C++ ResourceResponse函数代码示例

bool ArgumentCoder<ResourceResponse>::decode(ArgumentDecoder* decoder, ResourceResponse& resourceResponse)
{
#if USE(CFNETWORK)
    bool responseIsPresent;
    if (!decoder->decode(responseIsPresent))
        return false;

    if (!responseIsPresent) {
        resourceResponse = ResourceResponse();
        return true;
    }

    RetainPtr<CFDictionaryRef> dictionary;
    if (!CoreIPC::decode(decoder, dictionary))
        return false;

    RetainPtr<CFURLResponseRef> cfURLResponse(AdoptCF, wkCFURLResponseCreateFromSerializableRepresentation(dictionary.get(), CoreIPC::tokenNullTypeRef()));
    if (!cfURLResponse)
        return false;

    resourceResponse = ResourceResponse(cfURLResponse.get());
    return true;
#else
    return false;
#endif
}

TEST(ImageResourceTest, DecodedDataRemainsWhileHasClients)
{
    ResourcePtr<ImageResource> cachedImage = new ImageResource(ResourceRequest(), nullptr);
    cachedImage->setLoading(true);

    MockImageResourceClient client(cachedImage);

    // Send the image response.
    cachedImage->responseReceived(ResourceResponse(KURL(), "multipart/x-mixed-replace", 0, nullAtom, String()), nullptr);

    Vector<unsigned char> jpeg = jpegImage();
    cachedImage->responseReceived(ResourceResponse(KURL(), "image/jpeg", jpeg.size(), nullAtom, String()), nullptr);
    cachedImage->appendData(reinterpret_cast<const char*>(jpeg.data()), jpeg.size());
    cachedImage->finish();
    ASSERT_FALSE(cachedImage->errorOccurred());
    ASSERT_TRUE(cachedImage->hasImage());
    ASSERT_FALSE(cachedImage->image()->isNull());
    ASSERT_TRUE(client.notifyFinishedCalled());

    // The prune comes when the ImageResource still has clients. The image should not be deleted.
    cachedImage->prune();
    ASSERT_TRUE(cachedImage->hasClients());
    ASSERT_TRUE(cachedImage->hasImage());
    ASSERT_FALSE(cachedImage->image()->isNull());

    // The ImageResource no longer has clients. The image should be deleted by prune.
    client.removeAsClient();
    cachedImage->prune();
    ASSERT_FALSE(cachedImage->hasClients());
    ASSERT_FALSE(cachedImage->hasImage());
    ASSERT_TRUE(cachedImage->image()->isNull());
}

WebCore::ResourceResponse core(WebKitNetworkResponse* response)
{
    SoupMessage* soupMessage = webkit_network_response_get_message(response);
    if (soupMessage)
        return ResourceResponse(soupMessage);

    return ResourceResponse();
}

PassOwnPtr<ResourceTimingInfo> ResourceTimingInfo::adopt(PassOwnPtr<CrossThreadResourceTimingInfoData> data)
{
    OwnPtr<ResourceTimingInfo> info = ResourceTimingInfo::create(AtomicString(data->m_type), data->m_initialTime, data->m_isMainResource);
    info->m_originalTimingAllowOrigin = AtomicString(data->m_originalTimingAllowOrigin);
    info->m_loadFinishTime = data->m_loadFinishTime;
    info->m_initialRequest = ResourceRequest(data->m_initialRequest.get());
    info->m_finalResponse = ResourceResponse(data->m_finalResponse.get());
    for (auto& responseData : data->m_redirectChain)
        info->m_redirectChain.append(ResourceResponse(responseData.get()));
    return info.release();
}

static ResourceResponse createResourceResponseFromPropertyListData(CFDataRef data, CFStringRef responseDataType)
{
    ASSERT(data);
    if (!data)
        return ResourceResponse();
    
