maintenance/dumpHTML.inc

   1 <?php
   2 /**
   3  * @package MediaWiki
   4  * @subpackage Maintenance
   5  */
   6
   7 define( 'REPORTING_INTERVAL', 10 );
   8
   9 require_once( 'includes/ImagePage.php' );
  10 require_once( 'includes/CategoryPage.php' );
  11 require_once( 'includes/RawPage.php' );
  12
  13 class DumpHTML {
  14         # Destination directory
  15         var $dest;
  16
  17         # Show interlanguage links?
  18         var $interwiki = true;
  19
  20         # Depth of HTML directory tree
  21         var $depth = 3;
  22
  23         # Directory that commons images are copied into
  24         var $sharedStaticPath;
  25
  26         # Relative path to image directory
  27         var $imageRel = 'upload';
  28
  29         # Copy commons images instead of symlinking
  30         var $forceCopy = false;
  31
  32         # Make links assuming the script path is in the same directory as
  33         # the destination
  34         var $alternateScriptPath = false;
  35
  36         # Original values of various globals
  37         var $oldArticlePath = false, $oldCopyrightIcon = false;
  38
  39         # Has setupGlobals been called?
  40         var $setupDone = false;
  41
  42         # List of raw pages used in the current article
  43         var $rawPages;
  44
  45         # Skin to use
  46         var $skin = 'dumphtml';
  47
  48         function DumpHTML( $settings ) {
  49                 foreach ( $settings as $var => $value ) {
  50                         $this->$var = $value;
  51                 }
  52         }
  53
  54         /**
  55          * Write a set of articles specified by start and end page_id
  56          * Skip categories and images, they will be done separately
  57          */
  58         function doArticles( $start, $end = false ) {
  59                 $fname = 'DumpHTML::doArticles';
  60
  61                 $this->setupGlobals();
  62
  63                 if ( $end === false ) {
  64                         $dbr =& wfGetDB( DB_SLAVE );
  65                         $end = $dbr->selectField( 'page', 'max(page_id)', false, $fname );
  66                 }
  67
  68                 $mainPageObj = Title::newMainPage();
  69                 $mainPage = $mainPageObj->getPrefixedDBkey();
  70
  71
  72                 for ($id = $start; $id <= $end; $id++) {
  73                         wfWaitForSlaves( 20 );
  74                         if ( !($id % REPORTING_INTERVAL) ) {
  75                                 print "Processing ID: $id\r";
  76                         }
  77                         if ( !($id % (REPORTING_INTERVAL*10) ) ) {
  78                                 print "\n";
  79                         }
  80                         $title = Title::newFromID( $id );
  81                         if ( $title ) {
  82                                 $ns = $title->getNamespace() ;
  83                                 if ( $ns != NS_CATEGORY && $title->getPrefixedDBkey() != $mainPage ) {
  84                                         $this->doArticle( $title );
  85                                 }
  86                         }
  87                 }
  88                 print "\n";
  89         }
  90
  91         function doSpecials() {
  92                 $this->doMainPage();
  93
  94                 $this->setupGlobals();
  95                 print "Special:Categories...";
  96                 $this->doArticle( Title::makeTitle( NS_SPECIAL, 'Categories' ) );
  97                 print "\n";
  98         }
  99
 100         /** Write the main page as index.html */
 101         function doMainPage() {
 102
 103                 print "Making index.html  ";
 104
 105                 // Set up globals with no ../../.. in the link URLs
 106                 $this->setupGlobals( 0 );
 107
 108                 $title = Title::newMainPage();
 109                 $text = $this->getArticleHTML( $title );
 110                 $file = fopen( "{$this->dest}/index.html", "w" );
 111                 if ( !$file ) {
 112                         print "\nCan't open index.html for writing\n";
 113                         return false;
 114                 }
 115                 fwrite( $file, $text );
 116                 fclose( $file );
 117                 print "\n";
 118         }
 119
 120         function doImageDescriptions() {
 121                 global $wgSharedUploadDirectory;
 122
 123                 $fname = 'DumpHTML::doImageDescriptions';
 124
 125                 $this->setupGlobals();
 126
 127                 /**
 128                  * Dump image description pages that don't have an associated article, but do
 129                  * have a local image
 130                  */
 131                 $dbr =& wfGetDB( DB_SLAVE );
 132                 extract( $dbr->tableNames( 'image', 'page' ) );
 133                 $res = $dbr->select( 'image', array( 'img_name' ), false, $fname );
