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| <FONT color="green">001</FONT> /*<a name="line.1"></a> |
| <FONT color="green">002</FONT> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a> |
| <FONT color="green">003</FONT> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a> |
| <FONT color="green">004</FONT> * distributed with this work for additional information<a name="line.4"></a> |
| <FONT color="green">005</FONT> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a> |
| <FONT color="green">006</FONT> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a> |
| <FONT color="green">007</FONT> * "License"); you may not use this file except in compliance<a name="line.7"></a> |
| <FONT color="green">008</FONT> * with the License. You may obtain a copy of the License at<a name="line.8"></a> |
| <FONT color="green">009</FONT> *<a name="line.9"></a> |
| <FONT color="green">010</FONT> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a> |
| <FONT color="green">011</FONT> *<a name="line.11"></a> |
| <FONT color="green">012</FONT> * Unless required by applicable law or agreed to in writing,<a name="line.12"></a> |
| <FONT color="green">013</FONT> * software distributed under the License is distributed on an<a name="line.13"></a> |
| <FONT color="green">014</FONT> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY<a name="line.14"></a> |
| <FONT color="green">015</FONT> * KIND, either express or implied. See the License for the<a name="line.15"></a> |
| <FONT color="green">016</FONT> * specific language governing permissions and limitations<a name="line.16"></a> |
| <FONT color="green">017</FONT> * under the License.<a name="line.17"></a> |
| <FONT color="green">018</FONT> */<a name="line.18"></a> |
| <FONT color="green">019</FONT> package org.apache.shiro.web.filter.authz;<a name="line.19"></a> |
| <FONT color="green">020</FONT> <a name="line.20"></a> |
| <FONT color="green">021</FONT> import org.apache.shiro.util.StringUtils;<a name="line.21"></a> |
| <FONT color="green">022</FONT> import org.slf4j.Logger;<a name="line.22"></a> |
| <FONT color="green">023</FONT> import org.slf4j.LoggerFactory;<a name="line.23"></a> |
| <FONT color="green">024</FONT> <a name="line.24"></a> |
| <FONT color="green">025</FONT> import javax.servlet.ServletRequest;<a name="line.25"></a> |
| <FONT color="green">026</FONT> import javax.servlet.ServletResponse;<a name="line.26"></a> |
| <FONT color="green">027</FONT> import javax.servlet.http.HttpServletRequest;<a name="line.27"></a> |
| <FONT color="green">028</FONT> import java.io.IOException;<a name="line.28"></a> |
| <FONT color="green">029</FONT> import java.util.HashMap;<a name="line.29"></a> |
| <FONT color="green">030</FONT> import java.util.Map;<a name="line.30"></a> |
| <FONT color="green">031</FONT> <a name="line.31"></a> |
| <FONT color="green">032</FONT> /**<a name="line.32"></a> |
| <FONT color="green">033</FONT> * A filter that translates an HTTP Request's Method (eg GET, POST, etc)<a name="line.33"></a> |
| <FONT color="green">034</FONT> * into an corresponding action (verb) and uses that verb to construct a permission that will be checked to determine<a name="line.34"></a> |
| <FONT color="green">035</FONT> * access.<a name="line.35"></a> |
| <FONT color="green">036</FONT> * <p/><a name="line.36"></a> |
| <FONT color="green">037</FONT> * This Filter is primarily provided to support REST environments where the type (Method)<a name="line.37"></a> |
| <FONT color="green">038</FONT> * of request translates to an action being performed on one or more resources. This paradigm works well with Shiro's<a name="line.38"></a> |
| <FONT color="green">039</FONT> * concepts of using permissions for access control and can be leveraged to easily perform permission checks.<a name="line.39"></a> |
