htmlawed.php 52 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699
  1. <?php
  2. /*
  3. htmLawed 1.2.beta.5, 12 March 2014
  4. Copyright Santosh Patnaik
  5. Dual licensed with LGPL 3 and GPL 2+
  6. A PHP Labware internal utility - http://www.bioinformatics.org/phplabware/internal_utilities/htmLawed/beta
  7. See htmLawed_README.txt/htm
  8. */
  9. function htmLawed($t, $C=1, $S=array()){
  10. $C = is_array($C) ? $C : array();
  11. if(!empty($C['valid_xhtml'])){
  12. $C['elements'] = empty($C['elements']) ? '*-acronym-big-center-dir-font-isindex-s-strike-tt' : $C['elements'];
  13. $C['make_tag_strict'] = isset($C['make_tag_strict']) ? $C['make_tag_strict'] : 2;
  14. $C['xml:lang'] = isset($C['xml:lang']) ? $C['xml:lang'] : 2;
  15. }
  16. // config eles
  17. $e = array('a'=>1, 'abbr'=>1, 'acronym'=>1, 'address'=>1, 'applet'=>1, 'area'=>1, 'article'=>1, 'aside'=>1, 'audio'=>1, 'b'=>1, 'bdi'=>1, 'bdo'=>1, 'big'=>1, 'blockquote'=>1, 'br'=>1, 'button'=>1, 'canvas'=>1, 'caption'=>1, 'center'=>1, 'cite'=>1, 'code'=>1, 'col'=>1, 'colgroup'=>1, 'command'=>1, 'data'=>1, 'datalist'=>1, 'dd'=>1, 'del'=>1, 'details'=>1, 'dfn'=>1, 'dir'=>1, 'div'=>1, 'dl'=>1, 'dt'=>1, 'em'=>1, 'embed'=>1, 'fieldset'=>1, 'figcaption'=>1, 'figure'=>1, 'font'=>1, 'footer'=>1, 'form'=>1, 'h1'=>1, 'h2'=>1, 'h3'=>1, 'h4'=>1, 'h5'=>1, 'h6'=>1, 'header'=>1, 'hgroup'=>1, 'hr'=>1, 'i'=>1, 'iframe'=>1, 'img'=>1, 'input'=>1, 'ins'=>1, 'isindex'=>1, 'kbd'=>1, 'keygen'=>1, 'label'=>1, 'legend'=>1, 'li'=>1, 'link'=>1, 'main'=>1, 'map'=>1, 'mark'=>1, 'menu'=>1, 'meta'=>1, 'meter'=>1, 'nav'=>1, 'noscript'=>1, 'object'=>1, 'ol'=>1, 'optgroup'=>1, 'option'=>1, 'output'=>1, 'p'=>1, 'param'=>1, 'pre'=>1, 'progress'=>1, 'q'=>1, 'rb'=>1, 'rbc'=>1, 'rp'=>1, 'rt'=>1, 'rtc'=>1, 'ruby'=>1, 's'=>1, 'samp'=>1, 'script'=>1, 'section'=>1, 'select'=>1, 'small'=>1, 'source'=>1, 'span'=>1, 'strike'=>1, 'strong'=>1, 'style'=>1, 'sub'=>1, 'summary'=>1, 'sup'=>1, 'table'=>1, 'tbody'=>1, 'td'=>1, 'textarea'=>1, 'tfoot'=>1, 'th'=>1, 'thead'=>1, 'time'=>1, 'tr'=>1, 'track'=>1, 'tt'=>1, 'u'=>1, 'ul'=>1, 'var'=>1, 'video'=>1, 'wbr'=>1); // 118 incl. deprecated & some Ruby
  18. if(!empty($C['safe'])){
  19. unset($e['applet'], $e['canvas'], $e['iframe'], $e['script']);
  20. }
  21. $x = !empty($C['elements']) ? str_replace(array("\n", "\r", "\t", ' '), '', $C['elements']) : '*';
  22. if($x == '-*'){$e = array();}
  23. elseif(strpos($x, '*') === false){$e = array_flip(explode(',', $x));}
  24. else{
  25. if(isset($x[1])){
  26. preg_match_all('`(?:^|-|\+)[^\-+]+?(?=-|\+|$)`', $x, $m, PREG_SET_ORDER);
  27. for($i=count($m); --$i>=0;){$m[$i] = $m[$i][0];}
  28. foreach($m as $v){
  29. if($v[0] == '+'){$e[substr($v, 1)] = 1;}
  30. if($v[0] == '-' && isset($e[($v = substr($v, 1))]) && !in_array('+'. $v, $m)){unset($e[$v]);}
  31. }
  32. }
  33. }
  34. $C['elements'] =& $e;
  35. // config attrs
  36. $x = !empty($C['deny_attribute']) ? str_replace(array("\n", "\r", "\t", ' '), '', $C['deny_attribute']) : '';
  37. $x = array_flip((isset($x[0]) && $x[0] == '*') ? explode('-', $x) : explode(',', $x. (!empty($C['safe']) ? ',on*' : '')));
  38. if(isset($x['on*'])){
  39. unset($x['on*']);
  40. $x += array('onabort'=>1, 'onblur'=>1, 'oncanplay'=>1, 'oncanplaythrough'=>1, 'onchange'=>1, 'onclick'=>1, 'oncontextmenu'=>1, 'oncuechange'=>1, 'ondblclick'=>1, 'ondrag'=>1, 'ondragend'=>1, 'ondragenter'=>1, 'ondragleave'=>1, 'ondragover'=>1, 'ondragstart'=>1, 'ondrop'=>1, 'ondurationchange'=>1, 'onemptied'=>1, 'onended'=>1, 'onerror'=>1, 'onfocus'=>1, 'oninput'=>1, 'oninvalid'=>1, 'onkeydown'=>1, 'onkeypress'=>1, 'onkeyup'=>1, 'onload'=>1, 'onloadeddata'=>1, 'onloadedmetadata'=>1, 'onloadstart'=>1, 'onmousedown'=>1, 'onmousemove'=>1, 'onmouseout'=>1, 'onmouseover'=>1, 'onmouseup'=>1, 'onmousewheel'=>1, 'onpause'=>1, 'onplay'=>1, 'onplaying'=>1, 'onprogress'=>1, 'onratechange'=>1, 'onreadystatechange'=>1, 'onreset'=>1, 'onscroll'=>1, 'onseeked'=>1, 'onseeking'=>1, 'onselect'=>1, 'onshow'=>1, 'onstalled'=>1, 'onsubmit'=>1, 'onsuspend'=>1, 'ontimeupdate'=>1, 'onvolumechange'=>1, 'onwaiting'=>1);
  41. }
  42. $C['deny_attribute'] = $x;
  43. // config URL
  44. $x = (isset($C['schemes'][2]) && strpos($C['schemes'], ':')) ? strtolower($C['schemes']) : 'href: aim, feed, file, ftp, gopher, http, https, irc, mailto, news, nntp, sftp, ssh, telnet; *:file, http, https';
  45. $C['schemes'] = array();
  46. foreach(explode(';', str_replace(array(' ', "\t", "\r", "\n"), '', $x)) as $v){
  47. $x = $x2 = null; list($x, $x2) = explode(':', $v, 2);
  48. if($x2){$C['schemes'][$x] = array_flip(explode(',', $x2));}
  49. }
  50. if(!isset($C['schemes']['*'])){$C['schemes']['*'] = array('file'=>1, 'http'=>1, 'https'=>1,);}
  51. if(!empty($C['safe']) && empty($C['schemes']['style'])){$C['schemes']['style'] = array('!'=>1);}
  52. $C['abs_url'] = isset($C['abs_url']) ? $C['abs_url'] : 0;
  53. if(!isset($C['base_url']) or !preg_match('`^[a-zA-Z\d.+\-]+://[^/]+/(.+?/)?$`', $C['base_url'])){
  54. $C['base_url'] = $C['abs_url'] = 0;
  55. }
  56. // config rest
  57. $C['and_mark'] = empty($C['and_mark']) ? 0 : 1;
  58. $C['anti_link_spam'] = (isset($C['anti_link_spam']) && is_array($C['anti_link_spam']) && count($C['anti_link_spam']) == 2 && (empty($C['anti_link_spam'][0]) or hl_regex($C['anti_link_spam'][0])) && (empty($C['anti_link_spam'][1]) or hl_regex($C['anti_link_spam'][1]))) ? $C['anti_link_spam'] : 0;
  59. $C['anti_mail_spam'] = isset($C['anti_mail_spam']) ? $C['anti_mail_spam'] : 0;
  60. $C['balance'] = isset($C['balance']) ? (bool)$C['balance'] : 1;
  61. $C['cdata'] = isset($C['cdata']) ? $C['cdata'] : (empty($C['safe']) ? 3 : 0);
  62. $C['clean_ms_char'] = empty($C['clean_ms_char']) ? 0 : $C['clean_ms_char'];
  63. $C['comment'] = isset($C['comment']) ? $C['comment'] : (empty($C['safe']) ? 3 : 0);
  64. $C['css_expression'] = empty($C['css_expression']) ? 0 : 1;
  65. $C['direct_list_nest'] = empty($C['direct_list_nest']) ? 0 : 1;
  66. $C['hexdec_entity'] = isset($C['hexdec_entity']) ? $C['hexdec_entity'] : 1;
  67. $C['hook'] = (!empty($C['hook']) && function_exists($C['hook'])) ? $C['hook'] : 0;
  68. $C['hook_tag'] = (!empty($C['hook_tag']) && function_exists($C['hook_tag'])) ? $C['hook_tag'] : 0;
  69. $C['keep_bad'] = isset($C['keep_bad']) ? $C['keep_bad'] : 6;
  70. $C['lc_std_val'] = isset($C['lc_std_val']) ? (bool)$C['lc_std_val'] : 1;
  71. $C['make_tag_strict'] = isset($C['make_tag_strict']) ? $C['make_tag_strict'] : 1;
  72. $C['named_entity'] = isset($C['named_entity']) ? (bool)$C['named_entity'] : 1;
  73. $C['no_deprecated_attr'] = isset($C['no_deprecated_attr']) ? $C['no_deprecated_attr'] : 1;
  74. $C['parent'] = isset($C['parent'][0]) ? strtolower($C['parent']) : 'body';
  75. $C['show_setting'] = !empty($C['show_setting']) ? $C['show_setting'] : 0;
  76. $C['style_pass'] = empty($C['style_pass']) ? 0 : 1;
  77. $C['tidy'] = empty($C['tidy']) ? 0 : $C['tidy'];
  78. $C['unique_ids'] = isset($C['unique_ids']) && (!preg_match('`\W`', $C['unique_ids'])) ? $C['unique_ids'] : 1;
  79. $C['xml:lang'] = isset($C['xml:lang']) ? $C['xml:lang'] : 0;
