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| <a name="1" href="#1">1</a> <em class="jxr_comment">/*</em> |
| <a name="2" href="#2">2</a> <em class="jxr_comment"> * Licensed to the Apache Software Foundation (ASF) under one</em> |
| <a name="3" href="#3">3</a> <em class="jxr_comment"> * or more contributor license agreements. See the NOTICE file</em> |
| <a name="4" href="#4">4</a> <em class="jxr_comment"> * distributed with this work for additional information</em> |
| <a name="5" href="#5">5</a> <em class="jxr_comment"> * regarding copyright ownership. The ASF licenses this file</em> |
| <a name="6" href="#6">6</a> <em class="jxr_comment"> * to you under the Apache License, Version 2.0 (the</em> |
| <a name="7" href="#7">7</a> <em class="jxr_comment"> * "License"); you may not use this file except in compliance</em> |
| <a name="8" href="#8">8</a> <em class="jxr_comment"> * with the License. You may obtain a copy of the License at</em> |
| <a name="9" href="#9">9</a> <em class="jxr_comment"> *</em> |
| <a name="10" href="#10">10</a> <em class="jxr_comment"> * <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em> |
| <a name="11" href="#11">11</a> <em class="jxr_comment"> *</em> |
| <a name="12" href="#12">12</a> <em class="jxr_comment"> * Unless required by applicable law or agreed to in writing,</em> |
| <a name="13" href="#13">13</a> <em class="jxr_comment"> * software distributed under the License is distributed on an</em> |
| <a name="14" href="#14">14</a> <em class="jxr_comment"> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</em> |
| <a name="15" href="#15">15</a> <em class="jxr_comment"> * KIND, either express or implied. See the License for the</em> |
| <a name="16" href="#16">16</a> <em class="jxr_comment"> * specific language governing permissions and limitations</em> |
| <a name="17" href="#17">17</a> <em class="jxr_comment"> * under the License.</em> |
| <a name="18" href="#18">18</a> <em class="jxr_comment"> */</em> |
| <a name="19" href="#19">19</a> <strong class="jxr_keyword">package</strong> org.apache.shiro.web.filter.authc; |
| <a name="20" href="#20">20</a> |
| <a name="21" href="#21">21</a> <strong class="jxr_keyword">import</strong> org.apache.shiro.authc.AuthenticationException; |
| <a name="22" href="#22">22</a> <strong class="jxr_keyword">import</strong> org.apache.shiro.authc.AuthenticationToken; |
| <a name="23" href="#23">23</a> <strong class="jxr_keyword">import</strong> org.apache.shiro.authc.UsernamePasswordToken; |
| <a name="24" href="#24">24</a> <strong class="jxr_keyword">import</strong> org.apache.shiro.authz.UnauthenticatedException; |
| <a name="25" href="#25">25</a> <strong class="jxr_keyword">import</strong> org.apache.shiro.subject.Subject; |
| <a name="26" href="#26">26</a> |
| <a name="27" href="#27">27</a> <strong class="jxr_keyword">import</strong> javax.servlet.ServletException; |
| <a name="28" href="#28">28</a> <strong class="jxr_keyword">import</strong> javax.servlet.ServletRequest; |
| <a name="29" href="#29">29</a> <strong class="jxr_keyword">import</strong> javax.servlet.ServletResponse; |
| <a name="30" href="#30">30</a> <strong class="jxr_keyword">import</strong> java.io.IOException; |
| <a name="31" href="#31">31</a> <strong class="jxr_keyword">import</strong> java.util.Arrays; |
| <a name="32" href="#32">32</a> |
| <a name="33" href="#33">33</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="34" href="#34">34</a> <em class="jxr_javadoccomment"> * An <code>AuthenticationFilter</code> that is capable of automatically performing an authentication attempt</em> |
| <a name="35" href="#35">35</a> <em class="jxr_javadoccomment"> * based on the incoming request.</em> |
| <a name="36" href="#36">36</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="37" href="#37">37</a> <em class="jxr_javadoccomment"> * @since 0.9</em> |
| <a name="38" href="#38">38</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="39" href="#39">39</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">abstract</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../../org/apache/shiro/web/filter/authc/AuthenticatingFilter.html">AuthenticatingFilter</a> <strong class="jxr_keyword">extends</strong> <a href="../../../../../../org/apache/shiro/web/filter/authc/AuthenticationFilter.html">AuthenticationFilter</a> { |
