| <!DOCTYPE HTML> |
| <html lang="en"> |
| <head> |
| <title>Source code</title> |
| <link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="Style"> |
| </head> |
| <body> |
| <main role="main"> |
| <div class="sourceContainer"> |
| <pre><span class="sourceLineNo">001</span><a id="line.1">/*</a> |
| <span class="sourceLineNo">002</span><a id="line.2"> * Licensed to the Apache Software Foundation (ASF) under one</a> |
| <span class="sourceLineNo">003</span><a id="line.3"> * or more contributor license agreements. See the NOTICE file</a> |
| <span class="sourceLineNo">004</span><a id="line.4"> * distributed with this work for additional information</a> |
| <span class="sourceLineNo">005</span><a id="line.5"> * regarding copyright ownership. The ASF licenses this file</a> |
| <span class="sourceLineNo">006</span><a id="line.6"> * to you under the Apache License, Version 2.0 (the</a> |
| <span class="sourceLineNo">007</span><a id="line.7"> * "License"); you may not use this file except in compliance</a> |
| <span class="sourceLineNo">008</span><a id="line.8"> * with the License. You may obtain a copy of the License at</a> |
| <span class="sourceLineNo">009</span><a id="line.9"> *</a> |
| <span class="sourceLineNo">010</span><a id="line.10"> * http://www.apache.org/licenses/LICENSE-2.0</a> |
| <span class="sourceLineNo">011</span><a id="line.11"> *</a> |
| <span class="sourceLineNo">012</span><a id="line.12"> * Unless required by applicable law or agreed to in writing,</a> |
| <span class="sourceLineNo">013</span><a id="line.13"> * software distributed under the License is distributed on an</a> |
| <span class="sourceLineNo">014</span><a id="line.14"> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</a> |
| <span class="sourceLineNo">015</span><a id="line.15"> * KIND, either express or implied. See the License for the</a> |
| <span class="sourceLineNo">016</span><a id="line.16"> * specific language governing permissions and limitations</a> |
| <span class="sourceLineNo">017</span><a id="line.17"> * under the License.</a> |
| <span class="sourceLineNo">018</span><a id="line.18"> */</a> |
| <span class="sourceLineNo">019</span><a id="line.19">package org.apache.shiro.realm.ldap;</a> |
| <span class="sourceLineNo">020</span><a id="line.20"></a> |
| <span class="sourceLineNo">021</span><a id="line.21">import org.apache.shiro.authc.AuthenticationException;</a> |
| <span class="sourceLineNo">022</span><a id="line.22">import org.apache.shiro.authc.AuthenticationInfo;</a> |
| <span class="sourceLineNo">023</span><a id="line.23">import org.apache.shiro.authc.AuthenticationToken;</a> |
| <span class="sourceLineNo">024</span><a id="line.24">import org.apache.shiro.authc.SimpleAuthenticationInfo;</a> |
| <span class="sourceLineNo">025</span><a id="line.25">import org.apache.shiro.authc.credential.AllowAllCredentialsMatcher;</a> |
| <span class="sourceLineNo">026</span><a id="line.26">import org.apache.shiro.authz.AuthorizationException;</a> |
| <span class="sourceLineNo">027</span><a id="line.27">import org.apache.shiro.authz.AuthorizationInfo;</a> |
| <span class="sourceLineNo">028</span><a id="line.28">import org.apache.shiro.ldap.UnsupportedAuthenticationMechanismException;</a> |
| <span class="sourceLineNo">029</span><a id="line.29">import org.apache.shiro.realm.AuthorizingRealm;</a> |
| <span class="sourceLineNo">030</span><a id="line.30">import org.apache.shiro.subject.PrincipalCollection;</a> |
| <span class="sourceLineNo">031</span><a id="line.31">import org.apache.shiro.util.StringUtils;</a> |
| <span class="sourceLineNo">032</span><a id="line.32">import org.slf4j.Logger;</a> |
| <span class="sourceLineNo">033</span><a id="line.33">import org.slf4j.LoggerFactory;</a> |
| <span class="sourceLineNo">034</span><a id="line.34"></a> |
| <span class="sourceLineNo">035</span><a id="line.35">import javax.naming.AuthenticationNotSupportedException;</a> |
| <span class="sourceLineNo">036</span><a id="line.36">import javax.naming.NamingException;</a> |
| <span class="sourceLineNo">037</span><a id="line.37">import javax.naming.ldap.LdapContext;</a> |
| <span class="sourceLineNo">038</span><a id="line.38"></a> |
| <span class="sourceLineNo">039</span><a id="line.39">/**</a> |
| <span class="sourceLineNo">040</span><a id="line.40"> * An LDAP {@link org.apache.shiro.realm.Realm Realm} implementation utilizing Sun's/Oracle's</a> |
| <span class="sourceLineNo">041</span><a id="line.41"> * <a href="http://download-llnw.oracle.com/javase/tutorial/jndi/ldap/jndi.html">JNDI API as an LDAP API</a>. This is</a> |
| <span class="sourceLineNo">042</span><a id="line.42"> * Shiro's default implementation for supporting LDAP, as using the JNDI API has been a common approach for Java LDAP</a> |
| <span class="sourceLineNo">043</span><a id="line.43"> * support for many years.</a> |
| <span class="sourceLineNo">044</span><a id="line.44"> * <p/></a> |
| <span class="sourceLineNo">045</span><a id="line.45"> * This realm implementation and its backing {@link JndiLdapContextFactory} should cover 99% of all Shiro-related LDAP</a> |
| <span class="sourceLineNo">046</span><a id="line.46"> * authentication and authorization needs. However, if it does not suit your needs, you might want to look into</a> |
| <span class="sourceLineNo">047</span><a id="line.47"> * creating your own realm using an alternative, perhaps more robust, LDAP communication API, such as the</a> |
| <span class="sourceLineNo">048</span><a id="line.48"> * <a href="http://directory.apache.org/api/">Apache LDAP API</a>.</a> |
| <span class="sourceLineNo">049</span><a id="line.49"> * <h2>Authentication</h2></a> |
| <span class="sourceLineNo">050</span><a id="line.50"> * During an authentication attempt, if the submitted {@code AuthenticationToken}'s</a> |
| <span class="sourceLineNo">051</span><a id="line.51"> * {@link org.apache.shiro.authc.AuthenticationToken#getPrincipal() principal} is a simple username, but the</a> |
