Fix introspection_client_auth_method

Author: MarcialRosales

deps/rabbitmq_auth_backend_oauth2/src/rabbit_oauth2_schema.erl

@@ -232,26 +232,26 @@ merge_list_of_maps(ListOfMaps) ->
 extract_oauth_providers_properties(Settings) ->
     KeyFun = fun extract_key_as_binary/1,
     ValueFun = fun extract_value/1,
+    MapValueFun = fun(V) -> 
+        case V of 
+            L when is_list(L) -> list_to_binary(L);
+            B when is_binary(B) -> B;
+            _ -> V
+        end end,
 
     OAuthProviders = [{Name, mapOauthProviderProperty(
         {
             list_to_atom(Key),
-            list_to_binary(V)})
+            MapValueFun(V)})
         } || {[?AUTH_OAUTH2, ?OAUTH_PROVIDERS, Name, Key], V} <- Settings ],
     maps:groups_from_list(KeyFun, ValueFun, OAuthProviders).
 
 
 extract_resource_server_properties(Settings) ->
     KeyFun = fun extract_key_as_binary/1,
     ValueFun = fun extract_value/1,
-    MapValueFun = fun(V) -> 
-        case V of 
-            jwt -> V;
-            opaque -> V;
-            _ -> list_to_binary(V)
-        end end,
 
-    ResourceServers = [{Name, {list_to_atom(resource_servers_key_synonym(Key)), MapValueFun(V)}}
+    ResourceServers = [{Name, {list_to_atom(resource_servers_key_synonym(Key)), list_to_binary(V)}}
         || {[?AUTH_OAUTH2, ?RESOURCE_SERVERS, Name, Key], V} <- Settings ],
     maps:groups_from_list(KeyFun, ValueFun, ResourceServers).
 

deps/rabbitmq_auth_backend_oauth2/test/config_schema_SUITE_data/rabbitmq_auth_backend_oauth2.snippets

@@ -351,6 +351,7 @@
        auth_oauth2.access_token_format = jwt
        auth_oauth2.oauth_providers.p.introspection_endpoint = https://introspect
        auth_oauth2.oauth_providers.p.introspection_client_id = rabbit
+       auth_oauth2.oauth_providers.p.introspection_client_auth_method = basic
        auth_oauth2.oauth_providers.p.introspection_client_secret = rabbit_secret",
        [
         {rabbitmq_auth_backend_oauth2, [
@@ -359,8 +360,9 @@
             {oauth_providers, #{
               <<"p">> => [
                 {introspection_client_secret, <<"rabbit_secret">>},
+                {introspection_client_auth_method, basic},
                 {introspection_client_id, <<"rabbit">>},                
-                {introspection_endpoint, "https://introspect"}
+                {introspection_endpoint, "https://introspect"}                
               ]
             }}                       
         ]}