  80. if(isset($GLOBALS['C'])){$reC = $GLOBALS['C'];}
  81. $GLOBALS['C'] = $C;
  82. $S = is_array($S) ? $S : hl_spec($S);
  83. if(isset($GLOBALS['S'])){$reS = $GLOBALS['S'];}
  84. $GLOBALS['S'] = $S;
  85. $t = preg_replace('`[\x00-\x08\x0b-\x0c\x0e-\x1f]`', '', $t);
  86. if($C['clean_ms_char']){
  87. $x = array("\x7f"=>'', "\x80"=>'&#8364;', "\x81"=>'', "\x83"=>'&#402;', "\x85"=>'&#8230;', "\x86"=>'&#8224;', "\x87"=>'&#8225;', "\x88"=>'&#710;', "\x89"=>'&#8240;', "\x8a"=>'&#352;', "\x8b"=>'&#8249;', "\x8c"=>'&#338;', "\x8d"=>'', "\x8e"=>'&#381;', "\x8f"=>'', "\x90"=>'', "\x95"=>'&#8226;', "\x96"=>'&#8211;', "\x97"=>'&#8212;', "\x98"=>'&#732;', "\x99"=>'&#8482;', "\x9a"=>'&#353;', "\x9b"=>'&#8250;', "\x9c"=>'&#339;', "\x9d"=>'', "\x9e"=>'&#382;', "\x9f"=>'&#376;');
  88. $x = $x + ($C['clean_ms_char'] == 1 ? array("\x82"=>'&#8218;', "\x84"=>'&#8222;', "\x91"=>'&#8216;', "\x92"=>'&#8217;', "\x93"=>'&#8220;', "\x94"=>'&#8221;') : array("\x82"=>'\'', "\x84"=>'"', "\x91"=>'\'', "\x92"=>'\'', "\x93"=>'"', "\x94"=>'"'));
  89. $t = strtr($t, $x);
  90. }
  91. if($C['cdata'] or $C['comment']){$t = preg_replace_callback('`<!(?:(?:--.*?--)|(?:\[CDATA\[.*?\]\]))>`sm', 'hl_cmtcd', $t);}
  92. $t = preg_replace_callback('`&amp;([a-zA-Z][a-zA-Z0-9]{1,30}|#(?:[0-9]{1,8}|[Xx][0-9A-Fa-f]{1,7}));`', 'hl_ent', str_replace('&', '&amp;', $t));
  93. if($C['unique_ids'] && !isset($GLOBALS['hl_Ids'])){$GLOBALS['hl_Ids'] = array();}
  94. if($C['hook']){$t = $C['hook']($t, $C, $S);}
  95. if($C['show_setting'] && preg_match('`^[a-z][a-z0-9_]*$`i', $C['show_setting'])){
  96. $GLOBALS[$C['show_setting']] = array('config'=>$C, 'spec'=>$S, 'time'=>microtime());
  97. }
  98. // main
  99. $t = preg_replace_callback('`<(?:(?:\s|$)|(?:[^>]*(?:>|$)))|>`m', 'hl_tag', $t);
  100. $t = $C['balance'] ? hl_bal($t, $C['keep_bad'], $C['parent']) : $t;
  101. $t = (($C['cdata'] or $C['comment']) && strpos($t, "\x01") !== false) ? str_replace(array("\x01", "\x02", "\x03", "\x04", "\x05"), array('', '', '&', '<', '>'), $t) : $t;
  102. $t = $C['tidy'] ? hl_tidy($t, $C['tidy'], $C['parent']) : $t;
  103. unset($C, $e);
  104. if(isset($reC)){$GLOBALS['C'] = $reC;}
  105. if(isset($reS)){$GLOBALS['S'] = $reS;}
  106. return $t;
  107. // eof
  108. }
  109. function hl_attrval($t, $p){
  110. // check attr val against $S
  111. $o = 1; $l = strlen($t);
  112. foreach($p as $k=>$v){
  113. switch($k){
  114. case 'maxlen':if($l > $v){$o = 0;}
  115. break; case 'minlen': if($l < $v){$o = 0;}
  116. break; case 'maxval': if((float)($t) > $v){$o = 0;}
  117. break; case 'minval': if((float)($t) < $v){$o = 0;}
  118. break; case 'match': if(!preg_match($v, $t)){$o = 0;}
  119. break; case 'nomatch': if(preg_match($v, $t)){$o = 0;}
  120. break; case 'oneof':
  121. $m = 0;
  122. foreach(explode('|', $v) as $n){if($t == $n){$m = 1; break;}}
  123. $o = $m;
  124. break; case 'noneof':
  125. $m = 1;
  126. foreach(explode('|', $v) as $n){if($t == $n){$m = 0; break;}}
  127. $o = $m;
  128. break; default:
  129. break;
  130. }
  131. if(!$o){break;}
  132. }
  133. return ($o ? $t : (isset($p['default']) ? $p['default'] : 0));
  134. // eof
  135. }
  136. function hl_bal($t, $do=1, $in='div'){
  137. // balance tags
  138. // by content
  139. $cB = array('blockquote'=>1, 'form'=>1, 'map'=>1, 'noscript'=>1); // Block
  140. $cE = array('area'=>1, 'br'=>1, 'col'=>1, 'command'=>1, 'embed'=>1, 'hr'=>1, 'img'=>1, 'input'=>1, 'isindex'=>1, 'keygen'=>1, 'link'=>1, 'meta'=>1, 'param'=>1, 'source'=>1, 'track'=>1, 'wbr'=>1); // Empty
  141. $cF = array('a'=>1, 'article'=>1, 'aside'=>1, 'audio'=>1, 'button'=>1, 'canvas'=>1, 'del'=>1, 'details'=>1, 'div'=>1, 'dd'=>1, 'fieldset'=>1, 'figure'=>1, 'footer'=>1, 'header'=>1, 'iframe'=>1, 'ins'=>1, 'li'=>1, 'main'=>1, 'menu'=>1, 'nav'=>1, 'noscript'=>1, 'object'=>1, 'section'=>1, 'style'=>1, 'td'=>1, 'th'=>1, 'video'=>1); // Flow; later context-wise dynamic move of ins & del to $cI
  142. $cI = array('abbr'=>1, 'acronym'=>1, 'address'=>1, 'b'=>1, 'bdi'=>1, 'bdo'=>1, 'big'=>1, 'caption'=>1, 'cite'=>1, 'code'=>1, 'data'=>1, 'datalist'=>1, 'dfn'=>1, 'dt'=>1, 'em'=>1, 'figcaption'=>1, 'font'=>1, 'h1'=>1, 'h2'=>1, 'h3'=>1, 'h4'=>1, 'h5'=>1, 'h6'=>1, 'hgroup'=>1, 'i'=>1, 'kbd'=>1, 'label'=>1, 'legend'=>1, 'mark'=>1, 'meter'=>1, 'output'=>1, 'p'=>1, 'pre'=>1, 'progress'=>1, 'q'=>1, 'rb'=>1, 'rt'=>1, 's'=>1, 'samp'=>1, 'small'=>1, 'span'=>1, 'strike'=>1, 'strong'=>1, 'sub'=>1, 'summary'=>1, 'sup'=>1, 'time'=>1, 'tt'=>1, 'u'=>1, 'var'=>1); // Inline
  143. $cN = array('a'=>array('a'=>1, 'address'=>1, 'button'=>1, 'details'=>1, 'embed'=>1, 'keygen'=>1, 'label'=>1, 'select'=>1, 'textarea'=>1), 'address'=>array('address'=>1, 'article'=>1, 'aside'=>1, 'header'=>1, 'keygen'=>1, 'footer'=>1, 'nav'=>1, 'section'=>1), 'button'=>array('a'=>1, 'address'=>1, 'button'=>1, 'details'=>1, 'embed'=>1, 'fieldset'=>1, 'form'=>1, 'iframe'=>1, 'input'=>1, 'keygen'=>1, 'label'=>1, 'select'=>1, 'textarea'=>1), 'fieldset'=>array('fieldset'=>1), 'footer'=>array('header'=>1, 'footer'=>1), 'form'=>array('form'=>1), 'header'=>array('header'=>1, 'footer'=>1), 'label'=>array('label'=>1), 'main'=>array('main'=>1), 'meter'=>array('meter'=>1), 'noscript'=>array('script'=>1), 'pre'=>array('big'=>1, 'font'=>1, 'img'=>1, 'object'=>1, 'script'=>1, 'small'=>1, 'sub'=>1, 'sup'=>1), 'progress'=>array('progress'=>1), 'rb'=>array('ruby'=>1), 'rt'=>array('ruby'=>1), 'time'=>array('time'=>1), ); // Illegal
  144. $cN2 = array_keys($cN);
  145. $cS = array('colgroup'=>array('col'=>1), 'datalist'=>array('option'=>1), 'dir'=>array('li'=>1), 'dl'=>array('dd'=>1, 'dt'=>1), 'hgroup'=>array('h1'=>1, 'h2'=>1, 'h3'=>1, 'h4'=>1, 'h5'=>1, 'h6'=>1), 'menu'=>array('li'=>1), 'ol'=>array('li'=>1), 'optgroup'=>array('option'=>1), 'option'=>array('#pcdata'=>1), 'rbc'=>array('rb'=>1), 'rp'=>array('#pcdata'=>1), 'rtc'=>array('rt'=>1), 'ruby'=>array('rb'=>1, 'rbc'=>1, 'rp'=>1, 'rt'=>1, 'rtc'=>1), 'select'=>array('optgroup'=>1, 'option'=>1), 'script'=>array('#pcdata'=>1), 'table'=>array('caption'=>1, 'col'=>1, 'colgroup'=>1, 'tfoot'=>1, 'tbody'=>1, 'tr'=>1, 'thead'=>1), 'tbody'=>array('tr'=>1), 'tfoot'=>array('tr'=>1), 'textarea'=>array('#pcdata'=>1), 'thead'=>array('tr'=>1), 'tr'=>array('td'=>1, 'th'=>1), 'ul'=>array('li'=>1)); // Specific - immediate parent-child
  146. if($GLOBALS['C']['direct_list_nest']){$cS['ol'] = $cS['ul'] = $cS['menu'] += array('menu'=>1, 'ol'=>1, 'ul'=>1);}
  147. $cO = array('address'=>array('p'=>1), 'applet'=>array('param'=>1), 'audio'=>array('source'=>1, 'track'=>1), 'blockquote'=>array('script'=>1), 'details'=>array('summary'=>1), 'fieldset'=>array('legend'=>1, '#pcdata'=>1), 'figure'=>array('figcaption'=>1),'form'=>array('script'=>1), 'map'=>array('area'=>1), 'object'=>array('param'=>1, 'embed'=>1), 'video'=>array('source'=>1, 'track'=>1)); // Other
  148. $cT = array('colgroup'=>1, 'dd'=>1, 'dt'=>1, 'li'=>1, 'option'=>1, 'p'=>1, 'td'=>1, 'tfoot'=>1, 'th'=>1, 'thead'=>1, 'tr'=>1); // Omitable closing
  149. // block/inline type; a/ins/del both type; #pcdata: text