| <FONT color="green">040</FONT> * <p/><a name="line.40"></a> |
| <FONT color="green">041</FONT> * This filter functions as follows:<a name="line.41"></a> |
| <FONT color="green">042</FONT> * <ol><a name="line.42"></a> |
| <FONT color="green">043</FONT> * <li>The incoming HTTP request's Method (GET, POST, PUT, DELETE, etc) is discovered.</li><a name="line.43"></a> |
| <FONT color="green">044</FONT> * <li>The Method is translated into a more 'application friendly' verb, such as 'create', edit', 'delete', etc.</li><a name="line.44"></a> |
| <FONT color="green">045</FONT> * <li>The verb is appended to any configured permissions for the<a name="line.45"></a> |
| <FONT color="green">046</FONT> * {@link org.apache.shiro.web.filter.PathMatchingFilter currently matching path}.</li><a name="line.46"></a> |
| <FONT color="green">047</FONT> * <li>If the current {@code Subject} {@link org.apache.shiro.subject.Subject#isPermitted(String) isPermitted} to<a name="line.47"></a> |
| <FONT color="green">048</FONT> * perform the resolved action, the request is allowed to continue.</li><a name="line.48"></a> |
| <FONT color="green">049</FONT> * </ol><a name="line.49"></a> |
| <FONT color="green">050</FONT> * <p/><a name="line.50"></a> |
| <FONT color="green">051</FONT> * For example, if the following filter chain was defined, where 'rest' was the name given to a filter instance of<a name="line.51"></a> |
| <FONT color="green">052</FONT> * this class:<a name="line.52"></a> |
| <FONT color="green">053</FONT> * <pre><a name="line.53"></a> |
| <FONT color="green">054</FONT> * /user/** = rest[user]</pre><a name="line.54"></a> |
| <FONT color="green">055</FONT> * Then an HTTP {@code GET} request to {@code /user/1234} would translate to the constructed permission<a name="line.55"></a> |
| <FONT color="green">056</FONT> * {@code user:read} (GET is mapped to the 'read' action) and execute the permission check<a name="line.56"></a> |
| <FONT color="green">057</FONT> * <code>Subject.isPermitted(&quot;user:read&quot;)</code> in order to allow the request to continue.<a name="line.57"></a> |
| <FONT color="green">058</FONT> * <p/><a name="line.58"></a> |
| <FONT color="green">059</FONT> * Similarly, an HTTP {@code POST} to {@code /user} would translate to the constructed permission<a name="line.59"></a> |
| <FONT color="green">060</FONT> * {@code user:create} (POST is mapped to the 'create' action) and execute the permission check<a name="line.60"></a> |
| <FONT color="green">061</FONT> * <code>Subject.isPermitted(&quot;user:create&quot;)</code> in order to allow the request to continue.<a name="line.61"></a> |
| <FONT color="green">062</FONT> * <p/><a name="line.62"></a> |
| <FONT color="green">063</FONT> * <h3>Method To Verb Mapping</h3><a name="line.63"></a> |
| <FONT color="green">064</FONT> * The following table represents the default HTTP Method-to-action verb mapping:<a name="line.64"></a> |
| <FONT color="green">065</FONT> * <table><a name="line.65"></a> |
| <FONT color="green">066</FONT> * <tr><th>HTTP Method</th><th>Mapped Action</th><th>Example Permission</th><th>Runtime Check</th></tr><a name="line.66"></a> |
| <FONT color="green">067</FONT> * <tr><td>head</td><td>read</td><td>perm1</td><td>perm1:read</td></tr><a name="line.67"></a> |
| <FONT color="green">068</FONT> * <tr><td>get</td><td>read</td><td>perm2</td><td>perm2:read</td></tr><a name="line.68"></a> |
| <FONT color="green">069</FONT> * <tr><td>put</td><td>update</td><td>perm3</td><td>perm3:update</td></tr><a name="line.69"></a> |
| <FONT color="green">070</FONT> * <tr><td>post</td><td>create</td><td>perm4</td><td>perm4:create</td></tr><a name="line.70"></a> |
| <FONT color="green">071</FONT> * <tr><td>mkcol</td><td>create</td><td>perm5</td><td>perm5:create</td></tr><a name="line.71"></a> |
