chrome/browser/ui/webui/extensions/extension_settings_handler.h

   1 // Copyright (c) 2012 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_UI_WEBUI_EXTENSIONS_EXTENSION_SETTINGS_HANDLER_H_
   6 #define CHROME_BROWSER_UI_WEBUI_EXTENSIONS_EXTENSION_SETTINGS_HANDLER_H_
   7
   8 #include <set>
   9 #include <string>
  10 #include <vector>
  11
  12 #include "base/memory/scoped_ptr.h"
  13 #include "base/prefs/pref_change_registrar.h"
  14 #include "base/scoped_observer.h"
  15 #include "chrome/browser/extensions/error_console/error_console.h"
  16 #include "chrome/browser/extensions/extension_install_prompt.h"
  17 #include "chrome/browser/extensions/extension_install_ui.h"
  18 #include "chrome/browser/extensions/extension_uninstall_dialog.h"
  19 #include "chrome/browser/extensions/extension_warning_service.h"
  20 #include "chrome/browser/extensions/requirements_checker.h"
  21 #include "content/public/browser/navigation_controller.h"
  22 #include "content/public/browser/notification_observer.h"
  23 #include "content/public/browser/notification_registrar.h"
  24 #include "content/public/browser/web_contents_observer.h"
  25 #include "content/public/browser/web_ui_message_handler.h"
  26 #include "ui/shell_dialogs/select_file_dialog.h"
  27 #include "url/gurl.h"
  28
  29 class ExtensionService;
  30
  31 namespace base {
  32 class DictionaryValue;
  33 class FilePath;
  34 class ListValue;
  35 }
  36
  37 namespace content {
  38 class WebUIDataSource;
  39 }
  40
  41 namespace user_prefs {
  42 class PrefRegistrySyncable;
  43 }
  44
  45 namespace extensions {
  46 class Extension;
  47 class ManagementPolicy;
  48
  49 // Information about a page running in an extension, for example a popup bubble,
  50 // a background page, or a tab contents.
  51 struct ExtensionPage {
  52   ExtensionPage(const GURL& url,
  53                 int render_process_id,
  54                 int render_view_id,
  55                 bool incognito,
  56                 bool generated_background_page);
  57   GURL url;
  58   int render_process_id;
  59   int render_view_id;
  60   bool incognito;
  61   bool generated_background_page;
  62 };
  63
  64 // Extension Settings UI handler.
  65 class ExtensionSettingsHandler
  66     : public content::WebUIMessageHandler,
  67       public content::NotificationObserver,
  68       public content::WebContentsObserver,
  69       public ui::SelectFileDialog::Listener,
  70       public ErrorConsole::Observer,
  71       public ExtensionInstallPrompt::Delegate,
  72       public ExtensionUninstallDialog::Delegate,
  73       public ExtensionWarningService::Observer,
  74       public base::SupportsWeakPtr<ExtensionSettingsHandler> {
  75  public:
  76   ExtensionSettingsHandler();
  77   virtual ~ExtensionSettingsHandler();
  78
  79   static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
  80
  81   // Extension Detail JSON Struct for page. |pages| is injected for unit
  82   // testing.
  83   // Note: |warning_service| can be NULL in unit tests.
  84   base::DictionaryValue* CreateExtensionDetailValue(
  85       const Extension* extension,
  86       const std::vector<ExtensionPage>& pages,
  87       const ExtensionWarningService* warning_service);
  88
  89   void GetLocalizedValues(content::WebUIDataSource* source);
  90
  91  private:
  92   friend class ExtensionUITest;
  93   friend class BrokerDelegate;
  94
  95   // content::WebContentsObserver implementation.
  96   virtual void RenderViewDeleted(
  97       content::RenderViewHost* render_view_host) OVERRIDE;
  98   virtual void DidStartNavigationToPendingEntry(
  99       const GURL& url,
 100       content::NavigationController::ReloadType reload_type) OVERRIDE;
 101
 102   // Allows injection for testing by friend classes.
