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Modify handling of reverse proxies

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This commit is contained in:
e107steved
2010-10-21 18:03:23 +00:00
parent 97eecaad36
commit 1ce87f76b0
1 changed files with 14 additions and 20 deletions
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32
e107_handlers/e107_class.php
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@@ -2358,29 +2358,23 @@ class e107
{ {
if(!$this->_ip_cache) if(!$this->_ip_cache)
{ {
if(getenv('HTTP_X_FORWARDED_FOR')) $ip=$_SERVER['REMOTE_ADDR'];
if (getenv('HTTP_X_FORWARDED_FOR'))
{ {
$ip = $_SERVER['REMOTE_ADDR']; if (preg_match("/^([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+)/", getenv('HTTP_X_FORWARDED_FOR'), $ip3))
$ip3 = array();
if(preg_match('/^([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+)/', getenv('HTTP_X_FORWARDED_FOR'), $ip3))
{ {
$ip2 = array( $ip2 = array('#^0\..*#',
'#^0\..*#' , '#^127\..*#' , // Local loopbacks '#^127\..*#', // Local loopbacks
'#^192\.168\..*#' , // RFC1918 - Private Network '#^192\.168\..*#', // RFC1918 - Private Network
'#^172\.(?:1[6789]|2\d|3[01])\..*#' , // RFC1918 - Private network '#^172\.(?:1[6789]|2\d|3[01])\..*#', // RFC1918 - Private network
'#^10\..*#' , // RFC1918 - Private Network '#^10\..*#', // RFC1918 - Private Network
'#^169\.254\..*#' , // RFC3330 - Link-local, auto-DHCP '#^169\.254\..*#', // RFC3330 - Link-local, auto-DHCP
'#^2(?:2[456789]|[345][0-9])\..*#' '#^2(?:2[456789]|[345][0-9])\..*#' // Single check for Class D and Class E
); // Single check for Class D and Class E );
$ip = preg_replace($ip2, $ip3[1], $ip);
$ip = preg_replace($ip2, $ip, $ip3[1]);
} }
} }
else if ($ip == "")
{
$ip = $_SERVER['REMOTE_ADDR'];
}
if($ip == "")
{ {
$ip = "x.x.x.x"; $ip = "x.x.x.x";
} }