includes/specials/SpecialVersion.php

   1 <?php
   2
   3 /**
   4  * Give information about the version of MediaWiki, PHP, the DB and extensions
   5  *
   6  * @ingroup SpecialPage
   7  *
   8  * @author Ævar Arnfjörð Bjarmason <avarab@gmail.com>
   9  * @copyright Copyright © 2005, Ævar Arnfjörð Bjarmason
  10  * @license http://www.gnu.org/copyleft/gpl.html GNU General Public License 2.0 or later
  11  */
  12 class SpecialVersion extends SpecialPage {
  13         private $firstExtOpened = true;
  14
  15         function __construct(){
  16                 parent::__construct( 'Version' );
  17         }
  18
  19         /**
  20          * main()
  21          */
  22         function execute( $par ) {
  23                 global $wgOut, $wgMessageCache, $wgSpecialVersionShowHooks, $wgContLang;
  24                 $wgMessageCache->loadAllMessages();
  25
  26                 $this->setHeaders();
  27                 $this->outputHeader();
  28
  29                 if( $wgContLang->isRTL() ) {
  30                         $wgOut->addHTML( '<div dir="rtl">' );
  31                 } else {
  32                         $wgOut->addHTML( '<div dir="ltr">' );
  33                 }
  34                 $text =
  35                         $this->MediaWikiCredits() .
  36                         $this->softwareInformation() .
  37                         $this->extensionCredits();
  38                 if ( $wgSpecialVersionShowHooks ) {
  39                         $text .= $this->wgHooks();
  40                 }
  41                 $wgOut->addWikiText( $text );
  42                 $wgOut->addHTML( $this->IPInfo() );
  43                 $wgOut->addHTML( '</div>' );
  44         }
  45
  46         /**
  47          * execuate command for output
  48          * @param string command
  49          * @return string output
  50          */
  51         static function execOutput( $cmd ) {
  52                 $out = array( $cmd );
  53                 exec( $cmd.' 2>&1', $out );
  54                 unset($out[0]);
  55                 return implode("\n", $out );
  56         }
  57
  58         /**#@+
  59          * @private
  60          */
  61
  62         /**
  63          * @return wiki text showing the license information
  64          */
  65         static function MediaWikiCredits() {
  66                 global $wgContLang;
  67
  68                 $ret = Xml::element( 'h2', array( 'id' => 'mw-version-license' ), wfMsg( 'version-license' ) );
  69
  70                 // This text is always left-to-right.
  71                 $ret .= '<div dir="ltr">';
  72                 $ret .= "__NOTOC__
  73                 This wiki is powered by '''[http://www.mediawiki.org/ MediaWiki]''',
  74                 copyright © 2001-2009 Magnus Manske, Brion Vibber, Lee Daniel Crocker,
  75                 Tim Starling, Erik Möller, Gabriel Wicke, Ævar Arnfjörð Bjarmason,
  76                 Niklas Laxström, Domas Mituzas, Rob Church, Yuri Astrakhan, Aryeh Gregor,
  77                 Aaron Schulz, Andrew Garrett, Raimond Spekking, Alexandre Emsenhuber,
  78                 Siebrand Mazeland and others.
  79
  80                 MediaWiki is free software; you can redistribute it and/or modify
  81                 it under the terms of the GNU General Public License as published by
  82                 the Free Software Foundation; either version 2 of the License, or
  83                 (at your option) any later version.
  84
  85                 MediaWiki is distributed in the hope that it will be useful,
  86                 but WITHOUT ANY WARRANTY; without even the implied warranty of
  87                 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  88                 GNU General Public License for more details.
  89
  90                 You should have received [{{SERVER}}{{SCRIPTPATH}}/COPYING a copy of the GNU General Public License]
  91                 along with this program; if not, write to the Free Software
  92                 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
  93                 or [http://www.gnu.org/licenses/old-licenses/gpl-2.0.html read it online].
  94                 ";
  95                 $ret .= '</div>';
  96
  97                 return str_replace( "\t\t", '', $ret ) . "\n";
  98         }
  99
 100         /**
 101          * @return wiki text showing the third party software versions (apache, php, mysql).
