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Toronto Drupal Camp 2008

I thought I'd have some time for some house renovations before Drupal Camp this year, but planning Drupal projects is always harder than you'd think. In any case, I'm also helping plan Drupal Camp, and I've even got a couple of session proposals that have to do with planning Drupal websites. So come find out what all the fuss is about.

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IATS and CiviCRM

Update, Nov 2009: I've just discovered and fixed a bug I introduced in the 2.2 branch for the IATS plugin. The bug was introduced when i updated the API files from IATS and failed to notice that the legacy method for C$ one-time donations was no longer supported.
If you're using a version greater than or equal to 2.2.7, and are using IATS for C$, non-recurring donations, then you're affected.
To fix it edit the file : CRM/Core/Payment/IATS.php, and remove the line that looks like this:

$canDollar = ($params['currencyID'] == 'CAD'); //define currency type The full fix removes a conditional branch based on that value a little further on, but by removing this line, it'll never actually use that branch. Drop me a line if you have any questions.
Update, May 2009: This post is still getting quite a bit of traffic, which is great. Here are a few important things to note:
The IATS plugin code is in CiviCRM, you don't need to add any code.You do still …

The Tyee: Bricolage and Drupal Integration

The Tyee is a site I've been involved with since 2006 when I wrote the first, 4.7 version of a Drupal module to integrate Drupal content into a static site that was being generated from bricolage. About a year ago, I met with Dawn Buie and Phillip Smith and we mapped out a number of ways to improve the Drupal integration on the site, including upgrading the Drupal to version 5 from 4.7. Various parts of that grand plan have been slowly incorporated into the site, but as of next week, there'll be a big leap forward that coincides with a new design [implemented in Bricolage by David Wheeler who wrote and maintains Bricolage] as well as a new Drupal release of the Bricolage integration module.PlansApplication integration is tricky, and my first time round had quite a few issues. Here's a list of the improvements in the latest version:File space separation. Before, Drupal was installed in the apache document root, which is where bricolage was publishing it's content. This …

Me and varnish win against a DDOS attack.

This past month one of my servers experienced her first DDOS - a distributed denial of service attack. A denial of service attack (or DOS) just means an attempt to shut down an internet-based service by overwhelming it with requests. A simple DOS attack is usually relatively easy to deal with using the standard linux firewall called iptables.  The way iptables works is by filtering the traffic based on the incoming request source (i.e., the IP of the attacking machine). The attacking machine's IP can be added into your custom ip tables 'blacklist' to block all traffic from it, and it's quite scalable so the only thing that can be overwhelmed is your actual internet connection, which is hard to do.

The reason a distributed DOS is harder is because the attack is distributed from multiple machines. I first noticed an increase in my traffic about a day after it had started - it wasn't slowing down my machine, but it did show up as a spike in traffic. I quickly saw that…