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