chrome/browser/ui/webui/chromeos/mobile_setup_ui.cc

   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 #include "chrome/browser/ui/webui/chromeos/mobile_setup_ui.h"
   6
   7 #include <algorithm>
   8 #include <map>
   9 #include <string>
  10
  11 #include "base/bind.h"
  12 #include "base/bind_helpers.h"
  13 #include "base/json/json_writer.h"
  14 #include "base/logging.h"
  15 #include "base/memory/ref_counted_memory.h"
  16 #include "base/memory/weak_ptr.h"
  17 #include "base/message_loop/message_loop.h"
  18 #include "base/metrics/histogram.h"
  19 #include "base/strings/string_piece.h"
  20 #include "base/strings/string_util.h"
  21 #include "base/strings/utf_string_conversions.h"
  22 #include "base/values.h"
  23 #include "chrome/browser/browser_process.h"
  24 #include "chrome/browser/chromeos/mobile/mobile_activator.h"
  25 #include "chrome/browser/profiles/profile.h"
  26 #include "chrome/browser/ui/browser_list.h"
  27 #include "chrome/common/render_messages.h"
  28 #include "chrome/common/url_constants.h"
  29 #include "chrome/grit/generated_resources.h"
  30 #include "chrome/grit/locale_settings.h"
  31 #include "chromeos/network/device_state.h"
  32 #include "chromeos/network/network_configuration_handler.h"
  33 #include "chromeos/network/network_event_log.h"
  34 #include "chromeos/network/network_state.h"
  35 #include "chromeos/network/network_state_handler.h"
  36 #include "chromeos/network/network_state_handler_observer.h"
  37 #include "content/public/browser/browser_thread.h"
  38 #include "content/public/browser/render_frame_host.h"
  39 #include "content/public/browser/url_data_source.h"
  40 #include "content/public/browser/web_contents.h"
  41 #include "content/public/browser/web_ui.h"
  42 #include "content/public/browser/web_ui_message_handler.h"
  43 #include "grit/browser_resources.h"
  44 #include "third_party/cros_system_api/dbus/service_constants.h"
  45 #include "ui/base/l10n/l10n_util.h"
  46 #include "ui/base/resource/resource_bundle.h"
  47 #include "ui/base/webui/jstemplate_builder.h"
  48 #include "ui/base/webui/web_ui_util.h"
  49 #include "url/gurl.h"
  50
  51 using chromeos::MobileActivator;
  52 using chromeos::NetworkHandler;
  53 using chromeos::NetworkState;
  54 using content::BrowserThread;
  55 using content::RenderViewHost;
  56 using content::WebContents;
  57 using content::WebUIMessageHandler;
  58
  59 namespace {
  60
  61 // Host page JS API function names.
  62 const char kJsApiStartActivation[] = "startActivation";
  63 const char kJsApiSetTransactionStatus[] = "setTransactionStatus";
  64 const char kJsApiPaymentPortalLoad[] = "paymentPortalLoad";
  65 const char kJsGetDeviceInfo[] = "getDeviceInfo";
  66 const char kJsApiResultOK[] = "ok";
  67
  68 const char kJsDeviceStatusChangedCallback[] =
  69     "mobile.MobileSetup.deviceStateChanged";
  70 const char kJsPortalFrameLoadFailedCallback[] =
  71     "mobile.MobileSetup.portalFrameLoadError";
  72 const char kJsPortalFrameLoadCompletedCallback[] =
  73     "mobile.MobileSetup.portalFrameLoadCompleted";
  74 const char kJsGetDeviceInfoCallback[] =
  75     "mobile.MobileSetupPortal.onGotDeviceInfo";
  76 const char kJsConnectivityChangedCallback[] =
  77     "mobile.MobileSetupPortal.onConnectivityChanged";
  78
  79 void DataRequestFailed(
  80     const std::string& service_path,
  81     const content::URLDataSource::GotDataCallback& callback) {
  82   NET_LOG_ERROR("Data Request Failed for Mobile Setup", service_path);
  83   scoped_refptr<base::RefCountedBytes> html_bytes(new base::RefCountedBytes);
  84   callback.Run(html_bytes.get());
  85 }
  86
  87 // Converts the network properties into a JS object.
