From 4744e4a5e4e87d9caa596f8b12a34ece897b61c4 Mon Sep 17 00:00:00 2001
From: JimMoen <LnJimMoen@outlook.com>
Date: Fri, 29 Apr 2022 19:43:13 +0800
Subject: [PATCH] fix(authn): make sure http headers are bin

---
 .../emqx_authn/src/simple_authn/emqx_authn_http.erl | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/apps/emqx_authn/src/simple_authn/emqx_authn_http.erl b/apps/emqx_authn/src/simple_authn/emqx_authn_http.erl
index 9e25f5a7a..7bf591c72 100644
--- a/apps/emqx_authn/src/simple_authn/emqx_authn_http.erl
+++ b/apps/emqx_authn/src/simple_authn/emqx_authn_http.erl
@@ -172,7 +172,7 @@ create(
     State = #{
         method => Method,
         path => Path,
-        headers => Headers,
+        headers => ensure_header_name_type(Headers),
         base_path_templete => emqx_authn_utils:parse_str(Path),
         base_query_template => emqx_authn_utils:parse_deep(
             cow_qs:parse_qs(to_bin(Query))
@@ -421,3 +421,14 @@ to_bin(L) when is_list(L) ->
 
 get_conf_val(Name, Conf) ->
     hocon_maps:get(?CONF_NS ++ "." ++ Name, Conf).
+
+ensure_header_name_type(Headers) ->
+    Fun = fun
+        (Key, _Val, Acc) when is_binary(Key) ->
+            Acc;
+        (Key, Val, Acc) when is_atom(Key) ->
+            Acc2 = maps:remove(Key, Acc),
+            BinKey = erlang:atom_to_binary(Key),
+            Acc2#{BinKey => Val}
+    end,
+    maps:fold(Fun, Headers, Headers).