| OLD | NEW |
|---|
| (Empty) |
| 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/settings_payload_decoder.h" | |
| 6 | |
| 7 #include "base/logging.h" | |
| 8 #include "net/http2/decoder/decode_buffer.h" | |
| 9 #include "net/http2/decoder/http2_frame_decoder_listener.h" | |
| 10 #include "net/http2/http2_constants.h" | |
| 11 #include "net/http2/http2_structures.h" | |
| 12 | |
| 13 namespace net { | |
| 14 | |
| 15 DecodeStatus SettingsPayloadDecoder::StartDecodingPayload( | |
| 16 FrameDecoderState* state, | |
| 17 DecodeBuffer* db) { | |
| 18 const Http2FrameHeader& frame_header = state->frame_header(); | |
| 19 const uint32_t total_length = frame_header.payload_length; | |
| 20 | |
| 21 DVLOG(2) << "SettingsPayloadDecoder::StartDecodingPayload: " << frame_header; | |
| 22 DCHECK_EQ(Http2FrameType::SETTINGS, frame_header.type); | |
| 23 DCHECK_LE(db->Remaining(), total_length); | |
| 24 DCHECK_EQ(0, frame_header.flags & ~(Http2FrameFlag::FLAG_ACK)); | |
| 25 | |
| 26 if (frame_header.IsAck()) { | |
| 27 if (total_length == 0) { | |
| 28 state->listener()->OnSettingsAck(frame_header); | |
| 29 return DecodeStatus::kDecodeDone; | |
| 30 } else { | |
| 31 state->InitializeRemainders(); | |
| 32 return state->ReportFrameSizeError(); | |
| 33 } | |
| 34 } else { | |
| 35 state->InitializeRemainders(); | |
| 36 state->listener()->OnSettingsStart(frame_header); | |
| 37 return StartDecodingSettings(state, db); | |
| 38 } | |
| 39 } | |
| 40 | |
| 41 DecodeStatus SettingsPayloadDecoder::ResumeDecodingPayload( | |
| 42 FrameDecoderState* state, | |
| 43 DecodeBuffer* db) { | |
| 44 DVLOG(2) << "SettingsPayloadDecoder::ResumeDecodingPayload" | |
| 45 << " remaining_payload=" << state->remaining_payload() | |
| 46 << " db->Remaining=" << db->Remaining(); | |
| 47 DCHECK_EQ(Http2FrameType::SETTINGS, state->frame_header().type); | |
| 48 DCHECK_LE(db->Remaining(), state->frame_header().payload_length); | |
| 49 | |
| 50 DecodeStatus status = | |
| 51 state->ResumeDecodingStructureInPayload(&setting_fields_, db); | |
| 52 if (status == DecodeStatus::kDecodeDone) { | |
| 53 state->listener()->OnSetting(setting_fields_); | |
| 54 return StartDecodingSettings(state, db); | |
| 55 } | |
| 56 return HandleNotDone(state, db, status); | |
| 57 } | |
| 58 | |
| 59 DecodeStatus SettingsPayloadDecoder::StartDecodingSettings( | |
| 60 FrameDecoderState* state, | |
| 61 DecodeBuffer* db) { | |
| 62 DVLOG(2) << "SettingsPayloadDecoder::StartDecodingSettings" | |
| 63 << " remaining_payload=" << state->remaining_payload() | |
| 64 << " db->Remaining=" << db->Remaining(); | |
| 65 while (state->remaining_payload() > 0) { | |
| 66 DecodeStatus status = | |
| 67 state->StartDecodingStructureInPayload(&setting_fields_, db); | |
| 68 if (status == DecodeStatus::kDecodeDone) { | |
| 69 state->listener()->OnSetting(setting_fields_); | |
| 70 continue; | |
| 71 } | |
| 72 return HandleNotDone(state, db, status); | |
| 73 } | |
| 74 DVLOG(2) << "LEAVING SettingsPayloadDecoder::StartDecodingSettings" | |
| 75 << "\n\tdb->Remaining=" << db->Remaining() | |
| 76 << "\n\t remaining_payload=" << state->remaining_payload(); | |
| 77 state->listener()->OnSettingsEnd(); | |
| 78 return DecodeStatus::kDecodeDone; | |
| 79 } | |
| 80 | |
| 81 DecodeStatus SettingsPayloadDecoder::HandleNotDone(FrameDecoderState* state, | |
| 82 DecodeBuffer* db, | |
| 83 DecodeStatus status) { | |
| 84 // Not done decoding the structure. Either we've got more payload to decode, | |
| 85 // or we've run out because the payload is too short, in which case | |
| 86 // OnFrameSizeError will have already been called. | |
| 87 DCHECK( | |
| 88 (status == DecodeStatus::kDecodeInProgress && | |
| 89 state->remaining_payload() > 0) || | |
| 90 (status == DecodeStatus::kDecodeError && state->remaining_payload() == 0)) | |
| 91 << "\n status=" << status | |
| 92 << "; remaining_payload=" << state->remaining_payload() | |
| 93 << "; db->Remaining=" << db->Remaining(); | |
| 94 return status; | |
| 95 } | |
| 96 | |
| 97 } // namespace net | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2554683003:
Revert of Add new HTTP/2 and HPACK decoder in net/http2/. (Closed)
