includes/specials/SpecialVersion.php

   1 <?php
   2 /**
   3  * Implements Special:Version
   4  *
   5  * Copyright © 2005 Ævar Arnfjörð Bjarmason
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  20  * http://www.gnu.org/copyleft/gpl.html
  21  *
  22  * @file
  23  * @ingroup SpecialPage
  24  */
  25
  26 /**
  27  * Give information about the version of MediaWiki, PHP, the DB and extensions
  28  *
  29  * @ingroup SpecialPage
  30  */
  31 class SpecialVersion extends SpecialPage {
  32         protected $firstExtOpened = false;
  33
  34         /**
  35          * Stores the current rev id/SHA hash of MediaWiki core
  36          */
  37         protected $coreId = '';
  38
  39         protected static $extensionTypes = false;
  40
  41         protected static $viewvcUrls = array(
  42                 'svn+ssh://svn.wikimedia.org/svnroot/mediawiki' => 'http://svn.wikimedia.org/viewvc/mediawiki',
  43                 'http://svn.wikimedia.org/svnroot/mediawiki' => 'http://svn.wikimedia.org/viewvc/mediawiki',
  44                 'https://svn.wikimedia.org/svnroot/mediawiki' => 'https://svn.wikimedia.org/viewvc/mediawiki',
  45         );
  46
  47         public function __construct() {
  48                 parent::__construct( 'Version' );
  49         }
  50
  51         /**
  52          * main()
  53          * @param string|null $par
  54          */
  55         public function execute( $par ) {
  56                 global $IP, $wgExtensionCredits;
  57
  58                 $this->setHeaders();
  59                 $this->outputHeader();
  60                 $out = $this->getOutput();
  61                 $out->allowClickjacking();
  62
  63                 // Explode the sub page information into useful bits
  64                 $parts = explode( '/', (string)$par );
  65                 $extNode = null;
  66                 if ( isset( $parts[1] ) ) {
  67                         $extName = str_replace( '_', ' ', $parts[1] );
  68                         // Find it!
  69                         foreach ( $wgExtensionCredits as $group => $extensions ) {
  70                                 foreach ( $extensions as $ext ) {
  71                                         if ( isset( $ext['name'] ) && ( $ext['name'] === $extName ) ) {
  72                                                 $extNode = &$ext;
  73                                                 break 2;
  74                                         }
  75                                 }
  76                         }
  77                         if ( !$extNode ) {
  78                                 $out->setStatusCode( 404 );
  79                         }
  80                 } else {
  81                         $extName = 'MediaWiki';
  82                 }
  83
  84                 // Now figure out what to do
  85                 switch ( strtolower( $parts[0] ) ) {
  86                         case 'credits':
  87                                 $wikiText = '{{int:version-credits-not-found}}';
  88                                 if ( $extName === 'MediaWiki' ) {
  89                                         $wikiText = file_get_contents( $IP . '/CREDITS' );
  90                                 } elseif ( ( $extNode !== null ) && isset( $extNode['path'] ) ) {
  91                                         $file = $this->getExtAuthorsFileName( dirname( $extNode['path'] ) );
  92                                         if ( $file ) {
  93                                                 $wikiText = file_get_contents( $file );
  94                                                 if ( substr( $file, -4 ) === '.txt' ) {
  95                                                         $wikiText = Html::element( 'pre', array(), $wikiText );
  96                                                 }
  97                                         }
  98                                 }
  99
 100                                 $out->setPageTitle( $this->msg( 'version-credits-title', $extName ) );
 101                                 $out->addWikiText( $wikiText );
 102                                 break;
 103
 104                         case 'license':
 105                                 $wikiText = '{{int:version-license-not-found}}';
 106                                 if ( $extName === 'MediaWiki' ) {
 107                                         $wikiText = file_get_contents( $IP . '/COPYING' );
 108                                 } elseif ( ( $extNode !== null ) && isset( $extNode['path'] ) ) {
 109                                         $file = $this->getExtLicenseFileName( dirname( $extNode['path'] ) );
 110                                         if ( $file ) {
 111                                                 $wikiText = file_get_contents( $file );
 112                                                 if ( !isset( $extNode['license-name'] ) ) {
 113                                                         // If the developer did not explicitly set license-name they probably
 114                                                         // are unaware that we're now sucking this file in and thus it's probably
 115                                                         // not wikitext friendly.
 116                                                         $wikiText = "<pre>$wikiText</pre>";
 117                                                 }
 118                                         }
 119                                 }
 120
 121                                 $out->setPageTitle( $this->msg( 'version-license-title', $extName ) );
 122                                 $out->addWikiText( $wikiText );
 123                                 break;
 124
 125                         default:
 126                                 $out->addModules( 'mediawiki.special.version' );
 127                                 $out->addWikiText(
 128                                         $this->getMediaWikiCredits() .
 129                                         $this->softwareInformation() .
 130                                         $this->getEntryPointInfo()
 131                                 );
 132                                 $out->addHtml(
 133                                         $this->getSkinCredits() .
 134                                         $this->getExtensionCredits() .
 135                                         $this->getExternalLibraries() .
 136                                         $this->getParserTags() .
 137                                         $this->getParserFunctionHooks()
 138                                 );
 139                                 $out->addWikiText( $this->getWgHooks() );
 140                                 $out->addHTML( $this->IPInfo() );
 141
 142                                 break;
 143                 }
 144         }
 145
 146         /**
 147          * Returns wiki text showing the license information.
 148          *
 149          * @return string
 150          */
 151         private static function getMediaWikiCredits() {
 152                 $ret = Xml::element(
 153                         'h2',
 154                         array( 'id' => 'mw-version-license' ),
 155                         wfMessage( 'version-license' )->text()
 156                 );
 157
 158                 // This text is always left-to-right.
 159                 $ret .= '<div class="plainlinks">';
 160                 $ret .= "__NOTOC__
 161                 " . self::getCopyrightAndAuthorList() . "\n
 162                 " . wfMessage( 'version-license-info' )->text();
 163                 $ret .= '</div>';
 164
 165                 return str_replace( "\t\t", '', $ret ) . "\n";
 166         }
 167
 168         /**
 169          * Get the "MediaWiki is copyright 2001-20xx by lots of cool guys" text
 170          *
 171          * @return string
 172          */
 173         public static function getCopyrightAndAuthorList() {
 174                 global $wgLang;
 175
 176                 if ( defined( 'MEDIAWIKI_INSTALL' ) ) {
 177                         $othersLink = '[//www.mediawiki.org/wiki/Special:Version/Credits ' .
