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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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