 102          */
 103         static function softwareInformation() {
 104                 global $wgUseImageMagick, $wgImageMagickConvertCommand, $wgDiff3, $wgDiff, $wgUseTeX;
 105                 global $wgFileExtensions, $wgSVGConverter, $wgSVGConverters, $wgSVGConverterPath;
 106                 global $wgUser, $wgSpecialVersionExtended;
 107                 $dbr = wfGetDB( DB_SLAVE );
 108
 109                 // Put the software in an array of form 'name' => 'version'. All messages should
 110                 // be loaded here, so feel free to use wfMsg*() in the 'name'. Raw HTML or wikimarkup
 111                 // can be used
 112                 $software = array();
 113
 114                 $software['[http://www.mediawiki.org/ MediaWiki]'] = self::getVersionLinked();
 115                 $software['[http://www.php.net/ PHP]'] = phpversion() . " (" . php_sapi_name() . ")";
 116                 $software[$dbr->getSoftwareLink()] = $dbr->getServerVersion();
 117
 118                 if( $wgSpecialVersionExtended || $wgUser->isAllowed( 'versiondetail' ) ) {
 119                         // Get the web server name and its version, if applicable
 120                         // Chop off PHP text from the string if it has the text desired
 121                         $serverSoftware = $_SERVER['SERVER_SOFTWARE'];
 122                         if ( strrpos( $serverSoftware, 'PHP' ) === false ) {
 123                         } else {
 124                                 $serverSoftware = trim( substr( $serverSoftware, 0, strrpos($serverSoftware,'PHP') - 1 ) );
 125                         }
 126
 127                         // Get the web server name and its version.
 128                         $serverSoftwareLine = explode('/',$serverSoftware);
 129                         $serverSoftwareName = $serverSoftwareLine[0];
 130
 131                         // Insert the website of the web server if applicable.
 132                         if ( stristr( $serverSoftwareName, 'Apache' ) )
 133                                 $serverSoftwareURL = 'http://httpd.apache.org/';
 134                         else if ( stristr( $serverSoftwareName, 'IIS' ) )
 135                                 $serverSoftwareURL = 'http://www.microsoft.com/iis/';
 136                         else if ( stristr( $serverSoftwareName, 'Cherokee' ) )
 137                                 $serverSoftwareURL = 'http://www.cherokee-project.com/';
 138                         else if ( stristr( $serverSoftwareName, 'lighttpd' ) )
 139                                 $serverSoftwareURL = 'http://www.lighttpd.net/';
 140                         else if ( stristr( $serverSoftwareName, 'Sun' ) )
 141                                 $serverSoftwareURL = 'http://www.sun.com/software/products/web_srvr/';
 142                         else if ( stristr( $serverSoftwareName, 'nginx' ) )
 143                                 $serverSoftwareURL = 'http://nginx.net/';
 144
 145                         // Get the version of the web server. If does not have one,
 146                         // leave it as empty.
 147                         if ( $serverSoftwareLine[1] != '' ) {
 148                                 $serverSoftwareVersion = $serverSoftwareLine[1];
 149                         } else {
 150                                 $serverSoftwareVersion = '';
 151                         }
 152
 153                         if ( isset( $serverSoftwareURL ) )
 154                                 $software["[$serverSoftwareURL $serverSoftwareName]"] = $serverSoftwareVersion;
 155                         else
 156                                 $software[$serverSoftwareName] = $serverSoftwareVersion;
 157
 158                         // Version information for diff3
 159                         if ( file_exists( trim( $wgDiff3, '"' ) ) ) {
 160                                 $swDiff3Info = self::execOutput( $wgDiff3 . ' -v' );
 161                                 $swDiff3Line = explode("\n",$swDiff3Info ,2);
 162                                 $swDiff3Ver = $swDiff3Line[0];
 163                                 $swDiff3Ver = str_replace( 'diff3 (GNU diffutils) ', '' , $swDiff3Ver);
 164                                 $software['[http://www.gnu.org/software/diffutils/diffutils.html diff3]'] = $swDiff3Ver;
 165                         }
 166
 167                         // Version information for diff
 168                         if ( file_exists( trim( $wgDiff, '"' ) ) ) {
 169                                 $swDiffInfo = self::execOutput( $wgDiff . ' -v' );
 170                                 $swDiffLine = explode("\n",$swDiffInfo ,2);
 171                                 $swDiffVer = $swDiffLine[0];
 172                                 $swDiffVer = str_replace( 'diff (GNU diffutils) ', '' , $swDiffVer);
 173                                 $software['[http://www.gnu.org/software/diffutils/diffutils.html diff]'] = $swDiffVer;
 174                         }
 175
 176                         // Look for ImageMagick's version, if did not found, try to find the GD library version
 177                         if ( $wgUseImageMagick ) {
 178                                 if ( file_exists( trim( $wgImageMagickConvertCommand, '"' ) ) ) {
 179                                         $swImageMagickInfo = self::execOutput( $wgImageMagickConvertCommand . ' -version' );
 180                                         list( $head, $tail ) = explode( 'ImageMagick', $swImageMagickInfo );
