void ApplicationCacheGroup::finishedLoadingMainResource(DocumentLoader* loader)
{
ASSERT(m_pendingMasterResourceLoaders.contains(loader));
ASSERT(m_completionType == None || m_pendingEntries.isEmpty());
URL url = loader->url();
if (url.hasFragmentIdentifier())
url.removeFragmentIdentifier();
switch (m_completionType) {
case None:
// The main resource finished loading before the manifest was ready. It will be handled via dispatchMainResources() later.
return;
case NoUpdate:
ASSERT(!m_cacheBeingUpdated);
associateDocumentLoaderWithCache(loader, m_newestCache.get());
if (ApplicationCacheResource* resource = m_newestCache->resourceForURL(url)) {
if (!(resource->type() & ApplicationCacheResource::Master)) {
resource->addType(ApplicationCacheResource::Master);
ASSERT(!resource->storageID());
}
} else {
RefPtr<ResourceBuffer> buffer = loader->mainResourceData();
m_newestCache->addResource(ApplicationCacheResource::create(url, loader->response(), ApplicationCacheResource::Master, buffer ? buffer->sharedBuffer() : 0));
}
break;
case Failure:
// Cache update has been a failure, so there is no reason to keep the document associated with the incomplete cache
// (its main resource was not cached yet, so it is likely that the application changed significantly server-side).
ASSERT(!m_cacheBeingUpdated); // Already cleared out by stopLoading().
loader->applicationCacheHost()->setApplicationCache(0); // Will unset candidate, too.
m_associatedDocumentLoaders.remove(loader);
postListenerTask(ApplicationCacheHost::ERROR_EVENT, loader);
break;
case Completed:
ASSERT(m_associatedDocumentLoaders.contains(loader));
if (ApplicationCacheResource* resource = m_cacheBeingUpdated->resourceForURL(url)) {
if (!(resource->type() & ApplicationCacheResource::Master)) {
resource->addType(ApplicationCacheResource::Master);
ASSERT(!resource->storageID());
}
} else {
RefPtr<ResourceBuffer> buffer = loader->mainResourceData();
m_cacheBeingUpdated->addResource(ApplicationCacheResource::create(url, loader->response(), ApplicationCacheResource::Master, buffer ? buffer->sharedBuffer() : 0));
}
// The "cached" event will be posted to all associated documents once update is complete.
break;
}
ASSERT(m_downloadingPendingMasterResourceLoadersCount > 0);
m_downloadingPendingMasterResourceLoadersCount--;
checkIfLoadIsComplete();
}
void ApplicationCacheGroup::checkIfLoadIsComplete()
{
ASSERT(m_cacheBeingUpdated);
if (m_manifestHandle)
return;
if (!m_pendingEntries.isEmpty())
return;
// We're done
bool isUpgradeAttempt = m_newestCache;
m_cacheBeingUpdated->setManifestResource(m_manifestResource.release());
Vector<RefPtr<DocumentLoader> > documentLoaders;
if (isUpgradeAttempt) {
ASSERT(m_cacheCandidates.isEmpty());
copyToVector(m_associatedDocumentLoaders, documentLoaders);
} else {
while (!m_cacheCandidates.isEmpty()) {
HashSet<DocumentLoader*>::iterator it = m_cacheCandidates.begin();
DocumentLoader* loader = *it;
ASSERT(!loader->applicationCache());
ASSERT(loader->candidateApplicationCacheGroup() == this);
associateDocumentLoaderWithCache(loader, m_cacheBeingUpdated.get());
documentLoaders.append(loader);
m_cacheCandidates.remove(it);
}
}
setNewestCache(m_cacheBeingUpdated.release());
// Store the cache
cacheStorage().storeNewestCache(this);
callListeners(isUpgradeAttempt ? &DOMApplicationCache::callUpdateReadyListener : &DOMApplicationCache::callCachedListener,
documentLoaders);
m_status = Idle;
m_frame = 0;
}
void ApplicationCacheGroup::didFinishLoadingManifest()
{
bool isUpgradeAttempt = m_newestCache;
if (!isUpgradeAttempt && !m_manifestResource) {
// The server returned 304 Not Modified even though we didn't send a conditional request.
m_frame->document()->addConsoleMessage(OtherMessageSource, ErrorMessageLevel, "Application Cache manifest could not be fetched because of an unexpected 304 Not Modified server response.");
cacheUpdateFailed();
return;
}
m_manifestHandle = 0;
// Check if the manifest was not modified.
if (isUpgradeAttempt) {
ApplicationCacheResource* newestManifest = m_newestCache->manifestResource();
ASSERT(newestManifest);
if (!m_manifestResource || // The resource will be null if HTTP response was 304 Not Modified.
