chrome/browser/extensions/extension_install_prompt.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_EXTENSIONS_EXTENSION_INSTALL_PROMPT_H_
   6 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_INSTALL_PROMPT_H_
   7
   8 #include <string>
   9 #include <vector>
  10
  11 #include "base/callback.h"
  12 #include "base/compiler_specific.h"
  13 #include "base/files/file_path.h"
  14 #include "base/memory/scoped_ptr.h"
  15 #include "base/strings/string16.h"
  16 #include "chrome/browser/extensions/crx_installer_error.h"
  17 #include "chrome/browser/extensions/extension_install_prompt_experiment.h"
  18 #include "extensions/common/url_pattern.h"
  19 #include "google_apis/gaia/oauth2_mint_token_flow.h"
  20 #include "google_apis/gaia/oauth2_token_service.h"
  21 #include "third_party/skia/include/core/SkBitmap.h"
  22 #include "ui/gfx/image/image.h"
  23 #include "ui/gfx/image/image_skia.h"
  24 #include "ui/gfx/native_widget_types.h"
  25
  26 class Browser;
  27 class ExtensionInstallUI;
  28 class InfoBarDelegate;
  29 class Profile;
  30
  31 namespace base {
  32 class DictionaryValue;
  33 class MessageLoop;
  34 }  // namespace base
  35
  36 namespace content {
  37 class PageNavigator;
  38 class WebContents;
  39 }
  40
  41 namespace extensions {
  42 class BundleInstaller;
  43 class Extension;
  44 class ExtensionWebstorePrivateApiTest;
  45 class MockGetAuthTokenFunction;
  46 class PermissionSet;
  47 }  // namespace extensions
  48
  49 // Displays all the UI around extension installation.
  50 class ExtensionInstallPrompt
  51     : public OAuth2MintTokenFlow::Delegate,
  52       public OAuth2TokenService::Consumer,
  53       public base::SupportsWeakPtr<ExtensionInstallPrompt> {
  54  public:
  55   // This enum is associated with Extensions.InstallPrompt_Type UMA histogram.
  56   // Do not modify existing values and add new values only to the end.
  57   enum PromptType {
  58     UNSET_PROMPT_TYPE = -1,
  59     INSTALL_PROMPT = 0,
  60     INLINE_INSTALL_PROMPT,
  61     BUNDLE_INSTALL_PROMPT,
  62     RE_ENABLE_PROMPT,
  63     PERMISSIONS_PROMPT,
  64     EXTERNAL_INSTALL_PROMPT,
  65     POST_INSTALL_PERMISSIONS_PROMPT,
  66     LAUNCH_PROMPT,
  67     NUM_PROMPT_TYPES
  68   };
  69
  70   enum DetailsType {
  71     PERMISSIONS_DETAILS = 0,
  72     OAUTH_DETAILS,
  73     RETAINED_FILES_DETAILS,
  74   };
  75
  76   // Extra information needed to display an installation or uninstallation
  77   // prompt. Gets populated with raw data and exposes getters for formatted
  78   // strings so that the GTK/views/Cocoa install dialogs don't have to repeat
  79   // that logic.
  80   class Prompt {
  81    public:
  82     explicit Prompt(PromptType type);
  83     ~Prompt();
  84
  85     // Sets the permission list for this prompt.
  86     void SetPermissions(const std::vector<base::string16>& permissions);
  87     // Sets the permission list details for this prompt.
  88     void SetPermissionsDetails(const std::vector<base::string16>& details);
  89     void SetIsShowingDetails(DetailsType type,
  90                              size_t index,
  91                              bool is_showing_details);
  92     void SetWebstoreData(const std::string& localized_user_count,
  93                          bool show_user_count,
  94                          double average_rating,
  95                          int rating_count);
  96     void SetOAuthIssueAdvice(const IssueAdviceInfo& issue_advice);
  97     void SetUserNameFromProfile(Profile* profile);
  98
  99     PromptType type() const { return type_; }
 100     void set_type(PromptType type) { type_ = type; }
 101
 102     // Getters for UI element labels.
 103     base::string16 GetDialogTitle() const;
 104     base::string16 GetHeading() const;
 105     int GetDialogButtons() const;
 106     bool HasAcceptButtonLabel() const;
 107     base::string16 GetAcceptButtonLabel() const;
 108     bool HasAbortButtonLabel() const;
 109     base::string16 GetAbortButtonLabel() const;
 110     base::string16 GetPermissionsHeading() const;
 111     base::string16 GetOAuthHeading() const;
 112     base::string16 GetRetainedFilesHeading() const;
 113
 114     bool ShouldShowPermissions() const;
 115     bool ShouldShowExplanationText() const;
 116
 117     // Getters for webstore metadata. Only populated when the type is
 118     // INLINE_INSTALL_PROMPT.
