<?php
-
-// Added wp_ prefix to avoid conflicts with existing kses users
-# kses 0.2.2 - HTML/XHTML filter that only allows some elements and attributes
-# Copyright (C) 2002, 2003, 2005 Ulf Harnhammar
-# *** CONTACT INFORMATION ***
-#
-# E-mail: metaur at users dot sourceforge dot net
-# Web page: http://sourceforge.net/projects/kses
-# Paper mail: Ulf Harnhammar
-# Ymergatan 17 C
-# 753 25 Uppsala
-# SWEDEN
-#
-# [kses strips evil scripts!]
+/**
+ * HTML/XHTML filter that only allows some elements and attributes
+ *
+ * Added wp_ prefix to avoid conflicts with existing kses users
+ *
+ * @version 0.2.2
+ * @copyright (C) 2002, 2003, 2005
+ * @author Ulf Harnhammar <metaur@users.sourceforge.net>
+ *
+ * @package External
+ * @subpackage KSES
+ *
+ * @internal
+ * *** CONTACT INFORMATION ***
+ * E-mail: metaur at users dot sourceforge dot net
+ * Web page: http://sourceforge.net/projects/kses
+ * Paper mail: Ulf Harnhammar
+ * Ymergatan 17 C
+ * 753 25 Uppsala
+ * SWEDEN
+ *
+ * [kses strips evil scripts!]
+ */
+
+/**
+ * You can override this in your my-hacks.php file
+ * You can also override this in a plugin file. The
+ * my-hacks.php is deprecated in its usage.
+ *
+ * @since 1.2.0
+ */
if (!defined('CUSTOM_TAGS'))
define('CUSTOM_TAGS', false);
-// You can override this in your my-hacks.php file
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(
- 'href' => array(), 'title' => array(),
- 'rel' => array(), 'rev' => array(),
- 'name' => array()
- ),
+ 'class' => array (),
+ 'href' => array (),
+ 'id' => array (),
+ 'title' => array (),
+ 'rel' => array (),
+ 'rev' => array (),
+ 'name' => array (),
+ 'target' => array()),
'abbr' => array(
- 'title' => array(), 'class' => array()
- ),
+ 'class' => array (),
+ 'title' => array ()),
'acronym' => array(
- 'title' => array()
- ),
+ 'title' => array ()),
'b' => array(),
'big' => array(),
'blockquote' => array(
- 'cite' => array(), 'xml:lang' => array(),
- 'lang' => array()
- ),
- 'br' => 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()
- ),
+ 'disabled' => array (),
+ 'name' => array (),
+ 'type' => array (),
+ 'value' => array ()),
'caption' => array(
- 'align' => array()
- ),
- 'code' => 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(),
- 'valign' => array(), 'width' => array()
- ),
+ 'align' => array (),
+ 'char' => array (),
+ 'charoff' => array (),
+ 'span' => array (),
+ 'dir' => array(),
+ 'style' => array (),
+ 'valign' => array (),
+ 'width' => array ()),
'del' => array(
- 'datetime' => array()
- ),
+ 'datetime' => array ()),
'dd' => array(),
'div' => array(
- 'align' => array(), 'xml:lang' => array(),
- 'lang' => array()
- ),
+ 'align' => array (),
+ 'class' => array (),
+ 'dir' => array (),
+ 'lang' => array(),
+ 'style' => array (),
+ 'xml:lang' => array()),
'dl' => array(),
'dt' => array(),
'em' => array(),
'fieldset' => array(),
'font' => array(
- 'color' => array(), 'face' => array(),
- 'size' => array()
- ),
+ 'color' => array (),
+ 'face' => array (),
+ 'size' => array ()),
'form' => array(
- 'action' => array(), 'accept' => array(),
- 'accept-charset' => array(), 'enctype' => array(),
- 'method' => array(), 'name' => array(),
- 'target' => array()
- ),
+ 'action' => array (),
+ 'accept' => array (),
+ 'accept-charset' => array (),
+ 'enctype' => array (),
+ 'method' => array (),
+ 'name' => array (),
+ 'target' => array ()),
'h1' => array(
- 'align' => array()
- ),
+ 'align' => array (),
+ 'class' => array ()),
'h2' => array(
- 'align' => array()
- ),
+ 'align' => array (),
+ 'class' => array ()),
'h3' => array(
- 'align' => array()
- ),
+ 'align' => array (),
+ 'class' => array ()),
'h4' => array(
- 'align' => array()
- ),
+ 'align' => array (),
+ 'class' => array ()),
'h5' => array(
- 'align' => array()
- ),
+ 'align' => array (),
+ 'class' => array ()),
'h6' => array(
- 'align' => array()
- ),
+ 'align' => array (),
+ 'class' => array ()),
'hr' => array(
- 'align' => array(), 'noshade' => array(),
- 'size' => array(), 'width' => array()
- ),
+ 'align' => array (),
+ 'class' => array (),
+ 'noshade' => array (),
+ 'size' => array (),
+ 'width' => array ()),
'i' => array(),
