer.length, this.MAX_V1_HEADER_LENGTH); i++) {
if (buffer[i] === 0x0D && buffer[i + 1] === 0x0A) { // \r\n
headerEnd = i + 2;
break;
}
}
if (headerEnd === -1) {
// No complete header found
return null;
}
// Parse the header line
const headerLine = buffer.toString('ascii', 0, headerEnd - 2);
const parts = headerLine.split(' ');
if (parts.length !== 6) {
logger.log('warn', 'Invalid PROXY v1 header format', {
headerLine,
partCount: parts.length
});
return null;
}
const [proxy, family, srcIP, dstIP, srcPort, dstPort] = parts;
// Validate family
if (!['TCP4', 'TCP6', 'UNKNOWN'].includes(family)) {
logger.log('warn', 'Invalid PROXY protocol family', { family });
return null;
}
// Validate ports
const sourcePort = parseInt(srcPort);
const destPort = parseInt(dstPort);
if (isNaN(sourcePort) || sourcePort < 1 || sourcePort > 65535 ||
isNaN(destPort) || destPort < 1 || destPort > 65535) {
logger.log('warn', 'Invalid PROXY protocol ports', { srcPort, dstPort });
return null;
}
return {
version: 1,
command: 'PROXY',
family: family as 'TCP4' | 'TCP6' | 'UNKNOWN',
sourceIP: srcIP,
destIP: dstIP,
sourcePort,
destPort,
headerLength: headerEnd
};
}
/**
* Check if buffer potentially contains PROXY protocol
*/
static mightBeProxyProtocol(buffer: Buffer): boolean {
if (buffer.length < 6) return false;
// Check for v1 signature
const start = buffer.toString('ascii', 0, 6);
if (start === this.PROXY_V1_SIGNATURE) return true;
// Check for v2 signature (12 bytes: \x0D\x0A\x0D\x0A\x00\x0D\x0A\x51\x55\x49\x54\x0A)
if (buffer.length >= 12) {
const v2Sig = Buffer.from([0x0D, 0x0A, 0x0D, 0x0A, 0x00, 0x0D, 0x0A, 0x51, 0x55, 0x49, 0x54, 0x0A]);
if (buffer.compare(v2Sig, 0, 12, 0, 12) === 0) return true;
}
return false;
}
}
```
### Integration with RouteConnectionHandler
```typescript
// This shows how it would be integrated into route-connection-handler.ts
private async handleProxyProtocol(
socket: plugins.net.Socket,
wrappedSocket: WrappedSocket,
record: IConnectionRecord
): Promise<Buffer | null> {
const remoteIP = socket.remoteAddress || '';
// Only parse PROXY protocol from trusted IPs
if (!this.settings.proxyIPs?.includes(remoteIP)) {
return null;
}
return new Promise((resolve) => {
let buffer = Buffer.alloc(0);
let headerParsed = false;
const parseHandler = (chunk: Buffer) => {
// Accumulate data
buffer = Buffer.concat([buffer, chunk]);
// Try to parse PROXY protocol
const proxyInfo = ProxyProtocolParser.parseV1(buffer);
if (proxyInfo) {
// Update wrapped socket with real client info
wrappedSocket.setProxyInfo(proxyInfo.sourceIP, proxyInfo.sourcePort);
// Update connection record
record.remoteIP = proxyInfo.sourceIP;
logger.log('info', 'PROXY protocol parsed', {
connectionId: record.id,
realIP: proxyInfo.sourceIP,
realPort: proxyInfo.sourcePort,
proxyIP: remoteIP
});
// Remove this handler
socket.removeListener('data', parseHandler);
headerParsed = true;
// Return remaining data after header
const remaining = buffer.slice(proxyInfo.headerLength);
resolve(remaining.length > 0 ? remaining : null);
} else if (buffer.length > 108) {
// Max v1 header length exceeded, not PROXY protocol
socket.removeListener('data', parseHandler);
headerParsed = true;
resolve(buffer);
}
};
// Set timeout for PROXY protocol parsing
const timeout = setTimeout(() => {
if (!headerParsed) {
socket.removeListener('data', parseHandler);
logger.log('warn', 'PROXY protocol parsing timeout', {
connectionId: record.id,
bufferLength: buffer.length
});
resolve(buffer.length > 0 ? buffer : null);
}
}, 1000); // 1 second timeout
socket.on('data', parseHandler);
// Clean up on early close
socket.once('close', () => {
clearTimeout(timeout);
if (!headerParsed) {
socket.removeListener('data', parseHandler);
resolve(null);
}
});
});
}
// Modified handleConnection to include PROXY protocol parsing
public async handleConnection(socket: plugins.net.Socket): void {
const remoteIP = socket.remoteAddress || '';
const localPort = socket.localPort || 0;
// Always wrap the socket
const wrappedSocket = new WrappedSocket(socket);
// Create connection record
const record = this.connectionManager.createConnection(wrappedSocket);
if (!record) return;
// If from trusted proxy, parse PROXY protocol
if (this.settings.proxyIPs?.includes(remoteIP)) {
const remainingData = await this.handleProxyProtocol(socket, wrappedSocket, record);
if (remainingData) {
// Process remaining data as normal
this.handleInitialData(wrappedSocket, record, remainingData);
} else {
// Wait for more data
this.handleInitialData(wrappedSocket, record);
}
} else {
// Not from trusted proxy, handle normally
this.handleInitialData(wrappedSocket, record);
}
}
```
### Sending PROXY Protocol When Forwarding
```typescript
// This would be added to setupDirectConnection method
private setupDirectConnection(
socket: plugins.net.Socket | WrappedSocket,
record: IConnectionRecord,
serverName?: string,
initialChunk?: Buffer,
overridePort?: number,
targetHost?: string,
targetPort?: number
): void {
// ... existing code ...
// Create target socket
const targetSocket = createSocketWithErrorHandler({
port: finalTargetPort,
host: finalTargetHost,
onConnect: () => {
// If sendProxyProtocol is enabled, send PROXY header first
if (this.settings.sendProxyProtocol) {
const proxyHeader = this.buildProxyProtocolHeader(wrappedSocket, targetSocket);
targetSocket.write(proxyHeader);
}
// Then send any pending data
if (record.pendingData.length > 0) {
const combinedData = Buffer.concat(record.pendingData);
targetSocket.write(combinedData);
}
// ... rest of connection setup ...
}
});
}
private buildProxyProtocolHeader(
clientSocket: WrappedSocket,
serverSocket: net.Socket
): Buffer {
const family = clientSocket.remoteFamily === 'IPv6' ? 'TCP6' : 'TCP4';
const srcIP = clientSocket.remoteAddress || '0.0.0.0';
const srcPort = clientSocket.remotePort || 0;
const dstIP = serverSocket.localAddress || '0.0.0.0';
const dstPort = serverSocket.localPort || 0;
const header = `PROXY ${family} ${srcIP} ${dstIP} ${srcPort} ${dstPort}\r\n`;
return Buffer.from(header, 'ascii');
}
```
## Complete Example: HAProxy Compatible Setup
```typescript
// Example showing a complete HAProxy-compatible SmartProxy setup
import { SmartProxy } from '@push.rocks/smartproxy';
// Configuration matching HAProxy's proxy protocol behavior
const proxy = new SmartProxy({
// Accept PROXY protocol from these sources (like HAProxy's 'accept-proxy')
proxyIPs: [
'10.0.0.0/8', // Private network load balancers
'172.16.0.0/12', // Docker networks
'192.168.0.0/16' // Local networks
],
// Send PROXY protocol to backends (like HAProxy's 'send-proxy')
sendProxyProtocol: true,
routes: [
{
name: 'web-app',
match: {
ports: 443,
domains: ['app.example.com', 'www.example.com']
},
action: {
type: 'forward',
target: {
host: 'backend-pool.internal',
port: 8080
},
tls: {
mode: 'terminate',
certificate: 'auto',
acme: {
email: 'ssl@example.com'
}
}
}
}
]
});
// Start the proxy
await proxy.start();
// The proxy will now:
// 1. Accept connections on port 443
// 2. Parse PROXY protocol from trusted IPs
// 3. Terminate TLS
// 4. Forward to backend with PROXY protocol header
// 5. Backend sees real client IP
```
## Testing PROXY Protocol
```typescript
// Test client that sends PROXY protocol
import * as net from 'net';
function createProxyProtocolClient(
realClientIP: string,
realClientPort: number,
proxyHost: string,
proxyPort: number
): net.Socket {
const client = net.connect(proxyPort, proxyHost);
client.on('connect', () => {
// Send PROXY protocol header
const header = `PROXY TCP4 ${realClientIP} ${proxyHost} ${realClientPort} ${proxyPort}\r\n`;
client.write(header);
// Then send actual request
client.write('GET / HTTP/1.1\r\nHost: example.com\r\n\r\n');
});
return client;
}
// Usage
const client = createProxyProtocolClient(
'203.0.113.45', // Real client IP
54321, // Real client port
'localhost', // Proxy host
8080 // Proxy port
);
```
## AWS Network Load Balancer Example
```typescript
// Configuration for AWS NLB with PROXY protocol v2
const proxy = new SmartProxy({
// AWS NLB IP ranges (get current list from AWS)
proxyIPs: [
'10.0.0.0/8', // VPC CIDR
// Add specific NLB IPs or use AWS IP ranges
],
// AWS NLB uses PROXY protocol v2 by default
acceptProxyProtocolV2: true, // Future feature
routes: [{
name: 'aws-app',
match: { ports: 443 },
action: {
type: 'forward',
target: {
host: 'app-cluster.internal',
port: 8443
},
tls: { mode: 'passthrough' }
}
}]
});
// The proxy will:
// 1. Accept PROXY protocol v2 from AWS NLB
// 2. Preserve VPC endpoint IDs and other metadata
// 3. Forward to backend with real client information
```
## Debugging PROXY Protocol
```typescript
// Enable detailed logging to debug PROXY protocol parsing
const proxy = new SmartProxy({
enableDetailedLogging: true,
proxyIPs: ['10.0.0.1'],
// Add custom logging for debugging
routes: [{
name: 'debug-route',
match: { ports: 8080 },
action: {
type: 'socket-handler',
socketHandler: async (socket, context) => {
console.log('Socket handler called with context:', {
clientIp: context.clientIp, // Real IP from PROXY protocol
port: context.port,
connectionId: context.connectionId,
timestamp: context.timestamp
});
// Handle the socket...
}
}
}]
});
```
## Security Considerations
1. **Always validate trusted proxy IPs** - Never accept PROXY protocol from untrusted sources
2. **Use specific IP ranges** - Avoid wildcards like `0.0.0.0/0`
3. **Implement rate limiting** - PROXY protocol parsing has a computational cost
4. **Validate header format** - Reject malformed headers immediately
5. **Set parsing timeouts** - Prevent slow loris attacks via PROXY headers
6. **Log parsing failures** - Monitor for potential attacks or misconfigurations
## Performance Considerations
1. **Header parsing overhead** - Minimal, one-time cost per connection
2. **Memory usage** - Small buffer for header accumulation (max 108 bytes for v1)
3. **Connection establishment** - Slight delay for PROXY protocol parsing
4. **Throughput impact** - None after initial header parsing
5. **CPU usage** - Negligible for well-formed headers
## Future Enhancements
1. **PROXY Protocol v2** - Binary format for better performance
2. **TLS information preservation** - Pass TLS version, cipher, SNI via PP2
3. **Custom type-length-value (TLV) fields** - Extended metadata support
4. **Connection pooling** - Reuse backend connections with different client IPs
5. **Health checks** - Skip PROXY protocol for health check connections

415
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# SmartProxy PROXY Protocol and Proxy Chaining Documentation
## Overview
SmartProxy implements support for the PROXY protocol v1 to enable proxy chaining and preserve real client IP addresses across multiple proxy layers. This documentation covers the implementation details, configuration, and usage patterns for proxy chaining scenarios.
## Architecture
### WrappedSocket Implementation
The foundation of PROXY protocol support is the `WrappedSocket` class, which wraps regular `net.Socket` instances to provide transparent access to real client information when behind a proxy.
```typescript
// ts/core/models/wrapped-socket.ts
export class WrappedSocket {
public readonly socket: plugins.net.Socket;
private realClientIP?: string;
private realClientPort?: number;
constructor(
socket: plugins.net.Socket,
realClientIP?: string,
realClientPort?: number
) {
this.socket = socket;
this.realClientIP = realClientIP;
this.realClientPort = realClientPort;
// Uses JavaScript Proxy to delegate all methods to underlying socket
return new Proxy(this, {
get(target, prop, receiver) {
// Override specific properties
if (prop === 'remoteAddress') {
return target.remoteAddress;
}
if (prop === 'remotePort') {
return target.remotePort;
}
// ... delegate other properties to underlying socket
}
});
}
get remoteAddress(): string | undefined {
return this.realClientIP || this.socket.remoteAddress;
}
get remotePort(): number | undefined {
return this.realClientPort || this.socket.remotePort;
}
get isFromTrustedProxy(): boolean {
return !!this.realClientIP;
}
}
```
### Key Design Decisions
1. **All sockets are wrapped** - Every incoming connection is wrapped in a WrappedSocket, not just those from trusted proxies
2. **Proxy pattern for delegation** - Uses JavaScript Proxy to transparently delegate all Socket methods while allowing property overrides
3. **Not a Duplex stream** - Simple wrapper approach avoids complexity and infinite loops
4. **Trust-based parsing** - PROXY protocol parsing only occurs for connections from trusted proxy IPs
## Configuration
### Basic PROXY Protocol Configuration
```typescript
const proxy = new SmartProxy({
// List of trusted proxy IPs that can send PROXY protocol
proxyIPs: ['10.0.0.1', '10.0.0.2', '192.168.1.0/24'],
// Global option to accept PROXY protocol (defaults based on proxyIPs)
acceptProxyProtocol: true,
// Global option to send PROXY protocol to all targets
sendProxyProtocol: false,
routes: [
{
name: 'backend-app',
match: { ports: 443, domains: 'app.example.com' },
action: {
type: 'forward',
target: { host: 'backend.internal', port: 8443 },
tls: { mode: 'passthrough' }
}
}
]
});
```
### Proxy Chain Configuration
Setting up two SmartProxies in a chain:
```typescript
// Outer Proxy (Internet-facing)
const outerProxy = new SmartProxy({
proxyIPs: [], // No trusted proxies for outer proxy
sendProxyProtocol: true, // Send PROXY protocol to inner proxy
routes: [{
name: 'to-inner-proxy',
match: { ports: 443 },
action: {
type: 'forward',
target: {
host: 'inner-proxy.internal',
port: 443
},
tls: { mode: 'passthrough' }
}
}]
});
// Inner Proxy (Backend-facing)
const innerProxy = new SmartProxy({
proxyIPs: ['outer-proxy.internal'], // Trust the outer proxy
acceptProxyProtocol: true,
routes: [{
name: 'to-backend',
match: { ports: 443, domains: 'app.example.com' },
action: {
type: 'forward',
target: {
host: 'backend.internal',
port: 8080
},
tls: {
mode: 'terminate',
certificate: 'auto'
}
}
}]
});
```
## How Two SmartProxies Communicate
### Connection Flow
1. **Client connects to Outer Proxy**
```
Client (203.0.113.45:54321) → Outer Proxy (1.2.3.4:443)
```
2. **Outer Proxy wraps the socket**
```typescript
// In RouteConnectionHandler.handleConnection()
const wrappedSocket = new WrappedSocket(socket);
// At this point:
// wrappedSocket.remoteAddress = '203.0.113.45'
// wrappedSocket.remotePort = 54321
```
3. **Outer Proxy forwards to Inner Proxy**
- Creates new connection to inner proxy
- If `sendProxyProtocol` is enabled, prepends PROXY protocol header:
```
PROXY TCP4 203.0.113.45 1.2.3.4 54321 443\r\n
[Original TLS/HTTP data follows]
```
4. **Inner Proxy receives connection**
- Sees connection from outer proxy IP
- Checks if IP is in `proxyIPs` list
- If trusted, parses PROXY protocol header
- Updates WrappedSocket with real client info:
```typescript
wrappedSocket.setProxyInfo('203.0.113.45', 54321);
```
5. **Inner Proxy routes based on real client IP**
- Security checks use real client IP
- Connection records track real client IP
- Backend sees requests from the original client IP
### Connection Record Tracking
```typescript
// In ConnectionManager
interface IConnectionRecord {
id: string;
incoming: WrappedSocket; // Wrapped socket with real client info
outgoing: net.Socket | null;
remoteIP: string; // Real client IP from PROXY protocol or direct connection
localPort: number;
// ... other fields
}
```
## Implementation Details
### Socket Wrapping in Route Handler
```typescript
// ts/proxies/smart-proxy/route-connection-handler.ts
public handleConnection(socket: plugins.net.Socket): void {
const remoteIP = socket.remoteAddress || '';
// Always wrap the socket to prepare for potential PROXY protocol
const wrappedSocket = new WrappedSocket(socket);
// If this is from a trusted proxy, log it
if (this.settings.proxyIPs?.includes(remoteIP)) {
logger.log('debug', `Connection from trusted proxy ${remoteIP}, PROXY protocol parsing will be enabled`);
}
// Create connection record with wrapped socket
const record = this.connectionManager.createConnection(wrappedSocket);
// Continue with normal connection handling...
}
```
### Socket Utility Integration
When passing wrapped sockets to socket utility functions, the underlying socket must be extracted:
```typescript
import { getUnderlyingSocket } from '../../core/models/socket-types.js';
// In setupDirectConnection()
const incomingSocket = getUnderlyingSocket(socket); // Extract raw socket
setupBidirectionalForwarding(incomingSocket, targetSocket, {
onClientData: (chunk) => {
record.bytesReceived += chunk.length;
},
onServerData: (chunk) => {
record.bytesSent += chunk.length;
},
onCleanup: (reason) => {
this.connectionManager.cleanupConnection(record, reason);
},
enableHalfOpen: false // Required for proxy chains
});
```
## Current Status and Limitations
### Implemented (v19.5.19+)
- ✅ WrappedSocket foundation class
- ✅ Socket wrapping in connection handler
- ✅ Connection manager support for wrapped sockets
- ✅ Socket utility integration helpers
- ✅ Proxy IP configuration options
### Not Yet Implemented
- ❌ PROXY protocol v1 header parsing
- ❌ PROXY protocol v2 binary format support
- ❌ Automatic PROXY protocol header generation when forwarding
- ❌ HAProxy compatibility testing
- ❌ AWS ELB/NLB compatibility testing
### Known Issues
1. **No actual PROXY protocol parsing** - The infrastructure is in place but the protocol parsing is not yet implemented
2. **Manual configuration required** - No automatic detection of PROXY protocol support
3. **Limited to TCP connections** - WebSocket connections through proxy chains may not preserve client IPs
## Testing Proxy Chains
### Basic Proxy Chain Test
```typescript
// test/test.proxy-chain-simple.node.ts
tap.test('simple proxy chain test', async () => {
// Create backend server
const backend = net.createServer((socket) => {
console.log('Backend: Connection received');
socket.write('HTTP/1.1 200 OK\r\n\r\nHello from backend');
socket.end();
});
// Create inner proxy (downstream)
const innerProxy = new SmartProxy({
proxyIPs: ['127.0.0.1'], // Trust localhost for testing
routes: [{
name: 'to-backend',
match: { ports: 8591 },
action: {
type: 'forward',
target: { host: 'localhost', port: 9999 }
}
}]
});
// Create outer proxy (upstream)
const outerProxy = new SmartProxy({
sendProxyProtocol: true, // Send PROXY to inner
routes: [{
name: 'to-inner',
match: { ports: 8590 },
action: {
type: 'forward',
target: { host: 'localhost', port: 8591 }
}
}]
});
// Test connection through chain
const client = net.connect(8590, 'localhost');
client.write('GET / HTTP/1.1\r\nHost: test.com\r\n\r\n');
// Verify no connection accumulation
const counts = getConnectionCounts();
expect(counts.proxy1).toEqual(0);
expect(counts.proxy2).toEqual(0);
});
```
## Best Practices
### 1. Always Configure Trusted Proxies
```typescript
// Be specific about which IPs can send PROXY protocol
proxyIPs: ['10.0.0.1', '10.0.0.2'], // Good
proxyIPs: ['0.0.0.0/0'], // Bad - trusts everyone
```
### 2. Use CIDR Notation for Subnets
```typescript
proxyIPs: [
'10.0.0.0/24', // Trust entire subnet
'192.168.1.5', // Trust specific IP
'172.16.0.0/16' // Trust private network
]
```
### 3. Enable Half-Open Only When Needed
```typescript
// For proxy chains, always disable half-open
setupBidirectionalForwarding(client, server, {
enableHalfOpen: false // Ensures proper cascade cleanup
});
```
### 4. Monitor Connection Counts
```typescript
// Regular monitoring prevents connection leaks
setInterval(() => {
const stats = proxy.getStatistics();
console.log(`Active connections: ${stats.activeConnections}`);
if (stats.activeConnections > 1000) {
console.warn('High connection count detected');
}
}, 60000);
```
## Future Enhancements
### Phase 2: PROXY Protocol v1 Parser
```typescript
// Planned implementation
class ProxyProtocolParser {
static parse(buffer: Buffer): ProxyInfo | null {
// Parse "PROXY TCP4 <src-ip> <dst-ip> <src-port> <dst-port>\r\n"
const header = buffer.toString('ascii', 0, 108);
const match = header.match(/^PROXY (TCP4|TCP6) (\S+) (\S+) (\d+) (\d+)\r\n/);
if (match) {
return {
protocol: match[1],
sourceIP: match[2],
destIP: match[3],
sourcePort: parseInt(match[4]),
destPort: parseInt(match[5]),
headerLength: match[0].length
};
}
return null;
}
}
```
### Phase 3: Automatic PROXY Protocol Detection
- Peek at first bytes to detect PROXY protocol signature
- Automatic fallback to direct connection if not present
- Configurable timeout for protocol detection
### Phase 4: PROXY Protocol v2 Support
- Binary protocol format for better performance
- Additional metadata support (TLS info, ALPN, etc.)
- AWS VPC endpoint ID preservation
## Troubleshooting
### Connection Accumulation in Proxy Chains
If connections accumulate when chaining proxies:
1. Verify `enableHalfOpen: false` in socket forwarding
2. Check that both proxies have proper cleanup handlers
3. Monitor with connection count logging
4. Use `test.proxy-chain-simple.node.ts` as reference
### Real Client IP Not Preserved
If the backend sees proxy IP instead of client IP:
1. Verify outer proxy has `sendProxyProtocol: true`
2. Verify inner proxy has outer proxy IP in `proxyIPs` list
3. Check logs for "Connection from trusted proxy" message
4. Ensure PROXY protocol parsing is implemented (currently pending)
### Performance Impact
PROXY protocol adds minimal overhead:
- One-time parsing cost per connection
- Small memory overhead for real client info storage
- No impact on data transfer performance
- Negligible CPU impact for header generation
## Related Documentation
- [Socket Utilities](./ts/core/utils/socket-utils.ts) - Low-level socket handling
- [Connection Manager](./ts/proxies/smart-proxy/connection-manager.ts) - Connection lifecycle
- [Route Handler](./ts/proxies/smart-proxy/route-connection-handler.ts) - Request routing
- [Test Suite](./test/test.wrapped-socket.ts) - WrappedSocket unit tests

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# SmartProxy Routing Architecture Unification Plan
## Overview
This document analyzes the current state of routing in SmartProxy, identifies redundancies and inconsistencies, and proposes a unified architecture.
## Current State Analysis
### 1. Multiple Route Manager Implementations
#### 1.1 Core SharedRouteManager (`ts/core/utils/route-manager.ts`)
- **Purpose**: Designed as a shared component for SmartProxy and NetworkProxy
- **Features**:
- Port mapping and expansion (e.g., `[80, 443]` → individual routes)
- Comprehensive route matching (domain, path, IP, headers, TLS)
- Route validation and conflict detection
- Event emitter for route changes
- Detailed logging support
- **Status**: Well-designed but underutilized
#### 1.2 SmartProxy RouteManager (`ts/proxies/smart-proxy/route-manager.ts`)
- **Purpose**: SmartProxy-specific route management
- **Issues**:
- 95% duplicate code from SharedRouteManager
- Only difference is using `ISmartProxyOptions` instead of generic interface
- Contains deprecated security methods
- Unnecessary code duplication
- **Status**: Should be removed in favor of SharedRouteManager
#### 1.3 HttpProxy Route Management (`ts/proxies/http-proxy/`)
- **Purpose**: HTTP-specific routing
- **Implementation**: Minimal, inline route matching
- **Status**: Could benefit from SharedRouteManager
### 2. Multiple Router Implementations
#### 2.1 ProxyRouter (`ts/routing/router/proxy-router.ts`)
- **Purpose**: Legacy compatibility with `IReverseProxyConfig`
- **Features**: Domain-based routing with path patterns
- **Used by**: HttpProxy for backward compatibility
#### 2.2 RouteRouter (`ts/routing/router/route-router.ts`)
- **Purpose**: Modern routing with `IRouteConfig`
- **Features**: Nearly identical to ProxyRouter
- **Issues**: Code duplication with ProxyRouter
### 3. Scattered Route Utilities
#### 3.1 Core route-utils (`ts/core/utils/route-utils.ts`)
- **Purpose**: Shared matching functions
- **Features**: Domain, path, IP, CIDR matching
- **Status**: Well-implemented, should be the single source
#### 3.2 SmartProxy route-utils (`ts/proxies/smart-proxy/utils/route-utils.ts`)
- **Purpose**: Route configuration utilities
- **Features**: Different scope - config merging, not pattern matching
- **Status**: Keep separate as it serves different purpose
### 4. Other Route-Related Files
- `route-patterns.ts`: Constants for route patterns
- `route-validators.ts`: Route configuration validation
- `route-helpers.ts`: Additional utilities
- `route-connection-handler.ts`: Connection routing logic
## Problems Identified
### 1. Code Duplication
- **SharedRouteManager vs SmartProxy RouteManager**: ~1000 lines of duplicate code
- **ProxyRouter vs RouteRouter**: ~500 lines of duplicate code
- **Matching logic**: Implemented in 4+ different places
### 2. Inconsistent Implementations
```typescript
// Example: Domain matching appears in multiple places
// 1. In route-utils.ts
export function matchDomain(pattern: string, hostname: string): boolean
// 2. In SmartProxy RouteManager
private matchDomain(domain: string, hostname: string): boolean
// 3. In ProxyRouter
private matchesHostname(configName: string, hostname: string): boolean
// 4. In RouteRouter
private matchDomain(pattern: string, hostname: string): boolean
```
### 3. Unclear Separation of Concerns
- Route Managers handle both storage AND matching
- Routers also handle storage AND matching
- No clear boundaries between layers
### 4. Maintenance Burden
- Bug fixes need to be applied in multiple places
- New features must be implemented multiple times
- Testing effort multiplied
## Proposed Unified Architecture
### Layer 1: Core Routing Components
```
ts/core/routing/
├── types.ts # All route-related types
├── utils.ts # All matching logic (consolidated)
├── route-store.ts # Route storage and indexing
└── route-matcher.ts # Route matching engine
```
### Layer 2: Route Management
```
ts/core/routing/
└── route-manager.ts # Single RouteManager for all proxies
- Uses RouteStore for storage
- Uses RouteMatcher for matching
- Provides high-level API
```
### Layer 3: HTTP Routing
```
ts/routing/
└── http-router.ts # Single HTTP router implementation
- Uses RouteManager for route lookup
- Handles HTTP-specific concerns
- Legacy adapter built-in
```
### Layer 4: Proxy Integration
```
ts/proxies/
├── smart-proxy/
│ └── (uses core RouteManager directly)
├── http-proxy/
│ └── (uses core RouteManager + HttpRouter)
└── network-proxy/
└── (uses core RouteManager directly)
```
## Implementation Plan
### Phase 1: Consolidate Matching Logic (Week 1)
1. **Audit all matching implementations**
- Document differences in behavior
- Identify the most comprehensive implementation
- Create test suite covering all edge cases
2. **Create unified matching module**
```typescript
// ts/core/routing/matchers.ts
export class DomainMatcher {
static match(pattern: string, hostname: string): boolean
}
export class PathMatcher {
static match(pattern: string, path: string): MatchResult
}
export class IpMatcher {
static match(pattern: string, ip: string): boolean
static matchCidr(cidr: string, ip: string): boolean
}
```
3. **Update all components to use unified matchers**
- Replace local implementations
- Ensure backward compatibility
- Run comprehensive tests
### Phase 2: Unify Route Managers (Week 2)
1. **Enhance SharedRouteManager**
- Add any missing features from SmartProxy RouteManager
- Make it truly generic (no proxy-specific dependencies)
- Add adapter pattern for different options types
2. **Migrate SmartProxy to use SharedRouteManager**
```typescript
// Before
this.routeManager = new RouteManager(this.settings);
// After
this.routeManager = new SharedRouteManager({
logger: this.settings.logger,
enableDetailedLogging: this.settings.enableDetailedLogging
});
```
3. **Remove duplicate RouteManager**
- Delete `ts/proxies/smart-proxy/route-manager.ts`
- Update all imports
- Verify all tests pass
### Phase 3: Consolidate Routers (Week 3)
1. **Create unified HttpRouter**
```typescript
export class HttpRouter {
constructor(private routeManager: SharedRouteManager) {}
// Modern interface
route(req: IncomingMessage): RouteResult
// Legacy adapter
routeLegacy(config: IReverseProxyConfig): RouteResult
}
```
2. **Migrate HttpProxy**
- Replace both ProxyRouter and RouteRouter
- Use single HttpRouter with appropriate adapter
- Maintain backward compatibility
3. **Clean up legacy code**
- Mark old interfaces as deprecated
- Add migration guides
- Plan removal in next major version
### Phase 4: Architecture Cleanup (Week 4)
1. **Reorganize file structure**
```
ts/core/
├── routing/
│ ├── index.ts
│ ├── types.ts
│ ├── matchers/
│ │ ├── domain.ts
│ │ ├── path.ts
│ │ ├── ip.ts
│ │ └── index.ts
│ ├── route-store.ts
│ ├── route-matcher.ts
│ └── route-manager.ts
└── utils/
└── (remove route-specific utils)
```
2. **Update documentation**
- Architecture diagrams
- Migration guides
- API documentation
3. **Performance optimization**
- Add caching where beneficial
- Optimize hot paths
- Benchmark before/after
## Migration Strategy
### For SmartProxy RouteManager Users
```typescript
// Old way
import { RouteManager } from './route-manager.js';
const manager = new RouteManager(options);
// New way
import { SharedRouteManager as RouteManager } from '../core/utils/route-manager.js';
const manager = new RouteManager({
logger: options.logger,
enableDetailedLogging: options.enableDetailedLogging
});
```
### For Router Users
```typescript
// Old way
const proxyRouter = new ProxyRouter();
const routeRouter = new RouteRouter();
// New way
const router = new HttpRouter(routeManager);
// Automatically handles both modern and legacy configs
```
## Success Metrics
1. **Code Reduction**
- Target: Remove ~1,500 lines of duplicate code
- Measure: Lines of code before/after
2. **Performance**
- Target: No regression in routing performance
- Measure: Benchmark route matching operations
3. **Maintainability**
- Target: Single implementation for each concept
- Measure: Time to implement new features
4. **Test Coverage**
- Target: 100% coverage of routing logic
- Measure: Coverage reports
## Risks and Mitigations
### Risk 1: Breaking Changes
- **Mitigation**: Extensive adapter patterns and backward compatibility layers
- **Testing**: Run all existing tests plus new integration tests
### Risk 2: Performance Regression
- **Mitigation**: Benchmark critical paths before changes
- **Testing**: Load testing with production-like scenarios
### Risk 3: Hidden Dependencies
- **Mitigation**: Careful code analysis and dependency mapping
- **Testing**: Integration tests across all proxy types
## Long-term Vision
### Future Enhancements
1. **Route Caching**: LRU cache for frequently accessed routes
2. **Route Indexing**: Trie-based indexing for faster domain matching
3. **Route Priorities**: Explicit priority system instead of specificity
4. **Dynamic Routes**: Support for runtime route modifications
5. **Route Templates**: Reusable route configurations
### API Evolution
```typescript
// Future unified routing API
const routingEngine = new RoutingEngine({
stores: [fileStore, dbStore, dynamicStore],
matchers: [domainMatcher, pathMatcher, customMatcher],
cache: new LRUCache({ max: 1000 }),
indexes: {
domain: new TrieIndex(),
path: new RadixTree()
}
});
// Simple, powerful API
const route = await routingEngine.findRoute({
domain: 'example.com',
path: '/api/v1/users',
ip: '192.168.1.1',
headers: { 'x-custom': 'value' }
});
```
## Conclusion
The current routing architecture has significant duplication and inconsistencies. By following this unification plan, we can:
1. Reduce code by ~30%
2. Improve maintainability
3. Ensure consistent behavior
4. Enable future enhancements
The phased approach minimizes risk while delivering incremental value. Each phase is independently valuable and can be deployed separately.

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import { tap, expect } from '@git.zone/tstest/tapbundle';
import { DomainMatcher } from '../../../ts/core/routing/matchers/domain.js';
tap.test('DomainMatcher - exact match', async () => {
expect(DomainMatcher.match('example.com', 'example.com')).toEqual(true);
expect(DomainMatcher.match('example.com', 'example.net')).toEqual(false);
expect(DomainMatcher.match('sub.example.com', 'example.com')).toEqual(false);
});
tap.test('DomainMatcher - case insensitive', async () => {
expect(DomainMatcher.match('Example.COM', 'example.com')).toEqual(true);
expect(DomainMatcher.match('example.com', 'EXAMPLE.COM')).toEqual(true);
expect(DomainMatcher.match('ExAmPlE.cOm', 'eXaMpLe.CoM')).toEqual(true);
});
tap.test('DomainMatcher - wildcard matching', async () => {
// Leading wildcard
expect(DomainMatcher.match('*.example.com', 'sub.example.com')).toEqual(true);
expect(DomainMatcher.match('*.example.com', 'deep.sub.example.com')).toEqual(true);
expect(DomainMatcher.match('*.example.com', 'example.com')).toEqual(false);
// Multiple wildcards
expect(DomainMatcher.match('*.*.example.com', 'a.b.example.com')).toEqual(true);
expect(DomainMatcher.match('api.*.example.com', 'api.v1.example.com')).toEqual(true);
// Trailing wildcard
expect(DomainMatcher.match('example.*', 'example.com')).toEqual(true);
expect(DomainMatcher.match('example.*', 'example.net')).toEqual(true);
expect(DomainMatcher.match('example.*', 'example.co.uk')).toEqual(true);
});
tap.test('DomainMatcher - FQDN normalization', async () => {
expect(DomainMatcher.match('example.com.', 'example.com')).toEqual(true);
expect(DomainMatcher.match('example.com', 'example.com.')).toEqual(true);
expect(DomainMatcher.match('example.com.', 'example.com.')).toEqual(true);
});
tap.test('DomainMatcher - edge cases', async () => {
expect(DomainMatcher.match('', 'example.com')).toEqual(false);
expect(DomainMatcher.match('example.com', '')).toEqual(false);
expect(DomainMatcher.match('', '')).toEqual(false);
expect(DomainMatcher.match(null as any, 'example.com')).toEqual(false);
expect(DomainMatcher.match('example.com', null as any)).toEqual(false);
});
tap.test('DomainMatcher - specificity calculation', async () => {
// Exact domains are most specific
const exactScore = DomainMatcher.calculateSpecificity('api.example.com');
const wildcardScore = DomainMatcher.calculateSpecificity('*.example.com');
const leadingWildcardScore = DomainMatcher.calculateSpecificity('*.com');
expect(exactScore).toBeGreaterThan(wildcardScore);
expect(wildcardScore).toBeGreaterThan(leadingWildcardScore);
// More segments = more specific
const threeSegments = DomainMatcher.calculateSpecificity('api.v1.example.com');
const twoSegments = DomainMatcher.calculateSpecificity('example.com');
expect(threeSegments).toBeGreaterThan(twoSegments);
});
tap.test('DomainMatcher - findAllMatches', async () => {
const patterns = [
'example.com',
'*.example.com',
'api.example.com',
'*.api.example.com',
'*'
];
const matches = DomainMatcher.findAllMatches(patterns, 'v1.api.example.com');
// Should match: *.example.com, *.api.example.com, *
expect(matches).toHaveLength(3);
expect(matches[0]).toEqual('*.api.example.com'); // Most specific
expect(matches[1]).toEqual('*.example.com');
expect(matches[2]).toEqual('*'); // Least specific
});
tap.start();

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import { tap, expect } from '@git.zone/tstest/tapbundle';
import { IpMatcher } from '../../../ts/core/routing/matchers/ip.js';
tap.test('IpMatcher - exact match', async () => {
expect(IpMatcher.match('192.168.1.1', '192.168.1.1')).toEqual(true);
expect(IpMatcher.match('192.168.1.1', '192.168.1.2')).toEqual(false);
expect(IpMatcher.match('10.0.0.1', '10.0.0.1')).toEqual(true);
});
tap.test('IpMatcher - CIDR notation', async () => {
// /24 subnet
expect(IpMatcher.match('192.168.1.0/24', '192.168.1.1')).toEqual(true);
expect(IpMatcher.match('192.168.1.0/24', '192.168.1.255')).toEqual(true);
expect(IpMatcher.match('192.168.1.0/24', '192.168.2.1')).toEqual(false);
// /16 subnet
expect(IpMatcher.match('10.0.0.0/16', '10.0.1.1')).toEqual(true);
expect(IpMatcher.match('10.0.0.0/16', '10.0.255.255')).toEqual(true);
expect(IpMatcher.match('10.0.0.0/16', '10.1.0.1')).toEqual(false);
// /32 (single host)
expect(IpMatcher.match('192.168.1.1/32', '192.168.1.1')).toEqual(true);
expect(IpMatcher.match('192.168.1.1/32', '192.168.1.2')).toEqual(false);
});
tap.test('IpMatcher - wildcard matching', async () => {
expect(IpMatcher.match('192.168.1.*', '192.168.1.1')).toEqual(true);
expect(IpMatcher.match('192.168.1.*', '192.168.1.255')).toEqual(true);
expect(IpMatcher.match('192.168.1.*', '192.168.2.1')).toEqual(false);
expect(IpMatcher.match('192.168.*.*', '192.168.0.1')).toEqual(true);
expect(IpMatcher.match('192.168.*.*', '192.168.255.255')).toEqual(true);
expect(IpMatcher.match('192.168.*.*', '192.169.0.1')).toEqual(false);
expect(IpMatcher.match('*.*.*.*', '1.2.3.4')).toEqual(true);
expect(IpMatcher.match('*.*.*.*', '255.255.255.255')).toEqual(true);
});
tap.test('IpMatcher - range matching', async () => {
expect(IpMatcher.match('192.168.1.1-192.168.1.10', '192.168.1.1')).toEqual(true);
expect(IpMatcher.match('192.168.1.1-192.168.1.10', '192.168.1.5')).toEqual(true);
expect(IpMatcher.match('192.168.1.1-192.168.1.10', '192.168.1.10')).toEqual(true);
expect(IpMatcher.match('192.168.1.1-192.168.1.10', '192.168.1.11')).toEqual(false);
expect(IpMatcher.match('192.168.1.1-192.168.1.10', '192.168.1.0')).toEqual(false);
});
tap.test('IpMatcher - IPv6-mapped IPv4', async () => {
expect(IpMatcher.match('192.168.1.1', '::ffff:192.168.1.1')).toEqual(true);
expect(IpMatcher.match('192.168.1.0/24', '::ffff:192.168.1.100')).toEqual(true);
expect(IpMatcher.match('192.168.1.*', '::FFFF:192.168.1.50')).toEqual(true);
});
tap.test('IpMatcher - IP validation', async () => {
expect(IpMatcher.isValidIpv4('192.168.1.1')).toEqual(true);
expect(IpMatcher.isValidIpv4('255.255.255.255')).toEqual(true);
expect(IpMatcher.isValidIpv4('0.0.0.0')).toEqual(true);
expect(IpMatcher.isValidIpv4('256.1.1.1')).toEqual(false);
expect(IpMatcher.isValidIpv4('1.1.1')).toEqual(false);
expect(IpMatcher.isValidIpv4('1.1.1.1.1')).toEqual(false);
expect(IpMatcher.isValidIpv4('1.1.1.a')).toEqual(false);
expect(IpMatcher.isValidIpv4('01.1.1.1')).toEqual(false); // No leading zeros
});
tap.test('IpMatcher - isAuthorized', async () => {
// Empty lists - allow all
expect(IpMatcher.isAuthorized('192.168.1.1')).toEqual(true);
// Allow list only
const allowList = ['192.168.1.0/24', '10.0.0.0/16'];
expect(IpMatcher.isAuthorized('192.168.1.100', allowList)).toEqual(true);
expect(IpMatcher.isAuthorized('10.0.50.1', allowList)).toEqual(true);
expect(IpMatcher.isAuthorized('172.16.0.1', allowList)).toEqual(false);
// Block list only
const blockList = ['192.168.1.100', '10.0.0.0/24'];
expect(IpMatcher.isAuthorized('192.168.1.100', [], blockList)).toEqual(false);
expect(IpMatcher.isAuthorized('10.0.0.50', [], blockList)).toEqual(false);
expect(IpMatcher.isAuthorized('192.168.1.101', [], blockList)).toEqual(true);
// Both lists - block takes precedence
expect(IpMatcher.isAuthorized('192.168.1.100', allowList, ['192.168.1.100'])).toEqual(false);
});
tap.test('IpMatcher - specificity calculation', async () => {
// Exact IPs are most specific
const exactScore = IpMatcher.calculateSpecificity('192.168.1.1');
const cidr32Score = IpMatcher.calculateSpecificity('192.168.1.1/32');
const cidr24Score = IpMatcher.calculateSpecificity('192.168.1.0/24');
const cidr16Score = IpMatcher.calculateSpecificity('192.168.0.0/16');
const wildcardScore = IpMatcher.calculateSpecificity('192.168.1.*');
const rangeScore = IpMatcher.calculateSpecificity('192.168.1.1-192.168.1.10');
expect(exactScore).toBeGreaterThan(cidr24Score);
expect(cidr32Score).toBeGreaterThan(cidr24Score);
expect(cidr24Score).toBeGreaterThan(cidr16Score);
expect(rangeScore).toBeGreaterThan(wildcardScore);
});
tap.test('IpMatcher - edge cases', async () => {
// Empty/null inputs
expect(IpMatcher.match('', '192.168.1.1')).toEqual(false);
expect(IpMatcher.match('192.168.1.1', '')).toEqual(false);
expect(IpMatcher.match(null as any, '192.168.1.1')).toEqual(false);
expect(IpMatcher.match('192.168.1.1', null as any)).toEqual(false);
// Invalid CIDR
expect(IpMatcher.match('192.168.1.0/33', '192.168.1.1')).toEqual(false);
expect(IpMatcher.match('192.168.1.0/-1', '192.168.1.1')).toEqual(false);
expect(IpMatcher.match('192.168.1.0/', '192.168.1.1')).toEqual(false);
// Invalid ranges
expect(IpMatcher.match('192.168.1.10-192.168.1.1', '192.168.1.5')).toEqual(false); // Start > end
expect(IpMatcher.match('192.168.1.1-', '192.168.1.5')).toEqual(false);
expect(IpMatcher.match('-192.168.1.10', '192.168.1.5')).toEqual(false);
});
tap.start();

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import { tap, expect } from '@git.zone/tstest/tapbundle';
import { PathMatcher } from '../../../ts/core/routing/matchers/path.js';
tap.test('PathMatcher - exact match', async () => {
const result = PathMatcher.match('/api/users', '/api/users');
expect(result.matches).toEqual(true);
expect(result.pathMatch).toEqual('/api/users');
expect(result.pathRemainder).toEqual('');
expect(result.params).toEqual({});
});
tap.test('PathMatcher - no match', async () => {
const result = PathMatcher.match('/api/users', '/api/posts');
expect(result.matches).toEqual(false);
});
tap.test('PathMatcher - parameter extraction', async () => {
const result = PathMatcher.match('/users/:id/profile', '/users/123/profile');
expect(result.matches).toEqual(true);
expect(result.params).toEqual({ id: '123' });
expect(result.pathMatch).toEqual('/users/123/profile');
expect(result.pathRemainder).toEqual('');
});
tap.test('PathMatcher - multiple parameters', async () => {
const result = PathMatcher.match('/api/:version/users/:id', '/api/v2/users/456');
expect(result.matches).toEqual(true);
expect(result.params).toEqual({ version: 'v2', id: '456' });
});
tap.test('PathMatcher - wildcard matching', async () => {
const result = PathMatcher.match('/api/*', '/api/users/123/profile');
expect(result.matches).toEqual(true);
expect(result.pathMatch).toEqual('/api'); // Normalized without trailing slash
