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;
}
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 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);
}
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);
}
