/**
* You can override this in a plugin.
*
+ * The wp_kses_allowed_html filter is more powerful and supplies context.
+ * CUSTOM_TAGS is not recommended and should be considered deprecated.
+ *
+ * @see wp_kses_allowed_html()
+ *
* @since 1.2.0
*/
if ( ! defined( 'CUSTOM_TAGS' ) )
define( 'CUSTOM_TAGS', false );
+// Ensure that these variables are added to the global namespace
+// (e.g. if using namespaces / autoload in the current PHP environment).
+global $allowedposttags, $allowedtags, $allowedentitynames;
+
if ( ! CUSTOM_TAGS ) {
/**
* Kses global for default allowable HTML tags.
$allowedposttags = array(
'address' => array(),
'a' => array(
- 'class' => true,
'href' => true,
- 'id' => true,
- 'title' => true,
'rel' => true,
'rev' => true,
'name' => true,
'target' => true,
),
- 'abbr' => array(
- 'class' => true,
- 'title' => true,
- ),
- 'acronym' => array(
- 'title' => true,
+ 'abbr' => array(),
+ 'acronym' => array(),
+ 'area' => array(
+ 'alt' => true,
+ 'coords' => true,
+ 'href' => true,
+ 'nohref' => true,
+ 'shape' => true,
+ 'target' => true,
),
'article' => array(
'align' => true,
- 'class' => true,
'dir' => true,
'lang' => true,
- 'style' => true,
'xml:lang' => true,
),
'aside' => array(
'align' => true,
- 'class' => true,
'dir' => true,
'lang' => true,
- 'style' => true,
'xml:lang' => true,
),
+ 'audio' => array(
+ 'autoplay' => true,
+ 'controls' => true,
+ 'loop' => true,
+ 'muted' => true,
+ 'preload' => true,
+ 'src' => true,
+ ),
'b' => array(),
'big' => array(),
'blockquote' => array(
- 'id' => true,
'cite' => true,
- 'class' => true,
'lang' => true,
'xml:lang' => true,
),
- 'br' => array (
- 'class' => true,
- ),
+ 'br' => array(),
'button' => array(
'disabled' => true,
'name' => true,
),
'caption' => array(
'align' => true,
- 'class' => true,
),
- 'cite' => array (
- 'class' => true,
+ 'cite' => array(
'dir' => true,
'lang' => true,
- 'title' => true,
- ),
- 'code' => array (
- 'style' => true,
),
+ 'code' => array(),
'col' => array(
'align' => true,
'char' => true,
'charoff' => true,
'span' => true,
'dir' => true,
- 'style' => true,
+ 'valign' => true,
+ 'width' => true,
+ ),
+ 'colgroup' => array(
+ 'align' => true,
+ 'char' => true,
+ 'charoff' => true,
+ 'span' => true,
'valign' => true,
'width' => true,
),
'datetime' => true,
),
'dd' => array(),
+ 'dfn' => array(),
'details' => array(
'align' => true,
- 'class' => true,
'dir' => true,
'lang' => true,
'open' => true,
- 'style' => true,
'xml:lang' => true,
),
'div' => array(
'align' => true,
- 'class' => true,
'dir' => true,
'lang' => true,
- 'style' => true,
'xml:lang' => true,
),
'dl' => array(),
'fieldset' => array(),
'figure' => array(
'align' => true,
- 'class' => true,
'dir' => true,
'lang' => true,
- 'style' => true,
'xml:lang' => true,
),
'figcaption' => array(
'align' => true,
- 'class' => true,
'dir' => true,
'lang' => true,
- 'style' => true,
'xml:lang' => true,
),
'font' => array(
),
'footer' => array(
'align' => true,
- 'class' => true,
'dir' => true,
'lang' => true,
- 'style' => true,
'xml:lang' => true,
),
'form' => array(
),
'h1' => array(
'align' => true,
- 'class' => true,
- 'id' => true,
- 'style' => true,
),
- 'h2' => array (
+ 'h2' => array(
'align' => true,
- 'class' => true,
- 'id' => true,
- 'style' => true,
),
- 'h3' => array (
+ 'h3' => array(
'align' => true,
- 'class' => true,
- 'id' => true,
- 'style' => true,
),
- 'h4' => array (
+ 'h4' => array(
'align' => true,
- 'class' => true,
- 'id' => true,
- 'style' => true,
),
- 'h5' => array (
+ 'h5' => array(