'img' => array(
- 'alt' => array(), 'align' => array(),
- 'border' => array(), 'height' => array(),
- 'hspace' => array(), 'longdesc' => array(),
- 'vspace' => array(), 'src' => array(),
- 'width' => 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()
- ),
+ 'datetime' => array (),
+ 'cite' => array ()),
'kbd' => array(),
'label' => array(
- 'for' => array()
- ),
+ 'for' => array ()),
'legend' => array(
- 'align' => array()
- ),
- 'li' => array(),
+ 'align' => array ()),
+ 'li' => array (
+ 'align' => array (),
+ 'class' => array ()),
'p' => array(
- 'align' => array(), 'xml:lang' => array(),
- 'lang' => array()
- ),
+ 'class' => array (),
+ 'align' => array (),
+ 'dir' => array(),
+ 'lang' => array(),
+ 'style' => array (),
+ 'xml:lang' => array()),
'pre' => array(
- 'width' => array()
- ),
+ 'style' => array(),
+ 'width' => array ()),
'q' => array(
- 'cite' => array()
- ),
+ 'cite' => array ()),
's' => array(),
+ 'span' => array (
+ 'class' => array (),
+ 'dir' => array (),
+ 'align' => array (),
+ 'style' => array (),
+ 'title' => array ()),
'strike' => array(),
'strong' => array(),
'sub' => array(),
'sup' => array(),
'table' => array(
- 'align' => array(), 'bgcolor' => array(),
- 'border' => array(), 'cellpadding' => array(),
- 'cellspacing' => array(), 'rules' => array(),
- 'summary' => array(), 'width' => 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()
- ),
+ 'align' => array (),
+ 'char' => array (),
+ 'charoff' => array (),
+ 'valign' => array ()),
'td' => array(
- 'abbr' => array(), 'align' => array(),
- 'axis' => array(), 'bgcolor' => array(),
- 'char' => array(), 'charoff' => array(),
- 'colspan' => array(), 'headers' => array(),
- 'height' => array(), 'nowrap' => array(),
- 'rowspan' => array(), 'scope' => array(),
- 'valign' => array(), 'width' => 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()
- ),
+ 'cols' => array (),
+ 'rows' => array (),
+ 'disabled' => array (),
+ 'name' => array (),
+ 'readonly' => array ()),
'tfoot' => array(
- 'align' => array(), 'char' => array(),
- 'charoff' => array(), 'valign' => 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(),
- 'colspan' => array(), 'headers' => array(),
- 'height' => array(), 'nowrap' => array(),
- 'rowspan' => array(), 'scope' => array(),
- 'valign' => array(), 'width' => 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(), 'valign' => array()
- ),
+ 'align' => array (),
+ 'char' => array (),
+ 'charoff' => array (),
+ 'class' => array (),
+ 'valign' => array ()),
'title' => array(),
'tr' => array(
- 'align' => array(), 'bgcolor' => array(),
- 'char' => array(), 'charoff' => array(),
- 'valign' => array()
- ),
+ 'align' => array (),
+ 'bgcolor' => array (),
+ 'char' => array (),
+ 'charoff' => array (),
+ 'class' => array (),
+ 'style' => array (),
+ 'valign' => array ()),
'tt' => array(),
'u' => array(),
- 'ul' => array(),
- 'ol' => array(),
- 'var' => 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
+ */
$allowedtags = array(
'a' => array(
- 'href' => array(), 'title' => array()
- ),
+ 'href' => array (),
+ 'title' => array ()),
'abbr' => array(
- 'title' => array()
- ),
+ 'title' => array ()),
'acronym' => array(
- 'title' => array()
- ),
+ 'title' => array ()),
'b' => array(),
'blockquote' => array(
- 'cite' => array()
- ),
+ 'cite' => array ()),
// 'br' => array(),
+ 'cite' => array (),
'code' => array(),
- // 'del' => array('datetime' => array()),
+ 'del' => array(
+ 'datetime' => array ()),
// 'dd' => array(),
// 'dl' => array(),
// 'dt' => array(),
- 'em' => array(),
- 'i' => array(),
+ 'em' => array (), 'i' => array (),
// 'ins' => array('datetime' => array(), 'cite' => array()),
// 'li' => array(),
// 'ol' => array(),
// 'p' => array(),
- // 'q' => array(),
+ 'q' => array(
+ 'cite' => array ()),
'strike' => array(),
'strong' => array(),
// 'sub' => array(),
);
}
-function wp_kses($string, $allowed_html, $allowed_protocols = array ('http', 'https', 'ftp', 'ftps', 'mailto', 'news', 'irc', 'gopher', 'nntp', 'feed', 'telnet'))
- ###############################################################################
- # 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.
