src/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/chromeos/mobile/mobile_activator.h"
  24 #include "chrome/browser/profiles/profile.h"
  25 #include "chrome/browser/ui/browser_list.h"
  26 #include "chrome/common/pref_names.h"
  27 #include "chrome/common/render_messages.h"
  28 #include "chrome/common/url_constants.h"
  29 #include "chromeos/network/device_state.h"
  30 #include "chromeos/network/network_configuration_handler.h"
  31 #include "chromeos/network/network_event_log.h"
  32 #include "chromeos/network/network_state.h"
  33 #include "chromeos/network/network_state_handler.h"
  34 #include "chromeos/network/network_state_handler_observer.h"
  35 #include "content/public/browser/browser_thread.h"
  36 #include "content/public/browser/render_frame_host.h"
  37 #include "content/public/browser/url_data_source.h"
  38 #include "content/public/browser/web_contents.h"
  39 #include "content/public/browser/web_ui.h"
  40 #include "content/public/browser/web_ui_message_handler.h"
  41 #include "grit/browser_resources.h"
  42 #include "grit/chromium_strings.h"
  43 #include "grit/generated_resources.h"
  44 #include "grit/locale_settings.h"
  45 #include "third_party/cros_system_api/dbus/service_constants.h"
  46 #include "ui/base/l10n/l10n_util.h"
  47 #include "ui/base/resource/resource_bundle.h"
  48 #include "ui/base/webui/jstemplate_builder.h"
  49 #include "ui/base/webui/web_ui_util.h"
  50 #include "url/gurl.h"
  51
  52 using chromeos::MobileActivator;
  53 using chromeos::NetworkHandler;
  54 using chromeos::NetworkState;
  55 using content::BrowserThread;
  56 using content::RenderViewHost;
  57 using content::WebContents;
  58 using content::WebUIMessageHandler;
  59
  60 namespace {
  61
  62 // Host page JS API function names.
  63 const char kJsApiStartActivation[] = "startActivation";
  64 const char kJsApiSetTransactionStatus[] = "setTransactionStatus";
  65 const char kJsApiPaymentPortalLoad[] = "paymentPortalLoad";
  66 const char kJsGetDeviceInfo[] = "getDeviceInfo";
  67 const char kJsApiResultOK[] = "ok";
  68
  69 const char kJsDeviceStatusChangedCallback[] =
  70     "mobile.MobileSetup.deviceStateChanged";
  71 const char kJsPortalFrameLoadFailedCallback[] =
  72     "mobile.MobileSetup.portalFrameLoadError";
  73 const char kJsPortalFrameLoadCompletedCallback[] =
  74     "mobile.MobileSetup.portalFrameLoadCompleted";
  75 const char kJsGetDeviceInfoCallback[] =
  76     "mobile.MobileSetupPortal.onGotDeviceInfo";
  77 const char kJsConnectivityChangedCallback[] =
  78     "mobile.MobileSetupPortal.onConnectivityChanged";
  79
  80 void DataRequestFailed(
  81     const std::string& service_path,
  82     const content::URLDataSource::GotDataCallback& callback) {
  83   NET_LOG_ERROR("Data Request Failed for Mobile Setup", service_path);
  84   scoped_refptr<base::RefCountedBytes> html_bytes(new base::RefCountedBytes);
  85   callback.Run(html_bytes.get());
  86 }
  87
  88 // Converts the network properties into a JS object.
  89 void GetDeviceInfo(const base::DictionaryValue& properties,
  90                    base::DictionaryValue* value) {
  91   std::string name;
  92   properties.GetStringWithoutPathExpansion(shill::kNameProperty, &name);
  93   std::string activation_type;
  94   properties.GetStringWithoutPathExpansion(
  95       shill::kActivationTypeProperty,
  96       &activation_type);
  97   const base::DictionaryValue* payment_dict;
  98   std::string payment_url, post_method, post_data;
  99   if (properties.GetDictionaryWithoutPathExpansion(
 100           shill::kPaymentPortalProperty, &payment_dict)) {
 101     payment_dict->GetStringWithoutPathExpansion(
 102         shill::kPaymentPortalURL, &payment_url);
 103     payment_dict->GetStringWithoutPathExpansion(
 104         shill::kPaymentPortalMethod, &post_method);
 105     payment_dict->GetStringWithoutPathExpansion(
 106         shill::kPaymentPortalPostData, &post_data);
 107   }
 108
 109   value->SetString("activation_type", activation_type);
 110   value->SetString("carrier", name);
 111   value->SetString("payment_url", payment_url);
 112   if (LowerCaseEqualsASCII(post_method, "post") && !post_data.empty())
 113     value->SetString("post_data", post_data);
 114
 115   // Use the cached DeviceState properties.
