title: SocialAuth - Facebook Authentication - Specify which access rights are requested
body: <p>I want to realize a simple login via facebook on my website. I used SocialAuth for that and it is working pretty fine. But if i login via facebook, the facebook app needs the confirmation for a lot of access rights like, posting to the wall and so on. </p>
  
  <p>I don't need this rights. Can i somehow define, which rights are requested (basically i need none - just the login). This is my code:</p>
  
  <pre><code>//Create an instance of SocialAuthConfgi object
     SocialAuthConfig config = SocialAuthConfig.getDefault();
  
    //load configuration. By default load the configuration from oauth_consumer.properties. 
    //You can also pass input stream, properties object or properties file name.
     config.load();
  
    //Create an instance of SocialAuthManager and set config
    SocialAuthManager manager = new SocialAuthManager();
    manager.setSocialAuthConfig(config);
  
    //URL of YOUR application which will be called after authentication
    String successUrl = "http://opensource.brickred.com/socialauthdemo/socialAuthSuccessAction.do";
  
    // get Provider URL to which you should redirect for authentication.
    // id can have values "facebook", "twitter", "yahoo" etc. or the OpenID URL
    String url = manager.getAuthenticationUrl(id, successUrl);
  
    // Store in session
    session.setAttribute("authManager", manager);
  </code></pre>
  
  <p>My config looks something like this. Can i define this here in some way?</p>
  
  <pre><code>#facebook
  graph.facebook.com.consumer_key =   152190004803645
  graph.facebook.com.consumer_secret = 64c94bd02180b0ade85889b44b2ba7c4
  graph.facebook.com.secure = true
  graph.facebook.com.request_token_url = /oauth/access_token
  graph.facebook.com.authorization_url = /oauth/authorize
  graph.facebook.com.access_token_url = /me
  graph.facebook.com.signature_method = HMAC-SHA1
  graph.facebook.com.transport_name = GET
  </code></pre>