| <span class="sourceLineNo">052</span><a id="line.52"> * LDAP directory expects a complete User Distinguished Name (User DN) to establish a connection, the</a> |
| <span class="sourceLineNo">053</span><a id="line.53"> * {@link #setUserDnTemplate(String) userDnTemplate} property must be configured. If not configured,</a> |
| <span class="sourceLineNo">054</span><a id="line.54"> * the property will pass the simple username directly as the User DN, which is often incorrect in most LDAP</a> |
| <span class="sourceLineNo">055</span><a id="line.55"> * environments (maybe Microsoft ActiveDirectory being the exception).</a> |
| <span class="sourceLineNo">056</span><a id="line.56"> * <h2>Authorization</h2></a> |
| <span class="sourceLineNo">057</span><a id="line.57"> * By default, authorization is effectively disabled due to the default</a> |
| <span class="sourceLineNo">058</span><a id="line.58"> * {@link #doGetAuthorizationInfo(org.apache.shiro.subject.PrincipalCollection)} implementation returning {@code null}.</a> |
| <span class="sourceLineNo">059</span><a id="line.59"> * If you wish to perform authorization based on an LDAP schema, you must subclass this one</a> |
| <span class="sourceLineNo">060</span><a id="line.60"> * and override that method to reflect your organization's data model.</a> |
| <span class="sourceLineNo">061</span><a id="line.61"> * <h2>Configuration</h2></a> |
| <span class="sourceLineNo">062</span><a id="line.62"> * This class primarily provides the {@link #setUserDnTemplate(String) userDnTemplate} property to allow you to specify</a> |
| <span class="sourceLineNo">063</span><a id="line.63"> * the your LDAP server's User DN format. Most other configuration is performed via the nested</a> |
| <span class="sourceLineNo">064</span><a id="line.64"> * {@link LdapContextFactory contextFactory} property.</a> |
| <span class="sourceLineNo">065</span><a id="line.65"> * <p/></a> |
| <span class="sourceLineNo">066</span><a id="line.66"> * For example, defining this realm in Shiro .ini:</a> |
| <span class="sourceLineNo">067</span><a id="line.67"> * <pre></a> |
| <span class="sourceLineNo">068</span><a id="line.68"> * [main]</a> |
| <span class="sourceLineNo">069</span><a id="line.69"> * ldapRealm = org.apache.shiro.realm.ldap.DefaultLdapRealm</a> |
| <span class="sourceLineNo">070</span><a id="line.70"> * ldapRealm.userDnTemplate = uid={0},ou=users,dc=mycompany,dc=com</a> |
| <span class="sourceLineNo">071</span><a id="line.71"> * ldapRealm.contextFactory.url = ldap://ldapHost:389</a> |
| <span class="sourceLineNo">072</span><a id="line.72"> * ldapRealm.contextFactory.authenticationMechanism = DIGEST-MD5</a> |
| <span class="sourceLineNo">073</span><a id="line.73"> * ldapRealm.contextFactory.environment[some.obscure.jndi.key] = some value</a> |
| <span class="sourceLineNo">074</span><a id="line.74"> * ...</a> |
| <span class="sourceLineNo">075</span><a id="line.75"> * </pre></a> |
| <span class="sourceLineNo">076</span><a id="line.76"> * The default {@link #setContextFactory contextFactory} instance is a {@link JndiLdapContextFactory}. See that</a> |
| <span class="sourceLineNo">077</span><a id="line.77"> * class's JavaDoc for more information on configuring the LDAP connection as well as specifying JNDI environment</a> |
| <span class="sourceLineNo">078</span><a id="line.78"> * properties as necessary.</a> |
| <span class="sourceLineNo">079</span><a id="line.79"> *</a> |
| <span class="sourceLineNo">080</span><a id="line.80"> * @see JndiLdapContextFactory</a> |
| <span class="sourceLineNo">081</span><a id="line.81"> *</a> |
| <span class="sourceLineNo">082</span><a id="line.82"> * @since 1.3</a> |
| <span class="sourceLineNo">083</span><a id="line.83"> */</a> |
| <span class="sourceLineNo">084</span><a id="line.84">public class DefaultLdapRealm extends AuthorizingRealm {</a> |
| <span class="sourceLineNo">085</span><a id="line.85"></a> |
| <span class="sourceLineNo">086</span><a id="line.86"> private static final Logger log = LoggerFactory.getLogger(DefaultLdapRealm.class);</a> |
| <span class="sourceLineNo">087</span><a id="line.87"></a> |
| <span class="sourceLineNo">088</span><a id="line.88"> //The zero index currently means nothing, but could be utilized in the future for other substitution techniques.</a> |
| <span class="sourceLineNo">089</span><a id="line.89"> private static final String USERDN_SUBSTITUTION_TOKEN = "{0}";</a> |
| <span class="sourceLineNo">090</span><a id="line.90"></a> |
| <span class="sourceLineNo">091</span><a id="line.91"> private String userDnPrefix;</a> |
| <span class="sourceLineNo">092</span><a id="line.92"> private String userDnSuffix;</a> |
| <span class="sourceLineNo">093</span><a id="line.93"></a> |
| <span class="sourceLineNo">094</span><a id="line.94"> /*--------------------------------------------</a> |
| <span class="sourceLineNo">095</span><a id="line.95"> | I N S T A N C E V A R I A B L E S |</a> |
| <span class="sourceLineNo">096</span><a id="line.96"> ============================================*/</a> |
| <span class="sourceLineNo">097</span><a id="line.97"> /**</a> |
| <span class="sourceLineNo">098</span><a id="line.98"> * The LdapContextFactory instance used to acquire {@link javax.naming.ldap.LdapContext LdapContext}'s at runtime</a> |
| <span class="sourceLineNo">099</span><a id="line.99"> * to acquire connections to the LDAP directory to perform authentication attempts and authorizatino queries.</a> |
| <span class="sourceLineNo">100</span><a id="line.100"> */</a> |
| <span class="sourceLineNo">101</span><a id="line.101"> private LdapContextFactory contextFactory;</a> |
| <span class="sourceLineNo">102</span><a id="line.102"></a> |
| <span class="sourceLineNo">103</span><a id="line.103"> /*--------------------------------------------</a> |
| <span class="sourceLineNo">104</span><a id="line.104"> | C O N S T R U C T O R S |</a> |
