mirror of
https://github.com/klzgrad/naiveproxy.git
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112 lines
3.6 KiB
C++
112 lines
3.6 KiB
C++
// Copyright 2017 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "net/quic/http/decoder/quic_http_decode_structures.h"
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#include <cstdint>
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#include "base/logging.h"
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#include "net/quic/http/decoder/quic_http_decode_buffer.h"
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#include "net/quic/http/quic_http_constants.h"
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namespace net {
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// QuicHttpFrameHeader decoding:
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void DoDecode(QuicHttpFrameHeader* out, QuicHttpDecodeBuffer* b) {
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DCHECK_NE(nullptr, out);
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DCHECK_NE(nullptr, b);
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DCHECK_LE(QuicHttpFrameHeader::EncodedSize(), b->Remaining());
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out->payload_length = b->DecodeUInt24();
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out->type = static_cast<QuicHttpFrameType>(b->DecodeUInt8());
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out->flags = static_cast<QuicHttpFrameFlag>(b->DecodeUInt8());
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out->stream_id = b->DecodeUInt31();
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}
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// QuicHttpPriorityFields decoding:
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void DoDecode(QuicHttpPriorityFields* out, QuicHttpDecodeBuffer* b) {
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DCHECK_NE(nullptr, out);
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DCHECK_NE(nullptr, b);
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DCHECK_LE(QuicHttpPriorityFields::EncodedSize(), b->Remaining());
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uint32_t stream_id_and_flag = b->DecodeUInt32();
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out->stream_dependency = stream_id_and_flag & QuicHttpStreamIdMask();
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if (out->stream_dependency == stream_id_and_flag) {
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out->is_exclusive = false;
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} else {
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out->is_exclusive = true;
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}
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// Note that chars are automatically promoted to ints during arithmetic,
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// so 255 + 1 doesn't end up as zero.
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out->weight = b->DecodeUInt8() + 1;
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}
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// QuicHttpRstStreamFields decoding:
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void DoDecode(QuicHttpRstStreamFields* out, QuicHttpDecodeBuffer* b) {
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DCHECK_NE(nullptr, out);
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DCHECK_NE(nullptr, b);
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DCHECK_LE(QuicHttpRstStreamFields::EncodedSize(), b->Remaining());
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out->error_code = static_cast<QuicHttpErrorCode>(b->DecodeUInt32());
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}
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// QuicHttpSettingFields decoding:
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void DoDecode(QuicHttpSettingFields* out, QuicHttpDecodeBuffer* b) {
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DCHECK_NE(nullptr, out);
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DCHECK_NE(nullptr, b);
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DCHECK_LE(QuicHttpSettingFields::EncodedSize(), b->Remaining());
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out->parameter = static_cast<QuicHttpSettingsParameter>(b->DecodeUInt16());
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out->value = b->DecodeUInt32();
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}
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// QuicHttpPushPromiseFields decoding:
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void DoDecode(QuicHttpPushPromiseFields* out, QuicHttpDecodeBuffer* b) {
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DCHECK_NE(nullptr, out);
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DCHECK_NE(nullptr, b);
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DCHECK_LE(QuicHttpPushPromiseFields::EncodedSize(), b->Remaining());
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out->promised_stream_id = b->DecodeUInt31();
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}
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// QuicHttpPingFields decoding:
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void DoDecode(QuicHttpPingFields* out, QuicHttpDecodeBuffer* b) {
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DCHECK_NE(nullptr, out);
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DCHECK_NE(nullptr, b);
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DCHECK_LE(QuicHttpPingFields::EncodedSize(), b->Remaining());
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memcpy(out->opaque_bytes, b->cursor(), QuicHttpPingFields::EncodedSize());
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b->AdvanceCursor(QuicHttpPingFields::EncodedSize());
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}
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// QuicHttpGoAwayFields decoding:
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void DoDecode(QuicHttpGoAwayFields* out, QuicHttpDecodeBuffer* b) {
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DCHECK_NE(nullptr, out);
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DCHECK_NE(nullptr, b);
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DCHECK_LE(QuicHttpGoAwayFields::EncodedSize(), b->Remaining());
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out->last_stream_id = b->DecodeUInt31();
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out->error_code = static_cast<QuicHttpErrorCode>(b->DecodeUInt32());
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}
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// QuicHttpWindowUpdateFields decoding:
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void DoDecode(QuicHttpWindowUpdateFields* out, QuicHttpDecodeBuffer* b) {
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DCHECK_NE(nullptr, out);
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DCHECK_NE(nullptr, b);
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DCHECK_LE(QuicHttpWindowUpdateFields::EncodedSize(), b->Remaining());
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out->window_size_increment = b->DecodeUInt31();
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}
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// QuicHttpAltSvcFields decoding:
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void DoDecode(QuicHttpAltSvcFields* out, QuicHttpDecodeBuffer* b) {
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DCHECK_NE(nullptr, out);
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DCHECK_NE(nullptr, b);
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DCHECK_LE(QuicHttpAltSvcFields::EncodedSize(), b->Remaining());
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out->origin_length = b->DecodeUInt16();
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}
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} // namespace net
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