コード例 #1
0
ファイル: UseCounter.cpp プロジェクト: junmin-zhu/blink
void UseCounter::countDeprecation(ExecutionContext* context, Feature feature)
{
    if (!context || !context->isDocument())
        return;
    UseCounter::countDeprecation(*toDocument(context), feature);
}
コード例 #2
0
void V8LazyEventListener::prepareListenerObject(ScriptExecutionContext* context)
{
    if (context->isDocument() && !toDocument(context)->contentSecurityPolicy()->allowInlineEventHandlers(m_sourceURL, m_position.m_line)) {
        clearListenerObject();
        return;
    }

    if (hasExistingListenerObject())
        return;

    ASSERT(context->isDocument());
    Frame* frame = toDocument(context)->frame();
    if (!frame)
        return;

    if (!frame->script()->canExecuteScripts(NotAboutToExecuteScript))
        return;

    v8::HandleScope handleScope;

    // Use the outer scope to hold context.
    v8::Local<v8::Context> v8Context = toV8Context(context, world());
    v8::Isolate* isolate = v8Context->GetIsolate();
    // Bail out if we cannot get the context.
    if (v8Context.IsEmpty())
        return;

    v8::Context::Scope scope(v8Context);

    // FIXME: Remove the following 'with' hack.
    //
    // Nodes other than the document object, when executing inline event
    // handlers push document, form, and the target node on the scope chain.
    // We do this by using 'with' statement.
    // See chrome/fast/forms/form-action.html
    //     chrome/fast/forms/selected-index-value.html
    //     base/fast/overflow/onscroll-layer-self-destruct.html
    //
    // Don't use new lines so that lines in the modified handler
    // have the same numbers as in the original code.
    // FIXME: V8 does not allow us to programmatically create object environments so
    //        we have to do this hack! What if m_code escapes to run arbitrary script?
    //
    // Call with 4 arguments instead of 3, pass additional null as the last parameter.
    // By calling the function with 4 arguments, we create a setter on arguments object
    // which would shadow property "3" on the prototype.
    String code = "(function() {"
        "with (this[2]) {"
        "with (this[1]) {"
        "with (this[0]) {"
            "return function(" + m_eventParameterName + ") {" +
                m_code + "\n" // Insert '\n' otherwise //-style comments could break the handler.
            "};"
        "}}}})";

    v8::Handle<v8::String> codeExternalString = v8String(code, isolate);

    v8::Local<v8::Value> result = V8ScriptRunner::compileAndRunInternalScript(codeExternalString, isolate, m_sourceURL, m_position, 0);
    if (result.IsEmpty())
        return;

    // Call the outer function to get the inner function.
    ASSERT(result->IsFunction());
    v8::Local<v8::Function> intermediateFunction = result.As<v8::Function>();

    HTMLFormElement* formElement = 0;
    if (m_node && m_node->isHTMLElement())
        formElement = toHTMLElement(m_node)->form();

    v8::Handle<v8::Object> nodeWrapper = toObjectWrapper<Node>(m_node, isolate);
    v8::Handle<v8::Object> formWrapper = toObjectWrapper<HTMLFormElement>(formElement, isolate);
    v8::Handle<v8::Object> documentWrapper = toObjectWrapper<Document>(m_node ? m_node->ownerDocument() : 0, isolate);

    v8::Local<v8::Object> thisObject = v8::Object::New();
    if (thisObject.IsEmpty())
        return;
    if (!thisObject->ForceSet(v8Integer(0, isolate), nodeWrapper))
        return;
    if (!thisObject->ForceSet(v8Integer(1, isolate), formWrapper))
        return;
    if (!thisObject->ForceSet(v8Integer(2, isolate), documentWrapper))
        return;

    // FIXME: Remove this code when we stop doing the 'with' hack above.
    v8::Local<v8::Value> innerValue = V8ScriptRunner::callInternalFunction(intermediateFunction, thisObject, 0, 0, isolate);
    if (innerValue.IsEmpty() || !innerValue->IsFunction())
        return;

    v8::Local<v8::Function> wrappedFunction = innerValue.As<v8::Function>();

    // Change the toString function on the wrapper function to avoid it
    // returning the source for the actual wrapper function. Instead it
    // returns source for a clean wrapper function with the event
    // argument wrapping the event source code. The reason for this is
    // that some web sites use toString on event functions and eval the
    // source returned (sometimes a RegExp is applied as well) for some
    // other use. That fails miserably if the actual wrapper source is
    // returned.
    v8::Handle<v8::FunctionTemplate> toStringTemplate =
        V8PerIsolateData::current()->lazyEventListenerToStringTemplate();
    if (toStringTemplate.IsEmpty())
        toStringTemplate = v8::FunctionTemplate::New(V8LazyEventListenerToString);
    v8::Local<v8::Function> toStringFunction;
    if (!toStringTemplate.IsEmpty())
        toStringFunction = toStringTemplate->GetFunction();
    if (!toStringFunction.IsEmpty()) {
        String toStringString = "function " + m_functionName + "(" + m_eventParameterName + ") {\n  " + m_code + "\n}";
        wrappedFunction->SetHiddenValue(V8HiddenPropertyName::toStringString(), v8String(toStringString, isolate));
        wrappedFunction->Set(v8::String::NewSymbol("toString"), toStringFunction);
    }

    wrappedFunction->SetName(v8String(m_functionName, isolate));

