Current File : /home/admin/domains/happytokorea.com/public_html_bk/board/libraries/joomla/mail/helper.php
<?php
/**
* @version $Id: helper.php 14401 2010-01-26 14:10:00Z louis $
* @package Joomla.Framework
* @subpackage Mail
* @copyright Copyright (C) 2005 - 2010 Open Source Matters. All rights reserved.
* @license GNU/GPL, see LICENSE.php
* Joomla! is free software. This version may have been modified pursuant
* to the GNU General Public License, and as distributed it includes or
* is derivative of works licensed under the GNU General Public License or
* other free or open source software licenses.
* See COPYRIGHT.php for copyright notices and details.
*/
// Check to ensure this file is within the rest of the framework
defined('JPATH_BASE') or die();
/**
* E-Mail helper class, provides static methods to perform various tasks relevant
* to the Joomla e-mail routines.
*
* TODO: Test these methods as the regex work is first run and not tested thoroughly
*
* @static
* @package Joomla.Framework
* @subpackage Mail
* @since 1.5
*/
class JMailHelper
{
/**
* Cleans single line inputs.
*
* @static
* @param string $value String to be cleaned.
* @return string Cleaned string.
*/
function cleanLine( $value ) {
return trim( preg_replace( '/(%0A|%0D|\n+|\r+)/i', '', $value ) );
}
/**
* Cleans multi-line inputs.
*
* @static
* @param string $value Multi-line string to be cleaned.
* @return string Cleaned multi-line string.
*/
function cleanText( $value ) {
return trim( preg_replace( '/(%0A|%0D|\n+|\r+)(content-type:|to:|cc:|bcc:)/i', '', $value ) );
}
/**
* Cleans any injected headers from the E-Mail body.
*
* @static
* @param string $body E-Mail body string.
* @return string Cleaned E-Mail body string.
* @since 1.5
*/
function cleanBody($body) {
// Strip all E-Mail headers from a string
return preg_replace("/((From:|To:|Cc:|Bcc:|Subject:|Content-type:) ([\S]+))/", "", $body);
}
/**
* Cleans any injected headers from the subject string.
*
* @static
* @param string $subject E-Mail subject string.
* @return string Cleaned E-Mail subject string.
* @since 1.5
*/
function cleanSubject($subject) {
return preg_replace("/((From:|To:|Cc:|Bcc:|Content-type:) ([\S]+))/", "", $subject);
}
/**
* Verifies that an e-mail address does not have any extra headers injected into it.
*
* @static
* @param string $address E-Mail address.
* @return string|false E-Mail address string or boolean false if injected headers are present.
* @since 1.5
*/
function cleanAddress($address)
{
if (preg_match("[\s;,]", $address)) {
return false;
}
return $address;
}
/**
* Verifies that the string is in a proper e-mail address format.
*
* @static
* @param string $email String to be verified.
* @return boolean True if string has the correct format; false otherwise.
* @since 1.5
*/
function isEmailAddress($email)
{
// Split the email into a local and domain
$atIndex = strrpos($email, "@");
$domain = substr($email, $atIndex+1);
$local = substr($email, 0, $atIndex);
// Check Length of domain
$domainLen = strlen($domain);
if ($domainLen < 1 || $domainLen > 255) {
return false;
}
// Check the local address
// We're a bit more conservative about what constitutes a "legal" address, that is, A-Za-z0-9!#$%&\'*+/=?^_`{|}~-
$allowed = 'A-Za-z0-9!#&*+=?_-';
$regex = "/^[$allowed][\.$allowed]{0,63}$/";
if ( ! preg_match($regex, $local) ) {
return false;
}
// No problem if the domain looks like an IP address, ish
$regex = '/^[0-9\.]+$/';
if ( preg_match($regex, $domain)) {
return true;
}
// Check Lengths
$localLen = strlen($local);
if ($localLen < 1 || $localLen > 64) {
return false;
}
// Check the domain
$domain_array = explode(".", rtrim( $domain, '.' ));
$regex = '/^[A-Za-z0-9-]{0,63}$/';
foreach ($domain_array as $domain ) {
// Must be something
if ( ! $domain ) {
return false;
}
// Check for invalid characters
if ( ! preg_match($regex, $domain) ) {
return false;
}
// Check for a dash at the beginning of the domain
if ( strpos($domain, '-' ) === 0 ) {
return false;
}
// Check for a dash at the end of the domain
$length = strlen($domain) -1;
if ( strpos($domain, '-', $length ) === $length ) {
return false;
}
}
return true;
}
}