PukiWiki PHP Cross Reference Collaborative Wikis

Source: /lib/html.php - 545 lines - 17810 bytes - Summary - Text - Print

   1  <?php
   2  // PukiWiki - Yet another WikiWikiWeb clone.
   3  // $Id: html.php,v 1.57 2006/04/15 17:33:35 teanan Exp $
   4  // Copyright (C)
   5  //   2002-2006 PukiWiki Developers Team
   6  //   2001-2002 Originally written by yu-ji
   7  // License: GPL v2 or (at your option) any later version
   8  //
   9  // HTML-publishing related functions
  10  
  11  // Show page-content
  12  function catbody($title, $page, $body)
  13  {
  14      global $script, $vars, $arg, $defaultpage, $whatsnew, $help_page, $hr;
  15      global $attach_link, $related_link, $cantedit, $function_freeze;
  16      global $search_word_color, $_msg_word, $foot_explain, $note_hr, $head_tags;
  17      global $trackback, $trackback_javascript, $referer, $javascript;
  18      global $nofollow;
  19      global $_LANG, $_LINK, $_IMAGE;
  20  
  21      global $pkwk_dtd;     // XHTML 1.1, XHTML1.0, HTML 4.01 Transitional...
  22      global $page_title;   // Title of this site
  23      global $do_backup;    // Do backup or not
  24      global $modifier;     // Site administrator's  web page
  25      global $modifierlink; // Site administrator's name
  26  
  27      if (! file_exists(SKIN_FILE) || ! is_readable(SKIN_FILE))
  28          die_message('SKIN_FILE is not found');
  29  
  30      $_LINK = $_IMAGE = array();
  31  
  32      // Add JavaScript header when ...
  33      if ($trackback && $trackback_javascript) $javascript = 1; // Set something If you want
  34      if (! PKWK_ALLOW_JAVASCRIPT) unset($javascript);
  35  
  36      $_page  = isset($vars['page']) ? $vars['page'] : '';
  37      $r_page = rawurlencode($_page);
  38  
  39      // Set $_LINK for skin
  40      $_LINK['add']      = "$script?cmd=add&amp;page=$r_page";
  41      $_LINK['backup']   = "$script?cmd=backup&amp;page=$r_page";
  42      $_LINK['copy']     = "$script?plugin=template&amp;refer=$r_page";
  43      $_LINK['diff']     = "$script?cmd=diff&amp;page=$r_page";
  44      $_LINK['edit']     = "$script?cmd=edit&amp;page=$r_page";
  45      $_LINK['filelist'] = "$script?cmd=filelist";
  46      $_LINK['freeze']   = "$script?cmd=freeze&amp;page=$r_page";
  47      $_LINK['help']     = "$script?" . rawurlencode($help_page);
  48      $_LINK['list']     = "$script?cmd=list";
  49      $_LINK['new']      = "$script?plugin=newpage&amp;refer=$r_page";
  50      $_LINK['rdf']      = "$script?cmd=rss&amp;ver=1.0";
  51      $_LINK['recent']   = "$script?" . rawurlencode($whatsnew);
  52      $_LINK['refer']    = "$script?plugin=referer&amp;page=$r_page";
  53      $_LINK['reload']   = "$script?$r_page";
  54      $_LINK['rename']   = "$script?plugin=rename&amp;refer=$r_page";
  55      $_LINK['rss']      = "$script?cmd=rss";
  56      $_LINK['rss10']    = "$script?cmd=rss&amp;ver=1.0"; // Same as 'rdf'
  57      $_LINK['rss20']    = "$script?cmd=rss&amp;ver=2.0";
  58      $_LINK['search']   = "$script?cmd=search";
  59      $_LINK['top']      = "$script?" . rawurlencode($defaultpage);
  60      if ($trackback) {
  61          $tb_id = tb_get_id($_page);
  62          $_LINK['trackback'] = "$script?plugin=tb&amp;__mode=view&amp;tb_id=$tb_id";
  63      }
  64      $_LINK['unfreeze'] = "$script?cmd=unfreeze&amp;page=$r_page";
  65      $_LINK['upload']   = "$script?plugin=attach&amp;pcmd=upload&amp;page=$r_page";
  66  
  67      // Compat: Skins for 1.4.4 and before
  68      $link_add       = & $_LINK['add'];
  69      $link_new       = & $_LINK['new'];    // New!
