From 96f004dd6a31319b1103db13c32d809c29e64838 Mon Sep 17 00:00:00 2001
From: Aaron Schulz <aaron@users.mediawiki.org>
Date: Thu, 29 May 2008 21:14:11 +0000
Subject: [PATCH] Don't temp users with rollback links to uneditable pages

---
 includes/DifferenceEngine.php | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/includes/DifferenceEngine.php b/includes/DifferenceEngine.php
index 09f884945a..e74e4c756e 100644
--- a/includes/DifferenceEngine.php
+++ b/includes/DifferenceEngine.php
@@ -156,7 +156,9 @@ CONTROL;
 
 		$sk = $wgUser->getSkin();
 
-		if ( $this->mNewRev->isCurrent() && $wgUser->isAllowed('rollback') ) {
+		// Check if page is editable
+		$editable = $this->mNewRev->getTitle()->userCan( 'edit' );
+		if ( $editable && $this->mNewRev->isCurrent() && $wgUser->isAllowed('rollback') ) {
 			$rollback = '&nbsp;&nbsp;&nbsp;' . $sk->generateRollback( $this->mNewRev );
 		} else {
 			$rollback = '';
-- 
2.20.1