chrome/browser/ui/webui/help/version_updater_chromeos.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/help/version_updater_chromeos.h"
   6
   7 #include <cmath>
   8
   9 #include "base/bind.h"
  10 #include "base/bind_helpers.h"
  11 #include "chrome/browser/browser_process.h"
  12 #include "chrome/browser/chromeos/login/startup_utils.h"
  13 #include "chrome/browser/chromeos/login/user_manager.h"
  14 #include "chrome/browser/chromeos/login/wizard_controller.h"
  15 #include "chrome/browser/chromeos/settings/cros_settings.h"
  16 #include "chrome/browser/policy/browser_policy_connector.h"
  17 #include "chrome/browser/ui/webui/help/help_utils_chromeos.h"
  18 #include "chromeos/dbus/dbus_thread_manager.h"
  19 #include "chromeos/dbus/power_manager_client.h"
  20 #include "chromeos/network/network_handler.h"
  21 #include "chromeos/network/network_state.h"
  22 #include "chromeos/network/network_state_handler.h"
  23 #include "chromeos/settings/cros_settings_names.h"
  24 #include "grit/chromium_strings.h"
  25 #include "grit/generated_resources.h"
  26 #include "third_party/cros_system_api/dbus/service_constants.h"
  27 #include "ui/base/l10n/l10n_util.h"
  28
  29 using chromeos::CrosSettings;
  30 using chromeos::DBusThreadManager;
  31 using chromeos::UpdateEngineClient;
  32 using chromeos::UserManager;
  33 using chromeos::WizardController;
  34
  35 namespace {
  36
  37 // Network status in the context of device update.
  38 enum NetworkStatus {
  39   // It's allowed in device policy to use current network for update.
  40   NETWORK_STATUS_ALLOWED = 0,
  41   // It's disallowed in device policy to use current network for update.
  42   NETWORK_STATUS_DISALLOWED,
  43   // Device is in offline state.
  44   NETWORK_STATUS_OFFLINE
  45 };
  46
  47 const bool kDefaultAutoUpdateDisabled = false;
  48
  49 NetworkStatus GetNetworkStatus(const chromeos::NetworkState* network) {
  50   if (!network || !network->IsConnectedState())  // Offline state.
  51     return NETWORK_STATUS_OFFLINE;
  52
  53   // The connection type checking strategy must be the same as the one
  54   // used in update engine.
  55   if (network->type() == shill::kTypeBluetooth)
  56     return NETWORK_STATUS_DISALLOWED;
  57   if (network->type() == shill::kTypeCellular &&
  58       !help_utils_chromeos::IsUpdateOverCellularAllowed()) {
  59     return NETWORK_STATUS_DISALLOWED;
  60   }
  61   return NETWORK_STATUS_ALLOWED;
  62 }
  63
  64 // Returns true if auto-update is disabled by the system administrator.
  65 bool IsAutoUpdateDisabled() {
  66   bool update_disabled = kDefaultAutoUpdateDisabled;
  67   chromeos::CrosSettings* settings = chromeos::CrosSettings::Get();
  68   if (!settings)
  69     return update_disabled;
  70   const base::Value* update_disabled_value =
  71       settings->GetPref(chromeos::kUpdateDisabled);
  72   if (update_disabled_value)
  73     CHECK(update_disabled_value->GetAsBoolean(&update_disabled));
  74   return update_disabled;
  75 }
  76
  77 }  // namespace
  78
  79 VersionUpdater* VersionUpdater::Create() {
  80   return new VersionUpdaterCros;
  81 }
  82
  83 void VersionUpdaterCros::CheckForUpdate(const StatusCallback& callback) {
  84   callback_ = callback;
  85
  86   if (IsAutoUpdateDisabled()) {
  87     callback_.Run(FAILED, 0,
  88                   l10n_util::GetStringUTF16(IDS_UPGRADE_DISABLED_BY_POLICY));
  89     return;
  90   }
  91
  92   chromeos::NetworkStateHandler* network_state_handler =
  93       chromeos::NetworkHandler::Get()->network_state_handler();
  94   const chromeos::NetworkState* network =
  95       network_state_handler->DefaultNetwork();
  96
  97   // Don't proceed to update if we're currently offline or connected
  98   // to a network for which updates are disallowed.
  99   NetworkStatus status = GetNetworkStatus(network);
 100   if (status == NETWORK_STATUS_OFFLINE) {
 101     callback_.Run(FAILED_OFFLINE, 0,
 102                   l10n_util::GetStringUTF16(IDS_UPGRADE_OFFLINE));
 103     return;
 104   } else if (status == NETWORK_STATUS_DISALLOWED) {
 105     base::string16 message =
 106         l10n_util::GetStringFUTF16(
 107             IDS_UPGRADE_DISALLOWED,
 108             help_utils_chromeos::GetConnectionTypeAsUTF16(network->type()));
 109     callback_.Run(FAILED_CONNECTION_TYPE_DISALLOWED, 0, message);
 110     return;
 111   }
 112
 113   UpdateEngineClient* update_engine_client =
 114       DBusThreadManager::Get()->GetUpdateEngineClient();
 115   update_engine_client->AddObserver(this);
 116
 117   // Make sure that libcros is loaded and OOBE is complete.
