chromium/net/websockets/websocket_frame_parser.cc

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "net/websockets/websocket_frame_parser.h"

#include <algorithm>
#include <ostream>
#include <utility>
#include <vector>

#include "base/check.h"
#include "base/check_op.h"
#include "base/containers/extend.h"
#include "base/containers/span.h"
#include "base/logging.h"
#include "base/numerics/byte_conversions.h"
#include "net/websockets/websocket_frame.h"

namespace {

constexpr uint8_t kFinalBit = …;
constexpr uint8_t kReserved1Bit = …;
constexpr uint8_t kReserved2Bit = …;
constexpr uint8_t kReserved3Bit = …;
constexpr uint8_t kOpCodeMask = …;
constexpr uint8_t kMaskBit = …;
constexpr uint8_t kPayloadLengthMask = …;
constexpr uint64_t kMaxPayloadLengthWithoutExtendedLengthField = …;
constexpr uint64_t kPayloadLengthWithTwoByteExtendedLengthField = …;
constexpr uint64_t kPayloadLengthWithEightByteExtendedLengthField = …;
constexpr size_t kMaximumFrameHeaderSize = …;

}  // namespace.

namespace net {

WebSocketFrameParser::WebSocketFrameParser() = default;

WebSocketFrameParser::~WebSocketFrameParser() = default;

bool WebSocketFrameParser::Decode(
    base::span<const uint8_t> data_span,
    std::vector<std::unique_ptr<WebSocketFrameChunk>>* frame_chunks) { … }

size_t WebSocketFrameParser::DecodeFrameHeader(base::span<const uint8_t> data) { … }

std::unique_ptr<WebSocketFrameChunk> WebSocketFrameParser::DecodeFramePayload(
    bool first_chunk,
    base::span<const uint8_t>* data) { … }

}  // namespace net