Moodle/Drupal single sign on using OAuth or ldap

I want to create a way for Moodle users to automati开发者_如何学编程cally login to a Drupal site using OAuth or ldap.

How can this be done..

Is there any well written modules or api around there?

Any help will be thankful and grateful?

Thanks in advance...

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Have you already had a look to this integration mechanism?

http://drupal.org/project/moodle

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You can configure your Drupal site with Moodle using any of the 2 protocols (OAuth or LDAP). If you are looking for some plugins or module to do so, you can check out the Drupal OAuth Login module for OAuth and also the Drupal LDAP module (if you are looking for LDAP)