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         function DumpHTML( $settings ) {
  46                 foreach ( $settings as $var => $value ) {
  47                         $this->$var = $value;
  48                 }
  49         }
  50
  51         /**
  52          * Write a set of articles specified by start and end page_id
  53          * Skip categories and images, they will be done separately
  54          */
  55         function doArticles( $start, $end = false ) {
  56                 $fname = 'DumpHTML::doArticles';
  57
  58                 $this->setupGlobals();
  59
  60                 if ( $end === false ) {
  61                         $dbr =& wfGetDB( DB_SLAVE );
  62                         $end = $dbr->selectField( 'page', 'max(page_id)', false, $fname );
  63                 }
  64
  65                 $mainPageObj = Title::newMainPage();
  66                 $mainPage = $mainPageObj->getPrefixedDBkey();
  67
  68
  69                 for ($id = $start; $id <= $end; $id++) {
  70                         wfWaitForSlaves( 20 );
  71                         if ( !($id % REPORTING_INTERVAL) ) {
  72                                 print "Processing ID: $id\r";
  73                         }
  74                         if ( !($id % (REPORTING_INTERVAL*10) ) ) {
  75                                 print "\n";
  76                         }
  77                         $title = Title::newFromID( $id );
  78                         if ( $title ) {
  79                                 $ns = $title->getNamespace() ;
  80                                 if ( $ns != NS_CATEGORY && $title->getPrefixedDBkey() != $mainPage ) {
  81                                         $this->doArticle( $title );
  82                                 }
  83                         }
  84                 }
  85                 print "\n";
  86         }
  87
  88         function doSpecials() {
  89                 $this->doMainPage();
  90
  91                 $this->setupGlobals();
  92                 print "Special:Categories...";
  93                 $this->doArticle( Title::makeTitle( NS_SPECIAL, 'Categories' ) );
  94                 print "\n";
  95         }
  96
  97         /** Write the main page as index.html */
  98         function doMainPage() {
  99
 100                 print "Making index.html  ";
 101
 102                 // Set up globals with no ../../.. in the link URLs
 103                 $this->setupGlobals( 0 );
 104
 105                 $title = Title::newMainPage();
 106                 $text = $this->getArticleHTML( $title );
 107                 $file = fopen( "{$this->dest}/index.html", "w" );
 108                 if ( !$file ) {
 109                         print "\nCan't open index.html for writing\n";
 110                         return false;
 111                 }
 112                 fwrite( $file, $text );
 113                 fclose( $file );
 114                 print "\n";
 115         }
 116
 117         function doImageDescriptions() {
 118                 global $wgSharedUploadDirectory;
 119
 120                 $fname = 'DumpHTML::doImageDescriptions';
 121
 122                 $this->setupGlobals();
 123
 124                 /**
 125                  * Dump image description pages that don't have an associated article, but do
 126                  * have a local image
 127                  */
 128                 $dbr =& wfGetDB( DB_SLAVE );
 129                 extract( $dbr->tableNames( 'image', 'page' ) );
 130                 $res = $dbr->select( 'image', array( 'img_name' ), false, $fname );
 131
 132                 $i = 0;
 133                 print "Writing image description pages for local images\n";
 134                 $num = $dbr->numRows( $res );
 135                 while ( $row = $dbr->fetchObject( $res ) ) {
 136                         wfWaitForSlaves( 10 );
 137                         if ( !( ++$i % REPORTING_INTERVAL ) ) {
 138                                 print "Done $i of $num\r";
 139                         }
 140                         $title = Title::makeTitle( NS_IMAGE, $row->img_name );
 141                         if ( $title->getArticleID() ) {
 142                                 // Already done by dumpHTML
 143                                 continue;
 144                         }
 145                         $this->doArticle( $title );
 146                 }
 147                 print "\n";
 148
 149                 /**
 150                  * Dump images which only have a real description page on commons
 151                  */
 152                 print "Writing description pages for commons images\n";
 153                 $i = 0;
 154                 for ( $hash = 0; $hash < 256; $hash++ ) {
 155                         $dir = sprintf( "%01x/%02x", intval( $hash / 16 ), $hash );
 156                         $paths = array_merge( glob( "{$this->sharedStaticPath}/$dir/*" ),
 157                                 glob( "{$this->sharedStaticPath}/thumb/$dir/*" ) );
 158
 159                         foreach ( $paths as $path ) {
 160                                 $file = basename( $path );
