bool MainResourceLoader::loadNow(ResourceRequest& r)
{
bool shouldLoadEmptyBeforeRedirect = shouldLoadAsEmptyDocument(r.url());
ASSERT(!m_handle);
ASSERT(shouldLoadEmptyBeforeRedirect || !defersLoading());
// Send this synthetic delegate callback since clients expect it, and
// we no longer send the callback from within NSURLConnection for
// initial requests.
willSendRequest(r, ResourceResponse());
ASSERT(!deletionHasBegun());
// <rdar://problem/4801066>
// willSendRequest() is liable to make the call to frameLoader() return NULL, so we need to check that here
if (!frameLoader())
return false;
const KURL& url = r.url();
bool shouldLoadEmpty = shouldLoadAsEmptyDocument(url) && !m_substituteData.isValid();
if (shouldLoadEmptyBeforeRedirect && !shouldLoadEmpty && defersLoading())
return true;
resourceLoadScheduler()->addMainResourceLoad(this);
if (m_substituteData.isValid())
handleSubstituteDataLoadSoon(r);
else if (shouldLoadEmpty || frameLoader()->client()->representationExistsForURLScheme(url.protocol()))
handleEmptyLoad(url, !shouldLoadEmpty);
else
m_handle = ResourceHandle::create(m_frame->loader()->networkingContext(), r, this, false, true);
return false;
}
bool ResourceLoader::init(const ResourceRequest& r)
{
ASSERT(!m_handle);
ASSERT(m_request.isNull());
ASSERT(m_deferredRequest.isNull());
ASSERT(!m_documentLoader->isSubstituteLoadPending(this));
ResourceRequest clientRequest(r);
m_defersLoading = m_frame->page()->defersLoading();
if (m_options.securityCheck == DoSecurityCheck && !m_frame->document()->securityOrigin()->canDisplay(clientRequest.url())) {
FrameLoader::reportLocalLoadFailed(m_frame.get(), clientRequest.url().string());
releaseResources();
return false;
}
// https://bugs.webkit.org/show_bug.cgi?id=26391
// The various plug-in implementations call directly to ResourceLoader::load() instead of piping requests
// through FrameLoader. As a result, they miss the FrameLoader::addExtraFieldsToRequest() step which sets
// up the 1st party for cookies URL. Until plug-in implementations can be reigned in to pipe through that
// method, we need to make sure there is always a 1st party for cookies set.
if (clientRequest.firstPartyForCookies().isNull()) {
if (Document* document = m_frame->document())
clientRequest.setFirstPartyForCookies(document->firstPartyForCookies());
}
willSendRequest(clientRequest, ResourceResponse());
if (clientRequest.isNull()) {
cancel();
return false;
}
m_originalRequest = m_request = clientRequest;
return true;
}
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)
{
ASSERT(!m_handle);
ASSERT(m_request.isNull());
ASSERT(m_deferredRequest.isNull());
ASSERT(!m_documentLoader->isSubstituteLoadPending(this));
ResourceRequest clientRequest(r);
// https://bugs.webkit.org/show_bug.cgi?id=26391
// The various plug-in implementations call directly to ResourceLoader::load() instead of piping requests
// through FrameLoader. As a result, they miss the FrameLoader::addExtraFieldsToRequest() step which sets
// up the 1st party for cookies URL. Until plug-in implementations can be reigned in to pipe through that
// method, we need to make sure there is always a 1st party for cookies set.