 119
 120     // The star display logic replicates the one used by the webstore (from
 121     // components.ratingutils.setFractionalYellowStars). Callers pass in an
 122     // "appender", which will be repeatedly called back with the star images
 123     // that they append to the star display area.
 124     typedef void(*StarAppender)(const gfx::ImageSkia*, void*);
 125     void AppendRatingStars(StarAppender appender, void* data) const;
 126     base::string16 GetRatingCount() const;
 127     base::string16 GetUserCount() const;
 128     size_t GetPermissionCount() const;
 129     size_t GetPermissionsDetailsCount() const;
 130     base::string16 GetPermission(size_t index) const;
 131     base::string16 GetPermissionsDetails(size_t index) const;
 132     bool GetIsShowingDetails(DetailsType type, size_t index) const;
 133     size_t GetOAuthIssueCount() const;
 134     const IssueAdviceInfoEntry& GetOAuthIssue(size_t index) const;
 135     size_t GetRetainedFileCount() const;
 136     base::string16 GetRetainedFile(size_t index) const;
 137
 138     // Populated for BUNDLE_INSTALL_PROMPT.
 139     const extensions::BundleInstaller* bundle() const { return bundle_; }
 140     void set_bundle(const extensions::BundleInstaller* bundle) {
 141       bundle_ = bundle;
 142     }
 143
 144     // Populated for all other types.
 145     const extensions::Extension* extension() const { return extension_; }
 146     void set_extension(const extensions::Extension* extension) {
 147       extension_ = extension;
 148     }
 149
 150     // May be populated for POST_INSTALL_PERMISSIONS_PROMPT.
 151     void set_retained_files(const std::vector<base::FilePath>& retained_files) {
 152       retained_files_ = retained_files;
 153     }
 154
 155     const gfx::Image& icon() const { return icon_; }
 156     void set_icon(const gfx::Image& icon) { icon_ = icon; }
 157
 158     bool has_webstore_data() const { return has_webstore_data_; }
 159
 160     const ExtensionInstallPromptExperiment* experiment() const {
 161       return experiment_;
 162     }
 163     void set_experiment(ExtensionInstallPromptExperiment* experiment) {
 164       experiment_ = experiment;
 165     }
 166
 167    private:
 168     bool ShouldDisplayRevokeFilesButton() const;
 169
 170     PromptType type_;
 171
 172     // Permissions that are being requested (may not be all of an extension's
 173     // permissions if only additional ones are being requested)
 174     std::vector<base::string16> permissions_;
 175     std::vector<base::string16> details_;
 176     std::vector<bool> is_showing_details_for_permissions_;
 177     std::vector<bool> is_showing_details_for_oauth_;
 178     bool is_showing_details_for_retained_files_;
 179
 180     // Descriptions and details for OAuth2 permissions to display to the user.
 181     // These correspond to permission scopes.
 182     IssueAdviceInfo oauth_issue_advice_;
 183
 184     // User name to be used in Oauth heading label.
 185     base::string16 oauth_user_name_;
 186
 187     // The extension or bundle being installed.
 188     const extensions::Extension* extension_;
 189     const extensions::BundleInstaller* bundle_;
 190
 191     // The icon to be displayed.
 192     gfx::Image icon_;
 193
 194     // These fields are populated only when the prompt type is
 195     // INLINE_INSTALL_PROMPT
 196     // Already formatted to be locale-specific.
 197     std::string localized_user_count_;
 198     // Range is kMinExtensionRating to kMaxExtensionRating
 199     double average_rating_;
 200     int rating_count_;
 201
 202     // Whether we should display the user count (we anticipate this will be
 203     // false if localized_user_count_ represents the number zero).
 204     bool show_user_count_;
 205
 206     // Whether or not this prompt has been populated with data from the
 207     // webstore.
 208     bool has_webstore_data_;
 209
 210     std::vector<base::FilePath> retained_files_;
 211
 212     scoped_refptr<ExtensionInstallPromptExperiment> experiment_;
 213   };
 214
 215   static const int kMinExtensionRating = 0;
 216   static const int kMaxExtensionRating = 5;
 217
 218   class Delegate {
 219    public:
 220     // We call this method to signal that the installation should continue.
 221     virtual void InstallUIProceed() = 0;
 222
 223     // We call this method to signal that the installation should stop, with
 224     // |user_initiated| true if the installation was stopped by the user.