(newestManifest->data()->size() == m_manifestResource->data()->size() && !memcmp(newestManifest->data()->data(), m_manifestResource->data()->data(), newestManifest->data()->size()))) {
m_completionType = NoUpdate;
m_manifestResource = 0;
deliverDelayedMainResources();
return;
}
}
Manifest manifest;
if (!parseManifest(m_manifestURL, m_manifestResource->data()->data(), m_manifestResource->data()->size(), manifest)) {
// At the time of this writing, lack of "CACHE MANIFEST" signature is the only reason for parseManifest to fail.
m_frame->document()->addConsoleMessage(OtherMessageSource, ErrorMessageLevel, "Application Cache manifest could not be parsed. Does it start with CACHE MANIFEST?");
cacheUpdateFailed();
return;
}
ASSERT(!m_cacheBeingUpdated);
m_cacheBeingUpdated = ApplicationCache::create();
m_cacheBeingUpdated->setGroup(this);
HashSet<DocumentLoader*>::const_iterator masterEnd = m_pendingMasterResourceLoaders.end();
for (HashSet<DocumentLoader*>::const_iterator iter = m_pendingMasterResourceLoaders.begin(); iter != masterEnd; ++iter)
associateDocumentLoaderWithCache(*iter, m_cacheBeingUpdated.get());
// We have the manifest, now download the resources.
setUpdateStatus(Downloading);
postListenerTask(ApplicationCacheHost::DOWNLOADING_EVENT, m_associatedDocumentLoaders);
ASSERT(m_pendingEntries.isEmpty());
if (isUpgradeAttempt) {
ApplicationCache::ResourceMap::const_iterator end = m_newestCache->end();
for (ApplicationCache::ResourceMap::const_iterator it = m_newestCache->begin(); it != end; ++it) {
unsigned type = it->value->type();
if (type & ApplicationCacheResource::Master)
addEntry(it->key, type);
}
}
HashSet<String>::const_iterator end = manifest.explicitURLs.end();
for (HashSet<String>::const_iterator it = manifest.explicitURLs.begin(); it != end; ++it)
addEntry(*it, ApplicationCacheResource::Explicit);
size_t fallbackCount = manifest.fallbackURLs.size();
for (size_t i = 0; i < fallbackCount; ++i)
addEntry(manifest.fallbackURLs[i].second, ApplicationCacheResource::Fallback);
m_cacheBeingUpdated->setOnlineWhitelist(manifest.onlineWhitelistedURLs);
m_cacheBeingUpdated->setFallbackURLs(manifest.fallbackURLs);
m_cacheBeingUpdated->setAllowsAllNetworkRequests(manifest.allowAllNetworkRequests);
m_progressTotal = m_pendingEntries.size();
m_progressDone = 0;
recalculateAvailableSpaceInQuota();
startLoadingEntry();
}
void ApplicationCacheGroup::didFinishLoadingManifest()
{
bool isUpgradeAttempt = m_newestCache;
if (!isUpgradeAttempt && !m_manifestResource) {
// The server returned 304 Not Modified even though we didn't send a conditional request.
cacheUpdateFailed();
return;
}
m_manifestHandle = 0;
// Check if the manifest was not modified.
if (isUpgradeAttempt) {
ApplicationCacheResource* newestManifest = m_newestCache->manifestResource();
ASSERT(newestManifest);
if (!m_manifestResource || // The resource will be null if HTTP response was 304 Not Modified.
(newestManifest->data()->size() == m_manifestResource->data()->size() && !memcmp(newestManifest->data()->data(), m_manifestResource->data()->data(), newestManifest->data()->size()))) {
m_completionType = NoUpdate;
m_manifestResource = 0;
deliverDelayedMainResources();
return;
}
}
Manifest manifest;
if (!parseManifest(m_manifestURL, m_manifestResource->data()->data(), m_manifestResource->data()->size(), manifest)) {
cacheUpdateFailed();
return;
}
ASSERT(!m_cacheBeingUpdated);
m_cacheBeingUpdated = ApplicationCache::create();
m_cacheBeingUpdated->setGroup(this);
HashSet<DocumentLoader*>::const_iterator masterEnd = m_pendingMasterResourceLoaders.end();
for (HashSet<DocumentLoader*>::const_iterator iter = m_pendingMasterResourceLoaders.begin(); iter != masterEnd; ++iter)
associateDocumentLoaderWithCache(*iter, m_cacheBeingUpdated.get());
// We have the manifest, now download the resources.
