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
  21 namespace base {
  22 class DictionaryValue;
  23 }
  24
  25 namespace chromeos {
  26
  27 class NetworkConnectionHandler;
  28 class NetworkState;
  29 class NetworkStateHandler;
  30 class TestMobileActivator;
  31
  32 // Cellular plan config document.
  33 class CellularConfigDocument
  34     : public base::RefCountedThreadSafe<CellularConfigDocument> {
  35  public:
  36   CellularConfigDocument();
  37
  38   // Return error message for a given code.
  39   std::string GetErrorMessage(const std::string& code);
  40   void LoadCellularConfigFile();
  41   const std::string& version() { return version_; }
  42
  43  private:
  44   friend class base::RefCountedThreadSafe<CellularConfigDocument>;
  45   typedef std::map<std::string, std::string> ErrorMap;
  46
  47   virtual ~CellularConfigDocument();
  48
  49   void SetErrorMap(const ErrorMap& map);
  50   bool LoadFromFile(const base::FilePath& config_path);
  51
  52   std::string version_;
  53   ErrorMap error_map_;
  54   base::Lock config_lock_;
  55
  56   DISALLOW_COPY_AND_ASSIGN(CellularConfigDocument);
  57 };
  58
  59 // This class performs mobile plan activation process.
  60 //
  61 // There are two types of activation flow:
  62 //
  63 //   1. Over-the-air Service Provision (OTASP) activation
  64 //      a. Call shill Activate() to partially activate modem so it can
  65 //         connect to the network.
  66 //      b. Enable auto-connect on the modem so it will connect to the network
  67 //         in the next step.
  68 //      c. Call shill Activate() again which resets the modem, when the modem
  69 //         comes back, it will auto-connect to the network.
  70 //      d. Navigate to the payment portal.
  71 //      e. Activate the modem using OTASP via shill Activate().
  72 //
  73 //   2. Simple activation - used by non-cellular activation and over-the-air
  74 //      (OTA) activation.
  75 //      a. Ensure there's a network connection.
  76 //      a. Navigate to payment portal.
  77 //      b. Activate the modem via shill CompletetActivation().
  78 class MobileActivator
  79     : public base::SupportsWeakPtr<MobileActivator>,
  80       public NetworkStateHandlerObserver {
  81  public:
  82   // Activation state.
  83   enum PlanActivationState {
  84     // Activation WebUI page is loading, activation not started.
  85     PLAN_ACTIVATION_PAGE_LOADING            = -1,
  86     // Activation process started.
  87     PLAN_ACTIVATION_START                   = 0,
  88     // Initial over the air activation attempt.
  89     PLAN_ACTIVATION_TRYING_OTASP            = 1,
  90     // Performing pre-activation process.
  91     PLAN_ACTIVATION_INITIATING_ACTIVATION   = 3,
  92     // Reconnecting to network. Used for networks activated over cellular
  93     // connection.
  94     PLAN_ACTIVATION_RECONNECTING            = 4,
  95     // Passively waiting for a network connection. Used for networks activated
  96     // over non-cellular network.
  97     PLAN_ACTIVATION_WAITING_FOR_CONNECTION  = 5,
  98     // Loading payment portal page.
  99     PLAN_ACTIVATION_PAYMENT_PORTAL_LOADING  = 6,
 100     // Showing payment portal page.
 101     PLAN_ACTIVATION_SHOWING_PAYMENT         = 7,
 102     // Decides whether to load the portal again or call us done.
 103     PLAN_ACTIVATION_RECONNECTING_PAYMENT    = 8,
 104     // Delaying activation until payment portal catches up.
 105     PLAN_ACTIVATION_DELAY_OTASP             = 9,
 106     // Starting post-payment activation attempt.
 107     PLAN_ACTIVATION_START_OTASP             = 10,
 108     // Attempting activation.
 109     PLAN_ACTIVATION_OTASP                   = 11,
 110     // Finished activation.
 111     PLAN_ACTIVATION_DONE                    = 12,
 112     // Error occured during activation process.
 113     PLAN_ACTIVATION_ERROR                   = 0xFF,
 114   };
 115
 116   // Activation process observer.
 117   class Observer {
 118    public:
 119     // Signals activation |state| change for given |network|.