 178                                 wfMessage( 'version-poweredby-others' )->text() . ']';
 179                 } else {
 180                         $othersLink = '[[Special:Version/Credits|' .
 181                                 wfMessage( 'version-poweredby-others' )->text() . ']]';
 182                 }
 183
 184                 $translatorsLink = '[//translatewiki.net/wiki/Translating:MediaWiki/Credits ' .
 185                         wfMessage( 'version-poweredby-translators' )->text() . ']';
 186
 187                 $authorList = array(
 188                         'Magnus Manske', 'Brion Vibber', 'Lee Daniel Crocker',
 189                         'Tim Starling', 'Erik Möller', 'Gabriel Wicke', 'Ævar Arnfjörð Bjarmason',
 190                         'Niklas Laxström', 'Domas Mituzas', 'Rob Church', 'Yuri Astrakhan',
 191                         'Aryeh Gregor', 'Aaron Schulz', 'Andrew Garrett', 'Raimond Spekking',
 192                         'Alexandre Emsenhuber', 'Siebrand Mazeland', 'Chad Horohoe',
 193                         'Roan Kattouw', 'Trevor Parscal', 'Bryan Tong Minh', 'Sam Reed',
 194                         'Victor Vasiliev', 'Rotem Liss', 'Platonides', 'Antoine Musso',
 195                         'Timo Tijhof', 'Daniel Kinzler', 'Jeroen De Dauw', 'Brad Jorsch',
 196                         $othersLink, $translatorsLink
 197                 );
 198
 199                 return wfMessage( 'version-poweredby-credits', MWTimestamp::getLocalInstance()->format( 'Y' ),
 200                         $wgLang->listToText( $authorList ) )->text();
 201         }
 202
 203         /**
 204          * Returns wiki text showing the third party software versions (apache, php, mysql).
 205          *
 206          * @return string
 207          */
 208         public static function softwareInformation() {
 209                 $dbr = wfGetDB( DB_SLAVE );
 210
 211                 // Put the software in an array of form 'name' => 'version'. All messages should
 212                 // be loaded here, so feel free to use wfMessage in the 'name'. Raw HTML or
 213                 // wikimarkup can be used.
 214                 $software = array();
 215                 $software['[https://www.mediawiki.org/ MediaWiki]'] = self::getVersionLinked();
 216                 if ( wfIsHHVM() ) {
 217                         $software['[http://hhvm.com/ HHVM]'] = HHVM_VERSION . " (" . PHP_SAPI . ")";
 218                 } else {
 219                         $software['[https://php.net/ PHP]'] = PHP_VERSION . " (" . PHP_SAPI . ")";
 220                 }
 221                 $software[$dbr->getSoftwareLink()] = $dbr->getServerInfo();
 222
 223                 // Allow a hook to add/remove items.
 224                 Hooks::run( 'SoftwareInfo', array( &$software ) );
 225
 226                 $out = Xml::element(
 227                                 'h2',
 228                                 array( 'id' => 'mw-version-software' ),
 229                                 wfMessage( 'version-software' )->text()
 230                         ) .
 231                                 Xml::openElement( 'table', array( 'class' => 'wikitable plainlinks', 'id' => 'sv-software' ) ) .
 232                                 "<tr>
 233                                         <th>" . wfMessage( 'version-software-product' )->text() . "</th>
 234                                         <th>" . wfMessage( 'version-software-version' )->text() . "</th>
 235                                 </tr>\n";
 236
 237                 foreach ( $software as $name => $version ) {
 238                         $out .= "<tr>
 239                                         <td>" . $name . "</td>
 240                                         <td dir=\"ltr\">" . $version . "</td>
 241                                 </tr>\n";
 242                 }
 243
 244                 return $out . Xml::closeElement( 'table' );
 245         }
 246
 247         /**
 248          * Return a string of the MediaWiki version with SVN revision if available.
 249          *
 250          * @param string $flags
 251          * @return mixed
 252          */
 253         public static function getVersion( $flags = '' ) {
 254                 global $wgVersion, $IP;
 255
 256                 $gitInfo = self::getGitHeadSha1( $IP );
 257                 $svnInfo = self::getSvnInfo( $IP );
 258                 if ( !$svnInfo && !$gitInfo ) {
 259                         $version = $wgVersion;
 260                 } elseif ( $gitInfo && $flags === 'nodb' ) {
 261                         $shortSha1 = substr( $gitInfo, 0, 7 );
 262                         $version = "$wgVersion ($shortSha1)";
 263                 } elseif ( $gitInfo ) {
 264                         $shortSha1 = substr( $gitInfo, 0, 7 );
 265                         $shortSha1 = wfMessage( 'parentheses' )->params( $shortSha1 )->escaped();
 266                         $version = "$wgVersion $shortSha1";
 267                 } elseif ( $flags === 'nodb' ) {
 268                         $version = "$wgVersion (r{$svnInfo['checkout-rev']})";
 269                 } else {
 270                         $version = $wgVersion . ' ' .
 271                                 wfMessage(
 272                                         'version-svn-revision',
 273                                         isset( $info['directory-rev'] ) ? $info['directory-rev'] : '',
 274                                         $info['checkout-rev']
 275                                 )->text();
 276                 }
 277
 278
 279                 return $version;
 280         }
 281
 282         /**
 283          * Return a wikitext-formatted string of the MediaWiki version with a link to
 284          * the SVN revision or the git SHA1 of head if available.