    // If the ResourceResponseVersion (passed in as responseDataType) exists at all, this is a "new" webarchive that we can parse well in a cross platform manner
    // If it doesn't exist, we will assume this is an "old" Cocoa-based WebArchive, and parse the ResourceResponse as such
    if (!responseDataType)
        return createResourceResponseFromMacArchivedData(data);
        
    // FIXME: Parse the "new" format that the above comment references here
    return ResourceResponse();
}

ResourceResponse LegacyWebArchive::createResourceResponseFromPropertyListData(CFDataRef data, CFStringRef responseDataType)
{
    ASSERT(data);
    if (!data)
        return ResourceResponse();
    
    // If the ResourceResponseVersion (passed in as responseDataType) exists at all, this is a "new" web archive that we
    // can parse well in a cross platform manner If it doesn't exist, we will assume this is an "old" web archive with,
    // NSURLResponse objects in it and parse the ResourceResponse as such.
    if (!responseDataType)
        return createResourceResponseFromMacArchivedData(data);
        
    // FIXME: Parse the "new" format that the above comment references here. This format doesn't exist yet.
    return ResourceResponse();
}

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());
    }
}

bool ResourceLoader::load(const ResourceRequest& r)
{
    ASSERT(!m_handle);
    ASSERT(m_deferredRequest.isNull());
    ASSERT(!m_documentLoader->isSubstituteLoadPending(this));
    
    ResourceRequest clientRequest(r);
    willSendRequest(clientRequest, ResourceResponse());
    if (clientRequest.isNull()) {
        didFail(frameLoader()->cancelledError(r));
        return false;
    }
    
    if (m_documentLoader->scheduleArchiveLoad(this, clientRequest, r.url()))
        return true;
    
#if ENABLE(OFFLINE_WEB_APPLICATIONS)
    if (m_documentLoader->applicationCacheHost()->maybeLoadResource(this, clientRequest, r.url()))
        return true;
#endif

    if (m_defersLoading) {
        m_deferredRequest = clientRequest;
        return true;
    }
    
    m_handle = ResourceHandle::create(clientRequest, this, m_frame.get(), m_defersLoading, m_shouldContentSniff, true);

    return true;
}

void ResourceHandle::loadResourceSynchronously(const ResourceRequest& request, ResourceError& error, ResourceResponse& response, Vector<char>& vector, Frame*)
{
    ASSERT(!request.isEmpty());
    CFURLResponseRef cfResponse = 0;
    CFErrorRef cfError = 0;
    RetainPtr<CFURLRequestRef> cfRequest(AdoptCF, makeFinalRequest(request, true));

    CFDataRef data = CFURLConnectionSendSynchronousRequest(cfRequest.get(), &cfResponse, &cfError, request.timeoutInterval());

    if (cfError) {
        error = cfError;
        CFRelease(cfError);

        response = ResourceResponse(request.url(), String(), 0, String(), String());
        response.setHTTPStatusCode(404);
    } else {
        response = cfResponse;
        if (cfResponse)
            CFRelease(cfResponse);
    }

    if (data) {
        ASSERT(vector.isEmpty());
        vector.append(CFDataGetBytePtr(data), CFDataGetLength(data));
        CFRelease(data);
    }
}

bool ResourceLoader::load(const ResourceRequest& r)
{
    ASSERT(!m_handle);
    ASSERT(m_deferredRequest.isNull());
    ASSERT(!frameLoader()->isArchiveLoadPending(this));
    
    m_originalURL = r.url();
    
    ResourceRequest clientRequest(r);
    willSendRequest(clientRequest, ResourceResponse());
    if (clientRequest.isNull()) {
        didFail(frameLoader()->cancelledError(r));
        return false;
    }
    
    if (frameLoader()->willUseArchive(this, clientRequest, m_originalURL))
        return true;
    
    if (m_defersLoading) {
        m_deferredRequest = clientRequest;
        return true;
    }
    
    m_handle = ResourceHandle::create(clientRequest, this, m_frame.get(), m_defersLoading, m_shouldContentSniff, true);

    return true;
}

bool ResourceLoader::init(const ResourceRequest& r) {
    ResourceRequest clientRequest(r);

    willSendRequest(clientRequest, ResourceResponse());
    m_request = clientRequest;
    return true;
}