 103   ExtensionSettingsHandler(ExtensionService* service,
 104                            ManagementPolicy* policy);
 105
 106   // WebUIMessageHandler implementation.
 107   virtual void RegisterMessages() OVERRIDE;
 108
 109   // SelectFileDialog::Listener implementation.
 110   virtual void FileSelected(const base::FilePath& path,
 111                             int index,
 112                             void* params) OVERRIDE;
 113   virtual void MultiFilesSelected(
 114       const std::vector<base::FilePath>& files, void* params) OVERRIDE;
 115   virtual void FileSelectionCanceled(void* params) OVERRIDE;
 116
 117   // ErrorConsole::Observer implementation.
 118   virtual void OnErrorAdded(const ExtensionError* error) OVERRIDE;
 119
 120   // content::NotificationObserver implementation.
 121   virtual void Observe(int type,
 122                        const content::NotificationSource& source,
 123                        const content::NotificationDetails& details) OVERRIDE;
 124
 125   // ExtensionUninstallDialog::Delegate implementation, used for receiving
 126   // notification about uninstall confirmation dialog selections.
 127   virtual void ExtensionUninstallAccepted() OVERRIDE;
 128   virtual void ExtensionUninstallCanceled() OVERRIDE;
 129
 130   // ExtensionWarningService::Observer implementation.
 131   virtual void ExtensionWarningsChanged() OVERRIDE;
 132
 133   // ExtensionInstallPrompt::Delegate implementation.
 134   virtual void InstallUIProceed() OVERRIDE;
 135   virtual void InstallUIAbort(bool user_initiated) OVERRIDE;
 136
 137   // Helper method that reloads all unpacked extensions.
 138   void ReloadUnpackedExtensions();
 139
 140   // Callback for "requestExtensionsData" message.
 141   void HandleRequestExtensionsData(const base::ListValue* args);
 142
 143   // Callback for "toggleDeveloperMode" message.
 144   void HandleToggleDeveloperMode(const base::ListValue* args);
 145
 146   // Callback for "inspect" message.
 147   void HandleInspectMessage(const base::ListValue* args);
 148
 149   // Callback for "launch" message.
 150   void HandleLaunchMessage(const base::ListValue* args);
 151
 152   // Callback for "reload" message.
 153   void HandleReloadMessage(const base::ListValue* args);
 154
 155   // Callback for "enable" message.
 156   void HandleEnableMessage(const base::ListValue* args);
 157
 158   // Callback for "enableIncognito" message.
 159   void HandleEnableIncognitoMessage(const base::ListValue* args);
 160
 161   // Callback for "allowFileAcces" message.
 162   void HandleAllowFileAccessMessage(const base::ListValue* args);
 163
 164   // Callback for "uninstall" message.
 165   void HandleUninstallMessage(const base::ListValue* args);
 166
 167   // Callback for "options" message.
 168   void HandleOptionsMessage(const base::ListValue* args);
 169
 170   // Callback for "permissions" message.
 171   void HandlePermissionsMessage(const base::ListValue* args);
 172
 173   // Callback for "showButton" message.
 174   void HandleShowButtonMessage(const base::ListValue* args);
 175
 176   // Callback for "autoupdate" message.
 177   void HandleAutoUpdateMessage(const base::ListValue* args);
 178
 179   // Callback for "loadUnpackedExtension" message.
 180   void HandleLoadUnpackedExtensionMessage(const base::ListValue* args);
 181
 182   // Utility for calling JavaScript window.alert in the page.
 183   void ShowAlert(const std::string& message);
 184
 185   // Utility for callbacks that get an extension ID as the sole argument.
 186   // Returns NULL if the extension isn't active.
 187   const Extension* GetActiveExtension(const base::ListValue* args);
 188
 189   // Forces a UI update if appropriate after a notification is received.
 190   void MaybeUpdateAfterNotification();
 191
 192   // Register for notifications that we need to reload the page.
 193   void MaybeRegisterForNotifications();
 194
 195   // Helper that lists the current inspectable html pages for an extension.
