extensions/browser/updater/update_service.h

   1 // Copyright 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 EXTENSIONS_BROWSER_UPDATER_UPDATE_SERVICE_H_
   6 #define EXTENSIONS_BROWSER_UPDATER_UPDATE_SERVICE_H_
   7
   8 #include <string>
   9
  10 #include "base/callback.h"
  11 #include "base/macros.h"
  12 #include "base/memory/scoped_ptr.h"
  13 #include "components/keyed_service/core/keyed_service.h"
  14 #include "extensions/browser/updater/extension_downloader_delegate.h"
  15
  16 namespace content {
  17 class BrowserContext;
  18 }
  19
  20 namespace extensions {
  21
  22 class ExtensionDownloader;
  23 class UpdateServiceFactory;
  24 class UpdateServiceTest;
  25
  26 // This service manages the download, update, and installation of extensions.
  27 // It is currently only used by app_shell, but should eventually replace
  28 // ExtensionUpdater in Chrome.
  29 // TODO(rockot): Replace ExtensionUpdater with this service.
  30 class UpdateService : public KeyedService, public ExtensionDownloaderDelegate {
  31  public:
  32   static UpdateService* Get(content::BrowserContext* context);
  33
  34   // TODO(rockot): Remove this. It's a placeholder for a real service interface.
  35   // Downloads and (TODO) installs a CRX within the current browser context.
  36   void DownloadAndInstall(const std::string& id,
  37                           const base::Callback<void(bool)>& callback);
  38
  39  private:
  40   friend class UpdateServiceFactory;
  41   friend class UpdateServiceTest;
  42
  43   explicit UpdateService(content::BrowserContext* context);
  44   ~UpdateService() override;
  45
  46   // ExtensionDownloaderDelegate:
  47   void OnExtensionDownloadFailed(const std::string& id,
  48                                  Error error,
  49                                  const PingResult& ping,
  50                                  const std::set<int>& request_ids) override;
  51   void OnExtensionDownloadFinished(const CRXFileInfo& file,
  52                                    bool file_ownership_passed,
  53                                    const GURL& download_url,
  54                                    const std::string& version,
  55                                    const PingResult& ping,
  56                                    const std::set<int>& request_id,
  57                                    const InstallCallback& callback) override;
  58   bool IsExtensionPending(const std::string& id) override;
  59   bool GetExtensionExistingVersion(const std::string& id,
  60                                    std::string* version) override;
  61
  62   content::BrowserContext* browser_context_;
  63   scoped_ptr<ExtensionDownloader> downloader_;
  64   base::Callback<void(bool)> download_callback_;
  65
  66   DISALLOW_COPY_AND_ASSIGN(UpdateService);
  67 };
  68
  69 }  // namespace extensions
  70
  71 #endif  // EXTENSIONS_BROWSER_UPDATER_UPDATE_SERVICE_H_