| <a name="40" href="#40">40</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> String PERMISSIVE = <span class="jxr_string">"permissive"</span>; |
| <a name="41" href="#41">41</a> |
| <a name="42" href="#42">42</a> <em class="jxr_comment">//TODO - complete JavaDoc</em> |
| <a name="43" href="#43">43</a> |
| <a name="44" href="#44">44</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">boolean</strong> executeLogin(ServletRequest request, ServletResponse response) <strong class="jxr_keyword">throws</strong> Exception { |
| <a name="45" href="#45">45</a> <a href="../../../../../../org/apache/shiro/authc/AuthenticationToken.html">AuthenticationToken</a> token = createToken(request, response); |
| <a name="46" href="#46">46</a> <strong class="jxr_keyword">if</strong> (token == <strong class="jxr_keyword">null</strong>) { |
| <a name="47" href="#47">47</a> String msg = <span class="jxr_string">"createToken method implementation returned null. A valid non-null AuthenticationToken "</span> + |
| <a name="48" href="#48">48</a> <span class="jxr_string">"must be created in order to execute a login attempt."</span>; |
| <a name="49" href="#49">49</a> <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IllegalStateException(msg); |
| <a name="50" href="#50">50</a> } |
| <a name="51" href="#51">51</a> <strong class="jxr_keyword">try</strong> { |
| <a name="52" href="#52">52</a> <a href="../../../../../../org/apache/shiro/subject/Subject.html">Subject</a> subject = getSubject(request, response); |
| <a name="53" href="#53">53</a> subject.login(token); |
| <a name="54" href="#54">54</a> <strong class="jxr_keyword">return</strong> onLoginSuccess(token, subject, request, response); |
| <a name="55" href="#55">55</a> } <strong class="jxr_keyword">catch</strong> (AuthenticationException e) { |
| <a name="56" href="#56">56</a> <strong class="jxr_keyword">return</strong> onLoginFailure(token, e, request, response); |
| <a name="57" href="#57">57</a> } |
| <a name="58" href="#58">58</a> } |
| <a name="59" href="#59">59</a> |
| <a name="60" href="#60">60</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">abstract</strong> <a href="../../../../../../org/apache/shiro/authc/AuthenticationToken.html">AuthenticationToken</a> createToken(ServletRequest request, ServletResponse response) <strong class="jxr_keyword">throws</strong> Exception; |
| <a name="61" href="#61">61</a> |
| <a name="62" href="#62">62</a> <strong class="jxr_keyword">protected</strong> <a href="../../../../../../org/apache/shiro/authc/AuthenticationToken.html">AuthenticationToken</a> createToken(String username, String password, |
| <a name="63" href="#63">63</a> ServletRequest request, ServletResponse response) { |
| <a name="64" href="#64">64</a> <strong class="jxr_keyword">boolean</strong> rememberMe = isRememberMe(request); |
| <a name="65" href="#65">65</a> String host = getHost(request); |
| <a name="66" href="#66">66</a> <strong class="jxr_keyword">return</strong> createToken(username, password, rememberMe, host); |
| <a name="67" href="#67">67</a> } |
| <a name="68" href="#68">68</a> |
| <a name="69" href="#69">69</a> <strong class="jxr_keyword">protected</strong> <a href="../../../../../../org/apache/shiro/authc/AuthenticationToken.html">AuthenticationToken</a> createToken(String username, String password, |
| <a name="70" href="#70">70</a> <strong class="jxr_keyword">boolean</strong> rememberMe, String host) { |
| <a name="71" href="#71">71</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/shiro/authc/UsernamePasswordToken.html">UsernamePasswordToken</a>(username, password, rememberMe, host); |
| <a name="72" href="#72">72</a> } |
| <a name="73" href="#73">73</a> |
| <a name="74" href="#74">74</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">boolean</strong> onLoginSuccess(<a href="../../../../../../org/apache/shiro/authc/AuthenticationToken.html">AuthenticationToken</a> token, <a href="../../../../../../org/apache/shiro/subject/Subject.html">Subject</a> subject, |
| <a name="75" href="#75">75</a> ServletRequest request, ServletResponse response) <strong class="jxr_keyword">throws</strong> Exception { |
