webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 58 insertions, 58 deletions

diff --git a/Source/WebCore/workers/Worker.cpp b/Source/WebCore/workers/Worker.cpp
index 168d13821..51348c278 100644
--- a/Source/WebCore/workers/Worker.cpp
+++ b/Source/WebCore/workers/Worker.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2008, 2010 Apple Inc. All Rights Reserved.
+ * Copyright (C) 2008-2017 Apple Inc. All Rights Reserved.
  * Copyright (C) 2009 Google Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -11,10 +11,10 @@
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
- * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE COMPUTER, INC. OR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. 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
@@ -22,30 +22,22 @@
  * 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. 
- *
  */
 
 #include "config.h"
-
 #include "Worker.h"
 
-#include "DOMWindow.h"
-#include "CachedResourceLoader.h"
-#include "Document.h"
-#include "EventException.h"
-#include "EventListener.h"
+#include "ContentSecurityPolicy.h"
+#include "Event.h"
 #include "EventNames.h"
-#include "ExceptionCode.h"
-#include "FeatureObserver.h"
-#include "Frame.h"
-#include "FrameLoader.h"
 #include "InspectorInstrumentation.h"
-#include "MessageEvent.h"
 #include "NetworkStateNotifier.h"
-#include "TextEncoding.h"
+#include "ResourceResponse.h"
+#include "SecurityOrigin.h"
 #include "WorkerGlobalScopeProxy.h"
 #include "WorkerScriptLoader.h"
 #include "WorkerThread.h"
+#include <inspector/IdentifiersFactory.h>
 #include <wtf/HashSet.h>
 #include <wtf/MainThread.h>
 
@@ -55,49 +47,53 @@ static HashSet<Worker*>* allWorkers;
 
 void networkStateChanged(bool isOnLine)
 {
-    HashSet<Worker*>::iterator end = allWorkers->end();
-    for (HashSet<Worker*>::iterator it = allWorkers->begin(); it != end; ++it)
-        (*it)->notifyNetworkStateChange(isOnLine);
+    for (auto& worker : *allWorkers)
+        worker->notifyNetworkStateChange(isOnLine);
 }
 
-inline Worker::Worker(ScriptExecutionContext& context)
-    : AbstractWorker(context)
-    , m_contextProxy(WorkerGlobalScopeProxy::create(this))
+inline Worker::Worker(ScriptExecutionContext& context, JSC::RuntimeFlags runtimeFlags)
+    : ActiveDOMObject(&context)
+    , m_identifier("worker:" + Inspector::IdentifiersFactory::createIdentifier())
+    , m_contextProxy(WorkerGlobalScopeProxy::create(*this))
+    , m_runtimeFlags(runtimeFlags)
 {
     if (!allWorkers) {
         allWorkers = new HashSet<Worker*>;
         networkStateNotifier().addNetworkStateChangeListener(networkStateChanged);
     }
 
-    HashSet<Worker*>::AddResult addResult = allWorkers->add(this);
+    auto addResult = allWorkers->add(this);
     ASSERT_UNUSED(addResult, addResult.isNewEntry);
 }
 
-PassRefPtr<Worker> Worker::create(ScriptExecutionContext& context, const String& url, ExceptionCode& ec)
+ExceptionOr<Ref<Worker>> Worker::create(ScriptExecutionContext& context, const String& url, JSC::RuntimeFlags runtimeFlags)
 {
     ASSERT(isMainThread());
 
     // We don't currently support nested workers, so workers can only be created from documents.
     ASSERT_WITH_SECURITY_IMPLICATION(context.isDocument());
-    Document& document = static_cast<Document&>(context);
-
-    FeatureObserver::observe(document.domWindow(), FeatureObserver::WorkerStart);
 
-    RefPtr<Worker> worker = adoptRef(new Worker(context));
+    auto worker = adoptRef(*new Worker(context, runtimeFlags));
 
     worker->suspendIfNeeded();
 
-    URL scriptURL = worker->resolveURL(url, ec);
-    if (scriptURL.isEmpty())
-        return 0;
+    bool shouldBypassMainWorldContentSecurityPolicy = context.shouldBypassMainWorldContentSecurityPolicy();
+    auto scriptURL = worker->resolveURL(url, shouldBypassMainWorldContentSecurityPolicy);
+    if (scriptURL.hasException())
+        return scriptURL.releaseException();
+
+    worker->m_shouldBypassMainWorldContentSecurityPolicy = shouldBypassMainWorldContentSecurityPolicy;
 
     // The worker context does not exist while loading, so we must ensure that the worker object is not collected, nor are its event listeners.
-    worker->setPendingActivity(worker.get());
+    worker->setPendingActivity(worker.ptr());
 
-    worker->m_scriptLoader = WorkerScriptLoader::create();
-    worker->m_scriptLoader->loadAsynchronously(&context, scriptURL, DenyCrossOriginRequests, worker.get());
+    // https://html.spec.whatwg.org/multipage/workers.html#official-moment-of-creation
+    worker->m_workerCreationTime = MonotonicTime::now();
 
-    return worker.release();
+    worker->m_scriptLoader = WorkerScriptLoader::create();
+    auto contentSecurityPolicyEnforcement = shouldBypassMainWorldContentSecurityPolicy ? ContentSecurityPolicyEnforcement::DoNotEnforce : ContentSecurityPolicyEnforcement::EnforceChildSrcDirective;
+    worker->m_scriptLoader->loadAsynchronously(&context, scriptURL.releaseReturnValue(), FetchOptions::Mode::SameOrigin, contentSecurityPolicyEnforcement, worker->m_identifier, worker.ptr());
+    return WTFMove(worker);
 }
 