| <span class="sourceLineNo">105</span><a id="line.105"> ============================================*/</a> |
| <span class="sourceLineNo">106</span><a id="line.106"></a> |
| <span class="sourceLineNo">107</span><a id="line.107"> /**</a> |
| <span class="sourceLineNo">108</span><a id="line.108"> * Default no-argument constructor that defaults the internal {@link LdapContextFactory} instance to a</a> |
| <span class="sourceLineNo">109</span><a id="line.109"> * {@link JndiLdapContextFactory}.</a> |
| <span class="sourceLineNo">110</span><a id="line.110"> */</a> |
| <span class="sourceLineNo">111</span><a id="line.111"> public DefaultLdapRealm() {</a> |
| <span class="sourceLineNo">112</span><a id="line.112"> //Credentials Matching is not necessary - the LDAP directory will do it automatically:</a> |
| <span class="sourceLineNo">113</span><a id="line.113"> setCredentialsMatcher(new AllowAllCredentialsMatcher());</a> |
| <span class="sourceLineNo">114</span><a id="line.114"> //Any Object principal and Object credentials may be passed to the LDAP provider, so accept any token:</a> |
| <span class="sourceLineNo">115</span><a id="line.115"> setAuthenticationTokenClass(AuthenticationToken.class);</a> |
| <span class="sourceLineNo">116</span><a id="line.116"> this.contextFactory = new JndiLdapContextFactory();</a> |
| <span class="sourceLineNo">117</span><a id="line.117"> }</a> |
| <span class="sourceLineNo">118</span><a id="line.118"></a> |
| <span class="sourceLineNo">119</span><a id="line.119"> /*--------------------------------------------</a> |
| <span class="sourceLineNo">120</span><a id="line.120"> | A C C E S S O R S / M O D I F I E R S |</a> |
| <span class="sourceLineNo">121</span><a id="line.121"> ============================================*/</a> |
| <span class="sourceLineNo">122</span><a id="line.122"></a> |
| <span class="sourceLineNo">123</span><a id="line.123"> /**</a> |
| <span class="sourceLineNo">124</span><a id="line.124"> * Returns the User DN prefix to use when building a runtime User DN value or {@code null} if no</a> |
| <span class="sourceLineNo">125</span><a id="line.125"> * {@link #getUserDnTemplate() userDnTemplate} has been configured. If configured, this value is the text that</a> |
| <span class="sourceLineNo">126</span><a id="line.126"> * occurs before the {@link #USERDN_SUBSTITUTION_TOKEN} in the {@link #getUserDnTemplate() userDnTemplate} value.</a> |
| <span class="sourceLineNo">127</span><a id="line.127"> *</a> |
| <span class="sourceLineNo">128</span><a id="line.128"> * @return the the User DN prefix to use when building a runtime User DN value or {@code null} if no</a> |
| <span class="sourceLineNo">129</span><a id="line.129"> * {@link #getUserDnTemplate() userDnTemplate} has been configured.</a> |
| <span class="sourceLineNo">130</span><a id="line.130"> */</a> |
| <span class="sourceLineNo">131</span><a id="line.131"> protected String getUserDnPrefix() {</a> |
| <span class="sourceLineNo">132</span><a id="line.132"> return userDnPrefix;</a> |
| <span class="sourceLineNo">133</span><a id="line.133"> }</a> |
| <span class="sourceLineNo">134</span><a id="line.134"></a> |
| <span class="sourceLineNo">135</span><a id="line.135"> /**</a> |
| <span class="sourceLineNo">136</span><a id="line.136"> * Returns the User DN suffix to use when building a runtime User DN value. or {@code null} if no</a> |
| <span class="sourceLineNo">137</span><a id="line.137"> * {@link #getUserDnTemplate() userDnTemplate} has been configured. If configured, this value is the text that</a> |
| <span class="sourceLineNo">138</span><a id="line.138"> * occurs after the {@link #USERDN_SUBSTITUTION_TOKEN} in the {@link #getUserDnTemplate() userDnTemplate} value.</a> |
| <span class="sourceLineNo">139</span><a id="line.139"> *</a> |
| <span class="sourceLineNo">140</span><a id="line.140"> * @return the User DN suffix to use when building a runtime User DN value or {@code null} if no</a> |
| <span class="sourceLineNo">141</span><a id="line.141"> * {@link #getUserDnTemplate() userDnTemplate} has been configured.</a> |
| <span class="sourceLineNo">142</span><a id="line.142"> */</a> |
| <span class="sourceLineNo">143</span><a id="line.143"> protected String getUserDnSuffix() {</a> |
| <span class="sourceLineNo">144</span><a id="line.144"> return userDnSuffix;</a> |
| <span class="sourceLineNo">145</span><a id="line.145"> }</a> |
| <span class="sourceLineNo">146</span><a id="line.146"></a> |
| <span class="sourceLineNo">147</span><a id="line.147"> /*--------------------------------------------</a> |
| <span class="sourceLineNo">148</span><a id="line.148"> | M E T H O D S |</a> |
| <span class="sourceLineNo">149</span><a id="line.149"> ============================================*/</a> |
| <span class="sourceLineNo">150</span><a id="line.150"></a> |
| <span class="sourceLineNo">151</span><a id="line.151"> /**</a> |
| <span class="sourceLineNo">152</span><a id="line.152"> * Sets the User Distinguished Name (DN) template to use when creating User DNs at runtime. A User DN is an LDAP</a> |
| <span class="sourceLineNo">153</span><a id="line.153"> * fully-qualified unique user identifier which is required to establish a connection with the LDAP</a> |
| <span class="sourceLineNo">154</span><a id="line.154"> * directory to authenticate users and query for authorization information.</a> |
| <span class="sourceLineNo">155</span><a id="line.155"> * <h2>Usage</h2></a> |
| <span class="sourceLineNo">156</span><a id="line.156"> * User DN formats are unique to the LDAP directory's schema, and each environment differs - you will need to</a> |
| <span class="sourceLineNo">157</span><a id="line.157"> * specify the format corresponding to your directory. You do this by specifying the full User DN as normal, but</a> |
| <span class="sourceLineNo">158</span><a id="line.158"> * but you use a <b>{@code {0}}</b> placeholder token in the string representing the location where the</a> |
