*/
/**
- * 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.
+ * 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 (!CUSTOM_TAGS) {
/**
- * Kses global for default allowable HTML tags
+ * Kses global for default allowable HTML tags.
+ *
+ * Can be override by using CUSTOM_TAGS constant.
*
- * Can be override by using CUSTOM_TAGS constant
* @global array $allowedposttags
* @since 2.0.0
*/
'target' => array ()),
'h1' => array(
'align' => array (),
- 'class' => array ()),
- 'h2' => array(
+ 'class' => array (),
+ 'id' => array (),
+ 'style' => array ()),
+ 'h2' => array (
'align' => array (),
- 'class' => array ()),
- 'h3' => array(
+ 'class' => array (),
+ 'id' => array (),
+ 'style' => array ()),
+ 'h3' => array (
'align' => array (),
- 'class' => array ()),
- 'h4' => array(
+ 'class' => array (),
+ 'id' => array (),
+ 'style' => array ()),
+ 'h4' => array (
'align' => array (),
- 'class' => array ()),
- 'h5' => array(
+ 'class' => array (),
+ 'id' => array (),
+ 'style' => array ()),
+ 'h5' => array (
'align' => array (),
- 'class' => array ()),
- 'h6' => array(
+ 'class' => array (),
+ 'id' => array (),
+ 'style' => array ()),
+ 'h6' => array (
'align' => array (),
- 'class' => array ()),
- 'hr' => array(
+ 'class' => array (),
+ 'id' => array (),
+ 'style' => array ()),
+ 'hr' => array (
'align' => array (),
'class' => array (),
'noshade' => array (),
'class' => array (),
'dir' => array (),
'align' => array (),
+ 'lang' => array (),
'style' => array (),
- 'title' => array ()),
+ 'title' => array (),
+ 'xml:lang' => array()),
'strike' => array(),
'strong' => array(),
'sub' => array(),
'u' => array(),
'ul' => array (
'class' => array (),
- 'style' => array (),
+ 'style' => array (),
'type' => array ()),
'ol' => array (
'class' => array (),
'start' => array (),
- 'style' => array (),
+ 'style' => array (),
'type' => array ()),
'var' => array ());
+
/**
- * Kses allowed HTML elements
+ * Kses allowed HTML elements.
*
* @global array $allowedtags
* @since 1.0.0
}
/**
- * wp_kses() - Filters content and keeps only allowable HTML elements.
+ * 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.
+ * This function makes sure that only the allowed HTML element names, attribute
+ * names and attribute values plus only sane HTML entities will occur in
+ * $string. You have to remove any slashes from PHP's magic quotes before you
+ * call this function.
*
- * The default allowed protocols are 'http', 'https', 'ftp', 'mailto',
- * 'news', 'irc', 'gopher', 'nntp', 'feed', and finally 'telnet. This
- * covers all common link protocols, except for 'javascript' which
- * should not be allowed for untrusted users.
+ * The default allowed protocols are 'http', 'https', 'ftp', 'mailto', 'news',
+ * 'irc', 'gopher', 'nntp', 'feed', and finally 'telnet. This covers all common
+ * link protocols, except for 'javascript' which should not be allowed for
+ * untrusted users.
*
* @since 1.0.0
*
}
/**
- * wp_kses_hook() - You add any kses hooks here.
+ * You add any kses hooks here.
*
- * There is currently only one kses WordPress hook and it is
- * called here. All parameters are passed to the hooks and
- * expected to recieve a string.
+ * There is currently only one kses WordPress hook and it is called here. All
+ * parameters are passed to the hooks and expected to recieve a string.
*
* @since 1.0.0
*
}
/**
- * wp_kses_version() - This function returns kses' version number.
+ * This function returns kses' version number.
*
* @since 1.0.0
*
- * @return string Version Number
+ * @return string KSES Version Number
*/
function wp_kses_version() {
return '0.2.2';
}
/**
- * wp_kses_split() - Searches for HTML tags, no matter how malformed
+ * Searches for HTML tags, no matter how malformed.
*
* It also matches stray ">" characters.
