From 9823d78e3b347199c85188fd2a580f9f35aadcef Mon Sep 17 00:00:00 2001
From: Marius Hoch <hoo@online.de>
Date: Tue, 2 Jul 2013 03:55:53 +0200
Subject: [PATCH] Make AbuseFilter work without AntiSpoof

This dependency isn't really needed in many cases
while it can cause troubles if not fulfilled.

Change-Id: I9990e99c4d3d49b5bc400bbc4a0ec02142d6f055
---
 AbuseFilter.parser.php | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/AbuseFilter.parser.php b/AbuseFilter.parser.php
index 601c8bd00..13c542836 100644
--- a/AbuseFilter.parser.php
+++ b/AbuseFilter.parser.php
@@ -1926,13 +1926,21 @@ class AbuseFilterParser {
 	 * @return mixed
 	 */
 	protected function ccnorm( $s ) {
-		static $equivset = null;
 		static $replacementArray = null;
 
-		if ( is_null( $equivset ) || is_null( $replacementArray ) ) {
+		if ( is_null( $replacementArray ) ) {
 			global $IP;
-			require_once( "$IP/extensions/AntiSpoof/equivset.php" );
-			$replacementArray = new ReplacementArray( $equivset );
+			if ( is_readable( "$IP/extensions/AntiSpoof/equivset.php" ) ) {
+				require "$IP/extensions/AntiSpoof/equivset.php";
+				$replacementArray = new ReplacementArray( $equivset );
+			} else {
+				// AntiSpoof isn't available, so just create a dummy
+				wfDebugLog(
+					'AbuseFilter',
+					"Can't compute normalized string (ccnorm) as the AntiSpoof Extension isn't isntalled."
+				);
+				$replacementArray = new ReplacementArray( array() );
+			}
 		}
 
 		return $replacementArray->replace( $s );