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-rw-r--r--vendor/golang.org/x/net/http2/frame.go4
-rw-r--r--vendor/golang.org/x/net/http2/http2.go42
-rw-r--r--vendor/golang.org/x/net/http2/server.go35
-rw-r--r--vendor/golang.org/x/net/http2/transport.go137
4 files changed, 160 insertions, 58 deletions
diff --git a/vendor/golang.org/x/net/http2/frame.go b/vendor/golang.org/x/net/http2/frame.go
index 105c3b279..81faec7e7 100644
--- a/vendor/golang.org/x/net/http2/frame.go
+++ b/vendor/golang.org/x/net/http2/frame.go
@@ -1490,7 +1490,7 @@ func (mh *MetaHeadersFrame) checkPseudos() error {
pf := mh.PseudoFields()
for i, hf := range pf {
switch hf.Name {
- case ":method", ":path", ":scheme", ":authority":
+ case ":method", ":path", ":scheme", ":authority", ":protocol":
isRequest = true
case ":status":
isResponse = true
@@ -1498,7 +1498,7 @@ func (mh *MetaHeadersFrame) checkPseudos() error {
return pseudoHeaderError(hf.Name)
}
// Check for duplicates.
- // This would be a bad algorithm, but N is 4.
+ // This would be a bad algorithm, but N is 5.
// And this doesn't allocate.
for _, hf2 := range pf[:i] {
if hf.Name == hf2.Name {
diff --git a/vendor/golang.org/x/net/http2/http2.go b/vendor/golang.org/x/net/http2/http2.go
index 7688c356b..c7601c909 100644
--- a/vendor/golang.org/x/net/http2/http2.go
+++ b/vendor/golang.org/x/net/http2/http2.go
@@ -34,10 +34,11 @@ import (
)
var (
- VerboseLogs bool
- logFrameWrites bool
- logFrameReads bool
- inTests bool
+ VerboseLogs bool
+ logFrameWrites bool
+ logFrameReads bool
+ inTests bool
+ disableExtendedConnectProtocol bool
)
func init() {
@@ -50,6 +51,9 @@ func init() {
logFrameWrites = true
logFrameReads = true
}
+ if strings.Contains(e, "http2xconnect=0") {
+ disableExtendedConnectProtocol = true
+ }
}
const (
@@ -141,6 +145,10 @@ func (s Setting) Valid() error {
if s.Val < 16384 || s.Val > 1<<24-1 {
return ConnectionError(ErrCodeProtocol)
}
+ case SettingEnableConnectProtocol:
+ if s.Val != 1 && s.Val != 0 {
+ return ConnectionError(ErrCodeProtocol)
+ }
}
return nil
}
@@ -150,21 +158,23 @@ func (s Setting) Valid() error {
type SettingID uint16
const (
- SettingHeaderTableSize SettingID = 0x1
- SettingEnablePush SettingID = 0x2
- SettingMaxConcurrentStreams SettingID = 0x3
- SettingInitialWindowSize SettingID = 0x4
- SettingMaxFrameSize SettingID = 0x5
- SettingMaxHeaderListSize SettingID = 0x6
+ SettingHeaderTableSize SettingID = 0x1
+ SettingEnablePush SettingID = 0x2
+ SettingMaxConcurrentStreams SettingID = 0x3
+ SettingInitialWindowSize SettingID = 0x4
+ SettingMaxFrameSize SettingID = 0x5
+ SettingMaxHeaderListSize SettingID = 0x6
+ SettingEnableConnectProtocol SettingID = 0x8
)
var settingName = map[SettingID]string{
- SettingHeaderTableSize: "HEADER_TABLE_SIZE",
- SettingEnablePush: "ENABLE_PUSH",
- SettingMaxConcurrentStreams: "MAX_CONCURRENT_STREAMS",
- SettingInitialWindowSize: "INITIAL_WINDOW_SIZE",
- SettingMaxFrameSize: "MAX_FRAME_SIZE",
- SettingMaxHeaderListSize: "MAX_HEADER_LIST_SIZE",
+ SettingHeaderTableSize: "HEADER_TABLE_SIZE",
+ SettingEnablePush: "ENABLE_PUSH",
+ SettingMaxConcurrentStreams: "MAX_CONCURRENT_STREAMS",
+ SettingInitialWindowSize: "INITIAL_WINDOW_SIZE",
+ SettingMaxFrameSize: "MAX_FRAME_SIZE",
+ SettingMaxHeaderListSize: "MAX_HEADER_LIST_SIZE",
+ SettingEnableConnectProtocol: "ENABLE_CONNECT_PROTOCOL",
}
func (s SettingID) String() string {
diff --git a/vendor/golang.org/x/net/http2/server.go b/vendor/golang.org/x/net/http2/server.go
index 832414b45..b55547aec 100644
--- a/vendor/golang.org/x/net/http2/server.go
+++ b/vendor/golang.org/x/net/http2/server.go