if (clientRequest.firstPartyForCookies().isNull()) {
if (Document* document = m_frame->document())
clientRequest.setFirstPartyForCookies(document->firstPartyForCookies());
}
m_request = clientRequest;
willSendRequest(m_request, ResourceResponse());
if (m_request.isNull()) {
didFail(frameLoader()->cancelledError(m_request));
return false;
}
return true;
}
bool ResourceLoader::init(const ResourceRequest& r) {
ResourceRequest clientRequest(r);
willSendRequest(clientRequest, ResourceResponse());
m_request = clientRequest;
return true;
}
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 ResourceLoader::willSendRequest(ResourceHandle*, ResourceRequest& request, const ResourceResponse& redirectResponse)
{
#if ENABLE(OFFLINE_WEB_APPLICATIONS)
if (documentLoader()->applicationCacheHost()->maybeLoadFallbackForRedirect(this, request, redirectResponse))
return;
#endif
willSendRequest(request, redirectResponse);
}
void MainResourceLoader::load(const ResourceRequest& initialRequest, const SubstituteData& substituteData)
{
// It appears that it is possible for this load to be cancelled and derefenced by the DocumentLoader
// in willSendRequest() if loadNow() is called.
RefPtr<MainResourceLoader> protect(this);
m_substituteData = substituteData;
ASSERT(documentLoader()->timing()->navigationStart());
ASSERT(!documentLoader()->timing()->fetchStart());
documentLoader()->timing()->markFetchStart();
ResourceRequest request(initialRequest);
// Send this synthetic delegate callback since clients expect it, and
// we no longer send the callback from within NSURLConnection for
// initial requests.
willSendRequest(request, ResourceResponse());
ASSERT(!deletionHasBegun());
// willSendRequest() may lead to our DocumentLoader being detached or cancelling the load via nulling the ResourceRequest.
if (!documentLoader()->frame() || request.isNull())
return;
documentLoader()->applicationCacheHost()->maybeLoadMainResource(request, m_substituteData);
if (m_substituteData.isValid()) {
m_identifierForLoadWithoutResourceLoader = m_documentLoader->frame()->page()->progress()->createUniqueIdentifier();
frameLoader()->notifier()->assignIdentifierToInitialRequest(m_identifierForLoadWithoutResourceLoader, documentLoader(), request);
frameLoader()->notifier()->dispatchWillSendRequest(documentLoader(), m_identifierForLoadWithoutResourceLoader, request, ResourceResponse());
handleSubstituteDataLoadSoon(request);
return;
}
DEFINE_STATIC_LOCAL(ResourceLoaderOptions, mainResourceLoadOptions,
(SendCallbacks, SniffContent, BufferData, AllowStoredCredentials, AskClientForCrossOriginCredentials, SkipSecurityCheck));
CachedResourceRequest cachedResourceRequest(request, mainResourceLoadOptions);
m_resource = documentLoader()->cachedResourceLoader()->requestMainResource(cachedResourceRequest);
if (!m_resource) {
documentLoader()->setRequest(ResourceRequest());
return;
}
if (!loader()) {
m_identifierForLoadWithoutResourceLoader = m_documentLoader->frame()->page()->progress()->createUniqueIdentifier();
frameLoader()->notifier()->assignIdentifierToInitialRequest(m_identifierForLoadWithoutResourceLoader, documentLoader(), request);
frameLoader()->notifier()->dispatchWillSendRequest(documentLoader(), m_identifierForLoadWithoutResourceLoader, request, ResourceResponse());
}
m_resource->addClient(this);
// A bunch of headers are set when the underlying ResourceLoader is created, and DocumentLoader::m_request needs to include those.
if (loader())
request = loader()->originalRequest();
// If there was a fragment identifier on initialRequest, the cache will have stripped it. DocumentLoader::m_request should include
// the fragment identifier, so add that back in.
if (equalIgnoringFragmentIdentifier(initialRequest.url(), request.url()))
request.setURL(initialRequest.url());
documentLoader()->setRequest(request);
}
void ResourceLoader::willSendRequest(ResourceHandle*, ResourceRequest& request, const ResourceResponse& redirectResponse)
{
#if ENABLE(OFFLINE_WEB_APPLICATIONS)
if (!redirectResponse.isNull() && !protocolHostAndPortAreEqual(request.url(), redirectResponse.url())) {
if (scheduleLoadFallbackResourceFromApplicationCache())
return;
}
#endif
willSendRequest(request, redirectResponse);
}
void DocumentLoader::startLoadingMainResource()
{
m_mainDocumentError = ResourceError();
timing()->markNavigationStart();
ASSERT(!m_mainResource);
ASSERT(!m_loadingMainResource);
m_loadingMainResource = true;
if (maybeLoadEmpty())
return;
ASSERT(timing()->navigationStart());
ASSERT(!timing()->fetchStart());
timing()->markFetchStart();
willSendRequest(m_request, ResourceResponse());
// willSendRequest() may lead to our Frame being detached or cancelling the load via nulling the ResourceRequest.
