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| <pre><span class="source-line-no">001</span><span id="line-1">/*</span> |
| <span class="source-line-no">002</span><span id="line-2"> * Licensed to the Apache Software Foundation (ASF) under one</span> |
| <span class="source-line-no">003</span><span id="line-3"> * or more contributor license agreements. See the NOTICE file</span> |
| <span class="source-line-no">004</span><span id="line-4"> * distributed with this work for additional information</span> |
| <span class="source-line-no">005</span><span id="line-5"> * regarding copyright ownership. The ASF licenses this file</span> |
| <span class="source-line-no">006</span><span id="line-6"> * to you under the Apache License, Version 2.0 (the</span> |
| <span class="source-line-no">007</span><span id="line-7"> * "License"); you may not use this file except in compliance</span> |
| <span class="source-line-no">008</span><span id="line-8"> * with the License. You may obtain a copy of the License at</span> |
| <span class="source-line-no">009</span><span id="line-9"> *</span> |
| <span class="source-line-no">010</span><span id="line-10"> * http://www.apache.org/licenses/LICENSE-2.0</span> |
| <span class="source-line-no">011</span><span id="line-11"> *</span> |
| <span class="source-line-no">012</span><span id="line-12"> * Unless required by applicable law or agreed to in writing, software</span> |
| <span class="source-line-no">013</span><span id="line-13"> * distributed under the License is distributed on an "AS IS" BASIS,</span> |
| <span class="source-line-no">014</span><span id="line-14"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span> |
| <span class="source-line-no">015</span><span id="line-15"> * See the License for the specific language governing permissions and</span> |
| <span class="source-line-no">016</span><span id="line-16"> * limitations under the License.</span> |
| <span class="source-line-no">017</span><span id="line-17"> */</span> |
| <span class="source-line-no">018</span><span id="line-18">package org.apache.hadoop.hbase.zookeeper;</span> |
| <span class="source-line-no">019</span><span id="line-19"></span> |
| <span class="source-line-no">020</span><span id="line-20">import java.io.IOException;</span> |
| <span class="source-line-no">021</span><span id="line-21">import java.util.HashMap;</span> |
| <span class="source-line-no">022</span><span id="line-22">import java.util.Map;</span> |
| <span class="source-line-no">023</span><span id="line-23">import javax.security.auth.login.AppConfigurationEntry;</span> |
| <span class="source-line-no">024</span><span id="line-24">import org.apache.hadoop.conf.Configuration;</span> |
| <span class="source-line-no">025</span><span id="line-25">import org.apache.hadoop.hbase.HConstants;</span> |
| <span class="source-line-no">026</span><span id="line-26">import org.apache.hadoop.security.SecurityUtil;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.security.authentication.util.KerberosUtil;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.zookeeper.client.ZooKeeperSaslClient;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.zookeeper.server.ZooKeeperSaslServer;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.slf4j.Logger;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">033</span><span id="line-33"></span> |
| <span class="source-line-no">034</span><span id="line-34">/**</span> |
| <span class="source-line-no">035</span><span id="line-35"> * Provides ZooKeeper authentication services for both client and server processes.</span> |
| <span class="source-line-no">036</span><span id="line-36"> */</span> |
| <span class="source-line-no">037</span><span id="line-37">@InterfaceAudience.Private</span> |
| <span class="source-line-no">038</span><span id="line-38">public final class ZKAuthentication {</span> |
| <span class="source-line-no">039</span><span id="line-39"> private static final Logger LOG = LoggerFactory.getLogger(ZKAuthentication.class);</span> |
| <span class="source-line-no">040</span><span id="line-40"></span> |
| <span class="source-line-no">041</span><span id="line-41"> private ZKAuthentication() {</span> |
| <span class="source-line-no">042</span><span id="line-42"> }</span> |
| <span class="source-line-no">043</span><span id="line-43"></span> |