 116   std::string device_path;
 117   if (!properties.GetStringWithoutPathExpansion(
 118           shill::kDeviceProperty, &device_path) ||
 119       device_path.empty()) {
 120     return;
 121   }
 122   const chromeos::DeviceState* device =
 123       NetworkHandler::Get()->network_state_handler()->GetDeviceState(
 124           device_path);
 125   if (!device)
 126     return;
 127
 128   value->SetString("MEID", device->meid());
 129   value->SetString("IMEI", device->imei());
 130   value->SetString("MDN", device->mdn());
 131 }
 132
 133 void SetActivationStateAndError(MobileActivator::PlanActivationState state,
 134                                 const std::string& error_description,
 135                                 base::DictionaryValue* value) {
 136   value->SetInteger("state", state);
 137   if (!error_description.empty())
 138     value->SetString("error", error_description);
 139 }
 140
 141 }  // namespace
 142
 143 class MobileSetupUIHTMLSource : public content::URLDataSource {
 144  public:
 145   MobileSetupUIHTMLSource();
 146
 147   // content::URLDataSource implementation.
 148   virtual std::string GetSource() const OVERRIDE;
 149   virtual void StartDataRequest(
 150       const std::string& path,
 151       int render_process_id,
 152       int render_frame_id,
 153       const content::URLDataSource::GotDataCallback& callback) OVERRIDE;
 154   virtual std::string GetMimeType(const std::string&) const OVERRIDE {
 155     return "text/html";
 156   }
 157   virtual bool ShouldAddContentSecurityPolicy() const OVERRIDE {
 158     return false;
 159   }
 160
 161  private:
 162   virtual ~MobileSetupUIHTMLSource() {}
 163
 164   void GetPropertiesAndStartDataRequest(
 165       const content::URLDataSource::GotDataCallback& callback,
 166       const std::string& service_path,
 167       const base::DictionaryValue& properties);
 168   void GetPropertiesFailure(
 169       const content::URLDataSource::GotDataCallback& callback,
 170       const std::string& service_path,
 171       const std::string& error_name,
 172       scoped_ptr<base::DictionaryValue> error_data);
 173
 174   base::WeakPtrFactory<MobileSetupUIHTMLSource> weak_ptr_factory_;
 175
 176   DISALLOW_COPY_AND_ASSIGN(MobileSetupUIHTMLSource);
 177 };
 178
 179 // The handler for Javascript messages related to the "register" view.
 180 class MobileSetupHandler
 181   : public WebUIMessageHandler,
 182     public MobileActivator::Observer,
 183     public chromeos::NetworkStateHandlerObserver,
 184     public base::SupportsWeakPtr<MobileSetupHandler> {
 185  public:
 186   MobileSetupHandler();
 187   virtual ~MobileSetupHandler();
 188
 189   // WebUIMessageHandler implementation.
 190   virtual void RegisterMessages() OVERRIDE;
 191
 192  private:
 193   enum Type {
 194     TYPE_UNDETERMINED,
 195     // The network is not yet activated, and the webui is in activation flow.
 196     TYPE_ACTIVATION,
 197     // The network is activated, the webui displays network portal.
 198     TYPE_PORTAL,
 199     // Same as TYPE_PORTAL, but the network technology is LTE. The webui is
 200     // additionally aware of network manager state and whether the portal can be
 201     // reached.
 202     TYPE_PORTAL_LTE
 203   };
 204
 205   // MobileActivator::Observer.