 161                                 if ( !(++$i % REPORTING_INTERVAL ) ) {
 162                                         print "$i\r";
 163                                 }
 164
 165                                 $title = Title::makeTitle( NS_IMAGE, $file );
 166                                 $this->doArticle( $title );
 167                         }
 168                 }
 169                 print "\n";
 170         }
 171
 172         function doCategories() {
 173                 $fname = 'DumpHTML::doCategories';
 174                 $this->setupGlobals();
 175
 176                 $dbr =& wfGetDB( DB_SLAVE );
 177                 $categorylinks = $dbr->tableName( 'categorylinks' );
 178                 print "Selecting categories...";
 179                 $sql = 'SELECT DISTINCT cl_to FROM categorylinks';
 180                 $res = $dbr->query( $sql, $fname );
 181
 182                 print "\nWriting " . $dbr->numRows( $res ).  " category pages\n";
 183                 $i = 0;
 184                 while ( $row = $dbr->fetchObject( $res ) ) {
 185                         wfWaitForSlaves( 10 );
 186                         if ( !(++$i % REPORTING_INTERVAL ) ) {
 187                                 print "$i\r";
 188                         }
 189                         $title = Title::makeTitle( NS_CATEGORY, $row->cl_to );
 190                         $this->doArticle( $title );
 191                 }
 192                 print "\n";
 193         }
 194
 195         function doRedirects() {
 196                 global $wgLinkCache;
 197
 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;
 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                 $wgHideInterlangageLinks = !$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', 'htmldump' );
 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, $wgUseCategoryMagic, $wgLinkCache;
 361
 362                 $wgTitle = $title;
 363                 if ( is_null( $wgTitle ) ) {
 364                         return false;
 365                 }
 366
 367                 $ns = $wgTitle->getNamespace();
 368                 if ( $ns == NS_SPECIAL ) {
 369                         $wgOut = new OutputPage;
 370                         $wgOut->setParserOptions( new ParserOptions );
 371                         $wgLinkCache = new LinkCache;
 372                         SpecialPage::executePath( $wgTitle );
 373                 } else {
 374                         if ( $ns == NS_IMAGE ) {
 375                                 $wgArticle = new ImagePage( $wgTitle );
 376                         } elseif ( $wgUseCategoryMagic && $ns == NS_CATEGORY ) {
 377                                 $wgArticle = new CategoryPage( $wgTitle );
 378                         } else {
 379                                 $wgArticle = new Article( $wgTitle );
 380                         }
 381                         $rt = Title::newFromRedirect( $wgArticle->fetchContent() );
 382                         if ( $rt != NULL ) {
 383                                 return $this->getRedirect( $rt );
 384                         } else {
 385                                 $wgOut = new OutputPage;
 386                                 $wgOut->setParserOptions( new ParserOptions );
 387                                 $wgLinkCache = new LinkCache;
 388
 389                                 $wgArticle->view();
 390                         }
 391                 }
 392
 393                 $sk =& $wgUser->getSkin();
 394                 ob_start();
 395                 $sk->outputPage( $wgOut );
 396                 $text = ob_get_contents();
 397                 ob_end_clean();
 398
 399                 return $text;
 400         }
 401
 402         function getRedirect( $rt ) {
 403                 $url = $rt->escapeLocalURL();
 404                 $text = $rt->getPrefixedText();
 405                 return <<<ENDTEXT
 406 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 407 <html xmlns="http://www.w3.org/1999/xhtml">
 408 <head>
 409   <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 410   <meta http-equiv="Refresh" content="0;url=$url" />
 411 </head>
 412 <body>
 413   <p>Redirecting to <a href="$url">$text</a></p>
 414 </body>
 415 </html>
 416 ENDTEXT;
 417         }
 418
 419         /** Returns image paths used in an XHTML document */
 420         function findImages( $text ) {
 421                 global $wgOutputEncoding, $wgDumpImages;
 422                 $parser = xml_parser_create( $wgOutputEncoding );
 423                 xml_set_element_handler( $parser, 'wfDumpStartTagHandler', 'wfDumpEndTagHandler' );
 424
 425                 $wgDumpImages = array();
 426                 xml_parse( $parser, $text );
 427                 xml_parser_free( $parser );
 428
 429                 return $wgDumpImages;
 430         }
 431
 432         /**
 433          * Copy images (or create symlinks) from commons to a static directory.
 434          * This is necessary even if you intend to distribute all of commons, because
 435          * the directory contents is used to work out which image description pages
 436          * are needed.