 181                                         list( $swImageMagickVer ) = explode('http://www.imagemagick.org', $tail );
 182                                         $software['[http://www.imagemagick.org/ ImageMagick]'] = $swImageMagickVer;
 183                                 }
 184                         } else {
 185                                 if( function_exists( 'gd_info' ) ) {
 186                                         $gdInfo = gd_info();
 187                                         if ( strstr( $gdInfo['GD Version'], 'bundled' ) != false ) {
 188                                                 $gd_URL = 'http://www.php.net/gd';
 189                                         } else {
 190                                                 $gd_URL = 'http://www.libgd.org';
 191                                         }
 192                                         $software['[' . $gd_URL . ' GD library]'] = $gdInfo['GD Version'];
 193                                 }
 194                         }
 195
 196                         // Look for SVG converter and print the version info
 197                         if ( in_array( 'svg', $wgFileExtensions ) ) {
 198                                 $swSVGConvName = $wgSVGConverter;
 199                                 $haveSVGConvVer = false;
 200                                 $pathVar = '$path/';
 201                                 $binPath = '/usr/bin/';
 202                                 $execPath = strtok(strstr($wgSVGConverters[$wgSVGConverter],$pathVar), ' ');
 203                                 $execPath = substr_replace($execPath, '', 0, strlen($pathVar));
 204                                 $execFullPath = trim($wgSVGConverterPath,'"') . $execPath;
 205                                 $execBinPath = $binPath . $execPath;
 206                                 if (strstr($execFullPath, ' ') != false) {
 207                                         $execFullPath = '"' . $execFullPath . '"';
 208                                 }
 209                                 if ( !strcmp( $wgSVGConverter, 'ImageMagick') ) {
 210                                         // Get version info for ImageMagick
 211                                         if ( file_exists( $execBinPath ) )
 212                                                 $swSVGConvInfo = self::execOutput( $execBinPath . ' -version' );
 213                                         else if ( file_exists( trim( $execFullPath, '"' ) ) || ( file_exists( trim( $execFullPath, '"' ) . '.exe' ) ) )
 214                                                 $swSVGConvInfo = self::execOutput( $execFullPath . ' -version' );
 215                                         list( $head, $tail ) = explode( 'ImageMagick', $swSVGConvInfo );
 216                                         list( $swSVGConvVer ) = explode('http://www.imagemagick.org', $tail );
 217                                         $swSVGConvURL = 'http://www.imagemagick.org/';
 218                                         $haveSVGConvVer = true;
 219                                 } else if ( strstr ($execFullPath, 'rsvg') != false ) {
 220                                         // Get version info for rsvg
 221                                         if ( file_exists( $execBinPath ) )
 222                                                 $swSVGConvInfo = self::execOutput( $execBinPath . ' -v' );
 223                                         else if ( file_exists( trim( $execFullPath, '"' ) ) || ( file_exists( trim( $execFullPath, '"' ) . '.exe' ) ) )
 224                                                 $swSVGConvInfo = self::execOutput( $execFullPath . ' -v' );
 225                                         $swSVGConvLine = explode("\n",$swSVGConvInfo ,2);
 226                                         $swSVGConvVer = $swSVGConvLine[0];
 227                                         $swSVGConvURL = 'http://librsvg.sourceforge.net/';
 228                                         $haveSVGConvVer = true;
 229                                 } else if ( strstr ($execFullPath, 'inkscape') != false ) {
 230                                         // Get version info for Inkscape
 231                                         if ( file_exists( $execBinPath ) )
 232                                                 $swSVGConvInfo = self::execOutput( $execBinPath . ' -z -V' );
 233                                         else if ( file_exists( trim( $execFullPath, '"' ) ) || ( file_exists( trim( $execFullPath, '"' ) . '.exe' ) ) )
 234                                                 $swSVGConvInfo = self::execOutput( $execFullPath . ' -z -V' );
 235                                         $swSVGConvLine = explode("\n",$swSVGConvInfo ,2);
 236                                         $swSVGConvVer = ltrim( $swSVGConvLine[0], 'Inkscape ' );
 237                                         $swSVGConvURL = 'http://www.inkscape.org/';
 238                                         $swSVGConvName = ucfirst( $wgSVGConverter );
 239                                         $haveSVGConvVer = true;
 240                                 }
 241                                 if ( $haveSVGConvVer )
 242                                         $software["[$swSVGConvURL $swSVGConvName]"] = $swSVGConvVer;
 243                         }
 244
 245                         // Look for TeX support and print the software version info
 246                         if ( $wgUseTeX ) {
 247                                 $binPath = '/usr/bin/';
 248                                 $swMathName = Array(
