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.net; 19f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 20f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport java.security.Permission; 21f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport java.security.PermissionCollection; 22f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport java.util.Enumeration; 23f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport java.util.Vector; 24f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 25f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/** 26f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * This class represents a list of {@code SocketPermission} objects and provides 27f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * a method to check whether or not a specific permission is implied by this 28f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * {@code SocketPermissionCollection}. 29f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 30f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectfinal class SocketPermissionCollection extends PermissionCollection { 31f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 32f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project private static final long serialVersionUID = 2787186408602843674L; 33f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 34f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project private Vector<Permission> permissions = new Vector<Permission>(); 35f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 36f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // Constructs a new instance of this class. 37f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public SocketPermissionCollection() { 38f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project super(); 39f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 40f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 41f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // Adds the argument to the collection. 42f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project @Override 43f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public void add(Permission permission) { 44f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (isReadOnly()) { 45f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throw new IllegalStateException(); 46f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 47f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!(permission instanceof SocketPermission)) { 48f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throw new IllegalArgumentException(permission.toString()); 49f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 50f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project permissions.addElement(permission); 51f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 52f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 53f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // Returns an enumeration of the permissions 54f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project @Override 55f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public Enumeration<Permission> elements() { 56f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return permissions.elements(); 57f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 58f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 59f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 60f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns whether this permission collection implies {@code permission}. 61f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Basically it tests whether {@code permission} is the subset of this 62f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * collection. 63f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 64f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project @Override 65f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public boolean implies(Permission permission) { 66f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (!(permission instanceof SocketPermission)) { 67f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return false; 68f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 69f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project SocketPermission sp, argPerm = (SocketPermission) permission; 70f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int pmask = argPerm.actionsMask; 71f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int allMask = 0; 72f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int i = 0, count = permissions.size(); 73f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project while ((i < count) && ((allMask & pmask) != pmask)) { 74f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sp = (SocketPermission) permissions.elementAt(i); 75f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (sp.checkHost(argPerm)) { 76f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if ((sp.actionsMask & SocketPermission.SP_RESOLVE) == SocketPermission.SP_RESOLVE) { 77f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project allMask |= SocketPermission.SP_RESOLVE; 78f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 79f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // Only set flags if the port range and host can be implied 80f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if ((argPerm.portMin >= sp.portMin) 81f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project && (argPerm.portMax <= sp.portMax)) { 82f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if ((sp.actionsMask & SocketPermission.SP_CONNECT) == SocketPermission.SP_CONNECT) { 83f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project allMask |= SocketPermission.SP_CONNECT; 84f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 85f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if ((sp.actionsMask & SocketPermission.SP_ACCEPT) == SocketPermission.SP_ACCEPT) { 86f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project allMask |= SocketPermission.SP_ACCEPT; 87f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 88f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if ((sp.actionsMask & SocketPermission.SP_LISTEN) == SocketPermission.SP_LISTEN) { 89f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project allMask |= SocketPermission.SP_LISTEN; 90f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 91f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 92f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 93f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ++i; 94f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 95f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 96f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return (allMask & pmask) == pmask; 97f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 98f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 99