 118   if (!WizardController::default_controller() ||
 119       chromeos::StartupUtils::IsDeviceRegistered()) {
 120     update_engine_client->RequestUpdateCheck(
 121         base::Bind(&VersionUpdaterCros::OnUpdateCheck,
 122                    weak_ptr_factory_.GetWeakPtr()));
 123   }
 124 }
 125
 126 void VersionUpdaterCros::RelaunchBrowser() const {
 127   DBusThreadManager::Get()->GetPowerManagerClient()->RequestRestart();
 128 }
 129
 130 void VersionUpdaterCros::SetChannel(const std::string& channel,
 131                                     bool is_powerwash_allowed) {
 132   if (UserManager::Get()->IsCurrentUserOwner()) {
 133     // For local owner set the field in the policy blob.
 134     CrosSettings::Get()->SetString(chromeos::kReleaseChannel, channel);
 135   }
 136   DBusThreadManager::Get()->GetUpdateEngineClient()->
 137       SetChannel(channel, is_powerwash_allowed);
 138 }
 139
 140 void VersionUpdaterCros::GetChannel(bool get_current_channel,
 141                                     const ChannelCallback& cb) {
 142   UpdateEngineClient* update_engine_client =
 143       DBusThreadManager::Get()->GetUpdateEngineClient();
 144
 145   // Request the channel information.
 146   update_engine_client->GetChannel(get_current_channel, cb);
 147 }
 148
 149 VersionUpdaterCros::VersionUpdaterCros()
 150     : last_operation_(UpdateEngineClient::UPDATE_STATUS_IDLE),
 151       weak_ptr_factory_(this) {
 152 }
 153
 154 VersionUpdaterCros::~VersionUpdaterCros() {
 155   UpdateEngineClient* update_engine_client =
 156       DBusThreadManager::Get()->GetUpdateEngineClient();
 157   update_engine_client->RemoveObserver(this);
 158 }
 159
 160 void VersionUpdaterCros::UpdateStatusChanged(
 161     const UpdateEngineClient::Status& status) {
 162   Status my_status = UPDATED;
 163   int progress = 0;
 164   base::string16 message;
 165
 166   // If the updater is currently idle, just show the last operation (unless it
 167   // was previously checking for an update -- in that case, the system is
 168   // up-to-date now).  See http://crbug.com/120063 for details.
 169   UpdateEngineClient::UpdateStatusOperation operation_to_show = status.status;
 170   if (status.status == UpdateEngineClient::UPDATE_STATUS_IDLE &&
 171       last_operation_ !=
 172       UpdateEngineClient::UPDATE_STATUS_CHECKING_FOR_UPDATE) {
 173     operation_to_show = last_operation_;
 174   }
 175
 176   switch (operation_to_show) {
 177     case UpdateEngineClient::UPDATE_STATUS_ERROR:
 178     case UpdateEngineClient::UPDATE_STATUS_REPORTING_ERROR_EVENT:
 179       // This path previously used the FAILED status and IDS_UPGRADE_ERROR, but
 180       // the update engine reports errors for some conditions that shouldn't
 181       // actually be displayed as errors to users: http://crbug.com/146919.
 182       // Just use the UPDATED status instead.
 183       break;
 184     case UpdateEngineClient::UPDATE_STATUS_CHECKING_FOR_UPDATE:
 185       my_status = CHECKING;
 186       break;
 187     case UpdateEngineClient::UPDATE_STATUS_DOWNLOADING:
 188       progress = static_cast<int>(round(status.download_progress * 100));
 189       // Fall through.
 190     case UpdateEngineClient::UPDATE_STATUS_UPDATE_AVAILABLE:
 191       my_status = UPDATING;
 192       break;
 193     case UpdateEngineClient::UPDATE_STATUS_VERIFYING:
 194     case UpdateEngineClient::UPDATE_STATUS_FINALIZING:
 195       // Once the download is finished, keep the progress at 100; it shouldn't
 196       // go down while the status is the same.
 197       progress = 100;
 198       my_status = UPDATING;
 199       break;
 200     case UpdateEngineClient::UPDATE_STATUS_UPDATED_NEED_REBOOT:
 201       my_status = NEARLY_UPDATED;
 202       break;
 203     default:
 204       break;
 205   }
 206
 207   callback_.Run(my_status, progress, message);
 208   last_operation_ = status.status;
 209 }
 210
 211 void VersionUpdaterCros::OnUpdateCheck(
 212     UpdateEngineClient::UpdateCheckResult result) {
 213   // If version updating is not implemented, this binary is the most up-to-date
 214   // possible with respect to automatic updating.
 215   if (result == UpdateEngineClient::UPDATE_RESULT_NOTIMPLEMENTED)
 216     callback_.Run(UPDATED, 0, base::string16());
 217 }