C++ RenderEmbeddedObject::setPluginUnavailabilityReason方法代码示例

PassRefPtr<Widget> SubframeLoader::createJavaAppletWidget(const IntSize& size, HTMLAppletElement* element, const Vector<String>& paramNames, const Vector<String>& paramValues)
{
    String baseURLString;
    String codeBaseURLString;

    for (size_t i = 0; i < paramNames.size(); ++i) {
        if (equalIgnoringCase(paramNames[i], "baseurl"))
            baseURLString = paramValues[i];
        else if (equalIgnoringCase(paramNames[i], "codebase"))
            codeBaseURLString = paramValues[i];
    }

    if (!codeBaseURLString.isEmpty()) {
        KURL codeBaseURL = completeURL(codeBaseURLString);
        if (!element->document()->securityOrigin()->canDisplay(codeBaseURL)) {
            FrameLoader::reportLocalLoadFailed(m_frame, codeBaseURL.string());
            return 0;
        }

        const char javaAppletMimeType[] = "application/x-java-applet";
        if (!element->document()->contentSecurityPolicy()->allowObjectFromSource(codeBaseURL)
            || !element->document()->contentSecurityPolicy()->allowPluginType(javaAppletMimeType, javaAppletMimeType, codeBaseURL))
            return 0;
    }

    if (baseURLString.isEmpty())
        baseURLString = m_frame->document()->baseURL().string();
    KURL baseURL = completeURL(baseURLString);

    RefPtr<Widget> widget;
    if (allowPlugins(AboutToInstantiatePlugin))
        widget = m_frame->loader()->client()->createJavaAppletWidget(size, element, baseURL, paramNames, paramValues);

    logPluginRequest(document()->page(), element->serviceType(), String(), widget);

    if (!widget) {
        RenderEmbeddedObject* renderer = element->renderEmbeddedObject();

        if (!renderer->isPluginUnavailable())
            renderer->setPluginUnavailabilityReason(RenderEmbeddedObject::PluginMissing);
        return 0;
    }

    m_containsPlugins = true;
    return widget;
}

bool HTMLPlugInElement::loadPlugin(const KURL& url, const String& mimeType, const Vector<String>& paramNames, const Vector<String>& paramValues, bool useFallback, bool requireRenderer)
{
    LocalFrame* frame = document().frame();

    if (!frame->loader().allowPlugins(AboutToInstantiatePlugin))
        return false;

    RenderEmbeddedObject* renderer = renderEmbeddedObject();
    // FIXME: This code should not depend on renderer!
    if ((!renderer && requireRenderer) || useFallback)
        return false;

    WTF_LOG(Plugins, "%p Plug-in URL: %s", this, m_url.utf8().data());
    WTF_LOG(Plugins, "   Loaded URL: %s", url.string().utf8().data());
    m_loadedUrl = url;

    RefPtr<Widget> widget = m_persistedPluginWidget;
    if (!widget) {
        bool loadManually = document().isPluginDocument() && !document().containsPlugins() && toPluginDocument(document()).shouldLoadPluginManually();
        FrameLoaderClient::DetachedPluginPolicy policy = requireRenderer ? FrameLoaderClient::FailOnDetachedPlugin : FrameLoaderClient::AllowDetachedPlugin;
        widget = frame->loader().client()->createPlugin(this, url, paramNames, paramValues, mimeType, loadManually, policy);
    }

    if (!widget) {
        if (renderer && !renderer->showsUnavailablePluginIndicator())
            renderer->setPluginUnavailabilityReason(RenderEmbeddedObject::PluginMissing);
        return false;
    }

    if (renderer) {
        setWidget(widget);
        m_persistedPluginWidget = nullptr;
    } else if (widget != m_persistedPluginWidget) {
        m_persistedPluginWidget = widget;
    }
    document().setContainsPlugins();
    scheduleSVGFilterLayerUpdateHack();
    return true;
}

bool SubframeLoader::pluginIsLoadable(HTMLPlugInImageElement* pluginElement, const KURL& url, const String& mimeType)
{
    Settings* settings = m_frame->settings();
    if (!settings)
        return false;

    if (MIMETypeRegistry::isJavaAppletMIMEType(mimeType)) {
        if (!settings->isJavaEnabled())
            return false;
        if (document() && document()->securityOrigin()->isLocal() && !settings->isJavaEnabledForLocalFiles())
            return false;
    }

    if (document()) {
        if (document()->isSandboxed(SandboxPlugins))
            return false;

        if (!document()->securityOrigin()->canDisplay(url)) {
            FrameLoader::reportLocalLoadFailed(m_frame, url.string());
            return false;
        }