 120     virtual void OnActivationStateChanged(
 121         const NetworkState* network,
 122         PlanActivationState state,
 123         const std::string& error_description) = 0;
 124
 125    protected:
 126     Observer() {}
 127     virtual ~Observer() {}
 128   };
 129
 130   static MobileActivator* GetInstance();
 131
 132   // Add/remove activation process observer.
 133   void AddObserver(Observer* observer);
 134   void RemoveObserver(Observer* observer);
 135
 136   // Activation is in process.
 137   bool RunningActivation() const;
 138   // Activation state.
 139   PlanActivationState state() const { return state_; }
 140   // Initiates activation process.  Can only be called from the UI thread.
 141   void InitiateActivation(const std::string& service_path);
 142   // Terminates activation process if already started.
 143   void TerminateActivation();
 144   // Process portal load attempt status.
 145   void OnPortalLoaded(bool success);
 146   // Process payment transaction status.
 147   void OnSetTransactionStatus(bool success);
 148
 149  protected:
 150   // For unit tests.
 151   void set_state_for_test(PlanActivationState state) {
 152     state_ = state;
 153   }
 154   virtual const NetworkState* GetNetworkState(const std::string& service_path);
 155   virtual const NetworkState* GetDefaultNetwork();
 156
 157  private:
 158   friend struct DefaultSingletonTraits<MobileActivator>;
 159   friend class TestMobileActivator;
 160   friend class MobileActivatorTest;
 161
 162   MobileActivator();
 163   ~MobileActivator() override;
 164
 165   // NetworkStateHandlerObserver overrides.
 166   void DefaultNetworkChanged(const NetworkState* network) override;
 167   void NetworkPropertiesUpdated(const NetworkState* network) override;
 168
 169   // Continue activation after inital setup (config load). Makes an
 170   // asynchronous call to NetworkConfigurationHandler::GetProperties.
 171   void ContinueActivation();
 172   void GetPropertiesAndContinueActivation(
 173       const std::string& service_path,
 174       const base::DictionaryValue& properties);
 175   void GetPropertiesFailure(const std::string& error_name,
 176                             scoped_ptr<base::DictionaryValue> error_data);
 177   // Handles the signal that the payment portal has finished loading.
 178   void HandlePortalLoaded(bool success);
 179   // Handles the signal that the user has finished with the portal.
 180   void HandleSetTransactionStatus(bool success);
 181   // Starts activation.
 182   void StartActivation();
 183   // Starts activation over non-cellular network.
 184   void StartActivationOverNonCellularNetwork();
 185   // Starts OTA activation.
 186   void StartActivationOTA();
 187   // Starts OTASP activation.
 188   void StartActivationOTASP();
 189   // Called after we delay our OTASP (after payment).
 190   void RetryOTASP();
 191   // Continues activation process. This method is called after we disconnect
 192   // due to detected connectivity issue to kick off reconnection.
 193   void ContinueConnecting();
 194
 195   // Sends message to host registration page with system/user info data.
 196   void SendDeviceInfo();
 197
 198   // Starts OTASP process.
 199   void StartOTASP();
 200   // Called when an OTASP attempt times out.
 201   void HandleOTASPTimeout();
 202   // Connect to network.
 203   virtual void ConnectNetwork(const NetworkState* network);
 204   // Forces disconnect / reconnect when we detect portal connectivity issues.
 205   void ForceReconnect(const NetworkState* network,
 206                       PlanActivationState next_state);
 207   // Called when ForceReconnect takes too long to reconnect.
 208   void ReconnectTimedOut();
 209
 210   // Called on default network changes to update cellular network activation
 211   // state.
 212   void RefreshCellularNetworks();
 213
 214   // Verify the state of cellular network and modify internal state.
 215   virtual void EvaluateCellularNetwork(const NetworkState* network);
 216   // PickNextState selects the desired state based on the current state of the
 217   // modem and the activator.  It does not transition to this state however.
 218   PlanActivationState PickNextState(const NetworkState* network,
 219                                     std::string* error_description) const;
 220   // One of PickNext*State are called in PickNextState based on whether the
 221   // modem is online or not.
 222   PlanActivationState PickNextOnlineState(const NetworkState* network) const;
 223   PlanActivationState PickNextOfflineState(const NetworkState* network) const;
 224   // Check the current cellular network for error conditions.
 225   bool GotActivationError(const NetworkState* network,
 226                           std::string* error) const;
 227   // Sends status updates to WebUI page.
 228   void UpdatePage(const NetworkState* network,
 229                   const std::string& error_description);
 230
 231   // Callback used to handle an activation error.