| <a name="76" href="#76">76</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>; |
| <a name="77" href="#77">77</a> } |
| <a name="78" href="#78">78</a> |
| <a name="79" href="#79">79</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">boolean</strong> onLoginFailure(<a href="../../../../../../org/apache/shiro/authc/AuthenticationToken.html">AuthenticationToken</a> token, <a href="../../../../../../org/apache/shiro/authc/AuthenticationException.html">AuthenticationException</a> e, |
| <a name="80" href="#80">80</a> ServletRequest request, ServletResponse response) { |
| <a name="81" href="#81">81</a> <strong class="jxr_keyword">return</strong> false; |
| <a name="82" href="#82">82</a> } |
| <a name="83" href="#83">83</a> |
| <a name="84" href="#84">84</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="85" href="#85">85</a> <em class="jxr_javadoccomment"> * Returns the host name or IP associated with the current subject. This method is primarily provided for use</em> |
| <a name="86" href="#86">86</a> <em class="jxr_javadoccomment"> * during construction of an <code>AuthenticationToken</code>.</em> |
| <a name="87" href="#87">87</a> <em class="jxr_javadoccomment"> * <p/></em> |
| <a name="88" href="#88">88</a> <em class="jxr_javadoccomment"> * The default implementation merely returns {@link ServletRequest#getRemoteHost()}.</em> |
| <a name="89" href="#89">89</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="90" href="#90">90</a> <em class="jxr_javadoccomment"> * @param request the incoming ServletRequest</em> |
| <a name="91" href="#91">91</a> <em class="jxr_javadoccomment"> * @return the <code>InetAddress</code> to associate with the login attempt.</em> |
| <a name="92" href="#92">92</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="93" href="#93">93</a> <strong class="jxr_keyword">protected</strong> String getHost(ServletRequest request) { |
| <a name="94" href="#94">94</a> <strong class="jxr_keyword">return</strong> request.getRemoteHost(); |
| <a name="95" href="#95">95</a> } |
| <a name="96" href="#96">96</a> |
| <a name="97" href="#97">97</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="98" href="#98">98</a> <em class="jxr_javadoccomment"> * Returns <code>true</code> if &quot;rememberMe&quot; should be enabled for the login attempt associated with the</em> |
| <a name="99" href="#99">99</a> <em class="jxr_javadoccomment"> * current <code>request</code>, <code>false</code> otherwise.</em> |
| <a name="100" href="#100">100</a> <em class="jxr_javadoccomment"> * <p/></em> |
| <a name="101" href="#101">101</a> <em class="jxr_javadoccomment"> * This implementation always returns <code>false</code> and is provided as a template hook to subclasses that</em> |
| <a name="102" href="#102">102</a> <em class="jxr_javadoccomment"> * support <code>rememberMe</code> logins and wish to determine <code>rememberMe</code> in a custom mannner</em> |
| <a name="103" href="#103">103</a> <em class="jxr_javadoccomment"> * based on the current <code>request</code>.</em> |
| <a name="104" href="#104">104</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="105" href="#105">105</a> <em class="jxr_javadoccomment"> * @param request the incoming ServletRequest</em> |
| <a name="106" href="#106">106</a> <em class="jxr_javadoccomment"> * @return <code>true</code> if &quot;rememberMe&quot; should be enabled for the login attempt associated with the</em> |
| <a name="107" href="#107">107</a> <em class="jxr_javadoccomment"> * current <code>request</code>, <code>false</code> otherwise.</em> |
| <a name="108" href="#108">108</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="109" href="#109">109</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">boolean</strong> isRememberMe(ServletRequest request) { |
| <a name="110" href="#110">110</a> <strong class="jxr_keyword">return</strong> false; |
| <a name="111" href="#111">111</a> } |
| <a name="112" href="#112">112</a> |
| <a name="113" href="#113">113</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="114" href="#114">114</a> <em class="jxr_javadoccomment"> * Determines whether the current subject should be allowed to make the current request.</em> |
| <a name="115" href="#115">115</a> <em class="jxr_javadoccomment"> * <p/></em> |