@@ -932,14 +932,18 @@ func (sc *serverConn) serve(conf http2Config) {
sc.vlogf("http2: server connection from %v on %p", sc.conn.RemoteAddr(), sc.hs)
}
+ settings := writeSettings{
+ {SettingMaxFrameSize, conf.MaxReadFrameSize},
+ {SettingMaxConcurrentStreams, sc.advMaxStreams},
+ {SettingMaxHeaderListSize, sc.maxHeaderListSize()},
+ {SettingHeaderTableSize, conf.MaxDecoderHeaderTableSize},
+ {SettingInitialWindowSize, uint32(sc.initialStreamRecvWindowSize)},
+ }
+ if !disableExtendedConnectProtocol {
+ settings = append(settings, Setting{SettingEnableConnectProtocol, 1})
+ }
sc.writeFrame(FrameWriteRequest{
- write: writeSettings{
- {SettingMaxFrameSize, conf.MaxReadFrameSize},
- {SettingMaxConcurrentStreams, sc.advMaxStreams},
- {SettingMaxHeaderListSize, sc.maxHeaderListSize()},
- {SettingHeaderTableSize, conf.MaxDecoderHeaderTableSize},
- {SettingInitialWindowSize, uint32(sc.initialStreamRecvWindowSize)},
- },
+ write: settings,
})
sc.unackedSettings++
@@ -1801,6 +1805,9 @@ func (sc *serverConn) processSetting(s Setting) error {
sc.maxFrameSize = int32(s.Val) // the maximum valid s.Val is < 2^31
case SettingMaxHeaderListSize:
sc.peerMaxHeaderListSize = s.Val
+ case SettingEnableConnectProtocol:
+ // Receipt of this parameter by a server does not
+ // have any impact
default:
// Unknown setting: "An endpoint that receives a SETTINGS
// frame with any unknown or unsupported identifier MUST
@@ -2231,11 +2238,17 @@ func (sc *serverConn) newWriterAndRequest(st *stream, f *MetaHeadersFrame) (*res
scheme: f.PseudoValue("scheme"),
authority: f.PseudoValue("authority"),
path: f.PseudoValue("path"),
+ protocol: f.PseudoValue("protocol"),
+ }
+
+ // extended connect is disabled, so we should not see :protocol
+ if disableExtendedConnectProtocol && rp.protocol != "" {
+ return nil, nil, sc.countError("bad_connect", streamError(f.StreamID, ErrCodeProtocol))
}
isConnect := rp.method == "CONNECT"
if isConnect {
- if rp.path != "" || rp.scheme != "" || rp.authority == "" {
+ if rp.protocol == "" && (rp.path != "" || rp.scheme != "" || rp.authority == "") {
return nil, nil, sc.countError("bad_connect", streamError(f.StreamID, ErrCodeProtocol))
}
} else if rp.method == "" || rp.path == "" || (rp.scheme != "https" && rp.scheme != "http") {
@@ -2259,6 +2272,9 @@ func (sc *serverConn) newWriterAndRequest(st *stream, f *MetaHeadersFrame) (*res
if rp.authority == "" {
rp.authority = rp.header.Get("Host")
}
+ if rp.protocol != "" {
+ rp.header.Set(":protocol", rp.protocol)
+ }
rw, req, err := sc.newWriterAndRequestNoBody(st, rp)
if err != nil {
@@ -2285,6 +2301,7 @@ func (sc *serverConn) newWriterAndRequest(st *stream, f *MetaHeadersFrame) (*res
type requestParam struct {
method string
scheme, authority, path string
+ protocol string
header http.Header
}
@@ -2326,7 +2343,7 @@ func (sc *serverConn) newWriterAndRequestNoBody(st *stream, rp requestParam) (*r
var url_ *url.URL
var requestURI string
- if rp.method == "CONNECT" {
+ if rp.method == "CONNECT" && rp.protocol == "" {
url_ = &url.URL{Host: rp.authority}
requestURI = rp.authority // mimic HTTP/1 server behavior
} else {
diff --git a/vendor/golang.org/x/net/http2/transport.go b/vendor/golang.org/x/net/http2/transport.go
index f5968f440..090d0e1bd 100644
--- a/vendor/golang.org/x/net/http2/transport.go
+++ b/vendor/golang.org/x/net/http2/transport.go
@@ -368,25 +368,26 @@ type ClientConn struct {
idleTimeout time.Duration // or 0 for never
idleTimer timer
- mu sync.Mutex // guards following
- cond *sync.Cond // hold mu; broadcast on flow/closed changes
- flow outflow // our conn-level flow control quota (cs.outflow is per stream)
