| /* |
| * Copyright (C) 2019 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.car.developeroptions.password; |
| |
| import static com.android.car.developeroptions.Utils.SETTINGS_PACKAGE_NAME; |
| |
| import android.annotation.Nullable; |
| import android.app.ActivityManager; |
| import android.app.IActivityManager; |
| import android.content.Context; |
| import android.content.pm.PackageManager; |
| import android.os.IBinder; |
| import android.os.RemoteException; |
| import android.os.UserHandle; |
| import android.util.Log; |
| |
| import com.android.car.developeroptions.Utils; |
| |
| public final class PasswordUtils extends com.android.settingslib.Utils { |
| |
| private static final String TAG = "Settings"; |
| |
| /** |
| * Returns whether the uid which the activity with {@code activityToken} is launched from has |
| * been granted the {@code permission}. |
| */ |
| public static boolean isCallingAppPermitted(Context context, IBinder activityToken, |
| String permission) { |
| try { |
| return context.checkPermission(permission, /* pid= */ -1, |
| ActivityManager.getService().getLaunchedFromUid(activityToken)) |
| == PackageManager.PERMISSION_GRANTED; |
| } catch (RemoteException e) { |
| Log.v(TAG, "Could not talk to activity manager.", e); |
| return false; |
| } |
| } |
| |
| /** |
| * Returns the label of the package which the activity with {@code activityToken} is launched |
| * from or {@code null} if it is launched from the settings app itself. |
| */ |
| @Nullable |
| public static CharSequence getCallingAppLabel(Context context, IBinder activityToken) { |
| String pkg = getCallingAppPackageName(activityToken); |
| if (pkg == null || pkg.equals(SETTINGS_PACKAGE_NAME)) { |
| return null; |
| } |
| |
| return Utils.getApplicationLabel(context, pkg); |
| } |
| |
| /** |
| * Returns the package name which the activity with {@code activityToken} is launched from. |
| */ |
| @Nullable |
| public static String getCallingAppPackageName(IBinder activityToken) { |
| String pkg = null; |
| try { |
| pkg = ActivityManager.getService().getLaunchedFromPackage(activityToken); |
| } catch (RemoteException e) { |
| Log.v(TAG, "Could not talk to activity manager.", e); |
| } |
| return pkg; |
| } |
| |
| /** Crashes the calling application and provides it with {@code message}. */ |
| public static void crashCallingApplication(IBinder activityToken, String message) { |
| IActivityManager am = ActivityManager.getService(); |
| try { |
| int uid = am.getLaunchedFromUid(activityToken); |
| int userId = UserHandle.getUserId(uid); |
| am.crashApplication( |
| uid, |
| /* initialPid= */ -1, |
| getCallingAppPackageName(activityToken), |
| userId, |
| message, |
| /* force */ false); |
| } catch (RemoteException e) { |
| Log.v(TAG, "Could not talk to activity manager.", e); |
| } |
| } |
| } |