bool DocumentLoader::scheduleLoadFallbackResourceFromApplicationCache(ResourceLoader* loader, const ResourceRequest& request, ApplicationCache* cache)
{
if (!frameLoader()->frame()->settings() || !frameLoader()->frame()->settings()->offlineWebApplicationCacheEnabled())
return false;
ApplicationCacheResource* resource;
if (!getApplicationCacheFallbackResource(request, resource, cache))
return false;
m_pendingSubstituteResources.set(loader, resource);
deliverSubstituteResourcesAfterDelay();
return true;
}
bool ApplicationCacheHost::scheduleLoadFallbackResourceFromApplicationCache(ResourceLoader* loader, ApplicationCache* cache)
{
if (!isApplicationCacheEnabled() && !isApplicationCacheBlockedForRequest(loader->request()))
return false;
ApplicationCacheResource* resource;
if (!getApplicationCacheFallbackResource(loader->request(), resource, cache))
return false;
loader->willSwitchToSubstituteResource();
m_documentLoader.scheduleSubstituteResourceLoad(*loader, *resource);
return true;
}
void ApplicationCacheHost::maybeLoadFallbackSynchronously(const ResourceRequest& request, ResourceError& error, ResourceResponse& response, Vector<char>& data)
{
// If normal loading results in a redirect to a resource with another origin (indicative of a captive portal), or a 4xx or 5xx status code or equivalent,
// or if there were network errors (but not if the user canceled the download), then instead get, from the cache, the resource of the fallback entry
// corresponding to the matched namespace.
if ((!error.isNull() && !error.isCancellation())
|| response.httpStatusCode() / 100 == 4 || response.httpStatusCode() / 100 == 5
|| !protocolHostAndPortAreEqual(request.url(), response.url())) {
ApplicationCacheResource* resource;
if (getApplicationCacheFallbackResource(request, resource)) {
response = resource->response();
data.clear();
data.append(resource->data()->data(), resource->data()->size());
}
}
}
bool ApplicationCacheHost::scheduleLoadFallbackResourceFromApplicationCache(ResourceLoader* loader, ApplicationCache* cache)
{
if (!isApplicationCacheEnabled())
return false;
ApplicationCacheResource* resource;
if (!getApplicationCacheFallbackResource(loader->request(), resource, cache))
return false;
m_documentLoader->m_pendingSubstituteResources.set(loader, resource);
m_documentLoader->deliverSubstituteResourcesAfterDelay();
loader->handle()->cancel();
return true;
}
void ApplicationCacheHost::maybeLoadFallbackSynchronously(const ResourceRequest& request, ResourceError& error, ResourceResponse& response, RefPtr<SharedBuffer>& data)
{
// If normal loading results in a redirect to a resource with another origin (indicative of a captive portal), or a 4xx or 5xx status code or equivalent,
// or if there were network errors (but not if the user canceled the download), then instead get, from the cache, the resource of the fallback entry
// corresponding to the matched namespace.
if ((!error.isNull() && !error.isCancellation())
|| response.httpStatusCode() / 100 == 4 || response.httpStatusCode() / 100 == 5
|| !protocolHostAndPortAreEqual(request.url(), response.url())) {
ApplicationCacheResource* resource;
if (getApplicationCacheFallbackResource(request, resource)) {
response = resource->response();
// FIXME: Clients proably do not need a copy of the SharedBuffer.
// Remove the call to copy() once we ensure SharedBuffer will not be modified.
data = resource->data().copy();
}
}
}
