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1 // Copyright 2016 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "net/http2/decoder/payload_decoders/unknown_payload_decoder.h" | |
6 | |
7 #include <stddef.h> | |
8 | |
9 #include "base/logging.h" | |
10 #include "net/http2/decoder/decode_buffer.h" | |
11 #include "net/http2/decoder/http2_frame_decoder_listener.h" | |
12 #include "net/http2/http2_constants.h" | |
13 #include "net/http2/http2_structures.h" | |
14 | |
15 namespace net { | |
16 | |
17 DecodeStatus UnknownPayloadDecoder::StartDecodingPayload( | |
18 FrameDecoderState* state, | |
19 DecodeBuffer* db) { | |
20 const Http2FrameHeader& frame_header = state->frame_header(); | |
21 | |
22 DVLOG(2) << "UnknownPayloadDecoder::StartDecodingPayload: " << frame_header; | |
23 DCHECK(!IsSupportedHttp2FrameType(frame_header.type)) << frame_header; | |
24 DCHECK_LE(db->Remaining(), frame_header.payload_length); | |
25 | |
26 state->InitializeRemainders(); | |
27 state->listener()->OnUnknownStart(frame_header); | |
28 return ResumeDecodingPayload(state, db); | |
29 } | |
30 | |
31 DecodeStatus UnknownPayloadDecoder::ResumeDecodingPayload( | |
32 FrameDecoderState* state, | |
33 DecodeBuffer* db) { | |
34 DVLOG(2) << "UnknownPayloadDecoder::ResumeDecodingPayload " | |
35 << "remaining_payload=" << state->remaining_payload() | |
36 << "; db->Remaining=" << db->Remaining(); | |
37 DCHECK(!IsSupportedHttp2FrameType(state->frame_header().type)) | |
38 << state->frame_header(); | |
39 DCHECK_LE(state->remaining_payload(), state->frame_header().payload_length); | |
40 DCHECK_LE(db->Remaining(), state->remaining_payload()); | |
41 | |
42 size_t avail = db->Remaining(); | |
43 if (avail > 0) { | |
44 state->listener()->OnUnknownPayload(db->cursor(), avail); | |
45 db->AdvanceCursor(avail); | |
46 state->ConsumePayload(avail); | |
47 } | |
48 if (state->remaining_payload() == 0) { | |
49 state->listener()->OnUnknownEnd(); | |
50 return DecodeStatus::kDecodeDone; | |
51 } | |
52 return DecodeStatus::kDecodeInProgress; | |
53 } | |
54 | |
55 } // namespace net | |
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