diff --git a/go.mod b/go.mod index 73e892fd9..2d136f371 100644 --- a/go.mod +++ b/go.mod @@ -38,7 +38,7 @@ require ( github.com/square/certstrap v1.2.0 // indirect github.com/ulikunitz/xz v0.5.10 // indirect github.com/xi2/xz v0.0.0-20171230120015-48954b6210f8 // indirect - golang.org/x/net v0.15.0 // indirect + golang.org/x/net v0.17.0 // indirect golang.org/x/sys v0.13.0 // indirect golang.org/x/text v0.13.0 // indirect golang.org/x/tools v0.12.0 // indirect diff --git a/go.sum b/go.sum index ecd00f1d2..107f014bd 100644 --- a/go.sum +++ b/go.sum @@ -128,8 +128,8 @@ golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLL golang.org/x/net v0.0.0-20200520004742-59133d7f0dd7/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A= golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU= golang.org/x/net v0.0.0-20210428140749-89ef3d95e781/go.mod h1:OJAsFXCWl8Ukc7SiCT/9KSuxbyM7479/AVlXFRxuMCk= -golang.org/x/net v0.15.0 h1:ugBLEUaxABaB5AJqW9enI0ACdci2RUd4eP51NTBvuJ8= -golang.org/x/net v0.15.0/go.mod h1:idbUs1IY1+zTqbi8yxTbhexhEEk5ur9LInksu6HrEpk= +golang.org/x/net v0.17.0 h1:pVaXccu2ozPjCXewfr1S7xza/zcXTity9cCdXQYSjIM= +golang.org/x/net v0.17.0/go.mod h1:NxSsAGuq816PNPmqtQdLE42eU2Fs7NoRIZrHJAlaCOE= golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= diff --git a/vendor/golang.org/x/net/http2/server.go b/vendor/golang.org/x/net/http2/server.go index 6d5e00887..02c88b6b3 100644 --- a/vendor/golang.org/x/net/http2/server.go +++ b/vendor/golang.org/x/net/http2/server.go @@ -581,9 +581,11 @@ type serverConn struct { advMaxStreams uint32 // our SETTINGS_MAX_CONCURRENT_STREAMS advertised the client curClientStreams uint32 // number of open streams initiated by the client curPushedStreams uint32 // number of open streams initiated by server push + curHandlers uint32 // number of running handler goroutines maxClientStreamID uint32 // max ever seen from client (odd), or 0 if there have been no client requests maxPushPromiseID uint32 // ID of the last push promise (even), or 0 if there have been no pushes streams map[uint32]*stream + unstartedHandlers []unstartedHandler initialStreamSendWindowSize int32 maxFrameSize int32 peerMaxHeaderListSize uint32 // zero means unknown (default) @@ -981,6 +983,8 @@ func (sc *serverConn) serve() { return case gracefulShutdownMsg: sc.startGracefulShutdownInternal() + case handlerDoneMsg: + sc.handlerDone() default: panic("unknown timer") } @@ -1020,6 +1024,7 @@ var ( idleTimerMsg = new(serverMessage) shutdownTimerMsg = new(serverMessage) gracefulShutdownMsg = new(serverMessage) + handlerDoneMsg = new(serverMessage) ) func (sc *serverConn) onSettingsTimer() { sc.sendServeMsg(settingsTimerMsg) } @@ -1892,9 +1897,11 @@ func (st *stream) copyTrailersToHandlerRequest() { // onReadTimeout is run on its own goroutine (from time.AfterFunc) // when the stream's ReadTimeout has fired. func (st *stream) onReadTimeout() { - // Wrap the ErrDeadlineExceeded to avoid callers depending on us - // returning the bare error. - st.body.CloseWithError(fmt.Errorf("%w", os.ErrDeadlineExceeded)) + if st.body != nil { + // Wrap the ErrDeadlineExceeded to avoid callers depending on us + // returning the bare error. + st.body.CloseWithError(fmt.Errorf("%w", os.ErrDeadlineExceeded)) + } } // onWriteTimeout