  150. $eB = array('a'=>1, 'address'=>1, 'article'=>1, 'aside'=>1, 'blockquote'=>1, 'center'=>1, 'del'=>1, 'details'=>1, 'dir'=>1, 'dl'=>1, 'div'=>1, 'fieldset'=>1, 'figure'=>1, 'footer'=>1, 'form'=>1, 'ins'=>1, 'h1'=>1, 'h2'=>1, 'h3'=>1, 'h4'=>1, 'h5'=>1, 'h6'=>1, 'header'=>1, 'hr'=>1, 'isindex'=>1, 'main'=>1, 'menu'=>1, 'nav'=>1, 'noscript'=>1, 'ol'=>1, 'p'=>1, 'pre'=>1, 'section'=>1, 'style'=>1, 'table'=>1, 'ul'=>1);
  151. $eI = array('#pcdata'=>1, 'a'=>1, 'abbr'=>1, 'acronym'=>1, 'applet'=>1, 'audio'=>1, 'b'=>1, 'bdi'=>1, 'bdo'=>1, 'big'=>1, 'br'=>1, 'button'=>1, 'canvas'=>1, 'cite'=>1, 'code'=>1, 'command'=>1, 'data'=>1, 'datalist'=>1, 'del'=>1, 'dfn'=>1, 'em'=>1, 'embed'=>1, 'figcaption'=>1, 'font'=>1, 'i'=>1, 'iframe'=>1, 'img'=>1, 'input'=>1, 'ins'=>1, 'kbd'=>1, 'label'=>1, 'link'=>1, 'map'=>1, 'mark'=>1, 'meta'=>1, 'meter'=>1, 'object'=>1, 'output'=>1, 'progress'=>1, 'q'=>1, 'ruby'=>1, 's'=>1, 'samp'=>1, 'select'=>1, 'script'=>1, 'small'=>1, 'span'=>1, 'strike'=>1, 'strong'=>1, 'sub'=>1, 'summary'=>1, 'sup'=>1, 'textarea'=>1, 'time'=>1, 'tt'=>1, 'u'=>1, 'var'=>1, 'video'=>1, 'wbr'=>1);
  152. $eN = array('a'=>1, 'address'=>1, 'article'=>1, 'aside'=>1, 'big'=>1, 'button'=>1, 'details'=>1, 'embed'=>1, 'fieldset'=>1, 'font'=>1, 'footer'=>1, 'form'=>1, 'header'=>1, 'iframe'=>1, 'img'=>1, 'input'=>1, 'keygen'=>1, 'label'=>1, 'meter'=>1, 'nav'=>1, 'object'=>1, 'progress'=>1, 'ruby'=>1, 'script'=>1, 'select'=>1, 'small'=>1, 'sub'=>1, 'sup'=>1, 'textarea'=>1, 'time'=>1); // Exclude from specific ele; $cN values
  153. $eO = array('area'=>1, 'caption'=>1, 'col'=>1, 'colgroup'=>1, 'command'=>1, 'dd'=>1, 'dt'=>1, 'hgroup'=>1, 'keygen'=>1, 'legend'=>1, 'li'=>1, 'optgroup'=>1, 'option'=>1, 'param'=>1, 'rb'=>1, 'rbc'=>1, 'rp'=>1, 'rt'=>1, 'rtc'=>1, 'script'=>1, 'source'=>1, 'tbody'=>1, 'td'=>1, 'tfoot'=>1, 'thead'=>1, 'th'=>1, 'tr'=>1, 'track'=>1); // Missing in $eB & $eI
  154. $eF = $eB + $eI;
  155. // $in sets allowed child
  156. $in = ((isset($eF[$in]) && $in != '#pcdata') or isset($eO[$in])) ? $in : 'div';
  157. if(isset($cE[$in])){
  158. return (!$do ? '' : str_replace(array('<', '>'), array('&lt;', '&gt;'), $t));
  159. }
  160. if(isset($cS[$in])){$inOk = $cS[$in];}
  161. elseif(isset($cI[$in])){$inOk = $eI; $cI['del'] = 1; $cI['ins'] = 1;}
  162. elseif(isset($cF[$in])){$inOk = $eF; unset($cI['del'], $cI['ins']);}
  163. elseif(isset($cB[$in])){$inOk = $eB; unset($cI['del'], $cI['ins']);}
  164. if(isset($cO[$in])){$inOk = $inOk + $cO[$in];}
  165. if(isset($cN[$in])){$inOk = array_diff_assoc($inOk, $cN[$in]);}
  166. $t = explode('<', $t);
  167. $ok = $q = array(); // $q seq list of open non-empty ele
  168. ob_start();
  169. for($i=-1, $ci=count($t); ++$i<$ci;){
  170. // allowed $ok in parent $p
  171. if($ql = count($q)){
  172. $p = array_pop($q);
  173. $q[] = $p;
  174. if(isset($cS[$p])){$ok = $cS[$p];}
  175. elseif(isset($cI[$p])){$ok = $eI; $cI['del'] = 1; $cI['ins'] = 1;}
  176. elseif(isset($cF[$p])){$ok = $eF; unset($cI['del'], $cI['ins']);}
  177. elseif(isset($cB[$p])){$ok = $eB; unset($cI['del'], $cI['ins']);}
  178. if(isset($cO[$p])){$ok = $ok + $cO[$p];}
  179. if(isset($cN[$p])){$ok = array_diff_assoc($ok, $cN[$p]);}
  180. }else{$ok = $inOk; unset($cI['del'], $cI['ins']);}
  181. // bad tags, & ele content
  182. if(isset($e) && ($do == 1 or (isset($ok['#pcdata']) && ($do == 3 or $do == 5)))){
  183. echo '&lt;', $s, $e, $a, '&gt;';
  184. }
  185. if(isset($x[0])){
  186. if(strlen(trim($x)) && (($ql && isset($cB[$p])) or (isset($cB[$in]) && !$ql))){
  187. echo '<div>', $x, '</div>';
  188. }
  189. elseif($do < 3 or isset($ok['#pcdata'])){echo $x;}
  190. elseif(strpos($x, "\x02\x04")){
  191. foreach(preg_split('`(\x01\x02[^\x01\x02]+\x02\x01)`', $x, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY) as $v){
  192. echo (substr($v, 0, 2) == "\x01\x02" ? $v : ($do > 4 ? preg_replace('`\S`', '', $v) : ''));
  193. }
  194. }elseif($do > 4){echo preg_replace('`\S`', '', $x);}
  195. }
  196. // get markup
  197. if(!preg_match('`^(/?)([a-z1-6]+)([^>]*)>(.*)`sm', $t[$i], $r)){$x = $t[$i]; continue;}
  198. $s = null; $e = null; $a = null; $x = null; list($all, $s, $e, $a, $x) = $r;
  199. // close tag
  200. if($s){
  201. if(isset($cE[$e]) or !in_array($e, $q)){continue;} // Empty/unopen
  202. if($p == $e){array_pop($q); echo '</', $e, '>'; unset($e); continue;} // Last open
  203. $add = ''; // Nesting - close open tags that need to be
  204. for($j=-1, $cj=count($q); ++$j<$cj;){
  205. if(($d = array_pop($q)) == $e){break;}
  206. else{$add .= "</{$d}>";}
  207. }
  208. echo $add, '</', $e, '>'; unset($e); continue;
  209. }
  210. // open tag
  211. // $cB ele needs $eB ele as child
  212. if(isset($cB[$e]) && strlen(trim($x))){
  213. $t[$i] = "{$e}{$a}>";
  214. array_splice($t, $i+1, 0, 'div>'. $x); unset($e, $x); ++$ci; --$i; continue;
  215. }
  216. if((($ql && isset($cB[$p])) or (isset($cB[$in]) && !$ql)) && !isset($eB[$e]) && !isset($ok[$e])){
  217. array_splice($t, $i, 0, 'div>'); unset($e, $x); ++$ci; --$i; continue;
  218. }
  219. // if no open ele, $in = parent; mostly immediate parent-child relation should hold
  220. if(!$ql or !isset($eN[$e]) or !array_intersect($q, $cN2)){
  221. if(!isset($ok[$e])){
  222. if($ql && isset($cT[$p])){echo '</', array_pop($q), '>'; unset($e, $x); --$i;}
  223. continue;
  224. }
  225. if(!isset($cE[$e])){$q[] = $e;}
  226. echo '<', $e, $a, '>'; unset($e); continue;
  227. }
  228. // specific parent-child
  229. if(isset($cS[$p][$e])){
  230. if(!isset($cE[$e])){$q[] = $e;}
  231. echo '<', $e, $a, '>'; unset($e); continue;
  232. }
  233. // nesting
  234. $add = '';
  235. $q2 = array();
  236. for($k=-1, $kc=count($q); ++$k<$kc;){
  237. $d = $q[$k];
  238. $ok2 = array();
  239. if(isset($cS[$d])){$q2[] = $d; continue;}
  240. $ok2 = isset($cI[$d]) ? $eI : $eF;
  241. if(isset($cO[$d])){$ok2 = $ok2 + $cO[$d];}
  242. if(isset($cN[$d])){$ok2 = array_diff_assoc($ok2, $cN[$d]);}
  243. if(!isset($ok2[$e])){
  244. if(!$k && !isset($inOk[$e])){continue 2;}
  245. $add = "</{$d}>";
  246. for(;++$k<$kc;){$add = "</{$q[$k]}>{$add}";}
  247. break;
  248. }
  249. else{$q2[] = $d;}
  250. }
  251. $q = $q2;
  252. if(!isset($cE[$e])){$q[] = $e;}
  253. echo $add, '<', $e, $a, '>'; unset($e); continue;
  254. }
  255. // end
  256. if($ql = count($q)){
  257. $p = array_pop($q);
  258. $q[] = $p;
  259. if(isset($cS[$p])){$ok = $cS[$p];}
  260. elseif(isset($cI[$p])){$ok = $eI; $cI['del'] = 1; $cI['ins'] = 1;}
  261. elseif(isset($cF[$p])){$ok = $eF; unset($cI['del'], $cI['ins']);}
  262. elseif(isset($cB[$p])){$ok = $eB; unset($cI['del'], $cI['ins']);}
  263. if(isset($cO[$p])){$ok = $ok + $cO[$p];}
  264. if(isset($cN[$p])){$ok = array_diff_assoc($ok, $cN[$p]);}
  265. }else{$ok = $inOk; unset($cI['del'], $cI['ins']);}
  266. if(isset($e) && ($do == 1 or (isset($ok['#pcdata']) && ($do == 3 or $do == 5)))){
  267. echo '&lt;', $s, $e, $a, '&gt;';
  268. }
  269. if(isset($x[0])){
  270. if(strlen(trim($x)) && (($ql && isset($cB[$p])) or (isset($cB[$in]) && !$ql))){
  271. echo '<div>', $x, '</div>';
  272. }
  273. elseif($do < 3 or isset($ok['#pcdata'])){echo $x;}