| <FONT color="green">072</FONT> * <tr><td>options</td><td>read</td><td>perm6</td><td>perm6:read</td></tr><a name="line.72"></a> |
| <FONT color="green">073</FONT> * <tr><td>trace</td><td>read</td><td>perm7</td><td>perm7:read</td></tr><a name="line.73"></a> |
| <FONT color="green">074</FONT> * </table><a name="line.74"></a> |
| <FONT color="green">075</FONT> *<a name="line.75"></a> |
| <FONT color="green">076</FONT> * @since 1.0<a name="line.76"></a> |
| <FONT color="green">077</FONT> */<a name="line.77"></a> |
| <FONT color="green">078</FONT> public class HttpMethodPermissionFilter extends PermissionsAuthorizationFilter {<a name="line.78"></a> |
| <FONT color="green">079</FONT> <a name="line.79"></a> |
| <FONT color="green">080</FONT> /**<a name="line.80"></a> |
| <FONT color="green">081</FONT> * This class's private logger.<a name="line.81"></a> |
| <FONT color="green">082</FONT> */<a name="line.82"></a> |
| <FONT color="green">083</FONT> private static final Logger log = LoggerFactory.getLogger(HttpMethodPermissionFilter.class);<a name="line.83"></a> |
| <FONT color="green">084</FONT> <a name="line.84"></a> |
| <FONT color="green">085</FONT> /**<a name="line.85"></a> |
| <FONT color="green">086</FONT> * Map that contains a mapping between http methods to permission actions (verbs)<a name="line.86"></a> |
| <FONT color="green">087</FONT> */<a name="line.87"></a> |
| <FONT color="green">088</FONT> private final Map<String, String> httpMethodActions = new HashMap<String, String>();<a name="line.88"></a> |
| <FONT color="green">089</FONT> <a name="line.89"></a> |
| <FONT color="green">090</FONT> //Actions representing HTTP Method values (GET -> read, POST -> create, etc)<a name="line.90"></a> |
| <FONT color="green">091</FONT> private static final String CREATE_ACTION = "create";<a name="line.91"></a> |
| <FONT color="green">092</FONT> private static final String READ_ACTION = "read";<a name="line.92"></a> |
| <FONT color="green">093</FONT> private static final String UPDATE_ACTION = "update";<a name="line.93"></a> |
| <FONT color="green">094</FONT> private static final String DELETE_ACTION = "delete";<a name="line.94"></a> |
| <FONT color="green">095</FONT> <a name="line.95"></a> |
| <FONT color="green">096</FONT> /**<a name="line.96"></a> |
| <FONT color="green">097</FONT> * Enum of constants for well-defined mapping values. Used in the Filter's constructor to perform the map instance<a name="line.97"></a> |
| <FONT color="green">098</FONT> * used at runtime.<a name="line.98"></a> |
| <FONT color="green">099</FONT> */<a name="line.99"></a> |
| <FONT color="green">100</FONT> private static enum HttpMethodAction {<a name="line.100"></a> |
| <FONT color="green">101</FONT> <a name="line.101"></a> |
| <FONT color="green">102</FONT> DELETE(DELETE_ACTION),<a name="line.102"></a> |
| <FONT color="green">103</FONT> GET(READ_ACTION),<a name="line.103"></a> |
| <FONT color="green">104</FONT> HEAD(READ_ACTION),<a name="line.104"></a> |
| <FONT color="green">105</FONT> MKCOL(CREATE_ACTION), //webdav, but useful here<a name="line.105"></a> |
| <FONT color="green">106</FONT> OPTIONS(READ_ACTION),<a name="line.106"></a> |
| <FONT color="green">107</FONT> POST(CREATE_ACTION),<a name="line.107"></a> |
| <FONT color="green">108</FONT> PUT(UPDATE_ACTION),<a name="line.108"></a> |
| <FONT color="green">109</FONT> TRACE(READ_ACTION);<a name="line.109"></a> |
| <FONT color="green">110</FONT> <a name="line.110"></a> |
| <FONT color="green">111</FONT> private final String action;<a name="line.111"></a> |
| <FONT color="green">112</FONT> <a name="line.112"></a> |
| <FONT color="green">113</FONT> private HttpMethodAction(String action) {<a name="line.113"></a> |
| <FONT color="green">114</FONT> this.action = action;<a name="line.114"></a> |
| <FONT color="green">115</FONT> }<a name="line.115"></a> |
