chrome/browser/chromeos/mobile/mobile_activator.h

   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 #ifndef CHROME_BROWSER_CHROMEOS_MOBILE_MOBILE_ACTIVATOR_H_
   6 #define CHROME_BROWSER_CHROMEOS_MOBILE_MOBILE_ACTIVATOR_H_
   7
   8 #include <map>
   9 #include <string>
  10
  11 #include "base/files/file_path.h"
  12 #include "base/gtest_prod_util.h"
  13 #include "base/memory/scoped_ptr.h"
  14 #include "base/memory/singleton.h"
  15 #include "base/memory/weak_ptr.h"
  16 #include "base/observer_list.h"
  17 #include "base/timer/timer.h"
  18 #include "chromeos/network/network_handler_callbacks.h"
  19 #include "chromeos/network/network_state_handler_observer.h"
  20 #include "content/public/browser/browser_thread.h"
  21
  22 namespace base {
  23 class DictionaryValue;
  24 }
  25
  26 namespace chromeos {
  27
  28 class NetworkState;
  29 class TestMobileActivator;
  30
  31 // Cellular plan config document.
  32 class CellularConfigDocument
  33     : public base::RefCountedThreadSafe<CellularConfigDocument> {
  34  public:
  35   CellularConfigDocument();
  36
  37   // Return error message for a given code.
  38   std::string GetErrorMessage(const std::string& code);
  39   void LoadCellularConfigFile();
  40   const std::string& version() { return version_; }
  41
  42  private:
  43   friend class base::RefCountedThreadSafe<CellularConfigDocument>;
  44   typedef std::map<std::string, std::string> ErrorMap;
  45
  46   virtual ~CellularConfigDocument();
  47
  48   void SetErrorMap(const ErrorMap& map);
  49   bool LoadFromFile(const base::FilePath& config_path);
  50
  51   std::string version_;
  52   ErrorMap error_map_;
  53   base::Lock config_lock_;
  54
  55   DISALLOW_COPY_AND_ASSIGN(CellularConfigDocument);
  56 };
  57
  58 // This class performs mobile plan activation process.
  59 class MobileActivator
  60     : public base::SupportsWeakPtr<MobileActivator>,
  61       public NetworkStateHandlerObserver {
  62  public:
  63   // Activation state.
  64   enum PlanActivationState {
  65     // Activation WebUI page is loading, activation not started.
  66     PLAN_ACTIVATION_PAGE_LOADING            = -1,
  67     // Activation process started.
  68     PLAN_ACTIVATION_START                   = 0,
  69     // Initial over the air activation attempt.
  70     PLAN_ACTIVATION_TRYING_OTASP            = 1,
  71     // Performing pre-activation process.
  72     PLAN_ACTIVATION_INITIATING_ACTIVATION   = 3,
  73     // Reconnecting to network. Used for networks activated over cellular
  74     // connection.
  75     PLAN_ACTIVATION_RECONNECTING            = 4,
  76     // Passively waiting for a network connection. Used for networks activated
  77     // over non-cellular network.
  78     PLAN_ACTIVATION_WAITING_FOR_CONNECTION  = 5,
  79     // Loading payment portal page.
  80     PLAN_ACTIVATION_PAYMENT_PORTAL_LOADING  = 6,
  81     // Showing payment portal page.
  82     PLAN_ACTIVATION_SHOWING_PAYMENT         = 7,
  83     // Decides whether to load the portal again or call us done.
  84     PLAN_ACTIVATION_RECONNECTING_PAYMENT    = 8,
  85     // Delaying activation until payment portal catches up.
  86     PLAN_ACTIVATION_DELAY_OTASP             = 9,
  87     // Starting post-payment activation attempt.
  88     PLAN_ACTIVATION_START_OTASP             = 10,
  89     // Attempting activation.
  90     PLAN_ACTIVATION_OTASP                   = 11,
  91     // Finished activation.
  92     PLAN_ACTIVATION_DONE                    = 12,
  93     // Error occured during activation process.
  94     PLAN_ACTIVATION_ERROR                   = 0xFF,
  95   };
  96
  97   // Activation process observer.
  98   class Observer {
  99    public:
 100     // Signals activation |state| change for given |network|.
 101     virtual void OnActivationStateChanged(
 102         const NetworkState* network,
 103         PlanActivationState state,
 104         const std::string& error_description) = 0;
 105
 106    protected:
 107     Observer() {}
 108     virtual ~Observer() {}
 109   };
 110
 111   static MobileActivator* GetInstance();
 112
 113   // Add/remove activation process observer.