| <span class="sourceLineNo">159</span><a id="line.159"> * user's submitted principal (usually a username or uid) will be substituted at runtime.</a> |
| <span class="sourceLineNo">160</span><a id="line.160"> * <p/></a> |
| <span class="sourceLineNo">161</span><a id="line.161"> * For example, if your directory</a> |
| <span class="sourceLineNo">162</span><a id="line.162"> * uses an LDAP {@code uid} attribute to represent usernames, the User DN for the {@code jsmith} user may look like</a> |
| <span class="sourceLineNo">163</span><a id="line.163"> * this:</a> |
| <span class="sourceLineNo">164</span><a id="line.164"> * <p/></a> |
| <span class="sourceLineNo">165</span><a id="line.165"> * <pre>uid=jsmith,ou=users,dc=mycompany,dc=com</pre></a> |
| <span class="sourceLineNo">166</span><a id="line.166"> * <p/></a> |
| <span class="sourceLineNo">167</span><a id="line.167"> * in which case you would set this property with the following template value:</a> |
| <span class="sourceLineNo">168</span><a id="line.168"> * <p/></a> |
| <span class="sourceLineNo">169</span><a id="line.169"> * <pre>uid=<b>{0}</b>,ou=users,dc=mycompany,dc=com</pre></a> |
| <span class="sourceLineNo">170</span><a id="line.170"> * <p/></a> |
| <span class="sourceLineNo">171</span><a id="line.171"> * If no template is configured, the raw {@code AuthenticationToken}</a> |
| <span class="sourceLineNo">172</span><a id="line.172"> * {@link AuthenticationToken#getPrincipal() principal} will be used as the LDAP principal. This is likely</a> |
| <span class="sourceLineNo">173</span><a id="line.173"> * incorrect as most LDAP directories expect a fully-qualified User DN as opposed to the raw uid or username. So,</a> |
| <span class="sourceLineNo">174</span><a id="line.174"> * ensure you set this property to match your environment!</a> |
| <span class="sourceLineNo">175</span><a id="line.175"> *</a> |
| <span class="sourceLineNo">176</span><a id="line.176"> * @param template the User Distinguished Name template to use for runtime substitution</a> |
| <span class="sourceLineNo">177</span><a id="line.177"> * @throws IllegalArgumentException if the template is null, empty, or does not contain the</a> |
| <span class="sourceLineNo">178</span><a id="line.178"> * {@code {0}} substitution token.</a> |
| <span class="sourceLineNo">179</span><a id="line.179"> * @see LdapContextFactory#getLdapContext(Object,Object)</a> |
| <span class="sourceLineNo">180</span><a id="line.180"> */</a> |
| <span class="sourceLineNo">181</span><a id="line.181"> public void setUserDnTemplate(String template) throws IllegalArgumentException {</a> |
| <span class="sourceLineNo">182</span><a id="line.182"> if (!StringUtils.hasText(template)) {</a> |
| <span class="sourceLineNo">183</span><a id="line.183"> String msg = "User DN template cannot be null or empty.";</a> |
| <span class="sourceLineNo">184</span><a id="line.184"> throw new IllegalArgumentException(msg);</a> |
| <span class="sourceLineNo">185</span><a id="line.185"> }</a> |
| <span class="sourceLineNo">186</span><a id="line.186"> int index = template.indexOf(USERDN_SUBSTITUTION_TOKEN);</a> |
| <span class="sourceLineNo">187</span><a id="line.187"> if (index < 0) {</a> |
| <span class="sourceLineNo">188</span><a id="line.188"> String msg = "User DN template must contain the '" +</a> |
| <span class="sourceLineNo">189</span><a id="line.189"> USERDN_SUBSTITUTION_TOKEN + "' replacement token to understand where to " +</a> |
| <span class="sourceLineNo">190</span><a id="line.190"> "insert the runtime authentication principal.";</a> |
| <span class="sourceLineNo">191</span><a id="line.191"> throw new IllegalArgumentException(msg);</a> |
| <span class="sourceLineNo">192</span><a id="line.192"> }</a> |
| <span class="sourceLineNo">193</span><a id="line.193"> String prefix = template.substring(0, index);</a> |
| <span class="sourceLineNo">194</span><a id="line.194"> String suffix = template.substring(prefix.length() + USERDN_SUBSTITUTION_TOKEN.length());</a> |
| <span class="sourceLineNo">195</span><a id="line.195"> if (log.isDebugEnabled()) {</a> |
| <span class="sourceLineNo">196</span><a id="line.196"> log.debug("Determined user DN prefix [{}] and suffix [{}]", prefix, suffix);</a> |
| <span class="sourceLineNo">197</span><a id="line.197"> }</a> |
| <span class="sourceLineNo">198</span><a id="line.198"> this.userDnPrefix = prefix;</a> |
| <span class="sourceLineNo">199</span><a id="line.199"> this.userDnSuffix = suffix;</a> |
| <span class="sourceLineNo">200</span><a id="line.200"> }</a> |
| <span class="sourceLineNo">201</span><a id="line.201"></a> |
| <span class="sourceLineNo">202</span><a id="line.202"> /**</a> |
| <span class="sourceLineNo">203</span><a id="line.203"> * Returns the User Distinguished Name (DN) template to use when creating User DNs at runtime - see the</a> |
| <span class="sourceLineNo">204</span><a id="line.204"> * {@link #setUserDnTemplate(String) setUserDnTemplate} JavaDoc for a full explanation.</a> |
| <span class="sourceLineNo">205</span><a id="line.205"> *</a> |
| <span class="sourceLineNo">206</span><a id="line.206"> * @return the User Distinguished Name (DN) template to use when creating User DNs at runtime.</a> |
| <span class="sourceLineNo">207</span><a id="line.207"> */</a> |
| <span class="sourceLineNo">208</span><a id="line.208"> public String getUserDnTemplate() {</a> |
| <span class="sourceLineNo">209</span><a id="line.209"> return getUserDn(USERDN_SUBSTITUTION_TOKEN);</a> |
| <span class="sourceLineNo">210</span><a id="line.210"> }</a> |
| <span class="sourceLineNo">211</span><a id="line.211"></a> |
| <span class="sourceLineNo">212</span><a id="line.212"> /**</a> |
| <span class="sourceLineNo">213</span><a id="line.213"> * Returns the LDAP User Distinguished Name (DN) to use when acquiring an</a> |
| <span class="sourceLineNo">214</span><a id="line.214"> * {@link javax.naming.ldap.LdapContext LdapContext} from the {@link LdapContextFactory}.</a> |
