Pat Patterson, from Sun Microsystems, has released a quick proof of concept of an OpenSSO authentication plugin for MediaWiki. This could be a really useful plugin for any organization that has decided to go the Web SSO route. If you aren’t familiar with OpenSSO, and you maintain a number of applications with some form of cookie trusted mess, or multiple logins, I highly recommend checking it out.

I was actually planning on writing this extension, and haven’t had time to get to it. I’ve asked Pat if I can test, clean up, and maintain his extension in Wikimedia’s SVN.

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Recently, I deployed OpenSSO as a web single sign on service for a number of web servers, one of which was running MediaWiki. I haven’t yet written a SAML2 plugin for MediaWiki, so I am running an OpenSSO web agent for Apache, with the LDAP plugin doing auto-authentication.

After deploying the web agent, MediaWiki started parsing things incorrectly. Wiki-syntax like:

== Test ==
== Test2 ==
=== Test 3 ===

Was being corrupted, and turning into something like:

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