From 94ef54ceaf87a6ed60e05b3c2021a55de855ac5f Mon Sep 17 00:00:00 2001
From: Roan Kattouw <catrope@users.mediawiki.org>
Date: Fri, 13 Feb 2009 16:17:39 +0000
Subject: [PATCH] Add a <link rel="canonical"> tag on redirected page views per
 <http://googlewebmastercentral.blogspot.com/2009/02/specify-your-canonical.html>

---
 RELEASE-NOTES        | 1 +
 includes/Article.php | 5 +++++
 2 files changed, 6 insertions(+)

diff --git a/RELEASE-NOTES b/RELEASE-NOTES
index 5ce56ed5de..d3ab9e6a1f 100644
--- a/RELEASE-NOTES
+++ b/RELEASE-NOTES
@@ -97,6 +97,7 @@ it from source control: http://www.mediawiki.org/wiki/Download_from_SVN
 * Add NUMBEROFACTIVEUSERS magic word, which is like NUMBEROFUSERS, but uses
   the active users data from site_stats.
 * (bug 13040) Gender-aware user namespace aliases
+* Add a <link rel="canonical"> tag on redirected page views
 
 === Bug fixes in 1.15 ===
 * (bug 16968) Special:Upload no longer throws useless warnings.
diff --git a/includes/Article.php b/includes/Article.php
index 28928fe29f..82e33889c5 100644
--- a/includes/Article.php
+++ b/includes/Article.php
@@ -836,6 +836,11 @@ class Article {
 					$fragment = Xml::escapeJsString( $this->mTitle->getFragmentForURL() );
 					$wgOut->addInlineScript( "redirectToFragment(\"$fragment\");" );
 				}
+
+				// Add a <link rel="canonical"> tag
+				$wgOut->addLink( array( 'rel' => 'canonical',
+					'href' => $this->mTitle->getFullURL() )
+				);
 				$wasRedirected = true;
 			}
 		} elseif( !empty( $rdfrom ) ) {
-- 
2.20.1