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POHow can I check Spring Security for user authentication and get roles from Flex?
 

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  1. POHow can I check Spring Security for user authentication and get roles from Flex?
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    <p>I'm using Spring, Spring Security, BlazeDS, Flex and spring-flex. </p> <p>I know that I can call <code>channelSet.login()</code> and <code>channelSet.logout()</code> to hook into Spring Security for authentication. <code>channelSet.authenticated</code> apparently only knows about the current Flex session, as it always starts off as <em>false</em>, until you call <code>channelSet.login()</code>.</p> <p>What I want to do:</p> <ol> <li> Check from Flex to know if a user is already in a session.</li> <li> If so, I want their username and roles.</li> </ol> <p><strong>UPDATE</strong><br> I just thought I'd add details of the solution I used from <a href="https://stackoverflow.com/users/41754/brd6644">brd6644</a>'s answer below, so that this might be easier for someone else who looks this up. I used <a href="https://stackoverflow.com/questions/248562/when-using-spring-security-what-is-the-proper-way-to-obtain-current-username-i">this</a> StackOverflow answer to make the <code>SecurityContext</code> injectable. I won't be rewriting the code from that answer in this one, so go look at it for the <code>SecurityContextFacade</code>.</p> <p><em>securityServiceImpl.java</em></p> <pre><code>public class SecurityServiceImpl implements SecurityService { private SecurityContextFacade securityContextFacade; @Secured({"ROLE_PEON"}) public Map&lt;String, Object&gt; getUserDetails() { Map&lt;String,Object&gt; userSessionDetails = new HashMap&lt;String, Object&gt;(); SecurityContext context = securityContextFacade.getContext(); Authentication auth = context.getAuthentication(); UserDetails userDetails = (UserDetails) auth.getPrincipal(); ArrayList roles = new ArrayList(); GrantedAuthority[] grantedRoles = userDetails.getAuthorities(); for (int i = 0; i &lt; grantedRoles.length; i++) { roles.add(grantedRoles[i].getAuthority()); } userSessionDetails.put("username", userDetails.getUsername()); userSessionDetails.put("roles", roles); return userSessionDetails; } } </code></pre> <p><br/> <em>securityContext.xml</em></p> <pre><code>&lt;security:http auto-config="true"&gt; &lt;!-- Don't authenticate Flex app --&gt; &lt;security:intercept-url pattern="/flexAppDir/**" access="IS_AUTHENTICATED_ANONYMOUSLY" /&gt; &lt;!-- Don't authenticate remote calls --&gt; &lt;security:intercept-url pattern="/messagebroker/amfsecure" access="IS_AUTHENTICATED_ANONYMOUSLY" /&gt; &lt;/security:http&gt; &lt;security:global-method-security secured-annotations="enabled" /&gt; &lt;bean id="securityService" class="ext.domain.project.service.SecurityServiceImpl"&gt; &lt;property name="securityContextFacade" ref="securityContextFacade" /&gt; &lt;/bean&gt; &lt;bean id="securityContextFacade" class="ext.domain.spring.security.SecurityContextHolderFacade" /&gt; </code></pre> <p><br/> <em>flexContext.xml</em></p> <pre><code>&lt;flex:message-broker&gt; &lt;flex:secured /&gt; &lt;/flex:message-broker&gt; &lt;flex:remoting-destination ref="securityService" /&gt; &lt;security:http auto-config="true" session-fixation-protection="none"/&gt; </code></pre> <p><br/> <em>FlexSecurityTest.mxml</em></p> <pre><code>&lt;mx:Application ... creationComplete="init()"&gt; &lt;mx:Script&gt;&lt;![CDATA[ [Bindable] private var userDetails:UserDetails; // custom VO to hold user details private function init():void { security.getUserDetails(); } private function showFault(e:FaultEvent):void { if (e.fault.faultCode == "Client.Authorization") { Alert.show("You need to log in."); // show the login form } else { // submit a ticket } } private function showResult(e:ResultEvent):void { userDetails = new UserDetails(); userDetails.username = e.result.username; userDetails.roles = e.result.roles; // show user the application } ]]&gt;&lt;/mx:Script&gt; &lt;mx:RemoteObject id="security" destination="securityService"&gt; &lt;mx:method name="getUserDetails" fault="showFault(event)" result="showResult(event)" /&gt; &lt;/mx:RemoteObject&gt; ... &lt;/mx:Application&gt; </code></pre>
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