Referral Tracking With iRules
Introduction
We’ve been having a lot of fun with tables and the Google Charts API. Colin kicked it off with his Heatmaps series and since then we’ve come up with a handful of other implementations....
Published Oct 11, 2010
Version 1.0
hoolio
Cirrostratus
CirrostratusNice article George.
You could add a sanity check to the iRule to avoid a runtime error if the data group doesn't exist:
if { not [class exists referer] }{ return }
The data group reference here shouldn't have the $:: prefix. So [class lookup [HTTP::username] $::authorized_users] should be [class lookup [HTTP::username] authorized_users].
Aaron