  274. elseif(strpos($x, "\x02\x04")){
  275. foreach(preg_split('`(\x01\x02[^\x01\x02]+\x02\x01)`', $x, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY) as $v){
  276. echo (substr($v, 0, 2) == "\x01\x02" ? $v : ($do > 4 ? preg_replace('`\S`', '', $v) : ''));
  277. }
  278. }elseif($do > 4){echo preg_replace('`\S`', '', $x);}
  279. }
  280. while(!empty($q) && ($e = array_pop($q))){echo '</', $e, '>';}
  281. $o = ob_get_contents();
  282. ob_end_clean();
  283. return $o;
  284. // eof
  285. }
  286. function hl_cmtcd($t){
  287. // comment/CDATA sec handler
  288. $t = $t[0];
  289. global $C;
  290. if(!($v = $C[$n = $t[3] == '-' ? 'comment' : 'cdata'])){return $t;}
  291. if($v == 1){return '';}
  292. if($n == 'comment'){
  293. if(substr(($t = preg_replace('`--+`', '-', substr($t, 4, -3))), -1) != ' '){$t .= ' ';}
  294. }
  295. else{$t = substr($t, 1, -1);}
  296. $t = $v == 2 ? str_replace(array('&', '<', '>'), array('&amp;', '&lt;', '&gt;'), $t) : $t;
  297. return str_replace(array('&', '<', '>'), array("\x03", "\x04", "\x05"), ($n == 'comment' ? "\x01\x02\x04!--$t--\x05\x02\x01" : "\x01\x01\x04$t\x05\x01\x01"));
  298. // eof
  299. }
  300. function hl_ent($t){
  301. // entitity handler
  302. global $C;
  303. $t = $t[1];
  304. static $U = array('quot'=>1,'amp'=>1,'lt'=>1,'gt'=>1);
  305. static $N = array('fnof'=>'402', 'Alpha'=>'913', 'Beta'=>'914', 'Gamma'=>'915', 'Delta'=>'916', 'Epsilon'=>'917', 'Zeta'=>'918', 'Eta'=>'919', 'Theta'=>'920', 'Iota'=>'921', 'Kappa'=>'922', 'Lambda'=>'923', 'Mu'=>'924', 'Nu'=>'925', 'Xi'=>'926', 'Omicron'=>'927', 'Pi'=>'928', 'Rho'=>'929', 'Sigma'=>'931', 'Tau'=>'932', 'Upsilon'=>'933', 'Phi'=>'934', 'Chi'=>'935', 'Psi'=>'936', 'Omega'=>'937', 'alpha'=>'945', 'beta'=>'946', 'gamma'=>'947', 'delta'=>'948', 'epsilon'=>'949', 'zeta'=>'950', 'eta'=>'951', 'theta'=>'952', 'iota'=>'953', 'kappa'=>'954', 'lambda'=>'955', 'mu'=>'956', 'nu'=>'957', 'xi'=>'958', 'omicron'=>'959', 'pi'=>'960', 'rho'=>'961', 'sigmaf'=>'962', 'sigma'=>'963', 'tau'=>'964', 'upsilon'=>'965', 'phi'=>'966', 'chi'=>'967', 'psi'=>'968', 'omega'=>'969', 'thetasym'=>'977', 'upsih'=>'978', 'piv'=>'982', 'bull'=>'8226', 'hellip'=>'8230', 'prime'=>'8242', 'Prime'=>'8243', 'oline'=>'8254', 'frasl'=>'8260', 'weierp'=>'8472', 'image'=>'8465', 'real'=>'8476', 'trade'=>'8482', 'alefsym'=>'8501', 'larr'=>'8592', 'uarr'=>'8593', 'rarr'=>'8594', 'darr'=>'8595', 'harr'=>'8596', 'crarr'=>'8629', 'lArr'=>'8656', 'uArr'=>'8657', 'rArr'=>'8658', 'dArr'=>'8659', 'hArr'=>'8660', 'forall'=>'8704', 'part'=>'8706', 'exist'=>'8707', 'empty'=>'8709', 'nabla'=>'8711', 'isin'=>'8712', 'notin'=>'8713', 'ni'=>'8715', 'prod'=>'8719', 'sum'=>'8721', 'minus'=>'8722', 'lowast'=>'8727', 'radic'=>'8730', 'prop'=>'8733', 'infin'=>'8734', 'ang'=>'8736', 'and'=>'8743', 'or'=>'8744', 'cap'=>'8745', 'cup'=>'8746', 'int'=>'8747', 'there4'=>'8756', 'sim'=>'8764', 'cong'=>'8773', 'asymp'=>'8776', 'ne'=>'8800', 'equiv'=>'8801', 'le'=>'8804', 'ge'=>'8805', 'sub'=>'8834', 'sup'=>'8835', 'nsub'=>'8836', 'sube'=>'8838', 'supe'=>'8839', 'oplus'=>'8853', 'otimes'=>'8855', 'perp'=>'8869', 'sdot'=>'8901', 'lceil'=>'8968', 'rceil'=>'8969', 'lfloor'=>'8970', 'rfloor'=>'8971', 'lang'=>'9001', 'rang'=>'9002', 'loz'=>'9674', 'spades'=>'9824', 'clubs'=>'9827', 'hearts'=>'9829', 'diams'=>'9830', 'apos'=>'39', 'OElig'=>'338', 'oelig'=>'339', 'Scaron'=>'352', 'scaron'=>'353', 'Yuml'=>'376', 'circ'=>'710', 'tilde'=>'732', 'ensp'=>'8194', 'emsp'=>'8195', 'thinsp'=>'8201', 'zwnj'=>'8204', 'zwj'=>'8205', 'lrm'=>'8206', 'rlm'=>'8207', 'ndash'=>'8211', 'mdash'=>'8212', 'lsquo'=>'8216', 'rsquo'=>'8217', 'sbquo'=>'8218', 'ldquo'=>'8220', 'rdquo'=>'8221', 'bdquo'=>'8222', 'dagger'=>'8224', 'Dagger'=>'8225', 'permil'=>'8240', 'lsaquo'=>'8249', 'rsaquo'=>'8250', 'euro'=>'8364', 'nbsp'=>'160', 'iexcl'=>'161', 'cent'=>'162', 'pound'=>'163', 'curren'=>'164', 'yen'=>'165', 'brvbar'=>'166', 'sect'=>'167', 'uml'=>'168', 'copy'=>'169', 'ordf'=>'170', 'laquo'=>'171', 'not'=>'172', 'shy'=>'173', 'reg'=>'174', 'macr'=>'175', 'deg'=>'176', 'plusmn'=>'177', 'sup2'=>'178', 'sup3'=>'179', 'acute'=>'180', 'micro'=>'181', 'para'=>'182', 'middot'=>'183', 'cedil'=>'184', 'sup1'=>'185', 'ordm'=>'186', 'raquo'=>'187', 'frac14'=>'188', 'frac12'=>'189', 'frac34'=>'190', 'iquest'=>'191', 'Agrave'=>'192', 'Aacute'=>'193', 'Acirc'=>'194', 'Atilde'=>'195', 'Auml'=>'196', 'Aring'=>'197', 'AElig'=>'198', 'Ccedil'=>'199', 'Egrave'=>'200', 'Eacute'=>'201', 'Ecirc'=>'202', 'Euml'=>'203', 'Igrave'=>'204', 'Iacute'=>'205', 'Icirc'=>'206', 'Iuml'=>'207', 'ETH'=>'208', 'Ntilde'=>'209', 'Ograve'=>'210', 'Oacute'=>'211', 'Ocirc'=>'212', 'Otilde'=>'213', 'Ouml'=>'214', 'times'=>'215', 'Oslash'=>'216', 'Ugrave'=>'217', 'Uacute'=>'218', 'Ucirc'=>'219', 'Uuml'=>'220', 'Yacute'=>'221', 'THORN'=>'222', 'szlig'=>'223', 'agrave'=>'224', 'aacute'=>'225', 'acirc'=>'226', 'atilde'=>'227', 'auml'=>'228', 'aring'=>'229', 'aelig'=>'230', 'ccedil'=>'231', 'egrave'=>'232', 'eacute'=>'233', 'ecirc'=>'234', 'euml'=>'235', 'igrave'=>'236', 'iacute'=>'237', 'icirc'=>'238', 'iuml'=>'239', 'eth'=>'240', 'ntilde'=>'241', 'ograve'=>'242', 'oacute'=>'243', 'ocirc'=>'244', 'otilde'=>'245', 'ouml'=>'246', 'divide'=>'247', 'oslash'=>'248', 'ugrave'=>'249', 'uacute'=>'250', 'ucirc'=>'251', 'uuml'=>'252', 'yacute'=>'253', 'thorn'=>'254', 'yuml'=>'255');
  306. if($t[0] != '#'){
  307. return ($C['and_mark'] ? "\x06" : '&'). (isset($U[$t]) ? $t : (isset($N[$t]) ? (!$C['named_entity'] ? '#'. ($C['hexdec_entity'] > 1 ? 'x'. dechex($N[$t]) : $N[$t]) : $t) : 'amp;'. $t)). ';';
  308. }
  309. if(($n = ctype_digit($t = substr($t, 1)) ? intval($t) : hexdec(substr($t, 1))) < 9 or ($n > 13 && $n < 32) or $n == 11 or $n == 12 or ($n > 126 && $n < 160 && $n != 133) or ($n > 55295 && ($n < 57344 or ($n > 64975 && $n < 64992) or $n == 65534 or $n == 65535 or $n > 1114111))){
  310. return ($C['and_mark'] ? "\x06" : '&'). "amp;#{$t};";
  311. }
  312. return ($C['and_mark'] ? "\x06" : '&'). '#'. (((ctype_digit($t) && $C['hexdec_entity'] < 2) or !$C['hexdec_entity']) ? $n : 'x'. dechex($n)). ';';
  313. // eof
  314. }
  315. function hl_prot($p, $c=null){
  316. // check URL scheme
  317. global $C;
  318. $b = $a = '';
  319. if($c == null){$c = 'style'; $b = $p[1]; $a = $p[3]; $p = trim($p[2]);}
  320. $c = isset($C['schemes'][$c]) ? $C['schemes'][$c] : $C['schemes']['*'];
  321. static $d = 'denied:';
  322. if(isset($c['!']) && substr($p, 0, 7) != $d){$p = "$d$p";}
  323. if(isset($c['*']) or !strcspn($p, '#?;') or (substr($p, 0, 7) == $d)){return "{$b}{$p}{$a}";} // All ok, frag, query, param
  324. if(preg_match('`^([^:?[@!$()*,=/\'\]]+?)(:|&#(58|x3a);|%3a|\\\\0{0,4}3a).`i', $p, $m) && !isset($c[strtolower($m[1])])){ // Denied prot
  325. return "{$b}{$d}{$p}{$a}";
  326. }
  327. if($C['abs_url']){
  328. if($C['abs_url'] == -1 && strpos($p, $C['base_url']) === 0){ // Make url rel
  329. $p = substr($p, strlen($C['base_url']));
  330. }elseif(empty($m[1])){ // Make URL abs
  331. if(substr($p, 0, 2) == '//'){$p = substr($C['base_url'], 0, strpos($C['base_url'], ':')+1). $p;}
  332. elseif($p[0] == '/'){$p = preg_replace('`(^.+?://[^/]+)(.*)`', '$1', $C['base_url']). $p;}
