sslhandler.html

MINA+API 关于MINA的API

<a name="127" href="#127">127</a>         }
<a name="128" href="#128">128</a> 
<a name="129" href="#129">129</a>         <strong class="jxr_keyword">if</strong> (parent.getEnabledCipherSuites() != <strong class="jxr_keyword">null</strong>) {
<a name="130" href="#130">130</a>             sslEngine.setEnabledCipherSuites(parent.getEnabledCipherSuites());
<a name="131" href="#131">131</a>         }
<a name="132" href="#132">132</a> 
<a name="133" href="#133">133</a>         <strong class="jxr_keyword">if</strong> (parent.getEnabledProtocols() != <strong class="jxr_keyword">null</strong>) {
<a name="134" href="#134">134</a>             sslEngine.setEnabledProtocols(parent.getEnabledProtocols());
<a name="135" href="#135">135</a>         }
<a name="136" href="#136">136</a> 
<a name="137" href="#137">137</a>         sslEngine.beginHandshake();
<a name="138" href="#138">138</a>         handshakeStatus = sslEngine.getHandshakeStatus();
<a name="139" href="#139">139</a>         
<a name="140" href="#140">140</a>         handshakeComplete = false;
<a name="141" href="#141">141</a>         initialHandshakeComplete = false;
<a name="142" href="#142">142</a>         writingEncryptedData = false;
<a name="143" href="#143">143</a>     }
<a name="144" href="#144">144</a> 
<a name="145" href="#145">145</a>     <em class="jxr_javadoccomment">/**</em>
<a name="146" href="#146">146</a> <em class="jxr_javadoccomment">     * Release allocated buffers.</em>
<a name="147" href="#147">147</a> <em class="jxr_javadoccomment">     */</em>
<a name="148" href="#148">148</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> destroy() {
<a name="149" href="#149">149</a>         <strong class="jxr_keyword">if</strong> (sslEngine == <strong class="jxr_keyword">null</strong>) {
<a name="150" href="#150">150</a>             <strong class="jxr_keyword">return</strong>;
<a name="151" href="#151">151</a>         }
<a name="152" href="#152">152</a> 
<a name="153" href="#153">153</a>         <em class="jxr_comment">// Close inbound and flush all remaining data if available.</em>
<a name="154" href="#154">154</a>         <strong class="jxr_keyword">try</strong> {
<a name="155" href="#155">155</a>             sslEngine.closeInbound();
<a name="156" href="#156">156</a>         } <strong class="jxr_keyword">catch</strong> (SSLException e) {
<a name="157" href="#157">157</a>             logger.debug(
<a name="158" href="#158">158</a>                     <span class="jxr_string">"Unexpected exception from SSLEngine.closeInbound()."</span>, e);
<a name="159" href="#159">159</a>         }
<a name="160" href="#160">160</a> 
<a name="161" href="#161">161</a>         
<a name="162" href="#162">162</a>         <strong class="jxr_keyword">if</strong> (outNetBuffer != <strong class="jxr_keyword">null</strong>) {
<a name="163" href="#163">163</a>             outNetBuffer.capacity(sslEngine.getSession().getPacketBufferSize());
<a name="164" href="#164">164</a>         } <strong class="jxr_keyword">else</strong> {
<a name="165" href="#165">165</a>             createOutNetBuffer(0);
<a name="166" href="#166">166</a>         }
<a name="167" href="#167">167</a>         <strong class="jxr_keyword">try</strong> {
<a name="168" href="#168">168</a>             <strong class="jxr_keyword">do</strong> {
<a name="169" href="#169">169</a>                 outNetBuffer.clear();
<a name="170" href="#170">170</a>             } <strong class="jxr_keyword">while</strong> (sslEngine.wrap(emptyBuffer.buf(), outNetBuffer.buf()).bytesProduced() &gt; 0);
<a name="171" href="#171">171</a>         } <strong class="jxr_keyword">catch</strong> (SSLException e) {
<a name="172" href="#172">172</a>             <em class="jxr_comment">// Ignore.</em>
<a name="173" href="#173">173</a>         } <strong class="jxr_keyword">finally</strong> {
<a name="174" href="#174">174</a>             destroyOutNetBuffer();
<a name="175" href="#175">175</a>         }
<a name="176" href="#176">176</a> 
<a name="177" href="#177">177</a>         sslEngine.closeOutbound();
