https://bugzilla.wikimedia.org/show_bug.cgi?id=25882
Ilmari Karonen <nos...@vyznev.net> changed:
What |Removed |Added
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CC| |nos...@vyznev.net
--- Comment #1 from Ilmari Karonen <nos...@vyznev.net> 2010-11-22 20:28:25 UTC
---
A wiki I help to run had need for this, so I wrote a quick and dirty hook to
add rel=canonical links to all normal page views:
$wgHooks['ArticleViewHeader'][] = 'addCanonicalLinks';
function addCanonicalLinks ( &$article ) {
global $wgRequest, $wgOut;
if ( $article->getOldID() || $wgRequest->getVal( 'redirect' ) == 'no'
) return true;
$tags = ( $wgOut->mLinktags ? $wgOut->mLinktags : array() );
foreach ( $tags as $tag ) {
if ( $tag['rel'] === 'canonical' ) return true;
}
$wgOut->addLink( array( 'rel' => 'canonical',
'href' => $article->getTitle()->getFullURL() ) );
return true;
}
Ideally, of course, we should have some way for extensions and core components
to indicate which URL parameters actually affect the content of the page, so
that correct canonical links could be automatically constructed for all pages
and actions. But this simple workaround should handle 99% of all cases.
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