commit fcbbd70a5576d4ec62f597f1f1d007458b603ab9
Author: Ævar Arnfjörð Bjarmason <avar@users.mediawiki.org>
Date:   Sat Nov 26 23:22:24 2005 +0000

    * A special page extension that adds a special page that generates citations
      for pages.

diff --git a/SpecialCite.php b/SpecialCite.php
new file mode 100644
index 00000000..2d6ba0bc
--- /dev/null
+++ b/SpecialCite.php
@@ -0,0 +1,225 @@
+<?php
+if (!defined('MEDIAWIKI')) die();
+/**
+ * A special page extension that adds a special page that generates citations
+ * for pages.
+ *
+ * @package MediaWiki
+ * @subpackage Extensions
+ *
+ * @link http://meta.wikimedia.org/wiki/Help:Cite Documentation
+ *
+ * @author Ævar Arnfjörð Bjarmason <avarab@gmail.com>
+ * @copyright Copyright © 2005, Ævar Arnfjörð Bjarmason
+ * @license http://www.gnu.org/copyleft/gpl.html GNU General Public License 2.0 or later
+ */
+
+$wgExtensionFunctions[] = 'wfSpecialCite';
+$wgExtensionCredits['specialpage'][] = array(
+	'name' => 'Cite',
+	'author' => 'Ævar Arnfjörð Bjarmason',
+	'description' => 'adds a [[Special:Cite|citation]] special page & toolbox link',
+	'url' => 'http://meta.wikimedia.org/wiki/Help:Cite'
+);
+
+$wgHooks['SkinTemplateBuildNavUrlsNav_urlsAfterPermalink'][] = 'wfSpecialCiteNav';
+$wgHooks['MonoBookTemplateToolboxEnd'][] = 'wfSpecialCiteToolbox';
+
+function wfSpecialCite() {
+	global $IP, $wgMessageCache, $wgHooks;
+	
+	$wgMessageCache->addMessages(
+		array(
+			'cite' => 'Cite',
+			'cite_page' => 'Page: ',
+			'cite_submit' => 'Cite',
+			'cite_page_link' => 'Cite this page',
+			'cite_text' =>
+					"* ''{{FULLPAGENAME}}'' (last modified {{CURRENTTIME}}," .
+					' {{CURRENTDAY}} {{CURRENTMONTHNAME}} {{CURRENTYEAR}} UTC).' .
+					' {{SITENAME}}, {{int:sitesubtitle}}. Retrived <cite>{{CURRENTTIME}},' .
+					' {{CURRENTDAY}} {{CURRENTMONTHNAME}} {{CURRENTYEAR}}</cite> from' .
+					' {{fullurl:{{FULLPAGENAME}}|oldid={{REVISIONID}}}}'
+		)
+	);
+
+	require_once "$IP/includes/SpecialPage.php";
+	class Cite extends SpecialPage {
+		function Cite() {
+			SpecialPage::SpecialPage( 'Cite' );
+		}
+		
+		function execute( $par ) {
+			global $wgOut, $wgRequest;
+
+			$this->setHeaders();
+
+			$page = isset( $par ) ? $par : $wgRequest->getText( 'page' );
+			
+			$title = Title::newFromText( $page );
+			$article = new Article( $title );
+
+			$cform = new CiteForm( &$title );
+
+			if ( is_null( $title ) || ! $article->exists() )
+				$cform->execute();
+			else {
+				$cform->execute();
+				
+				$cout = new CiteOutput( &$title, &$article );
+				$cout->execute();
+			}
+		}
+	}
+
+	class CiteForm {
+		var $mTitle;
+		
+		function CiteForm( &$title ) {
+			$this->mTitle =& $title;
+		}
+		
+		function execute() {
+			global $wgOut, $wgTitle;
+
+			$wgOut->addHTML(
+				wfElement( 'form',
+					array(
+						'id' => 'specialcite',
+						'method' => 'get',
+						'action' => $wgTitle->escapeLocalUrl()
+					),
+					null
+				) .
+					wfOpenElement( 'label' ) .
+						wfMsgHtml( 'cite_page' ) .
