117 lines
4.2 KiB
Java
117 lines
4.2 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.catalina.users;
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import java.util.Hashtable;
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import javax.naming.Context;
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import javax.naming.Name;
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import javax.naming.RefAddr;
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import javax.naming.Reference;
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import javax.naming.spi.ObjectFactory;
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/**
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* <p>JNDI object creation factory for <code>MemoryUserDatabase</code>
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* instances. This makes it convenient to configure a user database
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* in the global JNDI resources associated with this Catalina instance,
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* and then link to that resource for web applications that administer
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* the contents of the user database.</p>
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*
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* <p>The <code>MemoryUserDatabase</code> instance is configured based
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* on the following parameter values:</p>
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* <ul>
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* <li><strong>pathname</strong> - Absolute or relative (to the directory
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* path specified by the <code>catalina.base</code> system property)
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* pathname to the XML file from which our user information is loaded,
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* and to which it is stored. [conf/tomcat-users.xml]</li>
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* </ul>
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*
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* @author Craig R. McClanahan
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* @since 4.1
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*/
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public class MemoryUserDatabaseFactory implements ObjectFactory {
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// --------------------------------------------------------- Public Methods
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/**
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* <p>Create and return a new <code>MemoryUserDatabase</code> instance
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* that has been configured according to the properties of the
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* specified <code>Reference</code>. If you instance can be created,
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* return <code>null</code> instead.</p>
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*
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* @param obj The possibly null object containing location or
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* reference information that can be used in creating an object
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* @param name The name of this object relative to <code>nameCtx</code>
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* @param nameCtx The context relative to which the <code>name</code>
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* parameter is specified, or <code>null</code> if <code>name</code>
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* is relative to the default initial context
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* @param environment The possibly null environment that is used in
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* creating this object
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*/
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@Override
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public Object getObjectInstance(Object obj, Name name, Context nameCtx,
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Hashtable<?,?> environment)
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throws Exception {
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// We only know how to deal with <code>javax.naming.Reference</code>s
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// that specify a class name of "org.apache.catalina.UserDatabase"
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if ((obj == null) || !(obj instanceof Reference)) {
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return null;
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}
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Reference ref = (Reference) obj;
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if (!"org.apache.catalina.UserDatabase".equals(ref.getClassName())) {
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return null;
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}
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// Create and configure a MemoryUserDatabase instance based on the
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// RefAddr values associated with this Reference
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MemoryUserDatabase database = new MemoryUserDatabase(name.toString());
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RefAddr ra = null;
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ra = ref.get("pathname");
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if (ra != null) {
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database.setPathname(ra.getContent().toString());
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}
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ra = ref.get("readonly");
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if (ra != null) {
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database.setReadonly(Boolean.parseBoolean(ra.getContent().toString()));
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}
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ra = ref.get("watchSource");
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if (ra != null) {
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database.setWatchSource(Boolean.parseBoolean(ra.getContent().toString()));
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}
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// Return the configured database instance
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database.open();
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// Don't try something we know won't work
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if (!database.getReadonly())
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database.save();
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return database;
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}
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}
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