  333. elseif(strcspn($p, './')){$p = $C['base_url']. $p;}
  334. else{
  335. preg_match('`^([a-zA-Z\d\-+.]+://[^/]+)(.*)`', $C['base_url'], $m);
  336. $p = preg_replace('`(?<=/)\./`', '', $m[2]. $p);
  337. while(preg_match('`(?<=/)([^/]{3,}|[^/.]+?|\.[^/.]|[^/.]\.)/\.\./`', $p)){
  338. $p = preg_replace('`(?<=/)([^/]{3,}|[^/.]+?|\.[^/.]|[^/.]\.)/\.\./`', '', $p);
  339. }
  340. $p = $m[1]. $p;
  341. }
  342. }
  343. }
  344. return "{$b}{$p}{$a}";
  345. // eof
  346. }
  347. function hl_regex($p){
  348. // ?regex
  349. if(empty($p)){return 0;}
  350. if($t = ini_get('track_errors')){$o = isset($php_errormsg) ? $php_errormsg : null;}
  351. else{ini_set('track_errors', 1);}
  352. unset($php_errormsg);
  353. if(($d = ini_get('display_errors'))){ini_set('display_errors', 0);}
  354. preg_match($p, '');
  355. if($d){ini_set('display_errors', 1);}
  356. $r = isset($php_errormsg) ? 0 : 1;
  357. if($t){$php_errormsg = isset($o) ? $o : null;}
  358. else{ini_set('track_errors', 0);}
  359. return $r;
  360. // eof
  361. }
  362. function hl_spec($t){
  363. // final $spec
  364. $s = array();
  365. $t = str_replace(array("\t", "\r", "\n", ' '), '', preg_replace_callback('/"(?>(`.|[^"])*)"/sm', create_function('$m', 'return substr(str_replace(array(";", "|", "~", " ", ",", "/", "(", ")", \'`"\'), array("\x01", "\x02", "\x03", "\x04", "\x05", "\x06", "\x07", "\x08", "\""), $m[0]), 1, -1);'), trim($t)));
  366. for($i = count(($t = explode(';', $t))); --$i>=0;){
  367. $w = $t[$i];
  368. if(empty($w) or ($e = strpos($w, '=')) === false or !strlen(($a = substr($w, $e+1)))){continue;}
  369. $y = $n = array();
  370. foreach(explode(',', $a) as $v){
  371. if(!preg_match('`^([a-z:\-\*]+)(?:\((.*?)\))?`i', $v, $m)){continue;}
  372. if(($x = strtolower($m[1])) == '-*'){$n['*'] = 1; continue;}
  373. if($x[0] == '-'){$n[substr($x, 1)] = 1; continue;}
  374. if(!isset($m[2])){$y[$x] = 1; continue;}
  375. foreach(explode('/', $m[2]) as $m){
  376. if(empty($m) or ($p = strpos($m, '=')) == 0 or $p < 5){$y[$x] = 1; continue;}
  377. $y[$x][strtolower(substr($m, 0, $p))] = str_replace(array("\x01", "\x02", "\x03", "\x04", "\x05", "\x06", "\x07", "\x08"), array(";", "|", "~", " ", ",", "/", "(", ")"), substr($m, $p+1));
  378. }
  379. if(isset($y[$x]['match']) && !hl_regex($y[$x]['match'])){unset($y[$x]['match']);}
  380. if(isset($y[$x]['nomatch']) && !hl_regex($y[$x]['nomatch'])){unset($y[$x]['nomatch']);}
  381. }
  382. if(!count($y) && !count($n)){continue;}
  383. foreach(explode(',', substr($w, 0, $e)) as $v){
  384. if(!strlen(($v = strtolower($v)))){continue;}
  385. if(count($y)){$s[$v] = $y;}
  386. if(count($n)){$s[$v]['n'] = $n;}
  387. }
  388. }
  389. return $s;
  390. // eof
  391. }
  392. function hl_tag($t){
  393. // tag/attribute handler
  394. global $C;
  395. $t = $t[0];
  396. // invalid < >
  397. if($t == '< '){return '&lt; ';}
  398. if($t == '>'){return '&gt;';}
  399. if(!preg_match('`^<(/?)([a-zA-Z][a-zA-Z1-6]*)([^>]*?)\s?>$`m', $t, $m)){
  400. return str_replace(array('<', '>'), array('&lt;', '&gt;'), $t);
  401. }elseif(!isset($C['elements'][($e = strtolower($m[2]))])){
  402. return (($C['keep_bad']%2) ? str_replace(array('<', '>'), array('&lt;', '&gt;'), $t) : '');
  403. }
  404. // attr string
  405. $a = str_replace(array("\n", "\r", "\t"), ' ', trim($m[3]));
  406. // tag transform
  407. static $eD = array('acronym'=>1, 'applet'=>1, 'big'=>1, 'center'=>1, 'dir'=>1, 'font'=>1, 'isindex'=>1, 's'=>1, 'strike'=>1, 'tt'=>1); // Deprecated
  408. if($C['make_tag_strict'] && isset($eD[$e])){
  409. $trt = hl_tag2($e, $a, $C['make_tag_strict']);
  410. if(!$e){return (($C['keep_bad']%2) ? str_replace(array('<', '>'), array('&lt;', '&gt;'), $t) : '');}
  411. }
  412. // close tag
  413. static $eE = array('area'=>1, 'br'=>1, 'col'=>1, 'command'=>1, 'embed'=>1, 'hr'=>1, 'img'=>1, 'input'=>1, 'isindex'=>1, 'keygen'=>1, 'link'=>1, 'meta'=>1, 'param'=>1, 'source'=>1, 'track'=>1, 'wbr'=>1); // Empty ele
  414. if(!empty($m[1])){
  415. return (!isset($eE[$e]) ? (empty($C['hook_tag']) ? "</$e>" : $C['hook_tag']($e)) : (($C['keep_bad'])%2 ? str_replace(array('<', '>'), array('&lt;', '&gt;'), $t) : ''));
  416. }
  417. // open tag & attr
  418. static $aN = array('abbr'=>array('td'=>1, 'th'=>1), 'accept-charset'=>array('form'=>1), 'accept'=>array('form'=>1, 'input'=>1), 'action'=>array('form'=>1), 'align'=>array('caption'=>1, 'embed'=>1, 'applet'=>1, 'iframe'=>1, 'img'=>1, 'input'=>1, 'object'=>1, 'legend'=>1, 'table'=>1, 'hr'=>1, 'div'=>1, 'h1'=>1, 'h2'=>1, 'h3'=>1, 'h4'=>1, 'h5'=>1, 'h6'=>1, 'p'=>1, 'col'=>1, 'colgroup'=>1, 'tbody'=>1, 'td'=>1, 'tfoot'=>1, 'th'=>1, 'thead'=>1, 'tr'=>1), 'alt'=>array('applet'=>1, 'area'=>1, 'img'=>1, 'input'=>1), 'archive'=>array('applet'=>1, 'object'=>1), 'async'=>array('script'=>1), 'autocomplete'=>array('input'=>1), 'autofocus'=>array('button'=>1, 'input'=>1, 'keygen'=>1, 'select'=>1, 'textarea'=>1), 'autoplay'=>array('audio'=>1, 'video'=>1), 'axis'=>array('td'=>1, 'th'=>1), 'bgcolor'=>array('embed'=>1, 'table'=>1, 'tr'=>1, 'td'=>1, 'th'=>1), 'border'=>array('table'=>1, 'img'=>1, 'object'=>1), 'bordercolor'=>array('table'=>1, 'td'=>1, 'tr'=>1), 'cellpadding'=>array('table'=>1), 'cellspacing'=>array('table'=>1), 'challenge'=>array('keygen'=>1), 'char'=>array('col'=>1, 'colgroup'=>1, 'tbody'=>1, 'td'=>1, 'tfoot'=>1, 'th'=>1, 'thead'=>1, 'tr'=>1), 'charoff'=>array('col'=>1, 'colgroup'=>1, 'tbody'=>1, 'td'=>1, 'tfoot'=>1, 'th'=>1, 'thead'=>1, 'tr'=>1), 'charset'=>array('a'=>1, 'script'=>1), 'checked'=>array('command'=>1, 'input'=>1), 'cite'=>array('blockquote'=>1, 'q'=>1, 'del'=>1, 'ins'=>1), 'classid'=>array('object'=>1), 'clear'=>array('br'=>1), 'code'=>array('applet'=>1), 'codebase'=>array('object'=>1, 'applet'=>1), 'codetype'=>array('object'=>1), 'color'=>array('font'=>1), 'cols'=>array('textarea'=>1), 'colspan'=>array('td'=>1, 'th'=>1), 'compact'=>array('dir'=>1, 'dl'=>1, 'menu'=>1, 'ol'=>1, 'ul'=>1), 'content'=>array('meta'=>1), 'controls'=>array('audio'=>1, 'video'=>1), 'coords'=>array('area'=>1, 'a'=>1), 'crossorigin'=>array('img'=>1), 'data'=>array('object'=>1), 'datetime'=>array('del'=>1, 'ins'=>1, 'time'=>1), 'declare'=>array('object'=>1), 'default'=>array('track'=>1), 'defer'=>array('script'=>1), 'dirname'=>array('input'=>1, 'textarea'=>1), 'disabled'=>array('button'=>1, 'command'=>1, 'fieldset'=>1, 'input'=>1, 'keygen'=>1, 'optgroup'=>1, 'option'=>1, 'select'=>1, 'textarea'=>1), 'download'=>array('a'=>1), 'enctype'=>array('form'=>1), 'face'=>array('font'=>1), 'flashvars'=>array('embed'=>1), 'for'=>array('label'=>1, 'output'=>1), 'form'=>array('button'=>1, 'fieldset'=>1, 'input'=>1, 'keygen'=>1, 'label'=>1, 'object'=>1, 'output'=>1, 'select'=>1, 'textarea'=>1), 'formaction'=>array('button'=>1, 'input'=>1), 'formenctype'=>array('button'=>1, 'input'=>1), 'formmethod'=>array('button'=>1, 'input'=>1), 'formnovalidate'=>array('button'=>1, 'input'=>1), 'formtarget'=>array('button'=>1, 'input'=>1), 'frame'=>array('table'=>1), 'frameborder'=>array('iframe'=>1), 'headers'=>array('td'=>1, 