 206   virtual void OnActivationStateChanged(
 207       const NetworkState* network,
 208       MobileActivator::PlanActivationState new_state,
 209       const std::string& error_description) OVERRIDE;
 210
 211   // Callbacks for NetworkConfigurationHandler::GetProperties.
 212   void GetPropertiesAndCallStatusChanged(
 213       MobileActivator::PlanActivationState state,
 214       const std::string& error_description,
 215       const std::string& service_path,
 216       const base::DictionaryValue& properties);
 217   void GetPropertiesAndCallGetDeviceInfo(
 218       const std::string& service_path,
 219       const base::DictionaryValue& properties);
 220   void GetPropertiesFailure(
 221       const std::string& service_path,
 222       const std::string& callback_name,
 223       const std::string& error_name,
 224       scoped_ptr<base::DictionaryValue> error_data);
 225
 226   // Handlers for JS WebUI messages.
 227   void HandleSetTransactionStatus(const base::ListValue* args);
 228   void HandleStartActivation(const base::ListValue* args);
 229   void HandlePaymentPortalLoad(const base::ListValue* args);
 230   void HandleGetDeviceInfo(const base::ListValue* args);
 231
 232   // NetworkStateHandlerObserver implementation.
 233   virtual void NetworkConnectionStateChanged(
 234       const NetworkState* network) OVERRIDE;
 235   virtual void DefaultNetworkChanged(
 236       const NetworkState* default_network) OVERRIDE;
 237
 238   // Updates |lte_portal_reachable_| for lte network |network| and notifies
 239   // webui of the new state if the reachability changed or |force_notification|
 240   // is set.
 241   void UpdatePortalReachability(const NetworkState* network,
 242                                 bool force_notification);
 243
 244   // Sends message to host registration page with system/user info data.
 245   void SendDeviceInfo();
 246
 247   // Type of the mobilesetup webui deduced from received messages.
 248   Type type_;
 249   // Whether portal page for lte networks can be reached in current network
 250   // connection state. This value is reflected in portal webui for lte networks.
 251   // Initial value is true.
 252   bool lte_portal_reachable_;
 253   base::WeakPtrFactory<MobileSetupHandler> weak_ptr_factory_;
 254
 255   DISALLOW_COPY_AND_ASSIGN(MobileSetupHandler);
 256 };
 257
 258 ////////////////////////////////////////////////////////////////////////////////
 259 //
 260 // MobileSetupUIHTMLSource
 261 //
 262 ////////////////////////////////////////////////////////////////////////////////
 263
 264 MobileSetupUIHTMLSource::MobileSetupUIHTMLSource()
 265     : weak_ptr_factory_(this) {
 266 }
 267
 268 std::string MobileSetupUIHTMLSource::GetSource() const {
 269   return chrome::kChromeUIMobileSetupHost;
 270 }
 271
 272 void MobileSetupUIHTMLSource::StartDataRequest(
 273     const std::string& path,
 274     int render_process_id,
 275     int render_frame_id,
 276     const content::URLDataSource::GotDataCallback& callback) {
 277   NetworkHandler::Get()->network_configuration_handler()->GetProperties(
 278       path,
 279       base::Bind(&MobileSetupUIHTMLSource::GetPropertiesAndStartDataRequest,
 280                  weak_ptr_factory_.GetWeakPtr(),
 281                  callback),
 282       base::Bind(&MobileSetupUIHTMLSource::GetPropertiesFailure,
 283                  weak_ptr_factory_.GetWeakPtr(),
 284                  callback, path));
 285 }
 286
 287 void MobileSetupUIHTMLSource::GetPropertiesAndStartDataRequest(
 288     const content::URLDataSource::GotDataCallback& callback,
 289     const std::string& service_path,
 290     const base::DictionaryValue& properties) {
 291   const base::DictionaryValue* payment_dict;
 292   std::string name, usage_url, activation_state, payment_url;
 293   if (!properties.GetStringWithoutPathExpansion(
 294           shill::kNameProperty, &name) ||