 134
 135                 $i = 0;
 136                 print "Writing image description pages for local images\n";
 137                 $num = $dbr->numRows( $res );
 138                 while ( $row = $dbr->fetchObject( $res ) ) {
 139                         wfWaitForSlaves( 10 );
 140                         if ( !( ++$i % REPORTING_INTERVAL ) ) {
 141                                 print "Done $i of $num\r";
 142                         }
 143                         $title = Title::makeTitle( NS_IMAGE, $row->img_name );
 144                         if ( $title->getArticleID() ) {
 145                                 // Already done by dumpHTML
 146                                 continue;
 147                         }
 148                         $this->doArticle( $title );
 149                 }
 150                 print "\n";
 151
 152                 /**
 153                  * Dump images which only have a real description page on commons
 154                  */
 155                 print "Writing description pages for commons images\n";
 156                 $i = 0;
 157                 for ( $hash = 0; $hash < 256; $hash++ ) {
 158                         $dir = sprintf( "%01x/%02x", intval( $hash / 16 ), $hash );
 159                         $paths = array_merge( glob( "{$this->sharedStaticPath}/$dir/*" ),
 160                                 glob( "{$this->sharedStaticPath}/thumb/$dir/*" ) );
 161
 162                         foreach ( $paths as $path ) {
 163                                 $file = basename( $path );
 164                                 if ( !(++$i % REPORTING_INTERVAL ) ) {
 165                                         print "$i\r";
 166                                 }
 167
 168                                 $title = Title::makeTitle( NS_IMAGE, $file );
 169                                 $this->doArticle( $title );
 170                         }
 171                 }
 172                 print "\n";
 173         }
 174
 175         function doCategories() {
 176                 $fname = 'DumpHTML::doCategories';
 177                 $this->setupGlobals();
 178
 179                 $dbr =& wfGetDB( DB_SLAVE );
 180                 print "Selecting categories...";
 181                 $sql = 'SELECT DISTINCT cl_to FROM ' . $dbr->tableName( 'categorylinks' );
 182                 $res = $dbr->query( $sql, $fname );
 183
 184                 print "\nWriting " . $dbr->numRows( $res ).  " category pages\n";
 185                 $i = 0;
 186                 while ( $row = $dbr->fetchObject( $res ) ) {
 187                         wfWaitForSlaves( 10 );
 188                         if ( !(++$i % REPORTING_INTERVAL ) ) {
 189                                 print "$i\r";
 190                         }
 191                         $title = Title::makeTitle( NS_CATEGORY, $row->cl_to );
 192                         $this->doArticle( $title );
 193                 }
 194                 print "\n";
 195         }
 196
 197         function doRedirects() {
 198                 print "Doing redirects...\n";
 199                 $fname = 'DumpHTML::doRedirects';
 200                 $this->setupGlobals();
 201                 $dbr =& wfGetDB( DB_SLAVE );
 202
 203                 $res = $dbr->select( 'page', array( 'page_namespace', 'page_title' ),
 204                         array( 'page_is_redirect' => 1 ), $fname );
 205                 $num = $dbr->numRows( $res );
 206                 print "$num redirects to do...\n";
 207                 $i = 0;
 208                 while ( $row = $dbr->fetchObject( $res ) ) {
 209                         $title = Title::makeTitle( $row->page_namespace, $row->page_title );
 210                         if ( !(++$i % (REPORTING_INTERVAL*10) ) ) {
 211                                 print "Done $i of $num\n";
 212                         }
 213                         $this->doArticle( $title );
 214                 }
 215         }
 216
 217         /** Write an article specified by title */
 218         function doArticle( $title ) {
 219                 global $wgTitle, $wgSharedUploadPath, $wgSharedUploadDirectory;
 220                 global $wgUploadDirectory;
 221
 222                 $this->rawPages = array();
 223                 $text = $this->getArticleHTML( $title );
 224
 225                 if ( $text === false ) {
 226                         return;
 227                 }
 228
 229                 # Parse the XHTML to find the images
 230                 $images = $this->findImages( $text );
 231                 $this->copyImages( $images );
 232
 233                 # Write to file
 234                 $this->writeArticle( $title, $text );
 235
 236                 # Do raw pages
 237                 wfMkdirParents( "{$this->dest}/raw", 0755 );
 238                 foreach( $this->rawPages as $record ) {