 249                                         'ocaml'       => 'OCaml',
 250                                         'gs'          => 'Ghostscript',
 251                                         'dvips'       => 'Dvips',
 252                                         'latex'       => 'LaTeX',
 253                                         'imagemagick' => 'ImageMagick',
 254                                 );
 255                                 $swMathURL = Array(
 256                                         'ocaml'       => 'http://caml.inria.fr/',
 257                                         'gs'          => 'http://www.ghostscript.com/',
 258                                         'dvips'       => 'http://www.radicaleye.com/dvips.html',
 259                                         'latex'       => 'http://www.latex-project.org/',
 260                                         'imagemagick' => 'http://www.imagemagick.org/',
 261                                 );
 262                                 $swMathExec = Array(
 263                                         'ocaml'       => 'ocamlc',
 264                                         'gs'          => 'gs',
 265                                         'dvips'       => 'dvips',
 266                                         'latex'       => 'latex',
 267                                         'imagemagick' => 'convert',
 268                                 );
 269                                 $swMathParam = Array(
 270                                         'ocaml'       => '-version',
 271                                         'gs'          => '-v',
 272                                         'dvips'       => '-v',
 273                                         'latex'       => '-v',
 274                                         'imagemagick' => '-version',
 275                                 );
 276                                 foreach ( $swMathExec as $swMath => $swMathCmd ) {
 277                                         $wBinPath = '';
 278                                         if ( file_exists( $binPath . 'whereis' ) ) {
 279                                                 $swWhereIsInfo = self::execOutput( $binPath . 'whereis -b ' . $swMathCmd );
 280                                                 $swWhereIsLine = explode( "\n", $swWhereIsInfo, 2);
 281                                                 $swWhereIsFirstLine = $swWhereIsLine[0];
 282                                                 $swWhereIsBinPath = explode( ' ', $swWhereIsFirstLine, 3);
 283                                                 if ( count( $swWhereIsBinPath ) > 1 )
 284                                                         $wBinPath = dirname( $swWhereIsBinPath[1] );
 285                                         } else {
 286                                                 $swPathLine = explode( ';', $_SERVER['PATH'] );
 287                                                 $swPathFound = false;
 288                                                 foreach( $swPathLine as $swPathDir ) {
 289                                                         if ( file_exists( $swPathDir . '/' . $swMathCmd . '.exe' ) && ($swPathFound === false) ) {
 290                                                                 $wBinPath = $swPathDir . '/';
 291                                                                 $swPathFound = true;
 292                                                         }
 293                                                 }
 294                                         }
 295                                         if ( file_exists( $binPath . $swMathCmd ) || file_exists( $wBinPath . $swMathCmd ) ) {
 296                                                 $swMathInfo = self::execOutput( $swMathCmd . ' ' . $swMathParam[$swMath] );
 297                                                 $swMathLine = explode( "\n", $swMathInfo, 2);
 298                                                 $swMathVerInfo = $swMathLine[0];
 299                                                 if ( !strcmp( $swMath, 'gs' ) )
 300                                                         $swMathVerInfo = str_replace( 'GPL Ghostscript ', '', $swMathVerInfo );
 301                                                 else if ( !strcmp( $swMath, 'dvips' ) ) {
 302                                                         $swMathVerParts = explode( ' ' , $swMathVerInfo );
 303                                                         $swMathVerInfo = $swMathVerParts[3];
 304                                                 } else if ( !strcmp( $swMath, 'imagemagick' ) ) {
 305                                                         list( $head, $tail ) = explode( 'ImageMagick', $swMathVerInfo );
 306                                                         list( $swMathVerInfo ) = explode('http://www.imagemagick.org', $tail );
 307                                                 }
 308                                                 $swMathVer[$swMath] = trim( $swMathVerInfo );
 309                                                 $software["[$swMathURL[$swMath] $swMathName[$swMath]]"] = $swMathVer[$swMath];
 310                                         }
 311                                 }
 312                         }
 313                 }
 314
 315                 // Allow a hook to add/remove items
 316                 wfRunHooks( 'SoftwareInfo', array( &$software ) );
 317
 318                 $out = Xml::element( 'h2', array( 'id' => 'mw-version-software' ), wfMsg( 'version-software' ) ) .
