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/wizard_controller.h"
  14 #include "chrome/browser/chromeos/ownership/owner_settings_service_chromeos.h"
  15 #include "chrome/browser/chromeos/ownership/owner_settings_service_chromeos_factory.h"
  16 #include "chrome/browser/chromeos/settings/cros_settings.h"
  17 #include "chrome/browser/ui/webui/help/help_utils_chromeos.h"
  18 #include "chrome/grit/generated_resources.h"
  19 #include "chromeos/dbus/dbus_thread_manager.h"
  20 #include "chromeos/dbus/power_manager_client.h"
  21 #include "chromeos/network/network_handler.h"
  22 #include "chromeos/network/network_state.h"
  23 #include "chromeos/network/network_state_handler.h"
  24 #include "chromeos/settings/cros_settings_names.h"
  25 #include "third_party/cros_system_api/dbus/service_constants.h"
  26 #include "ui/base/l10n/l10n_util.h"
  27
  28 using chromeos::CrosSettings;
  29 using chromeos::DBusThreadManager;
  30 using chromeos::OwnerSettingsServiceChromeOS;
  31 using chromeos::OwnerSettingsServiceChromeOSFactory;
  32 using chromeos::UpdateEngineClient;
  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 // Returns whether an update is allowed. If not, it calls the callback with
  78 // the appropriate status.
  79 bool EnsureCanUpdate(const VersionUpdater::StatusCallback& callback) {
  80   if (IsAutoUpdateDisabled()) {
  81     callback.Run(VersionUpdater::FAILED, 0,
  82                  l10n_util::GetStringUTF16(IDS_UPGRADE_DISABLED_BY_POLICY));
  83     return false;
  84   }
  85
  86   chromeos::NetworkStateHandler* network_state_handler =
  87       chromeos::NetworkHandler::Get()->network_state_handler();
  88   const chromeos::NetworkState* network =
  89       network_state_handler->DefaultNetwork();
  90
  91   // Don't allow an update if we're currently offline or connected
  92   // to a network for which updates are disallowed.
  93   NetworkStatus status = GetNetworkStatus(network);
  94   if (status == NETWORK_STATUS_OFFLINE) {
  95     callback.Run(VersionUpdater::FAILED_OFFLINE, 0,
  96                   l10n_util::GetStringUTF16(IDS_UPGRADE_OFFLINE));
  97     return false;
  98   } else if (status == NETWORK_STATUS_DISALLOWED) {
  99     base::string16 message =
 100         l10n_util::GetStringFUTF16(
 101             IDS_UPGRADE_DISALLOWED,
 102             help_utils_chromeos::GetConnectionTypeAsUTF16(network->type()));
 103     callback.Run(VersionUpdater::FAILED_CONNECTION_TYPE_DISALLOWED, 0, message);
 104     return false;
 105   }
 106
 107   return true;
 108 }
 109
 110 }  // namespace
 111
 112 VersionUpdater* VersionUpdater::Create(content::BrowserContext* context) {
 113   return new VersionUpdaterCros(context);
 114 }
 115
 116 void VersionUpdaterCros::GetUpdateStatus(const StatusCallback& callback) {
 117   callback_ = callback;
 118
 119   if (!EnsureCanUpdate(callback))
 120     return;
 121
 122   UpdateEngineClient* update_engine_client =
 123       DBusThreadManager::Get()->GetUpdateEngineClient();
 124   if (!update_engine_client->HasObserver(this))
 125     update_engine_client->AddObserver(this);
 126
 127   this->UpdateStatusChanged(
 128       DBusThreadManager::Get()->GetUpdateEngineClient()->GetLastStatus());
 129 }
 130
 131 void VersionUpdaterCros::CheckForUpdate(const StatusCallback& callback) {
 132   callback_ = callback;
 133
 134   if (!EnsureCanUpdate(callback))
 135     return;
 136
 137   UpdateEngineClient* update_engine_client =
 138       DBusThreadManager::Get()->GetUpdateEngineClient();
 139   if (!update_engine_client->HasObserver(this))
 140     update_engine_client->AddObserver(this);
 141
 142   if (update_engine_client->GetLastStatus().status !=
 143       UpdateEngineClient::UPDATE_STATUS_IDLE) {
 144     check_for_update_when_idle_ = true;
 145     return;
 146   }
 147   check_for_update_when_idle_ = false;
 148
 149   // Make sure that libcros is loaded and OOBE is complete.