    // FIXME: Remove the following comment-outs.
    // See https://bugs.webkit.org/show_bug.cgi?id=85152 for more details.
    //
    // For the time being, we comment out the following code since the
    // second parsing can happen.
    // // Since we only parse once, there's no need to keep data used for parsing around anymore.
    // m_functionName = String();
    // m_code = String();
    // m_eventParameterName = String();
    // m_sourceURL = String();

    setListenerObject(wrappedFunction);
}
コード例 #3
0
Document* NamedFlowCollection::document() const
{
    ScriptExecutionContext* context = ContextDestructionObserver::scriptExecutionContext();
    return toDocument(context);
}
コード例 #4
0
ファイル: XMLHttpRequest.cpp プロジェクト: Igalia/blink
Document* XMLHttpRequest::document() const
{
    ASSERT(executionContext()->isDocument());
    return toDocument(executionContext());
}
コード例 #5
0
ファイル: Geolocation.cpp プロジェクト: mtucker6784/chromium
Document* Geolocation::document() const
{
    return toDocument(executionContext());
}
コード例 #6
0
void WorkerObjectProxy::postWorkerConsoleAgentEnabled()
{
    ExecutionContext* context = getExecutionContext();
    if (context->isDocument())
        toDocument(context)->postInspectorTask(BLINK_FROM_HERE, createCrossThreadTask(&WorkerMessagingProxy::postWorkerConsoleAgentEnabled, m_messagingProxy));
}
コード例 #7
0
void WorkerObjectProxy::postMessageToPageInspector(const String& message)
{
    ExecutionContext* context = getExecutionContext();
    if (context->isDocument())
        toDocument(context)->postInspectorTask(BLINK_FROM_HERE, createCrossThreadTask(&WorkerMessagingProxy::postMessageToPageInspector, m_messagingProxy, message));
}
コード例 #8
0
void Notification::requestPermission(ScriptExecutionContext* context, PassRefPtr<NotificationPermissionCallback> callback)
{
    ASSERT(toDocument(context)->page());
    NotificationController::from(toDocument(context)->page())->client()->requestPermission(context, callback);
}
コード例 #9
0
const String Notification::permission(ScriptExecutionContext* context)
{
    ASSERT(toDocument(context)->page());
    return permissionString(NotificationController::from(toDocument(context)->page())->client()->checkPermission(context));
}
コード例 #10
0
void WebAssociatedURLLoaderImpl::loadAsynchronously(
    const WebURLRequest& request,
    WebAssociatedURLLoaderClient* client) {
  DCHECK(!m_client);
  DCHECK(!m_loader);
  DCHECK(!m_clientAdapter);

  DCHECK(client);

  bool allowLoad = true;
  WebURLRequest newRequest(request);
  if (m_options.untrustedHTTP) {
    WebString method = newRequest.httpMethod();
    allowLoad = m_observer && isValidHTTPToken(method) &&
                FetchUtils::isUsefulMethod(method);
    if (allowLoad) {
      newRequest.setHTTPMethod(FetchUtils::normalizeMethod(method));
      HTTPRequestHeaderValidator validator;
      newRequest.visitHTTPHeaderFields(&validator);
      allowLoad = validator.isSafe();
    }
  }

  m_client = client;
  m_clientAdapter = ClientAdapter::create(this, client, m_options);

  if (allowLoad) {
    ThreadableLoaderOptions options;
    options.preflightPolicy =
        static_cast<PreflightPolicy>(m_options.preflightPolicy);
    options.crossOriginRequestPolicy = static_cast<CrossOriginRequestPolicy>(
        m_options.crossOriginRequestPolicy);

    ResourceLoaderOptions resourceLoaderOptions;
    resourceLoaderOptions.allowCredentials = m_options.allowCredentials
                                                 ? AllowStoredCredentials
                                                 : DoNotAllowStoredCredentials;
    resourceLoaderOptions.dataBufferingPolicy = DoNotBufferData;

    const ResourceRequest& webcoreRequest = newRequest.toResourceRequest();
    if (webcoreRequest.requestContext() ==
        WebURLRequest::RequestContextUnspecified) {
      // FIXME: We load URLs without setting a TargetType (and therefore a
      // request context) in several places in content/
      // (P2PPortAllocatorSession::AllocateLegacyRelaySession, for example).
      // Remove this once those places are patched up.
      newRequest.setRequestContext(WebURLRequest::RequestContextInternal);
    }

    Document* document = toDocument(m_observer->lifecycleContext());
    DCHECK(document);
    m_loader = DocumentThreadableLoader::create(
        *document, m_clientAdapter.get(), options, resourceLoaderOptions);
    m_loader->start(webcoreRequest);
  }

  if (!m_loader) {
    // FIXME: return meaningful error codes.
    m_clientAdapter->didFail(ResourceError());
  }
  m_clientAdapter->enableErrorNotifications();
}