text: /*
   * Copyright (C) 2013 Google Inc. All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are
   * met:
   *
   *     * Redistributions of source code must retain the above copyright
   * notice, this list of conditions and the following disclaimer.
   *     * Redistributions in binary form must reproduce the above
   * copyright notice, this list of conditions and the following disclaimer
   * in the documentation and/or other materials provided with the
   * distribution.
   *     * Neither the name of Google Inc. nor the names of its
   * contributors may be used to endorse or promote products derived from
   * this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  #ifndef FrameFetchContext_h
  #define FrameFetchContext_h
  
  #include "core/CoreExport.h"
  #include "core/fetch/FetchContext.h"
  #include "core/fetch/ResourceFetcher.h"
  #include "core/frame/csp/ContentSecurityPolicy.h"
  #include "platform/heap/Handle.h"
  #include "platform/network/ResourceRequest.h"
  #include "wtf/PassOwnPtr.h"
  
  namespace blink {
  
  class Document;
  class DocumentLoader;
  class LocalFrame;
  class ResourceError;
  class ResourceLoader;
  class ResourceResponse;
  class ResourceRequest;
  
  class CORE_EXPORT FrameFetchContext final : public FetchContext {
  public:
      static ResourceFetcher* createContextAndFetcher(DocumentLoader* loader)
      {
          return ResourceFetcher::create(new FrameFetchContext(loader));
      }
  
      static void provideDocumentToContext(FetchContext& context, Document* document)
      {
          ASSERT(document);
          RELEASE_ASSERT(context.isLiveContext());
          static_cast<FrameFetchContext&>(context).m_document = document;
      }
  
      ~FrameFetchContext();
  
      bool isLiveContext() { return true; }
  
      void addAdditionalRequestHeaders(ResourceRequest&, FetchResourceType) override;
      void setFirstPartyForCookies(ResourceRequest&) override;
      CachePolicy cachePolicy() const override;
      ResourceRequestCachePolicy resourceRequestCachePolicy(const ResourceRequest&, Resource::Type) const override;
      void dispatchDidChangeResourcePriority(unsigned long identifier, ResourceLoadPriority, int intraPriorityValue) override;
      void dispatchWillSendRequest(unsigned long identifier, ResourceRequest&, const ResourceResponse& redirectResponse, const FetchInitiatorInfo& = FetchInitiatorInfo()) override;
      void dispatchDidLoadResourceFromMemoryCache(const Resource*) override;
      void dispatchDidReceiveResponse(unsigned long identifier, const ResourceResponse&, ResourceLoader* = 0) override;
      void dispatchDidReceiveData(unsigned long identifier, const char* data, int dataLength, int encodedDataLength) override;
      void dispatchDidDownloadData(unsigned long identifier, int dataLength, int encodedDataLength)  override;
      void dispatchDidFinishLoading(unsigned long identifier, double finishTime, int64_t encodedDataLength) override;
      void dispatchDidFail(unsigned long identifier, const ResourceError&, bool isInternalRequest) override;
  
      bool shouldLoadNewResource(Resource::Type) const override;
      void willStartLoadingResource(ResourceRequest&) override;
      void didLoadResource(Resource*) override;
  
      void addResourceTiming(const ResourceTimingInfo&) override;
      bool allowImage(bool imagesEnabled, const KURL&) const override;
      bool canRequest(Resource::Type, const ResourceRequest&, const KURL&, const ResourceLoaderOptions&, bool forPreload, FetchRequest::OriginRestriction) const override;
      bool allowResponse(Resource::Type, const ResourceRequest&, const KURL&, const ResourceLoaderOptions&) const override;
  
      bool isControlledByServiceWorker() const override;
      int64_t serviceWorkerID() const override;
  
      bool isMainFrame() const override;
      bool defersLoading() const override;
      bool isLoadComplete() const override;
      bool pageDismissalEventBeingDispatched() const override;
      bool updateTimingInfoForIFrameNavigation(ResourceTimingInfo*) override;
      void sendImagePing(const KURL&) override;
      void addConsoleMessage(const String&) const override;
      SecurityOrigin* securityOrigin() const override;
      void upgradeInsecureRequest(FetchRequest&) override;
      void addClientHintsIfNecessary(FetchRequest&) override;
      void addCSPHeaderIfNecessary(Resource::Type, FetchRequest&) override;
  
      ResourceLoadPriority modifyPriorityForExperiments(ResourceLoadPriority, Resource::Type, const FetchRequest&, ResourcePriority::VisibilityStatus) override;
  
      void countClientHintsDPR() override;
      void countClientHintsResourceWidth() override;
      void countClientHintsViewportWidth() override;
  
      WebTaskRunner* loadingTaskRunner() const override;
  
      DECLARE_VIRTUAL_TRACE();
  
  private:
      explicit FrameFetchContext(DocumentLoader*);
      inline DocumentLoader* ensureLoaderForNotifications() const;
  
      LocalFrame* frame() const; // Can be null
      void printAccessDeniedMessage(const KURL&) const;
      ResourceRequestBlockedReason canRequestInternal(Resource::Type, const ResourceRequest&, const KURL&, const ResourceLoaderOptions&, bool forPreload, FetchRequest::OriginRestriction, ContentSecurityPolicy::RedirectStatus) const;
  
      // FIXME: Oilpan: Ideally this should just be a traced Member but that will
      // currently leak because ComputedStyle and its data are not on the heap.
      // See crbug.com/383860 for details.
      RawPtrWillBeWeakMember<Document> m_document;
      RawPtrWillBeMember<DocumentLoader> m_documentLoader;
  
      bool m_imageFetched : 1;
  };
  
  }
  
  #endif
  