- ###############################################################################
- {
+/**
+ * wp_kses() - 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', and finally 'telnet. 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 ('http', 'https', 'ftp', 'ftps', 'mailto', 'news', 'irc', 'gopher', 'nntp', 'feed', 'telnet')) {
$string = wp_kses_no_null($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, $allowed_protocols);
-} # function wp_kses
+}
-function wp_kses_hook($string, $allowed_html, $allowed_protocols)
-###############################################################################
-# You add any kses hooks here.
-###############################################################################
-{
+/**
+ * wp_kses_hook() - 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 recieve 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 $string;
-} # function wp_kses_hook
+}
-function wp_kses_version()
-###############################################################################
-# This function returns kses' version number.
-###############################################################################
-{
+/**
+ * wp_kses_version() - This function returns kses' version number.
+ *
+ * @since 1.0.0
+ *
+ * @return string Version Number
+ */
+function wp_kses_version() {
return '0.2.2';
-} # function wp_kses_version
-
-function wp_kses_split($string, $allowed_html, $allowed_protocols)
-###############################################################################
-# This function searches for HTML tags, no matter how malformed. It also
-# matches stray ">" characters.
-###############################################################################
-{
+}
+
+/**
+ * wp_kses_split() - 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, $allowed_protocols) {
return preg_replace('%((<!--.*?(-->|$))|(<[^>]*(>|$)|>))%e',
"wp_kses_split2('\\1', \$allowed_html, ".'$allowed_protocols)', $string);
-} # function wp_kses_split
-
-function wp_kses_split2($string, $allowed_html, $allowed_protocols)
-###############################################################################
-# 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.
-###############################################################################
-{
+}
+
+/**
+ * wp_kses_split2() - 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.
+ *
+ * @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($string, 0, 1) != '<')
# No attributes are allowed for closing elements
return wp_kses_attr("$slash$elem", $attrlist, $allowed_html, $allowed_protocols);
-} # function wp_kses_split2
-
-function wp_kses_attr($element, $attr, $allowed_html, $allowed_protocols)
-###############################################################################
-# This function 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.
-###############################################################################
-{
+}
+
+/**
+ * wp_kses_attr() - 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 = '';
$attr2 = preg_replace('/[<>]/', '', $attr2);
return "<$element$attr2$xhtml_slash>";
-} # function wp_kses_attr
-
-function wp_kses_hair($attr, $allowed_protocols)
-###############################################################################
-# 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.
-###############################################################################
-{
+}
+
+/**
+ * wp_kses_hair() - 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.
+ *
+ * @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;
$attrname = '';
} # switch
if ($working == 0) # not well formed, remove and try again
- {
+ {
$attr = wp_kses_html_error($attr);
$mode = 0;
}
$attrarr[] = array ('name' => $attrname, 'value' => '', 'whole' => $attrname, 'vless' => 'y');
return $attrarr;
-} # function wp_kses_hair
-
-function wp_kses_check_attr_val($value, $vless, $checkname, $checkvalue)
-###############################################################################
-# This function performs different checks for attribute values. The currently
-# implemented checks are "maxlen", "minlen", "maxval", "minval" and "valueless"
-# with even more checks to come soon.
