| <HTML> |
| <BODY BGCOLOR="white"> |
| <PRE> |
| <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.authc;<a name="line.19"></a> |
| <FONT color="green">020</FONT> <a name="line.20"></a> |
| <FONT color="green">021</FONT> import org.apache.shiro.web.filter.PathMatchingFilter;<a name="line.21"></a> |
| <FONT color="green">022</FONT> <a name="line.22"></a> |
| <FONT color="green">023</FONT> import javax.servlet.ServletRequest;<a name="line.23"></a> |
| <FONT color="green">024</FONT> import javax.servlet.ServletResponse;<a name="line.24"></a> |
| <FONT color="green">025</FONT> <a name="line.25"></a> |
| <FONT color="green">026</FONT> /**<a name="line.26"></a> |
| <FONT color="green">027</FONT> * Filter that allows access to a path immeidately without performing security checks of any kind.<a name="line.27"></a> |
| <FONT color="green">028</FONT> * <p/><a name="line.28"></a> |
| <FONT color="green">029</FONT> * This filter is useful primarily in exclusionary policies, where you have defined a url pattern<a name="line.29"></a> |
| <FONT color="green">030</FONT> * to require a certain security level, but maybe only subset of urls in that pattern should allow any access.<a name="line.30"></a> |
| <FONT color="green">031</FONT> * <p/><a name="line.31"></a> |
| <FONT color="green">032</FONT> * For example, if you had a user-only section of a website, you might want to require that access to<a name="line.32"></a> |
| <FONT color="green">033</FONT> * any url in that section must be from an authenticated user.<a name="line.33"></a> |
| <FONT color="green">034</FONT> * <p/><a name="line.34"></a> |
| <FONT color="green">035</FONT> * Here is how that would look in the IniShiroFilter configuration:<a name="line.35"></a> |
| <FONT color="green">036</FONT> * <p/><a name="line.36"></a> |
| <FONT color="green">037</FONT> * <code>[urls]<br/><a name="line.37"></a> |
| <FONT color="green">038</FONT> * /user/** = authc</code><a name="line.38"></a> |
| <FONT color="green">039</FONT> * <p/><a name="line.39"></a> |
| <FONT color="green">040</FONT> * But if you wanted <code>/user/signup/**</code> to be available to anyone, you have to exclude that path since<a name="line.40"></a> |
| <FONT color="green">041</FONT> * it is a subset of the first. This is where the AnonymousFilter ('anon') is useful:<a name="line.41"></a> |
| <FONT color="green">042</FONT> * <p/><a name="line.42"></a> |
| <FONT color="green">043</FONT> * <code>[urls]<br/><a name="line.43"></a> |
| <FONT color="green">044</FONT> * /user/signup/** = anon<br/><a name="line.44"></a> |
| <FONT color="green">045</FONT> * /user/** = authc</code>><a name="line.45"></a> |
| <FONT color="green">046</FONT> * <p/><a name="line.46"></a> |
| <FONT color="green">047</FONT> * Since the url pattern definitions follow a 'first match wins' paradigm, the <code>anon</code> filter will<a name="line.47"></a> |
| <FONT color="green">048</FONT> * match the <code>/user/signup/**</code> paths and the <code>/user/**</code> path chain will not be evaluated.<a name="line.48"></a> |
| <FONT color="green">049</FONT> *<a name="line.49"></a> |
| <FONT color="green">050</FONT> * @since 0.9<a name="line.50"></a> |
| <FONT color="green">051</FONT> */<a name="line.51"></a> |
| <FONT color="green">052</FONT> public class AnonymousFilter extends PathMatchingFilter {<a name="line.52"></a> |
| <FONT color="green">053</FONT> <a name="line.53"></a> |
| <FONT color="green">054</FONT> /**<a name="line.54"></a> |
| <FONT color="green">055</FONT> * Always returns <code>true</code> allowing unchecked access to the underlying path or resource.<a name="line.55"></a> |
| <FONT color="green">056</FONT> *<a name="line.56"></a> |
| <FONT color="green">057</FONT> * @return <code>true</code> always, allowing unchecked access to the underlying path or resource.<a name="line.57"></a> |
| <FONT color="green">058</FONT> */<a name="line.58"></a> |
| <FONT color="green">059</FONT> @Override<a name="line.59"></a> |
| <FONT color="green">060</FONT> protected boolean onPreHandle(ServletRequest request, ServletResponse response, Object mappedValue) {<a name="line.60"></a> |
| <FONT color="green">061</FONT> // Always return true since we allow access to anyone<a name="line.61"></a> |
| <FONT color="green">062</FONT> return true;<a name="line.62"></a> |
| <FONT color="green">063</FONT> }<a name="line.63"></a> |
| <FONT color="green">064</FONT> <a name="line.64"></a> |
| <FONT color="green">065</FONT> }<a name="line.65"></a> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| </PRE> |
| </BODY> |
| </HTML> |