  88 void GetDeviceInfo(const base::DictionaryValue& properties,
  89                    base::DictionaryValue* value) {
  90   std::string name;
  91   properties.GetStringWithoutPathExpansion(shill::kNameProperty, &name);
  92   std::string activation_type;
  93   properties.GetStringWithoutPathExpansion(
  94       shill::kActivationTypeProperty,
  95       &activation_type);
  96   const base::DictionaryValue* payment_dict;
  97   std::string payment_url, post_method, post_data;
  98   if (properties.GetDictionaryWithoutPathExpansion(
  99           shill::kPaymentPortalProperty, &payment_dict)) {
 100     payment_dict->GetStringWithoutPathExpansion(
 101         shill::kPaymentPortalURL, &payment_url);
 102     payment_dict->GetStringWithoutPathExpansion(
 103         shill::kPaymentPortalMethod, &post_method);
 104     payment_dict->GetStringWithoutPathExpansion(
 105         shill::kPaymentPortalPostData, &post_data);
 106   }
 107
 108   value->SetString("activation_type", activation_type);
 109   value->SetString("carrier", name);
 110   value->SetString("payment_url", payment_url);
 111   if (LowerCaseEqualsASCII(post_method, "post") && !post_data.empty())
 112     value->SetString("post_data", post_data);
 113
 114   // Use the cached DeviceState properties.
 115   std::string device_path;
 116   if (!properties.GetStringWithoutPathExpansion(
 117           shill::kDeviceProperty, &device_path) ||
 118       device_path.empty()) {
 119     return;
 120   }
 121   const chromeos::DeviceState* device =
 122       NetworkHandler::Get()->network_state_handler()->GetDeviceState(
 123           device_path);
 124   if (!device)
 125     return;
 126
 127   value->SetString("MEID", device->meid());
 128   value->SetString("IMEI", device->imei());
 129   value->SetString("MDN", device->mdn());
 130 }
 131
 132 void SetActivationStateAndError(MobileActivator::PlanActivationState state,
 133                                 const std::string& error_description,
 134                                 base::DictionaryValue* value) {
 135   value->SetInteger("state", state);
 136   if (!error_description.empty())
 137     value->SetString("error", error_description);
 138 }
 139
 140 }  // namespace
 141
 142 class MobileSetupUIHTMLSource : public content::URLDataSource {
 143  public:
 144   MobileSetupUIHTMLSource();
 145
 146   // content::URLDataSource implementation.
 147   std::string GetSource() const override;
 148   void StartDataRequest(
 149       const std::string& path,
 150       int render_process_id,
 151       int render_frame_id,
 152       const content::URLDataSource::GotDataCallback& callback) override;
 153   std::string GetMimeType(const std::string&) const override {
 154     return "text/html";
 155   }
 156   bool ShouldAddContentSecurityPolicy() const override { return false; }
 157
 158  private:
 159   ~MobileSetupUIHTMLSource() override {}
 160
 161   void GetPropertiesAndStartDataRequest(
 162       const content::URLDataSource::GotDataCallback& callback,
 163       const std::string& service_path,
 164       const base::DictionaryValue& properties);
 165   void GetPropertiesFailure(
 166       const content::URLDataSource::GotDataCallback& callback,
 167       const std::string& service_path,
 168       const std::string& error_name,
 169       scoped_ptr<base::DictionaryValue> error_data);
 170
 171   base::WeakPtrFactory<MobileSetupUIHTMLSource> weak_ptr_factory_;
 172
 173   DISALLOW_COPY_AND_ASSIGN(MobileSetupUIHTMLSource);
 174 };
 175
 176 // The handler for Javascript messages related to the "register" view.
 177 class MobileSetupHandler
 178   : public WebUIMessageHandler,
 179     public MobileActivator::Observer,
 180     public chromeos::NetworkStateHandlerObserver,
 181     public base::SupportsWeakPtr<MobileSetupHandler> {
 182  public:
 183   MobileSetupHandler();
 184   ~MobileSetupHandler() override;
 185
 186   // WebUIMessageHandler implementation.
 187   void RegisterMessages() override;
 188
 189  private:
 190   enum Type {
 191     TYPE_UNDETERMINED,
 192     // The network is not yet activated, and the webui is in activation flow.
