src/chrome/browser/chromeos/policy/device_status_collector.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_POLICY_DEVICE_STATUS_COLLECTOR_H_
   6 #define CHROME_BROWSER_CHROMEOS_POLICY_DEVICE_STATUS_COLLECTOR_H_
   7
   8 #include <string>
   9
  10 #include "base/basictypes.h"
  11 #include "base/callback_list.h"
  12 #include "base/compiler_specific.h"
  13 #include "base/memory/ref_counted.h"
  14 #include "base/memory/scoped_ptr.h"
  15 #include "base/memory/weak_ptr.h"
  16 #include "base/task/cancelable_task_tracker.h"
  17 #include "base/time/time.h"
  18 #include "base/timer/timer.h"
  19 #include "chrome/browser/chromeos/settings/cros_settings.h"
  20 #include "chrome/browser/chromeos/version_loader.h"
  21 #include "chrome/browser/idle.h"
  22 #include "components/policy/core/common/cloud/cloud_policy_client.h"
  23 #include "content/public/browser/geolocation_provider.h"
  24 #include "content/public/common/geoposition.h"
  25
  26 namespace chromeos {
  27 class CrosSettings;
  28 namespace system {
  29 class StatisticsProvider;
  30 }
  31 }
  32
  33 namespace content {
  34 class NotificationDetails;
  35 class NotificationSource;
  36 }
  37
  38 namespace enterprise_management {
  39 class DeviceStatusReportRequest;
  40 }
  41
  42 class PrefRegistrySimple;
  43 class PrefService;
  44
  45 namespace policy {
  46
  47 // Collects and summarizes the status of an enterprised-managed ChromeOS device.
  48 class DeviceStatusCollector : public CloudPolicyClient::StatusProvider {
  49  public:
  50   // TODO(bartfab): Remove this once crbug.com/125931 is addressed and a proper
  51   // way to mock geolocation exists.
  52   typedef base::Callback<void(
  53       const content::GeolocationProvider::LocationUpdateCallback& callback)>
  54           LocationUpdateRequester;
  55
  56   DeviceStatusCollector(
  57       PrefService* local_state,
  58       chromeos::system::StatisticsProvider* provider,
  59       LocationUpdateRequester* location_update_requester);
  60   virtual ~DeviceStatusCollector();
  61
  62   void GetStatus(enterprise_management::DeviceStatusReportRequest* request);
  63
  64   // CloudPolicyClient::StatusProvider:
  65   virtual bool GetDeviceStatus(
  66       enterprise_management::DeviceStatusReportRequest* status) OVERRIDE;
  67   virtual bool GetSessionStatus(
  68       enterprise_management::SessionStatusReportRequest* status) OVERRIDE;
  69   virtual void OnSubmittedSuccessfully() OVERRIDE;
  70
  71   static void RegisterPrefs(PrefRegistrySimple* registry);
  72
  73   // How often, in seconds, to poll to see if the user is idle.
  74   static const unsigned int kIdlePollIntervalSeconds = 30;
  75
  76  protected:
  77   // Check whether the user has been idle for a certain period of time.
  78   virtual void CheckIdleState();
  79
  80   // Used instead of base::Time::Now(), to make testing possible.
  81   virtual base::Time GetCurrentTime();
  82
  83   // Callback which receives the results of the idle state check.
  84   void IdleStateCallback(IdleState state);
  85
  86   // The number of days in the past to store device activity.
  87   // This is kept in case device status uploads fail for a number of days.
  88   unsigned int max_stored_past_activity_days_;
  89
  90   // The number of days in the future to store device activity.
  91   // When changing the system time and/or timezones, it's possible to record
  92   // activity time that is slightly in the future.
  93   unsigned int max_stored_future_activity_days_;
  94
  95  private:
  96   // Prevents the local store of activity periods from growing too large by
  97   // removing entries that are outside the reporting window.
  98   void PruneStoredActivityPeriods(base::Time base_time);
  99
 100   // Trims the store activity periods to only retain data within the
 101   // [|min_day_key|, |max_day_key|). The record for |min_day_key| will be
 102   // adjusted by subtracting |min_day_trim_duration|.
