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| <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.authc.pam;</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.subject.PrincipalCollection;</a> |
| <span class="sourceLineNo">025</span><a id="line.25"></a> |
| <span class="sourceLineNo">026</span><a id="line.26">/**</a> |
| <span class="sourceLineNo">027</span><a id="line.27"> * <tt>AuthenticationStrategy</tt> implementation that requires <em>at least one</em> configured realm to</a> |
| <span class="sourceLineNo">028</span><a id="line.28"> * successfully process the submitted <tt>AuthenticationToken</tt> during the log-in attempt.</a> |
| <span class="sourceLineNo">029</span><a id="line.29"> * <p/></a> |
| <span class="sourceLineNo">030</span><a id="line.30"> * <p>This means any number of configured realms do not have to support the submitted log-in token, or they may</a> |
| <span class="sourceLineNo">031</span><a id="line.31"> * be unable to acquire <tt>AuthenticationInfo</tt> for the token, but as long as at least one can do both, this</a> |
| <span class="sourceLineNo">032</span><a id="line.32"> * Strategy implementation will allow the log-in process to be successful.</a> |
| <span class="sourceLineNo">033</span><a id="line.33"> * <p/></a> |
| <span class="sourceLineNo">034</span><a id="line.34"> * <p>Note that this implementation will aggregate the account data from <em>all</em> successfully consulted</a> |
| <span class="sourceLineNo">035</span><a id="line.35"> * realms during the authentication attempt. If you want only the account data from the first successfully</a> |
| <span class="sourceLineNo">036</span><a id="line.36"> * consulted realm and want to ignore all subsequent realms, use the</a> |
| <span class="sourceLineNo">037</span><a id="line.37"> * {@link FirstSuccessfulStrategy FirstSuccessfulAuthenticationStrategy} instead.</a> |
| <span class="sourceLineNo">038</span><a id="line.38"> *</a> |
| <span class="sourceLineNo">039</span><a id="line.39"> * @see FirstSuccessfulStrategy FirstSuccessfulAuthenticationStrategy</a> |
| <span class="sourceLineNo">040</span><a id="line.40"> * @since 0.2</a> |
| <span class="sourceLineNo">041</span><a id="line.41"> */</a> |
| <span class="sourceLineNo">042</span><a id="line.42">public class AtLeastOneSuccessfulStrategy extends AbstractAuthenticationStrategy {</a> |
| <span class="sourceLineNo">043</span><a id="line.43"></a> |
| <span class="sourceLineNo">044</span><a id="line.44"> private static boolean isEmpty(PrincipalCollection pc) {</a> |
| <span class="sourceLineNo">045</span><a id="line.45"> return pc == null || pc.isEmpty();</a> |
| <span class="sourceLineNo">046</span><a id="line.46"> }</a> |
| <span class="sourceLineNo">047</span><a id="line.47"></a> |
| <span class="sourceLineNo">048</span><a id="line.48"> /**</a> |
| <span class="sourceLineNo">049</span><a id="line.49"> * Ensures that the <code>aggregate</code> method argument is not <code>null</code> and</a> |
| <span class="sourceLineNo">050</span><a id="line.50"> * <code>aggregate.{@link org.apache.shiro.authc.AuthenticationInfo#getPrincipals() getPrincipals()}</code></a> |
| <span class="sourceLineNo">051</span><a id="line.51"> * is not <code>null</code>, and if either is <code>null</code>, throws an AuthenticationException to indicate</a> |
| <span class="sourceLineNo">052</span><a id="line.52"> * that none of the realms authenticated successfully.</a> |
| <span class="sourceLineNo">053</span><a id="line.53"> */</a> |
| <span class="sourceLineNo">054</span><a id="line.54"> public AuthenticationInfo afterAllAttempts(AuthenticationToken token, AuthenticationInfo aggregate) throws AuthenticationException {</a> |
| <span class="sourceLineNo">055</span><a id="line.55"> //we know if one or more were able to successfully authenticate if the aggregated account object does not</a> |
| <span class="sourceLineNo">056</span><a id="line.56"> //contain null or empty data:</a> |
| <span class="sourceLineNo">057</span><a id="line.57"> if (aggregate == null || isEmpty(aggregate.getPrincipals())) {</a> |
| <span class="sourceLineNo">058</span><a id="line.58"> throw new AuthenticationException("Authentication token of type [" + token.getClass() + "] " +</a> |
| <span class="sourceLineNo">059</span><a id="line.59"> "could not be authenticated by any configured realms. Please ensure that at least one realm can " +</a> |
| <span class="sourceLineNo">060</span><a id="line.60"> "authenticate these tokens.");</a> |
| <span class="sourceLineNo">061</span><a id="line.61"> }</a> |
| <span class="sourceLineNo">062</span><a id="line.62"></a> |
| <span class="sourceLineNo">063</span><a id="line.63"> return aggregate;</a> |
| <span class="sourceLineNo">064</span><a id="line.64"> }</a> |
| <span class="sourceLineNo">065</span><a id="line.65">}</a> |
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| </pre> |
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