| <a name="116" href="#116">116</a> <em class="jxr_javadoccomment"> * The default implementation returns <code>true</code> if the user is authenticated. Will also return</em> |
| <a name="117" href="#117">117</a> <em class="jxr_javadoccomment"> * <code>true</code> if the {@link #isLoginRequest} returns false and the &quot;permissive&quot; flag is set.</em> |
| <a name="118" href="#118">118</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="119" href="#119">119</a> <em class="jxr_javadoccomment"> * @return <code>true</code> if request should be allowed access</em> |
| <a name="120" href="#120">120</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="121" href="#121">121</a> @Override |
| <a name="122" href="#122">122</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">boolean</strong> isAccessAllowed(ServletRequest request, ServletResponse response, Object mappedValue) { |
| <a name="123" href="#123">123</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">super</strong>.isAccessAllowed(request, response, mappedValue) || |
| <a name="124" href="#124">124</a> (!isLoginRequest(request, response) && isPermissive(mappedValue)); |
| <a name="125" href="#125">125</a> } |
| <a name="126" href="#126">126</a> |
| <a name="127" href="#127">127</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="128" href="#128">128</a> <em class="jxr_javadoccomment"> * Returns <code>true</code> if the mappedValue contains the {@link #PERMISSIVE} qualifier.</em> |
| <a name="129" href="#129">129</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="130" href="#130">130</a> <em class="jxr_javadoccomment"> * @return <code>true</code> if this filter should be permissive</em> |
| <a name="131" href="#131">131</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="132" href="#132">132</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">boolean</strong> isPermissive(Object mappedValue) { |
| <a name="133" href="#133">133</a> <strong class="jxr_keyword">if</strong>(mappedValue != <strong class="jxr_keyword">null</strong>) { |
| <a name="134" href="#134">134</a> String[] values = (String[]) mappedValue; |
| <a name="135" href="#135">135</a> <strong class="jxr_keyword">return</strong> Arrays.binarySearch(values, PERMISSIVE) >= 0; |
| <a name="136" href="#136">136</a> } |
| <a name="137" href="#137">137</a> <strong class="jxr_keyword">return</strong> false; |
| <a name="138" href="#138">138</a> } |
| <a name="139" href="#139">139</a> |
| <a name="140" href="#140">140</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="141" href="#141">141</a> <em class="jxr_javadoccomment"> * Overrides the default behavior to call {@link #onAccessDenied} and swallow the exception if the exception is</em> |
| <a name="142" href="#142">142</a> <em class="jxr_javadoccomment"> * {@link UnauthenticatedException}.</em> |
| <a name="143" href="#143">143</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="144" href="#144">144</a> @Override |
| <a name="145" href="#145">145</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> cleanup(ServletRequest request, ServletResponse response, Exception existing) <strong class="jxr_keyword">throws</strong> ServletException, IOException { |
| <a name="146" href="#146">146</a> <strong class="jxr_keyword">if</strong> (existing instanceof UnauthenticatedException || (existing instanceof ServletException && existing.getCause() instanceof UnauthenticatedException)) |
| <a name="147" href="#147">147</a> { |
| <a name="148" href="#148">148</a> <strong class="jxr_keyword">try</strong> { |
| <a name="149" href="#149">149</a> onAccessDenied(request, response); |
| <a name="150" href="#150">150</a> existing = <strong class="jxr_keyword">null</strong>; |
| <a name="151" href="#151">151</a> } <strong class="jxr_keyword">catch</strong> (Exception e) { |
| <a name="152" href="#152">152</a> existing = e; |
| <a name="153" href="#153">153</a> } |
| <a name="154" href="#154">154</a> } |
| <a name="155" href="#155">155</a> <strong class="jxr_keyword">super</strong>.cleanup(request, response, existing); |
| <a name="156" href="#156">156</a> |
| <a name="157" href="#157">157</a> } |
| <a name="158" href="#158">158</a> } |
| </pre> |
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