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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.
*/
#ifndef WorkerWebSocketChannel_h
#define WorkerWebSocketChannel_h
#include "core/frame/ConsoleTypes.h"
#include "modules/websockets/WebSocketChannel.h"
#include "modules/websockets/WebSocketChannelClient.h"
#include "platform/heap/Handle.h"
#include "wtf/Assertions.h"
#include "wtf/Forward.h"
#include "wtf/OwnPtr.h"
#include "wtf/RefPtr.h"
#include "wtf/Vector.h"
#include "wtf/text/WTFString.h"
#include <stdint.h>
namespace blink {
class BlobDataHandle;
class KURL;
class ExecutionContext;
class ExecutionContextTask;
class WebSocketChannelSyncHelper;
class WorkerGlobalScope;
class WorkerLoaderProxy;
class WorkerWebSocketChannel final : public WebSocketChannel {
WTF_MAKE_NONCOPYABLE(WorkerWebSocketChannel);
public:
static WebSocketChannel* create(WorkerGlobalScope& workerGlobalScope, WebSocketChannelClient* client, const String& sourceURL, unsigned lineNumber)
{
return new WorkerWebSocketChannel(workerGlobalScope, client, sourceURL, lineNumber);
}
virtual ~WorkerWebSocketChannel();
// WebSocketChannel functions.
virtual bool connect(const KURL&, const String& protocol) override;
virtual void send(const String& message) override;
virtual void send(const DOMArrayBuffer&, unsigned byteOffset, unsigned byteLength) override;
virtual void send(PassRefPtr<BlobDataHandle>) override;
virtual void send(PassOwnPtr<Vector<char> >) override
{
ASSERT_NOT_REACHED();
}
virtual void close(int code, const String& reason) override;
virtual void fail(const String& reason, MessageLevel, const String&, unsigned) override;
virtual void disconnect() override; // Will suppress didClose().
virtual void trace(Visitor*) override;
class Bridge;
// Allocated in the worker thread, but used in the main thread.
class Peer final : public GarbageCollectedFinalized<Peer>, public WebSocketChannelClient {
USING_GARBAGE_COLLECTED_MIXIN(Peer);
WTF_MAKE_NONCOPYABLE(Peer);
public:
Peer(Bridge*, WorkerLoaderProxy&, WebSocketChannelSyncHelper*);
virtual ~Peer();
// sourceURLAtConnection and lineNumberAtConnection parameters may
// be shown when the connection fails.
static void initialize(ExecutionContext* executionContext, Peer* peer, const String& sourceURLAtConnection, unsigned lineNumberAtConnection)
{
peer->initializeInternal(executionContext, sourceURLAtConnection, lineNumberAtConnection);
}
void connect(const KURL&, const String& protocol);
void send(const String& message);
void sendArrayBuffer(PassOwnPtr<Vector<char> >);
void sendBlob(PassRefPtr<BlobDataHandle>);
void close(int code, const String& reason);
void fail(const String& reason, MessageLevel, const String& sourceURL, unsigned lineNumber);
void disconnect();
virtual void trace(Visitor*) override;
// WebSocketChannelClient functions.
virtual void didConnect(const String& subprotocol, const String& extensions) override;
virtual void didReceiveTextMessage(const String& payload) override;
virtual void didReceiveBinaryMessage(PassOwnPtr<Vector<char> >) override;
virtual void didConsumeBufferedAmount(uint64_t) override;
virtual void didStartClosingHandshake() override;
virtual void didClose(ClosingHandshakeCompletionStatus, unsigned short code, const String& reason) override;
virtual void didError() override;
private:
void initializeInternal(ExecutionContext*, const String& sourceURLAtConnection, unsigned lineNumberAtConnection);
Member<Bridge> m_bridge;
WorkerLoaderProxy& m_loaderProxy;
Member<WebSocketChannel> m_mainWebSocketChannel;
Member<WebSocketChannelSyncHelper> m_syncHelper;
};
// Bridge for Peer. Running on the worker thread.
class Bridge final : public GarbageCollectedFinalized<Bridge> {
WTF_MAKE_NONCOPYABLE(Bridge);
public:
Bridge(WebSocketChannelClient*, WorkerGlobalScope&);
~Bridge();
// sourceURLAtConnection and lineNumberAtConnection parameters may
// be shown when the connection fails.
void initialize(const String& sourceURLAtConnection, unsigned lineNumberAtConnection);
bool connect(const KURL&, const String& protocol);
void send(const String& message);
void send(const DOMArrayBuffer&, unsigned byteOffset, unsigned byteLength);
void send(PassRefPtr<BlobDataHandle>);
void close(int code, const String& reason);
void fail(const String& reason, MessageLevel, const String& sourceURL, unsigned lineNumber);
void disconnect();
// Returns null when |disconnect| has already been called.
WebSocketChannelClient* client() { return m_client; }
void trace(Visitor*);
private:
// Returns false if shutdown event is received before method completion.
bool waitForMethodCompletion(PassOwnPtr<ExecutionContextTask>);
Member<WebSocketChannelClient> m_client;
RefPtrWillBeMember<WorkerGlobalScope> m_workerGlobalScope;
WorkerLoaderProxy& m_loaderProxy;
Member<WebSocketChannelSyncHelper> m_syncHelper;
Member<Peer> m_peer;
};
private:
WorkerWebSocketChannel(WorkerGlobalScope&, WebSocketChannelClient*, const String& sourceURL, unsigned lineNumber);
Member<Bridge> m_bridge;
String m_sourceURLAtConnection;
unsigned m_lineNumberAtConnection;
};
} // namespace blink
#endif // WorkerWebSocketChannel_h
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