 437          *
 438          * Also copies math images
 439          *
 440          */
 441         function copyImages( $images ) {
 442                 global $wgSharedUploadPath, $wgSharedUploadDirectory, $wgMathPath, $wgMathDirectory;
 443                 # Find shared uploads and copy them into the static directory
 444                 $sharedPathLength = strlen( $wgSharedUploadPath );
 445                 $mathPathLength = strlen( $wgMathPath );
 446                 foreach ( $images as $escapedImage => $dummy ) {
 447                         $image = urldecode( $escapedImage );
 448
 449                         # Is it shared?
 450                         if ( substr( $image, 0, $sharedPathLength ) == $wgSharedUploadPath ) {
 451                                 # Reconstruct full filename
 452                                 $rel = substr( $image, $sharedPathLength + 1 ); // +1 for slash
 453                                 $sourceLoc = "$wgSharedUploadDirectory/$rel";
 454                                 $staticLoc = "{$this->sharedStaticPath}/$rel";
 455                                 #print "Copying $sourceLoc to $staticLoc\n";
 456                                 # Copy to static directory
 457                                 if ( !file_exists( $staticLoc ) ) {
 458                                         wfMkdirParents( dirname( $staticLoc ), 0755 );
 459                                         if ( function_exists( 'symlink' ) && !$this->forceCopy ) {
 460                                                 symlink( $sourceLoc, $staticLoc );
 461                                         } else {
 462                                                 copy( $sourceLoc, $staticLoc );
 463                                         }
 464                                 }
 465
 466                                 if ( substr( $rel, 0, 6 ) == 'thumb/' ) {
 467                                         # That was a thumbnail
 468                                         # We will also copy the real image
 469                                         $parts = explode( '/', $rel );
 470                                         $rel = "{$parts[1]}/{$parts[2]}/{$parts[3]}";
 471                                         $sourceLoc = "$wgSharedUploadDirectory/$rel";
 472                                         $staticLoc = "{$this->sharedStaticPath}/$rel";
 473                                         #print "Copying $sourceLoc to $staticLoc\n";
 474                                         if ( !file_exists( $staticLoc ) ) {
 475                                                 wfMkdirParents( dirname( $staticLoc ), 0755 );
 476                                                 if ( function_exists( 'symlink' ) && !$this->forceCopy ) {
 477                                                         symlink( $sourceLoc, $staticLoc );
 478                                                 } else {
 479                                                         copy( $sourceLoc, $staticLoc );
 480                                                 }
 481                                         }
 482                                 }
 483                         } else
 484                         # Is it math?
 485                         if ( substr( $image, 0, $mathPathLength ) == $wgMathPath ) {
 486                                 $rel = substr( $image, $mathPathLength + 1 ); // +1 for slash
 487                                 $source = "$wgMathDirectory/$rel";
 488                                 $dest = "{$this->dest}/math/$rel";
 489                                 @mkdir( "{$this->dest}/math", 0755 );
 490                                 if ( !file_exists( $dest ) ) {
 491                                         copy( $source, $dest );
 492                                 }
 493                         }
 494                 }
 495         }
 496
 497         function onGetFullURL( &$title, &$url, $query ) {
 498                 global $wgContLang, $wgArticlePath;
 499
 500                 $iw = $title->getInterwiki();
 501                 if ( $title->isExternal() && $wgContLang->getLanguageName( $iw ) ) {
 502                         if ( $title->getDBkey() == '' ) {
 503                                 $url = str_replace( '$1', "../$iw/index.html", $wgArticlePath );
 504                         } else {
 505                                 $url = str_replace( '$1', "../$iw/" . wfUrlencode( $this->getHashedFilename( $title ) ),
 506                                         $wgArticlePath );
 507                         }
 508                         return false;
 509                 } else {
 510                         return true;
 511                 }
 512         }
 513
 514         function onGetLocalURL( &$title, &$url, $query ) {
 515                 global $wgArticlePath;
 516
 517                 if ( $title->isExternal() ) {
 518                         # Default is fine for interwiki
 519                         return true;
 520                 }
 521
 522                 $url = false;
 523                 if ( $query != '' ) {
 524                         parse_str( $query, $params );
 525                         if ( isset($params['action']) && $params['action'] == 'raw' ) {
 526                                 if ( $params['gen'] == 'css' || $params['gen'] == 'js' ) {
 527                                         $file = 'gen.' . $params['gen'];
 528                                 } else {
 529                                         $file = $this->getFriendlyName( $title->getPrefixedDBkey() );
 530                                         // Clean up Monobook.css etc.