  70      $link_edit      = & $_LINK['edit'];
  71      $link_diff      = & $_LINK['diff'];
  72      $link_top       = & $_LINK['top'];
  73      $link_list      = & $_LINK['list'];
  74      $link_filelist  = & $_LINK['filelist'];
  75      $link_search    = & $_LINK['search'];
  76      $link_whatsnew  = & $_LINK['recent'];
  77      $link_backup    = & $_LINK['backup'];
  78      $link_help      = & $_LINK['help'];
  79      $link_trackback = & $_LINK['trackback'];    // New!
  80      $link_rdf       = & $_LINK['rdf'];        // New!
  81      $link_rss       = & $_LINK['rss'];
  82      $link_rss10     = & $_LINK['rss10'];        // New!
  83      $link_rss20     = & $_LINK['rss20'];        // New!
  84      $link_freeze    = & $_LINK['freeze'];
  85      $link_unfreeze  = & $_LINK['unfreeze'];
  86      $link_upload    = & $_LINK['upload'];
  87      $link_template  = & $_LINK['copy'];
  88      $link_refer     = & $_LINK['refer'];    // New!
  89      $link_rename    = & $_LINK['rename'];
  90  
  91      // Init flags
  92      $is_page = (is_pagename($_page) && ! arg_check('backup') && $_page != $whatsnew);
  93      $is_read = (arg_check('read') && is_page($_page));
  94      $is_freeze = is_freeze($_page);
  95  
  96      // Last modification date (string) of the page
  97      $lastmodified = $is_read ?  format_date(get_filetime($_page)) .
  98          ' ' . get_pg_passage($_page, FALSE) : '';
  99  
 100      // List of attached files to the page
 101      $attaches = ($attach_link && $is_read && exist_plugin_action('attach')) ?
 102          attach_filelist() : '';
 103  
 104      // List of related pages
 105      $related  = ($related_link && $is_read) ? make_related($_page) : '';
 106  
 107      // List of footnotes
 108      ksort($foot_explain, SORT_NUMERIC);
 109      $notes = ! empty($foot_explain) ? $note_hr . join("\n", $foot_explain) : '';
 110  
 111      // Tags will be inserted into <head></head>
 112      $head_tag = ! empty($head_tags) ? join("\n", $head_tags) ."\n" : '';
 113  
 114      // 1.3.x compat
 115      // Last modification date (UNIX timestamp) of the page
 116      $fmt = $is_read ? get_filetime($_page) + LOCALZONE : 0;
 117  
 118      // Search words
 119      if ($search_word_color && isset($vars['word'])) {
 120          $body = '<div class="small">' . $_msg_word . htmlspecialchars($vars['word']) .
 121              '</div>' . $hr . "\n" . $body;
 122  
 123          // BugTrack2/106: Only variables can be passed by reference from PHP 5.0.5
 124          // with array_splice(), array_flip()
 125          $words = preg_split('/\s+/', $vars['word'], -1, PREG_SPLIT_NO_EMPTY);
 126          $words = array_splice($words, 0, 10); // Max: 10 words
 127          $words = array_flip($words);
 128  
 129          $keys = array();
 130          foreach ($words as $word=>$id) $keys[$word] = strlen($word);
 131          arsort($keys, SORT_NUMERIC);
 132          $keys = get_search_words(array_keys($keys), TRUE);
 133          $id = 0;
 134          foreach ($keys as $key=>$pattern) {
 135              $s_key    = htmlspecialchars($key);
 136              $pattern  = '/' .
 137                  '<textarea[^>]*>.*?<\/textarea>' .    // Ignore textareas
 138                  '|' . '<[^>]*>' .            // Ignore tags
 139                  '|' . '&[^;]+;' .            // Ignore entities
 140                  '|' . '(' . $pattern . ')' .        // $matches[1]: Regex for a search word
 141                  '/sS';
 142              $decorate_Nth_word = create_function(
 143                  '$matches',
 144                  'return (isset($matches[1])) ? ' .
 145                      '\'<strong class="word' .
 146                          $id .
 147                      '">\' . $matches[1] . \'</strong>\' : ' .