 285          * Git is prefered over Svn
 286          * The fallback is just $wgVersion
 287          *
 288          * @return mixed
 289          */
 290         public static function getVersionLinked() {
 291                 global $wgVersion;
 292
 293                 $gitVersion = self::getVersionLinkedGit();
 294                 if ( $gitVersion ) {
 295                         $v = $gitVersion;
 296                 } else {
 297                         $svnVersion = self::getVersionLinkedSvn();
 298                         if ( $svnVersion ) {
 299                                 $v = $svnVersion;
 300                         } else {
 301                                 $v = $wgVersion; // fallback
 302                         }
 303                 }
 304
 305
 306                 return $v;
 307         }
 308
 309         /**
 310          * @return string Global wgVersion + a link to subversion revision of svn BASE
 311          */
 312         private static function getVersionLinkedSvn() {
 313                 global $IP;
 314
 315                 $info = self::getSvnInfo( $IP );
 316                 if ( !isset( $info['checkout-rev'] ) ) {
 317                         return false;
 318                 }
 319
 320                 $linkText = wfMessage(
 321                         'version-svn-revision',
 322                         isset( $info['directory-rev'] ) ? $info['directory-rev'] : '',
 323                         $info['checkout-rev']
 324                 )->text();
 325
 326                 if ( isset( $info['viewvc-url'] ) ) {
 327                         $version = "[{$info['viewvc-url']} $linkText]";
 328                 } else {
 329                         $version = $linkText;
 330                 }
 331
 332                 return self::getwgVersionLinked() . " $version";
 333         }
 334
 335         /**
 336          * @return string
 337          */
 338         private static function getwgVersionLinked() {
 339                 global $wgVersion;
 340                 $versionUrl = "";
 341                 if ( Hooks::run( 'SpecialVersionVersionUrl', array( $wgVersion, &$versionUrl ) ) ) {
 342                         $versionParts = array();
 343                         preg_match( "/^(\d+\.\d+)/", $wgVersion, $versionParts );
 344                         $versionUrl = "https://www.mediawiki.org/wiki/MediaWiki_{$versionParts[1]}";
 345                 }
 346
 347                 return "[$versionUrl $wgVersion]";
 348         }
 349
 350         /**
 351          * @since 1.22 Returns the HEAD date in addition to the sha1 and link
 352          * @return bool|string Global wgVersion + HEAD sha1 stripped to the first 7 chars
 353          *   with link and date, or false on failure
 354          */
 355         private static function getVersionLinkedGit() {
 356                 global $IP, $wgLang;
 357
 358                 $gitInfo = new GitInfo( $IP );
 359                 $headSHA1 = $gitInfo->getHeadSHA1();
 360                 if ( !$headSHA1 ) {
 361                         return false;
 362                 }
 363
 364                 $shortSHA1 = '(' . substr( $headSHA1, 0, 7 ) . ')';
 365
 366                 $gitHeadUrl = $gitInfo->getHeadViewUrl();
 367                 if ( $gitHeadUrl !== false ) {
 368                         $shortSHA1 = "[$gitHeadUrl $shortSHA1]";
 369                 }
 370
 371                 $gitHeadCommitDate = $gitInfo->getHeadCommitDate();
 372                 if ( $gitHeadCommitDate ) {
 373                         $shortSHA1 .= Html::element( 'br' ) . $wgLang->timeanddate( $gitHeadCommitDate, true );
 374                 }
 375
 376                 return self::getwgVersionLinked() . " $shortSHA1";
 377         }
 378
 379         /**
 380          * Returns an array with the base extension types.
 381          * Type is stored as array key, the message as array value.
 382          *
 383          * TODO: ideally this would return all extension types.
 384          *
 385          * @since 1.17
 386          *
 387          * @return array
 388          */
 389         public static function getExtensionTypes() {
 390                 if ( self::$extensionTypes === false ) {
 391                         self::$extensionTypes = array(
 392                                 'specialpage' => wfMessage( 'version-specialpages' )->text(),
 393                                 'parserhook' => wfMessage( 'version-parserhooks' )->text(),
 394                                 'variable' => wfMessage( 'version-variables' )->text(),
 395                                 'media' => wfMessage( 'version-mediahandlers' )->text(),
 396                                 'antispam' => wfMessage( 'version-antispam' )->text(),
 397                                 'skin' => wfMessage( 'version-skins' )->text(),
 398                                 'api' => wfMessage( 'version-api' )->text(),
 399                                 'other' => wfMessage( 'version-other' )->text(),
 400                         );
 401
 402                         Hooks::run( 'ExtensionTypes', array( &self::$extensionTypes ) );
 403                 }
 404
 405                 return self::$extensionTypes;
 406         }
 407
 408         /**
 409          * Returns the internationalized name for an extension type.
 410          *
 411          * @since 1.17
 412          *
 413          * @param string $type
 414          *
 415          * @return string
 416          */
 417         public static function getExtensionTypeName( $type ) {
 418                 $types = self::getExtensionTypes();
 419
 420                 return isset( $types[$type] ) ? $types[$type] : $types['other'];
 421         }
 422
 423         /**
 424          * Generate wikitext showing the name, URL, author and description of each extension.
 425          *
 426          * @return string Wikitext
 427          */
 428         public function getExtensionCredits() {
 429                 global $wgExtensionCredits;
 430
 431                 if (
 432                         count( $wgExtensionCredits ) === 0 ||
 433                         // Skins are displayed separately, see getSkinCredits()
 434                         ( count( $wgExtensionCredits ) === 1 && isset( $wgExtensionCredits['skin'] ) )
 435                 ) {
 436                         return '';
 437                 }
 438
 439                 $extensionTypes = self::getExtensionTypes();
 440
 441                 $out = Xml::element(
 442                                 'h2',
 443                                 array( 'id' => 'mw-version-ext' ),
 444                                 $this->msg( 'version-extensions' )->text()
 445                         ) .
 446                         Xml::openElement( 'table', array( 'class' => 'wikitable plainlinks', 'id' => 'sv-ext' ) );
 447
 448                 // Make sure the 'other' type is set to an array.
 449                 if ( !array_key_exists( 'other', $wgExtensionCredits ) ) {
 450                         $wgExtensionCredits['other'] = array();
 451                 }
 452
 453                 // Find all extensions that do not have a valid type and give them the type 'other'.
 454                 foreach ( $wgExtensionCredits as $type => $extensions ) {
 455                         if ( !array_key_exists( $type, $extensionTypes ) ) {
 456                                 $wgExtensionCredits['other'] = array_merge( $wgExtensionCredits['other'], $extensions );
 457                         }
 458                 }
 459
 460                 $this->firstExtOpened = false;
 461                 // Loop through the extension categories to display their extensions in the list.
 462                 foreach ( $extensionTypes as $type => $message ) {
 463                         // Skins have a separate section
 464                         if ( $type !== 'other' && $type !== 'skin' ) {
 465                                 $out .= $this->getExtensionCategory( $type, $message );
 466                         }
 467                 }
 468
 469                 // We want the 'other' type to be last in the list.
 470                 $out .= $this->getExtensionCategory( 'other', $extensionTypes['other'] );
 471
 472                 $out .= Xml::closeElement( 'table' );
 473
 474                 return $out;
 475         }
 476
 477         /**
 478          * Generate wikitext showing the name, URL, author and description of each skin.