 319                            Xml::openElement( 'table', array( 'class' => 'wikitable', 'id' => 'sv-software' ) ) .
 320                                 "<tr>
 321                                         <th>" . wfMsg( 'version-software-product' ) . "</th>
 322                                         <th>" . wfMsg( 'version-software-version' ) . "</th>
 323                                 </tr>\n";
 324                 foreach( $software as $name => $version ) {
 325                         $out .= "<tr>
 326                                         <td>" . $name . "</td>
 327                                         <td>" . $version . "</td>
 328                                 </tr>\n";
 329                 }
 330                 return $out . Xml::closeElement( 'table' );
 331         }
 332
 333         /**
 334          * Return a string of the MediaWiki version with SVN revision if available
 335          *
 336          * @return mixed
 337          */
 338         public static function getVersion( $flags = ''  ) {
 339                 global $wgVersion, $IP;
 340                 wfProfileIn( __METHOD__ );
 341                 $svn = self::getSvnRevision( $IP, false, false , false );
 342                 $svnCo = self::getSvnRevision( $IP, true, false , false );
 343                 if ( !$svn ) {
 344                         $version = $wgVersion;
 345                 } elseif( $flags === 'nodb' ) {
 346                         $version = "$wgVersion (r$svnCo)";
 347                 } else {
 348                         $version = $wgVersion . wfMsg( 'version-svn-revision', $svn, $svnCo );
 349                 }
 350                 wfProfileOut( __METHOD__ );
 351                 return $version;
 352         }
 353
 354         /**
 355          * Return a string of the MediaWiki version with a link to SVN revision if
 356          * available
 357          *
 358          * @return mixed
 359          */
 360         public static function getVersionLinked() {
 361                 global $wgVersion, $IP;
 362                 wfProfileIn( __METHOD__ );
 363                 $svn = self::getSvnRevision( $IP, false, false, false );
 364                 $svnCo = self::getSvnRevision( $IP, true, false, false );
 365                 $svnDir = self::getSvnRevision( $IP, true, false, true );
 366                 $viewvcStart = 'http://svn.wikimedia.org/viewvc/mediawiki/';
 367                 $viewvcEnd = '/?pathrev=';
 368                 $viewvc = $viewvcStart . $svnDir .  $viewvcEnd;
 369                 $version = $svn ? $wgVersion . " [{$viewvc}{$svnCo} " . wfMsg( 'version-svn-revision', $svn, $svnCo ) . ']' : $wgVersion;
 370                 wfProfileOut( __METHOD__ );
 371                 return $version;
 372         }
 373
 374         /** Generate wikitext showing extensions name, URL, author and description */
 375         function extensionCredits() {
 376                 global $wgExtensionCredits, $wgExtensionFunctions, $wgParser, $wgSkinExtensionFunctions;
 377
 378                 if ( ! count( $wgExtensionCredits ) && ! count( $wgExtensionFunctions ) && ! count( $wgSkinExtensionFunctions ) )
 379                         return '';
 380
 381                 $extensionTypes = array(
 382                         'specialpage' => wfMsg( 'version-specialpages' ),
 383                         'parserhook' => wfMsg( 'version-parserhooks' ),
 384                         'variable' => wfMsg( 'version-variables' ),
 385                         'media' => wfMsg( 'version-mediahandlers' ),
 386                         'other' => wfMsg( 'version-other' ),
 387                 );
 388                 wfRunHooks( 'SpecialVersionExtensionTypes', array( &$this, &$extensionTypes ) );
 389
 390                 $out = Xml::element( 'h2', array( 'id' => 'mw-version-ext' ), wfMsg( 'version-extensions' ) ) .
