From 9377ca3ef4b274df9b25cc56f38d69e70a61985c Mon Sep 17 00:00:00 2001
From: Quentin Dufour <quentin@deuxfleurs.fr>
Date: Tue, 13 Feb 2024 16:57:01 +0100
Subject: [PATCH] Accept authz id == auth id

---
 src/auth.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/auth.rs b/src/auth.rs
index d5cc5ac..064c90c 100644
--- a/src/auth.rs
+++ b/src/auth.rs
@@ -202,11 +202,12 @@ enum State {
 
 const SERVER_MAJOR: u64 = 1;
 const SERVER_MINOR: u64 = 2;
+const EMPTY_AUTHZ: &[u8] = &[];
 impl State {
     async fn try_auth_plain<'a>(&self, data: &'a [u8], login: &ArcLoginProvider) -> AuthRes {
         // Check that we can extract user's login+pass
         let (ubin, pbin) = match auth_plain(&data) {
-            Ok(([], ([], user, pass))) => (user, pass),
+            Ok(([], (authz, user, pass))) if authz == user || authz == EMPTY_AUTHZ => (user, pass),
             Ok(_) => {
                 tracing::error!("Impersonating user is not supported");
                 return AuthRes::Failed(None, None);