 232   void HandleActivationFailure(
 233       const std::string& service_path,
 234       PlanActivationState new_state,
 235       const std::string& error_name,
 236       scoped_ptr<base::DictionaryValue> error_data);
 237
 238   // Request cellular activation for |network|.
 239   // On success, |success_callback| will be called.
 240   // On failure, |error_callback| will be called.
 241   virtual void RequestCellularActivation(
 242       const NetworkState* network,
 243       const base::Closure& success_callback,
 244       const network_handler::ErrorCallback& error_callback);
 245
 246   // Changes internal state.
 247   virtual void ChangeState(const NetworkState* network,
 248                            PlanActivationState new_state,
 249                            std::string error_description);
 250   // Resets network devices after cellular activation process.
 251   void CompleteActivation();
 252   // Disables SSL certificate revocation checking mechanism. In the case
 253   // where captive portal connection is the only one present, such revocation
 254   // checks could prevent payment portal page from loading.
 255   void DisableCertRevocationChecking();
 256   // Reenables SSL certificate revocation checking mechanism.
 257   void ReEnableCertRevocationChecking();
 258   // Return error message for a given code.
 259   std::string GetErrorMessage(const std::string& code) const;
 260
 261   // Performs activation state cellular device evaluation.
 262   // Returns false if device activation failed. In this case |error|
 263   // will contain error message to be reported to Web UI.
 264   static bool EvaluateCellularDeviceState(bool* report_status,
 265                                           std::string* state,
 266                                           std::string* error);
 267   // Starts the OTASP timeout timer.  If the timer fires, we'll force a
 268   // disconnect/reconnect cycle on this network.
 269   virtual void StartOTASPTimer();
 270
 271   // Records information that cellular plan payment has happened.
 272   virtual void SignalCellularPlanPayment();
 273
 274   // Returns true if cellular plan payment has been recorded recently.
 275   virtual bool HasRecentCellularPlanPayment() const;
 276
 277   static const char* GetStateDescription(PlanActivationState state);
 278
 279   scoped_refptr<CellularConfigDocument> cellular_config_;
 280   // Internal handler state.
 281   PlanActivationState state_;
 282   // MEID of cellular device to activate.
 283   std::string meid_;
 284   // ICCID of the SIM card on cellular device to activate.
 285   std::string iccid_;
 286   // Service path of network being activated. Note that the path can change
 287   // during the activation process while still representing the same service.
 288   std::string service_path_;
 289   // Device on which the network service is activated. While the service path
 290   // can change during activation due to modem resets, the device path stays
 291   // the same.
 292   std::string device_path_;
 293   // Flags that controls if cert_checks needs to be restored
 294   // after the activation of cellular network.
 295   bool reenable_cert_check_;
 296   // True if activation process has been terminated.
 297   bool terminated_;
 298   // True if an asynchronous activation request was dispatched to Shill
 299   // but the succcess or failure of the request is yet unknown.
 300   bool pending_activation_request_;
 301   // Connection retry counter.
 302   int connection_retry_count_;
 303   // Counters for how many times we've tried each OTASP step.
 304   int initial_OTASP_attempts_;
 305   int trying_OTASP_attempts_;
 306   int final_OTASP_attempts_;
 307   // Payment portal reload/reconnect attempt count.
 308   int payment_reconnect_count_;
 309   // Timer that monitors how long we spend in error-prone states.
 310   base::RepeatingTimer<MobileActivator> state_duration_timer_;
 311
 312   // State we will return to if we are disconnected.
 313   PlanActivationState post_reconnect_state_;
 314   // Called to continue the reconnect attempt.
 315   base::RepeatingTimer<MobileActivator> continue_reconnect_timer_;
 316   // Called when the reconnect attempt times out.
 317   base::OneShotTimer<MobileActivator> reconnect_timeout_timer_;
 318   // Cellular plan payment time.
 319   base::Time cellular_plan_payment_time_;
 320
 321   ObserverList<Observer> observers_;
 322   base::WeakPtrFactory<MobileActivator> weak_ptr_factory_;
 323
 324   DISALLOW_COPY_AND_ASSIGN(MobileActivator);
 325 };
 326
 327 }  // namespace chromeos
 328
 329 #endif  // CHROME_BROWSER_CHROMEOS_MOBILE_MOBILE_ACTIVATOR_H_