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