single signon using cURL for php web applications

[coolatt]

Hi All,

I have some some web applications (Roundcube Webmail, phpBB forum & Wiki) which i want to integrate into a CMS like Drupal or Joomla.

All the web applications run on the same server and authenticate using LDAP.
For username coolatt & password 'secret' is used to access all the 3 web applications.

I got many complicated solutions like openSSO , Jasig CAS.
I want to implement a quick solution so that once users log into Joomla or Drupal they are automatically logged into the 3 web applications.

Can someone help how i can achieve this using cURL ??

thanks
coolatt