ResourceResponse LegacyWebArchive::createResourceResponseFromMacArchivedData(CFDataRef responseData)
{
    // FIXME: If is is possible to parse in a serialized NSURLResponse manually, without using
    // NSKeyedUnarchiver, manipulating plists directly, then we want to do that here.
    // Until then, this can be done on Mac only.
    return ResourceResponse();
}

void MainResourceLoader::didReceiveData(const char* data, int length, long long encodedDataLength, bool allAtOnce)
{
    ASSERT(data);
    ASSERT(length != 0);

    ASSERT(!m_response.isNull());

#if USE(CFNETWORK) || PLATFORM(MAC)
    // Workaround for <rdar://problem/6060782>
    if (m_response.isNull()) {
        m_response = ResourceResponse(KURL(), "text/html", 0, String(), String());
        if (DocumentLoader* documentLoader = frameLoader()->activeDocumentLoader())
            documentLoader->setResponse(m_response);
    }
#endif

    // There is a bug in CFNetwork where callbacks can be dispatched even when loads are deferred.
    // See <rdar://problem/6304600> for more details.
#if !USE(CF)
    ASSERT(!defersLoading());
#endif
 
 #if ENABLE(OFFLINE_WEB_APPLICATIONS)
    documentLoader()->applicationCacheHost()->mainResourceDataReceived(data, length, encodedDataLength, allAtOnce);
#endif

    // The additional processing can do anything including possibly removing the last
    // reference to this object; one example of this is 3266216.
    RefPtr<MainResourceLoader> protect(this);

    m_timeOfLastDataReceived = currentTime();

    ResourceLoader::didReceiveData(data, length, encodedDataLength, allAtOnce);
}

PassRefPtr<ResourceHandle> ApplicationCacheGroup::createResourceHandle(const KURL& url, ApplicationCacheResource* newestCachedResource)
{
    ResourceRequest request(url);
    m_frame->loader()->applyUserAgent(request);
    request.setHTTPHeaderField("Cache-Control", "max-age=0");

    if (newestCachedResource) {
        const String& lastModified = newestCachedResource->response().httpHeaderField("Last-Modified");
        const String& eTag = newestCachedResource->response().httpHeaderField("ETag");
        if (!lastModified.isEmpty() || !eTag.isEmpty()) {
            if (!lastModified.isEmpty())
                request.setHTTPHeaderField("If-Modified-Since", lastModified);
            if (!eTag.isEmpty())
                request.setHTTPHeaderField("If-None-Match", eTag);
        }
    }

    RefPtr<ResourceHandle> handle = ResourceHandle::create(m_frame->loader()->networkingContext(), request, this, false, true);
#if ENABLE(INSPECTOR)
    // Because willSendRequest only gets called during redirects, we initialize
    // the identifier and the first willSendRequest here.
    m_currentResourceIdentifier = m_frame->page()->progress()->createUniqueIdentifier();
    if (Page* page = m_frame->page()) {
        InspectorController* inspectorController = page->inspectorController();
        inspectorController->identifierForInitialRequest(m_currentResourceIdentifier, m_frame->loader()->documentLoader(), handle->firstRequest());
        ResourceResponse redirectResponse = ResourceResponse();
        inspectorController->willSendRequest(m_currentResourceIdentifier, request, redirectResponse);
    }
#endif
    return handle;
}

void XMLHttpRequest::clearResponse()
{
    m_response = ResourceResponse();
    {
        JSC::JSLock lock(false);
        m_responseText = "";
    }
    m_createdDocument = false;
    m_responseXML = 0;
}