is run on its own goroutine (from time.AfterFunc) @@ -2012,13 +2019,10 @@ func (sc *serverConn) processHeaders(f *MetaHeadersFrame) error { // (in Go 1.8), though. That's a more sane option anyway. if sc.hs.ReadTimeout != 0 { sc.conn.SetReadDeadline(time.Time{}) - if st.body != nil { - st.readDeadline = time.AfterFunc(sc.hs.ReadTimeout, st.onReadTimeout) - } + st.readDeadline = time.AfterFunc(sc.hs.ReadTimeout, st.onReadTimeout) } - go sc.runHandler(rw, req, handler) - return nil + return sc.scheduleHandler(id, rw, req, handler) } func (sc *serverConn) upgradeRequest(req *http.Request) { @@ -2038,6 +2042,10 @@ func (sc *serverConn) upgradeRequest(req *http.Request) { sc.conn.SetReadDeadline(time.Time{}) } + // This is the first request on the connection, + // so start the handler directly rather than going + // through scheduleHandler. + sc.curHandlers++ go sc.runHandler(rw, req, sc.handler.ServeHTTP) } @@ -2278,8 +2286,62 @@ func (sc *serverConn) newResponseWriter(st *stream, req *http.Request) *response return &responseWriter{rws: rws} } +type unstartedHandler struct { + streamID uint32 + rw *responseWriter + req *http.Request + handler func(http.ResponseWriter, *http.Request) +} + +// scheduleHandler starts a handler goroutine, +// or schedules one to start as soon as an existing handler finishes. +func (sc *serverConn) scheduleHandler(streamID uint32, rw *responseWriter, req *http.Request, handler func(http.ResponseWriter, *http.Request)) error { + sc.serveG.check() + maxHandlers := sc.advMaxStreams + if sc.curHandlers < maxHandlers { + sc.curHandlers++ + go sc.runHandler(rw, req, handler) + return nil + } + if len(sc.unstartedHandlers) > int(4*sc.advMaxStreams) { + return sc.countError("too_many_early_resets", ConnectionError(ErrCodeEnhanceYourCalm)) + } + sc.unstartedHandlers = append(sc.unstartedHandlers, unstartedHandler{ + streamID: streamID, + rw: rw, + req: req, + handler: handler, + }) + return nil +} + +func (sc *serverConn) handlerDone() { + sc.serveG.check() + sc.curHandlers-- + i := 0 + maxHandlers := sc.advMaxStreams + for ; i < len(sc.unstartedHandlers); i++ { + u := sc.unstartedHandlers[i] + if sc.streams[u.streamID] == nil { + // This stream was reset before its goroutine had a chance to start. + continue + } + if sc.curHandlers >= maxHandlers { + break + } + sc.curHandlers++ + go sc.runHandler(u.rw, u.req, u.handler) + sc.unstartedHandlers[i] = unstartedHandler{} // don't retain references + } + sc.unstartedHandlers = sc.unstartedHandlers[i:] + if len(sc.unstartedHandlers) == 0 { + sc.unstartedHandlers = nil + } +} + // Run on its own goroutine. func (sc *serverConn) runHandler(rw *responseWriter, req *http.Request, handler func(http.ResponseWriter, *http.Request)) { + defer sc.sendServeMsg(handlerDoneMsg) didPanic := true defer func() { rw.rws.stream.cancelCtx() diff --git a/vendor/modules.txt b/vendor/modules.txt index 38980aec3..de418f92b 100644 --- a/vendor/modules.txt +++ b/vendor/modules.txt @@ -185,7 +185,7 @@ golang.org/x/crypto/internal/alias golang.org/x/crypto/internal/poly1305 golang.org/x/crypto/ssh golang.org/x/crypto/ssh/internal/bcrypt_pbkdf -# golang.org/x/net v0.15.0 +# golang.org/x/net v0.17.0 ## explicit; go 1.17 golang.org/x/net/context golang.org/x/net/html