| <span class="source-line-no">044</span><span id="line-44"> /**</span> |
| <span class="source-line-no">045</span><span id="line-45"> * Log in the current zookeeper server process using the given configuration keys for the</span> |
| <span class="source-line-no">046</span><span id="line-46"> * credential file and login principal.</span> |
| <span class="source-line-no">047</span><span id="line-47"> * <p></span> |
| <span class="source-line-no">048</span><span id="line-48"> * <strong>This is only applicable when running on secure hbase</strong> On regular HBase (without</span> |
| <span class="source-line-no">049</span><span id="line-49"> * security features), this will safely be ignored.</span> |
| <span class="source-line-no">050</span><span id="line-50"> * </p></span> |
| <span class="source-line-no">051</span><span id="line-51"> * @param conf The configuration data to use</span> |
| <span class="source-line-no">052</span><span id="line-52"> * @param keytabFileKey Property key used to configure the path to the credential file</span> |
| <span class="source-line-no">053</span><span id="line-53"> * @param userNameKey Property key used to configure the login principal</span> |
| <span class="source-line-no">054</span><span id="line-54"> * @param hostname Current hostname to use in any credentials</span> |
| <span class="source-line-no">055</span><span id="line-55"> * @throws IOException underlying exception from SecurityUtil.login() call</span> |
| <span class="source-line-no">056</span><span id="line-56"> */</span> |
| <span class="source-line-no">057</span><span id="line-57"> public static void loginServer(Configuration conf, String keytabFileKey, String userNameKey,</span> |
| <span class="source-line-no">058</span><span id="line-58"> String hostname) throws IOException {</span> |
| <span class="source-line-no">059</span><span id="line-59"> login(conf, keytabFileKey, userNameKey, hostname, ZooKeeperSaslServer.LOGIN_CONTEXT_NAME_KEY,</span> |
| <span class="source-line-no">060</span><span id="line-60"> JaasConfiguration.SERVER_KEYTAB_KERBEROS_CONFIG_NAME);</span> |
| <span class="source-line-no">061</span><span id="line-61"> }</span> |
| <span class="source-line-no">062</span><span id="line-62"></span> |
| <span class="source-line-no">063</span><span id="line-63"> /**</span> |
| <span class="source-line-no">064</span><span id="line-64"> * Log in the current zookeeper client using the given configuration keys for the credential file</span> |
| <span class="source-line-no">065</span><span id="line-65"> * and login principal.</span> |
| <span class="source-line-no">066</span><span id="line-66"> * <p></span> |
| <span class="source-line-no">067</span><span id="line-67"> * <strong>This is only applicable when running on secure hbase</strong> On regular HBase (without</span> |
| <span class="source-line-no">068</span><span id="line-68"> * security features), this will safely be ignored.</span> |
| <span class="source-line-no">069</span><span id="line-69"> * </p></span> |
| <span class="source-line-no">070</span><span id="line-70"> * @param conf The configuration data to use</span> |
| <span class="source-line-no">071</span><span id="line-71"> * @param keytabFileKey Property key used to configure the path to the credential file</span> |
| <span class="source-line-no">072</span><span id="line-72"> * @param userNameKey Property key used to configure the login principal</span> |
| <span class="source-line-no">073</span><span id="line-73"> * @param hostname Current hostname to use in any credentials</span> |
| <span class="source-line-no">074</span><span id="line-74"> * @throws IOException underlying exception from SecurityUtil.login() call</span> |
| <span class="source-line-no">075</span><span id="line-75"> */</span> |
| <span class="source-line-no">076</span><span id="line-76"> public static void loginClient(Configuration conf, String keytabFileKey, String userNameKey,</span> |
| <span class="source-line-no">077</span><span id="line-77"> String hostname) throws IOException {</span> |
| <span class="source-line-no">078</span><span id="line-78"> login(conf, keytabFileKey, userNameKey, hostname, ZooKeeperSaslClient.LOGIN_CONTEXT_NAME_KEY,</span> |
| <span class="source-line-no">079</span><span id="line-79"> JaasConfiguration.CLIENT_KEYTAB_KERBEROS_CONFIG_NAME);</span> |