 148                      '$matches[0];'
 149              );
 150              $body  = preg_replace_callback($pattern, $decorate_Nth_word, $body);
 151              $notes = preg_replace_callback($pattern, $decorate_Nth_word, $notes);
 152              ++$id;
 153          }
 154      }
 155  
 156      $longtaketime = getmicrotime() - MUTIME;
 157      $taketime     = sprintf('%01.03f', $longtaketime);
 158  
 159      require(SKIN_FILE);
 160  }
 161  
 162  // Show 'edit' form
 163  function edit_form($page, $postdata, $digest = FALSE, $b_template = TRUE)
 164  {
 165      global $script, $vars, $rows, $cols, $hr, $function_freeze;
 166      global $_btn_preview, $_btn_repreview, $_btn_update, $_btn_cancel, $_msg_help;
 167      global $whatsnew, $_btn_template, $_btn_load, $load_template_func;
 168      global $notimeupdate;
 169  
 170      // Newly generate $digest or not
 171      if ($digest === FALSE) $digest = md5(join('', get_source($page)));
 172  
 173      $refer = $template = '';
 174   
 175       // Add plugin
 176      $addtag = $add_top = '';
 177      if(isset($vars['add'])) {
 178          global $_btn_addtop;
 179          $addtag  = '<input type="hidden" name="add"    value="true" />';
 180          $add_top = isset($vars['add_top']) ? ' checked="checked"' : '';
 181          $add_top = '<input type="checkbox" name="add_top" ' .
 182              'id="_edit_form_add_top" value="true"' . $add_top . ' />' . "\n" .
 183              '  <label for="_edit_form_add_top">' .
 184                  '<span class="small">' . $_btn_addtop . '</span>' .
 185              '</label>';
 186      }
 187  
 188      if($load_template_func && $b_template) {
 189          $pages  = array();
 190          foreach(get_existpages() as $_page) {
 191              if ($_page == $whatsnew || check_non_list($_page))
 192                  continue;
 193              $s_page = htmlspecialchars($_page);
 194              $pages[$_page] = '   <option value="' . $s_page . '">' .
 195                  $s_page . '</option>';
 196          }
 197          ksort($pages);
 198          $s_pages  = join("\n", $pages);
 199          $template = <<<EOD
 200    <select name="template_page">
 201     <option value="">-- $_btn_template --</option>
 202  $s_pages
 203    </select>
 204    <input type="submit" name="template" value="$_btn_load" accesskey="r" />
 205    <br />
 206  EOD;
 207  
 208          if (isset($vars['refer']) && $vars['refer'] != '')
 209              $refer = '[[' . strip_bracket($vars['refer']) . ']]' . "\n\n";
 210      }
 211  
 212      $r_page      = rawurlencode($page);
 213      $s_page      = htmlspecialchars($page);
 214      $s_digest    = htmlspecialchars($digest);
 215      $s_postdata  = htmlspecialchars($refer . $postdata);
 216      $s_original  = isset($vars['original']) ? htmlspecialchars($vars['original']) : $s_postdata;
 217      $b_preview   = isset($vars['preview']); // TRUE when preview
 218      $btn_preview = $b_preview ? $_btn_repreview : $_btn_preview;
 219  
 220      // Checkbox 'do not change timestamp'
 221      $add_notimestamp = '';
 222      if ($notimeupdate != 0) {
 223          global $_btn_notchangetimestamp;
 224          $checked_time = isset($vars['notimestamp']) ? ' checked="checked"' : '';
 225          // Only for administrator
 226          if ($notimeupdate == 2) {
 227              $add_notimestamp = '   ' .
 228                  '<input type="password" name="pass" size="12" />' . "\n";
 229          }
 230          $add_notimestamp = '<input type="checkbox" name="notimestamp" ' .
 231              'id="_edit_form_notimestamp" value="true"' . $checked_time . ' />' . "\n" .
 232              '   ' . '<label for="_edit_form_notimestamp"><span class="small">' .
 233              $_btn_notchangetimestamp . '</span></label>' . "\n" .
 234              $add_notimestamp .
