Don't continue if the cookie has been set + ticket has created. 'unknown' was found...

[ctracker.git] / libs / lib_general.php

diff --git a/libs/lib_general.php b/libs/lib_general.php
index 84dd1bf0f7818a73db7c5189da467e2dc74f3260..62062d7b2586bf4d094520b762cd11d0ac40ef6a 100644 (file)
--- a/libs/lib_general.php
+++ b/libs/lib_general.php
@@ -87,20 +87,23 @@ function determineCrackerTrackerRealRemoteAddress () {
        // Is a proxy in use?
        if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {
                // Proxy was used
-               $address = $_SERVER['HTTP_X_FORWARDED_FOR'];
+               $address = trim($_SERVER['HTTP_X_FORWARDED_FOR']);
        } elseif (isset($_SERVER['HTTP_CLIENT_IP'])) {
                // Yet, another proxy
-               $address = $_SERVER['HTTP_CLIENT_IP'];
+               $address = trim($_SERVER['HTTP_CLIENT_IP']);
        } elseif (isset($_SERVER['REMOTE_ADDR'])) {
                // The regular address when no proxy was used
-               $address = getenv('REMOTE_ADDR');
+               $address = trim(getenv('REMOTE_ADDR'));
        }
 
-       // This strips out the real address from proxy output
-       if (strstr($address, ',')) {
+       if ($address == 'unknown') {
+               // Invalid IP somehow given
+               $address = '0.0.0.0';
+       elseif (strstr($address, ',')) {
+               // This strips out the real address from proxy output
                $addressArray = explode(',', $address);
                $address = $addressArray[0];
-       } // END - if
+       }
 
        // Return the result
        return $address;