 193     TYPE_ACTIVATION,
 194     // The network is activated, the webui displays network portal.
 195     TYPE_PORTAL,
 196     // Same as TYPE_PORTAL, but the network technology is LTE. The webui is
 197     // additionally aware of network manager state and whether the portal can be
 198     // reached.
 199     TYPE_PORTAL_LTE
 200   };
 201
 202   // MobileActivator::Observer.
 203   void OnActivationStateChanged(const NetworkState* network,
 204                                 MobileActivator::PlanActivationState new_state,
 205                                 const std::string& error_description) override;
 206
 207   // Callbacks for NetworkConfigurationHandler::GetProperties.
 208   void GetPropertiesAndCallStatusChanged(
 209       MobileActivator::PlanActivationState state,
 210       const std::string& error_description,
 211       const std::string& service_path,
 212       const base::DictionaryValue& properties);
 213   void GetPropertiesAndCallGetDeviceInfo(
 214       const std::string& service_path,
 215       const base::DictionaryValue& properties);
 216   void GetPropertiesFailure(
 217       const std::string& service_path,
 218       const std::string& callback_name,
 219       const std::string& error_name,
 220       scoped_ptr<base::DictionaryValue> error_data);
 221
 222   // Handlers for JS WebUI messages.
 223   void HandleSetTransactionStatus(const base::ListValue* args);
 224   void HandleStartActivation(const base::ListValue* args);
 225   void HandlePaymentPortalLoad(const base::ListValue* args);
 226   void HandleGetDeviceInfo(const base::ListValue* args);
 227
 228   // NetworkStateHandlerObserver implementation.
 229   void NetworkConnectionStateChanged(const NetworkState* network) override;
 230   void DefaultNetworkChanged(const NetworkState* default_network) override;
 231
 232   // Updates |lte_portal_reachable_| for lte network |network| and notifies
 233   // webui of the new state if the reachability changed or |force_notification|
 234   // is set.
 235   void UpdatePortalReachability(const NetworkState* network,
 236                                 bool force_notification);
 237
 238   // Sends message to host registration page with system/user info data.
 239   void SendDeviceInfo();
 240
 241   // Type of the mobilesetup webui deduced from received messages.
 242   Type type_;
 243   // Whether portal page for lte networks can be reached in current network
 244   // connection state. This value is reflected in portal webui for lte networks.
 245   // Initial value is true.
 246   bool lte_portal_reachable_;
 247   base::WeakPtrFactory<MobileSetupHandler> weak_ptr_factory_;
 248
 249   DISALLOW_COPY_AND_ASSIGN(MobileSetupHandler);
 250 };
 251
 252 ////////////////////////////////////////////////////////////////////////////////
 253 //
 254 // MobileSetupUIHTMLSource
 255 //
 256 ////////////////////////////////////////////////////////////////////////////////
 257
 258 MobileSetupUIHTMLSource::MobileSetupUIHTMLSource()
 259     : weak_ptr_factory_(this) {
 260 }
 261
 262 std::string MobileSetupUIHTMLSource::GetSource() const {
 263   return chrome::kChromeUIMobileSetupHost;
 264 }
 265
 266 void MobileSetupUIHTMLSource::StartDataRequest(
 267     const std::string& path,
 268     int render_process_id,
 269     int render_frame_id,
 270     const content::URLDataSource::GotDataCallback& callback) {
 271   NetworkHandler::Get()->network_configuration_handler()->GetShillProperties(
