Merge "Exempt companion apps from auto revoke" into rvc-dev (4b3418bf) · Commits · e / os / android_frameworks_base

services/companion/java/com/android/server/companion/CompanionDeviceManagerService.java

+55 −1

Original line number	Diff line number	Diff line
		@@ -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) {