CachedResource* CachedResourceLoader::requestResource(CachedResource::Type type, const String& resourceURL, const String& charset, ResourceLoadPriority priority, bool forPreload) { KURL url = m_document->completeURL(resourceURL); LOG(ResourceLoading, "CachedResourceLoader::requestResource '%s', charset '%s', priority=%d, forPreload=%u", url.string().latin1().data(), charset.latin1().data(), priority, forPreload); // If only the fragment identifiers differ, it is the same resource. url = MemoryCache::removeFragmentIdentifierIfNeeded(url); if (!url.isValid()) return 0; if (!canRequest(type, url)) return 0; // FIXME: Figure out what is the correct way to merge this security check with the one above. if (!document()->securityOrigin()->canDisplay(url)) { if (!forPreload) FrameLoader::reportLocalLoadFailed(document()->frame(), url.string()); LOG(ResourceLoading, "CachedResourceLoader::requestResource URL was not allowed by SecurityOrigin::canDisplay"); return 0; } if (memoryCache()->disabled()) { DocumentResourceMap::iterator it = m_documentResources.find(url.string()); if (it != m_documentResources.end()) { it->second->setOwningCachedResourceLoader(0); m_documentResources.remove(it); } } // See if we can use an existing resource from the cache. CachedResource* resource = memoryCache()->resourceForURL(url); switch (determineRevalidationPolicy(type, forPreload, resource)) { case Load: resource = loadResource(type, url, charset, priority); break; case Reload: memoryCache()->remove(resource); resource = loadResource(type, url, charset, priority); break; case Revalidate: resource = revalidateResource(resource, priority); break; case Use: memoryCache()->resourceAccessed(resource); notifyLoadedFromMemoryCache(resource); break; } if (!resource) return 0; ASSERT(resource->url() == url.string()); m_documentResources.set(resource->url(), resource); return resource; }
void ResourceFetcher::requestLoadStarted(Resource* resource, const FetchRequest& request, ResourceLoadStartType type) { if (type == ResourceLoadingFromCache) notifyLoadedFromMemoryCache(resource); if (request.resourceRequest().url().protocolIsData()) return; m_validatedURLs.add(request.resourceRequest().url()); }
CachedResource* CachedResourceLoader::requestResource(CachedResource::Type type, ResourceRequest& request, const String& charset, ResourceLoadPriority priority, bool forPreload) { KURL url = request.url(); LOG(ResourceLoading, "CachedResourceLoader::requestResource '%s', charset '%s', priority=%d, forPreload=%u", url.string().latin1().data(), charset.latin1().data(), priority, forPreload); // If only the fragment identifiers differ, it is the same resource. url = MemoryCache::removeFragmentIdentifierIfNeeded(url); if (!url.isValid()) return 0; if (!canRequest(type, url, forPreload)) return 0; if (memoryCache()->disabled()) { DocumentResourceMap::iterator it = m_documentResources.find(url.string()); if (it != m_documentResources.end()) { it->second->setOwningCachedResourceLoader(0); m_documentResources.remove(it); } } // See if we can use an existing resource from the cache. CachedResource* resource = memoryCache()->resourceForURL(url); if (request.url() != url) request.setURL(url); switch (determineRevalidationPolicy(type, forPreload, resource)) { case Load: resource = loadResource(type, request, charset, priority); break; case Reload: memoryCache()->remove(resource); resource = loadResource(type, request, charset, priority); break; case Revalidate: resource = revalidateResource(resource, priority); break; case Use: memoryCache()->resourceAccessed(resource); notifyLoadedFromMemoryCache(resource); break; } if (!resource) return 0; ASSERT(resource->url() == url.string()); m_documentResources.set(resource->url(), resource); return resource; }
CachedResourceHandle<CachedResource> CachedResourceLoader::requestResource(CachedResource::Type type, CachedResourceRequest& request) { KURL url = request.resourceRequest().url(); LOG(ResourceLoading, "CachedResourceLoader::requestResource '%s', charset '%s', priority=%d, forPreload=%u", url.elidedString().latin1().data(), request.charset().latin1().data(), request.priority(), request.forPreload()); // If only the fragment identifiers differ, it is the same resource. url = MemoryCache::removeFragmentIdentifierIfNeeded(url); if (!url.isValid()) return 0; if (!canRequest(type, url, request.forPreload())) return 0; if (Frame* f = frame()) f->loader()->client()->dispatchWillRequestResource(&request); if (memoryCache()->disabled()) { DocumentResourceMap::iterator it = m_documentResources.find(url.string()); if (it != m_documentResources.end()) { it->value->setOwningCachedResourceLoader(0); m_documentResources.remove(it); } } // See if we can use an existing resource from the cache. CachedResourceHandle<CachedResource> resource; #if ENABLE(CACHE_PARTITIONING) if (document()) request.mutableResourceRequest().setCachePartition(document()->topOrigin()->cachePartition()); #endif resource = memoryCache()->resourceForRequest(request.resourceRequest()); const RevalidationPolicy policy = determineRevalidationPolicy(type, request.mutableResourceRequest(), request.forPreload(), resource.get(), request.defer()); switch (policy) { case Reload: memoryCache()->remove(resource.get()); // Fall through case Load: resource = loadResource(type, request, request.charset()); break; case Revalidate: resource = revalidateResource(request, resource.get()); break; case Use: memoryCache()->resourceAccessed(resource.get()); notifyLoadedFromMemoryCache(resource.get()); break; } if (!resource) return 0; if (!request.forPreload() || policy != Use) resource->setLoadPriority(request.priority()); if ((policy != Use || resource->stillNeedsLoad()) && CachedResourceRequest::NoDefer == request.defer()) { resource->load(this, request.options()); // We don't support immediate loads, but we do support immediate failure. if (resource->errorOccurred()) { if (resource->inCache()) memoryCache()->remove(resource.get()); return 0; } } #if PLATFORM(CHROMIUM) // FIXME: Temporarily leave main resource caching disabled for chromium, see https://bugs.webkit.org/show_bug.cgi?id=107962 // Ensure main resources aren't preloaded, and other main resource loads are removed from cache to prevent reuse. if (type == CachedResource::MainResource) { ASSERT(policy != Use); ASSERT(policy != Revalidate); memoryCache()->remove(resource.get()); if (request.forPreload()) return 0; } #endif if (!request.resourceRequest().url().protocolIsData()) m_validatedURLs.add(request.resourceRequest().url()); ASSERT(resource->url() == url.string()); m_documentResources.set(resource->url(), resource); return resource; }