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Accepted
Sam
Asked: 2010-12-16 09:28:37 +0800 CST

Lazy Conditional Rule not doing anything! Why?

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I am rewriting php generated thumbnails with igly urls into nice ones. instead of img.php?src=bla.jpg&w=200&h=100 the static filenames IMG-file_w200_h100.jpg

Because the rewrite is so complex and involves many variations, only urls starting with IMG- should be listening to the rewrite rule. The conditional first rule however doesnt seem to work: if i change it into IMF or something else, it still fires the rewrite rules! Any ideas as to why the conditional doesnt work?

# Rewrite imgcpu?src= thumbnail maker to nice static urls
RewriteCond %{REQUEST_URI} ^IMG.*$
RewriteRule ^IMG-(.+)_w(.+)_h(.+)_f(.+).jpg$ imgcpu\?src=$1\.jpg&w=$2&h=$3&f=$4 [L]
RewriteRule ^IMG-(.+)_w(.+)_q(.+).jpg$ imgcpu\?src=$1\.jpg&w=$2&q=$3 [L]
etc
apache-2.2 .htaccess mod-rewrite rewritecond

2 Answers

  1. Try:

    RewriteCond %{REQUEST_URI} %/IMG.*$ [NC]
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  2. Best Answer

    The RewriteCond is actually processed after the RewriteRule matches! Here's a diagram from the Apache docs:

    Rewrite Control Flow

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