void WebLoaderStrategy::loadResourceSynchronously(NetworkingContext* context, unsigned long resourceLoadIdentifier, const ResourceRequest& request, StoredCredentials storedCredentials, ClientCredentialPolicy clientCredentialPolicy, ResourceError& error, ResourceResponse& response, Vector<char>& data)
{
    WebFrameNetworkingContext* webContext = static_cast<WebFrameNetworkingContext*>(context);
    // FIXME: Some entities in WebCore use WebCore's "EmptyFrameLoaderClient" instead of having a proper WebFrameLoaderClient.
    // EmptyFrameLoaderClient shouldn't exist and everything should be using a WebFrameLoaderClient,
    // but in the meantime we have to make sure not to mis-cast.
    WebFrameLoaderClient* webFrameLoaderClient = webContext->webFrameLoaderClient();
    WebFrame* webFrame = webFrameLoaderClient ? webFrameLoaderClient->webFrame() : 0;
    WebPage* webPage = webFrame ? webFrame->page() : 0;

    NetworkResourceLoadParameters loadParameters;
    loadParameters.identifier = resourceLoadIdentifier;
    loadParameters.webPageID = webPage ? webPage->pageID() : 0;
    loadParameters.webFrameID = webFrame ? webFrame->frameID() : 0;
    loadParameters.sessionID = webPage ? webPage->sessionID() : SessionID::defaultSessionID();
    loadParameters.request = request;
    loadParameters.contentSniffingPolicy = SniffContent;
    loadParameters.allowStoredCredentials = storedCredentials;
    loadParameters.clientCredentialPolicy = clientCredentialPolicy;
    loadParameters.shouldClearReferrerOnHTTPSToHTTPRedirect = context->shouldClearReferrerOnHTTPSToHTTPRedirect();

    data.resize(0);

    HangDetectionDisabler hangDetectionDisabler;

    if (!WebProcess::singleton().networkConnection()->connection()->sendSync(Messages::NetworkConnectionToWebProcess::PerformSynchronousLoad(loadParameters), Messages::NetworkConnectionToWebProcess::PerformSynchronousLoad::Reply(error, response, data), 0)) {
        response = ResourceResponse();
        error = internalError(request.url());
    }
}

WebFrame* WebFrame::parentFrame() const
{
    if (!m_coreFrame || !m_coreFrame->ownerElement())
        return 0;

    WebFrameLoaderClient* webFrameLoaderClient = toWebFrameLoaderClient(m_coreFrame->ownerElement()->document().frame()->loader().client());
    return webFrameLoaderClient ? webFrameLoaderClient->webFrame() : 0;
}

WebFrame* InjectedBundleHitTestResult::targetFrame() const
{
    Frame* frame = m_hitTestResult.targetFrame();
    if (!frame)
        return 0;

    WebFrameLoaderClient* webFrameLoaderClient = toWebFrameLoaderClient(frame->loader().client());
    return webFrameLoaderClient ? webFrameLoaderClient->webFrame() : 0;
}

WebFrame* WebFrame::frameForContext(JSContextRef context)
{
    JSObjectRef globalObjectRef = JSContextGetGlobalObject(context);
    JSC::JSObject* globalObjectObj = toJS(globalObjectRef);
    if (strcmp(globalObjectObj->classInfo()->className, "JSDOMWindowShell") != 0)
        return 0;

    Frame* coreFrame = static_cast<JSDOMWindowShell*>(globalObjectObj)->window()->impl().frame();

    WebFrameLoaderClient* webFrameLoaderClient = toWebFrameLoaderClient(coreFrame->loader().client());
    return webFrameLoaderClient ? webFrameLoaderClient->webFrame() : 0;
}

PassRefPtr<WebFrame> InjectedBundleNodeHandle::htmlIFrameElementContentFrame()
{
    if (!m_node->hasTagName(iframeTag))
        return 0;

    Frame* frame = static_cast<HTMLIFrameElement*>(m_node.get())->contentFrame();
    if (!frame)
        return 0;

    WebFrameLoaderClient* webFrameLoaderClient = toWebFrameLoaderClient(frame->loader()->client());
    return webFrameLoaderClient ? webFrameLoaderClient->webFrame() : 0;
}

std::vector<WebFrame*>* WebFrame::children()
{
    m_rc.clear();
    if (Frame* frame = core(this)) {
        FrameTree *tree = frame->tree();
        for (Frame *child = tree->firstChild(); child; child = child->tree()->nextSibling()) {
            FrameLoader *loader = child->loader();
            WebFrameLoaderClient *client = static_cast<WebFrameLoaderClient*>(loader->client());
            if (client)
                m_rc.push_back(client->webFrame());
        }

    }
    return &m_rc;
}

void GeolocationPermissionRequestManager::startRequestForGeolocation(Geolocation* geolocation)
{
    uint64_t geolocationID = generateGeolocationID();

    m_geolocationToIDMap.set(geolocation, geolocationID);
    m_idToGeolocationMap.set(geolocationID, geolocation);


