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+<?php
+/**#@+
+ * Give information about the version of MediaWiki, PHP, the DB and extensions
+ *
+ * @file
+ * @ingroup SpecialPage
+ *
+ * @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
+ */
+
+/**
+ * constructor
+ */
+function wfSpecialVersion() {
+ $version = new SpecialVersion;
+ $version->execute();
+}
+
+/**
+ * @ingroup SpecialPage
+ */
+class SpecialVersion {
+ private $firstExtOpened = true;
+
+ /**
+ * main()
+ */
+ function execute() {
+ global $wgOut, $wgMessageCache, $wgSpecialVersionShowHooks;
+ $wgMessageCache->loadAllMessages();
+
+ $wgOut->addHTML( '<div dir="ltr">' );
+ $text =
+ $this->MediaWikiCredits() .
+ $this->softwareInformation() .
+ $this->extensionCredits();
+ if ( $wgSpecialVersionShowHooks ) {
+ $text .= $this->wgHooks();
+ }
+ $wgOut->addWikiText( $text );
+ $wgOut->addHTML( $this->IPInfo() );
+ $wgOut->addHTML( '</div>' );
+ }
+
+ /**#@+
+ * @private
+ */
+
+ /**
+ * @return wiki text showing the license information
+ */
+ static function MediaWikiCredits() {
+ $ret = Xml::element( 'h2', array( 'id' => 'mw-version-license' ), wfMsg( 'version-license' ) ) .
+ "__NOTOC__
+ This wiki is powered by '''[http://www.mediawiki.org/ MediaWiki]''',
+ copyright (C) 2001-2008 Magnus Manske, Brion Vibber, Lee Daniel Crocker,
+ Tim Starling, Erik Möller, Gabriel Wicke, Ævar Arnfjörð Bjarmason,
+ Niklas Laxström, Domas Mituzas, Rob Church, Yuri Astrakhan, Aryeh Gregor,
+ Aaron Schulz and others.
+
+ MediaWiki 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.
+
+ MediaWiki 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 [{{SERVER}}{{SCRIPTPATH}}/COPYING 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
+ or [http://www.gnu.org/licenses/old-licenses/gpl-2.0.html read it online].
+ ";
+
+ return str_replace( "\t\t", '', $ret ) . "\n";
+ }
+
+ /**
+ * @return wiki text showing the third party software versions (apache, php, mysql).
+ */
+ static function softwareInformation() {
+ $dbr = wfGetDB( DB_SLAVE );
+
+ return Xml::element( 'h2', array( 'id' => 'mw-version-software' ), wfMsg( 'version-software' ) ) .
+ Xml::openElement( 'table', array( 'id' => 'sv-software' ) ) .
+ "<tr>
+ <th>" . wfMsg( 'version-software-product' ) . "</th>
+ <th>" . wfMsg( 'version-software-version' ) . "</th>
+ </tr>\n
+ <tr>
+ <td>[http://www.mediawiki.org/ MediaWiki]</td>
+ <td>" . self::getVersionLinked() . "</td>
+ </tr>\n
+ <tr>
+ <td>[http://www.php.net/ PHP]</td>
+ <td>" . phpversion() . " (" . php_sapi_name() . ")</td>
+ </tr>\n
+ <tr>
+ <td>" . $dbr->getSoftwareLink() . "</td>
+ <td>" . $dbr->getServerVersion() . "</td>
+ </tr>\n" .
+ Xml::closeElement( 'table' );
+ }
+
+ /**
+ * Return a string of the MediaWiki version with SVN revision if available
+ *
+ * @return mixed
+ */
+ public static function getVersion() {
+ global $wgVersion, $IP;
+ wfProfileIn( __METHOD__ );
+ $svn = self::getSvnRevision( $IP );
+ $version = $svn ? "$wgVersion (r$svn)" : $wgVersion;
+ wfProfileOut( __METHOD__ );
+ return $version;
+ }
+
+ /**
+ * Return a string of the MediaWiki version with a link to SVN revision if
+ * available
+ *
+ * @return mixed
+ */
+ public static function getVersionLinked() {
+ global $wgVersion, $IP;
+ wfProfileIn( __METHOD__ );
+ $svn = self::getSvnRevision( $IP );
+ $viewvc = 'http://svn.wikimedia.org/viewvc/mediawiki/trunk/phase3/?pathrev=';
+ $version = $svn ? "$wgVersion ([{$viewvc}{$svn} r$svn])" : $wgVersion;
+ wfProfileOut( __METHOD__ );
+ return $version;
+ }
+
+ /** Generate wikitext showing extensions name, URL, author and description */
+ function extensionCredits() {
+ global $wgExtensionCredits, $wgExtensionFunctions, $wgParser, $wgSkinExtensionFunctions;
+
+ if ( ! count( $wgExtensionCredits ) && ! count( $wgExtensionFunctions ) && ! count( $wgSkinExtensionFunctions ) )
+ return '';
+
+ $extensionTypes = array(
+ 'specialpage' => wfMsg( 'version-specialpages' ),
+ 'parserhook' => wfMsg( 'version-parserhooks' ),
+ 'variable' => wfMsg( 'version-variables' ),
+ 'media' => wfMsg( 'version-mediahandlers' ),
+ 'other' => wfMsg( 'version-other' ),
+ );
+ wfRunHooks( 'SpecialVersionExtensionTypes', array( &$this, &$extensionTypes ) );
+
+ $out = Xml::element( 'h2', array( 'id' => 'mw-version-ext' ), wfMsg( 'version-extensions' ) ) .