 Worker::~Worker()
@@ -105,37 +101,40 @@ Worker::~Worker()
     ASSERT(isMainThread());
     ASSERT(scriptExecutionContext()); // The context is protected by worker context proxy, so it cannot be destroyed while a Worker exists.
     allWorkers->remove(this);
-    m_contextProxy->workerObjectDestroyed();
+    m_contextProxy.workerObjectDestroyed();
 }
 
-void Worker::postMessage(PassRefPtr<SerializedScriptValue> message, MessagePort* port, ExceptionCode& ec)
+ExceptionOr<void> Worker::postMessage(JSC::ExecState& state, JSC::JSValue messageValue, Vector<JSC::Strong<JSC::JSObject>>&& transfer)
 {
-    MessagePortArray ports;
-    if (port)
-        ports.append(port);
-    postMessage(message, &ports, ec);
-}
+    Vector<RefPtr<MessagePort>> ports;
+    auto message = SerializedScriptValue::create(state, messageValue, WTFMove(transfer), ports, SerializationContext::WorkerPostMessage);
+    if (message.hasException())
+        return message.releaseException();
 
-void Worker::postMessage(PassRefPtr<SerializedScriptValue> message, const MessagePortArray* ports, ExceptionCode& ec)
-{
     // Disentangle the port in preparation for sending it to the remote context.
-    OwnPtr<MessagePortChannelArray> channels = MessagePort::disentanglePorts(ports, ec);
-    if (ec)
-        return;
-    m_contextProxy->postMessageToWorkerGlobalScope(message, channels.release());
+    auto channels = MessagePort::disentanglePorts(WTFMove(ports));
+    if (channels.hasException())
+        return channels.releaseException();
+    m_contextProxy.postMessageToWorkerGlobalScope(message.releaseReturnValue(), channels.releaseReturnValue());
+    return { };
 }
 
 void Worker::terminate()
 {
-    m_contextProxy->terminateWorkerGlobalScope();
+    m_contextProxy.terminateWorkerGlobalScope();
 }
 
-bool Worker::canSuspend() const
+bool Worker::canSuspendForDocumentSuspension() const
 {
     // FIXME: It is not currently possible to suspend a worker, so pages with workers can not go into page cache.
     return false;
 }
 
+const char* Worker::activeDOMObjectName() const
+{
+    return "Worker";
+}
+
 void Worker::stop()
 {
     terminate();
@@ -143,16 +142,19 @@ void Worker::stop()
 
 bool Worker::hasPendingActivity() const
 {
-    return m_contextProxy->hasPendingActivity() || ActiveDOMObject::hasPendingActivity();
+    return m_contextProxy.hasPendingActivity() || ActiveDOMObject::hasPendingActivity();
 }
 
 void Worker::notifyNetworkStateChange(bool isOnLine)
 {
-    m_contextProxy->notifyNetworkStateChange(isOnLine);
+    m_contextProxy.notifyNetworkStateChange(isOnLine);
 }
 
-void Worker::didReceiveResponse(unsigned long identifier, const ResourceResponse&)
+void Worker::didReceiveResponse(unsigned long identifier, const ResourceResponse& response)
 {
+    const URL& responseURL = response.url();
+    if (!responseURL.protocolIsBlob() && !responseURL.protocolIs("file") && !SecurityOrigin::create(responseURL)->isUnique())
+        m_contentSecurityPolicyResponseHeaders = ContentSecurityPolicyResponseHeaders(response);
     InspectorInstrumentation::didReceiveScriptResponse(scriptExecutionContext(), identifier);
 }
 
@@ -161,11 +163,9 @@ void Worker::notifyFinished()
     if (m_scriptLoader->failed())
         dispatchEvent(Event::create(eventNames().errorEvent, false, true));
     else {
-        WorkerThreadStartMode startMode = DontPauseWorkerGlobalScopeOnStart;
-        if (InspectorInstrumentation::shouldPauseDedicatedWorkerOnStart(scriptExecutionContext()))
-            startMode = PauseWorkerGlobalScopeOnStart;
-        m_contextProxy->startWorkerGlobalScope(m_scriptLoader->url(), scriptExecutionContext()->userAgent(m_scriptLoader->url()), m_scriptLoader->script(), startMode);
-        InspectorInstrumentation::scriptImported(scriptExecutionContext(), m_scriptLoader->identifier(), m_scriptLoader->script());
+        const ContentSecurityPolicyResponseHeaders& contentSecurityPolicyResponseHeaders = m_contentSecurityPolicyResponseHeaders ? m_contentSecurityPolicyResponseHeaders.value() : scriptExecutionContext()->contentSecurityPolicy()->responseHeaders();
+        m_contextProxy.startWorkerGlobalScope(m_scriptLoader->url(), scriptExecutionContext()->userAgent(m_scriptLoader->url()), m_scriptLoader->script(), contentSecurityPolicyResponseHeaders, m_shouldBypassMainWorldContentSecurityPolicy, m_workerCreationTime, m_runtimeFlags);
+        InspectorInstrumentation::scriptImported(*scriptExecutionContext(), m_scriptLoader->identifier(), m_scriptLoader->script());
     }
     m_scriptLoader = nullptr;