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()->GetProperties(
 272       path,
 273       base::Bind(&MobileSetupUIHTMLSource::GetPropertiesAndStartDataRequest,
 274                  weak_ptr_factory_.GetWeakPtr(),
 275                  callback),
 276       base::Bind(&MobileSetupUIHTMLSource::GetPropertiesFailure,
 277                  weak_ptr_factory_.GetWeakPtr(),
 278                  callback, path));
 279 }
 280
 281 void MobileSetupUIHTMLSource::GetPropertiesAndStartDataRequest(
 282     const content::URLDataSource::GotDataCallback& callback,
 283     const std::string& service_path,
 284     const base::DictionaryValue& properties) {
 285   const base::DictionaryValue* payment_dict;
 286   std::string name, usage_url, activation_state, payment_url;
 287   if (!properties.GetStringWithoutPathExpansion(
 288           shill::kNameProperty, &name) ||
 289       !properties.GetStringWithoutPathExpansion(
 290           shill::kUsageURLProperty, &usage_url) ||
 291       !properties.GetStringWithoutPathExpansion(
 292           shill::kActivationStateProperty, &activation_state) ||
 293       !properties.GetDictionaryWithoutPathExpansion(
 294           shill::kPaymentPortalProperty, &payment_dict) ||
 295       !payment_dict->GetStringWithoutPathExpansion(
 296           shill::kPaymentPortalURL, &payment_url)) {
 297     DataRequestFailed(service_path, callback);
 298     return;
 299   }
 300
 301   if (payment_url.empty() && usage_url.empty() &&
 302       activation_state != shill::kActivationStateActivated) {
 303     DataRequestFailed(service_path, callback);
 304     return;
 305   }
 306
 307   NET_LOG_EVENT("Starting mobile setup", service_path);
 308   base::DictionaryValue strings;
 309
 310   strings.SetString("connecting_header",
 311                     l10n_util::GetStringFUTF16(IDS_MOBILE_CONNECTING_HEADER,
 312                                                base::UTF8ToUTF16(name)));
 313   strings.SetString("error_header",
 314                     l10n_util::GetStringUTF16(IDS_MOBILE_ERROR_HEADER));
 315   strings.SetString("activating_header",
 316                     l10n_util::GetStringUTF16(IDS_MOBILE_ACTIVATING_HEADER));
 317   strings.SetString("completed_header",
 318                     l10n_util::GetStringUTF16(IDS_MOBILE_COMPLETED_HEADER));
 319   strings.SetString("please_wait",
 320                     l10n_util::GetStringUTF16(IDS_MOBILE_PLEASE_WAIT));
 321   strings.SetString("completed_text",
 322                     l10n_util::GetStringUTF16(IDS_MOBILE_COMPLETED_TEXT));
 323   strings.SetString("portal_unreachable_header",
 324                     l10n_util::GetStringUTF16(IDS_MOBILE_NO_CONNECTION_HEADER));
 325   strings.SetString("invalid_device_info_header",
 326       l10n_util::GetStringUTF16(IDS_MOBILE_INVALID_DEVICE_INFO_HEADER));
 327   strings.SetString("title", l10n_util::GetStringUTF16(IDS_MOBILE_SETUP_TITLE));
 328   strings.SetString("close_button",
 329                     l10n_util::GetStringUTF16(IDS_CLOSE));
 330   strings.SetString("cancel_button",
 331                     l10n_util::GetStringUTF16(IDS_CANCEL));
 332   strings.SetString("ok_button",
 333                     l10n_util::GetStringUTF16(IDS_OK));
 334
 335   const std::string& app_locale = g_browser_process->GetApplicationLocale();
 336   webui::SetLoadTimeDataDefaults(app_locale, &strings);
 337
 338   // The webui differs based on whether the network is activated or not. If the
 339   // network is activated, the webui goes straight to portal. Otherwise the
 340   // webui is used for activation flow.