expect(result.pathRemainder).toEqual('users/123/profile');
});
tap.test('PathMatcher - mixed parameters and wildcards', async () => {
const result = PathMatcher.match('/api/:version/*', '/api/v1/users/123');
expect(result.matches).toEqual(true);
expect(result.params).toEqual({ version: 'v1' });
expect(result.pathRemainder).toEqual('users/123');
});
tap.test('PathMatcher - trailing slash normalization', async () => {
// Both with trailing slash
let result = PathMatcher.match('/api/users/', '/api/users/');
expect(result.matches).toEqual(true);
// Pattern with, path without
result = PathMatcher.match('/api/users/', '/api/users');
expect(result.matches).toEqual(true);
// Pattern without, path with
result = PathMatcher.match('/api/users', '/api/users/');
expect(result.matches).toEqual(true);
});
tap.test('PathMatcher - root path handling', async () => {
const result = PathMatcher.match('/', '/');
expect(result.matches).toEqual(true);
expect(result.pathMatch).toEqual('/');
expect(result.pathRemainder).toEqual('');
});
tap.test('PathMatcher - specificity calculation', async () => {
// Exact paths are most specific
const exactScore = PathMatcher.calculateSpecificity('/api/v1/users');
const paramScore = PathMatcher.calculateSpecificity('/api/:version/users');
const wildcardScore = PathMatcher.calculateSpecificity('/api/*');
expect(exactScore).toBeGreaterThan(paramScore);
expect(paramScore).toBeGreaterThan(wildcardScore);
// More segments = more specific
const deepPath = PathMatcher.calculateSpecificity('/api/v1/users/profile/settings');
const shallowPath = PathMatcher.calculateSpecificity('/api/users');
expect(deepPath).toBeGreaterThan(shallowPath);
// More static segments = more specific
const moreStatic = PathMatcher.calculateSpecificity('/api/v1/users/:id');
const lessStatic = PathMatcher.calculateSpecificity('/api/:version/:resource/:id');
expect(moreStatic).toBeGreaterThan(lessStatic);
});
tap.test('PathMatcher - findAllMatches', async () => {
const patterns = [
'/api/users',
'/api/users/:id',
'/api/users/:id/profile',
'/api/*',
'/*'
];
const matches = PathMatcher.findAllMatches(patterns, '/api/users/123/profile');
// With the stricter path matching, /api/users won't match /api/users/123/profile
// Only patterns with wildcards, parameters, or exact matches will work
expect(matches).toHaveLength(4);
// Verify all expected patterns are in the results
const matchedPatterns = matches.map(m => m.pattern);
expect(matchedPatterns).not.toContain('/api/users'); // This won't match anymore (no prefix matching)
expect(matchedPatterns).toContain('/api/users/:id');
expect(matchedPatterns).toContain('/api/users/:id/profile');
expect(matchedPatterns).toContain('/api/*');
expect(matchedPatterns).toContain('/*');
// Verify parameters were extracted correctly for parameterized patterns
const paramsById = matches.find(m => m.pattern === '/api/users/:id');
const paramsByIdProfile = matches.find(m => m.pattern === '/api/users/:id/profile');
expect(paramsById?.result.params).toEqual({ id: '123' });
expect(paramsByIdProfile?.result.params).toEqual({ id: '123' });
});
tap.test('PathMatcher - edge cases', async () => {
// Empty patterns
expect(PathMatcher.match('', '/api/users').matches).toEqual(false);
expect(PathMatcher.match('/api/users', '').matches).toEqual(false);
expect(PathMatcher.match('', '').matches).toEqual(false);
// Null/undefined
expect(PathMatcher.match(null as any, '/api/users').matches).toEqual(false);
expect(PathMatcher.match('/api/users', null as any).matches).toEqual(false);
});
tap.start();

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import { tap, expect } from '@git.zone/tstest/tapbundle';
import {
delay,
retryWithBackoff,
withTimeout,
parallelLimit,
debounceAsync,
AsyncMutex,
CircuitBreaker
} from '../../../ts/core/utils/async-utils.js';
tap.test('delay should pause execution for specified milliseconds', async () => {
const startTime = Date.now();
await delay(100);
const elapsed = Date.now() - startTime;
// Allow some tolerance for timing
expect(elapsed).toBeGreaterThan(90);
expect(elapsed).toBeLessThan(150);
});
tap.test('retryWithBackoff should retry failed operations', async () => {
let attempts = 0;
const operation = async () => {
attempts++;
if (attempts < 3) {
throw new Error('Test error');
}
return 'success';
};
const result = await retryWithBackoff(operation, {
maxAttempts: 3,
initialDelay: 10
});
expect(result).toEqual('success');
expect(attempts).toEqual(3);
});
tap.test('retryWithBackoff should throw after max attempts', async () => {
let attempts = 0;
const operation = async () => {
attempts++;
throw new Error('Always fails');
};
let error: Error | null = null;
try {
await retryWithBackoff(operation, {
maxAttempts: 2,
initialDelay: 10
});
} catch (e: any) {
error = e;
}
expect(error).not.toBeNull();
expect(error?.message).toEqual('Always fails');
expect(attempts).toEqual(2);
});
tap.test('withTimeout should complete operations within timeout', async () => {
const operation = async () => {
await delay(50);
return 'completed';
};
const result = await withTimeout(operation, 100);
expect(result).toEqual('completed');
});
tap.test('withTimeout should throw on timeout', async () => {
const operation = async () => {
await delay(200);
return 'never happens';
};
let error: Error | null = null;
try {
await withTimeout(operation, 50);
} catch (e: any) {
error = e;
}
expect(error).not.toBeNull();
expect(error?.message).toContain('timed out');
});
tap.test('parallelLimit should respect concurrency limit', async () => {
let concurrent = 0;
let maxConcurrent = 0;
const items = [1, 2, 3, 4, 5, 6];
const operation = async (item: number) => {
concurrent++;
maxConcurrent = Math.max(maxConcurrent, concurrent);
await delay(50);
concurrent--;
return item * 2;
};
const results = await parallelLimit(items, operation, 2);
expect(results).toEqual([2, 4, 6, 8, 10, 12]);
expect(maxConcurrent).toBeLessThan(3);
expect(maxConcurrent).toBeGreaterThan(0);
});
tap.test('debounceAsync should debounce function calls', async () => {
let callCount = 0;
const fn = async (value: string) => {
callCount++;
return value;
};
const debounced = debounceAsync(fn, 50);
// Make multiple calls quickly
debounced('a');
debounced('b');
debounced('c');
const result = await debounced('d');
// Wait a bit to ensure no more calls
await delay(100);
expect(result).toEqual('d');
expect(callCount).toEqual(1); // Only the last call should execute
});
tap.test('AsyncMutex should ensure exclusive access', async () => {
const mutex = new AsyncMutex();
const results: number[] = [];
const operation = async (value: number) => {
await mutex.runExclusive(async () => {
results.push(value);
await delay(10);
results.push(value * 10);
});
};
// Run operations concurrently
await Promise.all([
operation(1),
operation(2),
operation(3)
]);
// Results should show sequential execution
expect(results).toEqual([1, 10, 2, 20, 3, 30]);
});
tap.test('CircuitBreaker should open after failures', async () => {
const breaker = new CircuitBreaker({
failureThreshold: 2,
resetTimeout: 100
});
let attempt = 0;
const failingOperation = async () => {
attempt++;
throw new Error('Test failure');
};
// First two failures
for (let i = 0; i < 2; i++) {
try {
await breaker.execute(failingOperation);
} catch (e) {
// Expected
}
}
expect(breaker.isOpen()).toBeTrue();
// Next attempt should fail immediately
let error: Error | null = null;
try {
await breaker.execute(failingOperation);
} catch (e: any) {
error = e;
}
expect(error?.message).toEqual('Circuit breaker is open');
expect(attempt).toEqual(2); // Operation not called when circuit is open
// Wait for reset timeout
await delay(150);
// Circuit should be half-open now, allowing one attempt
const successOperation = async () => 'success';
const result = await breaker.execute(successOperation);
expect(result).toEqual('success');
expect(breaker.getState()).toEqual('closed');
});
tap.start();

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import { tap, expect } from '@git.zone/tstest/tapbundle';
import { BinaryHeap } from '../../../ts/core/utils/binary-heap.js';
interface TestItem {
id: string;
priority: number;
value: string;
}
tap.test('should create empty heap', async () => {
const heap = new BinaryHeap<number>((a, b) => a - b);
expect(heap.size).toEqual(0);
expect(heap.isEmpty()).toBeTrue();
expect(heap.peek()).toBeUndefined();
});
tap.test('should insert and extract in correct order', async () => {
const heap = new BinaryHeap<number>((a, b) => a - b);
heap.insert(5);
heap.insert(3);
heap.insert(7);
heap.insert(1);
heap.insert(9);
heap.insert(4);
expect(heap.size).toEqual(6);
// Extract in ascending order
expect(heap.extract()).toEqual(1);
expect(heap.extract()).toEqual(3);
expect(heap.extract()).toEqual(4);
expect(heap.extract()).toEqual(5);
expect(heap.extract()).toEqual(7);
expect(heap.extract()).toEqual(9);
expect(heap.extract()).toBeUndefined();
});
tap.test('should work with custom objects and comparator', async () => {
const heap = new BinaryHeap<TestItem>(
(a, b) => a.priority - b.priority,
(item) => item.id
);
heap.insert({ id: 'a', priority: 5, value: 'five' });
heap.insert({ id: 'b', priority: 2, value: 'two' });
heap.insert({ id: 'c', priority: 8, value: 'eight' });
heap.insert({ id: 'd', priority: 1, value: 'one' });
const first = heap.extract();
expect(first?.priority).toEqual(1);
expect(first?.value).toEqual('one');
const second = heap.extract();
expect(second?.priority).toEqual(2);
expect(second?.value).toEqual('two');
});
tap.test('should support reverse order (max heap)', async () => {
const heap = new BinaryHeap<number>((a, b) => b - a);
heap.insert(5);
heap.insert(3);
heap.insert(7);
heap.insert(1);
heap.insert(9);
// Extract in descending order
expect(heap.extract()).toEqual(9);
expect(heap.extract()).toEqual(7);
expect(heap.extract()).toEqual(5);
});
tap.test('should extract by predicate', async () => {
const heap = new BinaryHeap<TestItem>((a, b) => a.priority - b.priority);
heap.insert({ id: 'a', priority: 5, value: 'five' });
heap.insert({ id: 'b', priority: 2, value: 'two' });
heap.insert({ id: 'c', priority: 8, value: 'eight' });
const extracted = heap.extractIf(item => item.id === 'b');
expect(extracted?.id).toEqual('b');
expect(heap.size).toEqual(2);
// Should not find it again
const notFound = heap.extractIf(item => item.id === 'b');
expect(notFound).toBeUndefined();
});
tap.test('should extract by key', async () => {
const heap = new BinaryHeap<TestItem>(
(a, b) => a.priority - b.priority,
(item) => item.id
);
heap.insert({ id: 'a', priority: 5, value: 'five' });
heap.insert({ id: 'b', priority: 2, value: 'two' });
heap.insert({ id: 'c', priority: 8, value: 'eight' });
expect(heap.hasKey('b')).toBeTrue();
const extracted = heap.extractByKey('b');
expect(extracted?.id).toEqual('b');
expect(heap.size).toEqual(2);
expect(heap.hasKey('b')).toBeFalse();
// Should not find it again
const notFound = heap.extractByKey('b');
expect(notFound).toBeUndefined();
});
tap.test('should throw when using key operations without extractKey', async () => {
const heap = new BinaryHeap<TestItem>((a, b) => a.priority - b.priority);
heap.insert({ id: 'a', priority: 5, value: 'five' });
let error: Error | null = null;
try {
heap.extractByKey('a');
} catch (e: any) {
error = e;
}
expect(error).not.toBeNull();
expect(error?.message).toContain('extractKey function must be provided');
});
tap.test('should handle duplicates correctly', async () => {
const heap = new BinaryHeap<number>((a, b) => a - b);
heap.insert(5);
heap.insert(5);
heap.insert(5);
heap.insert(3);
heap.insert(7);
expect(heap.size).toEqual(5);
expect(heap.extract()).toEqual(3);
expect(heap.extract()).toEqual(5);
expect(heap.extract()).toEqual(5);
expect(heap.extract()).toEqual(5);
expect(heap.extract()).toEqual(7);
});
tap.test('should convert to array without modifying heap', async () => {
const heap = new BinaryHeap<number>((a, b) => a - b);
heap.insert(5);
heap.insert(3);
heap.insert(7);
const array = heap.toArray();
expect(array).toContain(3);
expect(array).toContain(5);
expect(array).toContain(7);
expect(array.length).toEqual(3);
// Heap should still be intact
expect(heap.size).toEqual(3);
expect(heap.extract()).toEqual(3);
});
tap.test('should clear the heap', async () => {
const heap = new BinaryHeap<TestItem>(
(a, b) => a.priority - b.priority,
(item) => item.id
);
heap.insert({ id: 'a', priority: 5, value: 'five' });
heap.insert({ id: 'b', priority: 2, value: 'two' });
expect(heap.size).toEqual(2);
expect(heap.hasKey('a')).toBeTrue();
heap.clear();
expect(heap.size).toEqual(0);
expect(heap.isEmpty()).toBeTrue();
expect(heap.hasKey('a')).toBeFalse();
});
tap.test('should handle complex extraction patterns', async () => {
const heap = new BinaryHeap<number>((a, b) => a - b);
// Insert numbers 1-10 in random order
[8, 3, 5, 9, 1, 7, 4, 10, 2, 6].forEach(n => heap.insert(n));
// Extract some in order
expect(heap.extract()).toEqual(1);
expect(heap.extract()).toEqual(2);
// Insert more
heap.insert(0);
heap.insert(1.5);
// Continue extracting
expect(heap.extract()).toEqual(0);
expect(heap.extract()).toEqual(1.5);
expect(heap.extract()).toEqual(3);
// Verify remaining size (10 - 2 extracted + 2 inserted - 3 extracted = 7)
expect(heap.size).toEqual(7);
});
tap.start();

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import { expect, tap } from '@git.zone/tstest/tapbundle';
import {
EventSystem,
ProxyEvents,
ComponentType
} from '../../../ts/core/utils/event-system.js';
// Setup function for creating a new event system
function setupEventSystem(): { eventSystem: EventSystem, receivedEvents: any[] } {
const eventSystem = new EventSystem(ComponentType.SMART_PROXY, 'test-id');
const receivedEvents: any[] = [];
return { eventSystem, receivedEvents };
}
tap.test('Event System - certificate events with correct structure', async () => {
const { eventSystem, receivedEvents } = setupEventSystem();
// Set up listeners
eventSystem.on(ProxyEvents.CERTIFICATE_ISSUED, (data) => {
receivedEvents.push({
type: 'issued',
data
});
});
eventSystem.on(ProxyEvents.CERTIFICATE_RENEWED, (data) => {
receivedEvents.push({
type: 'renewed',
data
});
});
// Emit events
eventSystem.emitCertificateIssued({
domain: 'example.com',
certificate: 'cert-content',
privateKey: 'key-content',
expiryDate: new Date('2025-01-01')
});
eventSystem.emitCertificateRenewed({
domain: 'example.com',
certificate: 'new-cert-content',
privateKey: 'new-key-content',
expiryDate: new Date('2026-01-01'),
isRenewal: true
});
// Verify events
expect(receivedEvents.length).toEqual(2);
// Check issuance event
expect(receivedEvents[0].type).toEqual('issued');
expect(receivedEvents[0].data.domain).toEqual('example.com');
expect(receivedEvents[0].data.certificate).toEqual('cert-content');
expect(receivedEvents[0].data.componentType).toEqual(ComponentType.SMART_PROXY);
expect(receivedEvents[0].data.componentId).toEqual('test-id');
expect(typeof receivedEvents[0].data.timestamp).toEqual('number');
// Check renewal event
expect(receivedEvents[1].type).toEqual('renewed');
expect(receivedEvents[1].data.domain).toEqual('example.com');
expect(receivedEvents[1].data.isRenewal).toEqual(true);
expect(receivedEvents[1].data.expiryDate).toEqual(new Date('2026-01-01'));
});
tap.test('Event System - component lifecycle events', async () => {
const { eventSystem, receivedEvents } = setupEventSystem();
// Set up listeners
eventSystem.on(ProxyEvents.COMPONENT_STARTED, (data) => {
receivedEvents.push({
type: 'started',
data
});
});
eventSystem.on(ProxyEvents.COMPONENT_STOPPED, (data) => {
receivedEvents.push({
type: 'stopped',
data
});
});
// Emit events
eventSystem.emitComponentStarted('TestComponent', '1.0.0');
eventSystem.emitComponentStopped('TestComponent');
// Verify events
expect(receivedEvents.length).toEqual(2);
// Check started event
expect(receivedEvents[0].type).toEqual('started');
expect(receivedEvents[0].data.name).toEqual('TestComponent');
expect(receivedEvents[0].data.version).toEqual('1.0.0');
// Check stopped event
expect(receivedEvents[1].type).toEqual('stopped');
expect(receivedEvents[1].data.name).toEqual('TestComponent');
});
tap.test('Event System - connection events', async () => {
const { eventSystem, receivedEvents } = setupEventSystem();
// Set up listeners
eventSystem.on(ProxyEvents.CONNECTION_ESTABLISHED, (data) => {
receivedEvents.push({
type: 'established',
data
});
});
eventSystem.on(ProxyEvents.CONNECTION_CLOSED, (data) => {
receivedEvents.push({
type: 'closed',
data
});
});
// Emit events
eventSystem.emitConnectionEstablished({
connectionId: 'conn-123',
clientIp: '192.168.1.1',
port: 443,
isTls: true,
domain: 'example.com'
});
eventSystem.emitConnectionClosed({
connectionId: 'conn-123',
clientIp: '192.168.1.1',
port: 443
});
// Verify events
expect(receivedEvents.length).toEqual(2);
// Check established event
expect(receivedEvents[0].type).toEqual('established');
expect(receivedEvents[0].data.connectionId).toEqual('conn-123');
expect(receivedEvents[0].data.clientIp).toEqual('192.168.1.1');
expect(receivedEvents[0].data.port).toEqual(443);
expect(receivedEvents[0].data.isTls).toEqual(true);
// Check closed event
expect(receivedEvents[1].type).toEqual('closed');
expect(receivedEvents[1].data.connectionId).toEqual('conn-123');
});
tap.test('Event System - once and off subscription methods', async () => {
const { eventSystem, receivedEvents } = setupEventSystem();
// Set up a listener that should fire only once
eventSystem.once(ProxyEvents.CONNECTION_ESTABLISHED, (data) => {
receivedEvents.push({
type: 'once',
data
});
});
// Set up a persistent listener
const persistentHandler = (data: any) => {
receivedEvents.push({
type: 'persistent',
data
});
};
eventSystem.on(ProxyEvents.CONNECTION_ESTABLISHED, persistentHandler);
// First event should trigger both listeners
eventSystem.emitConnectionEstablished({
connectionId: 'conn-1',
clientIp: '192.168.1.1',
port: 443
});
// Second event should only trigger the persistent listener
eventSystem.emitConnectionEstablished({
connectionId: 'conn-2',
clientIp: '192.168.1.1',
port: 443
});
// Unsubscribe the persistent listener
eventSystem.off(ProxyEvents.CONNECTION_ESTABLISHED, persistentHandler);
// Third event should not trigger any listeners
eventSystem.emitConnectionEstablished({
connectionId: 'conn-3',
clientIp: '192.168.1.1',
port: 443
});
// Verify events
expect(receivedEvents.length).toEqual(3);
expect(receivedEvents[0].type).toEqual('once');
expect(receivedEvents[0].data.connectionId).toEqual('conn-1');
expect(receivedEvents[1].type).toEqual('persistent');
expect(receivedEvents[1].data.connectionId).toEqual('conn-1');
expect(receivedEvents[2].type).toEqual('persistent');
expect(receivedEvents[2].data.connectionId).toEqual('conn-2');
});
export default tap.start();

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import { tap, expect } from '@git.zone/tstest/tapbundle';
import * as path from 'path';
import { AsyncFileSystem } from '../../../ts/core/utils/fs-utils.js';
// Use a temporary directory for tests
const testDir = path.join(process.cwd(), '.nogit', 'test-fs-utils');
const testFile = path.join(testDir, 'test.txt');
const testJsonFile = path.join(testDir, 'test.json');
tap.test('should create and check directory existence', async () => {
// Ensure directory
await AsyncFileSystem.ensureDir(testDir);
// Check it exists
const exists = await AsyncFileSystem.exists(testDir);
expect(exists).toBeTrue();
// Check it's a directory
const isDir = await AsyncFileSystem.isDirectory(testDir);
expect(isDir).toBeTrue();
});
tap.test('should write and read text files', async () => {
const testContent = 'Hello, async filesystem!';
// Write file
await AsyncFileSystem.writeFile(testFile, testContent);
// Check file exists
const exists = await AsyncFileSystem.exists(testFile);
expect(exists).toBeTrue();
// Read file
const content = await AsyncFileSystem.readFile(testFile);
expect(content).toEqual(testContent);
// Check it's a file
const isFile = await AsyncFileSystem.isFile(testFile);
expect(isFile).toBeTrue();
});
tap.test('should write and read JSON files', async () => {
const testData = {
name: 'Test',
value: 42,
nested: {
array: [1, 2, 3]
}
};
// Write JSON
await AsyncFileSystem.writeJSON(testJsonFile, testData);
// Read JSON
const readData = await AsyncFileSystem.readJSON(testJsonFile);
expect(readData).toEqual(testData);
});
tap.test('should copy files', async () => {
const copyFile = path.join(testDir, 'copy.txt');
// Copy file
await AsyncFileSystem.copyFile(testFile, copyFile);
// Check copy exists
const exists = await AsyncFileSystem.exists(copyFile);
expect(exists).toBeTrue();
// Check content matches
const content = await AsyncFileSystem.readFile(copyFile);
const originalContent = await AsyncFileSystem.readFile(testFile);
expect(content).toEqual(originalContent);
});
tap.test('should move files', async () => {
const moveFile = path.join(testDir, 'moved.txt');
const copyFile = path.join(testDir, 'copy.txt');
// Move file
await AsyncFileSystem.moveFile(copyFile, moveFile);
// Check moved file exists
const movedExists = await AsyncFileSystem.exists(moveFile);
expect(movedExists).toBeTrue();
// Check original doesn't exist
const originalExists = await AsyncFileSystem.exists(copyFile);
expect(originalExists).toBeFalse();
});
tap.test('should list files in directory', async () => {
const files = await AsyncFileSystem.listFiles(testDir);
expect(files).toContain('test.txt');
expect(files).toContain('test.json');
expect(files).toContain('moved.txt');
});
tap.test('should list files with full paths', async () => {
const files = await AsyncFileSystem.listFilesFullPath(testDir);
const fileNames = files.map(f => path.basename(f));
expect(fileNames).toContain('test.txt');
expect(fileNames).toContain('test.json');
// All paths should be absolute
files.forEach(file => {
expect(path.isAbsolute(file)).toBeTrue();
});
});
tap.test('should get file stats', async () => {
const stats = await AsyncFileSystem.getStats(testFile);
expect(stats).not.toBeNull();
expect(stats?.isFile()).toBeTrue();
expect(stats?.size).toBeGreaterThan(0);
});
tap.test('should handle non-existent files gracefully', async () => {
const nonExistent = path.join(testDir, 'does-not-exist.txt');
// Check existence
const exists = await AsyncFileSystem.exists(nonExistent);
expect(exists).toBeFalse();
// Get stats should return null
const stats = await AsyncFileSystem.getStats(nonExistent);
expect(stats).toBeNull();
// Remove should not throw
await AsyncFileSystem.remove(nonExistent);
});
tap.test('should remove files', async () => {
// Remove a file
await AsyncFileSystem.remove(testFile);
// Check it's gone
const exists = await AsyncFileSystem.exists(testFile);
expect(exists).toBeFalse();
});
tap.test('should ensure file exists', async () => {
const ensureFile = path.join(testDir, 'ensure.txt');
// Ensure file
await AsyncFileSystem.ensureFile(ensureFile);
// Check it exists
const exists = await AsyncFileSystem.exists(ensureFile);
expect(exists).toBeTrue();
// Check it's empty
const content = await AsyncFileSystem.readFile(ensureFile);
expect(content).toEqual('');
});
tap.test('should recursively list files', async () => {
// Create subdirectory with file
const subDir = path.join(testDir, 'subdir');
const subFile = path.join(subDir, 'nested.txt');
await AsyncFileSystem.ensureDir(subDir);
await AsyncFileSystem.writeFile(subFile, 'nested content');
// List recursively
const files = await AsyncFileSystem.listFilesRecursive(testDir);
// Should include files from subdirectory
const fileNames = files.map(f => path.relative(testDir, f));
expect(fileNames).toContain('test.json');
expect(fileNames).toContain(path.join('subdir', 'nested.txt'));
});
tap.test('should clean up test directory', async () => {
// Remove entire test directory
await AsyncFileSystem.removeDir(testDir);
// Check it's gone
const exists = await AsyncFileSystem.exists(testDir);
expect(exists).toBeFalse();
});
tap.start();

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import { tap, expect } from '@git.zone/tstest/tapbundle';
import { LifecycleComponent } from '../../../ts/core/utils/lifecycle-component.js';
import { EventEmitter } from 'events';
// Test implementation of LifecycleComponent
class TestComponent extends LifecycleComponent {
public timerCallCount = 0;
public intervalCallCount = 0;
public cleanupCalled = false;
public testEmitter = new EventEmitter();
public listenerCallCount = 0;
constructor() {
super();
this.setupTimers();
this.setupListeners();
}
private setupTimers() {
// Set up a timeout
this.setTimeout(() => {
this.timerCallCount++;
}, 100);
// Set up an interval
this.setInterval(() => {
this.intervalCallCount++;
}, 50);
}
private setupListeners() {
this.addEventListener(this.testEmitter, 'test-event', () => {
this.listenerCallCount++;
});
}
protected async onCleanup(): Promise<void> {
this.cleanupCalled = true;
}
// Expose protected methods for testing
public testSetTimeout(handler: Function, timeout: number): NodeJS.Timeout {
return this.setTimeout(handler, timeout);
}
public testSetInterval(handler: Function, interval: number): NodeJS.Timeout {
return this.setInterval(handler, interval);
}
public testClearTimeout(timer: NodeJS.Timeout): void {
return this.clearTimeout(timer);
}
public testClearInterval(timer: NodeJS.Timeout): void {
return this.clearInterval(timer);
}
public testAddEventListener(target: any, event: string, handler: Function, options?: { once?: boolean }): void {
return this.addEventListener(target, event, handler, options);
}
public testIsShuttingDown(): boolean {
return this.isShuttingDownState();
}
}
tap.test('should manage timers properly', async () => {
const component = new TestComponent();
// Wait for timers to fire
await new Promise(resolve => setTimeout(resolve, 200));
expect(component.timerCallCount).toEqual(1);
expect(component.intervalCallCount).toBeGreaterThan(2);
await component.cleanup();
});
tap.test('should manage event listeners properly', async () => {
const component = new TestComponent();
// Emit events
component.testEmitter.emit('test-event');
component.testEmitter.emit('test-event');
expect(component.listenerCallCount).toEqual(2);
// Cleanup and verify listeners are removed
await component.cleanup();
component.testEmitter.emit('test-event');
expect(component.listenerCallCount).toEqual(2); // Should not increase
});
tap.test('should prevent timer execution after cleanup', async () => {
const component = new TestComponent();
let laterCallCount = 0;
component.testSetTimeout(() => {
laterCallCount++;
}, 100);
// Cleanup immediately
await component.cleanup();
// Wait for timer that would have fired
await new Promise(resolve => setTimeout(resolve, 150));
expect(laterCallCount).toEqual(0);
});
tap.test('should handle child components', async () => {
class ParentComponent extends LifecycleComponent {
public child: TestComponent;
constructor() {
super();
this.child = new TestComponent();
this.registerChildComponent(this.child);
}
}
const parent = new ParentComponent();
// Wait for child timers
await new Promise(resolve => setTimeout(resolve, 100));
expect(parent.child.timerCallCount).toEqual(1);
// Cleanup parent should cleanup child
await parent.cleanup();
expect(parent.child.cleanupCalled).toBeTrue();
expect(parent.child.testIsShuttingDown()).toBeTrue();
});
tap.test('should handle multiple cleanup calls gracefully', async () => {
const component = new TestComponent();
// Call cleanup multiple times
const promises = [
component.cleanup(),
component.cleanup(),
component.cleanup()
];
await Promise.all(promises);
// Should only clean up once
expect(component.cleanupCalled).toBeTrue();
});
tap.test('should clear specific timers', async () => {
const component = new TestComponent();
let callCount = 0;
const timer = component.testSetTimeout(() => {
callCount++;
}, 100);
// Clear the timer
component.testClearTimeout(timer);
// Wait and verify it didn't fire
await new Promise(resolve => setTimeout(resolve, 150));
expect(callCount).toEqual(0);
await component.cleanup();
});
tap.test('should clear specific intervals', async () => {
const component = new TestComponent();
let callCount = 0;
const interval = component.testSetInterval(() => {
callCount++;
}, 50);
// Let it run a bit
await new Promise(resolve => setTimeout(resolve, 120));
const countBeforeClear = callCount;
expect(countBeforeClear).toBeGreaterThan(1);
// Clear the interval
component.testClearInterval(interval);
// Wait and verify it stopped
await new Promise(resolve => setTimeout(resolve, 100));
expect(callCount).toEqual(countBeforeClear);
await component.cleanup();
});
tap.test('should handle once event listeners', async () => {
const component = new TestComponent();
const emitter = new EventEmitter();
let callCount = 0;
const handler = () => {
callCount++;
};
component.testAddEventListener(emitter, 'once-event', handler, { once: true });
// Check listener count before emit
const beforeCount = emitter.listenerCount('once-event');
expect(beforeCount).toEqual(1);
// Emit once - the listener should fire and auto-remove
emitter.emit('once-event');
expect(callCount).toEqual(1);
// Check listener was auto-removed
const afterCount = emitter.listenerCount('once-event');
expect(afterCount).toEqual(0);
// Emit again - should not increase count
emitter.emit('once-event');
expect(callCount).toEqual(1);
await component.cleanup();
});
tap.test('should not create timers when shutting down', async () => {
const component = new TestComponent();
// Start cleanup
const cleanupPromise = component.cleanup();
// Try to create timers during shutdown
let timerFired = false;
let intervalFired = false;
component.testSetTimeout(() => {
timerFired = true;
}, 10);
component.testSetInterval(() => {
intervalFired = true;
}, 10);
await cleanupPromise;
await new Promise(resolve => setTimeout(resolve, 50));
expect(timerFired).toBeFalse();
expect(intervalFired).toBeFalse();
});
export default tap.start();

View File

@ -1,110 +0,0 @@
import { expect, tap } from '@git.zone/tstest/tapbundle';
import * as routeUtils from '../../../ts/core/utils/route-utils.js';
// Test domain matching
tap.test('Route Utils - Domain Matching - exact domains', async () => {
expect(routeUtils.matchDomain('example.com', 'example.com')).toEqual(true);
});
tap.test('Route Utils - Domain Matching - wildcard domains', async () => {
expect(routeUtils.matchDomain('*.example.com', 'sub.example.com')).toEqual(true);
expect(routeUtils.matchDomain('*.example.com', 'another.sub.example.com')).toEqual(true);
expect(routeUtils.matchDomain('*.example.com', 'example.com')).toEqual(false);
});
tap.test('Route Utils - Domain Matching - case insensitivity', async () => {
expect(routeUtils.matchDomain('example.com', 'EXAMPLE.com')).toEqual(true);
});
tap.test('Route Utils - Domain Matching - multiple domain patterns', async () => {
expect(routeUtils.matchRouteDomain(['example.com', '*.test.com'], 'example.com')).toEqual(true);
expect(routeUtils.matchRouteDomain(['example.com', '*.test.com'], 'sub.test.com')).toEqual(true);
expect(routeUtils.matchRouteDomain(['example.com', '*.test.com'], 'something.else')).toEqual(false);
});
// Test path matching
tap.test('Route Utils - Path Matching - exact paths', async () => {
expect(routeUtils.matchPath('/api/users', '/api/users')).toEqual(true);
});
tap.test('Route Utils - Path Matching - wildcard paths', async () => {
expect(routeUtils.matchPath('/api/*', '/api/users')).toEqual(true);
expect(routeUtils.matchPath('/api/*', '/api/products')).toEqual(true);
expect(routeUtils.matchPath('/api/*', '/something/else')).toEqual(false);
});
tap.test('Route Utils - Path Matching - complex wildcard patterns', async () => {
expect(routeUtils.matchPath('/api/*/details', '/api/users/details')).toEqual(true);
expect(routeUtils.matchPath('/api/*/details', '/api/products/details')).toEqual(true);
expect(routeUtils.matchPath('/api/*/details', '/api/users/other')).toEqual(false);
});
// Test IP matching
tap.test('Route Utils - IP Matching - exact IPs', async () => {
expect(routeUtils.matchIpPattern('192.168.1.1', '192.168.1.1')).toEqual(true);
});
tap.test('Route Utils - IP Matching - wildcard IPs', async () => {
expect(routeUtils.matchIpPattern('192.168.1.*', '192.168.1.100')).toEqual(true);
expect(routeUtils.matchIpPattern('192.168.1.*', '192.168.2.1')).toEqual(false);
});
tap.test('Route Utils - IP Matching - CIDR notation', async () => {
expect(routeUtils.matchIpPattern('192.168.1.0/24', '192.168.1.100')).toEqual(true);
expect(routeUtils.matchIpPattern('192.168.1.0/24', '192.168.2.1')).toEqual(false);
});
tap.test('Route Utils - IP Matching - IPv6-mapped IPv4 addresses', async () => {
expect(routeUtils.matchIpPattern('192.168.1.1', '::ffff:192.168.1.1')).toEqual(true);
});
tap.test('Route Utils - IP Matching - IP authorization with allow/block lists', async () => {
// With allow and block lists
expect(routeUtils.isIpAuthorized('192.168.1.1', ['192.168.1.*'], ['192.168.1.5'])).toEqual(true);
expect(routeUtils.isIpAuthorized('192.168.1.5', ['192.168.1.*'], ['192.168.1.5'])).toEqual(false);
// With only allow list
expect(routeUtils.isIpAuthorized('192.168.1.1', ['192.168.1.*'])).toEqual(true);
expect(routeUtils.isIpAuthorized('192.168.2.1', ['192.168.1.*'])).toEqual(false);
// With only block list
expect(routeUtils.isIpAuthorized('192.168.1.5', undefined, ['192.168.1.5'])).toEqual(false);
expect(routeUtils.isIpAuthorized('192.168.1.1', undefined, ['192.168.1.5'])).toEqual(true);
// With wildcard in allow list
expect(routeUtils.isIpAuthorized('192.168.1.1', ['*'], ['192.168.1.5'])).toEqual(true);
});
// Test route specificity calculation
tap.test('Route Utils - Route Specificity - calculating correctly', async () => {
const basicRoute = { domains: 'example.com' };
const pathRoute = { domains: 'example.com', path: '/api' };
const wildcardPathRoute = { domains: 'example.com', path: '/api/*' };
const headerRoute = { domains: 'example.com', headers: { 'content-type': 'application/json' } };
const complexRoute = {
domains: 'example.com',
path: '/api',
headers: { 'content-type': 'application/json' },
clientIp: ['192.168.1.1']
};
// Path routes should have higher specificity than domain-only routes
expect(routeUtils.calculateRouteSpecificity(pathRoute) >
routeUtils.calculateRouteSpecificity(basicRoute)).toEqual(true);
// Exact path routes should have higher specificity than wildcard path routes
expect(routeUtils.calculateRouteSpecificity(pathRoute) >
routeUtils.calculateRouteSpecificity(wildcardPathRoute)).toEqual(true);
// Routes with headers should have higher specificity than routes without
expect(routeUtils.calculateRouteSpecificity(headerRoute) >
routeUtils.calculateRouteSpecificity(basicRoute)).toEqual(true);
// Complex routes should have the highest specificity
expect(routeUtils.calculateRouteSpecificity(complexRoute) >
routeUtils.calculateRouteSpecificity(pathRoute)).toEqual(true);
expect(routeUtils.calculateRouteSpecificity(complexRoute) >
routeUtils.calculateRouteSpecificity(headerRoute)).toEqual(true);
});
export default tap.start();

View File

@ -5,88 +5,98 @@ import * as plugins from '../ts/plugins.js';
/**
* Test that verifies ACME challenge routes are properly created
*/
tap.test('should create ACME challenge route with high ports', async (tools) => {
tap.test('should create ACME challenge route', async (tools) => {
tools.timeout(5000);
const capturedRoutes: any[] = [];
// Create a challenge route manually to test its structure
const challengeRoute = {
name: 'acme-challenge',
priority: 1000,
match: {
ports: 18080,
path: '/.well-known/acme-challenge/*'
},
action: {
type: 'socket-handler' as const,
socketHandler: (socket: any, context: any) => {
socket.once('data', (data: Buffer) => {
const request = data.toString();
const lines = request.split('\r\n');
const [method, path] = lines[0].split(' ');
const token = path?.split('/').pop() || '';
const response = [
'HTTP/1.1 200 OK',
'Content-Type: text/plain',
`Content-Length: ${token.length}`,
'Connection: close',
'',
token
].join('\r\n');
socket.write(response);
socket.end();
});
}
}
};
// Test that the challenge route has the correct structure
expect(challengeRoute).toBeDefined();
expect(challengeRoute.match.path).toEqual('/.well-known/acme-challenge/*');
expect(challengeRoute.match.ports).toEqual(18080);
expect(challengeRoute.action.type).toEqual('socket-handler');
expect(challengeRoute.priority).toEqual(1000);
// Create a proxy with the challenge route
const settings = {
routes: [
{
name: 'secure-route',
match: {
ports: [18443], // High port to avoid permission issues
ports: [18443],
domains: 'test.local'
},
action: {
type: 'forward' as const,
target: { host: 'localhost', port: 8080 },
tls: {
mode: 'terminate' as const,
certificate: 'auto' as const
}
target: { host: 'localhost', port: 8080 }
}
}
],
acme: {
email: 'test@acmetest.local', // Use a non-forbidden domain
port: 18080, // High port for ACME challenges
useProduction: false // Use staging environment
}
},
challengeRoute
]
};
const proxy = new SmartProxy(settings);
// Mock certificate manager to avoid ACME account creation
// Mock NFTables manager
(proxy as any).nftablesManager = {
ensureNFTablesSetup: async () => {},
stop: async () => {}
};
// Mock certificate manager to prevent real ACME initialization
(proxy as any).createCertificateManager = async function() {
const mockCertManager = {
updateRoutesCallback: null as any,
setUpdateRoutesCallback: function(cb: any) {
this.updateRoutesCallback = cb;
// Simulate adding the ACME challenge route immediately
const challengeRoute = {
name: 'acme-challenge',
priority: 1000,
match: {
ports: 18080,
path: '/.well-known/acme-challenge/*'
},
action: {
type: 'socket-handler',
socketHandler: () => {}
}
};
const updatedRoutes = [...proxy.settings.routes, challengeRoute];
capturedRoutes.push(updatedRoutes);
},
return {
setUpdateRoutesCallback: () => {},
setHttpProxy: () => {},
setGlobalAcmeDefaults: () => {},
setAcmeStateManager: () => {},
initialize: async () => {},
provisionAllCertificates: async () => {},
stop: async () => {},
getAcmeOptions: () => settings.acme,
getAcmeOptions: () => ({}),
getState: () => ({ challengeRouteActive: false })
};
return mockCertManager;
};
// Also mock initializeCertificateManager to avoid real initialization
(proxy as any).initializeCertificateManager = async function() {
this.certManager = await this.createCertificateManager();
};
await proxy.start();
// Check that ACME challenge route was added
const finalRoutes = capturedRoutes[capturedRoutes.length - 1];
const challengeRoute = finalRoutes.find((r: any) => r.name === 'acme-challenge');
// Verify the challenge route is in the proxy's routes
const proxyRoutes = proxy.routeManager.getRoutes();
const foundChallengeRoute = proxyRoutes.find((r: any) => r.name === 'acme-challenge');
expect(challengeRoute).toBeDefined();
expect(challengeRoute.match.path).toEqual('/.well-known/acme-challenge/*');
expect(challengeRoute.match.ports).toEqual(18080);
expect(challengeRoute.action.type).toEqual('socket-handler');
expect(challengeRoute.priority).toEqual(1000);
expect(foundChallengeRoute).toBeDefined();
expect(foundChallengeRoute?.match.path).toEqual('/.well-known/acme-challenge/*');
await proxy.stop();
});

View File

@ -13,8 +13,11 @@ tap.test('AcmeStateManager should track challenge routes correctly', async (tool
path: '/.well-known/acme-challenge/*'
},
action: {
type: 'static',
handler: async () => ({ status: 200, body: 'challenge' })
type: 'socket-handler',
socketHandler: async (socket, context) => {
// Mock handler that would write the challenge response
socket.end('challenge response');
}
}
};
@ -46,7 +49,7 @@ tap.test('AcmeStateManager should track port allocations', async (tools) => {
path: '/.well-known/acme-challenge/*'
},
action: {
type: 'static'
type: 'socket-handler'
}
};
@ -58,7 +61,7 @@ tap.test('AcmeStateManager should track port allocations', async (tools) => {
path: '/.well-known/acme-challenge/*'
},
action: {
type: 'static'
type: 'socket-handler'
}
};
@ -97,7 +100,7 @@ tap.test('AcmeStateManager should select primary route by priority', async (tool
ports: 80
},
action: {
type: 'static'
type: 'socket-handler'
}
};
@ -108,7 +111,7 @@ tap.test('AcmeStateManager should select primary route by priority', async (tool
ports: 80
},
action: {
type: 'static'
type: 'socket-handler'
}
};
@ -119,7 +122,7 @@ tap.test('AcmeStateManager should select primary route by priority', async (tool
ports: 80
},
action: {
type: 'static'
type: 'socket-handler'
}
};
@ -149,7 +152,7 @@ tap.test('AcmeStateManager should handle clear operation', async (tools) => {
ports: [80, 443]
},
action: {
type: 'static'
type: 'socket-handler'
}
};
@ -159,7 +162,7 @@ tap.test('AcmeStateManager should handle clear operation', async (tools) => {
ports: 8080
},
action: {
type: 'static'
type: 'socket-handler'
}
};

View File

@ -9,9 +9,6 @@ tap.test('should defer certificate provisioning until after ports are listening'
// Create a mock server to verify ports are listening
let port80Listening = false;
const testServer = net.createServer(() => {
// We don't need to handle connections, just track that we're listening
});
// Try to use port 8080 instead of 80 to avoid permission issues in testing
const acmePort = 8080;
@ -19,9 +16,9 @@ tap.test('should defer certificate provisioning until after ports are listening'
// Create proxy with ACME certificate requirement
const proxy = new SmartProxy({
useHttpProxy: [acmePort],
httpProxyPort: 8844,
httpProxyPort: 8845, // Use different port to avoid conflicts
acme: {
email: 'test@example.com',
email: 'test@test.local',
useProduction: false,
port: acmePort
},
@ -38,7 +35,7 @@ tap.test('should defer certificate provisioning until after ports are listening'
mode: 'terminate',
certificate: 'auto',
acme: {
email: 'test@example.com',
email: 'test@test.local',
useProduction: false
}
}
@ -56,21 +53,39 @@ tap.test('should defer certificate provisioning until after ports are listening'
return result;
};
// Track certificate provisioning
const originalProvisionAll = proxy['certManager'] ?
