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set the Content-Length for HTTP/3 responses

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This commit is contained in:
Marten Seemann 2021-03-15 12:58:28 +08:00
parent 3bce408c8d
commit 29f02e1bda
2 changed files with 50 additions and 7 deletions
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15
http3/client.go
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@ -323,6 +323,21 @@ func (c *client) doRequest(
respBody := newResponseBody(str, reqDone, func() {
c.session.CloseWithError(quic.ErrorCode(errorFrameUnexpected), "")
})
// Rules for when to set Content-Length are defined in https://tools.ietf.org/html/rfc7230#section-3.3.2.
_, hasTransferEncoding := res.Header["Transfer-Encoding"]
isInformational := res.StatusCode >= 100 && res.StatusCode < 200
isNoContent := res.StatusCode == 204
isSuccessfulConnect := req.Method == http.MethodConnect && res.StatusCode >= 200 && res.StatusCode < 300
if !hasTransferEncoding && !isInformational && !isNoContent && !isSuccessfulConnect {
res.ContentLength = -1
if clens, ok := res.Header["Content-Length"]; ok && len(clens) == 1 {
if clen64, err := strconv.ParseInt(clens[0], 10, 64); err == nil {
res.ContentLength = clen64
}
}
}
if requestGzip && res.Header.Get("Content-Encoding") == "gzip" {
res.Header.Del("Content-Encoding")
res.Header.Del("Content-Length")