 295       !properties.GetStringWithoutPathExpansion(
 296           shill::kUsageURLProperty, &usage_url) ||
 297       !properties.GetStringWithoutPathExpansion(
 298           shill::kActivationStateProperty, &activation_state) ||
 299       !properties.GetDictionaryWithoutPathExpansion(
 300           shill::kPaymentPortalProperty, &payment_dict) ||
 301       !payment_dict->GetStringWithoutPathExpansion(
 302           shill::kPaymentPortalURL, &payment_url)) {
 303     DataRequestFailed(service_path, callback);
 304     return;
 305   }
 306
 307   if (payment_url.empty() && usage_url.empty() &&
 308       activation_state != shill::kActivationStateActivated) {
 309     DataRequestFailed(service_path, callback);
 310     return;
 311   }
 312
 313   NET_LOG_EVENT("Starting mobile setup", service_path);
 314   base::DictionaryValue strings;
 315
 316   strings.SetString("connecting_header",
 317                     l10n_util::GetStringFUTF16(IDS_MOBILE_CONNECTING_HEADER,
 318                                                base::UTF8ToUTF16(name)));
 319   strings.SetString("error_header",
 320                     l10n_util::GetStringUTF16(IDS_MOBILE_ERROR_HEADER));
 321   strings.SetString("activating_header",
 322                     l10n_util::GetStringUTF16(IDS_MOBILE_ACTIVATING_HEADER));
 323   strings.SetString("completed_header",
 324                     l10n_util::GetStringUTF16(IDS_MOBILE_COMPLETED_HEADER));
 325   strings.SetString("please_wait",
 326                     l10n_util::GetStringUTF16(IDS_MOBILE_PLEASE_WAIT));
 327   strings.SetString("completed_text",
 328                     l10n_util::GetStringUTF16(IDS_MOBILE_COMPLETED_TEXT));
 329   strings.SetString("portal_unreachable_header",
 330                     l10n_util::GetStringUTF16(IDS_MOBILE_NO_CONNECTION_HEADER));
 331   strings.SetString("invalid_device_info_header",
 332       l10n_util::GetStringUTF16(IDS_MOBILE_INVALID_DEVICE_INFO_HEADER));
 333   strings.SetString("title", l10n_util::GetStringUTF16(IDS_MOBILE_SETUP_TITLE));
 334   strings.SetString("close_button",
 335                     l10n_util::GetStringUTF16(IDS_CLOSE));
 336   strings.SetString("cancel_button",
 337                     l10n_util::GetStringUTF16(IDS_CANCEL));
 338   strings.SetString("ok_button",
 339                     l10n_util::GetStringUTF16(IDS_OK));
 340   webui::SetFontAndTextDirection(&strings);
 341
 342   // The webui differs based on whether the network is activated or not. If the
 343   // network is activated, the webui goes straight to portal. Otherwise the
 344   // webui is used for activation flow.
 345   std::string full_html;
 346   if (activation_state == shill::kActivationStateActivated) {
 347     static const base::StringPiece html_for_activated(
 348         ResourceBundle::GetSharedInstance().GetRawDataResource(
 349             IDR_MOBILE_SETUP_PORTAL_PAGE_HTML));
 350     full_html = webui::GetI18nTemplateHtml(html_for_activated, &strings);
 351   } else {
 352     static const base::StringPiece html_for_non_activated(
 353         ResourceBundle::GetSharedInstance().GetRawDataResource(
 354             IDR_MOBILE_SETUP_PAGE_HTML));
 355     full_html = webui::GetI18nTemplateHtml(html_for_non_activated, &strings);
 356   }
 357
 358   callback.Run(base::RefCountedString::TakeString(&full_html));
 359 }
 360
 361 void MobileSetupUIHTMLSource::GetPropertiesFailure(
 362     const content::URLDataSource::GotDataCallback& callback,
 363     const std::string& service_path,
 364     const std::string& error_name,
 365     scoped_ptr<base::DictionaryValue> error_data) {
 366   DataRequestFailed(service_path, callback);
 367 }
 368
 369 ////////////////////////////////////////////////////////////////////////////////
 370 //
 371 // MobileSetupHandler
 372 //
 373 ////////////////////////////////////////////////////////////////////////////////
 374 MobileSetupHandler::MobileSetupHandler()
