Archive for January 4th, 2006

mod_rewrite is deep magic

Wednesday, January 4th, 2006

When I moved this blog from MovableType to Wordpress, the rss feed urls changed. Since I didn’t want the livejournal syndication to break, I put in mod_rewrite RewriteRules to redirect those feed urls. When I upgraded to Wordpress 2.0, what had been an extremely long .htaccess became just a few lines long, and all the fancy stuff that they used to do in .htaccess with mod_rewrite are now evidently done in index.php itself. So I’m trying to figure out how to insert new RewriteRules to do what I did before, but everything I try either does nothing, or it causes the whole blog to break with a message in the error.log file saying “mod_rewrite: maximum number of internal redirects reached. Assuming configuration error.”

Here is the existing .htaccess:

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /blogs/pt/
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /blogs/pt/index.php
</IfModule>

I would have thought that adding the following would be sufficient:

RewriteRule index.rdf /blogs/pt/feed/
RewriteRule index.xml /blogs/pt/feed/

or possibly, since /feed/ is evidently going to be passed to index.php as arguments, like this:

RewriteRule index.rdf /blogs/pt/index.php?&feed
RewriteRule index.xml /blogs/pt/index.php?&feed

I also tried with [L] and/or [R] conditions. No luck.

I’d like to get all those syndicators working again. If you have any suggestions, please leave a comment or drop me an email.

Getting there

Wednesday, January 4th, 2006

When the Google Maps API was announced, David Megginson publically challenged me and other programmers to come up with a decent flight planning application that used it. Well, it’s not here yet, but RunwayFinder - a flight planning tool for pilots is getting closer. At least it’s a decent substitute for the “Nearest Airports” search in AirNav - you put in an airport id and it shows the ones in the neighbourhood as well.