| <span class="source-line-no">080</span><span id="line-80"> }</span> |
| <span class="source-line-no">081</span><span id="line-81"></span> |
| <span class="source-line-no">082</span><span id="line-82"> /**</span> |
| <span class="source-line-no">083</span><span id="line-83"> * Log in the current process using the given configuration keys for the credential file and login</span> |
| <span class="source-line-no">084</span><span id="line-84"> * principal.</span> |
| <span class="source-line-no">085</span><span id="line-85"> * <p></span> |
| <span class="source-line-no">086</span><span id="line-86"> * <strong>This is only applicable when running on secure hbase</strong> On regular HBase (without</span> |
| <span class="source-line-no">087</span><span id="line-87"> * security features), this will safely be ignored.</span> |
| <span class="source-line-no">088</span><span id="line-88"> * </p></span> |
| <span class="source-line-no">089</span><span id="line-89"> * @param conf The configuration data to use</span> |
| <span class="source-line-no">090</span><span id="line-90"> * @param keytabFileKey Property key used to configure the path to the credential file</span> |
| <span class="source-line-no">091</span><span id="line-91"> * @param userNameKey Property key used to configure the login principal</span> |
| <span class="source-line-no">092</span><span id="line-92"> * @param hostname Current hostname to use in any credentials</span> |
| <span class="source-line-no">093</span><span id="line-93"> * @param loginContextProperty property name to expose the entry name</span> |
| <span class="source-line-no">094</span><span id="line-94"> * @param loginContextName jaas entry name</span> |
| <span class="source-line-no">095</span><span id="line-95"> * @throws IOException underlying exception from SecurityUtil.login() call</span> |
| <span class="source-line-no">096</span><span id="line-96"> */</span> |
| <span class="source-line-no">097</span><span id="line-97"> private static void login(Configuration conf, String keytabFileKey, String userNameKey,</span> |
| <span class="source-line-no">098</span><span id="line-98"> String hostname, String loginContextProperty, String loginContextName) throws IOException {</span> |
| <span class="source-line-no">099</span><span id="line-99"> if (!isSecureZooKeeper(conf)) {</span> |
| <span class="source-line-no">100</span><span id="line-100"> return;</span> |
| <span class="source-line-no">101</span><span id="line-101"> }</span> |
| <span class="source-line-no">102</span><span id="line-102"></span> |
| <span class="source-line-no">103</span><span id="line-103"> // User has specified a jaas.conf, keep this one as the good one.</span> |
| <span class="source-line-no">104</span><span id="line-104"> // HBASE_OPTS="-Djava.security.auth.login.config=jaas.conf"</span> |
| <span class="source-line-no">105</span><span id="line-105"> if (System.getProperty("java.security.auth.login.config") != null) {</span> |
| <span class="source-line-no">106</span><span id="line-106"> return;</span> |
| <span class="source-line-no">107</span><span id="line-107"> }</span> |
| <span class="source-line-no">108</span><span id="line-108"></span> |
| <span class="source-line-no">109</span><span id="line-109"> // No keytab specified, no auth</span> |
| <span class="source-line-no">110</span><span id="line-110"> String keytabFilename = conf.get(keytabFileKey);</span> |
| <span class="source-line-no">111</span><span id="line-111"> if (keytabFilename == null) {</span> |
| <span class="source-line-no">112</span><span id="line-112"> LOG.warn("no keytab specified for: {}", keytabFileKey);</span> |
| <span class="source-line-no">113</span><span id="line-113"> return;</span> |
| <span class="source-line-no">114</span><span id="line-114"> }</span> |
| <span class="source-line-no">115</span><span id="line-115"></span> |
| <span class="source-line-no">116</span><span id="line-116"> String principalConfig = conf.get(userNameKey, System.getProperty("user.name"));</span> |
| <span class="source-line-no">117</span><span id="line-117"> String principalName = SecurityUtil.getServerPrincipal(principalConfig, hostname);</span> |
| <span class="source-line-no">118</span><span id="line-118"></span> |