 235              '&nbsp;';
 236      }
 237  
 238      // 'margin-bottom', 'float:left', and 'margin-top'
 239      // are for layout of 'cancel button'
 240      $body = <<<EOD
 241  <div class="edit_form">
 242   <form action="$script" method="post" style="margin-bottom:0px;">
 243  $template
 244    $addtag
 245    <input type="hidden" name="cmd"    value="edit" />
 246    <input type="hidden" name="page"   value="$s_page" />
 247    <input type="hidden" name="digest" value="$s_digest" />
 248    <textarea name="msg" rows="$rows" cols="$cols">$s_postdata</textarea>
 249    <br />
 250    <div style="float:left;">
 251     <input type="submit" name="preview" value="$btn_preview" accesskey="p" />
 252     <input type="submit" name="write"   value="$_btn_update" accesskey="s" />
 253     $add_top
 254     $add_notimestamp
 255    </div>
 256    <textarea name="original" rows="1" cols="1" style="display:none">$s_original</textarea>
 257   </form>
 258   <form action="$script" method="post" style="margin-top:0px;">
 259    <input type="hidden" name="cmd"    value="edit" />
 260    <input type="hidden" name="page"   value="$s_page" />
 261    <input type="submit" name="cancel" value="$_btn_cancel" accesskey="c" />
 262   </form>
 263  </div>
 264  EOD;
 265  
 266      if (isset($vars['help'])) {
 267          $body .= $hr . catrule();
 268      } else {
 269          $body .= '<ul><li><a href="' .
 270              $script . '?cmd=edit&amp;help=true&amp;page=' . $r_page .
 271              '">' . $_msg_help . '</a></li></ul>';
 272      }
 273  
 274      return $body;
 275  }
 276  
 277  // Related pages
 278  function make_related($page, $tag = '')
 279  {
 280      global $script, $vars, $rule_related_str, $related_str;
 281      global $_ul_left_margin, $_ul_margin, $_list_pad_str;
 282  
 283      $links = links_get_related($page);
 284  
 285      if ($tag) {
 286          ksort($links);
 287      } else {
 288          arsort($links);
 289      }
 290  
 291      $_links = array();
 292      foreach ($links as $page=>$lastmod) {
 293          if (check_non_list($page)) continue;
 294  
 295          $r_page   = rawurlencode($page);
 296          $s_page   = htmlspecialchars($page);
 297          $passage  = get_passage($lastmod);
 298          $_links[] = $tag ?
 299              '<a href="' . $script . '?' . $r_page . '" title="' .
 300              $s_page . ' ' . $passage . '">' . $s_page . '</a>' :
 301              '<a href="' . $script . '?' . $r_page . '">' .
 302              $s_page . '</a>' . $passage;
 303      }
 304      if (empty($_links)) return ''; // Nothing
 305  
 306      if ($tag == 'p') { // From the line-head
 307          $margin = $_ul_left_margin + $_ul_margin;
 308          $style  = sprintf($_list_pad_str, 1, $margin, $margin);
 309          $retval =  "\n" . '<ul' . $style . '>' . "\n" .
 310              '<li>' . join($rule_related_str, $_links) . '</li>' . "\n" .
 311              '</ul>' . "\n";
 312      } else if ($tag) {
 313          $retval = join($rule_related_str, $_links);
 314      } else {
 315          $retval = join($related_str, $_links);
 316      }
 317  
 318      return $retval;
 319  }
 320  
 321  // User-defined rules (convert without replacing source)
 322  function make_line_rules($str)
 323  {
 324      global $line_rules;
 325      static $pattern, $replace;
 326  
 327      if (! isset($pattern)) {
 328          $pattern = array_map(create_function('$a',
 329              'return \'/\' . $a . \'/\';'), array_keys($line_rules));
 330          $replace = array_values($line_rules);
 331          unset($line_rules);
 332      }
 333  
 334      return preg_replace($pattern, $replace, $str);
 335  }
 336  
 337  // Remove all HTML tags(or just anchor tags), and WikiName-speific decorations
 338  function strip_htmltag($str, $all = TRUE)
 339  {
 340      global $_symbol_noexists;
 341      static $noexists_pattern;
 342  
 343      if (! isset($noexists_pattern))
 344          $noexists_pattern = '#<span class="noexists">([^<]*)<a[^>]+>' .
