Add device location reporting

chrome/browser/policy/device_status_collector.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/policy/device_status_collector.h"
 
+#include <string>
+
 #include "base/bind.h"
-#include "base/callback.h"
+#include "base/bind_helpers.h"
+#include "base/basictypes.h"
+#include "base/location.h"
+#include "base/logging.h"
+#include "base/memory/scoped_ptr.h"
 #include "base/string_number_conversions.h"
+#include "base/values.h"
 #include "chrome/browser/chromeos/cros_settings.h"
 #include "chrome/browser/chromeos/cros_settings_names.h"
 #include "chrome/browser/chromeos/system/statistics_provider.h"
+#include "chrome/browser/policy/device_status_location_helper.h"
 #include "chrome/browser/policy/proto/device_management_backend.pb.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/prefs/scoped_user_pref_update.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/chrome_version_info.h"
 #include "chrome/common/pref_names.h"
+#include "content/browser/geolocation/geolocation_provider.h"
+#include "content/common/geoposition.h"
+#include "content/public/browser/notification_details.h"
+#include "content/public/browser/notification_source.h"
 
 using base::Time;
 using base::TimeDelta;
 using chromeos::VersionLoader;
 
 namespace em = enterprise_management;
 
 namespace {
 // How many seconds of inactivity triggers the idle state.
 const unsigned int kIdleStateThresholdSeconds = 300;
@@ skipping 25 matching lines @@
 namespace policy {
 
 DeviceStatusCollector::DeviceStatusCollector(
     PrefService* local_state,
     chromeos::system::StatisticsProvider* provider)
     : max_stored_past_activity_days_(kMaxStoredPastActivityDays),
       max_stored_future_activity_days_(kMaxStoredFutureActivityDays),
       local_state_(local_state),
       last_idle_check_(Time()),
       statistics_provider_(provider),
+      geolocation_provider_for_test_(NULL),
+      location_helper_(NULL),
       report_version_info_(false),
       report_activity_times_(false),
-      report_boot_mode_(false) {
+      report_boot_mode_(false),
+      report_location_(false) {
   timer_.Start(FROM_HERE,
                TimeDelta::FromSeconds(kPollIntervalSeconds),
                this, &DeviceStatusCollector::CheckIdleState);
 
   cros_settings_ = chromeos::CrosSettings::Get();
 
   // Watch for changes to the individual policies that control what the status
   // reports contain.
   cros_settings_->AddSettingsObserver(chromeos::kReportDeviceVersionInfo, this);
   cros_settings_->AddSettingsObserver(chromeos::kReportDeviceActivityTimes,
                                       this);
   cros_settings_->AddSettingsObserver(chromeos::kReportDeviceBootMode, this);
+  cros_settings_->AddSettingsObserver(chromeos::kReportDeviceLocation, this);
 
   // Fetch the current values of the policies.
   UpdateReportingSettings();
 
   // Get the the OS and firmware version info.
   version_loader_.GetVersion(&consumer_,
                              base::Bind(&DeviceStatusCollector::OnOSVersion,
                                         base::Unretained(this)),
                              VersionLoader::VERSION_FULL);
   version_loader_.GetFirmware(&consumer_,
                               base::Bind(&DeviceStatusCollector::OnOSFirmware,
                                          base::Unretained(this)));
 }
 
 DeviceStatusCollector::~DeviceStatusCollector() {
   cros_settings_->RemoveSettingsObserver(chromeos::kReportDeviceVersionInfo,
                                          this);
   cros_settings_->RemoveSettingsObserver(chromeos::kReportDeviceActivityTimes,
                                          this);
   cros_settings_->RemoveSettingsObserver(chromeos::kReportDeviceBootMode, this);
+  cros_settings_->RemoveSettingsObserver(chromeos::kReportDeviceLocation, this);
+
+  if (location_helper_)
+    location_helper_->Destruct();
 }
 
 // static
 void DeviceStatusCollector::RegisterPrefs(PrefService* local_state) {
   local_state->RegisterDictionaryPref(prefs::kDeviceActivityTimes,
                                       new DictionaryValue);
+  DeviceStatusLocationHelper::RegisterPrefs(local_state);
 }
 
 void DeviceStatusCollector::CheckIdleState() {
   CalculateIdleState(kIdleStateThresholdSeconds,
       base::Bind(&DeviceStatusCollector::IdleStateCallback,
                  base::Unretained(this)));
 }
 
