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fix(proxy): improve proxy robustness: add connect timeouts, graceful shutdown, WebSocket watchdog, and metrics guard

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Jürgen Kunz
2026-02-13 16:57:46 +00:00
parent 07e464fdac
commit a8f8946a4d
6 changed files with 199 additions and 39 deletions
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changelog.md
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# Changelog
## 2026-02-13 - 24.0.1 - fix(proxy)
improve proxy robustness: add connect timeouts, graceful shutdown, WebSocket watchdog, and metrics guard
- Add tokio-util CancellationToken to HTTP handlers to support graceful shutdown (stop accepting new requests while letting in-flight requests finish).
- Introduce configurable upstream connect timeout (DEFAULT_CONNECT_TIMEOUT) and return 504 Gateway Timeout on connect timeouts to avoid hanging connections.
- Add WebSocket watchdog with inactivity and max-lifetime checks, activity tracking via AtomicU64, and cancellation-driven tunnel aborts.
- Add ConnectionGuard RAII in passthrough listener to ensure metrics.connection_closed() is called on all exit paths and disarm the guard when handing off to the HTTP proxy.
- Expose HttpProxyService::with_connect_timeout and wire connection timeout from ConnectionConfig into listeners.
- Add tokio-util workspace dependency (CancellationToken) and related code changes across rustproxy-http and rustproxy-passthrough.
## 2026-02-13 - 24.0.0 - BREAKING CHANGE(smart-proxy)
move certificate persistence to an in-memory store and introduce consumer-managed certStore API; add default self-signed fallback cert and change ACME account handling