? bootstrap.inc?r1=1.214
? bootstrap.inc?r1=1.214&r2=1.215&view=patch
? cluster-ip_0.patch
? ip_address.patch
? includes/bootstrap.test
Index: includes/bootstrap.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/bootstrap.inc,v
retrieving revision 1.206.2.4
diff -u -p -r1.206.2.4 bootstrap.inc
--- includes/bootstrap.inc	18 Aug 2008 18:56:30 -0000	1.206.2.4
+++ includes/bootstrap.inc	21 Aug 2008 21:51:02 -0000
@@ -1133,25 +1133,39 @@ function language_default($property = NU
 
 /**
  * If Drupal is behind a reverse proxy, we use the X-Forwarded-For header
- * instead of $_SERVER['REMOTE_ADDR'], which would be the IP address
- * of the proxy server, and not the client's.
+ * instead of $_SERVER['REMOTE_ADDR'], which would be the IP address of 
+ * the proxy server, and not the client's.  If Drupal is run in a cluster
+ * we use the X-Cluster-Client-Ip header instead.
  *
+ * @param $reset
+ *   Reset the current IP address saved in static.
  * @return
- *   IP address of client machine, adjusted for reverse proxy.
+ *   IP address of client machine, adjusted for reverse proxy and/or cluster
+ *   environments.
  */
-function ip_address() {
+function ip_address($reset = false) {
   static $ip_address = NULL;
 
-  if (!isset($ip_address)) {
+  if (!isset($ip_address) || $reset) {
     $ip_address = $_SERVER['REMOTE_ADDR'];
-    if (variable_get('reverse_proxy', 0) && array_key_exists('HTTP_X_FORWARDED_FOR', $_SERVER)) {
-      // If an array of known reverse proxy IPs is provided, then trust
-      // the XFF header if request really comes from one of them.
-      $reverse_proxy_addresses = variable_get('reverse_proxy_addresses', array());
-      if (!empty($reverse_proxy_addresses) && in_array($ip_address, $reverse_proxy_addresses, TRUE)) {
-        // If there are several arguments, we need to check the most
-        // recently added one, i.e. the last one.
-        $ip_address = array_pop(explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']));
+   
+    if (variable_get('reverse_proxy', 0)) {
+      if (array_key_exists('HTTP_X_FORWARDED_FOR', $_SERVER)) {
+        // If an array of known reverse proxy IPs is provided, then trust
+        // the XFF header if request really comes from one of them.
+        $reverse_proxy_addresses = variable_get('reverse_proxy_addresses', array());
+        if (!empty($reverse_proxy_addresses) && in_array($ip_address, $reverse_proxy_addresses, TRUE)) {
+          // If there are several arguments, we need to check the most
+          // recently added one, i.e. the last one.
+          $ip_address = array_pop(explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']));
+        }
+      }
+
+      // When Drupal is run in a cluster environment, REMOTE_ADDR contains the IP
+      // address of a server in the cluster, while the IP address of the client is
+      // stored in HTTP_X_CLUSTER_CLIENT_IP.
+      if (array_key_exists('HTTP_X_CLUSTER_CLIENT_IP', $_SERVER)) {
+        $ip_address = $_SERVER['HTTP_X_CLUSTER_CLIENT_IP'];
       }
     }
   }