 531                                         if ( preg_match( '/^(.*)\.(css|js)_[0-9a-f]{4}$/', $file, $matches ) ) {
 532                                                 $file = $matches[1] . '.' . $matches[2];
 533                                         }
 534                                 }
 535                                 $this->rawPages[$file] = array( $file, $title, $params );
 536                                 $url = str_replace( '$1', "raw/" . wfUrlencode( $file ), $wgArticlePath );
 537                         }
 538                 }
 539                 if ( $url === false ) {
 540                         $url = str_replace( '$1', wfUrlencode( $this->getHashedFilename( $title ) ), $wgArticlePath );
 541                 }
 542
 543                 return false;
 544         }
 545
 546         function getHashedFilename( &$title ) {
 547                 if ( '' != $title->mInterwiki ) {
 548                         $dbkey = $title->getDBkey();
 549                 } else {
 550                         $dbkey = $title->getPrefixedDBkey();
 551                 }
 552
 553                 $mainPage = Title::newMainPage();
 554                 if ( $mainPage->getPrefixedDBkey() == $dbkey ) {
 555                         return 'index.html';
 556                 }
 557
 558                 return $this->getHashedDirectory( $title ) . '/' .
 559                         $this->getFriendlyName( $dbkey ) . '.html';
 560         }
 561
 562         function getFriendlyName( $name ) {
 563                 global $wgLang;
 564                 # Replace illegal characters for Windows paths with underscores
 565                 $friendlyName = strtr( $name, '/\\*?"<>|~', '_________' );
 566
 567                 # Work out lower case form. We assume we're on a system with case-insensitive
 568                 # filenames, so unless the case is of a special form, we have to disambiguate
 569                 if ( function_exists( 'mb_strtolower' ) ) {
 570                         $lowerCase = $wgLang->ucfirst( mb_strtolower( $name ) );
 571                 } else {
 572                         $lowerCase = ucfirst( strtolower( $name ) );
 573                 }
 574
 575                 # Make it mostly unique
 576                 if ( $lowerCase != $friendlyName  ) {
 577                         $friendlyName .= '_' . substr(md5( $name ), 0, 4);
 578                 }
 579                 # Handle colon specially by replacing it with tilde
 580                 # Thus we reduce the number of paths with hashes appended
 581                 $friendlyName = str_replace( ':', '~', $friendlyName );
 582
 583                 return $friendlyName;
 584         }
 585
 586         /**
 587          * Get a relative directory for putting a title into
 588          */
 589         function getHashedDirectory( &$title ) {
 590                 if ( '' != $title->getInterwiki() ) {
 591                         $pdbk = $title->getDBkey();
 592                 } else {
 593                         $pdbk = $title->getPrefixedDBkey();
 594                 }
 595
 596                 # Find the first colon if there is one, use characters after it
 597                 $p = strpos( $pdbk, ':' );
 598                 if ( $p !== false ) {
 599                         $dbk = substr( $pdbk, $p + 1 );
 600                         $dbk = substr( $dbk, strspn( $dbk, '_' ) );
 601                 } else {
 602                         $dbk = $pdbk;
 603                 }
 604
 605                 # Split into characters
 606                 preg_match_all( '/./us', $dbk, $m );
 607
 608                 $chars = $m[0];
 609                 $length = count( $chars );
 610                 $dir = '';
 611
 612                 for ( $i = 0; $i < $this->depth; $i++ ) {
 613                         if ( $i ) {
 614                                 $dir .= '/';
 615                         }
 616                         if ( $i >= $length ) {
 617                                 $dir .= '_';
 618                         } else {
 619                                 $c = $chars[$i];
 620                                 if ( ord( $c ) >= 128 || preg_match( '/[a-zA-Z0-9!#$%&()+,[\]^_`{}-]/', $c ) ) {
 621                                         if ( function_exists( 'mb_strtolower' ) ) {
 622                                                 $dir .= mb_strtolower( $c );
 623                                         } else {
 624                                                 $dir .= strtolower( $c );
 625                                         }
 626                                 } else {
 627                                         $dir .= sprintf( "%02X", ord( $c ) );
 628                                 }
 629                         }
 630                 }
 631                 return $dir;
 632         }
 633
 634 }
 635
 636 /** XML parser callback */
 637 function wfDumpStartTagHandler( $parser, $name, $attribs ) {
 638         global $wgDumpImages;
 639
 640         if ( $name == 'IMG' && isset( $attribs['SRC'] ) ) {
 641                 $wgDumpImages[$attribs['SRC']] = true;
 642         }
 643 }
 644
 645 /** XML parser callback */
 646 function wfDumpEndTagHandler( $parser, $name ) {}
 647
 648 # vim: syn=php
 649 ?>