 225     virtual void InstallUIAbort(bool user_initiated) = 0;
 226
 227    protected:
 228     virtual ~Delegate() {}
 229   };
 230
 231   // Parameters to show a prompt dialog. Two sets of the
 232   // parameters are supported: either use a parent WebContents or use a
 233   // parent NativeWindow + a PageNavigator.
 234   struct ShowParams {
 235     explicit ShowParams(content::WebContents* contents);
 236     ShowParams(gfx::NativeWindow window, content::PageNavigator* navigator);
 237
 238     // Parent web contents of the install UI dialog. This can be NULL.
 239     content::WebContents* parent_web_contents;
 240
 241     // NativeWindow parent and navigator. If initialized using a parent web
 242     // contents, these are derived from it.
 243     gfx::NativeWindow parent_window;
 244     content::PageNavigator* navigator;
 245   };
 246
 247   typedef base::Callback<void(const ExtensionInstallPrompt::ShowParams&,
 248                               ExtensionInstallPrompt::Delegate*,
 249                               const ExtensionInstallPrompt::Prompt&)>
 250       ShowDialogCallback;
 251
 252   // Callback to show the default extension install dialog.
 253   // The implementations of this function are platform-specific.
 254   static ShowDialogCallback GetDefaultShowDialogCallback();
 255
 256   // Creates a dummy extension from the |manifest|, replacing the name and
 257   // description with the localizations if provided.
 258   static scoped_refptr<extensions::Extension> GetLocalizedExtensionForDisplay(
 259       const base::DictionaryValue* manifest,
 260       int flags,  // Extension::InitFromValueFlags
 261       const std::string& id,
 262       const std::string& localized_name,
 263       const std::string& localized_description,
 264       std::string* error);
 265
 266   // Creates a prompt with a parent web content.
 267   explicit ExtensionInstallPrompt(content::WebContents* contents);
 268
 269   // Creates a prompt with a profile, a native window and a page navigator.
 270   ExtensionInstallPrompt(Profile* profile,
 271                          gfx::NativeWindow native_window,
 272                          content::PageNavigator* navigator);
 273
 274   virtual ~ExtensionInstallPrompt();
 275
 276   ExtensionInstallUI* install_ui() const { return install_ui_.get(); }
 277
 278   bool record_oauth2_grant() const { return record_oauth2_grant_; }
 279
 280   content::WebContents* parent_web_contents() const {
 281     return show_params_.parent_web_contents;
 282   }
 283
 284   // This is called by the bundle installer to verify whether the bundle
 285   // should be installed.
 286   //
 287   // We *MUST* eventually call either Proceed() or Abort() on |delegate|.
 288   virtual void ConfirmBundleInstall(
 289       extensions::BundleInstaller* bundle,
 290       const extensions::PermissionSet* permissions);
 291
 292   // This is called by the standalone installer to verify whether the install
 293   // from the webstore should proceed.
 294   //
 295   // We *MUST* eventually call either Proceed() or Abort() on |delegate|.
 296   virtual void ConfirmStandaloneInstall(Delegate* delegate,
 297                                         const extensions::Extension* extension,
 298                                         SkBitmap* icon,
 299                                         const Prompt& prompt);
 300
 301   // This is called by the installer to verify whether the installation from
 302   // the webstore should proceed. |show_dialog_callback| is optional and can be
 303   // NULL.
 304   //
 305   // We *MUST* eventually call either Proceed() or Abort() on |delegate|.
 306   virtual void ConfirmWebstoreInstall(
 307       Delegate* delegate,
 308       const extensions::Extension* extension,
 309       const SkBitmap* icon,
 310       const ShowDialogCallback& show_dialog_callback);
 311
 312   // This is called by the installer to verify whether the installation should
 313   // proceed. This is declared virtual for testing. |show_dialog_callback| is
 314   // optional and can be NULL.
 315   //
 316   // We *MUST* eventually call either Proceed() or Abort() on |delegate|.
 317   virtual void ConfirmInstall(Delegate* delegate,
 318                               const extensions::Extension* extension,
 319                               const ShowDialogCallback& show_dialog_callback);
 320
 321   // This is called by the app handler launcher to verify whether the app
 322   // should be re-enabled. This is declared virtual for testing.
 323   //
 324   // We *MUST* eventually call either Proceed() or Abort() on |delegate|.
 325   virtual void ConfirmReEnable(Delegate* delegate,
 326                                const extensions::Extension* extension);
 327
 328   // This is called by the external install alert UI to verify whether the
 329   // extension should be enabled (external extensions are installed disabled).
 330   //
 331   // We *MUST* eventually call either Proceed() or Abort() on |delegate|.
 332   virtual void ConfirmExternalInstall(
 333       Delegate* delegate,
 334       const extensions::Extension* extension,
 335       const ShowDialogCallback& show_dialog_callback,
 336       const Prompt& prompt);
 337
 338   // This is called by the extension permissions API to verify whether an
 339   // extension may be granted additional permissions.
