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/*
* Copyright (C) 2011 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 "ActiveDOMObject.h"
#include "EventTarget.h"
#include "ExceptionOr.h"
#include <wtf/URL.h>
#include "WebSocketChannelClient.h"
#include <wtf/HashSet.h>
#include <wtf/Lock.h>
namespace JSC {
class ArrayBuffer;
class ArrayBufferView;
}
namespace WebCore {
class Blob;
class ThreadableWebSocketChannel;
class WebSocket final : public RefCounted<WebSocket>, public EventTarget, public ActiveDOMObject, private WebSocketChannelClient {
WTF_MAKE_ISO_ALLOCATED(WebSocket);
public:
static ASCIILiteral subprotocolSeparator();
static ExceptionOr<Ref<WebSocket>> create(ScriptExecutionContext&, const String& url);
static ExceptionOr<Ref<WebSocket>> create(ScriptExecutionContext&, const String& url, const String& protocol);
static ExceptionOr<Ref<WebSocket>> create(ScriptExecutionContext&, const String& url, const Vector<String>& protocols);
virtual ~WebSocket();
static HashSet<WebSocket*>& allActiveWebSockets() WTF_REQUIRES_LOCK(s_allActiveWebSocketsLock);
static Lock& allActiveWebSocketsLock() WTF_RETURNS_LOCK(s_allActiveWebSocketsLock);
enum State {
CONNECTING = 0,
OPEN = 1,
CLOSING = 2,
CLOSED = 3
};
ExceptionOr<void> connect(const String& url);
ExceptionOr<void> connect(const String& url, const String& protocol);
ExceptionOr<void> connect(const String& url, const Vector<String>& protocols);
ExceptionOr<void> send(const String& message);
ExceptionOr<void> send(JSC::ArrayBuffer&);
ExceptionOr<void> send(JSC::ArrayBufferView&);
ExceptionOr<void> send(Blob&);
ExceptionOr<void> close(std::optional<unsigned short> code, const String& reason);
RefPtr<ThreadableWebSocketChannel> channel() const;
const URL& url() const;
State readyState() const;
unsigned bufferedAmount() const;
String protocol() const;
String extensions() const;
enum class BinaryType : bool { Blob, Arraybuffer };
BinaryType binaryType() const { return m_binaryType; }
ExceptionOr<void> setBinaryType(BinaryType);
ScriptExecutionContext* scriptExecutionContext() const final;
using RefCounted::ref;
using RefCounted::deref;
private:
explicit WebSocket(ScriptExecutionContext&);
void dispatchErrorEventIfNeeded();
void contextDestroyed() final;
void suspend(ReasonForSuspension) final;
void resume() final;
void stop() final;
const char* activeDOMObjectName() const final;
EventTargetInterface eventTargetInterface() const final;
void refEventTarget() final { ref(); }
void derefEventTarget() final { deref(); }
void didConnect() final;
void didReceiveMessage(String&& message) final;
void didReceiveBinaryData(Vector<uint8_t>&&) final;
void didReceiveMessageError(String&& reason) final;
void didUpdateBufferedAmount(unsigned bufferedAmount) final;
void didStartClosingHandshake() final;
void didClose(unsigned unhandledBufferedAmount, ClosingHandshakeCompletionStatus, unsigned short code, const String& reason) final;
void didUpgradeURL() final;
size_t getFramingOverhead(size_t payloadSize);
void failAsynchronously();
static Lock s_allActiveWebSocketsLock;
RefPtr<ThreadableWebSocketChannel> m_channel;
State m_state { CONNECTING };
URL m_url;
unsigned m_bufferedAmount { 0 };
unsigned m_bufferedAmountAfterClose { 0 };
BinaryType m_binaryType { BinaryType::Blob };
String m_subprotocol;
String m_extensions;
bool m_dispatchedErrorEvent { false };
RefPtr<PendingActivity<WebSocket>> m_pendingActivity;
};
} // namespace WebCore
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