Examining if started activity violates lock task mode earlier (a89729a2) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/wm/ActivityStarter.java

+11 −9

Original line number	Diff line number	Diff line
		@@ -1687,11 +1687,6 @@ class ActivityStarter {
		final Task taskToAffiliate = (mLaunchTaskBehind && mSourceRecord != null)
		? mSourceRecord.getTask() : null;
		setNewTask(taskToAffiliate);
		if (mService.getLockTaskController().isLockTaskModeViolation(
		mStartActivity.getTask())) {
		Slog.e(TAG, "Attempted Lock Task Mode violation mStartActivity=" + mStartActivity);
		return START_RETURN_LOCK_TASK_MODE_VIOLATION;
		}
		} else if (mAddingToTask) {
		addOrReparentStartingActivity(targetTask, "adding to task");
		}
		@@ -1870,11 +1865,18 @@ class ActivityStarter {
		final boolean isNewClearTask =
		(mLaunchFlags & (FLAG_ACTIVITY_NEW_TASK \| FLAG_ACTIVITY_CLEAR_TASK))
		== (FLAG_ACTIVITY_NEW_TASK \| FLAG_ACTIVITY_CLEAR_TASK);
		if (!newTask && mService.getLockTaskController().isLockTaskModeViolation(targetTask,
		if (!newTask) {
		if (mService.getLockTaskController().isLockTaskModeViolation(targetTask,
		isNewClearTask)) {
		Slog.e(TAG, "Attempted Lock Task Mode violation mStartActivity=" + mStartActivity);
		return START_RETURN_LOCK_TASK_MODE_VIOLATION;
		}
		} else {
		if (mService.getLockTaskController().isNewTaskLockTaskModeViolation(mStartActivity)) {
		Slog.e(TAG, "Attempted Lock Task Mode violation mStartActivity=" + mStartActivity);
		return START_RETURN_LOCK_TASK_MODE_VIOLATION;
		}
		}

		return START_SUCCESS;
		}

services/core/java/com/android/server/wm/LockTaskController.java

+33 −18

Original line number	Diff line number	Diff line
		@@ -274,11 +274,10 @@ public class LockTaskController {
		}

		/**
		* @return whether the requested task is allowed to be locked (either allowlisted, or declares
		* lockTaskMode="always" in the manifest).
		* @return whether the requested task auth is allowed to be locked.
		*/
		boolean isTaskAllowlisted(Task task) {
		switch(task.mLockTaskAuth) {
		static boolean isTaskAuthAllowlisted(int lockTaskAuth) {
		switch(lockTaskAuth) {
		case LOCK_TASK_AUTH_ALLOWLISTED:
		case LOCK_TASK_AUTH_LAUNCHABLE:
		case LOCK_TASK_AUTH_LAUNCHABLE_PRIV:
		@@ -302,7 +301,30 @@ public class LockTaskController {
		* @return whether the requested task is disallowed to be launched.
		*/
		boolean isLockTaskModeViolation(Task task, boolean isNewClearTask) {
		if (isLockTaskModeViolationInternal(task, isNewClearTask)) {
		// TODO: Double check what's going on here. If the task is already in lock task mode, it's
		// likely allowlisted, so will return false below.
		if (isTaskLocked(task) && !isNewClearTask) {
		// If the task is already at the top and won't be cleared, then allow the operation
		} else if (isLockTaskModeViolationInternal(task, task.mUserId, task.intent,
		task.mLockTaskAuth)) {
		showLockTaskToast();
		return true;
		}
		return false;
		}

		/**
		* @param activity an activity that is going to be started in a new task as the root activity.
		* @return whether the given activity is allowed to be launched.
		*/
		boolean isNewTaskLockTaskModeViolation(ActivityRecord activity) {
		// Use the belong task (if any) to perform the lock task checks
		if (activity.getTask() != null) {
		return isLockTaskModeViolation(activity.getTask());
		}

		int auth = getLockTaskAuth(activity, null /* task */);
		if (isLockTaskModeViolationInternal(activity, activity.mUserId, activity.intent, auth)) {
		showLockTaskToast();
		return true;
		}
		@@ -319,25 +341,19 @@ public class LockTaskController {
		return mLockTaskModeTasks.get(0);
		}

		private boolean isLockTaskModeViolationInternal(Task task, boolean isNewClearTask) {
		// TODO: Double check what's going on here. If the task is already in lock task mode, it's
		// likely allowlisted, so will return false below.
		if (isTaskLocked(task) && !isNewClearTask) {
		// If the task is already at the top and won't be cleared, then allow the operation
		return false;
		}

		private boolean isLockTaskModeViolationInternal(WindowContainer wc, int userId,
		Intent intent, int taskAuth) {
		// Allow recents activity if enabled by policy
		if (task.isActivityTypeRecents() && isRecentsAllowed(task.mUserId)) {
		if (wc.isActivityTypeRecents() && isRecentsAllowed(userId)) {
		return false;
		}

		// Allow emergency calling when the device is protected by a locked keyguard
		if (isKeyguardAllowed(task.mUserId) && isEmergencyCallTask(task)) {
		if (isKeyguardAllowed(userId) && isEmergencyCallIntent(intent)) {
		return false;
		}

		return !(isTaskAllowlisted(task) \|\| mLockTaskModeTasks.isEmpty());
		return !(isTaskAuthAllowlisted(taskAuth) \|\| mLockTaskModeTasks.isEmpty());
		}

		private boolean isRecentsAllowed(int userId) {
		@@ -369,8 +385,7 @@ public class LockTaskController {
		return isPackageAllowlisted(userId, packageName);
		}

		private boolean isEmergencyCallTask(Task task) {
		final Intent intent = task.intent;
		private boolean isEmergencyCallIntent(Intent intent) {
		if (intent == null) {
		return false;
		}

services/core/java/com/android/server/wm/RecentTasks.java

+2 −2

Original line number	Diff line number	Diff line
		@@ -658,8 +658,8 @@ class RecentTasks {
		}
		for (int i = mTasks.size() - 1; i >= 0; --i) {
		final Task task = mTasks.get(i);
		if (task.mUserId == userId
		&& !mService.getLockTaskController().isTaskAllowlisted(task)) {
		if (task.mUserId == userId && !mService.getLockTaskController().isTaskAuthAllowlisted(
		task.mLockTaskAuth)) {
		remove(task);
		}
		}

services/tests/wmtests/src/com/android/server/wm/ActivityStarterTests.java

+1 −1

Original line number	Diff line number	Diff line
		@@ -486,7 +486,7 @@ public class ActivityStarterTests extends WindowTestsBase {
		final ActivityStarter starter = prepareStarter(0);

		final LockTaskController lockTaskController = mAtm.getLockTaskController();
		doReturn(true).when(lockTaskController).isLockTaskModeViolation(any());
		doReturn(true).when(lockTaskController).isNewTaskLockTaskModeViolation(any());

		final int result = starter.setReason("testTaskModeViolation").execute();