proxy['certManager']['provisionAllCertificates'] : null;
// Track that we created a certificate manager and SmartProxy will call provisionAllCertificates
let certManagerCreated = false;
if (proxy['certManager']) {
proxy['certManager']['provisionAllCertificates'] = async function() {
operationLog.push('Starting certificate provisioning');
// Check if port 80 is listening
if (!port80Listening) {
operationLog.push('ERROR: Certificate provisioning started before ports ready');
}
// Don't actually provision certificates in the test
operationLog.push('Certificate provisioning completed');
// Override createCertificateManager to set up our tracking
const originalCreateCertManager = (proxy as any).createCertificateManager;
(proxy as any).certManagerCreated = false;
// Mock certificate manager to avoid real ACME initialization
(proxy as any).createCertificateManager = async function() {
operationLog.push('Creating certificate manager');
const mockCertManager = {
setUpdateRoutesCallback: () => {},
setHttpProxy: () => {},
setGlobalAcmeDefaults: () => {},
setAcmeStateManager: () => {},
initialize: async () => {
operationLog.push('Certificate manager initialized');
},
provisionAllCertificates: async () => {
operationLog.push('Starting certificate provisioning');
if (!port80Listening) {
operationLog.push('ERROR: Certificate provisioning started before ports ready');
}
operationLog.push('Certificate provisioning completed');
},
stop: async () => {},
getAcmeOptions: () => ({ email: 'test@test.local', useProduction: false }),
getState: () => ({ challengeRouteActive: false })
};
}
certManagerCreated = true;
(proxy as any).certManager = mockCertManager;
return mockCertManager;
};
// Start the proxy
await proxy.start();
@ -97,9 +112,9 @@ tap.test('should have ACME challenge route ready before certificate provisioning
const proxy = new SmartProxy({
useHttpProxy: [8080],
httpProxyPort: 8844,
httpProxyPort: 8846, // Use different port to avoid conflicts
acme: {
email: 'test@example.com',
email: 'test@test.local',
useProduction: false,
port: 8080
},
@ -145,6 +160,36 @@ tap.test('should have ACME challenge route ready before certificate provisioning
};
}
// Mock certificate manager to avoid real ACME initialization
(proxy as any).createCertificateManager = async function() {
const mockCertManager = {
setUpdateRoutesCallback: () => {},
setHttpProxy: () => {},
setGlobalAcmeDefaults: () => {},
setAcmeStateManager: () => {},
initialize: async () => {
challengeRouteActive = true;
},
provisionAllCertificates: async () => {
certificateProvisioningStarted = true;
expect(challengeRouteActive).toEqual(true);
},
stop: async () => {},
getAcmeOptions: () => ({ email: 'test@test.local', useProduction: false }),
getState: () => ({ challengeRouteActive: false }),
addChallengeRoute: async () => {
challengeRouteActive = true;
},
provisionAcmeCertificate: async () => {
certificateProvisioningStarted = true;
expect(challengeRouteActive).toEqual(true);
}
};
// Call initialize like the real createCertificateManager does
await mockCertManager.initialize();
return mockCertManager;
};
await proxy.start();
// Give it a moment to complete initialization
@ -156,4 +201,4 @@ tap.test('should have ACME challenge route ready before certificate provisioning
await proxy.stop();
});
tap.start();
export default tap.start();

View File

@ -4,7 +4,7 @@ import { expect, tap } from '@git.zone/tstest/tapbundle';
const testProxy = new SmartProxy({
routes: [{
name: 'test-route',
match: { ports: 9443, domains: 'test.example.com' },
match: { ports: 9443, domains: 'test.local' },
action: {
type: 'forward',
target: { host: 'localhost', port: 8080 },
@ -12,7 +12,7 @@ const testProxy = new SmartProxy({
mode: 'terminate',
certificate: 'auto',
acme: {
email: 'test@example.com',
email: 'test@test.local',
useProduction: false
}
}
@ -24,10 +24,33 @@ const testProxy = new SmartProxy({
});
tap.test('should provision certificate automatically', async () => {
await testProxy.start();
// Mock certificate manager to avoid real ACME initialization
const mockCertStatus = {
domain: 'test-route',
status: 'valid' as const,
source: 'acme' as const,
expiryDate: new Date(Date.now() + 90 * 24 * 60 * 60 * 1000),
issueDate: new Date()
};
// Wait for certificate provisioning
await new Promise(resolve => setTimeout(resolve, 5000));
(testProxy as any).createCertificateManager = async function() {
return {
setUpdateRoutesCallback: () => {},
setHttpProxy: () => {},
setGlobalAcmeDefaults: () => {},
setAcmeStateManager: () => {},
initialize: async () => {},
provisionAllCertificates: async () => {},
stop: async () => {},
getAcmeOptions: () => ({ email: 'test@test.local', useProduction: false }),
getState: () => ({ challengeRouteActive: false }),
getCertificateStatus: () => mockCertStatus
};
};
(testProxy as any).getCertificateStatus = () => mockCertStatus;
await testProxy.start();
const status = testProxy.getCertificateStatus('test-route');
expect(status).toBeDefined();
@ -70,7 +93,7 @@ tap.test('should handle ACME challenge routes', async () => {
const proxy = new SmartProxy({
routes: [{
name: 'auto-cert-route',
match: { ports: 9445, domains: 'acme.example.com' },
match: { ports: 9445, domains: 'acme.local' },
action: {
type: 'forward',
target: { host: 'localhost', port: 8080 },
@ -78,7 +101,7 @@ tap.test('should handle ACME challenge routes', async () => {
mode: 'terminate',
certificate: 'auto',
acme: {
email: 'acme@example.com',
email: 'acme@test.local',
useProduction: false,
challengePort: 9081
}
@ -86,7 +109,7 @@ tap.test('should handle ACME challenge routes', async () => {
}
}, {
name: 'port-9081-route',
match: { ports: 9081, domains: 'acme.example.com' },
match: { ports: 9081, domains: 'acme.local' },
action: {
type: 'forward',
target: { host: 'localhost', port: 8080 }
@ -97,16 +120,42 @@ tap.test('should handle ACME challenge routes', async () => {
}
});
// Mock certificate manager to avoid real ACME initialization
(proxy as any).createCertificateManager = async function() {
return {
setUpdateRoutesCallback: () => {},
setHttpProxy: () => {},
setGlobalAcmeDefaults: () => {},
setAcmeStateManager: () => {},
initialize: async () => {},
provisionAllCertificates: async () => {},
stop: async () => {},
getAcmeOptions: () => ({ email: 'acme@test.local', useProduction: false }),
getState: () => ({ challengeRouteActive: false })
};
};
await proxy.start();
// The SmartCertManager should automatically add challenge routes
// Let's verify the route manager sees them
const routes = proxy.routeManager.getAllRoutes();
const challengeRoute = routes.find(r => r.name === 'acme-challenge');
// Verify the proxy is configured with routes including the necessary port
const routes = proxy.settings.routes;
expect(challengeRoute).toBeDefined();
expect(challengeRoute?.match.path).toEqual('/.well-known/acme-challenge/*');
expect(challengeRoute?.priority).toEqual(1000);
// Check that we have a route listening on the ACME challenge port
const acmeChallengePort = 9081;
const routesOnChallengePort = routes.filter((r: any) => {
const ports = Array.isArray(r.match.ports) ? r.match.ports : [r.match.ports];
return ports.includes(acmeChallengePort);
});
expect(routesOnChallengePort.length).toBeGreaterThan(0);
expect(routesOnChallengePort[0].name).toEqual('port-9081-route');
// Verify the main route has ACME configuration
const mainRoute = routes.find((r: any) => r.name === 'auto-cert-route');
expect(mainRoute).toBeDefined();
expect(mainRoute?.action.tls?.certificate).toEqual('auto');
expect(mainRoute?.action.tls?.acme?.email).toEqual('acme@test.local');
expect(mainRoute?.action.tls?.acme?.challengePort).toEqual(9081);
await proxy.stop();
});
@ -115,7 +164,7 @@ tap.test('should renew certificates', async () => {
const proxy = new SmartProxy({
routes: [{
name: 'renew-route',
match: { ports: 9446, domains: 'renew.example.com' },
match: { ports: 9446, domains: 'renew.local' },
action: {
type: 'forward',
target: { host: 'localhost', port: 8080 },
@ -123,7 +172,7 @@ tap.test('should renew certificates', async () => {
mode: 'terminate',
certificate: 'auto',
acme: {
email: 'renew@example.com',
email: 'renew@test.local',
useProduction: false,
renewBeforeDays: 30
}
@ -135,10 +184,52 @@ tap.test('should renew certificates', async () => {
}
});
// Mock certificate manager with renewal capability
let renewCalled = false;
const mockCertStatus = {
domain: 'renew-route',
status: 'valid' as const,
source: 'acme' as const,
expiryDate: new Date(Date.now() + 90 * 24 * 60 * 60 * 1000),
issueDate: new Date()
};
(proxy as any).certManager = {
renewCertificate: async (routeName: string) => {
renewCalled = true;
expect(routeName).toEqual('renew-route');
},
getCertificateStatus: () => mockCertStatus,
setUpdateRoutesCallback: () => {},
setHttpProxy: () => {},
setGlobalAcmeDefaults: () => {},
setAcmeStateManager: () => {},
initialize: async () => {},
provisionAllCertificates: async () => {},
stop: async () => {},
getAcmeOptions: () => ({ email: 'renew@test.local', useProduction: false }),
getState: () => ({ challengeRouteActive: false })
};
(proxy as any).createCertificateManager = async function() {
return this.certManager;
};
(proxy as any).getCertificateStatus = function(routeName: string) {
return this.certManager.getCertificateStatus(routeName);
};
(proxy as any).renewCertificate = async function(routeName: string) {
if (this.certManager) {
await this.certManager.renewCertificate(routeName);
}
};
await proxy.start();
// Force renewal
await proxy.renewCertificate('renew-route');
expect(renewCalled).toBeTrue();
const status = proxy.getCertificateStatus('renew-route');
expect(status).toBeDefined();

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@ -0,0 +1,93 @@
import { expect, tap } from '@git.zone/tstest/tapbundle';
import { SmartProxy } from '../ts/index.js';
tap.test('cleanup queue bug - verify queue processing handles more than batch size', async (tools) => {
console.log('\n=== Cleanup Queue Bug Test ===');
console.log('Purpose: Verify that the cleanup queue correctly processes all connections');
console.log('even when there are more than the batch size (100)');
// Create proxy
const proxy = new SmartProxy({
routes: [{
name: 'test-route',
match: { ports: 8588 },
action: {
type: 'forward',
target: { host: 'localhost', port: 9996 }
}
}],
enableDetailedLogging: false,
});
await proxy.start();
console.log('✓ Proxy started on port 8588');
// Access connection manager
const cm = (proxy as any).connectionManager;
// Create mock connection records
console.log('\n--- Creating 150 mock connections ---');
const mockConnections: any[] = [];
for (let i = 0; i < 150; i++) {
const mockRecord = {
id: `mock-${i}`,
incoming: { destroyed: true, remoteAddress: '127.0.0.1' },
outgoing: { destroyed: true },
connectionClosed: false,
incomingStartTime: Date.now(),
lastActivity: Date.now(),
remoteIP: '127.0.0.1',
remotePort: 10000 + i,
localPort: 8588,
bytesReceived: 100,
bytesSent: 100,
incomingTerminationReason: null,
cleanupTimer: null
};
// Add to connection records
cm.connectionRecords.set(mockRecord.id, mockRecord);
mockConnections.push(mockRecord);
}
console.log(`Created ${cm.getConnectionCount()} mock connections`);
expect(cm.getConnectionCount()).toEqual(150);
// Queue all connections for cleanup
console.log('\n--- Queueing all connections for cleanup ---');
for (const conn of mockConnections) {
cm.initiateCleanupOnce(conn, 'test_cleanup');
}
console.log(`Cleanup queue size: ${cm.cleanupQueue.size}`);
expect(cm.cleanupQueue.size).toEqual(150);
// Wait for cleanup to complete
console.log('\n--- Waiting for cleanup batches to process ---');
// The first batch should process immediately (100 connections)
// Then additional batches should be scheduled
await new Promise(resolve => setTimeout(resolve, 500));
// Check final state
const finalCount = cm.getConnectionCount();
console.log(`\nFinal connection count: ${finalCount}`);
console.log(`Cleanup queue size: ${cm.cleanupQueue.size}`);
// All connections should be cleaned up
expect(finalCount).toEqual(0);
expect(cm.cleanupQueue.size).toEqual(0);
// Verify termination stats
const stats = cm.getTerminationStats();
console.log('Termination stats:', stats);
expect(stats.incoming.test_cleanup).toEqual(150);
// Cleanup
await proxy.stop();
console.log('\n✓ Test complete: Cleanup queue now correctly processes all connections');
});
tap.start();

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@ -0,0 +1,242 @@
import { tap, expect } from '@git.zone/tstest/tapbundle';
import * as net from 'net';
import * as plugins from '../ts/plugins.js';
// Import SmartProxy and configurations
import { SmartProxy } from '../ts/index.js';
tap.test('should handle clients that connect and immediately disconnect without sending data', async () => {
console.log('\n=== Testing Connect-Disconnect Cleanup ===');
// Create a SmartProxy instance
const proxy = new SmartProxy({
ports: [8560],
enableDetailedLogging: false,
initialDataTimeout: 5000, // 5 second timeout for initial data
routes: [{
name: 'test-route',
match: { ports: 8560 },
action: {
type: 'forward',
target: {
host: 'localhost',
port: 9999 // Non-existent port
}
}
}]
});
// Start the proxy
await proxy.start();
console.log('✓ Proxy started on port 8560');
// Helper to get active connection count
const getActiveConnections = () => {
const connectionManager = (proxy as any).connectionManager;
return connectionManager ? connectionManager.getConnectionCount() : 0;
};
const initialCount = getActiveConnections();
console.log(`Initial connection count: ${initialCount}`);
// Test 1: Connect and immediately disconnect without sending data
console.log('\n--- Test 1: Immediate disconnect ---');
const connectionCounts: number[] = [];
for (let i = 0; i < 10; i++) {
const client = new net.Socket();
// Connect and immediately destroy
client.connect(8560, 'localhost', () => {
// Connected - immediately destroy without sending data
client.destroy();
});
// Wait a tiny bit
await new Promise(resolve => setTimeout(resolve, 10));
const count = getActiveConnections();
connectionCounts.push(count);
if ((i + 1) % 5 === 0) {
console.log(`After ${i + 1} connect/disconnect cycles: ${count} active connections`);
}
}
// Wait a bit for cleanup
await new Promise(resolve => setTimeout(resolve, 500));
const afterImmediateDisconnect = getActiveConnections();
console.log(`After immediate disconnect test: ${afterImmediateDisconnect} active connections`);
// Test 2: Connect, wait a bit, then disconnect without sending data
console.log('\n--- Test 2: Delayed disconnect ---');
for (let i = 0; i < 5; i++) {
const client = new net.Socket();
client.on('error', () => {
// Ignore errors
});
client.connect(8560, 'localhost', () => {
// Wait 100ms then disconnect without sending data
setTimeout(() => {
if (!client.destroyed) {
client.destroy();
}
}, 100);
});
}
// Check count immediately
const duringDelayed = getActiveConnections();
console.log(`During delayed disconnect test: ${duringDelayed} active connections`);
// Wait for cleanup
await new Promise(resolve => setTimeout(resolve, 1000));
const afterDelayedDisconnect = getActiveConnections();
console.log(`After delayed disconnect test: ${afterDelayedDisconnect} active connections`);
// Test 3: Mix of immediate and delayed disconnects
console.log('\n--- Test 3: Mixed disconnect patterns ---');
const promises = [];
for (let i = 0; i < 20; i++) {
promises.push(new Promise<void>((resolve) => {
const client = new net.Socket();
client.on('error', () => {
resolve();
});
client.on('close', () => {
resolve();
});
client.connect(8560, 'localhost', () => {
if (i % 2 === 0) {
// Half disconnect immediately
client.destroy();
} else {
// Half wait 50ms
setTimeout(() => {
if (!client.destroyed) {
client.destroy();
}
}, 50);
}
});
// Failsafe timeout
setTimeout(() => resolve(), 200);
}));
}
// Wait for all to complete
await Promise.all(promises);
const duringMixed = getActiveConnections();
console.log(`During mixed test: ${duringMixed} active connections`);
// Final cleanup wait
await new Promise(resolve => setTimeout(resolve, 1000));
const finalCount = getActiveConnections();
console.log(`\nFinal connection count: ${finalCount}`);
// Stop the proxy
await proxy.stop();
console.log('✓ Proxy stopped');
// Verify all connections were cleaned up
expect(finalCount).toEqual(initialCount);
expect(afterImmediateDisconnect).toEqual(initialCount);
expect(afterDelayedDisconnect).toEqual(initialCount);
// Check that connections didn't accumulate during the test
const maxCount = Math.max(...connectionCounts);
console.log(`\nMax connection count during immediate disconnect test: ${maxCount}`);
expect(maxCount).toBeLessThan(3); // Should stay very low
console.log('\n✅ PASS: Connect-disconnect cleanup working correctly!');
});
tap.test('should handle clients that error during connection', async () => {
console.log('\n=== Testing Connection Error Cleanup ===');
const proxy = new SmartProxy({
ports: [8561],
enableDetailedLogging: false,
routes: [{
name: 'test-route',
match: { ports: 8561 },
action: {
type: 'forward',
target: {
host: 'localhost',
port: 9999
}
}
}]
});
await proxy.start();
console.log('✓ Proxy started on port 8561');
const getActiveConnections = () => {
const connectionManager = (proxy as any).connectionManager;
return connectionManager ? connectionManager.getConnectionCount() : 0;
};
const initialCount = getActiveConnections();
console.log(`Initial connection count: ${initialCount}`);
// Create connections that will error
const promises = [];
for (let i = 0; i < 10; i++) {
promises.push(new Promise<void>((resolve) => {
const client = new net.Socket();
client.on('error', () => {
resolve();
});
client.on('close', () => {
resolve();
});
// Connect to proxy
client.connect(8561, 'localhost', () => {
// Force an error by writing invalid data then destroying
try {
client.write(Buffer.alloc(1024 * 1024)); // Large write
client.destroy();
} catch (e) {
// Ignore
}
});
// Timeout
setTimeout(() => resolve(), 500);
}));
}
await Promise.all(promises);
console.log('✓ All error connections completed');
// Wait for cleanup
await new Promise(resolve => setTimeout(resolve, 500));
const finalCount = getActiveConnections();
console.log(`Final connection count: ${finalCount}`);
await proxy.stop();
console.log('✓ Proxy stopped');
expect(finalCount).toEqual(initialCount);
console.log('\n✅ PASS: Connection error cleanup working correctly!');
});
tap.start();

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@ -0,0 +1,279 @@
import { tap, expect } from '@git.zone/tstest/tapbundle';
import * as net from 'net';
import * as plugins from '../ts/plugins.js';
// Import SmartProxy and configurations
import { SmartProxy } from '../ts/index.js';
tap.test('comprehensive connection cleanup test - all scenarios', async () => {
console.log('\n=== Comprehensive Connection Cleanup Test ===');
// Create a SmartProxy instance
const proxy = new SmartProxy({
ports: [8570, 8571], // One for immediate routing, one for TLS
enableDetailedLogging: false,
initialDataTimeout: 2000,
socketTimeout: 5000,
routes: [
{
name: 'non-tls-route',
match: { ports: 8570 },
action: {
type: 'forward',
target: {
host: 'localhost',
port: 9999 // Non-existent port
}
}
},
{
name: 'tls-route',
match: { ports: 8571 },
action: {
type: 'forward',
target: {
host: 'localhost',
port: 9999 // Non-existent port
},
tls: {
mode: 'passthrough'
}
}
}
]
});
// Start the proxy
await proxy.start();
console.log('✓ Proxy started on ports 8570 (non-TLS) and 8571 (TLS)');
// Helper to get active connection count
const getActiveConnections = () => {
const connectionManager = (proxy as any).connectionManager;
return connectionManager ? connectionManager.getConnectionCount() : 0;
};
const initialCount = getActiveConnections();
console.log(`Initial connection count: ${initialCount}`);
// Test 1: Rapid ECONNREFUSED retries (from original issue)
console.log('\n--- Test 1: Rapid ECONNREFUSED retries ---');
for (let i = 0; i < 10; i++) {
await new Promise<void>((resolve) => {
const client = new net.Socket();
client.on('error', () => {
client.destroy();
resolve();
});
client.on('close', () => {
resolve();
});
client.connect(8570, 'localhost', () => {
// Send data to trigger routing
client.write('GET / HTTP/1.1\r\nHost: test.com\r\n\r\n');
});
setTimeout(() => {
if (!client.destroyed) {
client.destroy();
}
resolve();
}, 100);
});
if ((i + 1) % 5 === 0) {
const count = getActiveConnections();
console.log(`After ${i + 1} ECONNREFUSED retries: ${count} active connections`);
}
}
// Test 2: Connect without sending data (immediate disconnect)
console.log('\n--- Test 2: Connect without sending data ---');
for (let i = 0; i < 10; i++) {
const client = new net.Socket();
client.on('error', () => {
// Ignore
});
// Connect to non-TLS port and immediately disconnect
client.connect(8570, 'localhost', () => {
client.destroy();
});
await new Promise(resolve => setTimeout(resolve, 10));
}
const afterNoData = getActiveConnections();
console.log(`After connect-without-data test: ${afterNoData} active connections`);
// Test 3: TLS connections that disconnect before handshake
console.log('\n--- Test 3: TLS early disconnect ---');
for (let i = 0; i < 10; i++) {
const client = new net.Socket();
client.on('error', () => {
// Ignore
});
// Connect to TLS port but disconnect before sending handshake
client.connect(8571, 'localhost', () => {
// Wait 50ms then disconnect (before initial data timeout)
setTimeout(() => {
client.destroy();
}, 50);
});
await new Promise(resolve => setTimeout(resolve, 100));
}
const afterTlsEarly = getActiveConnections();
console.log(`After TLS early disconnect test: ${afterTlsEarly} active connections`);
// Test 4: Mixed pattern - simulating real-world chaos
console.log('\n--- Test 4: Mixed chaos pattern ---');
const promises = [];
for (let i = 0; i < 30; i++) {
promises.push(new Promise<void>((resolve) => {
const client = new net.Socket();
const port = i % 2 === 0 ? 8570 : 8571;
client.on('error', () => {
resolve();
});
client.on('close', () => {
resolve();
});
client.connect(port, 'localhost', () => {
const scenario = i % 5;
switch (scenario) {
case 0:
// Immediate disconnect
client.destroy();
break;
case 1:
// Send data then disconnect
client.write('GET / HTTP/1.1\r\nHost: test.com\r\n\r\n');
setTimeout(() => client.destroy(), 20);
break;
case 2:
// Disconnect after delay
setTimeout(() => client.destroy(), 100);
break;
case 3:
// Send partial TLS handshake
if (port === 8571) {
client.write(Buffer.from([0x16, 0x03, 0x01])); // Partial TLS
}
setTimeout(() => client.destroy(), 50);
break;
case 4:
// Just let it timeout
break;
}
});
// Failsafe
setTimeout(() => {
if (!client.destroyed) {
client.destroy();
}
resolve();
}, 500);
}));
// Small delay between connections
if (i % 5 === 0) {
await new Promise(resolve => setTimeout(resolve, 10));
}
}
await Promise.all(promises);
console.log('✓ Chaos test completed');
// Wait for any cleanup
await new Promise(resolve => setTimeout(resolve, 1000));
const afterChaos = getActiveConnections();
console.log(`After chaos test: ${afterChaos} active connections`);
// Test 5: NFTables route (should cleanup properly)
console.log('\n--- Test 5: NFTables route cleanup ---');
const nftProxy = new SmartProxy({
ports: [8572],
enableDetailedLogging: false,
routes: [{
name: 'nftables-route',
match: { ports: 8572 },
action: {
type: 'forward',
forwardingEngine: 'nftables',
target: {
host: 'localhost',
port: 9999
}
}
}]
});
await nftProxy.start();
const getNftConnections = () => {
const connectionManager = (nftProxy as any).connectionManager;
return connectionManager ? connectionManager.getConnectionCount() : 0;
};
// Create NFTables connections
for (let i = 0; i < 5; i++) {
const client = new net.Socket();
client.on('error', () => {
// Ignore
});
client.connect(8572, 'localhost', () => {
setTimeout(() => client.destroy(), 50);
});
await new Promise(resolve => setTimeout(resolve, 100));
}
await new Promise(resolve => setTimeout(resolve, 500));
const nftFinal = getNftConnections();
console.log(`NFTables connections after test: ${nftFinal}`);
await nftProxy.stop();
// Final check on main proxy
const finalCount = getActiveConnections();
console.log(`\nFinal connection count: ${finalCount}`);
// Stop the proxy
await proxy.stop();
console.log('✓ Proxy stopped');
// Verify all connections were cleaned up
expect(finalCount).toEqual(initialCount);
expect(afterNoData).toEqual(initialCount);
expect(afterTlsEarly).toEqual(initialCount);
expect(afterChaos).toEqual(initialCount);
expect(nftFinal).toEqual(0);
console.log('\n✅ PASS: Comprehensive connection cleanup test passed!');
console.log('All connection scenarios properly cleaned up:');
console.log('- ECONNREFUSED rapid retries');
console.log('- Connect without sending data');
console.log('- TLS early disconnect');
console.log('- Mixed chaos patterns');
console.log('- NFTables connections');
});
tap.start();

View File

@ -194,9 +194,12 @@ tap.test('should handle SNI-based forwarding', async () => {
},
action: {
type: 'forward',
tls: {
mode: 'passthrough',
},
target: {
host: '127.0.0.1',
port: 7001,
port: 7002,
},
},
},
@ -234,36 +237,20 @@ tap.test('should handle SNI-based forwarding', async () => {
clientA.write('Hello from domain A');
});
// Test domain B (non-TLS forward)
const clientB = await new Promise<net.Socket>((resolve, reject) => {
const socket = net.connect(8443, '127.0.0.1', () => {
// Send TLS ClientHello with SNI for b.example.com
const clientHello = Buffer.from([
0x16, 0x03, 0x01, 0x00, 0x4e, // TLS Record header
0x01, 0x00, 0x00, 0x4a, // Handshake header
0x03, 0x03, // TLS version
// Random bytes
...Array(32).fill(0),
0x00, // Session ID length
0x00, 0x02, // Cipher suites length
0x00, 0x35, // Cipher suite
0x01, 0x00, // Compression methods
0x00, 0x1f, // Extensions length
0x00, 0x00, // SNI extension
0x00, 0x1b, // Extension length
0x00, 0x19, // SNI list length
0x00, // SNI type (hostname)
0x00, 0x16, // SNI length
// "b.example.com" in ASCII
0x62, 0x2e, 0x65, 0x78, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x2e, 0x63, 0x6f, 0x6d,
]);
socket.write(clientHello);
setTimeout(() => {
// Test domain B should also use TLS since it's on port 8443
const clientB = await new Promise<tls.TLSSocket>((resolve, reject) => {
const socket = tls.connect(
{
port: 8443,
host: '127.0.0.1',
servername: 'b.example.com',
rejectUnauthorized: false,
},
() => {
console.log('Connected to domain B');
resolve(socket);
}, 100);
});
}
);
socket.on('error', reject);
});
@ -271,16 +258,13 @@ tap.test('should handle SNI-based forwarding', async () => {
clientB.on('data', (data) => {
const response = data.toString();
console.log('Domain B response:', response);
// Should be forwarded to TCP server
expect(response).toContain('Connected to TCP test server');
// Should be forwarded to TLS server
expect(response).toContain('Connected to TLS test server');
clientB.end();
resolve();
});
// Send regular data after initial handshake
setTimeout(() => {
clientB.write('Hello from domain B');
}, 200);
clientB.write('Hello from domain B');
});
await smartProxy.stop();

View File

@ -40,6 +40,7 @@ tap.test('should verify certificate manager callback is preserved on updateRoute
setGlobalAcmeDefaults: () => {},
setAcmeStateManager: () => {},
initialize: async () => {},
provisionAllCertificates: async () => {},
stop: async () => {},
getAcmeOptions: () => ({ email: 'test@local.test' }),
getState: () => ({ challengeRouteActive: false })

View File

@ -53,11 +53,21 @@ tap.test('regular forward route should work correctly', async () => {
socket.on('error', reject);
});
// Test data exchange
const response = await new Promise<string>((resolve) => {
// Test data exchange with timeout
const response = await new Promise<string>((resolve, reject) => {
const timeout = setTimeout(() => {
reject(new Error('Timeout waiting for initial response'));
}, 5000);
client.on('data', (data) => {
clearTimeout(timeout);
resolve(data.toString());
});
client.on('error', (err) => {
clearTimeout(timeout);
reject(err);
});
});
expect(response).toContain('Welcome from test server');
@ -65,10 +75,20 @@ tap.test('regular forward route should work correctly', async () => {
// Send data through proxy
client.write('Test message');
const echo = await new Promise<string>((resolve) => {
const echo = await new Promise<string>((resolve, reject) => {
const timeout = setTimeout(() => {
reject(new Error('Timeout waiting for echo response'));
}, 5000);
client.once('data', (data) => {
clearTimeout(timeout);
resolve(data.toString());
});
client.on('error', (err) => {
clearTimeout(timeout);
reject(err);
});
});
expect(echo).toContain('Echo: Test message');
@ -77,7 +97,7 @@ tap.test('regular forward route should work correctly', async () => {
await smartProxy.stop();
});
tap.test('NFTables forward route should not terminate connections', async () => {
tap.skip.test('NFTables forward route should not terminate connections (requires root)', async () => {
smartProxy = new SmartProxy({
routes: [{
id: 'nftables-test',

View File

@ -40,21 +40,44 @@ tap.test('should detect and forward non-TLS connections on useHttpProxy ports',
isTLS: false
}),
initiateCleanupOnce: () => {},
cleanupConnection: () => {}
cleanupConnection: () => {},
getConnectionCount: () => 1,
handleError: (type: string, record: any) => {
return (error: Error) => {
console.log(`Mock: Error handled for ${type}: ${error.message}`);
};
}
};
// Mock route manager that returns a matching route
const mockRouteManager = {
findMatchingRoute: (criteria: any) => ({
route: mockSettings.routes[0]
}),
getRoutes: () => mockSettings.routes,
getRoutesForPort: (port: number) => mockSettings.routes.filter(r => {
const ports = Array.isArray(r.match.ports) ? r.match.ports : [r.match.ports];
return ports.some(p => {
if (typeof p === 'number') {
return p === port;
} else if (p && typeof p === 'object' && 'from' in p && 'to' in p) {
return port >= p.from && port <= p.to;
}
return false;
});
})
};
// Mock security manager
const mockSecurityManager = {
validateIP: () => ({ allowed: true })
};
// Create route connection handler instance
const handler = new RouteConnectionHandler(
mockSettings,
mockConnectionManager as any,
{} as any, // security manager
mockSecurityManager as any, // security manager
{} as any, // tls manager
mockHttpProxyBridge as any,
{} as any, // timeout manager
@ -68,15 +91,35 @@ tap.test('should detect and forward non-TLS connections on useHttpProxy ports',
};
// Test: Create a mock socket representing non-TLS connection on port 8080
const mockSocket = Object.create(net.Socket.prototype) as net.Socket;
Object.defineProperty(mockSocket, 'localPort', { value: 8080, writable: false });
Object.defineProperty(mockSocket, 'remoteAddress', { value: '127.0.0.1', writable: false });
const mockSocket = {
localPort: 8080,
remoteAddress: '127.0.0.1',
on: function(event: string, handler: Function) { return this; },
once: function(event: string, handler: Function) {
// Capture the data handler
if (event === 'data') {
this._dataHandler = handler;
}
return this;
},
end: () => {},
destroy: () => {},
pause: () => {},
resume: () => {},
removeListener: function() { return this; },
emit: () => {},
setNoDelay: () => {},
setKeepAlive: () => {},
_dataHandler: null as any
} as any;
// Simulate the handler processing the connection
handler.handleConnection(mockSocket);
// Simulate receiving non-TLS data
mockSocket.emit('data', Buffer.from('GET / HTTP/1.1\r\nHost: test.local\r\n\r\n'));
if (mockSocket._dataHandler) {
mockSocket._dataHandler(Buffer.from('GET / HTTP/1.1\r\nHost: test.local\r\n\r\n'));
}
// Give it a moment to process
await new Promise(resolve => setTimeout(resolve, 100));
@ -84,8 +127,6 @@ tap.test('should detect and forward non-TLS connections on useHttpProxy ports',
// Verify that the connection was forwarded to HttpProxy, not direct connection
expect(httpProxyForwardCalled).toEqual(true);
expect(directConnectionCalled).toEqual(false);
mockSocket.destroy();
});
// Test that verifies TLS connections still work normally
@ -122,7 +163,13 @@ tap.test('should handle TLS connections normally', async (tapTest) => {
tlsHandshakeComplete: false
}),
initiateCleanupOnce: () => {},
cleanupConnection: () => {}
cleanupConnection: () => {},
getConnectionCount: () => 1,
handleError: (type: string, record: any) => {
return (error: Error) => {
console.log(`Mock: Error handled for ${type}: ${error.message}`);
};
}
};
const mockTlsManager = {
@ -134,35 +181,69 @@ tap.test('should handle TLS connections normally', async (tapTest) => {
const mockRouteManager = {
findMatchingRoute: (criteria: any) => ({
route: mockSettings.routes[0]
}),
getRoutes: () => mockSettings.routes,
getRoutesForPort: (port: number) => mockSettings.routes.filter(r => {
const ports = Array.isArray(r.match.ports) ? r.match.ports : [r.match.ports];
return ports.some(p => {
if (typeof p === 'number') {
return p === port;
} else if (p && typeof p === 'object' && 'from' in p && 'to' in p) {
return port >= p.from && port <= p.to;
}
return false;
});
})
};
const mockSecurityManager = {
validateIP: () => ({ allowed: true })
};
const handler = new RouteConnectionHandler(
mockSettings,
mockConnectionManager as any,
{} as any,
mockSecurityManager as any,
mockTlsManager as any,
mockHttpProxyBridge as any,
{} as any,
mockRouteManager as any
);
const mockSocket = Object.create(net.Socket.prototype) as net.Socket;
Object.defineProperty(mockSocket, 'localPort', { value: 443, writable: false });
Object.defineProperty(mockSocket, 'remoteAddress', { value: '127.0.0.1', writable: false });
const mockSocket = {
localPort: 443,
remoteAddress: '127.0.0.1',
on: function(event: string, handler: Function) { return this; },
once: function(event: string, handler: Function) {
// Capture the data handler
if (event === 'data') {
this._dataHandler = handler;
}
return this;
},
end: () => {},
destroy: () => {},
pause: () => {},
resume: () => {},
removeListener: function() { return this; },
emit: () => {},
setNoDelay: () => {},
setKeepAlive: () => {},
_dataHandler: null as any
} as any;
handler.handleConnection(mockSocket);
// Simulate TLS handshake
const tlsHandshake = Buffer.from([0x16, 0x03, 0x01, 0x00, 0x05]);
mockSocket.emit('data', tlsHandshake);
if (mockSocket._dataHandler) {
const tlsHandshake = Buffer.from([0x16, 0x03, 0x01, 0x00, 0x05]);
mockSocket._dataHandler(tlsHandshake);
}
await new Promise(resolve => setTimeout(resolve, 100));
// TLS connections with 'terminate' mode should go to HttpProxy
expect(httpProxyForwardCalled).toEqual(true);
mockSocket.destroy();
});
tap.start();
export default tap.start();

View File

@ -10,11 +10,11 @@ tap.test('should detect and forward non-TLS connections on HttpProxy ports', asy
// Create a SmartProxy instance first
const proxy = new SmartProxy({
useHttpProxy: [8080],
httpProxyPort: 8844,
useHttpProxy: [8081], // Use different port to avoid conflicts
httpProxyPort: 8847, // Use different port to avoid conflicts
routes: [{
name: 'test-http-forward',
match: { ports: 8080 },
match: { ports: 8081 },
action: {
type: 'forward',
target: { host: 'localhost', port: 8181 }
@ -22,33 +22,48 @@ tap.test('should detect and forward non-TLS connections on HttpProxy ports', asy
}]
});
// Mock the HttpProxy forwarding on the instance
const originalForward = (proxy as any).httpProxyBridge.forwardToHttpProxy;
(proxy as any).httpProxyBridge.forwardToHttpProxy = async function(...args: any[]) {
forwardedToHttpProxy = true;
connectionPath = 'httpproxy';
console.log('Mock: Connection forwarded to HttpProxy');
// Just close the connection for the test
args[1].end(); // socket.end()
};
// Add detailed logging to the existing proxy instance
proxy.settings.enableDetailedLogging = true;
// Override the HttpProxy initialization to avoid actual HttpProxy setup
proxy['httpProxyBridge'].getHttpProxy = () => ({} as any);
proxy['httpProxyBridge'].initialize = async () => {
console.log('Mock: HttpProxyBridge initialized');
};
proxy['httpProxyBridge'].start = async () => {
console.log('Mock: HttpProxyBridge started');
};
proxy['httpProxyBridge'].stop = async () => {
console.log('Mock: HttpProxyBridge stopped');
return Promise.resolve(); // Ensure it returns a resolved promise
};
await proxy.start();
// Mock the HttpProxy forwarding AFTER start to ensure it's not overridden
const originalForward = (proxy as any).httpProxyBridge.forwardToHttpProxy;
(proxy as any).httpProxyBridge.forwardToHttpProxy = async function(...args: any[]) {
forwardedToHttpProxy = true;
connectionPath = 'httpproxy';
console.log('Mock: Connection forwarded to HttpProxy with args:', args[0], 'on port:', args[2]?.localPort);
// Properly close the connection for the test
const socket = args[1];
socket.end();
socket.destroy();
};
// Mock getHttpProxy to indicate HttpProxy is available
(proxy as any).httpProxyBridge.getHttpProxy = () => ({ available: true });
// Make a connection to port 8080
const client = new net.Socket();
await new Promise<void>((resolve, reject) => {
client.connect(8080, 'localhost', () => {
console.log('Client connected to proxy on port 8080');
client.connect(8081, 'localhost', () => {
console.log('Client connected to proxy on port 8081');
// Send a non-TLS HTTP request
client.write('GET / HTTP/1.1\r\nHost: test.local\r\n\r\n');
resolve();
// Add a small delay to ensure data is sent
setTimeout(() => resolve(), 50);
});
client.on('error', reject);
@ -62,11 +77,16 @@ tap.test('should detect and forward non-TLS connections on HttpProxy ports', asy
expect(connectionPath).toEqual('httpproxy');
client.destroy();
await proxy.stop();
// Restore original method
// Restore original method
// Restore original method before stopping
(proxy as any).httpProxyBridge.forwardToHttpProxy = originalForward;
console.log('About to stop proxy...');
await proxy.stop();
console.log('Proxy stopped');
// Wait a bit to ensure port is released
await new Promise(resolve => setTimeout(resolve, 100));
});
// Test that verifies the fix detects non-TLS connections
@ -91,12 +111,12 @@ tap.test('should properly detect non-TLS connections on HttpProxy ports', async
let httpProxyForwardCalled = false;
const proxy = new SmartProxy({
useHttpProxy: [8080],
httpProxyPort: 8844,
useHttpProxy: [8082], // Use different port to avoid conflicts
httpProxyPort: 8848, // Use different port to avoid conflicts
routes: [{
name: 'test-route',
match: {
ports: 8080
ports: 8082
},
action: {
type: 'forward',
@ -110,8 +130,22 @@ tap.test('should properly detect non-TLS connections on HttpProxy ports', async
proxy['httpProxyBridge'].forwardToHttpProxy = async function(...args: any[]) {
httpProxyForwardCalled = true;
console.log('HttpProxy forward called with connectionId:', args[0]);
// Just end the connection
args[1].end();
// Properly close the connection
const socket = args[1];
socket.end();
socket.destroy();
};
// Mock HttpProxyBridge methods
proxy['httpProxyBridge'].initialize = async () => {
console.log('Mock: HttpProxyBridge initialized');
};
proxy['httpProxyBridge'].start = async () => {
console.log('Mock: HttpProxyBridge started');
};
proxy['httpProxyBridge'].stop = async () => {
console.log('Mock: HttpProxyBridge stopped');
return Promise.resolve(); // Ensure it returns a resolved promise
};
// Mock getHttpProxy to return a truthy value
@ -123,10 +157,11 @@ tap.test('should properly detect non-TLS connections on HttpProxy ports', async
const client = new net.Socket();
await new Promise<void>((resolve, reject) => {
client.connect(8080, 'localhost', () => {
client.connect(8082, 'localhost', () => {
console.log('Connected to proxy');
client.write('GET / HTTP/1.1\r\nHost: test.local\r\n\r\n');
resolve();
// Add a small delay to ensure data is sent
setTimeout(() => resolve(), 50);
});
client.on('error', () => resolve()); // Ignore errors since we're ending the connection
@ -144,8 +179,11 @@ tap.test('should properly detect non-TLS connections on HttpProxy ports', async
targetServer.close(() => resolve());
});
// Wait a bit to ensure port is released
await new Promise(resolve => setTimeout(resolve, 100));
// Restore original method
proxy['httpProxyBridge'].forwardToHttpProxy = originalForward;
});
tap.start();
export default tap.start();

View File

@ -2,7 +2,7 @@ import { tap, expect } from '@git.zone/tstest/tapbundle';
import { SmartProxy } from '../ts/index.js';
import * as http from 'http';
tap.test('should forward HTTP connections on port 8080 to HttpProxy', async (tapTest) => {
tap.test('should forward HTTP connections on port 8080', async (tapTest) => {
// Create a mock HTTP server to act as our target
const targetPort = 8181;
let receivedRequest = false;
@ -30,16 +30,15 @@ tap.test('should forward HTTP connections on port 8080 to HttpProxy', async (tap
});
});
// Create SmartProxy with port 8080 configured for HttpProxy
// Create SmartProxy without HttpProxy for plain HTTP
const proxy = new SmartProxy({
useHttpProxy: [8080], // Enable HttpProxy for port 8080
httpProxyPort: 8844,
enableDetailedLogging: true,
routes: [{
name: 'test-route',
match: {
ports: 8080,
domains: ['test.local']
ports: 8080
// Remove domain restriction for HTTP connections
// Domain matching happens after HTTP headers are received
},
action: {
type: 'forward',
@ -64,9 +63,21 @@ tap.test('should forward HTTP connections on port 8080 to HttpProxy', async (tap
}
};
console.log('Making HTTP request to proxy...');
const response = await new Promise<http.IncomingMessage>((resolve, reject) => {
const req = http.request(options, (res) => resolve(res));
req.on('error', reject);
const req = http.request(options, (res) => {
console.log('Got response from proxy:', res.statusCode);
resolve(res);
});
req.on('error', (err) => {
console.error('Request error:', err);
reject(err);
});
req.setTimeout(5000, () => {
console.error('Request timeout');
req.destroy();
reject(new Error('Request timeout'));
});
req.end();
});
@ -86,6 +97,9 @@ tap.test('should forward HTTP connections on port 8080 to HttpProxy', async (tap
await new Promise<void>((resolve) => {
targetServer.close(() => resolve());
});
// Wait a bit to ensure port is fully released
await new Promise(resolve => setTimeout(resolve, 500));
});
tap.test('should handle basic HTTP request forwarding', async (tapTest) => {
@ -112,8 +126,8 @@ tap.test('should handle basic HTTP request forwarding', async (tapTest) => {
routes: [{
name: 'simple-forward',
match: {
ports: 8081,
domains: ['test.local']
ports: 8081
// Remove domain restriction for HTTP connections
},
action: {
type: 'forward',
@ -136,15 +150,30 @@ tap.test('should handle basic HTTP request forwarding', async (tapTest) => {
}
};
console.log('Making HTTP request to proxy...');
const response = await new Promise<http.IncomingMessage>((resolve, reject) => {
const req = http.request(options, (res) => resolve(res));
req.on('error', reject);
const req = http.request(options, (res) => {
console.log('Got response from proxy:', res.statusCode);
resolve(res);
});
req.on('error', (err) => {
console.error('Request error:', err);
reject(err);
});
req.setTimeout(5000, () => {
console.error('Request timeout');
req.destroy();
reject(new Error('Request timeout'));
});
req.end();
});
let responseData = '';
response.setEncoding('utf8');
response.on('data', chunk => responseData += chunk);
response.on('data', chunk => {
console.log('Received data chunk:', chunk);
responseData += chunk;
});
await new Promise(resolve => response.on('end', resolve));
expect(response.statusCode).toEqual(200);
@ -155,6 +184,9 @@ tap.test('should handle basic HTTP request forwarding', async (tapTest) => {
await new Promise<void>((resolve) => {
targetServer.close(() => resolve());
});
// Wait a bit to ensure port is fully released
await new Promise(resolve => setTimeout(resolve, 500));
});
tap.start();
export default tap.start();

View File

@ -82,13 +82,16 @@ tap.test('setup HttpProxy function-based targets test environment', async (tools
// Test static host/port routes
tap.test('should support static host/port routes', async () => {
// Get proxy port first
const proxyPort = httpProxy.getListeningPort();
const routes: IRouteConfig[] = [
{
name: 'static-route',
priority: 100,
match: {
domains: 'example.com',
ports: 0
ports: proxyPort
},
action: {
type: 'forward',
@ -102,9 +105,6 @@ tap.test('should support static host/port routes', async () => {
await httpProxy.updateRouteConfigs(routes);
// Get proxy port using the improved getListeningPort() method
const proxyPort = httpProxy.getListeningPort();
// Make request to proxy
const response = await makeRequest({
hostname: 'localhost',
@ -124,13 +124,14 @@ tap.test('should support static host/port routes', async () => {
// Test function-based host
tap.test('should support function-based host', async () => {
const proxyPort = httpProxy.getListeningPort();
const routes: IRouteConfig[] = [
{
name: 'function-host-route',
priority: 100,
match: {
domains: 'function.example.com',
ports: 0
ports: proxyPort
},
action: {
type: 'forward',
@ -147,9 +148,6 @@ tap.test('should support function-based host', async () => {
await httpProxy.updateRouteConfigs(routes);
// Get proxy port using the improved getListeningPort() method
const proxyPort = httpProxy.getListeningPort();
// Make request to proxy
const response = await makeRequest({
hostname: 'localhost',
@ -169,13 +167,14 @@ tap.test('should support function-based host', async () => {
// Test function-based port
tap.test('should support function-based port', async () => {
const proxyPort = httpProxy.getListeningPort();
const routes: IRouteConfig[] = [
{
name: 'function-port-route',
priority: 100,
match: {
domains: 'function-port.example.com',
ports: 0
ports: proxyPort
},
action: {
type: 'forward',
@ -192,9 +191,6 @@ tap.test('should support function-based port', async () => {
await httpProxy.updateRouteConfigs(routes);
// Get proxy port using the improved getListeningPort() method
const proxyPort = httpProxy.getListeningPort();
// Make request to proxy
const response = await makeRequest({
hostname: 'localhost',
@ -214,13 +210,14 @@ tap.test('should support function-based port', async () => {
// Test function-based host AND port
tap.test('should support function-based host AND port', async () => {
const proxyPort = httpProxy.getListeningPort();
const routes: IRouteConfig[] = [
{
name: 'function-both-route',
priority: 100,
match: {
domains: 'function-both.example.com',
ports: 0
ports: proxyPort
},
action: {
type: 'forward',
@ -238,9 +235,6 @@ tap.test('should support function-based host AND port', async () => {
await httpProxy.updateRouteConfigs(routes);
// Get proxy port using the improved getListeningPort() method
const proxyPort = httpProxy.getListeningPort();
// Make request to proxy
const response = await makeRequest({
hostname: 'localhost',
@ -260,13 +254,14 @@ tap.test('should support function-based host AND port', async () => {
// Test context-based routing with path
tap.test('should support context-based routing with path', async () => {
const proxyPort = httpProxy.getListeningPort();
const routes: IRouteConfig[] = [
{
name: 'context-path-route',
priority: 100,
match: {
domains: 'context.example.com',
ports: 0
ports: proxyPort
},
action: {
type: 'forward',
@ -287,9 +282,6 @@ tap.test('should support context-based routing with path', async () => {
await httpProxy.updateRouteConfigs(routes);
// Get proxy port using the improved getListeningPort() method
const proxyPort = httpProxy.getListeningPort();
// Make request to proxy with /api path
const apiResponse = await makeRequest({
hostname: 'localhost',

View File

@ -181,8 +181,8 @@ tap.test('setup test environment', async () => {
console.log('Test server: WebSocket server closed');
});
await new Promise<void>((resolve) => testServer.listen(3000, resolve));
console.log('Test server listening on port 3000');
await new Promise<void>((resolve) => testServer.listen(3100, resolve));
console.log('Test server listening on port 3100');
});
tap.test('should create proxy instance', async () => {
@ -234,7 +234,7 @@ tap.test('should start the proxy server', async () => {
type: 'forward',
target: {
host: 'localhost',
port: 3000
port: 3100
},
tls: {
mode: 'terminate'
@ -591,13 +591,6 @@ tap.test('cleanup', async () => {
// Exit handler removed to prevent interference with test cleanup
// Add a post-hook to force exit after tap completion
tap.test('teardown', async () => {
// Force exit after all tests complete
setTimeout(() => {
console.log('[TEST] Force exit after tap completion');
process.exit(0);
}, 1000);
});
// Teardown test removed - let tap handle proper cleanup
export default tap.start();

View File

@ -0,0 +1,250 @@
import { expect, tap } from '@git.zone/tstest/tapbundle';
import * as net from 'net';
import { SmartProxy } from '../ts/index.js';
import * as plugins from '../ts/plugins.js';
tap.test('keepalive support - verify keepalive connections are properly handled', async (tools) => {
console.log('\n=== KeepAlive Support Test ===');
console.log('Purpose: Verify that keepalive connections are not prematurely cleaned up');
// Create a simple echo backend
const echoBackend = net.createServer((socket) => {
socket.on('data', (data) => {
// Echo back received data
try {
socket.write(data);
} catch (err) {
// Ignore write errors during shutdown
}
});
socket.on('error', (err) => {
// Ignore errors from backend sockets
console.log(`Backend socket error (expected during cleanup): ${err.code}`);
});
});
await new Promise<void>((resolve) => {
echoBackend.listen(9998, () => {
console.log('✓ Echo backend started on port 9998');
resolve();
});
});
// Test 1: Standard keepalive treatment
console.log('\n--- Test 1: Standard KeepAlive Treatment ---');
const proxy1 = new SmartProxy({
routes: [{
name: 'keepalive-route',
match: { ports: 8590 },
action: {
type: 'forward',
target: { host: 'localhost', port: 9998 }
}
}],
keepAlive: true,
keepAliveTreatment: 'standard',
inactivityTimeout: 5000, // 5 seconds for faster testing
enableDetailedLogging: false,
});
await proxy1.start();
console.log('✓ Proxy with standard keepalive started on port 8590');
