smartproxy/changelog.md

# Changelog

## 2025-02-26 - 3.14.0 - feat(PortProxy)
Introduce max connection lifetime feature

- Added an optional maxConnectionLifetime setting for PortProxy.
- Forces cleanup of long-lived connections based on inactivity or lifetime limit.

## 2025-02-25 - 3.13.0 - feat(core)
Add support for tagging iptables rules with comments and cleaning them up on process exit

- Extended IPTablesProxy class to include tagging rules with unique comments.
- Added feature to clean up iptables rules via comments during process exit.

## 2025-02-24 - 3.12.0 - feat(IPTablesProxy)
Introduce IPTablesProxy class for managing iptables NAT rules

- Added IPTablesProxy class to facilitate basic port forwarding using iptables.
- Introduced IIpTableProxySettings interface for configuring IPTablesProxy.
- Implemented start and stop methods for managing iptables rules dynamically.

## 2025-02-24 - 3.11.0 - feat(Port80Handler)
Add automatic certificate issuance with ACME client

- Implemented automatic certificate issuance using 'acme-client' for Port80Handler.
- Converts account key and CSR from Buffers to strings for processing.
- Implemented HTTP-01 challenge handling for certificate acquisition.
- New certificates are fetched and added dynamically.

## 2025-02-24 - 3.10.5 - fix(portproxy)
Fix incorrect import path in test file

- Change import path from '../ts/smartproxy.portproxy.js' to '../ts/classes.portproxy.js' in test/test.portproxy.ts

## 2025-02-23 - 3.10.4 - fix(PortProxy)
Refactor connection tracking to utilize unified records in PortProxy

- Implemented a unified record system for tracking incoming and outgoing connections.
- Replaced individual connection tracking sets with a Set of IConnectionRecord.
- Improved logging of connection activities and statistics.

## 2025-02-23 - 3.10.3 - fix(PortProxy)
Refactor and optimize PortProxy for improved readability and maintainability

- Simplified and clarified inline comments.
- Optimized the extractSNI function for better readability.
- Streamlined the cleanup process for connections in PortProxy.
- Improved handling and logging of incoming and outgoing connections.

## 2025-02-23 - 3.10.2 - fix(PortProxy)
Fix connection handling to include timeouts for SNI-enabled connections.

- Added initial data timeout for SNI-enabled connections to improve connection handling.
- Cleared timeout once data is received to prevent premature socket closure.

## 2025-02-22 - 3.10.1 - fix(PortProxy)
Improve socket cleanup logic to prevent potential resource leaks

- Updated socket cleanup in PortProxy to ensure sockets are forcefully destroyed if not already destroyed.

## 2025-02-22 - 3.10.0 - feat(smartproxy.portproxy)
Enhance PortProxy with detailed connection statistics and termination tracking

- Added tracking of termination statistics for incoming and outgoing connections
- Enhanced logging to include detailed termination statistics
- Introduced helpers to update and log termination stats
- Retained detailed connection duration and active connection logging

## 2025-02-22 - 3.9.4 - fix(PortProxy)
Ensure proper cleanup on connection rejection in PortProxy

- Added cleanup calls after socket end in connection rejection scenarios within PortProxy

## 2025-02-21 - 3.9.3 - fix(PortProxy)
Fix handling of optional outgoing socket in PortProxy

- Refactored the cleanUpSockets function to correctly handle cases where the outgoing socket may be undefined.
- Ensured correct handling of socket events with non-null assertions where applicable.
- Improved robustness in connection establishment and cleanup processes.

## 2025-02-21 - 3.9.2 - fix(PortProxy)
Improve timeout handling for port proxy connections

- Added console logging for both incoming and outgoing side timeouts in the PortProxy class.
- Updated the timeout event handlers to ensure proper cleanup of connections.

## 2025-02-21 - 3.9.1 - fix(dependencies)
Ensure correct ordering of dependencies and improve logging format.

- Reorder dependencies in package.json for better readability.
- Use pretty-ms for displaying time durations in logs.

## 2025-02-21 - 3.9.0 - feat(smartproxy.portproxy)
Add logging of connection durations to PortProxy

- Track start times for incoming and outgoing connections.
- Log duration of longest running incoming and outgoing connections every 10 seconds.

## 2025-02-21 - 3.8.1 - fix(plugins)
Simplified plugin import structure across codebase

- Consolidated plugin imports under a single 'plugins.ts' file.
- Replaced individual plugin imports in smartproxy files with the consolidated plugin imports.
- Fixed error handling for early socket errors in PortProxy setup.

## 2025-02-21 - 3.8.0 - feat(PortProxy)
Add active connection tracking and logging in PortProxy

- Implemented a feature to track active incoming connections in PortProxy.
- Active connections are now logged every 10 seconds for monitoring purposes.
- Refactored connection handling to ensure proper cleanup and logging.

## 2025-02-21 - 3.7.3 - fix(portproxy)
Fix handling of connections in PortProxy to improve stability and performance.

- Improved IP normalization and matching
- Better SNI extraction and handling for TLS
- Streamlined connection handling with robust error management

## 2025-02-21 - 3.7.2 - fix(PortProxy)
Improve SNICallback and connection handling in PortProxy

- Fixed SNICallback to create minimal TLS context for SNI.
- Changed connection setup to use net.connect for raw passthrough.

## 2025-02-21 - 3.7.1 - fix(smartproxy.portproxy)
Optimize SNI handling by simplifying context creation

- Removed unnecessary SecureContext creation for SNI requests in PortProxy
- Improved handling of SNI passthrough by acknowledging requests without context creation

## 2025-02-21 - 3.7.0 - feat(PortProxy)
Add optional source IP preservation support in PortProxy

- Added a feature to optionally preserve the client's source IP when proxying connections.
- Enhanced test cases to include scenarios for source IP preservation.

