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net/http: update bundled http2

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Updates bundled x/net/http2 to git rev cffdcf67 for:

    http2: use GetBody unconditionally on Transport retry, when available
    https://golang.org/cl/123476

    http2: a closed stream cannot receive data
    https://golang.org/cl/111676

Updates #25009
Updates #25023

Change-Id: I84f50cc50c0fa5a3c34f0037a9cb1ef468e5f0d9
Reviewed-on: https://go-review.googlesource.com/123515
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Brad Fitzpatrick 2018-07-12 05:02:36 +00:00
parent 3df1f00bfc
commit a7bcb5390d
1 changed files with 28 additions and 13 deletions
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41
src/net/http/h2_bundle.go
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@ -5320,6 +5320,12 @@ func (sc *http2serverConn) processData(f *http2DataFrame) error {
// type PROTOCOL_ERROR."
return http2ConnectionError(http2ErrCodeProtocol)
}
// RFC 7540, sec 6.1: If a DATA frame is received whose stream is not in
// "open" or "half-closed (local)" state, the recipient MUST respond with a
// stream error (Section 5.4.2) of type STREAM_CLOSED.
if state == http2stateClosed {
return http2streamError(id, http2ErrCodeStreamClosed)
}
if st == nil || state != http2stateOpen || st.gotTrailerHeader || st.resetQueued {
// This includes sending a RST_STREAM if the stream is
// in stateHalfClosedLocal (which currently means that
@ -7022,27 +7028,36 @@ func http2shouldRetryRequest(req *Request, err error, afterBodyWrite bool) (*Req
if !http2canRetryError(err) {
return nil, err
}
if !afterBodyWrite {
return req, nil
}
// If the Body is nil (or http.NoBody), it's safe to reuse
// this request and its Body.
if req.Body == nil || http2reqBodyIsNoBody(req.Body) {
return req, nil
}
// Otherwise we depend on the Request having its GetBody
// func defined.
// If the request body can be reset back to its original
// state via the optional req.GetBody, do that.
getBody := http2reqGetBody(req) // Go 1.8: getBody = req.GetBody
if getBody == nil {
return nil, fmt.Errorf("http2: Transport: cannot retry err [%v] after Request.Body was written; define Request.GetBody to avoid this error", err)
if getBody != nil {
// TODO: consider a req.Body.Close here? or audit that all caller paths do?
body, err := getBody()
if err != nil {
return nil, err
}
newReq := *req
newReq.Body = body
return &newReq, nil
}
body, err := getBody()
if err != nil {
return nil, err
// The Request.Body can't reset back to the beginning, but we
// don't seem to have started to read from it yet, so reuse
// the request directly. The "afterBodyWrite" means the
// bodyWrite process has started, which becomes true before
// the first Read.
if !afterBodyWrite {
return req, nil
}
newReq := *req
newReq.Body = body
return &newReq, nil
return nil, fmt.Errorf("http2: Transport: cannot retry err [%v] after Request.Body was written; define Request.GetBody to avoid this error", err)
}
func http2canRetryError(err error) bool {