+						wfElement( 'input',
+							array(
+								'type' => 'text',
+								'size' => 20,
+								'name' => 'page',
+								'value' => is_object( $this->mTitle ) ? $this->mTitle->getPrefixedText() : ''
+							),
+							''
+						) .
+						' ' .
+						wfElement( 'input',
+							array(
+								'type' => 'submit',
+								'value' => wfMsgHtml( 'cite_submit' )
+							),
+							''
+						) .
+					wfCloseElement( 'label' ) .
+				wfCloseElement( 'form' )
+			);
+		}
+
+	}
+
+	class CiteOutput {
+		var $mTitle, $mArticle, $mMsg, $mParserOptions;
+		var $mParser;
+
+		function CiteOutput( $title, $article ) {
+			global $wgHooks, $wgParser;
+			
+			$this->mTitle =& $title;
+			$this->mArticle =& $article;
+
+			$wgHooks['ParserGetVariableValueRevid'][] = array( $this, 'revid' );
+			$wgHooks['ParserGetVariableValueVarCache'][] = array( $this, 'varCache' );
+
+			$this->genParserOptions();
+			$this->genParser();
+
+			$wgParser->setHook( 'cite', 'CiteParse', $this, &$mParser );
+		}
+		
+		function execute() {
+			global $wgOut, $wgUser, $wgParser, $wgHooks;
+
+			$wgHooks['ParserGetVariableValueTs'][] = array( $this, 'timestamp' );
+
+			$this->genMessage();
+			$ret = $wgParser->parse( $this->mMsg, &$this->mTitle, $this->mParserOptions );
+			$wgOut->addHtml( $ret->getText() );
+		}
+
+		function genMessage() {
+			global $wgMessageCache;
+			
+			$setting = $wgMessageCache->mDisableTransform;
+			$wgMessageCache->disableTransform();
+			$this->mMsg = $wgMessageCache->get( 'cite_text', true, true );
+			$wgMessageCache->mDisableTransform = $setting;
+		}
+
+		function genParserOptions() {
+			$this->mParserOptions = ParserOptions::newFromUser( $wgUser );
+			$this->mParserOptions->setDateFormat( MW_DATE_DEFAULT );
+			$this->mParserOptions->setEditSection( false );
+		}
+
+		function genParser() {
+			$this->mParser = new Parser;
+		}
+
+		function CiteParse( $in, $argv ) {
+			global $wgTitle;
+			
+			$ret = $this->mParser->parse( $in, $wgTitle, $this->mParserOptions, false );
+	
+			return $ret->getText();
+		}
+
+		function varCache() { return false; }
+
+		function timestamp( &$parser, &$ts ) {
+			if ( isset( $parser->mTagHooks['cite'] ) )
+				$ts = wfTimestamp( TS_UNIX, $this->mArticle->getTimestamp() );
+			
+			return true;
+		}
+
+		function revid( &$parser, &$revid ) {
+			$this->mArticle->fetchContent();
+			$revid = $this->mArticle->getRevIdFetched();
+
+			return false;
+		}
+	}
+	
+	SpecialPage::addPage( new Cite );
+}
+
+function wfSpecialCiteNav( &$skintemplate, &$nav_urls, &$oldid, &$revid ) {
+	if ( (int)$oldid  )
+		$nav_urls['cite'] = array(
+			'text' => wfMsg( 'cite_page_link' ),
+			'href' => ''
+		);
+	else if ( $revid !== 0 )
+		$nav_urls['cite'] = array(
+			'text' => wfMsg( 'cite_page_link' ),
+			'href' => $skintemplate->makeSpecialUrl( 'Cite/' . $skintemplate->thispage )
+		);
+
+	return true;
+}
+
+function wfSpecialCiteToolbox( &$monobook ) {
+	if ( isset( $monobook->data['nav_urls']['cite'] ) )
+		if ( $monobook->data['nav_urls']['cite']['href'] == '' ) {
+			?><li id="t-iscite"><?php echo $monobook->msg( 'cite_page_link' ); ?></li><?php
+		} else {
+			?><li id="t-cite">
+				<a href="<?php echo htmlspecialchars( $monobook->data['nav_urls']['cite']['href'] ) ?>">
+					<?php echo $monobook->msg( 'cite_page_link' ); ?>
+				</a>
+			</li>
+			<?php
+		}
+	
+	return true;
+}