chrome/browser/media_galleries/fileapi/supported_audio_video_checker.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_MEDIA_GALLERIES_FILEAPI_SUPPORTED_AUDIO_VIDEO_CHECKER_H_
   6 #define CHROME_BROWSER_MEDIA_GALLERIES_FILEAPI_SUPPORTED_AUDIO_VIDEO_CHECKER_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/files/file.h"
  10 #include "base/files/file_path.h"
  11 #include "base/memory/ref_counted.h"
  12 #include "base/memory/weak_ptr.h"
  13 #include "chrome/browser/media_galleries/fileapi/av_scanning_file_validator.h"
  14
  15 class MediaFileValidatorFactory;
  16 class SafeAudioVideoChecker;
  17
  18 // Uses SafeAudioVideoChecker to validate supported audio and video files in
  19 // the utility process and then uses AVScanningFileValidator to ask the OS to
  20 // virus scan them. The entire file is not decoded so a positive result from
  21 // this class does not make the file safe to use in the browser process.
  22 class SupportedAudioVideoChecker : public AVScanningFileValidator {
  23  public:
  24   ~SupportedAudioVideoChecker() override;
  25
  26   static bool SupportsFileType(const base::FilePath& path);
  27
  28   void StartPreWriteValidation(const ResultCallback& result_callback) override;
  29
  30  private:
  31   friend class MediaFileValidatorFactory;
  32
  33   explicit SupportedAudioVideoChecker(const base::FilePath& file);
  34
  35   void OnFileOpen(base::File file);
  36
  37   base::FilePath path_;
  38   storage::CopyOrMoveFileValidator::ResultCallback callback_;
  39   scoped_refptr<SafeAudioVideoChecker> safe_checker_;
  40   base::WeakPtrFactory<SupportedAudioVideoChecker> weak_factory_;
  41
  42   DISALLOW_COPY_AND_ASSIGN(SupportedAudioVideoChecker);
  43 };
  44
  45 #endif  // CHROME_BROWSER_MEDIA_GALLERIES_FILEAPI_SUPPORTED_AUDIO_VIDEO_CHECKER_H_