storage/browser/fileapi/sandbox_isolated_origin_database.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 STORAGE_BROWSER_FILEAPI_SANDBOX_ISOLATED_ORIGIN_DATABASE_H_
   6 #define STORAGE_BROWSER_FILEAPI_SANDBOX_ISOLATED_ORIGIN_DATABASE_H_
   7
   8 #include <string>
   9 #include <vector>
  10
  11 #include "storage/browser/fileapi/sandbox_origin_database_interface.h"
  12
  13 namespace storage {
  14
  15 class SandboxOriginDatabase;
  16
  17 // This origin database implementation supports only one origin
  18 // (therefore is expected to run very fast).
  19 class STORAGE_EXPORT_PRIVATE SandboxIsolatedOriginDatabase
  20     : public SandboxOriginDatabaseInterface {
  21  public:
  22   static const base::FilePath::CharType kObsoleteOriginDirectory[];
  23
  24   // Initialize this database for |origin| which makes GetPathForOrigin return
  25   // |origin_directory| (in |file_system_directory|).
  26   SandboxIsolatedOriginDatabase(
  27       const std::string& origin,
  28       const base::FilePath& file_system_directory,
  29       const base::FilePath& origin_directory);
  30   virtual ~SandboxIsolatedOriginDatabase();
  31
  32   // SandboxOriginDatabaseInterface overrides.
  33   virtual bool HasOriginPath(const std::string& origin) OVERRIDE;
  34   virtual bool GetPathForOrigin(const std::string& origin,
  35                                 base::FilePath* directory) OVERRIDE;
  36   virtual bool RemovePathForOrigin(const std::string& origin) OVERRIDE;
  37   virtual bool ListAllOrigins(std::vector<OriginRecord>* origins) OVERRIDE;
  38   virtual void DropDatabase() OVERRIDE;
  39
  40   // TODO(kinuko): Deprecate this after a few release cycles, e.g. around M33.
  41   static void MigrateBackFromObsoleteOriginDatabase(
  42       const std::string& origin,
  43       const base::FilePath& file_system_directory,
  44       SandboxOriginDatabase* origin_database);
  45
  46   const std::string& origin() const { return origin_; }
  47
  48  private:
  49   void MigrateDatabaseIfNeeded();
  50
  51   bool migration_checked_;
  52   const std::string origin_;
  53   const base::FilePath file_system_directory_;
  54   const base::FilePath origin_directory_;
  55
  56   DISALLOW_COPY_AND_ASSIGN(SandboxIsolatedOriginDatabase);
  57 };
  58
  59 }  // namespace storage
  60
  61 #endif  // STORAGE_BROWSER_FILEAPI_SANDBOX_ISOLATED_ORIGIN_DATABASE_H_