third_party/WebKit/Source/web/SharedWorkerRepositoryClientImpl.cpp

   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 "platform/network/ResourceResponse.h"
  43 #include "public/platform/WebMessagePortChannel.h"
  44 #include "public/platform/WebString.h"
  45 #include "public/platform/WebURL.h"
  46 #include "public/web/WebContentSecurityPolicy.h"
  47 #include "public/web/WebFrameClient.h"
  48 #include "public/web/WebKit.h"
  49 #include "public/web/WebSharedWorker.h"
  50 #include "public/web/WebSharedWorkerRepositoryClient.h"
  51 #include "web/WebLocalFrameImpl.h"
  52
  53 namespace blink {
  54
  55 // Callback class that keeps the SharedWorker and WebSharedWorker objects alive while connecting.
  56 class SharedWorkerConnector : private WebSharedWorkerConnector::ConnectListener {
  57 public:
  58     SharedWorkerConnector(SharedWorker* worker, const KURL& url, const String& name, PassOwnPtr<WebMessagePortChannel> channel, PassOwnPtr<WebSharedWorkerConnector> webWorkerConnector)
  59         : m_worker(worker)
  60         , m_url(url)
  61         , m_name(name)
  62         , m_webWorkerConnector(webWorkerConnector)
  63         , m_channel(channel) { }
  64
  65     virtual ~SharedWorkerConnector();
  66     void connect();
  67
  68 private:
  69     // WebSharedWorkerConnector::ConnectListener overrides.
  70     void connected() override;
  71     void scriptLoadFailed() override;
  72
  73     Persistent<SharedWorker> m_worker;
  74     KURL m_url;
  75     String m_name;
  76     OwnPtr<WebSharedWorkerConnector> m_webWorkerConnector;
  77     OwnPtr<WebMessagePortChannel> m_channel;
  78 };
  79
  80 SharedWorkerConnector::~SharedWorkerConnector()
  81 {
  82     m_worker->setIsBeingConnected(false);
  83 }
  84
  85 void SharedWorkerConnector::connect()
  86 {
  87     m_worker->setIsBeingConnected(true);
  88     m_webWorkerConnector->connect(m_channel.leakPtr(), this);
  89 }
  90
  91 void SharedWorkerConnector::connected()
  92 {
  93     // Free ourselves (this releases the SharedWorker so it can be freed as well if unreferenced).
  94     delete this;
  95 }
  96
  97 void SharedWorkerConnector::scriptLoadFailed()
  98 {
  99     m_worker->dispatchEvent(Event::createCancelable(EventTypeNames::error));
 100     // Free ourselves (this releases the SharedWorker so it can be freed as well if unreferenced).
 101     delete this;
 102 }
 103
 104 static WebSharedWorkerRepositoryClient::DocumentID getId(void* document)
 105 {
 106     ASSERT(document);
 107     return reinterpret_cast<WebSharedWorkerRepositoryClient::DocumentID>(document);
 108 }
 109
 110 void SharedWorkerRepositoryClientImpl::connect(SharedWorker* worker, PassOwnPtr<WebMessagePortChannel> port, const KURL& url, const String& name, ExceptionState& exceptionState)
 111 {
 112     ASSERT(m_client);
 113
 114     // No nested workers (for now) - connect() should only be called from document context.
 115     ASSERT(worker->executionContext()->isDocument());
 116     Document* document = toDocument(worker->executionContext());
 117
 118     // TODO(estark): this is broken, as it only uses the first header
 119     // when multiple might have been sent. Fix by making the
 120     // SharedWorkerConnector interface take a map that can contain
 121     // multiple headers.
 122     OwnPtr<Vector<CSPHeaderAndType>> headers = worker->executionContext()->contentSecurityPolicy()->headers();
 123     WebString header;
 124     WebContentSecurityPolicyType headerType = WebContentSecurityPolicyTypeReport;
 125
 126     if (headers->size() > 0) {
 127         header = (*headers)[0].first;
 128         headerType = static_cast<WebContentSecurityPolicyType>((*headers)[0].second);
 129     }
 130
 131     OwnPtr<WebSharedWorkerConnector> webWorkerConnector = adoptPtr(m_client->createSharedWorkerConnector(url, name, getId(document), header, headerType));
 132     if (!webWorkerConnector) {
 133         // Existing worker does not match this url, so return an error back to the caller.
 134         exceptionState.throwDOMException(URLMismatchError, "The location of the SharedWorker named '" + name + "' does not exactly match the provided URL ('" + url.elidedString() + "').");
 135         return;
 136     }
 137
 138     // The connector object manages its own lifecycle (and the lifecycles of the two worker objects).
 139     // It will free itself once connecting is completed.
 140     SharedWorkerConnector* connector = new SharedWorkerConnector(worker, url, name, port, webWorkerConnector.release());
 141     connector->connect();
 142 }
 143
 144 void SharedWorkerRepositoryClientImpl::documentDetached(Document* document)
 145 {
 146     ASSERT(m_client);
 147     m_client->documentDetached(getId(document));
 148 }
 149
 150 SharedWorkerRepositoryClientImpl::SharedWorkerRepositoryClientImpl(WebSharedWorkerRepositoryClient* client)
 151     : m_client(client)
 152 {
 153 }
 154
 155 } // namespace blink