Read X-Real-IP header if set

2012-11-19 23:45:51 +01:00 · 2012-11-19 23:45:51 +01:00 · f1a8819fa7
parent dc96c778e9
commit f1a8819fa7
1 changed files with 8 additions and 1 deletions
--- a/ifconfig.go
+++ b/ifconfig.go
@ -26,7 +26,14 @@ func handler(w http.ResponseWriter, req *http.Request) {
        return
    }

-    host, _, err := net.SplitHostPort(req.RemoteAddr)
+    var host string
+    var err error
+    realIP := req.Header.Get("X-Real-IP")
+    if realIP != "" {
+        host = realIP
+    } else {
+        host, _, err = net.SplitHostPort(req.RemoteAddr)
+    }
    if err != nil {
        log.Printf("Failed to parse remote address: %s\n", req.RemoteAddr)
        http.Error(w, "Failed to parse remote address", 500)