blacklistfilter.html

MINA+API 关于MINA的API

<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">     * Blocks the specified endpoint.</em>
<a name="99" href="#99">99</a>  <em class="jxr_javadoccomment">     */</em>
<a name="100" href="#100">100</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> block(InetAddress address) {
<a name="101" href="#101">101</a>         block(address, <span class="jxr_string">"address"</span>);
<a name="102" href="#102">102</a>     }
<a name="103" href="#103">103</a> 
<a name="104" href="#104">104</a>     <em class="jxr_javadoccomment">/**</em>
<a name="105" href="#105">105</a> <em class="jxr_javadoccomment">     * Unblocks the specified endpoint.</em>
<a name="106" href="#106">106</a> <em class="jxr_javadoccomment">     */</em>
<a name="107" href="#107">107</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> unblock(InetAddress address) {
<a name="108" href="#108">108</a>         <strong class="jxr_keyword">if</strong> (address == <strong class="jxr_keyword">null</strong>) {
<a name="109" href="#109">109</a>             <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> NullPointerException(<span class="jxr_string">"address"</span>);
<a name="110" href="#110">110</a>         }
<a name="111" href="#111">111</a>         blacklist.remove(address);
<a name="112" href="#112">112</a>     }
<a name="113" href="#113">113</a> 
<a name="114" href="#114">114</a>     @Override
<a name="115" href="#115">115</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> sessionCreated(<a href="../../../../../org/apache/mina/common/IoFilter.html">NextFilter</a> nextFilter, <a href="../../../../../org/apache/mina/common/IoSession.html">IoSession</a> session) {
<a name="116" href="#116">116</a>         <strong class="jxr_keyword">if</strong> (!isBlocked(session)) {
<a name="117" href="#117">117</a>             <em class="jxr_comment">// forward if not blocked</em>
<a name="118" href="#118">118</a>             nextFilter.sessionCreated(session);
<a name="119" href="#119">119</a>         } <strong class="jxr_keyword">else</strong> {
<a name="120" href="#120">120</a>             blockSession(session);
<a name="121" href="#121">121</a>         }
<a name="122" href="#122">122</a>     }
<a name="123" href="#123">123</a> 
<a name="124" href="#124">124</a>     @Override
<a name="125" href="#125">125</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> sessionOpened(<a href="../../../../../org/apache/mina/common/IoFilter.html">NextFilter</a> nextFilter, <a href="../../../../../org/apache/mina/common/IoSession.html">IoSession</a> session)
<a name="126" href="#126">126</a>             <strong class="jxr_keyword">throws</strong> Exception {
<a name="127" href="#127">127</a>         <strong class="jxr_keyword">if</strong> (!isBlocked(session)) {
<a name="128" href="#128">128</a>             <em class="jxr_comment">// forward if not blocked</em>
<a name="129" href="#129">129</a>             nextFilter.sessionOpened(session);
<a name="130" href="#130">130</a>         } <strong class="jxr_keyword">else</strong> {
<a name="131" href="#131">131</a>             blockSession(session);
<a name="132" href="#132">132</a>         }
<a name="133" href="#133">133</a>     }
<a name="134" href="#134">134</a> 
<a name="135" href="#135">135</a>     @Override
<a name="136" href="#136">136</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> sessionClosed(<a href="../../../../../org/apache/mina/common/IoFilter.html">NextFilter</a> nextFilter, <a href="../../../../../org/apache/mina/common/IoSession.html">IoSession</a> session)
<a name="137" href="#137">137</a>             <strong class="jxr_keyword">throws</strong> Exception {
<a name="138" href="#138">138</a>         <strong class="jxr_keyword">if</strong> (!isBlocked(session)) {
<a name="139" href="#139">139</a>             <em class="jxr_comment">// forward if not blocked</em>
<a name="140" href="#140">140</a>             nextFilter.sessionClosed(session);
<a name="141" href="#141">141</a>         } <strong class="jxr_keyword">else</strong> {
<a name="142" href="#142">142</a>             blockSession(session);
<a name="143" href="#143">143</a>         }
<a name="144" href="#144">144</a>     }
<a name="145" href="#145">145</a> 
<a name="146" href="#146">146</a>     @Override
<a name="147" href="#147">147</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> sessionIdle(<a href="../../../../../org/apache/mina/common/IoFilter.html">NextFilter</a> nextFilter, <a href="../../../../../org/apache/mina/common/IoSession.html">IoSession</a> session,
<a name="148" href="#148">148</a>             <a href="../../../../../org/apache/mina/common/IdleStatus.html">IdleStatus</a> status) <strong class="jxr_keyword">throws</strong> Exception {
<a name="149" href="#149">149</a>         <strong class="jxr_keyword">if</strong> (!isBlocked(session)) {
<a name="150" href="#150">150</a>             <em class="jxr_comment">// forward if not blocked</em>
<a name="151" href="#151">151</a>             nextFilter.sessionIdle(session, status);
<a name="152" href="#152">152</a>         } <strong class="jxr_keyword">else</strong> {
<a name="153" href="#153">153</a>             blockSession(session);
<a name="154" href="#154">154</a>         }
<a name="155" href="#155">155</a>     }
<a name="156" href="#156">156</a> 
<a name="157" href="#157">157</a>     @Override
<a name="158" href="#158">158</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> messageReceived(<a href="../../../../../org/apache/mina/common/IoFilter.html">NextFilter</a> nextFilter, <a href="../../../../../org/apache/mina/common/IoSession.html">IoSession</a> session,
<a name="159" href="#159">159</a>             Object message) {
<a name="160" href="#160">160</a>         <strong class="jxr_keyword">if</strong> (!isBlocked(session)) {
<a name="161" href="#161">161</a>             <em class="jxr_comment">// forward if not blocked</em>
<a name="162" href="#162">162</a>             nextFilter.messageReceived(session, message);
<a name="163" href="#163">163</a>         } <strong class="jxr_keyword">else</strong> {
<a name="164" href="#164">164</a>             blockSession(session);
<a name="165" href="#165">165</a>         }
<a name="166" href="#166">166</a>     }
<a name="167" href="#167">167</a> 
<a name="168" href="#168">168</a>     @Override
<a name="169" href="#169">169</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> messageSent(<a href="../../../../../org/apache/mina/common/IoFilter.html">NextFilter</a> nextFilter, <a href="../../../../../org/apache/mina/common/IoSession.html">IoSession</a> session,
<a name="170" href="#170">170</a>             <a href="../../../../../org/apache/mina/common/WriteRequest.html">WriteRequest</a> writeRequest) <strong class="jxr_keyword">throws</strong> Exception {
<a name="171" href="#171">171</a>         <strong class="jxr_keyword">if</strong> (!isBlocked(session)) {
<a name="172" href="#172">172</a>             <em class="jxr_comment">// forward if not blocked</em>
<a name="173" href="#173">173</a>             nextFilter.messageSent(session, writeRequest);
<a name="174" href="#174">174</a>         } <strong class="jxr_keyword">else</strong> {
<a name="175" href="#175">175</a>             blockSession(session);
<a name="176" href="#176">176</a>         }
<a name="177" href="#177">177</a>     }
<a name="178" href="#178">178</a> 
<a name="179" href="#179">179</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> blockSession(<a href="../../../../../org/apache/mina/common/IoSession.html">IoSession</a> session) {
<a name="180" href="#180">180</a>         logger.warn(<span class="jxr_string">"Remote address in the blacklist; closing."</span>);
<a name="181" href="#181">181</a>         session.close();
<a name="182" href="#182">182</a>     }
<a name="183" href="#183">183</a> 
<a name="184" href="#184">184</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> isBlocked(<a href="../../../../../org/apache/mina/common/IoSession.html">IoSession</a> session) {
<a name="185" href="#185">185</a>         SocketAddress remoteAddress = session.getRemoteAddress();
<a name="186" href="#186">186</a>         <strong class="jxr_keyword">if</strong> (remoteAddress instanceof InetSocketAddress) {
<a name="187" href="#187">187</a>             <strong class="jxr_keyword">if</strong> (blacklist.contains(((InetSocketAddress) remoteAddress)
<a name="188" href="#188">188</a>                     .getAddress())) {
<a name="189" href="#189">189</a>                 <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
<a name="190" href="#190">190</a>             }
<a name="191" href="#191">191</a>         }
<a name="192" href="#192">192</a> 
<a name="193" href="#193">193</a>         <strong class="jxr_keyword">return</strong> false;
<a name="194" href="#194">194</a>     }
<a name="195" href="#195">195</a> }
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