| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.naming; |
| |
| import java.util.Hashtable; |
| |
| /** |
| * Handles the access control on the JNDI contexts. |
| * |
| * @author Remy Maucherat |
| */ |
| public class ContextAccessController { |
| |
| |
| // -------------------------------------------------------------- Variables |
| |
| |
| /** |
| * Catalina context names on which writing is not allowed. |
| */ |
| private static final Hashtable<Object,Object> readOnlyContexts = |
| new Hashtable<>(); |
| |
| |
| /** |
| * Security tokens repository. |
| */ |
| private static final Hashtable<Object,Object> securityTokens = |
| new Hashtable<>(); |
| |
| |
| // --------------------------------------------------------- Public Methods |
| |
| |
| /** |
| * Set a security token for a context. Can be set only once. |
| * |
| * @param name Name of the context |
| * @param token Security token |
| */ |
| public static void setSecurityToken(Object name, Object token) { |
| SecurityManager sm = System.getSecurityManager(); |
| if (sm != null) { |
| sm.checkPermission(new RuntimePermission( |
| ContextAccessController.class.getName() |
| + ".setSecurityToken")); |
| } |
| if ((!securityTokens.containsKey(name)) && (token != null)) { |
| securityTokens.put(name, token); |
| } |
| } |
| |
| |
| /** |
| * Remove a security token for a context. |
| * |
| * @param name Name of the context |
| * @param token Security token |
| */ |
| public static void unsetSecurityToken(Object name, Object token) { |
| if (checkSecurityToken(name, token)) { |
| securityTokens.remove(name); |
| } |
| } |
| |
| |
| /** |
| * Check a submitted security token. The submitted token must be equal to |
| * the token present in the repository. If no token is present for the |
| * context, then returns true. |
| * |
| * @param name Name of the context |
| * @param token Submitted security token |
| */ |
| public static boolean checkSecurityToken |
| (Object name, Object token) { |
| Object refToken = securityTokens.get(name); |
| return (refToken == null || refToken.equals(token)); |
| } |
| |
| |
| /** |
| * Allow writing to a context. |
| * |
| * @param name Name of the context |
| * @param token Security token |
| */ |
| public static void setWritable(Object name, Object token) { |
| if (checkSecurityToken(name, token)) |
| readOnlyContexts.remove(name); |
| } |
| |
| |
| /** |
| * Set whether or not a context is writable. |
| * |
| * @param name Name of the context |
| */ |
| public static void setReadOnly(Object name) { |
| readOnlyContexts.put(name, name); |
| } |
| |
| |
| /** |
| * Returns if a context is writable. |
| * |
| * @param name Name of the context |
| */ |
| public static boolean isWritable(Object name) { |
| return !(readOnlyContexts.containsKey(name)); |
| } |
| |
| |
| } |
| |