## 2025-02-21 - 3.6.0 - feat(PortProxy)
Add feature to preserve original client IP through chained proxies

- Added support to bind local address in PortProxy to preserve original client IP.
- Implemented test for chained proxies to ensure client IP is preserved.

## 2025-02-21 - 3.5.0 - feat(PortProxy)
Enhance PortProxy to support domain-specific target IPs

- Introduced support for domain-specific target IP configurations in PortProxy.
- Updated connection handling to prioritize domain-specific target IPs if provided.
- Added tests to verify forwarding based on domain-specific target IPs.

## 2025-02-21 - 3.4.4 - fix(PortProxy)
Fixed handling of SNI domain connections and IP allowance checks

- Improved logic for handling SNI domain checks, ensuring IPs are correctly verified.
- Fixed issue where default allowed IPs were not being checked correctly for non-SNI connections.
- Revised the SNICallback behavior to handle connections more gracefully when domain configurations are unavailable.

## 2025-02-21 - 3.4.3 - fix(PortProxy)
Fixed indentation issue and ensured proper cleanup of sockets in PortProxy

- Fixed inconsistent indentation in IP allowance check.
- Ensured proper cleanup of sockets on connection end in PortProxy.

## 2025-02-21 - 3.4.2 - fix(smartproxy)
Enhance SSL/TLS handling with SNI and error logging

- Improved handling for SNI-enabled and non-SNI connections
- Added detailed logging for connection establishment and rejections
- Introduced error logging for TLS client errors and server errors

## 2025-02-21 - 3.4.1 - fix(PortProxy)
Normalize IP addresses for port proxy to handle IPv4-mapped IPv6 addresses.

- Improved IP normalization logic in PortProxy to support IPv4-mapped IPv6 addresses.
- Updated isAllowed function to expand patterns for better matching accuracy.

## 2025-02-21 - 3.4.0 - feat(PortProxy)
Enhanced PortProxy with custom target host and improved testing

- PortProxy constructor now accepts 'fromPort', 'toPort', and optional 'toHost' directly from settings
- Refactored test cases to cover forwarding to the custom host
- Added support to handle multiple concurrent connections
- Refactored internal connection handling logic to utilize default configurations

## 2025-02-21 - 3.3.1 - fix(PortProxy)
fixed import usage of net and tls libraries for PortProxy

- Corrected the use of plugins for importing 'tls' and 'net' libraries in the PortProxy module.
- Updated the constructor of PortProxy to accept combined tls options with ProxySettings.

## 2025-02-21 - 3.3.0 - feat(PortProxy)
Enhanced PortProxy with domain and IP filtering, SNI support, and minimatch integration

- Added new ProxySettings interface to configure domain patterns, SNI, and default allowed IPs.
- Integrated minimatch to filter allowed IPs and domains.
- Enabled SNI support for PortProxy connections.
- Updated port proxy test to accommodate new settings.

## 2025-02-04 - 3.2.0 - feat(testing)
Added a comprehensive test suite for the PortProxy class

- Set up a test environment for PortProxy using net.Server.
- Test coverage includes starting and stopping the proxy, handling TCP connections, concurrent connections, and timeouts.
- Ensures proper resource cleanup after tests.

## 2025-02-04 - 3.1.4 - fix(core)
No uncommitted changes. Preparing for potential minor improvements or bug fixes.


## 2025-02-04 - 3.1.3 - fix(networkproxy)
Refactor and improve WebSocket handling and request processing

- Improved error handling in WebSocket connection and request processing.
- Refactored the WebSocket handling in NetworkProxy to use a unified error logging mechanism.

## 2025-02-04 - 3.1.2 - fix(core)
Refactor certificate handling across the project

- Moved certificate keys and certs to the assets/certs directory.
- Updated test utilities to load certificates from the central location.
- Cleaned up redundant code and improved error logging regarding certificates.
- Ensured correct handling of host header in ProxyRouter class.

## 2025-02-03 - 3.1.1 - fix(workflow)
Update Gitea workflow paths and dependencies

- Updated registry paths for npmci image and repositories in Gitea workflow files.
- Fixed dependency paths in package.json.
- Completed adding typescript to the list of devDependencies.

## 2024-10-07 - 3.1.0 - feat(NetworkProxy)
Introduce WebSocket heartbeat to maintain active connections in NetworkProxy

- Added heartbeat mechanism to WebSocket connections to ensure they remain active.
- Terminating WebSocket if no pong is received for 5 minutes.
- Set up heartbeat interval to run every 1 minute for connection checks.

## 2024-10-07 - 3.0.61 - fix(networkproxy)
Improve error handling for proxy requests

- Wrapped proxy request logic in a try-catch block to handle errors gracefully.
- Improved error handling for WebSocket communication by checking errors before attempting to send messages.
- Added logging for error cases to aid in debugging.

## 2024-05-29 - 3.0.60 - various updates
Maintenance updates and adjustments.

- Updated project description
- Updated tsconfig settings
- Updated npmextra.json with new githost info

## 2023-07-27 - 3.0.58 to 3.0.59 - core improvements
Improvements and internal restructuring.

- Switch to a new organizational scheme
- Core updates and adjustments

## 2022-07-29 - 2.0.16 to 3.0.0 - major transition
This release marks a major transition with several breaking changes.

- BREAKING CHANGE: switched core to ESM (EcmaScript Module)
- Major core updates