| <FONT color="green">116</FONT> <a name="line.116"></a> |
| <FONT color="green">117</FONT> public String getAction() {<a name="line.117"></a> |
| <FONT color="green">118</FONT> return this.action;<a name="line.118"></a> |
| <FONT color="green">119</FONT> }<a name="line.119"></a> |
| <FONT color="green">120</FONT> }<a name="line.120"></a> |
| <FONT color="green">121</FONT> <a name="line.121"></a> |
| <FONT color="green">122</FONT> /**<a name="line.122"></a> |
| <FONT color="green">123</FONT> * Creates the filter instance with default method-to-action values in the instance's<a name="line.123"></a> |
| <FONT color="green">124</FONT> * {@link #getHttpMethodActions() http method actions map}.<a name="line.124"></a> |
| <FONT color="green">125</FONT> */<a name="line.125"></a> |
| <FONT color="green">126</FONT> public HttpMethodPermissionFilter() {<a name="line.126"></a> |
| <FONT color="green">127</FONT> for (HttpMethodAction methodAction : HttpMethodAction.values()) {<a name="line.127"></a> |
| <FONT color="green">128</FONT> httpMethodActions.put(methodAction.name().toLowerCase(), methodAction.getAction());<a name="line.128"></a> |
| <FONT color="green">129</FONT> }<a name="line.129"></a> |
| <FONT color="green">130</FONT> }<a name="line.130"></a> |
| <FONT color="green">131</FONT> <a name="line.131"></a> |
| <FONT color="green">132</FONT> /**<a name="line.132"></a> |
| <FONT color="green">133</FONT> * Returns the HTTP Method name (key) to action verb (value) mapping used to resolve actions based on an<a name="line.133"></a> |
| <FONT color="green">134</FONT> * incoming {@code HttpServletRequest}. All keys and values are lower-case. The<a name="line.134"></a> |
| <FONT color="green">135</FONT> * default key/value pairs are defined in the top class-level JavaDoc.<a name="line.135"></a> |
| <FONT color="green">136</FONT> *<a name="line.136"></a> |
| <FONT color="green">137</FONT> * @return the HTTP Method lower-case name (key) to lower-case action verb (value) mapping<a name="line.137"></a> |
| <FONT color="green">138</FONT> */<a name="line.138"></a> |
| <FONT color="green">139</FONT> protected Map<String, String> getHttpMethodActions() {<a name="line.139"></a> |
| <FONT color="green">140</FONT> return this.httpMethodActions;<a name="line.140"></a> |
| <FONT color="green">141</FONT> }<a name="line.141"></a> |
| <FONT color="green">142</FONT> <a name="line.142"></a> |
| <FONT color="green">143</FONT> /**<a name="line.143"></a> |
| <FONT color="green">144</FONT> * Determines the action (verb) attempting to be performed on the filtered resource by the current request.<a name="line.144"></a> |
| <FONT color="green">145</FONT> * <p/><a name="line.145"></a> |
| <FONT color="green">146</FONT> * This implementation expects the incoming request to be an {@link HttpServletRequest} and returns a mapped<a name="line.146"></a> |
| <FONT color="green">147</FONT> * action based on the HTTP request {@link javax.servlet.http.HttpServletRequest#getMethod() method}.<a name="line.147"></a> |
| <FONT color="green">148</FONT> *<a name="line.148"></a> |
| <FONT color="green">149</FONT> * @param request to pull the method from.<a name="line.149"></a> |
| <FONT color="green">150</FONT> * @return The string equivalent verb of the http method.<a name="line.150"></a> |
| <FONT color="green">151</FONT> */<a name="line.151"></a> |
| <FONT color="green">152</FONT> protected String getHttpMethodAction(ServletRequest request) {<a name="line.152"></a> |
| <FONT color="green">153</FONT> String method = ((HttpServletRequest) request).getMethod();<a name="line.153"></a> |
| <FONT color="green">154</FONT> return getHttpMethodAction(method);<a name="line.154"></a> |
| <FONT color="green">155</FONT> }<a name="line.155"></a> |
| <FONT color="green">156</FONT> <a name="line.156"></a> |