'align' => true,
- 'class' => true,
- 'id' => true,
- 'style' => true,
),
- 'h6' => array (
+ 'h6' => array(
'align' => true,
- 'class' => true,
- 'id' => true,
- 'style' => true,
),
'header' => array(
'align' => true,
- 'class' => true,
'dir' => true,
'lang' => true,
- 'style' => true,
'xml:lang' => true,
),
'hgroup' => array(
'align' => true,
- 'class' => true,
'dir' => true,
'lang' => true,
- 'style' => true,
'xml:lang' => true,
),
- 'hr' => array (
+ 'hr' => array(
'align' => true,
- 'class' => true,
'noshade' => true,
'size' => true,
'width' => true,
'alt' => true,
'align' => true,
'border' => true,
- 'class' => true,
'height' => true,
'hspace' => true,
'longdesc' => true,
'vspace' => true,
'src' => true,
- 'style' => true,
+ 'usemap' => true,
'width' => true,
),
'ins' => array(
'legend' => array(
'align' => true,
),
- 'li' => array (
+ 'li' => array(
'align' => true,
- 'class' => true,
+ 'value' => true,
+ ),
+ 'map' => array(
+ 'name' => true,
),
- 'menu' => array (
- 'class' => true,
- 'style' => true,
+ 'mark' => array(),
+ 'menu' => array(
'type' => true,
),
'nav' => array(
'align' => true,
- 'class' => true,
'dir' => true,
'lang' => true,
- 'style' => true,
'xml:lang' => true,
),
'p' => array(
- 'class' => true,
'align' => true,
'dir' => true,
'lang' => true,
- 'style' => true,
'xml:lang' => true,
),
'pre' => array(
- 'style' => true,
'width' => true,
),
'q' => array(
'cite' => true,
),
's' => array(),
- 'span' => array (
- 'class' => true,
+ 'samp' => array(),
+ 'span' => array(
'dir' => true,
'align' => true,
'lang' => true,
- 'style' => true,
- 'title' => true,
'xml:lang' => true,
),
'section' => array(
'align' => true,
- 'class' => true,
'dir' => true,
'lang' => true,
- 'style' => true,
'xml:lang' => true,
),
+ 'small' => array(),
'strike' => array(),
'strong' => array(),
'sub' => array(),
'summary' => array(
'align' => true,
- 'class' => true,
'dir' => true,
'lang' => true,
- 'style' => true,
'xml:lang' => true,
),
'sup' => array(),
'border' => true,
'cellpadding' => true,
'cellspacing' => true,
- 'class' => true,
'dir' => true,
- 'id' => true,
'rules' => true,
- 'style' => true,
'summary' => true,
'width' => true,
),
'bgcolor' => true,
'char' => true,
'charoff' => true,
- 'class' => true,
'colspan' => true,
'dir' => true,
'headers' => true,
'nowrap' => true,
'rowspan' => true,
'scope' => true,
- 'style' => true,
'valign' => true,
'width' => true,
),
'tfoot' => array(
'align' => true,
'char' => true,
- 'class' => true,
'charoff' => true,
'valign' => true,
),
'bgcolor' => true,
'char' => true,
'charoff' => true,
- 'class' => true,
'colspan' => true,
'headers' => true,
'height' => true,
'align' => true,
'char' => true,
'charoff' => true,
- 'class' => true,
'valign' => true,
),
'title' => array(),
'bgcolor' => true,
'char' => true,
'charoff' => true,
- 'class' => true,
- 'style' => true,
'valign' => true,
),
+ 'track' => array(
+ 'default' => true,
+ 'kind' => true,
+ 'label' => true,
+ 'src' => true,
+ 'srclang' => true,
+ ),
'tt' => array(),
'u' => array(),
- 'ul' => array (
- 'class' => true,
- 'style' => true,
+ 'ul' => array(
'type' => true,
),
- 'ol' => array (
- 'class' => true,
+ 'ol' => array(
'start' => true,
- 'style' => true,
'type' => true,
),
'var' => array(),
+ 'video' => array(
+ 'autoplay' => true,
+ 'controls' => true,
+ 'height' => true,
+ 'loop' => true,
+ 'muted' => true,
+ 'poster' => true,
+ 'preload' => true,
+ 'src' => true,
+ 'width' => true,
+ ),
);
/**
'blockquote' => array(
'cite' => true,
),
