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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 // This class responds to requests from renderers for the list of plugins, and | |
| 6 // also a proxy object for plugin instances. | |
| 7 | |
| 8 #ifndef CHROME_BROWSER_PLUGIN_SERVICE_H_ | 5 #ifndef CHROME_BROWSER_PLUGIN_SERVICE_H_ |
| 9 #define CHROME_BROWSER_PLUGIN_SERVICE_H_ | 6 #define CHROME_BROWSER_PLUGIN_SERVICE_H_ |
| 10 #pragma once | 7 #pragma once |
| 11 | 8 |
| 12 #include <string> | 9 // TODO(jam): remove this file when all files have been converted. |
| 13 | 10 #include "content/browser/plugin_service.h" |
| 14 #include "base/basictypes.h" | |
| 15 #include "base/file_path.h" | |
| 16 #include "base/hash_tables.h" | |
| 17 #include "base/scoped_vector.h" | |
| 18 #include "base/singleton.h" | |
| 19 #include "base/synchronization/lock.h" | |
| 20 #include "base/synchronization/waitable_event_watcher.h" | |
| 21 #include "build/build_config.h" | |
| 22 #include "chrome/browser/plugin_process_host.h" | |
| 23 #include "chrome/browser/ppapi_plugin_process_host.h" | |
| 24 #include "chrome/common/notification_observer.h" | |
| 25 #include "chrome/common/notification_registrar.h" | |
| 26 #include "googleurl/src/gurl.h" | |
| 27 #include "ipc/ipc_channel_handle.h" | |
| 28 #include "webkit/plugins/npapi/webplugininfo.h" | |
| 29 | |
| 30 #if defined(OS_WIN) | |
| 31 #include "base/scoped_ptr.h" | |
| 32 #include "base/win/registry.h" | |
| 33 #endif | |
| 34 | |
| 35 #if defined(OS_LINUX) | |
| 36 #include "chrome/browser/file_path_watcher/file_path_watcher.h" | |
| 37 #endif | |
| 38 | |
| 39 #if defined(OS_CHROMEOS) | |
| 40 namespace chromeos { | |
| 41 class PluginSelectionPolicy; | |
| 42 } | |
| 43 #endif | |
| 44 | |
| 45 namespace IPC { | |
| 46 class Message; | |
| 47 } | |
| 48 | |
| 49 class MessageLoop; | |
| 50 struct PepperPluginInfo; | |
| 51 class PluginDirWatcherDelegate; | |
| 52 class Profile; | |
| 53 class ResourceDispatcherHost; | |
| 54 | |
| 55 namespace net { | |
| 56 class URLRequestContext; | |
| 57 } // namespace net | |
| 58 | |
| 59 // This must be created on the main thread but it's only called on the IO/file | |
| 60 // thread. | |
| 61 class PluginService | |
| 62 : public base::WaitableEventWatcher::Delegate, | |
| 63 public NotificationObserver { | |
| 64 public: | |
| 65 struct OverriddenPlugin { | |
| 66 int render_process_id; | |
| 67 int render_view_id; | |
| 68 GURL url; | |
| 69 webkit::npapi::WebPluginInfo plugin; | |
| 70 }; | |
| 71 | |
| 72 // Initializes the global instance; should be called on startup from the main | |
| 73 // thread. | |
| 74 static void InitGlobalInstance(Profile* profile); | |
| 75 | |
| 76 // Returns the PluginService singleton. | |
| 77 static PluginService* GetInstance(); | |
| 78 | |
| 79 // Load all the plugins that should be loaded for the lifetime of the browser | |
| 80 // (ie, with the LoadOnStartup flag set). | |
| 81 void LoadChromePlugins(ResourceDispatcherHost* resource_dispatcher_host); | |
| 82 | |
| 83 // Sets/gets the data directory that Chrome plugins should use to store | |
| 84 // persistent data. | |
| 85 void SetChromePluginDataDir(const FilePath& data_dir); | |
| 86 const FilePath& GetChromePluginDataDir(); | |
| 87 | |
| 88 // Gets the browser's UI locale. | |
| 89 const std::string& GetUILocale(); | |
| 90 | |
| 91 // Returns the plugin process host corresponding to the plugin process that | |
| 92 // has been started by this service. Returns NULL if no process has been | |
| 93 // started. | |
| 94 PluginProcessHost* FindNpapiPluginProcess(const FilePath& plugin_path); | |
| 95 PpapiPluginProcessHost* FindPpapiPluginProcess(const FilePath& plugin_path); | |
| 96 | |
| 97 // Returns the plugin process host corresponding to the plugin process that | |
| 98 // has been started by this service. This will start a process to host the | |
| 99 // 'plugin_path' if needed. If the process fails to start, the return value | |
| 100 // is NULL. Must be called on the IO thread. | |
| 101 PluginProcessHost* FindOrStartNpapiPluginProcess( | |
| 102 const FilePath& plugin_path); | |
| 103 PpapiPluginProcessHost* FindOrStartPpapiPluginProcess( | |
| 104 const FilePath& plugin_path); | |
| 105 | |
| 106 // Opens a channel to a plugin process for the given mime type, starting | |
| 107 // a new plugin process if necessary. This must be called on the IO thread | |
| 108 // or else a deadlock can occur. | |
| 109 void OpenChannelToNpapiPlugin(int render_process_id, | |
| 110 int render_view_id, | |
| 111 const GURL& url, | |
| 112 const std::string& mime_type, | |
| 113 PluginProcessHost::Client* client); | |
| 114 void OpenChannelToPpapiPlugin(const FilePath& path, | |
