Extension:MediaWikiAuth

The MediaWikiAuth extension transparently logs a user in to a remote wiki, importing the user's account and preferences to the local wiki.

What can this extension do?
This extension uses the MediaWiki API and AuthPlugin framework to direct login requests with no local account to a remote wiki. The account and its preferences are imported, so the remote login only has be done once. If possible, the same internal user ID is preserved (to ensure this is possible, you have to alter your database so that new accounts on the new site get user_id's higher than the highest one on the old site).

This extension is useful for moving a community from another wiki when you do not have access to the user account database. From a user perspective, it's like they already had an account on the local wiki.

Usage
Install MediaWikiAuth as specified below, set  and   for the remote wiki, and login using an account on the remote wiki which is not currently present on the local wiki.

Installation

 * 1) Download the files into
 * 2) Apply the patch against your wiki's includes/specials/SpecialUserlogin.php
 * 3) Add the following to LocalSettings.php:
 * 4) Installation can now be verified through your wiki's Special:Version page

Configuration parameters
URL to the api.php file on the target wiki. Normally in the /w/ directory (e.g. http://www.mediawiki.org/w/api.php), but not always; for example, Wikia's is at http://www.wikia.com/api.php.
 * $wgMediaWikiAuthAPIURL

URL to the Special:Preferences page on the target wiki. Remember to append  to the URL, like this: http://www.wikia.com/wiki/Special:Preferences?uselang=en (see MediaWikiAuth.php, line 309 for the reason why this needs to be done)
 * $wgMediaWikiAuthPrefsURL