85 lines
1.8 KiB
PHP
85 lines
1.8 KiB
PHP
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<?php
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/**
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* @package Joomla.Site
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* @subpackage com_mailto
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*
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* @copyright Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
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* @license GNU General Public License version 2 or later; see LICENSE.txt
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*/
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defined('_JEXEC') or die;
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/**
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* @package Joomla.Site
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* @subpackage com_mailto
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*/
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abstract class MailtoHelper
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{
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/**
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* Adds a URL to the mailto system and returns the hash
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*
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* @param string url
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* @return URL hash
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*/
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public static function addLink($url)
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{
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$hash = sha1($url);
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self::cleanHashes();
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$session = JFactory::getSession();
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$mailto_links = $session->get('com_mailto.links', array());
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if (!isset($mailto_links[$hash]))
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{
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$mailto_links[$hash] = new stdClass;
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}
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$mailto_links[$hash]->link = $url;
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$mailto_links[$hash]->expiry = time();
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$session->set('com_mailto.links', $mailto_links);
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return $hash;
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}
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/**
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* Checks if a URL is a Flash file
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*
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* @param string
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* @return URL
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*/
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public static function validateHash($hash)
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{
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$retval = false;
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$session = JFactory::getSession();
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self::cleanHashes();
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$mailto_links = $session->get('com_mailto.links', array());
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if (isset($mailto_links[$hash]))
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{
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$retval = $mailto_links[$hash]->link;
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}
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return $retval;
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}
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/**
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* Cleans out old hashes
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*
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* @since 1.6.1
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*/
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public static function cleanHashes($lifetime = 1440)
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{
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// flag for if we've cleaned on this cycle
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static $cleaned = false;
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if (!$cleaned)
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{
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$past = time() - $lifetime;
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$session = JFactory::getSession();
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$mailto_links = $session->get('com_mailto.links', array());
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foreach ($mailto_links as $index => $link)
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{
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if ($link->expiry < $past)
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{
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unset($mailto_links[$index]);
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}
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}
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$session->set('com_mailto.links', $mailto_links);
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$cleaned = true;
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}
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}
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}
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