<?php if (! defined('BASEPATH')) exit('No direct script access allowed');
/**
 * Codeigniter HTMLPurifier Helper
 *
 * Purify input using the HTMLPurifier standalone class.
 * Easily use multiple purifier configurations.
 *
 * @author     Tyler Brownell <tyler@bluefoxstudio.ca>
 * @copyright  Public Domain
 * @license    http://bluefoxstudio.ca/release.html
 *
 * @access  public
 * @param   string or array  $dirty_html  A string (or array of strings) to be cleaned.
 * @param   string           $config      The name of the configuration (switch case) to use.
 * @return  string or array               The cleaned string (or array of strings).
 */
if (! function_exists('html_purify'))
{
    function html_purify($dirty_html, $config = FALSE)
    {
        if (is_array($dirty_html))
        {
            foreach ($dirty_html as $key => $val)
            {
                $clean_html[$key] = html_purify($val, $config);
            }
        }
        else
        {
            $ci =& get_instance();
            switch ($config)
            {
                case 'comment':
                    $config = \HTMLPurifier_Config::createDefault();
                    $config->set('Core.Encoding', $ci->config->item('charset'));
                    $config->set('HTML.Doctype', 'XHTML 1.0 Strict');
                    $config->set('HTML.Trusted', true);
                    $config->set('HTML.SafeObject', true);
                    $config->set('Core.EscapeInvalidTags', true);
                    $config->set('HTML.Allowed', 'h1,h2,h3,h4,h5,h6,br,b,i,strong,em,a,pre,a[href|title],span,div,code,img,tt,div,ins,del,sup,sub,p,ol,ul,table,thead,tbody,tfoot,blockquote,dl,dt,dd,kbd,q,samp,var,hr,li,tr,td,th,s,strike,abbr[title]');
                    $config->set('HTML.AllowedAttributes', 'img.src,*.style,*.class, code.class,a.href,*.target');
                    $config->set('Attr.AllowedFrameTargets', ['_blank', '_self', '_target', '_top']);
                    $config->set('HTML.TargetBlank', true);
                    $config->set('AutoFormat.AutoParagraph', true);
                    $config->set('AutoFormat.Linkify', true);
                    $config->set('AutoFormat.RemoveEmpty', true);
                    break;
                case FALSE:
                    $config = \HTMLPurifier_Config::createDefault();
                    $config->set('Core.Encoding', $ci->config->item('charset'));
                    $config->set('Core.EscapeInvalidTags', true);
                    $config->set('HTML.Doctype', 'XHTML 1.0 Strict');
                    break;
                default:
                    show_error('The HTMLPurifier configuration labeled "' . htmlentities($config, ENT_QUOTES, 'UTF-8') . '" could not be found.');
            }
            $purifier = new \HTMLPurifier($config);
            $clean_html = $purifier->purify($dirty_html);
        }
        return $clean_html;
    }
}
/* End of htmlpurifier_helper.php */
/* Location: ./application/helpers/htmlpurifier_helper.php */