 375     : type_(TYPE_UNDETERMINED),
 376       lte_portal_reachable_(true),
 377       weak_ptr_factory_(this) {
 378 }
 379
 380 MobileSetupHandler::~MobileSetupHandler() {
 381   if (type_ == TYPE_ACTIVATION) {
 382     MobileActivator::GetInstance()->RemoveObserver(this);
 383     MobileActivator::GetInstance()->TerminateActivation();
 384   } else if (type_ == TYPE_PORTAL_LTE) {
 385     NetworkHandler::Get()->network_state_handler()->RemoveObserver(this,
 386                                                                    FROM_HERE);
 387   }
 388 }
 389
 390 void MobileSetupHandler::OnActivationStateChanged(
 391     const NetworkState* network,
 392     MobileActivator::PlanActivationState state,
 393     const std::string& error_description) {
 394   DCHECK_EQ(TYPE_ACTIVATION, type_);
 395   if (!web_ui())
 396     return;
 397
 398   if (!network) {
 399     base::DictionaryValue device_dict;
 400     SetActivationStateAndError(state, error_description, &device_dict);
 401     web_ui()->CallJavascriptFunction(kJsDeviceStatusChangedCallback,
 402                                      device_dict);
 403     return;
 404   }
 405
 406   NetworkHandler::Get()->network_configuration_handler()->GetProperties(
 407       network->path(),
 408       base::Bind(&MobileSetupHandler::GetPropertiesAndCallStatusChanged,
 409                  weak_ptr_factory_.GetWeakPtr(),
 410                  state,
 411                  error_description),
 412       base::Bind(&MobileSetupHandler::GetPropertiesFailure,
 413                  weak_ptr_factory_.GetWeakPtr(),
 414                  network->path(),
 415                  kJsDeviceStatusChangedCallback));
 416 }
 417
 418 void MobileSetupHandler::GetPropertiesAndCallStatusChanged(
 419     MobileActivator::PlanActivationState state,
 420     const std::string& error_description,
 421     const std::string& service_path,
 422     const base::DictionaryValue& properties) {
 423   base::DictionaryValue device_dict;
 424   GetDeviceInfo(properties, &device_dict);
 425   SetActivationStateAndError(state, error_description, &device_dict);
 426   web_ui()->CallJavascriptFunction(kJsDeviceStatusChangedCallback, device_dict);
 427 }
 428
 429 void MobileSetupHandler::RegisterMessages() {
 430   web_ui()->RegisterMessageCallback(kJsApiStartActivation,
 431       base::Bind(&MobileSetupHandler::HandleStartActivation,
 432                  base::Unretained(this)));
 433   web_ui()->RegisterMessageCallback(kJsApiSetTransactionStatus,
 434       base::Bind(&MobileSetupHandler::HandleSetTransactionStatus,
 435                  base::Unretained(this)));
 436   web_ui()->RegisterMessageCallback(kJsApiPaymentPortalLoad,
 437       base::Bind(&MobileSetupHandler::HandlePaymentPortalLoad,
 438                  base::Unretained(this)));
 439   web_ui()->RegisterMessageCallback(kJsGetDeviceInfo,
 440       base::Bind(&MobileSetupHandler::HandleGetDeviceInfo,
 441                  base::Unretained(this)));
 442 }
 443
 444 void MobileSetupHandler::HandleStartActivation(const base::ListValue* args) {
 445   DCHECK_EQ(TYPE_UNDETERMINED, type_);
 446
 447   if (!web_ui())
 448     return;
 449
 450   std::string path = web_ui()->GetWebContents()->GetURL().path();
 451   if (!path.size())
 452     return;
 453
 454   LOG(WARNING) << "Starting activation for service " << path;
 455
 456   type_ = TYPE_ACTIVATION;
 457   MobileActivator::GetInstance()->AddObserver(this);
 458   MobileActivator::GetInstance()->InitiateActivation(path.substr(1));
 459 }
 460
 461 void MobileSetupHandler::HandleSetTransactionStatus(
 462     const base::ListValue* args) {
 463   DCHECK_EQ(TYPE_ACTIVATION, type_);
 464   if (!web_ui())
 465     return;
 466
 467   const size_t kSetTransactionStatusParamCount = 1;
 468   if (args->GetSize() != kSetTransactionStatusParamCount)
 469     return;
 470   // Get change callback function name.
