[WP] KSES Allowed Post Tags

allowed-post-tags.php

<?php
/**
 * Found at {@link https://wp-mix.com/allowed-html-tags-wp_kses}.
 *
 * Note that these HTML tags and attributes go beyond those provided
 * by wp_kses_post(). So if you’re looking to allow only the same tags
 * that are allowed in WP Posts, just use that instead of the custom array.
 *
 * @author Jeff Staff
 * @link https://perishablepress.com
 *
 * @since 1.0.0 Initial commit.
 * @since 1.0.1 SVG tags and attributes support added.
 */

global $allowedposttags;

/**
 * Standard HTML tags and attributes.
 *
 * @since 1.0.0
 */
$allowed_atts = array(
	'align'      => array(),
	'class'      => array(),
	'type'       => array(),
	'id'         => array(),
	'dir'        => array(),
	'lang'       => array(),
	'style'      => array(),
	'xml:lang'   => array(),
	'src'        => array(),
	'alt'        => array(),
	'href'       => array(),
	'rel'        => array(),
	'rev'        => array(),
	'target'     => array(),
	'novalidate' => array(),
	'type'       => array(),
	'value'      => array(),
	'name'       => array(),
	'tabindex'   => array(),
	'action'     => array(),
	'method'     => array(),
	'for'        => array(),
	'width'      => array(),
	'height'     => array(),
	'data'       => array(),
	'title'      => array(),
);
// Allow HTML tags to have the above attributes.
$allowedposttags['form']     = $allowed_atts;
$allowedposttags['label']    = $allowed_atts;
$allowedposttags['input']    = $allowed_atts;
$allowedposttags['textarea'] = $allowed_atts;
$allowedposttags['iframe']   = $allowed_atts;
$allowedposttags['script']   = $allowed_atts;
$allowedposttags['style']    = $allowed_atts;
$allowedposttags['strong']   = $allowed_atts;
$allowedposttags['small']    = $allowed_atts;
$allowedposttags['table']    = $allowed_atts;
$allowedposttags['span']     = $allowed_atts;
$allowedposttags['abbr']     = $allowed_atts;
$allowedposttags['code']     = $allowed_atts;
$allowedposttags['pre']      = $allowed_atts;
$allowedposttags['div']      = $allowed_atts;
$allowedposttags['img']      = $allowed_atts;
$allowedposttags['h1']       = $allowed_atts;
$allowedposttags['h2']       = $allowed_atts;
$allowedposttags['h3']       = $allowed_atts;
$allowedposttags['h4']       = $allowed_atts;
$allowedposttags['h5']       = $allowed_atts;
$allowedposttags['h6']       = $allowed_atts;
$allowedposttags['ol']       = $allowed_atts;
$allowedposttags['ul']       = $allowed_atts;
$allowedposttags['li']       = $allowed_atts;
$allowedposttags['em']       = $allowed_atts;
$allowedposttags['hr']       = $allowed_atts;
$allowedposttags['br']       = $allowed_atts;
$allowedposttags['tr']       = $allowed_atts;
$allowedposttags['td']       = $allowed_atts;
$allowedposttags['p']        = $allowed_atts;
$allowedposttags['a']        = $allowed_atts;
$allowedposttags['b']        = $allowed_atts;
$allowedposttags['i']        = $allowed_atts;

/**
 * SVG tags and attributes.
 *
 * @since 1.0.1
 */
$svg_atts = array(
    'alignment-baseline'           => array(),
    'aria-hidden'                  => array(),
    'baseline-shift'               => array(),
    'clip'                         => array(),
    'clip-path'                    => array(),
    'clip-rule'                    => array(),
    'color'                        => array(),
    'color-interpolation'          => array(),
    'color-interpolation-filters'  => array(),
    'color-profile'                => array(),
    'color-rendering'              => array(),
    'cursor'                       => array(),
    'd'                            => array(),
    'direction'                    => array(),
    'display'                      => array(),
    'dominant-baseline'            => array(),
    'enable-background'            => array(),
    'focusable'                    => array(),
    'fill'                         => array(),
    'fill-opacity'                 => array(),
    'fill-rule'                    => array(),
    'filter'                       => array(),
    'flood-color'                  => array(),
    'flood-opacity'                => array(),
    'font-family'                  => array(),
    'font-size'                    => array(),
    'font-size-adjust'             => array(),
    'font-stretch'                 => array(),
    'font-style'                   => array(),
    'font-variant'                 => array(),
    'font-weight'                  => array(),
    'glyph-orientation-horizontal' => array(),
    'glyph-orientation-vertical'   => array(),
    'image-rendering'              => array(),
    'kerning'                      => array(),
    'letter-spacing'               => array(),
    'lighting-color'               => array(),
    'marker-end'                   => array(),
    'marker-mid'                   => array(),
    'marker-start'                 => array(),
    'mask'                         => array(),
    'opacity'                      => array(),
    'overflow'                     => array(),
    'pointer-events'               => array(),
    'role'                         => array(),
    'shape-rendering'              => array(),
    'solid-color'                  => array(),
    'solid-opacity'                => array(),
    'stop-color'                   => array(),
    'stop-opacity'                 => array(),
    'stroke'                       => array(),
    'stroke-dasharray'             => array(),
    'stroke-dashoffset'            => array(),
    'stroke-linecap'               => array(),
    'stroke-linejoin'              => array(),
    'stroke-miterlimit'            => array(),
    'stroke-opacity'               => array(),
    'stroke-width'                 => array(),
    'text-anchor'                  => array(),
    'text-decoration'              => array(),
    'text-rendering'               => array(),
    'transform'                    => array(),
    'unicode-bidi'                 => array(),
    'vector-effect'                => array(),
    'viewbox'                      => array(),
    'visibility'                   => array(),
    'word-spacing'                 => array(),
    'writing-mode'                 => array(),
    'xmlns'                        => array(),
);
// Allow SVG tag to have the above attributes.
$allowedposttags['svg']    = $svg_attrs;
$allowedposttags['symbol'] = $svg_attrs;
$allowedposttags['g']      = $svg_attrs;
$allowedposttags['path']   = $svg_attrs;
$allowedposttags['use']    = array(
    'href'       => true,
    'xlink:href' => true,
);