chrome/browser/chromeos/fileapi/file_access_permissions.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_CHROMEOS_FILEAPI_FILE_ACCESS_PERMISSIONS_H_
   6 #define CHROME_BROWSER_CHROMEOS_FILEAPI_FILE_ACCESS_PERMISSIONS_H_
   7
   8 #include <map>
   9 #include <set>
  10 #include <string>
  11
  12 #include "base/basictypes.h"
  13 #include "base/files/file_path.h"
  14 #include "base/synchronization/lock.h"
  15
  16 namespace chromeos {
  17
  18 // In a thread safe manner maintains the set of paths allowed to access for
  19 // each extension.
  20 class FileAccessPermissions {
  21  public:
  22   FileAccessPermissions();
  23   virtual ~FileAccessPermissions();
  24
  25   // Grants |extension_id| access to |path|.
  26   void GrantAccessPermission(const std::string& extension_id,
  27                              const base::FilePath& path);
  28   // Checks id |extension_id| has permission to access to |path|.
  29   bool HasAccessPermission(const std::string& extension_id,
  30                            const base::FilePath& path) const;
  31   // Revokes all file permissions for |extension_id|.
  32   void RevokePermissions(const std::string& extension_id);
  33
  34  private:
  35   typedef std::set<base::FilePath> PathSet;
  36   typedef std::map<std::string, PathSet> PathAccessMap;
  37
  38   mutable base::Lock lock_;  // Synchronize all access to path_map_.
  39   PathAccessMap path_map_;
  40
  41   DISALLOW_COPY_AND_ASSIGN(FileAccessPermissions);
  42 };
  43
  44 }  // namespace chromeos
  45
  46 #endif  // CHROME_BROWSER_CHROMEOS_FILEAPI_FILE_ACCESS_PERMISSIONS_H_