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WebSocketChannel.h
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/*
* Copyright (C) 2019 Apple 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:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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 "DataReference.h"
#include "MessageReceiver.h"
#include "MessageSender.h"
#include "WebPageProxyIdentifier.h"
#include <WebCore/NetworkSendQueue.h>
#include <WebCore/ResourceRequest.h>
#include <WebCore/ResourceResponse.h>
#include <WebCore/ThreadableWebSocketChannel.h>
#include <WebCore/WebSocketChannelInspector.h>
#include <WebCore/WebSocketFrame.h>
#include <wtf/WeakPtr.h>
namespace IPC {
class Connection;
class Decoder;
}
namespace WebKit {
class WebSocketChannel : public IPC::MessageSender, public IPC::MessageReceiver, public WebCore::ThreadableWebSocketChannel, public RefCounted<WebSocketChannel> {
public:
static Ref<WebSocketChannel> create(WebPageProxyIdentifier, WebCore::Document&, WebCore::WebSocketChannelClient&);
~WebSocketChannel();
void didReceiveMessage(IPC::Connection&, IPC::Decoder&);
void networkProcessCrashed();
using RefCounted<WebSocketChannel>::ref;
using RefCounted<WebSocketChannel>::deref;
private:
WebSocketChannel(WebPageProxyIdentifier, WebCore::Document&, WebCore::WebSocketChannelClient&);
static WebCore::NetworkSendQueue createMessageQueue(WebCore::Document&, WebSocketChannel&);
// ThreadableWebSocketChannel
ConnectStatus connect(const URL&, const String& protocol) final;
String subprotocol() final;
String extensions() final;
SendResult send(CString&&) final;
SendResult send(const JSC::ArrayBuffer&, unsigned byteOffset, unsigned byteLength) final;
SendResult send(WebCore::Blob&) final;
unsigned bufferedAmount() const final;
void close(int code, const String& reason) final;
void fail(String&& reason) final;
void disconnect() final;
void suspend() final;
void resume() final;
void refThreadableWebSocketChannel() final { ref(); }
void derefThreadableWebSocketChannel() final { deref(); }
void notifySendFrame(WebCore::WebSocketFrame::OpCode, const uint8_t* data, size_t length);
void logErrorMessage(const String&);
// Message receivers
void didConnect(String&& subprotocol, String&& extensions);
void didReceiveText(String&&);
void didReceiveBinaryData(IPC::DataReference&&);
void didClose(unsigned short code, String&&);
void didReceiveMessageError(String&&);
void didSendHandshakeRequest(WebCore::ResourceRequest&&);
void didReceiveHandshakeResponse(WebCore::ResourceResponse&&);
// MessageSender
IPC::Connection* messageSenderConnection() const final;
uint64_t messageSenderDestinationID() const final;
bool increaseBufferedAmount(size_t);
void decreaseBufferedAmount(size_t);
template<typename T> void sendMessage(T&&, size_t byteLength);
const WebCore::WebSocketChannelInspector* channelInspector() const final { return &m_inspector; }
WebCore::WebSocketChannelIdentifier progressIdentifier() const final { return m_inspector.progressIdentifier(); }
bool hasCreatedHandshake() const final { return !m_url.isNull(); }
bool isConnected() const final { return !m_handshakeResponse.isNull(); }
WebCore::ResourceRequest clientHandshakeRequest(const CookieGetter&) const final { return m_handshakeRequest; }
const WebCore::ResourceResponse& serverHandshakeResponse() const final { return m_handshakeResponse; }
WeakPtr<WebCore::Document> m_document;
WeakPtr<WebCore::WebSocketChannelClient> m_client;
URL m_url;
String m_subprotocol;
String m_extensions;
size_t m_bufferedAmount { 0 };
bool m_isClosing { false };
WebCore::NetworkSendQueue m_messageQueue;
WebCore::WebSocketChannelInspector m_inspector;
WebCore::ResourceRequest m_handshakeRequest;
WebCore::ResourceResponse m_handshakeResponse;
WebPageProxyIdentifier m_webPageProxyID;
};
} // namespace WebKit