// Returns true if we should block the load.
static bool processContentExtensionRulesForLoad(const Frame& frame, ResourceRequest& request, ResourceType resourceType)
{
auto* documentLoader = frame.loader().documentLoader();
if (!documentLoader)
return false;
auto* page = frame.page();
if (!page)
return false;
auto status = page->userContentProvider().processContentExtensionRulesForLoad(request.url(), resourceType, *documentLoader);
applyBlockedStatusToRequest(status, request);
return status.blockedLoad;
}
void ResourceLoader::willSendRequestInternal(ResourceRequest& request, const ResourceResponse& redirectResponse)
{
// Protect this in this delegate method since the additional processing can do
// anything including possibly derefing this; one example of this is Radar 3266216.
Ref<ResourceLoader> protectedThis(*this);
ASSERT(!m_reachedTerminalState);
#if ENABLE(CONTENT_EXTENSIONS)
ASSERT(m_resourceType != ResourceType::Invalid);
#endif
// We need a resource identifier for all requests, even if FrameLoader is never going to see it (such as with CORS preflight requests).
bool createdResourceIdentifier = false;
if (!m_identifier) {
m_identifier = m_frame->page()->progress().createUniqueIdentifier();
createdResourceIdentifier = true;
}
#if ENABLE(CONTENT_EXTENSIONS)
if (frameLoader()) {
Page* page = frameLoader()->frame().page();
if (page && m_documentLoader) {
auto blockedStatus = page->userContentProvider().processContentExtensionRulesForLoad(request.url(), m_resourceType, *m_documentLoader);
applyBlockedStatusToRequest(blockedStatus, request);
if (blockedStatus.blockedLoad) {
request = { };
didFail(blockedByContentBlockerError());
return;
}
}
}
#endif
if (request.isNull()) {
didFail(cannotShowURLError());
return;
}
if (m_options.sendLoadCallbacks == SendCallbacks) {
if (createdResourceIdentifier)
frameLoader()->notifier().assignIdentifierToInitialRequest(m_identifier, documentLoader(), request);
#if PLATFORM(IOS)
// If this ResourceLoader was stopped as a result of assignIdentifierToInitialRequest, bail out
if (m_reachedTerminalState)
return;
#endif
frameLoader()->notifier().willSendRequest(this, request, redirectResponse);
}
else
InspectorInstrumentation::willSendRequest(m_frame.get(), m_identifier, m_frame->loader().documentLoader(), request, redirectResponse);
bool isRedirect = !redirectResponse.isNull();
if (isRedirect)
platformStrategies()->loaderStrategy()->crossOriginRedirectReceived(this, request.url());
m_request = request;
if (isRedirect) {
auto& redirectURL = request.url();
if (!m_documentLoader->isCommitted())
frameLoader()->client().dispatchDidReceiveServerRedirectForProvisionalLoad();
if (redirectURL.protocolIsData()) {
// Handle data URL decoding locally.
finishNetworkLoad();
loadDataURL();
}
}
}