 272       path,
 273       base::Bind(&MobileSetupUIHTMLSource::GetPropertiesAndStartDataRequest,
 274                  weak_ptr_factory_.GetWeakPtr(), callback),
 275       base::Bind(&MobileSetupUIHTMLSource::GetPropertiesFailure,
 276                  weak_ptr_factory_.GetWeakPtr(), callback, path));
 277 }
 278
 279 void MobileSetupUIHTMLSource::GetPropertiesAndStartDataRequest(
 280     const content::URLDataSource::GotDataCallback& callback,
 281     const std::string& service_path,
 282     const base::DictionaryValue& properties) {
 283   const base::DictionaryValue* payment_dict;
 284   std::string name, usage_url, activation_state, payment_url;
 285   if (!properties.GetStringWithoutPathExpansion(
 286           shill::kNameProperty, &name) ||
 287       !properties.GetStringWithoutPathExpansion(
 288           shill::kUsageURLProperty, &usage_url) ||
 289       !properties.GetStringWithoutPathExpansion(
 290           shill::kActivationStateProperty, &activation_state) ||
 291       !properties.GetDictionaryWithoutPathExpansion(
 292           shill::kPaymentPortalProperty, &payment_dict) ||
 293       !payment_dict->GetStringWithoutPathExpansion(
 294           shill::kPaymentPortalURL, &payment_url)) {
 295     DataRequestFailed(service_path, callback);
 296     return;
 297   }
 298
 299   if (payment_url.empty() && usage_url.empty() &&
 300       activation_state != shill::kActivationStateActivated) {
 301     DataRequestFailed(service_path, callback);
 302     return;
 303   }
 304
 305   NET_LOG_EVENT("Starting mobile setup", service_path);
 306   base::DictionaryValue strings;
 307
 308   strings.SetString("connecting_header",
 309                     l10n_util::GetStringFUTF16(IDS_MOBILE_CONNECTING_HEADER,
 310                                                base::UTF8ToUTF16(name)));
 311   strings.SetString("error_header",
 312                     l10n_util::GetStringUTF16(IDS_MOBILE_ERROR_HEADER));
 313   strings.SetString("activating_header",
 314                     l10n_util::GetStringUTF16(IDS_MOBILE_ACTIVATING_HEADER));
 315   strings.SetString("completed_header",
 316                     l10n_util::GetStringUTF16(IDS_MOBILE_COMPLETED_HEADER));
 317   strings.SetString("please_wait",
 318                     l10n_util::GetStringUTF16(IDS_MOBILE_PLEASE_WAIT));
 319   strings.SetString("completed_text",
 320                     l10n_util::GetStringUTF16(IDS_MOBILE_COMPLETED_TEXT));
 321   strings.SetString("portal_unreachable_header",
 322                     l10n_util::GetStringUTF16(IDS_MOBILE_NO_CONNECTION_HEADER));
 323   strings.SetString("invalid_device_info_header",
 324       l10n_util::GetStringUTF16(IDS_MOBILE_INVALID_DEVICE_INFO_HEADER));
 325   strings.SetString("title", l10n_util::GetStringUTF16(IDS_MOBILE_SETUP_TITLE));
 326   strings.SetString("close_button",
 327                     l10n_util::GetStringUTF16(IDS_CLOSE));
 328   strings.SetString("cancel_button",
 329                     l10n_util::GetStringUTF16(IDS_CANCEL));
 330   strings.SetString("ok_button",
 331                     l10n_util::GetStringUTF16(IDS_OK));
 332
 333   const std::string& app_locale = g_browser_process->GetApplicationLocale();
 334   webui::SetLoadTimeDataDefaults(app_locale, &strings);
 335
 336   // The webui differs based on whether the network is activated or not. If the
 337   // network is activated, the webui goes straight to portal. Otherwise the
 338   // webui is used for activation flow.