setUpdateStatus(Downloading);
postListenerTask(ApplicationCacheHost::DOWNLOADING_EVENT, m_associatedDocumentLoaders);
ASSERT(m_pendingEntries.isEmpty());
if (isUpgradeAttempt) {
ApplicationCache::ResourceMap::const_iterator end = m_newestCache->end();
for (ApplicationCache::ResourceMap::const_iterator it = m_newestCache->begin(); it != end; ++it) {
unsigned type = it->second->type();
if (type & ApplicationCacheResource::Master)
addEntry(it->first, type);
}
}
HashSet<String>::const_iterator end = manifest.explicitURLs.end();
for (HashSet<String>::const_iterator it = manifest.explicitURLs.begin(); it != end; ++it)
addEntry(*it, ApplicationCacheResource::Explicit);
size_t fallbackCount = manifest.fallbackURLs.size();
for (size_t i = 0; i < fallbackCount; ++i)
addEntry(manifest.fallbackURLs[i].second, ApplicationCacheResource::Fallback);
m_cacheBeingUpdated->setOnlineWhitelist(manifest.onlineWhitelistedURLs);
m_cacheBeingUpdated->setFallbackURLs(manifest.fallbackURLs);
m_cacheBeingUpdated->setAllowsAllNetworkRequests(manifest.allowAllNetworkRequests);
m_progressTotal = m_pendingEntries.size();
m_progressDone = 0;
startLoadingEntry();
}
void ApplicationCacheGroup::didFinishLoadingManifest()
{
bool isUpgradeAttempt = m_newestCache;
if (!isUpgradeAttempt && !m_manifestResource) {
// The server returned 304 Not Modified even though we didn't send a conditional request.
m_frame->document()->addConsoleMessage(MessageSource::AppCache, MessageLevel::Error, ASCIILiteral("Application Cache manifest could not be fetched because of an unexpected 304 Not Modified server response."));
cacheUpdateFailed();
return;
}
m_manifestHandle = nullptr;
// Check if the manifest was not modified.
if (isUpgradeAttempt) {
ApplicationCacheResource* newestManifest = m_newestCache->manifestResource();
ASSERT(newestManifest);
if (!m_manifestResource || // The resource will be null if HTTP response was 304 Not Modified.
(newestManifest->data().size() == m_manifestResource->data().size() && !memcmp(newestManifest->data().data(), m_manifestResource->data().data(), newestManifest->data().size()))) {
m_completionType = NoUpdate;
m_manifestResource = nullptr;
deliverDelayedMainResources();
return;
}
}
Manifest manifest;
if (!parseManifest(m_manifestURL, m_manifestResource->data().data(), m_manifestResource->data().size(), manifest)) {
// At the time of this writing, lack of "CACHE MANIFEST" signature is the only reason for parseManifest to fail.
m_frame->document()->addConsoleMessage(MessageSource::AppCache, MessageLevel::Error, ASCIILiteral("Application Cache manifest could not be parsed. Does it start with CACHE MANIFEST?"));
cacheUpdateFailed();
return;
}
ASSERT(!m_cacheBeingUpdated);
m_cacheBeingUpdated = ApplicationCache::create();
m_cacheBeingUpdated->setGroup(this);
for (auto& loader : m_pendingMasterResourceLoaders)
associateDocumentLoaderWithCache(loader, m_cacheBeingUpdated.get());
// We have the manifest, now download the resources.
setUpdateStatus(Downloading);
postListenerTask(ApplicationCacheHost::DOWNLOADING_EVENT, m_associatedDocumentLoaders);
ASSERT(m_pendingEntries.isEmpty());
if (isUpgradeAttempt) {
for (const auto& urlAndResource : m_newestCache->resources()) {
unsigned type = urlAndResource.value->type();
if (type & ApplicationCacheResource::Master)
addEntry(urlAndResource.key, type);
}
}
for (const auto& explicitURL : manifest.explicitURLs)
addEntry(explicitURL, ApplicationCacheResource::Explicit);
for (auto& fallbackURL : manifest.fallbackURLs)
addEntry(fallbackURL.second, ApplicationCacheResource::Fallback);
m_cacheBeingUpdated->setOnlineWhitelist(manifest.onlineWhitelistedURLs);
m_cacheBeingUpdated->setFallbackURLs(manifest.fallbackURLs);
m_cacheBeingUpdated->setAllowsAllNetworkRequests(manifest.allowAllNetworkRequests);
m_progressTotal = m_pendingEntries.size();
m_progressDone = 0;
recalculateAvailableSpaceInQuota();
startLoadingEntry();
}
