# MediaWiki thumb.php and rewrite rules

May, last year, I created an empty draft for this post, because, around that time, I had gone through quite some effort before I got thumbnails for foreign file repos working just right. Now, I’m taking a dive into my MediaWiki working dirs in preparation of the creation of a separate development environment, so it’s a good moment to rehash the past experience (almost as good as when I’d have done it right away).

This is how I configured the foreign file repo to be able to use images uploaded to the English wiki from the Dutch wiki:

$wgHashedUploadDirectory = false;$wgForeignFileRepos[] = array(
'class' => 'ForeignDBRepo',
'name' => 'en',
'url' => "http://wiki.hardwood-investments.net/media",
'hashLevels' => 0,
//'thumbScriptUrl' => "http://wiki.hardwood-investments.net/thumb.php",
'transformVia404' => true,//!$wgGenerateThumbnailOnParse, 'dbType' =>$wgDBtype,
'dbServer' => $wgDBserver, 'dbUser' =>$wgDBuser,
'dbPassword' => $wgDBpassword, 'dbName' => 'hardwood', 'tablePrefix' => 'mw_', 'hasSharedCache' => false, 'descBaseUrl' => 'http://wiki.hardwood-investments.net/Image:', 'fetchDescription' => false ); To make thumbnails be generated by thumb.php on request I added the following to my .htaccess at the other end (and visa versa, because the Dutch wiki actually contains most of the images): RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^media/thumb/([^/]+)/([0-9]+)px-.*$ /thumb.php?f=$1&width=$2 [L,QSA]