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Diffstat (limited to 'chromium/net/third_party/quiche/src/quiche/http2/decoder/payload_decoders/push_promise_payload_decoder.h')
-rw-r--r-- | chromium/net/third_party/quiche/src/quiche/http2/decoder/payload_decoders/push_promise_payload_decoder.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/chromium/net/third_party/quiche/src/quiche/http2/decoder/payload_decoders/push_promise_payload_decoder.h b/chromium/net/third_party/quiche/src/quiche/http2/decoder/payload_decoders/push_promise_payload_decoder.h new file mode 100644 index 00000000000..f5bf53d6dcc --- /dev/null +++ b/chromium/net/third_party/quiche/src/quiche/http2/decoder/payload_decoders/push_promise_payload_decoder.h @@ -0,0 +1,66 @@ +// Copyright 2016 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#ifndef QUICHE_HTTP2_DECODER_PAYLOAD_DECODERS_PUSH_PROMISE_PAYLOAD_DECODER_H_ +#define QUICHE_HTTP2_DECODER_PAYLOAD_DECODERS_PUSH_PROMISE_PAYLOAD_DECODER_H_ + +// Decodes the payload of a PUSH_PROMISE frame. + +#include "quiche/http2/decoder/decode_buffer.h" +#include "quiche/http2/decoder/decode_status.h" +#include "quiche/http2/decoder/frame_decoder_state.h" +#include "quiche/http2/http2_structures.h" +#include "quiche/common/platform/api/quiche_export.h" + +namespace http2 { +namespace test { +class PushPromisePayloadDecoderPeer; +} // namespace test + +class QUICHE_EXPORT_PRIVATE PushPromisePayloadDecoder { + public: + // States during decoding of a PUSH_PROMISE frame. + enum class PayloadState { + // The frame is padded and we need to read the PAD_LENGTH field (1 byte). + kReadPadLength, + + // Ready to start decoding the fixed size fields of the PUSH_PROMISE + // frame into push_promise_fields_. + kStartDecodingPushPromiseFields, + + // The decoder has already called OnPushPromiseStart, and is now reporting + // the HPACK block fragment to the listener's OnHpackFragment method. + kReadPayload, + + // The decoder has finished with the HPACK block fragment, and is now + // ready to skip the trailing padding, if the frame has any. + kSkipPadding, + + // The fixed size fields weren't all available when the decoder first tried + // to decode them (state kStartDecodingPushPromiseFields); this state + // resumes the decoding when ResumeDecodingPayload is called later. + kResumeDecodingPushPromiseFields, + }; + + // Starts the decoding of a PUSH_PROMISE frame's payload, and completes it if + // the entire payload is in the provided decode buffer. + DecodeStatus StartDecodingPayload(FrameDecoderState* state, DecodeBuffer* db); + + // Resumes decoding a PUSH_PROMISE frame's payload that has been split across + // decode buffers. + DecodeStatus ResumeDecodingPayload(FrameDecoderState* state, + DecodeBuffer* db); + + private: + friend class test::PushPromisePayloadDecoderPeer; + + void ReportPushPromise(FrameDecoderState* state); + + PayloadState payload_state_; + Http2PushPromiseFields push_promise_fields_; +}; + +} // namespace http2 + +#endif // QUICHE_HTTP2_DECODER_PAYLOAD_DECODERS_PUSH_PROMISE_PAYLOAD_DECODER_H_ |