fix ip whitelisting (#10218) (#10230)

Co-authored-by: Giovanni Allegri <giohappy@gmail.com>

geonode/base/auth.py

@@ -266,16 +266,12 @@ def visitor_ip_address(request):
 
 def is_ipaddress_in_whitelist(visitor_ip, whitelist):
     # Chech if an IP is in the whitelisted IP ranges
-    in_whitelist = True
-    if not visitor_ip:
-        in_whitelist = False
     if visitor_ip and whitelist and len(whitelist) > 0:
         visitor_ipaddress = ipaddress.ip_address(visitor_ip)
         for wip in whitelist:
             try:
                 if visitor_ipaddress not in ipaddress.ip_network(wip):
-                    in_whitelist = False
-                    break
+                    return True
             except Exception:
-                in_whitelist = False
-    return in_whitelist
+                pass
+    return False