 341   std::string full_html;
 342   if (activation_state == shill::kActivationStateActivated) {
 343     static const base::StringPiece html_for_activated(
 344         ResourceBundle::GetSharedInstance().GetRawDataResource(
 345             IDR_MOBILE_SETUP_PORTAL_PAGE_HTML));
 346     full_html = webui::GetI18nTemplateHtml(html_for_activated, &strings);
 347   } else {
 348     static const base::StringPiece html_for_non_activated(
 349         ResourceBundle::GetSharedInstance().GetRawDataResource(
 350             IDR_MOBILE_SETUP_PAGE_HTML));
 351     full_html = webui::GetI18nTemplateHtml(html_for_non_activated, &strings);
 352   }
 353
 354   callback.Run(base::RefCountedString::TakeString(&full_html));
 355 }
 356
 357 void MobileSetupUIHTMLSource::GetPropertiesFailure(
 358     const content::URLDataSource::GotDataCallback& callback,
 359     const std::string& service_path,
 360     const std::string& error_name,
 361     scoped_ptr<base::DictionaryValue> error_data) {
 362   DataRequestFailed(service_path, callback);
 363 }
 364
 365 ////////////////////////////////////////////////////////////////////////////////
 366 //
 367 // MobileSetupHandler
 368 //
 369 ////////////////////////////////////////////////////////////////////////////////
 370 MobileSetupHandler::MobileSetupHandler()
 371     : type_(TYPE_UNDETERMINED),
 372       lte_portal_reachable_(true),
 373       weak_ptr_factory_(this) {
 374 }
 375
 376 MobileSetupHandler::~MobileSetupHandler() {
 377   if (type_ == TYPE_ACTIVATION) {
 378     MobileActivator::GetInstance()->RemoveObserver(this);
 379     MobileActivator::GetInstance()->TerminateActivation();
 380   } else if (type_ == TYPE_PORTAL_LTE) {
 381     NetworkHandler::Get()->network_state_handler()->RemoveObserver(this,
 382                                                                    FROM_HERE);
 383   }
 384 }
 385
 386 void MobileSetupHandler::OnActivationStateChanged(
 387     const NetworkState* network,
 388     MobileActivator::PlanActivationState state,
 389     const std::string& error_description) {
 390   DCHECK_EQ(TYPE_ACTIVATION, type_);
 391   if (!web_ui())
 392     return;
 393
 394   if (!network) {
 395     base::DictionaryValue device_dict;
 396     SetActivationStateAndError(state, error_description, &device_dict);
 397     web_ui()->CallJavascriptFunction(kJsDeviceStatusChangedCallback,
 398                                      device_dict);
 399     return;
 400   }
 401
 402   NetworkHandler::Get()->network_configuration_handler()->GetProperties(
 403       network->path(),
 404       base::Bind(&MobileSetupHandler::GetPropertiesAndCallStatusChanged,
 405                  weak_ptr_factory_.GetWeakPtr(),
 406                  state,
 407                  error_description),
 408       base::Bind(&MobileSetupHandler::GetPropertiesFailure,
 409                  weak_ptr_factory_.GetWeakPtr(),
 410                  network->path(),
 411                  kJsDeviceStatusChangedCallback));
 412 }
 413
 414 void MobileSetupHandler::GetPropertiesAndCallStatusChanged(
 415     MobileActivator::PlanActivationState state,
 416     const std::string& error_description,
 417     const std::string& service_path,
 418     const base::DictionaryValue& properties) {
 419   base::DictionaryValue device_dict;
 420   GetDeviceInfo(properties, &device_dict);
 421   SetActivationStateAndError(state, error_description, &device_dict);
 422   web_ui()->CallJavascriptFunction(kJsDeviceStatusChangedCallback, device_dict);
 423 }
 424
 425 void MobileSetupHandler::RegisterMessages() {
 426   web_ui()->RegisterMessageCallback(kJsApiStartActivation,
 427       base::Bind(&MobileSetupHandler::HandleStartActivation,
 428                  base::Unretained(this)));
 429   web_ui()->RegisterMessageCallback(kJsApiSetTransactionStatus,
 430       base::Bind(&MobileSetupHandler::HandleSetTransactionStatus,
 431                  base::Unretained(this)));
 432   web_ui()->RegisterMessageCallback(kJsApiPaymentPortalLoad,
 433       base::Bind(&MobileSetupHandler::HandlePaymentPortalLoad,
 434                  base::Unretained(this)));
 435   web_ui()->RegisterMessageCallback(kJsGetDeviceInfo,
 436       base::Bind(&MobileSetupHandler::HandleGetDeviceInfo,
 437                  base::Unretained(this)));
 438 }
 439
 440 void MobileSetupHandler::HandleStartActivation(const base::ListValue* args) {
 441   DCHECK_EQ(TYPE_UNDETERMINED, type_);
 442
 443   if (!web_ui())
 444     return;
 445
 446   std::string path = web_ui()->GetWebContents()->GetURL().path();
 447   if (!path.size())
 448     return;
 449
 450   LOG(WARNING) << "Starting activation for service " << path;
 451
 452   type_ = TYPE_ACTIVATION;
 453   MobileActivator::GetInstance()->AddObserver(this);
 454   MobileActivator::GetInstance()->InitiateActivation(path.substr(1));
 455 }
 456
 457 void MobileSetupHandler::HandleSetTransactionStatus(
 458     const base::ListValue* args) {
 459   DCHECK_EQ(TYPE_ACTIVATION, type_);
 460   if (!web_ui())
 461     return;
 462
 463   const size_t kSetTransactionStatusParamCount = 1;
 464   if (args->GetSize() != kSetTransactionStatusParamCount)
 465     return;
 466   // Get change callback function name.
