1 /* 2 * Copyright (C) 2020 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.server.media; 18 19 import android.content.Context; 20 import android.content.pm.PackageManager; 21 import android.os.Binder; 22 23 import java.io.PrintWriter; 24 25 /** 26 * Util class for media server. 27 */ 28 class MediaServerUtils { 29 /** 30 * Verify that caller holds {@link android.Manifest.permission#DUMP}. 31 */ checkDumpPermission(Context context, String tag, PrintWriter pw)32 public static boolean checkDumpPermission(Context context, String tag, PrintWriter pw) { 33 if (context.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 34 != PackageManager.PERMISSION_GRANTED) { 35 pw.println("Permission Denial: can't dump " + tag + " from from pid=" 36 + Binder.getCallingPid() + ", uid=" + Binder.getCallingUid() 37 + " due to missing android.permission.DUMP permission"); 38 return false; 39 } else { 40 return true; 41 } 42 } 43 } 44