- 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.
- 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.
- 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.
- 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.
- 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
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.