| <FONT color="green">157</FONT> /**<a name="line.157"></a> |
| <FONT color="green">158</FONT> * Determines the corresponding application action that will be performed on the filtered resource based on the<a name="line.158"></a> |
| <FONT color="green">159</FONT> * specified HTTP method (GET, POST, etc).<a name="line.159"></a> |
| <FONT color="green">160</FONT> *<a name="line.160"></a> |
| <FONT color="green">161</FONT> * @param method to be translated into the verb.<a name="line.161"></a> |
| <FONT color="green">162</FONT> * @return The string equivalent verb of the method.<a name="line.162"></a> |
| <FONT color="green">163</FONT> */<a name="line.163"></a> |
| <FONT color="green">164</FONT> protected String getHttpMethodAction(String method) {<a name="line.164"></a> |
| <FONT color="green">165</FONT> String lc = method.toLowerCase();<a name="line.165"></a> |
| <FONT color="green">166</FONT> String resolved = getHttpMethodActions().get(lc);<a name="line.166"></a> |
| <FONT color="green">167</FONT> return resolved != null ? resolved : method;<a name="line.167"></a> |
| <FONT color="green">168</FONT> }<a name="line.168"></a> |
| <FONT color="green">169</FONT> <a name="line.169"></a> |
| <FONT color="green">170</FONT> /**<a name="line.170"></a> |
| <FONT color="green">171</FONT> * Returns a collection of String permissions with which to perform a permission check to determine if the filter<a name="line.171"></a> |
| <FONT color="green">172</FONT> * will allow the request to continue.<a name="line.172"></a> |
| <FONT color="green">173</FONT> * <p/><a name="line.173"></a> |
| <FONT color="green">174</FONT> * This implementation merely delegates to {@link #buildPermissions(String[], String)} and ignores the inbound<a name="line.174"></a> |
| <FONT color="green">175</FONT> * HTTP servlet request, but it can be overridden by subclasses for more complex request-specific building logic<a name="line.175"></a> |
| <FONT color="green">176</FONT> * if necessary.<a name="line.176"></a> |
| <FONT color="green">177</FONT> *<a name="line.177"></a> |
| <FONT color="green">178</FONT> * @param request the inbound HTTP request - ignored in this implementation, but available to<a name="line.178"></a> |
| <FONT color="green">179</FONT> * subclasses for more complex construction building logic if necessary<a name="line.179"></a> |
| <FONT color="green">180</FONT> * @param configuredPerms any url-specific permissions mapped to this filter in the URL rules mappings.<a name="line.180"></a> |
| <FONT color="green">181</FONT> * @param action the application-friendly action (verb) resolved based on the HTTP Method name.<a name="line.181"></a> |
| <FONT color="green">182</FONT> * @return a collection of String permissions with which to perform a permission check to determine if the filter<a name="line.182"></a> |
| <FONT color="green">183</FONT> * will allow the request to continue.<a name="line.183"></a> |
| <FONT color="green">184</FONT> */<a name="line.184"></a> |
| <FONT color="green">185</FONT> protected String[] buildPermissions(HttpServletRequest request, String[] configuredPerms, String action) {<a name="line.185"></a> |
| <FONT color="green">186</FONT> return buildPermissions(configuredPerms, action);<a name="line.186"></a> |
| <FONT color="green">187</FONT> }<a name="line.187"></a> |
| <FONT color="green">188</FONT> <a name="line.188"></a> |
| <FONT color="green">189</FONT> /**<a name="line.189"></a> |
| <FONT color="green">190</FONT> * Builds a new array of permission strings based on the original argument, appending the specified action verb<a name="line.190"></a> |
| <FONT color="green">191</FONT> * to each one per {@link org.apache.shiro.authz.permission.WildcardPermission WildcardPermission} conventions. The<a name="line.191"></a> |