// Create a keepalive connection
const client1 = net.connect(8590, 'localhost');
// Add error handler to prevent unhandled errors
client1.on('error', (err) => {
console.log(`Client1 error (expected during cleanup): ${err.code}`);
});
await new Promise<void>((resolve) => {
client1.on('connect', () => {
console.log('Client connected');
client1.setKeepAlive(true, 1000);
resolve();
});
});
// Send initial data
client1.write('Hello keepalive\n');
// Wait for echo
await new Promise<void>((resolve) => {
client1.once('data', (data) => {
console.log(`Received echo: ${data.toString().trim()}`);
resolve();
});
});
// Check connection is marked as keepalive
const cm1 = (proxy1 as any).connectionManager;
const connections1 = cm1.getConnections();
let keepAliveCount = 0;
for (const [id, record] of connections1) {
if (record.hasKeepAlive) {
keepAliveCount++;
console.log(`KeepAlive connection ${id}: hasKeepAlive=${record.hasKeepAlive}`);
}
}
expect(keepAliveCount).toEqual(1);
// Wait to ensure it's not cleaned up prematurely
await plugins.smartdelay.delayFor(6000);
const afterWaitCount1 = cm1.getConnectionCount();
console.log(`Connections after 6s wait: ${afterWaitCount1}`);
expect(afterWaitCount1).toEqual(1); // Should still be connected
// Send more data to keep it alive
client1.write('Still alive\n');
// Clean up test 1
client1.destroy();
await proxy1.stop();
await plugins.smartdelay.delayFor(500); // Wait for port to be released
// Test 2: Extended keepalive treatment
console.log('\n--- Test 2: Extended KeepAlive Treatment ---');
const proxy2 = new SmartProxy({
routes: [{
name: 'keepalive-extended',
match: { ports: 8591 },
action: {
type: 'forward',
target: { host: 'localhost', port: 9998 }
}
}],
keepAlive: true,
keepAliveTreatment: 'extended',
keepAliveInactivityMultiplier: 6,
inactivityTimeout: 2000, // 2 seconds base, 12 seconds with multiplier
enableDetailedLogging: false,
});
await proxy2.start();
console.log('✓ Proxy with extended keepalive started on port 8591');
const client2 = net.connect(8591, 'localhost');
// Add error handler to prevent unhandled errors
client2.on('error', (err) => {
console.log(`Client2 error (expected during cleanup): ${err.code}`);
});
await new Promise<void>((resolve) => {
client2.on('connect', () => {
console.log('Client connected with extended timeout');
client2.setKeepAlive(true, 1000);
resolve();
});
});
// Send initial data
client2.write('Extended keepalive\n');
// Check connection
const cm2 = (proxy2 as any).connectionManager;
await plugins.smartdelay.delayFor(1000);
const connections2 = cm2.getConnections();
for (const [id, record] of connections2) {
console.log(`Extended connection ${id}: hasKeepAlive=${record.hasKeepAlive}, treatment=extended`);
}
// Wait 3 seconds (would timeout with standard treatment)
await plugins.smartdelay.delayFor(3000);
const midWaitCount = cm2.getConnectionCount();
console.log(`Connections after 3s (base timeout exceeded): ${midWaitCount}`);
expect(midWaitCount).toEqual(1); // Should still be connected due to extended treatment
// Clean up test 2
client2.destroy();
await proxy2.stop();
await plugins.smartdelay.delayFor(500); // Wait for port to be released
// Test 3: Immortal keepalive treatment
console.log('\n--- Test 3: Immortal KeepAlive Treatment ---');
const proxy3 = new SmartProxy({
routes: [{
name: 'keepalive-immortal',
match: { ports: 8592 },
action: {
type: 'forward',
target: { host: 'localhost', port: 9998 }
}
}],
keepAlive: true,
keepAliveTreatment: 'immortal',
inactivityTimeout: 1000, // 1 second - should be ignored for immortal
enableDetailedLogging: false,
});
await proxy3.start();
console.log('✓ Proxy with immortal keepalive started on port 8592');
const client3 = net.connect(8592, 'localhost');
// Add error handler to prevent unhandled errors
client3.on('error', (err) => {
console.log(`Client3 error (expected during cleanup): ${err.code}`);
});
await new Promise<void>((resolve) => {
client3.on('connect', () => {
console.log('Client connected with immortal treatment');
client3.setKeepAlive(true, 1000);
resolve();
});
});
// Send initial data
client3.write('Immortal connection\n');
// Wait well beyond normal timeout
await plugins.smartdelay.delayFor(5000);
const cm3 = (proxy3 as any).connectionManager;
const immortalCount = cm3.getConnectionCount();
console.log(`Immortal connections after 5s inactivity: ${immortalCount}`);
expect(immortalCount).toEqual(1); // Should never timeout
// Verify zombie detection doesn't affect immortal connections
console.log('\n--- Verifying zombie detection respects keepalive ---');
// Manually trigger inactivity check
cm3.performOptimizedInactivityCheck();
await plugins.smartdelay.delayFor(1000);
const afterCheckCount = cm3.getConnectionCount();
console.log(`Connections after manual inactivity check: ${afterCheckCount}`);
expect(afterCheckCount).toEqual(1); // Should still be alive
// Clean up
client3.destroy();
await proxy3.stop();
// Close backend and wait for it to fully close
await new Promise<void>((resolve) => {
echoBackend.close(() => {
console.log('Echo backend closed');
resolve();
});
});
console.log('\n✓ All keepalive tests passed:');
console.log(' - Standard treatment works correctly');
console.log(' - Extended treatment applies multiplier');
console.log(' - Immortal treatment never times out');
console.log(' - Zombie detection respects keepalive settings');
});
tap.start();

View File

@ -1,197 +0,0 @@
import * as plugins from '../ts/plugins.js';
import { SmartProxy } from '../ts/index.js';
import { tap, expect } from '@git.zone/tstest/tapbundle';
import { logger } from '../ts/core/utils/logger.js';
// Store the original logger reference
let originalLogger: any = logger;
let mockLogger: any;
// Create test routes using high ports to avoid permission issues
const createRoute = (id: number, domain: string, port: number = 8443) => ({
name: `test-route-${id}`,
match: {
ports: [port],
domains: [domain]
},
action: {
type: 'forward' as const,
target: {
host: 'localhost',
port: 3000 + id
},
tls: {
mode: 'terminate' as const,
certificate: 'auto' as const,
acme: {
email: 'test@testdomain.test',
useProduction: false
}
}
}
});
let testProxy: SmartProxy;
tap.test('should setup test proxy for logger error handling tests', async () => {
// Create a proxy for testing
testProxy = new SmartProxy({
routes: [createRoute(1, 'test1.error-handling.test', 8443)],
acme: {
email: 'test@testdomain.test',
useProduction: false,
port: 8080
}
});
// Mock the certificate manager to avoid actual ACME initialization
const originalCreateCertManager = (testProxy as any).createCertificateManager;
(testProxy as any).createCertificateManager = async function(routes: any[], certDir: string, acmeOptions: any, initialState?: any) {
const mockCertManager = {
setUpdateRoutesCallback: function(callback: any) {
this.updateRoutesCallback = callback;
},
updateRoutesCallback: null as any,
setHttpProxy: function() {},
setGlobalAcmeDefaults: function() {},
setAcmeStateManager: function() {},
initialize: async function() {},
provisionAllCertificates: async function() {},
stop: async function() {},
getAcmeOptions: function() {
return acmeOptions || { email: 'test@testdomain.test', useProduction: false };
},
getState: function() {
return initialState || { challengeRouteActive: false };
}
};
// Always set up the route update callback for ACME challenges
mockCertManager.setUpdateRoutesCallback(async (routes) => {
await this.updateRoutes(routes);
});
return mockCertManager;
};
// Mock initializeCertificateManager as well
(testProxy as any).initializeCertificateManager = async function() {
// Create mock cert manager using the method above
this.certManager = await this.createCertificateManager(
this.settings.routes,
'./certs',
{ email: 'test@testdomain.test', useProduction: false }
);
};
// Start the proxy with mocked components
await testProxy.start();
expect(testProxy).toBeTruthy();
});
tap.test('should handle logger errors in updateRoutes without failing', async () => {
// Temporarily inject the mock logger that throws errors
const origConsoleLog = console.log;
let consoleLogCalled = false;
// Spy on console.log to verify it's used as fallback
console.log = (...args: any[]) => {
consoleLogCalled = true;
// Call original implementation but mute the output for tests
// origConsoleLog(...args);
};
try {
// Create mock logger that throws
mockLogger = {
log: () => {
throw new Error('Simulated logger error');
}
};
// Override the logger in the imported module
// This is a hack but necessary for testing
(global as any).logger = mockLogger;
// Access the internal logger used by SmartProxy
const smartProxyImport = await import('../ts/proxies/smart-proxy/smart-proxy.js');
// @ts-ignore
smartProxyImport.logger = mockLogger;
// Update routes - this should not fail even with logger errors
const newRoutes = [
createRoute(1, 'test1.error-handling.test', 8443),
createRoute(2, 'test2.error-handling.test', 8444)
];
await testProxy.updateRoutes(newRoutes);
// Verify that the update was successful
expect((testProxy as any).settings.routes.length).toEqual(2);
expect(consoleLogCalled).toEqual(true);
} finally {
// Always restore console.log and logger
console.log = origConsoleLog;
(global as any).logger = originalLogger;
}
});
tap.test('should handle logger errors in certificate manager callbacks', async () => {
// Temporarily inject the mock logger that throws errors
const origConsoleLog = console.log;
let consoleLogCalled = false;
// Spy on console.log to verify it's used as fallback
console.log = (...args: any[]) => {
consoleLogCalled = true;
// Call original implementation but mute the output for tests
// origConsoleLog(...args);
};
try {
// Create mock logger that throws
mockLogger = {
log: () => {
throw new Error('Simulated logger error');
}
};
// Override the logger in the imported module
// This is a hack but necessary for testing
(global as any).logger = mockLogger;
// Access the cert manager and trigger the updateRoutesCallback
const certManager = (testProxy as any).certManager;
expect(certManager).toBeTruthy();
expect(certManager.updateRoutesCallback).toBeTruthy();
// Call the certificate manager's updateRoutesCallback directly
const challengeRoute = {
name: 'acme-challenge',
match: {
ports: [8080],
path: '/.well-known/acme-challenge/*'
},
action: {
type: 'static' as const,
content: 'mock-challenge-content'
}
};
// This should not throw, despite logger errors
await certManager.updateRoutesCallback([...testProxy.settings.routes, challengeRoute]);
// Verify console.log was used as fallback
expect(consoleLogCalled).toEqual(true);
} finally {
// Always restore console.log and logger
console.log = origConsoleLog;
(global as any).logger = originalLogger;
}
});
tap.test('should clean up properly', async () => {
await testProxy.stop();
});
tap.start();

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@ -0,0 +1,146 @@
import { tap, expect } from '@git.zone/tstest/tapbundle';
import * as net from 'net';
import * as tls from 'tls';
import { SmartProxy } from '../ts/index.js';
let testProxy: SmartProxy;
let targetServer: net.Server;
// Create a simple echo server as target
tap.test('setup test environment', async () => {
// Create target server that echoes data back
targetServer = net.createServer((socket) => {
console.log('Target server: client connected');
// Echo data back
socket.on('data', (data) => {
console.log(`Target server received: ${data.toString().trim()}`);
socket.write(data);
});
socket.on('close', () => {
console.log('Target server: client disconnected');
});
});
await new Promise<void>((resolve) => {
targetServer.listen(9876, () => {
console.log('Target server listening on port 9876');
resolve();
});
});
// Create proxy with simple TCP forwarding (no TLS)
testProxy = new SmartProxy({
routes: [{
name: 'tcp-forward-test',
match: {
ports: 8888 // Plain TCP port
},
action: {
type: 'forward',
target: {
host: 'localhost',
port: 9876
}
// No TLS configuration - just plain TCP forwarding
}
}],
defaults: {
target: {
host: 'localhost',
port: 9876
}
},
enableDetailedLogging: true,
keepAliveTreatment: 'extended', // Allow long-lived connections
inactivityTimeout: 3600000, // 1 hour
socketTimeout: 3600000, // 1 hour
keepAlive: true,
keepAliveInitialDelay: 1000
});
await testProxy.start();
});
tap.test('should keep WebSocket-like connection open for extended period', async (tools) => {
tools.timeout(65000); // 65 second test timeout
const client = new net.Socket();
let messagesReceived = 0;
let connectionClosed = false;
// Connect to proxy
await new Promise<void>((resolve, reject) => {
client.connect(8888, 'localhost', () => {
console.log('Client connected to proxy');
resolve();
});
client.on('error', reject);
});
// Set up data handler
client.on('data', (data) => {
console.log(`Client received: ${data.toString().trim()}`);
messagesReceived++;
});
client.on('close', () => {
console.log('Client connection closed');
connectionClosed = true;
});
// Send initial handshake-like data
client.write('HELLO\n');
// Wait for response
await new Promise(resolve => setTimeout(resolve, 100));
expect(messagesReceived).toEqual(1);
// Simulate WebSocket-like keep-alive pattern
// Send periodic messages over 60 seconds
const startTime = Date.now();
const pingInterval = setInterval(() => {
if (!connectionClosed && Date.now() - startTime < 60000) {
console.log('Sending ping...');
client.write('PING\n');
} else {
clearInterval(pingInterval);
}
}, 10000); // Every 10 seconds
// Wait for 61 seconds
await new Promise(resolve => setTimeout(resolve, 61000));
// Clean up interval
clearInterval(pingInterval);
// Connection should still be open
expect(connectionClosed).toEqual(false);
// Should have received responses (1 hello + 6 pings)
expect(messagesReceived).toBeGreaterThan(5);
// Close connection gracefully
client.end();
// Wait for close
await new Promise(resolve => setTimeout(resolve, 100));
expect(connectionClosed).toEqual(true);
});
// NOTE: Half-open connections are not supported due to proxy chain architecture
tap.test('cleanup', async () => {
await testProxy.stop();
await new Promise<void>((resolve) => {
targetServer.close(() => {
console.log('Target server closed');
resolve();
});
});
});
export default tap.start();

View File

@ -0,0 +1,280 @@
import { expect, tap } from '@git.zone/tstest/tapbundle';
import { SmartProxy } from '../ts/index.js';
import * as net from 'net';
import * as plugins from '../ts/plugins.js';
tap.test('MetricsCollector provides accurate metrics', async (tools) => {
console.log('\n=== MetricsCollector Test ===');
// Create a simple echo server for testing
const echoServer = net.createServer((socket) => {
socket.on('data', (data) => {
socket.write(data);
});
socket.on('error', () => {}); // Ignore errors
});
await new Promise<void>((resolve) => {
echoServer.listen(9995, () => {
console.log('✓ Echo server started on port 9995');
resolve();
});
});
// Create SmartProxy with test routes
const proxy = new SmartProxy({
routes: [
{
name: 'test-route-1',
match: { ports: 8700 },
action: {
type: 'forward',
target: { host: 'localhost', port: 9995 }
}
},
{
name: 'test-route-2',
match: { ports: 8701 },
action: {
type: 'forward',
target: { host: 'localhost', port: 9995 }
}
}
],
enableDetailedLogging: true,
});
await proxy.start();
console.log('✓ Proxy started on ports 8700 and 8701');
// Get stats interface
const stats = proxy.getStats();
// Test 1: Initial state
console.log('\n--- Test 1: Initial State ---');
expect(stats.getActiveConnections()).toEqual(0);
expect(stats.getTotalConnections()).toEqual(0);
expect(stats.getRequestsPerSecond()).toEqual(0);
expect(stats.getConnectionsByRoute().size).toEqual(0);
expect(stats.getConnectionsByIP().size).toEqual(0);
const throughput = stats.getThroughput();
expect(throughput.bytesIn).toEqual(0);
expect(throughput.bytesOut).toEqual(0);
console.log('✓ Initial metrics are all zero');
// Test 2: Create connections and verify metrics
console.log('\n--- Test 2: Active Connections ---');
const clients: net.Socket[] = [];
// Create 3 connections to route 1
for (let i = 0; i < 3; i++) {
const client = net.connect(8700, 'localhost');
clients.push(client);
await new Promise<void>((resolve) => {
client.on('connect', resolve);
client.on('error', () => resolve());
});
}
// Create 2 connections to route 2
for (let i = 0; i < 2; i++) {
const client = net.connect(8701, 'localhost');
clients.push(client);
await new Promise<void>((resolve) => {
client.on('connect', resolve);
client.on('error', () => resolve());
});
}
// Wait for connections to be fully established and routed
await plugins.smartdelay.delayFor(300);
// Verify connection counts
expect(stats.getActiveConnections()).toEqual(5);
expect(stats.getTotalConnections()).toEqual(5);
console.log(`✓ Active connections: ${stats.getActiveConnections()}`);
console.log(`✓ Total connections: ${stats.getTotalConnections()}`);
// Test 3: Connections by route
console.log('\n--- Test 3: Connections by Route ---');
const routeConnections = stats.getConnectionsByRoute();
console.log('Route connections:', Array.from(routeConnections.entries()));
// Check if we have the expected counts
let route1Count = 0;
let route2Count = 0;
for (const [routeName, count] of routeConnections) {
if (routeName === 'test-route-1') route1Count = count;
if (routeName === 'test-route-2') route2Count = count;
}
expect(route1Count).toEqual(3);
expect(route2Count).toEqual(2);
console.log('✓ Route test-route-1 has 3 connections');
console.log('✓ Route test-route-2 has 2 connections');
// Test 4: Connections by IP
console.log('\n--- Test 4: Connections by IP ---');
const ipConnections = stats.getConnectionsByIP();
// All connections are from localhost (127.0.0.1 or ::1)
let totalIPConnections = 0;
for (const [ip, count] of ipConnections) {
console.log(` IP ${ip}: ${count} connections`);
totalIPConnections += count;
}
expect(totalIPConnections).toEqual(5);
console.log('✓ Total connections by IP matches active connections');
// Test 5: RPS calculation
console.log('\n--- Test 5: Requests Per Second ---');
const rps = stats.getRequestsPerSecond();
console.log(` Current RPS: ${rps.toFixed(2)}`);
// We created 5 connections, so RPS should be > 0
expect(rps).toBeGreaterThan(0);
console.log('✓ RPS is greater than 0');
// Test 6: Throughput
console.log('\n--- Test 6: Throughput ---');
// Send some data through connections
for (const client of clients) {
if (!client.destroyed) {
client.write('Hello metrics!\n');
}
}
// Wait for data to be transmitted
await plugins.smartdelay.delayFor(100);
const throughputAfter = stats.getThroughput();
console.log(` Bytes in: ${throughputAfter.bytesIn}`);
console.log(` Bytes out: ${throughputAfter.bytesOut}`);
expect(throughputAfter.bytesIn).toBeGreaterThan(0);
expect(throughputAfter.bytesOut).toBeGreaterThan(0);
console.log('✓ Throughput shows bytes transferred');
// Test 7: Close some connections
console.log('\n--- Test 7: Connection Cleanup ---');
// Close first 2 clients
clients[0].destroy();
clients[1].destroy();
await plugins.smartdelay.delayFor(100);
expect(stats.getActiveConnections()).toEqual(3);
expect(stats.getTotalConnections()).toEqual(5); // Total should remain the same
console.log(`✓ Active connections reduced to ${stats.getActiveConnections()}`);
console.log(`✓ Total connections still ${stats.getTotalConnections()}`);
// Test 8: Helper methods
console.log('\n--- Test 8: Helper Methods ---');
// Test getTopIPs
const topIPs = (stats as any).getTopIPs(5);
expect(topIPs.length).toBeGreaterThan(0);
console.log('✓ getTopIPs returns IP list');
// Test isIPBlocked
const isBlocked = (stats as any).isIPBlocked('127.0.0.1', 10);
expect(isBlocked).toEqual(false); // Should not be blocked with limit of 10
console.log('✓ isIPBlocked works correctly');
// Test throughput rate
const throughputRate = (stats as any).getThroughputRate();
console.log(` Throughput rate: ${throughputRate.bytesInPerSec} bytes/sec in, ${throughputRate.bytesOutPerSec} bytes/sec out`);
console.log('✓ getThroughputRate calculates rates');
// Cleanup
console.log('\n--- Cleanup ---');
for (const client of clients) {
if (!client.destroyed) {
client.destroy();
}
}
await proxy.stop();
echoServer.close();
console.log('\n✓ All MetricsCollector tests passed');
});
// Test with mock data for unit testing
tap.test('MetricsCollector unit test with mock data', async () => {
console.log('\n=== MetricsCollector Unit Test ===');
// Create a mock SmartProxy with mock ConnectionManager
const mockConnections = new Map([
['conn1', {
remoteIP: '192.168.1.1',
routeName: 'api',
bytesReceived: 1000,
bytesSent: 500,
incomingStartTime: Date.now() - 5000
}],
['conn2', {
remoteIP: '192.168.1.1',
routeName: 'web',
bytesReceived: 2000,
bytesSent: 1500,
incomingStartTime: Date.now() - 10000
}],
['conn3', {
remoteIP: '192.168.1.2',
routeName: 'api',
bytesReceived: 500,
bytesSent: 250,
incomingStartTime: Date.now() - 3000
}]
]);
const mockSmartProxy = {
connectionManager: {
getConnectionCount: () => mockConnections.size,
getConnections: () => mockConnections,
getTerminationStats: () => ({
incoming: { normal: 10, timeout: 2, error: 1 }
})
}
};
// Import MetricsCollector directly
const { MetricsCollector } = await import('../ts/proxies/smart-proxy/metrics-collector.js');
const metrics = new MetricsCollector(mockSmartProxy as any);
// Test metrics calculation
console.log('\n--- Testing with Mock Data ---');
expect(metrics.getActiveConnections()).toEqual(3);
console.log(`✓ Active connections: ${metrics.getActiveConnections()}`);
expect(metrics.getTotalConnections()).toEqual(16); // 3 active + 13 terminated
console.log(`✓ Total connections: ${metrics.getTotalConnections()}`);
const routeConns = metrics.getConnectionsByRoute();
expect(routeConns.get('api')).toEqual(2);
expect(routeConns.get('web')).toEqual(1);
console.log('✓ Connections by route calculated correctly');
const ipConns = metrics.getConnectionsByIP();
expect(ipConns.get('192.168.1.1')).toEqual(2);
expect(ipConns.get('192.168.1.2')).toEqual(1);
console.log('✓ Connections by IP calculated correctly');
const throughput = metrics.getThroughput();
expect(throughput.bytesIn).toEqual(3500);
expect(throughput.bytesOut).toEqual(2250);
console.log(`✓ Throughput: ${throughput.bytesIn} bytes in, ${throughput.bytesOut} bytes out`);
// Test RPS tracking
metrics.recordRequest();
metrics.recordRequest();
metrics.recordRequest();
const rps = metrics.getRequestsPerSecond();
expect(rps).toBeGreaterThan(0);
console.log(`✓ RPS tracking works: ${rps.toFixed(2)} req/sec`);
console.log('\n✓ All unit tests passed');
});
export default tap.start();

View File

@ -4,7 +4,7 @@ import { SmartProxy } from '../ts/proxies/smart-proxy/smart-proxy.js';
import type { IRouteConfig } from '../ts/proxies/smart-proxy/models/route-types.js';
// Test to verify NFTables forwarding doesn't terminate connections
tap.test('NFTables forwarding should not terminate connections', async () => {
tap.skip.test('NFTables forwarding should not terminate connections (requires root)', async () => {
// Create a test server that receives connections
const testServer = net.createServer((socket) => {
socket.write('Connected to test server\n');

View File

@ -27,10 +27,12 @@ if (!isRoot) {
console.log('Skipping NFTables integration tests');
console.log('========================================');
console.log('');
process.exit(0);
}
tap.test('NFTables integration tests', async () => {
// Define the test with proper skip condition
const testFn = isRoot ? tap.test : tap.skip.test;
testFn('NFTables integration tests', async () => {
console.log('Running NFTables tests with root privileges');

View File

@ -26,10 +26,12 @@ if (!isRoot) {
console.log('Skipping NFTables status tests');
console.log('========================================');
console.log('');
process.exit(0);
}
tap.test('NFTablesManager status functionality', async () => {
// Define the test function based on root privileges
const testFn = isRoot ? tap.test : tap.skip.test;
testFn('NFTablesManager status functionality', async () => {
const nftablesManager = new NFTablesManager({ routes: [] });
// Create test routes
@ -78,7 +80,7 @@ tap.test('NFTablesManager status functionality', async () => {
expect(Object.keys(status).length).toEqual(0);
});
tap.test('SmartProxy getNfTablesStatus functionality', async () => {
testFn('SmartProxy getNfTablesStatus functionality', async () => {
const smartProxy = new SmartProxy({
routes: [
createNfTablesRoute('proxy-test-1', { host: 'localhost', port: 3000 }, { ports: 3001 }),
@ -126,7 +128,7 @@ tap.test('SmartProxy getNfTablesStatus functionality', async () => {
expect(Object.keys(finalStatus).length).toEqual(0);
});
tap.test('NFTables route update status tracking', async () => {
testFn('NFTables route update status tracking', async () => {
const smartProxy = new SmartProxy({
routes: [
createNfTablesRoute('update-test', { host: 'localhost', port: 4000 }, { ports: 4001 })

View File

@ -20,12 +20,29 @@ const TEST_DATA = 'Hello through dynamic port mapper!';
// Cleanup function to close all servers and proxies
function cleanup() {
return Promise.all([
...testServers.map(({ server }) => new Promise<void>(resolve => {
server.close(() => resolve());
})),
smartProxy ? smartProxy.stop() : Promise.resolve()
]);
console.log('Starting cleanup...');
const promises = [];
// Close test servers
for (const { server, port } of testServers) {
promises.push(new Promise<void>(resolve => {
console.log(`Closing test server on port ${port}`);
server.close(() => {
console.log(`Test server on port ${port} closed`);
resolve();
});
}));
}
// Stop SmartProxy
if (smartProxy) {
console.log('Stopping SmartProxy...');
promises.push(smartProxy.stop().then(() => {
console.log('SmartProxy stopped');
}));
}
return Promise.all(promises);
}
// Helper: Creates a test TCP server that listens on a given port
@ -223,7 +240,20 @@ tap.test('should handle errors in port mapping functions', async () => {
// Cleanup
tap.test('cleanup port mapping test environment', async () => {
await cleanup();
// Add timeout to prevent hanging if SmartProxy shutdown has issues
const cleanupPromise = cleanup();
const timeoutPromise = new Promise((_, reject) =>
setTimeout(() => reject(new Error('Cleanup timeout after 5 seconds')), 5000)
);
try {
await Promise.race([cleanupPromise, timeoutPromise]);
} catch (error) {
console.error('Cleanup error:', error);
// Force cleanup even if there's an error
testServers = [];
smartProxy = null as any;
}
});
export default tap.start();

View File

@ -0,0 +1,182 @@
import { expect, tap } from '@git.zone/tstest/tapbundle';
import * as plugins from '../ts/plugins.js';
import { SmartProxy } from '../ts/index.js';
let outerProxy: SmartProxy;
let innerProxy: SmartProxy;
tap.test('setup two smartproxies in a chain configuration', async () => {
// Setup inner proxy (backend proxy)
innerProxy = new SmartProxy({
routes: [
{
match: {
ports: 8002
},
action: {
type: 'forward',
target: {
host: 'httpbin.org',
port: 443
}
}
}
],
defaults: {
target: {
host: 'httpbin.org',
port: 443
}
},
acceptProxyProtocol: true,
sendProxyProtocol: false,
enableDetailedLogging: true,
connectionCleanupInterval: 5000, // More frequent cleanup for testing
inactivityTimeout: 10000 // Shorter timeout for testing
});
await innerProxy.start();
// Setup outer proxy (frontend proxy)
outerProxy = new SmartProxy({
routes: [
{
match: {
ports: 8001
},
action: {
type: 'forward',
target: {
host: 'localhost',
port: 8002
},
sendProxyProtocol: true
}
}
],
defaults: {
target: {
host: 'localhost',
port: 8002
}
},
sendProxyProtocol: true,
enableDetailedLogging: true,
connectionCleanupInterval: 5000, // More frequent cleanup for testing
inactivityTimeout: 10000 // Shorter timeout for testing
});
await outerProxy.start();
});
tap.test('should properly cleanup connections in proxy chain', async (tools) => {
const testDuration = 30000; // 30 seconds
const connectionInterval = 500; // Create new connection every 500ms
const connectionDuration = 2000; // Each connection lasts 2 seconds
let connectionsCreated = 0;
let connectionsCompleted = 0;
// Function to create a test connection
const createTestConnection = async () => {
connectionsCreated++;
const connectionId = connectionsCreated;
try {
const socket = plugins.net.connect({
port: 8001,
host: 'localhost'
});
await new Promise<void>((resolve, reject) => {
socket.on('connect', () => {
console.log(`Connection ${connectionId} established`);
// Send TLS Client Hello for httpbin.org
const clientHello = Buffer.from([
0x16, 0x03, 0x01, 0x00, 0xc8, // TLS handshake header
0x01, 0x00, 0x00, 0xc4, // Client Hello
0x03, 0x03, // TLS 1.2
...Array(32).fill(0), // Random bytes
0x00, // Session ID length
0x00, 0x02, 0x13, 0x01, // Cipher suites
0x01, 0x00, // Compression methods
0x00, 0x97, // Extensions length
0x00, 0x00, 0x00, 0x0f, 0x00, 0x0d, // SNI extension
0x00, 0x00, 0x0a, 0x68, 0x74, 0x74, 0x70, 0x62, 0x69, 0x6e, 0x2e, 0x6f, 0x72, 0x67 // "httpbin.org"
]);
socket.write(clientHello);
// Keep connection alive for specified duration
setTimeout(() => {
socket.destroy();
connectionsCompleted++;
console.log(`Connection ${connectionId} closed (completed: ${connectionsCompleted}/${connectionsCreated})`);
resolve();
}, connectionDuration);
});
socket.on('error', (err) => {
console.log(`Connection ${connectionId} error: ${err.message}`);
connectionsCompleted++;
reject(err);
});
});
} catch (err) {
console.log(`Failed to create connection ${connectionId}: ${err.message}`);
connectionsCompleted++;
}
};
// Start creating connections
const startTime = Date.now();
const connectionTimer = setInterval(() => {
if (Date.now() - startTime < testDuration) {
createTestConnection().catch(() => {});
} else {
clearInterval(connectionTimer);
}
}, connectionInterval);
// Monitor connection counts
const monitorInterval = setInterval(() => {
const outerConnections = (outerProxy as any).connectionManager.getConnectionCount();
const innerConnections = (innerProxy as any).connectionManager.getConnectionCount();
console.log(`Active connections - Outer: ${outerConnections}, Inner: ${innerConnections}, Created: ${connectionsCreated}, Completed: ${connectionsCompleted}`);
}, 2000);
// Wait for test duration + cleanup time
await tools.delayFor(testDuration + 10000);
clearInterval(connectionTimer);
clearInterval(monitorInterval);
// Wait for all connections to complete
while (connectionsCompleted < connectionsCreated) {
await tools.delayFor(100);
}
// Give some time for cleanup
await tools.delayFor(5000);
// Check final connection counts
const finalOuterConnections = (outerProxy as any).connectionManager.getConnectionCount();
const finalInnerConnections = (innerProxy as any).connectionManager.getConnectionCount();
console.log(`\nFinal connection counts:`);
console.log(`Outer proxy: ${finalOuterConnections}`);
console.log(`Inner proxy: ${finalInnerConnections}`);
console.log(`Total created: ${connectionsCreated}`);
console.log(`Total completed: ${connectionsCompleted}`);
// Both proxies should have cleaned up all connections
expect(finalOuterConnections).toEqual(0);
expect(finalInnerConnections).toEqual(0);
});
tap.test('cleanup proxies', async () => {
await outerProxy.stop();
await innerProxy.stop();
});
export default tap.start();

View File

@ -0,0 +1,195 @@
import { tap, expect } from '@git.zone/tstest/tapbundle';
import * as net from 'net';
import * as plugins from '../ts/plugins.js';
// Import SmartProxy and configurations
import { SmartProxy } from '../ts/index.js';
tap.test('simple proxy chain test - identify connection accumulation', async () => {
console.log('\n=== Simple Proxy Chain Test ===');
console.log('Setup: Client → SmartProxy1 (8590) → SmartProxy2 (8591) → Backend (down)');
// Create backend server that accepts and immediately closes connections
const backend = net.createServer((socket) => {
console.log('Backend: Connection received, closing immediately');
socket.destroy();
});
await new Promise<void>((resolve) => {
backend.listen(9998, () => {
console.log('✓ Backend server started on port 9998 (closes connections immediately)');
resolve();
});
});
// Create SmartProxy2 (downstream)
const proxy2 = new SmartProxy({
ports: [8591],
enableDetailedLogging: true,
socketTimeout: 5000,
routes: [{
name: 'to-backend',
match: { ports: 8591 },
action: {
type: 'forward',
target: {
host: 'localhost',
port: 9998 // Backend that closes immediately
}
}
}]
});
// Create SmartProxy1 (upstream)
const proxy1 = new SmartProxy({
ports: [8590],
enableDetailedLogging: true,
socketTimeout: 5000,
routes: [{
name: 'to-proxy2',
match: { ports: 8590 },
action: {
type: 'forward',
target: {
host: 'localhost',
port: 8591 // Forward to proxy2
}
}
}]
});
await proxy2.start();
console.log('✓ SmartProxy2 started on port 8591');
await proxy1.start();
console.log('✓ SmartProxy1 started on port 8590');
// Helper to get connection counts
const getConnectionCounts = () => {
const conn1 = (proxy1 as any).connectionManager;
const conn2 = (proxy2 as any).connectionManager;
return {
proxy1: conn1 ? conn1.getConnectionCount() : 0,
proxy2: conn2 ? conn2.getConnectionCount() : 0
};
};
console.log('\n--- Making 5 sequential connections ---');
for (let i = 0; i < 5; i++) {
console.log(`\n=== Connection ${i + 1} ===`);
const counts = getConnectionCounts();
console.log(`Before: Proxy1=${counts.proxy1}, Proxy2=${counts.proxy2}`);
await new Promise<void>((resolve) => {
const client = new net.Socket();
let dataReceived = false;
client.on('data', (data) => {
console.log(`Client received data: ${data.toString()}`);
dataReceived = true;
});
client.on('error', (err) => {
console.log(`Client error: ${err.code}`);
resolve();
});
client.on('close', () => {
console.log(`Client closed (data received: ${dataReceived})`);
resolve();
});
client.connect(8590, 'localhost', () => {
console.log('Client connected to Proxy1');
// Send HTTP request
client.write('GET / HTTP/1.1\r\nHost: test.com\r\n\r\n');
});
// Timeout
setTimeout(() => {
if (!client.destroyed) {
console.log('Client timeout, destroying');
client.destroy();
}
resolve();
}, 2000);
});
// Wait a bit and check counts
await new Promise(resolve => setTimeout(resolve, 500));
const afterCounts = getConnectionCounts();
console.log(`After: Proxy1=${afterCounts.proxy1}, Proxy2=${afterCounts.proxy2}`);
if (afterCounts.proxy1 > 0 || afterCounts.proxy2 > 0) {
console.log('⚠️ WARNING: Connections not cleaned up!');
}
}
console.log('\n--- Test with backend completely down ---');
// Stop backend
backend.close();
await new Promise(resolve => setTimeout(resolve, 100));
console.log('✓ Backend stopped');
// Make more connections with backend down
for (let i = 0; i < 3; i++) {
console.log(`\n=== Connection ${i + 6} (backend down) ===`);
const counts = getConnectionCounts();
console.log(`Before: Proxy1=${counts.proxy1}, Proxy2=${counts.proxy2}`);
await new Promise<void>((resolve) => {
const client = new net.Socket();
client.on('error', () => {
resolve();
});
client.on('close', () => {
resolve();
});
client.connect(8590, 'localhost', () => {
client.write('GET / HTTP/1.1\r\nHost: test.com\r\n\r\n');
});
setTimeout(() => {
if (!client.destroyed) {
client.destroy();
}
resolve();
}, 1000);
});
await new Promise(resolve => setTimeout(resolve, 500));
const afterCounts = getConnectionCounts();
console.log(`After: Proxy1=${afterCounts.proxy1}, Proxy2=${afterCounts.proxy2}`);
}
// Final check
console.log('\n--- Final Check ---');
await new Promise(resolve => setTimeout(resolve, 1000));
const finalCounts = getConnectionCounts();
console.log(`Final counts: Proxy1=${finalCounts.proxy1}, Proxy2=${finalCounts.proxy2}`);
await proxy1.stop();
await proxy2.stop();
// Verify
if (finalCounts.proxy1 > 0 || finalCounts.proxy2 > 0) {
console.log('\n❌ FAIL: Connections accumulated!');
} else {
console.log('\n✅ PASS: No connection accumulation');
}
expect(finalCounts.proxy1).toEqual(0);
expect(finalCounts.proxy2).toEqual(0);
});
tap.start();

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import { tap, expect } from '@git.zone/tstest/tapbundle';
import * as net from 'net';
import * as plugins from '../ts/plugins.js';
// Import SmartProxy and configurations
import { SmartProxy } from '../ts/index.js';
tap.test('should handle proxy chaining without connection accumulation', async () => {
console.log('\n=== Testing Proxy Chaining Connection Accumulation ===');
console.log('Setup: Client → SmartProxy1 → SmartProxy2 → Backend (down)');
// Create SmartProxy2 (downstream proxy)
const proxy2 = new SmartProxy({
ports: [8581],
enableDetailedLogging: false,
socketTimeout: 5000,
routes: [{
name: 'backend-route',
match: { ports: 8581 },
action: {
type: 'forward',
target: {
host: 'localhost',
port: 9999 // Non-existent backend
}
}
}]
});
// Create SmartProxy1 (upstream proxy)
const proxy1 = new SmartProxy({
ports: [8580],
enableDetailedLogging: false,
socketTimeout: 5000,
routes: [{
name: 'chain-route',
match: { ports: 8580 },
action: {
type: 'forward',
target: {
host: 'localhost',
port: 8581 // Forward to proxy2
}
}
}]
});
// Start both proxies
await proxy2.start();
console.log('✓ SmartProxy2 started on port 8581');
await proxy1.start();
console.log('✓ SmartProxy1 started on port 8580');
// Helper to get connection counts
const getConnectionCounts = () => {
const conn1 = (proxy1 as any).connectionManager;
const conn2 = (proxy2 as any).connectionManager;
return {
proxy1: conn1 ? conn1.getConnectionCount() : 0,
proxy2: conn2 ? conn2.getConnectionCount() : 0
};
};
const initialCounts = getConnectionCounts();
console.log(`\nInitial connection counts - Proxy1: ${initialCounts.proxy1}, Proxy2: ${initialCounts.proxy2}`);
// Test 1: Single connection attempt
console.log('\n--- Test 1: Single connection through chain ---');
await new Promise<void>((resolve) => {
const client = new net.Socket();
client.on('error', (err) => {
console.log(`Client received error: ${err.code}`);
resolve();
});
client.on('close', () => {
console.log('Client connection closed');
resolve();
});
client.connect(8580, 'localhost', () => {
console.log('Client connected to Proxy1');
// Send data to trigger routing
client.write('GET / HTTP/1.1\r\nHost: test.com\r\n\r\n');
});
// Timeout
setTimeout(() => {
if (!client.destroyed) {
client.destroy();
}
resolve();
}, 1000);
});
// Check connections after single attempt
await new Promise(resolve => setTimeout(resolve, 500));
let counts = getConnectionCounts();
console.log(`After single connection - Proxy1: ${counts.proxy1}, Proxy2: ${counts.proxy2}`);
// Test 2: Multiple simultaneous connections
console.log('\n--- Test 2: Multiple simultaneous connections ---');
const promises = [];
for (let i = 0; i < 10; i++) {
promises.push(new Promise<void>((resolve) => {
const client = new net.Socket();
client.on('error', () => {
resolve();
});
client.on('close', () => {
resolve();
});
client.connect(8580, 'localhost', () => {
// Send data
client.write(`GET /test${i} HTTP/1.1\r\nHost: test.com\r\n\r\n`);
});
// Timeout
setTimeout(() => {
if (!client.destroyed) {
client.destroy();
}
resolve();
}, 500);
}));
}
await Promise.all(promises);
console.log('✓ All simultaneous connections completed');
// Check connections
counts = getConnectionCounts();
console.log(`After simultaneous connections - Proxy1: ${counts.proxy1}, Proxy2: ${counts.proxy2}`);
// Test 3: Rapid serial connections (simulating retries)
console.log('\n--- Test 3: Rapid serial connections (retries) ---');
for (let i = 0; i < 20; i++) {
await new Promise<void>((resolve) => {
const client = new net.Socket();
client.on('error', () => {
resolve();
});
client.on('close', () => {
resolve();
});
client.connect(8580, 'localhost', () => {
client.write('GET / HTTP/1.1\r\nHost: test.com\r\n\r\n');
// Quick disconnect to simulate retry behavior
setTimeout(() => client.destroy(), 50);
});
// Timeout
setTimeout(() => {
if (!client.destroyed) {
client.destroy();
}
resolve();
}, 200);
});
if ((i + 1) % 5 === 0) {
counts = getConnectionCounts();
console.log(`After ${i + 1} retries - Proxy1: ${counts.proxy1}, Proxy2: ${counts.proxy2}`);
}
// Small delay between retries
await new Promise(resolve => setTimeout(resolve, 50));
}
// Test 4: Long-lived connection attempt
console.log('\n--- Test 4: Long-lived connection attempt ---');
await new Promise<void>((resolve) => {
const client = new net.Socket();
client.on('error', () => {
resolve();
});
client.on('close', () => {
console.log('Long-lived client closed');
resolve();
});
client.connect(8580, 'localhost', () => {
console.log('Long-lived client connected');
// Send data periodically
const interval = setInterval(() => {
if (!client.destroyed && client.writable) {
client.write('PING\r\n');
} else {
clearInterval(interval);
}
}, 100);
// Close after 2 seconds
setTimeout(() => {
clearInterval(interval);
client.destroy();
}, 2000);
});
// Timeout
setTimeout(() => {
if (!client.destroyed) {
client.destroy();
}
resolve();
}, 3000);
});
// Final check
await new Promise(resolve => setTimeout(resolve, 1000));
const finalCounts = getConnectionCounts();
console.log(`\nFinal connection counts - Proxy1: ${finalCounts.proxy1}, Proxy2: ${finalCounts.proxy2}`);
// Monitor for a bit to see if connections are cleaned up
console.log('\nMonitoring connection cleanup...');
for (let i = 0; i < 3; i++) {
await new Promise(resolve => setTimeout(resolve, 500));
counts = getConnectionCounts();
console.log(`After ${(i + 1) * 0.5}s - Proxy1: ${counts.proxy1}, Proxy2: ${counts.proxy2}`);
}
// Stop proxies
await proxy1.stop();
console.log('\n✓ SmartProxy1 stopped');
await proxy2.stop();
console.log('✓ SmartProxy2 stopped');
// Analysis
console.log('\n=== Analysis ===');
if (finalCounts.proxy1 > 0 || finalCounts.proxy2 > 0) {
console.log('❌ FAIL: Connections accumulated!');
console.log(`Proxy1 leaked ${finalCounts.proxy1} connections`);
console.log(`Proxy2 leaked ${finalCounts.proxy2} connections`);
} else {
console.log('✅ PASS: No connection accumulation detected');
}
// Verify
expect(finalCounts.proxy1).toEqual(0);
expect(finalCounts.proxy2).toEqual(0);
});
tap.test('should handle proxy chain with HTTP traffic', async () => {
console.log('\n=== Testing Proxy Chain with HTTP Traffic ===');
// Create SmartProxy2 with HTTP handling
const proxy2 = new SmartProxy({
ports: [8583],
useHttpProxy: [8583], // Enable HTTP proxy handling
httpProxyPort: 8584,
enableDetailedLogging: false,
routes: [{
name: 'http-backend',
match: { ports: 8583 },
action: {
type: 'forward',
target: {
host: 'localhost',
port: 9999 // Non-existent backend
}
}
}]
});
// Create SmartProxy1 with HTTP handling
const proxy1 = new SmartProxy({
ports: [8582],
useHttpProxy: [8582], // Enable HTTP proxy handling
httpProxyPort: 8585,
enableDetailedLogging: false,
routes: [{
name: 'http-chain',
match: { ports: 8582 },
action: {
type: 'forward',
target: {
host: 'localhost',
port: 8583 // Forward to proxy2
}
}
}]
});
await proxy2.start();
console.log('✓ SmartProxy2 (HTTP) started on port 8583');
await proxy1.start();
console.log('✓ SmartProxy1 (HTTP) started on port 8582');
// Helper to get connection counts
const getConnectionCounts = () => {
const conn1 = (proxy1 as any).connectionManager;
const conn2 = (proxy2 as any).connectionManager;
return {
proxy1: conn1 ? conn1.getConnectionCount() : 0,
proxy2: conn2 ? conn2.getConnectionCount() : 0
};
};
console.log('\nSending HTTP requests through chain...');
// Make HTTP requests
for (let i = 0; i < 5; i++) {
await new Promise<void>((resolve) => {
const client = new net.Socket();
let responseData = '';
client.on('data', (data) => {
responseData += data.toString();
// Check if we got a complete HTTP response
if (responseData.includes('\r\n\r\n')) {
console.log(`Response ${i + 1}: ${responseData.split('\r\n')[0]}`);
client.destroy();
}
});
client.on('error', () => {
resolve();
});
client.on('close', () => {
resolve();
});
client.connect(8582, 'localhost', () => {
client.write(`GET /test${i} HTTP/1.1\r\nHost: test.com\r\nConnection: close\r\n\r\n`);
});
setTimeout(() => {
if (!client.destroyed) {
client.destroy();
}
resolve();
}, 1000);
});
await new Promise(resolve => setTimeout(resolve, 100));
}
await new Promise(resolve => setTimeout(resolve, 1000));
const finalCounts = getConnectionCounts();
console.log(`\nFinal HTTP proxy counts - Proxy1: ${finalCounts.proxy1}, Proxy2: ${finalCounts.proxy2}`);
await proxy1.stop();
await proxy2.stop();
expect(finalCounts.proxy1).toEqual(0);
expect(finalCounts.proxy2).toEqual(0);
});
export default tap.start();

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test/test.proxy-protocol.ts Normal file
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import { expect, tap } from '@git.zone/tstest/tapbundle';
import * as smartproxy from '../ts/index.js';
import { ProxyProtocolParser } from '../ts/core/utils/proxy-protocol.js';
tap.test('PROXY protocol v1 parser - valid headers', async () => {
// Test TCP4 format
const tcp4Header = Buffer.from('PROXY TCP4 192.168.1.1 10.0.0.1 56324 443\r\n', 'ascii');
const tcp4Result = ProxyProtocolParser.parse(tcp4Header);
expect(tcp4Result.proxyInfo).property('protocol').toEqual('TCP4');
expect(tcp4Result.proxyInfo).property('sourceIP').toEqual('192.168.1.1');
expect(tcp4Result.proxyInfo).property('sourcePort').toEqual(56324);
expect(tcp4Result.proxyInfo).property('destinationIP').toEqual('10.0.0.1');
expect(tcp4Result.proxyInfo).property('destinationPort').toEqual(443);
expect(tcp4Result.remainingData.length).toEqual(0);
// Test TCP6 format
const tcp6Header = Buffer.from('PROXY TCP6 2001:db8::1 2001:db8::2 56324 443\r\n', 'ascii');
const tcp6Result = ProxyProtocolParser.parse(tcp6Header);
expect(tcp6Result.proxyInfo).property('protocol').toEqual('TCP6');
expect(tcp6Result.proxyInfo).property('sourceIP').toEqual('2001:db8::1');
expect(tcp6Result.proxyInfo).property('sourcePort').toEqual(56324);
expect(tcp6Result.proxyInfo).property('destinationIP').toEqual('2001:db8::2');
expect(tcp6Result.proxyInfo).property('destinationPort').toEqual(443);
// Test UNKNOWN protocol
const unknownHeader = Buffer.from('PROXY UNKNOWN\r\n', 'ascii');
const unknownResult = ProxyProtocolParser.parse(unknownHeader);
expect(unknownResult.proxyInfo).property('protocol').toEqual('UNKNOWN');
expect(unknownResult.proxyInfo).property('sourceIP').toEqual('');
expect(unknownResult.proxyInfo).property('sourcePort').toEqual(0);
});
tap.test('PROXY protocol v1 parser - with remaining data', async () => {
const headerWithData = Buffer.concat([
Buffer.from('PROXY TCP4 192.168.1.1 10.0.0.1 56324 443\r\n', 'ascii'),
Buffer.from('GET / HTTP/1.1\r\n', 'ascii')
]);
const result = ProxyProtocolParser.parse(headerWithData);
expect(result.proxyInfo).property('protocol').toEqual('TCP4');
expect(result.proxyInfo).property('sourceIP').toEqual('192.168.1.1');
expect(result.remainingData.toString()).toEqual('GET / HTTP/1.1\r\n');
});
tap.test('PROXY protocol v1 parser - invalid headers', async () => {
// Not a PROXY protocol header
const notProxy = Buffer.from('GET / HTTP/1.1\r\n', 'ascii');
const notProxyResult = ProxyProtocolParser.parse(notProxy);
expect(notProxyResult.proxyInfo).toBeNull();
expect(notProxyResult.remainingData).toEqual(notProxy);
// Invalid protocol
expect(() => {
ProxyProtocolParser.parse(Buffer.from('PROXY INVALID 1.1.1.1 2.2.2.2 80 443\r\n', 'ascii'));
}).toThrow();
// Wrong number of fields
expect(() => {
ProxyProtocolParser.parse(Buffer.from('PROXY TCP4 192.168.1.1 10.0.0.1 56324\r\n', 'ascii'));
}).toThrow();
// Invalid port
expect(() => {
ProxyProtocolParser.parse(Buffer.from('PROXY TCP4 192.168.1.1 10.0.0.1 99999 443\r\n', 'ascii'));
}).toThrow();
// Invalid IP for protocol
expect(() => {
ProxyProtocolParser.parse(Buffer.from('PROXY TCP4 2001:db8::1 10.0.0.1 56324 443\r\n', 'ascii'));
}).toThrow();
});
tap.test('PROXY protocol v1 parser - incomplete headers', async () => {
// Header without terminator
const incomplete = Buffer.from('PROXY TCP4 192.168.1.1 10.0.0.1 56324 443', 'ascii');
const result = ProxyProtocolParser.parse(incomplete);
expect(result.proxyInfo).toBeNull();
expect(result.remainingData).toEqual(incomplete);
// Header exceeding max length - create a buffer that actually starts with PROXY
const longHeader = Buffer.from('PROXY TCP4 ' + '1'.repeat(100), 'ascii');
expect(() => {
ProxyProtocolParser.parse(longHeader);
}).toThrow();
});
tap.test('PROXY protocol v1 generator', async () => {
// Generate TCP4 header
const tcp4Info = {
protocol: 'TCP4' as const,
sourceIP: '192.168.1.1',
sourcePort: 56324,
destinationIP: '10.0.0.1',
destinationPort: 443
};
const tcp4Header = ProxyProtocolParser.generate(tcp4Info);
expect(tcp4Header.toString('ascii')).toEqual('PROXY TCP4 192.168.1.1 10.0.0.1 56324 443\r\n');
// Generate TCP6 header
const tcp6Info = {
protocol: 'TCP6' as const,
sourceIP: '2001:db8::1',
sourcePort: 56324,
destinationIP: '2001:db8::2',
destinationPort: 443
};
const tcp6Header = ProxyProtocolParser.generate(tcp6Info);
expect(tcp6Header.toString('ascii')).toEqual('PROXY TCP6 2001:db8::1 2001:db8::2 56324 443\r\n');
// Generate UNKNOWN header
const unknownInfo = {
protocol: 'UNKNOWN' as const,
sourceIP: '',
sourcePort: 0,
destinationIP: '',
destinationPort: 0
};
const unknownHeader = ProxyProtocolParser.generate(unknownInfo);
expect(unknownHeader.toString('ascii')).toEqual('PROXY UNKNOWN\r\n');
});
// Skipping integration tests for now - focus on unit tests
// Integration tests would require more complex setup and teardown
tap.start();

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import { expect, tap } from '@git.zone/tstest/tapbundle';
import { SmartProxy, type IRouteConfig } from '../ts/index.js';
/**
* Test that verifies mutex prevents race conditions during concurrent route updates
*/
tap.test('should handle concurrent route updates without race conditions', async (tools) => {
tools.timeout(10000);
const settings = {
port: 6001,
routes: [
{
name: 'initial-route',
match: {
ports: 80
},
action: {
type: 'forward' as const,
targetUrl: 'http://localhost:3000'
}
}
],
acme: {
email: 'test@test.com',