 196   std::vector<ExtensionPage> GetInspectablePagesForExtension(
 197       const Extension* extension, bool extension_is_enabled);
 198   void GetInspectablePagesForExtensionProcess(
 199       const Extension* extension,
 200       const std::set<content::RenderViewHost*>& views,
 201       std::vector<ExtensionPage>* result);
 202   void GetShellWindowPagesForExtensionProfile(
 203       const Extension* extension,
 204       Profile* profile,
 205       std::vector<ExtensionPage>* result);
 206
 207   // Returns the ExtensionUninstallDialog object for this class, creating it if
 208   // needed.
 209   ExtensionUninstallDialog* GetExtensionUninstallDialog();
 210
 211   // Callback for RequirementsChecker.
 212   void OnRequirementsChecked(std::string extension_id,
 213                              std::vector<std::string> requirement_errors);
 214
 215   // Our model.  Outlives us since it's owned by our containing profile.
 216   ExtensionService* extension_service_;
 217
 218   // A convenience member, filled once the extension_service_ is known.
 219   ManagementPolicy* management_policy_;
 220
 221   // Used to pick the directory when loading an extension.
 222   scoped_refptr<ui::SelectFileDialog> load_extension_dialog_;
 223
 224   // Used to start the |load_extension_dialog_| in the last directory that was
 225   // loaded.
 226   base::FilePath last_unpacked_directory_;
 227
 228   // Used to show confirmation UI for uninstalling extensions in incognito mode.
 229   scoped_ptr<ExtensionUninstallDialog> extension_uninstall_dialog_;
 230
 231   // The id of the extension we are prompting the user about.
 232   std::string extension_id_prompting_;
 233
 234   // If true, we will ignore notifications in ::Observe(). This is needed
 235   // to prevent reloading the page when we were the cause of the
 236   // notification.
 237   bool ignore_notifications_;
 238
 239   // The page may be refreshed in response to a RenderViewHost being destroyed,
 240   // but the iteration over RenderViewHosts will include the host because the
 241   // notification is sent when it is in the process of being deleted (and before
 242   // it is removed from the process). Keep a pointer to it so we can exclude
 243   // it from the active views.
 244   content::RenderViewHost* deleting_rvh_;
 245   // Do the same for a deleting RenderWidgetHost ID and RenderProcessHost ID.
 246   int deleting_rwh_id_;
 247   int deleting_rph_id_;
 248
 249   // We want to register for notifications only after we've responded at least
 250   // once to the page, otherwise we'd be calling JavaScript functions on objects
 251   // that don't exist yet when notifications come in. This variable makes sure
 252   // we do so only once.
 253   bool registered_for_notifications_;
 254
 255   content::NotificationRegistrar registrar_;
 256
 257   PrefChangeRegistrar pref_registrar_;
 258
 259   // This will not be empty when a requirements check is in progress. Doing
 260   // another Check() before the previous one is complete will cause the first
 261   // one to abort.
 262   scoped_ptr<RequirementsChecker> requirements_checker_;
 263
 264   // The UI for showing what permissions the extension has.
 265   scoped_ptr<ExtensionInstallPrompt> prompt_;
 266
 267   ScopedObserver<ExtensionWarningService, ExtensionWarningService::Observer>
 268       warning_service_observer_;
 269
 270   // An observer to listen for when Extension errors are reported.
 271   ScopedObserver<ErrorConsole, ErrorConsole::Observer> error_console_observer_;
 272
 273   // Whether we found any DISABLE_NOT_VERIFIED extensions and want to kick off
 274   // a verification check to try and rescue them.
 275   bool should_do_verification_check_;
 276
 277   DISALLOW_COPY_AND_ASSIGN(ExtensionSettingsHandler);
 278 };
 279
 280 }  // namespace extensions
 281
 282 #endif  // CHROME_BROWSER_UI_WEBUI_EXTENSIONS_EXTENSION_SETTINGS_HANDLER_H_