X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;ds=sidebyside;f=libs%2Flib_general.php;h=62062d7b2586bf4d094520b762cd11d0ac40ef6a;hb=6c5a53f41136b12d3cf0dd8dd448aecb929d44d7;hp=84dd1bf0f7818a73db7c5189da467e2dc74f3260;hpb=ab1e15e2008fda596d01a44c755fd2fb0c718521;p=ctracker.git

diff --git a/libs/lib_general.php b/libs/lib_general.php
index 84dd1bf..62062d7 100644
--- 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;