 471   std::string status;
 472   if (!args->GetString(0, &status))
 473     return;
 474
 475   MobileActivator::GetInstance()->OnSetTransactionStatus(
 476       LowerCaseEqualsASCII(status, kJsApiResultOK));
 477 }
 478
 479 void MobileSetupHandler::HandlePaymentPortalLoad(const base::ListValue* args) {
 480   // Only activation flow webui is interested in these events.
 481   if (type_ != TYPE_ACTIVATION || !web_ui())
 482     return;
 483
 484   const size_t kPaymentPortalLoadParamCount = 1;
 485   if (args->GetSize() != kPaymentPortalLoadParamCount)
 486     return;
 487   // Get change callback function name.
 488   std::string result;
 489   if (!args->GetString(0, &result))
 490     return;
 491
 492   MobileActivator::GetInstance()->OnPortalLoaded(
 493       LowerCaseEqualsASCII(result, kJsApiResultOK));
 494 }
 495
 496 void MobileSetupHandler::HandleGetDeviceInfo(const base::ListValue* args) {
 497   DCHECK_NE(TYPE_ACTIVATION, type_);
 498   if (!web_ui())
 499     return;
 500
 501   std::string path = web_ui()->GetWebContents()->GetURL().path();
 502   if (path.empty())
 503     return;
 504
 505   chromeos::NetworkStateHandler* nsh =
 506       NetworkHandler::Get()->network_state_handler();
 507   // TODO: Figure out why the path has an extra '/' in the front. (e.g. It is
 508   // '//service/5' instead of '/service/5'.
 509   const NetworkState* network = nsh->GetNetworkState(path.substr(1));
 510   if (!network) {
 511     web_ui()->GetWebContents()->Close();
 512     return;
 513   }
 514
 515   // If this is the initial call, update the network status and start observing
 516   // network changes, but only for LTE networks. The other networks should
 517   // ignore network status.
 518   if (type_ == TYPE_UNDETERMINED) {
 519     if (network->network_technology() == shill::kNetworkTechnologyLte ||
 520         network->network_technology() == shill::kNetworkTechnologyLteAdvanced) {
 521       type_ = TYPE_PORTAL_LTE;
 522       nsh->AddObserver(this, FROM_HERE);
 523       // Update the network status and notify the webui. This is the initial
 524       // network state so the webui should be notified no matter what.
 525       UpdatePortalReachability(network,
 526                                true /* force notification */);
 527     } else {
 528       type_ = TYPE_PORTAL;
 529       // For non-LTE networks network state is ignored, so report the portal is
 530       // reachable, so it gets shown.
 531       web_ui()->CallJavascriptFunction(kJsConnectivityChangedCallback,
 532                                        base::FundamentalValue(true));
 533     }
 534   }
 535
 536   NetworkHandler::Get()->network_configuration_handler()->GetProperties(
 537       network->path(),
 538       base::Bind(&MobileSetupHandler::GetPropertiesAndCallGetDeviceInfo,
 539                  weak_ptr_factory_.GetWeakPtr()),
 540       base::Bind(&MobileSetupHandler::GetPropertiesFailure,
 541                  weak_ptr_factory_.GetWeakPtr(),
 542                  network->path(),
 543                  kJsGetDeviceInfoCallback));
 544 }
 545
 546 void MobileSetupHandler::GetPropertiesAndCallGetDeviceInfo(
 547     const std::string& service_path,
 548     const base::DictionaryValue& properties) {
 549   base::DictionaryValue device_info;
 550   GetDeviceInfo(properties, &device_info);
 551   web_ui()->CallJavascriptFunction(kJsGetDeviceInfoCallback, device_info);
 552 }
 553
 554 void MobileSetupHandler::GetPropertiesFailure(
 555     const std::string& service_path,
 556     const std::string& callback_name,
 557     const std::string& error_name,
 558     scoped_ptr<base::DictionaryValue> error_data) {
 559   NET_LOG_ERROR("MobileActivator GetProperties Failed: " + error_name,
 560                 service_path);
 561   // Invoke |callback_name| with an empty dictionary.
