chrome/browser/extensions/extension_assets_manager_chromeos.h

   1 // Copyright (c) 2014 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_EXTENSIONS_EXTENSION_ASSETS_MANAGER_CHROMEOS_H_
   6 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_ASSETS_MANAGER_CHROMEOS_H_
   7
   8 #include <map>
   9
  10 #include "chrome/browser/extensions/extension_assets_manager.h"
  11
  12 template <typename T> struct DefaultSingletonTraits;
  13 class PrefRegistrySimple;
  14
  15 namespace base {
  16 class DictionaryValue;
  17 class SequencedTaskRunner;
  18 }
  19
  20 namespace extensions {
  21
  22 // Chrome OS specific implementation of assets manager that shares default apps
  23 // between all users on the machine.
  24 class ExtensionAssetsManagerChromeOS : public ExtensionAssetsManager {
  25  public:
  26   static ExtensionAssetsManagerChromeOS* GetInstance();
  27
  28   // A dictionary that maps shared extension IDs to version/paths/users.
  29   static const char kSharedExtensions[];
  30
  31   // Name of path attribute in shared extensions map.
  32   static const char kSharedExtensionPath[];
  33
  34   // Name of users attribute (list of user emails) in shared extensions map.
  35   static const char kSharedExtensionUsers[];
  36
  37   // Register shared assets related preferences.
  38   static void RegisterPrefs(PrefRegistrySimple* registry);
  39
  40   // Override from ExtensionAssetsManager.
  41   void InstallExtension(const Extension* extension,
  42                         const base::FilePath& unpacked_extension_root,
  43                         const base::FilePath& local_install_dir,
  44                         Profile* profile,
  45                         InstallExtensionCallback callback) override;
  46   void UninstallExtension(const std::string& id,
  47                           Profile* profile,
  48                           const base::FilePath& local_install_dir,
  49                           const base::FilePath& extension_root) override;
  50
  51   // Return shared install dir.
  52   static base::FilePath GetSharedInstallDir();
  53
  54   // Return true if |extension| was installed to shared location.
  55   static bool IsSharedInstall(const Extension* extension);
  56
  57   // Cleans up shared extensions list in preferences and returns list of
  58   // extension IDs and version paths that are in use in |live_extension_paths|.
  59   // Files on disk are not removed. Must be called on UI thread.
  60   // Returns |false| in case of errors.
  61   static bool CleanUpSharedExtensions(
  62       std::multimap<std::string, base::FilePath>* live_extension_paths);
  63
  64   static void SetSharedInstallDirForTesting(const base::FilePath& install_dir);
  65
  66  private:
  67   friend struct DefaultSingletonTraits<ExtensionAssetsManagerChromeOS>;
  68
  69   ExtensionAssetsManagerChromeOS();
  70   ~ExtensionAssetsManagerChromeOS() override;
  71
  72   // Should be called on UI thread to get associated file task runner for
  73   // the profile.
  74   static base::SequencedTaskRunner* GetFileTaskRunner(Profile* profile);
  75
  76   // Return |true| if |extension| can be installed in a shared place for all
  77   // users on the device.
  78   static bool CanShareAssets(const Extension* extension,
  79                              const base::FilePath& unpacked_extension_root);
  80
  81   // Called on the UI thread to check if a given version of the |extension|
  82   // already exists at the shared location.
  83   static void CheckSharedExtension(
  84       const std::string& id,
  85       const std::string& version,
  86       const base::FilePath& unpacked_extension_root,
  87       const base::FilePath& local_install_dir,
  88       Profile* profile,
  89       InstallExtensionCallback callback);
  90
  91   // Called on task runner thread to install extension to shared location.
  92   static void InstallSharedExtension(
  93       const std::string& id,
  94       const std::string& version,
  95       const base::FilePath& unpacked_extension_root);
  96
  97   // Called on UI thread to process shared install result.
  98   static void InstallSharedExtensionDone(
  99       const std::string& id,
 100       const std::string& version,
 101       const base::FilePath& shared_version_dir);
 102
 103   // Called on task runner thread to install the extension to local dir call
 104   // callback with the result.
 105   static void InstallLocalExtension(
 106       const std::string& id,
 107       const std::string& version,
 108       const base::FilePath& unpacked_extension_root,
 109       const base::FilePath& local_install_dir,
 110       InstallExtensionCallback callback);
 111
 112   // Called on UI thread to mark that shared version is not used.
 113   static void MarkSharedExtensionUnused(const std::string& id,
 114                                         Profile* profile);
 115
 116   // Called on task runner thread to remove shared version.
 117   static void DeleteSharedVersion(const base::FilePath& shared_version_dir);
 118
 119   // Clean shared extension with given |id|.
 120   static bool CleanUpExtension(
 121       const std::string& id,
 122       base::DictionaryValue* extension_info,
 123       std::multimap<std::string, base::FilePath>* live_extension_paths);
 124
 125   DISALLOW_COPY_AND_ASSIGN(ExtensionAssetsManagerChromeOS);
 126 };
 127
 128 }  // namespace extensions
 129
 130 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_ASSETS_MANAGER_CHROMEOS_H_