 239                         list( $file, $title, $params ) = $record;
 240
 241                         $path = "{$this->dest}/raw/$file";
 242                         if ( !file_exists( $path ) ) {
 243                                 $article = new Article( $title );
 244                                 $request = new FauxRequest( $params );
 245                                 $rp = new RawPage( $article, $request );
 246                                 $text = $rp->getRawText();
 247
 248                                 print "Writing $file\n";
 249                                 $file = fopen( $path, 'w' );
 250                                 if ( !$file ) {
 251                                         print("Can't open file $fullName for writing\n");
 252                                         continue;
 253                                 }
 254                                 fwrite( $file, $text );
 255                                 fclose( $file );
 256                         }
 257                 }
 258         }
 259
 260         /** Write the given text to the file identified by the given title object */
 261         function writeArticle( &$title, $text ) {
 262                 $filename = $this->getHashedFilename( $title );
 263                 $fullName = "{$this->dest}/$filename";
 264                 $fullDir = dirname( $fullName );
 265
 266                 wfMkdirParents( $fullDir, 0755 );
 267
 268                 $file = fopen( $fullName, 'w' );
 269                 if ( !$file ) {
 270                         print("Can't open file $fullName for writing\n");
 271                         return;
 272                 }
 273
 274                 fwrite( $file, $text );
 275                 fclose( $file );
 276         }
 277
 278         /** Set up globals required for parsing */
 279         function setupGlobals( $currentDepth = NULL ) {
 280                 global $wgUser, $wgTitle, $wgStylePath, $wgArticlePath, $wgMathPath;
 281                 global $wgUploadPath, $wgLogo, $wgMaxCredits, $wgSharedUploadPath;
 282                 global $wgHideInterlanguageLinks, $wgUploadDirectory, $wgThumbnailScriptPath;
 283                 global $wgSharedThumbnailScriptPath, $wgEnableParserCache, $wgHooks, $wgServer;
 284                 global $wgRightsUrl, $wgRightsText, $wgCopyrightIcon;
 285
 286                 static $oldLogo = NULL;
 287
 288                 if ( !$this->setupDone ) {
 289                         $wgHooks['GetLocalURL'][] =& $this;
 290                         $wgHooks['GetFullURL'][] =& $this;
 291                         $this->oldArticlePath = $wgServer . $wgArticlePath;
 292                 }
 293
 294                 if ( is_null( $currentDepth ) ) {
 295                         $currentDepth = $this->depth;
 296                 }
 297
 298                 if ( $this->alternateScriptPath ) {
 299                         if ( $currentDepth == 0 ) {
 300                                 $wgScriptPath = '.';
 301                         } else {
 302                                 $wgScriptPath = '..' . str_repeat( '/..', $currentDepth - 1 );
 303                         }
 304                 } else {
 305                         $wgScriptPath = '..' . str_repeat( '/..', $currentDepth );
 306                 }
 307
 308                 $wgArticlePath = str_repeat( '../', $currentDepth ) . '$1';
 309
 310                 # Logo image
 311                 # Allow for repeated setup
 312                 if ( !is_null( $oldLogo ) ) {
 313                         $wgLogo = $oldLogo;
 314                 } else {
 315                         $oldLogo = $wgLogo;
 316                 }
 317
 318                 if ( strpos( $wgLogo, $wgUploadPath ) === 0 ) {
 319                         # If it's in the upload directory, rewrite it to the new upload directory
 320                         $wgLogo = "$wgScriptPath/{$this->imageRel}/" . substr( $wgLogo, strlen( $wgUploadPath ) + 1 );
 321                 } elseif ( $wgLogo{0} == '/' ) {
 322                         # This is basically heuristic
 323                         # Rewrite an absolute logo path to one relative to the the script path
 324                         $wgLogo = $wgScriptPath . $wgLogo;
 325                 }
 326
 327                 # Another ugly hack
 328                 if ( !$this->setupDone ) {
 329                         $this->oldCopyrightIcon = $wgCopyrightIcon;
 330                 }
 331                 $wgCopyrightIcon = str_replace( 'src="/images',
 332                         'src="' . htmlspecialchars( $wgScriptPath ) . '/images', $this->oldCopyrightIcon );
 333
 334
 335
 336                 $wgStylePath = "$wgScriptPath/skins";
 337                 $wgUploadPath = "$wgScriptPath/{$this->imageRel}";
 338                 $wgSharedUploadPath = "$wgUploadPath/shared";
 339                 $wgMaxCredits = -1;
