WikiSEO.php

<?php
/**
 * WikiSEO extension - Allows per page meta settings (keywords, description) and to change the title.
 * @version 1.2.1 - 2014/12/11 (based on the work of Vladimir Radulovski and Jim Wilson)
 *
 * @link https://www.mediawiki.org/wiki/Extension:WikiSEO Documentation
 * @link https://www.mediawiki.org/wiki/Extension_talk:WikiSEO Support
 * @link https://github.com/tinymighty/wiki-seo/issues Bug tracker
 * @link https://github.com/andru/wiki-seo Source Code
 *
 * @file
 * @ingroup Extensions
 * @package MediaWiki
 * @author Andru Vallance (Andrujhon)
 * @copyright (C) 2013 Andru Vallance
 * @license https://www.gnu.org/copyleft/gpl.html GNU General Public License 2.0 or later
 */
// Confirm MediaWiki environment.
if ( !defined( 'MEDIAWIKI' ) ) {
	die( 'This file is a MediaWiki extension and thus not a valid entry point.' );
}

global $wgExtensionMessagesFiles;

if ( function_exists( 'wfLoadExtension' ) ) {
	wfLoadExtension( 'WikiSEO' );

	// Keep i18n globals so mergeMessageFileList.php doesn't break
	$wgExtensionMessagesFiles['WikiSEOMagic'] = __DIR__ . '/WikiSEO.i18n.magic.php';
	$wgExtensionMessagesFiles['WikiSEO'] = __DIR__ . '/WikiSEO.i18n.php';
	wfWarn(
		'Deprecated PHP entry point used for WikiSEO extension. Please use wfLoadExtension instead, ' .
		'see https://www.mediawiki.org/wiki/Extension_registration for more details.'
	);
	return;
} else {
	global $wgExtensionCredits, $wgAutoloadClasses, $wgHooks;

	// Display extension properties on MediaWiki.
	$wgExtensionCredits['parserhook'][] = array(
		'path' => __FILE__,
		'name' => 'WikiSEO',
		'author' => array(
			'Andru Vallance', '...'
		),
		'url' => 'https://www.mediawiki.org/wiki/Extension:WikiSEO',
		'descriptionmsg' => 'seo-desc',
		'license-name' => 'GPL-2.0+',
		'version' => '1.2.1'
	);

	// Register extension class.
	$wgAutoloadClasses['WikiSEO'] = __DIR__ . '/WikiSEO.body.php';

	// Register extension messages and other localisation.
	$wgExtensionMessagesFiles['WikiSEOMagic'] = __DIR__ . '/WikiSEO.i18n.magic.php';
	$wgExtensionMessagesFiles['WikiSEO'] = __DIR__ . '/WikiSEO.i18n.php';

	//init the parser function & tag extension
	$wgHooks['ParserFirstCallInit'][] = 'WikiSEO::init';
	//check the wikitext for cached values
	$wgHooks['OutputPageBeforeHTML'][] = 'WikiSEO::loadParamsFromWikitext';

	//set the tags
	$wgHooks['BeforePageDisplay'][] = 'WikiSEO::modifyHTML';

	$wgGoogleSiteVerificationKey = null;
	$wgFacebookAdmins = null;
	$wgFacebookAppID = null;
	$wgAddJSONLD = true;
}