src/chrome/browser/ui/webui/extensions/chromeos/kiosk_apps_handler.cc

   1 // Copyright 2013 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 #include "chrome/browser/ui/webui/extensions/chromeos/kiosk_apps_handler.h"
   6
   7 #include <algorithm>
   8 #include <set>
   9 #include <string>
  10 #include <vector>
  11
  12 #include "base/bind.h"
  13 #include "base/command_line.h"
  14 #include "base/memory/scoped_ptr.h"
  15 #include "base/sys_info.h"
  16 #include "base/values.h"
  17 #include "chrome/browser/chromeos/login/user_manager.h"
  18 #include "chrome/browser/chromeos/settings/cros_settings.h"
  19 #include "chrome/common/extensions/extension_constants.h"
  20 #include "chromeos/chromeos_switches.h"
  21 #include "chromeos/settings/cros_settings_names.h"
  22 #include "content/public/browser/web_ui.h"
  23 #include "content/public/browser/web_ui_data_source.h"
  24 #include "extensions/common/extension.h"
  25 #include "grit/chromium_strings.h"
  26 #include "grit/generated_resources.h"
  27 #include "ui/base/l10n/l10n_util.h"
  28 #include "ui/base/webui/web_ui_util.h"
  29 #include "url/gurl.h"
  30
  31 namespace chromeos {
  32
  33 namespace {
  34
  35 // Populates app info dictionary with |app_data|.
  36 void PopulateAppDict(const KioskAppManager::App& app_data,
  37                      base::DictionaryValue* app_dict) {
  38   std::string icon_url("chrome://theme/IDR_APP_DEFAULT_ICON");
  39
  40   // TODO(xiyuan): Replace data url with a URLDataSource.
  41   if (!app_data.icon.isNull())
  42     icon_url = webui::GetBitmapDataUrl(*app_data.icon.bitmap());
  43
  44   app_dict->SetString("id", app_data.app_id);
  45   app_dict->SetString("name", app_data.name);
  46   app_dict->SetString("iconURL", icon_url);
  47   app_dict->SetBoolean(
  48       "autoLaunch",
  49       KioskAppManager::Get()->GetAutoLaunchApp() == app_data.app_id &&
  50       (KioskAppManager::Get()->IsAutoLaunchEnabled() ||
  51           KioskAppManager::Get()->IsAutoLaunchRequested()));
  52   app_dict->SetBoolean("isLoading", app_data.is_loading);
  53 }
  54
  55 // Sanitize app id input value and extracts app id out of it.
  56 // Returns false if an app id could not be derived out of the input.
  57 bool ExtractsAppIdFromInput(const std::string& input,
  58                             std::string* app_id) {
  59   if (extensions::Extension::IdIsValid(input)) {
  60     *app_id = input;
  61     return true;
  62   }
  63
  64   GURL webstore_url = GURL(input);
  65   if (!webstore_url.is_valid())
  66     return false;
  67
  68   GURL webstore_base_url =
  69       GURL(extension_urls::GetWebstoreItemDetailURLPrefix());
  70
  71   if (webstore_url.scheme() != webstore_base_url.scheme() ||
  72       webstore_url.host() != webstore_base_url.host() ||
  73       !StartsWithASCII(
  74           webstore_url.path(), webstore_base_url.path(), true)) {
  75     return false;
  76   }
  77
  78   const std::string path = webstore_url.path();
  79   const size_t last_slash = path.rfind('/');
  80   if (last_slash == std::string::npos)
  81     return false;
  82
  83   const std::string candidate_id = path.substr(last_slash + 1);
  84   if (!extensions::Extension::IdIsValid(candidate_id))
  85     return false;
  86
  87   *app_id = candidate_id;
  88   return true;
  89 }
  90
  91 }  // namespace
  92
  93 KioskAppsHandler::KioskAppsHandler()
  94     : kiosk_app_manager_(KioskAppManager::Get()),
  95       initialized_(false),
  96       is_kiosk_enabled_(false),
  97       weak_ptr_factory_(this) {
  98   kiosk_app_manager_->AddObserver(this);
  99 }
 100
 101 KioskAppsHandler::~KioskAppsHandler() {
 102   kiosk_app_manager_->RemoveObserver(this);
 103 }
 104
 105 void KioskAppsHandler::RegisterMessages() {
 106   web_ui()->RegisterMessageCallback("initializeKioskAppSettings",
 107       base::Bind(&KioskAppsHandler::HandleInitializeKioskAppSettings,
 108                  base::Unretained(this)));
 109   web_ui()->RegisterMessageCallback("getKioskAppSettings",
 110       base::Bind(&KioskAppsHandler::HandleGetKioskAppSettings,