| <span class="sourceLineNo">215</span><a id="line.215"> * <p/></a> |
| <span class="sourceLineNo">216</span><a id="line.216"> * If the the {@link #getUserDnTemplate() userDnTemplate} property has been set, this implementation will construct</a> |
| <span class="sourceLineNo">217</span><a id="line.217"> * the User DN by substituting the specified {@code principal} into the configured template. If the</a> |
| <span class="sourceLineNo">218</span><a id="line.218"> * {@link #getUserDnTemplate() userDnTemplate} has not been set, the method argument will be returned directly</a> |
| <span class="sourceLineNo">219</span><a id="line.219"> * (indicating that the submitted authentication token principal <em>is</em> the User DN).</a> |
| <span class="sourceLineNo">220</span><a id="line.220"> *</a> |
| <span class="sourceLineNo">221</span><a id="line.221"> * @param principal the principal to substitute into the configured {@link #getUserDnTemplate() userDnTemplate}.</a> |
| <span class="sourceLineNo">222</span><a id="line.222"> * @return the constructed User DN to use at runtime when acquiring an {@link javax.naming.ldap.LdapContext}.</a> |
| <span class="sourceLineNo">223</span><a id="line.223"> * @throws IllegalArgumentException if the method argument is null or empty</a> |
| <span class="sourceLineNo">224</span><a id="line.224"> * @throws IllegalStateException if the {@link #getUserDnTemplate userDnTemplate} has not been set.</a> |
| <span class="sourceLineNo">225</span><a id="line.225"> * @see LdapContextFactory#getLdapContext(Object, Object)</a> |
| <span class="sourceLineNo">226</span><a id="line.226"> */</a> |
| <span class="sourceLineNo">227</span><a id="line.227"> protected String getUserDn(String principal) throws IllegalArgumentException, IllegalStateException {</a> |
| <span class="sourceLineNo">228</span><a id="line.228"> if (!StringUtils.hasText(principal)) {</a> |
| <span class="sourceLineNo">229</span><a id="line.229"> throw new IllegalArgumentException("User principal cannot be null or empty for User DN construction.");</a> |
| <span class="sourceLineNo">230</span><a id="line.230"> }</a> |
| <span class="sourceLineNo">231</span><a id="line.231"> String prefix = getUserDnPrefix();</a> |
| <span class="sourceLineNo">232</span><a id="line.232"> String suffix = getUserDnSuffix();</a> |
| <span class="sourceLineNo">233</span><a id="line.233"> if (prefix == null && suffix == null) {</a> |
| <span class="sourceLineNo">234</span><a id="line.234"> log.debug("userDnTemplate property has not been configured, indicating the submitted " +</a> |
| <span class="sourceLineNo">235</span><a id="line.235"> "AuthenticationToken's principal is the same as the User DN. Returning the method argument " +</a> |
| <span class="sourceLineNo">236</span><a id="line.236"> "as is.");</a> |
| <span class="sourceLineNo">237</span><a id="line.237"> return principal;</a> |
| <span class="sourceLineNo">238</span><a id="line.238"> }</a> |
| <span class="sourceLineNo">239</span><a id="line.239"></a> |
| <span class="sourceLineNo">240</span><a id="line.240"> int prefixLength = prefix != null ? prefix.length() : 0;</a> |
| <span class="sourceLineNo">241</span><a id="line.241"> int suffixLength = suffix != null ? suffix.length() : 0;</a> |
| <span class="sourceLineNo">242</span><a id="line.242"> StringBuilder sb = new StringBuilder(prefixLength + principal.length() + suffixLength);</a> |
| <span class="sourceLineNo">243</span><a id="line.243"> if (prefixLength > 0) {</a> |
| <span class="sourceLineNo">244</span><a id="line.244"> sb.append(prefix);</a> |
| <span class="sourceLineNo">245</span><a id="line.245"> }</a> |
| <span class="sourceLineNo">246</span><a id="line.246"> sb.append(principal);</a> |
| <span class="sourceLineNo">247</span><a id="line.247"> if (suffixLength > 0) {</a> |
| <span class="sourceLineNo">248</span><a id="line.248"> sb.append(suffix);</a> |
| <span class="sourceLineNo">249</span><a id="line.249"> }</a> |
| <span class="sourceLineNo">250</span><a id="line.250"> return sb.toString();</a> |
| <span class="sourceLineNo">251</span><a id="line.251"> }</a> |
| <span class="sourceLineNo">252</span><a id="line.252"></a> |
| <span class="sourceLineNo">253</span><a id="line.253"> /**</a> |
| <span class="sourceLineNo">254</span><a id="line.254"> * Sets the LdapContextFactory instance used to acquire connections to the LDAP directory during authentication</a> |
| <span class="sourceLineNo">255</span><a id="line.255"> * attempts and authorization queries. Unless specified otherwise, the default is a {@link JndiLdapContextFactory}</a> |
| <span class="sourceLineNo">256</span><a id="line.256"> * instance.</a> |
| <span class="sourceLineNo">257</span><a id="line.257"> *</a> |
| <span class="sourceLineNo">258</span><a id="line.258"> * @param contextFactory the LdapContextFactory instance used to acquire connections to the LDAP directory during</a> |
| <span class="sourceLineNo">259</span><a id="line.259"> * authentication attempts and authorization queries</a> |
| <span class="sourceLineNo">260</span><a id="line.260"> */</a> |
| <span class="sourceLineNo">261</span><a id="line.261"> @SuppressWarnings({"UnusedDeclaration"})</a> |
| <span class="sourceLineNo">262</span><a id="line.262"> public void setContextFactory(LdapContextFactory contextFactory) {</a> |
| <span class="sourceLineNo">263</span><a id="line.263"> this.contextFactory = contextFactory;</a> |
| <span class="sourceLineNo">264</span><a id="line.264"> }</a> |
| <span class="sourceLineNo">265</span><a id="line.265"></a> |
| <span class="sourceLineNo">266</span><a id="line.266"> /**</a> |
| <span class="sourceLineNo">267</span><a id="line.267"> * Returns the LdapContextFactory instance used to acquire connections to the LDAP directory during authentication</a> |
| <span class="sourceLineNo">268</span><a id="line.268"> * attempts and authorization queries. Unless specified otherwise, the default is a {@link JndiLdapContextFactory}</a> |
