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This commit is contained in:
Wim
2021-10-16 23:11:32 +02:00
parent 57fce93af7
commit 20f6c05ec5
588 changed files with 119386 additions and 3424 deletions
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165
vendor/golang.org/x/net/http2/transport.go generated vendored
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@@ -264,9 +264,8 @@ type ClientConn struct {
peerMaxHeaderListSize uint64
initialWindowSize uint32
hbuf bytes.Buffer // HPACK encoder writes into this
henc *hpack.Encoder
freeBuf [][]byte
hbuf bytes.Buffer // HPACK encoder writes into this
henc *hpack.Encoder
wmu sync.Mutex // held while writing; acquire AFTER mu if holding both
werr error // first write error that has occurred
@@ -564,12 +563,12 @@ func canRetryError(err error) bool {
return false
}
func (t *Transport) dialClientConn(addr string, singleUse bool) (*ClientConn, error) {
func (t *Transport) dialClientConn(ctx context.Context, addr string, singleUse bool) (*ClientConn, error) {
host, _, err := net.SplitHostPort(addr)
if err != nil {
return nil, err
}
tconn, err := t.dialTLS()("tcp", addr, t.newTLSConfig(host))
tconn, err := t.dialTLS(ctx)("tcp", addr, t.newTLSConfig(host))
if err != nil {
return nil, err
}
@@ -590,34 +589,24 @@ func (t *Transport) newTLSConfig(host string) *tls.Config {
return cfg
}
func (t *Transport) dialTLS() func(string, string, *tls.Config) (net.Conn, error) {
func (t *Transport) dialTLS(ctx context.Context) func(string, string, *tls.Config) (net.Conn, error) {
if t.DialTLS != nil {
return t.DialTLS
}
return t.dialTLSDefault
}
func (t *Transport) dialTLSDefault(network, addr string, cfg *tls.Config) (net.Conn, error) {
cn, err := tls.Dial(network, addr, cfg)
if err != nil {
return nil, err
}
if err := cn.Handshake(); err != nil {
return nil, err
}
if !cfg.InsecureSkipVerify {
if err := cn.VerifyHostname(cfg.ServerName); err != nil {
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
}
state := cn.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 cn, nil
}
// disableKeepAlives reports whether connections should be closed as
@@ -923,46 +912,6 @@ func (cc *ClientConn) closeForLostPing() error {
return cc.closeForError(err)
}
const maxAllocFrameSize = 512 << 10
// frameBuffer returns a scratch buffer suitable for writing DATA frames.
// They're capped at the min of the peer's max frame size or 512KB
// (kinda arbitrarily), but definitely capped so we don't allocate 4GB
// bufers.
func (cc *ClientConn) frameScratchBuffer() []byte {
cc.mu.Lock()
size := cc.maxFrameSize
if size > maxAllocFrameSize {
size = maxAllocFrameSize
}
for i, buf := range cc.freeBuf {
if len(buf) >= int(size) {
cc.freeBuf[i] = nil
cc.mu.Unlock()
return buf[:size]
}
}
cc.mu.Unlock()
return make([]byte, size)
}
func (cc *ClientConn) putFrameScratchBuffer(buf []byte) {
cc.mu.Lock()
defer cc.mu.Unlock()
const maxBufs = 4 // arbitrary; 4 concurrent requests per conn? investigate.
if len(cc.freeBuf) < maxBufs {
cc.freeBuf = append(cc.freeBuf, buf)
return
}
for i, old := range cc.freeBuf {
if old == nil {
cc.freeBuf[i] = buf
return
}
}
// forget about it.
}
// errRequestCanceled is a copy of net/http's errRequestCanceled because it's not
// exported. At least they'll be DeepEqual for h1-vs-h2 comparisons tests.
var errRequestCanceled = errors.New("net/http: request canceled")
@@ -1005,7 +954,7 @@ func checkConnHeaders(req *http.Request) error {
if vv := req.Header["Transfer-Encoding"]; len(vv) > 0 && (len(vv) > 1 || vv[0] != "" && vv[0] != "chunked") {
return fmt.Errorf("http2: invalid Transfer-Encoding request header: %q", vv)
}
if vv := req.Header["Connection"]; len(vv) > 0 && (len(vv) > 1 || vv[0] != "" && !strings.EqualFold(vv[0], "close") && !strings.EqualFold(vv[0], "keep-alive")) {
if vv := req.Header["Connection"]; len(vv) > 0 && (len(vv) > 1 || vv[0] != "" && !asciiEqualFold(vv[0], "close") && !asciiEqualFold(vv[0], "keep-alive")) {
return fmt.Errorf("http2: invalid Connection request header: %q", vv)
}
return nil
@@ -1305,11 +1254,35 @@ var (
errReqBodyTooLong = errors.New("http2: request body larger than specified content length")
)
// frameScratchBufferLen returns the length of a buffer to use for
// outgoing request bodies to read/write to/from.