 345              preg_quote($_symbol_noexists, '#') . '</a></span>#';
 346  
 347      // Strip Dagnling-Link decoration (Tags and "$_symbol_noexists")
 348      $str = preg_replace($noexists_pattern, '$1', $str);
 349  
 350      if ($all) {
 351          // All other HTML tags
 352          return preg_replace('#<[^>]+>#',        '', $str);
 353      } else {
 354          // All other anchor-tags only
 355          return preg_replace('#<a[^>]+>|</a>#i', '', $str);
 356      }
 357  }
 358  
 359  // Remove AutoLink marker with AutLink itself
 360  function strip_autolink($str)
 361  {
 362      return preg_replace('#<!--autolink--><a [^>]+>|</a><!--/autolink-->#', '', $str);
 363  }
 364  
 365  // Make a backlink. searching-link of the page name, by the page name, for the page name
 366  function make_search($page)
 367  {
 368      global $script;
 369  
 370      $s_page = htmlspecialchars($page);
 371      $r_page = rawurlencode($page);
 372  
 373      return '<a href="' . $script . '?plugin=related&amp;page=' . $r_page .
 374          '">' . $s_page . '</a> ';
 375  }
 376  
 377  // Make heading string (remove heading-related decorations from Wiki text)
 378  function make_heading(& $str, $strip = TRUE)
 379  {
 380      global $NotePattern;
 381  
 382      // Cut fixed-heading anchors
 383      $id = '';
 384      $matches = array();
 385      if (preg_match('/^(\*{0,3})(.*?)\[#([A-Za-z][\w-]+)\](.*?)$/m', $str, $matches)) {
 386          $str = $matches[2] . $matches[4];
 387          $id  = & $matches[3];
 388      } else {
 389          $str = preg_replace('/^\*{0,3}/', '', $str);
 390      }
 391  
 392      // Cut footnotes and tags
 393      if ($strip === TRUE)
 394          $str = strip_htmltag(make_link(preg_replace($NotePattern, '', $str)));
 395  
 396      return $id;
 397  }
 398  
 399  // Separate a page-name(or URL or null string) and an anchor
 400  // (last one standing) without sharp
 401  function anchor_explode($page, $strict_editable = FALSE)
 402  {
 403      $pos = strrpos($page, '#');
 404      if ($pos === FALSE) return array($page, '', FALSE);
 405  
 406      // Ignore the last sharp letter
 407      if ($pos + 1 == strlen($page)) {
 408          $pos = strpos(substr($page, $pos + 1), '#');
 409          if ($pos === FALSE) return array($page, '', FALSE);
 410      }
 411  
 412      $s_page = substr($page, 0, $pos);
 413      $anchor = substr($page, $pos + 1);
 414  
 415      if($strict_editable === TRUE &&  preg_match('/^[a-z][a-f0-9]{7}$/', $anchor)) {
 416          return array ($s_page, $anchor, TRUE); // Seems fixed-anchor
 417      } else {
 418          return array ($s_page, $anchor, FALSE);
 419      }
 420  }
 421  
 422  // Check HTTP header()s were sent already, or
 423  // there're blank lines or something out of php blocks
 424  function pkwk_headers_sent()
 425  {
 426      if (PKWK_OPTIMISE) return;
 427  
 428      $file = $line = '';
 429      if (version_compare(PHP_VERSION, '4.3.0', '>=')) {
 430          if (headers_sent($file, $line))
 431              die('Headers already sent at ' .
 432                  htmlspecialchars($file) .
 433              ' line ' . $line . '.');
 434      } else {
 435          if (headers_sent())
 436              die('Headers already sent.');
 437      }
 438  }
 439  
 440  // Output common HTTP headers
 441  function pkwk_common_headers()
 442  {
 443      if (! PKWK_OPTIMISE) pkwk_headers_sent();
 444  
 445      if(defined('PKWK_ZLIB_LOADABLE_MODULE')) {
 446          $matches = array();
 447          if(ini_get('zlib.output_compression') &&
 448              preg_match('/\b(gzip|deflate)\b/i', $_SERVER['HTTP_ACCEPT_ENCODING'], $matches)) {
 449                  // Bug #29350 output_compression compresses everything _without header_ as loadable module
 450                  // http://bugs.php.net/bug.php?id=29350
 451              header('Content-Encoding: ' . $matches[1]);
 452              header('Vary: Accept-Encoding');
 453          }
 454      }
 455  }
 456  
 457  // DTD definitions
 458  define('PKWK_DTD_XHTML_1_1',              17); // Strict only
 459  define('PKWK_DTD_XHTML_1_0',              16); // Strict
 460  define('PKWK_DTD_XHTML_1_0_STRICT',       16);
 461  define('PKWK_DTD_XHTML_1_0_TRANSITIONAL', 15);
 462  define('PKWK_DTD_XHTML_1_0_FRAMESET',     14);
 463  define('PKWK_DTD_HTML_4_01',               3); // Strict
 464  define('PKWK_DTD_HTML_4_01_STRICT',        3);
 465  define('PKWK_DTD_HTML_4_01_TRANSITIONAL',  2);
 466  define('PKWK_DTD_HTML_4_01_FRAMESET',      1);
 467  
 468  define('PKWK_DTD_TYPE_XHTML',  1);
 469  define('PKWK_DTD_TYPE_HTML',   0);
 470  
 471  // Output HTML DTD, <html> start tag. Return content-type.