if (!m_frame || m_request.isNull())
return;
m_applicationCacheHost->willStartLoadingMainResource(m_request);
prepareSubframeArchiveLoadIfNeeded();
if (m_substituteData.isValid()) {
m_identifierForLoadWithoutResourceLoader = createUniqueIdentifier();
frameLoader()->notifier()->dispatchWillSendRequest(this, m_identifierForLoadWithoutResourceLoader, m_request, ResourceResponse());
handleSubstituteDataLoadSoon();
return;
}
ResourceRequest request(m_request);
DEFINE_STATIC_LOCAL(ResourceLoaderOptions, mainResourceLoadOptions,
(SendCallbacks, SniffContent, DoNotBufferData, AllowStoredCredentials, ClientRequestedCredentials, AskClientForCrossOriginCredentials, SkipSecurityCheck, CheckContentSecurityPolicy, UseDefaultOriginRestrictionsForType));
CachedResourceRequest cachedResourceRequest(request, cachedResourceRequestInitiators().document, mainResourceLoadOptions);
m_mainResource = m_cachedResourceLoader->requestMainResource(cachedResourceRequest);
if (!m_mainResource) {
setRequest(ResourceRequest());
// If the load was aborted by clearing m_request, it's possible the ApplicationCacheHost
// is now in a state where starting an empty load will be inconsistent. Replace it with
// a new ApplicationCacheHost.
m_applicationCacheHost = adoptPtr(new ApplicationCacheHost(this));
maybeLoadEmpty();
return;
}
m_mainResource->addClient(this);
// A bunch of headers are set when the underlying ResourceLoader is created, and m_request needs to include those.
if (mainResourceLoader())
request = mainResourceLoader()->originalRequest();
// If there was a fragment identifier on m_request, the cache will have stripped it. m_request should include
// the fragment identifier, so add that back in.
if (equalIgnoringFragmentIdentifier(m_request.url(), request.url()))
request.setURL(m_request.url());
setRequest(request);
}
void ResourceFetcher::notifyLoadedFromMemoryCache(Resource* resource)
{
if (!frame() || !frame()->page() || resource->status() != Resource::Cached || m_validatedURLs.contains(resource->url()))
return;
ResourceRequest request(resource->url());
unsigned long identifier = createUniqueIdentifier();
context().dispatchDidLoadResourceFromMemoryCache(request, resource->response());
// FIXME: If willSendRequest changes the request, we don't respect it.
willSendRequest(identifier, request, ResourceResponse(), resource->options().initiatorInfo);
context().sendRemainingDelegateMessages(m_document, identifier, resource->response(), resource->encodedSize());
}
void ContentFilter::redirectReceived(CachedResource* resource, ResourceRequest& request, const ResourceResponse& redirectResponse)
{
ASSERT(resource);
ASSERT(resource == m_mainResource);
ASSERT(m_state != State::Initialized);
if (m_state == State::Filtering)
willSendRequest(request, redirectResponse);
if (m_state != State::Blocked)
m_documentLoader.redirectReceived(resource, request, redirectResponse);
}
void DocumentLoader::startLoadingMainResource()
{
RefPtr<DocumentLoader> protect(this);
m_mainDocumentError = ResourceError();
timing()->markNavigationStart();
ASSERT(!m_mainResource);
ASSERT(!m_loadingMainResource);
m_loadingMainResource = true;
if (maybeLoadEmpty())
return;
ASSERT(timing()->navigationStart());
ASSERT(!timing()->fetchStart());
timing()->markFetchStart();
willSendRequest(m_request, ResourceResponse());
// willSendRequest() may lead to our LocalFrame being detached or cancelling the load via nulling the ResourceRequest.