 150   if (!WizardController::default_controller() ||
 151       chromeos::StartupUtils::IsDeviceRegistered()) {
 152     update_engine_client->RequestUpdateCheck(base::Bind(
 153         &VersionUpdaterCros::OnUpdateCheck, weak_ptr_factory_.GetWeakPtr()));
 154   }
 155 }
 156
 157 void VersionUpdaterCros::RelaunchBrowser() const {
 158   DBusThreadManager::Get()->GetPowerManagerClient()->RequestRestart();
 159 }
 160
 161 void VersionUpdaterCros::SetChannel(const std::string& channel,
 162                                     bool is_powerwash_allowed) {
 163   OwnerSettingsServiceChromeOS* service =
 164       context_
 165           ? OwnerSettingsServiceChromeOSFactory::GetInstance()
 166                 ->GetForBrowserContext(context_)
 167           : nullptr;
 168   // For local owner set the field in the policy blob.
 169   if (service)
 170     service->SetString(chromeos::kReleaseChannel, channel);
 171   DBusThreadManager::Get()->GetUpdateEngineClient()->
 172       SetChannel(channel, is_powerwash_allowed);
 173 }
 174
 175 void VersionUpdaterCros::GetChannel(bool get_current_channel,
 176                                     const ChannelCallback& cb) {
 177   UpdateEngineClient* update_engine_client =
 178       DBusThreadManager::Get()->GetUpdateEngineClient();
 179
 180   // Request the channel information.
 181   update_engine_client->GetChannel(get_current_channel, cb);
 182 }
 183
 184 VersionUpdaterCros::VersionUpdaterCros(content::BrowserContext* context)
 185     : context_(context),
 186       last_operation_(UpdateEngineClient::UPDATE_STATUS_IDLE),
 187       check_for_update_when_idle_(false),
 188       weak_ptr_factory_(this) {
 189 }
 190
 191 VersionUpdaterCros::~VersionUpdaterCros() {
 192   UpdateEngineClient* update_engine_client =
 193       DBusThreadManager::Get()->GetUpdateEngineClient();
 194   update_engine_client->RemoveObserver(this);
 195 }
 196
 197 void VersionUpdaterCros::UpdateStatusChanged(
 198     const UpdateEngineClient::Status& status) {
 199   Status my_status = UPDATED;
 200   int progress = 0;
 201   base::string16 message;
 202
 203   // If the updater is currently idle, just show the last operation (unless it
 204   // was previously checking for an update -- in that case, the system is
 205   // up-to-date now).  See http://crbug.com/120063 for details.
 206   UpdateEngineClient::UpdateStatusOperation operation_to_show = status.status;
 207   if (status.status == UpdateEngineClient::UPDATE_STATUS_IDLE &&
 208       last_operation_ !=
 209       UpdateEngineClient::UPDATE_STATUS_CHECKING_FOR_UPDATE) {
 210     operation_to_show = last_operation_;
 211   }
 212
 213   switch (operation_to_show) {
 214     case UpdateEngineClient::UPDATE_STATUS_ERROR:
 215     case UpdateEngineClient::UPDATE_STATUS_REPORTING_ERROR_EVENT:
 216     case UpdateEngineClient::UPDATE_STATUS_ATTEMPTING_ROLLBACK:
 217       // This path previously used the FAILED status and IDS_UPGRADE_ERROR, but
 218       // the update engine reports errors for some conditions that shouldn't
 219       // actually be displayed as errors to users: http://crbug.com/146919.
 220       // Just use the UPDATED status instead.
 221       break;
 222     case UpdateEngineClient::UPDATE_STATUS_CHECKING_FOR_UPDATE:
 223       my_status = CHECKING;
 224       break;
 225     case UpdateEngineClient::UPDATE_STATUS_DOWNLOADING:
 226       progress = static_cast<int>(round(status.download_progress * 100));
 227       // Fall through.
 228     case UpdateEngineClient::UPDATE_STATUS_UPDATE_AVAILABLE:
 229       my_status = UPDATING;
 230       break;
 231     case UpdateEngineClient::UPDATE_STATUS_VERIFYING:
 232     case UpdateEngineClient::UPDATE_STATUS_FINALIZING:
 233       // Once the download is finished, keep the progress at 100; it shouldn't
 234       // go down while the status is the same.
 235       progress = 100;
 236       my_status = UPDATING;
 237       break;
 238     case UpdateEngineClient::UPDATE_STATUS_UPDATED_NEED_REBOOT:
 239       my_status = NEARLY_UPDATED;
 240       break;
 241     default:
 242       break;
 243   }
 244
 245   callback_.Run(my_status, progress, message);
 246   last_operation_ = status.status;
 247
 248   if (check_for_update_when_idle_ &&
 249       status.status == UpdateEngineClient::UPDATE_STATUS_IDLE) {
 250     CheckForUpdate(callback_);
 251   }
 252 }
 253
 254 void VersionUpdaterCros::OnUpdateCheck(
 255     UpdateEngineClient::UpdateCheckResult result) {
 256   // If version updating is not implemented, this binary is the most up-to-date
 257   // possible with respect to automatic updating.
 258   if (result == UpdateEngineClient::UPDATE_RESULT_NOTIMPLEMENTED)
 259     callback_.Run(UPDATED, 0, base::string16());
 260 }