//
// It returns max(1, min(peer's advertised max frame size,
// Request.ContentLength+1, 512KB)).
func (cs *clientStream) frameScratchBufferLen(maxFrameSize int) int {
const max = 512 << 10
n := int64(maxFrameSize)
if n > max {
n = max
}
if cl := actualContentLength(cs.req); cl != -1 && cl+1 < n {
// Add an extra byte past the declared content-length to
// give the caller's Request.Body io.Reader a chance to
// give us more bytes than they declared, so we can catch it
// early.
n = cl + 1
}
if n < 1 {
return 1
}
return int(n) // doesn't truncate; max is 512K
}
var bufPool sync.Pool // of *[]byte
func (cs *clientStream) writeRequestBody(body io.Reader, bodyCloser io.Closer) (err error) {
cc := cs.cc
sentEnd := false // whether we sent the final DATA frame w/ END_STREAM
buf := cc.frameScratchBuffer()
defer cc.putFrameScratchBuffer(buf)
defer func() {
traceWroteRequest(cs.trace, err)
@@ -1328,9 +1301,24 @@ func (cs *clientStream) writeRequestBody(body io.Reader, bodyCloser io.Closer) (
remainLen := actualContentLength(req)
hasContentLen := remainLen != -1
cc.mu.Lock()
maxFrameSize := int(cc.maxFrameSize)
cc.mu.Unlock()
// Scratch buffer for reading into & writing from.
scratchLen := cs.frameScratchBufferLen(maxFrameSize)
var buf []byte
if bp, ok := bufPool.Get().(*[]byte); ok && len(*bp) >= scratchLen {
defer bufPool.Put(bp)
buf = *bp
} else {
buf = make([]byte, scratchLen)
defer bufPool.Put(&buf)
}
var sawEOF bool
for !sawEOF {
n, err := body.Read(buf[:len(buf)-1])
n, err := body.Read(buf[:len(buf)])
if hasContentLen {
remainLen -= int64(n)
if remainLen == 0 && err == nil {
@@ -1341,8 +1329,9 @@ func (cs *clientStream) writeRequestBody(body io.Reader, bodyCloser io.Closer) (
// to send the END_STREAM bit early, double-check that we're actually
// at EOF. Subsequent reads should return (0, EOF) at this point.
// If either value is different, we return an error in one of two ways below.
var scratch [1]byte
var n1 int
n1, err = body.Read(buf[n:])
n1, err = body.Read(scratch[:])
remainLen -= int64(n1)
}
if remainLen < 0 {
@@ -1412,10 +1401,6 @@ func (cs *clientStream) writeRequestBody(body io.Reader, bodyCloser io.Closer) (
}
}
cc.mu.Lock()
maxFrameSize := int(cc.maxFrameSize)
cc.mu.Unlock()
cc.wmu.Lock()
defer cc.wmu.Unlock()
@@ -1531,19 +1516,21 @@ func (cc *ClientConn) encodeHeaders(req *http.Request, addGzipHeader bool, trail
var didUA bool
for k, vv := range req.Header {
if strings.EqualFold(k, "host") || strings.EqualFold(k, "content-length") {
if asciiEqualFold(k, "host") || asciiEqualFold(k, "content-length") {
// Host is :authority, already sent.
// Content-Length is automatic, set below.
continue
} else if strings.EqualFold(k, "connection") || strings.EqualFold(k, "proxy-connection") ||
strings.EqualFold(k, "transfer-encoding") || strings.EqualFold(k, "upgrade") ||
strings.EqualFold(k, "keep-alive") {
} else if asciiEqualFold(k, "connection") ||
asciiEqualFold(k, "proxy-connection") ||
asciiEqualFold(k, "transfer-encoding") ||
asciiEqualFold(k, "upgrade") ||
asciiEqualFold(k, "keep-alive") {
// Per 8.1.2.2 Connection-Specific Header
// Fields, don't send connection-specific
// fields. We have already checked if any
// are error-worthy so just ignore the rest.
continue
} else if strings.EqualFold(k, "user-agent") {
} else if asciiEqualFold(k, "user-agent") {
// Match Go's http1 behavior: at most one
// User-Agent. If set to nil or empty string,
// then omit it. Otherwise if not mentioned,
@@ -1556,7 +1543,7 @@ func (cc *ClientConn) encodeHeaders(req *http.Request, addGzipHeader bool, trail
if vv[0] == "" {
continue
}
} else if strings.EqualFold(k, "cookie") {
} else if asciiEqualFold(k, "cookie") {
// Per 8.1.2.5 To allow for better compression efficiency, the
// Cookie header field MAY be split into separate header fields,
// each with one or more cookie-pairs.
@@ -1615,7 +1602,12 @@ func (cc *ClientConn) encodeHeaders(req *http.Request, addGzipHeader bool, trail
// Header list size is ok. Write the headers.
enumerateHeaders(func(name, value string) {
name = strings.ToLower(name)
name, ascii := asciiToLower(name)
if !ascii {
// Skip writing invalid headers. Per RFC 7540, Section 8.1.2, header
// field names have to be ASCII characters (just as in HTTP/1.x).
return
}
cc.writeHeader(name, value)
if traceHeaders {
traceWroteHeaderField(trace, name, value)
@@ -1663,9 +1655,14 @@ func (cc *ClientConn) encodeTrailers(req *http.Request) ([]byte, error) {
}
for k, vv := range req.Trailer {
lowKey, ascii := asciiToLower(k)
if !ascii {
// Skip writing invalid headers. Per RFC 7540, Section 8.1.2, header
// field names have to be ASCII characters (just as in HTTP/1.x).
continue
}
// Transfer-Encoding, etc.. have already been filtered at the
// start of RoundTrip
lowKey := strings.ToLower(k)
for _, v := range vv {
cc.writeHeader(lowKey, v)
}