 479          *
 480          * @return string Wikitext
 481          */
 482         public function getSkinCredits() {
 483                 global $wgExtensionCredits;
 484                 if ( !isset( $wgExtensionCredits['skin'] ) || count( $wgExtensionCredits['skin'] ) === 0 ) {
 485                         return '';
 486                 }
 487
 488                 $out = Xml::element(
 489                                 'h2',
 490                                 array( 'id' => 'mw-version-skin' ),
 491                                 $this->msg( 'version-skins' )->text()
 492                         ) .
 493                         Xml::openElement( 'table', array( 'class' => 'wikitable plainlinks', 'id' => 'sv-skin' ) );
 494
 495                 $this->firstExtOpened = false;
 496                 $out .= $this->getExtensionCategory( 'skin', null );
 497
 498                 $out .= Xml::closeElement( 'table' );
 499
 500                 return $out;
 501         }
 502
 503         /**
 504          * Generate an HTML table for external libraries that are installed
 505          *
 506          * @return string
 507          */
 508         protected function getExternalLibraries() {
 509                 global $IP;
 510                 $path = "$IP/composer.lock";
 511                 if ( !file_exists( $path ) ) {
 512                         // Maybe they're using mediawiki/vendor?
 513                         $path = "$IP/vendor/composer.lock";
 514                         if ( !file_exists( $path ) ) {
 515                                 return '';
 516                         }
 517                 }
 518
 519                 $lock = new ComposerLock( $path );
 520                 $out = Html::element(
 521                         'h2',
 522                         array( 'id' => 'mw-version-libraries' ),
 523                         $this->msg( 'version-libraries' )->text()
 524                 );
 525                 $out .= Html::openElement( 'table', array( 'class' => 'wikitable plainlinks', 'id' => 'sv-libraries' ) );
 526                 $out .= Html::openElement( 'tr' )
 527                         . Html::element( 'th', array(), $this->msg( 'version-libraries-library' )->text() )
 528                         . Html::element( 'th', array(), $this->msg( 'version-libraries-version' )->text() )
 529                         . Html::closeElement( 'tr' );
 530
 531                 foreach ( $lock->getInstalledDependencies() as $name => $info ) {
 532                         if ( strpos( $info['type'], 'mediawiki-' ) === 0 ) {
 533                                 // Skip any extensions or skins since they'll be listed
 534                                 // in their proper section
 535                                 continue;
 536                         }
 537                         $out .= Html::openElement( 'tr' )
 538                                 . Html::rawElement( 'td', array(), Linker::makeExternalLink( "https://packagist.org/packages/$name", $name ) )
 539                                 . Html::element( 'td', array(), $info['version'] )
 540                                 . Html::closeElement( 'tr' );
 541                 }
 542                 $out .= Html::closeElement( 'table' );
 543
 544                 return $out;
 545         }
 546
 547         /**
 548          * Obtains a list of installed parser tags and the associated H2 header
 549          *
 550          * @return string HTML output
 551          */
 552         protected function getParserTags() {
 553                 global $wgParser;
 554
 555                 $tags = $wgParser->getTags();
 556
 557                 if ( count( $tags ) ) {
 558                         $out = Html::rawElement(
 559                                 'h2',
 560                                 array( 'class' => 'mw-headline' ),
 561                                 Linker::makeExternalLink(
 562                                         '//www.mediawiki.org/wiki/Special:MyLanguage/Manual:Tag_extensions',
 563                                         $this->msg( 'version-parser-extensiontags' )->parse(),
 564                                         false /* msg()->parse() already escapes */
 565                                 )
 566                         );
 567
 568                         array_walk( $tags, function ( &$value ) {
 569                                 // Bidirectional isolation improves readability in RTL wikis
 570                                 $value = Html::element(
 571                                         'bdi',
 572                                         // Prevent < and > from slipping to another line
 573                                         array(
 574                                                 'style' => 'white-space: nowrap;',
 575                                         ),
 576                                         "<$value>"
 577                                 );
 578                         } );
 579
 580                         $out .= $this->listToText( $tags );
 581                 } else {
 582                         $out = '';
 583                 }
 584
 585                 return $out;
 586         }
 587
 588         /**
 589          * Obtains a list of installed parser function hooks and the associated H2 header
 590          *
 591          * @return string HTML output
 592          */
 593         protected function getParserFunctionHooks() {
 594                 global $wgParser;
 595
 596                 $fhooks = $wgParser->getFunctionHooks();
 597                 if ( count( $fhooks ) ) {
 598                         $out = Html::rawElement( 'h2', array( 'class' => 'mw-headline' ), Linker::makeExternalLink(
 599                                 '//www.mediawiki.org/wiki/Special:MyLanguage/Manual:Parser_functions',
 600                                 $this->msg( 'version-parser-function-hooks' )->parse(),
 601                                 false /* msg()->parse() already escapes */
 602                         ) );
 603
 604                         $out .= $this->listToText( $fhooks );
 605                 } else {
 606                         $out = '';
 607                 }
 608
 609                 return $out;
 610         }
 611
 612         /**
 613          * Creates and returns the HTML for a single extension category.
 614          *
 615          * @since 1.17
 616          *
 617          * @param string $type
 618          * @param string $message
 619          *
 620          * @return string
 621          */
 622         protected function getExtensionCategory( $type, $message ) {
 623                 global $wgExtensionCredits;
 624
 625                 $out = '';
 626
 627                 if ( array_key_exists( $type, $wgExtensionCredits ) && count( $wgExtensionCredits[$type] ) > 0 ) {
 628                         $out .= $this->openExtType( $message, 'credits-' . $type );
 629
 630                         usort( $wgExtensionCredits[$type], array( $this, 'compare' ) );
 631
 632                         foreach ( $wgExtensionCredits[$type] as $extension ) {
 633                                 $out .= $this->getCreditsForExtension( $extension );
 634                         }
 635                 }
 636
 637                 return $out;
 638         }
 639
 640         /**
 641          * Callback to sort extensions by type.
 642          * @param array $a
 643          * @param array $b
 644          * @return int
 645          */
 646         public function compare( $a, $b ) {
 647                 if ( $a['name'] === $b['name'] ) {
 648                         return 0;
 649                 } else {
 650                         return $this->getLanguage()->lc( $a['name'] ) > $this->getLanguage()->lc( $b['name'] )
 651                                 ? 1
 652                                 : -1;
 653                 }
 654         }
 655
 656         /**
 657          * Creates and formats a version line for a single extension.
