From 10619cde8eb1eef0f3a10544f2f4adefe5b0bf66 Mon Sep 17 00:00:00 2001
From: Daniel Friesen <dantman@users.mediawiki.org>
Date: Fri, 19 Nov 2010 01:40:59 +0000
Subject: [PATCH] Commit Description2 and OpenGraphMeta extensions

---
 Description2.php | 76 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 Description2.php

diff --git a/Description2.php b/Description2.php
new file mode 100644
index 0000000..dffb381
--- /dev/null
+++ b/Description2.php
@@ -0,0 +1,76 @@
+<?php
+/**
+ * Description2.php -- Adds meaningful description <meta> tag to MW pages and into the parser output
+ * Copyright 2010 Daniel Friesen
+ *
+ * @file
+ * @ingroup Extensions
+ * @author Daniel Friesen (http://mediawiki.org/wiki/User:Dantman) <mediawiki@danielfriesen.name>
+ * @license http://www.gnu.org/copyleft/gpl.html GNU General Public License 2.0 or later
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+if ( !defined( 'MEDIAWIKI' ) ) die( "This is an extension to the MediaWiki package and cannot be run standalone." );
+
+$wgExtensionCredits['other'][] = array(
+	'path' => __FILE__,
+	'name' => 'Description2',
+	'version' => "0.1",
+	'author' => 'Daniel Friesen',
+	'url' => 'http://www.mediawiki.org/wiki/Extension:Description2',
+	'description' => 'Adds a description meta-tag to MW pages and into the ParserOutput for other extensions to use',
+);
+
+$wgHooks['ParserAfterTidy'][] = 'egDescription2ParserAfterTidy';
+function egDescription2ParserAfterTidy( &$parser, &$text ) {
+	global $wgContLang;
+	$desc = '';
+	
+	$myText = preg_replace('%<table\b[^>]*+>(?:(?R)|[^<]*+(?:(?!</?table\b)<[^<]*+)*+)*+</table>%i', '', $text);
+	
+	$paragraphs = array();
+	if ( preg_match_all('#<p>.*?</p>#is', $myText, $paragraphs) ) {
+		foreach ( $paragraphs[0] as $paragraph ) {
+			$paragraph = trim(strip_tags($paragraph));
+			if ( !$paragraph )
+				continue;
+			$desc = $paragraph;
+			break;
+		}
+	}
+	
+	if ( $desc ) {
+		$pOut = $parser->getOutput();
+		$pOut->setProperty("description", $desc);
+		$pOut->addOutputHook("setdescription");
+	}
+	
+	return true;
+}
+
+$wgParserOutputHooks['setdescription'] = 'egDescription2ParserOutputSetDescription';
+function egDescription2ParserOutputSetDescription( $out, $parserOutput, $data ) {
+	// Export the description from the main parser output into the OutputPage
+	$out->mDescription = $parserOutput->getProperty("description");
+}
+
+$wgHooks['BeforePageDisplay'][] = 'egDescription2PageHook';
+function egDescription2PageHook( &$out, &$sk ) {
+	if ( isset($out->mDescription) && $out->mDescription )
+		$out->addMeta("description", $out->mDescription);
+	return true;
+}
+