| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CHROME_BROWSER_EXTENSIONS_UPDATER_EXTENSION_CACHE_IMPL_H_ |
| #define CHROME_BROWSER_EXTENSIONS_UPDATER_EXTENSION_CACHE_IMPL_H_ |
| |
| #include <memory> |
| #include <set> |
| #include <string> |
| #include <vector> |
| |
| #include "base/callback_forward.h" |
| #include "base/files/file_path.h" |
| #include "base/macros.h" |
| #include "base/memory/weak_ptr.h" |
| #include "content/public/browser/notification_observer.h" |
| #include "content/public/browser/notification_registrar.h" |
| #include "extensions/browser/updater/extension_cache.h" |
| |
| namespace base { |
| template <typename T> struct DefaultSingletonTraits; |
| } |
| |
| namespace extensions { |
| |
| class ExtensionCacheDelegate; |
| class LocalExtensionCache; |
| |
| // Singleton call that caches extensions .crx files to share them between |
| // multiple users and profiles on the machine. |
| class ExtensionCacheImpl : public ExtensionCache, |
| public content::NotificationObserver { |
| public: |
| explicit ExtensionCacheImpl(std::unique_ptr<ExtensionCacheDelegate> delegate); |
| ~ExtensionCacheImpl() override; |
| |
| // Implementation of ExtensionCache. |
| void Start(const base::Closure& callback) override; |
| void Shutdown(const base::Closure& callback) override; |
| void AllowCaching(const std::string& id) override; |
| bool GetExtension(const std::string& id, |
| const std::string& expected_hash, |
| base::FilePath* file_path, |
| std::string* version) override; |
| void PutExtension(const std::string& id, |
| const std::string& expected_hash, |
| const base::FilePath& file_path, |
| const std::string& version, |
| const PutExtensionCallback& callback) override; |
| |
| // Implementation of content::NotificationObserver: |
| void Observe(int type, |
| const content::NotificationSource& source, |
| const content::NotificationDetails& details) override; |
| |
| private: |
| // Callback that is called when local cache is ready. |
| void OnCacheInitialized(); |
| |
| // Check if this extension is allowed to be cached. |
| bool CachingAllowed(const std::string& id); |
| |
| // Cache implementation that uses local cache dir. |
| std::unique_ptr<LocalExtensionCache> cache_; |
| |
| // Set of extensions that can be cached. |
| std::set<std::string> allowed_extensions_; |
| |
| // List of callbacks that should be called when the cache is ready. |
| std::vector<base::Closure> init_callbacks_; |
| |
| // Observes failures to install CRX files. |
| content::NotificationRegistrar notification_registrar_; |
| |
| // Weak factory for callbacks. |
| base::WeakPtrFactory<ExtensionCacheImpl> weak_ptr_factory_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ExtensionCacheImpl); |
| }; |
| |
| } // namespace extensions |
| |
| #endif // CHROME_BROWSER_EXTENSIONS_UPDATER_EXTENSION_CACHE_IMPL_H_ |