 391                         Xml::openElement( 'table', array( 'class' => 'wikitable', 'id' => 'sv-ext' ) );
 392
 393                 foreach ( $extensionTypes as $type => $text ) {
 394                         if ( isset ( $wgExtensionCredits[$type] ) && count ( $wgExtensionCredits[$type] ) ) {
 395                                 $out .= $this->openExtType( $text );
 396
 397                                 usort( $wgExtensionCredits[$type], array( $this, 'compare' ) );
 398
 399                                 foreach ( $wgExtensionCredits[$type] as $extension ) {
 400                                         $version = null;
 401                                         $subVersion = null;
 402                                         $subVersionCo = null;
 403                                         $viewvc = null;
 404                                         if ( isset( $extension['path'] ) ) {
 405                                                 $subVersion = self::getSvnRevision(dirname($extension['path']), false, true, false);
 406                                                 $subVersionCo = self::getSvnRevision(dirname($extension['path']), true, true, false);
 407                                                 $subVersionDir = self::getSvnRevision(dirname($extension['path']), false, true, true);
 408                                                 if ($subVersionDir)
 409                                                         $viewvc = $subVersionDir . $subVersionCo;
 410                                         }
 411                                         if ( isset( $extension['version'] ) ) {
 412                                                 $version = $extension['version'];
 413                                         }
 414
 415                                         $out .= $this->formatCredits(
 416                                                 isset ( $extension['name'] )           ? $extension['name']        : '',
 417                                                 $version,
 418                                                 $subVersion,
 419                                                 $subVersionCo,
 420                                                 $viewvc,
 421                                                 isset ( $extension['author'] )         ? $extension['author']      : '',
 422                                                 isset ( $extension['url'] )            ? $extension['url']         : null,
 423                                                 isset ( $extension['description'] )    ? $extension['description'] : '',
 424                                                 isset ( $extension['descriptionmsg'] ) ? $extension['descriptionmsg'] : null
 425                                         );
 426                                 }
 427                         }
 428                 }
 429
 430                 if ( count( $wgExtensionFunctions ) ) {
 431                         $out .= $this->openExtType( wfMsg( 'version-extension-functions' ) );
 432                         $out .= '<tr><td colspan="4">' . $this->listToText( $wgExtensionFunctions ) . "</td></tr>\n";
 433                 }
 434
 435                 if ( $cnt = count( $tags = $wgParser->getTags() ) ) {
 436                         for ( $i = 0; $i < $cnt; ++$i )
 437                                 $tags[$i] = "&lt;{$tags[$i]}&gt;";
 438                         $out .= $this->openExtType( wfMsg( 'version-parser-extensiontags' ) );
 439                         $out .= '<tr><td colspan="4">' . $this->listToText( $tags ). "</td></tr>\n";
 440                 }
 441
 442                 if( $cnt = count( $fhooks = $wgParser->getFunctionHooks() ) ) {
 443                         $out .= $this->openExtType( wfMsg( 'version-parser-function-hooks' ) );
 444                         $out .= '<tr><td colspan="4">' . $this->listToText( $fhooks ) . "</td></tr>\n";
 445                 }
 446
 447                 if ( count( $wgSkinExtensionFunctions ) ) {
 448                         $out .= $this->openExtType( wfMsg( 'version-skin-extension-functions' ) );
 449                         $out .= '<tr><td colspan="4">' . $this->listToText( $wgSkinExtensionFunctions ) . "</td></tr>\n";
 450                 }
 451                 $out .= Xml::closeElement( 'table' );
 452                 return $out;
 453         }
 454
 455         /** Callback to sort extensions by type */
 456         function compare( $a, $b ) {
 457                 global $wgLang;
 458                 if( $a['name'] === $b['name'] ) {
 459                         return 0;
 460                 } else {
 461                         return $wgLang->lc( $a['name'] ) > $wgLang->lc( $b['name'] )
 462                                 ? 1
 463                                 : -1;
 464                 }
 465         }
 466
 467         function formatCredits( $name, $version = null, $subVersion = null, $subVersionCo = null, $subVersionURL = null, $author = null, $url = null, $description = null, $descriptionMsg = null ) {
 468                 $haveSubversion = $subVersion;
 469                 $extension = isset( $url ) ? "[$url $name]" : $name;
 470                 $version = isset( $version ) ? wfMsg( 'version-version', $version ) : '';
 471                 $subVersion = isset( $subVersion ) ? wfMsg( 'version-svn-revision', $subVersion, $subVersionCo ) : '';