 472  function pkwk_output_dtd($pkwk_dtd = PKWK_DTD_XHTML_1_1, $charset = CONTENT_CHARSET)
 473  {
 474      static $called;
 475      if (isset($called)) die('pkwk_output_dtd() already called. Why?');
 476      $called = TRUE;
 477  
 478      $type = PKWK_DTD_TYPE_XHTML;
 479      $option = '';
 480      switch($pkwk_dtd){
 481      case PKWK_DTD_XHTML_1_1             :
 482          $version = '1.1' ;
 483          $dtd     = 'http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd';
 484          break;
 485      case PKWK_DTD_XHTML_1_0_STRICT      :
 486          $version = '1.0' ;
 487          $option  = 'Strict';
 488          $dtd     = 'http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd';
 489          break;
 490      case PKWK_DTD_XHTML_1_0_TRANSITIONAL:
 491          $version = '1.0' ;
 492          $option  = 'Transitional';
 493          $dtd     = 'http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd';
 494          break;
 495  
 496      case PKWK_DTD_HTML_4_01_STRICT      :
 497          $type    = PKWK_DTD_TYPE_HTML;
 498          $version = '4.01';
 499          $dtd     = 'http://www.w3.org/TR/html4/strict.dtd';
 500          break;
 501      case PKWK_DTD_HTML_4_01_TRANSITIONAL:
 502          $type    = PKWK_DTD_TYPE_HTML;
 503          $version = '4.01';
 504          $option  = 'Transitional';
 505          $dtd     = 'http://www.w3.org/TR/html4/loose.dtd';
 506          break;
 507  
 508      default: die('DTD not specified or invalid DTD');
 509          break;
 510      }
 511  
 512      $charset = htmlspecialchars($charset);
 513  
 514      // Output XML or not
 515      if ($type == PKWK_DTD_TYPE_XHTML) echo '<?xml version="1.0" encoding="' . $charset . '" ?>' . "\n";
 516  
 517      // Output doctype
 518      echo '<!DOCTYPE html PUBLIC "-//W3C//DTD ' .
 519          ($type == PKWK_DTD_TYPE_XHTML ? 'XHTML' : 'HTML') . ' ' .
 520          $version .
 521          ($option != '' ? ' ' . $option : '') .
 522          '//EN" "' .
 523          $dtd .
 524          '">' . "\n";
 525  
 526      // Output <html> start tag
 527      echo '<html';
 528      if ($type == PKWK_DTD_TYPE_XHTML) {
 529          echo ' xmlns="http://www.w3.org/1999/xhtml"'; // dir="ltr" /* LeftToRight */
 530          echo ' xml:lang="' . LANG . '"';
 531          if ($version == '1.0') echo ' lang="' . LANG . '"'; // Only XHTML 1.0
 532      } else {
 533          echo ' lang="' . LANG . '"'; // HTML
 534      }
 535      echo '>' . "\n"; // <html>
 536  
 537      // Return content-type (with MIME type)
 538      if ($type == PKWK_DTD_TYPE_XHTML) {
 539          // NOTE: XHTML 1.1 browser will ignore http-equiv
 540          return '<meta http-equiv="content-type" content="application/xhtml+xml; charset=' . $charset . '" />' . "\n";
 541      } else {
 542          return '<meta http-equiv="content-type" content="text/html; charset=' . $charset . '" />' . "\n";
 543      }
 544  }
 545  ?>

title

Description

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