Out with GUIDs.. in with Campus IDs

OK, policy decision for our up-and-coming launch of uPortal 2.5.. I’m going to stop using the LDAP GUID as the uPortal ‘unique username’, and use the new UMBC Campus ID instead.

Background: Every uPortal user gets an entry in uPortal’s user table, UP_USER. This table contains (among other things) a numeric ID for primary key, and a text ‘username’. Username is what uPortal uses as its security principal. For our current production installation of uPortal, we’re using the user’s LDAP GUID as the security principal. This works fine, but it causes problems with things like the Groups and Permissions manager, which allows you to search for specific usernames. The GUID is a long, unwieldy string that isn’t really human-friendly, so it’s not really something we want people using as a search key.

Now, why don’t we just use the user’s UMBC username as the security principal? Certainly seems logical. But, down the road, we want to provide access to the portal for alumni, prospective students, parents, etc. These people will not necessarily have a UMBC username. If we use that as a security principal, we effectively lock these people out of the portal. We need a unique identifier that everyone in the directory possesses. Until recently, the GUID was the only thing that fit the bill. Now, we have the nifty UMBC Campus ID, which is a simple string of two alphanumeric characters followed by five digits. Unlike GUID, the Campus ID is intended for human consumption (we actually display it on our ID cards). So, while it may not be quite as search-friendly as a username, it’s much more so than a GUID, and everyone in the directory has one.

Yet another happy byproduct of SSN remediation. I’m sure I’ll be cursing it next week after the SIS cutover, but I’ll say it again: In the long run, it’ll be well worth the hassle.

Followup… looks like if I want to do this, I’ll need to do an extra LDAP call to pull the Campus ID out of the PersonDB record. Not the end of the world, but not a 10-minute change either as I had hoped. I’ll have to come back to this later.

6/22: Looks like Rob is now including Campus ID in the Webauth ticket hash map. So, no extra LDAP query necessary. Cool…


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