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Unified Diff: net/http2/decoder/payload_decoders/push_promise_payload_decoder.h

Issue 2293613002: Add new HTTP/2 and HPACK decoder in net/http2/. (Closed)
Patch Set: Replace LOG(INFO) by VLOG(2) in DecodeBufferTest.SlowDecodeTestStruct so that trybots do not fail. Created 4 years ago
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Index: net/http2/decoder/payload_decoders/push_promise_payload_decoder.h
diff --git a/net/http2/decoder/payload_decoders/push_promise_payload_decoder.h b/net/http2/decoder/payload_decoders/push_promise_payload_decoder.h
new file mode 100644
index 0000000000000000000000000000000000000000..fe6c52327ddf0d72fc4cd3ea5a04728000b7617d
--- /dev/null
+++ b/net/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 NET_HTTP2_DECODER_PAYLOAD_DECODERS_PUSH_PROMISE_PAYLOAD_DECODER_H_
+#define NET_HTTP2_DECODER_PAYLOAD_DECODERS_PUSH_PROMISE_PAYLOAD_DECODER_H_
+
+// Decodes the payload of a PUSH_PROMISE frame.
+
+#include "net/base/net_export.h"
+#include "net/http2/decoder/decode_buffer.h"
+#include "net/http2/decoder/decode_status.h"
+#include "net/http2/decoder/frame_decoder_state.h"
+#include "net/http2/http2_structures.h"
+
+namespace net {
+namespace test {
+class PushPromisePayloadDecoderPeer;
+} // namespace test
+
+class NET_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 net
+
+#endif // NET_HTTP2_DECODER_PAYLOAD_DECODERS_PUSH_PROMISE_PAYLOAD_DECODER_H_

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