if (!m_frame || m_request.isNull())
return;
m_applicationCacheHost->willStartLoadingMainResource(m_request);
prepareSubframeArchiveLoadIfNeeded();
ResourceRequest request(m_request);
DEFINE_STATIC_LOCAL(ResourceLoaderOptions, mainResourceLoadOptions,
(DoNotBufferData, AllowStoredCredentials, ClientRequestedCredentials, CheckContentSecurityPolicy, DocumentContext));
FetchRequest cachedResourceRequest(request, FetchInitiatorTypeNames::document, mainResourceLoadOptions);
m_mainResource = m_fetcher->fetchMainResource(cachedResourceRequest, m_substituteData);
if (!m_mainResource) {
m_request = ResourceRequest();
// If the load was aborted by clearing m_request, it's possible the ApplicationCacheHost
// is now in a state where starting an empty load will be inconsistent. Replace it with
// a new ApplicationCacheHost.
m_applicationCacheHost = ApplicationCacheHost::create(this);
maybeLoadEmpty();
return;
}
m_mainResource->addClient(this);
// A bunch of headers are set when the underlying ResourceLoader is created, and m_request needs to include those.
if (mainResourceLoader())
request = mainResourceLoader()->originalRequest();
// If there was a fragment identifier on m_request, the cache will have stripped it. m_request should include
// the fragment identifier, so add that back in.
if (equalIgnoringFragmentIdentifier(m_request.url(), request.url()))
request.setURL(m_request.url());
m_request = request;
}
void MainResourceLoader::load(const ResourceRequest& initialRequest, const SubstituteData& substituteData)
{
// It appears that it is possible for this load to be cancelled and derefenced by the DocumentLoader
// in willSendRequest() if loadNow() is called.
RefPtr<MainResourceLoader> protect(this);
m_substituteData = substituteData;
ASSERT(documentLoader()->timing()->navigationStart());
ASSERT(!documentLoader()->timing()->fetchStart());
documentLoader()->timing()->markFetchStart();
ResourceRequest request(initialRequest);
// Send this synthetic delegate callback since clients expect it, and
// we no longer send the callback from within NSURLConnection for
// initial requests.
willSendRequest(request, ResourceResponse());
ASSERT(!deletionHasBegun());
// willSendRequest() may lead to our DocumentLoader being detached or cancelling the load via nulling the ResourceRequest.
if (!documentLoader()->frame() || request.isNull())
return;
documentLoader()->applicationCacheHost()->maybeLoadMainResource(request, m_substituteData);
if (m_substituteData.isValid()) {
handleSubstituteDataLoadSoon(request);
return;
}
DEFINE_STATIC_LOCAL(ResourceLoaderOptions, mainResourceLoadOptions,
(SendCallbacks, SniffContent, BufferData, AllowStoredCredentials, AskClientForCrossOriginCredentials, SkipSecurityCheck));
CachedResourceRequest cachedResourceRequest(request, mainResourceLoadOptions);
m_resource = documentLoader()->cachedResourceLoader()->requestMainResource(cachedResourceRequest);
if (!m_resource) {
documentLoader()->setRequest(ResourceRequest());
return;
}
m_resource->addClient(this);
// We need to wait until after requestMainResource() is called to setRequest(), because there are a bunch of headers set when
// the underlying ResourceLoader is created, and DocumentLoader::m_request needs to include those. However, the cache will
// strip the fragment identifier (which DocumentLoader::m_request should also include), so add that back in.
if (loader())
request = loader()->originalRequest();
documentLoader()->setRequest(request);
}
bool ResourceLoader::load(const ResourceRequest& r)
{
ASSERT(!m_handle);
ASSERT(m_deferredRequest.isNull());
ASSERT(!m_documentLoader->isSubstituteLoadPending(this));
ResourceRequest clientRequest(r);
// https://bugs.webkit.org/show_bug.cgi?id=26391
// The various plug-in implementations call directly to ResourceLoader::load() instead of piping requests
// through FrameLoader. As a result, they miss the FrameLoader::addExtraFieldsToRequest() step which sets
// up the 1st party for cookies URL. Until plug-in implementations can be reigned in to pipe through that
// method, we need to make sure there is always a 1st party for cookies set.