+ Xml::openElement( 'table', array( 'id' => 'sv-ext' ) );
+
+ foreach ( $extensionTypes as $type => $text ) {
+ if ( isset ( $wgExtensionCredits[$type] ) && count ( $wgExtensionCredits[$type] ) ) {
+ $out .= $this->openExtType( $text );
+
+ usort( $wgExtensionCredits[$type], array( $this, 'compare' ) );
+
+ foreach ( $wgExtensionCredits[$type] as $extension ) {
+ if ( isset( $extension['version'] ) ) {
+ $version = $extension['version'];
+ } elseif ( isset( $extension['svn-revision'] ) &&
+ preg_match( '/\$(?:Rev|LastChangedRevision|Revision): *(\d+)/',
+ $extension['svn-revision'], $m ) )
+ {
+ $version = 'r' . $m[1];
+ } else {
+ $version = null;
+ }
+
+ $out .= $this->formatCredits(
+ isset ( $extension['name'] ) ? $extension['name'] : '',
+ $version,
+ isset ( $extension['author'] ) ? $extension['author'] : '',
+ isset ( $extension['url'] ) ? $extension['url'] : null,
+ isset ( $extension['description'] ) ? $extension['description'] : '',
+ isset ( $extension['descriptionmsg'] ) ? $extension['descriptionmsg'] : ''
+ );
+ }
+ }
+ }
+
+ if ( count( $wgExtensionFunctions ) ) {
+ $out .= $this->openExtType( wfMsg( 'version-extension-functions' ) );
+ $out .= '<tr><td colspan="3">' . $this->listToText( $wgExtensionFunctions ) . "</td></tr>\n";
+ }
+
+ if ( $cnt = count( $tags = $wgParser->getTags() ) ) {
+ for ( $i = 0; $i < $cnt; ++$i )
+ $tags[$i] = "&lt;{$tags[$i]}&gt;";
+ $out .= $this->openExtType( wfMsg( 'version-parser-extensiontags' ) );
+ $out .= '<tr><td colspan="3">' . $this->listToText( $tags ). "</td></tr>\n";
+ }
+
+ if( $cnt = count( $fhooks = $wgParser->getFunctionHooks() ) ) {
+ $out .= $this->openExtType( wfMsg( 'version-parser-function-hooks' ) );
+ $out .= '<tr><td colspan="3">' . $this->listToText( $fhooks ) . "</td></tr>\n";
+ }
+
+ if ( count( $wgSkinExtensionFunctions ) ) {
+ $out .= $this->openExtType( wfMsg( 'version-skin-extension-functions' ) );
+ $out .= '<tr><td colspan="3">' . $this->listToText( $wgSkinExtensionFunctions ) . "</td></tr>\n";
+ }
+ $out .= Xml::closeElement( 'table' );
+ return $out;
+ }
+
+ /** Callback to sort extensions by type */
+ function compare( $a, $b ) {
+ global $wgLang;
+ if( $a['name'] === $b['name'] ) {
+ return 0;
+ } else {
+ return $wgLang->lc( $a['name'] ) > $wgLang->lc( $b['name'] )
+ ? 1
+ : -1;
+ }
+ }
+
+ function formatCredits( $name, $version = null, $author = null, $url = null, $description = null, $descriptionMsg = null ) {
+ $extension = isset( $url ) ? "[$url $name]" : $name;
+ $version = isset( $version ) ? "(" . wfMsg( 'version-version' ) . " $version)" : '';
+
+ # Look for a localized description
+ if( isset( $descriptionMsg ) ) {
+ $msg = wfMsg( $descriptionMsg );
+ if ( !wfEmptyMsg( $descriptionMsg, $msg ) && $msg != '' ) {
+ $description = $msg;
+ }
+ }
+
+ return "<tr>
+ <td><em>$extension $version</em></td>
+ <td>$description</td>
+ <td>" . $this->listToText( (array)$author ) . "</td>
+ </tr>\n";
+ }
+
+ /**
+ * @return string
+ */
+ function wgHooks() {
+ global $wgHooks;
+
+ if ( count( $wgHooks ) ) {
+ $myWgHooks = $wgHooks;
+ ksort( $myWgHooks );
+
+ $ret = Xml::element( 'h2', array( 'id' => 'mw-version-hooks' ), wfMsg( 'version-hooks' ) ) .
