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31 #ifndef DocumentWebSocketChannel_h
32 #define DocumentWebSocketChannel_h
34 #include "core/dom/ContextLifecycleObserver.h"
35 #include "core/fileapi/Blob.h"
36 #include "core/fileapi/FileError.h"
37 #include "core/frame/ConsoleTypes.h"
38 #include "modules/websockets/WebSocketChannel.h"
39 #include "platform/weborigin/KURL.h"
40 #include "public/platform/WebSocketHandle.h"
41 #include "public/platform/WebSocketHandleClient.h"
42 #include "wtf/ArrayBuffer.h"
43 #include "wtf/Deque.h"
44 #include "wtf/FastAllocBase.h"
45 #include "wtf/OwnPtr.h"
46 #include "wtf/PassOwnPtr.h"
47 #include "wtf/PassRefPtr.h"
48 #include "wtf/RefPtr.h"
49 #include "wtf/Vector.h"
50 #include "wtf/text/CString.h"
51 #include "wtf/text/WTFString.h"
56 class WebSocketHandshakeRequest;
57 class WebSocketHandshakeRequestInfo;
58 class WebSocketHandshakeResponseInfo;
60 // This class is a WebSocketChannel subclass that works with a Document in a
61 // DOMWindow (i.e. works in the main thread).
62 class DocumentWebSocketChannel final : public WebSocketChannel, public WebSocketHandleClient, public ContextLifecycleObserver {
64 // You can specify the source file and the line number information
65 // explicitly by passing the last parameter.
66 // In the usual case, they are set automatically and you don't have to
68 // Specify handle explicitly only in tests.
69 static DocumentWebSocketChannel* create(ExecutionContext* context, WebSocketChannelClient* client, const String& sourceURL = String(), unsigned lineNumber = 0, WebSocketHandle *handle = 0)
71 return new DocumentWebSocketChannel(context, client, sourceURL, lineNumber, handle);
73 virtual ~DocumentWebSocketChannel();
75 // WebSocketChannel functions.
76 virtual bool connect(const KURL&, const String& protocol) override;
77 virtual void send(const String& message) override;
78 virtual void send(const ArrayBuffer&, unsigned byteOffset, unsigned byteLength) override;
79 virtual void send(PassRefPtr<BlobDataHandle>) override;
80 virtual void send(PassOwnPtr<Vector<char> > data) override;
81 // Start closing handshake. Use the CloseEventCodeNotSpecified for the code
82 // argument to omit payload.
83 virtual void close(int code, const String& reason) override;
84 virtual void fail(const String& reason, MessageLevel, const String&, unsigned lineNumber) override;
85 virtual void disconnect() override;
87 virtual void suspend() override;
88 virtual void resume() override;
90 virtual void trace(Visitor*) override;
96 MessageTypeArrayBuffer,
102 explicit Message(const String&);
103 explicit Message(PassRefPtr<BlobDataHandle>);
104 explicit Message(PassRefPtr<ArrayBuffer>);
105 explicit Message(PassOwnPtr<Vector<char> >);
106 Message(unsigned short code, const String& reason);
111 RefPtr<BlobDataHandle> blobDataHandle;
112 RefPtr<ArrayBuffer> arrayBuffer;
113 OwnPtr<Vector<char> > vectorData;
118 struct ReceivedMessage {
125 DocumentWebSocketChannel(ExecutionContext*, WebSocketChannelClient*, const String&, unsigned, WebSocketHandle*);
127 void flowControlIfNecessary();
128 void failAsError(const String& reason) { fail(reason, ErrorMessageLevel, m_sourceURLAtConstruction, m_lineNumberAtConstruction); }
129 void abortAsyncOperations();
130 void handleDidClose(bool wasClean, unsigned short code, const String& reason);
131 Document* document(); // can be called only when m_identifier > 0.
133 // WebSocketHandleClient functions.
134 virtual void didConnect(WebSocketHandle*, bool fail, const WebString& selectedProtocol, const WebString& extensions) override;
135 virtual void didStartOpeningHandshake(WebSocketHandle*, const WebSocketHandshakeRequestInfo&) override;
136 virtual void didFinishOpeningHandshake(WebSocketHandle*, const WebSocketHandshakeResponseInfo&) override;
137 virtual void didFail(WebSocketHandle*, const WebString& message) override;
138 virtual void didReceiveData(WebSocketHandle*, bool fin, WebSocketHandle::MessageType, const char* data, size_t /* size */) override;
139 virtual void didClose(WebSocketHandle*, bool wasClean, unsigned short code, const WebString& reason) override;
140 virtual void didReceiveFlowControl(WebSocketHandle*, int64_t quota) override;
141 virtual void didStartClosingHandshake(WebSocketHandle*) override;
143 // Methods for BlobLoader.
144 void didFinishLoadingBlob(PassRefPtr<ArrayBuffer>);
145 void didFailLoadingBlob(FileError::ErrorCode);
147 // LifecycleObserver functions.
148 virtual void contextDestroyed() override
150 // In oilpan we cannot assume this channel's finalizer has been called
151 // before the document it is observing is dead and finalized since there
152 // is no eager finalization. Instead the finalization happens at the
153 // next GC which could be long enough after the Peer::destroy call for
154 // the context (ie. Document) to be dead too. If the context's finalizer
155 // is run first this method gets called. Instead we assert the channel
156 // has been disconnected which happens in Peer::destroy.
159 ASSERT(!m_identifier);
160 ContextLifecycleObserver::contextDestroyed();
163 // m_handle is a handle of the connection.
164 // m_handle == 0 means this channel is closed.
165 OwnPtr<WebSocketHandle> m_handle;
167 // m_client can be deleted while this channel is alive, but this class
168 // expects that disconnect() is called before the deletion.
169 Member<WebSocketChannelClient> m_client;
171 // m_identifier > 0 means calling scriptContextExecution() returns a Document.
172 unsigned long m_identifier;
173 Member<BlobLoader> m_blobLoader;
174 Deque<OwnPtr<Message> > m_messages;
175 Vector<char> m_receivingMessageData;
177 bool m_receivingMessageTypeIsText;
178 int64_t m_sendingQuota;
179 int64_t m_receivedDataSizeForFlowControl;
180 size_t m_sentSizeOfTopMessage;
182 String m_sourceURLAtConstruction;
183 unsigned m_lineNumberAtConstruction;
184 RefPtr<WebSocketHandshakeRequest> m_handshakeRequest;
186 static const int64_t receivedDataSizeForFlowControlHighWaterMark = 1 << 15;
191 #endif // DocumentWebSocketChannel_h