 340   //
 341   // We *MUST* eventually call either Proceed() or Abort() on |delegate|.
 342   virtual void ConfirmPermissions(Delegate* delegate,
 343                                   const extensions::Extension* extension,
 344                                   const extensions::PermissionSet* permissions);
 345
 346   // This is called by the extension identity API to verify whether an
 347   // extension can be granted an OAuth2 token.
 348   //
 349   // We *MUST* eventually call either Proceed() or Abort() on |delegate|.
 350   virtual void ConfirmIssueAdvice(Delegate* delegate,
 351                                   const extensions::Extension* extension,
 352                                   const IssueAdviceInfo& issue_advice);
 353
 354   // This is called by the app handler launcher to review what permissions the
 355   // extension or app currently has.
 356   //
 357   // We *MUST* eventually call either Proceed() or Abort() on |delegate|.
 358   virtual void ReviewPermissions(
 359       Delegate* delegate,
 360       const extensions::Extension* extension,
 361       const std::vector<base::FilePath>& retained_file_paths);
 362
 363   // Installation was successful. This is declared virtual for testing.
 364   virtual void OnInstallSuccess(const extensions::Extension* extension,
 365                                 SkBitmap* icon);
 366
 367   // Installation failed. This is declared virtual for testing.
 368   virtual void OnInstallFailure(const extensions::CrxInstallerError& error);
 369
 370  protected:
 371   friend class extensions::ExtensionWebstorePrivateApiTest;
 372   friend class extensions::MockGetAuthTokenFunction;
 373   friend class WebstoreStartupInstallUnpackFailureTest;
 374
 375   // Whether or not we should record the oauth2 grant upon successful install.
 376   bool record_oauth2_grant_;
 377
 378  private:
 379   friend class GalleryInstallApiTestObserver;
 380
 381   // Sets the icon that will be used in any UI. If |icon| is NULL, or contains
 382   // an empty bitmap, then a default icon will be used instead.
 383   void SetIcon(const SkBitmap* icon);
 384
 385   // ImageLoader callback.
 386   void OnImageLoaded(const gfx::Image& image);
 387
 388   // Starts the process of showing a confirmation UI, which is split into two.
 389   // 1) Set off a 'load icon' task.
 390   // 2) Handle the load icon response and show the UI (OnImageLoaded).
 391   void LoadImageIfNeeded();
 392
 393   // OAuth2TokenService::Consumer implementation:
 394   virtual void OnGetTokenSuccess(const OAuth2TokenService::Request* request,
 395                                  const std::string& access_token,
 396                                  const base::Time& expiration_time) OVERRIDE;
 397   virtual void OnGetTokenFailure(const OAuth2TokenService::Request* request,
 398                                  const GoogleServiceAuthError& error) OVERRIDE;
 399
 400   // OAuth2MintTokenFlow::Delegate implementation:
 401   virtual void OnIssueAdviceSuccess(
 402       const IssueAdviceInfo& issue_advice) OVERRIDE;
 403   virtual void OnMintTokenFailure(
 404       const GoogleServiceAuthError& error) OVERRIDE;
 405
 406   // Shows the actual UI (the icon should already be loaded).
 407   void ShowConfirmation();
 408
 409   base::MessageLoop* ui_loop_;
 410
 411   // The extensions installation icon.
 412   SkBitmap icon_;
 413
 414   // The extension we are showing the UI for, if type is not
 415   // BUNDLE_INSTALL_PROMPT.
 416   const extensions::Extension* extension_;
 417
 418   // The bundle we are showing the UI for, if type BUNDLE_INSTALL_PROMPT.
 419   const extensions::BundleInstaller* bundle_;
 420
 421   // The permissions being prompted for.
 422   scoped_refptr<const extensions::PermissionSet> permissions_;
 423
 424   // The object responsible for doing the UI specific actions.
 425   scoped_ptr<ExtensionInstallUI> install_ui_;
 426
 427   // Parameters to show the confirmation UI.
 428   ShowParams show_params_;
 429
 430   // The delegate we will call Proceed/Abort on after confirmation UI.
 431   Delegate* delegate_;
 432
 433   // A pre-filled prompt.
 434   Prompt prompt_;
 435
 436   scoped_ptr<OAuth2TokenService::Request> login_token_request_;
 437   scoped_ptr<OAuth2MintTokenFlow> token_flow_;
 438
 439   // Used to show the confirm dialog.
 440   ShowDialogCallback show_dialog_callback_;
 441 };
 442
 443 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_INSTALL_PROMPT_H_