-###############################################################################
-{
+}
+
+/**
+ * wp_kses_check_attr_val() - Performs different checks for attribute values.
+ *
+ * The currently implemented checks are "maxlen", "minlen", "maxval", "minval"
+ * and "valueless" with even more checks to come soon.
+ *
+ * @since 1.0.0
+ *
+ * @param string $value Attribute value
+ * @param string $vless Whether the value is valueless or not. Use 'y' or 'n'
+ * @param string $checkname What $checkvalue is checking for.
+ * @param mixed $checkvalue What constraint the value should pass
+ * @return bool Whether check passes (true) or not (false)
+ */
+function wp_kses_check_attr_val($value, $vless, $checkname, $checkvalue) {
$ok = true;
switch (strtolower($checkname)) {
} # switch
return $ok;
-} # function wp_kses_check_attr_val
-
-function wp_kses_bad_protocol($string, $allowed_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)".
-###############################################################################
-{
+}
+
+/**
+ * wp_kses_bad_protocol() - 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);
$string = preg_replace('/\xad+/', '', $string); # deals with Opera "feature"
$string2 = $string.'a';
} # while
return $string;
-} # function wp_kses_bad_protocol
+}
-function wp_kses_no_null($string)
-###############################################################################
-# This function removes any NULL characters in $string.
-###############################################################################
-{
+/**
+ * wp_kses_no_null() - 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 $string;
-} # function wp_kses_no_null
-
-function wp_kses_stripslashes($string)
-###############################################################################
-# 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.
-###############################################################################
-{
+}
+
+/**
+ * wp_kses_stripslashes() - 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 $string String to strip slashes
+ * @return string Fixed strings with quoted slashes
+ */
+function wp_kses_stripslashes($string) {
return preg_replace('%\\\\"%', '"', $string);
-} # function wp_kses_stripslashes
+}
-function wp_kses_array_lc($inarray)
-###############################################################################
-# This function goes through an array, and changes the keys to all lower case.
-###############################################################################
-{
+/**
+ * wp_kses_array_lc() - 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) {
$outarray = array ();
foreach ($inarray as $inkey => $inval) {
} # foreach $inarray
return $outarray;
-} # function wp_kses_array_lc
-
-function wp_kses_js_entities($string)
-###############################################################################
-# This function removes the HTML JavaScript entities found in early versions of
-# Netscape 4.
-###############################################################################
-{
+}
+
+/**
+ * wp_kses_js_entities() - 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*;?|$)%', '', $string);
-} # function wp_kses_js_entities
-
-function wp_kses_html_error($string)
-###############################################################################
-# This function deals with 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.
-###############################################################################
-{
+}
+
+/**
+ * wp_kses_html_error() - 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*/', '', $string);
-} # function wp_kses_html_error
-
-function wp_kses_bad_protocol_once($string, $allowed_protocols)
-###############################################################################
-# This function searches for URL protocols at the beginning of $string, while
-# handling whitespace and HTML entities.
-###############################################################################
-{
- return preg_replace('/^((&[^;]*;|[\sA-Za-z0-9])*)'.'(:|:|&#[Xx]3[Aa];)\s*/e', 'wp_kses_bad_protocol_once2("\\1", $allowed_protocols)', $string);
-} # function wp_kses_bad_protocol_once
-
-function wp_kses_bad_protocol_once2($string, $allowed_protocols)
-###############################################################################
-# This function processes URL protocols, checks to see if they're in the white-
-# list or not, and returns different data depending on the answer.
-###############################################################################
-{
+}
+
+/**
+ * wp_kses_bad_protocol_once() - 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) {
+ global $_kses_allowed_protocols;
+ $_kses_allowed_protocols = $allowed_protocols;
+
+ $string2 = preg_split('/:|:|:/i', $string, 2);
+ if ( isset($string2[1]) && !preg_match('%/\?%', $string2[0]) )
+ $string = wp_kses_bad_protocol_once2($string2[0], $allowed_protocols) . trim($string2[1]);
+ else
+ $string = preg_replace_callback('/^((&[^;]*;|[\sA-Za-z0-9])*)'.'(:|:|&#[Xx]3[Aa];)\s*/', create_function('$matches', 'global $_kses_allowed_protocols; return wp_kses_bad_protocol_once2($matches[1], $_kses_allowed_protocols);'), $string);
+
+ return $string;
+}
+
+/**
+ * wp_kses_bad_protocol_once2() - Callback for wp_kses_bad_protocol_once() regular expression.
