diff options
Diffstat (limited to 'vendor/golang.org/x/net/http2')
-rw-r--r-- | vendor/golang.org/x/net/http2/frame.go | 22 | ||||
-rw-r--r-- | vendor/golang.org/x/net/http2/h2c/h2c.go | 11 | ||||
-rw-r--r-- | vendor/golang.org/x/net/http2/hpack/encode.go | 2 | ||||
-rw-r--r-- | vendor/golang.org/x/net/http2/hpack/hpack.go | 16 | ||||
-rw-r--r-- | vendor/golang.org/x/net/http2/http2.go | 8 | ||||
-rw-r--r-- | vendor/golang.org/x/net/http2/server.go | 60 | ||||
-rw-r--r-- | vendor/golang.org/x/net/http2/transport.go | 120 |
7 files changed, 151 insertions, 88 deletions
diff --git a/vendor/golang.org/x/net/http2/frame.go b/vendor/golang.org/x/net/http2/frame.go index 0178647e..184ac45f 100644 --- a/vendor/golang.org/x/net/http2/frame.go +++ b/vendor/golang.org/x/net/http2/frame.go @@ -23,7 +23,7 @@ const frameHeaderLen = 9 var padZeros = make([]byte, 255) // zeros for padding // A FrameType is a registered frame type as defined in -// http://http2.github.io/http2-spec/#rfc.section.11.2 +// https://httpwg.org/specs/rfc7540.html#rfc.section.11.2 type FrameType uint8 const ( @@ -146,7 +146,7 @@ func typeFrameParser(t FrameType) frameParser { // A FrameHeader is the 9 byte header of all HTTP/2 frames. // -// See http://http2.github.io/http2-spec/#FrameHeader +// See https://httpwg.org/specs/rfc7540.html#FrameHeader type FrameHeader struct { valid bool // caller can access []byte fields in the Frame @@ -575,7 +575,7 @@ func (fr *Framer) checkFrameOrder(f Frame) error { // A DataFrame conveys arbitrary, variable-length sequences of octets // associated with a stream. -// See http://http2.github.io/http2-spec/#rfc.section.6.1 +// See https://httpwg.org/specs/rfc7540.html#rfc.section.6.1 type DataFrame struct { FrameHeader data []byte @@ -698,7 +698,7 @@ func (f *Framer) WriteDataPadded(streamID uint32, endStream bool, data, pad []by // endpoints communicate, such as preferences and constraints on peer // behavior. // -// See http://http2.github.io/http2-spec/#SETTINGS +// See https://httpwg.org/specs/rfc7540.html#SETTINGS type SettingsFrame struct { FrameHeader p []byte @@ -837,7 +837,7 @@ func (f *Framer) WriteSettingsAck() error { // A PingFrame is a mechanism for measuring a minimal round trip time // from the sender, as well as determining whether an idle connection // is still functional. -// See http://http2.github.io/http2-spec/#rfc.section.6.7 +// See https://httpwg.org/specs/rfc7540.html#rfc.section.6.7 type PingFrame struct { FrameHeader Data [8]byte @@ -870,7 +870,7 @@ func (f *Framer) WritePing(ack bool, data [8]byte) error { } // A GoAwayFrame informs the remote peer to stop creating streams on this connection. -// See http://http2.github.io/http2-spec/#rfc.section.6.8 +// See https://httpwg.org/specs/rfc7540.html#rfc.section.6.8 type GoAwayFrame struct { FrameHeader LastStreamID uint32 @@ -934,7 +934,7 @@ func parseUnknownFrame(_ *frameCache, fh FrameHeader, countError func(string), p } // A WindowUpdateFrame is used to implement flow control. -// See http://http2.github.io/http2-spec/#rfc.section.6.9 +// See https://httpwg.org/specs/rfc7540.html#rfc.section.6.9 type WindowUpdateFrame struct { FrameHeader Increment uint32 // never read with high bit set @@ -1123,7 +1123,7 @@ func (f *Framer) WriteHeaders(p HeadersFrameParam) error { } // A PriorityFrame specifies the sender-advised priority of a stream. -// See http://http2.github.io/http2-spec/#rfc.section.6.3 +// See https://httpwg.org/specs/rfc7540.html#rfc.section.6.3 type PriorityFrame struct { FrameHeader PriorityParam @@ -1193,7 +1193,7 @@ func (f *Framer) WritePriority(streamID uint32, p PriorityParam) error { } // A RSTStreamFrame allows for abnormal termination of a stream. -// See http://http2.github.io/http2-spec/#rfc.section.6.4 +// See https://httpwg.org/specs/rfc7540.html#rfc.section.6.4 type RSTStreamFrame struct { FrameHeader ErrCode ErrCode @@ -1225,7 +1225,7 @@ func (f *Framer) WriteRSTStream(streamID uint32, code ErrCode) error { } // A ContinuationFrame is used to continue a sequence of header block fragments. -// See http://http2.github.io/http2-spec/#rfc.section.6.10 +// See https://httpwg.org/specs/rfc7540.html#rfc.section.6.10 type ContinuationFrame struct { FrameHeader headerFragBuf []byte @@ -1266,7 +1266,7 @@ func (f *Framer) WriteContinuation(streamID uint32, endHeaders bool, headerBlock } // A PushPromiseFrame is used to initiate a server stream. -// See http://http2.github.io/http2-spec/#rfc.section.6.6 +// See https://httpwg.org/specs/rfc7540.html#rfc.section.6.6 type PushPromiseFrame struct { FrameHeader PromiseID uint32 diff --git a/vendor/golang.org/x/net/http2/h2c/h2c.go b/vendor/golang.org/x/net/http2/h2c/h2c.go index c3df711d..2b77ffda 100644 --- a/vendor/golang.org/x/net/http2/h2c/h2c.go +++ b/vendor/golang.org/x/net/http2/h2c/h2c.go @@ -70,6 +70,15 @@ func NewHandler(h http.Handler, s *http2.Server) http.Handler { } } +// extractServer extracts existing http.Server instance from http.Request or create an empty http.Server +func extractServer(r *http.Request) *http.Server { + server, ok := r.Context().Value(http.ServerContextKey).(*http.Server) + if ok { + return server + } + return new(http.Server) +} + // ServeHTTP implement the h2c support that is enabled by h2c.GetH2CHandler. func (s h2cHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) { // Handle h2c with prior knowledge (RFC 7540 Section 3.4) @@ -87,6 +96,7 @@ func (s h2cHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) { defer conn.Close() s.s.ServeConn(conn, &http2.ServeConnOpts{ Context: r.Context(), + BaseConfig: extractServer(r), Handler: s.Handler, SawClientPreface: true, }) @@ -104,6 +114,7 @@ func (s h2cHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) { defer conn.Close() s.s.ServeConn(conn, &http2.ServeConnOpts{ Context: r.Context(), + BaseConfig: extractServer(r), Handler: s.Handler, UpgradeRequest: r, Settings: settings, diff --git a/vendor/golang.org/x/net/http2/hpack/encode.go b/vendor/golang.org/x/net/http2/hpack/encode.go index 97f17831..6886dc16 100644 --- a/vendor/golang.org/x/net/http2/hpack/encode.go +++ b/vendor/golang.org/x/net/http2/hpack/encode.go @@ -191,7 +191,7 @@ func appendTableSize(dst []byte, v uint32) []byte { // bit prefix, to dst and returns the extended buffer. // // See -// http://http2.github.io/http2-spec/compression.html#integer.representation +// https://httpwg.org/specs/rfc7541.html#integer.representation func appendVarInt(dst []byte, n byte, i uint64) []byte { k := uint64((1 << n) - 1) if i < k { diff --git a/vendor/golang.org/x/net/http2/hpack/hpack.go b/vendor/golang.org/x/net/http2/hpack/hpack.go index 85f18a2b..ebdfbee9 100644 --- a/vendor/golang.org/x/net/http2/hpack/hpack.go +++ b/vendor/golang.org/x/net/http2/hpack/hpack.go @@ -59,7 +59,7 @@ func (hf HeaderField) String() string { // Size returns the size of an entry per RFC 7541 section 4.1. func (hf HeaderField) Size() uint32 { - // http://http2.github.io/http2-spec/compression.html#rfc.section.4.1 + // https://httpwg.org/specs/rfc7541.html#rfc.section.4.1 // "The size of the dynamic table is the sum of the size of // its entries. The size of an entry is the sum of its name's // length in octets (as defined in Section 5.2), its value's @@ -158,7 +158,7 @@ func (d *Decoder) SetAllowedMaxDynamicTableSize(v uint32) { } type dynamicTable struct { - // http://http2.github.io/http2-spec/compression.html#rfc.section.2.3.2 + // https://httpwg.org/specs/rfc7541.html#rfc.section.2.3.2 table headerFieldTable size uint32 // in bytes maxSize uint32 // current maxSize @@ -307,27 +307,27 @@ func (d *Decoder) parseHeaderFieldRepr() error { case b&128 != 0: // Indexed representation. // High bit set? - // http://http2.github.io/http2-spec/compression.html#rfc.section.6.1 + // https://httpwg.org/specs/rfc7541.html#rfc.section.6.1 return d.parseFieldIndexed() case b&192 == 64: // 6.2.1 Literal Header Field with Incremental Indexing // 0b10xxxxxx: top two bits are 10 - // http://http2.github.io/http2-spec/compression.html#rfc.section.6.2.1 + // https://httpwg.org/specs/rfc7541.html#rfc.section.6.2.1 return d.parseFieldLiteral(6, indexedTrue) case b&240 == 0: // 6.2.2 Literal Header Field without Indexing // 0b0000xxxx: top four bits are 0000 - // http://http2.github.io/http2-spec/compression.html#rfc.section.6.2.2 + // https://httpwg.org/specs/rfc7541.html#rfc.section.6.2.2 return d.parseFieldLiteral(4, indexedFalse) case b&240 == 16: // 6.2.3 Literal Header Field never Indexed // 0b0001xxxx: top four bits are 0001 - // http://http2.github.io/http2-spec/compression.html#rfc.section.6.2.3 + // https://httpwg.org/specs/rfc7541.html#rfc.section.6.2.3 return d.parseFieldLiteral(4, indexedNever) case b&224 == 32: // 6.3 Dynamic Table Size Update // Top three bits are '001'. - // http://http2.github.io/http2-spec/compression.html#rfc.section.6.3 + // https://httpwg.org/specs/rfc7541.html#rfc.section.6.3 return d.parseDynamicTableSizeUpdate() } @@ -420,7 +420,7 @@ var errVarintOverflow = DecodingError{errors.New("varint integer overflow")} // readVarInt reads an unsigned variable length integer off the // beginning of p. n is the parameter as described in -// http://http2.github.io/http2-spec/compression.html#rfc.section.5.1. +// https://httpwg.org/specs/rfc7541.html#rfc.section.5.1. // // n must always be between 1 and 8. // diff --git a/vendor/golang.org/x/net/http2/http2.go b/vendor/golang.org/x/net/http2/http2.go index 479ba4b2..6f2df281 100644 --- a/vendor/golang.org/x/net/http2/http2.go +++ b/vendor/golang.org/x/net/http2/http2.go @@ -55,14 +55,14 @@ const ( ClientPreface = "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n" // SETTINGS_MAX_FRAME_SIZE default - // http://http2.github.io/http2-spec/#rfc.section.6.5.2 + // https://httpwg.org/specs/rfc7540.html#rfc.section.6.5.2 initialMaxFrameSize = 16384 // NextProtoTLS is the NPN/ALPN protocol negotiated during // HTTP/2's TLS setup. NextProtoTLS = "h2" - // http://http2.github.io/http2-spec/#SettingValues + // https://httpwg.org/specs/rfc7540.html#SettingValues initialHeaderTableSize = 4096 initialWindowSize = 65535 // 6.9.2 Initial Flow Control Window Size @@ -111,7 +111,7 @@ func (st streamState) String() string { // Setting is a setting parameter: which setting it is, and its value. type Setting struct { // ID is which setting is being set. - // See http://http2.github.io/http2-spec/#SettingValues + // See https://httpwg.org/specs/rfc7540.html#SettingFormat ID SettingID // Val is the value. @@ -143,7 +143,7 @@ func (s Setting) Valid() error { } // A SettingID is an HTTP/2 setting as defined in -// http://http2.github.io/http2-spec/#iana-settings +// https://httpwg.org/specs/rfc7540.html#iana-settings type SettingID uint16 const ( diff --git a/vendor/golang.org/x/net/http2/server.go b/vendor/golang.org/x/net/http2/server.go index 47524a61..43cc2a34 100644 --- a/vendor/golang.org/x/net/http2/server.go +++ b/vendor/golang.org/x/net/http2/server.go @@ -143,7 +143,7 @@ type Server struct { } func (s *Server) initialConnRecvWindowSize() int32 { - if s.MaxUploadBufferPerConnection > initialWindowSize { + if s.MaxUploadBufferPerConnection >= initialWindowSize { return s.MaxUploadBufferPerConnection } return 1 << 20 @@ -869,9 +869,7 @@ func (sc *serverConn) serve() { // Each connection starts with initialWindowSize inflow tokens. // If a higher value is configured, we add more tokens. - if diff := sc.srv.initialConnRecvWindowSize() - initialWindowSize; diff > 0 { - sc.sendWindowUpdate(nil, int(diff)) - } + sc.sendWindowUpdate(nil) if err := sc.readPreface(); err != nil { sc.condlogf(err, "http2: server: error reading preface from client %v: %v", sc.conn.RemoteAddr(), err) @@ -1371,6 +1369,9 @@ func (sc *serverConn) startGracefulShutdownInternal() { func (sc *serverConn) goAway(code ErrCode) { sc.serveG.check() if sc.inGoAway { + if sc.goAwayCode == ErrCodeNo { + sc.goAwayCode = code + } return } sc.inGoAway = true @@ -1585,7 +1586,7 @@ func (sc *serverConn) closeStream(st *stream, err error) { if p := st.body; p != nil { // Return any buffered unread bytes worth of conn-level flow control. // See golang.org/issue/16481 - sc.sendWindowUpdate(nil, p.Len()) + sc.sendWindowUpdate(nil) p.CloseWithError(err) } @@ -1733,7 +1734,7 @@ func (sc *serverConn) processData(f *DataFrame) error { // sendWindowUpdate, which also schedules sending the // frames. sc.inflow.take(int32(f.Length)) - sc.sendWindowUpdate(nil, int(f.Length)) // conn-level + sc.sendWindowUpdate(nil) // conn-level if st != nil && st.resetQueued { // Already have a stream error in flight. Don't send another. @@ -1747,6 +1748,12 @@ func (sc *serverConn) processData(f *DataFrame) error { // Sender sending more than they'd declared? if st.declBodyBytes != -1 && st.bodyBytes+int64(len(data)) > st.declBodyBytes { + if sc.inflow.available() < int32(f.Length) { + return sc.countError("data_flow", streamError(id, ErrCodeFlowControl)) + } + sc.inflow.take(int32(f.Length)) + sc.sendWindowUpdate(nil) // conn-level + st.body.CloseWithError(fmt.Errorf("sender tried to send more than declared Content-Length of %d bytes", st.declBodyBytes)) // RFC 7540, sec 8.1.2.6: A request or response is also malformed if the // value of a content-length header field does not equal the sum of the @@ -1763,7 +1770,7 @@ func (sc *serverConn) processData(f *DataFrame) error { if len(data) > 0 { wrote, err := st.body.Write(data) if err != nil { - sc.sendWindowUpdate(nil, int(f.Length)-wrote) + sc.sendWindowUpdate32(nil, int32(f.Length)-int32(wrote)) return sc.countError("body_write_err", streamError(id, ErrCodeStreamClosed)) } if wrote != len(data) { @@ -2090,12 +2097,6 @@ func (sc *serverConn) newWriterAndRequest(st *stream, f *MetaHeadersFrame) (*res return nil, nil, sc.countError("bad_path_method", streamError(f.StreamID, ErrCodeProtocol)) } - bodyOpen := !f.StreamEnded() - if rp.method == "HEAD" && bodyOpen { - // HEAD requests can't have bodies - return nil, nil, sc.countError("head_body", streamError(f.StreamID, ErrCodeProtocol)) - } - rp.header = make(http.Header) for _, hf := range f.RegularFields() { rp.header.Add(sc.canonicalHeader(hf.Name), hf.Value) @@ -2108,6 +2109,7 @@ func (sc *serverConn) newWriterAndRequest(st *stream, f *MetaHeadersFrame) (*res if err != nil { return nil, nil, err } + bodyOpen := !f.StreamEnded() if bodyOpen { if vv, ok := rp.header["Content-Length"]; ok { if cl, err := strconv.ParseUint(vv[0], 10, 63); err == nil { @@ -2223,6 +2225,9 @@ func (sc *serverConn) runHandler(rw *responseWriter, req *http.Request, handler didPanic := true defer func() { rw.rws.stream.cancelCtx() + if req.MultipartForm != nil { + req.MultipartForm.RemoveAll() + } if didPanic { e := recover() sc.writeFrameFromHandler(FrameWriteRequest{ @@ -2317,17 +2322,32 @@ func (sc *serverConn) noteBodyReadFromHandler(st *stream, n int, err error) { func (sc *serverConn) noteBodyRead(st *stream, n int) { sc.serveG.check() - sc.sendWindowUpdate(nil, n) // conn-level + sc.sendWindowUpdate(nil) // conn-level if st.state != stateHalfClosedRemote && st.state != stateClosed { // Don't send this WINDOW_UPDATE if the stream is closed // remotely. - sc.sendWindowUpdate(st, n) + sc.sendWindowUpdate(st) } } // st may be nil for conn-level -func (sc *serverConn) sendWindowUpdate(st *stream, n int) { +func (sc *serverConn) sendWindowUpdate(st *stream) { sc.serveG.check() + + var n int32 + if st == nil { + if avail, windowSize := sc.inflow.available(), sc.srv.initialConnRecvWindowSize(); avail > windowSize/2 { + return + } else { + n = windowSize - avail + } + } else { + if avail, windowSize := st.inflow.available(), sc.srv.initialStreamRecvWindowSize(); avail > windowSize/2 { + return + } else { + n = windowSize - avail + } + } // "The legal range for the increment to the flow control // window is 1 to 2^31-1 (2,147,483,647) octets." // A Go Read call on 64-bit machines could in theory read @@ -2493,6 +2513,10 @@ func (rws *responseWriterState) writeChunk(p []byte) (n int, err error) { rws.writeHeader(200) } + if rws.handlerDone { + rws.promoteUndeclaredTrailers() + } + isHeadResp := rws.req.Method == "HEAD" if !rws.sentHeader { rws.sentHeader = true @@ -2564,10 +2588,6 @@ func (rws *responseWriterState) writeChunk(p []byte) (n int, err error) { return 0, nil } - if rws.handlerDone { - rws.promoteUndeclaredTrailers() - } - // only send trailers if they have actually been defined by the // server handler. hasNonemptyTrailers := rws.hasNonemptyTrailers() diff --git a/vendor/golang.org/x/net/http2/transport.go b/vendor/golang.org/x/net/http2/transport.go index 4ded4dfd..c5d005bb 100644 --- a/vendor/golang.org/x/net/http2/transport.go +++ b/vendor/golang.org/x/net/http2/transport.go @@ -67,13 +67,23 @@ const ( // A Transport internally caches connections to servers. It is safe // for concurrent use by multiple goroutines. type Transport struct { - // DialTLS specifies an optional dial function for creating - // TLS connections for requests. + // DialTLSContext specifies an optional dial function with context for + // creating TLS connections for requests. // - // If DialTLS is nil, tls.Dial is used. + // If DialTLSContext and DialTLS is nil, tls.Dial is used. // // If the returned net.Conn has a ConnectionState method like tls.Conn, // it will be used to set http.Response.TLS. + DialTLSContext func(ctx context.Context, network, addr string, cfg *tls.Config) (net.Conn, error) + + // DialTLS specifies an optional dial function for creating + // TLS connections for requests. + // + // If DialTLSContext and DialTLS is nil, tls.Dial is used. + // + // Deprecated: Use DialTLSContext instead, which allows the transport + // to cancel dials as soon as they are no longer needed. + // If both are set, DialTLSContext takes priority. DialTLS func(network, addr string, cfg *tls.Config) (net.Conn, error) // TLSClientConfig specifies the TLS configuration to use with @@ -248,7 +258,8 @@ func (t *Transport) initConnPool() { // HTTP/2 server. type ClientConn struct { t *Transport - tconn net.Conn // usually *tls.Conn, except specialized impls + tconn net.Conn // usually *tls.Conn, except specialized impls + tconnClosed bool tlsState *tls.ConnectionState // nil only for specialized impls reused uint32 // whether conn is being reused; atomic singleUse bool // whether being used for a single http.Request @@ -334,8 +345,8 @@ type clientStream struct { readErr error // sticky read error; owned by transportResponseBody.Read reqBody io.ReadCloser - reqBodyContentLength int64 // -1 means unknown - reqBodyClosed bool // body has been closed; guarded by cc.mu + reqBodyContentLength int64 // -1 means unknown + reqBodyClosed chan struct{} // guarded by cc.mu; non-nil on Close, closed when done // owned by writeRequest: sentEndStream bool // sent an END_STREAM flag to the peer @@ -375,9 +386,8 @@ func (cs *clientStream) abortStreamLocked(err error) { cs.abortErr = err close(cs.abort) }) - if cs.reqBody != nil && !cs.reqBodyClosed { - cs.reqBody.Close() - cs.reqBodyClosed = true + if cs.reqBody != nil { + cs.closeReqBodyLocked() } // TODO(dneil): Clean up tests where cs.cc.cond is nil. if cs.cc.cond != nil { @@ -390,13 +400,24 @@ func (cs *clientStream) abortRequestBodyWrite() { cc := cs.cc cc.mu.Lock() defer cc.mu.Unlock() - if cs.reqBody != nil && !cs.reqBodyClosed { - cs.reqBody.Close() - cs.reqBodyClosed = true + if cs.reqBody != nil && cs.reqBodyClosed == nil { + cs.closeReqBodyLocked() cc.cond.Broadcast() } } +func (cs *clientStream) closeReqBodyLocked() { + if cs.reqBodyClosed != nil { + return + } + cs.reqBodyClosed = make(chan struct{}) + reqBodyClosed := cs.reqBodyClosed + go func() { + cs.reqBody.Close() + close(reqBodyClosed) + }() +} + type stickyErrWriter struct { conn net.Conn timeout time.Duration @@ -592,7 +613,7 @@ func (t *Transport) dialClientConn(ctx context.Context, addr string, singleUse b if err != nil { return nil, err } - tconn, err := t.dialTLS(ctx)("tcp", addr, t.newTLSConfig(host)) + tconn, err := t.dialTLS(ctx, "tcp", addr, t.newTLSConfig(host)) if err != nil { return nil, err } @@ -613,24 +634,25 @@ func (t *Transport) newTLSConfig(host string) *tls.Config { return cfg } -func (t *Transport) dialTLS(ctx context.Context) func(string, string, *tls.Config) (net.Conn, error) { - if t.DialTLS != nil { - return t.DialTLS +func (t *Transport) dialTLS(ctx context.Context, network, addr string, tlsCfg *tls.Config) (net.Conn, error) { + if t.DialTLSContext != nil { + return t.DialTLSContext(ctx, network, addr, tlsCfg) + } else if t.DialTLS != nil { + return t.DialTLS(network, addr, tlsCfg) } - return func(network, addr string, cfg *tls.Config) (net.Conn, error) { - tlsCn, err := t.dialTLSWithContext(ctx, network, addr, cfg) - if err != nil { - return nil, err - } - state := tlsCn.ConnectionState() - if p := state.NegotiatedProtocol; p != NextProtoTLS { - return nil, fmt.Errorf("http2: unexpected ALPN protocol %q; want %q", p, NextProtoTLS) - } - if !state.NegotiatedProtocolIsMutual { - return nil, errors.New("http2: could not negotiate protocol mutually") - } - return tlsCn, nil + + tlsCn, err := t.dialTLSWithContext(ctx, network, addr, tlsCfg) + if err != nil { + return nil, err + } + state := tlsCn.ConnectionState() + if p := state.NegotiatedProtocol; p != NextProtoTLS { + return nil, fmt.Errorf("http2: unexpected ALPN protocol %q; want %q", p, NextProtoTLS) } + if !state.NegotiatedProtocolIsMutual { + return nil, errors.New("http2: could not negotiate protocol mutually") + } + return tlsCn, nil } // disableKeepAlives reports whether connections should be closed as @@ -910,10 +932,10 @@ func (cc *ClientConn) onIdleTimeout() { cc.closeIfIdle() } -func (cc *ClientConn) closeConn() error { +func (cc *ClientConn) closeConn() { t := time.AfterFunc(250*time.Millisecond, cc.forceCloseConn) defer t.Stop() - return cc.tconn.Close() + cc.tconn.Close() } // A tls.Conn.Close can hang for a long time if the peer is unresponsive. @@ -979,7 +1001,8 @@ func (cc *ClientConn) Shutdown(ctx context.Context) error { shutdownEnterWaitStateHook() select { case <-done: - return cc.closeConn() + cc.closeConn() + return nil case <-ctx.Done(): cc.mu.Lock() // Free the goroutine above @@ -1016,7 +1039,7 @@ func (cc *ClientConn) sendGoAway() error { // closes the client connection immediately. In-flight requests are interrupted. // err is sent to streams. -func (cc *ClientConn) closeForError(err error) error { +func (cc *ClientConn) closeForError(err error) { cc.mu.Lock() cc.closed = true for _, cs := range cc.streams { @@ -1024,7 +1047,7 @@ func (cc *ClientConn) closeForError(err error) error { } cc.cond.Broadcast() cc.mu.Unlock() - return cc.closeConn() + cc.closeConn() } // Close closes the client connection immediately. @@ -1032,16 +1055,17 @@ func (cc *ClientConn) closeForError(err error) error { // In-flight requests are interrupted. For a graceful shutdown, use Shutdown instead. func (cc *ClientConn) Close() error { err := errors.New("http2: client connection force closed via ClientConn.Close") - return cc.closeForError(err) + cc.closeForError(err) + return nil } // closes the client connection immediately. In-flight requests are interrupted. -func (cc *ClientConn) closeForLostPing() error { +func (cc *ClientConn) closeForLostPing() { err := errors.New("http2: client connection lost") if f := cc.t.CountError; f != nil { f("conn_close_lost_ping") } - return cc.closeForError(err) + cc.closeForError(err) } // errRequestCanceled is a copy of net/http's errRequestCanceled because it's not @@ -1419,11 +1443,19 @@ func (cs *clientStream) cleanupWriteRequest(err error) { // and in multiple cases: server replies <=299 and >299 // while still writing request body cc.mu.Lock() + mustCloseBody := false + if cs.reqBody != nil && cs.reqBodyClosed == nil { + mustCloseBody = true + cs.reqBodyClosed = make(chan struct{}) + } bodyClosed := cs.reqBodyClosed - cs.reqBodyClosed = true cc.mu.Unlock() - if !bodyClosed && cs.reqBody != nil { + if mustCloseBody { cs.reqBody.Close() + close(bodyClosed) + } + if bodyClosed != nil { + <-bodyClosed } if err != nil && cs.sentEndStream { @@ -1603,7 +1635,7 @@ func (cs *clientStream) writeRequestBody(req *http.Request) (err error) { } if err != nil { cc.mu.Lock() - bodyClosed := cs.reqBodyClosed + bodyClosed := cs.reqBodyClosed != nil cc.mu.Unlock() switch { case bodyClosed: @@ -1698,7 +1730,7 @@ func (cs *clientStream) awaitFlowControl(maxBytes int) (taken int32, err error) if cc.closed { return 0, errClientConnClosed } - if cs.reqBodyClosed { + if cs.reqBodyClosed != nil { return 0, errStopReqBodyWrite } select { @@ -1994,7 +2026,7 @@ func (cc *ClientConn) forgetStreamID(id uint32) { // wake up RoundTrip if there is a pending request. cc.cond.Broadcast() - closeOnIdle := cc.singleUse || cc.doNotReuse || cc.t.disableKeepAlives() + closeOnIdle := cc.singleUse || cc.doNotReuse || cc.t.disableKeepAlives() || cc.goAway != nil if closeOnIdle && cc.streamsReserved == 0 && len(cc.streams) == 0 { if VerboseLogs { cc.vlogf("http2: Transport closing idle conn %p (forSingleUse=%v, maxStream=%v)", cc, cc.singleUse, cc.nextStreamID-2) @@ -2070,6 +2102,7 @@ func (rl *clientConnReadLoop) cleanup() { err = io.ErrUnexpectedEOF } cc.closed = true + for _, cs := range cc.streams { select { case <-cs.peerClosed: @@ -2663,7 +2696,6 @@ func (rl *clientConnReadLoop) processGoAway(f *GoAwayFrame) error { if fn := cc.t.CountError; fn != nil { fn("recv_goaway_" + f.ErrCode.stringToken()) } - } cc.setGoAway(f) return nil @@ -3017,7 +3049,7 @@ func traceGotConn(req *http.Request, cc *ClientConn, reused bool) { cc.mu.Lock() ci.WasIdle = len(cc.streams) == 0 && reused if ci.WasIdle && !cc.lastActive.IsZero() { - ci.IdleTime = time.Now().Sub(cc.lastActive) + ci.IdleTime = time.Since(cc.lastActive) } cc.mu.Unlock() |