| <span class="sourceLineNo">269</span><a id="line.269"> * instance.</a> |
| <span class="sourceLineNo">270</span><a id="line.270"> *</a> |
| <span class="sourceLineNo">271</span><a id="line.271"> * @return the LdapContextFactory instance used to acquire connections to the LDAP directory during</a> |
| <span class="sourceLineNo">272</span><a id="line.272"> * authentication attempts and authorization queries</a> |
| <span class="sourceLineNo">273</span><a id="line.273"> */</a> |
| <span class="sourceLineNo">274</span><a id="line.274"> public LdapContextFactory getContextFactory() {</a> |
| <span class="sourceLineNo">275</span><a id="line.275"> return this.contextFactory;</a> |
| <span class="sourceLineNo">276</span><a id="line.276"> }</a> |
| <span class="sourceLineNo">277</span><a id="line.277"></a> |
| <span class="sourceLineNo">278</span><a id="line.278"> /*--------------------------------------------</a> |
| <span class="sourceLineNo">279</span><a id="line.279"> | M E T H O D S |</a> |
| <span class="sourceLineNo">280</span><a id="line.280"> ============================================*/</a> |
| <span class="sourceLineNo">281</span><a id="line.281"></a> |
| <span class="sourceLineNo">282</span><a id="line.282"> /**</a> |
| <span class="sourceLineNo">283</span><a id="line.283"> * Delegates to {@link #queryForAuthenticationInfo(org.apache.shiro.authc.AuthenticationToken, LdapContextFactory)},</a> |
| <span class="sourceLineNo">284</span><a id="line.284"> * wrapping any {@link NamingException}s in a Shiro {@link AuthenticationException} to satisfy the parent method</a> |
| <span class="sourceLineNo">285</span><a id="line.285"> * signature.</a> |
| <span class="sourceLineNo">286</span><a id="line.286"> *</a> |
| <span class="sourceLineNo">287</span><a id="line.287"> * @param token the authentication token containing the user's principal and credentials.</a> |
| <span class="sourceLineNo">288</span><a id="line.288"> * @return the {@link AuthenticationInfo} acquired after a successful authentication attempt</a> |
| <span class="sourceLineNo">289</span><a id="line.289"> * @throws AuthenticationException if the authentication attempt fails or if a</a> |
| <span class="sourceLineNo">290</span><a id="line.290"> * {@link NamingException} occurs.</a> |
| <span class="sourceLineNo">291</span><a id="line.291"> */</a> |
| <span class="sourceLineNo">292</span><a id="line.292"> protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {</a> |
| <span class="sourceLineNo">293</span><a id="line.293"> AuthenticationInfo info;</a> |
| <span class="sourceLineNo">294</span><a id="line.294"> try {</a> |
| <span class="sourceLineNo">295</span><a id="line.295"> info = queryForAuthenticationInfo(token, getContextFactory());</a> |
| <span class="sourceLineNo">296</span><a id="line.296"> } catch (AuthenticationNotSupportedException e) {</a> |
| <span class="sourceLineNo">297</span><a id="line.297"> String msg = "Unsupported configured authentication mechanism";</a> |
| <span class="sourceLineNo">298</span><a id="line.298"> throw new UnsupportedAuthenticationMechanismException(msg, e);</a> |
| <span class="sourceLineNo">299</span><a id="line.299"> } catch (javax.naming.AuthenticationException e) {</a> |
| <span class="sourceLineNo">300</span><a id="line.300"> throw new AuthenticationException("LDAP authentication failed.", e);</a> |
| <span class="sourceLineNo">301</span><a id="line.301"> } catch (NamingException e) {</a> |
| <span class="sourceLineNo">302</span><a id="line.302"> String msg = "LDAP naming error while attempting to authenticate user.";</a> |
| <span class="sourceLineNo">303</span><a id="line.303"> throw new AuthenticationException(msg, e);</a> |
| <span class="sourceLineNo">304</span><a id="line.304"> }</a> |
| <span class="sourceLineNo">305</span><a id="line.305"></a> |
| <span class="sourceLineNo">306</span><a id="line.306"> return info;</a> |
| <span class="sourceLineNo">307</span><a id="line.307"> }</a> |
| <span class="sourceLineNo">308</span><a id="line.308"></a> |
| <span class="sourceLineNo">309</span><a id="line.309"></a> |
| <span class="sourceLineNo">310</span><a id="line.310"> protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {</a> |
| <span class="sourceLineNo">311</span><a id="line.311"> AuthorizationInfo info;</a> |
| <span class="sourceLineNo">312</span><a id="line.312"> try {</a> |
| <span class="sourceLineNo">313</span><a id="line.313"> info = queryForAuthorizationInfo(principals, getContextFactory());</a> |
| <span class="sourceLineNo">314</span><a id="line.314"> } catch (NamingException e) {</a> |
| <span class="sourceLineNo">315</span><a id="line.315"> String msg = "LDAP naming error while attempting to retrieve authorization for user [" + principals + "].";</a> |
| <span class="sourceLineNo">316</span><a id="line.316"> throw new AuthorizationException(msg, e);</a> |
| <span class="sourceLineNo">317</span><a id="line.317"> }</a> |
| <span class="sourceLineNo">318</span><a id="line.318"></a> |
| <span class="sourceLineNo">319</span><a id="line.319"> return info;</a> |
| <span class="sourceLineNo">320</span><a id="line.320"> }</a> |
| <span class="sourceLineNo">321</span><a id="line.321"></a> |
| <span class="sourceLineNo">322</span><a id="line.322"> /**</a> |
| <span class="sourceLineNo">323</span><a id="line.323"> * Returns the principal to use when creating the LDAP connection for an authentication attempt.</a> |
| <span class="sourceLineNo">324</span><a id="line.324"> * <p/></a> |
| <span class="sourceLineNo">325</span><a id="line.325"> * This implementation uses a heuristic: it checks to see if the specified token's</a> |
| <span class="sourceLineNo">326</span><a id="line.326"> * {@link AuthenticationToken#getPrincipal() principal} is a {@code String}, and if so,</a> |
| <span class="sourceLineNo">327</span><a id="line.327"> * {@link #getUserDn(String) converts it} from what is</a> |