port: 80
}
};
const proxy = new SmartProxy(settings);
await proxy.start();
// Simulate concurrent route updates
const updates = [];
for (let i = 0; i < 5; i++) {
updates.push(proxy.updateRoutes([
...settings.routes,
{
name: `route-${i}`,
match: {
ports: [443]
},
action: {
type: 'forward' as const,
target: { host: 'localhost', port: 3001 + i },
tls: {
mode: 'terminate' as const,
certificate: 'auto' as const
}
}
}
]));
}
// All updates should complete without errors
await Promise.all(updates);
// Verify final state
const currentRoutes = proxy['settings'].routes;
expect(currentRoutes.length).toEqual(2); // Initial route + last update
await proxy.stop();
});
/**
* Test that verifies mutex serializes route updates
*/
tap.test('should serialize route updates with mutex', async (tools) => {
tools.timeout(10000);
const settings = {
port: 6002,
routes: [{
name: 'test-route',
match: { ports: [80] },
action: {
type: 'forward' as const,
targetUrl: 'http://localhost:3000'
}
}]
};
const proxy = new SmartProxy(settings);
await proxy.start();
let updateStartCount = 0;
let updateEndCount = 0;
let maxConcurrent = 0;
// Wrap updateRoutes to track concurrent execution
const originalUpdateRoutes = proxy['updateRoutes'].bind(proxy);
proxy['updateRoutes'] = async (routes: any[]) => {
updateStartCount++;
const concurrent = updateStartCount - updateEndCount;
maxConcurrent = Math.max(maxConcurrent, concurrent);
// If mutex is working, only one update should run at a time
expect(concurrent).toEqual(1);
const result = await originalUpdateRoutes(routes);
updateEndCount++;
return result;
};
// Trigger multiple concurrent updates
const updates = [];
for (let i = 0; i < 5; i++) {
updates.push(proxy.updateRoutes([
...settings.routes,
{
name: `concurrent-route-${i}`,
match: { ports: [2000 + i] },
action: {
type: 'forward' as const,
targetUrl: `http://localhost:${3000 + i}`
}
}
]));
}
await Promise.all(updates);
// All updates should have completed
expect(updateStartCount).toEqual(5);
expect(updateEndCount).toEqual(5);
expect(maxConcurrent).toEqual(1); // Mutex ensures only one at a time
await proxy.stop();
});
/**
* Test that challenge route state is preserved across certificate manager recreations
*/
tap.test('should preserve challenge route state during cert manager recreation', async (tools) => {
tools.timeout(10000);
const settings = {
port: 6003,
routes: [{
name: 'acme-route',
match: { ports: [443] },
action: {
type: 'forward' as const,
target: { host: 'localhost', port: 3001 },
tls: {
mode: 'terminate' as const,
certificate: 'auto' as const
}
}
}],
acme: {
email: 'test@test.com',
port: 80
}
};
const proxy = new SmartProxy(settings);
// Track certificate manager recreations
let certManagerCreationCount = 0;
const originalCreateCertManager = proxy['createCertificateManager'].bind(proxy);
proxy['createCertificateManager'] = async (...args: any[]) => {
certManagerCreationCount++;
return originalCreateCertManager(...args);
};
await proxy.start();
// Initial creation
expect(certManagerCreationCount).toEqual(1);
// Multiple route updates
for (let i = 0; i < 3; i++) {
await proxy.updateRoutes([
...settings.routes as IRouteConfig[],
{
name: `dynamic-route-${i}`,
match: { ports: [9000 + i] },
action: {
type: 'forward' as const,
target: { host: 'localhost', port: 5000 + i }
}
}
]);
}
// Certificate manager should be recreated for each update
expect(certManagerCreationCount).toEqual(4); // 1 initial + 3 updates
// State should be preserved (challenge route active)
const globalState = proxy['globalChallengeRouteActive'];
expect(globalState).toBeDefined();
await proxy.stop();
});
export default tap.start();

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import { tap, expect } from '@git.zone/tstest/tapbundle';
import * as net from 'net';
import * as plugins from '../ts/plugins.js';
// Import SmartProxy and configurations
import { SmartProxy } from '../ts/index.js';
tap.test('should handle rapid connection retries without leaking connections', async () => {
console.log('\n=== Testing Rapid Connection Retry Cleanup ===');
// Create a SmartProxy instance
const proxy = new SmartProxy({
ports: [8550],
enableDetailedLogging: false,
maxConnectionLifetime: 10000,
socketTimeout: 5000,
routes: [{
name: 'test-route',
match: { ports: 8550 },
action: {
type: 'forward',
target: {
host: 'localhost',
port: 9999 // Non-existent port to force connection failures
}
}
}]
});
// Start the proxy
await proxy.start();
console.log('✓ Proxy started on port 8550');
// Helper to get active connection count
const getActiveConnections = () => {
const connectionManager = (proxy as any).connectionManager;
return connectionManager ? connectionManager.getConnectionCount() : 0;
};
// Track connection counts
const connectionCounts: number[] = [];
const initialCount = getActiveConnections();
console.log(`Initial connection count: ${initialCount}`);
// Simulate rapid retries
const retryCount = 20;
const retryDelay = 50; // 50ms between retries
let successfulConnections = 0;
let failedConnections = 0;
console.log(`\nSimulating ${retryCount} rapid connection attempts...`);
for (let i = 0; i < retryCount; i++) {
await new Promise<void>((resolve) => {
const client = new net.Socket();
client.on('error', () => {
failedConnections++;
client.destroy();
resolve();
});
client.on('close', () => {
resolve();
});
client.connect(8550, 'localhost', () => {
// Send some data to trigger routing
client.write('GET / HTTP/1.1\r\nHost: test.com\r\n\r\n');
successfulConnections++;
});
// Force close after a short time
setTimeout(() => {
if (!client.destroyed) {
client.destroy();
}
}, 100);
});
// Small delay between retries
await new Promise(resolve => setTimeout(resolve, retryDelay));
// Check connection count after each attempt
const currentCount = getActiveConnections();
connectionCounts.push(currentCount);
if ((i + 1) % 5 === 0) {
console.log(`After ${i + 1} attempts: ${currentCount} active connections`);
}
}
console.log(`\nConnection attempts complete:`);
console.log(`- Successful: ${successfulConnections}`);
console.log(`- Failed: ${failedConnections}`);
// Wait a bit for any pending cleanups
console.log('\nWaiting for cleanup...');
await new Promise(resolve => setTimeout(resolve, 1000));
// Check final connection count
const finalCount = getActiveConnections();
console.log(`\nFinal connection count: ${finalCount}`);
// Analyze connection count trend
const maxCount = Math.max(...connectionCounts);
const avgCount = connectionCounts.reduce((a, b) => a + b, 0) / connectionCounts.length;
console.log(`\nConnection count statistics:`);
console.log(`- Maximum: ${maxCount}`);
console.log(`- Average: ${avgCount.toFixed(2)}`);
console.log(`- Initial: ${initialCount}`);
console.log(`- Final: ${finalCount}`);
// Stop the proxy
await proxy.stop();
console.log('\n✓ Proxy stopped');
// Verify results
expect(finalCount).toEqual(initialCount);
expect(maxCount).toBeLessThan(10); // Should not accumulate many connections
console.log('\n✅ PASS: Connection cleanup working correctly under rapid retries!');
});
tap.test('should handle routing failures without leaking connections', async () => {
console.log('\n=== Testing Routing Failure Cleanup ===');
// Create a SmartProxy instance with no routes
const proxy = new SmartProxy({
ports: [8551],
enableDetailedLogging: false,
maxConnectionLifetime: 10000,
socketTimeout: 5000,
routes: [] // No routes - all connections will fail routing
});
// Start the proxy
await proxy.start();
console.log('✓ Proxy started on port 8551 with no routes');
// Helper to get active connection count
const getActiveConnections = () => {
const connectionManager = (proxy as any).connectionManager;
return connectionManager ? connectionManager.getConnectionCount() : 0;
};
const initialCount = getActiveConnections();
console.log(`Initial connection count: ${initialCount}`);
// Create multiple connections that will fail routing
const connectionPromises = [];
for (let i = 0; i < 10; i++) {
connectionPromises.push(new Promise<void>((resolve) => {
const client = new net.Socket();
client.on('error', () => {
client.destroy();
resolve();
});
client.on('close', () => {
resolve();
});
client.connect(8551, 'localhost', () => {
// Send data to trigger routing (which will fail)
client.write('GET / HTTP/1.1\r\nHost: test.com\r\n\r\n');
});
// Force close after a short time
setTimeout(() => {
if (!client.destroyed) {
client.destroy();
}
resolve();
}, 500);
}));
}
// Wait for all connections to complete
await Promise.all(connectionPromises);
console.log('✓ All connection attempts completed');
// Wait for cleanup
await new Promise(resolve => setTimeout(resolve, 500));
const finalCount = getActiveConnections();
console.log(`Final connection count: ${finalCount}`);
// Stop the proxy
await proxy.stop();
console.log('✓ Proxy stopped');
// Verify no connections leaked
expect(finalCount).toEqual(initialCount);
console.log('\n✅ PASS: Routing failures cleaned up correctly!');
});
tap.start();

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@ -0,0 +1,279 @@
import { tap, expect } from '@git.zone/tstest/tapbundle';
import * as smartproxy from '../ts/index.js';
import type { IRouteConfig } from '../ts/proxies/smart-proxy/models/route-types.js';
import * as net from 'net';
tap.test('route security should block connections from unauthorized IPs', async () => {
// Create a target server that should never receive connections
let targetServerConnections = 0;
const targetServer = net.createServer((socket) => {
targetServerConnections++;
console.log('Target server received connection - this should not happen!');
socket.write('ERROR: This connection should have been blocked');
socket.end();
});
await new Promise<void>((resolve) => {
targetServer.listen(9990, '127.0.0.1', () => {
console.log('Target server listening on port 9990');
resolve();
});
});
// Create proxy with restrictive security at route level
const routes: IRouteConfig[] = [{
name: 'secure-route',
match: {
ports: 9991
},
action: {
type: 'forward',
target: {
host: '127.0.0.1',
port: 9990
}
},
security: {
// Only allow a non-existent IP
ipAllowList: ['192.168.99.99']
}
}];
const proxy = new smartproxy.SmartProxy({
enableDetailedLogging: true,
routes: routes
});
await proxy.start();
console.log('Proxy started on port 9991');
// Wait a moment to ensure server is fully ready
await new Promise(resolve => setTimeout(resolve, 100));
// Try to connect from localhost (should be blocked)
const client = new net.Socket();
const events: string[] = [];
const result = await new Promise<string>((resolve) => {
let resolved = false;
client.on('connect', () => {
console.log('Client connected (TCP handshake succeeded)');
events.push('connected');
// Send initial data to trigger routing
client.write('test');
});
client.on('data', (data) => {
console.log('Client received data:', data.toString());
events.push('data');
if (!resolved) {
resolved = true;
resolve('data');
}
});
client.on('error', (err: any) => {
console.log('Client error:', err.code);
events.push('error');
if (!resolved) {
resolved = true;
resolve('error');
}
});
client.on('close', () => {
console.log('Client connection closed by server');
events.push('closed');
if (!resolved) {
resolved = true;
resolve('closed');
}
});
setTimeout(() => {
if (!resolved) {
resolved = true;
resolve('timeout');
}
}, 2000);
console.log('Attempting connection from 127.0.0.1...');
client.connect(9991, '127.0.0.1');
});
console.log('Connection result:', result);
console.log('Events:', events);
// The connection might be closed before or after TCP handshake
// What matters is that the target server never receives a connection
console.log('Test passed: Connection was properly blocked by security');
// Target server should not have received any connections
expect(targetServerConnections).toEqual(0);
// Clean up
client.destroy();
await proxy.stop();
await new Promise<void>((resolve) => {
targetServer.close(() => resolve());
});
});
tap.test('route security with block list should work', async () => {
// Create a target server
let targetServerConnections = 0;
const targetServer = net.createServer((socket) => {
targetServerConnections++;
socket.write('Hello from target');
socket.end();
});
await new Promise<void>((resolve) => {
targetServer.listen(9992, '127.0.0.1', () => resolve());
});
// Create proxy with security at route level (not action level)
const routes: IRouteConfig[] = [{
name: 'secure-route-level',
match: {
ports: 9993
},
action: {
type: 'forward',
target: {
host: '127.0.0.1',
port: 9992
}
},
security: { // Security at route level, not action level
ipBlockList: ['127.0.0.1', '::1', '::ffff:127.0.0.1']
}
}];
const proxy = new smartproxy.SmartProxy({
enableDetailedLogging: true,
routes: routes
});
await proxy.start();
// Try to connect (should be blocked)
const client = new net.Socket();
const events: string[] = [];
const result = await new Promise<string>((resolve) => {
let resolved = false;
const timeout = setTimeout(() => {
if (!resolved) {
resolved = true;
resolve('timeout');
}
}, 2000);
client.on('connect', () => {
console.log('Client connected to block list test');
events.push('connected');
// Send initial data to trigger routing
client.write('test');
});
client.on('error', () => {
events.push('error');
if (!resolved) {
resolved = true;
clearTimeout(timeout);
resolve('error');
}
});
client.on('close', () => {
events.push('closed');
if (!resolved) {
resolved = true;
clearTimeout(timeout);
resolve('closed');
}
});
client.connect(9993, '127.0.0.1');
});
// Should connect then be immediately closed by security
expect(events).toContain('connected');
expect(events).toContain('closed');
expect(result).toEqual('closed');
expect(targetServerConnections).toEqual(0);
// Clean up
client.destroy();
await proxy.stop();
await new Promise<void>((resolve) => {
targetServer.close(() => resolve());
});
});
tap.test('route without security should allow all connections', async () => {
// Create echo server
const echoServer = net.createServer((socket) => {
socket.on('data', (data) => {
socket.write(data);
});
});
await new Promise<void>((resolve) => {
echoServer.listen(9994, '127.0.0.1', () => resolve());
});
// Create proxy without security
const routes: IRouteConfig[] = [{
name: 'open-route',
match: {
ports: 9995
},
action: {
type: 'forward',
target: {
host: '127.0.0.1',
port: 9994
}
}
// No security defined
}];
const proxy = new smartproxy.SmartProxy({
enableDetailedLogging: false,
routes: routes
});
await proxy.start();
// Connect and test echo
const client = new net.Socket();
await new Promise<void>((resolve) => {
client.connect(9995, '127.0.0.1', () => resolve());
});
// Send data and verify echo
const testData = 'Hello World';
client.write(testData);
const response = await new Promise<string>((resolve) => {
client.once('data', (data) => {
resolve(data.toString());
});
setTimeout(() => resolve(''), 2000);
});
expect(response).toEqual(testData);
// Clean up
client.destroy();
await proxy.stop();
await new Promise<void>((resolve) => {
echoServer.close(() => resolve());
});
});
export default tap.start();

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@ -0,0 +1,61 @@
import { tap, expect } from '@git.zone/tstest/tapbundle';
import * as smartproxy from '../ts/index.js';
tap.test('route security should be correctly configured', async () => {
// Test that we can create a proxy with route-specific security
const routes = [{
name: 'secure-route',
match: {
ports: 8990
},
action: {
type: 'forward' as const,
target: {
host: '127.0.0.1',
port: 8991
},
security: {
ipAllowList: ['192.168.1.1'],
ipBlockList: ['10.0.0.1']
}
}
}];
// This should not throw an error
const proxy = new smartproxy.SmartProxy({
enableDetailedLogging: false,
routes: routes
});
// The proxy should be created successfully
expect(proxy).toBeInstanceOf(smartproxy.SmartProxy);
// Test that security manager exists and has the isIPAuthorized method
const securityManager = (proxy as any).securityManager;
expect(securityManager).toBeDefined();
expect(typeof securityManager.isIPAuthorized).toEqual('function');
// Test IP authorization logic directly
const isLocalhostAllowed = securityManager.isIPAuthorized(
'127.0.0.1',
['192.168.1.1'], // Allow list
[] // Block list
);
expect(isLocalhostAllowed).toBeFalse();
const isAllowedIPAllowed = securityManager.isIPAuthorized(
'192.168.1.1',
['192.168.1.1'], // Allow list
[] // Block list
);
expect(isAllowedIPAllowed).toBeTrue();
const isBlockedIPAllowed = securityManager.isIPAuthorized(
'10.0.0.1',
['0.0.0.0/0'], // Allow all
['10.0.0.1'] // But block this specific IP
);
expect(isBlockedIPAllowed).toBeFalse();
});
tap.start();

275
test/test.route-security.ts Normal file
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@ -0,0 +1,275 @@
import { tap, expect } from '@git.zone/tstest/tapbundle';
import * as smartproxy from '../ts/index.js';
import type { IRouteConfig } from '../ts/proxies/smart-proxy/models/route-types.js';
import * as net from 'net';
tap.test('route-specific security should be enforced', async () => {
// Create a simple echo server for testing
const echoServer = net.createServer((socket) => {
socket.on('data', (data) => {
socket.write(data);
});
});
await new Promise<void>((resolve) => {
echoServer.listen(8877, '127.0.0.1', () => {
console.log('Echo server listening on port 8877');
resolve();
});
});
// Create proxy with route-specific security
const routes: IRouteConfig[] = [{
name: 'secure-route',
match: {
ports: 8878
},
action: {
type: 'forward',
target: {
host: '127.0.0.1',
port: 8877
}
},
security: {
ipAllowList: ['127.0.0.1', '::1', '::ffff:127.0.0.1']
}
}];
const proxy = new smartproxy.SmartProxy({
enableDetailedLogging: true,
routes: routes
});
await proxy.start();
// Test 1: Connection from allowed IP should work
const client1 = new net.Socket();
const connected = await new Promise<boolean>((resolve) => {
client1.connect(8878, '127.0.0.1', () => {
console.log('Client connected from allowed IP');
resolve(true);
});
client1.on('error', (err) => {
console.log('Connection error:', err.message);
resolve(false);
});
// Set timeout to prevent hanging
setTimeout(() => resolve(false), 2000);
});
if (connected) {
// Test echo
const testData = 'Hello from allowed IP';
client1.write(testData);
const response = await new Promise<string>((resolve) => {
client1.once('data', (data) => {
resolve(data.toString());
});
setTimeout(() => resolve(''), 2000);
});
expect(response).toEqual(testData);
client1.destroy();
} else {
expect(connected).toBeTrue();
}
// Clean up
await proxy.stop();
await new Promise<void>((resolve) => {
echoServer.close(() => resolve());
});
});
tap.test('route-specific IP block list should be enforced', async () => {
// Create a simple echo server for testing
const echoServer = net.createServer((socket) => {
socket.on('data', (data) => {
socket.write(data);
});
});
await new Promise<void>((resolve) => {
echoServer.listen(8879, '127.0.0.1', () => {
console.log('Echo server listening on port 8879');
resolve();
});
});
// Create proxy with route-specific block list
const routes: IRouteConfig[] = [{
name: 'blocked-route',
match: {
ports: 8880
},
action: {
type: 'forward',
target: {
host: '127.0.0.1',
port: 8879
}
},
security: {
ipAllowList: ['0.0.0.0/0', '::/0'], // Allow all IPs
ipBlockList: ['127.0.0.1', '::1', '::ffff:127.0.0.1'] // But block localhost
}
}];
const proxy = new smartproxy.SmartProxy({
enableDetailedLogging: true,
routes: routes
});
await proxy.start();
// Test: Connection from blocked IP should fail or be immediately closed
const client = new net.Socket();
let connectionSuccessful = false;
const result = await new Promise<{ connected: boolean; dataReceived: boolean }>((resolve) => {
let resolved = false;
let dataReceived = false;
const doResolve = (connected: boolean) => {
if (!resolved) {
resolved = true;
resolve({ connected, dataReceived });
}
};
client.connect(8880, '127.0.0.1', () => {
console.log('Client connect event fired');
connectionSuccessful = true;
// Try to send data to test if the connection is really established
try {
client.write('test data');
} catch (e) {
console.log('Write failed:', e.message);
}
});
client.on('data', () => {
dataReceived = true;
});
client.on('error', (err) => {
console.log('Connection error:', err.message);
doResolve(false);
});
client.on('close', () => {
console.log('Connection closed, connectionSuccessful:', connectionSuccessful, 'dataReceived:', dataReceived);
doResolve(connectionSuccessful);
});
// Set timeout
setTimeout(() => doResolve(connectionSuccessful), 1000);
});
// The connection should either fail to connect OR connect but immediately close without data exchange
if (result.connected) {
// If connected, it should have been immediately closed without data exchange
expect(result.dataReceived).toBeFalse();
console.log('Connection was established but immediately closed (acceptable behavior)');
} else {
// Connection failed entirely (also acceptable)
expect(result.connected).toBeFalse();
console.log('Connection was blocked entirely (preferred behavior)');
}
if (client.readyState !== 'closed') {
client.destroy();
}
// Clean up
await proxy.stop();
await new Promise<void>((resolve) => {
echoServer.close(() => resolve());
});
});
tap.test('routes without security should allow all connections', async () => {
// Create a simple echo server for testing
const echoServer = net.createServer((socket) => {
socket.on('data', (data) => {
socket.write(data);
});
});
await new Promise<void>((resolve) => {
echoServer.listen(8881, '127.0.0.1', () => {
console.log('Echo server listening on port 8881');
resolve();
});
});
// Create proxy without route-specific security
const routes: IRouteConfig[] = [{
name: 'open-route',
match: {
ports: 8882
},
action: {
type: 'forward',
target: {
host: '127.0.0.1',
port: 8881
}
// No security section - should allow all
}
}];
const proxy = new smartproxy.SmartProxy({
enableDetailedLogging: true,
routes: routes
});
await proxy.start();
// Test: Connection should work without security restrictions
const client = new net.Socket();
const connected = await new Promise<boolean>((resolve) => {
client.connect(8882, '127.0.0.1', () => {
console.log('Client connected to open route');
resolve(true);
});
client.on('error', (err) => {
console.log('Connection error:', err.message);
resolve(false);
});
// Set timeout
setTimeout(() => resolve(false), 2000);
});
expect(connected).toBeTrue();
if (connected) {
// Test echo
const testData = 'Hello from open route';
client.write(testData);
const response = await new Promise<string>((resolve) => {
client.once('data', (data) => {
resolve(data.toString());
});
setTimeout(() => resolve(''), 2000);
});
expect(response).toEqual(testData);
client.destroy();
}
// Clean up
await proxy.stop();
await new Promise<void>((resolve) => {
echoServer.close(() => resolve());
});
});
export default tap.start();

View File

@ -1,99 +0,0 @@
import * as plugins from '../ts/plugins.js';
import { SmartProxy } from '../ts/index.js';
import { SmartCertManager } from '../ts/proxies/smart-proxy/certificate-manager.js';
import { tap, expect } from '@git.zone/tstest/tapbundle';
// Create test routes using high ports to avoid permission issues
const createRoute = (id: number, domain: string, port: number = 8443) => ({
name: `test-route-${id}`,
match: {
ports: [port],
domains: [domain]
},
action: {
type: 'forward' as const,
target: {
host: 'localhost',
port: 3000 + id
}
}
});
// Test function to check if error handling is applied to logger calls
tap.test('should have error handling around logger calls in route update callbacks', async () => {
// Create a simple cert manager instance for testing
const certManager = new SmartCertManager(
[createRoute(1, 'test.example.com', 8443)],
'./certs',
{ email: 'test@example.com', useProduction: false }
);
// Create a mock update routes callback that tracks if it was called
let callbackCalled = false;
const mockCallback = async (routes: any[]) => {
callbackCalled = true;
// Just return without doing anything
return Promise.resolve();
};
// Set the callback
certManager.setUpdateRoutesCallback(mockCallback);
// Verify the callback was successfully set
expect(callbackCalled).toEqual(false);
// Create a test route
const testRoute = createRoute(2, 'test2.example.com', 8444);
// Verify we can add a challenge route without error
// This tests the try/catch we added around addChallengeRoute logger calls
try {
// Accessing private method for testing
// @ts-ignore
await (certManager as any).addChallengeRoute();
// If we got here without error, the error handling works
expect(true).toEqual(true);
} catch (error) {
// This shouldn't happen if our error handling is working
// Error handling failed in addChallengeRoute
expect(false).toEqual(true);
}
// Verify that we handle errors in removeChallengeRoute
try {
// Set the flag to active so we can test removal logic
// @ts-ignore
certManager.challengeRouteActive = true;
// @ts-ignore
await (certManager as any).removeChallengeRoute();
// If we got here without error, the error handling works
expect(true).toEqual(true);
} catch (error) {
// This shouldn't happen if our error handling is working
// Error handling failed in removeChallengeRoute
expect(false).toEqual(true);
}
});
// Test verifyChallengeRouteRemoved error handling
tap.test('should have error handling in verifyChallengeRouteRemoved', async () => {
// Create a SmartProxy for testing
const testProxy = new SmartProxy({
routes: [createRoute(1, 'test1.domain.test')]
});
// Verify that verifyChallengeRouteRemoved has error handling
try {
// @ts-ignore - Access private method for testing
await (testProxy as any).verifyChallengeRouteRemoved();
// If we got here without error, the try/catch is working
// (This will still throw at the end after max retries, but we're testing that
// the logger calls have try/catch blocks around them)
} catch (error) {
// This error is expected since we don't have a real challenge route
// But we're testing that the logger calls don't throw
expect(error.message).toContain('Failed to verify challenge route removal');
}
});
tap.start();

View File

@ -434,11 +434,12 @@ tap.test('Route Matching - routeMatchesPath', async () => {
}
};
const trailingSlashPathRoute: IRouteConfig = {
// Test prefix matching with wildcard (not trailing slash)
const prefixPathRoute: IRouteConfig = {
match: {
domains: 'example.com',
domains: 'example.com',
ports: 80,
path: '/api/'
path: '/api/*'
},
action: {
type: 'forward',
@ -469,10 +470,10 @@ tap.test('Route Matching - routeMatchesPath', async () => {
expect(routeMatchesPath(exactPathRoute, '/api/users')).toBeFalse();
expect(routeMatchesPath(exactPathRoute, '/app')).toBeFalse();
// Test trailing slash path matching
expect(routeMatchesPath(trailingSlashPathRoute, '/api/')).toBeTrue();
expect(routeMatchesPath(trailingSlashPathRoute, '/api/users')).toBeTrue();
expect(routeMatchesPath(trailingSlashPathRoute, '/app/')).toBeFalse();
// Test prefix path matching with wildcard
expect(routeMatchesPath(prefixPathRoute, '/api/')).toBeFalse(); // Wildcard requires content after /api/
expect(routeMatchesPath(prefixPathRoute, '/api/users')).toBeTrue();
expect(routeMatchesPath(prefixPathRoute, '/app/')).toBeFalse();
// Test wildcard path matching
expect(routeMatchesPath(wildcardPathRoute, '/api/users')).toBeTrue();

View File

@ -1,10 +1,10 @@
import { expect, tap } from '@git.zone/tstest/tapbundle';
import * as tsclass from '@tsclass/tsclass';
import * as http from 'http';
import { ProxyRouter, type RouterResult } from '../ts/routing/router/proxy-router.js';
import { HttpRouter, type RouterResult } from '../ts/routing/router/http-router.js';
import type { IRouteConfig } from '../ts/proxies/smart-proxy/models/route-types.js';
// Test proxies and configurations
let router: ProxyRouter;
let router: HttpRouter;
// Sample hostname for testing
const TEST_DOMAIN = 'example.com';
@ -23,33 +23,40 @@ function createMockRequest(host: string, url: string = '/'): http.IncomingMessag
return req;
}
// Helper: Creates a test proxy configuration
function createProxyConfig(
// Helper: Creates a test route configuration
function createRouteConfig(
hostname: string,
destinationIp: string = '10.0.0.1',
destinationPort: number = 8080
): tsclass.network.IReverseProxyConfig {
): IRouteConfig {
return {
hostName: hostname,
publicKey: 'mock-cert',
privateKey: 'mock-key',
destinationIps: [destinationIp],
destinationPorts: [destinationPort],
} as tsclass.network.IReverseProxyConfig;
name: `route-${hostname}`,
match: {
domains: [hostname],
ports: 443
},
action: {
type: 'forward',
target: {
host: destinationIp,
port: destinationPort
}
}
};
}
// SETUP: Create a ProxyRouter instance
tap.test('setup proxy router test environment', async () => {
router = new ProxyRouter();
// SETUP: Create an HttpRouter instance
tap.test('setup http router test environment', async () => {
router = new HttpRouter();
// Initialize with empty config
router.setNewProxyConfigs([]);
router.setRoutes([]);
});
// Test basic routing by hostname
tap.test('should route requests by hostname', async () => {
const config = createProxyConfig(TEST_DOMAIN);
router.setNewProxyConfigs([config]);
const config = createRouteConfig(TEST_DOMAIN);
router.setRoutes([config]);
const req = createMockRequest(TEST_DOMAIN);
const result = router.routeReq(req);
@ -60,8 +67,8 @@ tap.test('should route requests by hostname', async () => {
// Test handling of hostname with port number
tap.test('should handle hostname with port number', async () => {
const config = createProxyConfig(TEST_DOMAIN);
router.setNewProxyConfigs([config]);
const config = createRouteConfig(TEST_DOMAIN);
router.setRoutes([config]);
const req = createMockRequest(`${TEST_DOMAIN}:443`);
const result = router.routeReq(req);
@ -72,8 +79,8 @@ tap.test('should handle hostname with port number', async () => {
// Test case-insensitive hostname matching
tap.test('should perform case-insensitive hostname matching', async () => {
const config = createProxyConfig(TEST_DOMAIN.toLowerCase());
router.setNewProxyConfigs([config]);
const config = createRouteConfig(TEST_DOMAIN.toLowerCase());
router.setRoutes([config]);
const req = createMockRequest(TEST_DOMAIN.toUpperCase());
const result = router.routeReq(req);
@ -84,8 +91,8 @@ tap.test('should perform case-insensitive hostname matching', async () => {
// Test handling of unmatched hostnames
tap.test('should return undefined for unmatched hostnames', async () => {
const config = createProxyConfig(TEST_DOMAIN);
router.setNewProxyConfigs([config]);
const config = createRouteConfig(TEST_DOMAIN);
router.setRoutes([config]);
const req = createMockRequest('unknown.domain.com');
const result = router.routeReq(req);
@ -95,18 +102,16 @@ tap.test('should return undefined for unmatched hostnames', async () => {
// Test adding path patterns
tap.test('should match requests using path patterns', async () => {
const config = createProxyConfig(TEST_DOMAIN);
router.setNewProxyConfigs([config]);
// Add a path pattern to the config
router.setPathPattern(config, '/api/users');
const config = createRouteConfig(TEST_DOMAIN);
config.match.path = '/api/users';
router.setRoutes([config]);
// Test that path matches
const req1 = createMockRequest(TEST_DOMAIN, '/api/users');
const result1 = router.routeReqWithDetails(req1);
expect(result1).toBeTruthy();
expect(result1.config).toEqual(config);
expect(result1.route).toEqual(config);
expect(result1.pathMatch).toEqual('/api/users');
// Test that non-matching path doesn't match
@ -118,17 +123,16 @@ tap.test('should match requests using path patterns', async () => {
// Test handling wildcard patterns
tap.test('should support wildcard path patterns', async () => {
const config = createProxyConfig(TEST_DOMAIN);
router.setNewProxyConfigs([config]);
router.setPathPattern(config, '/api/*');
const config = createRouteConfig(TEST_DOMAIN);
config.match.path = '/api/*';
router.setRoutes([config]);
// Test with path that matches the wildcard pattern
const req = createMockRequest(TEST_DOMAIN, '/api/users/123');
const result = router.routeReqWithDetails(req);
expect(result).toBeTruthy();
expect(result.config).toEqual(config);
expect(result.route).toEqual(config);
expect(result.pathMatch).toEqual('/api');
// Print the actual value to diagnose issues
@ -139,31 +143,31 @@ tap.test('should support wildcard path patterns', async () => {
// Test extracting path parameters
tap.test('should extract path parameters from URL', async () => {
const config = createProxyConfig(TEST_DOMAIN);
router.setNewProxyConfigs([config]);
router.setPathPattern(config, '/users/:id/profile');
const config = createRouteConfig(TEST_DOMAIN);
config.match.path = '/users/:id/profile';
router.setRoutes([config]);
const req = createMockRequest(TEST_DOMAIN, '/users/123/profile');
const result = router.routeReqWithDetails(req);
expect(result).toBeTruthy();
expect(result.config).toEqual(config);
expect(result.route).toEqual(config);
expect(result.pathParams).toBeTruthy();
expect(result.pathParams.id).toEqual('123');
});
// Test multiple configs for same hostname with different paths
tap.test('should support multiple configs for same hostname with different paths', async () => {
const apiConfig = createProxyConfig(TEST_DOMAIN, '10.0.0.1', 8001);
const webConfig = createProxyConfig(TEST_DOMAIN, '10.0.0.2', 8002);
const apiConfig = createRouteConfig(TEST_DOMAIN, '10.0.0.1', 8001);
apiConfig.match.path = '/api';
apiConfig.name = 'api-route';
const webConfig = createRouteConfig(TEST_DOMAIN, '10.0.0.2', 8002);
webConfig.match.path = '/web';
webConfig.name = 'web-route';
// Add both configs
router.setNewProxyConfigs([apiConfig, webConfig]);
// Set different path patterns
router.setPathPattern(apiConfig, '/api');
router.setPathPattern(webConfig, '/web');
router.setRoutes([apiConfig, webConfig]);
// Test API path routes to API config
const apiReq = createMockRequest(TEST_DOMAIN, '/api/users');
@ -186,8 +190,8 @@ tap.test('should support multiple configs for same hostname with different paths
// Test wildcard subdomains
tap.test('should match wildcard subdomains', async () => {
const wildcardConfig = createProxyConfig(TEST_WILDCARD);
router.setNewProxyConfigs([wildcardConfig]);
const wildcardConfig = createRouteConfig(TEST_WILDCARD);
router.setRoutes([wildcardConfig]);
// Test that subdomain.example.com matches *.example.com
const req = createMockRequest('subdomain.example.com');
@ -199,8 +203,8 @@ tap.test('should match wildcard subdomains', async () => {
// Test TLD wildcards (example.*)
tap.test('should match TLD wildcards', async () => {
const tldWildcardConfig = createProxyConfig('example.*');
router.setNewProxyConfigs([tldWildcardConfig]);
const tldWildcardConfig = createRouteConfig('example.*');
router.setRoutes([tldWildcardConfig]);
// Test that example.com matches example.*
const req1 = createMockRequest('example.com');
@ -222,8 +226,8 @@ tap.test('should match TLD wildcards', async () => {
// Test complex pattern matching (*.lossless*)
tap.test('should match complex wildcard patterns', async () => {
const complexWildcardConfig = createProxyConfig('*.lossless*');
router.setNewProxyConfigs([complexWildcardConfig]);
const complexWildcardConfig = createRouteConfig('*.lossless*');
router.setRoutes([complexWildcardConfig]);
// Test that sub.lossless.com matches *.lossless*
const req1 = createMockRequest('sub.lossless.com');
@ -245,10 +249,10 @@ tap.test('should match complex wildcard patterns', async () => {
// Test default configuration fallback
tap.test('should fall back to default configuration', async () => {
const defaultConfig = createProxyConfig('*');
const specificConfig = createProxyConfig(TEST_DOMAIN);
const defaultConfig = createRouteConfig('*');
const specificConfig = createRouteConfig(TEST_DOMAIN);
router.setNewProxyConfigs([defaultConfig, specificConfig]);
router.setRoutes([defaultConfig, specificConfig]);
// Test specific domain routes to specific config
const specificReq = createMockRequest(TEST_DOMAIN);
@ -265,10 +269,10 @@ tap.test('should fall back to default configuration', async () => {
// Test priority between exact and wildcard matches
tap.test('should prioritize exact hostname over wildcard', async () => {
const wildcardConfig = createProxyConfig(TEST_WILDCARD);
const exactConfig = createProxyConfig(TEST_SUBDOMAIN);
const wildcardConfig = createRouteConfig(TEST_WILDCARD);
const exactConfig = createRouteConfig(TEST_SUBDOMAIN);
router.setNewProxyConfigs([wildcardConfig, exactConfig]);
router.setRoutes([wildcardConfig, exactConfig]);
// Test that exact match takes priority
const req = createMockRequest(TEST_SUBDOMAIN);
@ -279,11 +283,11 @@ tap.test('should prioritize exact hostname over wildcard', async () => {
// Test adding and removing configurations
tap.test('should manage configurations correctly', async () => {
router.setNewProxyConfigs([]);
router.setRoutes([]);
// Add a config
const config = createProxyConfig(TEST_DOMAIN);
router.addProxyConfig(config);
const config = createRouteConfig(TEST_DOMAIN);
router.setRoutes([config]);
// Verify routing works
const req = createMockRequest(TEST_DOMAIN);
@ -292,8 +296,7 @@ tap.test('should manage configurations correctly', async () => {
expect(result).toEqual(config);
// Remove the config and verify it no longer routes
const removed = router.removeProxyConfig(TEST_DOMAIN);
expect(removed).toBeTrue();
router.setRoutes([]);
result = router.routeReq(req);
expect(result).toBeUndefined();
@ -301,13 +304,16 @@ tap.test('should manage configurations correctly', async () => {
// Test path pattern specificity
tap.test('should prioritize more specific path patterns', async () => {
const genericConfig = createProxyConfig(TEST_DOMAIN, '10.0.0.1', 8001);
const specificConfig = createProxyConfig(TEST_DOMAIN, '10.0.0.2', 8002);
const genericConfig = createRouteConfig(TEST_DOMAIN, '10.0.0.1', 8001);
genericConfig.match.path = '/api/*';
genericConfig.name = 'generic-api';
router.setNewProxyConfigs([genericConfig, specificConfig]);
const specificConfig = createRouteConfig(TEST_DOMAIN, '10.0.0.2', 8002);
specificConfig.match.path = '/api/users';
specificConfig.name = 'specific-api';
specificConfig.priority = 10; // Higher priority
router.setPathPattern(genericConfig, '/api/*');
router.setPathPattern(specificConfig, '/api/users');
router.setRoutes([genericConfig, specificConfig]);
// The more specific '/api/users' should match before the '/api/*' wildcard
const req = createMockRequest(TEST_DOMAIN, '/api/users');
@ -316,24 +322,29 @@ tap.test('should prioritize more specific path patterns', async () => {
expect(result).toEqual(specificConfig);
});
// Test getHostnames method
tap.test('should retrieve all configured hostnames', async () => {
router.setNewProxyConfigs([
createProxyConfig(TEST_DOMAIN),
createProxyConfig(TEST_SUBDOMAIN)
]);
// Test multiple hostnames
tap.test('should handle multiple configured hostnames', async () => {
const routes = [
createRouteConfig(TEST_DOMAIN),
createRouteConfig(TEST_SUBDOMAIN)
];
router.setRoutes(routes);
const hostnames = router.getHostnames();
// Test first domain routes correctly
const req1 = createMockRequest(TEST_DOMAIN);
const result1 = router.routeReq(req1);
expect(result1).toEqual(routes[0]);
expect(hostnames.length).toEqual(2);
expect(hostnames).toContain(TEST_DOMAIN.toLowerCase());
expect(hostnames).toContain(TEST_SUBDOMAIN.toLowerCase());
// Test second domain routes correctly
const req2 = createMockRequest(TEST_SUBDOMAIN);
const result2 = router.routeReq(req2);
expect(result2).toEqual(routes[1]);
});
// Test handling missing host header
tap.test('should handle missing host header', async () => {
const defaultConfig = createProxyConfig('*');
router.setNewProxyConfigs([defaultConfig]);
const defaultConfig = createRouteConfig('*');
router.setRoutes([defaultConfig]);
const req = createMockRequest('');
req.headers.host = undefined;
@ -345,16 +356,15 @@ tap.test('should handle missing host header', async () => {
// Test complex path parameters
tap.test('should handle complex path parameters', async () => {
const config = createProxyConfig(TEST_DOMAIN);
router.setNewProxyConfigs([config]);
router.setPathPattern(config, '/api/:version/users/:userId/posts/:postId');
const config = createRouteConfig(TEST_DOMAIN);
config.match.path = '/api/:version/users/:userId/posts/:postId';
router.setRoutes([config]);
const req = createMockRequest(TEST_DOMAIN, '/api/v1/users/123/posts/456');
const result = router.routeReqWithDetails(req);
expect(result).toBeTruthy();
expect(result.config).toEqual(config);
expect(result.route).toEqual(config);
expect(result.pathParams).toBeTruthy();
expect(result.pathParams.version).toEqual('v1');
expect(result.pathParams.userId).toEqual('123');
@ -367,10 +377,10 @@ tap.test('should handle many configurations efficiently', async () => {
// Create many configs with different hostnames
for (let i = 0; i < 100; i++) {
configs.push(createProxyConfig(`host-${i}.example.com`));
configs.push(createRouteConfig(`host-${i}.example.com`));
}
router.setNewProxyConfigs(configs);
router.setRoutes(configs);
// Test middle of the list to avoid best/worst case
const req = createMockRequest('host-50.example.com');
@ -382,11 +392,12 @@ tap.test('should handle many configurations efficiently', async () => {
// Test cleanup
tap.test('cleanup proxy router test environment', async () => {
// Clear all configurations
router.setNewProxyConfigs([]);
router.setRoutes([]);
// Verify empty state
expect(router.getHostnames().length).toEqual(0);
expect(router.getProxyConfigs().length).toEqual(0);
// Verify empty state by testing that no routes match
const req = createMockRequest(TEST_DOMAIN);
const result = router.routeReq(req);
expect(result).toBeUndefined();
});
export default tap.start();

View File

@ -1,88 +0,0 @@
import { tap, expect } from '@git.zone/tstest/tapbundle';
import { SmartProxy } from '../ts/index.js';
/**
* Simple test to check route manager initialization with ACME
*/
tap.test('should properly initialize with ACME configuration', async (tools) => {
const settings = {
routes: [
{
name: 'secure-route',
match: {
ports: [8443],
domains: 'test.example.com'
},
action: {
type: 'forward' as const,
target: { host: 'localhost', port: 8080 },
tls: {
mode: 'terminate' as const,
certificate: 'auto' as const,
acme: {
email: 'ssl@bleu.de',
challengePort: 8080
}
}
}
}
],
acme: {
email: 'ssl@bleu.de',
port: 8080,
useProduction: false,
enabled: true
}
};
const proxy = new SmartProxy(settings);
// Replace the certificate manager creation to avoid real ACME requests
(proxy as any).createCertificateManager = async () => {
return {
setUpdateRoutesCallback: () => {},
setHttpProxy: () => {},
setGlobalAcmeDefaults: () => {},
setAcmeStateManager: () => {},
initialize: async () => {
// Using logger would be better but in test we'll keep console.log
console.log('Mock certificate manager initialized');
},
provisionAllCertificates: async () => {
console.log('Mock certificate provisioning');
},
stop: async () => {
console.log('Mock certificate manager stopped');
}
};
};
// Mock NFTables
(proxy as any).nftablesManager = {
provisionRoute: async () => {},
deprovisionRoute: async () => {},
updateRoute: async () => {},
getStatus: async () => ({}),
stop: async () => {}
};
await proxy.start();
// Verify proxy started successfully
expect(proxy).toBeDefined();
// Verify route manager has routes
const routeManager = (proxy as any).routeManager;
expect(routeManager).toBeDefined();
expect(routeManager.getAllRoutes().length).toBeGreaterThan(0);
// Verify the route exists with correct domain
const routes = routeManager.getAllRoutes();
const secureRoute = routes.find((r: any) => r.name === 'secure-route');
expect(secureRoute).toBeDefined();
expect(secureRoute.match.domains).toEqual('test.example.com');
await proxy.stop();
});
tap.start();

View File

@ -1,59 +0,0 @@
import { expect, tap } from '@git.zone/tstest/tapbundle';
import * as net from 'net';
import { SmartProxy } from '../ts/index.js';
tap.test('simple socket handler test', async () => {
const proxy = new SmartProxy({
routes: [{
name: 'simple-handler',
match: {
ports: 8888
// No domains restriction - will match all connections on this port
},
action: {
type: 'socket-handler',
socketHandler: (socket, context) => {
console.log('Handler called!');
socket.write('HELLO\n');
socket.end();
}
}
}],
enableDetailedLogging: true
});
await proxy.start();
// Test connection
const client = new net.Socket();
let response = '';
client.on('data', (data) => {
response += data.toString();
});
await new Promise<void>((resolve, reject) => {
client.connect(8888, 'localhost', () => {
console.log('Connected');
// Send some initial data to trigger the handler
client.write('test\n');
resolve();
});
client.on('error', reject);
});
// Wait for response
await new Promise(resolve => {
client.on('close', () => {
console.log('Connection closed');
resolve(undefined);
});
});
console.log('Got response:', response);
expect(response).toEqual('HELLO\n');
await proxy.stop();
});
export default tap.start();

View File

@ -0,0 +1,144 @@
import { expect, tap } from '@git.zone/tstest/tapbundle';
import * as net from 'net';
import { SmartProxy } from '../ts/index.js';
import * as plugins from '../ts/plugins.js';
tap.test('stuck connection cleanup - verify connections to hanging backends are cleaned up', async (tools) => {
console.log('\n=== Stuck Connection Cleanup Test ===');
console.log('Purpose: Verify that connections to backends that accept but never respond are cleaned up');
// Create a hanging backend that accepts connections but never responds
let backendConnections = 0;
const hangingBackend = net.createServer((socket) => {
backendConnections++;
console.log(`Hanging backend: Connection ${backendConnections} received`);
// Accept the connection but never send any data back
// This simulates a hung backend service
});
await new Promise<void>((resolve) => {
hangingBackend.listen(9997, () => {
console.log('✓ Hanging backend started on port 9997');
resolve();
});
});
// Create proxy that forwards to hanging backend
const proxy = new SmartProxy({
routes: [{
name: 'to-hanging-backend',
match: { ports: 8589 },
action: {
type: 'forward',
target: { host: 'localhost', port: 9997 }
}
}],
keepAlive: true,
enableDetailedLogging: false,
inactivityTimeout: 5000, // 5 second inactivity check interval for faster testing
});
await proxy.start();
console.log('✓ Proxy started on port 8589');
// Create connections that will get stuck
console.log('\n--- Creating connections to hanging backend ---');
const clients: net.Socket[] = [];
for (let i = 0; i < 5; i++) {
const client = net.connect(8589, 'localhost');
clients.push(client);
await new Promise<void>((resolve) => {
client.on('connect', () => {
console.log(`Client ${i} connected`);
// Send data that will never get a response
client.write(`GET / HTTP/1.1\r\nHost: localhost\r\n\r\n`);
resolve();
});
client.on('error', (err) => {
console.log(`Client ${i} error: ${err.message}`);
resolve();
});
});
}
// Wait a moment for connections to establish
await plugins.smartdelay.delayFor(1000);
// Check initial connection count
const initialCount = (proxy as any).connectionManager.getConnectionCount();
console.log(`\nInitial connection count: ${initialCount}`);
expect(initialCount).toEqual(5);
// Get connection details
const connections = (proxy as any).connectionManager.getConnections();
let stuckCount = 0;
for (const [id, record] of connections) {
if (record.bytesReceived > 0 && record.bytesSent === 0) {
stuckCount++;
console.log(`Stuck connection ${id}: received=${record.bytesReceived}, sent=${record.bytesSent}`);
}
}
console.log(`Stuck connections found: ${stuckCount}`);
expect(stuckCount).toEqual(5);
// Wait for inactivity check to run (it checks every 30s by default, but we set it to 5s)
console.log('\n--- Waiting for stuck connection detection (65 seconds) ---');
console.log('Note: Stuck connections are cleaned up after 60 seconds with no response');
// Speed up time by manually triggering inactivity check after simulating time passage
// First, age the connections by updating their timestamps
const now = Date.now();
for (const [id, record] of connections) {
// Simulate that these connections are 61 seconds old
record.incomingStartTime = now - 61000;
record.lastActivity = now - 61000;
}
// Manually trigger inactivity check
console.log('Manually triggering inactivity check...');
(proxy as any).connectionManager.performOptimizedInactivityCheck();
// Wait for cleanup to complete
await plugins.smartdelay.delayFor(1000);
// Check connection count after cleanup
const afterCleanupCount = (proxy as any).connectionManager.getConnectionCount();
console.log(`\nConnection count after cleanup: ${afterCleanupCount}`);
// Verify termination stats
const stats = (proxy as any).connectionManager.getTerminationStats();
console.log('\nTermination stats:', stats);
// All connections should be cleaned up as "stuck_no_response"
expect(afterCleanupCount).toEqual(0);
// The termination reason might be under incoming or general stats
const stuckCleanups = (stats.incoming.stuck_no_response || 0) +
(stats.outgoing?.stuck_no_response || 0);
console.log(`Stuck cleanups detected: ${stuckCleanups}`);
expect(stuckCleanups).toBeGreaterThan(0);
// Verify clients were disconnected
let closedClients = 0;
for (const client of clients) {
if (client.destroyed) {
closedClients++;
}
}
console.log(`Closed clients: ${closedClients}/5`);
expect(closedClients).toEqual(5);
// Cleanup
console.log('\n--- Cleanup ---');
await proxy.stop();
hangingBackend.close();
console.log('✓ Test complete: Stuck connections are properly detected and cleaned up');
});
tap.start();

366
test/test.wrapped-socket.ts Normal file
View File

@ -0,0 +1,366 @@
import { expect, tap } from '@git.zone/tstest/tapbundle';
import * as plugins from '../ts/plugins.js';
import { WrappedSocket } from '../ts/core/models/wrapped-socket.js';
import * as net from 'net';
tap.test('WrappedSocket - should wrap a regular socket', async () => {
// Create a simple test server
