webkit/browser/fileapi/sandbox_prioritized_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 WEBKIT_BROWSER_FILEAPI_SANDBOX_PRIORITIZED_ORIGIN_DATABASE_H_
   6 #define WEBKIT_BROWSER_FILEAPI_SANDBOX_PRIORITIZED_ORIGIN_DATABASE_H_
   7
   8 #include <string>
   9 #include <vector>
  10
  11 #include "base/memory/scoped_ptr.h"
  12 #include "webkit/browser/fileapi/sandbox_origin_database_interface.h"
  13
  14 namespace fileapi {
  15
  16 class ObfuscatedFileUtil;
  17 class SandboxIsolatedOriginDatabase;
  18 class SandboxOriginDatabase;
  19
  20 class WEBKIT_STORAGE_BROWSER_EXPORT_PRIVATE SandboxPrioritizedOriginDatabase
  21     : public SandboxOriginDatabaseInterface {
  22  public:
  23   explicit SandboxPrioritizedOriginDatabase(
  24       const base::FilePath& file_system_directory);
  25   virtual ~SandboxPrioritizedOriginDatabase();
  26
  27   // Sets |origin| as primary origin in this database (e.g. may
  28   // allow faster access).
  29   // Returns false if this database already has a primary origin
  30   // which is different from |origin|.
  31   bool InitializePrimaryOrigin(const std::string& origin);
  32   std::string GetPrimaryOrigin();
  33
  34   // SandboxOriginDatabaseInterface overrides.
  35   virtual bool HasOriginPath(const std::string& origin) OVERRIDE;
  36   virtual bool GetPathForOrigin(const std::string& origin,
  37                                 base::FilePath* directory) OVERRIDE;
  38   virtual bool RemovePathForOrigin(const std::string& origin) OVERRIDE;
  39   virtual bool ListAllOrigins(std::vector<OriginRecord>* origins) OVERRIDE;
  40   virtual void DropDatabase() OVERRIDE;
  41
  42   const base::FilePath& primary_origin_file() const {
  43     return primary_origin_file_;
  44   }
  45
  46  private:
  47   bool MaybeLoadPrimaryOrigin();
  48   bool ResetPrimaryOrigin(const std::string& origin);
  49   void MaybeMigrateDatabase(const std::string& origin);
  50   void MaybeInitializeDatabases(bool create);
  51   void MaybeInitializeNonPrimaryDatabase(bool create);
  52
  53   // For migration.
  54   friend class ObfuscatedFileUtil;
  55   SandboxOriginDatabase* GetSandboxOriginDatabase();
  56
  57   const base::FilePath file_system_directory_;
  58   const base::FilePath primary_origin_file_;
  59   scoped_ptr<SandboxOriginDatabase> origin_database_;
  60   scoped_ptr<SandboxIsolatedOriginDatabase> primary_origin_database_;
  61
  62   DISALLOW_COPY_AND_ASSIGN(SandboxPrioritizedOriginDatabase);
  63 };
  64
  65 }  // namespace fileapi
  66
  67 #endif  // WEBKIT_BROWSER_FILEAPI_SANDBOX_PRIORITIZED_ORIGIN_DATABASE_H_