| 115 PpapiPluginProcessHost::Client* client); | |
| 116 | |
| 117 // Gets the first allowed plugin in the list of plugins that matches | |
| 118 // the given url and mime type. Must be called on the FILE thread. | |
| 119 bool GetFirstAllowedPluginInfo(int render_process_id, | |
| 120 int render_view_id, | |
| 121 const GURL& url, | |
| 122 const std::string& mime_type, | |
| 123 webkit::npapi::WebPluginInfo* info, | |
| 124 std::string* actual_mime_type); | |
| 125 | |
| 126 // Returns true if the given plugin is allowed to be used by a page with | |
| 127 // the given URL. | |
| 128 bool PrivatePluginAllowedForURL(const FilePath& plugin_path, const GURL& url); | |
| 129 | |
| 130 // Safe to be called from any thread. | |
| 131 void OverridePluginForTab(OverriddenPlugin plugin); | |
| 132 | |
| 133 // The UI thread's message loop | |
| 134 MessageLoop* main_message_loop() { return main_message_loop_; } | |
| 135 | |
| 136 ResourceDispatcherHost* resource_dispatcher_host() const { | |
| 137 return resource_dispatcher_host_; | |
| 138 } | |
| 139 | |
| 140 static void EnableChromePlugins(bool enable); | |
| 141 | |
| 142 private: | |
| 143 friend struct DefaultSingletonTraits<PluginService>; | |
| 144 | |
| 145 // Creates the PluginService object, but doesn't actually build the plugin | |
| 146 // list yet. It's generated lazily. | |
| 147 PluginService(); | |
| 148 ~PluginService(); | |
| 149 | |
| 150 // base::WaitableEventWatcher::Delegate implementation. | |
| 151 virtual void OnWaitableEventSignaled(base::WaitableEvent* waitable_event); | |
| 152 | |
| 153 // NotificationObserver implementation | |
| 154 virtual void Observe(NotificationType type, const NotificationSource& source, | |
| 155 const NotificationDetails& details); | |
| 156 | |
| 157 void RegisterPepperPlugins(); | |
| 158 | |
| 159 // Helper so we can do the plugin lookup on the FILE thread. | |
| 160 void GetAllowedPluginForOpenChannelToPlugin( | |
| 161 int render_process_id, | |
| 162 int render_view_id, | |
| 163 const GURL& url, | |
| 164 const std::string& mime_type, | |
| 165 PluginProcessHost::Client* client); | |
| 166 | |
| 167 // Helper so we can finish opening the channel after looking up the | |
| 168 // plugin. | |
| 169 void FinishOpenChannelToPlugin( | |
| 170 const FilePath& plugin_path, | |
| 171 PluginProcessHost::Client* client); | |
| 172 | |
| 173 #if defined(OS_LINUX) | |
| 174 // Registers a new FilePathWatcher for a given path. | |
| 175 static void RegisterFilePathWatcher( | |
| 176 FilePathWatcher* watcher, | |
| 177 const FilePath& path, | |
| 178 FilePathWatcher::Delegate* delegate); | |
| 179 #endif | |
| 180 | |
| 181 // The main thread's message loop. | |
| 182 MessageLoop* main_message_loop_; | |
| 183 | |
| 184 // The IO thread's resource dispatcher host. | |
| 185 ResourceDispatcherHost* resource_dispatcher_host_; | |
| 186 | |
| 187 // The data directory that Chrome plugins should use to store persistent data. | |
| 188 FilePath chrome_plugin_data_dir_; | |
| 189 | |
| 190 // The browser's UI locale. | |
| 191 const std::string ui_locale_; | |
| 192 | |
| 193 // Map of plugin paths to the origin they are restricted to. Used for | |
| 194 // extension-only plugins. | |
| 195 typedef base::hash_map<FilePath, GURL> PrivatePluginMap; | |
| 196 PrivatePluginMap private_plugins_; | |
| 197 | |
| 198 NotificationRegistrar registrar_; | |
| 199 | |
| 200 #if defined(OS_CHROMEOS) | |
| 201 scoped_refptr<chromeos::PluginSelectionPolicy> plugin_selection_policy_; | |
| 202 #endif | |
| 203 | |
| 204 #if defined(OS_WIN) | |
| 205 // Registry keys for getting notifications when new plugins are installed. | |
| 206 base::win::RegKey hkcu_key_; | |
| 207 base::win::RegKey hklm_key_; | |
| 208 scoped_ptr<base::WaitableEvent> hkcu_event_; | |
| 209 scoped_ptr<base::WaitableEvent> hklm_event_; | |
| 210 base::WaitableEventWatcher hkcu_watcher_; | |
| 211 base::WaitableEventWatcher hklm_watcher_; | |
| 212 #endif | |
| 213 | |
| 214 #if defined(OS_LINUX) | |
| 215 ScopedVector<FilePathWatcher> file_watchers_; | |
| 216 scoped_refptr<PluginDirWatcherDelegate> file_watcher_delegate_; | |
| 217 #endif | |
| 218 | |
| 219 std::vector<PepperPluginInfo> ppapi_plugins_; | |
| 220 | |
| 221 // Set to true if chrome plugins are enabled. Defaults to true. | |
| 222 static bool enable_chrome_plugins_; | |
| 223 | |
| 224 std::vector<OverriddenPlugin> overridden_plugins_; | |
| 225 base::Lock overridden_plugins_lock_; | |
| 226 | |
| 227 DISALLOW_COPY_AND_ASSIGN(PluginService); | |
| 228 }; | |
| 229 | |
| 230 DISABLE_RUNNABLE_METHOD_REFCOUNT(PluginService); | |
| 231 | |
| 232 #endif // CHROME_BROWSER_PLUGIN_SERVICE_H_ | 11 #endif // CHROME_BROWSER_PLUGIN_SERVICE_H_ |
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