+ *
+ * This function processes URL protocols, checks to see if they're in the
+ * white-list or not, and returns different data depending on the answer.
+ *
+ * @since 1.0.0
+ *
+ * @param string $string Content to check for bad protocols
+ * @param array $allowed_protocols Allowed protocols
+ * @return string Sanitized content
+ */
+function wp_kses_bad_protocol_once2($string, $allowed_protocols) {
$string2 = wp_kses_decode_entities($string);
$string2 = preg_replace('/\s/', '', $string2);
$string2 = wp_kses_no_null($string2);
return "$string2:";
else
return '';
-} # function wp_kses_bad_protocol_once2
-
-function wp_kses_normalize_entities($string)
-###############################################################################
-# This function normalizes HTML entities. It will convert "AT&T" to the correct
-# "AT&T", ":" to ":", "&#XYZZY;" to "&#XYZZY;" and so on.
-###############################################################################
-{
+}
+
+/**
+ * wp_kses_normalize_entities() - 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('/&([A-Za-z][A-Za-z0-9]{0,19});/', '&\\1;', $string);
- $string = preg_replace('/&#0*([0-9]{1,5});/e', 'wp_kses_normalize_entities2("\\1")', $string);
+ $string = preg_replace_callback('/&#0*([0-9]{1,5});/', create_function('$matches', 'return wp_kses_normalize_entities2($matches[1]);'), $string);
$string = preg_replace('/&#([Xx])0*(([0-9A-Fa-f]{2}){1,2});/', '&#\\1\\2;', $string);
return $string;
-} # function wp_kses_normalize_entities
-
-function wp_kses_normalize_entities2($i)
-###############################################################################
-# This function helps wp_kses_normalize_entities() to only accept 16 bit values
-# and nothing more for &#number; entities.
-###############################################################################
-{
+}
+
+/**
+ * wp_kses_normalize_entities2() - 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.
+ *
+ * @since 1.0.0
+ *
+ * @param int $i Number encoded entity
+ * @return string Correctly encoded entity
+ */
+function wp_kses_normalize_entities2($i) {
return (($i > 65535) ? "&#$i;" : "&#$i;");
-} # function wp_kses_normalize_entities2
-
-function wp_kses_decode_entities($string)
-###############################################################################
-# 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.
-###############################################################################
-{
+}
+
+/**
+ * wp_kses_decode_entities() - 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('/&#([0-9]+);/e', 'chr("\\1")', $string);
$string = preg_replace('/&#[Xx]([0-9A-Fa-f]+);/e', 'chr(hexdec("\\1"))', $string);
return $string;
-} # function wp_kses_decode_entities
+}
+/**
+ * wp_filter_kses() - Sanitize content with allowed HTML Kses rules
+ *
+ * @since 1.0.0
+ * @uses $allowedtags
+ *
+ * @param string $data Content to filter
+ * @return string Filtered content
+ */
function wp_filter_kses($data) {
global $allowedtags;
return addslashes( wp_kses(stripslashes( $data ), $allowedtags) );
}
+/**
+ * wp_filter_post_kses() - 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 $data Post content to filter
+ * @return string Filtered post content with allowed HTML tags and attributes intact.
+ */
function wp_filter_post_kses($data) {
global $allowedposttags;
return addslashes ( wp_kses(stripslashes( $data ), $allowedposttags) );
}
+/**
+ * wp_filter_nohtml_kses() - 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()) );
}
+/**
+ * kses_init_filters() - Adds all Kses input form content filters
+ *
+ * All hooks have default priority. The wp_filter_kses() fucntion
+ * 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('content_filtered_save_pre', 'wp_filter_post_kses');
}
+/**
+ * kses_remove_filters() - 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('content_filtered_save_pre', 'wp_filter_post_kses');
}
+/**
+ * kses_init() - 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();
add_action('init', 'kses_init');
add_action('set_current_user', 'kses_init');
-?>
+?>
\ No newline at end of file
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