- inflow inflow // peer's conn-level flow control
- doNotReuse bool // whether conn is marked to not be reused for any future requests
- closing bool
- closed bool
- seenSettings bool // true if we've seen a settings frame, false otherwise
- wantSettingsAck bool // we sent a SETTINGS frame and haven't heard back
- goAway *GoAwayFrame // if non-nil, the GoAwayFrame we received
- goAwayDebug string // goAway frame's debug data, retained as a string
- streams map[uint32]*clientStream // client-initiated
- streamsReserved int // incr by ReserveNewRequest; decr on RoundTrip
- nextStreamID uint32
- pendingRequests int // requests blocked and waiting to be sent because len(streams) == maxConcurrentStreams
- pings map[[8]byte]chan struct{} // in flight ping data to notification channel
- br *bufio.Reader
- lastActive time.Time
- lastIdle time.Time // time last idle
+ mu sync.Mutex // guards following
+ cond *sync.Cond // hold mu; broadcast on flow/closed changes
+ flow outflow // our conn-level flow control quota (cs.outflow is per stream)
+ inflow inflow // peer's conn-level flow control
+ doNotReuse bool // whether conn is marked to not be reused for any future requests
+ closing bool
+ closed bool
+ seenSettings bool // true if we've seen a settings frame, false otherwise
+ seenSettingsChan chan struct{} // closed when seenSettings is true or frame reading fails
+ wantSettingsAck bool // we sent a SETTINGS frame and haven't heard back
+ goAway *GoAwayFrame // if non-nil, the GoAwayFrame we received
+ goAwayDebug string // goAway frame's debug data, retained as a string
+ streams map[uint32]*clientStream // client-initiated
+ streamsReserved int // incr by ReserveNewRequest; decr on RoundTrip
+ nextStreamID uint32
+ pendingRequests int // requests blocked and waiting to be sent because len(streams) == maxConcurrentStreams
+ pings map[[8]byte]chan struct{} // in flight ping data to notification channel
+ br *bufio.Reader
+ lastActive time.Time
+ lastIdle time.Time // time last idle
// Settings from peer: (also guarded by wmu)
maxFrameSize uint32
maxConcurrentStreams uint32
@@ -396,6 +397,17 @@ type ClientConn struct {
initialStreamRecvWindowSize int32
readIdleTimeout time.Duration
pingTimeout time.Duration
+ extendedConnectAllowed bool
+
+ // rstStreamPingsBlocked works around an unfortunate gRPC behavior.
+ // gRPC strictly limits the number of PING frames that it will receive.
+ // The default is two pings per two hours, but the limit resets every time
+ // the gRPC endpoint sends a HEADERS or DATA frame. See golang/go#70575.
+ //
+ // rstStreamPingsBlocked is set after receiving a response to a PING frame
+ // bundled with an RST_STREAM (see pendingResets below), and cleared after
+ // receiving a HEADERS or DATA frame.
+ rstStreamPingsBlocked bool
// pendingResets is the number of RST_STREAM frames we have sent to the peer,
// without confirming that the peer has received them. When we send a RST_STREAM,
@@ -819,6 +831,7 @@ func (t *Transport) newClientConn(c net.Conn, singleUse bool) (*ClientConn, erro
peerMaxHeaderListSize: 0xffffffffffffffff, // "infinite", per spec. Use 2^64-1 instead.
streams: make(map[uint32]*clientStream),
singleUse: singleUse,
+ seenSettingsChan: make(chan struct{}),
wantSettingsAck: true,
readIdleTimeout: conf.SendPingTimeout,
pingTimeout: conf.PingTimeout,
@@ -1466,6 +1479,8 @@ func (cs *clientStream) doRequest(req *http.Request, streamf func(*clientStream)
cs.cleanupWriteRequest(err)
}
+var errExtendedConnectNotSupported = errors.New("net/http: extended connect not supported by peer")
+
// writeRequest sends a request.