- // 'br' => array(),
'cite' => array(),
'code' => array(),
'del' => array(
'datetime' => true,
),
- // 'dd' => array(),
- // 'dl' => array(),
- // 'dt' => array(),
- 'em' => array (), 'i' => array (),
- // 'ins' => array('datetime' => array(), 'cite' => array()),
- // 'li' => array(),
- // 'ol' => array(),
- // 'p' => array(),
+ 'em' => array(),
+ 'i' => array(),
'q' => array(
'cite' => true,
),
'strike' => array(),
'strong' => array(),
- // 'sub' => array(),
- // 'sup' => array(),
- // 'u' => array(),
- // 'ul' => array(),
);
$allowedentitynames = array(
'nsub', 'sube', 'supe', 'oplus', 'otimes', 'perp',
'sdot', 'lceil', 'rceil', 'lfloor', 'rfloor', 'lang',
'rang', 'loz', 'spades', 'clubs', 'hearts', 'diams',
+ 'sup1', 'sup2', 'sup3', 'frac14', 'frac12', 'frac34',
+ 'there4',
);
+
+ $allowedposttags = array_map( '_wp_add_global_attributes', $allowedposttags );
+} else {
+ $allowedtags = wp_kses_array_lc( $allowedtags );
+ $allowedposttags = wp_kses_array_lc( $allowedposttags );
}
/**
* @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 ()) {
+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);
+ $string = wp_kses_hook($string, $allowed_html, $allowed_protocols); // WP changed the order of these funcs and added args to wp_kses_hook
+ return wp_kses_split($string, $allowed_html, $allowed_protocols);
+}
+
+/**
+ * Return a list of allowed tags and attributes for a given context.
+ *
+ * @since 3.5.0
+ *
+ * @param string $context The context for which to retrieve tags. Allowed values are
+ * post | strip | data | entities or the name of a field filter such as pre_user_description.
+ * @return array List of allowed tags and their allowed attributes.
+ */
+function wp_kses_allowed_html( $context = '' ) {
+ global $allowedposttags, $allowedtags, $allowedentitynames;
+
+ if ( is_array( $context ) ) {
+ /**
+ * Filter HTML elements allowed for a given context.
+ *
+ * @since 3.5.0
+ *
+ * @param string $tags Allowed tags, attributes, and/or entities.
+ * @param string $context Context to judge allowed tags by. Allowed values are 'post',
+ * 'data', 'strip', 'entities', 'explicit', or the name of a filter.
+ */
+ return apply_filters( 'wp_kses_allowed_html', $context, 'explicit' );
+ }
+
+ switch ( $context ) {
+ case 'post':
+ /** This filter is documented in wp-includes/kses.php */
+ return apply_filters( 'wp_kses_allowed_html', $allowedposttags, $context );
+ break;
+ case 'user_description':
+ case 'pre_user_description':
+ $tags = $allowedtags;
+ $tags['a']['rel'] = true;
+ /** This filter is documented in wp-includes/kses.php */
+ return apply_filters( 'wp_kses_allowed_html', $tags, $context );
+ break;
+ case 'strip':
+ /** This filter is documented in wp-includes/kses.php */
+ return apply_filters( 'wp_kses_allowed_html', array(), $context );
+ break;
+ case 'entities':
+ /** This filter is documented in wp-includes/kses.php */
+ return apply_filters( 'wp_kses_allowed_html', $allowedentitynames, $context);
+ break;
+ case 'data':
+ default:
+ /** This filter is documented in wp-includes/kses.php */
+ return apply_filters( 'wp_kses_allowed_html', $allowedtags, $context );
+ }
}
/**
* @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);
+function wp_kses_hook( $string, $allowed_html, $allowed_protocols ) {
+ /**
+ * Filter content to be run through kses.
+ *
+ * @since 2.3.0
+ *
+ * @param string $string Content to run through kses.
+ * @param array $allowed_html Allowed HTML elements.
+ * @param array $allowed_protocols Allowed protocol in links.