 111                  base::Unretained(this)));
 112   web_ui()->RegisterMessageCallback("addKioskApp",
 113       base::Bind(&KioskAppsHandler::HandleAddKioskApp,
 114                  base::Unretained(this)));
 115   web_ui()->RegisterMessageCallback("removeKioskApp",
 116       base::Bind(&KioskAppsHandler::HandleRemoveKioskApp,
 117                  base::Unretained(this)));
 118   web_ui()->RegisterMessageCallback("enableKioskAutoLaunch",
 119       base::Bind(&KioskAppsHandler::HandleEnableKioskAutoLaunch,
 120                  base::Unretained(this)));
 121   web_ui()->RegisterMessageCallback("disableKioskAutoLaunch",
 122       base::Bind(&KioskAppsHandler::HandleDisableKioskAutoLaunch,
 123                  base::Unretained(this)));
 124   web_ui()->RegisterMessageCallback("setDisableBailoutShortcut",
 125       base::Bind(&KioskAppsHandler::HandleSetDisableBailoutShortcut,
 126                  base::Unretained(this)));
 127 }
 128
 129 void KioskAppsHandler::GetLocalizedValues(content::WebUIDataSource* source) {
 130   source->AddString(
 131       "addKioskAppButton",
 132       l10n_util::GetStringUTF16(IDS_EXTENSIONS_ADD_KIOSK_APP_BUTTON));
 133   source->AddString(
 134       "kioskOverlayTitle",
 135       l10n_util::GetStringUTF16(IDS_OPTIONS_KIOSK_OVERLAY_TITLE));
 136   source->AddString(
 137       "addKioskApp",
 138       l10n_util::GetStringUTF16(IDS_OPTIONS_KIOSK_ADD_APP));
 139   source->AddString(
 140       "kioskAppIdEditHint",
 141       l10n_util::GetStringUTF16(IDS_OPTIONS_KIOSK_ADD_APP_HINT));
 142   source->AddString(
 143       "enableAutoLaunchButton",
 144       l10n_util::GetStringUTF16(IDS_OPTIONS_KIOSK_ENABLE_AUTO_LAUNCH));
 145   source->AddString(
 146       "disableAutoLaunchButton",
 147       l10n_util::GetStringUTF16(IDS_OPTIONS_KIOSK_DISABLE_AUTO_LAUNCH));
 148   source->AddString(
 149       "autoLaunch",
 150       l10n_util::GetStringUTF16(IDS_OPTIONS_KIOSK_AUTO_LAUNCH));
 151   source->AddString(
 152       "invalidApp",
 153       l10n_util::GetStringUTF16(IDS_OPTIONS_KIOSK_INVALID_APP));
 154   source->AddString(
 155       "kioskDiableBailoutShortcutLabel",
 156       l10n_util::GetStringUTF16(
 157           IDS_OPTIONS_KIOSK_DISABLE_BAILOUT_SHORTCUT_LABEL));
 158   source->AddString(
 159       "kioskDisableBailoutShortcutWarningBold",
 160       l10n_util::GetStringUTF16(
 161           IDS_OPTIONS_KIOSK_DISABLE_BAILOUT_SHORTCUT_WARNING_BOLD));
 162   const base::string16 product_os_name =
 163       l10n_util::GetStringUTF16(IDS_SHORT_PRODUCT_OS_NAME);
 164   source->AddString(
 165       "kioskDisableBailoutShortcutWarning",
 166       l10n_util::GetStringFUTF16(
 167           IDS_OPTIONS_KIOSK_DISABLE_BAILOUT_SHORTCUT_WARNING_FORMAT,
 168           product_os_name));
 169   source->AddString(
 170       "kioskDisableBailoutShortcutConfirm",
 171       l10n_util::GetStringUTF16(IDS_CONFIRM_MESSAGEBOX_YES_BUTTON_LABEL));
 172   source->AddString(
 173       "kioskDisableBailoutShortcutCancel",
 174       l10n_util::GetStringUTF16(IDS_CONFIRM_MESSAGEBOX_NO_BUTTON_LABEL));
 175   source->AddString("done", l10n_util::GetStringUTF16(IDS_DONE));
 176   source->AddString("add", l10n_util::GetStringUTF16(IDS_ADD));
 177 }
 178
 179 void KioskAppsHandler::OnKioskAppDataChanged(const std::string& app_id) {
 180   KioskAppManager::App app_data;
 181   if (!kiosk_app_manager_->GetApp(app_id, &app_data))
 182     return;
 183
 184   base::DictionaryValue app_dict;
 185   PopulateAppDict(app_data, &app_dict);
 186
 187   web_ui()->CallJavascriptFunction("extensions.KioskAppsOverlay.updateApp",
 188                                    app_dict);
 189 }
 190
 191 void KioskAppsHandler::OnKioskAppDataLoadFailure(const std::string& app_id) {
 192   base::StringValue app_id_value(app_id);
 193   web_ui()->CallJavascriptFunction("extensions.KioskAppsOverlay.showError",
 194                                    app_id_value);
 195 }
 196
 197
 198 void KioskAppsHandler::OnGetConsumerKioskModeStatus(
 199     chromeos::KioskAppManager::ConsumerKioskModeStatus status) {
 200   initialized_ = true;