    Frame* frame = geolocation->frame();

    WebFrameLoaderClient* webFrameLoaderClient = toWebFrameLoaderClient(frame->loader()->client());
    WebFrame* webFrame = webFrameLoaderClient ? webFrameLoaderClient->webFrame() : 0;
    ASSERT(webFrame);

    SecurityOrigin* origin = frame->document()->securityOrigin();

    m_page->send(Messages::WebPageProxy::RequestGeolocationPermissionForFrame(geolocationID, webFrame->frameID(), origin->databaseIdentifier()));
}

void WebLoaderStrategy::createPingHandle(NetworkingContext* networkingContext, ResourceRequest& request, bool shouldUseCredentialStorage)
{
    // It's possible that call to createPingHandle might be made during initial empty Document creation before a NetworkingContext exists.
    // It is not clear that we should send ping loads during that process anyways.
    if (!networkingContext)
        return;

    WebFrameNetworkingContext* webContext = static_cast<WebFrameNetworkingContext*>(networkingContext);
    WebFrameLoaderClient* webFrameLoaderClient = webContext->webFrameLoaderClient();
    WebFrame* webFrame = webFrameLoaderClient ? webFrameLoaderClient->webFrame() : nullptr;
    WebPage* webPage = webFrame ? webFrame->page() : nullptr;
    
    NetworkResourceLoadParameters loadParameters;
    loadParameters.request = request;
    loadParameters.sessionID = webPage ? webPage->sessionID() : SessionID::defaultSessionID();
    loadParameters.allowStoredCredentials = shouldUseCredentialStorage ? AllowStoredCredentials : DoNotAllowStoredCredentials;
    loadParameters.shouldClearReferrerOnHTTPSToHTTPRedirect = networkingContext->shouldClearReferrerOnHTTPSToHTTPRedirect();

    WebProcess::singleton().networkConnection()->connection()->send(Messages::NetworkConnectionToWebProcess::LoadPing(loadParameters), 0);
}

String WebFrame::contentsAsString() const 
{
    if (!m_coreFrame)
        return String();

    if (isFrameSet()) {
        StringBuilder builder;
        for (Frame* child = m_coreFrame->tree().firstChild(); child; child = child->tree().nextSibling()) {
            if (!builder.isEmpty())
                builder.append(' ');

            WebFrameLoaderClient* webFrameLoaderClient = toWebFrameLoaderClient(child->loader().client());
            WebFrame* webFrame = webFrameLoaderClient ? webFrameLoaderClient->webFrame() : 0;
            ASSERT(webFrame);

            builder.append(webFrame->contentsAsString());
        }
        // FIXME: It may make sense to use toStringPreserveCapacity() here.
        return builder.toString();
    }

    Document* document = m_coreFrame->document();
    if (!document)
        return String();

    RefPtr<Element> documentElement = document->documentElement();
    if (!documentElement)
        return String();

    RefPtr<Range> range = document->createRange();

    ExceptionCode ec = 0;
    range->selectNode(documentElement.get(), ec);
    if (ec)
        return String();

    return plainText(range.get());
}

void WebLoaderStrategy::scheduleLoad(ResourceLoader* resourceLoader, CachedResource* resource, bool shouldClearReferrerOnHTTPSToHTTPRedirect)
{
    ASSERT(resourceLoader);

    ResourceLoadIdentifier identifier = resourceLoader->identifier();
    ASSERT(identifier);

#if ENABLE(WEB_ARCHIVE) || ENABLE(MHTML)
    // If the DocumentLoader schedules this as an archive resource load,
    // then we should remember the ResourceLoader in our records but not schedule it in the NetworkProcess.
    if (resourceLoader->documentLoader()->scheduleArchiveLoad(resourceLoader, resourceLoader->request())) {
        LOG(NetworkScheduling, "(WebProcess) WebLoaderStrategy::scheduleLoad, url '%s' will be handled as an archive resource.", resourceLoader->url().string().utf8().data());
        m_webResourceLoaders.set(identifier, WebResourceLoader::create(resourceLoader));
        return;
    }
#endif

    if (resourceLoader->documentLoader()->applicationCacheHost()->maybeLoadResource(resourceLoader, resourceLoader->request(), resourceLoader->request().url())) {
        LOG(NetworkScheduling, "(WebProcess) WebLoaderStrategy::scheduleLoad, url '%s' will be loaded from application cache.", resourceLoader->url().string().utf8().data());
        m_webResourceLoaders.set(identifier, WebResourceLoader::create(resourceLoader));
        return;
    }

    if (resourceLoader->request().url().protocolIsData()) {
        LOG(NetworkScheduling, "(WebProcess) WebLoaderStrategy::scheduleLoad, url '%s' will be loaded as data.", resourceLoader->url().string().utf8().data());
        startLocalLoad(*resourceLoader);
        return;
    }

