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http: VLH, very large header test and fixes

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- adding tests using very large passwords in auth
- fixes general http sending to treat h3 like h2, and
  not like http1.1
- eliminate H2_HEADER max definitions and use the commmon
  DYN_HTTP_REQUEST everywhere, different limits do not help
- fix http2 handling of requests denied by nghttp2 on send
  to immediately report the refused stream

Closes #11509
This commit is contained in:
Stefan Eissing 2023-07-24 15:38:04 +02:00 • committed by Daniel Stenberg
parent 3c0a91077c
commit c76df46a19
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GPG key ID: 5CC908FDB71E12C2
5 changed files with 68 additions and 13 deletions
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14
lib/http2.c
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@ -252,7 +252,7 @@ static CURLcode http2_data_setup(struct Curl_cfilter *cf,
H2_STREAM_SEND_CHUNKS, BUFQ_OPT_NONE);
Curl_bufq_initp(&stream->recvbuf, &ctx->stream_bufcp,
H2_STREAM_RECV_CHUNKS, BUFQ_OPT_SOFT_LIMIT);
Curl_dynhds_init(&stream->resp_trailers, 0, DYN_H2_TRAILERS);
Curl_dynhds_init(&stream->resp_trailers, 0, DYN_HTTP_REQUEST);
stream->resp_hds_len = 0;
stream->bodystarted = FALSE;
stream->status_code = -1;
@ -2122,7 +2122,13 @@ static ssize_t cf_h2_send(struct Curl_cfilter *cf, struct Curl_easy *data,
/* Call the nghttp2 send loop and flush to write ALL buffered data,
* headers and/or request body completely out to the network */
result = h2_progress_egress(cf, data);
if(result == CURLE_AGAIN) {
/* if the stream has been closed in egress handling (nghttp2 does that
* when it does not like the headers, for example */
if(stream && stream->closed) {
nwritten = http2_handle_stream_close(cf, data, stream, err);
goto out;
}
else if(result == CURLE_AGAIN) {
blocked = 1;
}
else if(result) {
@ -2130,14 +2136,14 @@ static ssize_t cf_h2_send(struct Curl_cfilter *cf, struct Curl_easy *data,
nwritten = -1;
goto out;
}
else if(!Curl_bufq_is_empty(&stream->sendbuf)) {
else if(stream && !Curl_bufq_is_empty(&stream->sendbuf)) {
/* although we wrote everything that nghttp2 wants to send now,
* there is data left in our stream send buffer unwritten. This may
* be due to the stream's HTTP/2 flow window being exhausted. */
blocked = 1;
}
if(blocked) {
if(stream && blocked) {
/* Unable to send all data, due to connection blocked or H2 window
* exhaustion. Data is left in our stream buffer, or nghttp2's internal
* frame buffer or our network out buffer. */