'th'=>1), 'height'=>array('canvas'=>1, 'embed'=>1, 'iframe'=>1, 'input'=>1, 'td'=>1, 'th'=>1, 'img'=>1, 'object'=>1, 'applet'=>1, 'video'=>1), 'high'=>array('meter'=>1), 'href'=>array('a'=>1, 'area'=>1, 'link'=>1), 'hreflang'=>array('a'=>1, 'area'=>1, 'link'=>1), 'hspace'=>array('applet'=>1, 'embed'=>1, 'img'=>1, 'object'=>1), 'icon'=>array('command'=>1), 'ismap'=>array('img'=>1, 'input'=>1), 'keyparams'=>array('keygen'=>1), 'keytype'=>array('keygen'=>1), 'kind'=>array('track'=>1), 'label'=>array('command'=>1, 'menu'=>1, 'option'=>1, 'optgroup'=>1, 'track'=>1), 'language'=>array('script'=>1), 'list'=>array('input'=>1), 'longdesc'=>array('img'=>1, 'iframe'=>1), 'loop'=>array('audio'=>1, 'video'=>1), 'low'=>array('meter'=>1), 'marginheight'=>array('iframe'=>1), 'marginwidth'=>array('iframe'=>1), 'max'=>array('input'=>1, 'meter'=>1, 'progress'=>1), 'maxlength'=>array('input'=>1, 'textarea'=>1), 'media'=>array('a'=>1, 'area'=>1, 'link'=>1, 'source'=>1, 'style'=>1), 'mediagroup'=>array('audio'=>1, 'video'=>1), 'method'=>array('form'=>1), 'min'=>array('input'=>1, 'meter'=>1), 'model'=>array('embed'=>1), 'multiple'=>array('input'=>1, 'select'=>1), 'muted'=>array('audio'=>1, 'video'=>1), 'name'=>array('button'=>1, 'embed'=>1, 'fieldset'=>1, 'keygen'=>1, 'output'=>1, 'textarea'=>1, 'applet'=>1, 'select'=>1, 'form'=>1, 'iframe'=>1, 'img'=>1, 'a'=>1, 'input'=>1, 'object'=>1, 'map'=>1, 'param'=>1), 'nohref'=>array('area'=>1), 'noshade'=>array('hr'=>1), 'novalidate'=>array('form'=>1), 'nowrap'=>array('td'=>1, 'th'=>1), 'object'=>array('applet'=>1), 'open'=>array('details'=>1), 'optimum'=>array('meter'=>1), 'pattern'=>array('input'=>1), 'ping'=>array('a'=>1), 'placeholder'=>array('input'=>1, 'textarea'=>1), 'pluginspage'=>array('embed'=>1), 'pluginurl'=>array('embed'=>1), 'poster'=>array('video'=>1), 'pqg'=>array('keygen'=>1), 'preload'=>array('audio'=>1, 'video'=>1), 'prompt'=>array('isindex'=>1), 'radiogroup'=>array('command'=>1), 'readonly'=>array('textarea'=>1, 'input'=>1), 'rel'=>array('a'=>1, 'area'=>1, 'link'=>1), 'required'=>array('input'=>1, 'select'=>1, 'textarea'=>1), 'rev'=>array('a'=>1), 'reversed'=>array('ol'=>1), 'rows'=>array('textarea'=>1), 'rowspan'=>array('td'=>1, 'th'=>1), 'rules'=>array('table'=>1), 'sandbox'=>array('iframe'=>1), 'scope'=>array('td'=>1, 'th'=>1), 'scoped'=>array('style'=>1), 'scrolling'=>array('iframe'=>1), 'seamless'=>array('iframe'=>1), 'selected'=>array('option'=>1), 'shape'=>array('area'=>1, 'a'=>1), 'size'=>array('hr'=>1, 'font'=>1, 'input'=>1, 'select'=>1), 'sizes'=>array('link'=>1), 'span'=>array('col'=>1, 'colgroup'=>1), 'src'=>array('audio'=>1, 'embed'=>1, 'iframe'=>1, 'img'=>1, 'input'=>1, 'source'=>1, 'script'=>1, 'track'=>1, 'video'=>1), 'srcdoc'=>array('iframe'=>1), 'srclang'=>array('track'=>1), 'standby'=>array('object'=>1), 'start'=>array('ol'=>1), 'step'=>array('input'=>1), 'summary'=>array('table'=>1), 'target'=>array('a'=>1, 'area'=>1, 'form'=>1), 'type'=>array('a'=>1, 'area'=>1, 'command'=>1, 'embed'=>1, 'link'=>1, 'menu'=>1, 'object'=>1, 'param'=>1, 'script'=>1, 'source'=>1, 'style'=>1, 'input'=>1, 'li'=>1, 'ol'=>1, 'ul'=>1, 'button'=>1), 'typemustmatch'=>array('object'=>1), 'usemap'=>array('img'=>1, 'input'=>1, 'object'=>1), 'valign'=>array('col'=>1, 'colgroup'=>1, 'tbody'=>1, 'td'=>1, 'tfoot'=>1, 'th'=>1, 'thead'=>1, 'tr'=>1), 'value'=>array('data'=>1, 'input'=>1, 'meter'=>1, 'option'=>1, 'param'=>1, 'progress'=>1, 'button'=>1, 'li'=>1), 'valuetype'=>array('param'=>1), 'vspace'=>array('applet'=>1, 'embed'=>1, 'img'=>1, 'object'=>1), 'width'=>array('canvas'=>1, 'embed'=>1, 'hr'=>1, 'iframe'=>1, 'img'=>1, 'input'=>1, 'object'=>1, 'table'=>1, 'td'=>1, 'th'=>1, 'applet'=>1, 'col'=>1, 'colgroup'=>1, 'pre'=>1, 'video'=>1), 'wmode'=>array('embed'=>1), 'wrap'=>array('textarea'=>1)); // Ele-specific
  419. static $aNE = array('checkbox'=>1, 'checked'=>1, 'command'=>1, 'compact'=>1, 'declare'=>1, 'defer'=>1, 'default'=>1, 'disabled'=>1, 'ismap'=>1, 'itemscope'=>1, 'multiple'=>1, 'nohref'=>1, 'noresize'=>1, 'noshade'=>1, 'nowrap'=>1, 'open'=>1, 'radio'=>1, 'readonly'=>1, 'required'=>1, 'reversed'=>1, 'selected'=>1); // Empty
  420. static $aNP = array('action'=>1, 'cite'=>1, 'classid'=>1, 'codebase'=>1, 'data'=>1, 'href'=>1, 'itemtype'=>1, 'longdesc'=>1, 'model'=>1, 'pluginspage'=>1, 'pluginurl'=>1, 'usemap'=>1); // Need scheme check; excludes style, on* & src
  421. static $aNU = array('accesskey'=>1, 'aria-activedescendant'=>1, 'aria-atomic'=>1, 'aria-autocomplete'=>1, 'aria-busy'=>1, 'aria-checked'=>1, 'aria-controls'=>1, 'aria-describedby'=>1, 'aria-disabled'=>1, 'aria-dropeffect'=>1, 'aria-expanded'=>1, 'aria-flowto'=>1, 'aria-grabbed'=>1, 'aria-haspopup'=>1, 'aria-hidden'=>1, 'aria-invalid'=>1, 'aria-label'=>1, 'aria-labelledby'=>1, 'aria-level'=>1, 'aria-live'=>1, 'aria-multiline'=>1, 'aria-multiselectable'=>1, 'aria-orientation'=>1, 'aria-owns'=>1, 'aria-posinset'=>1, 'aria-pressed'=>1, 'aria-readonly'=>1, 'aria-relevant'=>1, 'aria-required'=>1, 'aria-selected'=>1, 'aria-setsize'=>1, 'aria-sort'=>1, 'aria-valuemax'=>1, 'aria-valuemin'=>1, 'aria-valuenow'=>1, 'aria-valuetext'=>1, 'class'=>1, 'contenteditable'=>1, 'contextmenu'=>1, 'dir'=>1, 'draggable'=>1, 'dropzone'=>1, 'hidden'=>1, 'id'=>1, 'inert'=>1, 'itemid'=>1, 'itemprop'=>1, 'itemref'=>1, 'itemscope'=>1, 'itemtype'=>1, 'lang'=>1, 'spellcheck'=>1, 'style'=>1, 'tabindex'=>1, 'title'=>1, 'translate'=>1, 'onabort'=>1, 'onblur'=>1, 'oncanplay'=>1, 'oncanplaythrough'=>1, 'onchange'=>1, 'onclick'=>1, 'oncontextmenu'=>1, 'oncuechange'=>1, 'ondblclick'=>1, 'ondrag'=>1, 'ondragend'=>1, 'ondragenter'=>1, 'ondragleave'=>1, 'ondragover'=>1, 'ondragstart'=>1, 'ondrop'=>1, 'ondurationchange'=>1, 'onemptied'=>1, 'onended'=>1, 'onerror'=>1, 'onfocus'=>1, 'oninput'=>1, 'oninvalid'=>1, 'onkeydown'=>1, 'onkeypress'=>1, 'onkeyup'=>1, 'onload'=>1, 'onloadeddata'=>1, 'onloadedmetadata'=>1, 'onloadstart'=>1, 'onmousedown'=>1, 'onmousemove'=>1, 'onmouseout'=>1, 'onmouseover'=>1, 'onmouseup'=>1, 'onmousewheel'=>1, 'onpause'=>1, 'onplay'=>1, 'onplaying'=>1, 'onprogress'=>1, 'onratechange'=>1, 'onreadystatechange'=>1, 'onreset'=>1, 'onscroll'=>1, 'onseeked'=>1, 'onseeking'=>1, 'onselect'=>1, 'onshow'=>1, 'onstalled'=>1, 'onsubmit'=>1, 'onsuspend'=>1, 'ontimeupdate'=>1, 'onvolumechange'=>1, 'onwaiting'=>1, 'role'=>1, 'translate'=>1, 'xmlns'=>1, 'xml:base'=>1, 'xml:lang'=>1, 'xml:space'=>1); // Univ
  422. if($C['lc_std_val']){
  423. // predef attr vals for $eAL & $aNE ele
  424. static $aNL = array('all'=>1, 'auto'=>1, 'baseline'=>1, 'bottom'=>1, 'button'=>1, 'captions'=>1, 'center'=>1, 'chapters'=>1, 'char'=>1, 'checkbox'=>1, 'circle'=>1, 'col'=>1, 'colgroup'=>1, 'color'=>1, 'cols'=>1, 'data'=>1, 'date'=>1, 'datetime'=>1, 'datetime-local'=>1, 'default'=>1, 'descriptions'=>1, 'email'=>1, 'file'=>1, 'get'=>1, 'groups'=>1, 'hidden'=>1, 'image'=>1, 'justify'=>1, 'left'=>1, 'ltr'=>1, 'metadata'=>1, 'middle'=>1, 'month'=>1, 'none'=>1, 'number'=>1, 'object'=>1, 'password'=>1, 'poly'=>1, 'post'=>1, 'preserve'=>1, 'radio'=>1, 'range'=>1, 'rect'=>1, 'ref'=>1, 'reset'=>1, 'right'=>1, 'row'=>1, 'rowgroup'=>1, 'rows'=>1, 'rtl'=>1, 'search'=>1, 'submit'=>1, 'subtitles'=>1, 'tel'=>1, 'text'=>1, 'top'=>1, 'url'=>1, 'week'=>1);