        String declaredMimeType = document()->isPluginDocument() && document()->ownerElement() ?
            document()->ownerElement()->fastGetAttribute(HTMLNames::typeAttr) :
            pluginElement->fastGetAttribute(HTMLNames::typeAttr);
        if (!document()->contentSecurityPolicy()->allowObjectFromSource(url)
            || !document()->contentSecurityPolicy()->allowPluginType(mimeType, declaredMimeType, url)) {
            RenderEmbeddedObject* renderer = pluginElement->renderEmbeddedObject();
            renderer->setPluginUnavailabilityReason(RenderEmbeddedObject::PluginBlockedByContentSecurityPolicy);
            return false;
        }

        if (m_frame->loader() && !m_frame->loader()->mixedContentChecker()->canRunInsecureContent(document()->securityOrigin(), url))
            return false;
    }

    return true;
}

bool SubframeLoader::loadPlugin(HTMLPlugInImageElement& pluginElement, const URL& url, const String& mimeType, const Vector<String>& paramNames, const Vector<String>& paramValues, bool useFallback)
{
    if (useFallback)
        return false;

    RenderEmbeddedObject* renderer = pluginElement.renderEmbeddedObject();
    // FIXME: This code should not depend on renderer!
    if (!renderer)
        return false;

    pluginElement.subframeLoaderWillCreatePlugIn(url);

    IntSize contentSize = roundedIntSize(LayoutSize(renderer->contentWidth(), renderer->contentHeight()));
    bool loadManually = is<PluginDocument>(*document()) && !m_containsPlugins && downcast<PluginDocument>(*document()).shouldLoadPluginManually();

#if PLATFORM(IOS)
    // On iOS, we only tell the plugin to be in full page mode if the containing plugin document is the top level document.
    if (document()->ownerElement())
        loadManually = false;
#endif

    WeakPtr<RenderWidget> weakRenderer = renderer->createWeakPtr();
    // createPlugin *may* cause this renderer to disappear from underneath.
    RefPtr<Widget> widget = m_frame.loader().client().createPlugin(contentSize, &pluginElement, url, paramNames, paramValues, mimeType, loadManually);
    if (!weakRenderer)
        return false;

    if (!widget) {
        if (!renderer->isPluginUnavailable())
            renderer->setPluginUnavailabilityReason(RenderEmbeddedObject::PluginMissing);
        return false;
    }

    pluginElement.subframeLoaderDidCreatePlugIn(*widget);
    renderer->setWidget(WTFMove(widget));
    m_containsPlugins = true;
    return true;
}

bool SubframeLoader::loadPlugin(HTMLPlugInImageElement& pluginElement, const URL& url, const String& mimeType, const Vector<String>& paramNames, const Vector<String>& paramValues, bool useFallback)
{
    RenderEmbeddedObject* renderer = pluginElement.renderEmbeddedObject();

    // FIXME: This code should not depend on renderer!
    if (!renderer || useFallback)
        return false;

    pluginElement.subframeLoaderWillCreatePlugIn(url);

    IntSize contentSize = roundedIntSize(LayoutSize(renderer->contentWidth(), renderer->contentHeight()));
    bool loadManually = document()->isPluginDocument() && !m_containsPlugins && toPluginDocument(document())->shouldLoadPluginManually();

#if PLATFORM(IOS)
    // On iOS, we only tell the plugin to be in full page mode if the containing plugin document is the top level document.
    if (document()->ownerElement())
        loadManually = false;
#endif

    RefPtr<Widget> widget = m_frame.loader().client().createPlugin(contentSize, &pluginElement, url, paramNames, paramValues, mimeType, loadManually);

    if (!widget) {
        if (!renderer->isPluginUnavailable())
            renderer->setPluginUnavailabilityReason(RenderEmbeddedObject::PluginMissing);
        return false;
    }

    pluginElement.subframeLoaderDidCreatePlugIn(widget.get());
    renderer->setWidget(widget);
    m_containsPlugins = true;
 
#if ENABLE(PLUGIN_PROXY_FOR_VIDEO)
    pluginElement.setNeedsStyleRecalc(SyntheticStyleChange);
#endif
    return true;
}

void HTMLAppletElement::updateWidgetInternal()
{
    setNeedsWidgetUpdate(false);
    // FIXME: This should ASSERT isFinishedParsingChildren() instead.
    if (!isFinishedParsingChildren())
        return;

    RenderEmbeddedObject* renderer = renderEmbeddedObject();

    LocalFrame* frame = document().frame();
    ASSERT(frame);

    Vector<String> paramNames;
    Vector<String> paramValues;

    const AtomicString& codeBase = getAttribute(codebaseAttr);
    if (!codeBase.isNull()) {
        KURL codeBaseURL = document().completeURL(codeBase);
        paramNames.append("codeBase");
        paramValues.append(codeBase.string());
    }

    const AtomicString& archive = getAttribute(archiveAttr);
    if (!archive.isNull()) {
        paramNames.append("archive");
        paramValues.append(archive.string());
    }

    const AtomicString& code = getAttribute(codeAttr);
    paramNames.append("code");
    paramValues.append(code.string());

    // If the 'codebase' attribute is set, it serves as a relative root for the file that the Java
    // plugin will load. If the 'code' attribute is set, and the 'archive' is not set, then we need
    // to check the url generated by resolving 'code' against 'codebase'. If the 'archive'
    // attribute is set, then 'code' points to a class inside the archive, so we need to check the
    // url generated by resolving 'archive' against 'codebase'.
    KURL urlToCheck;
    KURL rootURL = codeBase.isNull() ? document().url() : document().completeURL(codeBase);
    if (!archive.isNull())
        urlToCheck = KURL(rootURL, archive);
    else if (!code.isNull())
        urlToCheck = KURL(rootURL, code);
    if (!canEmbedURL(urlToCheck))
        return;

    const AtomicString& name = document().isHTMLDocument() ? getNameAttribute() : getIdAttribute();
    if (!name.isNull()) {
        paramNames.append("name");
        paramValues.append(name.string());
    }

    paramNames.append("baseURL");
    KURL baseURL = document().baseURL();
    paramValues.append(baseURL.string());

    const AtomicString& mayScript = getAttribute(mayscriptAttr);
    if (!mayScript.isNull()) {
        paramNames.append("mayScript");
        paramValues.append(mayScript.string());
    }

    for (HTMLParamElement* param = Traversal<HTMLParamElement>::firstChild(*this); param; param = Traversal<HTMLParamElement>::nextSibling(*param)) {
        if (param->name().isEmpty())
            continue;

        paramNames.append(param->name());
        paramValues.append(param->value());
    }

    OwnPtrWillBeRawPtr<PluginPlaceholder> placeholder = nullptr;
    RefPtrWillBeRawPtr<Widget> widget = nullptr;
    if (frame->loader().allowPlugins(AboutToInstantiatePlugin)) {
        placeholder = frame->loader().client()->createPluginPlaceholder(document(), KURL(), paramNames, paramValues, m_serviceType, false);
        if (!placeholder)
            widget = frame->loader().client()->createJavaAppletWidget(this, baseURL, paramNames, paramValues);
    }

    if (!placeholder && !widget) {
        if (!renderer->showsUnavailablePluginIndicator())
            renderer->setPluginUnavailabilityReason(RenderEmbeddedObject::PluginMissing);
        setPlaceholder(nullptr);
    } else if (placeholder) {
        setPlaceholder(placeholder.release());
    } else if (widget) {
        document().setContainsPlugins();
        setWidget(widget);
        setPlaceholder(nullptr);
    }
}

void HTMLAppletElement::updateWidget(PluginCreationOption)
{
    setNeedsWidgetUpdate(false);
    // FIXME: This should ASSERT isFinishedParsingChildren() instead.
    if (!isFinishedParsingChildren())
        return;

    RenderEmbeddedObject* renderer = renderEmbeddedObject();

    Frame* frame = document().frame();
    ASSERT(frame);

    LayoutUnit contentWidth = renderer->style()->width().isFixed() ? LayoutUnit(renderer->style()->width().value()) :
        renderer->width() - renderer->borderAndPaddingWidth();
    LayoutUnit contentHeight = renderer->style()->height().isFixed() ? LayoutUnit(renderer->style()->height().value()) :
        renderer->height() - renderer->borderAndPaddingHeight();

    Vector<String> paramNames;
    Vector<String> paramValues;

    paramNames.append("code");
    paramValues.append(getAttribute(codeAttr).string());

    const AtomicString& codeBase = getAttribute(codebaseAttr);
    if (!codeBase.isNull()) {
        KURL codeBaseURL = document().completeURL(codeBase);
        if (!document().securityOrigin()->canDisplay(codeBaseURL)) {
            FrameLoader::reportLocalLoadFailed(frame, codeBaseURL.string());
            return;
        }
        const char javaAppletMimeType[] = "application/x-java-applet";
        if (!document().contentSecurityPolicy()->allowObjectFromSource(codeBaseURL)
            || !document().contentSecurityPolicy()->allowPluginType(javaAppletMimeType, javaAppletMimeType, codeBaseURL))
            return;
        paramNames.append("codeBase");
        paramValues.append(codeBase.string());
    }

    const AtomicString& name = document().isHTMLDocument() ? getNameAttribute() : getIdAttribute();
    if (!name.isNull()) {
        paramNames.append("name");
        paramValues.append(name.string());
    }

    const AtomicString& archive = getAttribute(archiveAttr);
    if (!archive.isNull()) {
        paramNames.append("archive");
        paramValues.append(archive.string());
    }

    paramNames.append("baseURL");
    KURL baseURL = document().baseURL();
    paramValues.append(baseURL.string());

    const AtomicString& mayScript = getAttribute(mayscriptAttr);
    if (!mayScript.isNull()) {
        paramNames.append("mayScript");
        paramValues.append(mayScript.string());
    }

    for (Node* child = firstChild(); child; child = child->nextSibling()) {
        if (!child->hasTagName(paramTag))
            continue;