| <FONT color="green">192</FONT> * built permission strings will be the ones used at runtime during the permission check that determines if filter<a name="line.192"></a> |
| <FONT color="green">193</FONT> * access should be allowed to continue or not.<a name="line.193"></a> |
| <FONT color="green">194</FONT> * <p/><a name="line.194"></a> |
| <FONT color="green">195</FONT> * For example, if the {@code configuredPerms} argument contains the following 3 permission strings:<a name="line.195"></a> |
| <FONT color="green">196</FONT> * <p/><a name="line.196"></a> |
| <FONT color="green">197</FONT> * <ol><a name="line.197"></a> |
| <FONT color="green">198</FONT> * <li>permission:one</li><a name="line.198"></a> |
| <FONT color="green">199</FONT> * <li>permission:two</li><a name="line.199"></a> |
| <FONT color="green">200</FONT> * <li>permission:three</li><a name="line.200"></a> |
| <FONT color="green">201</FONT> * </ol><a name="line.201"></a> |
| <FONT color="green">202</FONT> * And the action is {@code read}, then the return value will be:<a name="line.202"></a> |
| <FONT color="green">203</FONT> * <ol><a name="line.203"></a> |
| <FONT color="green">204</FONT> * <li>permission:one:read</li><a name="line.204"></a> |
| <FONT color="green">205</FONT> * <li>permission:two:read</li><a name="line.205"></a> |
| <FONT color="green">206</FONT> * <li>permission:three:read</li><a name="line.206"></a> |
| <FONT color="green">207</FONT> * </ol><a name="line.207"></a> |
| <FONT color="green">208</FONT> * per {@link org.apache.shiro.authz.permission.WildcardPermission WildcardPermission} conventions. Subclasses<a name="line.208"></a> |
| <FONT color="green">209</FONT> * are of course free to override this method or the<a name="line.209"></a> |
| <FONT color="green">210</FONT> * {@link #buildPermissions(javax.servlet.http.HttpServletRequest, String[], String) buildPermissions} request<a name="line.210"></a> |
| <FONT color="green">211</FONT> * variant for custom building logic or with different permission formats.<a name="line.211"></a> |
| <FONT color="green">212</FONT> *<a name="line.212"></a> |
| <FONT color="green">213</FONT> * @param configuredPerms list of configuredPerms to be converted.<a name="line.213"></a> |
| <FONT color="green">214</FONT> * @param action the resolved action based on the request method to be appended to permission strings.<a name="line.214"></a> |
| <FONT color="green">215</FONT> * @return an array of permission strings with each element appended with the action.<a name="line.215"></a> |
| <FONT color="green">216</FONT> */<a name="line.216"></a> |
| <FONT color="green">217</FONT> protected String[] buildPermissions(String[] configuredPerms, String action) {<a name="line.217"></a> |
| <FONT color="green">218</FONT> if (configuredPerms == null || configuredPerms.length <= 0 || !StringUtils.hasText(action)) {<a name="line.218"></a> |
| <FONT color="green">219</FONT> return configuredPerms;<a name="line.219"></a> |
| <FONT color="green">220</FONT> }<a name="line.220"></a> |
| <FONT color="green">221</FONT> <a name="line.221"></a> |
| <FONT color="green">222</FONT> String[] mappedPerms = new String[configuredPerms.length];<a name="line.222"></a> |
| <FONT color="green">223</FONT> <a name="line.223"></a> |
| <FONT color="green">224</FONT> // loop and append :action<a name="line.224"></a> |
| <FONT color="green">225</FONT> for (int i = 0; i < configuredPerms.length; i++) {<a name="line.225"></a> |
| <FONT color="green">226</FONT> mappedPerms[i] = configuredPerms[i] + ":" + action;<a name="line.226"></a> |
| <FONT color="green">227</FONT> }<a name="line.227"></a> |
| <FONT color="green">228</FONT> <a name="line.228"></a> |
| <FONT color="green">229</FONT> if (log.isTraceEnabled()) {<a name="line.229"></a> |