| <span class="sourceLineNo">328</span><a id="line.328"> * assumed to be a raw uid or username {@code String} into a User DN {@code String}. Almost all LDAP directories</a> |
| <span class="sourceLineNo">329</span><a id="line.329"> * expect the authentication connection to present a User DN and not an unqualified username or uid.</a> |
| <span class="sourceLineNo">330</span><a id="line.330"> * <p/></a> |
| <span class="sourceLineNo">331</span><a id="line.331"> * If the token's {@code principal} is not a String, it is assumed to already be in the format supported by the</a> |
| <span class="sourceLineNo">332</span><a id="line.332"> * underlying {@link LdapContextFactory} implementation and the raw principal is returned directly.</a> |
| <span class="sourceLineNo">333</span><a id="line.333"> *</a> |
| <span class="sourceLineNo">334</span><a id="line.334"> * @param token the {@link AuthenticationToken} submitted during the authentication process</a> |
| <span class="sourceLineNo">335</span><a id="line.335"> * @return the User DN or raw principal to use to acquire the LdapContext.</a> |
| <span class="sourceLineNo">336</span><a id="line.336"> * @see LdapContextFactory#getLdapContext(Object, Object)</a> |
| <span class="sourceLineNo">337</span><a id="line.337"> */</a> |
| <span class="sourceLineNo">338</span><a id="line.338"> protected Object getLdapPrincipal(AuthenticationToken token) {</a> |
| <span class="sourceLineNo">339</span><a id="line.339"> Object principal = token.getPrincipal();</a> |
| <span class="sourceLineNo">340</span><a id="line.340"> if (principal instanceof String) {</a> |
| <span class="sourceLineNo">341</span><a id="line.341"> String sPrincipal = (String) principal;</a> |
| <span class="sourceLineNo">342</span><a id="line.342"> return getUserDn(sPrincipal);</a> |
| <span class="sourceLineNo">343</span><a id="line.343"> }</a> |
| <span class="sourceLineNo">344</span><a id="line.344"> return principal;</a> |
| <span class="sourceLineNo">345</span><a id="line.345"> }</a> |
| <span class="sourceLineNo">346</span><a id="line.346"></a> |
| <span class="sourceLineNo">347</span><a id="line.347"> /**</a> |
| <span class="sourceLineNo">348</span><a id="line.348"> * This implementation opens an LDAP connection using the token's</a> |
| <span class="sourceLineNo">349</span><a id="line.349"> * {@link #getLdapPrincipal(org.apache.shiro.authc.AuthenticationToken) discovered principal} and provided</a> |
| <span class="sourceLineNo">350</span><a id="line.350"> * {@link AuthenticationToken#getCredentials() credentials}. If the connection opens successfully, the</a> |
| <span class="sourceLineNo">351</span><a id="line.351"> * authentication attempt is immediately considered successful and a new</a> |
| <span class="sourceLineNo">352</span><a id="line.352"> * {@link AuthenticationInfo} instance is</a> |
| <span class="sourceLineNo">353</span><a id="line.353"> * {@link #createAuthenticationInfo(org.apache.shiro.authc.AuthenticationToken, Object, Object, javax.naming.ldap.LdapContext) created}</a> |
| <span class="sourceLineNo">354</span><a id="line.354"> * and returned. If the connection cannot be opened, either because LDAP authentication failed or some other</a> |
| <span class="sourceLineNo">355</span><a id="line.355"> * JNDI problem, an {@link NamingException} will be thrown.</a> |
| <span class="sourceLineNo">356</span><a id="line.356"> *</a> |
| <span class="sourceLineNo">357</span><a id="line.357"> * @param token the submitted authentication token that triggered the authentication attempt.</a> |
| <span class="sourceLineNo">358</span><a id="line.358"> * @param ldapContextFactory factory used to retrieve LDAP connections.</a> |
| <span class="sourceLineNo">359</span><a id="line.359"> * @return an {@link AuthenticationInfo} instance representing the authenticated user's information.</a> |
| <span class="sourceLineNo">360</span><a id="line.360"> * @throws NamingException if any LDAP errors occur.</a> |
| <span class="sourceLineNo">361</span><a id="line.361"> */</a> |
| <span class="sourceLineNo">362</span><a id="line.362"> protected AuthenticationInfo queryForAuthenticationInfo(AuthenticationToken token,</a> |
| <span class="sourceLineNo">363</span><a id="line.363"> LdapContextFactory ldapContextFactory)</a> |
| <span class="sourceLineNo">364</span><a id="line.364"> throws NamingException {</a> |
| <span class="sourceLineNo">365</span><a id="line.365"></a> |
| <span class="sourceLineNo">366</span><a id="line.366"> Object principal = token.getPrincipal();</a> |
| <span class="sourceLineNo">367</span><a id="line.367"> Object credentials = token.getCredentials();</a> |
| <span class="sourceLineNo">368</span><a id="line.368"></a> |
| <span class="sourceLineNo">369</span><a id="line.369"> log.debug("Authenticating user '{}' through LDAP", principal);</a> |
| <span class="sourceLineNo">370</span><a id="line.370"></a> |
| <span class="sourceLineNo">371</span><a id="line.371"> principal = getLdapPrincipal(token);</a> |
| <span class="sourceLineNo">372</span><a id="line.372"></a> |
| <span class="sourceLineNo">373</span><a id="line.373"> LdapContext ctx = null;</a> |
| <span class="sourceLineNo">374</span><a id="line.374"> try {</a> |
| <span class="sourceLineNo">375</span><a id="line.375"> ctx = ldapContextFactory.getLdapContext(principal, credentials);</a> |
| <span class="sourceLineNo">376</span><a id="line.376"> //context was opened successfully, which means their credentials were valid. Return the AuthenticationInfo:</a> |
| <span class="sourceLineNo">377</span><a id="line.377"> return createAuthenticationInfo(token, principal, credentials, ctx);</a> |
| <span class="sourceLineNo">378</span><a id="line.378"> } finally {</a> |
| <span class="sourceLineNo">379</span><a id="line.379"> LdapUtils.closeContext(ctx);</a> |
| <span class="sourceLineNo">380</span><a id="line.380"> }</a> |
| <span class="sourceLineNo">381</span><a id="line.381"> }</a> |