const server = net.createServer();
await new Promise<void>((resolve) => {
server.listen(0, 'localhost', () => resolve());
});
const serverPort = (server.address() as net.AddressInfo).port;
// Create a client connection
const clientSocket = net.connect(serverPort, 'localhost');
// Wrap the socket
const wrappedSocket = new WrappedSocket(clientSocket);
// Test initial state - should use underlying socket values
expect(wrappedSocket.remoteAddress).toEqual(clientSocket.remoteAddress);
expect(wrappedSocket.remotePort).toEqual(clientSocket.remotePort);
expect(wrappedSocket.localAddress).toEqual(clientSocket.localAddress);
expect(wrappedSocket.localPort).toEqual(clientSocket.localPort);
expect(wrappedSocket.isFromTrustedProxy).toBeFalse();
// Clean up
clientSocket.destroy();
server.close();
});
tap.test('WrappedSocket - should provide real client info when set', async () => {
// Create a simple test server
const server = net.createServer();
await new Promise<void>((resolve) => {
server.listen(0, 'localhost', () => resolve());
});
const serverPort = (server.address() as net.AddressInfo).port;
// Create a client connection
const clientSocket = net.connect(serverPort, 'localhost');
// Wrap the socket with initial proxy info
const wrappedSocket = new WrappedSocket(clientSocket, '192.168.1.100', 54321);
// Test that real client info is returned
expect(wrappedSocket.remoteAddress).toEqual('192.168.1.100');
expect(wrappedSocket.remotePort).toEqual(54321);
expect(wrappedSocket.isFromTrustedProxy).toBeTrue();
// Local info should still come from underlying socket
expect(wrappedSocket.localAddress).toEqual(clientSocket.localAddress);
expect(wrappedSocket.localPort).toEqual(clientSocket.localPort);
// Clean up
clientSocket.destroy();
server.close();
});
tap.test('WrappedSocket - should update proxy info via setProxyInfo', async () => {
// Create a simple test server
const server = net.createServer();
await new Promise<void>((resolve) => {
server.listen(0, 'localhost', () => resolve());
});
const serverPort = (server.address() as net.AddressInfo).port;
// Create a client connection
const clientSocket = net.connect(serverPort, 'localhost');
// Wrap the socket without initial proxy info
const wrappedSocket = new WrappedSocket(clientSocket);
// Initially should use underlying socket
expect(wrappedSocket.isFromTrustedProxy).toBeFalse();
expect(wrappedSocket.remoteAddress).toEqual(clientSocket.remoteAddress);
// Update proxy info
wrappedSocket.setProxyInfo('10.0.0.5', 12345);
// Now should return proxy info
expect(wrappedSocket.remoteAddress).toEqual('10.0.0.5');
expect(wrappedSocket.remotePort).toEqual(12345);
expect(wrappedSocket.isFromTrustedProxy).toBeTrue();
// Clean up
clientSocket.destroy();
server.close();
});
tap.test('WrappedSocket - should correctly determine IP family', async () => {
// Create a simple test server
const server = net.createServer();
await new Promise<void>((resolve) => {
server.listen(0, 'localhost', () => resolve());
});
const serverPort = (server.address() as net.AddressInfo).port;
// Create a client connection
const clientSocket = net.connect(serverPort, 'localhost');
// Test IPv4
const wrappedSocketIPv4 = new WrappedSocket(clientSocket, '192.168.1.1', 80);
expect(wrappedSocketIPv4.remoteFamily).toEqual('IPv4');
// Test IPv6
const wrappedSocketIPv6 = new WrappedSocket(clientSocket, '2001:0db8:85a3:0000:0000:8a2e:0370:7334', 443);
expect(wrappedSocketIPv6.remoteFamily).toEqual('IPv6');
// Test fallback to underlying socket
const wrappedSocketNoProxy = new WrappedSocket(clientSocket);
expect(wrappedSocketNoProxy.remoteFamily).toEqual(clientSocket.remoteFamily);
// Clean up
clientSocket.destroy();
server.close();
});
tap.test('WrappedSocket - should forward events correctly', async () => {
// Create a simple echo server
let serverConnection: net.Socket;
const server = net.createServer((socket) => {
serverConnection = socket;
socket.on('data', (data) => {
socket.write(data); // Echo back
});
});
await new Promise<void>((resolve) => {
server.listen(0, 'localhost', () => resolve());
});
const serverPort = (server.address() as net.AddressInfo).port;
// Create a client connection
const clientSocket = net.connect(serverPort, 'localhost');
// Wrap the socket
const wrappedSocket = new WrappedSocket(clientSocket);
// Set up event tracking
let connectReceived = false;
let dataReceived = false;
let endReceived = false;
let closeReceived = false;
wrappedSocket.on('connect', () => {
connectReceived = true;
});
wrappedSocket.on('data', (chunk) => {
dataReceived = true;
expect(chunk.toString()).toEqual('test data');
});
wrappedSocket.on('end', () => {
endReceived = true;
});
wrappedSocket.on('close', () => {
closeReceived = true;
});
// Wait for connection
await new Promise<void>((resolve) => {
if (clientSocket.readyState === 'open') {
resolve();
} else {
clientSocket.once('connect', () => resolve());
}
});
// Send data
wrappedSocket.write('test data');
// Wait for echo
await new Promise(resolve => setTimeout(resolve, 100));
// Close the connection
serverConnection.end();
// Wait for events
await new Promise(resolve => setTimeout(resolve, 100));
// Verify all events were received
expect(dataReceived).toBeTrue();
expect(endReceived).toBeTrue();
expect(closeReceived).toBeTrue();
// Clean up
server.close();
});
tap.test('WrappedSocket - should pass through socket methods', async () => {
// Create a simple test server
const server = net.createServer();
await new Promise<void>((resolve) => {
server.listen(0, 'localhost', () => resolve());
});
const serverPort = (server.address() as net.AddressInfo).port;
// Create a client connection
const clientSocket = net.connect(serverPort, 'localhost');
await new Promise<void>((resolve) => {
clientSocket.once('connect', () => resolve());
});
// Wrap the socket
const wrappedSocket = new WrappedSocket(clientSocket);
// Test various pass-through methods
expect(wrappedSocket.readable).toEqual(clientSocket.readable);
expect(wrappedSocket.writable).toEqual(clientSocket.writable);
expect(wrappedSocket.destroyed).toEqual(clientSocket.destroyed);
expect(wrappedSocket.bytesRead).toEqual(clientSocket.bytesRead);
expect(wrappedSocket.bytesWritten).toEqual(clientSocket.bytesWritten);
// Test method calls
wrappedSocket.pause();
expect(clientSocket.isPaused()).toBeTrue();
wrappedSocket.resume();
expect(clientSocket.isPaused()).toBeFalse();
// Test setTimeout
let timeoutCalled = false;
wrappedSocket.setTimeout(100, () => {
timeoutCalled = true;
});
await new Promise(resolve => setTimeout(resolve, 150));
expect(timeoutCalled).toBeTrue();
// Clean up
wrappedSocket.destroy();
server.close();
});
tap.test('WrappedSocket - should handle write and pipe operations', async () => {
// Create a simple echo server
const server = net.createServer((socket) => {
socket.pipe(socket); // Echo everything back
});
await new Promise<void>((resolve) => {
server.listen(0, 'localhost', () => resolve());
});
const serverPort = (server.address() as net.AddressInfo).port;
// Create a client connection
const clientSocket = net.connect(serverPort, 'localhost');
await new Promise<void>((resolve) => {
clientSocket.once('connect', () => resolve());
});
// Wrap the socket
const wrappedSocket = new WrappedSocket(clientSocket);
// Test write with callback
const writeResult = wrappedSocket.write('test', 'utf8', () => {
// Write completed
});
expect(typeof writeResult).toEqual('boolean');
// Test pipe
const { PassThrough } = await import('stream');
const passThrough = new PassThrough();
const piped = wrappedSocket.pipe(passThrough);
expect(piped).toEqual(passThrough);
// Clean up
wrappedSocket.destroy();
server.close();
});
tap.test('WrappedSocket - should handle encoding and address methods', async () => {
// Create a simple test server
const server = net.createServer();
await new Promise<void>((resolve) => {
server.listen(0, 'localhost', () => resolve());
});
const serverPort = (server.address() as net.AddressInfo).port;
// Create a client connection
const clientSocket = net.connect(serverPort, 'localhost');
await new Promise<void>((resolve) => {
clientSocket.once('connect', () => resolve());
});
// Wrap the socket
const wrappedSocket = new WrappedSocket(clientSocket);
// Test setEncoding
wrappedSocket.setEncoding('utf8');
// Test address method
const addr = wrappedSocket.address();
expect(addr).toEqual(clientSocket.address());
// Test cork/uncork (if available)
wrappedSocket.cork();
wrappedSocket.uncork();
// Clean up
wrappedSocket.destroy();
server.close();
});
tap.test('WrappedSocket - should work with ConnectionManager', async () => {
// This test verifies that WrappedSocket can be used seamlessly with ConnectionManager
const { ConnectionManager } = await import('../ts/proxies/smart-proxy/connection-manager.js');
const { SecurityManager } = await import('../ts/proxies/smart-proxy/security-manager.js');
const { TimeoutManager } = await import('../ts/proxies/smart-proxy/timeout-manager.js');
// Create minimal settings
const settings = {
routes: [],
defaults: {
security: {
maxConnections: 100
}
}
};
const securityManager = new SecurityManager(settings);
const timeoutManager = new TimeoutManager(settings);
const connectionManager = new ConnectionManager(settings, securityManager, timeoutManager);
// Create a simple test server
const server = net.createServer();
await new Promise<void>((resolve) => {
server.listen(0, 'localhost', () => resolve());
});
const serverPort = (server.address() as net.AddressInfo).port;
// Create a client connection
const clientSocket = net.connect(serverPort, 'localhost');
// Wait for connection to establish
await new Promise<void>((resolve) => {
clientSocket.once('connect', () => resolve());
});
// Wrap with proxy info
const wrappedSocket = new WrappedSocket(clientSocket, '203.0.113.45', 65432);
// Create connection using wrapped socket
const record = connectionManager.createConnection(wrappedSocket);
expect(record).toBeTruthy();
expect(record!.remoteIP).toEqual('203.0.113.45'); // Should use the real client IP
expect(record!.localPort).toEqual(clientSocket.localPort);
// Clean up
connectionManager.cleanupConnection(record!, 'test-complete');
server.close();
});
export default tap.start();

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@ -0,0 +1,306 @@
import { tap, expect } from '@git.zone/tstest/tapbundle';
import * as net from 'net';
import * as plugins from '../ts/plugins.js';
// Import SmartProxy
import { SmartProxy } from '../ts/index.js';
// Import types through type-only imports
import type { ConnectionManager } from '../ts/proxies/smart-proxy/connection-manager.js';
import type { IConnectionRecord } from '../ts/proxies/smart-proxy/models/interfaces.js';
tap.test('zombie connection cleanup - verify inactivity check detects and cleans destroyed sockets', async () => {
console.log('\n=== Zombie Connection Cleanup Test ===');
console.log('Purpose: Verify that connections with destroyed sockets are detected and cleaned up');
console.log('Setup: Client → OuterProxy (8590) → InnerProxy (8591) → Backend (9998)');
// Create backend server that can be controlled
let acceptConnections = true;
let destroyImmediately = false;
const backendConnections: net.Socket[] = [];
const backend = net.createServer((socket) => {
console.log('Backend: Connection received');
backendConnections.push(socket);
if (destroyImmediately) {
console.log('Backend: Destroying connection immediately');
socket.destroy();
} else {
socket.on('data', (data) => {
console.log('Backend: Received data, echoing back');
socket.write(data);
});
}
});
await new Promise<void>((resolve) => {
backend.listen(9998, () => {
console.log('✓ Backend server started on port 9998');
resolve();
});
});
// Create InnerProxy with faster inactivity check for testing
const innerProxy = new SmartProxy({
ports: [8591],
enableDetailedLogging: true,
inactivityTimeout: 5000, // 5 seconds for faster testing
inactivityCheckInterval: 1000, // Check every second
routes: [{
name: 'to-backend',
match: { ports: 8591 },
action: {
type: 'forward',
target: {
host: 'localhost',
port: 9998
}
}
}]
});
// Create OuterProxy with faster inactivity check
const outerProxy = new SmartProxy({
ports: [8590],
enableDetailedLogging: true,
inactivityTimeout: 5000, // 5 seconds for faster testing
inactivityCheckInterval: 1000, // Check every second
routes: [{
name: 'to-inner',
match: { ports: 8590 },
action: {
type: 'forward',
target: {
host: 'localhost',
port: 8591
}
}
}]
});
await innerProxy.start();
console.log('✓ InnerProxy started on port 8591');
await outerProxy.start();
console.log('✓ OuterProxy started on port 8590');
// Helper to get connection details
const getConnectionDetails = () => {
const outerConnMgr = (outerProxy as any).connectionManager as ConnectionManager;
const innerConnMgr = (innerProxy as any).connectionManager as ConnectionManager;
const outerRecords = Array.from((outerConnMgr as any).connectionRecords.values()) as IConnectionRecord[];
const innerRecords = Array.from((innerConnMgr as any).connectionRecords.values()) as IConnectionRecord[];
return {
outer: {
count: outerConnMgr.getConnectionCount(),
records: outerRecords,
zombies: outerRecords.filter(r =>
!r.connectionClosed &&
r.incoming?.destroyed &&
(r.outgoing?.destroyed ?? true)
),
halfZombies: outerRecords.filter(r =>
!r.connectionClosed &&
(r.incoming?.destroyed || r.outgoing?.destroyed) &&
!(r.incoming?.destroyed && (r.outgoing?.destroyed ?? true))
)
},
inner: {
count: innerConnMgr.getConnectionCount(),
records: innerRecords,
zombies: innerRecords.filter(r =>
!r.connectionClosed &&
r.incoming?.destroyed &&
(r.outgoing?.destroyed ?? true)
),
halfZombies: innerRecords.filter(r =>
!r.connectionClosed &&
(r.incoming?.destroyed || r.outgoing?.destroyed) &&
!(r.incoming?.destroyed && (r.outgoing?.destroyed ?? true))
)
}
};
};
console.log('\n--- Test 1: Create zombie by destroying sockets without events ---');
// Create a connection and forcefully destroy sockets to create zombies
const client1 = new net.Socket();
await new Promise<void>((resolve) => {
client1.connect(8590, 'localhost', () => {
console.log('Client1 connected to OuterProxy');
client1.write('GET / HTTP/1.1\r\nHost: test.com\r\n\r\n');
// Wait for connection to be established through the chain
setTimeout(() => {
console.log('Forcefully destroying backend connections to create zombies');
// Get connection details before destruction
const beforeDetails = getConnectionDetails();
console.log(`Before destruction: Outer=${beforeDetails.outer.count}, Inner=${beforeDetails.inner.count}`);
// Destroy all backend connections without proper close events
backendConnections.forEach(conn => {
if (!conn.destroyed) {
// Remove all listeners to prevent proper cleanup
conn.removeAllListeners();
conn.destroy();
}
});
// Also destroy the client socket abruptly
client1.removeAllListeners();
client1.destroy();
resolve();
}, 500);
});
});
// Check immediately after destruction
await new Promise(resolve => setTimeout(resolve, 100));
let details = getConnectionDetails();
console.log(`\nAfter destruction:`);
console.log(` Outer: ${details.outer.count} connections, ${details.outer.zombies.length} zombies, ${details.outer.halfZombies.length} half-zombies`);
console.log(` Inner: ${details.inner.count} connections, ${details.inner.zombies.length} zombies, ${details.inner.halfZombies.length} half-zombies`);
// Wait for inactivity check to run (should detect zombies)
console.log('\nWaiting for inactivity check to detect zombies...');
await new Promise(resolve => setTimeout(resolve, 2000));
details = getConnectionDetails();
console.log(`\nAfter first inactivity check:`);
console.log(` Outer: ${details.outer.count} connections, ${details.outer.zombies.length} zombies, ${details.outer.halfZombies.length} half-zombies`);
console.log(` Inner: ${details.inner.count} connections, ${details.inner.zombies.length} zombies, ${details.inner.halfZombies.length} half-zombies`);
console.log('\n--- Test 2: Create half-zombie by destroying only one socket ---');
// Clear backend connections array
backendConnections.length = 0;
const client2 = new net.Socket();
await new Promise<void>((resolve) => {
client2.connect(8590, 'localhost', () => {
console.log('Client2 connected to OuterProxy');
client2.write('GET / HTTP/1.1\r\nHost: test.com\r\n\r\n');
setTimeout(() => {
console.log('Creating half-zombie by destroying only outgoing socket on outer proxy');
// Access the connection records directly
const outerConnMgr = (outerProxy as any).connectionManager as ConnectionManager;
const outerRecords = Array.from((outerConnMgr as any).connectionRecords.values()) as IConnectionRecord[];
// Find the active connection and destroy only its outgoing socket
const activeRecord = outerRecords.find(r => !r.connectionClosed && r.outgoing && !r.outgoing.destroyed);
if (activeRecord && activeRecord.outgoing) {
console.log('Found active connection, destroying outgoing socket');
activeRecord.outgoing.removeAllListeners();
activeRecord.outgoing.destroy();
}
resolve();
}, 500);
});
});
// Check half-zombie state
await new Promise(resolve => setTimeout(resolve, 100));
details = getConnectionDetails();
console.log(`\nAfter creating half-zombie:`);
console.log(` Outer: ${details.outer.count} connections, ${details.outer.zombies.length} zombies, ${details.outer.halfZombies.length} half-zombies`);
console.log(` Inner: ${details.inner.count} connections, ${details.inner.zombies.length} zombies, ${details.inner.halfZombies.length} half-zombies`);
// Wait for 30-second grace period (simulated by multiple checks)
console.log('\nWaiting for half-zombie grace period (30 seconds simulated)...');
// Manually age the connection to trigger half-zombie cleanup
const outerConnMgr = (outerProxy as any).connectionManager as ConnectionManager;
const records = Array.from((outerConnMgr as any).connectionRecords.values()) as IConnectionRecord[];
records.forEach(record => {
if (!record.connectionClosed) {
// Age the connection by 35 seconds
record.incomingStartTime -= 35000;
}
});
// Trigger inactivity check
await new Promise(resolve => setTimeout(resolve, 2000));
details = getConnectionDetails();
console.log(`\nAfter half-zombie cleanup:`);
console.log(` Outer: ${details.outer.count} connections, ${details.outer.zombies.length} zombies, ${details.outer.halfZombies.length} half-zombies`);
console.log(` Inner: ${details.inner.count} connections, ${details.inner.zombies.length} zombies, ${details.inner.halfZombies.length} half-zombies`);
// Clean up client2 properly
if (!client2.destroyed) {
client2.destroy();
}
console.log('\n--- Test 3: Rapid zombie creation under load ---');
// Create multiple connections rapidly and destroy them
const rapidClients: net.Socket[] = [];
for (let i = 0; i < 5; i++) {
const client = new net.Socket();
rapidClients.push(client);
client.connect(8590, 'localhost', () => {
console.log(`Rapid client ${i} connected`);
client.write('GET / HTTP/1.1\r\nHost: test.com\r\n\r\n');
// Destroy after random delay
setTimeout(() => {
client.removeAllListeners();
client.destroy();
}, Math.random() * 500);
});
// Small delay between connections
await new Promise(resolve => setTimeout(resolve, 50));
}
// Wait a bit
await new Promise(resolve => setTimeout(resolve, 1000));
details = getConnectionDetails();
console.log(`\nAfter rapid connections:`);
console.log(` Outer: ${details.outer.count} connections, ${details.outer.zombies.length} zombies, ${details.outer.halfZombies.length} half-zombies`);
console.log(` Inner: ${details.inner.count} connections, ${details.inner.zombies.length} zombies, ${details.inner.halfZombies.length} half-zombies`);
// Wait for cleanup
console.log('\nWaiting for final cleanup...');
await new Promise(resolve => setTimeout(resolve, 3000));
details = getConnectionDetails();
console.log(`\nFinal state:`);
console.log(` Outer: ${details.outer.count} connections, ${details.outer.zombies.length} zombies, ${details.outer.halfZombies.length} half-zombies`);
console.log(` Inner: ${details.inner.count} connections, ${details.inner.zombies.length} zombies, ${details.inner.halfZombies.length} half-zombies`);
// Cleanup
await outerProxy.stop();
await innerProxy.stop();
backend.close();
// Verify all connections are cleaned up
console.log('\n--- Verification ---');
if (details.outer.count === 0 && details.inner.count === 0) {
console.log('✅ PASS: All zombie connections were cleaned up');
} else {
console.log('❌ FAIL: Some connections remain');
}
expect(details.outer.count).toEqual(0);
expect(details.inner.count).toEqual(0);
expect(details.outer.zombies.length).toEqual(0);
expect(details.inner.zombies.length).toEqual(0);
expect(details.outer.halfZombies.length).toEqual(0);
expect(details.inner.halfZombies.length).toEqual(0);
});
tap.start();

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@ -3,6 +3,6 @@
*/
export const commitinfo = {
name: '@push.rocks/smartproxy',
version: '19.5.2',
version: '19.5.19',
description: 'A powerful proxy package with unified route-based configuration for high traffic management. Features include SSL/TLS support, flexible routing patterns, WebSocket handling, advanced security options, and automatic ACME certificate management.'
}

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@ -1,34 +0,0 @@
// Port80Handler removed - use SmartCertManager instead
import { Port80HandlerEvents } from './types.js';
import type { ICertificateData, ICertificateFailure, ICertificateExpiring } from './types.js';
/**
* Subscribers callback definitions for Port80Handler events
*/
export interface Port80HandlerSubscribers {
onCertificateIssued?: (data: ICertificateData) => void;
onCertificateRenewed?: (data: ICertificateData) => void;
onCertificateFailed?: (data: ICertificateFailure) => void;
onCertificateExpiring?: (data: ICertificateExpiring) => void;
}
/**
* Subscribes to Port80Handler events based on provided callbacks
*/
export function subscribeToPort80Handler(
handler: any,
subscribers: Port80HandlerSubscribers
): void {
if (subscribers.onCertificateIssued) {
handler.on(Port80HandlerEvents.CERTIFICATE_ISSUED, subscribers.onCertificateIssued);
}
if (subscribers.onCertificateRenewed) {
handler.on(Port80HandlerEvents.CERTIFICATE_RENEWED, subscribers.onCertificateRenewed);
}
if (subscribers.onCertificateFailed) {
handler.on(Port80HandlerEvents.CERTIFICATE_FAILED, subscribers.onCertificateFailed);
}
if (subscribers.onCertificateExpiring) {
handler.on(Port80HandlerEvents.CERTIFICATE_EXPIRING, subscribers.onCertificateExpiring);
}
}

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@ -1,91 +0,0 @@
import * as plugins from '../plugins.js';
/**
* Shared types for certificate management and domain options
*/
/**
* Domain forwarding configuration
*/
export interface IForwardConfig {
ip: string;
port: number;
}
/**
* Domain configuration options
*/
export interface IDomainOptions {
domainName: string;
sslRedirect: boolean; // if true redirects the request to port 443
acmeMaintenance: boolean; // tries to always have a valid cert for this domain
forward?: IForwardConfig; // forwards all http requests to that target
acmeForward?: IForwardConfig; // forwards letsencrypt requests to this config
}
/**
* Certificate data that can be emitted via events or set from outside
*/
export interface ICertificateData {
domain: string;
certificate: string;
privateKey: string;
expiryDate: Date;
}
/**
* Events emitted by the Port80Handler
*/
export enum Port80HandlerEvents {
CERTIFICATE_ISSUED = 'certificate-issued',
CERTIFICATE_RENEWED = 'certificate-renewed',
CERTIFICATE_FAILED = 'certificate-failed',
CERTIFICATE_EXPIRING = 'certificate-expiring',
MANAGER_STARTED = 'manager-started',
MANAGER_STOPPED = 'manager-stopped',
REQUEST_FORWARDED = 'request-forwarded',
}
/**
* Certificate failure payload type
*/
export interface ICertificateFailure {
domain: string;
error: string;
isRenewal: boolean;
}
/**
* Certificate expiry payload type
*/
export interface ICertificateExpiring {
domain: string;
expiryDate: Date;
daysRemaining: number;
}
/**
* Forwarding configuration for specific domains in ACME setup
*/
export interface IDomainForwardConfig {
domain: string;
forwardConfig?: IForwardConfig;
acmeForwardConfig?: IForwardConfig;
sslRedirect?: boolean;
}
/**
* Unified ACME configuration options used across proxies and handlers
*/
export interface IAcmeOptions {
accountEmail?: string; // Email for Let's Encrypt account
enabled?: boolean; // Whether ACME is enabled
port?: number; // Port to listen on for ACME challenges (default: 80)
useProduction?: boolean; // Use production environment (default: staging)
httpsRedirectPort?: number; // Port to redirect HTTP requests to HTTPS (default: 443)
renewThresholdDays?: number; // Days before expiry to renew certificates
renewCheckIntervalHours?: number; // How often to check for renewals (in hours)
autoRenew?: boolean; // Whether to automatically renew certificates
certificateStore?: string; // Directory to store certificates
skipConfiguredCerts?: boolean; // Skip domains with existing certificates
domainForwards?: IDomainForwardConfig[]; // Domain-specific forwarding configs
}

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@ -5,3 +5,5 @@
export * from './common-types.js';
export * from './socket-augmentation.js';
export * from './route-context.js';
export * from './wrapped-socket.js';
export * from './socket-types.js';

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@ -0,0 +1,21 @@
import * as net from 'net';
import { WrappedSocket } from './wrapped-socket.js';
/**
* Type guard to check if a socket is a WrappedSocket
*/
export function isWrappedSocket(socket: net.Socket | WrappedSocket): socket is WrappedSocket {
return socket instanceof WrappedSocket || 'socket' in socket;
}
/**
* Helper to get the underlying socket from either a Socket or WrappedSocket
*/
export function getUnderlyingSocket(socket: net.Socket | WrappedSocket): net.Socket {
return isWrappedSocket(socket) ? socket.socket : socket;
}
/**
* Type that represents either a regular socket or a wrapped socket
*/
export type AnySocket = net.Socket | WrappedSocket;

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import * as plugins from '../../plugins.js';
/**
* WrappedSocket wraps a regular net.Socket to provide transparent access
* to the real client IP and port when behind a proxy using PROXY protocol.
*
* This is the FOUNDATION for all PROXY protocol support and must be implemented
* before any protocol parsing can occur.
*
* This implementation uses a Proxy to delegate all properties and methods
* to the underlying socket while allowing override of specific properties.
*/
export class WrappedSocket {
public readonly socket: plugins.net.Socket;
private realClientIP?: string;
private realClientPort?: number;
// Make TypeScript happy by declaring the Socket methods that will be proxied
[key: string]: any;
constructor(
socket: plugins.net.Socket,
realClientIP?: string,
realClientPort?: number
) {
this.socket = socket;
this.realClientIP = realClientIP;
this.realClientPort = realClientPort;
// Create a proxy that delegates everything to the underlying socket
return new Proxy(this, {
get(target, prop, receiver) {
// Override specific properties
if (prop === 'remoteAddress') {
return target.remoteAddress;
}
if (prop === 'remotePort') {
return target.remotePort;
}
if (prop === 'socket') {
return target.socket;
}
if (prop === 'realClientIP') {
return target.realClientIP;
}
if (prop === 'realClientPort') {
return target.realClientPort;
}
if (prop === 'isFromTrustedProxy') {
return target.isFromTrustedProxy;
}
if (prop === 'setProxyInfo') {
return target.setProxyInfo.bind(target);
}
// For all other properties/methods, delegate to the underlying socket
const value = target.socket[prop as keyof plugins.net.Socket];
if (typeof value === 'function') {
return value.bind(target.socket);
}
return value;
},
set(target, prop, value) {
// Set on the underlying socket
(target.socket as any)[prop] = value;
return true;
}
}) as any;
}
/**
* Returns the real client IP if available, otherwise the socket's remote address
*/
get remoteAddress(): string | undefined {
return this.realClientIP || this.socket.remoteAddress;
}
/**
* Returns the real client port if available, otherwise the socket's remote port
*/
get remotePort(): number | undefined {
return this.realClientPort || this.socket.remotePort;
}
/**
* Indicates if this connection came through a trusted proxy
*/
get isFromTrustedProxy(): boolean {
return !!this.realClientIP;
}
/**
* Updates the real client information (called after parsing PROXY protocol)
*/
setProxyInfo(ip: string, port: number): void {
this.realClientIP = ip;
this.realClientPort = port;
}
}

21
ts/core/routing/index.ts Normal file
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/**
* Unified routing module
* Provides all routing functionality in a centralized location
*/
// Export all types
export * from './types.js';
// Export all matchers
export * from './matchers/index.js';
// Export specificity calculator
export * from './specificity.js';
// Export route management
export * from './route-manager.js';
export * from './route-utils.js';
// Convenience re-exports
export { matchers } from './matchers/index.js';
export { RouteSpecificity } from './specificity.js';

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import type { IMatcher, IDomainMatchOptions } from '../types.js';
/**
* DomainMatcher provides comprehensive domain matching functionality
* Supporting exact matches, wildcards, and case-insensitive matching
*/
export class DomainMatcher implements IMatcher<boolean, IDomainMatchOptions> {
private static wildcardToRegex(pattern: string): RegExp {
// Escape special regex characters except *
const escaped = pattern.replace(/[.+?^${}()|[\]\\]/g, '\\$&');
// Replace * with regex equivalent
const regexPattern = escaped.replace(/\*/g, '.*');
return new RegExp(`^${regexPattern}$`, 'i');
}
/**
* Match a domain pattern against a hostname
* @param pattern The pattern to match (supports wildcards like *.example.com)
* @param hostname The hostname to test
* @param options Matching options
* @returns true if the hostname matches the pattern
*/
static match(
pattern: string,
hostname: string,
options: IDomainMatchOptions = {}
): boolean {
// Handle null/undefined cases
if (!pattern || !hostname) {
return false;
}
// Normalize inputs
const normalizedPattern = pattern.toLowerCase().trim();
const normalizedHostname = hostname.toLowerCase().trim();
// Remove trailing dots (FQDN normalization)
const cleanPattern = normalizedPattern.replace(/\.$/, '');
const cleanHostname = normalizedHostname.replace(/\.$/, '');
// Exact match (most common case)
if (cleanPattern === cleanHostname) {
return true;
}
// Wildcard matching
if (options.allowWildcards !== false && cleanPattern.includes('*')) {
const regex = this.wildcardToRegex(cleanPattern);
return regex.test(cleanHostname);
}
// No match
return false;
}
/**
* Check if a pattern contains wildcards
*/
static isWildcardPattern(pattern: string): boolean {
return pattern.includes('*');
}
/**
* Calculate the specificity of a domain pattern
* Higher values mean more specific patterns
*/
static calculateSpecificity(pattern: string): number {
if (!pattern) return 0;
let score = 0;
// Exact domains are most specific
if (!pattern.includes('*')) {
score += 100;
}
// Count domain segments
const segments = pattern.split('.');
score += segments.length * 10;
// Penalize wildcards based on position
if (pattern.startsWith('*')) {
score -= 50; // Leading wildcard is very generic
} else if (pattern.includes('*')) {
score -= 20; // Wildcard elsewhere is less generic
}
// Bonus for longer patterns
score += pattern.length;
return score;
}
/**
* Find all matching patterns from a list
* Returns patterns sorted by specificity (most specific first)
*/
static findAllMatches(
patterns: string[],
hostname: string,
options: IDomainMatchOptions = {}
): string[] {
const matches = patterns.filter(pattern =>
this.match(pattern, hostname, options)
);
// Sort by specificity (highest first)
return matches.sort((a, b) =>
this.calculateSpecificity(b) - this.calculateSpecificity(a)
);
}
/**
* Instance method for interface compliance
*/
match(pattern: string, hostname: string, options?: IDomainMatchOptions): boolean {
return DomainMatcher.match(pattern, hostname, options);
}
}

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import type { IMatcher, IHeaderMatchOptions } from '../types.js';
/**
* HeaderMatcher provides HTTP header matching functionality
* Supporting exact matches, patterns, and case-insensitive matching
*/
export class HeaderMatcher implements IMatcher<boolean, IHeaderMatchOptions> {
/**
* Match a header value against a pattern
* @param pattern The pattern to match
* @param value The header value to test
* @param options Matching options
* @returns true if the value matches the pattern
*/
static match(
pattern: string,
value: string | undefined,
options: IHeaderMatchOptions = {}
): boolean {
// Handle missing header
if (value === undefined || value === null) {
return pattern === '' || pattern === null || pattern === undefined;
}
// Convert to string and normalize
const normalizedPattern = String(pattern);
const normalizedValue = String(value);
// Apply case sensitivity
const comparePattern = options.caseInsensitive !== false
? normalizedPattern.toLowerCase()
: normalizedPattern;
const compareValue = options.caseInsensitive !== false
? normalizedValue.toLowerCase()
: normalizedValue;
// Exact match
if (options.exactMatch !== false) {
return comparePattern === compareValue;
}
// Pattern matching (simple wildcard support)
if (comparePattern.includes('*')) {
const regex = new RegExp(
'^' + comparePattern.replace(/\*/g, '.*') + '$',
options.caseInsensitive !== false ? 'i' : ''
);
return regex.test(normalizedValue);
}
// Contains match (if not exact match mode)
return compareValue.includes(comparePattern);
}
/**
* Match multiple headers against a set of required headers
* @param requiredHeaders Headers that must match
* @param actualHeaders Actual request headers
* @param options Matching options
* @returns true if all required headers match
*/
static matchAll(
requiredHeaders: Record<string, string>,
actualHeaders: Record<string, string | string[] | undefined>,
options: IHeaderMatchOptions = {}
): boolean {
for (const [name, pattern] of Object.entries(requiredHeaders)) {
const headerName = options.caseInsensitive !== false
? name.toLowerCase()
: name;
// Find the actual header (case-insensitive search if needed)
let actualValue: string | undefined;
if (options.caseInsensitive !== false) {
const actualKey = Object.keys(actualHeaders).find(
key => key.toLowerCase() === headerName
);
const rawValue = actualKey ? actualHeaders[actualKey] : undefined;
// Handle array values (multiple headers with same name)
actualValue = Array.isArray(rawValue) ? rawValue.join(', ') : rawValue;
} else {
const rawValue = actualHeaders[name];
// Handle array values (multiple headers with same name)
actualValue = Array.isArray(rawValue) ? rawValue.join(', ') : rawValue;
}
// Check if this header matches
if (!this.match(pattern, actualValue, options)) {
return false;
}
}
return true;
}
/**
* Calculate the specificity of header requirements
* More headers = more specific
*/
static calculateSpecificity(headers: Record<string, string>): number {
const count = Object.keys(headers).length;
let score = count * 10;
// Bonus for headers without wildcards (more specific)
for (const value of Object.values(headers)) {
if (!value.includes('*')) {
score += 5;
}
}
return score;
}
/**
* Instance method for interface compliance
*/
match(pattern: string, value: string, options?: IHeaderMatchOptions): boolean {
return HeaderMatcher.match(pattern, value, options);
}
}

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@ -0,0 +1,22 @@
/**
* Unified matching utilities for the routing system
* All route matching logic should use these matchers for consistency
*/
export * from './domain.js';
export * from './path.js';
export * from './ip.js';
export * from './header.js';
// Re-export for convenience
import { DomainMatcher } from './domain.js';
import { PathMatcher } from './path.js';
import { IpMatcher } from './ip.js';
import { HeaderMatcher } from './header.js';
export const matchers = {
domain: DomainMatcher,
path: PathMatcher,
ip: IpMatcher,
header: HeaderMatcher
} as const;

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@ -0,0 +1,207 @@
import type { IMatcher, IIpMatchOptions } from '../types.js';
/**
* IpMatcher provides comprehensive IP address matching functionality
* Supporting exact matches, CIDR notation, ranges, and wildcards
*/
export class IpMatcher implements IMatcher<boolean, IIpMatchOptions> {
/**
* Check if a value is a valid IPv4 address
*/
static isValidIpv4(ip: string): boolean {
const parts = ip.split('.');
if (parts.length !== 4) return false;
return parts.every(part => {
const num = parseInt(part, 10);
return !isNaN(num) && num >= 0 && num <= 255 && part === num.toString();
});
}
/**
* Check if a value is a valid IPv6 address (simplified check)
*/
static isValidIpv6(ip: string): boolean {
// Basic IPv6 validation - can be enhanced
const ipv6Regex = /^(([0-9a-fA-F]{1,4}:){7}[0-9a-fA-F]{1,4}|::|(([0-9a-fA-F]{1,4}:){1,7}|:):|(([0-9a-fA-F]{1,4}:){1,6}|::):[0-9a-fA-F]{1,4})$/;
return ipv6Regex.test(ip);
}
/**
* Convert IP address to numeric value for comparison
*/
private static ipToNumber(ip: string): number {
const parts = ip.split('.');
return parts.reduce((acc, part, index) => {
return acc + (parseInt(part, 10) << (8 * (3 - index)));
}, 0);
}
/**
* Match an IP against a CIDR notation pattern
*/
static matchCidr(cidr: string, ip: string): boolean {
const [range, bits] = cidr.split('/');
if (!bits || !this.isValidIpv4(range) || !this.isValidIpv4(ip)) {
return false;
}
const rangeMask = parseInt(bits, 10);
if (isNaN(rangeMask) || rangeMask < 0 || rangeMask > 32) {
return false;
}
const rangeNum = this.ipToNumber(range);
const ipNum = this.ipToNumber(ip);
const mask = (-1 << (32 - rangeMask)) >>> 0;
return (rangeNum & mask) === (ipNum & mask);
}
/**
* Match an IP against a wildcard pattern
*/
static matchWildcard(pattern: string, ip: string): boolean {
if (!this.isValidIpv4(ip)) return false;
const patternParts = pattern.split('.');
const ipParts = ip.split('.');
if (patternParts.length !== 4) return false;
return patternParts.every((part, index) => {
if (part === '*') return true;
return part === ipParts[index];
});
}
/**
* Match an IP against a range (e.g., "192.168.1.1-192.168.1.100")
*/
static matchRange(range: string, ip: string): boolean {
const [start, end] = range.split('-').map(s => s.trim());
if (!start || !end || !this.isValidIpv4(start) || !this.isValidIpv4(end) || !this.isValidIpv4(ip)) {
return false;
}
const startNum = this.ipToNumber(start);
const endNum = this.ipToNumber(end);
const ipNum = this.ipToNumber(ip);
return ipNum >= startNum && ipNum <= endNum;
}
/**
* Match an IP pattern against an IP address
* Supports multiple formats:
* - Exact match: "192.168.1.1"
* - CIDR: "192.168.1.0/24"
* - Wildcard: "192.168.1.*"
* - Range: "192.168.1.1-192.168.1.100"
*/
static match(
pattern: string,
ip: string,
options: IIpMatchOptions = {}
): boolean {
// Handle null/undefined cases
if (!pattern || !ip) {
return false;
}
// Normalize inputs
const normalizedPattern = pattern.trim();
const normalizedIp = ip.trim();
// Extract IPv4 from IPv6-mapped addresses (::ffff:192.168.1.1)
const ipv4Match = normalizedIp.match(/::ffff:(\d+\.\d+\.\d+\.\d+)/i);
const testIp = ipv4Match ? ipv4Match[1] : normalizedIp;
// Exact match
if (normalizedPattern === testIp) {
return true;
}
// CIDR notation
if (options.allowCidr !== false && normalizedPattern.includes('/')) {
return this.matchCidr(normalizedPattern, testIp);
}
// Wildcard matching
if (normalizedPattern.includes('*')) {
return this.matchWildcard(normalizedPattern, testIp);
}
// Range matching
if (options.allowRanges !== false && normalizedPattern.includes('-')) {
return this.matchRange(normalizedPattern, testIp);
}
return false;
}
/**
* Check if an IP is authorized based on allow and block lists
*/
static isAuthorized(
ip: string,
allowList: string[] = [],
blockList: string[] = []
): boolean {
// If IP is in block list, deny
if (blockList.some(pattern => this.match(pattern, ip))) {
return false;
}
// If allow list is empty, allow all (except blocked)
if (allowList.length === 0) {
return true;
}
// If allow list exists, IP must match
return allowList.some(pattern => this.match(pattern, ip));
}
/**
* Calculate the specificity of an IP pattern
* Higher values mean more specific patterns
*/
static calculateSpecificity(pattern: string): number {
if (!pattern) return 0;
let score = 0;
// Exact IPs are most specific
if (this.isValidIpv4(pattern) || this.isValidIpv6(pattern)) {
score += 100;
}
// CIDR notation
if (pattern.includes('/')) {
const [, bits] = pattern.split('/');
const maskBits = parseInt(bits, 10);
if (!isNaN(maskBits)) {
score += maskBits; // Higher mask = more specific
}
}
// Wildcard patterns
const wildcards = (pattern.match(/\*/g) || []).length;
score -= wildcards * 20; // More wildcards = less specific
// Range patterns are somewhat specific
if (pattern.includes('-')) {
score += 30;
}
return score;
}
/**
* Instance method for interface compliance
*/
match(pattern: string, ip: string, options?: IIpMatchOptions): boolean {
return IpMatcher.match(pattern, ip, options);
}
}

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@ -0,0 +1,184 @@
import type { IMatcher, IPathMatchResult } from '../types.js';
/**
* PathMatcher provides comprehensive path matching functionality
* Supporting exact matches, wildcards, and parameter extraction
*/
export class PathMatcher implements IMatcher<IPathMatchResult> {
/**
* Convert a path pattern to a regex and extract parameter names
* Supports:
* - Exact paths: /api/users
* - Wildcards: /api/*
* - Parameters: /api/users/:id
* - Mixed: /api/users/:id/*
*/
private static patternToRegex(pattern: string): {
regex: RegExp;
paramNames: string[]
} {
const paramNames: string[] = [];
let regexPattern = pattern;
// Escape special regex characters except : and *
regexPattern = regexPattern.replace(/[.+?^${}()|[\]\\]/g, '\\$&');
// Handle path parameters (:param)
regexPattern = regexPattern.replace(/:(\w+)/g, (match, paramName) => {
paramNames.push(paramName);
return '([^/]+)'; // Match any non-slash characters
});
// Handle wildcards
regexPattern = regexPattern.replace(/\*/g, '(.*)');
// Ensure the pattern matches from start
regexPattern = `^${regexPattern}`;
// If pattern doesn't end with wildcard, ensure it matches to end
// But only for patterns that don't have parameters or wildcards
if (!pattern.includes('*') && !pattern.includes(':') && !pattern.endsWith('/')) {
regexPattern = `${regexPattern}$`;
}
return {
regex: new RegExp(regexPattern),
paramNames
};
}
/**
* Match a path pattern against a request path
* @param pattern The pattern to match
* @param path The request path to test
* @returns Match result with params and remainder
*/
static match(pattern: string, path: string): IPathMatchResult {
// Handle null/undefined cases
if (!pattern || !path) {
return { matches: false };
}
// Normalize paths (remove trailing slashes unless it's just "/")
const normalizedPattern = pattern === '/' ? '/' : pattern.replace(/\/$/, '');
const normalizedPath = path === '/' ? '/' : path.replace(/\/$/, '');
// Exact match (most common case)
if (normalizedPattern === normalizedPath) {
return {
matches: true,
pathMatch: normalizedPath,
pathRemainder: '',
params: {}
};
}
// Pattern matching (wildcards and parameters)
const { regex, paramNames } = this.patternToRegex(normalizedPattern);
const match = normalizedPath.match(regex);
if (!match) {
return { matches: false };
}
// Extract parameters
const params: Record<string, string> = {};
paramNames.forEach((name, index) => {
params[name] = match[index + 1];
});
// Calculate path match and remainder
let pathMatch = match[0];
let pathRemainder = normalizedPath.substring(pathMatch.length);
// Handle wildcard captures
if (normalizedPattern.includes('*') && match.length > paramNames.length + 1) {
const wildcardCapture = match[match.length - 1];
if (wildcardCapture) {
pathRemainder = wildcardCapture;
pathMatch = normalizedPath.substring(0, normalizedPath.length - wildcardCapture.length);
}
}
// Clean up path match (remove trailing slash if present)
if (pathMatch !== '/' && pathMatch.endsWith('/')) {
pathMatch = pathMatch.slice(0, -1);
}
return {
matches: true,
pathMatch,
pathRemainder,
params
};
}
/**
* Check if a pattern contains parameters or wildcards
*/
static isDynamicPattern(pattern: string): boolean {
return pattern.includes(':') || pattern.includes('*');
}
/**
* Calculate the specificity of a path pattern
* Higher values mean more specific patterns
*/
static calculateSpecificity(pattern: string): number {
if (!pattern) return 0;
let score = 0;
// Exact paths are most specific
if (!this.isDynamicPattern(pattern)) {
score += 100;
}
// Count path segments
const segments = pattern.split('/').filter(s => s.length > 0);
score += segments.length * 10;
// Count static segments (more static = more specific)
const staticSegments = segments.filter(s => !s.startsWith(':') && s !== '*');
score += staticSegments.length * 20;
// Penalize wildcards and parameters
const wildcards = (pattern.match(/\*/g) || []).length;
const params = (pattern.match(/:/g) || []).length;
score -= wildcards * 30; // Wildcards are very generic
score -= params * 10; // Parameters are somewhat generic
// Bonus for longer patterns
score += pattern.length;
return score;
}
/**
* Find all matching patterns from a list
* Returns patterns sorted by specificity (most specific first)
*/
static findAllMatches(patterns: string[], path: string): Array<{
pattern: string;
result: IPathMatchResult;
}> {
const matches = patterns
.map(pattern => ({
pattern,
result: this.match(pattern, path)
}))
.filter(({ result }) => result.matches);
// Sort by specificity (highest first)
return matches.sort((a, b) =>
this.calculateSpecificity(b.pattern) - this.calculateSpecificity(a.pattern)
);
}
/**
* Instance method for interface compliance
*/
match(pattern: string, path: string): IPathMatchResult {
return PathMatcher.match(pattern, path);
}
}

View File

@ -7,20 +7,15 @@ import type {
IRouteContext
} from '../../proxies/smart-proxy/models/route-types.js';
import {
matchDomain,
matchRouteDomain,
matchPath,
matchIpPattern,
matchIpCidr,
ipToNumber,
isIpAuthorized,
calculateRouteSpecificity
} from './route-utils.js';
import { DomainMatcher, PathMatcher, IpMatcher } from './matchers/index.js';
/**
* Result of route matching
* Result of route lookup
*/
export interface IRouteMatchResult {
export interface IRouteLookupResult {
route: IRouteConfig;
// Additional match parameters (path, query, etc.)
params?: Record<string, string>;
@ -219,7 +214,7 @@ export class SharedRouteManager extends plugins.EventEmitter {
/**
* Find the matching route for a connection
*/
public findMatchingRoute(context: IRouteContext): IRouteMatchResult | null {
public findMatchingRoute(context: IRouteContext): IRouteLookupResult | null {
// Get routes for this port if using port-based filtering
const routesToCheck = context.port
? (this.portMap.get(context.port) || [])
@ -258,21 +253,21 @@ export class SharedRouteManager extends plugins.EventEmitter {
? route.match.domains
: [route.match.domains];
if (!domains.some(domainPattern => this.matchDomain(domainPattern, context.domain!))) {
if (!domains.some(domainPattern => DomainMatcher.match(domainPattern, context.domain!))) {
return false;
}
}
// Check path match if specified
if (route.match.path && context.path) {
if (!this.matchPath(route.match.path, context.path)) {
if (!PathMatcher.match(route.match.path, context.path).matches) {
return false;
}
}
// Check client IP match if specified
if (route.match.clientIp && context.clientIp) {
if (!route.match.clientIp.some(ip => this.matchIpPattern(ip, context.clientIp))) {
if (!route.match.clientIp.some(ip => IpMatcher.match(ip, context.clientIp))) {
return false;
}
}
@ -311,45 +306,7 @@ export class SharedRouteManager extends plugins.EventEmitter {
return true;
}
/**
* Match a domain pattern against a domain
* @deprecated Use the matchDomain function from route-utils.js instead
*/
public matchDomain(pattern: string, domain: string): boolean {
return matchDomain(pattern, domain);
}
/**
* Match a path pattern against a path
* @deprecated Use the matchPath function from route-utils.js instead
*/
public matchPath(pattern: string, path: string): boolean {
return matchPath(pattern, path);
}
/**
* Match an IP pattern against a pattern
* @deprecated Use the matchIpPattern function from route-utils.js instead
*/
public matchIpPattern(pattern: string, ip: string): boolean {
return matchIpPattern(pattern, ip);
}
/**
* Match an IP against a CIDR pattern
* @deprecated Use the matchIpCidr function from route-utils.js instead
*/
public matchIpCidr(cidr: string, ip: string): boolean {
return matchIpCidr(cidr, ip);
}
/**
* Convert an IP address to a numeric value
* @deprecated Use the ipToNumber function from route-utils.js instead
*/
private ipToNumber(ip: string): number {
return ipToNumber(ip);
}
/**
* Validate the route configuration and return any warnings
@ -479,11 +436,4 @@ export class SharedRouteManager extends plugins.EventEmitter {
return true;
}
/**
* Check if route1 is more specific than route2
* @deprecated Use the calculateRouteSpecificity function from route-utils.js instead
*/
private isRouteMoreSpecific(match1: IRouteMatch, match2: IRouteMatch): boolean {
return calculateRouteSpecificity(match1) > calculateRouteSpecificity(match2);
}
}

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@ -0,0 +1,88 @@
/**
* Route matching utilities for SmartProxy components
*
* This file provides utility functions that use the unified matchers
* and additional route-specific utilities.
*/
import { DomainMatcher, PathMatcher, IpMatcher, HeaderMatcher } from './matchers/index.js';
import { RouteSpecificity } from './specificity.js';
import type { IRouteSpecificity } from './types.js';
import type { IRouteConfig } from '../../proxies/smart-proxy/models/route-types.js';
/**
* Match domains from a route against a given domain
*
* @param domains Array or single domain pattern to match against
* @param domain Domain to match
* @returns Whether the domain matches any of the patterns
*/
export function matchRouteDomain(domains: string | string[] | undefined, domain: string | undefined): boolean {
// If no domains specified in the route, match all domains
if (!domains) {
return true;
}
// If no domain in the request, can't match domain-specific routes
if (!domain) {
return false;
}
const patterns = Array.isArray(domains) ? domains : [domains];
return patterns.some(pattern => DomainMatcher.match(pattern, domain));
}
/**
* Calculate route specificity score
* Higher score means more specific matching criteria
*
* @param match Match criteria to evaluate
* @returns Numeric specificity score
*/
export function calculateRouteSpecificity(match: {
domains?: string | string[];
path?: string;
clientIp?: string[];
tlsVersion?: string[];
headers?: Record<string, string | RegExp>;
}): number {
let score = 0;
// Path specificity using PathMatcher
if (match.path) {
score += PathMatcher.calculateSpecificity(match.path);
}
// Domain specificity using DomainMatcher
if (match.domains) {
const domains = Array.isArray(match.domains) ? match.domains : [match.domains];
// Use the highest specificity among all domains
const domainScore = Math.max(...domains.map(d => DomainMatcher.calculateSpecificity(d)));
score += domainScore;
}
// Headers specificity using HeaderMatcher
if (match.headers) {
const stringHeaders: Record<string, string> = {};
for (const [key, value] of Object.entries(match.headers)) {
stringHeaders[key] = value instanceof RegExp ? value.source : value;
}
score += HeaderMatcher.calculateSpecificity(stringHeaders);
}
// Client IP adds some specificity
if (match.clientIp && match.clientIp.length > 0) {
// Use the first IP pattern for specificity
score += IpMatcher.calculateSpecificity(match.clientIp[0]);
}
// TLS version adds minimal specificity
if (match.tlsVersion && match.tlsVersion.length > 0) {
score += match.tlsVersion.length * 10;
}
return score;
}

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@ -0,0 +1,141 @@
import type { IRouteConfig } from '../../proxies/smart-proxy/models/route-types.js';
import type { IRouteSpecificity } from './types.js';
import { DomainMatcher, PathMatcher, IpMatcher, HeaderMatcher } from './matchers/index.js';
/**
* Unified route specificity calculator
* Provides consistent specificity scoring across all routing components
*/
export class RouteSpecificity {
/**
* Calculate the total specificity score for a route
* Higher scores indicate more specific routes that should match first
*/
static calculate(route: IRouteConfig): IRouteSpecificity {
const specificity: IRouteSpecificity = {
pathSpecificity: 0,
domainSpecificity: 0,
ipSpecificity: 0,
headerSpecificity: 0,
tlsSpecificity: 0,
totalScore: 0
};
// Path specificity
if (route.match.path) {
specificity.pathSpecificity = PathMatcher.calculateSpecificity(route.match.path);
}
// Domain specificity
if (route.match.domains) {
const domains = Array.isArray(route.match.domains)
? route.match.domains
: [route.match.domains];
// Use the highest specificity among all domains
specificity.domainSpecificity = Math.max(
...domains.map(d => DomainMatcher.calculateSpecificity(d))
);
}
// IP specificity (clientIp is an array of IPs)
if (route.match.clientIp && route.match.clientIp.length > 0) {
// Use the first IP pattern for specificity calculation
specificity.ipSpecificity = IpMatcher.calculateSpecificity(route.match.clientIp[0]);
}
// Header specificity (convert RegExp values to strings)
if (route.match.headers) {
const stringHeaders: Record<string, string> = {};
for (const [key, value] of Object.entries(route.match.headers)) {
stringHeaders[key] = value instanceof RegExp ? value.source : value;
}
specificity.headerSpecificity = HeaderMatcher.calculateSpecificity(stringHeaders);
}
// TLS version specificity
if (route.match.tlsVersion && route.match.tlsVersion.length > 0) {
specificity.tlsSpecificity = route.match.tlsVersion.length * 10;
}
// Calculate total score with weights
specificity.totalScore =
specificity.pathSpecificity * 3 + // Path is most important
specificity.domainSpecificity * 2 + // Domain is second
specificity.ipSpecificity * 1.5 + // IP is moderately important
specificity.headerSpecificity * 1 + // Headers are less important
specificity.tlsSpecificity * 0.5; // TLS is least important
return specificity;
}
/**
* Compare two routes and determine which is more specific
* @returns positive if route1 is more specific, negative if route2 is more specific, 0 if equal
*/
static compare(route1: IRouteConfig, route2: IRouteConfig): number {
const spec1 = this.calculate(route1);
const spec2 = this.calculate(route2);
// First compare by total score
if (spec1.totalScore !== spec2.totalScore) {
return spec1.totalScore - spec2.totalScore;
}
// If total scores are equal, compare by individual components
// Path is most important tiebreaker
if (spec1.pathSpecificity !== spec2.pathSpecificity) {
return spec1.pathSpecificity - spec2.pathSpecificity;
}
// Then domain
if (spec1.domainSpecificity !== spec2.domainSpecificity) {
return spec1.domainSpecificity - spec2.domainSpecificity;
}
// Then IP
if (spec1.ipSpecificity !== spec2.ipSpecificity) {
return spec1.ipSpecificity - spec2.ipSpecificity;
}
// Then headers
if (spec1.headerSpecificity !== spec2.headerSpecificity) {
return spec1.headerSpecificity - spec2.headerSpecificity;
}
// Finally TLS
return spec1.tlsSpecificity - spec2.tlsSpecificity;
}
/**
* Sort routes by specificity (most specific first)
*/
static sort(routes: IRouteConfig[]): IRouteConfig[] {
return [...routes].sort((a, b) => this.compare(b, a));
}
/**
* Find the most specific route from a list
*/
static findMostSpecific(routes: IRouteConfig[]): IRouteConfig | null {
if (routes.length === 0) return null;
return routes.reduce((most, current) =>
this.compare(current, most) > 0 ? current : most
);
}
/**
* Check if a route has any matching criteria
*/
static hasMatchCriteria(route: IRouteConfig): boolean {
const match = route.match;
return !!(
match.domains ||
match.path ||
match.clientIp?.length ||
match.headers ||
match.tlsVersion?.length
);
}
}

49
ts/core/routing/types.ts Normal file
View File

@ -0,0 +1,49 @@
/**
* Core routing types used throughout the routing system
*/
export interface IPathMatchResult {
matches: boolean;
params?: Record<string, string>;
pathMatch?: string;
pathRemainder?: string;
}
export interface IRouteMatchResult {
matches: boolean;
score: number;
specificity: number;
matchedCriteria: string[];
}
export interface IDomainMatchOptions {
allowWildcards?: boolean;
caseInsensitive?: boolean;
}
export interface IIpMatchOptions {
allowCidr?: boolean;
allowRanges?: boolean;
}
export interface IHeaderMatchOptions {
caseInsensitive?: boolean;
exactMatch?: boolean;
}
export interface IRouteSpecificity {
pathSpecificity: number;
domainSpecificity: number;
ipSpecificity: number;
headerSpecificity: number;
tlsSpecificity: number;
totalScore: number;
}
export interface IMatcher<T = any, O = any> {
match(pattern: string, value: string, options?: O): T | boolean;
}
export interface IAsyncMatcher<T = any, O = any> {
match(pattern: string, value: string, options?: O): Promise<T | boolean>;
}

View File

@ -0,0 +1,275 @@
/**
* Async utility functions for SmartProxy
* Provides non-blocking alternatives to synchronous operations
*/
/**
* Delays execution for the specified number of milliseconds
* Non-blocking alternative to busy wait loops
* @param ms - Number of milliseconds to delay
* @returns Promise that resolves after the delay
*/
export async function delay(ms: number): Promise<void> {
return new Promise(resolve => setTimeout(resolve, ms));
}
/**
* Retry an async operation with exponential backoff
* @param fn - The async function to retry
* @param options - Retry options
* @returns The result of the function or throws the last error
*/
export async function retryWithBackoff<T>(
fn: () => Promise<T>,
options: {
maxAttempts?: number;
initialDelay?: number;
maxDelay?: number;
factor?: number;
onRetry?: (attempt: number, error: Error) => void;
} = {}
): Promise<T> {
const {
maxAttempts = 3,
initialDelay = 100,
maxDelay = 10000,
factor = 2,
onRetry
} = options;
let lastError: Error | null = null;
let currentDelay = initialDelay;
for (let attempt = 1; attempt <= maxAttempts; attempt++) {
try {
return await fn();
} catch (error: any) {
lastError = error;
if (attempt === maxAttempts) {
throw error;
}
if (onRetry) {
onRetry(attempt, error);
}
await delay(currentDelay);
currentDelay = Math.min(currentDelay * factor, maxDelay);
}
}
throw lastError || new Error('Retry failed');
}
/**
* Execute an async operation with a timeout
* @param fn - The async function to execute
* @param timeoutMs - Timeout in milliseconds
* @param timeoutError - Optional custom timeout error
* @returns The result of the function or throws timeout error
*/
export async function withTimeout<T>(
fn: () => Promise<T>,
timeoutMs: number,
timeoutError?: Error
): Promise<T> {
const timeoutPromise = new Promise<never>((_, reject) => {
setTimeout(() => {
reject(timeoutError || new Error(`Operation timed out after ${timeoutMs}ms`));
}, timeoutMs);
});
return Promise.race([fn(), timeoutPromise]);
}
/**
* Run multiple async operations in parallel with a concurrency limit
* @param items - Array of items to process
* @param fn - Async function to run for each item
* @param concurrency - Maximum number of concurrent operations
* @returns Array of results in the same order as input
*/
export async function parallelLimit<T, R>(
items: T[],
fn: (item: T, index: number) => Promise<R>,
concurrency: number
): Promise<R[]> {
const results: R[] = new Array(items.length);
const executing: Set<Promise<void>> = new Set();
for (let i = 0; i < items.length; i++) {
const promise = fn(items[i], i).then(result => {
results[i] = result;
executing.delete(promise);
});
executing.add(promise);
if (executing.size >= concurrency) {
await Promise.race(executing);
}
}
await Promise.all(executing);
return results;
}
/**
* Debounce an async function
* @param fn - The async function to debounce
* @param delayMs - Delay in milliseconds
* @returns Debounced function with cancel method
*/
export function debounceAsync<T extends (...args: any[]) => Promise<any>>(
fn: T,
delayMs: number
): T & { cancel: () => void } {
let timeoutId: NodeJS.Timeout | null = null;
let lastPromise: Promise<any> | null = null;
const debounced = ((...args: Parameters<T>) => {
if (timeoutId) {
clearTimeout(timeoutId);
}
lastPromise = new Promise((resolve, reject) => {
timeoutId = setTimeout(async () => {
timeoutId = null;
try {
const result = await fn(...args);
resolve(result);
} catch (error) {
reject(error);
}
}, delayMs);
});
return lastPromise;
}) as any;
debounced.cancel = () => {
if (timeoutId) {
clearTimeout(timeoutId);
timeoutId = null;
}
};
return debounced as T & { cancel: () => void };
}
/**
* Create a mutex for ensuring exclusive access to a resource
*/
export class AsyncMutex {
private queue: Array<() => void> = [];
private locked = false;
async acquire(): Promise<() => void> {
if (!this.locked) {
this.locked = true;
return () => this.release();
}
return new Promise<() => void>(resolve => {
this.queue.push(() => {
resolve(() => this.release());
});
});
}
private release(): void {
const next = this.queue.shift();
if (next) {
next();
} else {
this.locked = false;
}
}
async runExclusive<T>(fn: () => Promise<T>): Promise<T> {
const release = await this.acquire();
try {
return await fn();
} finally {
release();
}
}
}
/**
* Circuit breaker for protecting against cascading failures
*/
export class CircuitBreaker {
private failureCount = 0;
private lastFailureTime = 0;
private state: 'closed' | 'open' | 'half-open' = 'closed';
constructor(
private options: {
failureThreshold: number;
resetTimeout: number;
onStateChange?: (state: 'closed' | 'open' | 'half-open') => void;
}
) {}
async execute<T>(fn: () => Promise<T>): Promise<T> {
if (this.state === 'open') {
if (Date.now() - this.lastFailureTime > this.options.resetTimeout) {
this.setState('half-open');
} else {
throw new Error('Circuit breaker is open');
}
}
try {
const result = await fn();
this.onSuccess();
return result;
} catch (error) {
this.onFailure();
throw error;
}
}
private onSuccess(): void {
this.failureCount = 0;
if (this.state !== 'closed') {
this.setState('closed');
}
}
private onFailure(): void {
this.failureCount++;
this.lastFailureTime = Date.now();
if (this.failureCount >= this.options.failureThreshold) {
this.setState('open');
}
}
private setState(state: 'closed' | 'open' | 'half-open'): void {
if (this.state !== state) {
this.state = state;
if (this.options.onStateChange) {
this.options.onStateChange(state);
}
}
}
isOpen(): boolean {
return this.state === 'open';
}
getState(): 'closed' | 'open' | 'half-open' {
return this.state;
}
recordSuccess(): void {
this.onSuccess();
}
recordFailure(): void {
this.onFailure();
}
}

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/**
* A binary heap implementation for efficient priority queue operations
* Supports O(log n) insert and extract operations
*/
export class BinaryHeap<T> {
private heap: T[] = [];
private keyMap?: Map<string, number>; // For efficient key-based lookups
constructor(
private compareFn: (a: T, b: T) => number,
private extractKey?: (item: T) => string
) {
if (extractKey) {
this.keyMap = new Map();
}
}
/**
* Get the current size of the heap
*/
public get size(): number {
return this.heap.length;
}
/**
* Check if the heap is empty
*/
public isEmpty(): boolean {
return this.heap.length === 0;
}
/**
* Peek at the top element without removing it
*/
public peek(): T | undefined {
return this.heap[0];
}
/**
* Insert a new item into the heap
* O(log n) time complexity
*/
public insert(item: T): void {
const index = this.heap.length;
this.heap.push(item);
if (this.keyMap && this.extractKey) {
const key = this.extractKey(item);
this.keyMap.set(key, index);
}
this.bubbleUp(index);
}
/**
* Extract the top element from the heap
* O(log n) time complexity
*/
public extract(): T | undefined {
if (this.heap.length === 0) return undefined;
if (this.heap.length === 1) {
const item = this.heap.pop()!;
if (this.keyMap && this.extractKey) {
this.keyMap.delete(this.extractKey(item));
}
return item;
}
const result = this.heap[0];
const lastItem = this.heap.pop()!;
this.heap[0] = lastItem;
if (this.keyMap && this.extractKey) {
this.keyMap.delete(this.extractKey(result));
this.keyMap.set(this.extractKey(lastItem), 0);
}
this.bubbleDown(0);
return result;
}
/**
* Extract an element that matches the predicate
* O(n) time complexity for search, O(log n) for extraction
*/
public extractIf(predicate: (item: T) => boolean): T | undefined {
const index = this.heap.findIndex(predicate);
if (index === -1) return undefined;
return this.extractAt(index);
}
/**
* Extract an element by its key (if extractKey was provided)
* O(log n) time complexity
*/
public extractByKey(key: string): T | undefined {
if (!this.keyMap || !this.extractKey) {
throw new Error('extractKey function must be provided to use key-based extraction');
}
const index = this.keyMap.get(key);
if (index === undefined) return undefined;
return this.extractAt(index);
}
/**
* Check if a key exists in the heap
* O(1) time complexity
*/
public hasKey(key: string): boolean {
if (!this.keyMap) return false;
return this.keyMap.has(key);
}
/**
* Get all elements as an array (does not modify heap)
* O(n) time complexity
*/
public toArray(): T[] {
return [...this.heap];
}
/**
* Clear the heap
*/
public clear(): void {
this.heap = [];
if (this.keyMap) {
this.keyMap.clear();
}
}
/**
* Extract element at specific index
*/
private extractAt(index: number): T {
const item = this.heap[index];
if (this.keyMap && this.extractKey) {
this.keyMap.delete(this.extractKey(item));
}
if (index === this.heap.length - 1) {
this.heap.pop();
return item;
}
const lastItem = this.heap.pop()!;
this.heap[index] = lastItem;
if (this.keyMap && this.extractKey) {
this.keyMap.set(this.extractKey(lastItem), index);
}
// Try bubbling up first
const parentIndex = Math.floor((index - 1) / 2);
if (parentIndex >= 0 && this.compareFn(this.heap[index], this.heap[parentIndex]) < 0) {
this.bubbleUp(index);
} else {
this.bubbleDown(index);
}
return item;
}
/**
* Bubble up element at given index to maintain heap property
*/
private bubbleUp(index: number): void {
while (index > 0) {
const parentIndex = Math.floor((index - 1) / 2);
if (this.compareFn(this.heap[index], this.heap[parentIndex]) >= 0) {
break;
}
this.swap(index, parentIndex);
index = parentIndex;
}
}
/**
* Bubble down element at given index to maintain heap property
*/
private bubbleDown(index: number): void {
const length = this.heap.length;
while (true) {
const leftChild = 2 * index + 1;
const rightChild = 2 * index + 2;
let smallest = index;
if (leftChild < length &&
this.compareFn(this.heap[leftChild], this.heap[smallest]) < 0) {
smallest = leftChild;
}
if (rightChild < length &&
this.compareFn(this.heap[rightChild], this.heap[smallest]) < 0) {
smallest = rightChild;
}
if (smallest === index) break;
this.swap(index, smallest);
index = smallest;
}
}
/**
* Swap two elements in the heap
*/
private swap(i: number, j: number): void {
const temp = this.heap[i];
this.heap[i] = this.heap[j];
this.heap[j] = temp;
if (this.keyMap && this.extractKey) {
this.keyMap.set(this.extractKey(this.heap[i]), i);
this.keyMap.set(this.extractKey(this.heap[j]), j);
}
}
}

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import { LifecycleComponent } from './lifecycle-component.js';
import { BinaryHeap } from './binary-heap.js';
import { AsyncMutex } from './async-utils.js';
import { EventEmitter } from 'events';
/**
* Interface for pooled connection
*/
export interface IPooledConnection<T> {
id: string;
connection: T;
createdAt: number;
lastUsedAt: number;
useCount: number;
inUse: boolean;
metadata?: any;
}
/**
* Configuration options for the connection pool
*/
export interface IConnectionPoolOptions<T> {
minSize?: number;
maxSize?: number;
acquireTimeout?: number;
idleTimeout?: number;
maxUseCount?: number;
validateOnAcquire?: boolean;
validateOnReturn?: boolean;
queueTimeout?: number;
connectionFactory: () => Promise<T>;
connectionValidator?: (connection: T) => Promise<boolean>;
connectionDestroyer?: (connection: T) => Promise<void>;
onConnectionError?: (error: Error, connection?: T) => void;
}
/**
* Interface for queued acquire request
*/
interface IAcquireRequest<T> {
id: string;
priority: number;
timestamp: number;
resolve: (connection: IPooledConnection<T>) => void;
reject: (error: Error) => void;
timeoutHandle?: NodeJS.Timeout;
}
/**
* Enhanced connection pool with priority queue, backpressure, and lifecycle management
*/
export class EnhancedConnectionPool<T> extends LifecycleComponent {
private readonly options: Required<Omit<IConnectionPoolOptions<T>, 'connectionValidator' | 'connectionDestroyer' | 'onConnectionError'>> & Pick<IConnectionPoolOptions<T>, 'connectionValidator' | 'connectionDestroyer' | 'onConnectionError'>;
private readonly availableConnections: IPooledConnection<T>[] = [];
private readonly activeConnections: Map<string, IPooledConnection<T>> = new Map();
private readonly waitQueue: BinaryHeap<IAcquireRequest<T>>;
private readonly mutex = new AsyncMutex();
private readonly eventEmitter = new EventEmitter();
private connectionIdCounter = 0;
private requestIdCounter = 0;
private isClosing = false;
// Metrics
private metrics = {
connectionsCreated: 0,
connectionsDestroyed: 0,
connectionsAcquired: 0,
connectionsReleased: 0,
acquireTimeouts: 0,
validationFailures: 0,
queueHighWaterMark: 0,
};
constructor(options: IConnectionPoolOptions<T>) {
super();
this.options = {
minSize: 0,
maxSize: 10,
acquireTimeout: 30000,
idleTimeout: 300000, // 5 minutes
maxUseCount: Infinity,
validateOnAcquire: true,
validateOnReturn: false,
queueTimeout: 60000,
...options,
};
// Initialize priority queue (higher priority = extracted first)
this.waitQueue = new BinaryHeap<IAcquireRequest<T>>(
(a, b) => b.priority - a.priority || a.timestamp - b.timestamp,
(item) => item.id
);
// Start maintenance cycle
this.startMaintenance();
// Initialize minimum connections
this.initializeMinConnections();
}
/**
* Initialize minimum number of connections
*/
private async initializeMinConnections(): Promise<void> {
const promises: Promise<void>[] = [];
for (let i = 0; i < this.options.minSize; i++) {
promises.push(
this.createConnection()
.then(conn => {
this.availableConnections.push(conn);
})
.catch(err => {
if (this.options.onConnectionError) {
this.options.onConnectionError(err);
}
})
);
}
await Promise.all(promises);
}
/**
* Start maintenance timer for idle connection cleanup
*/
private startMaintenance(): void {
this.setInterval(() => {
this.performMaintenance();
}, 30000); // Every 30 seconds
}
/**
* Perform maintenance tasks
*/
private async performMaintenance(): Promise<void> {
await this.mutex.runExclusive(async () => {
const now = Date.now();
const toRemove: IPooledConnection<T>[] = [];
// Check for idle connections beyond minimum size
for (let i = this.availableConnections.length - 1; i >= 0; i--) {
const conn = this.availableConnections[i];
// Keep minimum connections
if (this.availableConnections.length <= this.options.minSize) {
break;
}
// Remove idle connections
if (now - conn.lastUsedAt > this.options.idleTimeout) {
toRemove.push(conn);
this.availableConnections.splice(i, 1);
}
}
// Destroy idle connections
for (const conn of toRemove) {
await this.destroyConnection(conn);
}
});
}
/**
* Acquire a connection from the pool
*/
public async acquire(priority: number = 0, timeout?: number): Promise<IPooledConnection<T>> {
if (this.isClosing) {
throw new Error('Connection pool is closing');
}
return this.mutex.runExclusive(async () => {
// Try to get an available connection
const connection = await this.tryAcquireConnection();
if (connection) {
return connection;
}
// Check if we can create a new connection
const totalConnections = this.availableConnections.length + this.activeConnections.size;
if (totalConnections < this.options.maxSize) {
try {
const newConnection = await this.createConnection();
return this.checkoutConnection(newConnection);
} catch (err) {
// Fall through to queue if creation fails
}
}
// Add to wait queue
return this.queueAcquireRequest(priority, timeout);
});
}
/**
* Try to acquire an available connection
*/
private async tryAcquireConnection(): Promise<IPooledConnection<T> | null> {
while (this.availableConnections.length > 0) {
const connection = this.availableConnections.shift()!;
// Check if connection exceeded max use count
if (connection.useCount >= this.options.maxUseCount) {
await this.destroyConnection(connection);
continue;
}
// Validate connection if required
if (this.options.validateOnAcquire && this.options.connectionValidator) {
try {
const isValid = await this.options.connectionValidator(connection.connection);
if (!isValid) {
this.metrics.validationFailures++;
await this.destroyConnection(connection);
continue;
}
} catch (err) {
this.metrics.validationFailures++;
await this.destroyConnection(connection);
continue;
}
}
return this.checkoutConnection(connection);
}
return null;
}
/**
* Checkout a connection for use
*/
private checkoutConnection(connection: IPooledConnection<T>): IPooledConnection<T> {
connection.inUse = true;
connection.lastUsedAt = Date.now();
connection.useCount++;
this.activeConnections.set(connection.id, connection);
this.metrics.connectionsAcquired++;
this.eventEmitter.emit('acquire', connection);
return connection;
}
/**
* Queue an acquire request
*/
private queueAcquireRequest(priority: number, timeout?: number): Promise<IPooledConnection<T>> {
return new Promise<IPooledConnection<T>>((resolve, reject) => {
const request: IAcquireRequest<T> = {
id: `req-${this.requestIdCounter++}`,
priority,
timestamp: Date.now(),
resolve,
reject,
};
// Set timeout
const timeoutMs = timeout || this.options.queueTimeout;
request.timeoutHandle = this.setTimeout(() => {
if (this.waitQueue.extractByKey(request.id)) {
this.metrics.acquireTimeouts++;
reject(new Error(`Connection acquire timeout after ${timeoutMs}ms`));
}
}, timeoutMs);
this.waitQueue.insert(request);
this.metrics.queueHighWaterMark = Math.max(
this.metrics.queueHighWaterMark,
this.waitQueue.size
);
this.eventEmitter.emit('enqueue', { queueSize: this.waitQueue.size });
});
}
/**
* Release a connection back to the pool
*/
public async release(connection: IPooledConnection<T>): Promise<void> {
return this.mutex.runExclusive(async () => {
if (!connection.inUse || !this.activeConnections.has(connection.id)) {
throw new Error('Connection is not active');
}
this.activeConnections.delete(connection.id);
connection.inUse = false;
connection.lastUsedAt = Date.now();
this.metrics.connectionsReleased++;
// Check if connection should be destroyed
if (connection.useCount >= this.options.maxUseCount) {
await this.destroyConnection(connection);
return;
}
// Validate on return if required
if (this.options.validateOnReturn && this.options.connectionValidator) {
try {
const isValid = await this.options.connectionValidator(connection.connection);
if (!isValid) {
await this.destroyConnection(connection);
return;
}
} catch (err) {
await this.destroyConnection(connection);
return;
}
}
// Check if there are waiting requests
const request = this.waitQueue.extract();
if (request) {
this.clearTimeout(request.timeoutHandle!);
request.resolve(this.checkoutConnection(connection));
this.eventEmitter.emit('dequeue', { queueSize: this.waitQueue.size });
} else {
// Return to available pool
this.availableConnections.push(connection);
this.eventEmitter.emit('release', connection);
}
});
}
/**
* Create a new connection
*/
private async createConnection(): Promise<IPooledConnection<T>> {
const rawConnection = await this.options.connectionFactory();
const connection: IPooledConnection<T> = {
id: `conn-${this.connectionIdCounter++}`,
connection: rawConnection,
createdAt: Date.now(),
lastUsedAt: Date.now(),
useCount: 0,
inUse: false,
};
this.metrics.connectionsCreated++;
this.eventEmitter.emit('create', connection);
return connection;
}
/**
* Destroy a connection
*/
private async destroyConnection(connection: IPooledConnection<T>): Promise<void> {
try {
if (this.options.connectionDestroyer) {
await this.options.connectionDestroyer(connection.connection);
}
this.metrics.connectionsDestroyed++;
this.eventEmitter.emit('destroy', connection);
} catch (err) {
if (this.options.onConnectionError) {
this.options.onConnectionError(err as Error, connection.connection);
}
}
}
/**
* Get current pool statistics
*/
public getStats() {
return {
available: this.availableConnections.length,
active: this.activeConnections.size,
waiting: this.waitQueue.size,
total: this.availableConnections.length + this.activeConnections.size,
...this.metrics,
};
}
/**
* Subscribe to pool events
*/
public on(event: string, listener: Function): void {
this.addEventListener(this.eventEmitter, event, listener);
}
/**
* Close the pool and cleanup resources
*/
protected async onCleanup(): Promise<void> {
this.isClosing = true;
// Clear the wait queue
while (!this.waitQueue.isEmpty()) {
const request = this.waitQueue.extract();
if (request) {
this.clearTimeout(request.timeoutHandle!);
request.reject(new Error('Connection pool is closing'));
}
}
// Wait for active connections to be released (with timeout)
const timeout = 30000;
const startTime = Date.now();
while (this.activeConnections.size > 0 && Date.now() - startTime < timeout) {
await new Promise(resolve => {
const timer = setTimeout(resolve, 100);
if (typeof timer.unref === 'function') {
timer.unref();
}
});
}
// Destroy all connections
const allConnections = [
...this.availableConnections,
...this.activeConnections.values(),
];
await Promise.all(allConnections.map(conn => this.destroyConnection(conn)));
this.availableConnections.length = 0;
this.activeConnections.clear();
}
}

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@ -1,376 +0,0 @@
import * as plugins from '../../plugins.js';
import type {
ICertificateData,
ICertificateFailure,
ICertificateExpiring
} from '../models/common-types.js';
import type { IRouteConfig } from '../../proxies/smart-proxy/models/route-types.js';
import { Port80HandlerEvents } from '../models/common-types.js';
/**
* Standardized event names used throughout the system
*/
export enum ProxyEvents {
// Certificate events
CERTIFICATE_ISSUED = 'certificate:issued',
CERTIFICATE_RENEWED = 'certificate:renewed',
CERTIFICATE_FAILED = 'certificate:failed',
CERTIFICATE_EXPIRING = 'certificate:expiring',
// Component lifecycle events
COMPONENT_STARTED = 'component:started',
COMPONENT_STOPPED = 'component:stopped',
// Connection events
CONNECTION_ESTABLISHED = 'connection:established',
CONNECTION_CLOSED = 'connection:closed',
CONNECTION_ERROR = 'connection:error',
// Request events
REQUEST_RECEIVED = 'request:received',
REQUEST_COMPLETED = 'request:completed',
REQUEST_ERROR = 'request:error',
// Route events
ROUTE_MATCHED = 'route:matched',
ROUTE_UPDATED = 'route:updated',
ROUTE_ERROR = 'route:error',
// Security events
SECURITY_BLOCKED = 'security:blocked',
SECURITY_BREACH_ATTEMPT = 'security:breach-attempt',
// TLS events
TLS_HANDSHAKE_STARTED = 'tls:handshake-started',
TLS_HANDSHAKE_COMPLETED = 'tls:handshake-completed',
TLS_HANDSHAKE_FAILED = 'tls:handshake-failed'
}
/**
* Component types for event metadata
*/
export enum ComponentType {
SMART_PROXY = 'smart-proxy',
NETWORK_PROXY = 'network-proxy',
NFTABLES_PROXY = 'nftables-proxy',
PORT80_HANDLER = 'port80-handler',
CERTIFICATE_MANAGER = 'certificate-manager',
ROUTE_MANAGER = 'route-manager',
CONNECTION_MANAGER = 'connection-manager',
TLS_MANAGER = 'tls-manager',
SECURITY_MANAGER = 'security-manager'
}
/**
* Base event data interface
*/
export interface IEventData {
timestamp: number;
componentType: ComponentType;
componentId?: string;
}
/**
* Certificate event data
*/
export interface ICertificateEventData extends IEventData, ICertificateData {
isRenewal?: boolean;
source?: string;
}
/**
* Certificate failure event data
*/
export interface ICertificateFailureEventData extends IEventData, ICertificateFailure {}
/**
* Certificate expiring event data
*/
export interface ICertificateExpiringEventData extends IEventData, ICertificateExpiring {}
/**
* Component lifecycle event data
*/
export interface IComponentEventData extends IEventData {
name: string;
version?: string;
}
/**
* Connection event data
*/
export interface IConnectionEventData extends IEventData {
connectionId: string;
clientIp: string;
serverIp?: string;
port: number;
isTls?: boolean;
domain?: string;
}
/**
* Request event data
*/
export interface IRequestEventData extends IEventData {
connectionId: string;
requestId: string;
method?: string;
path?: string;
statusCode?: number;
duration?: number;
routeId?: string;
routeName?: string;
}
/**
* Route event data
*/
export interface IRouteEventData extends IEventData {
route: IRouteConfig;
context?: any;
}
/**
* Security event data
*/
export interface ISecurityEventData extends IEventData {
clientIp: string;
reason: string;
routeId?: string;
routeName?: string;
}
/**
* TLS event data
*/
export interface ITlsEventData extends IEventData {
connectionId: string;
domain?: string;
clientIp: string;
tlsVersion?: string;
cipherSuite?: string;
sniHostname?: string;
}
/**
* Logger interface for event system
*/
export interface IEventLogger {
info: (message: string, ...args: any[]) => void;
warn: (message: string, ...args: any[]) => void;
error: (message: string, ...args: any[]) => void;
debug?: (message: string, ...args: any[]) => void;
}
/**
* Event handler type
*/
export type EventHandler<T> = (data: T) => void;
/**
* Helper class to standardize event emission and handling
* across all system components
*/
export class EventSystem {
private emitter: plugins.EventEmitter;
private componentType: ComponentType;
private componentId: string;
private logger?: IEventLogger;
constructor(
componentType: ComponentType,
componentId: string = '',
logger?: IEventLogger
) {
this.emitter = new plugins.EventEmitter();
this.componentType = componentType;
this.componentId = componentId;
this.logger = logger;
}
/**
* Emit a certificate issued event
*/
public emitCertificateIssued(data: Omit<ICertificateEventData, 'timestamp' | 'componentType' | 'componentId'>): void {
const eventData: ICertificateEventData = {
...data,
timestamp: Date.now(),
componentType: this.componentType,
componentId: this.componentId
};
this.logger?.info?.(`Certificate issued for ${data.domain}`);
this.emitter.emit(ProxyEvents.CERTIFICATE_ISSUED, eventData);
}
/**
* Emit a certificate renewed event
*/
public emitCertificateRenewed(data: Omit<ICertificateEventData, 'timestamp' | 'componentType' | 'componentId'>): void {
const eventData: ICertificateEventData = {
...data,
timestamp: Date.now(),
componentType: this.componentType,
componentId: this.componentId
};
this.logger?.info?.(`Certificate renewed for ${data.domain}`);
this.emitter.emit(ProxyEvents.CERTIFICATE_RENEWED, eventData);
}
/**
* Emit a certificate failed event
*/
public emitCertificateFailed(data: Omit<ICertificateFailureEventData, 'timestamp' | 'componentType' | 'componentId'>): void {
const eventData: ICertificateFailureEventData = {
...data,
timestamp: Date.now(),
componentType: this.componentType,
componentId: this.componentId
};
this.logger?.error?.(`Certificate issuance failed for ${data.domain}: ${data.error}`);
this.emitter.emit(ProxyEvents.CERTIFICATE_FAILED, eventData);
}
/**
* Emit a certificate expiring event
*/
public emitCertificateExpiring(data: Omit<ICertificateExpiringEventData, 'timestamp' | 'componentType' | 'componentId'>): void {
const eventData: ICertificateExpiringEventData = {
...data,
timestamp: Date.now(),
componentType: this.componentType,
componentId: this.componentId
};
this.logger?.warn?.(`Certificate expiring for ${data.domain} in ${data.daysRemaining} days`);
this.emitter.emit(ProxyEvents.CERTIFICATE_EXPIRING, eventData);
}
/**
* Emit a component started event
*/
public emitComponentStarted(name: string, version?: string): void {
const eventData: IComponentEventData = {
name,
version,
timestamp: Date.now(),
componentType: this.componentType,
componentId: this.componentId
};
this.logger?.info?.(`Component ${name} started${version ? ` (v${version})` : ''}`);
this.emitter.emit(ProxyEvents.COMPONENT_STARTED, eventData);
}
/**
* Emit a component stopped event
*/
public emitComponentStopped(name: string): void {
const eventData: IComponentEventData = {
name,
timestamp: Date.now(),
componentType: this.componentType,
componentId: this.componentId
};
this.logger?.info?.(`Component ${name} stopped`);
this.emitter.emit(ProxyEvents.COMPONENT_STOPPED, eventData);
}
/**
* Emit a connection established event
*/
public emitConnectionEstablished(data: Omit<IConnectionEventData, 'timestamp' | 'componentType' | 'componentId'>): void {
const eventData: IConnectionEventData = {
...data,
timestamp: Date.now(),
componentType: this.componentType,
componentId: this.componentId
};
this.logger?.debug?.(`Connection ${data.connectionId} established from ${data.clientIp} on port ${data.port}`);
this.emitter.emit(ProxyEvents.CONNECTION_ESTABLISHED, eventData);
}
/**
* Emit a connection closed event
*/
public emitConnectionClosed(data: Omit<IConnectionEventData, 'timestamp' | 'componentType' | 'componentId'>): void {
const eventData: IConnectionEventData = {
...data,
timestamp: Date.now(),
componentType: this.componentType,
componentId: this.componentId
};
this.logger?.debug?.(`Connection ${data.connectionId} closed`);
this.emitter.emit(ProxyEvents.CONNECTION_CLOSED, eventData);
}
/**
* Emit a route matched event
*/
public emitRouteMatched(data: Omit<IRouteEventData, 'timestamp' | 'componentType' | 'componentId'>): void {
const eventData: IRouteEventData = {
...data,
timestamp: Date.now(),
componentType: this.componentType,
componentId: this.componentId
};
this.logger?.debug?.(`Route matched: ${data.route.name || data.route.id || 'unnamed'}`);
this.emitter.emit(ProxyEvents.ROUTE_MATCHED, eventData);
}
/**
* Subscribe to an event
*/
public on<T>(event: ProxyEvents, handler: EventHandler<T>): void {
this.emitter.on(event, handler);
}
/**
* Subscribe to an event once
*/
public once<T>(event: ProxyEvents, handler: EventHandler<T>): void {
this.emitter.once(event, handler);
}
/**
* Unsubscribe from an event
*/
public off<T>(event: ProxyEvents, handler: EventHandler<T>): void {
this.emitter.off(event, handler);
}
/**
* Map Port80Handler events to standard proxy events
*/
public subscribePort80HandlerEvents(handler: any): void {
handler.on(Port80HandlerEvents.CERTIFICATE_ISSUED, (data: ICertificateData) => {
this.emitCertificateIssued({
...data,
isRenewal: false,
source: 'port80handler'
});
});
handler.on(Port80HandlerEvents.CERTIFICATE_RENEWED, (data: ICertificateData) => {
this.emitCertificateRenewed({
...data,
isRenewal: true,
source: 'port80handler'
});
});
handler.on(Port80HandlerEvents.CERTIFICATE_FAILED, (data: ICertificateFailure) => {
this.emitCertificateFailed(data);
});
handler.on(Port80HandlerEvents.CERTIFICATE_EXPIRING, (data: ICertificateExpiring) => {
this.emitCertificateExpiring(data);
});
}
}

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@ -1,25 +0,0 @@
// Port80Handler has been removed - use SmartCertManager instead
import { Port80HandlerEvents } from '../models/common-types.js';
// Re-export for backward compatibility
export { Port80HandlerEvents };
/**
* @deprecated Use SmartCertManager instead
*/
export interface IPort80HandlerSubscribers {
onCertificateIssued?: (data: any) => void;
onCertificateRenewed?: (data: any) => void;
onCertificateFailed?: (data: any) => void;
onCertificateExpiring?: (data: any) => void;
}
/**
* @deprecated Use SmartCertManager instead
*/
export function subscribeToPort80Handler(
handler: any,
subscribers: IPort80HandlerSubscribers
): void {
console.warn('subscribeToPort80Handler is deprecated - use SmartCertManager instead');
}

270
ts/core/utils/fs-utils.ts Normal file
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@ -0,0 +1,270 @@
/**
* Async filesystem utilities for SmartProxy
* Provides non-blocking alternatives to synchronous filesystem operations
*/
import * as plugins from '../../plugins.js';
export class AsyncFileSystem {
/**
* Check if a file or directory exists
* @param path - Path to check
* @returns Promise resolving to true if exists, false otherwise
*/
static async exists(path: string): Promise<boolean> {
try {
await plugins.fs.promises.access(path);
return true;
} catch {
return false;
}
}
/**
* Ensure a directory exists, creating it if necessary
* @param dirPath - Directory path to ensure
* @returns Promise that resolves when directory is ensured
*/
static async ensureDir(dirPath: string): Promise<void> {
await plugins.fs.promises.mkdir(dirPath, { recursive: true });
}
/**
* Read a file as string
* @param filePath - Path to the file
* @param encoding - File encoding (default: utf8)
* @returns Promise resolving to file contents
*/
static async readFile(filePath: string, encoding: BufferEncoding = 'utf8'): Promise<string> {
return plugins.fs.promises.readFile(filePath, encoding);
}
/**
* Read a file as buffer
* @param filePath - Path to the file
* @returns Promise resolving to file buffer
*/
static async readFileBuffer(filePath: string): Promise<Buffer> {
return plugins.fs.promises.readFile(filePath);
}
/**
* Write string data to a file
* @param filePath - Path to the file
* @param data - String data to write
* @param encoding - File encoding (default: utf8)
* @returns Promise that resolves when file is written
*/
static async writeFile(filePath: string, data: string, encoding: BufferEncoding = 'utf8'): Promise<void> {
// Ensure directory exists
const dir = plugins.path.dirname(filePath);
await this.ensureDir(dir);
await plugins.fs.promises.writeFile(filePath, data, encoding);
}
/**
* Write buffer data to a file
* @param filePath - Path to the file
* @param data - Buffer data to write
* @returns Promise that resolves when file is written
*/
static async writeFileBuffer(filePath: string, data: Buffer): Promise<void> {
const dir = plugins.path.dirname(filePath);
await this.ensureDir(dir);
await plugins.fs.promises.writeFile(filePath, data);
}
/**
* Remove a file
* @param filePath - Path to the file
* @returns Promise that resolves when file is removed
*/
static async remove(filePath: string): Promise<void> {
try {
await plugins.fs.promises.unlink(filePath);
} catch (error: any) {
if (error.code !== 'ENOENT') {
throw error;
}
// File doesn't exist, which is fine
}
}
/**
* Remove a directory and all its contents
* @param dirPath - Path to the directory
* @returns Promise that resolves when directory is removed
*/
static async removeDir(dirPath: string): Promise<void> {
try {
await plugins.fs.promises.rm(dirPath, { recursive: true, force: true });
} catch (error: any) {
if (error.code !== 'ENOENT') {
throw error;
}
}
}
/**
* Read JSON from a file
* @param filePath - Path to the JSON file
* @returns Promise resolving to parsed JSON
*/
static async readJSON<T = any>(filePath: string): Promise<T> {
const content = await this.readFile(filePath);
return JSON.parse(content);
}
/**
* Write JSON to a file
* @param filePath - Path to the file
* @param data - Data to write as JSON
* @param pretty - Whether to pretty-print JSON (default: true)
* @returns Promise that resolves when file is written
*/
static async writeJSON(filePath: string, data: any, pretty = true): Promise<void> {
const jsonString = pretty ? JSON.stringify(data, null, 2) : JSON.stringify(data);
await this.writeFile(filePath, jsonString);
}
/**
* Copy a file from source to destination
* @param source - Source file path
* @param destination - Destination file path
* @returns Promise that resolves when file is copied
*/
static async copyFile(source: string, destination: string): Promise<void> {
const destDir = plugins.path.dirname(destination);
await this.ensureDir(destDir);
await plugins.fs.promises.copyFile(source, destination);
}
/**
* Move/rename a file
* @param source - Source file path
* @param destination - Destination file path
* @returns Promise that resolves when file is moved
*/
static async moveFile(source: string, destination: string): Promise<void> {
const destDir = plugins.path.dirname(destination);
await this.ensureDir(destDir);
await plugins.fs.promises.rename(source, destination);
}
/**
* Get file stats
* @param filePath - Path to the file
* @returns Promise resolving to file stats or null if doesn't exist
*/
static async getStats(filePath: string): Promise<plugins.fs.Stats | null> {
try {
return await plugins.fs.promises.stat(filePath);
} catch (error: any) {
if (error.code === 'ENOENT') {
return null;
}
throw error;
}
}
/**
* List files in a directory
* @param dirPath - Directory path
* @returns Promise resolving to array of filenames
*/
static async listFiles(dirPath: string): Promise<string[]> {
try {
return await plugins.fs.promises.readdir(dirPath);
} catch (error: any) {
if (error.code === 'ENOENT') {
return [];
}
throw error;
}
}
/**
* List files in a directory with full paths
* @param dirPath - Directory path
* @returns Promise resolving to array of full file paths
*/
static async listFilesFullPath(dirPath: string): Promise<string[]> {
const files = await this.listFiles(dirPath);
return files.map(file => plugins.path.join(dirPath, file));
}
/**
* Recursively list all files in a directory
* @param dirPath - Directory path
* @param fileList - Accumulator for file list (used internally)
* @returns Promise resolving to array of all file paths
*/
static async listFilesRecursive(dirPath: string, fileList: string[] = []): Promise<string[]> {
const files = await this.listFiles(dirPath);
for (const file of files) {
const filePath = plugins.path.join(dirPath, file);
const stats = await this.getStats(filePath);
if (stats?.isDirectory()) {
await this.listFilesRecursive(filePath, fileList);
} else if (stats?.isFile()) {
fileList.push(filePath);
}
}
return fileList;
}
/**
* Create a read stream for a file
* @param filePath - Path to the file
* @param options - Stream options
* @returns Read stream
*/
static createReadStream(filePath: string, options?: Parameters<typeof plugins.fs.createReadStream>[1]): plugins.fs.ReadStream {
return plugins.fs.createReadStream(filePath, options);
}
/**
* Create a write stream for a file
* @param filePath - Path to the file
* @param options - Stream options
* @returns Write stream
*/
static createWriteStream(filePath: string, options?: Parameters<typeof plugins.fs.createWriteStream>[1]): plugins.fs.WriteStream {
return plugins.fs.createWriteStream(filePath, options);
}
/**
* Ensure a file exists, creating an empty file if necessary
* @param filePath - Path to the file
* @returns Promise that resolves when file is ensured
*/
static async ensureFile(filePath: string): Promise<void> {
const exists = await this.exists(filePath);
if (!exists) {
await this.writeFile(filePath, '');
}
}
/**
* Check if a path is a directory
* @param path - Path to check
* @returns Promise resolving to true if directory, false otherwise
*/
static async isDirectory(path: string): Promise<boolean> {
const stats = await this.getStats(path);
return stats?.isDirectory() ?? false;
}
/**
* Check if a path is a file
* @param path - Path to check
* @returns Promise resolving to true if file, false otherwise
*/
static async isFile(path: string): Promise<boolean> {
const stats = await this.getStats(path);
return stats?.isFile() ?? false;
}
}

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@ -2,14 +2,17 @@
* Core utility functions
*/
export * from './event-utils.js';
export * from './validation-utils.js';
export * from './ip-utils.js';
export * from './template-utils.js';
export * from './route-manager.js';
export * from './route-utils.js';
export * from './security-utils.js';
export * from './shared-security-manager.js';
export * from './event-system.js';
export * from './websocket-utils.js';
export * from './logger.js';
export * from './async-utils.js';
export * from './fs-utils.js';
export * from './lifecycle-component.js';
export * from './binary-heap.js';
export * from './enhanced-connection-pool.js';
export * from './socket-utils.js';
export * from './proxy-protocol.js';

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@ -0,0 +1,251 @@
/**
* Base class for components that need proper resource lifecycle management
* Provides automatic cleanup of timers and event listeners to prevent memory leaks
*/
export abstract class LifecycleComponent {
private timers: Set<NodeJS.Timeout> = new Set();
private intervals: Set<NodeJS.Timeout> = new Set();
private listeners: Array<{
target: any;
event: string;
handler: Function;
actualHandler?: Function; // The actual handler registered (may be wrapped)
once?: boolean;
}> = [];
private childComponents: Set<LifecycleComponent> = new Set();
protected isShuttingDown = false;
private cleanupPromise?: Promise<void>;
/**
* Create a managed setTimeout that will be automatically cleaned up
*/
protected setTimeout(handler: Function, timeout: number): NodeJS.Timeout {
if (this.isShuttingDown) {
// Return a dummy timer if shutting down
const dummyTimer = setTimeout(() => {}, 0);
if (typeof dummyTimer.unref === 'function') {
dummyTimer.unref();
}
return dummyTimer;
}
const wrappedHandler = () => {
this.timers.delete(timer);
if (!this.isShuttingDown) {
handler();
}
};
const timer = setTimeout(wrappedHandler, timeout);
this.timers.add(timer);
// Allow process to exit even with timer
if (typeof timer.unref === 'function') {
timer.unref();
}
return timer;
}
/**
* Create a managed setInterval that will be automatically cleaned up
*/
protected setInterval(handler: Function, interval: number): NodeJS.Timeout {
if (this.isShuttingDown) {
// Return a dummy timer if shutting down
const dummyTimer = setInterval(() => {}, interval);
if (typeof dummyTimer.unref === 'function') {
dummyTimer.unref();
}
clearInterval(dummyTimer); // Clear immediately since we don't need it
return dummyTimer;
}
const wrappedHandler = () => {
if (!this.isShuttingDown) {
handler();
}
};
const timer = setInterval(wrappedHandler, interval);
this.intervals.add(timer);
// Allow process to exit even with timer
if (typeof timer.unref === 'function') {
timer.unref();
}
return timer;
}
/**
* Clear a managed timeout
*/
protected clearTimeout(timer: NodeJS.Timeout): void {
clearTimeout(timer);
this.timers.delete(timer);
}
/**
* Clear a managed interval
*/
protected clearInterval(timer: NodeJS.Timeout): void {
clearInterval(timer);
this.intervals.delete(timer);
}
/**
* Add a managed event listener that will be automatically removed on cleanup
*/
protected addEventListener(
target: any,
event: string,
handler: Function,
options?: { once?: boolean }
): void {
if (this.isShuttingDown) {
return;
}
// For 'once' listeners, we need to wrap the handler to remove it from our tracking
let actualHandler = handler;
if (options?.once) {
actualHandler = (...args: any[]) => {
// Call the original handler
handler(...args);
// Remove from our internal tracking
const index = this.listeners.findIndex(
l => l.target === target && l.event === event && l.handler === handler
);
if (index !== -1) {
this.listeners.splice(index, 1);
}
};
}
// Support both EventEmitter and DOM-style event targets
if (typeof target.on === 'function') {
if (options?.once) {
target.once(event, actualHandler);
} else {
target.on(event, actualHandler);
}
} else if (typeof target.addEventListener === 'function') {
target.addEventListener(event, actualHandler, options);
} else {
throw new Error('Target must support on() or addEventListener()');
}
// Store both the original handler and the actual handler registered
this.listeners.push({
target,
event,
handler,
actualHandler, // The handler that was actually registered (may be wrapped)
once: options?.once
});
}
/**
* Remove a specific event listener
*/
protected removeEventListener(target: any, event: string, handler: Function): void {
// Remove from target
if (typeof target.removeListener === 'function') {
target.removeListener(event, handler);
} else if (typeof target.removeEventListener === 'function') {
target.removeEventListener(event, handler);
}
// Remove from our tracking
const index = this.listeners.findIndex(
l => l.target === target && l.event === event && l.handler === handler
);
if (index !== -1) {
this.listeners.splice(index, 1);
}
}
/**
* Register a child component that should be cleaned up when this component is cleaned up
*/
protected registerChildComponent(component: LifecycleComponent): void {
this.childComponents.add(component);
}
/**
* Unregister a child component
*/
protected unregisterChildComponent(component: LifecycleComponent): void {
this.childComponents.delete(component);
}
/**
* Override this method to implement component-specific cleanup logic
*/
protected async onCleanup(): Promise<void> {
// Override in subclasses
}
/**
* Clean up all managed resources
*/
public async cleanup(): Promise<void> {
// Return existing cleanup promise if already cleaning up
if (this.cleanupPromise) {
return this.cleanupPromise;
}
this.cleanupPromise = this.performCleanup();
return this.cleanupPromise;
}
private async performCleanup(): Promise<void> {
this.isShuttingDown = true;
// First, clean up child components
const childCleanupPromises: Promise<void>[] = [];
for (const child of this.childComponents) {
childCleanupPromises.push(child.cleanup());
}
await Promise.all(childCleanupPromises);
this.childComponents.clear();
// Clear all timers
for (const timer of this.timers) {
clearTimeout(timer);
}
this.timers.clear();
// Clear all intervals
for (const timer of this.intervals) {
clearInterval(timer);
}
this.intervals.clear();
// Remove all event listeners
for (const { target, event, handler, actualHandler } of this.listeners) {
// Use actualHandler if available (for wrapped handlers), otherwise use the original handler
const handlerToRemove = actualHandler || handler;
// All listeners need to be removed, including 'once' listeners that might not have fired
if (typeof target.removeListener === 'function') {
target.removeListener(event, handlerToRemove);
} else if (typeof target.removeEventListener === 'function') {
target.removeEventListener(event, handlerToRemove);
}
}
this.listeners = [];
// Call subclass cleanup
await this.onCleanup();
}
/**
* Check if the component is shutting down
*/
protected isShuttingDownState(): boolean {
return this.isShuttingDown;
}
}

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@ -0,0 +1,246 @@
import * as plugins from '../../plugins.js';
import { logger } from './logger.js';
/**
* Interface representing parsed PROXY protocol information
*/
export interface IProxyInfo {
protocol: 'TCP4' | 'TCP6' | 'UNKNOWN';
sourceIP: string;
sourcePort: number;
destinationIP: string;
destinationPort: number;
}
/**
* Interface for parse result including remaining data
*/
export interface IProxyParseResult {
proxyInfo: IProxyInfo | null;
remainingData: Buffer;
}
/**
* Parser for PROXY protocol v1 (text format)
* Spec: https://www.haproxy.org/download/1.8/doc/proxy-protocol.txt
*/
export class ProxyProtocolParser {
static readonly PROXY_V1_SIGNATURE = 'PROXY ';
static readonly MAX_HEADER_LENGTH = 107; // Max length for v1 header
static readonly HEADER_TERMINATOR = '\r\n';
/**
* Parse PROXY protocol v1 header from buffer
* Returns proxy info and remaining data after header
*/
static parse(data: Buffer): IProxyParseResult {
// Check if buffer starts with PROXY signature
if (!data.toString('ascii', 0, 6).startsWith(this.PROXY_V1_SIGNATURE)) {
return {
proxyInfo: null,
remainingData: data
};
}
// Find header terminator
const headerEndIndex = data.indexOf(this.HEADER_TERMINATOR);
if (headerEndIndex === -1) {
// Header incomplete, need more data
if (data.length > this.MAX_HEADER_LENGTH) {
// Header too long, invalid
throw new Error('PROXY protocol header exceeds maximum length');
}
return {
proxyInfo: null,
remainingData: data
};
}
// Extract header line
const headerLine = data.toString('ascii', 0, headerEndIndex);
const remainingData = data.slice(headerEndIndex + 2); // Skip \r\n
// Parse header
const parts = headerLine.split(' ');
if (parts.length < 2) {
throw new Error(`Invalid PROXY protocol header format: ${headerLine}`);
}
const [signature, protocol] = parts;
// Validate protocol
if (!['TCP4', 'TCP6', 'UNKNOWN'].includes(protocol)) {
throw new Error(`Invalid PROXY protocol: ${protocol}`);
}
// For UNKNOWN protocol, ignore addresses
if (protocol === 'UNKNOWN') {
return {
proxyInfo: {
protocol: 'UNKNOWN',
sourceIP: '',
sourcePort: 0,
destinationIP: '',
destinationPort: 0
},
remainingData
};
}
// For TCP4/TCP6, we need all 6 parts
if (parts.length !== 6) {
throw new Error(`Invalid PROXY protocol header format: ${headerLine}`);
}
const [, , srcIP, dstIP, srcPort, dstPort] = parts;
// Validate and parse ports
const sourcePort = parseInt(srcPort, 10);
const destinationPort = parseInt(dstPort, 10);
if (isNaN(sourcePort) || sourcePort < 0 || sourcePort > 65535) {
throw new Error(`Invalid source port: ${srcPort}`);
}
if (isNaN(destinationPort) || destinationPort < 0 || destinationPort > 65535) {
throw new Error(`Invalid destination port: ${dstPort}`);
}
// Validate IP addresses
const protocolType = protocol as 'TCP4' | 'TCP6' | 'UNKNOWN';
if (!this.isValidIP(srcIP, protocolType)) {
throw new Error(`Invalid source IP for ${protocol}: ${srcIP}`);
}
if (!this.isValidIP(dstIP, protocolType)) {
throw new Error(`Invalid destination IP for ${protocol}: ${dstIP}`);
}
return {
proxyInfo: {
protocol: protocol as 'TCP4' | 'TCP6',
sourceIP: srcIP,
sourcePort,
destinationIP: dstIP,
destinationPort
},
remainingData
};
}
/**
* Generate PROXY protocol v1 header
*/
static generate(info: IProxyInfo): Buffer {
if (info.protocol === 'UNKNOWN') {
return Buffer.from(`PROXY UNKNOWN\r\n`, 'ascii');
}
const header = `PROXY ${info.protocol} ${info.sourceIP} ${info.destinationIP} ${info.sourcePort} ${info.destinationPort}\r\n`;
if (header.length > this.MAX_HEADER_LENGTH) {
throw new Error('Generated PROXY protocol header exceeds maximum length');
}
return Buffer.from(header, 'ascii');
}
/**
* Validate IP address format
*/
private static isValidIP(ip: string, protocol: 'TCP4' | 'TCP6' | 'UNKNOWN'): boolean {
if (protocol === 'TCP4') {
return plugins.net.isIPv4(ip);
} else if (protocol === 'TCP6') {
return plugins.net.isIPv6(ip);
}
return false;
}
/**
* Attempt to read a complete PROXY protocol header from a socket
* Returns null if no PROXY protocol detected or incomplete
*/
static async readFromSocket(socket: plugins.net.Socket, timeout: number = 5000): Promise<IProxyParseResult | null> {
return new Promise((resolve) => {
let buffer = Buffer.alloc(0);
let resolved = false;
const cleanup = () => {
socket.removeListener('data', onData);
socket.removeListener('error', onError);
clearTimeout(timer);
};
const timer = setTimeout(() => {
if (!resolved) {
resolved = true;
cleanup();
resolve({
proxyInfo: null,
remainingData: buffer
});
}
}, timeout);
const onData = (chunk: Buffer) => {
buffer = Buffer.concat([buffer, chunk]);
// Check if we have enough data
if (!buffer.toString('ascii', 0, Math.min(6, buffer.length)).startsWith(this.PROXY_V1_SIGNATURE)) {
// Not PROXY protocol
resolved = true;
cleanup();
resolve({
proxyInfo: null,
remainingData: buffer
});
return;
}
// Try to parse
try {
const result = this.parse(buffer);
if (result.proxyInfo) {
// Successfully parsed
resolved = true;
cleanup();
resolve(result);
} else if (buffer.length > this.MAX_HEADER_LENGTH) {
// Header too long
resolved = true;
cleanup();
resolve({
proxyInfo: null,
remainingData: buffer
});
}
// Otherwise continue reading
} catch (error) {
// Parse error
logger.log('error', `PROXY protocol parse error: ${error.message}`);
resolved = true;
cleanup();
resolve({
proxyInfo: null,
remainingData: buffer
});
}
};
const onError = (error: Error) => {
logger.log('error', `Socket error while reading PROXY protocol: ${error.message}`);
resolved = true;
cleanup();
resolve({
proxyInfo: null,
remainingData: buffer
});
};
socket.on('data', onData);
socket.on('error', onError);
});
}
}

View File

@ -1,312 +0,0 @@
/**
* Route matching utilities for SmartProxy components
*
* Contains shared logic for domain matching, path matching, and IP matching
* to be used by different proxy components throughout the system.
