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net/http: update bundled http2
Updates x/net/http2 to git rev 6bdd4be4 for CL 23526: http2: GotFirstResponseByte hook should only fire once Also updated the trace hooks test to verify that all trace hooks are called exactly once except ConnectStart/End, which may be called multiple times (due to happy-eyeballs). Fixes #15777 Change-Id: Iea5c64eb322b58be27f9ff863b3a6f90e996fa9b Reviewed-on: https://go-review.googlesource.com/23527 Reviewed-by: Andrew Gerrand <adg@golang.org>
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@ -25,8 +25,6 @@ import (
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"encoding/binary"
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"errors"
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"fmt"
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"golang.org/x/net/http2/hpack"
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"golang.org/x/net/lex/httplex"
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"io"
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"io/ioutil"
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"log"
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@ -42,6 +40,9 @@ import (
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"strings"
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"sync"
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"time"
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"golang.org/x/net/http2/hpack"
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"golang.org/x/net/lex/httplex"
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)
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// ClientConnPool manages a pool of HTTP/2 client connections.
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@ -291,7 +292,7 @@ func http2configureTransport(t1 *Transport) (*http2Transport, error) {
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t1.TLSClientConfig.NextProtos = append(t1.TLSClientConfig.NextProtos, "http/1.1")
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}
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upgradeFn := func(authority string, c *tls.Conn) RoundTripper {
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addr := http2authorityAddr(authority)
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addr := http2authorityAddr("https", authority)
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if used, err := connPool.addConnIfNeeded(addr, t2, c); err != nil {
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go c.Close()
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return http2erringRoundTripper{err}
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@ -4848,6 +4849,10 @@ type http2Transport struct {
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// uncompressed.
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DisableCompression bool
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// AllowHTTP, if true, permits HTTP/2 requests using the insecure,
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// plain-text "http" scheme. Note that this does not enable h2c support.
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AllowHTTP bool
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// MaxHeaderListSize is the http2 SETTINGS_MAX_HEADER_LIST_SIZE to
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// send in the initial settings frame. It is how many bytes
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// of response headers are allow. Unlike the http2 spec, zero here
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@ -4963,6 +4968,7 @@ type http2clientStream struct {
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done chan struct{} // closed when stream remove from cc.streams map; close calls guarded by cc.mu
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// owned by clientConnReadLoop:
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firstByte bool // got the first response byte
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pastHeaders bool // got first MetaHeadersFrame (actual headers)
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pastTrailers bool // got optional second MetaHeadersFrame (trailers)
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@ -5046,20 +5052,24 @@ func (t *http2Transport) RoundTrip(req *Request) (*Response, error) {
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// authorityAddr returns a given authority (a host/IP, or host:port / ip:port)
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// and returns a host:port. The port 443 is added if needed.
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func http2authorityAddr(authority string) (addr string) {
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func http2authorityAddr(scheme string, authority string) (addr string) {
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if _, _, err := net.SplitHostPort(authority); err == nil {
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return authority
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}
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return net.JoinHostPort(authority, "443")
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port := "443"
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if scheme == "http" {
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port = "80"
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}
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return net.JoinHostPort(authority, port)
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}
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// RoundTripOpt is like RoundTrip, but takes options.
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func (t *http2Transport) RoundTripOpt(req *Request, opt http2RoundTripOpt) (*Response, error) {
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if req.URL.Scheme != "https" {
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if !(req.URL.Scheme == "https" || (req.URL.Scheme == "http" && t.AllowHTTP)) {
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return nil, errors.New("http2: unsupported scheme")
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}
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addr := http2authorityAddr(req.URL.Host)
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addr := http2authorityAddr(req.URL.Scheme, req.URL.Host)
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for {
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cc, err := t.connPool().GetClientConn(req, addr)
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if err != nil {
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@ -5944,15 +5954,18 @@ func (rl *http2clientConnReadLoop) processHeaders(f *http2MetaHeadersFrame) erro
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return nil
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}
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if !cs.firstByte {
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if cs.trace != nil {
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http2traceFirstResponseByte(cs.trace)
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}
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cs.firstByte = true
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}
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if !cs.pastHeaders {
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cs.pastHeaders = true
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} else {
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return rl.processTrailers(cs, f)
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}
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if cs.trace != nil {
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http2traceFirstResponseByte(cs.trace)
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}
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res, err := rl.handleResponse(cs, f)
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if err != nil {
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@ -3312,27 +3312,30 @@ func testTransportEventTrace(t *testing.T, h2 bool, noHooks bool) {
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}
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got := buf.String()
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wantSub := func(sub string) {
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if !strings.Contains(got, sub) {
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t.Errorf("expected substring %q in output.", sub)
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wantOnce := func(sub string) {
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if strings.Count(got, sub) != 1 {
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t.Errorf("expected substring %q exactly once in output.", sub)
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}
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}
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if strings.Count(got, "got conn: {") != 1 {
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t.Errorf("expected exactly 1 \"got conn\" event.")
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wantOnceOrMore := func(sub string) {
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if strings.Count(got, sub) == 0 {
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t.Errorf("expected substring %q at least once in output.", sub)
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}
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}
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wantSub("Getting conn for dns-is-faked.golang:" + port)
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wantSub("DNS start: {Host:dns-is-faked.golang}")
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wantSub("DNS done: {Addrs:[{IP:" + ip + " Zone:}] Err:<nil> Coalesced:false}")
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wantSub("Connecting to tcp " + addrStr)
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wantSub("connected to tcp " + addrStr + " = <nil>")
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wantSub("Reused:false WasIdle:false IdleTime:0s")
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wantSub("first response byte")
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wantOnce("Getting conn for dns-is-faked.golang:" + port)
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wantOnce("DNS start: {Host:dns-is-faked.golang}")
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wantOnce("DNS done: {Addrs:[{IP:" + ip + " Zone:}] Err:<nil> Coalesced:false}")
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wantOnce("got conn: {")
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wantOnceOrMore("Connecting to tcp " + addrStr)
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wantOnceOrMore("connected to tcp " + addrStr + " = <nil>")
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wantOnce("Reused:false WasIdle:false IdleTime:0s")
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wantOnce("first response byte")
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if !h2 {
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wantSub("PutIdleConn = <nil>")
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wantOnce("PutIdleConn = <nil>")
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}
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wantSub("Wait100Continue")
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wantSub("Got100Continue")
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wantSub("WroteRequest: {Err:<nil>}")
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wantOnce("Wait100Continue")
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wantOnce("Got100Continue")
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wantOnce("WroteRequest: {Err:<nil>}")
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if strings.Contains(got, " to udp ") {
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t.Errorf("should not see UDP (DNS) connections")
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}
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