        HTMLParamElement* param = toHTMLParamElement(child);
        if (param->name().isEmpty())
            continue;

        paramNames.append(param->name());
        paramValues.append(param->value());
    }

    RefPtr<Widget> widget;
    if (frame->loader()->allowPlugins(AboutToInstantiatePlugin))
        widget = frame->loader()->client()->createJavaAppletWidget(roundedIntSize(LayoutSize(contentWidth, contentHeight)), this, baseURL, paramNames, paramValues);

    if (!widget) {
        if (!renderer->showsUnavailablePluginIndicator())
            renderer->setPluginUnavailabilityReason(RenderEmbeddedObject::PluginMissing);
        return;
    }
    frame->loader()->setContainsPlugins();
    renderer->setWidget(widget);
}

void HTMLAppletElement::updateWidgetInternal()
{
    ASSERT(!m_isDelayingLoadEvent);
    setNeedsWidgetUpdate(false);
    // FIXME: This should ASSERT isFinishedParsingChildren() instead.
    if (!isFinishedParsingChildren())
        return;

    RenderEmbeddedObject* renderer = renderEmbeddedObject();

    Frame* frame = document().frame();
    ASSERT(frame);

    LayoutUnit contentWidth = renderer->style()->width().isFixed() ? LayoutUnit(renderer->style()->width().value()) :
        renderer->width() - renderer->borderAndPaddingWidth();
    LayoutUnit contentHeight = renderer->style()->height().isFixed() ? LayoutUnit(renderer->style()->height().value()) :
        renderer->height() - renderer->borderAndPaddingHeight();

    Vector<String> paramNames;
    Vector<String> paramValues;

    const AtomicString& codeBase = getAttribute(codebaseAttr);
    if (!codeBase.isNull()) {
        KURL codeBaseURL = document().completeURL(codeBase);
        paramNames.append("codeBase");
        paramValues.append(codeBase.string());
    }

    const AtomicString& archive = getAttribute(archiveAttr);
    if (!archive.isNull()) {
        paramNames.append("archive");
        paramValues.append(archive.string());
    }

    const AtomicString& code = getAttribute(codeAttr);
    paramNames.append("code");
    paramValues.append(code.string());

    // If the 'codebase' attribute is set, it serves as a relative root for the file that the Java
    // plugin will load. If the 'code' attribute is set, and the 'archive' is not set, then we need
    // to check the url generated by resolving 'code' against 'codebase'. If the 'archive'
    // attribute is set, then 'code' points to a class inside the archive, so we need to check the
    // url generated by resolving 'archive' against 'codebase'.
    KURL urlToCheck;
    KURL rootURL = codeBase.isNull() ? document().url() : document().completeURL(codeBase);
    if (!archive.isNull())
        urlToCheck = KURL(rootURL, archive);
    else if (!code.isNull())
        urlToCheck = KURL(rootURL, code);
    if (!canEmbedURL(urlToCheck))
        return;

    const AtomicString& name = document().isHTMLDocument() ? getNameAttribute() : getIdAttribute();
    if (!name.isNull()) {
        paramNames.append("name");
        paramValues.append(name.string());
    }

    paramNames.append("baseURL");
    KURL baseURL = document().baseURL();
    paramValues.append(baseURL.string());

    const AtomicString& mayScript = getAttribute(mayscriptAttr);
    if (!mayScript.isNull()) {
        paramNames.append("mayScript");
        paramValues.append(mayScript.string());
    }

    for (Node* child = firstChild(); child; child = child->nextSibling()) {
        if (!child->hasTagName(paramTag))
            continue;

        HTMLParamElement* param = toHTMLParamElement(child);
        if (param->name().isEmpty())
            continue;

        paramNames.append(param->name());
        paramValues.append(param->value());
    }

    RefPtr<Widget> widget;
    if (frame->loader().allowPlugins(AboutToInstantiatePlugin))
        widget = frame->loader().client()->createJavaAppletWidget(roundedIntSize(LayoutSize(contentWidth, contentHeight)), this, baseURL, paramNames, paramValues);

    if (!widget) {
        if (!renderer->showsUnavailablePluginIndicator())
            renderer->setPluginUnavailabilityReason(RenderEmbeddedObject::PluginMissing);
        return;
    }
    document().setContainsPlugins();
    renderer->setWidget(widget);
}