*
* @return string Content with fixed HTML tags
*/
function wp_kses_split($string, $allowed_html, $allowed_protocols) {
- return preg_replace('%((<!--.*?(-->|$))|(<[^>]*(>|$)|>))%e',
- "wp_kses_split2('\\1', \$allowed_html, ".'$allowed_protocols)', $string);
+ global $pass_allowed_html, $pass_allowed_protocols;
+ $pass_allowed_html = $allowed_html;
+ $pass_allowed_protocols = $allowed_protocols;
+ return preg_replace_callback('%((<!--.*?(-->|$))|(<[^>]*(>|$)|>))%',
+ create_function('$match', 'global $pass_allowed_html, $pass_allowed_protocols; return wp_kses_split2($match[1], $pass_allowed_html, $pass_allowed_protocols);'), $string);
}
/**
- * wp_kses_split2() - Callback for wp_kses_split for fixing malformed HTML tags
+ * 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.
+ * 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.
+ * 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()
*
$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
}
/**
- * wp_kses_attr() - Removes all attributes, if none are allowed for this element
+ * 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.
+ * 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
*
break;
}
+ if ( $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)
}
/**
- * wp_kses_hair() - Builds an attribute list from string containing attributes.
+ * 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.
+ * 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
*
$attrarr = array ();
$mode = 0;
$attrname = '';
+ $uris = array('xmlns', 'profile', 'href', 'src', 'cite', 'classid', 'codebase', 'data', 'usemap', 'longdesc', 'action');
# Loop through the whole attribute list
{
$working = 1;
$mode = 0;
- $attrarr[] = array ('name' => $attrname, 'value' => '', 'whole' => $attrname, 'vless' => 'y');
+ if(FALSE === array_key_exists($attrname, $attrarr)) {
+ $attrarr[$attrname] = array ('name' => $attrname, 'value' => '', 'whole' => $attrname, 'vless' => 'y');
+ }
$attr = preg_replace('/^\s+/', '', $attr);
}
if (preg_match('/^"([^"]*)"(\s+|$)/', $attr, $match))
# "value"
{
- $thisval = wp_kses_bad_protocol($match[1], $allowed_protocols);
+ $thisval = $match[1];
+ if ( in_array($attrname, $uris) )
+ $thisval = wp_kses_bad_protocol($thisval, $allowed_protocols);
- $attrarr[] = array ('name' => $attrname, 'value' => $thisval, 'whole' => "$attrname=\"$thisval\"", 'vless' => 'n');
+ if(FALSE === array_key_exists($attrname, $attrarr)) {
+ $attrarr[$attrname] = array ('name' => $attrname, 'value' => $thisval, 'whole' => "$attrname=\"$thisval\"", 'vless' => 'n');
+ }
$working = 1;
$mode = 0;
$attr = preg_replace('/^"[^"]*"(\s+|$)/', '', $attr);
if (preg_match("/^'([^']*)'(\s+|$)/", $attr, $match))
# 'value'
{
- $thisval = wp_kses_bad_protocol($match[1], $allowed_protocols);
+ $thisval = $match[1];
+ if ( in_array($attrname, $uris) )
+ $thisval = wp_kses_bad_protocol($thisval, $allowed_protocols);
- $attrarr[] = array ('name' => $attrname, 'value' => $thisval, 'whole' => "$attrname='$thisval'", 'vless' => 'n');
+ if(FALSE === array_key_exists($attrname, $attrarr)) {
+ $attrarr[$attrname] = array ('name' => $attrname, 'value' => $thisval, 'whole' => "$attrname='$thisval'", 'vless' => 'n');
+ }
$working = 1;
$mode = 0;
$attr = preg_replace("/^'[^']*'(\s+|$)/", '', $attr);
if (preg_match("%^([^\s\"']+)(\s+|$)%", $attr, $match))
# value
{
- $thisval = wp_kses_bad_protocol($match[1], $allowed_protocols);
+ $thisval = $match[1];
+ if ( in_array($attrname, $uris) )
+ $thisval = wp_kses_bad_protocol($thisval, $allowed_protocols);
- $attrarr[] = array ('name' => $attrname, 'value' => $thisval, 'whole' => "$attrname=\"$thisval\"", 'vless' => 'n');
+ if(FALSE === array_key_exists($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;
$mode = 0;
}
} # while
- if ($mode == 1)
+ if ($mode == 1 && FALSE === array_key_exists($attrname, $attrarr))
# special case, for when the attribute list ends with a valueless
# attribute like "selected"
- $attrarr[] = array ('name' => $attrname, 'value' => '', 'whole' => $attrname, 'vless' => 'y');
+ $attrarr[$attrname] = array ('name' => $attrname, 'value' => '', 'whole' => $attrname, 'vless' => 'y');
return $attrarr;
}
/**
- * wp_kses_check_attr_val() - Performs different checks for attribute values.
