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                 wfSuppressWarnings();
 269                 $file = fopen( $fullName, 'w' );
 270                 wfRestoreWarnings();
 271
 272                 if ( !$file ) {
 273                         die("Can't open file '$fullName' for writing.\nCheck permissions or use another destination (-d).\n");
 274                         return;
 275                 }
 276
 277                 fwrite( $file, $text );
 278                 fclose( $file );
 279         }
 280
 281         /** Set up globals required for parsing */
 282         function setupGlobals( $currentDepth = NULL ) {
 283                 global $wgUser, $wgTitle, $wgStylePath, $wgArticlePath, $wgMathPath;
 284                 global $wgUploadPath, $wgLogo, $wgMaxCredits, $wgSharedUploadPath;
 285                 global $wgHideInterlanguageLinks, $wgUploadDirectory, $wgThumbnailScriptPath;
 286                 global $wgSharedThumbnailScriptPath, $wgEnableParserCache, $wgHooks, $wgServer;
 287                 global $wgRightsUrl, $wgRightsText, $wgCopyrightIcon;
 288
 289                 static $oldLogo = NULL;
 290
 291                 if ( !$this->setupDone ) {
 292                         $wgHooks['GetLocalURL'][] =& $this;
 293                         $wgHooks['GetFullURL'][] =& $this;
 294                         $this->oldArticlePath = $wgServer . $wgArticlePath;
 295                 }
 296
 297                 if ( is_null( $currentDepth ) ) {
 298                         $currentDepth = $this->depth;
 299                 }
 300
 301                 if ( $this->alternateScriptPath ) {
 302                         if ( $currentDepth == 0 ) {
 303                                 $wgScriptPath = '.';
 304                         } else {
 305                                 $wgScriptPath = '..' . str_repeat( '/..', $currentDepth - 1 );
 306                         }
 307                 } else {
 308                         $wgScriptPath = '..' . str_repeat( '/..', $currentDepth );
 309                 }
 310
 311                 $wgArticlePath = str_repeat( '../', $currentDepth ) . '$1';
 312
 313                 # Logo image
 314                 # Allow for repeated setup
 315                 if ( !is_null( $oldLogo ) ) {
 316                         $wgLogo = $oldLogo;
 317                 } else {
 318                         $oldLogo = $wgLogo;
 319                 }
 320
 321                 if ( strpos( $wgLogo, $wgUploadPath ) === 0 ) {
 322                         # If it's in the upload directory, rewrite it to the new upload directory
 323                         $wgLogo = "$wgScriptPath/{$this->imageRel}/" . substr( $wgLogo, strlen( $wgUploadPath ) + 1 );
 324                 } elseif ( $wgLogo{0} == '/' ) {
 325                         # This is basically heuristic
 326                         # Rewrite an absolute logo path to one relative to the the script path
 327                         $wgLogo = $wgScriptPath . $wgLogo;
 328                 }
 329
 330                 # Another ugly hack
 331                 if ( !$this->setupDone ) {
 332                         $this->oldCopyrightIcon = $wgCopyrightIcon;
 333                 }
 334                 $wgCopyrightIcon = str_replace( 'src="/images',
 335                         'src="' . htmlspecialchars( $wgScriptPath ) . '/images', $this->oldCopyrightIcon );
 336
 337
 338
 339                 $wgStylePath = "$wgScriptPath/skins";
 340                 $wgUploadPath = "$wgScriptPath/{$this->imageRel}";
 341                 $wgSharedUploadPath = "$wgUploadPath/shared";
 342                 $wgMaxCredits = -1;
 343                 $wgHideInterlanguageLinks = !$this->interwiki;
 344                 $wgThumbnailScriptPath = $wgSharedThumbnailScriptPath = false;
 345                 $wgEnableParserCache = false;
 346                 $wgMathPath = "$wgScriptPath/math";
 347
 348                 if ( !empty( $wgRightsText ) ) {
 349                         $wgRightsUrl = "$wgScriptPath/COPYING.html";
 350                 }
 351
 352                 $wgUser = new User;
 353                 $wgUser->setOption( 'skin', $this->skin );
 354                 $wgUser->setOption( 'editsection', 0 );
 355