 340                 $wgHideInterlanguageLinks = !$this->interwiki;
 341                 $wgThumbnailScriptPath = $wgSharedThumbnailScriptPath = false;
 342                 $wgEnableParserCache = false;
 343                 $wgMathPath = "$wgScriptPath/math";
 344
 345                 if ( !empty( $wgRightsText ) ) {
 346                         $wgRightsUrl = "$wgScriptPath/COPYING.html";
 347                 }
 348
 349                 $wgUser = new User;
 350                 $wgUser->setOption( 'skin', $this->skin );
 351                 $wgUser->setOption( 'editsection', 0 );
 352
 353                 $this->sharedStaticPath = "$wgUploadDirectory/shared";
 354
 355                 $this->setupDone = true;
 356         }
 357
 358         /** Reads the content of a title object, executes the skin and captures the result */
 359         function getArticleHTML( &$title ) {
 360                 global $wgOut, $wgTitle, $wgArticle, $wgUser;
 361
 362                 $linkCache =& LinkCache::singleton();
 363                 $linkCache->clear();
 364                 $wgTitle = $title;
 365                 if ( is_null( $wgTitle ) ) {
 366                         return false;
 367                 }
 368
 369                 $ns = $wgTitle->getNamespace();
 370                 if ( $ns == NS_SPECIAL ) {
 371                         $wgOut = new OutputPage;
 372                         $wgOut->setParserOptions( new ParserOptions );
 373                         SpecialPage::executePath( $wgTitle );
 374                 } else {
 375                         /** @todo merge with Wiki.php code */
 376                         if ( $ns == NS_IMAGE ) {
 377                                 $wgArticle = new ImagePage( $wgTitle );
 378                         } elseif ( $ns == NS_CATEGORY ) {
 379                                 $wgArticle = new CategoryPage( $wgTitle );
 380                         } else {
 381                                 $wgArticle = new Article( $wgTitle );
 382                         }
 383                         $rt = Title::newFromRedirect( $wgArticle->fetchContent() );
 384                         if ( $rt != NULL ) {
 385                                 return $this->getRedirect( $rt );
 386                         } else {
 387                                 $wgOut = new OutputPage;
 388                                 $wgOut->setParserOptions( new ParserOptions );
 389
 390                                 $wgArticle->view();
 391                         }
 392                 }
 393
 394                 $sk =& $wgUser->getSkin();
 395                 ob_start();
 396                 $sk->outputPage( $wgOut );
 397                 $text = ob_get_contents();
 398                 ob_end_clean();
 399
 400                 return $text;
 401         }
 402
 403         function getRedirect( $rt ) {
 404                 $url = $rt->escapeLocalURL();
 405                 $text = $rt->getPrefixedText();
 406                 return <<<ENDTEXT
 407 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 408 <html xmlns="http://www.w3.org/1999/xhtml">
 409 <head>
 410   <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 411   <meta http-equiv="Refresh" content="0;url=$url" />
 412 </head>
 413 <body>
 414   <p>Redirecting to <a href="$url">$text</a></p>
 415 </body>
 416 </html>
 417 ENDTEXT;
 418         }
 419
 420         /** Returns image paths used in an XHTML document */
 421         function findImages( $text ) {
 422                 global $wgOutputEncoding, $wgDumpImages;
 423                 $parser = xml_parser_create( $wgOutputEncoding );
 424                 xml_set_element_handler( $parser, 'wfDumpStartTagHandler', 'wfDumpEndTagHandler' );
 425
 426                 $wgDumpImages = array();
 427                 xml_parse( $parser, $text );
 428                 xml_parser_free( $parser );
 429
 430                 return $wgDumpImages;
 431         }
 432
 433         /**
 434          * Copy images (or create symlinks) from commons to a static directory.
 435          * This is necessary even if you intend to distribute all of commons, because
 436          * the directory contents is used to work out which image description pages
 437          * are needed.
 438          *
 439          * Also copies math images
 440          *
 441          */
 442         function copyImages( $images ) {
 443                 global $wgSharedUploadPath, $wgSharedUploadDirectory, $wgMathPath, $wgMathDirectory;
 444                 # Find shared uploads and copy them into the static directory
 445                 $sharedPathLength = strlen( $wgSharedUploadPath );
 446                 $mathPathLength = strlen( $wgMathPath );
 447                 foreach ( $images as $escapedImage => $dummy ) {
 448                         $image = urldecode( $escapedImage );
 449
 450                         # Is it shared?