 103   void TrimStoredActivityPeriods(int64 min_day_key,
 104                                  int min_day_trim_duration,
 105                                  int64 max_day_key);
 106
 107   void AddActivePeriod(base::Time start, base::Time end);
 108
 109   // Callbacks from chromeos::VersionLoader.
 110   void OnOSVersion(const std::string& version);
 111   void OnOSFirmware(const std::string& version);
 112
 113   // Helpers for the various portions of the status.
 114   void GetActivityTimes(
 115       enterprise_management::DeviceStatusReportRequest* request);
 116   void GetVersionInfo(
 117       enterprise_management::DeviceStatusReportRequest* request);
 118   void GetBootMode(
 119       enterprise_management::DeviceStatusReportRequest* request);
 120   void GetLocation(
 121       enterprise_management::DeviceStatusReportRequest* request);
 122   void GetNetworkInterfaces(
 123       enterprise_management::DeviceStatusReportRequest* request);
 124   void GetUsers(
 125       enterprise_management::DeviceStatusReportRequest* request);
 126
 127   // Update the cached values of the reporting settings.
 128   void UpdateReportingSettings();
 129
 130   void ScheduleGeolocationUpdateRequest();
 131
 132   // content::GeolocationUpdateCallback implementation.
 133   void ReceiveGeolocationUpdate(const content::Geoposition&);
 134
 135   // How often to poll to see if the user is idle.
 136   int poll_interval_seconds_;
 137
 138   PrefService* local_state_;
 139
 140   // The last time an idle state check was performed.
 141   base::Time last_idle_check_;
 142
 143   // The maximum key that went into the last report generated by
 144   // GetDeviceStatus(), and the duration for it. This is used to trim the
 145   // stored data in OnSubmittedSuccessfully(). Trimming is delayed so
 146   // unsuccessful uploads don't result in dropped data.
 147   int64 last_reported_day_;
 148   int duration_for_last_reported_day_;
 149
 150   // Whether a geolocation update is currently in progress.
 151   bool geolocation_update_in_progress_;
 152
 153   base::RepeatingTimer<DeviceStatusCollector> idle_poll_timer_;
 154   base::OneShotTimer<DeviceStatusCollector> geolocation_update_timer_;
 155
 156   chromeos::VersionLoader version_loader_;
 157   base::CancelableTaskTracker tracker_;
 158
 159   std::string os_version_;
 160   std::string firmware_version_;
 161
 162   content::Geoposition position_;
 163
 164   chromeos::system::StatisticsProvider* statistics_provider_;
 165
 166   chromeos::CrosSettings* cros_settings_;
 167
 168   // TODO(bartfab): Remove this once crbug.com/125931 is addressed and a proper
 169   // way to mock geolocation exists.
 170   LocationUpdateRequester location_update_requester_;
 171
 172   scoped_ptr<content::GeolocationProvider::Subscription>
 173       geolocation_subscription_;
 174
 175   // Cached values of the reporting settings from the device policy.
 176   bool report_version_info_;
 177   bool report_activity_times_;
 178   bool report_boot_mode_;
 179   bool report_location_;
 180   bool report_network_interfaces_;
 181   bool report_users_;
 182
 183   scoped_ptr<chromeos::CrosSettings::ObserverSubscription>
 184       version_info_subscription_;
 185   scoped_ptr<chromeos::CrosSettings::ObserverSubscription>
 186       activity_times_subscription_;
 187   scoped_ptr<chromeos::CrosSettings::ObserverSubscription>
 188       boot_mode_subscription_;
 189   scoped_ptr<chromeos::CrosSettings::ObserverSubscription>
 190       location_subscription_;
 191   scoped_ptr<chromeos::CrosSettings::ObserverSubscription>
 192       network_interfaces_subscription_;
 193   scoped_ptr<chromeos::CrosSettings::ObserverSubscription>
 194       users_subscription_;
 195
 196   base::WeakPtrFactory<DeviceStatusCollector> weak_factory_;
 197
 198   DISALLOW_COPY_AND_ASSIGN(DeviceStatusCollector);
 199 };
 200
 201 }  // namespace policy
 202
 203 #endif  // CHROME_BROWSER_CHROMEOS_POLICY_DEVICE_STATUS_COLLECTOR_H_