 114   void AddObserver(Observer* observer);
 115   void RemoveObserver(Observer* observer);
 116
 117   // Activation is in process.
 118   bool RunningActivation() const;
 119   // Activation state.
 120   PlanActivationState state() const { return state_; }
 121   // Initiates activation process.  Can only be called from the UI thread.
 122   void InitiateActivation(const std::string& service_path);
 123   // Terminates activation process if already started.
 124   void TerminateActivation();
 125   // Process portal load attempt status.
 126   void OnPortalLoaded(bool success);
 127   // Process payment transaction status.
 128   void OnSetTransactionStatus(bool success);
 129
 130  private:
 131   friend struct DefaultSingletonTraits<MobileActivator>;
 132   friend class TestMobileActivator;
 133   FRIEND_TEST_ALL_PREFIXES(MobileActivatorTest, BasicFlowForNewDevices);
 134   FRIEND_TEST_ALL_PREFIXES(MobileActivatorTest, OTASPScheduling);
 135   FRIEND_TEST_ALL_PREFIXES(MobileActivatorTest,
 136                            ReconnectOnDisconnectFromPaymentPortal);
 137   FRIEND_TEST_ALL_PREFIXES(MobileActivatorTest, StartAtStart);
 138   // We reach directly into the activator for testing purposes.
 139   friend class MobileActivatorTest;
 140
 141   MobileActivator();
 142   virtual ~MobileActivator();
 143
 144   // NetworkStateHandlerObserver overrides.
 145   virtual void DefaultNetworkChanged(const NetworkState* network) OVERRIDE;
 146   virtual void NetworkPropertiesUpdated(const NetworkState* network) OVERRIDE;
 147
 148   // Continue activation after inital setup (config load). Makes an
 149   // asynchronous call to NetworkConfigurationHandler::GetProperties.
 150   void ContinueActivation();
 151   void GetPropertiesAndContinueActivation(
 152       const std::string& service_path,
 153       const base::DictionaryValue& properties);
 154   void GetPropertiesFailure(const std::string& error_name,
 155                             scoped_ptr<base::DictionaryValue> error_data);
 156   // Handles the signal that the payment portal has finished loading.
 157   void HandlePortalLoaded(bool success);
 158   // Handles the signal that the user has finished with the portal.
 159   void HandleSetTransactionStatus(bool success);
 160   // Starts activation.
 161   void StartActivation();
 162   // Called after we delay our OTASP (after payment).
 163   void RetryOTASP();
 164   // Continues activation process. This method is called after we disconnect
 165   // due to detected connectivity issue to kick off reconnection.
 166   void ContinueConnecting();
 167
 168   // Sends message to host registration page with system/user info data.
 169   void SendDeviceInfo();
 170
 171   // Starts OTASP process.
 172   void StartOTASP();
 173   // Called when an OTASP attempt times out.
 174   void HandleOTASPTimeout();
 175   // Forces disconnect / reconnect when we detect portal connectivity issues.
 176   void ForceReconnect(const NetworkState* network,
 177                       PlanActivationState next_state);
 178   // Called when ForceReconnect takes too long to reconnect.
 179   void ReconnectTimedOut();
 180
 181   // Called on default network changes to update cellular network activation
 182   // state.
 183   void RefreshCellularNetworks();
 184
 185   // Helper to get network state corresponding to service path. Provided
 186   // for easy mocking in unit tests.
 187   virtual const NetworkState* GetNetworkState(const std::string& service_path);
 188
 189   // Verify the state of cellular network and modify internal state.
 190   virtual void EvaluateCellularNetwork(const NetworkState* network);
 191   // PickNextState selects the desired state based on the current state of the
 192   // modem and the activator.  It does not transition to this state however.
 193   PlanActivationState PickNextState(const NetworkState* network,
 194                                     std::string* error_description) const;
 195   // One of PickNext*State are called in PickNextState based on whether the
 196   // modem is online or not.
 197   PlanActivationState PickNextOnlineState(const NetworkState* network) const;
 198   PlanActivationState PickNextOfflineState(const NetworkState* network) const;
 199   // Check the current cellular network for error conditions.
 200   bool GotActivationError(const NetworkState* network,
 201                           std::string* error) const;
 202   // Sends status updates to WebUI page.
