Real-IP middleware for fastcgi + nginx doc update

README.md

@@ -48,6 +48,8 @@ server {
     
     client_max_body_size 4096M;
     location / {
+        proxy_set_header        X-Real-IP       $remote_addr;
+        proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
         fastcgi_pass 127.0.0.1:8080;
         include fastcgi_params;
     }

server.go

@@ -48,6 +48,10 @@ func setup() *web.Mux {
 	// middleware
 	mux.Use(middleware.RequestID)
 
+	if Config.fastcgi {
+		mux.Use(middleware.RealIP)
+	}
+
 	if !Config.noLogs {
 		mux.Use(middleware.Logger)
 	}