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/*
* Copyright (C) 2012 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <wtf/text/WTFString.h>
namespace WebCore {
struct WebSocketFrame {
// RFC6455 opcodes.
enum OpCode {
OpCodeContinuation = 0x0,
OpCodeText = 0x1,
OpCodeBinary = 0x2,
OpCodeClose = 0x8,
OpCodePing = 0x9,
OpCodePong = 0xA,
OpCodeInvalid = 0x10
};
enum ParseFrameResult {
FrameOK,
FrameIncomplete,
FrameError
};
static bool isNonControlOpCode(OpCode opCode) { return opCode == OpCodeContinuation || opCode == OpCodeText || opCode == OpCodeBinary; }
static bool isControlOpCode(OpCode opCode) { return opCode == OpCodeClose || opCode == OpCodePing || opCode == OpCodePong; }
static bool isReservedOpCode(OpCode opCode) { return !isNonControlOpCode(opCode) && !isControlOpCode(opCode); }
static bool needsExtendedLengthField(size_t payloadLength);
static ParseFrameResult parseFrame(char* data, size_t dataLength, WebSocketFrame&, const char*& frameEnd, String& errorString); // May modify part of data to unmask the frame.
WEBCORE_EXPORT WebSocketFrame(OpCode = OpCodeInvalid, bool final = false, bool compress = false, bool masked = false, const char* payload = nullptr, size_t payloadLength = 0);
void makeFrameData(Vector<char>& frameData);
OpCode opCode;
bool final;
bool compress;
bool reserved2;
bool reserved3;
bool masked;
const char* payload;
size_t payloadLength;
};
} // namespace WebCore