1 /*
2 * Copyright (C) 2009 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 * * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include "config.h"
32 #include "web/SharedWorkerRepositoryClientImpl.h"
33
34 #include "bindings/core/v8/ExceptionMessages.h"
35 #include "bindings/core/v8/ExceptionState.h"
36 #include "core/dom/ExceptionCode.h"
37 #include "core/dom/ExecutionContext.h"
38 #include "core/events/Event.h"
39 #include "core/frame/csp/ContentSecurityPolicy.h"
40 #include "core/inspector/InspectorInstrumentation.h"
41 #include "core/workers/SharedWorker.h"
42 #include "core/workers/WorkerScriptLoader.h"
43 #include "core/workers/WorkerScriptLoaderClient.h"
44 #include "platform/network/ResourceResponse.h"
45 #include "public/platform/WebMessagePortChannel.h"
46 #include "public/platform/WebString.h"
47 #include "public/platform/WebURL.h"
48 #include "public/web/WebContentSecurityPolicy.h"
49 #include "public/web/WebFrameClient.h"
50 #include "public/web/WebKit.h"
51 #include "public/web/WebSharedWorker.h"
52 #include "public/web/WebSharedWorkerRepositoryClient.h"
53 #include "web/WebLocalFrameImpl.h"
54
55 namespace blink {
56
57 // Callback class that keeps the SharedWorker and WebSharedWorker objects alive while connecting.
58 class SharedWorkerConnector : private WebSharedWorkerConnector::ConnectListener {
59 public:
SharedWorkerConnector(PassRefPtrWillBeRawPtr<SharedWorker> worker,const KURL & url,const String & name,PassOwnPtr<WebMessagePortChannel> channel,PassOwnPtr<WebSharedWorkerConnector> webWorkerConnector)60 SharedWorkerConnector(PassRefPtrWillBeRawPtr<SharedWorker> worker, const KURL& url, const String& name, PassOwnPtr<WebMessagePortChannel> channel, PassOwnPtr<WebSharedWorkerConnector> webWorkerConnector)
61 : m_worker(worker)
62 , m_url(url)
63 , m_name(name)
64 , m_webWorkerConnector(webWorkerConnector)
65 , m_channel(channel) { }
66
67 virtual ~SharedWorkerConnector();
68 void connect();
69
70 private:
71 // WebSharedWorkerConnector::ConnectListener overrides.
72 virtual void connected() OVERRIDE;
73 virtual void scriptLoadFailed() OVERRIDE;
74
75 RefPtrWillBePersistent<SharedWorker> m_worker;
76 KURL m_url;
77 String m_name;
78 OwnPtr<WebSharedWorkerConnector> m_webWorkerConnector;
79 OwnPtr<WebMessagePortChannel> m_channel;
80 };
81
~SharedWorkerConnector()82 SharedWorkerConnector::~SharedWorkerConnector()
83 {
84 m_worker->setIsBeingConnected(false);
85 }
86
connect()87 void SharedWorkerConnector::connect()
88 {
89 m_worker->setIsBeingConnected(true);
90 m_webWorkerConnector->connect(m_channel.leakPtr(), this);
91 }
92
connected()93 void SharedWorkerConnector::connected()
94 {
95 // Free ourselves (this releases the SharedWorker so it can be freed as well if unreferenced).
96 delete this;
97 }
98
scriptLoadFailed()99 void SharedWorkerConnector::scriptLoadFailed()
100 {
101 m_worker->dispatchEvent(Event::createCancelable(EventTypeNames::error));
102 // Free ourselves (this releases the SharedWorker so it can be freed as well if unreferenced).
103 delete this;
104 }
105
getId(void * document)106 static WebSharedWorkerRepositoryClient::DocumentID getId(void* document)
107 {
108 ASSERT(document);
109 return reinterpret_cast<WebSharedWorkerRepositoryClient::DocumentID>(document);
110 }
111
connect(PassRefPtrWillBeRawPtr<SharedWorker> worker,PassOwnPtr<WebMessagePortChannel> port,const KURL & url,const String & name,ExceptionState & exceptionState)112 void SharedWorkerRepositoryClientImpl::connect(PassRefPtrWillBeRawPtr<SharedWorker> worker, PassOwnPtr<WebMessagePortChannel> port, const KURL& url, const String& name, ExceptionState& exceptionState)
113 {
114 ASSERT(m_client);
115
116 // No nested workers (for now) - connect() should only be called from document context.
117 ASSERT(worker->executionContext()->isDocument());
118 Document* document = toDocument(worker->executionContext());
119 OwnPtr<WebSharedWorkerConnector> webWorkerConnector = adoptPtr(m_client->createSharedWorkerConnector(url, name, getId(document), worker->executionContext()->contentSecurityPolicy()->deprecatedHeader(), static_cast<WebContentSecurityPolicyType>(worker->executionContext()->contentSecurityPolicy()->deprecatedHeaderType())));
120 if (!webWorkerConnector) {
121 // Existing worker does not match this url, so return an error back to the caller.
122 exceptionState.throwDOMException(URLMismatchError, "The location of the SharedWorker named '" + name + "' does not exactly match the provided URL ('" + url.elidedString() + "').");
123 return;
124 }
125
126 // The connector object manages its own lifecycle (and the lifecycles of the two worker objects).
127 // It will free itself once connecting is completed.
128 SharedWorkerConnector* connector = new SharedWorkerConnector(worker, url, name, port, webWorkerConnector.release());
129 connector->connect();
130 }
131
documentDetached(Document * document)132 void SharedWorkerRepositoryClientImpl::documentDetached(Document* document)
133 {
134 ASSERT(m_client);
135 m_client->documentDetached(getId(document));
136 }
137
SharedWorkerRepositoryClientImpl(WebSharedWorkerRepositoryClient * client)138 SharedWorkerRepositoryClientImpl::SharedWorkerRepositoryClientImpl(WebSharedWorkerRepositoryClient* client)
139 : m_client(client)
140 {
141 }
142
143 } // namespace blink
144