Some advertisers set their ad's url to an intermediate tracker so
they can independently track clicks. This results in a series of
redirects like this:
reddit tracker > intermediate tracker > final destination
The ad's url is communicated to the reddit tracker through a query
parameter which is urlencoded on reddit.com and then unquoted when
being handled by the reddit tracker. This unquoting causes problems
if there is an intermediate tracker with its own query string
that needs to be urlencoded. This commit adds handling for those query
strings.
Ok, now I'm getting some angst in my commit messages like my
predecessors had. I understand now. It's a terrible burden. Why must
the calendar progress? Why must numbers increment? The world is
forever turning.
The future is here.
It is 2014.
We need onload to be able to get a client-IP based
tracking validation hash, but it doesn't actually need
to do any database work to make those hashes. It also
fails a huge number of times per day. This moves the hash
calculation out to an external app with no db dependencies.
