Your IP : 216.73.216.247
<?php
/**
* @package AdminTools
* @copyright Copyright (c)2010-2015 Nicholas K. Dionysopoulos
* @license GNU General Public License version 3, or later
* @version $Id$
*/
// Protect from unauthorized access
defined('_JEXEC') or die;
JLoader::import('joomla.application.component.model');
/**
* Emergency Off-Line Mode
*
* @author nicholas
*/
class AdmintoolsModelEom extends F0FModel
{
/**
* Returns the current client's IP
*
* @return string
*/
public function getMyIP()
{
static $ip = null;
if (empty($ip))
{
$ip = htmlspecialchars($_SERVER['REMOTE_ADDR']);
if ((strpos($ip, '::') === 0) && (strstr($ip, '.') !== false))
{
$ip = substr($ip, strrpos($ip, ':') + 1);
}
}
return $ip;
}
/**
* Checks if the Emergency Off-Line Mode .htaccess backup exists
*
* @return bool
*/
public function isOffline()
{
JLoader::import('joomla.filesystem.file');
$backupFile = JPATH_SITE . DIRECTORY_SEPARATOR . '.htaccess.eom';
if (JFile::exists($backupFile))
{
$filedata = JFile::read($backupFile);
$lines = explode("\n", $filedata);
if (!empty($lines))
{
if (trim($lines[0]) == '## EOMBAK - Do not remove this line or this file')
{
return true;
}
}
}
return false;
}
/**
* Tries to put the site in Emergency Off-Line Mode, backing up the original .htaccess file
*
* @return bool True on success
*/
public function putOffline()
{
JLoader::import('joomla.filesystem.file');
// If the backup doesn't exist, try to create it
if (!$this->isOffline())
{
$backupFile = JPATH_SITE . DIRECTORY_SEPARATOR . '.htaccess.eom';
$sourceFile = JPATH_SITE . DIRECTORY_SEPARATOR . '.htaccess';
if (JFile::exists($sourceFile))
{
$sourceData = JFile::read($sourceFile);
$sourceData = "## EOMBAK - Do not remove this line or this file\n" . $sourceData;
$result = JFile::write($backupFile, $sourceData);
if (!$result)
{
return false;
}
JFile::delete($sourceFile);
}
else
{
$sourceData = "## EOMBAK - Do not remove this line or this file\n";
$result = JFile::write($backupFile, $sourceData);
if (!$result)
{
return false;
}
}
}
// Create the offline.html file, if it doesn't exist. If you can't create it, don't worry too much.
$offlineFile = JPATH_SITE . DIRECTORY_SEPARATOR . 'offline.html';
if (!JFile::exists($offlineFile))
{
$jreg = JFactory::getConfig();
$message = JText::_($jreg->get('offline_message'));
$app = JFactory::getApplication();
$sitename = $app->getCfg('sitename');
$fileContents = <<<ENDHTML
<html>
<head>
<title></title>
</head>
<body style="margin:10em;">
<div style="border: thin solid #333; border-radius: 5px; width: 70%; margin: 0 15%; padding: 2em; background-color: #e0e0e0; font-size: 14pt;">
<img src="images/joomla_logo_black.jpg" align="middle" />
<h1>
$sitename
</h1>
<p>
$message
</p>
</div>
</body>
</html>
ENDHTML;
JFile::write($offlineFile, $fileContents);
}
$htaccess = $this->getHtaccess();
return JFile::write(JPATH_SITE . DIRECTORY_SEPARATOR . '.htaccess', $htaccess);
}
/**
* Puts the site back on-line
*
* @return bool True on success
*/
public function putOnline()
{
JLoader::import('joomla.filesystem.file');
if (!$this->isOffline())
{
return false;
}
$result = JFile::delete(JPATH_SITE . DIRECTORY_SEPARATOR . '.htaccess');
if (JFile::exists(JPATH_SITE . DIRECTORY_SEPARATOR . '.htaccess.eom'))
{
$filedata = JFile::read(JPATH_SITE . DIRECTORY_SEPARATOR . '.htaccess.eom');
$filedata = explode("\n", $filedata);
$newLines = array();
$lookFor = "## EOMBAK - Do not remove this line or this file";
foreach ($filedata as $line)
{
if (trim($line) == $lookFor)
{
continue;
}
$newLines[] = $line;
}
$filedata = implode("\n", $newLines);
$result = JFile::write(JPATH_SITE . DIRECTORY_SEPARATOR . '.htaccess', $filedata);
}
if ($result)
{
JFile::delete(JPATH_SITE . DIRECTORY_SEPARATOR . '.htaccess.eom');
}
return $result;
}
/**
* Returns the contents of the stealthy .htaccess file
*
* @return string
*/
public function getHtaccess()
{
JLoader::import('joomla.filesystem.file');
// Sniff the .htaccess for a RewriteBase line
$rewriteBase = '';
$sourceFile = JPATH_SITE . DIRECTORY_SEPARATOR . '.htaccess.eom';
if (!JFile::exists($sourceFile))
{
$sourceFile = JPATH_SITE . DIRECTORY_SEPARATOR . '.htaccess';
}
if (JFile::exists($sourceFile))
{
$sourceData = JFile::read($sourceFile);
$sourceData = explode("\n", $sourceData);
foreach ($sourceData as $line)
{
$line = trim($line);
if (substr($line, 0, 12) == 'RewriteBase ')
{
$rewriteBase = $line;
break;
}
}
}
// And finally create our übercool stealth .htaccess
$ip = $this->getMyIP();
$ip = str_replace('.', '\\.', $ip);
$htaccess = <<<ENDHTACCESS
RewriteEngine On
$rewriteBase
RewriteCond %{REMOTE_HOST} !$ip
RewriteCond %{REQUEST_URI} !offline\.html
RewriteCond %{REQUEST_URI} !(\.png|\.jpg|\.gif|\.jpeg|\.bmp|\.swf|\.css|\.js)$
RewriteRule (.*) offline.html [R=307,L]
ENDHTACCESS;
return $htaccess;
}
}