 203   void UpdatePage(const NetworkState* network,
 204                   const std::string& error_description);
 205
 206   // Callback used to handle an activation error.
 207   void HandleActivationFailure(
 208       const std::string& service_path,
 209       PlanActivationState new_state,
 210       const std::string& error_name,
 211       scoped_ptr<base::DictionaryValue> error_data);
 212
 213   // Request cellular activation for |network|.
 214   // On success, |success_callback| will be called.
 215   // On failure, |error_callback| will be called.
 216   virtual void RequestCellularActivation(
 217       const NetworkState* network,
 218       const base::Closure& success_callback,
 219       const network_handler::ErrorCallback& error_callback);
 220
 221   // Changes internal state.
 222   virtual void ChangeState(const NetworkState* network,
 223                            PlanActivationState new_state,
 224                            std::string error_description);
 225   // Resets network devices after cellular activation process.
 226   void CompleteActivation();
 227   // Disables SSL certificate revocation checking mechanism. In the case
 228   // where captive portal connection is the only one present, such revocation
 229   // checks could prevent payment portal page from loading.
 230   void DisableCertRevocationChecking();
 231   // Reenables SSL certificate revocation checking mechanism.
 232   void ReEnableCertRevocationChecking();
 233   // Return error message for a given code.
 234   std::string GetErrorMessage(const std::string& code) const;
 235
 236   // Performs activation state cellular device evaluation.
 237   // Returns false if device activation failed. In this case |error|
 238   // will contain error message to be reported to Web UI.
 239   static bool EvaluateCellularDeviceState(bool* report_status,
 240                                           std::string* state,
 241                                           std::string* error);
 242   // Starts the OTASP timeout timer.  If the timer fires, we'll force a
 243   // disconnect/reconnect cycle on this network.
 244   virtual void StartOTASPTimer();
 245
 246   // Records information that cellular plan payment has happened.
 247   virtual void SignalCellularPlanPayment();
 248
 249   // Returns true if cellular plan payment has been recorded recently.
 250   virtual bool HasRecentCellularPlanPayment() const;
 251
 252   static const char* GetStateDescription(PlanActivationState state);
 253
 254   scoped_refptr<CellularConfigDocument> cellular_config_;
 255   // Internal handler state.
 256   PlanActivationState state_;
 257   // MEID of cellular device to activate.
 258   std::string meid_;
 259   // ICCID of the SIM card on cellular device to activate.
 260   std::string iccid_;
 261   // Service path of network being activated. Note that the path can change
 262   // during the activation process while still representing the same service.
 263   std::string service_path_;
 264   // Device on which the network service is activated. While the service path
 265   // can change during activation due to modem resets, the device path stays
 266   // the same.
 267   std::string device_path_;
 268   // Flags that controls if cert_checks needs to be restored
 269   // after the activation of cellular network.
 270   bool reenable_cert_check_;
 271   // True if activation process has been terminated.
 272   bool terminated_;
 273   // True if an asynchronous activation request was dispatched to Shill
 274   // but the succcess or failure of the request is yet unknown.
 275   bool pending_activation_request_;
 276   // Connection retry counter.
 277   int connection_retry_count_;
 278   // Counters for how many times we've tried each OTASP step.
 279   int initial_OTASP_attempts_;
 280   int trying_OTASP_attempts_;
 281   int final_OTASP_attempts_;
 282   // Payment portal reload/reconnect attempt count.
 283   int payment_reconnect_count_;
 284   // Timer that monitors how long we spend in error-prone states.
 285   base::RepeatingTimer<MobileActivator> state_duration_timer_;
 286
 287   // State we will return to if we are disconnected.
 288   PlanActivationState post_reconnect_state_;
 289   // Called to continue the reconnect attempt.
 290   base::RepeatingTimer<MobileActivator> continue_reconnect_timer_;
 291   // Called when the reconnect attempt times out.
 292   base::OneShotTimer<MobileActivator> reconnect_timeout_timer_;
 293   // Cellular plan payment time.
 294   base::Time cellular_plan_payment_time_;
 295
 296   ObserverList<Observer> observers_;
 297   base::WeakPtrFactory<MobileActivator> weak_ptr_factory_;
 298
 299   DISALLOW_COPY_AND_ASSIGN(MobileActivator);
 300 };
 301
 302 }  // namespace chromeos
 303
 304 #endif  // CHROME_BROWSER_CHROMEOS_MOBILE_MOBILE_ACTIVATOR_H_