 562   base::DictionaryValue device_dict;
 563   web_ui()->CallJavascriptFunction(callback_name, device_dict);
 564 }
 565
 566 void MobileSetupHandler::DefaultNetworkChanged(
 567     const NetworkState* default_network) {
 568   if (!web_ui())
 569     return;
 570
 571   std::string path = web_ui()->GetWebContents()->GetURL().path().substr(1);
 572   if (path.empty())
 573     return;
 574
 575   const NetworkState* network =
 576       NetworkHandler::Get()->network_state_handler()->GetNetworkState(path);
 577   if (!network) {
 578     LOG(ERROR) << "Service path lost";
 579     web_ui()->GetWebContents()->Close();
 580     return;
 581   }
 582
 583   UpdatePortalReachability(network, false /* do not force notification */);
 584 }
 585
 586 void MobileSetupHandler::NetworkConnectionStateChanged(
 587     const NetworkState* network) {
 588   if (!web_ui())
 589     return;
 590
 591   std::string path = web_ui()->GetWebContents()->GetURL().path().substr(1);
 592   if (path.empty() || path != network->path())
 593     return;
 594
 595   UpdatePortalReachability(network, false /* do not force notification */);
 596 }
 597
 598 void MobileSetupHandler::UpdatePortalReachability(
 599     const NetworkState* network,
 600     bool force_notification) {
 601   DCHECK(web_ui());
 602
 603   DCHECK_EQ(type_, TYPE_PORTAL_LTE);
 604
 605   chromeos::NetworkStateHandler* nsh =
 606       NetworkHandler::Get()->network_state_handler();
 607   bool portal_reachable =
 608       (network->IsConnectedState() ||
 609        (nsh->DefaultNetwork() &&
 610         nsh->DefaultNetwork()->connection_state() == shill::kStateOnline));
 611
 612   if (force_notification || portal_reachable != lte_portal_reachable_) {
 613     web_ui()->CallJavascriptFunction(kJsConnectivityChangedCallback,
 614                                      base::FundamentalValue(portal_reachable));
 615   }
 616
 617   lte_portal_reachable_ = portal_reachable;
 618 }
 619
 620 ////////////////////////////////////////////////////////////////////////////////
 621 //
 622 // MobileSetupUI
 623 //
 624 ////////////////////////////////////////////////////////////////////////////////
 625
 626 MobileSetupUI::MobileSetupUI(content::WebUI* web_ui)
 627     : WebUIController(web_ui) {
 628   web_ui->AddMessageHandler(new MobileSetupHandler());
 629   MobileSetupUIHTMLSource* html_source = new MobileSetupUIHTMLSource();
 630
 631   // Set up the chrome://mobilesetup/ source.
 632   Profile* profile = Profile::FromWebUI(web_ui);
 633   content::URLDataSource::Add(profile, html_source);
 634
 635   content::WebContentsObserver::Observe(web_ui->GetWebContents());
 636 }
 637
 638 void MobileSetupUI::DidCommitProvisionalLoadForFrame(
 639     content::RenderFrameHost* render_frame_host,
 640     const GURL& url,
 641     content::PageTransition transition_type) {
 642   if (render_frame_host->GetFrameName() != "paymentForm")
 643     return;
 644
 645   web_ui()->CallJavascriptFunction(
 646         kJsPortalFrameLoadCompletedCallback);
 647 }
 648
 649 void MobileSetupUI::DidFailProvisionalLoad(
 650     content::RenderFrameHost* render_frame_host,
 651     const GURL& validated_url,
 652     int error_code,
 653     const base::string16& error_description) {
 654   if (render_frame_host->GetFrameName() != "paymentForm")
 655     return;
 656
 657   base::FundamentalValue result_value(-error_code);
 658   web_ui()->CallJavascriptFunction(kJsPortalFrameLoadFailedCallback,
 659                                    result_value);
 660 }