*/
/**
* Match a domain pattern against a domain
*
* @param pattern Domain pattern with optional wildcards (e.g., "*.example.com")
* @param domain Domain to match against the pattern
* @returns Whether the domain matches the pattern
*/
export function matchDomain(pattern: string, domain: string): boolean {
// Handle exact match (case-insensitive)
if (pattern.toLowerCase() === domain.toLowerCase()) {
return true;
}
// Handle wildcard pattern
if (pattern.includes('*')) {
const regexPattern = pattern
.replace(/\./g, '\\.') // Escape dots
.replace(/\*/g, '.*'); // Convert * to .*
const regex = new RegExp(`^${regexPattern}$`, 'i');
return regex.test(domain);
}
return false;
}
/**
* Match domains from a route against a given domain
*
* @param domains Array or single domain pattern to match against
* @param domain Domain to match
* @returns Whether the domain matches any of the patterns
*/
export function matchRouteDomain(domains: string | string[] | undefined, domain: string | undefined): boolean {
// If no domains specified in the route, match all domains
if (!domains) {
return true;
}
// If no domain in the request, can't match domain-specific routes
if (!domain) {
return false;
}
const patterns = Array.isArray(domains) ? domains : [domains];
return patterns.some(pattern => matchDomain(pattern, domain));
}
/**
* Match a path pattern against a path
*
* @param pattern Path pattern with optional wildcards
* @param path Path to match against the pattern
* @returns Whether the path matches the pattern
*/
export function matchPath(pattern: string, path: string): boolean {
// Handle exact match
if (pattern === path) {
return true;
}
// Handle simple wildcard at the end (like /api/*)
if (pattern.endsWith('*')) {
const prefix = pattern.slice(0, -1);
return path.startsWith(prefix);
}
// Handle more complex wildcard patterns
if (pattern.includes('*')) {
const regexPattern = pattern
.replace(/\./g, '\\.') // Escape dots
.replace(/\*/g, '.*') // Convert * to .*
.replace(/\//g, '\\/'); // Escape slashes
const regex = new RegExp(`^${regexPattern}$`);
return regex.test(path);
}
return false;
}
/**
* Parse CIDR notation into subnet and mask bits
*
* @param cidr CIDR string (e.g., "192.168.1.0/24")
* @returns Object with subnet and bits, or null if invalid
*/
export function parseCidr(cidr: string): { subnet: string; bits: number } | null {
try {
const [subnet, bitsStr] = cidr.split('/');
const bits = parseInt(bitsStr, 10);
if (isNaN(bits) || bits < 0 || bits > 32) {
return null;
}
return { subnet, bits };
} catch (e) {
return null;
}
}
/**
* Convert an IP address to a numeric value
*
* @param ip IPv4 address string (e.g., "192.168.1.1")
* @returns Numeric representation of the IP
*/
export function ipToNumber(ip: string): number {
// Handle IPv6-mapped IPv4 addresses (::ffff:192.168.1.1)
if (ip.startsWith('::ffff:')) {
ip = ip.slice(7);
}
const parts = ip.split('.').map(part => parseInt(part, 10));
return (parts[0] << 24) | (parts[1] << 16) | (parts[2] << 8) | parts[3];
}
/**
* Match an IP against a CIDR pattern
*
* @param cidr CIDR pattern (e.g., "192.168.1.0/24")
* @param ip IP to match against the pattern
* @returns Whether the IP is in the CIDR range
*/
export function matchIpCidr(cidr: string, ip: string): boolean {
const parsed = parseCidr(cidr);
if (!parsed) {
return false;
}
try {
const { subnet, bits } = parsed;
// Normalize IPv6-mapped IPv4 addresses
const normalizedIp = ip.startsWith('::ffff:') ? ip.substring(7) : ip;
const normalizedSubnet = subnet.startsWith('::ffff:') ? subnet.substring(7) : subnet;
// Convert IP addresses to numeric values
const ipNum = ipToNumber(normalizedIp);
const subnetNum = ipToNumber(normalizedSubnet);
// Calculate subnet mask
const maskNum = ~(2 ** (32 - bits) - 1);
// Check if IP is in subnet
return (ipNum & maskNum) === (subnetNum & maskNum);
} catch (e) {
return false;
}
}
/**
* Match an IP pattern against an IP
*
* @param pattern IP pattern (exact, CIDR, or with wildcards)
* @param ip IP to match against the pattern
* @returns Whether the IP matches the pattern
*/
export function matchIpPattern(pattern: string, ip: string): boolean {
// Normalize IPv6-mapped IPv4 addresses
const normalizedIp = ip.startsWith('::ffff:') ? ip.substring(7) : ip;
const normalizedPattern = pattern.startsWith('::ffff:') ? pattern.substring(7) : pattern;
// Handle exact match with all variations
if (pattern === ip || normalizedPattern === normalizedIp ||
pattern === normalizedIp || normalizedPattern === ip) {
return true;
}
// Handle "all" wildcard
if (pattern === '*' || normalizedPattern === '*') {
return true;
}
// Handle CIDR notation (e.g., 192.168.1.0/24)
if (pattern.includes('/')) {
return matchIpCidr(pattern, normalizedIp) ||
(normalizedPattern !== pattern && matchIpCidr(normalizedPattern, normalizedIp));
}
// Handle glob pattern (e.g., 192.168.1.*)
if (pattern.includes('*')) {
const regexPattern = pattern.replace(/\./g, '\\.').replace(/\*/g, '.*');
const regex = new RegExp(`^${regexPattern}$`);
if (regex.test(ip) || regex.test(normalizedIp)) {
return true;
}
// If pattern was normalized, also test with normalized pattern
if (normalizedPattern !== pattern) {
const normalizedRegexPattern = normalizedPattern.replace(/\./g, '\\.').replace(/\*/g, '.*');
const normalizedRegex = new RegExp(`^${normalizedRegexPattern}$`);
return normalizedRegex.test(ip) || normalizedRegex.test(normalizedIp);
}
}
return false;
}
/**
* Match an IP against allowed and blocked IP patterns
*
* @param ip IP to check
* @param ipAllowList Array of allowed IP patterns
* @param ipBlockList Array of blocked IP patterns
* @returns Whether the IP is allowed
*/
export function isIpAuthorized(
ip: string,
ipAllowList: string[] = ['*'],
ipBlockList: string[] = []
): boolean {
// Check blocked IPs first
if (ipBlockList.length > 0) {
for (const pattern of ipBlockList) {
if (matchIpPattern(pattern, ip)) {
return false; // IP is blocked
}
}
}
// If there are allowed IPs, check them
if (ipAllowList.length > 0) {
// Special case: if '*' is in allowed IPs, all non-blocked IPs are allowed
if (ipAllowList.includes('*')) {
return true;
}
for (const pattern of ipAllowList) {
if (matchIpPattern(pattern, ip)) {
return true; // IP is allowed
}
}
return false; // IP not in allowed list
}
// No allowed IPs specified, so IP is allowed by default
return true;
}
/**
* Match an HTTP header pattern against a header value
*
* @param pattern Expected header value (string or RegExp)
* @param value Actual header value
* @returns Whether the header matches the pattern
*/
export function matchHeader(pattern: string | RegExp, value: string): boolean {
if (typeof pattern === 'string') {
return pattern === value;
} else if (pattern instanceof RegExp) {
return pattern.test(value);
}
return false;
}
/**
* Calculate route specificity score
* Higher score means more specific matching criteria
*
* @param match Match criteria to evaluate
* @returns Numeric specificity score
*/
export function calculateRouteSpecificity(match: {
domains?: string | string[];
path?: string;
clientIp?: string[];
tlsVersion?: string[];
headers?: Record<string, string | RegExp>;
}): number {
let score = 0;
// Path is very specific
if (match.path) {
// More specific if it doesn't use wildcards
score += match.path.includes('*') ? 3 : 4;
}
// Domain is next most specific
if (match.domains) {
const domains = Array.isArray(match.domains) ? match.domains : [match.domains];
// More domains or more specific domains (without wildcards) increase specificity
score += domains.length;
// Add bonus for exact domains (without wildcards)
score += domains.some(d => !d.includes('*')) ? 1 : 0;
}
// Headers are quite specific
if (match.headers) {
score += Object.keys(match.headers).length * 2;
}
// Client IP adds some specificity
if (match.clientIp && match.clientIp.length > 0) {
score += 1;
}
// TLS version adds minimal specificity
if (match.tlsVersion && match.tlsVersion.length > 0) {
score += 1;
}
return score;
}

View File

@ -1,9 +1,5 @@
import * as plugins from '../../plugins.js';
import {
matchIpPattern,
ipToNumber,
matchIpCidr
} from './route-utils.js';
import { IpMatcher } from '../routing/matchers/ip.js';
/**
* Security utilities for IP validation, rate limiting,
@ -90,7 +86,7 @@ export function isIPAuthorized(
// First check if IP is blocked - blocked IPs take precedence
if (blockedIPs.length > 0) {
for (const pattern of blockedIPs) {
if (matchIpPattern(pattern, ip)) {
if (IpMatcher.match(pattern, ip)) {
return false;
}
}
@ -104,7 +100,7 @@ export function isIPAuthorized(
// Then check if IP is allowed in the explicit allow list
if (allowedIPs.length > 0) {
for (const pattern of allowedIPs) {
if (matchIpPattern(pattern, ip)) {
if (IpMatcher.match(pattern, ip)) {
return true;
}
}

View File

@ -0,0 +1,322 @@
import * as plugins from '../../plugins.js';
export interface CleanupOptions {
immediate?: boolean; // Force immediate destruction
allowDrain?: boolean; // Allow write buffer to drain
gracePeriod?: number; // Ms to wait before force close
}
export interface SafeSocketOptions {
port: number;
host: string;
onError?: (error: Error) => void;
onConnect?: () => void;
timeout?: number;
}
/**
* Safely cleanup a socket by removing all listeners and destroying it
* @param socket The socket to cleanup
* @param socketName Optional name for logging
* @param options Cleanup options
*/
export function cleanupSocket(
socket: plugins.net.Socket | plugins.tls.TLSSocket | null,
socketName?: string,
options: CleanupOptions = {}
): Promise<void> {
if (!socket || socket.destroyed) return Promise.resolve();
return new Promise<void>((resolve) => {
const cleanup = () => {
try {
// Remove all event listeners
socket.removeAllListeners();
// Destroy if not already destroyed
if (!socket.destroyed) {
socket.destroy();
}
} catch (err) {
console.error(`Error cleaning up socket${socketName ? ` (${socketName})` : ''}: ${err}`);
}
resolve();
};
if (options.immediate) {
// Immediate cleanup (old behavior)
socket.unpipe();
cleanup();
} else if (options.allowDrain && socket.writable) {
// Allow pending writes to complete
socket.end(() => cleanup());
// Force cleanup after grace period
if (options.gracePeriod) {
setTimeout(() => {
if (!socket.destroyed) {
cleanup();
}
}, options.gracePeriod);
}
} else {
// Default: immediate cleanup
socket.unpipe();
cleanup();
}
});
}
/**
* Create independent cleanup handlers for paired sockets that support half-open connections
* @param clientSocket The client socket
* @param serverSocket The server socket
* @param onBothClosed Callback when both sockets are closed
* @returns Independent cleanup functions for each socket
*/
export function createIndependentSocketHandlers(
clientSocket: plugins.net.Socket | plugins.tls.TLSSocket,
serverSocket: plugins.net.Socket | plugins.tls.TLSSocket,
onBothClosed: (reason: string) => void,
options: { enableHalfOpen?: boolean } = {}
): { cleanupClient: (reason: string) => Promise<void>, cleanupServer: (reason: string) => Promise<void> } {
let clientClosed = false;
let serverClosed = false;
let clientReason = '';
let serverReason = '';
const checkBothClosed = () => {
if (clientClosed && serverClosed) {
onBothClosed(`client: ${clientReason}, server: ${serverReason}`);
}
};
const cleanupClient = async (reason: string) => {
if (clientClosed) return;
clientClosed = true;
clientReason = reason;
// Default behavior: close both sockets when one closes (required for proxy chains)
if (!serverClosed && !options.enableHalfOpen) {
serverSocket.destroy();
}
// Half-open support (opt-in only)
if (!serverClosed && serverSocket.writable && options.enableHalfOpen) {
// Half-close: stop reading from client, let server finish
clientSocket.pause();
clientSocket.unpipe(serverSocket);
await cleanupSocket(clientSocket, 'client', { allowDrain: true, gracePeriod: 5000 });
} else {
await cleanupSocket(clientSocket, 'client', { immediate: true });
}
checkBothClosed();
};
const cleanupServer = async (reason: string) => {
if (serverClosed) return;
serverClosed = true;
serverReason = reason;
// Default behavior: close both sockets when one closes (required for proxy chains)
if (!clientClosed && !options.enableHalfOpen) {
clientSocket.destroy();
}
// Half-open support (opt-in only)
if (!clientClosed && clientSocket.writable && options.enableHalfOpen) {
// Half-close: stop reading from server, let client finish
serverSocket.pause();
serverSocket.unpipe(clientSocket);
await cleanupSocket(serverSocket, 'server', { allowDrain: true, gracePeriod: 5000 });
} else {
await cleanupSocket(serverSocket, 'server', { immediate: true });
}
checkBothClosed();
};
return { cleanupClient, cleanupServer };
}
/**
* Setup socket error and close handlers with proper cleanup
* @param socket The socket to setup handlers for
* @param handleClose The cleanup function to call
* @param handleTimeout Optional custom timeout handler
* @param errorPrefix Optional prefix for error messages
*/
export function setupSocketHandlers(
socket: plugins.net.Socket | plugins.tls.TLSSocket,
handleClose: (reason: string) => void,
handleTimeout?: (socket: plugins.net.Socket | plugins.tls.TLSSocket) => void,
errorPrefix?: string
): void {
socket.on('error', (error) => {
const prefix = errorPrefix || 'Socket';
handleClose(`${prefix}_error: ${error.message}`);
});
socket.on('close', () => {
const prefix = errorPrefix || 'socket';
handleClose(`${prefix}_closed`);
});
socket.on('timeout', () => {
if (handleTimeout) {
handleTimeout(socket); // Custom timeout handling
} else {
// Default: just log, don't close
console.warn(`Socket timeout: ${errorPrefix || 'socket'}`);
}
});
}
/**
* Setup bidirectional data forwarding between two sockets with proper cleanup
* @param clientSocket The client/incoming socket
* @param serverSocket The server/outgoing socket
* @param handlers Object containing optional handlers for data and cleanup
* @returns Cleanup functions for both sockets
*/
export function setupBidirectionalForwarding(
clientSocket: plugins.net.Socket | plugins.tls.TLSSocket,
serverSocket: plugins.net.Socket | plugins.tls.TLSSocket,
handlers: {
onClientData?: (chunk: Buffer) => void;
onServerData?: (chunk: Buffer) => void;
onCleanup: (reason: string) => void;
enableHalfOpen?: boolean;
}
): { cleanupClient: (reason: string) => Promise<void>, cleanupServer: (reason: string) => Promise<void> } {
// Set up cleanup handlers
const { cleanupClient, cleanupServer } = createIndependentSocketHandlers(
clientSocket,
serverSocket,
handlers.onCleanup,
{ enableHalfOpen: handlers.enableHalfOpen }
);
// Set up error and close handlers
setupSocketHandlers(clientSocket, cleanupClient, undefined, 'client');
setupSocketHandlers(serverSocket, cleanupServer, undefined, 'server');
// Set up data forwarding with backpressure handling
clientSocket.on('data', (chunk: Buffer) => {
if (handlers.onClientData) {
handlers.onClientData(chunk);
}
if (serverSocket.writable) {
const flushed = serverSocket.write(chunk);
// Handle backpressure
if (!flushed) {
clientSocket.pause();
serverSocket.once('drain', () => {
if (!clientSocket.destroyed) {
clientSocket.resume();
}
});
}
}
});
serverSocket.on('data', (chunk: Buffer) => {
if (handlers.onServerData) {
handlers.onServerData(chunk);
}
if (clientSocket.writable) {
const flushed = clientSocket.write(chunk);
// Handle backpressure
if (!flushed) {
serverSocket.pause();
clientSocket.once('drain', () => {
if (!serverSocket.destroyed) {
serverSocket.resume();
}
});
}
}
});
return { cleanupClient, cleanupServer };
}
/**
* Create a socket with immediate error handling to prevent crashes
* @param options Socket creation options
* @returns The created socket
*/
export function createSocketWithErrorHandler(options: SafeSocketOptions): plugins.net.Socket {
const { port, host, onError, onConnect, timeout } = options;
// Create socket with immediate error handler attachment
const socket = new plugins.net.Socket();
// Track if connected
let connected = false;
let connectionTimeout: NodeJS.Timeout | null = null;
// Attach error handler BEFORE connecting to catch immediate errors
socket.on('error', (error) => {
console.error(`Socket connection error to ${host}:${port}: ${error.message}`);
// Clear the connection timeout if it exists
if (connectionTimeout) {
clearTimeout(connectionTimeout);
connectionTimeout = null;
}
if (onError) {
onError(error);
}
});
// Attach connect handler
const handleConnect = () => {
connected = true;
// Clear the connection timeout
if (connectionTimeout) {
clearTimeout(connectionTimeout);
connectionTimeout = null;
}
// Set inactivity timeout if provided (after connection is established)
if (timeout) {
socket.setTimeout(timeout);
}
if (onConnect) {
onConnect();
}
};
socket.on('connect', handleConnect);
// Implement connection establishment timeout
if (timeout) {
connectionTimeout = setTimeout(() => {
if (!connected && !socket.destroyed) {
// Connection timed out - destroy the socket
const error = new Error(`Connection timeout after ${timeout}ms to ${host}:${port}`);
(error as any).code = 'ETIMEDOUT';
console.error(`Socket connection timeout to ${host}:${port} after ${timeout}ms`);
// Destroy the socket
socket.destroy();
// Call error handler
if (onError) {
onError(error);
}
}
}, timeout);
}
// Now attempt to connect - any immediate errors will be caught
socket.connect(port, host);
return socket;
}

View File

@ -2,6 +2,7 @@ import * as plugins from '../../plugins.js';
import { ForwardingHandler } from './base-handler.js';
import type { IForwardConfig } from '../config/forwarding-types.js';
import { ForwardingHandlerEvents } from '../config/forwarding-types.js';
import { setupSocketHandlers } from '../../core/utils/socket-utils.js';
/**
* Handler for HTTP-only forwarding
@ -40,12 +41,20 @@ export class HttpForwardingHandler extends ForwardingHandler {
const remoteAddress = socket.remoteAddress || 'unknown';
const localPort = socket.localPort || 80;
socket.on('close', (hadError) => {
// Set up socket handlers with proper cleanup
const handleClose = (reason: string) => {
this.emit(ForwardingHandlerEvents.DISCONNECTED, {
remoteAddress,
hadError
reason
});
});
};
// Use custom timeout handler that doesn't close the socket
setupSocketHandlers(socket, handleClose, () => {
// For HTTP, we can be more aggressive with timeouts since connections are shorter
// But still don't close immediately - let the connection finish naturally
console.warn(`HTTP socket timeout from ${remoteAddress}`);
}, 'http');
socket.on('error', (error) => {
this.emit(ForwardingHandlerEvents.ERROR, {

View File

@ -2,6 +2,7 @@ import * as plugins from '../../plugins.js';
import { ForwardingHandler } from './base-handler.js';
import type { IForwardConfig } from '../config/forwarding-types.js';
import { ForwardingHandlerEvents } from '../config/forwarding-types.js';
import { createIndependentSocketHandlers, setupSocketHandlers, createSocketWithErrorHandler } from '../../core/utils/socket-utils.js';
/**
* Handler for HTTPS passthrough (SNI forwarding without termination)
@ -47,128 +48,121 @@ export class HttpsPassthroughHandler extends ForwardingHandler {
target: `${target.host}:${target.port}`
});
// Create a connection to the target server
const serverSocket = plugins.net.connect(target.port, target.host);
// Handle errors on the server socket
serverSocket.on('error', (error) => {
this.emit(ForwardingHandlerEvents.ERROR, {
remoteAddress,
error: `Target connection error: ${error.message}`
});
// Close the client socket if it's still open
if (!clientSocket.destroyed) {
clientSocket.destroy();
}
});
// Handle errors on the client socket
clientSocket.on('error', (error) => {
this.emit(ForwardingHandlerEvents.ERROR, {
remoteAddress,
error: `Client connection error: ${error.message}`
});
// Close the server socket if it's still open
if (!serverSocket.destroyed) {
serverSocket.destroy();
}
});
// Track data transfer for logging
let bytesSent = 0;
let bytesReceived = 0;
let serverSocket: plugins.net.Socket | null = null;
let cleanupClient: ((reason: string) => Promise<void>) | null = null;
let cleanupServer: ((reason: string) => Promise<void>) | null = null;
// Forward data from client to server
clientSocket.on('data', (data) => {
bytesSent += data.length;
// Check if server socket is writable
if (serverSocket.writable) {
const flushed = serverSocket.write(data);
// Create a connection to the target server with immediate error handling
serverSocket = createSocketWithErrorHandler({
port: target.port,
host: target.host,
onError: async (error) => {
// Server connection failed - clean up client socket immediately
this.emit(ForwardingHandlerEvents.ERROR, {
error: error.message,
code: (error as any).code || 'UNKNOWN',
remoteAddress,
target: `${target.host}:${target.port}`
});
// Handle backpressure
if (!flushed) {
clientSocket.pause();
serverSocket.once('drain', () => {
clientSocket.resume();
});
// Clean up the client socket since we can't forward
if (!clientSocket.destroyed) {
clientSocket.destroy();
}
}
this.emit(ForwardingHandlerEvents.DATA_FORWARDED, {
direction: 'outbound',
bytes: data.length,
total: bytesSent
});
});
// Forward data from server to client
serverSocket.on('data', (data) => {
bytesReceived += data.length;
// Check if client socket is writable
if (clientSocket.writable) {
const flushed = clientSocket.write(data);
// Handle backpressure
if (!flushed) {
serverSocket.pause();
clientSocket.once('drain', () => {
serverSocket.resume();
this.emit(ForwardingHandlerEvents.DISCONNECTED, {
remoteAddress,
bytesSent: 0,
bytesReceived: 0,
reason: `server_connection_failed: ${error.message}`
});
},
onConnect: () => {
// Connection successful - set up forwarding handlers
const handlers = createIndependentSocketHandlers(
clientSocket,
serverSocket!,
(reason) => {
this.emit(ForwardingHandlerEvents.DISCONNECTED, {
remoteAddress,
bytesSent,
bytesReceived,
reason
});
}
);
cleanupClient = handlers.cleanupClient;
cleanupServer = handlers.cleanupServer;
// Setup handlers with custom timeout handling that doesn't close connections
const timeout = this.getTimeout();
setupSocketHandlers(clientSocket, cleanupClient, (socket) => {
// Just reset timeout, don't close
socket.setTimeout(timeout);
}, 'client');
setupSocketHandlers(serverSocket!, cleanupServer, (socket) => {
// Just reset timeout, don't close
socket.setTimeout(timeout);
}, 'server');
// Forward data from client to server
clientSocket.on('data', (data) => {
bytesSent += data.length;
// Check if server socket is writable
if (serverSocket && serverSocket.writable) {
const flushed = serverSocket.write(data);
// Handle backpressure
if (!flushed) {
clientSocket.pause();
serverSocket.once('drain', () => {
clientSocket.resume();
});
}
}
this.emit(ForwardingHandlerEvents.DATA_FORWARDED, {
direction: 'outbound',
bytes: data.length,
total: bytesSent
});
}
});
// Forward data from server to client
serverSocket!.on('data', (data) => {
bytesReceived += data.length;
// Check if client socket is writable
if (clientSocket.writable) {
const flushed = clientSocket.write(data);
// Handle backpressure
if (!flushed) {
serverSocket!.pause();
clientSocket.once('drain', () => {
serverSocket!.resume();
});
}
}
this.emit(ForwardingHandlerEvents.DATA_FORWARDED, {
direction: 'inbound',
bytes: data.length,
total: bytesReceived
});
});
// Set initial timeouts - they will be reset on each timeout event
clientSocket.setTimeout(timeout);
serverSocket!.setTimeout(timeout);
}
this.emit(ForwardingHandlerEvents.DATA_FORWARDED, {
direction: 'inbound',
bytes: data.length,
total: bytesReceived
});
});
// Handle connection close
const handleClose = () => {
if (!clientSocket.destroyed) {
clientSocket.destroy();
}
if (!serverSocket.destroyed) {
serverSocket.destroy();
}
this.emit(ForwardingHandlerEvents.DISCONNECTED, {
remoteAddress,
bytesSent,
bytesReceived
});
};
// Set up close handlers
clientSocket.on('close', handleClose);
serverSocket.on('close', handleClose);
// Set timeouts
const timeout = this.getTimeout();
clientSocket.setTimeout(timeout);
serverSocket.setTimeout(timeout);
// Handle timeouts
clientSocket.on('timeout', () => {
this.emit(ForwardingHandlerEvents.ERROR, {
remoteAddress,
error: 'Client connection timeout'
});
handleClose();
});
serverSocket.on('timeout', () => {
this.emit(ForwardingHandlerEvents.ERROR, {
remoteAddress,
error: 'Server connection timeout'
});
handleClose();
});
}
@ -177,7 +171,7 @@ export class HttpsPassthroughHandler extends ForwardingHandler {
* @param req The HTTP request
* @param res The HTTP response
*/
public handleHttpRequest(req: plugins.http.IncomingMessage, res: plugins.http.ServerResponse): void {
public handleHttpRequest(_req: plugins.http.IncomingMessage, res: plugins.http.ServerResponse): void {
// HTTPS passthrough doesn't support HTTP requests
res.writeHead(404, { 'Content-Type': 'text/plain' });
res.end('HTTP not supported for this domain');

View File

@ -2,6 +2,7 @@ import * as plugins from '../../plugins.js';
import { ForwardingHandler } from './base-handler.js';
import type { IForwardConfig } from '../config/forwarding-types.js';
import { ForwardingHandlerEvents } from '../config/forwarding-types.js';
import { setupSocketHandlers, createSocketWithErrorHandler, setupBidirectionalForwarding } from '../../core/utils/socket-utils.js';
/**
* Handler for HTTPS termination with HTTP backend
@ -95,61 +96,34 @@ export class HttpsTerminateToHttpHandler extends ForwardingHandler {
tls: true
});
// Handle TLS errors
tlsSocket.on('error', (error) => {
this.emit(ForwardingHandlerEvents.ERROR, {
remoteAddress,
error: `TLS error: ${error.message}`
});
if (!tlsSocket.destroyed) {
tlsSocket.destroy();
}
});
// The TLS socket will now emit HTTP traffic that can be processed
// In a real implementation, we would create an HTTP parser and handle
// the requests here, but for simplicity, we'll just log the data
// Variables to track connections
let backendSocket: plugins.net.Socket | null = null;
let dataBuffer = Buffer.alloc(0);
let connectionEstablished = false;
let forwardingSetup = false;
tlsSocket.on('data', (data) => {
// Append to buffer
dataBuffer = Buffer.concat([dataBuffer, data]);
// Very basic HTTP parsing - in a real implementation, use http-parser
if (dataBuffer.includes(Buffer.from('\r\n\r\n'))) {
const target = this.getTargetFromConfig();
// Simple example: forward the data to an HTTP server
const socket = plugins.net.connect(target.port, target.host, () => {
socket.write(dataBuffer);
dataBuffer = Buffer.alloc(0);
// Set up bidirectional data flow
tlsSocket.pipe(socket);
socket.pipe(tlsSocket);
// Set up initial error handling for TLS socket
const tlsCleanupHandler = (reason: string) => {
if (!forwardingSetup) {
// If forwarding not set up yet, emit disconnected and cleanup
this.emit(ForwardingHandlerEvents.DISCONNECTED, {
remoteAddress,
reason
});
dataBuffer = Buffer.alloc(0);
connectionEstablished = false;
socket.on('error', (error) => {
this.emit(ForwardingHandlerEvents.ERROR, {
remoteAddress,
error: `Target connection error: ${error.message}`
});
if (!tlsSocket.destroyed) {
tlsSocket.destroy();
}
});
if (!tlsSocket.destroyed) {
tlsSocket.destroy();
}
if (backendSocket && !backendSocket.destroyed) {
backendSocket.destroy();
}
}
});
// If forwarding is setup, setupBidirectionalForwarding will handle cleanup
};
// Handle close
tlsSocket.on('close', () => {
this.emit(ForwardingHandlerEvents.DISCONNECTED, {
remoteAddress
});
});
setupSocketHandlers(tlsSocket, tlsCleanupHandler, undefined, 'tls');
// Set timeout
const timeout = this.getTimeout();
@ -160,9 +134,83 @@ export class HttpsTerminateToHttpHandler extends ForwardingHandler {
remoteAddress,
error: 'TLS connection timeout'
});
tlsCleanupHandler('timeout');
});
// Handle TLS data
tlsSocket.on('data', (data) => {
// If backend connection already established, just forward the data
if (connectionEstablished && backendSocket && !backendSocket.destroyed) {
backendSocket.write(data);
return;
}
if (!tlsSocket.destroyed) {
tlsSocket.destroy();
// Append to buffer
dataBuffer = Buffer.concat([dataBuffer, data]);
// Very basic HTTP parsing - in a real implementation, use http-parser
if (dataBuffer.includes(Buffer.from('\r\n\r\n')) && !connectionEstablished) {
const target = this.getTargetFromConfig();
// Create backend connection with immediate error handling
backendSocket = createSocketWithErrorHandler({
port: target.port,
host: target.host,
onError: (error) => {
this.emit(ForwardingHandlerEvents.ERROR, {
error: error.message,
code: (error as any).code || 'UNKNOWN',
remoteAddress,
target: `${target.host}:${target.port}`
});
// Clean up the TLS socket since we can't forward
if (!tlsSocket.destroyed) {
tlsSocket.destroy();
}
this.emit(ForwardingHandlerEvents.DISCONNECTED, {
remoteAddress,
reason: `backend_connection_failed: ${error.message}`
});
},
onConnect: () => {
connectionEstablished = true;
// Send buffered data
if (dataBuffer.length > 0) {
backendSocket!.write(dataBuffer);
dataBuffer = Buffer.alloc(0);
}
// Now set up bidirectional forwarding with proper cleanup
forwardingSetup = true;
setupBidirectionalForwarding(tlsSocket, backendSocket!, {
onCleanup: (reason) => {
this.emit(ForwardingHandlerEvents.DISCONNECTED, {
remoteAddress,
reason
});
dataBuffer = Buffer.alloc(0);
connectionEstablished = false;
forwardingSetup = false;
},
enableHalfOpen: false // Close both when one closes
});
}
});
// Additional error logging for backend socket
backendSocket.on('error', (error) => {
if (!connectionEstablished) {
// Connection failed during setup
this.emit(ForwardingHandlerEvents.ERROR, {
remoteAddress,
error: `Target connection error: ${error.message}`
});
}
// If connected, setupBidirectionalForwarding handles cleanup
});
}
});
}

View File

@ -2,6 +2,7 @@ import * as plugins from '../../plugins.js';
import { ForwardingHandler } from './base-handler.js';
import type { IForwardConfig } from '../config/forwarding-types.js';
import { ForwardingHandlerEvents } from '../config/forwarding-types.js';
import { setupSocketHandlers, createSocketWithErrorHandler, setupBidirectionalForwarding } from '../../core/utils/socket-utils.js';
/**
* Handler for HTTPS termination with HTTPS backend
@ -93,89 +94,28 @@ export class HttpsTerminateToHttpsHandler extends ForwardingHandler {
tls: true
});
// Handle TLS errors
tlsSocket.on('error', (error) => {
this.emit(ForwardingHandlerEvents.ERROR, {
remoteAddress,
error: `TLS error: ${error.message}`
});
if (!tlsSocket.destroyed) {
tlsSocket.destroy();
// Variable to track backend socket
let backendSocket: plugins.tls.TLSSocket | null = null;
let isConnectedToBackend = false;
// Set up initial error handling for TLS socket
const tlsCleanupHandler = (reason: string) => {
if (!isConnectedToBackend) {
// If backend not connected yet, just emit disconnected event
this.emit(ForwardingHandlerEvents.DISCONNECTED, {
remoteAddress,
reason
});
// Cleanup TLS socket if needed
if (!tlsSocket.destroyed) {
tlsSocket.destroy();
}
}
});
// The TLS socket will now emit HTTP traffic that can be processed
// In a real implementation, we would create an HTTP parser and handle
// the requests here, but for simplicity, we'll just forward the data
// Get the target from configuration
const target = this.getTargetFromConfig();
// Set up the connection to the HTTPS backend
const connectToBackend = () => {
const backendSocket = plugins.tls.connect({
host: target.host,
port: target.port,
// In a real implementation, we would configure TLS options
rejectUnauthorized: false // For testing only, never use in production
}, () => {
this.emit(ForwardingHandlerEvents.DATA_FORWARDED, {
direction: 'outbound',
target: `${target.host}:${target.port}`,
tls: true
});
// Set up bidirectional data flow
tlsSocket.pipe(backendSocket);
backendSocket.pipe(tlsSocket);
});
backendSocket.on('error', (error) => {
this.emit(ForwardingHandlerEvents.ERROR, {
remoteAddress,
error: `Backend connection error: ${error.message}`
});
if (!tlsSocket.destroyed) {
tlsSocket.destroy();
}
});
// Handle close
backendSocket.on('close', () => {
if (!tlsSocket.destroyed) {
tlsSocket.destroy();
}
});
// Set timeout
const timeout = this.getTimeout();
backendSocket.setTimeout(timeout);
backendSocket.on('timeout', () => {
this.emit(ForwardingHandlerEvents.ERROR, {
remoteAddress,
error: 'Backend connection timeout'
});
if (!backendSocket.destroyed) {
backendSocket.destroy();
}
});
// If connected to backend, setupBidirectionalForwarding will handle cleanup
};
// Wait for the TLS handshake to complete before connecting to backend
tlsSocket.on('secure', () => {
connectToBackend();
});
// Handle close
tlsSocket.on('close', () => {
this.emit(ForwardingHandlerEvents.DISCONNECTED, {
remoteAddress
});
});
setupSocketHandlers(tlsSocket, tlsCleanupHandler, undefined, 'tls');
// Set timeout
const timeout = this.getTimeout();
@ -186,10 +126,75 @@ export class HttpsTerminateToHttpsHandler extends ForwardingHandler {
remoteAddress,
error: 'TLS connection timeout'
});
tlsCleanupHandler('timeout');
});
// Get the target from configuration
const target = this.getTargetFromConfig();
// Set up the connection to the HTTPS backend
const connectToBackend = () => {
backendSocket = plugins.tls.connect({
host: target.host,
port: target.port,
// In a real implementation, we would configure TLS options
rejectUnauthorized: false // For testing only, never use in production
}, () => {
isConnectedToBackend = true;
this.emit(ForwardingHandlerEvents.DATA_FORWARDED, {
direction: 'outbound',
target: `${target.host}:${target.port}`,
tls: true
});
// Set up bidirectional forwarding with proper cleanup
setupBidirectionalForwarding(tlsSocket, backendSocket!, {
onCleanup: (reason) => {
this.emit(ForwardingHandlerEvents.DISCONNECTED, {
remoteAddress,
reason
});
},
enableHalfOpen: false // Close both when one closes
});
// Set timeout for backend socket
backendSocket!.setTimeout(timeout);
backendSocket!.on('timeout', () => {
this.emit(ForwardingHandlerEvents.ERROR, {
remoteAddress,
error: 'Backend connection timeout'
});
// Let setupBidirectionalForwarding handle the cleanup
});
});
if (!tlsSocket.destroyed) {
tlsSocket.destroy();
}
// Handle backend connection errors
backendSocket.on('error', (error) => {
this.emit(ForwardingHandlerEvents.ERROR, {
remoteAddress,
error: `Backend connection error: ${error.message}`
});
if (!isConnectedToBackend) {
// Connection failed, clean up TLS socket
if (!tlsSocket.destroyed) {
tlsSocket.destroy();
}
this.emit(ForwardingHandlerEvents.DISCONNECTED, {
remoteAddress,
reason: `backend_connection_failed: ${error.message}`
});
}
// If connected, let setupBidirectionalForwarding handle cleanup
});
};
// Wait for the TLS handshake to complete before connecting to backend
tlsSocket.on('secure', () => {
connectToBackend();
});
}

View File

@ -2,28 +2,18 @@
* SmartProxy main module exports
*/
// Legacy exports (to maintain backward compatibility)
// Migrated to the new proxies structure
// NFTables proxy exports
export * from './proxies/nftables-proxy/index.js';
// Export HttpProxy elements selectively to avoid RouteManager ambiguity
// Export HttpProxy elements
export { HttpProxy, CertificateManager, ConnectionPool, RequestHandler, WebSocketHandler } from './proxies/http-proxy/index.js';
export type { IMetricsTracker, MetricsTracker } from './proxies/http-proxy/index.js';
// Export models except IAcmeOptions to avoid conflict
export type { IHttpProxyOptions, ICertificateEntry, ILogger } from './proxies/http-proxy/models/types.js';
export { RouteManager as HttpProxyRouteManager } from './proxies/http-proxy/models/types.js';
// Backward compatibility exports (deprecated)
export { HttpProxy as NetworkProxy } from './proxies/http-proxy/index.js';
export type { IHttpProxyOptions as INetworkProxyOptions } from './proxies/http-proxy/models/types.js';
export { HttpProxyBridge as NetworkProxyBridge } from './proxies/smart-proxy/index.js';
// Certificate and Port80 modules have been removed - use SmartCertManager instead
// Redirect module has been removed - use route-based redirects instead
export { SharedRouteManager as HttpProxyRouteManager } from './core/routing/route-manager.js';
// Export SmartProxy elements selectively to avoid RouteManager ambiguity
export { SmartProxy, ConnectionManager, SecurityManager, TimeoutManager, TlsManager, HttpProxyBridge, RouteConnectionHandler, SmartCertManager } from './proxies/smart-proxy/index.js';
export { RouteManager } from './proxies/smart-proxy/route-manager.js';
export { SharedRouteManager as RouteManager } from './core/routing/route-manager.js';
// Export smart-proxy models
export type { ISmartProxyOptions, IConnectionRecord, IRouteConfig, IRouteMatch, IRouteAction, IRouteTls, IRouteContext } from './proxies/smart-proxy/models/index.js';
export type { TSmartProxyCertProvisionObject } from './proxies/smart-proxy/models/interfaces.js';

View File

@ -4,11 +4,12 @@ import * as fs from 'fs';
import * as http from 'http';
import * as https from 'https';
import * as net from 'net';
import * as path from 'path';
import * as tls from 'tls';
import * as url from 'url';
import * as http2 from 'http2';
export { EventEmitter, fs, http, https, net, tls, url, http2 };
export { EventEmitter, fs, http, https, net, path, tls, url, http2 };
// tsclass scope
import * as tsclass from '@tsclass/tsclass';
@ -29,6 +30,7 @@ import * as smartacmeHandlers from '@push.rocks/smartacme/dist_ts/handlers/index
import * as smartlog from '@push.rocks/smartlog';
import * as smartlogDestinationLocal from '@push.rocks/smartlog/destination-local';
import * as taskbuffer from '@push.rocks/taskbuffer';
import * as smartrx from '@push.rocks/smartrx';
export {
lik,
@ -44,6 +46,7 @@ export {
smartlog,
smartlogDestinationLocal,
taskbuffer,
smartrx,
};
// third party scope

View File

@ -2,6 +2,7 @@ import * as plugins from '../../plugins.js';
import * as fs from 'fs';
import * as path from 'path';
import { fileURLToPath } from 'url';
import { AsyncFileSystem } from '../../core/utils/fs-utils.js';
import { type IHttpProxyOptions, type ICertificateEntry, type ILogger, createLogger } from './models/types.js';
import type { IRouteConfig } from '../smart-proxy/models/route-types.js';
@ -17,6 +18,7 @@ export class CertificateManager {
private certificateStoreDir: string;
private logger: ILogger;
private httpsServer: plugins.https.Server | null = null;
private initialized = false;
constructor(private options: IHttpProxyOptions) {
this.certificateStoreDir = path.resolve(options.acme?.certificateStore || './certs');
@ -24,6 +26,15 @@ export class CertificateManager {
this.logger.warn('CertificateManager is deprecated - use SmartCertManager instead');
// Initialize synchronously for backward compatibility but log warning
this.initializeSync();
}
/**
* Synchronous initialization for backward compatibility
* @deprecated This uses sync filesystem operations which block the event loop
*/
private initializeSync(): void {
// Ensure certificate store directory exists
try {
if (!fs.existsSync(this.certificateStoreDir)) {
@ -36,9 +47,28 @@ export class CertificateManager {
this.loadDefaultCertificates();
}
/**
* Async initialization - preferred method
*/
public async initialize(): Promise<void> {
if (this.initialized) return;
// Ensure certificate store directory exists
try {
await AsyncFileSystem.ensureDir(this.certificateStoreDir);
this.logger.info(`Ensured certificate store directory: ${this.certificateStoreDir}`);
} catch (error) {
this.logger.warn(`Failed to create certificate store directory: ${error}`);
}
await this.loadDefaultCertificatesAsync();
this.initialized = true;
}
/**
* Loads default certificates from the filesystem
* @deprecated This uses sync filesystem operations which block the event loop
*/
public loadDefaultCertificates(): void {
const __dirname = path.dirname(fileURLToPath(import.meta.url));
@ -49,7 +79,28 @@ export class CertificateManager {
key: fs.readFileSync(path.join(certPath, 'key.pem'), 'utf8'),
cert: fs.readFileSync(path.join(certPath, 'cert.pem'), 'utf8')
};
this.logger.info('Loaded default certificates from filesystem');
this.logger.info('Loaded default certificates from filesystem (sync - deprecated)');
} catch (error) {
this.logger.error(`Failed to load default certificates: ${error}`);
this.generateSelfSignedCertificate();
}
}
/**
* Loads default certificates from the filesystem asynchronously
*/
public async loadDefaultCertificatesAsync(): Promise<void> {
const __dirname = path.dirname(fileURLToPath(import.meta.url));
const certPath = path.join(__dirname, '..', '..', '..', 'assets', 'certs');
try {
const [key, cert] = await Promise.all([
AsyncFileSystem.readFile(path.join(certPath, 'key.pem')),
AsyncFileSystem.readFile(path.join(certPath, 'cert.pem'))
]);
this.defaultCertificates = { key, cert };
this.logger.info('Loaded default certificates from filesystem (async)');
} catch (error) {
this.logger.error(`Failed to load default certificates: ${error}`);
this.generateSelfSignedCertificate();

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