third_party/blink/renderer/core/loader/resource/script_resource.h

/*
    Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de)
    Copyright (C) 2001 Dirk Mueller <mueller@kde.org>
    Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
    Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.

    This class provides all functionality needed for loading images, style
    sheets and html pages from the web. It has a memory cache for these objects.
*/

#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_LOADER_RESOURCE_SCRIPT_RESOURCE_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_LOADER_RESOURCE_SCRIPT_RESOURCE_H_

#include <memory>

#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/loader/resource/text_resource.h"
#include "third_party/blink/renderer/platform/bindings/parkable_string.h"
#include "third_party/blink/renderer/platform/loader/fetch/access_control_status.h"
#include "third_party/blink/renderer/platform/loader/fetch/integrity_metadata.h"
#include "third_party/blink/renderer/platform/loader/fetch/resource_client.h"
#include "third_party/blink/renderer/platform/loader/fetch/resource_loader_options.h"
#include "third_party/blink/renderer/platform/loader/fetch/text_resource_decoder_options.h"

namespace blink {

class FetchParameters;
class KURL;
class ResourceFetcher;

class CORE_EXPORT ScriptResource final : public TextResource {
 public:
  static ScriptResource* Fetch(FetchParameters&,
                               ResourceFetcher*,
                               ResourceClient*);

  // Public for testing
  static ScriptResource* CreateForTest(const KURL& url,
                                       const WTF::TextEncoding& encoding) {
    ResourceRequest request(url);
    request.SetFetchCredentialsMode(
        network::mojom::FetchCredentialsMode::kOmit);
    ResourceLoaderOptions options;
    TextResourceDecoderOptions decoder_options(
        TextResourceDecoderOptions::kPlainTextContent, encoding);
    return new ScriptResource(request, options, decoder_options);
  }

  ~ScriptResource() override;

  void OnMemoryDump(WebMemoryDumpLevelOfDetail,
                    WebProcessMemoryDump*) const override;

  void DestroyDecodedDataForFailedRevalidation() override;

  void SetSerializedCachedMetadata(const char*, size_t) override;

  const ParkableString& SourceText();

  AccessControlStatus CalculateAccessControlStatus() const;

  SingleCachedMetadataHandler* CacheHandler();

 protected:
  CachedMetadataHandler* CreateCachedMetadataHandler(
      std::unique_ptr<CachedMetadataSender> send_callback) override;

 private:
  class ScriptResourceFactory : public ResourceFactory {
   public:
    ScriptResourceFactory()
        : ResourceFactory(ResourceType::kScript,
                          TextResourceDecoderOptions::kPlainTextContent) {}

    Resource* Create(
        const ResourceRequest& request,
        const ResourceLoaderOptions& options,
        const TextResourceDecoderOptions& decoder_options) const override {
      return new ScriptResource(request, options, decoder_options);
    }
  };

  ScriptResource(const ResourceRequest&,
                 const ResourceLoaderOptions&,
                 const TextResourceDecoderOptions&);

  bool CanUseCacheValidator() const override;

  ParkableString source_text_;
};

DEFINE_RESOURCE_TYPE_CASTS(Script);

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_CORE_LOADER_RESOURCE_SCRIPT_RESOURCE_H_