diff options
| -rw-r--r-- | services/companion/java/com/android/server/companion/CompanionDeviceManagerService.java | 56 |
1 files changed, 55 insertions, 1 deletions
diff --git a/services/companion/java/com/android/server/companion/CompanionDeviceManagerService.java b/services/companion/java/com/android/server/companion/CompanionDeviceManagerService.java index 6ccdf245b271..961dc159009c 100644 --- a/services/companion/java/com/android/server/companion/CompanionDeviceManagerService.java +++ b/services/companion/java/com/android/server/companion/CompanionDeviceManagerService.java @@ -22,10 +22,14 @@ import static com.android.internal.util.FunctionalUtils.uncheckExceptions; import static com.android.internal.util.Preconditions.checkArgument; import static com.android.internal.util.Preconditions.checkNotNull; import static com.android.internal.util.Preconditions.checkState; +import static com.android.internal.util.function.pooled.PooledLambda.obtainMessage; import static com.android.internal.util.function.pooled.PooledLambda.obtainRunnable; +import static java.util.concurrent.TimeUnit.MINUTES; + import android.annotation.CheckResult; import android.annotation.Nullable; +import android.app.AppOpsManager; import android.app.PendingIntent; import android.companion.Association; import android.companion.AssociationRequest; @@ -36,6 +40,7 @@ import android.companion.IFindDeviceCallback; import android.content.ComponentName; import android.content.Context; import android.content.Intent; +import android.content.SharedPreferences; import android.content.pm.FeatureInfo; import android.content.pm.PackageInfo; import android.content.pm.PackageItemInfo; @@ -55,6 +60,7 @@ import android.os.ServiceManager; import android.os.ShellCallback; import android.os.ShellCommand; import android.os.UserHandle; +import android.os.UserManagerInternal; import android.provider.Settings; import android.provider.SettingsStringUtil.ComponentNameSet; import android.text.BidiFormatter; @@ -71,6 +77,7 @@ import com.android.internal.infra.AndroidFuture; import com.android.internal.infra.PerUser; import com.android.internal.infra.ServiceConnector; import com.android.internal.notification.NotificationAccessConfirmationActivityContract; +import com.android.internal.os.BackgroundThread; import com.android.internal.util.ArrayUtils; import com.android.internal.util.CollectionUtils; import com.android.internal.util.function.pooled.PooledLambda; @@ -112,6 +119,9 @@ public class CompanionDeviceManagerService extends SystemService implements Bind private static final boolean DEBUG = false; private static final String LOG_TAG = "CompanionDeviceManagerService"; + private static final String PREF_FILE_NAME = "companion_device_preferences.xml"; + private static final String PREF_KEY_AUTO_REVOKE_GRANTS_DONE = "auto_revoke_grants_done"; + private static final String XML_TAG_ASSOCIATIONS = "associations"; private static final String XML_TAG_ASSOCIATION = "association"; private static final String XML_ATTR_PACKAGE = "package"; @@ -150,7 +160,6 @@ public class CompanionDeviceManagerService extends SystemService implements Bind } }; - registerPackageMonitor(); } @@ -195,6 +204,36 @@ public class CompanionDeviceManagerService extends SystemService implements Bind if (atmInternal != null) { atmInternal.setCompanionAppPackages(userHandle, companionAppPackages); } + + BackgroundThread.getHandler().sendMessageDelayed( + obtainMessage(CompanionDeviceManagerService::maybeGrantAutoRevokeExemptions, this), + MINUTES.toMillis(10)); + } + + void maybeGrantAutoRevokeExemptions() { + PackageManager pm = getContext().getPackageManager(); + for (int userId : LocalServices.getService(UserManagerInternal.class).getUserIds()) { + SharedPreferences pref = getContext().getSharedPreferences( + new File(Environment.getUserSystemDirectory(userId), PREF_FILE_NAME), + Context.MODE_PRIVATE); + if (pref.getBoolean(PREF_KEY_AUTO_REVOKE_GRANTS_DONE, false)) { + continue; + } + + try { + Set<Association> associations = readAllAssociations(userId); + for (Association a : associations) { + try { + int uid = pm.getPackageUidAsUser(a.companionAppPackage, userId); + exemptFromAutoRevoke(a.companionAppPackage, uid); + } catch (PackageManager.NameNotFoundException e) { + Log.w(LOG_TAG, "Unknown companion package: " + a.companionAppPackage, e); + } + } + } finally { + pref.edit().putBoolean(PREF_KEY_AUTO_REVOKE_GRANTS_DONE, true).apply(); + } + } } @Override @@ -469,6 +508,21 @@ public class CompanionDeviceManagerService extends SystemService implements Bind packageInfo.applicationInfo.uid, NetworkPolicyManager.POLICY_ALLOW_METERED_BACKGROUND); } + + exemptFromAutoRevoke(packageInfo.packageName, packageInfo.applicationInfo.uid); + } + + private void exemptFromAutoRevoke(String packageName, int uid) { + try { + mAppOpsManager.setMode( + AppOpsManager.OP_AUTO_REVOKE_PERMISSIONS_IF_UNUSED, + uid, + packageName, + AppOpsManager.MODE_IGNORED); + } catch (RemoteException e) { + Log.w(LOG_TAG, + "Error while granting auto revoke exemption for " + packageName, e); + } } private static <T> boolean containsEither(T[] array, T a, T b) { |