From 89f0d3b3d7c6a390c30abade5356cc365492410e Mon Sep 17 00:00:00 2001
From: Gabriel Wicke <gwicke@users.mediawiki.org>
Date: Fri, 20 Feb 2004 18:37:55 +0000
Subject: [PATCH] Purging of scaled images when thumbnail is regenerated.
 Depends on visiting the page containing the scaled image once without
 caching, which means it is automatic for users with session. If anon user
 comes first he needs to shift-reload to purge the image.

---
 includes/Skin.php | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/includes/Skin.php b/includes/Skin.php
index ca7bc7e7f9..cdf16ef493 100644
--- a/includes/Skin.php
+++ b/includes/Skin.php
@@ -1528,14 +1528,23 @@ class Skin {
 		global $wgUploadDirectory;
 		global $wgImageMagickConvertCommand;
 		global $wgUseImageMagick;
+		global $wgUseSquid, $wgInternalServer;
 		$imgPath   = wfImagePath( $name );
 		$thumbName = $width."px-".$icon.$name;
 		$thumbPath = wfImageThumbDir( $thumbName )."/".$thumbName;
 		$thumbUrl  = wfImageThumbUrl( $thumbName );
 
 		if (     (! file_exists( $thumbPath ) && file_exists( $imgPath )) 
-		     ||  ( filemtime($thumbPath) < filemtime($imgPath) ) ) {
-		        if ( $wgUseImageMagick ) {
+		||  ( filemtime($thumbPath) < filemtime($imgPath) ) ) {
+			# Squid purging
+			if ( $wgUseSquid ) {
+				$urlArr = Array(
+					$wgInternalServer.$thumbUrl
+				);
+				wfPurgeSquidServers($urlArr);
+			}
+
+			if ( $wgUseImageMagick ) {
 				# use ImageMagick
 				$cmd  =  $wgImageMagickConvertCommand .
 					" -quality 85 -geometry {$width} ".
-- 
2.20.1