+void DeviceStatusCollector::SetGeolocationProviderForTest(
+    GeolocationProvider* provider) {
+  geolocation_provider_for_test_ = provider;
+  if (location_helper_)
+    location_helper_->SetGeolocationProviderForTest(provider);
+}
+
 void DeviceStatusCollector::UpdateReportingSettings() {
   // Attempt to fetch the current value of the reporting settings.
   // If trusted values are not available, register this function to be called
   // back when they are available.
   if (!cros_settings_->PrepareTrustedValues(
       base::Bind(&DeviceStatusCollector::UpdateReportingSettings,
                  base::Unretained(this)))) {
     return;
   }
   cros_settings_->GetBoolean(
       chromeos::kReportDeviceVersionInfo, &report_version_info_);
   cros_settings_->GetBoolean(
       chromeos::kReportDeviceActivityTimes, &report_activity_times_);
   cros_settings_->GetBoolean(
       chromeos::kReportDeviceBootMode, &report_boot_mode_);
+  cros_settings_->GetBoolean(
+      chromeos::kReportDeviceLocation, &report_location_);
+
+  if (report_location_) {
+    if (!location_helper_) {
+      location_helper_ = new DeviceStatusLocationHelper(local_state_);
+      if (geolocation_provider_for_test_) {
+        location_helper_->SetGeolocationProviderForTest(
+            geolocation_provider_for_test_);
+      }
+    }
+  } else {
+    if (location_helper_) {
+      location_helper_->Destruct();
+      location_helper_ = NULL;
+    }
+    local_state_->ClearPref(prefs::kDeviceLocation);
+  }
 }
 
 Time DeviceStatusCollector::GetCurrentTime() {
   return Time::Now();
 }
 
 // Remove all out-of-range activity times from the local store.
 void DeviceStatusCollector::PruneStoredActivityPeriods(Time base_time) {
   const DictionaryValue* activity_times =
       local_state_->GetDictionary(prefs::kDeviceActivityTimes);
@@ skipping 113 matching lines @@
   std::string dev_switch_mode;
   if (statistics_provider_->GetMachineStatistic(
       "devsw_boot", &dev_switch_mode)) {
     if (dev_switch_mode == "1")
       request->set_boot_mode("Dev");
     else if (dev_switch_mode == "0")
       request->set_boot_mode("Verified");
   }
 }
 
+void DeviceStatusCollector::GetLocation(
+  em::DeviceStatusReportRequest* request) {

[Joao da Silva, 2012/04/23 10:19:57]

Nit: indent (4 spaces)

[bartfab (slow), 2012/04/23 12:21:28]

Done.

+  em::DeviceLocation* location = request->mutable_device_location();
+  if (!location_helper_) {
+    location->set_error_code(
+        em::DeviceLocation::ERROR_CODE_POSITION_UNAVAILABLE);
+  } else {
+    const Geoposition& position = location_helper_->GetPosition();
+    if (!position.IsValidFix()) {
+      location->set_error_code(
+          em::DeviceLocation::ERROR_CODE_POSITION_UNAVAILABLE);
+      location->set_error_message(position.error_message);
+    } else {
+      location->set_latitude(position.latitude);
+      location->set_longitude(position.longitude);
+      location->set_accuracy(position.accuracy);
+      location->set_timestamp(
+          (position.timestamp - Time::UnixEpoch()).InMilliseconds());
+      if (position.is_valid_altitude())
+        location->set_altitude(position.altitude);
+      if (position.is_valid_altitude_accuracy())
+        location->set_altitude_accuracy(position.altitude_accuracy);
+      if (position.is_valid_heading())
+        location->set_heading(position.heading);
+      if (position.is_valid_speed())
+        location->set_speed(position.speed);
+      location->set_error_code(em::DeviceLocation::ERROR_CODE_NONE);
+    }
+  }
+}
+
 void DeviceStatusCollector::GetStatus(em::DeviceStatusReportRequest* request) {
   if (report_activity_times_)
     GetActivityTimes(request);
 
   if (report_version_info_)
     GetVersionInfo(request);
 
   if (report_boot_mode_)
     GetBootMode(request);
+
+  if (report_location_)
+    GetLocation(request);
 }
 
 void DeviceStatusCollector::OnOSVersion(VersionLoader::Handle handle,
                                         std::string version) {
   os_version_ = version;
 }
 
 void DeviceStatusCollector::OnOSFirmware(VersionLoader::Handle handle,
                                          std::string version) {
   firmware_version_ = version;
 }
 
 void DeviceStatusCollector::Observe(
     int type,
     const content::NotificationSource& source,
     const content::NotificationDetails& details) {
   if (type == chrome::NOTIFICATION_SYSTEM_SETTING_CHANGED)
     UpdateReportingSettings();
   else
     NOTREACHED();
 }
 
 }  // namespace policy