HTMLpurifier

ci_helper.php

<?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
 * @param   string
 * @return  string or array
 */
if (! function_exists('html_purify'))
{
	function html_purify($dirty_html, $config = FALSE)
	{
		require_once APPPATH . 'third_party/htmlpurifier-4.5.0-standalone/HTMLPurifier.standalone.php';

		if (is_array($dirty_html))
		{
			foreach ($dirty_html as $key => $val)
			{
				$clean_html[$key] = html_purify($val, $config);
			}
		}

		else
		{
			switch ($config)
			{
				case 'comment':
					$config = HTMLPurifier_Config::createDefault();
					$config->set('HTML.Allowed', 'p,a[href],abbr[title],b,blockquote[cite],i,h1,h2,h3,h4,h5,h6,cite,br,del,hr,ol,ul,li,strong,em');
					break;

				case 'shout':
					$config = HTMLPurifier_Config::createDefault();
					$config->set('HTML.Allowed', 'p,b,i,del,strong,em');
					break;

				case 'mod':
					$config = HTMLPurifier_Config::createDefault();
					$config->set('HTML.Allowed', 'p,a[href],abbr[title],b,blockquote[cite],i,h1,h2,h3,h4,h5,h6,cite,br,del,hr,ol,li,code,strong,em');
					break;

				case 'cleanup':
					$config = HTMLPurifier_Config::createDefault();
					break;

				case FALSE:
					$config = HTMLPurifier_Config::createDefault();
					$config->set('Core.Encoding', 'utf-8');
					$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 */