| <FONT color="green">230</FONT> StringBuilder sb = new StringBuilder();<a name="line.230"></a> |
| <FONT color="green">231</FONT> for (int i = 0; i < mappedPerms.length; i++) {<a name="line.231"></a> |
| <FONT color="green">232</FONT> if (i > 0) {<a name="line.232"></a> |
| <FONT color="green">233</FONT> sb.append(", ");<a name="line.233"></a> |
| <FONT color="green">234</FONT> }<a name="line.234"></a> |
| <FONT color="green">235</FONT> sb.append(mappedPerms[i]);<a name="line.235"></a> |
| <FONT color="green">236</FONT> }<a name="line.236"></a> |
| <FONT color="green">237</FONT> log.trace("MAPPED '{}' action to permission(s) '{}'", action, sb);<a name="line.237"></a> |
| <FONT color="green">238</FONT> }<a name="line.238"></a> |
| <FONT color="green">239</FONT> <a name="line.239"></a> |
| <FONT color="green">240</FONT> return mappedPerms;<a name="line.240"></a> |
| <FONT color="green">241</FONT> }<a name="line.241"></a> |
| <FONT color="green">242</FONT> <a name="line.242"></a> |
| <FONT color="green">243</FONT> /**<a name="line.243"></a> |
| <FONT color="green">244</FONT> * Resolves an 'application friendly' action verb based on the {@code HttpServletRequest}'s method, appends that<a name="line.244"></a> |
| <FONT color="green">245</FONT> * action to each configured permission (the {@code mappedValue} argument is a {@code String[]} array), and<a name="line.245"></a> |
| <FONT color="green">246</FONT> * delegates the permission check for the newly constructed permission(s) to the superclass<a name="line.246"></a> |
| <FONT color="green">247</FONT> * {@link PermissionsAuthorizationFilter#isAccessAllowed(javax.servlet.ServletRequest, javax.servlet.ServletResponse, Object) isAccessAllowed}<a name="line.247"></a> |
| <FONT color="green">248</FONT> * implementation to perform the actual permission check.<a name="line.248"></a> |
| <FONT color="green">249</FONT> *<a name="line.249"></a> |
| <FONT color="green">250</FONT> * @param request the inbound {@code ServletRequest}<a name="line.250"></a> |
| <FONT color="green">251</FONT> * @param response the outbound {@code ServletResponse}<a name="line.251"></a> |
| <FONT color="green">252</FONT> * @param mappedValue the filter-specific config value mapped to this filter in the URL rules mappings.<a name="line.252"></a> |
| <FONT color="green">253</FONT> * @return {@code true} if the request should proceed through the filter normally, {@code false} if the<a name="line.253"></a> |
| <FONT color="green">254</FONT> * request should be processed by this filter's<a name="line.254"></a> |
| <FONT color="green">255</FONT> * {@link #onAccessDenied(ServletRequest,ServletResponse,Object)} method instead.<a name="line.255"></a> |
| <FONT color="green">256</FONT> * @throws IOException<a name="line.256"></a> |
| <FONT color="green">257</FONT> */<a name="line.257"></a> |
| <FONT color="green">258</FONT> @Override<a name="line.258"></a> |
| <FONT color="green">259</FONT> public boolean isAccessAllowed(ServletRequest request, ServletResponse response, Object mappedValue) throws IOException {<a name="line.259"></a> |
| <FONT color="green">260</FONT> String[] perms = (String[]) mappedValue;<a name="line.260"></a> |
| <FONT color="green">261</FONT> // append the http action to the end of the permissions and then back to super<a name="line.261"></a> |
| <FONT color="green">262</FONT> String action = getHttpMethodAction(request);<a name="line.262"></a> |
| <FONT color="green">263</FONT> String[] resolvedPerms = buildPermissions(perms, action);<a name="line.263"></a> |
| <FONT color="green">264</FONT> return super.isAccessAllowed(request, response, resolvedPerms);<a name="line.264"></a> |
| <FONT color="green">265</FONT> }<a name="line.265"></a> |
| <FONT color="green">266</FONT> }<a name="line.266"></a> |
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