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23 Commits

Author SHA1 Message Date
ginuerzh 722dde5cfc fix(handler/forward): split readTimeout from pipe idleTimeout to prevent 15s download abort 
The readTimeout field (default 15s) was being applied via xnet.Pipe to both
directions of a bidirectional proxy connection. During asymmetric transfers
(e.g. HTTP file download), the direction reading from the tunnel sees no
data after the initial request is forwarded, causing SetReadDeadline to fire
after 15s and abort the entire transfer.

Fix: add a separate idleTimeout field (default 0=disabled) to the metadata
structs in both forward/local and forward/remote handlers, and switch
xnet.Pipe to use idleTimeout instead of readTimeout. The readTimeout field
now only applies to the initial protocol sniffing/handshake phase.

Also document readTimeout vs idleTimeout semantics across all 24 locations
in the x/ module where these timeouts appear:
- readTimeout: handshake sniffing deadline (handlers), upstream response
  header timeout (http.Transport), or transport-level read deadline
- idleTimeout: idle read deadline per Pipe direction (0=disabled)
- ReadTimeout on Sniffer/SnifferBuilder: upstream response header/TLS
  handshake read timeout during sniffing
 2026-05-31 17:05:21 +08:00
ginuerzh c246a1d4fa feat(handler/http,http2): support comma-separated hostnames in probeResistance knock 
Knock previously accepted a single hostname. Now it accepts multiple
comma-separated hostnames; probe resistance is bypassed if the request
hostname matches any entry in the list. Matching is case-insensitive
and whitespace around entries is trimmed.
 2026-05-28 23:20:27 +08:00
ginuerzh 3246b39c93 refactor(handler/http): split handler monolith into 7 focused files with 96 unit tests 
Extract the 1024-line handler.go into concern-focused files:
  util.go       — 5 pure functions (decodeServerName, basicProxyAuth, upgradeType,
                  normalizeHostPort, buildConnectResponse) — 100% coverage
  auth.go       — authenticate (5 probe-resistance strategies + knock) + checkRateLimit
  connect.go    — handleConnect, sniffAndHandle, dial, setupTrafficLimiter
  proxy.go      — handleProxy keep-alive loop, proxyRoundTrip, handleUpgradeResponse
  websocket.go  — WebSocket frame sniffing/recording with rate-limited sampling
  udp.go        — UDP-over-HTTP relay with SOCKS5 tunnel
  metadata.go   — metadata struct, parseMetadata, probeResistance type

Key improvements:
- Transport injection (http.RoundTripper field) enables testing without real network
- Nil Router guards in dial, handleUDP, and nil Addr guard in checkRateLimit
- Pure functions converted from methods to package-level (no state dependency)
- setupTrafficLimiter returns cleanup closure to preserve defer lifetime
- handleConnect accepts caller's resp for correct recorder status capture
- Comprehensive package doc with full request-flow documentation

96 tests: 100% on pure functions, 86% on metadata parsing, 55% overall (integration
paths verified by e2e tests).
 2026-05-28 23:06:37 +08:00
Andrew Beresford 290e9c37d5 Make pipe read timeout configurable via idleTimeout metadata 
The 30s hardcoded readTimeout in Pipe() caused all CONNECT tunnel
connections to be hard-closed after 30s of inactivity, breaking
WebSocket and long-polling connections through the proxy.

Pipe() now accepts a WithReadTimeout(d) option. When d is 0 (the
default) no read deadline is set, relying on TCP keepalives or context
cancellation to detect dead connections instead.

The HTTP handler exposes this as the idleTimeout metadata key.

Fixes: https://github.com/go-gost/x/issues/91
 2026-05-08 11:31:53 +01:00
ginuerzh a5309eee97 add buffer size option for udp connection 2025-07-30 21:40:53 +08:00
ginuerzh afcf4a5252 parse real client IP 2025-07-15 19:59:10 +08:00
ginuerzh 379d9a73ad service: add limiter.scope option 2025-01-20 23:22:58 +08:00
ginuerzh 06d993023f add traffic reset for stats 2024-12-24 20:11:22 +08:00
ginuerzh 79b6b9138e add limiterRefreshInterval option for limiter 2024-11-14 20:16:09 +08:00
ginuerzh a12870e766 add compression flag option for http request 2024-11-02 20:41:23 +08:00
ginuerzh 6b932e35bf sniffing websocket frame 2024-10-19 19:36:06 +08:00
ginuerzh a0cbee8817 use http.transport for non-connect http tunnel 2024-10-17 21:57:20 +08:00
ginuerzh 9a56c8fba3 add keepalive option for http handler 2024-10-10 16:52:01 +08:00
ginuerzh c42a44abb6 add sniffer utility 2024-10-02 22:51:23 +08:00
ginuerzh 3c8add4b82 add traffic sniffing for handler 2024-09-27 15:55:28 +08:00
ginuerzh 74dc03bd66 fix http proxy response 2024-06-25 22:09:00 +08:00
ginuerzh 6d819a0c06 add observePeriod option for observer 2024-06-13 21:22:29 +08:00
ginuerzh 3e35a7b761 add authBasicRealm metadata for HTTP/HTTP2 handler 2023-01-31 13:42:55 +08:00
ginuerzh a1255e52d8 fix proxy protocol 2022-09-28 11:47:56 +08:00
ginuerzh 09dbdbb03c add backup filter 2022-09-02 11:52:44 +08:00
ginuerzh d7b56871a9 customize random-generated certificate information 2022-07-27 16:58:49 +08:00
ginuerzh dca2a79c54 update sni handler 2022-04-14 14:53:13 +08:00
ginuerzh a3346ad246 add pkgs from core 2022-04-04 12:44:35 +08:00