Step-by-Step Guide to Integrate LinkedIn Connect with the eXo Platform Sign-In Mechanism

				
					package org.exoplatform.community.service.sso;
public class ORGLoginModule extends AbstractLoginModule {

	public boolean login() throws LoginException {  
    
    try {  
			HttpServletRequest request = getCurrentHttpServletRequest();    
			ExoContainer container = getContainer();  
			HttpSession session = request.getSession(true);  
			String username = null;  
			String password = null;   
			if(session != null) {    
				if(session.getAttribute("oauth_username") != null) {  
					 username = (String) session.getAttribute("oauth_username");  
					 session.removeAttribute("oauth_username");  
				}  
				if(session.getAttribute("oauth_password") != null) {  
					 password = (String) session.getAttribute("oauth_password");  
					 session.removeAttribute("oauth_password");  
				}  
      }  
			if(username != null){  
				establishSecurityContext(container, username);   
				if (log.isTraceEnabled()) {   
					log.trace("Successfully established security context for user " + username);  
				}
				return true;  
			}  
			return false;  
 
    }catch (Exception e) {   
		if (log.isTraceEnabled()) {   
			log.trace("Exception in login module", e);  
    }  
    return false;  
}  

	protected void establishSecurityContext(ExoContainer container, String username) throws Exception {
        
		Authenticator authenticator = (Authenticator) container.getComponentInstanceOfType(Authenticator.class);
  	if (authenticator == null) {
			throw new LoginException("No Authenticator component found, check your configuration");
    }
    Identity identity = authenticator.createIdentity(username);
    sharedState.put("exo.security.identity", identity);
    sharedState.put("javax.security.auth.login.name", username);
    UsernameCredential usernameCredential = new UsernameCredential(username);
    subject.getPublicCredentials().add(usernameCredential);
    }
	}