#if USE(QUICK_LOOK)
    if (resourceLoader->request().url().protocolIs(QLPreviewProtocol())) {
        LOG(NetworkScheduling, "(WebProcess) WebLoaderStrategy::scheduleLoad, url '%s' will be handled as a QuickLook resource.", resourceLoader->url().string().utf8().data());
        startLocalLoad(*resourceLoader);
        return;
    }
#endif

#if USE(SOUP)
    // For apps that call g_resource_load in a web extension.
    // https://blogs.gnome.org/alexl/2012/01/26/resources-in-glib/
    if (resourceLoader->request().url().protocolIs("resource")) {
        LOG(NetworkScheduling, "(WebProcess) WebLoaderStrategy::scheduleLoad, url '%s' will be handled as a GResource.", resourceLoader->url().string().utf8().data());
        startLocalLoad(*resourceLoader);
        return;
    }
#endif

    LOG(NetworkScheduling, "(WebProcess) WebLoaderStrategy::scheduleLoad, url '%s' will be scheduled with the NetworkProcess with priority %d", resourceLoader->url().string().latin1().data(), static_cast<int>(resourceLoader->request().priority()));

    ContentSniffingPolicy contentSniffingPolicy = resourceLoader->shouldSniffContent() ? SniffContent : DoNotSniffContent;
    StoredCredentials allowStoredCredentials = resourceLoader->shouldUseCredentialStorage() ? AllowStoredCredentials : DoNotAllowStoredCredentials;

    // FIXME: Some entities in WebCore use WebCore's "EmptyFrameLoaderClient" instead of having a proper WebFrameLoaderClient.
    // EmptyFrameLoaderClient shouldn't exist and everything should be using a WebFrameLoaderClient,
    // but in the meantime we have to make sure not to mis-cast.
    WebFrameLoaderClient* webFrameLoaderClient = toWebFrameLoaderClient(resourceLoader->frameLoader()->client());
    WebFrame* webFrame = webFrameLoaderClient ? webFrameLoaderClient->webFrame() : 0;
    WebPage* webPage = webFrame ? webFrame->page() : 0;

    NetworkResourceLoadParameters loadParameters;
    loadParameters.identifier = identifier;
    loadParameters.webPageID = webPage ? webPage->pageID() : 0;
    loadParameters.webFrameID = webFrame ? webFrame->frameID() : 0;
    loadParameters.sessionID = webPage ? webPage->sessionID() : SessionID::defaultSessionID();
    loadParameters.request = resourceLoader->request();
    loadParameters.contentSniffingPolicy = contentSniffingPolicy;
    loadParameters.allowStoredCredentials = allowStoredCredentials;
    // If there is no WebFrame then this resource cannot be authenticated with the client.
    loadParameters.clientCredentialPolicy = (webFrame && webPage && resourceLoader->isAllowedToAskUserForCredentials()) ? AskClientForAllCredentials : DoNotAskClientForAnyCredentials;
    loadParameters.shouldClearReferrerOnHTTPSToHTTPRedirect = shouldClearReferrerOnHTTPSToHTTPRedirect;
    loadParameters.defersLoading = resourceLoader->defersLoading();
    loadParameters.needsCertificateInfo = resourceLoader->shouldIncludeCertificateInfo();
    loadParameters.maximumBufferingTime = maximumBufferingTime(resource);

    ASSERT((loadParameters.webPageID && loadParameters.webFrameID) || loadParameters.clientCredentialPolicy == DoNotAskClientForAnyCredentials);

    if (!WebProcess::singleton().networkConnection()->connection()->send(Messages::NetworkConnectionToWebProcess::ScheduleResourceLoad(loadParameters), 0)) {
        WEBLOADERSTRATEGY_LOG_ALWAYS_ERROR("WebLoaderStrategy::scheduleLoad: Unable to schedule resource with the NetworkProcess with priority = %d, pageID = %llu, frameID = %llu", static_cast<int>(resourceLoader->request().priority()), static_cast<unsigned long long>(loadParameters.webPageID), static_cast<unsigned long long>(loadParameters.webFrameID));
        // We probably failed to schedule this load with the NetworkProcess because it had crashed.
        // This load will never succeed so we will schedule it to fail asynchronously.
        scheduleInternallyFailedLoad(resourceLoader);
        return;
    }

    auto webResourceLoader = WebResourceLoader::create(resourceLoader);
    WEBLOADERSTRATEGY_LOG_ALWAYS("WebLoaderStrategy::scheduleLoad: Resource will be scheduled with the NetworkProcess with priority = %d, pageID = %llu, frameID = %llu, WebResourceLoader = %p", static_cast<int>(resourceLoader->request().priority()), static_cast<unsigned long long>(loadParameters.webPageID), static_cast<unsigned long long>(loadParameters.webFrameID), webResourceLoader.ptr());
    m_webResourceLoaders.set(identifier, WTFMove(webResourceLoader));
}