So I'm trying to add Facebook authentication to a moodle 2.5 installation, and adding the button requires changing the login page. The standard theme however doesn't seem to have a dedicated file for the login page. How would I go about in order to add the code?
Editing the login page
The login page using layout/general.php in most theme. But if you are wanting to change Standard theme then you can make a copy of base/layout/general.php and add it to standard theme by first creating a layout directory and add the general.php file there, and rename it to login.php
So you should end up with...
The next step is to ADD the following to theme/standard/config.php
$THEME->layouts = array(
'login' => array(
'file' => 'login.php',
'regions' => array(),
'options' => array('langmenu'=>true),
Next step is ADD the authentication code to your new login.php
Hope this helps?
In the process of looking at this issue, it seems there's a feature in Moodle that will let you redirect people to any URL for login. I don't know anything about it, and documentation seems to be lacking but it seems like it might be relevant to your needs.