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bug fix: processing header fields regardless in order to keep HPACK tables consistent

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This commit is contained in:
iamqizhao
2015-04-14 18:50:32 -07:00
parent 9bca4bbd23
commit b8cfe25c6e
3 changed files with 17 additions and 14 deletions
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17
transport/http2_client.go
View File

@ -593,7 +593,11 @@ func (t *http2Client) operateHeaders(hDec *hpackDecoder, s *Stream, frame header
hDec.state = decodeState{}
}
}()
endHeaders, err := hDec.decodeClientHTTP2Headers(s, frame)
endHeaders, err := hDec.decodeClientHTTP2Headers(frame)
if s == nil {
// s has been closed.
return nil
}
if err != nil {
s.write(recvMsg{err: err})
// Something wrong. Stops reading even when there is remaining.
@ -659,16 +663,13 @@ func (t *http2Client) reader() {
}
switch frame := frame.(type) {
case *http2.HeadersFrame:
var ok bool
if curStream, ok = t.getStream(frame); !ok {
continue
}
// operateHeaders has to be invoked regardless the value of curStream
// because the HPACK decoder needs to be updated using the received
// headers.
curStream, _ = t.getStream(frame)
endStream := frame.Header().Flags.Has(http2.FlagHeadersEndStream)
curStream = t.operateHeaders(hDec, curStream, frame, endStream)
case *http2.ContinuationFrame:
if curStream == nil {
continue
}
curStream = t.operateHeaders(hDec, curStream, frame, false)
case *http2.DataFrame:
t.handleData(frame)

10
transport/http2_server.go
View File

@ -143,7 +143,11 @@ func (t *http2Server) operateHeaders(hDec *hpackDecoder, s *Stream, frame header
hDec.state = decodeState{}
}
}()
endHeaders, err := hDec.decodeServerHTTP2Headers(s, frame)
endHeaders, err := hDec.decodeServerHTTP2Headers(frame)
if s == nil {
// s has been closed.
return nil
}
if err != nil {
log.Printf("transport: http2Server.operateHeader found %v", err)
if se, ok := err.(StreamError); ok {
@ -266,9 +270,6 @@ func (t *http2Server) HandleStreams(handle func(*Stream)) {
endStream := frame.Header().Flags.Has(http2.FlagHeadersEndStream)
curStream = t.operateHeaders(hDec, curStream, frame, endStream, handle, &wg)
case *http2.ContinuationFrame:
if curStream == nil {
continue
}
curStream = t.operateHeaders(hDec, curStream, frame, false, handle, &wg)
case *http2.DataFrame:
t.handleData(frame)
@ -483,6 +484,7 @@ func (t *http2Server) WriteStatus(s *Stream, statusCode codes.Code, statusDesc s
t.hEnc.WriteField(hpack.HeaderField{Name: k, Value: v})
}
if err := t.writeHeaders(s, t.hBuf, true); err != nil {
t.Close()
return err
}
t.closeStream(s)

4
transport/http_util.go
View File

@ -176,7 +176,7 @@ func newHPACKDecoder() *hpackDecoder {
return d
}
func (d *hpackDecoder) decodeClientHTTP2Headers(s *Stream, frame headerFrame) (endHeaders bool, err error) {
func (d *hpackDecoder) decodeClientHTTP2Headers(frame headerFrame) (endHeaders bool, err error) {
d.err = nil
_, err = d.h.Write(frame.HeaderBlockFragment())
if err != nil {
@ -196,7 +196,7 @@ func (d *hpackDecoder) decodeClientHTTP2Headers(s *Stream, frame headerFrame) (e
return
}
func (d *hpackDecoder) decodeServerHTTP2Headers(s *Stream, frame headerFrame) (endHeaders bool, err error) {
func (d *hpackDecoder) decodeServerHTTP2Headers(frame headerFrame) (endHeaders bool, err error) {
d.err = nil
_, err = d.h.Write(frame.HeaderBlockFragment())
if err != nil {