+ * 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_bad_protocol() - Sanitize string from bad protocols
+ * 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)".
+ * 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
*
}
/**
- * wp_kses_no_null() - Removes any NULL characters in $string.
+ * Removes any NULL characters in $string.
*
* @since 1.0.0
*
}
/**
- * wp_kses_stripslashes() - Strips slashes from in front of quotes
+ * Strips slashes from in front of quotes.
*
- * This function changes the character sequence \" to just "
- * It leaves all other slashes alone. It's really weird, but the
- * quoting from preg_replace(//e) seems to require this.
+ * This function changes the character sequence \" to just ". It leaves all
+ * other slashes alone. It's really weird, but the quoting from
+ * preg_replace(//e) seems to require this.
*
* @since 1.0.0
*
}
/**
- * wp_kses_array_lc() - Goes through an array and changes the keys to all lower case.
+ * Goes through an array and changes the keys to all lower case.
*
* @since 1.0.0
*
function wp_kses_array_lc($inarray) {
$outarray = array ();
- foreach ($inarray as $inkey => $inval) {
+ foreach ( (array) $inarray as $inkey => $inval) {
$outkey = strtolower($inkey);
$outarray[$outkey] = array ();
- foreach ($inval as $inkey2 => $inval2) {
+ foreach ( (array) $inval as $inkey2 => $inval2) {
$outkey2 = strtolower($inkey2);
$outarray[$outkey][$outkey2] = $inval2;
} # foreach $inval
}
/**
- * wp_kses_js_entities() - Removes the HTML JavaScript entities found in early versions of Netscape 4.
+ * Removes the HTML JavaScript entities found in early versions of Netscape 4.
*
* @since 1.0.0
*
}
/**
- * wp_kses_html_error() - Handles parsing errors in wp_kses_hair()
+ * 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.
+ * 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
*
}
/**
- * wp_kses_bad_protocol_once() - Sanitizes content from bad protocols and other characters
+ * 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.
+ * This function searches for URL protocols at the beginning of $string, while
+ * handling whitespace and HTML entities.
*
* @since 1.0.0
*
$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]);
+ $string = wp_kses_bad_protocol_once2($string2[0]) . 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);
+ $string = preg_replace_callback('/^((&[^;]*;|[\sA-Za-z0-9])*)'.'(:|:|&#[Xx]3[Aa];)\s*/', 'wp_kses_bad_protocol_once2', $string);
return $string;
}
/**
- * wp_kses_bad_protocol_once2() - Callback for wp_kses_bad_protocol_once() regular expression.
+ * 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.
*
+ * @access private
* @since 1.0.0
*
- * @param string $string Content to check for bad protocols
- * @param array $allowed_protocols Allowed protocols
+ * @param mixed $matches string or preg_replace_callback() matches array to check for bad protocols
* @return string Sanitized content
*/
-function wp_kses_bad_protocol_once2($string, $allowed_protocols) {
+function wp_kses_bad_protocol_once2($matches) {
+ global $_kses_allowed_protocols;
+
+ if ( is_array($matches) ) {
+ if ( ! isset($matches[1]) || empty($matches[1]) )
+ return '';
+
+ $string = $matches[1];
+ } else {
+ $string = $matches;
+ }
+
$string2 = wp_kses_decode_entities($string);
$string2 = preg_replace('/\s/', '', $string2);
$string2 = wp_kses_no_null($string2);
$string2 = strtolower($string2);
$allowed = false;
- foreach ($allowed_protocols as $one_protocol)
+ foreach ( (array) $_kses_allowed_protocols as $one_protocol)
if (strtolower($one_protocol) == $string2) {
$allowed = true;
break;
}
/**
- * wp_kses_normalize_entities() - Converts and fixes HTML 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.
+ * 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
*
# Change back the allowed entities in our entity whitelist
$string = preg_replace('/&([A-Za-z][A-Za-z0-9]{0,19});/', '&\\1;', $string);
- $string = preg_replace_callback('/&#0*([0-9]{1,5});/', create_function('$matches', 'return wp_kses_normalize_entities2($matches[1]);'), $string);
- $string = preg_replace('/&#([Xx])0*(([0-9A-Fa-f]{2}){1,2});/', '&#\\1\\2;', $string);
+ $string = preg_replace_callback('/&#0*([0-9]{1,5});/', 'wp_kses_normalize_entities2', $string);
+ $string = preg_replace_callback('/&#([Xx])0*(([0-9A-Fa-f]{2}){1,2});/', 'wp_kses_normalize_entities3', $string);
return $string;
}
/**
- * wp_kses_normalize_entities2() - Callback for wp_kses_normalize_entities() regular expression
+ * 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.
+ * 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 int $i Number encoded entity
+ * @param array $matches preg_replace_callback() matches array
* @return string Correctly encoded entity
*/
-function wp_kses_normalize_entities2($i) {
- return (($i > 65535) ? "&#$i;" : "&#$i;");
+function wp_kses_normalize_entities2($matches) {
+ if ( ! isset($matches[1]) || empty($matches[1]) )
+ return '';
+
+ $i = $matches[1];
+ return ( ( ! valid_unicode($i) ) || ($i > 65535) ? "&#$i;" : "&#$i;" );
}
/**
- * wp_kses_decode_entities() - Convert all entities to their character counterparts.
+ * Callback for wp_kses_normalize_entities() for regular expression.
*
- * 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.
+ * 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 ( ! isset($matches[2]) || empty($matches[2]) )
+ return '';
+
+ $hexchars = $matches[2];
+ return ( ( ! valid_unicode(hexdec($hexchars)) ) ? "&#x$hexchars;" : "&#x$hexchars;" );
+}
+
+/**
+ * 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 && $i <= 0x10ffff) );
+}
+
+/**
+ * Convert all entities to their character counterparts.
+ *
+ * This function decodes numeric HTML entities (A and A). It doesn't do
+ * anything with other entities like ä, but we don't need them in the URL
+ * protocol whitelisting system anyway.
*
* @since 1.0.0
*
* @return string Content after decoded entities
*/
function wp_kses_decode_entities($string) {
- $string = preg_replace('/&#([0-9]+);/e', 'chr("\\1")', $string);
- $string = preg_replace('/&#[Xx]([0-9A-Fa-f]+);/e', 'chr(hexdec("\\1"))', $string);
+ $string = preg_replace_callback('/&#([0-9]+);/', create_function('$match', 'return chr($match[1]);'), $string);
+ $string = preg_replace_callback('/&#[Xx]([0-9A-Fa-f]+);/', create_function('$match', 'return chr(hexdec($match[1]));'), $string);
return $string;
}
/**
- * wp_filter_kses() - Sanitize content with allowed HTML Kses rules
+ * Sanitize content with allowed HTML Kses rules.
*
* @since 1.0.0
* @uses $allowedtags
}
/**
- * wp_filter_post_kses() - Sanitize content for allowed HTML tags for post content
+ * 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.
+ * Post content refers to the page contents of the 'post' type and not $_POST
+ * data from forms.
*
* @since 2.0.0
* @uses $allowedposttags
}
/**
- * wp_filter_nohtml_kses() - Strips all of the HTML in the content
+ * Strips all of the HTML in the content.
*
* @since 2.1.0
*
}
/**
- * kses_init_filters() - Adds all Kses input form content 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.
+ * 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.
}
/**
- * kses_remove_filters() - Removes all Kses input form content 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.
+ * 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).
+ * 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
*/
}
/**
- * kses_init() - Sets up most of the Kses filters for input form content
+ * 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.
+ * '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.
+ * 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
add_action('init', 'kses_init');
add_action('set_current_user', 'kses_init');
-?>
\ No newline at end of file
+
+function safecss_filter_attr( $css, $deprecated = '' ) {
+ $css = wp_kses_no_null($css);
+ $css = str_replace(array("\n","\r","\t"), '', $css);
+
+ if ( preg_match( '%[\\(&]|/\*%', $css ) ) // remove any inline css containing \ ( & or comments
+ return '';
+
+ $css_array = split( ';', 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;
+}
scripts.mit.edu / autoinstalls / wordpress.git / blobdiff