From: Óliver García Albertos <3skuero@gmail.com>
Date: Thu, 22 Jun 2023 07:34:51 +0000 (+0100)
Subject: logger: Use forwarded instead of peer IP address (#3223)
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logger: Use forwarded instead of peer IP address (#3223)
---

diff --git a/src/lib.rs b/src/lib.rs
index 1bc00f70..f6ca7954 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -165,7 +165,10 @@ pub async fn start_lemmy_server() -> Result<(), LemmyError> {
     };
 
     App::new()
-      .wrap(middleware::Logger::default())
+      .wrap(middleware::Logger::new(
+        // This is the default log format save for the usage of %{r}a over %a to guarantee to record the client's (forwarded) IP and not the last peer address, since the latter is frequently just a reverse proxy
+        "%{r}a '%r' %s %b '%{Referer}i' '%{User-Agent}i' %T",
+      ))
       .wrap(cors_config)
       .wrap(TracingLogger::<QuieterRootSpanBuilder>::new())
       .app_data(Data::new(context))