sslfilter.html

MINA+API 关于MINA的API

<a name="360" href="#360">360</a> 
<a name="361" href="#361">361</a>     @Override
<a name="362" href="#362">362</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> onPostAdd(<a href="../../../../../org/apache/mina/common/IoFilterChain.html">IoFilterChain</a> parent, String name,
<a name="363" href="#363">363</a>             <a href="../../../../../org/apache/mina/common/IoFilter.html">NextFilter</a> nextFilter) <strong class="jxr_keyword">throws</strong> SSLException {
<a name="364" href="#364">364</a>         <strong class="jxr_keyword">if</strong> (autoStart) {
<a name="365" href="#365">365</a>             initiateHandshake(nextFilter, parent.getSession());
<a name="366" href="#366">366</a>         }
<a name="367" href="#367">367</a>     }
<a name="368" href="#368">368</a> 
<a name="369" href="#369">369</a>     @Override
<a name="370" href="#370">370</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> onPreRemove(<a href="../../../../../org/apache/mina/common/IoFilterChain.html">IoFilterChain</a> parent, String name,
<a name="371" href="#371">371</a>             <a href="../../../../../org/apache/mina/common/IoFilter.html">NextFilter</a> nextFilter) <strong class="jxr_keyword">throws</strong> SSLException {
<a name="372" href="#372">372</a>         <a href="../../../../../org/apache/mina/common/IoSession.html">IoSession</a> session = parent.getSession();
<a name="373" href="#373">373</a>         stopSsl(session);
<a name="374" href="#374">374</a>         session.removeAttribute(NEXT_FILTER);
<a name="375" href="#375">375</a>         session.removeAttribute(SSL_HANDLER);
<a name="376" href="#376">376</a>     }
<a name="377" href="#377">377</a> 
<a name="378" href="#378">378</a>     <em class="jxr_comment">// IoFilter impl.</em>
<a name="379" href="#379">379</a>     @Override
<a name="380" href="#380">380</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="381" href="#381">381</a>             <strong class="jxr_keyword">throws</strong> SSLException {
<a name="382" href="#382">382</a>         <a href="../../../../../org/apache/mina/filter/ssl/SslHandler.html">SslHandler</a> handler = getSslSessionHandler(session);
<a name="383" href="#383">383</a>         <strong class="jxr_keyword">try</strong> {
<a name="384" href="#384">384</a>             <strong class="jxr_keyword">synchronized</strong> (handler) {
<a name="385" href="#385">385</a>                 <em class="jxr_comment">// release resources</em>
<a name="386" href="#386">386</a>                 handler.destroy();
<a name="387" href="#387">387</a>             }
<a name="388" href="#388">388</a> 
<a name="389" href="#389">389</a>             handler.flushScheduledEvents();
<a name="390" href="#390">390</a>         } <strong class="jxr_keyword">finally</strong> {
<a name="391" href="#391">391</a>             <em class="jxr_comment">// notify closed session</em>
<a name="392" href="#392">392</a>             nextFilter.sessionClosed(session);
<a name="393" href="#393">393</a>         }
<a name="394" href="#394">394</a>     }
<a name="395" href="#395">395</a> 
<a name="396" href="#396">396</a>     @Override
<a name="397" href="#397">397</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="398" href="#398">398</a>             Object message) <strong class="jxr_keyword">throws</strong> SSLException {
<a name="399" href="#399">399</a>         <a href="../../../../../org/apache/mina/filter/ssl/SslHandler.html">SslHandler</a> handler = getSslSessionHandler(session);
<a name="400" href="#400">400</a>         <strong class="jxr_keyword">synchronized</strong> (handler) {
<a name="401" href="#401">401</a>             <strong class="jxr_keyword">if</strong> (!isSslStarted(session) &amp;&amp; handler.isInboundDone()) {
<a name="402" href="#402">402</a>                 handler.scheduleMessageReceived(nextFilter, message);
<a name="403" href="#403">403</a>             } <strong class="jxr_keyword">else</strong> {
<a name="404" href="#404">404</a>                 <a href="../../../../../org/apache/mina/common/IoBuffer.html">IoBuffer</a> buf = (IoBuffer) message;
<a name="405" href="#405">405</a>                 <strong class="jxr_keyword">try</strong> {
<a name="406" href="#406">406</a>                     <em class="jxr_comment">// forward read encrypted data to SSL handler</em>
<a name="407" href="#407">407</a>                     handler.messageReceived(nextFilter, buf.buf());
<a name="408" href="#408">408</a> 
<a name="409" href="#409">409</a>                     <em class="jxr_comment">// Handle data to be forwarded to application or written to net</em>
<a name="410" href="#410">410</a>                     handleSslData(nextFilter, handler);
<a name="411" href="#411">411</a> 
<a name="412" href="#412">412</a>                     <strong class="jxr_keyword">if</strong> (handler.isInboundDone()) {
<a name="413" href="#413">413</a>                         <strong class="jxr_keyword">if</strong> (handler.isOutboundDone()) {
<a name="414" href="#414">414</a>                             handler.destroy();
<a name="415" href="#415">415</a>                         } <strong class="jxr_keyword">else</strong> {
<a name="416" href="#416">416</a>                             initiateClosure(nextFilter, session);
<a name="417" href="#417">417</a>                         }
<a name="418" href="#418">418</a> 
<a name="419" href="#419">419</a>                         <strong class="jxr_keyword">if</strong> (buf.hasRemaining()) {
<a name="420" href="#420">420</a>                             <em class="jxr_comment">// Forward the data received after closure.</em>
<a name="421" href="#421">421</a>                             handler.scheduleMessageReceived(nextFilter, buf);
<a name="422" href="#422">422</a>                         }
<a name="423" href="#423">423</a>                     }
<a name="424" href="#424">424</a>                 } <strong class="jxr_keyword">catch</strong> (SSLException ssle) {
<a name="425" href="#425">425</a>                     <strong class="jxr_keyword">if</strong> (!handler.isHandshakeComplete()) {
<a name="426" href="#426">426</a>                         SSLException newSsle = <strong class="jxr_keyword">new</strong> SSLHandshakeException(
<a name="427" href="#427">427</a>                                 <span class="jxr_string">"SSL handshake failed."</span>);
<a name="428" href="#428">428</a>                         newSsle.initCause(ssle);
<a name="429" href="#429">429</a>                         ssle = newSsle;
<a name="430" href="#430">430</a>                     }
<a name="431" href="#431">431</a> 
<a name="432" href="#432">432</a>                     <strong class="jxr_keyword">throw</strong> ssle;
<a name="433" href="#433">433</a>                 }
<a name="434" href="#434">434</a>             }
<a name="435" href="#435">435</a>         }
<a name="436" href="#436">436</a> 
<a name="437" href="#437">437</a>         handler.flushScheduledEvents();
<a name="438" href="#438">438</a>     }
<a name="439" href="#439">439</a> 
<a name="440" href="#440">440</a>     @Override
<a name="441" href="#441">441</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="442" href="#442">442</a>             <a href="../../../../../org/apache/mina/common/WriteRequest.html">WriteRequest</a> writeRequest) {
<a name="443" href="#443">443</a>         <strong class="jxr_keyword">if</strong> (writeRequest instanceof EncryptedWriteRequest) {
<a name="444" href="#444">444</a>             <a href="../../../../../org/apache/mina/filter/ssl/SslFilter.html">EncryptedWriteRequest</a> wrappedRequest = (EncryptedWriteRequest) writeRequest;
<a name="445" href="#445">445</a>             nextFilter.messageSent(session, wrappedRequest.getParentRequest());
<a name="446" href="#446">446</a>         } <strong class="jxr_keyword">else</strong> {
<a name="447" href="#447">447</a>             <em class="jxr_comment">// ignore extra buffers used for handshaking</em>
<a name="448" href="#448">448</a>         }
<a name="449" href="#449">449</a>     }
<a name="450" href="#450">450</a> 
<a name="451" href="#451">451</a>     @Override
<a name="452" href="#452">452</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> exceptionCaught(<a href="../../../../../org/apache/mina/common/IoFilter.html">NextFilter</a> nextFilter, <a href="../../../../../org/apache/mina/common/IoSession.html">IoSession</a> session,
<a name="453" href="#453">453</a>             Throwable cause) <strong class="jxr_keyword">throws</strong> Exception {
<a name="454" href="#454">454</a> 
<a name="455" href="#455">455</a>         <strong class="jxr_keyword">if</strong> (cause instanceof WriteToClosedSessionException) {
<a name="456" href="#456">456</a>             <em class="jxr_comment">// Filter out SSL close notify, which is likely to fail to flush</em>
<a name="457" href="#457">457</a>             <em class="jxr_comment">// due to disconnection.</em>
<a name="458" href="#458">458</a>             <a href="../../../../../org/apache/mina/common/WriteToClosedSessionException.html">WriteToClosedSessionException</a> e = (WriteToClosedSessionException) cause;
<a name="459" href="#459">459</a>             List&lt;WriteRequest&gt; failedRequests = e.getRequests();
<a name="460" href="#460">460</a>             <strong class="jxr_keyword">boolean</strong> containsCloseNotify = false;
<a name="461" href="#461">461</a>             <strong class="jxr_keyword">for</strong> (WriteRequest r: failedRequests) {
<a name="462" href="#462">462</a>                 <strong class="jxr_keyword">if</strong> (isCloseNotify(r.getMessage())) {
<a name="463" href="#463">463</a>                     containsCloseNotify = <strong class="jxr_keyword">true</strong>;
<a name="464" href="#464">464</a>                     <strong class="jxr_keyword">break</strong>;
<a name="465" href="#465">465</a>                 }
<a name="466" href="#466">466</a>             }
<a name="467" href="#467">467</a>             
<a name="468" href="#468">468</a>             <strong class="jxr_keyword">if</strong> (containsCloseNotify) {
<a name="469" href="#469">469</a>                 <strong class="jxr_keyword">if</strong> (failedRequests.size() == 1) {
<a name="470" href="#470">470</a>                     <em class="jxr_comment">// close notify is the only failed request; bail out.</em>
<a name="471" href="#471">471</a>                     <strong class="jxr_keyword">return</strong>;
<a name="472" href="#472">472</a>                 }
<a name="473" href="#473">473</a>                 
<a name="474" href="#474">474</a>                 List&lt;WriteRequest&gt; newFailedRequests =
<a name="475" href="#475">475</a>                     <strong class="jxr_keyword">new</strong> ArrayList&lt;WriteRequest&gt;(failedRequests.size() - 1);
<a name="476" href="#476">476</a>                 <strong class="jxr_keyword">for</strong> (WriteRequest r: failedRequests) {
<a name="477" href="#477">477</a>                     <strong class="jxr_keyword">if</strong> (!isCloseNotify(r.getMessage())) {
<a name="478" href="#478">478</a>                         newFailedRequests.add(r);
<a name="479" href="#479">479</a>                     }
<a name="480" href="#480">480</a>                 }
<a name="481" href="#481">481</a>                 
<a name="482" href="#482">482</a>                 <strong class="jxr_keyword">if</strong> (newFailedRequests.isEmpty()) {