<?php
/**
* @version $Id: mosemailcloak.php,v 1.2 2005/07/22 03:30:14 eddieajau Exp $
* @package Mambo
* @copyright (C) 2000 - 2005 Miro International Pty Ltd
* @license http://www.gnu.org/copyleft/gpl.html GNU/GPL
* Mambo is Free Software
*/

/** ensure this file is being included by a parent file */
defined( '_VALID_MOS' ) or die( 'Direct Access to this location is not allowed.' );

$_MAMBOTS->registerFunction( 'onPrepareContent', 'botMosEmailCloak' );

/**
* Mambot that Cloaks all emails in content from spambots via javascript
*/
function botMosEmailCloak( $published, &$row, &$params, $page=0 ) {
	global $database;
	
	// load mambot params info
	$query = "SELECT id FROM #__mambots WHERE element = 'mosemailcloak' AND folder = 'content'";
	$database->setQuery( $query );
 	$id 		= $database->loadResult();
 	$mambot 	= new mosMambot( $database );
  	$mambot->load( $id );
 	$params 	=& new mosParameters( $mambot->params );
 	$mode		= $params->def( 'mode', 1 );
	
 	$search 	= "([[:alnum:]_\.\-]+)(\@[[:alnum:]\.\-]+\.+)([[:alnum:]\.\-]+)";
 	$search_text 	= "([[:alnum:][:space:][:punct:]][^<>]+)";
 
	// search for derivativs of link code <a href="mailto:email@amail.com">email@amail.com</a>
	// extra handling for inclusion of title and target attributes either side of href attribute
	$searchlink	= "(<a [[:alnum:] _\"\'=\@\.\-]*href=[\"\']mailto:". $search ."[\"\'][[:alnum:] _\"\'=\@\.\-]*>)". $search ."</a>";
	while( eregi( $searchlink, $row->text, $regs ) ) {
		$mail 		= $regs[2] . $regs[3] . $regs[4];
		$mail_text 	= $regs[5] . $regs[6] . $regs[7];
		
		// check to see if mail text is different from mail addy
		if ( $mail_text ) {			
			$replacement 	= mosHTML::emailCloaking( $mail, $mode, $mail_text );
		} else {
			$replacement 	= mosHTML::emailCloaking( $mail, $mode );
		}		
		
		// replace the found address with the js cloacked email
		$row->text 	= str_replace( $regs[0], $replacement, $row->text );		
	}
	
	// search for derivativs of link code <a href="mailto:email@amail.com">anytext</a>
	// extra handling for inclusion of title and target attributes either side of href attribute
	$searchlink	= "(<a [[:alnum:] _\"\'=\@\.\-]*href=[\"\']mailto:". $search ."[\"\'][[:alnum:] _\"\'=\@\.\-]*)>". $search_text ."</a>";
	while( eregi( $searchlink, $row->text, $regs ) ) {
		$mail 		= $regs[2] . $regs[3] . $regs[4];
		$mail_text 	= $regs[5];
		
		$replacement 	= mosHTML::emailCloaking( $mail, $mode, $mail_text, 0 );
		
		// replace the found address with the js cloacked email
		$row->text 	= str_replace( $regs[0], $replacement, $row->text );
	}

	// search for plain text email@amail.com
	while( eregi( $search, $row->text, $regs ) ) {
		$mail = $regs[0];

		$replacement = mosHTML::emailCloaking( $mail, $mode );
		
		// replace the found address with the js cloacked email
		$row->text = str_replace( $regs[0], $replacement, $row->text );
	}

}
?>