diff options
Diffstat (limited to 'program/lib/Roundcube/rcube_utils.php')
| -rw-r--r-- | program/lib/Roundcube/rcube_utils.php | 25 |
1 files changed, 18 insertions, 7 deletions
diff --git a/program/lib/Roundcube/rcube_utils.php b/program/lib/Roundcube/rcube_utils.php index ae3e3a414..c2009cee0 100644 --- a/program/lib/Roundcube/rcube_utils.php +++ b/program/lib/Roundcube/rcube_utils.php @@ -596,7 +596,9 @@ class rcube_utils if (!empty($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) != 'off') { return true; } - if (!empty($_SERVER['HTTP_X_FORWARDED_PROTO']) && strtolower($_SERVER['HTTP_X_FORWARDED_PROTO']) == 'https') { + if (!empty($_SERVER['HTTP_X_FORWARDED_PROTO']) + && strtolower($_SERVER['HTTP_X_FORWARDED_PROTO']) == 'https' + && in_array($_SERVER['REMOTE_ADDR'], rcube::get_instance()->config->get('proxy_whitelist', array()))) { return true; } if ($port && $_SERVER['SERVER_PORT'] == $port) { @@ -681,13 +683,22 @@ class rcube_utils */ public static function remote_addr() { - if (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) { - $hosts = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR'], 2); - return $hosts[0]; - } + // Check if any of the headers are set first to improve performance + if (!empty($_SERVER['HTTP_X_FORWARDED_FOR']) || !empty($_SERVER['HTTP_X_REAL_IP'])) { + $proxy_whitelist = rcube::get_instance()->config->get('proxy_whitelist', array()); + if (in_array($_SERVER['REMOTE_ADDR'], $proxy_whitelist)) { + if (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) { + foreach(array_reverse(explode(',', $_SERVER['HTTP_X_FORWARDED_FOR'])) as $forwarded_ip) { + if (!in_array($forwarded_ip, $proxy_whitelist)) { + return $forwarded_ip; + } + } + } - if (!empty($_SERVER['HTTP_X_REAL_IP'])) { - return $_SERVER['HTTP_X_REAL_IP']; + if (!empty($_SERVER['HTTP_X_REAL_IP'])) { + return $_SERVER['HTTP_X_REAL_IP']; + } + } } if (!empty($_SERVER['REMOTE_ADDR'])) { |