 356                 $this->sharedStaticPath = "$wgUploadDirectory/shared";
 357
 358                 $this->setupDone = true;
 359         }
 360
 361         /** Reads the content of a title object, executes the skin and captures the result */
 362         function getArticleHTML( &$title ) {
 363                 global $wgOut, $wgTitle, $wgArticle, $wgUser;
 364
 365                 $linkCache =& LinkCache::singleton();
 366                 $linkCache->clear();
 367                 $wgTitle = $title;
 368                 if ( is_null( $wgTitle ) ) {
 369                         return false;
 370                 }
 371
 372                 $ns = $wgTitle->getNamespace();
 373                 if ( $ns == NS_SPECIAL ) {
 374                         $wgOut = new OutputPage;
 375                         $wgOut->setParserOptions( new ParserOptions );
 376                         SpecialPage::executePath( $wgTitle );
 377                 } else {
 378                         /** @todo merge with Wiki.php code */
 379                         if ( $ns == NS_IMAGE ) {
 380                                 $wgArticle = new ImagePage( $wgTitle );
 381                         } elseif ( $ns == NS_CATEGORY ) {
 382                                 $wgArticle = new CategoryPage( $wgTitle );
 383                         } else {
 384                                 $wgArticle = new Article( $wgTitle );
 385                         }
 386                         $rt = Title::newFromRedirect( $wgArticle->fetchContent() );
 387                         if ( $rt != NULL ) {
 388                                 return $this->getRedirect( $rt );
 389                         } else {
 390                                 $wgOut = new OutputPage;
 391                                 $wgOut->setParserOptions( new ParserOptions );
 392
 393                                 $wgArticle->view();
 394                         }
 395                 }
 396
 397                 $sk =& $wgUser->getSkin();
 398                 ob_start();
 399                 $sk->outputPage( $wgOut );
 400                 $text = ob_get_contents();
 401                 ob_end_clean();
 402
 403                 return $text;
 404         }
 405
 406         function getRedirect( $rt ) {
 407                 $url = $rt->escapeLocalURL();
 408                 $text = $rt->getPrefixedText();
 409                 return <<<ENDTEXT
 410 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 411 <html xmlns="http://www.w3.org/1999/xhtml">
 412 <head>
 413   <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 414   <meta http-equiv="Refresh" content="0;url=$url" />
 415 </head>
 416 <body>
 417   <p>Redirecting to <a href="$url">$text</a></p>
 418 </body>
 419 </html>
 420 ENDTEXT;
 421         }
 422
 423         /** Returns image paths used in an XHTML document */
 424         function findImages( $text ) {
 425                 global $wgOutputEncoding, $wgDumpImages;
 426                 $parser = xml_parser_create( $wgOutputEncoding );
 427                 xml_set_element_handler( $parser, 'wfDumpStartTagHandler', 'wfDumpEndTagHandler' );
 428
 429                 $wgDumpImages = array();
 430                 xml_parse( $parser, $text );
 431                 xml_parser_free( $parser );
 432
 433                 return $wgDumpImages;
 434         }
 435
 436         /**
 437          * Copy images (or create symlinks) from commons to a static directory.
 438          * This is necessary even if you intend to distribute all of commons, because
 439          * the directory contents is used to work out which image description pages
 440          * are needed.
 441          *
 442          * Also copies math images
 443          *
 444          */
 445         function copyImages( $images ) {
 446                 global $wgSharedUploadPath, $wgSharedUploadDirectory, $wgMathPath, $wgMathDirectory;
 447                 # Find shared uploads and copy them into the static directory
 448                 $sharedPathLength = strlen( $wgSharedUploadPath );
 449                 $mathPathLength = strlen( $wgMathPath );
 450                 foreach ( $images as $escapedImage => $dummy ) {
 451                         $image = urldecode( $escapedImage );
 452
 453                         # Is it shared?