 658          *
 659          * Information for five columns will be created. Parameters required in the
 660          * $extension array for part rendering are indicated in ()
 661          *  - The name of (name), and URL link to (url), the extension
 662          *  - Official version number (version) and if available version control system
 663          *    revision (path), link, and date
 664          *  - If available the short name of the license (license-name) and a linke
 665          *    to ((LICENSE)|(COPYING))(\.txt)? if it exists.
 666          *  - Description of extension (descriptionmsg or description)
 667          *  - List of authors (author) and link to a ((AUTHORS)|(CREDITS))(\.txt)? file if it exists
 668          *
 669          * @param array $extension
 670          *
 671          * @return string Raw HTML
 672          */
 673         public function getCreditsForExtension( array $extension ) {
 674                 $out = $this->getOutput();
 675
 676                 // We must obtain the information for all the bits and pieces!
 677                 // ... such as extension names and links
 678                 if ( isset( $extension['namemsg'] ) ) {
 679                         // Localized name of extension
 680                         $extensionName = $this->msg( $extension['namemsg'] )->text();
 681                 } elseif ( isset( $extension['name'] ) ) {
 682                         // Non localized version
 683                         $extensionName = $extension['name'];
 684                 } else {
 685                         $extensionName = $this->msg( 'version-no-ext-name' )->text();
 686                 }
 687
 688                 if ( isset( $extension['url'] ) ) {
 689                         $extensionNameLink = Linker::makeExternalLink(
 690                                 $extension['url'],
 691                                 $extensionName,
 692                                 true,
 693                                 '',
 694                                 array( 'class' => 'mw-version-ext-name' )
 695                         );
 696                 } else {
 697                         $extensionNameLink = $extensionName;
 698                 }
 699
 700                 // ... and the version information
 701                 // If the extension path is set we will check that directory for GIT and SVN
 702                 // metadata in an attempt to extract date and vcs commit metadata.
 703                 $canonicalVersion = '&ndash;';
 704                 $extensionPath = null;
 705                 $vcsVersion = null;
 706                 $vcsLink = null;
 707                 $vcsDate = null;
 708
 709                 if ( isset( $extension['version'] ) ) {
 710                         $canonicalVersion = $out->parseInline( $extension['version'] );
 711                 }
 712
 713                 if ( isset( $extension['path'] ) ) {
 714                         global $IP;
 715                         $extensionPath = dirname( $extension['path'] );
 716                         if ( $this->coreId == '' ) {
 717                                 wfDebug( 'Looking up core head id' );
 718                                 $coreHeadSHA1 = self::getGitHeadSha1( $IP );
 719                                 if ( $coreHeadSHA1 ) {
 720                                         $this->coreId = $coreHeadSHA1;
 721                                 } else {
 722                                         $svnInfo = self::getSvnInfo( $IP );
 723                                         if ( $svnInfo !== false ) {
 724                                                 $this->coreId = $svnInfo['checkout-rev'];
 725                                         }
 726                                 }
 727                         }
 728                         $cache = wfGetCache( CACHE_ANYTHING );
 729                         $memcKey = wfMemcKey( 'specialversion-ext-version-text', $extension['path'], $this->coreId );
 730                         list( $vcsVersion, $vcsLink, $vcsDate ) = $cache->get( $memcKey );
 731
 732                         if ( !$vcsVersion ) {
 733                                 wfDebug( "Getting VCS info for extension {$extension['name']}" );
 734                                 $gitInfo = new GitInfo( $extensionPath );
 735                                 $vcsVersion = $gitInfo->getHeadSHA1();
 736                                 if ( $vcsVersion !== false ) {
 737                                         $vcsVersion = substr( $vcsVersion, 0, 7 );
 738                                         $vcsLink = $gitInfo->getHeadViewUrl();
 739                                         $vcsDate = $gitInfo->getHeadCommitDate();
 740                                 } else {
 741                                         $svnInfo = self::getSvnInfo( $extensionPath );
 742                                         if ( $svnInfo !== false ) {
 743                                                 $vcsVersion = $this->msg( 'version-svn-revision', $svnInfo['checkout-rev'] )->text();
 744                                                 $vcsLink = isset( $svnInfo['viewvc-url'] ) ? $svnInfo['viewvc-url'] : '';
 745                                         }
 746                                 }
 747                                 $cache->set( $memcKey, array( $vcsVersion, $vcsLink, $vcsDate ), 60 * 60 * 24 );
 748                         } else {
 749                                 wfDebug( "Pulled VCS info for extension {$extension['name']} from cache" );
 750                         }
 751                 }
 752
 753                 $versionString = Html::rawElement(
 754                         'span',
 755                         array( 'class' => 'mw-version-ext-version' ),
 756                         $canonicalVersion
 757                 );
 758
 759                 if ( $vcsVersion ) {
 760                         if ( $vcsLink ) {
 761                                 $vcsVerString = Linker::makeExternalLink(
 762                                         $vcsLink,
 763                                         $this->msg( 'version-version', $vcsVersion ),
 764                                         true,
 765                                         '',
 766                                         array( 'class' => 'mw-version-ext-vcs-version' )
 767                                 );
 768                         } else {
 769                                 $vcsVerString = Html::element( 'span',
 770                                         array( 'class' => 'mw-version-ext-vcs-version' ),
 771                                         "({$vcsVersion})"
 772                                 );
 773                         }
 774                         $versionString .= " {$vcsVerString}";
 775
 776                         if ( $vcsDate ) {
 777                                 $vcsTimeString = Html::element( 'span',
 778                                         array( 'class' => 'mw-version-ext-vcs-timestamp' ),
 779                                         $this->getLanguage()->timeanddate( $vcsDate, true )
 780                                 );
 781                                 $versionString .= " {$vcsTimeString}";
 782                         }
 783                         $versionString = Html::rawElement( 'span',
 784                                 array( 'class' => 'mw-version-ext-meta-version' ),
 785                                 $versionString
 786                         );
 787                 }
 788
 789                 // ... and license information; if a license file exists we
 790                 // will link to it
 791                 $licenseLink = '';
 792                 if ( isset( $extension['name'] ) ) {