 451                         if ( substr( $image, 0, $sharedPathLength ) == $wgSharedUploadPath ) {
 452                                 # Reconstruct full filename
 453                                 $rel = substr( $image, $sharedPathLength + 1 ); // +1 for slash
 454                                 $sourceLoc = "$wgSharedUploadDirectory/$rel";
 455                                 $staticLoc = "{$this->sharedStaticPath}/$rel";
 456                                 #print "Copying $sourceLoc to $staticLoc\n";
 457                                 # Copy to static directory
 458                                 if ( !file_exists( $staticLoc ) ) {
 459                                         wfMkdirParents( dirname( $staticLoc ), 0755 );
 460                                         if ( function_exists( 'symlink' ) && !$this->forceCopy ) {
 461                                                 symlink( $sourceLoc, $staticLoc );
 462                                         } else {
 463                                                 copy( $sourceLoc, $staticLoc );
 464                                         }
 465                                 }
 466
 467                                 if ( substr( $rel, 0, 6 ) == 'thumb/' ) {
 468                                         # That was a thumbnail
 469                                         # We will also copy the real image
 470                                         $parts = explode( '/', $rel );
 471                                         $rel = "{$parts[1]}/{$parts[2]}/{$parts[3]}";
 472                                         $sourceLoc = "$wgSharedUploadDirectory/$rel";
 473                                         $staticLoc = "{$this->sharedStaticPath}/$rel";
 474                                         #print "Copying $sourceLoc to $staticLoc\n";
 475                                         if ( !file_exists( $staticLoc ) ) {
 476                                                 wfMkdirParents( dirname( $staticLoc ), 0755 );
 477                                                 if ( function_exists( 'symlink' ) && !$this->forceCopy ) {
 478                                                         symlink( $sourceLoc, $staticLoc );
 479                                                 } else {
 480                                                         copy( $sourceLoc, $staticLoc );
 481                                                 }
 482                                         }
 483                                 }
 484                         } else
 485                         # Is it math?
 486                         if ( substr( $image, 0, $mathPathLength ) == $wgMathPath ) {
 487                                 $rel = substr( $image, $mathPathLength + 1 ); // +1 for slash
 488                                 $source = "$wgMathDirectory/$rel";
 489                                 $dest = "{$this->dest}/math/$rel";
 490                                 @mkdir( "{$this->dest}/math", 0755 );
 491                                 if ( !file_exists( $dest ) ) {
 492                                         copy( $source, $dest );
 493                                 }
 494                         }
 495                 }
 496         }
 497
 498         function onGetFullURL( &$title, &$url, $query ) {
 499                 global $wgContLang, $wgArticlePath;
 500
 501                 $iw = $title->getInterwiki();
 502                 if ( $title->isExternal() && $wgContLang->getLanguageName( $iw ) ) {
 503                         if ( $title->getDBkey() == '' ) {
 504                                 $url = str_replace( '$1', "../$iw/index.html", $wgArticlePath );
 505                         } else {
 506                                 $url = str_replace( '$1', "../$iw/" . wfUrlencode( $this->getHashedFilename( $title ) ),
 507                                         $wgArticlePath );
 508                         }
 509                         return false;
 510                 } else {
 511                         return true;
 512                 }
 513         }
 514
 515         function onGetLocalURL( &$title, &$url, $query ) {
 516                 global $wgArticlePath;
 517
 518                 if ( $title->isExternal() ) {
 519                         # Default is fine for interwiki
 520                         return true;
 521                 }
 522
 523                 $url = false;
 524                 if ( $query != '' ) {
 525                         parse_str( $query, $params );
 526                         if ( isset($params['action']) && $params['action'] == 'raw' ) {
 527                                 if ( $params['gen'] == 'css' || $params['gen'] == 'js' ) {
 528                                         $file = 'gen.' . $params['gen'];
 529                                 } else {
 530                                         $file = $this->getFriendlyName( $title->getPrefixedDBkey() );
 531                                         // Clean up Monobook.css etc.