 472                 $subVersion = isset( $subVersionURL ) ? "[$subVersionURL $subVersion]" : $subVersion;
 473
 474                 # Look for a localized description
 475                 if( isset( $descriptionMsg ) ) {
 476                         $msg = wfMsg( $descriptionMsg );
 477                         if ( !wfEmptyMsg( $descriptionMsg, $msg ) && $msg != '' ) {
 478                                 $description = $msg;
 479                         }
 480                 }
 481
 482                 if ( $haveSubversion ) {
 483                 $extNameVer = "<tr>
 484                                 <td><em>$extension $version</em></td>
 485                                 <td><em>$subVersion</em></td>";
 486                 } else {
 487                 $extNameVer = "<tr>
 488                                 <td colspan=\"2\"><em>$extension $version</em></td>";
 489                 }
 490                 $extDescAuthor = "<td>$description</td>
 491                                   <td>" . $this->listToText( (array)$author ) . "</td>
 492                             </tr>\n";
 493                 return $ret = $extNameVer . $extDescAuthor;
 494                 return $ret;
 495         }
 496
 497         /**
 498          * @return string
 499          */
 500         function wgHooks() {
 501                 global $wgHooks;
 502
 503                 if ( count( $wgHooks ) ) {
 504                         $myWgHooks = $wgHooks;
 505                         ksort( $myWgHooks );
 506
 507                         $ret = Xml::element( 'h2', array( 'id' => 'mw-version-hooks' ), wfMsg( 'version-hooks' ) ) .
 508                                 Xml::openElement( 'table', array( 'class' => 'wikitable', 'id' => 'sv-hooks' ) ) .
 509                                 "<tr>
 510                                         <th>" . wfMsg( 'version-hook-name' ) . "</th>
 511                                         <th>" . wfMsg( 'version-hook-subscribedby' ) . "</th>
 512                                 </tr>\n";
 513
 514                         foreach ( $myWgHooks as $hook => $hooks )
 515                                 $ret .= "<tr>
 516                                                 <td>$hook</td>
 517                                                 <td>" . $this->listToText( $hooks ) . "</td>
 518                                         </tr>\n";
 519
 520                         $ret .= Xml::closeElement( 'table' );
 521                         return $ret;
 522                 } else
 523                         return '';
 524         }
 525
 526         private function openExtType($text, $name = null) {
 527                 $opt = array( 'colspan' => 4 );
 528                 $out = '';
 529
 530                 if(!$this->firstExtOpened) {
 531                         // Insert a spacing line
 532                         $out .= '<tr class="sv-space">' . Xml::element( 'td', $opt ) . "</tr>\n";
 533                 }
 534                 $this->firstExtOpened = false;
 535
 536                 if($name) { $opt['id'] = "sv-$name"; }
 537
 538                 $out .= "<tr>" . Xml::element( 'th', $opt, $text) . "</tr>\n";
 539                 return $out;
 540         }
 541
 542         /**
 543          * @return string
 544          */
 545         function IPInfo() {
 546                 $ip =  str_replace( '--', ' - ', htmlspecialchars( wfGetIP() ) );
 547                 return "<!-- visited from $ip -->\n" .
 548                         "<span style='display:none'>visited from $ip</span>";
 549         }
 550
 551         /**
 552          * @param array $list
 553          * @return string
 554          */
 555         function listToText( $list ) {
 556                 $cnt = count( $list );
 557
 558                 if ( $cnt == 1 ) {
 559                         // Enforce always returning a string
 560                         return (string)self::arrayToString( $list[0] );
 561                 } elseif ( $cnt == 0 ) {
 562                         return '';
 563                 } else {
 564                         global $wgLang;
 565                         sort( $list );
 566                         return $wgLang->listToText( array_map( array( __CLASS__, 'arrayToString' ), $list ) );
 567                 }
 568         }
 569
 570         /**
 571          * @param mixed $list Will convert an array to string if given and return
 572          *                    the paramater unaltered otherwise
 573          * @return mixed
 574          */
 575         static function arrayToString( $list ) {
 576                 if( is_array( $list ) && count( $list ) == 1 )
 577                         $list = $list[0];
 578                 if( is_object( $list ) ) {
 579                         $class = get_class( $list );
 580                         return "($class)";
 581                 } elseif ( !is_array( $list ) ) {
 582                         return $list;
 583                 } else {
 584                         if( is_object( $list[0] ) )
 585                                 $class = get_class( $list[0] );
 586                         else
 587                                 $class = $list[0];
 588                         return "($class, {$list[1]})";
 589                 }
 590         }
 591
 592         /**
 593          * Retrieve the revision number of a Subversion working directory.