 467   std::string status;
 468   if (!args->GetString(0, &status))
 469     return;
 470
 471   MobileActivator::GetInstance()->OnSetTransactionStatus(
 472       LowerCaseEqualsASCII(status, kJsApiResultOK));
 473 }
 474
 475 void MobileSetupHandler::HandlePaymentPortalLoad(const base::ListValue* args) {
 476   // Only activation flow webui is interested in these events.
 477   if (type_ != TYPE_ACTIVATION || !web_ui())
 478     return;
 479
 480   const size_t kPaymentPortalLoadParamCount = 1;
 481   if (args->GetSize() != kPaymentPortalLoadParamCount)
 482     return;
 483   // Get change callback function name.
 484   std::string result;
 485   if (!args->GetString(0, &result))
 486     return;
 487
 488   MobileActivator::GetInstance()->OnPortalLoaded(
 489       LowerCaseEqualsASCII(result, kJsApiResultOK));
 490 }
 491
 492 void MobileSetupHandler::HandleGetDeviceInfo(const base::ListValue* args) {
 493   DCHECK_NE(TYPE_ACTIVATION, type_);
 494   if (!web_ui())
 495     return;
 496
 497   std::string path = web_ui()->GetWebContents()->GetURL().path();
 498   if (path.empty())
 499     return;
 500
 501   chromeos::NetworkStateHandler* nsh =
 502       NetworkHandler::Get()->network_state_handler();
 503   // TODO: Figure out why the path has an extra '/' in the front. (e.g. It is
 504   // '//service/5' instead of '/service/5'.
 505   const NetworkState* network = nsh->GetNetworkState(path.substr(1));
 506   if (!network) {
 507     web_ui()->GetWebContents()->Close();
 508     return;
 509   }
 510
 511   // If this is the initial call, update the network status and start observing
 512   // network changes, but only for LTE networks. The other networks should
 513   // ignore network status.
 514   if (type_ == TYPE_UNDETERMINED) {
 515     if (network->network_technology() == shill::kNetworkTechnologyLte ||
 516         network->network_technology() == shill::kNetworkTechnologyLteAdvanced) {
 517       type_ = TYPE_PORTAL_LTE;
 518       nsh->AddObserver(this, FROM_HERE);
 519       // Update the network status and notify the webui. This is the initial
 520       // network state so the webui should be notified no matter what.
 521       UpdatePortalReachability(network,
 522                                true /* force notification */);
 523     } else {
 524       type_ = TYPE_PORTAL;
 525       // For non-LTE networks network state is ignored, so report the portal is
 526       // reachable, so it gets shown.
 527       web_ui()->CallJavascriptFunction(kJsConnectivityChangedCallback,
 528                                        base::FundamentalValue(true));
 529     }
 530   }
 531
 532   NetworkHandler::Get()->network_configuration_handler()->GetProperties(
 533       network->path(),
 534       base::Bind(&MobileSetupHandler::GetPropertiesAndCallGetDeviceInfo,
 535                  weak_ptr_factory_.GetWeakPtr()),
 536       base::Bind(&MobileSetupHandler::GetPropertiesFailure,
 537                  weak_ptr_factory_.GetWeakPtr(),
 538                  network->path(),
 539                  kJsGetDeviceInfoCallback));
 540 }
 541
 542 void MobileSetupHandler::GetPropertiesAndCallGetDeviceInfo(
 543     const std::string& service_path,
 544     const base::DictionaryValue& properties) {
 545   base::DictionaryValue device_info;
 546   GetDeviceInfo(properties, &device_info);
 547   web_ui()->CallJavascriptFunction(kJsGetDeviceInfoCallback, device_info);
 548 }
 549
 550 void MobileSetupHandler::GetPropertiesFailure(
 551     const std::string& service_path,
 552     const std::string& callback_name,
 553     const std::string& error_name,
 554     scoped_ptr<base::DictionaryValue> error_data) {
 555   NET_LOG_ERROR("MobileActivator GetProperties Failed: " + error_name,
 556                 service_path);
 557   // Invoke |callback_name| with an empty dictionary.