| <span class="source-line-no">119</span><span id="line-119"> // Initialize the "jaas.conf" for keyTab/principal,</span> |
| <span class="source-line-no">120</span><span id="line-120"> // If keyTab is not specified use the Ticket Cache.</span> |
| <span class="source-line-no">121</span><span id="line-121"> // and set the zookeeper login context name.</span> |
| <span class="source-line-no">122</span><span id="line-122"> JaasConfiguration jaasConf =</span> |
| <span class="source-line-no">123</span><span id="line-123"> new JaasConfiguration(loginContextName, principalName, keytabFilename);</span> |
| <span class="source-line-no">124</span><span id="line-124"> javax.security.auth.login.Configuration.setConfiguration(jaasConf);</span> |
| <span class="source-line-no">125</span><span id="line-125"> System.setProperty(loginContextProperty, loginContextName);</span> |
| <span class="source-line-no">126</span><span id="line-126"> }</span> |
| <span class="source-line-no">127</span><span id="line-127"></span> |
| <span class="source-line-no">128</span><span id="line-128"> /**</span> |
| <span class="source-line-no">129</span><span id="line-129"> * Returns {@code true} when secure authentication is enabled (whether</span> |
| <span class="source-line-no">130</span><span id="line-130"> * {@code hbase.security.authentication} is set to "{@code kerberos}").</span> |
| <span class="source-line-no">131</span><span id="line-131"> */</span> |
| <span class="source-line-no">132</span><span id="line-132"> public static boolean isSecureZooKeeper(Configuration conf) {</span> |
| <span class="source-line-no">133</span><span id="line-133"> // Detection for embedded HBase client with jaas configuration</span> |
| <span class="source-line-no">134</span><span id="line-134"> // defined for third party programs.</span> |
| <span class="source-line-no">135</span><span id="line-135"> try {</span> |
| <span class="source-line-no">136</span><span id="line-136"> javax.security.auth.login.Configuration testConfig =</span> |
| <span class="source-line-no">137</span><span id="line-137"> javax.security.auth.login.Configuration.getConfiguration();</span> |
| <span class="source-line-no">138</span><span id="line-138"> if (</span> |
| <span class="source-line-no">139</span><span id="line-139"> testConfig.getAppConfigurationEntry("Client") == null</span> |
| <span class="source-line-no">140</span><span id="line-140"> && testConfig</span> |
| <span class="source-line-no">141</span><span id="line-141"> .getAppConfigurationEntry(JaasConfiguration.CLIENT_KEYTAB_KERBEROS_CONFIG_NAME) == null</span> |
| <span class="source-line-no">142</span><span id="line-142"> && testConfig</span> |
| <span class="source-line-no">143</span><span id="line-143"> .getAppConfigurationEntry(JaasConfiguration.SERVER_KEYTAB_KERBEROS_CONFIG_NAME) == null</span> |
| <span class="source-line-no">144</span><span id="line-144"> && conf.get(HConstants.ZK_CLIENT_KERBEROS_PRINCIPAL) == null</span> |
| <span class="source-line-no">145</span><span id="line-145"> && conf.get(HConstants.ZK_SERVER_KERBEROS_PRINCIPAL) == null</span> |
| <span class="source-line-no">146</span><span id="line-146"> ) {</span> |
| <span class="source-line-no">147</span><span id="line-147"></span> |
| <span class="source-line-no">148</span><span id="line-148"> return false;</span> |
| <span class="source-line-no">149</span><span id="line-149"> }</span> |
| <span class="source-line-no">150</span><span id="line-150"> } catch (Exception e) {</span> |
| <span class="source-line-no">151</span><span id="line-151"> // No Jaas configuration defined.</span> |
| <span class="source-line-no">152</span><span id="line-152"> return false;</span> |
| <span class="source-line-no">153</span><span id="line-153"> }</span> |
| <span class="source-line-no">154</span><span id="line-154"></span> |
| <span class="source-line-no">155</span><span id="line-155"> // Master & RSs uses hbase.zookeeper.client.*</span> |
| <span class="source-line-no">156</span><span id="line-156"> return "kerberos".equalsIgnoreCase(conf.get("hbase.security.authentication"));</span> |
| <span class="source-line-no">157</span><span id="line-157"> }</span> |
| <span class="source-line-no">158</span><span id="line-158"></span> |
| <span class="source-line-no">159</span><span id="line-159"> /**</span> |
