Merge "Enforce that callers to matchesCallFilter have either listener access... (43bfb312) · Commits · e / os / android_frameworks_base

core/java/android/app/NotificationManager.java

+3 −0

Original line number	Diff line number	Diff line
		@@ -2579,6 +2579,9 @@ public class NotificationManager {
		* for more information.
		* </p>
		* <p>
		* Callers of this method must have notification listener access or permission to read contacts.
		* </p>
		* <p>
		* NOTE: This method calls into Contacts, which may take some time, and should not be called
		* on the main thread.
		* </p>

services/core/java/com/android/server/notification/NotificationManagerService.java

+38 −0

Original line number	Diff line number	Diff line
		@@ -5083,6 +5083,27 @@ public class NotificationManagerService extends SystemService {

		@Override
		public boolean matchesCallFilter(Bundle extras) {
		// Because matchesCallFilter may use contact data to filter calls, the callers of this
		// method need to either have notification listener access or permission to read
		// contacts.
		boolean listenerAccess = false;
		try {
		String[] pkgNames = mPackageManager.getPackagesForUid(Binder.getCallingUid());
		for (int i = 0; i < pkgNames.length; i++) {
		// in most cases there should only be one package here
		listenerAccess \|= mListeners.hasAllowedListener(pkgNames[i],
		Binder.getCallingUserHandle().getIdentifier());
		}
		} catch (RemoteException e) {
		} finally {
		if (!listenerAccess) {
		getContext().enforceCallingPermission(
		Manifest.permission.READ_CONTACTS,
		"matchesCallFilter requires listener permissions or "
		+ "contacts read access");
		}
		}

		return mZenModeHelper.matchesCallFilter(
		Binder.getCallingUserHandle(),
		extras,
		@@ -10954,6 +10975,23 @@ public class NotificationManagerService extends SystemService {
		}
		return false;
		}

		// Returns whether there is a component with listener access granted that is associated
		// with the given package name / user ID.
		boolean hasAllowedListener(String packageName, int userId) {
		if (packageName == null) {
		return false;
		}

		// Loop through allowed components to compare package names
		List<ComponentName> allowedComponents = getAllowedComponents(userId);
		for (int i = 0; i < allowedComponents.size(); i++) {
		if (allowedComponents.get(i).getPackageName().equals(packageName)) {
		return true;
		}
		}
		return false;
		}
		}

		// TODO (b/194833441): remove when we've fully migrated to a permission

services/tests/uiservicestests/src/com/android/server/notification/NotificationListenersTest.java

+18 −3

Original line number	Diff line number	Diff line
		@@ -24,8 +24,9 @@ import static com.android.server.notification.NotificationManagerService.Notific

		import static com.google.common.truth.Truth.assertThat;

		import static org.mockito.ArgumentMatchers.any;
		import static org.mockito.ArgumentMatchers.anyInt;
		import static junit.framework.Assert.assertFalse;
		import static junit.framework.Assert.assertTrue;

		import static org.mockito.Mockito.mock;
		import static org.mockito.Mockito.spy;
		import static org.mockito.Mockito.when;
		@@ -41,7 +42,6 @@ import android.service.notification.NotificationListenerFilter;
		import android.service.notification.NotificationListenerService;
		import android.util.ArraySet;
		import android.util.Pair;
		import android.util.Slog;
		import android.util.TypedXmlPullParser;
		import android.util.TypedXmlSerializer;
		import android.util.Xml;
		@@ -355,4 +355,19 @@ public class NotificationListenersTest extends UiServiceTestCase {
		.getDisallowedPackages()).isEmpty();
		}

		@Test
		public void testHasAllowedListener() {
		final int uid1 = 1, uid2 = 2;
		// enable mCn1 but not mCn2 for uid1
		mListeners.addApprovedList(mCn1.flattenToString(), uid1, true);

		// verify that:
		// the package for mCn1 has an allowed listener for uid1 and not uid2
		assertTrue(mListeners.hasAllowedListener(mCn1.getPackageName(), uid1));
		assertFalse(mListeners.hasAllowedListener(mCn1.getPackageName(), uid2));

		// and that mCn2 has no allowed listeners for either user id
		assertFalse(mListeners.hasAllowedListener(mCn2.getPackageName(), uid1));
		assertFalse(mListeners.hasAllowedListener(mCn2.getPackageName(), uid2));
		}
		}

services/tests/uiservicestests/src/com/android/server/notification/NotificationManagerServiceTest.java

+49 −0

Original line number	Diff line number	Diff line
		@@ -8356,4 +8356,53 @@ public class NotificationManagerServiceTest extends UiServiceTestCase {
		verify(mPermissionHelper, never()).hasPermission(anyInt());
		verify(mPreferencesHelper, never()).getNotificationChannelsBypassingDnd(PKG, mUid);
		}

		@Test
		public void testMatchesCallFilter_noPermissionShouldThrow() throws Exception {
		// make sure a caller without listener access or read_contacts permission can't call
		// matchesCallFilter.
		when(mListeners.hasAllowedListener(anyString(), anyInt())).thenReturn(false);
		doThrow(new SecurityException()).when(mContext).enforceCallingPermission(
		eq("android.permission.READ_CONTACTS"), anyString());

		try {
		// shouldn't matter what we're passing in, if we get past this line fail immediately
		((INotificationManager) mService.mService).matchesCallFilter(null);
		fail("call to matchesCallFilter with no permissions should fail");
		} catch (SecurityException e) {
		// pass
		}
		}

		@Test
		public void testMatchesCallFilter_hasListenerPermission() throws Exception {
		// make sure a caller with only listener access and not read_contacts permission can call
		// matchesCallFilter.
		when(mListeners.hasAllowedListener(anyString(), anyInt())).thenReturn(true);
		doThrow(new SecurityException()).when(mContext).enforceCallingPermission(
		eq("android.permission.READ_CONTACTS"), anyString());

		try {
		((INotificationManager) mService.mService).matchesCallFilter(null);
		// pass, this is not a functionality test
		} catch (SecurityException e) {
		fail("call to matchesCallFilter with listener permissions should work");
		}
		}

		@Test
		public void testMatchesCallFilter_hasContactsPermission() throws Exception {
		// make sure a caller with only read_contacts permission and not listener access can call
		// matchesCallFilter.
		when(mListeners.hasAllowedListener(anyString(), anyInt())).thenReturn(false);
		doNothing().when(mContext).enforceCallingPermission(
		eq("android.permission.READ_CONTACTS"), anyString());

		try {
		((INotificationManager) mService.mService).matchesCallFilter(null);
		// pass, this is not a functionality test
		} catch (SecurityException e) {
		fail("call to matchesCallFilter with listener permissions should work");
		}
		}
		}