+ */
+ $string = apply_filters( 'pre_kses', $string, $allowed_html, $allowed_protocols );
return $string;
}
* @param array $allowed_protocols Allowed protocols to keep
* @return string Content with fixed HTML tags
*/
-function wp_kses_split($string, $allowed_html, $allowed_protocols) {
+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;
*
* @access private
* @since 1.0.0
- * @uses wp_kses_attr()
*
* @param string $string Content to filter
* @param array $allowed_html Allowed HTML elements
$elem = $matches[2];
$attrlist = $matches[3];
+ if ( ! is_array( $allowed_html ) )
+ $allowed_html = wp_kses_allowed_html( $allowed_html );
+
if ( ! isset($allowed_html[strtolower($elem)]) )
return '';
# They are using a not allowed HTML element
function wp_kses_attr($element, $attr, $allowed_html, $allowed_protocols) {
# Is there a closing XHTML slash at the end of the attributes?
+ if ( ! is_array( $allowed_html ) )
+ $allowed_html = wp_kses_allowed_html( $allowed_html );
+
$xhtml_slash = '';
if (preg_match('%\s*/\s*$%', $attr))
$xhtml_slash = ' /';
* @return array List of attributes after parsing
*/
function wp_kses_hair($attr, $allowed_protocols) {
- $attrarr = array ();
+ $attrarr = array();
$mode = 0;
$attrname = '';
$uris = array('xmlns', 'profile', 'href', 'src', 'cite', 'classid', 'codebase', 'data', 'usemap', 'longdesc', 'action');
switch ($mode) {
case 0 : # attribute name, href for instance
- if (preg_match('/^([-a-zA-Z]+)/', $attr, $match)) {
+ if ( preg_match('/^([-a-zA-Z:]+)/', $attr, $match ) ) {
$attrname = $match[1];
$working = $mode = 1;
- $attr = preg_replace('/^[-a-zA-Z]+/', '', $attr);
+ $attr = preg_replace( '/^[-a-zA-Z:]+/', '', $attr );
}
break;
}
/**
- * Removes any null characters in $string.
+ * Removes any invalid control characters in $string.
+ *
+ * Also removes any instance of the '\0' string.
*
* @since 1.0.0
*
* @return string
*/
function wp_kses_no_null($string) {
- $string = preg_replace('/\0+/', '', $string);
+ $string = preg_replace('/[\x00-\x08\x0B\x0C\x0E-\x1F]/', '', $string);
$string = preg_replace('/(\\\\0)+/', '', $string);
return $string;
/**
* 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_callback('/&([A-Za-z]{2,8});/', 'wp_kses_named_entities', $string);
+ $string = preg_replace_callback('/&([A-Za-z]{2,8}[0-9]{0,2});/', '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);
/**
* 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 {@see wp_kses_normalize_entities()} to only accept 16-bit
+ * values and nothing more for `&#number;` entities.
*
* @access private
* @since 1.0.0
/**
* 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.
+ * 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
*
* 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) );
+function wp_filter_kses( $data ) {
+ return addslashes( wp_kses( stripslashes( $data ), current_filter() ) );
}
/**
* 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 );
+function wp_kses_data( $data ) {
+ return wp_kses( $data , current_filter() );
}
/**
* 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) );
+ return addslashes ( wp_kses( stripslashes( $data ), '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 );
+ return wp_kses( $data , 'post' );
}
/**
* @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()) );
+function wp_filter_nohtml_kses( $data ) {
+ return addslashes ( wp_kses( stripslashes( $data ), 'strip' ) );
}
/**
* '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
* 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() {
$css = wp_kses_no_null($css);
$css = str_replace(array("\n","\r","\t"), '', $css);
- if ( preg_match( '%[\\(&=}]|/\*%', $css ) ) // remove any inline css containing \ ( & } = or comments
+ if ( preg_match( '%[\\\\(&=}]|/\*%', $css ) ) // remove any inline css containing \ ( & } = or comments
return '';
$css_array = explode( ';', trim( $css ) );
+
+ /**
+ * Filter list of allowed CSS attributes.
+ *
+ * @since 2.8.1
+ *
+ * @param array $attr List of allowed CSS attributes.
+ */
$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',
return $css;
}
+
+/**
+ * Helper function to add global attributes to a tag in the allowed html list.
+ *
+ * @since 3.5.0
+ * @access private
+ *
+ * @param array $value An array of attributes.
+ * @return array The array of attributes with global attributes added.
+ */
+function _wp_add_global_attributes( $value ) {
+ $global_attributes = array(
+ 'class' => true,
+ 'id' => true,
+ 'style' => true,
+ 'title' => true,
+ 'role' => true,
+ );
+
+ if ( true === $value )
+ $value = array();
+
+ if ( is_array( $value ) )
+ return array_merge( $value, $global_attributes );
+
+ return $value;
+}
scripts.mit.edu / autoinstalls / wordpress.git / blobdiff