 454                         if ( substr( $image, 0, $sharedPathLength ) == $wgSharedUploadPath ) {
 455                                 # Reconstruct full filename
 456                                 $rel = substr( $image, $sharedPathLength + 1 ); // +1 for slash
 457                                 $sourceLoc = "$wgSharedUploadDirectory/$rel";
 458                                 $staticLoc = "{$this->sharedStaticPath}/$rel";
 459                                 #print "Copying $sourceLoc to $staticLoc\n";
 460                                 # Copy to static directory
 461                                 if ( !file_exists( $staticLoc ) ) {
 462                                         wfMkdirParents( dirname( $staticLoc ), 0755 );
 463                                         if ( function_exists( 'symlink' ) && !$this->forceCopy ) {
 464                                                 symlink( $sourceLoc, $staticLoc );
 465                                         } else {
 466                                                 copy( $sourceLoc, $staticLoc );
 467                                         }
 468                                 }
 469
 470                                 if ( substr( $rel, 0, 6 ) == 'thumb/' ) {
 471                                         # That was a thumbnail
 472                                         # We will also copy the real image
 473                                         $parts = explode( '/', $rel );
 474                                         $rel = "{$parts[1]}/{$parts[2]}/{$parts[3]}";
 475                                         $sourceLoc = "$wgSharedUploadDirectory/$rel";
 476                                         $staticLoc = "{$this->sharedStaticPath}/$rel";
 477                                         #print "Copying $sourceLoc to $staticLoc\n";
 478                                         if ( !file_exists( $staticLoc ) ) {
 479                                                 wfMkdirParents( dirname( $staticLoc ), 0755 );
 480                                                 if ( function_exists( 'symlink' ) && !$this->forceCopy ) {
 481                                                         symlink( $sourceLoc, $staticLoc );
 482                                                 } else {
 483                                                         copy( $sourceLoc, $staticLoc );
 484                                                 }
 485                                         }
 486                                 }
 487                         } else
 488                         # Is it math?
 489                         if ( substr( $image, 0, $mathPathLength ) == $wgMathPath ) {
 490                                 $rel = substr( $image, $mathPathLength + 1 ); // +1 for slash
 491                                 $source = "$wgMathDirectory/$rel";
 492                                 $dest = "{$this->dest}/math/$rel";
 493                                 @mkdir( "{$this->dest}/math", 0755 );
 494                                 if ( !file_exists( $dest ) ) {
 495                                         copy( $source, $dest );
 496                                 }
 497                         }
 498                 }
 499         }
 500
 501         function onGetFullURL( &$title, &$url, $query ) {
 502                 global $wgContLang, $wgArticlePath;
 503
 504                 $iw = $title->getInterwiki();
 505                 if ( $title->isExternal() && $wgContLang->getLanguageName( $iw ) ) {
 506                         if ( $title->getDBkey() == '' ) {
 507                                 $url = str_replace( '$1', "../$iw/index.html", $wgArticlePath );
 508                         } else {
 509                                 $url = str_replace( '$1', "../$iw/" . wfUrlencode( $this->getHashedFilename( $title ) ),
 510                                         $wgArticlePath );
 511                         }
 512                         return false;
 513                 } else {
 514                         return true;
 515                 }
 516         }
 517
 518         function onGetLocalURL( &$title, &$url, $query ) {
 519                 global $wgArticlePath;
 520
 521                 if ( $title->isExternal() ) {
 522                         # Default is fine for interwiki
 523                         return true;
 524                 }
 525
 526                 $url = false;
 527                 if ( $query != '' ) {
 528                         parse_str( $query, $params );
 529                         if ( isset($params['action']) && $params['action'] == 'raw' ) {
 530                                 if ( $params['gen'] == 'css' || $params['gen'] == 'js' ) {
 531                                         $file = 'gen.' . $params['gen'];
 532                                 } else {
 533                                         $file = $this->getFriendlyName( $title->getPrefixedDBkey() );
 534                                         // Clean up Monobook.css etc.