 339   std::string full_html;
 340   if (activation_state == shill::kActivationStateActivated) {
 341     static const base::StringPiece html_for_activated(
 342         ResourceBundle::GetSharedInstance().GetRawDataResource(
 343             IDR_MOBILE_SETUP_PORTAL_PAGE_HTML));
 344     full_html = webui::GetI18nTemplateHtml(html_for_activated, &strings);
 345   } else {
 346     static const base::StringPiece html_for_non_activated(
 347         ResourceBundle::GetSharedInstance().GetRawDataResource(
 348             IDR_MOBILE_SETUP_PAGE_HTML));
 349     full_html = webui::GetI18nTemplateHtml(html_for_non_activated, &strings);
 350   }
 351
 352   callback.Run(base::RefCountedString::TakeString(&full_html));
 353 }
 354
 355 void MobileSetupUIHTMLSource::GetPropertiesFailure(
 356     const content::URLDataSource::GotDataCallback& callback,
 357     const std::string& service_path,
 358     const std::string& error_name,
 359     scoped_ptr<base::DictionaryValue> error_data) {
 360   DataRequestFailed(service_path, callback);
 361 }
 362
 363 ////////////////////////////////////////////////////////////////////////////////
 364 //
 365 // MobileSetupHandler
 366 //
 367 ////////////////////////////////////////////////////////////////////////////////
 368 MobileSetupHandler::MobileSetupHandler()
 369     : type_(TYPE_UNDETERMINED),
 370       lte_portal_reachable_(true),
 371       weak_ptr_factory_(this) {
 372 }
 373
 374 MobileSetupHandler::~MobileSetupHandler() {
 375   if (type_ == TYPE_ACTIVATION) {
 376     MobileActivator::GetInstance()->RemoveObserver(this);
 377     MobileActivator::GetInstance()->TerminateActivation();
 378   } else if (type_ == TYPE_PORTAL_LTE) {
 379     NetworkHandler::Get()->network_state_handler()->RemoveObserver(this,
 380                                                                    FROM_HERE);
 381   }
 382 }
 383
 384 void MobileSetupHandler::OnActivationStateChanged(
 385     const NetworkState* network,
 386     MobileActivator::PlanActivationState state,
 387     const std::string& error_description) {
 388   DCHECK_EQ(TYPE_ACTIVATION, type_);
 389   if (!web_ui())
 390     return;
 391
 392   if (!network) {
 393     base::DictionaryValue device_dict;
 394     SetActivationStateAndError(state, error_description, &device_dict);
 395     web_ui()->CallJavascriptFunction(kJsDeviceStatusChangedCallback,
 396                                      device_dict);
 397     return;
 398   }
 399
 400   NetworkHandler::Get()->network_configuration_handler()->GetShillProperties(
 401       network->path(),
 402       base::Bind(&MobileSetupHandler::GetPropertiesAndCallStatusChanged,
 403                  weak_ptr_factory_.GetWeakPtr(), state, error_description),
 404       base::Bind(&MobileSetupHandler::GetPropertiesFailure,
 405                  weak_ptr_factory_.GetWeakPtr(), network->path(),
 406                  kJsDeviceStatusChangedCallback));
 407 }
 408
 409 void MobileSetupHandler::GetPropertiesAndCallStatusChanged(
 410     MobileActivator::PlanActivationState state,
 411     const std::string& error_description,
 412     const std::string& service_path,
 413     const base::DictionaryValue& properties) {
 414   base::DictionaryValue device_dict;
 415   GetDeviceInfo(properties, &device_dict);
 416   SetActivationStateAndError(state, error_description, &device_dict);
 417   web_ui()->CallJavascriptFunction(kJsDeviceStatusChangedCallback, device_dict);
 418 }
 419
 420 void MobileSetupHandler::RegisterMessages() {
 421   web_ui()->RegisterMessageCallback(kJsApiStartActivation,
 422       base::Bind(&MobileSetupHandler::HandleStartActivation,
 423                  base::Unretained(this)));
 424   web_ui()->RegisterMessageCallback(kJsApiSetTransactionStatus,
 425       base::Bind(&MobileSetupHandler::HandleSetTransactionStatus,
 426                  base::Unretained(this)));
 427   web_ui()->RegisterMessageCallback(kJsApiPaymentPortalLoad,
 428       base::Bind(&MobileSetupHandler::HandlePaymentPortalLoad,
 429                  base::Unretained(this)));
 430   web_ui()->RegisterMessageCallback(kJsGetDeviceInfo,
 431       base::Bind(&MobileSetupHandler::HandleGetDeviceInfo,
 432                  base::Unretained(this)));
 433 }
 434
 435 void MobileSetupHandler::HandleStartActivation(const base::ListValue* args) {
 436   DCHECK_EQ(TYPE_UNDETERMINED, type_);
 437
 438   if (!web_ui())
 439     return;
 440
 441   std::string path = web_ui()->GetWebContents()->GetURL().path();
 442   if (!path.size())
 443     return;
 444
 445   LOG(WARNING) << "Starting activation for service " << path;
 446
 447   type_ = TYPE_ACTIVATION;
 448   MobileActivator::GetInstance()->AddObserver(this);
 449   MobileActivator::GetInstance()->InitiateActivation(path.substr(1));
 450 }
 451
 452 void MobileSetupHandler::HandleSetTransactionStatus(
 453     const base::ListValue* args) {
 454   DCHECK_EQ(TYPE_ACTIVATION, type_);
 455   if (!web_ui())
 456     return;
 457
 458   const size_t kSetTransactionStatusParamCount = 1;
 459   if (args->GetSize() != kSetTransactionStatusParamCount)
 460     return;
 461   // Get change callback function name.
 462   std::string status;
 463   if (!args->GetString(0, &status))
 464     return;
 465
 466   MobileActivator::GetInstance()->OnSetTransactionStatus(
 467       LowerCaseEqualsASCII(status, kJsApiResultOK));
 468 }
 469
 470 void MobileSetupHandler::HandlePaymentPortalLoad(const base::ListValue* args) {
 471   // Only activation flow webui is interested in these events.
 472   if (type_ != TYPE_ACTIVATION || !web_ui())
 473     return;
 474
 475   const size_t kPaymentPortalLoadParamCount = 1;
 476   if (args->GetSize() != kPaymentPortalLoadParamCount)
 477     return;
 478   // Get change callback function name.
 479   std::string result;
 480   if (!args->GetString(0, &result))
 481     return;
 482
 483   MobileActivator::GetInstance()->OnPortalLoaded(
 484       LowerCaseEqualsASCII(result, kJsApiResultOK));
 485 }
 486
 487 void MobileSetupHandler::HandleGetDeviceInfo(const base::ListValue* args) {
 488   DCHECK_NE(TYPE_ACTIVATION, type_);
 489   if (!web_ui())
 490     return;
 491
 492   std::string path = web_ui()->GetWebContents()->GetURL().path();
 493   if (path.empty())
 494     return;
 495
 496   chromeos::NetworkStateHandler* nsh =
 497       NetworkHandler::Get()->network_state_handler();
 498   // TODO: Figure out why the path has an extra '/' in the front. (e.g. It is
 499   // '//service/5' instead of '/service/5'.
 500   const NetworkState* network = nsh->GetNetworkState(path.substr(1));
 501   if (!network) {
 502     web_ui()->GetWebContents()->Close();
 503     return;
 504   }
 505
 506   // If this is the initial call, update the network status and start observing
 507   // network changes, but only for LTE networks. The other networks should
 508   // ignore network status.
 509   if (type_ == TYPE_UNDETERMINED) {
 510     if (network->network_technology() == shill::kNetworkTechnologyLte ||
 511         network->network_technology() == shill::kNetworkTechnologyLteAdvanced) {
 512       type_ = TYPE_PORTAL_LTE;
 513       nsh->AddObserver(this, FROM_HERE);
 514       // Update the network status and notify the webui. This is the initial
 515       // network state so the webui should be notified no matter what.
 516       UpdatePortalReachability(network,
 517                                true /* force notification */);
 518     } else {
 519       type_ = TYPE_PORTAL;
 520       // For non-LTE networks network state is ignored, so report the portal is
 521       // reachable, so it gets shown.
 522       web_ui()->CallJavascriptFunction(kJsConnectivityChangedCallback,
 523                                        base::FundamentalValue(true));
 524     }
 525   }
 526
 527   NetworkHandler::Get()->network_configuration_handler()->GetShillProperties(
 528       network->path(),
 529       base::Bind(&MobileSetupHandler::GetPropertiesAndCallGetDeviceInfo,
 530                  weak_ptr_factory_.GetWeakPtr()),
 531       base::Bind(&MobileSetupHandler::GetPropertiesFailure,
 532                  weak_ptr_factory_.GetWeakPtr(), network->path(),
 533                  kJsGetDeviceInfoCallback));
 534 }
 535
 536 void MobileSetupHandler::GetPropertiesAndCallGetDeviceInfo(
 537     const std::string& service_path,
 538     const base::DictionaryValue& properties) {
 539   base::DictionaryValue device_info;
 540   GetDeviceInfo(properties, &device_info);
 541   web_ui()->CallJavascriptFunction(kJsGetDeviceInfoCallback, device_info);
 542 }
 543
 544 void MobileSetupHandler::GetPropertiesFailure(
 545     const std::string& service_path,
 546     const std::string& callback_name,
 547     const std::string& error_name,
 548     scoped_ptr<base::DictionaryValue> error_data) {
 549   NET_LOG_ERROR("MobileActivator GetProperties Failed: " + error_name,
 550                 service_path);
 551   // Invoke |callback_name| with an empty dictionary.
