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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.authz.aop;</a> |
| <span class="sourceLineNo">020</span><a id="line.20"></a> |
| <span class="sourceLineNo">021</span><a id="line.21">import org.apache.shiro.aop.AnnotationMethodInterceptor;</a> |
| <span class="sourceLineNo">022</span><a id="line.22">import org.apache.shiro.aop.AnnotationResolver;</a> |
| <span class="sourceLineNo">023</span><a id="line.23">import org.apache.shiro.aop.MethodInvocation;</a> |
| <span class="sourceLineNo">024</span><a id="line.24">import org.apache.shiro.authz.AuthorizationException;</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">/**</a> |
| <span class="sourceLineNo">028</span><a id="line.28"> * An <tt>AnnotationMethodInterceptor</tt> that asserts the calling code is authorized to execute the method</a> |
| <span class="sourceLineNo">029</span><a id="line.29"> * before allowing the invocation to continue by inspecting code annotations to perform an access control check.</a> |
| <span class="sourceLineNo">030</span><a id="line.30"> *</a> |
| <span class="sourceLineNo">031</span><a id="line.31"> * @since 0.1</a> |
| <span class="sourceLineNo">032</span><a id="line.32"> */</a> |
| <span class="sourceLineNo">033</span><a id="line.33">public abstract class AuthorizingAnnotationMethodInterceptor extends AnnotationMethodInterceptor</a> |
| <span class="sourceLineNo">034</span><a id="line.34">{</a> |
| <span class="sourceLineNo">035</span><a id="line.35"> </a> |
| <span class="sourceLineNo">036</span><a id="line.36"> /**</a> |
| <span class="sourceLineNo">037</span><a id="line.37"> * Constructor that ensures the internal <code>handler</code> is set which will be used to perform the</a> |
| <span class="sourceLineNo">038</span><a id="line.38"> * authorization assertion checks when a supported annotation is encountered.</a> |
| <span class="sourceLineNo">039</span><a id="line.39"> * @param handler the internal <code>handler</code> used to perform authorization assertion checks when a </a> |
| <span class="sourceLineNo">040</span><a id="line.40"> * supported annotation is encountered.</a> |
| <span class="sourceLineNo">041</span><a id="line.41"> */</a> |
| <span class="sourceLineNo">042</span><a id="line.42"> public AuthorizingAnnotationMethodInterceptor( AuthorizingAnnotationHandler handler ) {</a> |
| <span class="sourceLineNo">043</span><a id="line.43"> super(handler);</a> |
| <span class="sourceLineNo">044</span><a id="line.44"> }</a> |
| <span class="sourceLineNo">045</span><a id="line.45"></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"> * @param handler</a> |
| <span class="sourceLineNo">049</span><a id="line.49"> * @param resolver</a> |
| <span class="sourceLineNo">050</span><a id="line.50"> * @since 1.1</a> |
| <span class="sourceLineNo">051</span><a id="line.51"> */</a> |
| <span class="sourceLineNo">052</span><a id="line.52"> public AuthorizingAnnotationMethodInterceptor( AuthorizingAnnotationHandler handler,</a> |
| <span class="sourceLineNo">053</span><a id="line.53"> AnnotationResolver resolver) {</a> |
| <span class="sourceLineNo">054</span><a id="line.54"> super(handler, resolver);</a> |
| <span class="sourceLineNo">055</span><a id="line.55"> }</a> |
| <span class="sourceLineNo">056</span><a id="line.56"></a> |
| <span class="sourceLineNo">057</span><a id="line.57"> /**</a> |
| <span class="sourceLineNo">058</span><a id="line.58"> * Ensures the <code>methodInvocation</code> is allowed to execute first before proceeding by calling the</a> |
| <span class="sourceLineNo">059</span><a id="line.59"> * {@link #assertAuthorized(org.apache.shiro.aop.MethodInvocation) assertAuthorized} method first.</a> |
| <span class="sourceLineNo">060</span><a id="line.60"> *</a> |
| <span class="sourceLineNo">061</span><a id="line.61"> * @param methodInvocation the method invocation to check for authorization prior to allowing it to proceed/execute.</a> |