 793                         $licenseName = null;
 794                         if ( isset( $extension['license-name'] ) ) {
 795                                 $licenseName = $out->parseInline( $extension['license-name'] );
 796                         } elseif ( $this->getExtLicenseFileName( $extensionPath ) ) {
 797                                 $licenseName = $this->msg( 'version-ext-license' );
 798                         }
 799                         if ( $licenseName !== null ) {
 800                                 $licenseLink = Linker::link(
 801                                         $this->getPageTitle( 'License/' . $extension['name'] ),
 802                                         $licenseName,
 803                                         array(
 804                                                 'class' => 'mw-version-ext-license',
 805                                                 'dir' => 'auto',
 806                                         )
 807                                 );
 808                         }
 809                 }
 810
 811                 // ... and generate the description; which can be a parameterized l10n message
 812                 // in the form array( <msgname>, <parameter>, <parameter>... ) or just a straight
 813                 // up string
 814                 if ( isset( $extension['descriptionmsg'] ) ) {
 815                         // Localized description of extension
 816                         $descriptionMsg = $extension['descriptionmsg'];
 817
 818                         if ( is_array( $descriptionMsg ) ) {
 819                                 $descriptionMsgKey = $descriptionMsg[0]; // Get the message key
 820                                 array_shift( $descriptionMsg ); // Shift out the message key to get the parameters only
 821                                 array_map( "htmlspecialchars", $descriptionMsg ); // For sanity
 822                                 $description = $this->msg( $descriptionMsgKey, $descriptionMsg )->text();
 823                         } else {
 824                                 $description = $this->msg( $descriptionMsg )->text();
 825                         }
 826                 } elseif ( isset( $extension['description'] ) ) {
 827                         // Non localized version
 828                         $description = $extension['description'];
 829                 } else {
 830                         $description = '';
 831                 }
 832                 $description = $out->parseInline( $description );
 833
 834                 // ... now get the authors for this extension
 835                 $authors = isset( $extension['author'] ) ? $extension['author'] : array();
 836                 $authors = $this->listAuthors( $authors, $extension['name'], $extensionPath );
 837
 838                 // Finally! Create the table
 839                 $html = Html::openElement( 'tr', array(
 840                                 'class' => 'mw-version-ext',
 841                                 'id' => "mw-version-ext-{$extension['name']}"
 842                         )
 843                 );
 844
 845                 $html .= Html::rawElement( 'td', array(), $extensionNameLink );
 846                 $html .= Html::rawElement( 'td', array(), $versionString );
 847                 $html .= Html::rawElement( 'td', array(), $licenseLink );
 848                 $html .= Html::rawElement( 'td', array( 'class' => 'mw-version-ext-description' ), $description );
 849                 $html .= Html::rawElement( 'td', array( 'class' => 'mw-version-ext-authors' ), $authors );
 850
 851                 $html .= Html::closeElement( 'tr' );
 852
 853                 return $html;
 854         }
 855
 856         /**
 857          * Generate wikitext showing hooks in $wgHooks.
 858          *
 859          * @return string Wikitext
 860          */
 861         private function getWgHooks() {
 862                 global $wgSpecialVersionShowHooks, $wgHooks;
 863
 864                 if ( $wgSpecialVersionShowHooks && count( $wgHooks ) ) {
 865                         $myWgHooks = $wgHooks;
 866                         ksort( $myWgHooks );
 867
 868                         $ret = array();
 869                         $ret[] = '== {{int:version-hooks}} ==';
 870                         $ret[] = Html::openElement( 'table', array( 'class' => 'wikitable', 'id' => 'sv-hooks' ) );
 871                         $ret[] = Html::openElement( 'tr' );
 872                         $ret[] = Html::element( 'th', array(), $this->msg( 'version-hook-name' )->text() );
 873                         $ret[] = Html::element( 'th', array(), $this->msg( 'version-hook-subscribedby' )->text() );
 874                         $ret[] = Html::closeElement( 'tr' );
 875
 876                         foreach ( $myWgHooks as $hook => $hooks ) {
 877                                 $ret[] = Html::openElement( 'tr' );
 878                                 $ret[] = Html::element( 'td', array(), $hook );
 879                                 $ret[] = Html::element( 'td', array(), $this->listToText( $hooks ) );
 880                                 $ret[] = Html::closeElement( 'tr' );
 881                         }
 882
 883                         $ret[] = Html::closeElement( 'table' );
 884
 885                         return implode( "\n", $ret );
 886                 } else {
 887                         return '';
 888                 }
 889         }
 890
 891         private function openExtType( $text = null, $name = null ) {
 892                 $out = '';
 893
 894                 $opt = array( 'colspan' => 5 );
 895                 if ( $this->firstExtOpened ) {
 896                         // Insert a spacing line
 897                         $out .= Html::rawElement( 'tr', array( 'class' => 'sv-space' ),
 898                                 Html::element( 'td', $opt )
 899                         );
 900                 }
 901                 $this->firstExtOpened = true;
 902
 903                 if ( $name ) {
 904                         $opt['id'] = "sv-$name";
 905                 }
 906
 907                 if ( $text !== null ) {
 908                         $out .= Html::rawElement( 'tr', array(),
 909                                 Html::element( 'th', $opt, $text )
 910                         );
 911                 }
 912
 913                 $firstHeadingMsg = ( $name === 'credits-skin' )
 914                         ? 'version-skin-colheader-name'
 915                         : 'version-ext-colheader-name';
 916                 $out .= Html::openElement( 'tr' );
 917                 $out .= Html::element( 'th', array( 'class' => 'mw-version-ext-col-label' ),
 918                         $this->msg( $firstHeadingMsg )->text() );
 919                 $out .= Html::element( 'th', array( 'class' => 'mw-version-ext-col-label' ),
 920                         $this->msg( 'version-ext-colheader-version' )->text() );
 921                 $out .= Html::element( 'th', array( 'class' => 'mw-version-ext-col-label' ),
 922                         $this->msg( 'version-ext-colheader-license' )->text() );
 923                 $out .= Html::element( 'th', array( 'class' => 'mw-version-ext-col-label' ),
 924                         $this->msg( 'version-ext-colheader-description' )->text() );
 925                 $out .= Html::element( 'th', array( 'class' => 'mw-version-ext-col-label' ),
 926                         $this->msg( 'version-ext-colheader-credits' )->text() );
 927                 $out .= Html::closeElement( 'tr' );
 928
 929                 return $out;
 930         }
 931
 932         /**
 933          * Get information about client's IP address.
