diff options
Diffstat (limited to 'vendor/golang.org/x/net/http2/transport.go')
| -rw-r--r-- | vendor/golang.org/x/net/http2/transport.go | 68 |
1 files changed, 35 insertions, 33 deletions
diff --git a/vendor/golang.org/x/net/http2/transport.go b/vendor/golang.org/x/net/http2/transport.go index 7688d72c3..7bd4b9c19 100644 --- a/vendor/golang.org/x/net/http2/transport.go +++ b/vendor/golang.org/x/net/http2/transport.go @@ -564,12 +564,12 @@ 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 +590,24 @@ 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 @@ -1005,7 +995,7 @@ 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 @@ -1531,19 +1521,21 @@ 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 +1548,7 @@ 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 +1607,12 @@ 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 +1660,14 @@ 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) } |