Perl -T

Fortunately it wasn't too difficult to fix my code for taint mode to work. I was already centralizing my various string filtering functions to a small handful, which just needed to untaint the strings before returning them.

Then it was just a matter of making sure I ran these filters everywhere that a user ID gets passed into a function (I was relying on the fact that my userExists() check would fail if you give a bad user ID number, but the variable was technically still tainted so I had to fix that properly).

I've thoroughly tested all areas of my sites to make sure nothing broke. Hopefully I didn't miss any. :)