+ Xml::openElement( 'table', array( 'id' => 'sv-hooks' ) ) .
+ "<tr>
+ <th>" . wfMsg( 'version-hook-name' ) . "</th>
+ <th>" . wfMsg( 'version-hook-subscribedby' ) . "</th>
+ </tr>\n";
+
+ foreach ( $myWgHooks as $hook => $hooks )
+ $ret .= "<tr>
+ <td>$hook</td>
+ <td>" . $this->listToText( $hooks ) . "</td>
+ </tr>\n";
+
+ $ret .= Xml::closeElement( 'table' );
+ return $ret;
+ } else
+ return '';
+ }
+
+ private function openExtType($text, $name = null) {
+ $opt = array( 'colspan' => 3 );
+ $out = '';
+
+ if(!$this->firstExtOpened) {
+ // Insert a spacing line
+ $out .= '<tr class="sv-space">' . Xml::element( 'td', $opt ) . "</tr>\n";
+ }
+ $this->firstExtOpened = false;
+
+ if($name) { $opt['id'] = "sv-$name"; }
+
+ $out .= "<tr>" . Xml::element( 'th', $opt, $text) . "</tr>\n";
+ return $out;
+ }
+
+ /**
+ * @static
+ *
+ * @return string
+ */
+ function IPInfo() {
+ $ip = str_replace( '--', ' - ', htmlspecialchars( wfGetIP() ) );
+ return "<!-- visited from $ip -->\n" .
+ "<span style='display:none'>visited from $ip</span>";
+ }
+
+ /**
+ * @param array $list
+ * @return string
+ */
+ function listToText( $list ) {
+ $cnt = count( $list );
+
+ if ( $cnt == 1 ) {
+ // Enforce always returning a string
+ return (string)$this->arrayToString( $list[0] );
+ } elseif ( $cnt == 0 ) {
+ return '';
+ } else {
+ sort( $list );
+ $t = array_slice( $list, 0, $cnt - 1 );
+ $one = array_map( array( &$this, 'arrayToString' ), $t );
+ $two = $this->arrayToString( $list[$cnt - 1] );
+ $and = wfMsg( 'and' );
+
+ return implode( ', ', $one ) . " $and $two";
+ }
+ }
+
+ /**
+ * @static
+ *
+ * @param mixed $list Will convert an array to string if given and return
+ * the paramater unaltered otherwise
+ * @return mixed
+ */
+ function arrayToString( $list ) {
+ if( is_object( $list ) ) {
+ $class = get_class( $list );
+ return "($class)";
+ } elseif ( ! is_array( $list ) ) {
+ return $list;
+ } else {
+ $class = get_class( $list[0] );
+ return "($class, {$list[1]})";
+ }
+ }
+
+ /**
+ * Retrieve the revision number of a Subversion working directory.
+ *
+ * @param string $dir
+ * @return mixed revision number as int, or false if not a SVN checkout
+ */
+ public static function getSvnRevision( $dir ) {
+ // http://svnbook.red-bean.com/nightly/en/svn.developer.insidewc.html
+ $entries = $dir . '/.svn/entries';
+
+ if( !file_exists( $entries ) ) {
+ return false;
+ }
+
+ $content = file( $entries );
+
+ // check if file is xml (subversion release <= 1.3) or not (subversion release = 1.4)
+ if( preg_match( '/^<\?xml/', $content[0] ) ) {
+ // subversion is release <= 1.3
+ if( !function_exists( 'simplexml_load_file' ) ) {
+ // We could fall back to expat... YUCK
+ return false;
+ }
+
+ // SimpleXml whines about the xmlns...
+ wfSuppressWarnings();
+ $xml = simplexml_load_file( $entries );
+ wfRestoreWarnings();
+
+ if( $xml ) {
+ foreach( $xml->entry as $entry ) {
+ if( $xml->entry[0]['name'] == '' ) {
+ // The directory entry should always have a revision marker.
+ if( $entry['revision'] ) {
+ return intval( $entry['revision'] );
+ }
+ }
+ }
+ }
+ return false;
+ } else {
+ // subversion is release 1.4
+ return intval( $content[3] );
+ }
+ }
+
+ /**#@-*/
+}
+
+/**#@-*/