 535                                         if ( preg_match( '/^(.*)\.(css|js)_[0-9a-f]{4}$/', $file, $matches ) ) {
 536                                                 $file = $matches[1] . '.' . $matches[2];
 537                                         }
 538                                 }
 539                                 $this->rawPages[$file] = array( $file, $title, $params );
 540                                 $url = str_replace( '$1', "raw/" . wfUrlencode( $file ), $wgArticlePath );
 541                         }
 542                 }
 543                 if ( $url === false ) {
 544                         $url = str_replace( '$1', wfUrlencode( $this->getHashedFilename( $title ) ), $wgArticlePath );
 545                 }
 546
 547                 return false;
 548         }
 549
 550         function getHashedFilename( &$title ) {
 551                 if ( '' != $title->mInterwiki ) {
 552                         $dbkey = $title->getDBkey();
 553                 } else {
 554                         $dbkey = $title->getPrefixedDBkey();
 555                 }
 556
 557                 $mainPage = Title::newMainPage();
 558                 if ( $mainPage->getPrefixedDBkey() == $dbkey ) {
 559                         return 'index.html';
 560                 }
 561
 562                 return $this->getHashedDirectory( $title ) . '/' .
 563                         $this->getFriendlyName( $dbkey ) . '.html';
 564         }
 565
 566         function getFriendlyName( $name ) {
 567                 global $wgLang;
 568                 # Replace illegal characters for Windows paths with underscores
 569                 $friendlyName = strtr( $name, '/\\*?"<>|~', '_________' );
 570
 571                 # Work out lower case form. We assume we're on a system with case-insensitive
 572                 # filenames, so unless the case is of a special form, we have to disambiguate
 573                 if ( function_exists( 'mb_strtolower' ) ) {
 574                         $lowerCase = $wgLang->ucfirst( mb_strtolower( $name ) );
 575                 } else {
 576                         $lowerCase = ucfirst( strtolower( $name ) );
 577                 }
 578
 579                 # Make it mostly unique
 580                 if ( $lowerCase != $friendlyName  ) {
 581                         $friendlyName .= '_' . substr(md5( $name ), 0, 4);
 582                 }
 583                 # Handle colon specially by replacing it with tilde
 584                 # Thus we reduce the number of paths with hashes appended
 585                 $friendlyName = str_replace( ':', '~', $friendlyName );
 586
 587                 return $friendlyName;
 588         }
 589
 590         /**
 591          * Get a relative directory for putting a title into
 592          */
 593         function getHashedDirectory( &$title ) {
 594                 if ( '' != $title->getInterwiki() ) {
 595                         $pdbk = $title->getDBkey();
 596                 } else {
 597                         $pdbk = $title->getPrefixedDBkey();
 598                 }
 599
 600                 # Find the first colon if there is one, use characters after it
 601                 $p = strpos( $pdbk, ':' );
 602                 if ( $p !== false ) {
 603                         $dbk = substr( $pdbk, $p + 1 );
 604                         $dbk = substr( $dbk, strspn( $dbk, '_' ) );
 605                 } else {
 606                         $dbk = $pdbk;
 607                 }
 608
 609                 # Split into characters
 610                 preg_match_all( '/./us', $dbk, $m );
 611
 612                 $chars = $m[0];
 613                 $length = count( $chars );
 614                 $dir = '';
 615
 616                 for ( $i = 0; $i < $this->depth; $i++ ) {
 617                         if ( $i ) {
 618                                 $dir .= '/';
 619                         }
 620                         if ( $i >= $length ) {
 621                                 $dir .= '_';
 622                         } else {
 623                                 $c = $chars[$i];
 624                                 if ( ord( $c ) >= 128 || preg_match( '/[a-zA-Z0-9!#$%&()+,[\]^_`{}-]/', $c ) ) {
 625                                         if ( function_exists( 'mb_strtolower' ) ) {
 626                                                 $dir .= mb_strtolower( $c );
 627                                         } else {
 628                                                 $dir .= strtolower( $c );
 629                                         }
 630                                 } else {
 631                                         $dir .= sprintf( "%02X", ord( $c ) );
 632                                 }
 633                         }
 634                 }
 635                 return $dir;
 636         }
 637
 638 }
 639
 640 /** XML parser callback */
 641 function wfDumpStartTagHandler( $parser, $name, $attribs ) {
 642         global $wgDumpImages;
 643
 644         if ( $name == 'IMG' && isset( $attribs['SRC'] ) ) {
 645                 $wgDumpImages[$attribs['SRC']] = true;
 646         }
 647 }
 648
 649 /** XML parser callback */
 650 function wfDumpEndTagHandler( $parser, $name ) {}
 651
 652 # vim: syn=php
 653 ?>