| <span class="source-line-no">160</span><span id="line-160"> * A JAAS configuration that defines the login modules that we want to use for ZooKeeper login.</span> |
| <span class="source-line-no">161</span><span id="line-161"> */</span> |
| <span class="source-line-no">162</span><span id="line-162"> private static class JaasConfiguration extends javax.security.auth.login.Configuration {</span> |
| <span class="source-line-no">163</span><span id="line-163"> private static final Logger LOG = LoggerFactory.getLogger(JaasConfiguration.class);</span> |
| <span class="source-line-no">164</span><span id="line-164"></span> |
| <span class="source-line-no">165</span><span id="line-165"> public static final String SERVER_KEYTAB_KERBEROS_CONFIG_NAME =</span> |
| <span class="source-line-no">166</span><span id="line-166"> "zookeeper-server-keytab-kerberos";</span> |
| <span class="source-line-no">167</span><span id="line-167"> public static final String CLIENT_KEYTAB_KERBEROS_CONFIG_NAME =</span> |
| <span class="source-line-no">168</span><span id="line-168"> "zookeeper-client-keytab-kerberos";</span> |
| <span class="source-line-no">169</span><span id="line-169"></span> |
| <span class="source-line-no">170</span><span id="line-170"> private static final Map<String, String> BASIC_JAAS_OPTIONS = new HashMap<>();</span> |
| <span class="source-line-no">171</span><span id="line-171"></span> |
| <span class="source-line-no">172</span><span id="line-172"> static {</span> |
| <span class="source-line-no">173</span><span id="line-173"> String jaasEnvVar = System.getenv("HBASE_JAAS_DEBUG");</span> |
| <span class="source-line-no">174</span><span id="line-174"> if ("true".equalsIgnoreCase(jaasEnvVar)) {</span> |
| <span class="source-line-no">175</span><span id="line-175"> BASIC_JAAS_OPTIONS.put("debug", "true");</span> |
| <span class="source-line-no">176</span><span id="line-176"> }</span> |
| <span class="source-line-no">177</span><span id="line-177"> }</span> |
| <span class="source-line-no">178</span><span id="line-178"></span> |
| <span class="source-line-no">179</span><span id="line-179"> private static final Map<String, String> KEYTAB_KERBEROS_OPTIONS = new HashMap<>();</span> |
| <span class="source-line-no">180</span><span id="line-180"></span> |
| <span class="source-line-no">181</span><span id="line-181"> static {</span> |
| <span class="source-line-no">182</span><span id="line-182"> KEYTAB_KERBEROS_OPTIONS.put("doNotPrompt", "true");</span> |
| <span class="source-line-no">183</span><span id="line-183"> KEYTAB_KERBEROS_OPTIONS.put("storeKey", "true");</span> |
| <span class="source-line-no">184</span><span id="line-184"> KEYTAB_KERBEROS_OPTIONS.put("refreshKrb5Config", "true");</span> |
| <span class="source-line-no">185</span><span id="line-185"> KEYTAB_KERBEROS_OPTIONS.putAll(BASIC_JAAS_OPTIONS);</span> |
| <span class="source-line-no">186</span><span id="line-186"> }</span> |
| <span class="source-line-no">187</span><span id="line-187"></span> |
| <span class="source-line-no">188</span><span id="line-188"> private static final AppConfigurationEntry KEYTAB_KERBEROS_LOGIN =</span> |
| <span class="source-line-no">189</span><span id="line-189"> new AppConfigurationEntry(KerberosUtil.getKrb5LoginModuleName(),</span> |
| <span class="source-line-no">190</span><span id="line-190"> AppConfigurationEntry.LoginModuleControlFlag.REQUIRED, KEYTAB_KERBEROS_OPTIONS);</span> |
| <span class="source-line-no">191</span><span id="line-191"></span> |
| <span class="source-line-no">192</span><span id="line-192"> private static final AppConfigurationEntry[] KEYTAB_KERBEROS_CONF =</span> |
| <span class="source-line-no">193</span><span id="line-193"> new AppConfigurationEntry[] { KEYTAB_KERBEROS_LOGIN };</span> |
| <span class="source-line-no">194</span><span id="line-194"></span> |
| <span class="source-line-no">195</span><span id="line-195"> private javax.security.auth.login.Configuration baseConfig;</span> |
| <span class="source-line-no">196</span><span id="line-196"> private final String loginContextName;</span> |
| <span class="source-line-no">197</span><span id="line-197"> private final boolean useTicketCache;</span> |
| <span class="source-line-no">198</span><span id="line-198"> private final String keytabFile;</span> |
