| /* |
| * 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.shiro.jndi; |
| |
| import java.util.Properties; |
| import javax.naming.NamingException; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Convenient superclass for JNDI accessors, providing "jndiTemplate" |
| * and "jndiEnvironment" bean properties. |
| * |
| * <p>Note that this implementation is an almost exact combined copy of the Spring Framework's 'JndiAccessor' and |
| * 'JndiLocatorSupport' classes from their 2.5.4 distribution - we didn't want to re-invent the wheel, but not require |
| * a full dependency on the Spring framework, nor does Spring make available only its JNDI classes in a small jar, or |
| * we would have used that. Since Shiro is also Apache 2.0 licensed, all regular licenses and conditions and |
| * authors have remained in tact. |
| * |
| * @see #setJndiTemplate |
| * @see #setJndiEnvironment |
| * @see #setResourceRef |
| * @since 1.1 |
| */ |
| public class JndiLocator { |
| |
| /** |
| * Private class log. |
| */ |
| private static final Logger log = LoggerFactory.getLogger(JndiLocator.class); |
| |
| /** |
| * JNDI prefix used in a J2EE container |
| */ |
| public static final String CONTAINER_PREFIX = "java:comp/env/"; |
| |
| private boolean resourceRef = false; |
| |
| private JndiTemplate jndiTemplate = new JndiTemplate(); |
| |
| |
| /** |
| * Set the JNDI template to use for JNDI lookups. |
| * <p>You can also specify JNDI environment settings via "jndiEnvironment". |
| * |
| * @see #setJndiEnvironment |
| */ |
| public void setJndiTemplate(JndiTemplate jndiTemplate) { |
| this.jndiTemplate = (jndiTemplate != null ? jndiTemplate : new JndiTemplate()); |
| } |
| |
| /** |
| * Return the JNDI template to use for JNDI lookups. |
| */ |
| public JndiTemplate getJndiTemplate() { |
| return this.jndiTemplate; |
| } |
| |
| /** |
| * Set the JNDI environment to use for JNDI lookups. |
| * <p>Creates a JndiTemplate with the given environment settings. |
| * |
| * @see #setJndiTemplate |
| */ |
| public void setJndiEnvironment(Properties jndiEnvironment) { |
| this.jndiTemplate = new JndiTemplate(jndiEnvironment); |
| } |
| |
| /** |
| * Return the JNDI environment to use for JNDI lookups. |
| */ |
| public Properties getJndiEnvironment() { |
| return this.jndiTemplate.getEnvironment(); |
| } |
| |
| /** |
| * Set whether the lookup occurs in a J2EE container, i.e. if the prefix |
| * "java:comp/env/" needs to be added if the JNDI name doesn't already |
| * contain it. Default is "false". |
| * <p>Note: Will only get applied if no other scheme (e.g. "java:") is given. |
| */ |
| public void setResourceRef(boolean resourceRef) { |
| this.resourceRef = resourceRef; |
| } |
| |
| /** |
| * Return whether the lookup occurs in a J2EE container. |
| */ |
| public boolean isResourceRef() { |
| return this.resourceRef; |
| } |
| |
| |
| /** |
| * Perform an actual JNDI lookup for the given name via the JndiTemplate. |
| * <p>If the name doesn't begin with "java:comp/env/", this prefix is added |
| * if "resourceRef" is set to "true". |
| * |
| * @param jndiName the JNDI name to look up |
| * @return the obtained object |
| * @throws javax.naming.NamingException if the JNDI lookup failed |
| * @see #setResourceRef |
| */ |
| protected Object lookup(String jndiName) throws NamingException { |
| return lookup(jndiName, null); |
| } |
| |
| /** |
| * Perform an actual JNDI lookup for the given name via the JndiTemplate. |
| * <p>If the name doesn't begin with "java:comp/env/", this prefix is added |
| * if "resourceRef" is set to "true". |
| * |
| * @param jndiName the JNDI name to look up |
| * @param requiredType the required type of the object |
| * @return the obtained object |
| * @throws NamingException if the JNDI lookup failed |
| * @see #setResourceRef |
| */ |
| protected Object lookup(String jndiName, Class requiredType) throws NamingException { |
| if (jndiName == null) { |
| throw new IllegalArgumentException("jndiName argument must not be null"); |
| } |
| String convertedName = convertJndiName(jndiName); |
| Object jndiObject; |
| try { |
| jndiObject = getJndiTemplate().lookup(convertedName, requiredType); |
| } |
| catch (NamingException ex) { |
| if (!convertedName.equals(jndiName)) { |
| // Try fallback to originally specified name... |
| if (log.isDebugEnabled()) { |
| log.debug("Converted JNDI name [" + convertedName + |
| "] not found - trying original name [" + jndiName + "]. " + ex); |
| } |
| jndiObject = getJndiTemplate().lookup(jndiName, requiredType); |
| } else { |
| throw ex; |
| } |
| } |
| log.debug("Located object with JNDI name '{}'", convertedName); |
| return jndiObject; |
| } |
| |
| /** |
| * Convert the given JNDI name into the actual JNDI name to use. |
| * <p>The default implementation applies the "java:comp/env/" prefix if |
| * "resourceRef" is "true" and no other scheme (e.g. "java:") is given. |
| * |
| * @param jndiName the original JNDI name |
| * @return the JNDI name to use |
| * @see #CONTAINER_PREFIX |
| * @see #setResourceRef |
| */ |
| protected String convertJndiName(String jndiName) { |
| // Prepend container prefix if not already specified and no other scheme given. |
| if (isResourceRef() && !jndiName.startsWith(CONTAINER_PREFIX) && jndiName.indexOf(':') == -1) { |
| jndiName = CONTAINER_PREFIX + jndiName; |
| } |
| return jndiName; |
| } |
| |
| } |