if (clientRequest.firstPartyForCookies().isNull()) {
if (Document* document = m_frame->document())
clientRequest.setFirstPartyForCookies(document->firstPartyForCookies());
}
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;
// Based on http://www.w3.org/TR/html5/offline.html, any urls listed in FALLBACK or NETWORK should bypass cache.
if (m_documentLoader->applicationCacheHost()->isFallbackOrNetworkResource(clientRequest.url()))
clientRequest.setCachePolicy(ReloadIgnoringCacheData);
#endif
if (m_defersLoading) {
m_deferredRequest = clientRequest;
return true;
}
m_handle = ResourceHandle::create(m_frame->loader()->networkingContext(), clientRequest, this, m_defersLoading, m_shouldContentSniff);
return true;
}
bool ResourceLoader::init(const ResourceRequest& r)
{
ASSERT(!m_handle);
ASSERT(m_request.isNull());
ASSERT(m_deferredRequest.isNull());
ResourceRequest clientRequest(r);
willSendRequest(0, clientRequest, ResourceResponse());
if (clientRequest.isNull()) {
cancel();
return false;
}
ASSERT(m_state != Terminated);
m_originalRequest = m_request = clientRequest;
m_state = Initialized;
m_documentLoader->addResourceLoader(this);
return true;
}
void MainResourceLoader::load(const ResourceRequest& r, const SubstituteData& substituteData)
{
ASSERT(!m_handle);
// It appears that it is possible for this load to be cancelled and derefenced by the DocumentLoader
// in willSendRequest() if loadNow() is called.
RefPtr<MainResourceLoader> protect(this);
m_substituteData = substituteData;
ASSERT(documentLoader()->timing()->navigationStart());
ASSERT(!documentLoader()->timing()->fetchStart());
documentLoader()->timing()->markFetchStart();
ResourceRequest request(r);
// Send this synthetic delegate callback since clients expect it, and
// we no longer send the callback from within NSURLConnection for
// initial requests.
willSendRequest(request, ResourceResponse());
ASSERT(!deletionHasBegun());
// <rdar://problem/4801066>
// willSendRequest() is liable to make the call to frameLoader() return null, so we need to check that here
if (!frameLoader() || request.isNull()) {
if (!reachedTerminalState())
releaseResources();
return;
}
documentLoader()->applicationCacheHost()->maybeLoadMainResource(request, m_substituteData);
if (defersLoading())
m_initialRequest = request;
else
loadNow(request);
}
void DocumentLoader::redirectReceived(Resource* resource, ResourceRequest& request, const ResourceResponse& redirectResponse)
{
ASSERT_UNUSED(resource, resource == m_mainResource);
willSendRequest(request, redirectResponse);
}
void ResourceLoader::willSendRequest(ResourceHandle*, ResourceRequest& request, const ResourceResponse& redirectResponse)
{
if (documentLoader()->applicationCacheHost()->maybeLoadFallbackForRedirect(this, request, redirectResponse))
return;
willSendRequest(request, redirectResponse);
}
void ResourceLoader::willSendRequest(ResourceHandle*, ResourceRequest& request, const ResourceResponse& redirectResponse)
{
willSendRequest(request, redirectResponse);
}
void MainResourceLoader::redirectReceived(CachedResource* resource, ResourceRequest& request, const ResourceResponse& redirectResponse)
{
ASSERT_UNUSED(resource, resource == m_resource);
willSendRequest(request, redirectResponse);
}
void ResourceLoader::willSendRequest(ResourceRequest&& request, const ResourceResponse& redirectResponse, std::function<void(ResourceRequest&)> callback)
{
willSendRequest(request, redirectResponse);
callback(request);
}