| <span class="source-line-no">199</span><span id="line-199"> private final String principal;</span> |
| <span class="source-line-no">200</span><span id="line-200"></span> |
| <span class="source-line-no">201</span><span id="line-201"> public JaasConfiguration(String loginContextName, String principal, String keytabFile) {</span> |
| <span class="source-line-no">202</span><span id="line-202"> this(loginContextName, principal, keytabFile, keytabFile == null || keytabFile.length() == 0);</span> |
| <span class="source-line-no">203</span><span id="line-203"> }</span> |
| <span class="source-line-no">204</span><span id="line-204"></span> |
| <span class="source-line-no">205</span><span id="line-205"> private JaasConfiguration(String loginContextName, String principal, String keytabFile,</span> |
| <span class="source-line-no">206</span><span id="line-206"> boolean useTicketCache) {</span> |
| <span class="source-line-no">207</span><span id="line-207"> try {</span> |
| <span class="source-line-no">208</span><span id="line-208"> this.baseConfig = javax.security.auth.login.Configuration.getConfiguration();</span> |
| <span class="source-line-no">209</span><span id="line-209"> } catch (SecurityException e) {</span> |
| <span class="source-line-no">210</span><span id="line-210"> this.baseConfig = null;</span> |
| <span class="source-line-no">211</span><span id="line-211"> }</span> |
| <span class="source-line-no">212</span><span id="line-212"> this.loginContextName = loginContextName;</span> |
| <span class="source-line-no">213</span><span id="line-213"> this.useTicketCache = useTicketCache;</span> |
| <span class="source-line-no">214</span><span id="line-214"> this.keytabFile = keytabFile;</span> |
| <span class="source-line-no">215</span><span id="line-215"> this.principal = principal;</span> |
| <span class="source-line-no">216</span><span id="line-216"> LOG.info("JaasConfiguration loginContextName={} principal={} useTicketCache={} keytabFile={}",</span> |
| <span class="source-line-no">217</span><span id="line-217"> loginContextName, principal, useTicketCache, keytabFile);</span> |
| <span class="source-line-no">218</span><span id="line-218"> }</span> |
| <span class="source-line-no">219</span><span id="line-219"></span> |
| <span class="source-line-no">220</span><span id="line-220"> @Override</span> |
| <span class="source-line-no">221</span><span id="line-221"> public AppConfigurationEntry[] getAppConfigurationEntry(String appName) {</span> |
| <span class="source-line-no">222</span><span id="line-222"> if (loginContextName.equals(appName)) {</span> |
| <span class="source-line-no">223</span><span id="line-223"> if (!useTicketCache) {</span> |
| <span class="source-line-no">224</span><span id="line-224"> KEYTAB_KERBEROS_OPTIONS.put("keyTab", keytabFile);</span> |
| <span class="source-line-no">225</span><span id="line-225"> KEYTAB_KERBEROS_OPTIONS.put("useKeyTab", "true");</span> |
| <span class="source-line-no">226</span><span id="line-226"> }</span> |
| <span class="source-line-no">227</span><span id="line-227"> KEYTAB_KERBEROS_OPTIONS.put("principal", principal);</span> |
| <span class="source-line-no">228</span><span id="line-228"> KEYTAB_KERBEROS_OPTIONS.put("useTicketCache", useTicketCache ? "true" : "false");</span> |
| <span class="source-line-no">229</span><span id="line-229"> return KEYTAB_KERBEROS_CONF;</span> |
| <span class="source-line-no">230</span><span id="line-230"> }</span> |
| <span class="source-line-no">231</span><span id="line-231"></span> |
| <span class="source-line-no">232</span><span id="line-232"> if (baseConfig != null) {</span> |
| <span class="source-line-no">233</span><span id="line-233"> return baseConfig.getAppConfigurationEntry(appName);</span> |
| <span class="source-line-no">234</span><span id="line-234"> }</span> |
| <span class="source-line-no">235</span><span id="line-235"></span> |
| <span class="source-line-no">236</span><span id="line-236"> return (null);</span> |
| <span class="source-line-no">237</span><span id="line-237"> }</span> |
| <span class="source-line-no">238</span><span id="line-238"> }</span> |
| <span class="source-line-no">239</span><span id="line-239">}</span> |
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| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |