1f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Licensed to the Apache Software Foundation (ASF) under one or more 3f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * contributor license agreements. See the NOTICE file distributed with 4f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * this work for additional information regarding copyright ownership. 5f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The ASF licenses this file to You under the Apache License, Version 2.0 6f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (the "License"); you may not use this file except in compliance with 7f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the License. You may obtain a copy of the License at 8f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 9f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 10f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 11f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 12f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 13f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * See the License for the specific language governing permissions and 15f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * limitations under the License. 16f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 17f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 18f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectpackage java.security; 19f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 20f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport java.io.IOException; 21f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport java.io.ObjectInputStream; 22f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport java.io.ObjectOutputStream; 23f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport java.io.ObjectStreamField; 24f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport java.util.Enumeration; 25f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport java.util.NoSuchElementException; 26f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 27f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport org.apache.harmony.security.internal.nls.Messages; 28f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 29f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/** 30f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Specific {@code PermissionCollection} for storing {@code AllPermission}s. All 31f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * instances of {@code AllPermission} are equivalent, so it is enough to store a 32f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * single added instance. 33f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 34f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * @see AllPermission 35f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 36f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectfinal class AllPermissionCollection extends PermissionCollection { 37f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 38f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project private static final long serialVersionUID = -4023755556366636806L; 39f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 40f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project private static final ObjectStreamField[] serialPersistentFields = { new ObjectStreamField( 41f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "all_allowed", Boolean.TYPE), }; //$NON-NLS-1$ 42f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 43f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // Single element of collection. 44f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project private transient Permission all; 45f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 46f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 47f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Adds an {@code AllPermission} to the collection. 48f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 49e7637fe9734c4e3bece51db6773505c04e49fabaElliott Hughes @Override 50f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public void add(Permission permission) { 51f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (isReadOnly()) { 52f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throw new SecurityException(Messages.getString("security.15")); //$NON-NLS-1$ 53f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 54f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!(permission instanceof AllPermission)) { 55f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throw new IllegalArgumentException(Messages.getString("security.16", //$NON-NLS-1$ 56f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project permission)); 57f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 58f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project all = permission; 59f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 60f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 61f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 62f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns the enumeration of the collection. 63f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 64e7637fe9734c4e3bece51db6773505c04e49fabaElliott Hughes @Override 65f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public Enumeration<Permission> elements() { 66f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return new SingletonEnumeration<Permission>(all); 67f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 68f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 69f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 70f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * An auxiliary implementation for enumerating a single object. 71f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 72f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 73f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project final static class SingletonEnumeration<E> implements Enumeration<E> { 74f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 75f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project private E element; 76f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 77f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 78f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Constructor taking the single element. 79e7637fe9734c4e3bece51db6773505c04e49fabaElliott Hughes * @param single the element 80f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 81f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public SingletonEnumeration(E single) { 82f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project element = single; 83f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 84f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 85f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 86f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns true if the element is not enumerated yet. 87f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 88f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public boolean hasMoreElements() { 89f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return element != null; 90f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 91f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 92f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 93f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns the element and clears internal reference to it. 94f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 95f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public E nextElement() { 96f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (element == null) { 97f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throw new NoSuchElementException(Messages.getString("security.17")); //$NON-NLS-1$ 98f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 99f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project E last = element; 100f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project element = null; 101f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return last; 102f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 103f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 104f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 105f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 106f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Indicates whether the argument permission is implied by the receiver. 107f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * {@code AllPermission} objects imply all other permissions. 108f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 109f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * @return boolean {@code true} if the argument permission is implied by the 110f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * receiver, and {@code false} if it is not. 111f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * @param permission 112f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the permission to check. 113f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 114e7637fe9734c4e3bece51db6773505c04e49fabaElliott Hughes @Override 115f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public boolean implies(Permission permission) { 116f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return all != null; 117f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 118f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 119f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 120f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Writes the fields according to expected format, adding the boolean field 121f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * {@code all_allowed} which is {@code true} if this collection is not 122f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * empty. 123f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 124f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project private void writeObject(java.io.ObjectOutputStream out) throws IOException { 125f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ObjectOutputStream.PutField fields = out.putFields(); 126f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fields.put("all_allowed", all != null); //$NON-NLS-1$ 127f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project out.writeFields(); 128f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 129f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 130f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 131f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Restores internal state. 132f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 133f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project private void readObject(java.io.ObjectInputStream in) throws IOException, 134f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ClassNotFoundException { 135f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ObjectInputStream.GetField fields = in.readFields(); 136f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (fields.get("all_allowed", false)) { //$NON-NLS-1$ 137f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project all = new AllPermission(); 138f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 139f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 140e7637fe9734c4e3bece51db6773505c04e49fabaElliott Hughes} 141