 934          *
 935          * @return string HTML fragment
 936          */
 937         private function IPInfo() {
 938                 $ip = str_replace( '--', ' - ', htmlspecialchars( $this->getRequest()->getIP() ) );
 939
 940                 return "<!-- visited from $ip -->\n<span style='display:none'>visited from $ip</span>";
 941         }
 942
 943         /**
 944          * Return a formatted unsorted list of authors
 945          *
 946          * 'And Others'
 947          *   If an item in the $authors array is '...' it is assumed to indicate an
 948          *   'and others' string which will then be linked to an ((AUTHORS)|(CREDITS))(\.txt)?
 949          *   file if it exists in $dir.
 950          *
 951          *   Similarly an entry ending with ' ...]' is assumed to be a link to an
 952          *   'and others' page.
 953          *
 954          *   If no '...' string variant is found, but an authors file is found an
 955          *   'and others' will be added to the end of the credits.
 956          *
 957          * @param string|array $authors
 958          * @param string $extName Name of the extension for link creation
 959          * @param string $extDir Path to the extension root directory
 960          *
 961          * @return string HTML fragment
 962          */
 963         public function listAuthors( $authors, $extName, $extDir ) {
 964                 $hasOthers = false;
 965
 966                 $list = array();
 967                 foreach ( (array)$authors as $item ) {
 968                         if ( $item == '...' ) {
 969                                 $hasOthers = true;
 970
 971                                 if ( $this->getExtAuthorsFileName( $extDir ) ) {
 972                                         $text = Linker::link(
 973                                                 $this->getPageTitle( "Credits/$extName" ),
 974                                                 $this->msg( 'version-poweredby-others' )->text()
 975                                         );
 976                                 } else {
 977                                         $text = $this->msg( 'version-poweredby-others' )->text();
 978                                 }
 979                                 $list[] = $text;
 980                         } elseif ( substr( $item, -5 ) == ' ...]' ) {
 981                                 $hasOthers = true;
 982                                 $list[] = $this->getOutput()->parseInline(
 983                                         substr( $item, 0, -4 ) . $this->msg( 'version-poweredby-others' )->text() . "]"
 984                                 );
 985                         } else {
 986                                 $list[] = $this->getOutput()->parseInline( $item );
 987                         }
 988                 }
 989
 990                 if ( !$hasOthers && $this->getExtAuthorsFileName( $extDir ) ) {
 991                         $list[] = $text = Linker::link(
 992                                 $this->getPageTitle( "Credits/$extName" ),
 993                                 $this->msg( 'version-poweredby-others' )->text()
 994                         );
 995                 }
 996
 997                 return $this->listToText( $list, false );
 998         }
 999
1000         /**
1001          * Obtains the full path of an extensions authors or credits file if
1002          * one exists.
1003          *
1004          * @param string $extDir Path to the extensions root directory
1005          *
1006          * @since 1.23
1007          *
1008          * @return bool|string False if no such file exists, otherwise returns
1009          * a path to it.
1010          */
1011         public static function getExtAuthorsFileName( $extDir ) {
1012                 if ( !$extDir ) {
1013                         return false;
1014                 }
1015
1016                 foreach ( scandir( $extDir ) as $file ) {
1017                         $fullPath = $extDir . DIRECTORY_SEPARATOR . $file;
1018                         if ( preg_match( '/^((AUTHORS)|(CREDITS))(\.txt)?$/', $file ) &&
1019                                 is_readable( $fullPath ) &&
1020                                 is_file( $fullPath )
1021                         ) {
1022                                 return $fullPath;
1023                         }
1024                 }
1025
1026                 return false;
1027         }
1028
1029         /**
1030          * Obtains the full path of an extensions copying or license file if
1031          * one exists.
1032          *
1033          * @param string $extDir Path to the extensions root directory
1034          *
1035          * @since 1.23
1036          *
1037          * @return bool|string False if no such file exists, otherwise returns
1038          * a path to it.
1039          */
1040         public static function getExtLicenseFileName( $extDir ) {
1041                 if ( !$extDir ) {
1042                         return false;
1043                 }
1044
1045                 foreach ( scandir( $extDir ) as $file ) {
1046                         $fullPath = $extDir . DIRECTORY_SEPARATOR . $file;
1047                         if ( preg_match( '/^((COPYING)|(LICENSE))(\.txt)?$/', $file ) &&
1048                                 is_readable( $fullPath ) &&
1049                                 is_file( $fullPath )
1050                         ) {
1051                                 return $fullPath;
1052                         }
1053                 }
1054
1055                 return false;
1056         }
1057
1058         /**
1059          * Convert an array of items into a list for display.
1060          *
1061          * @param array $list List of elements to display
1062          * @param bool $sort Whether to sort the items in $list
1063          *
1064          * @return string
1065          */
1066         public function listToText( $list, $sort = true ) {
1067                 if ( !count( $list ) ) {
1068                         return '';
1069                 }
1070                 if ( $sort ) {
1071                         sort( $list );
1072                 }
1073
1074                 return $this->getLanguage()
1075                         ->listToText( array_map( array( __CLASS__, 'arrayToString' ), $list ) );
1076         }
1077
1078         /**
1079          * Convert an array or object to a string for display.
1080          *
1081          * @param mixed $list Will convert an array to string if given and return
1082          *   the parameter unaltered otherwise
1083          *
1084          * @return mixed
1085          */
1086         public static function arrayToString( $list ) {
1087                 if ( is_array( $list ) && count( $list ) == 1 ) {
1088                         $list = $list[0];
1089                 }
1090                 if ( is_object( $list ) ) {
1091                         $class = wfMessage( 'parentheses' )->params( get_class( $list ) )->escaped();
1092
1093                         return $class;
1094                 } elseif ( !is_array( $list ) ) {
1095                         return $list;
1096                 } else {
1097                         if ( is_object( $list[0] ) ) {
1098                                 $class = get_class( $list[0] );
1099                         } else {
1100                                 $class = $list[0];
1101                         }
1102
1103                         return wfMessage( 'parentheses' )->params( "$class, {$list[1]}" )->escaped();
1104                 }
1105         }
1106
1107         /**
1108          * Get an associative array of information about a given path, from its .svn
1109          * subdirectory. Returns false on error, such as if the directory was not
1110          * checked out with subversion.
1111          *
1112          * Returned keys are:
1113          *    Required:
1114          *        checkout-rev          The revision which was checked out
1115          *    Optional:
1116          *        directory-rev         The revision when the directory was last modified
1117          *        url                   The subversion URL of the directory
1118          *        repo-url              The base URL of the repository
1119          *        viewvc-url            A ViewVC URL pointing to the checked-out revision
1120          * @param string $dir
1121          * @return array|bool
1122          */
1123         public static function getSvnInfo( $dir ) {
1124                 // http://svnbook.red-bean.com/nightly/en/svn.developer.insidewc.html
1125                 $entries = $dir . '/.svn/entries';
1126
1127                 if ( !file_exists( $entries ) ) {
1128                         return false;
1129                 }
1130
1131                 $lines = file( $entries );
1132                 if ( !count( $lines ) ) {
1133                         return false;
1134                 }
1135
1136                 // check if file is xml (subversion release <= 1.3) or not (subversion release = 1.4)
1137                 if ( preg_match( '/^<\?xml/', $lines[0] ) ) {
1138                         // subversion is release <= 1.3
1139                         if ( !function_exists( 'simplexml_load_file' ) ) {
1140                                 // We could fall back to expat... YUCK
1141                                 return false;
1142                         }
1143
1144                         // SimpleXml whines about the xmlns...
1145                         wfSuppressWarnings();
1146                         $xml = simplexml_load_file( $entries );
1147                         wfRestoreWarnings();
1148
1149                         if ( $xml ) {
1150                                 foreach ( $xml->entry as $entry ) {
1151                                         if ( $xml->entry[0]['name'] == '' ) {
1152                                                 // The directory entry should always have a revision marker.
1153                                                 if ( $entry['revision'] ) {
1154                                                         return array( 'checkout-rev' => intval( $entry['revision'] ) );
1155                                                 }
1156                                         }
1157                                 }
1158                         }
1159
1160                         return false;
1161                 }
1162
1163                 // Subversion is release 1.4 or above.
1164                 if ( count( $lines ) < 11 ) {
1165                         return false;
1166                 }
1167
1168                 $info = array(
1169                         'checkout-rev' => intval( trim( $lines[3] ) ),
1170                         'url' => trim( $lines[4] ),
1171                         'repo-url' => trim( $lines[5] ),
1172                         'directory-rev' => intval( trim( $lines[10] ) )
1173                 );
1174
1175                 if ( isset( self::$viewvcUrls[$info['repo-url']] ) ) {
1176                         $viewvc = str_replace(
1177                                 $info['repo-url'],
1178                                 self::$viewvcUrls[$info['repo-url']],
1179                                 $info['url']
1180                         );
1181
1182                         $viewvc .= '/?pathrev=';
1183                         $viewvc .= urlencode( $info['checkout-rev'] );
1184                         $info['viewvc-url'] = $viewvc;
1185                 }
1186
1187                 return $info;
1188         }
1189
1190         /**
1191          * Retrieve the revision number of a Subversion working directory.
1192          *
1193          * @param string $dir Directory of the svn checkout
1194          *
1195          * @return int Revision number
1196          */
1197         public static function getSvnRevision( $dir ) {
1198                 $info = self::getSvnInfo( $dir );
1199
1200                 if ( $info === false ) {
1201                         return false;
1202                 } elseif ( isset( $info['checkout-rev'] ) ) {
1203                         return $info['checkout-rev'];
1204                 } else {
1205                         return false;
1206                 }
1207         }
1208
1209         /**
1210          * @param string $dir Directory of the git checkout
1211          * @return bool|string Sha1 of commit HEAD points to
1212          */
1213         public static function getGitHeadSha1( $dir ) {
1214                 $repo = new GitInfo( $dir );
1215
1216                 return $repo->getHeadSHA1();
1217         }
1218
1219         /**
1220          * @param string $dir Directory of the git checkout
1221          * @return bool|string Branch currently checked out
1222          */
1223         public static function getGitCurrentBranch( $dir ) {
1224                 $repo = new GitInfo( $dir );
1225                 return $repo->getCurrentBranch();
1226         }
1227
1228         /**
1229          * Get the list of entry points and their URLs
1230          * @return string Wikitext
1231          */
1232         public function getEntryPointInfo() {
1233                 global $wgArticlePath, $wgScriptPath;
1234                 $scriptPath = $wgScriptPath ? $wgScriptPath : "/";
1235                 $entryPoints = array(
1236                         'version-entrypoints-articlepath' => $wgArticlePath,
1237                         'version-entrypoints-scriptpath' => $scriptPath,
1238                         'version-entrypoints-index-php' => wfScript( 'index' ),
1239                         'version-entrypoints-api-php' => wfScript( 'api' ),
1240                         'version-entrypoints-load-php' => wfScript( 'load' ),
1241                 );
1242
1243                 $language = $this->getLanguage();
1244                 $thAttribures = array(
1245                         'dir' => $language->getDir(),
1246                         'lang' => $language->getHtmlCode()
1247                 );
1248                 $out = Html::element(
1249                                 'h2',
1250                                 array( 'id' => 'mw-version-entrypoints' ),
1251                                 $this->msg( 'version-entrypoints' )->text()
1252                         ) .
1253                         Html::openElement( 'table',
1254                                 array(
1255                                         'class' => 'wikitable plainlinks',
1256                                         'id' => 'mw-version-entrypoints-table',
1257                                         'dir' => 'ltr',
1258                                         'lang' => 'en'
1259                                 )
1260                         ) .
1261                         Html::openElement( 'tr' ) .
1262                         Html::element(
1263                                 'th',
1264                                 $thAttribures,
1265                                 $this->msg( 'version-entrypoints-header-entrypoint' )->text()
1266                         ) .
1267                         Html::element(
1268                                 'th',
1269                                 $thAttribures,
1270                                 $this->msg( 'version-entrypoints-header-url' )->text()
1271                         ) .
1272                         Html::closeElement( 'tr' );
1273
1274                 foreach ( $entryPoints as $message => $value ) {
1275                         $url = wfExpandUrl( $value, PROTO_RELATIVE );
1276                         $out .= Html::openElement( 'tr' ) .
1277                                 // ->text() looks like it should be ->parse(), but this function
1278                                 // returns wikitext, not HTML, boo
1279                                 Html::rawElement( 'td', array(), $this->msg( $message )->text() ) .
1280                                 Html::rawElement( 'td', array(), Html::rawElement( 'code', array(), "[$url $value]" ) ) .
1281                                 Html::closeElement( 'tr' );
1282                 }
1283
1284                 $out .= Html::closeElement( 'table' );
1285
1286                 return $out;
1287         }
1288
1289         protected function getGroupName() {
1290                 return 'wiki';
1291         }
1292 }