 594          *
 595          * @param String $dir Directory of the svn checkout
 596          * @param Boolean $coRev optional to return value whether is Last Modified
 597          *                or Checkout revision number
 598          * @param Boolean $extension optional to check the path whether is from
 599          *                Wikimedia SVN server or not
 600          * @param Boolean $relPath optional to get the end part of the checkout path
 601          * @return mixed revision number as int, end part of the checkout path,
 602          *               or false if not a SVN checkout
 603          */
 604         public static function getSvnRevision( $dir, $coRev = false, $extension = false, $relPath = false) {
 605                 // http://svnbook.red-bean.com/nightly/en/svn.developer.insidewc.html
 606                 $entries = $dir . '/.svn/entries';
 607
 608                 if( !file_exists( $entries ) ) {
 609                         return false;
 610                 }
 611
 612                 $content = file( $entries );
 613
 614                 // check if file is xml (subversion release <= 1.3) or not (subversion release = 1.4)
 615                 if( preg_match( '/^<\?xml/', $content[0] ) ) {
 616                         // subversion is release <= 1.3
 617                         if( !function_exists( 'simplexml_load_file' ) ) {
 618                                 // We could fall back to expat... YUCK
 619                                 return false;
 620                         }
 621
 622                         // SimpleXml whines about the xmlns...
 623                         wfSuppressWarnings();
 624                         $xml = simplexml_load_file( $entries );
 625                         wfRestoreWarnings();
 626
 627                         if( $xml ) {
 628                                 foreach( $xml->entry as $entry ) {
 629                                         if( $xml->entry[0]['name'] == '' ) {
 630                                                 // The directory entry should always have a revision marker.
 631                                                 if( $entry['revision'] ) {
 632                                                         return intval( $entry['revision'] );
 633                                                 }
 634                                         }
 635                                 }
 636                         }
 637                         return false;
 638                 } else {
 639                         // subversion is release 1.4 or above
 640                         if ($relPath) {
 641                                 $endPath = strstr( $content[4], 'tags' );
 642                                 if (!$endPath) {
 643                                         $endPath = strstr( $content[4], 'branches' );
 644                                         if (!$endPath) {
 645                                                 $endPath = strstr( $content[4], 'trunk' );
 646                                                 if (!$endPath)
 647                                                         return false;
 648                                         }
 649                                 }
 650                                 $endPath = trim ( $endPath );
 651                                 if ($extension) {
 652                                         $wmSvnPath = 'svn.wikimedia.org/svnroot/mediawiki';
 653                                         $isWMSvn = strstr($content[5],$wmSvnPath);
 654                                         if (!strcmp($isWMSvn,null)) {
 655                                                 return false;
 656                                         } else {
 657                                                 $viewvcStart = 'http://svn.wikimedia.org/viewvc/mediawiki/';
 658                                                 if (strstr( $content[4], 'trunk' ))
 659                                                         $viewvcEnd = '/?pathrev=';
 660                                                 else
 661                                                         // Avoids 404 error using pathrev when it does not found
 662                                                         $viewvcEnd = '/?revision=';
 663                                                 $viewvc = $viewvcStart . $endPath . $viewvcEnd;
 664                                                 return $viewvc;
 665                                         }
 666                                 }
 667                                 return $endPath;
 668                         }
 669                         if ($coRev)
 670                                 // get the directory checkout revsion number
 671                                 return intval( $content[3]) ;
 672                         else
 673                                 // get the directory last modified revision number
 674                                 return intval( $content[10] );
 675                 }
 676         }
 677
 678         /**#@-*/
 679 }