  425. static $eAL = array('a'=>1, 'area'=>1, 'bdo'=>1, 'button'=>1, 'col'=>1, 'fieldset'=>1, 'form'=>1, 'img'=>1, 'input'=>1, 'object'=>1, 'ol'=>1, 'optgroup'=>1, 'option'=>1, 'param'=>1, 'script'=>1, 'select'=>1, 'table'=>1, 'td'=>1, 'textarea'=>1, 'tfoot'=>1, 'th'=>1, 'thead'=>1, 'tr'=>1, 'track'=>1, 'xml:space'=>1);
  426. $lcase = isset($eAL[$e]) ? 1 : 0;
  427. }
  428. $depTr = 0;
  429. if($C['no_deprecated_attr']){
  430. // dep attr:applicable ele
  431. static $aND = array('align'=>array('caption'=>1, 'div'=>1, 'h1'=>1, 'h2'=>1, 'h3'=>1, 'h4'=>1, 'h5'=>1, 'h6'=>1, 'hr'=>1, 'img'=>1, 'input'=>1, 'legend'=>1, 'object'=>1, 'p'=>1, 'table'=>1), 'bgcolor'=>array('table'=>1, 'td'=>1, 'th'=>1, 'tr'=>1), 'border'=>array('object'=>1), 'bordercolor'=>array('table'=>1, 'td'=>1, 'tr'=>1), 'clear'=>array('br'=>1), 'compact'=>array('dl'=>1, 'ol'=>1, 'ul'=>1), 'height'=>array('td'=>1, 'th'=>1), 'hspace'=>array('img'=>1, 'object'=>1), 'language'=>array('script'=>1), 'name'=>array('a'=>1, 'form'=>1, 'iframe'=>1, 'img'=>1, 'map'=>1), 'noshade'=>array('hr'=>1), 'nowrap'=>array('td'=>1, 'th'=>1), 'size'=>array('hr'=>1), 'vspace'=>array('img'=>1, 'object'=>1), 'width'=>array('hr'=>1, 'pre'=>1, 'td'=>1, 'th'=>1));
  432. static $eAD = array('a'=>1, 'br'=>1, 'caption'=>1, 'div'=>1, 'dl'=>1, 'form'=>1, 'h1'=>1, 'h2'=>1, 'h3'=>1, 'h4'=>1, 'h5'=>1, 'h6'=>1, 'hr'=>1, 'iframe'=>1, 'img'=>1, 'input'=>1, 'legend'=>1, 'map'=>1, 'object'=>1, 'ol'=>1, 'p'=>1, 'pre'=>1, 'script'=>1, 'table'=>1, 'td'=>1, 'th'=>1, 'tr'=>1, 'ul'=>1);
  433. $depTr = isset($eAD[$e]) ? 1 : 0;
  434. }
  435. // attr name-vals
  436. if(strpos($a, "\x01") !== false){$a = preg_replace('`\x01[^\x01]*\x01`', '', $a);} // No comment/CDATA sec
  437. $mode = 0; $a = trim($a, ' /'); $aA = array();
  438. while(strlen($a)){
  439. $w = 0;
  440. switch($mode){
  441. case 0: // Name
  442. if(preg_match('`^[a-zA-Z][^\s=]+`', $a, $m)){
  443. $nm = strtolower($m[0]);
  444. $w = $mode = 1; $a = ltrim(substr_replace($a, '', 0, strlen($m[0])));
  445. }
  446. break; case 1:
  447. if($a[0] == '='){ // =
  448. $w = 1; $mode = 2; $a = ltrim($a, '= ');
  449. }else{ // No val
  450. $w = 1; $mode = 0; $a = ltrim($a);
  451. $aA[$nm] = '';
  452. }
  453. break; case 2: // Val
  454. if(preg_match('`^((?:"[^"]*")|(?:\'[^\']*\')|(?:\s*[^\s"\']+))(.*)`', $a, $m)){
  455. $a = ltrim($m[2]); $m = $m[1]; $w = 1; $mode = 0;
  456. $aA[$nm] = trim(($m[0] == '"' or $m[0] == '\'') ? substr($m, 1, -1) : $m);
  457. }
  458. break;
  459. }
  460. if($w == 0){ // Parse errs, deal with space, " & '
  461. $a = preg_replace('`^(?:"[^"]*("|$)|\'[^\']*(\'|$)|\S)*\s*`', '', $a);
  462. $mode = 0;
  463. }
  464. }
  465. if($mode == 1){$aA[$nm] = '';}
  466. // clean attrs
  467. global $S;
  468. $rl = isset($S[$e]) ? $S[$e] : array();
  469. $a = array(); $nfr = 0;
  470. foreach($aA as $k=>$v){
  471. if(((isset($C['deny_attribute']['*']) ? isset($C['deny_attribute'][$k]) : !isset($C['deny_attribute'][$k])) && (isset($aN[$k][$e]) or isset($aNU[$k]) or preg_match('`data-((?!xml)[^:]+$)`', $k)) && !isset($rl['n'][$k]) && !isset($rl['n']['*'])) or isset($rl[$k])){
  472. if(isset($aNE[$k])){$v = $k;}
  473. elseif(!empty($lcase) && (($e != 'button' or $e != 'input') or $k == 'type')){ // Rather loose but ?not cause issues
  474. $v = (isset($aNL[($v2 = strtolower($v))])) ? $v2 : $v;
  475. }
  476. if($k == 'style' && !$C['style_pass']){
  477. if(false !== strpos($v, '&#')){
  478. static $sC = array('&#x20;'=>' ', '&#32;'=>' ', '&#x45;'=>'e', '&#69;'=>'e', '&#x65;'=>'e', '&#101;'=>'e', '&#x58;'=>'x', '&#88;'=>'x', '&#x78;'=>'x', '&#120;'=>'x', '&#x50;'=>'p', '&#80;'=>'p', '&#x70;'=>'p', '&#112;'=>'p', '&#x53;'=>'s', '&#83;'=>'s', '&#x73;'=>'s', '&#115;'=>'s', '&#x49;'=>'i', '&#73;'=>'i', '&#x69;'=>'i', '&#105;'=>'i', '&#x4f;'=>'o', '&#79;'=>'o', '&#x6f;'=>'o', '&#111;'=>'o', '&#x4e;'=>'n', '&#78;'=>'n', '&#x6e;'=>'n', '&#110;'=>'n', '&#x55;'=>'u', '&#85;'=>'u', '&#x75;'=>'u', '&#117;'=>'u', '&#x52;'=>'r', '&#82;'=>'r', '&#x72;'=>'r', '&#114;'=>'r', '&#x4c;'=>'l', '&#76;'=>'l', '&#x6c;'=>'l', '&#108;'=>'l', '&#x28;'=>'(', '&#40;'=>'(', '&#x29;'=>')', '&#41;'=>')', '&#x20;'=>':', '&#32;'=>':', '&#x22;'=>'"', '&#34;'=>'"', '&#x27;'=>"'", '&#39;'=>"'", '&#x2f;'=>'/', '&#47;'=>'/', '&#x2a;'=>'*', '&#42;'=>'*', '&#x5c;'=>'\\', '&#92;'=>'\\');
  479. $v = strtr($v, $sC);
  480. }
  481. $v = preg_replace_callback('`(url(?:\()(?: )*(?:\'|"|&(?:quot|apos);)?)(.+?)((?:\'|"|&(?:quot|apos);)?(?: )*(?:\)))`iS', 'hl_prot', $v);
  482. $v = !$C['css_expression'] ? preg_replace('`expression`i', ' ', preg_replace('`\\\\\S|(/|(%2f))(\*|(%2a))`i', ' ', $v)) : $v;
  483. }elseif(isset($aNP[$k]) or strpos($k, 'src') !== false or $k[0] == 'o'){
  484. $v = str_replace("\xad", ' ', (strpos($v, '&') !== false ? str_replace(array('&#xad;', '&#173;', '&shy;'), ' ', $v) : $v));
  485. $v = hl_prot($v, $k);
  486. if($k == 'href'){ // X-spam
  487. if($C['anti_mail_spam'] && strpos($v, 'mailto:') === 0){
  488. $v = str_replace('@', htmlspecialchars($C['anti_mail_spam']), $v);
  489. }elseif($C['anti_link_spam']){
  490. $r1 = $C['anti_link_spam'][1];
  491. if(!empty($r1) && preg_match($r1, $v)){continue;}
  492. $r0 = $C['anti_link_spam'][0];
  493. if(!empty($r0) && preg_match($r0, $v)){
  494. if(isset($a['rel'])){
  495. if(!preg_match('`\bnofollow\b`i', $a['rel'])){$a['rel'] .= ' nofollow';}
  496. }elseif(isset($aA['rel'])){
  497. if(!preg_match('`\bnofollow\b`i', $aA['rel'])){$nfr = 1;}
  498. }else{$a['rel'] = 'nofollow';}
  499. }
  500. }
  501. }
  502. }
  503. if(isset($rl[$k]) && is_array($rl[$k]) && ($v = hl_attrval($v, $rl[$k])) === 0){continue;}
  504. $a[$k] = str_replace('"', '&quot;', $v);
  505. }
  506. }
  507. if($nfr){$a['rel'] = isset($a['rel']) ? $a['rel']. ' nofollow' : 'nofollow';}
  508. // rqd attr
  509. static $eAR = array('area'=>array('alt'=>'area'), 'bdo'=>array('dir'=>'ltr'), 'command'=>array('label'=>''), 'form'=>array('action'=>''), 'img'=>array('src'=>'', 'alt'=>'image'), 'map'=>array('name'=>''), 'optgroup'=>array('label'=>''), 'param'=>array('name'=>''), 'style'=>array('scoped'=>''), 'textarea'=>array('rows'=>'10', 'cols'=>'50'));
  510. if(isset($eAR[$e])){
  511. foreach($eAR[$e] as $k=>$v){
  512. if(!isset($a[$k])){$a[$k] = isset($v[0]) ? $v : $k;}
  513. }
  514. }
  515. // depr attrs
  516. if($depTr){
  517. $c = array();
  518. foreach($a as $k=>$v){
  519. if($k == 'style' or !isset($aND[$k][$e])){continue;}
  520. if($k == 'align'){
  521. unset($a['align']);
  522. if($e == 'img' && ($v == 'left' or $v == 'right')){$c[] = 'float: '. $v;}
  523. elseif(($e == 'div' or $e == 'table') && $v == 'center'){$c[] = 'margin: auto';}
  524. else{$c[] = 'text-align: '. $v;}
  525. }elseif($k == 'bgcolor'){
  526. unset($a['bgcolor']);
  527. $c[] = 'background-color: '. $v;
  528. }elseif($k == 'border'){
  529. unset($a['border']); $c[] = "border: {$v}px";
  530. }elseif($k == 'bordercolor'){
  531. unset($a['bordercolor']); $c[] = 'border-color: '. $v;
