phil ringnalda

If you run multiple blogs in more than one timezone with one installation of MT 2.66x, you (or, worse yet, your visitors) may have noticed that commenting on a blog that’s farther east will prevent you from commenting on a blog farther west from that same IP address until the local time catches up. Comment on a blog in EST at 5pm PST, and you then have to wait until 8pm PST to comment on a blog in PST on that same installation of MT.

The reason it works that way isn’t especially interesting, and I don’t see any reasonable way to fix it so that you can still throttle across all the blogs in an installation, but luckily it’s simple to fix it so that it only throttles based on how long ago someone at the same IP address commented on the same blog.

However, you’ll have to go to the extended entry to see the actual fix, since just thinking about the idea of IP address based throttling and banning, ignoring dialup, and DHCP, and dozens or hundreds of people behind one NAT router, and open proxies, and ISP caches, and, and, and, makes me ranty enough that I don’t want to leave any more of it than I have to out here where I’ll see it. So if you need to not ban people who comment on one of the blogs on your installation for several hours, see you over yonder…

In whichever file is doing your actual throttling ({MTdir}/lib/MT/App/Comments.pm or {MTdir}/extlib/jayallen/MTBlPost.pm if you are using MT-Blacklist 1.63), look for two lines:

    if (MT::Comment->count({ ip => $user_ip,
       created_on => [$from] },
     {range => {created_on => 1} }))

and

    my $count =  MT::Comment->count({ ip => $user_ip,
         created_on => [$from] },
       { range => {created_on => 1}});

and in both cases add blog_id => $entry->blog_id, after the ip => $user_ip,, so that you have

    if (MT::Comment->count({ ip => $user_ip,
       blog_id => $entry->blog_id,
       created_on => [$from] },
     {range => {created_on => 1} }))

and

    my $count =  MT::Comment->count({ ip => $user_ip,
         blog_id => $entry->blog_id,
         created_on => [$from] },
       { range => {created_on => 1}});