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nghttpd: Create Request object in hd_before_frame_send_callback 

This is pathological case, but we may get RST_STREAM to the promised
stream while we are sending PUSH_PROMISE. To handle this case,
instantiate Request object before transmission.
This commit is contained in:
Tatsuhiro Tsujikawa 2013-12-09 00:22:01 +09:00
parent 50cda96fa5
commit c3a361fb52
1 changed files with 22 additions and 9 deletions
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31
src/HttpServer.cc
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@ -825,6 +825,23 @@ int htdocs_on_request_recv_callback
return 0;
}
namespace {
int hd_before_frame_send_callback
(nghttp2_session *session, const nghttp2_frame *frame, void *user_data)
{
auto hd = reinterpret_cast<Http2Handler*>(user_data);
if(frame->hd.type == NGHTTP2_PUSH_PROMISE) {
auto stream_id = frame->push_promise.promised_stream_id;
auto req = util::make_unique<Request>(stream_id);
auto nva = http2::sort_nva(frame->push_promise.nva,
frame->push_promise.nvlen);
append_nv(req.get(), nva);
hd->add_stream(stream_id, std::move(req));
}
return 0;
}
} // namespace
namespace {
int hd_on_frame_send_callback
(nghttp2_session *session, const nghttp2_frame *frame,
@ -832,15 +849,10 @@ int hd_on_frame_send_callback
{
auto hd = reinterpret_cast<Http2Handler*>(user_data);
if(frame->hd.type == NGHTTP2_PUSH_PROMISE) {
auto req = util::make_unique<Request>
(frame->push_promise.promised_stream_id);
auto nva = http2::sort_nva(frame->push_promise.nva,
frame->push_promise.nvlen);
append_nv(req.get(), nva);
auto req_ptr = req.get();
auto stream_id = req->stream_id;
hd->add_stream(stream_id, std::move(req));
prepare_response(req_ptr, hd, /*allow_push */ false);
auto stream = hd->get_stream(frame->push_promise.promised_stream_id);
if(stream) {
prepare_response(stream, hd, /*allow_push */ false);
}
}
if(hd->get_config()->verbose) {
print_session_id(hd->session_id());
@ -914,6 +926,7 @@ void fill_callback(nghttp2_session_callbacks& callbacks, const Config *config)
callbacks.recv_callback = hd_recv_callback;
callbacks.on_stream_close_callback = on_stream_close_callback;
callbacks.on_frame_recv_callback = hd_on_frame_recv_callback;
callbacks.before_frame_send_callback = hd_before_frame_send_callback;
callbacks.on_frame_send_callback = hd_on_frame_send_callback;
callbacks.on_data_recv_callback = hd_on_data_recv_callback;
callbacks.on_data_send_callback = hd_on_data_send_callback;