1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.permissionutils; 18 19 import android.content.Context; 20 import android.content.pm.PackageInfo; 21 import android.content.pm.PackageManager; 22 import android.content.pm.PackageManager.NameNotFoundException; 23 import android.content.pm.PermissionInfo; 24 import android.os.UserHandle; 25 import android.util.Log; 26 import java.util.ArrayList; 27 import java.util.List; 28 29 /** 30 * A utility to dump or grant all revoked runtime permissions 31 */ 32 public class GrantPermissionUtil { 33 private static final String LOG_TAG = GrantPermissionUtil.class.getSimpleName(); 34 35 public static void grantAllPermissions (Context context) { 36 PackageManager pm = context.getPackageManager(); 37 for (PackageInfo pkgInfo : getPackageInfos(context)) { 38 List<String> missingPermissions = getMissingPermissions(context, pkgInfo); 39 if (!missingPermissions.isEmpty()) { 40 for (String permission : missingPermissions) { 41 pm.grantRuntimePermission(pkgInfo.packageName, permission, UserHandle.OWNER); 42 } 43 } 44 } 45 } 46 47 public static void dumpMissingPermissions (Context context) { 48 for (PackageInfo pkgInfo : getPackageInfos(context)) { 49 List<String> missingPermissions = getMissingPermissions(context, pkgInfo); 50 if (!missingPermissions.isEmpty()) { 51 Log.e(LOG_TAG, String.format("Missing permissions for %s", pkgInfo.packageName)); 52 for (String permission : missingPermissions) { 53 Log.e(LOG_TAG, " " + permission); 54 } 55 } 56 } 57 } 58 59 private static List<PackageInfo> getPackageInfos(Context context) { 60 return context.getPackageManager().getInstalledPackages(PackageManager.GET_PERMISSIONS); 61 } 62 63 private static List<String> getMissingPermissions(Context context, PackageInfo info) { 64 // No requested permissions 65 if (info.requestedPermissions == null) { 66 return new ArrayList<>(); 67 } 68 List<String> result = new ArrayList<>(); 69 PackageManager pm = context.getPackageManager(); 70 // Iterate through requested permissions for denied ones 71 for (String permission : info.requestedPermissions) { 72 PermissionInfo pi = null; 73 try { 74 pi = pm.getPermissionInfo(permission, 0); 75 } catch (NameNotFoundException nnfe) { 76 // ignore 77 } 78 if (pi == null) { 79 continue; 80 } 81 if (!isRuntime(pi)) { 82 continue; 83 } 84 int flag = pm.checkPermission(permission, info.packageName); 85 if (flag == PackageManager.PERMISSION_DENIED) { 86 result.add(permission); 87 } 88 } 89 return result; 90 } 91 92 private static boolean isRuntime(PermissionInfo pi) { 93 return (pi.protectionLevel & PermissionInfo.PROTECTION_MASK_BASE) 94 == PermissionInfo.PROTECTION_DANGEROUS; 95 } 96 } 97
