void MainResourceLoader::stopLoadingForPolicyChange()
{
ResourceError error = interruptedForPolicyChangeError();
error.setIsCancellation(true);
cancel(error);
}
void MainResourceLoader::continueAfterContentPolicy(PolicyAction contentPolicy, const ResourceResponse& r)
{
KURL url = request().url();
const String& mimeType = r.mimeType();
switch (contentPolicy) {
case PolicyUse: {
// Prevent remote web archives from loading because they can claim to be from any domain and thus avoid cross-domain security checks (4120255).
bool isRemoteWebArchive = (equalIgnoringCase("application/x-webarchive", mimeType)
#if PLATFORM(GTK)
|| equalIgnoringCase("message/rfc822", mimeType)
#endif
|| equalIgnoringCase("multipart/related", mimeType))
&& !m_substituteData.isValid() && !SchemeRegistry::shouldTreatURLSchemeAsLocal(url.protocol());
if (!frameLoader()->client()->canShowMIMEType(mimeType) || isRemoteWebArchive) {
frameLoader()->policyChecker()->cannotShowMIMEType(r);
// Check reachedTerminalState since the load may have already been canceled inside of _handleUnimplementablePolicyWithErrorCode::.
if (!reachedTerminalState())
stopLoadingForPolicyChange();
return;
}
break;
}
case PolicyDownload: {
// m_handle can be null, e.g. when loading a substitute resource from application cache.
if (!m_handle) {
receivedError(cannotShowURLError());
return;
}
InspectorInstrumentation::continueWithPolicyDownload(m_frame.get(), documentLoader(), identifier(), r);
// When starting the request, we didn't know that it would result in download and not navigation. Now we know that main document URL didn't change.
// Download may use this knowledge for purposes unrelated to cookies, notably for setting file quarantine data.
ResourceRequest request = this->request();
frameLoader()->setOriginalURLForDownloadRequest(request);
frameLoader()->client()->download(m_handle.get(), request, r);
// It might have gone missing
if (frameLoader())
receivedError(interruptedForPolicyChangeError());
return;
}
case PolicyIgnore:
InspectorInstrumentation::continueWithPolicyIgnore(m_frame.get(), documentLoader(), identifier(), r);
stopLoadingForPolicyChange();
return;
default:
ASSERT_NOT_REACHED();
}
RefPtr<MainResourceLoader> protect(this);
if (r.isHTTP()) {
int status = r.httpStatusCode();
if (status < 200 || status >= 300) {
bool hostedByObject = frameLoader()->isHostedByObjectElement();
frameLoader()->handleFallbackContent();
// object elements are no longer rendered after we fallback, so don't
// keep trying to process data from their load
if (hostedByObject)
cancel();
}
}
// we may have cancelled this load as part of switching to fallback content
if (!reachedTerminalState())
ResourceLoader::didReceiveResponse(r);
if (frameLoader() && !frameLoader()->activeDocumentLoader()->isStopping()) {
if (m_substituteData.isValid()) {
if (m_substituteData.content()->size())
didReceiveData(m_substituteData.content()->data(), m_substituteData.content()->size(), m_substituteData.content()->size(), true);
if (frameLoader() && !frameLoader()->activeDocumentLoader()->isStopping())
didFinishLoading(0);
} else if (shouldLoadAsEmptyDocument(url) || frameLoader()->client()->representationExistsForURLScheme(url.protocol()))
didFinishLoading(0);
}
}
void MainResourceLoader::continueAfterContentPolicy(PolicyAction contentPolicy, const ResourceResponse& r)
{
KURL url = request().url();
const String& mimeType = r.mimeType();
switch (contentPolicy) {
case PolicyUse: {
// Prevent remote web archives from loading because they can claim to be from any domain and thus avoid cross-domain security checks (4120255).
bool isRemoteWebArchive = (equalIgnoringCase("application/x-webarchive", mimeType) || equalIgnoringCase("multipart/related", mimeType))
&& !m_substituteData.isValid() && !url.isLocalFile();
if (!frameLoader()->client()->canShowMIMEType(mimeType) || isRemoteWebArchive) {
frameLoader()->policyChecker()->cannotShowMIMEType(r);
// Check reachedTerminalState since the load may have already been cancelled inside of _handleUnimplementablePolicyWithErrorCode::.
if (!reachedTerminalState())
stopLoadingForPolicyChange();
return;
}
break;
}
case PolicyDownload:
// m_handle can be null, e.g. when loading a substitute resource from application cache.
if (!m_handle) {
receivedError(cannotShowURLError());
return;
}
frameLoader()->client()->download(m_handle.get(), request(), m_handle.get()->firstRequest(), r);
// It might have gone missing
if (frameLoader())
receivedError(interruptedForPolicyChangeError());
return;
case PolicyIgnore:
stopLoadingForPolicyChange();
return;
default:
ASSERT_NOT_REACHED();
}
RefPtr<MainResourceLoader> protect(this);
if (r.isHTTP()) {
int status = r.httpStatusCode();
if (status < 200 || status >= 300) {
bool hostedByObject = frameLoader()->isHostedByObjectElement();
frameLoader()->handleFallbackContent();
// object elements are no longer rendered after we fallback, so don't
// keep trying to process data from their load
if (hostedByObject)
cancel();
}
}
// we may have cancelled this load as part of switching to fallback content
if (!reachedTerminalState())
ResourceLoader::didReceiveResponse(r);
if (frameLoader() && !frameLoader()->isStopping()) {
if (m_substituteData.isValid()) {
if (m_substituteData.content()->size())
didReceiveData(m_substituteData.content()->data(), m_substituteData.content()->size(), m_substituteData.content()->size(), true);
if (frameLoader() && !frameLoader()->isStopping())
didFinishLoading(0);
} else if (shouldLoadAsEmptyDocument(url) || frameLoader()->client()->representationExistsForURLScheme(url.protocol()))
didFinishLoading(0);
}
}