 201   is_kiosk_enabled_ =
 202       ((status == KioskAppManager::CONSUMER_KIOSK_MODE_ENABLED) &&
 203           chromeos::UserManager::Get()->IsCurrentUserOwner()) ||
 204       !base::SysInfo::IsRunningOnChromeOS();
 205
 206   if (is_kiosk_enabled_) {
 207     base::FundamentalValue enabled(is_kiosk_enabled_);
 208     web_ui()->CallJavascriptFunction("extensions.KioskAppsOverlay.enableKiosk",
 209                                      enabled);
 210   }
 211 }
 212
 213
 214 void KioskAppsHandler::OnKioskAppsSettingsChanged() {
 215   SendKioskAppSettings();
 216 }
 217
 218 void KioskAppsHandler::SendKioskAppSettings() {
 219   if (!initialized_ || !is_kiosk_enabled_)
 220     return;
 221
 222   bool enable_bailout_shortcut;
 223   if (!CrosSettings::Get()->GetBoolean(
 224           kAccountsPrefDeviceLocalAccountAutoLoginBailoutEnabled,
 225           &enable_bailout_shortcut)) {
 226     enable_bailout_shortcut = true;
 227   }
 228
 229   base::DictionaryValue settings;
 230   settings.SetBoolean("disableBailout", !enable_bailout_shortcut);
 231
 232   KioskAppManager::Apps apps;
 233   kiosk_app_manager_->GetApps(&apps);
 234
 235   scoped_ptr<base::ListValue> apps_list(new base::ListValue);
 236   for (size_t i = 0; i < apps.size(); ++i) {
 237     const KioskAppManager::App& app_data = apps[i];
 238
 239     scoped_ptr<base::DictionaryValue> app_info(new base::DictionaryValue);
 240     PopulateAppDict(app_data, app_info.get());
 241     apps_list->Append(app_info.release());
 242   }
 243   settings.SetWithoutPathExpansion("apps", apps_list.release());
 244
 245   web_ui()->CallJavascriptFunction("extensions.KioskAppsOverlay.setSettings",
 246                                    settings);
 247 }
 248
 249 void KioskAppsHandler::HandleInitializeKioskAppSettings(
 250     const base::ListValue* args) {
 251   KioskAppManager::Get()->GetConsumerKioskModeStatus(
 252       base::Bind(&KioskAppsHandler::OnGetConsumerKioskModeStatus,
 253                  weak_ptr_factory_.GetWeakPtr()));
 254 }
 255
 256 void KioskAppsHandler::HandleGetKioskAppSettings(const base::ListValue* args) {
 257   SendKioskAppSettings();
 258 }
 259
 260
 261 void KioskAppsHandler::HandleAddKioskApp(const base::ListValue* args) {
 262   if (!initialized_ || !is_kiosk_enabled_)
 263     return;
 264
 265   std::string input;
 266   CHECK(args->GetString(0, &input));
 267
 268   std::string app_id;
 269   if (!ExtractsAppIdFromInput(input, &app_id)) {
 270     OnKioskAppDataLoadFailure(input);
 271     return;
 272   }
 273
 274   kiosk_app_manager_->AddApp(app_id);
 275 }
 276
 277 void KioskAppsHandler::HandleRemoveKioskApp(const base::ListValue* args) {
 278   if (!initialized_ || !is_kiosk_enabled_)
 279     return;
 280
 281   std::string app_id;
 282   CHECK(args->GetString(0, &app_id));
 283
 284   kiosk_app_manager_->RemoveApp(app_id);
 285 }
 286
 287 void KioskAppsHandler::HandleEnableKioskAutoLaunch(
 288     const base::ListValue* args) {
 289   if (!initialized_ || !is_kiosk_enabled_)
 290     return;
 291
 292   std::string app_id;
 293   CHECK(args->GetString(0, &app_id));
 294
 295   kiosk_app_manager_->SetAutoLaunchApp(app_id);
 296 }
 297
 298 void KioskAppsHandler::HandleDisableKioskAutoLaunch(
 299     const base::ListValue* args) {
 300   if (!initialized_ || !is_kiosk_enabled_)
 301     return;
 302
 303   std::string app_id;
 304   CHECK(args->GetString(0, &app_id));
 305
 306   std::string startup_app_id = kiosk_app_manager_->GetAutoLaunchApp();
 307   if (startup_app_id != app_id)
 308     return;
 309
 310   kiosk_app_manager_->SetAutoLaunchApp("");
 311 }
 312
 313 void KioskAppsHandler::HandleSetDisableBailoutShortcut(
 314     const base::ListValue* args) {
 315   if (!initialized_ || !is_kiosk_enabled_)
 316     return;
 317
 318   bool disable_bailout_shortcut;
 319   CHECK(args->GetBoolean(0, &disable_bailout_shortcut));
 320
 321   CrosSettings::Get()->SetBoolean(
 322       kAccountsPrefDeviceLocalAccountAutoLoginBailoutEnabled,
 323       !disable_bailout_shortcut);
 324 }
 325
 326 }  // namespace chromeos