 558   base::DictionaryValue device_dict;
 559   web_ui()->CallJavascriptFunction(callback_name, device_dict);
 560 }
 561
 562 void MobileSetupHandler::DefaultNetworkChanged(
 563     const NetworkState* default_network) {
 564   if (!web_ui())
 565     return;
 566
 567   std::string path = web_ui()->GetWebContents()->GetURL().path().substr(1);
 568   if (path.empty())
 569     return;
 570
 571   const NetworkState* network =
 572       NetworkHandler::Get()->network_state_handler()->GetNetworkState(path);
 573   if (!network) {
 574     LOG(ERROR) << "Service path lost";
 575     web_ui()->GetWebContents()->Close();
 576     return;
 577   }
 578
 579   UpdatePortalReachability(network, false /* do not force notification */);
 580 }
 581
 582 void MobileSetupHandler::NetworkConnectionStateChanged(
 583     const NetworkState* network) {
 584   if (!web_ui())
 585     return;
 586
 587   std::string path = web_ui()->GetWebContents()->GetURL().path().substr(1);
 588   if (path.empty() || path != network->path())
 589     return;
 590
 591   UpdatePortalReachability(network, false /* do not force notification */);
 592 }
 593
 594 void MobileSetupHandler::UpdatePortalReachability(
 595     const NetworkState* network,
 596     bool force_notification) {
 597   DCHECK(web_ui());
 598
 599   DCHECK_EQ(type_, TYPE_PORTAL_LTE);
 600
 601   chromeos::NetworkStateHandler* nsh =
 602       NetworkHandler::Get()->network_state_handler();
 603   bool portal_reachable =
 604       (network->IsConnectedState() ||
 605        (nsh->DefaultNetwork() &&
 606         nsh->DefaultNetwork()->connection_state() == shill::kStateOnline));
 607
 608   if (force_notification || portal_reachable != lte_portal_reachable_) {
 609     web_ui()->CallJavascriptFunction(kJsConnectivityChangedCallback,
 610                                      base::FundamentalValue(portal_reachable));
 611   }
 612
 613   lte_portal_reachable_ = portal_reachable;
 614 }
 615
 616 ////////////////////////////////////////////////////////////////////////////////
 617 //
 618 // MobileSetupUI
 619 //
 620 ////////////////////////////////////////////////////////////////////////////////
 621
 622 MobileSetupUI::MobileSetupUI(content::WebUI* web_ui)
 623     : WebUIController(web_ui) {
 624   web_ui->AddMessageHandler(new MobileSetupHandler());
 625   MobileSetupUIHTMLSource* html_source = new MobileSetupUIHTMLSource();
 626
 627   // Set up the chrome://mobilesetup/ source.
 628   Profile* profile = Profile::FromWebUI(web_ui);
 629   content::URLDataSource::Add(profile, html_source);
 630
 631   content::WebContentsObserver::Observe(web_ui->GetWebContents());
 632 }
 633
 634 void MobileSetupUI::DidCommitProvisionalLoadForFrame(
 635     content::RenderFrameHost* render_frame_host,
 636     const GURL& url,
 637     ui::PageTransition transition_type) {
 638   if (render_frame_host->GetFrameName() != "paymentForm")
 639     return;
 640
 641   web_ui()->CallJavascriptFunction(
 642         kJsPortalFrameLoadCompletedCallback);
 643 }
 644
 645 void MobileSetupUI::DidFailProvisionalLoad(
 646     content::RenderFrameHost* render_frame_host,
 647     const GURL& validated_url,
 648     int error_code,
 649     const base::string16& error_description) {
 650   if (render_frame_host->GetFrameName() != "paymentForm")
 651     return;
 652
 653   base::FundamentalValue result_value(-error_code);
 654   web_ui()->CallJavascriptFunction(kJsPortalFrameLoadFailedCallback,
 655                                    result_value);
 656 }