<a name="178" href="#178">178</a>         sslEngine = <strong class="jxr_keyword">null</strong>;
<a name="179" href="#179">179</a> 
<a name="180" href="#180">180</a>         preHandshakeEventQueue.clear();
<a name="181" href="#181">181</a>     }
<a name="182" href="#182">182</a> 
<a name="183" href="#183">183</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> destroyOutNetBuffer() {
<a name="184" href="#184">184</a>         outNetBuffer.free();
<a name="185" href="#185">185</a>         outNetBuffer = <strong class="jxr_keyword">null</strong>;
<a name="186" href="#186">186</a>     }
<a name="187" href="#187">187</a> 
<a name="188" href="#188">188</a>     <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/mina/filter/ssl/SslFilter.html">SslFilter</a> getParent() {
<a name="189" href="#189">189</a>         <strong class="jxr_keyword">return</strong> parent;
<a name="190" href="#190">190</a>     }
<a name="191" href="#191">191</a> 
<a name="192" href="#192">192</a>     <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/mina/common/IoSession.html">IoSession</a> getSession() {
<a name="193" href="#193">193</a>         <strong class="jxr_keyword">return</strong> session;
<a name="194" href="#194">194</a>     }
<a name="195" href="#195">195</a> 
<a name="196" href="#196">196</a>     <em class="jxr_javadoccomment">/**</em>
<a name="197" href="#197">197</a> <em class="jxr_javadoccomment">     * Check we are writing encrypted data.</em>
<a name="198" href="#198">198</a> <em class="jxr_javadoccomment">     */</em>
<a name="199" href="#199">199</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> isWritingEncryptedData() {
<a name="200" href="#200">200</a>         <strong class="jxr_keyword">return</strong> writingEncryptedData;
<a name="201" href="#201">201</a>     }
<a name="202" href="#202">202</a> 
<a name="203" href="#203">203</a>     <em class="jxr_javadoccomment">/**</em>
<a name="204" href="#204">204</a> <em class="jxr_javadoccomment">     * Check if handshake is completed.</em>
<a name="205" href="#205">205</a> <em class="jxr_javadoccomment">     */</em>
<a name="206" href="#206">206</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> isHandshakeComplete() {
<a name="207" href="#207">207</a>         <strong class="jxr_keyword">return</strong> handshakeComplete;
<a name="208" href="#208">208</a>     }
<a name="209" href="#209">209</a> 
<a name="210" href="#210">210</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> isInboundDone() {
<a name="211" href="#211">211</a>         <strong class="jxr_keyword">return</strong> sslEngine == <strong class="jxr_keyword">null</strong> || sslEngine.isInboundDone();
<a name="212" href="#212">212</a>     }
<a name="213" href="#213">213</a> 
<a name="214" href="#214">214</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> isOutboundDone() {
<a name="215" href="#215">215</a>         <strong class="jxr_keyword">return</strong> sslEngine == <strong class="jxr_keyword">null</strong> || sslEngine.isOutboundDone();
<a name="216" href="#216">216</a>     }
<a name="217" href="#217">217</a> 
<a name="218" href="#218">218</a>     <em class="jxr_javadoccomment">/**</em>
<a name="219" href="#219">219</a> <em class="jxr_javadoccomment">     * Check if there is any need to complete handshake.</em>
<a name="220" href="#220">220</a> <em class="jxr_javadoccomment">     */</em>
<a name="221" href="#221">221</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> needToCompleteHandshake() {
<a name="222" href="#222">222</a>         <strong class="jxr_keyword">return</strong> handshakeStatus == SSLEngineResult.HandshakeStatus.NEED_WRAP &amp;&amp; !isInboundDone();
<a name="223" href="#223">223</a>     }
<a name="224" href="#224">224</a> 
<a name="225" href="#225">225</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> schedulePreHandshakeWriteRequest(<a href="../../../../../org/apache/mina/common/IoFilter.html">NextFilter</a> nextFilter,
<a name="226" href="#226">226</a>                                                  <a href="../../../../../org/apache/mina/common/WriteRequest.html">WriteRequest</a> writeRequest) {
<a name="227" href="#227">227</a>         preHandshakeEventQueue.add(<strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/mina/common/IoFilterEvent.html">IoFilterEvent</a>(nextFilter,
<a name="228" href="#228">228</a>                 IoEventType.WRITE, session, writeRequest));
<a name="229" href="#229">229</a>     }
<a name="230" href="#230">230</a> 
<a name="231" href="#231">231</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> flushPreHandshakeEvents() <strong class="jxr_keyword">throws</strong> SSLException {
<a name="232" href="#232">232</a>         <a href="../../../../../org/apache/mina/common/IoFilterEvent.html">IoFilterEvent</a> scheduledWrite;
<a name="233" href="#233">233</a> 
<a name="234" href="#234">234</a>         <strong class="jxr_keyword">while</strong> ((scheduledWrite = preHandshakeEventQueue.poll()) != <strong class="jxr_keyword">null</strong>) {
<a name="235" href="#235">235</a>             parent.filterWrite(scheduledWrite.getNextFilter(), session,
<a name="236" href="#236">236</a>                     (<a href="../../../../../org/apache/mina/common/WriteRequest.html">WriteRequest</a>) scheduledWrite.getParameter());
<a name="237" href="#237">237</a>         }
<a name="238" href="#238">238</a>     }
<a name="239" href="#239">239</a> 
<a name="240" href="#240">240</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> scheduleFilterWrite(<a href="../../../../../org/apache/mina/common/IoFilter.html">NextFilter</a> nextFilter, <a href="../../../../../org/apache/mina/common/WriteRequest.html">WriteRequest</a> writeRequest) {
<a name="241" href="#241">241</a>         filterWriteEventQueue.add(<strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/mina/common/IoFilterEvent.html">IoFilterEvent</a>(nextFilter, IoEventType.WRITE, session, writeRequest));
<a name="242" href="#242">242</a>     }
<a name="243" href="#243">243</a> 
<a name="244" href="#244">244</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> scheduleMessageReceived(<a href="../../../../../org/apache/mina/common/IoFilter.html">NextFilter</a> nextFilter, Object message) {
<a name="245" href="#245">245</a>         messageReceivedEventQueue.add(<strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/mina/common/IoFilterEvent.html">IoFilterEvent</a>(nextFilter, IoEventType.MESSAGE_RECEIVED, session, message));
<a name="246" href="#246">246</a>     }
<a name="247" href="#247">247</a> 
<a name="248" href="#248">248</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> flushScheduledEvents() {
<a name="249" href="#249">249</a>         <em class="jxr_comment">// Fire events only when no lock is hold for this handler.</em>
<a name="250" href="#250">250</a>         <strong class="jxr_keyword">if</strong> (Thread.holdsLock(<strong class="jxr_keyword">this</strong>)) {
<a name="251" href="#251">251</a>             <strong class="jxr_keyword">return</strong>;
<a name="252" href="#252">252</a>         }
<a name="253" href="#253">253</a> 
<a name="254" href="#254">254</a>         <a href="../../../../../org/apache/mina/common/IoFilterEvent.html">IoFilterEvent</a> e;
<a name="255" href="#255">255</a> 
<a name="256" href="#256">256</a>         <em class="jxr_comment">// We need synchronization here inevitably because filterWrite can be</em>
<a name="257" href="#257">257</a>         <em class="jxr_comment">// called simultaneously and cause 'bad record MAC' integrity error.</em>
<a name="258" href="#258">258</a>         <strong class="jxr_keyword">synchronized</strong> (<strong class="jxr_keyword">this</strong>) {
<a name="259" href="#259">259</a>             <strong class="jxr_keyword">while</strong> ((e = filterWriteEventQueue.poll()) != <strong class="jxr_keyword">null</strong>) {
<a name="260" href="#260">260</a>                 e.getNextFilter().filterWrite(session, (WriteRequest) e.getParameter());
<a name="261" href="#261">261</a>             }
<a name="262" href="#262">262</a>         }