 552   base::DictionaryValue device_dict;
 553   web_ui()->CallJavascriptFunction(callback_name, device_dict);
 554 }
 555
 556 void MobileSetupHandler::DefaultNetworkChanged(
 557     const NetworkState* default_network) {
 558   if (!web_ui())
 559     return;
 560
 561   std::string path = web_ui()->GetWebContents()->GetURL().path().substr(1);
 562   if (path.empty())
 563     return;
 564
 565   const NetworkState* network =
 566       NetworkHandler::Get()->network_state_handler()->GetNetworkState(path);
 567   if (!network) {
 568     LOG(ERROR) << "Service path lost";
 569     web_ui()->GetWebContents()->Close();
 570     return;
 571   }
 572
 573   UpdatePortalReachability(network, false /* do not force notification */);
 574 }
 575
 576 void MobileSetupHandler::NetworkConnectionStateChanged(
 577     const NetworkState* network) {
 578   if (!web_ui())
 579     return;
 580
 581   std::string path = web_ui()->GetWebContents()->GetURL().path().substr(1);
 582   if (path.empty() || path != network->path())
 583     return;
 584
 585   UpdatePortalReachability(network, false /* do not force notification */);
 586 }
 587
 588 void MobileSetupHandler::UpdatePortalReachability(
 589     const NetworkState* network,
 590     bool force_notification) {
 591   DCHECK(web_ui());
 592
 593   DCHECK_EQ(type_, TYPE_PORTAL_LTE);
 594
 595   chromeos::NetworkStateHandler* nsh =
 596       NetworkHandler::Get()->network_state_handler();
 597   bool portal_reachable =
 598       (network->IsConnectedState() ||
 599        (nsh->DefaultNetwork() &&
 600         nsh->DefaultNetwork()->connection_state() == shill::kStateOnline));
 601
 602   if (force_notification || portal_reachable != lte_portal_reachable_) {
 603     web_ui()->CallJavascriptFunction(kJsConnectivityChangedCallback,
 604                                      base::FundamentalValue(portal_reachable));
 605   }
 606
 607   lte_portal_reachable_ = portal_reachable;
 608 }
 609
 610 ////////////////////////////////////////////////////////////////////////////////
 611 //
 612 // MobileSetupUI
 613 //
 614 ////////////////////////////////////////////////////////////////////////////////
 615
 616 MobileSetupUI::MobileSetupUI(content::WebUI* web_ui)
 617     : WebUIController(web_ui) {
 618   web_ui->AddMessageHandler(new MobileSetupHandler());
 619   MobileSetupUIHTMLSource* html_source = new MobileSetupUIHTMLSource();
 620
 621   // Set up the chrome://mobilesetup/ source.
 622   Profile* profile = Profile::FromWebUI(web_ui);
 623   content::URLDataSource::Add(profile, html_source);
 624
 625   content::WebContentsObserver::Observe(web_ui->GetWebContents());
 626 }
 627
 628 void MobileSetupUI::DidCommitProvisionalLoadForFrame(
 629     content::RenderFrameHost* render_frame_host,
 630     const GURL& url,
 631     ui::PageTransition transition_type) {
 632   if (render_frame_host->GetFrameName() != "paymentForm")
 633     return;
 634
 635   web_ui()->CallJavascriptFunction(
 636         kJsPortalFrameLoadCompletedCallback);
 637 }
 638
 639 void MobileSetupUI::DidFailProvisionalLoad(
 640     content::RenderFrameHost* render_frame_host,
 641     const GURL& validated_url,
 642     int error_code,
 643     const base::string16& error_description) {
 644   if (render_frame_host->GetFrameName() != "paymentForm")
 645     return;
 646
 647   base::FundamentalValue result_value(-error_code);
 648   web_ui()->CallJavascriptFunction(kJsPortalFrameLoadFailedCallback,
 649                                    result_value);
 650 }