Let sysUI call PeopleService#getLastInteraction (8fbe29a0) · Commits · e / os / android_frameworks_base

services/people/java/com/android/server/people/PeopleService.java

+20 −3

Original line number	Diff line number	Diff line
		@@ -94,12 +94,29 @@ public class PeopleService extends SystemService {
		* @throws SecurityException if the caller is not system or root
		*/
		private static void enforceSystemOrRoot(String message) {
		int uid = Binder.getCallingUid();
		if (!UserHandle.isSameApp(uid, Process.SYSTEM_UID) && uid != Process.ROOT_UID) {
		if (!isSystemOrRoot()) {
		throw new SecurityException("Only system may " + message);
		}
		}

		private static boolean isSystemOrRoot() {
		final int uid = Binder.getCallingUid();
		return UserHandle.isSameApp(uid, Process.SYSTEM_UID) \|\| uid == Process.ROOT_UID;
		}


		/**
		* Enforces that only the system, root UID or SystemUI can make certain calls.
		*
		* @param message used as message if SecurityException is thrown
		* @throws SecurityException if the caller is not system or root
		*/
		private static void enforceSystemRootOrSystemUI(Context context, String message) {
		if (isSystemOrRoot()) return;
		context.enforceCallingPermission(android.Manifest.permission.STATUS_BAR_SERVICE,
		message);
		}

		private final class BinderService extends IPeopleManager.Stub {

		@Override
		@@ -126,7 +143,7 @@ public class PeopleService extends SystemService {

		@Override
		public long getLastInteraction(String packageName, int userId, String shortcutId) {
		enforceSystemOrRoot("get last interaction");
		enforceSystemRootOrSystemUI(getContext(), "get last interaction");
		return mDataManager.getLastInteraction(packageName, userId, shortcutId);
		}
		}