 532                                         if ( preg_match( '/^(.*)\.(css|js)_[0-9a-f]{4}$/', $file, $matches ) ) {
 533                                                 $file = $matches[1] . '.' . $matches[2];
 534                                         }
 535                                 }
 536                                 $this->rawPages[$file] = array( $file, $title, $params );
 537                                 $url = str_replace( '$1', "raw/" . wfUrlencode( $file ), $wgArticlePath );
 538                         }
 539                 }
 540                 if ( $url === false ) {
 541                         $url = str_replace( '$1', wfUrlencode( $this->getHashedFilename( $title ) ), $wgArticlePath );
 542                 }
 543
 544                 return false;
 545         }
 546
 547         function getHashedFilename( &$title ) {
 548                 if ( '' != $title->mInterwiki ) {
 549                         $dbkey = $title->getDBkey();
 550                 } else {
 551                         $dbkey = $title->getPrefixedDBkey();
 552                 }
 553
 554                 $mainPage = Title::newMainPage();
 555                 if ( $mainPage->getPrefixedDBkey() == $dbkey ) {
 556                         return 'index.html';
 557                 }
 558
 559                 return $this->getHashedDirectory( $title ) . '/' .
 560                         $this->getFriendlyName( $dbkey ) . '.html';
 561         }
 562
 563         function getFriendlyName( $name ) {
 564                 global $wgLang;
 565                 # Replace illegal characters for Windows paths with underscores
 566                 $friendlyName = strtr( $name, '/\\*?"<>|~', '_________' );
 567
 568                 # Work out lower case form. We assume we're on a system with case-insensitive
 569                 # filenames, so unless the case is of a special form, we have to disambiguate
 570                 if ( function_exists( 'mb_strtolower' ) ) {
 571                         $lowerCase = $wgLang->ucfirst( mb_strtolower( $name ) );
 572                 } else {
 573                         $lowerCase = ucfirst( strtolower( $name ) );
 574                 }
 575
 576                 # Make it mostly unique
 577                 if ( $lowerCase != $friendlyName  ) {
 578                         $friendlyName .= '_' . substr(md5( $name ), 0, 4);
 579                 }
 580                 # Handle colon specially by replacing it with tilde
 581                 # Thus we reduce the number of paths with hashes appended
 582                 $friendlyName = str_replace( ':', '~', $friendlyName );
 583
 584                 return $friendlyName;
 585         }
 586
 587         /**
 588          * Get a relative directory for putting a title into
 589          */
 590         function getHashedDirectory( &$title ) {
 591                 if ( '' != $title->getInterwiki() ) {
 592                         $pdbk = $title->getDBkey();
 593                 } else {
 594                         $pdbk = $title->getPrefixedDBkey();
 595                 }
 596
 597                 # Find the first colon if there is one, use characters after it
 598                 $p = strpos( $pdbk, ':' );
 599                 if ( $p !== false ) {
 600                         $dbk = substr( $pdbk, $p + 1 );
 601                         $dbk = substr( $dbk, strspn( $dbk, '_' ) );
 602                 } else {
 603                         $dbk = $pdbk;
 604                 }
 605
 606                 # Split into characters
 607                 preg_match_all( '/./us', $dbk, $m );
 608
 609                 $chars = $m[0];
 610                 $length = count( $chars );
 611                 $dir = '';
 612
 613                 for ( $i = 0; $i < $this->depth; $i++ ) {
 614                         if ( $i ) {
 615                                 $dir .= '/';
 616                         }
 617                         if ( $i >= $length ) {
 618                                 $dir .= '_';
 619                         } else {
 620                                 $c = $chars[$i];
 621                                 if ( ord( $c ) >= 128 || preg_match( '/[a-zA-Z0-9!#$%&()+,[\]^_`{}-]/', $c ) ) {
 622                                         if ( function_exists( 'mb_strtolower' ) ) {
 623                                                 $dir .= mb_strtolower( $c );
 624                                         } else {
 625                                                 $dir .= strtolower( $c );
 626                                         }
 627                                 } else {
 628                                         $dir .= sprintf( "%02X", ord( $c ) );
 629                                 }
 630                         }
 631                 }
 632                 return $dir;
 633         }
 634
 635 }
 636
 637 /** XML parser callback */
 638 function wfDumpStartTagHandler( $parser, $name, $attribs ) {
 639         global $wgDumpImages;
 640
 641         if ( $name == 'IMG' && isset( $attribs['SRC'] ) ) {
 642                 $wgDumpImages[$attribs['SRC']] = true;
 643         }
 644 }
 645
 646 /** XML parser callback */
 647 function wfDumpEndTagHandler( $parser, $name ) {}
 648
 649 # vim: syn=php
 650 ?>