| <span class="sourceLineNo">062</span><a id="line.62"> * @return the return value from the method invocation (the value of {@link org.apache.shiro.aop.MethodInvocation#proceed() MethodInvocation.proceed()}).</a> |
| <span class="sourceLineNo">063</span><a id="line.63"> * @throws org.apache.shiro.authz.AuthorizationException if the <code>MethodInvocation</code> is not allowed to proceed.</a> |
| <span class="sourceLineNo">064</span><a id="line.64"> * @throws Throwable if any other error occurs.</a> |
| <span class="sourceLineNo">065</span><a id="line.65"> */</a> |
| <span class="sourceLineNo">066</span><a id="line.66"> public Object invoke(MethodInvocation methodInvocation) throws Throwable {</a> |
| <span class="sourceLineNo">067</span><a id="line.67"> assertAuthorized(methodInvocation);</a> |
| <span class="sourceLineNo">068</span><a id="line.68"> return methodInvocation.proceed();</a> |
| <span class="sourceLineNo">069</span><a id="line.69"> }</a> |
| <span class="sourceLineNo">070</span><a id="line.70"></a> |
| <span class="sourceLineNo">071</span><a id="line.71"> /**</a> |
| <span class="sourceLineNo">072</span><a id="line.72"> * Ensures the calling Subject is authorized to execute the specified <code>MethodInvocation</code>.</a> |
| <span class="sourceLineNo">073</span><a id="line.73"> * <p/></a> |
| <span class="sourceLineNo">074</span><a id="line.74"> * As this is an AnnotationMethodInterceptor, this implementation merely delegates to the internal</a> |
| <span class="sourceLineNo">075</span><a id="line.75"> * {@link AuthorizingAnnotationHandler AuthorizingAnnotationHandler} by first acquiring the annotation by</a> |
| <span class="sourceLineNo">076</span><a id="line.76"> * calling {@link #getAnnotation(MethodInvocation) getAnnotation(methodInvocation)} and then calls</a> |
| <span class="sourceLineNo">077</span><a id="line.77"> * {@link AuthorizingAnnotationHandler#assertAuthorized(java.lang.annotation.Annotation) handler.assertAuthorized(annotation)}.</a> |
| <span class="sourceLineNo">078</span><a id="line.78"> *</a> |
| <span class="sourceLineNo">079</span><a id="line.79"> * @param mi the <code>MethodInvocation</code> to check to see if it is allowed to proceed/execute.</a> |
| <span class="sourceLineNo">080</span><a id="line.80"> * @throws AuthorizationException if the method invocation is not allowed to continue/execute.</a> |
| <span class="sourceLineNo">081</span><a id="line.81"> */</a> |
| <span class="sourceLineNo">082</span><a id="line.82"> public void assertAuthorized(MethodInvocation mi) throws AuthorizationException {</a> |
| <span class="sourceLineNo">083</span><a id="line.83"> try {</a> |
| <span class="sourceLineNo">084</span><a id="line.84"> ((AuthorizingAnnotationHandler)getHandler()).assertAuthorized(getAnnotation(mi));</a> |
| <span class="sourceLineNo">085</span><a id="line.85"> }</a> |
| <span class="sourceLineNo">086</span><a id="line.86"> catch(AuthorizationException ae) {</a> |
| <span class="sourceLineNo">087</span><a id="line.87"> // Annotation handler doesn't know why it was called, so add the information here if possible. </a> |
| <span class="sourceLineNo">088</span><a id="line.88"> // Don't wrap the exception here since we don't want to mask the specific exception, such as </a> |
| <span class="sourceLineNo">089</span><a id="line.89"> // UnauthenticatedException etc. </a> |
| <span class="sourceLineNo">090</span><a id="line.90"> if (ae.getCause() == null) ae.initCause(new AuthorizationException("Not authorized to invoke method: " + mi.getMethod()));</a> |
| <span class="sourceLineNo">091</span><a id="line.91"> throw ae;</a> |
| <span class="sourceLineNo">092</span><a id="line.92"> } </a> |
| <span class="sourceLineNo">093</span><a id="line.93"> }</a> |
| <span class="sourceLineNo">094</span><a id="line.94">}</a> |
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