//
// It returns nil after the request is written, the response read,
@@ -1481,12 +1496,31 @@ func (cs *clientStream) writeRequest(req *http.Request, streamf func(*clientStre
return err
}
+ // wait for setting frames to be received, a server can change this value later,
+ // but we just wait for the first settings frame
+ var isExtendedConnect bool
+ if req.Method == "CONNECT" && req.Header.Get(":protocol") != "" {
+ isExtendedConnect = true
+ }
+
// Acquire the new-request lock by writing to reqHeaderMu.
// This lock guards the critical section covering allocating a new stream ID
// (requires mu) and creating the stream (requires wmu).
if cc.reqHeaderMu == nil {
panic("RoundTrip on uninitialized ClientConn") // for tests
}
+ if isExtendedConnect {
+ select {
+ case <-cs.reqCancel:
+ return errRequestCanceled
+ case <-ctx.Done():
+ return ctx.Err()
+ case <-cc.seenSettingsChan:
+ if !cc.extendedConnectAllowed {
+ return errExtendedConnectNotSupported
+ }
+ }
+ }
select {
case cc.reqHeaderMu <- struct{}{}:
case <-cs.reqCancel:
@@ -1714,10 +1748,14 @@ func (cs *clientStream) cleanupWriteRequest(err error) {
ping := false
if !closeOnIdle {
cc.mu.Lock()
- if cc.pendingResets == 0 {
- ping = true
+ // rstStreamPingsBlocked works around a gRPC behavior:
+ // see comment on the field for details.
+ if !cc.rstStreamPingsBlocked {
+ if cc.pendingResets == 0 {
+ ping = true
+ }
+ cc.pendingResets++
}
- cc.pendingResets++
cc.mu.Unlock()
}
cc.writeStreamReset(cs.ID, ErrCodeCancel, ping, err)
@@ -2030,7 +2068,7 @@ func (cs *clientStream) awaitFlowControl(maxBytes int) (taken int32, err error)
func validateHeaders(hdrs http.Header) string {
for k, vv := range hdrs {
- if !httpguts.ValidHeaderFieldName(k) {
+ if !httpguts.ValidHeaderFieldName(k) && k != ":protocol" {
return fmt.Sprintf("name %q", k)
}
for _, v := range vv {
@@ -2046,6 +2084,10 @@ func validateHeaders(hdrs http.Header) string {
var errNilRequestURL = errors.New("http2: Request.URI is nil")
+func isNormalConnect(req *http.Request) bool {
+ return req.Method == "CONNECT" && req.Header.Get(":protocol") == ""
+}
+
// requires cc.wmu be held.
func (cc *ClientConn) encodeHeaders(req *http.Request, addGzipHeader bool, trailers string, contentLength int64) ([]byte, error) {
cc.hbuf.Reset()
@@ -2066,7 +2108,7 @@ func (cc *ClientConn) encodeHeaders(req *http.Request, addGzipHeader bool, trail
}
var path string
- if req.Method != "CONNECT" {
+ if !isNormalConnect(req) {
path = req.URL.RequestURI()
if !validPseudoPath(path) {
orig := path
@@ -2103,7 +2145,7 @@ func (cc *ClientConn) encodeHeaders(req *http.Request, addGzipHeader bool, trail
m = http.MethodGet
}
f(":method", m)
- if req.Method != "CONNECT" {
+ if !isNormalConnect(req) {
f(":path", path)
f(":scheme", req.URL.Scheme)
}
@@ -2461,7 +2503,7 @@ func (rl *clientConnReadLoop) run() error {
cc.vlogf("http2: Transport readFrame error on conn %p: (%T) %v", cc, err, err)
}
if se, ok := err.(StreamError); ok {
- if cs := rl.streamByID(se.StreamID); cs != nil {
+ if cs := rl.streamByID(se.StreamID, notHeaderOrDataFrame); cs != nil {
if se.Cause == nil {
se.Cause = cc.fr.errDetail
}
@@ -2507,13 +2549,16 @@ func (rl *clientConnReadLoop) run() error {
if VerboseLogs {
cc.vlogf("http2: Transport conn %p received error from processing frame %v: %v", cc, summarizeFrame(f), err)
}
+ if !cc.seenSettings {
+ close(cc.seenSettingsChan)
+ }
return err
}
}
}
func (rl *clientConnReadLoop) processHeaders(f *MetaHeadersFrame) error {
- cs := rl.streamByID(f.StreamID)
+ cs := rl.streamByID(f.StreamID, headerOrDataFrame)
if cs == nil {
// We'd get here if we canceled a request while the
// server had its response still in flight. So if this
@@ -2842,7 +2887,7 @@ func (b transportResponseBody) Close() error {
func (rl *clientConnReadLoop) processData(f *DataFrame) error {
cc := rl.cc
- cs := rl.streamByID(f.StreamID)
+ cs := rl.streamByID(f.StreamID, headerOrDataFrame)
data := f.Data()
if cs == nil {
cc.mu.Lock()
@@ -2977,9 +3022,22 @@ func (rl *clientConnReadLoop) endStreamError(cs *clientStream, err error) {
cs.abortStream(err)
}
-func (rl *clientConnReadLoop) streamByID(id uint32) *clientStream {
+// Constants passed to streamByID for documentation purposes.
+const (
+ headerOrDataFrame = true
+ notHeaderOrDataFrame = false
+)
+
+// streamByID returns the stream with the given id, or nil if no stream has that id.
+// If headerOrData is true, it clears rst.StreamPingsBlocked.
+func (rl *clientConnReadLoop) streamByID(id uint32, headerOrData bool) *clientStream {
rl.cc.mu.Lock()
defer rl.cc.mu.Unlock()
+ if headerOrData {
+ // Work around an unfortunate gRPC behavior.
+ // See comment on ClientConn.rstStreamPingsBlocked for details.
+ rl.cc.rstStreamPingsBlocked = false
+ }
cs := rl.cc.streams[id]
if cs != nil && !cs.readAborted {
return cs
@@ -3073,6 +3131,21 @@ func (rl *clientConnReadLoop) processSettingsNoWrite(f *SettingsFrame) error {
case SettingHeaderTableSize:
cc.henc.SetMaxDynamicTableSize(s.Val)
cc.peerMaxHeaderTableSize = s.Val
+ case SettingEnableConnectProtocol:
+ if err := s.Valid(); err != nil {
+ return err
+ }
+ // If the peer wants to send us SETTINGS_ENABLE_CONNECT_PROTOCOL,
+ // we require that it do so in the first SETTINGS frame.
+ //
+ // When we attempt to use extended CONNECT, we wait for the first
+ // SETTINGS frame to see if the server supports it. If we let the
+ // server enable the feature with a later SETTINGS frame, then
+ // users will see inconsistent results depending on whether we've
+ // seen that frame or not.
+ if !cc.seenSettings {
+ cc.extendedConnectAllowed = s.Val == 1
+ }
default:
cc.vlogf("Unhandled Setting: %v", s)
}
@@ -3090,6 +3163,7 @@ func (rl *clientConnReadLoop) processSettingsNoWrite(f *SettingsFrame) error {
// connection can establish to our default.
cc.maxConcurrentStreams = defaultMaxConcurrentStreams
}
+ close(cc.seenSettingsChan)
cc.seenSettings = true
}
@@ -3098,7 +3172,7 @@ func (rl *clientConnReadLoop) processSettingsNoWrite(f *SettingsFrame) error {
func (rl *clientConnReadLoop) processWindowUpdate(f *WindowUpdateFrame) error {
cc := rl.cc
- cs := rl.streamByID(f.StreamID)
+ cs := rl.streamByID(f.StreamID, notHeaderOrDataFrame)
if f.StreamID != 0 && cs == nil {
return nil
}
@@ -3127,7 +3201,7 @@ func (rl *clientConnReadLoop) processWindowUpdate(f *WindowUpdateFrame) error {
}
func (rl *clientConnReadLoop) processResetStream(f *RSTStreamFrame) error {
- cs := rl.streamByID(f.StreamID)
+ cs := rl.streamByID(f.StreamID, notHeaderOrDataFrame)
if cs == nil {
// TODO: return error if server tries to RST_STREAM an idle stream
return nil
@@ -3205,6 +3279,7 @@ func (rl *clientConnReadLoop) processPing(f *PingFrame) error {
if cc.pendingResets > 0 {
// See clientStream.cleanupWriteRequest.
cc.pendingResets = 0
+ cc.rstStreamPingsBlocked = true
cc.cond.Broadcast()
}
return nil
generated by cgit v1.2.3 (git 2.46.0) at 2025-07-24 04:45:52 +0000