| <span class="sourceLineNo">382</span><a id="line.382"></a> |
| <span class="sourceLineNo">383</span><a id="line.383"> /**</a> |
| <span class="sourceLineNo">384</span><a id="line.384"> * Returns the {@link AuthenticationInfo} resulting from a Subject's successful LDAP authentication attempt.</a> |
| <span class="sourceLineNo">385</span><a id="line.385"> * <p/></a> |
| <span class="sourceLineNo">386</span><a id="line.386"> * This implementation ignores the {@code ldapPrincipal}, {@code ldapCredentials}, and the opened</a> |
| <span class="sourceLineNo">387</span><a id="line.387"> * {@code ldapContext} arguments and merely returns an {@code AuthenticationInfo} instance mirroring the</a> |
| <span class="sourceLineNo">388</span><a id="line.388"> * submitted token's principal and credentials. This is acceptable because this method is only ever invoked after</a> |
| <span class="sourceLineNo">389</span><a id="line.389"> * a successful authentication attempt, which means the provided principal and credentials were correct, and can</a> |
| <span class="sourceLineNo">390</span><a id="line.390"> * be used directly to populate the (now verified) {@code AuthenticationInfo}.</a> |
| <span class="sourceLineNo">391</span><a id="line.391"> * <p/></a> |
| <span class="sourceLineNo">392</span><a id="line.392"> * Subclasses however are free to override this method for more advanced construction logic.</a> |
| <span class="sourceLineNo">393</span><a id="line.393"> *</a> |
| <span class="sourceLineNo">394</span><a id="line.394"> * @param token the submitted {@code AuthenticationToken} that resulted in a successful authentication</a> |
| <span class="sourceLineNo">395</span><a id="line.395"> * @param ldapPrincipal the LDAP principal used when creating the LDAP connection. Unlike the token's</a> |
| <span class="sourceLineNo">396</span><a id="line.396"> * {@link AuthenticationToken#getPrincipal() principal}, this value is usually a constructed</a> |
| <span class="sourceLineNo">397</span><a id="line.397"> * User DN and not a simple username or uid. The exact value is depending on the</a> |
| <span class="sourceLineNo">398</span><a id="line.398"> * configured</a> |
| <span class="sourceLineNo">399</span><a id="line.399"> * <a href="http://download-llnw.oracle.com/javase/tutorial/jndi/ldap/auth_mechs.html"></a> |
| <span class="sourceLineNo">400</span><a id="line.400"> * LDAP authentication mechanism</a> in use.</a> |
| <span class="sourceLineNo">401</span><a id="line.401"> * @param ldapCredentials the LDAP credentials used when creating the LDAP connection.</a> |
| <span class="sourceLineNo">402</span><a id="line.402"> * @param ldapContext the LdapContext created that resulted in a successful authentication. It can be used</a> |
| <span class="sourceLineNo">403</span><a id="line.403"> * further by subclasses for more complex operations. It does not need to be closed -</a> |
| <span class="sourceLineNo">404</span><a id="line.404"> * it will be closed automatically after this method returns.</a> |
| <span class="sourceLineNo">405</span><a id="line.405"> * @return the {@link AuthenticationInfo} resulting from a Subject's successful LDAP authentication attempt.</a> |
| <span class="sourceLineNo">406</span><a id="line.406"> * @throws NamingException if there was any problem using the {@code LdapContext}</a> |
| <span class="sourceLineNo">407</span><a id="line.407"> */</a> |
| <span class="sourceLineNo">408</span><a id="line.408"> @SuppressWarnings({"UnusedDeclaration"})</a> |
| <span class="sourceLineNo">409</span><a id="line.409"> protected AuthenticationInfo createAuthenticationInfo(AuthenticationToken token, Object ldapPrincipal,</a> |
| <span class="sourceLineNo">410</span><a id="line.410"> Object ldapCredentials, LdapContext ldapContext)</a> |
| <span class="sourceLineNo">411</span><a id="line.411"> throws NamingException {</a> |
| <span class="sourceLineNo">412</span><a id="line.412"> return new SimpleAuthenticationInfo(token.getPrincipal(), token.getCredentials(), getName());</a> |
| <span class="sourceLineNo">413</span><a id="line.413"> }</a> |
| <span class="sourceLineNo">414</span><a id="line.414"></a> |
| <span class="sourceLineNo">415</span><a id="line.415"></a> |
| <span class="sourceLineNo">416</span><a id="line.416"> /**</a> |
| <span class="sourceLineNo">417</span><a id="line.417"> * Method that should be implemented by subclasses to build an</a> |
| <span class="sourceLineNo">418</span><a id="line.418"> * {@link AuthorizationInfo} object by querying the LDAP context for the</a> |
| <span class="sourceLineNo">419</span><a id="line.419"> * specified principal.</p></a> |
| <span class="sourceLineNo">420</span><a id="line.420"> *</a> |
| <span class="sourceLineNo">421</span><a id="line.421"> * @param principals the principals of the Subject whose AuthenticationInfo should be queried from the LDAP server.</a> |
| <span class="sourceLineNo">422</span><a id="line.422"> * @param ldapContextFactory factory used to retrieve LDAP connections.</a> |
| <span class="sourceLineNo">423</span><a id="line.423"> * @return an {@link AuthorizationInfo} instance containing information retrieved from the LDAP server.</a> |
| <span class="sourceLineNo">424</span><a id="line.424"> * @throws NamingException if any LDAP errors occur during the search.</a> |
| <span class="sourceLineNo">425</span><a id="line.425"> */</a> |
| <span class="sourceLineNo">426</span><a id="line.426"> protected AuthorizationInfo queryForAuthorizationInfo(PrincipalCollection principals,</a> |
| <span class="sourceLineNo">427</span><a id="line.427"> LdapContextFactory ldapContextFactory) throws NamingException {</a> |
| <span class="sourceLineNo">428</span><a id="line.428"> return null;</a> |
| <span class="sourceLineNo">429</span><a id="line.429"> }</a> |
| <span class="sourceLineNo">430</span><a id="line.430">}</a> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |
