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<a href="https://community.jboss.org/index.jspa" style="text-decoration: none; color: #E1E1E1">JBoss Community</a></h1>
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JBoss AS 7.1.1.Final custom login module for remoting and custom principal
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created by <a href="https://community.jboss.org/people/sraue">Sebastian Raue</a> in <i>JBoss AS 7 Development</i> - <a href="https://community.jboss.org/message/726343#726343">View the full discussion</a>
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<div class="jive-rendered-content"><p>For remoting we have made a custom login module which extends org.jboss.security.auth.spi.AbstractServerLoginModule.</p><p>The overwritten method getIdenttity() returns a custom principal - ApplicationPrincipal. </p><p>We can access the principal inside our ejbs via</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>@Resource</p><p>public SessionContext sessionContext;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>....</p><p>Principal principal = sessionContext.getCallerPrincipal();</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>....</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>but we get a ClassCastException when we try to cast the returned Principal into ApplicationPrincipal.</p><p>On the other hand principal.getClass().getName() returns the expected class name.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>The problem is that our login module is deployed as a jboss module (<jboss-home>/modules) - inside a jar which also</p><p> contains ApplicationPrincipal. The ear containing our ejb.jar which contains our ejbs also contains a copy of ApplicationPrincipal.</p><p>The problem is that our custom login module and the ApplicationPrincipal are loaded by one class loader and our</p><p>ejbs and the ApplicationPrincipal copy are loaded by another class loader. The ApplicationPrincipal from the login module which we get</p><p>by calling sessionContext.getCallerPrincipal() in the ejb is no ApplicationPrincipal known by the ejbs.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>What can we do to solve this problem?</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I have tried to put the custom login module code into our ear and adjusted the "module" attribute value of <login-module></p><p>in our standalone.xml to deployment.<app-name>.ear.<ejb-jar-name>.jar but it did not work. Exception on the remote client was:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>javax.security.sasl.SaslException: Authentication failed: all available authentication mechanisms failed</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>As a separate module and the respective <login-module> configuration in standalone.xml the authentication works fine with our login module</p><p>- we only have the described ClassCastException problem.</p></div>
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