  532. }elseif($k == 'clear'){
  533. unset($a['clear']); $c[] = 'clear: '. ($v != 'all' ? $v : 'both');
  534. }elseif($k == 'compact'){
  535. unset($a['compact']); $c[] = 'font-size: 85%';
  536. }elseif($k == 'height' or $k == 'width'){
  537. unset($a[$k]); $c[] = $k. ': '. ($v[0] != '*' ? $v. (ctype_digit($v) ? 'px' : '') : 'auto');
  538. }elseif($k == 'hspace'){
  539. unset($a['hspace']); $c[] = "margin-left: {$v}px; margin-right: {$v}px";
  540. }elseif($k == 'language' && !isset($a['type'])){
  541. unset($a['language']);
  542. $a['type'] = 'text/'. strtolower($v);
  543. }elseif($k == 'name'){
  544. if($C['no_deprecated_attr'] == 2 or ($e != 'a' && $e != 'map')){unset($a['name']);}
  545. if(!isset($a['id']) && !preg_match('`\W`', $v)){$a['id'] = $v;}
  546. }elseif($k == 'noshade'){
  547. unset($a['noshade']); $c[] = 'border-style: none; border: 0; background-color: gray; color: gray';
  548. }elseif($k == 'nowrap'){
  549. unset($a['nowrap']); $c[] = 'white-space: nowrap';
  550. }elseif($k == 'size'){
  551. unset($a['size']); $c[] = 'size: '. $v. 'px';
  552. }elseif($k == 'vspace'){
  553. unset($a['vspace']); $c[] = "margin-top: {$v}px; margin-bottom: {$v}px";
  554. }
  555. }
  556. if(count($c)){
  557. $c = implode('; ', $c);
  558. $a['style'] = isset($a['style']) ? rtrim($a['style'], ' ;'). '; '. $c. ';': $c. ';';
  559. }
  560. }
  561. // unique ID
  562. if($C['unique_ids'] && isset($a['id'])){
  563. if(preg_match('`\s`', ($id = $a['id'])) or (isset($GLOBALS['hl_Ids'][$id]) && $C['unique_ids'] == 1)){unset($a['id']);
  564. }else{
  565. while(isset($GLOBALS['hl_Ids'][$id])){$id = $C['unique_ids']. $id;}
  566. $GLOBALS['hl_Ids'][($a['id'] = $id)] = 1;
  567. }
  568. }
  569. // xml:lang
  570. if($C['xml:lang'] && isset($a['lang'])){
  571. $a['xml:lang'] = isset($a['xml:lang']) ? $a['xml:lang'] : $a['lang'];
  572. if($C['xml:lang'] == 2){unset($a['lang']);}
  573. }
  574. // for transformed tag
  575. if(!empty($trt)){
  576. $a['style'] = isset($a['style']) ? rtrim($a['style'], ' ;'). '; '. $trt : $trt;
  577. }
  578. // return with empty ele /
  579. if(empty($C['hook_tag'])){
  580. $aA = '';
  581. foreach($a as $k=>$v){$aA .= " {$k}=\"{$v}\"";}
  582. return "<{$e}{$aA}". (isset($eE[$e]) ? ' /' : ''). '>';
  583. }
  584. else{return $C['hook_tag']($e, $a);}
  585. // eof
  586. }
  587. function hl_tag2(&$e, &$a, $t=1){
  588. // transform tag
  589. if($e == 'big'){$e = 'span'; return 'font-size: larger;';}
  590. if($e == 's' or $e == 'strike'){$e = 'span'; return 'text-decoration: line-through;';}
  591. if($e == 'tt'){$e = 'code'; return '';}
  592. if($e == 'center'){$e = 'div'; return 'text-align: center;';}
  593. static $fs = array('0'=>'xx-small', '1'=>'xx-small', '2'=>'small', '3'=>'medium', '4'=>'large', '5'=>'x-large', '6'=>'xx-large', '7'=>'300%', '-1'=>'smaller', '-2'=>'60%', '+1'=>'larger', '+2'=>'150%', '+3'=>'200%', '+4'=>'300%');
  594. if($e == 'font'){
  595. $a2 = '';
  596. if(preg_match('`face\s*=\s*(\'|")([^=]+?)\\1`i', $a, $m) or preg_match('`face\s*=(\s*)(\S+)`i', $a, $m)){
  597. $a2 .= ' font-family: '. str_replace('"', '\'', trim($m[2])). ';';
  598. }
  599. if(preg_match('`color\s*=\s*(\'|")?(.+?)(\\1|\s|$)`i', $a, $m)){
  600. $a2 .= ' color: '. trim($m[2]). ';';
  601. }
  602. if(preg_match('`size\s*=\s*(\'|")?(.+?)(\\1|\s|$)`i', $a, $m) && isset($fs[($m = trim($m[2]))])){
  603. $a2 .= ' font-size: '. $fs[$m]. ';';
  604. }
  605. $e = 'span'; return ltrim($a2);
  606. }
  607. if($e == 'acronym'){$e = 'abbr'; return '';}
  608. if($e == 'dir'){$e = 'ul'; return '';}
  609. if($t == 2){$e = 0; return 0;}
  610. return '';
  611. // eof
  612. }
  613. function hl_tidy($t, $w, $p){
  614. // Tidy/compact HTM
  615. if(strpos(' pre,script,textarea', "$p,")){return $t;}
  616. $t = preg_replace(array('`(<\w[^>]*(?<!/)>)\s+`', '`\s+`', '`(<\w[^>]*(?<!/)>) `'), array(' $1', ' ', '$1'), preg_replace_callback(array('`(<(!\[CDATA\[))(.+?)(\]\]>)`sm', '`(<(!--))(.+?)(-->)`sm', '`(<(pre|script|textarea)[^>]*?>)(.+?)(</\2>)`sm'), create_function('$m', 'return $m[1]. str_replace(array("<", ">", "\n", "\r", "\t", " "), array("\x01", "\x02", "\x03", "\x04", "\x05", "\x07"), $m[3]). $m[4];'), $t));
  617. if(($w = strtolower($w)) == -1){
  618. return str_replace(array("\x01", "\x02", "\x03", "\x04", "\x05", "\x07"), array('<', '>', "\n", "\r", "\t", ' '), $t);
  619. }
  620. $s = strpos(" $w", 't') ? "\t" : ' ';
  621. $s = preg_match('`\d`', $w, $m) ? str_repeat($s, $m[0]) : str_repeat($s, ($s == "\t" ? 1 : 2));
  622. $N = preg_match('`[ts]([1-9])`', $w, $m) ? $m[1] : 0;
  623. $a = array('br'=>1);
  624. $b = array('button'=>1, 'command'=>1, 'input'=>1, 'option'=>1, 'param'=>1, 'track'=>1);
  625. $c = array('audio'=>1, 'canvas'=>1, 'caption'=>1, 'dd'=>1, 'dt'=>1, 'figcaption'=>1, 'h1'=>1, 'h2'=>1, 'h3'=>1, 'h4'=>1, 'h5'=>1, 'h6'=>1, 'isindex'=>1, 'label'=>1, 'legend'=>1, 'li'=>1, 'object'=>1, 'p'=>1, 'pre'=>1, 'style'=>1, 'summary'=>1, 'td'=>1, 'textarea'=>1, 'th'=>1, 'video'=>1);
  626. $d = array('address'=>1, 'article'=>1, 'aside'=>1, 'blockquote'=>1, 'center'=>1, 'colgroup'=>1, 'datalist'=>1, 'details'=>1, 'dir'=>1, 'div'=>1, 'dl'=>1, 'fieldset'=>1, 'figure'=>1, 'footer'=>1, 'form'=>1, 'header'=>1, 'hgroup'=>1, 'hr'=>1, 'iframe'=>1, 'main'=>1, 'map'=>1, 'menu'=>1, 'nav'=>1, 'noscript'=>1, 'ol'=>1, 'optgroup'=>1, 'rbc'=>1, 'rtc'=>1, 'ruby'=>1, 'script'=>1, 'section'=>1, 'select'=>1, 'table'=>1, 'tbody'=>1, 'tfoot'=>1, 'thead'=>1, 'tr'=>1, 'ul'=>1);
  627. $T = explode('<', $t);
  628. $X = 1;
  629. while($X){
  630. $n = $N;
  631. $t = $T;
  632. ob_start();
  633. if(isset($d[$p])){echo str_repeat($s, ++$n);}
  634. echo ltrim(array_shift($t));
  635. for($i=-1, $j=count($t); ++$i<$j;){
  636. $r = ''; list($e, $r) = explode('>', $t[$i]);
  637. $x = $e[0] == '/' ? 0 : (substr($e, -1) == '/' ? 1 : ($e[0] != '!' ? 2 : -1));
  638. $y = !$x ? ltrim($e, '/') : ($x > 0 ? substr($e, 0, strcspn($e, ' ')) : 0);
  639. $e = "<$e>";
  640. if(isset($d[$y])){
  641. if(!$x){
  642. if($n){echo "\n", str_repeat($s, --$n), "$e\n", str_repeat($s, $n);}
  643. else{++$N; ob_end_clean(); continue 2;}
  644. }
  645. else{echo "\n", str_repeat($s, $n), "$e\n", str_repeat($s, ($x != 1 ? ++$n : $n));}
  646. echo $r; continue;
  647. }
  648. $f = "\n". str_repeat($s, $n);
  649. if(isset($c[$y])){
  650. if(!$x){echo $e, $f, $r;}
  651. else{echo $f, $e, $r;}
  652. }elseif(isset($b[$y])){echo $f, $e, $r;
  653. }elseif(isset($a[$y])){echo $e, $f, $r;
  654. }elseif(!$y){echo $f, $e, $f, $r;
  655. }else{echo $e, $r;}
  656. }
  657. $X = 0;
  658. }
  659. $t = str_replace(array("\n ", " \n"), "\n", preg_replace('`[\n]\s*?[\n]+`', "\n", ob_get_contents()));
  660. ob_end_clean();
  661. if(($l = strpos(" $w", 'r') ? (strpos(" $w", 'n') ? "\r\n" : "\r") : 0)){
  662. $t = str_replace("\n", $l, $t);
  663. }
  664. return str_replace(array("\x01", "\x02", "\x03", "\x04", "\x05", "\x07"), array('<', '>', "\n", "\r", "\t", ' '), $t);
  665. // eof
  666. }
  667. function hl_version(){
  668. // rel
  669. return '1.2.beta.5';
  670. // eof
  671. }