chore(authn): add supervisor for authn and fix checking errors

apps/emqx/src/emqx_authentication.erl

@@ -281,8 +281,7 @@ do_post_config_update({move_authenticator, ChainName, AuthenticatorID, Position}
 
 check_config(Config) ->
     #{authentication := CheckedConfig} =
-        hocon_schema:check_plain(?MODULE, #{<<"authentication">> => Config},
-                                 #{nullable => true, atom_key => true}),
+        hocon_schema:check_plain(?MODULE, #{<<"authentication">> => Config}, #{atom_key => true}),
     CheckedConfig.
 
 %%------------------------------------------------------------------------------

apps/emqx/src/emqx_authentication_sup.erl

@@ -0,0 +1,48 @@
+%%--------------------------------------------------------------------
+%% Copyright (c) 2017-2021 EMQ Technologies Co., Ltd. All Rights Reserved.
+%%
+%% Licensed under the Apache License, Version 2.0 (the "License");
+%% you may not use this file except in compliance with the License.
+%% You may obtain a copy of the License at
+%%
+%%     http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%%--------------------------------------------------------------------
+
+-module(emqx_authentication_sup).
+
+-behaviour(supervisor).
+
+-export([start_link/0]).
+
+-export([init/1]).
+
+%%--------------------------------------------------------------------
+%% API
+%%--------------------------------------------------------------------
+
+start_link() ->
+    supervisor:start_link({local, ?MODULE}, ?MODULE, []).
+
+%%--------------------------------------------------------------------
+%% Supervisor callbacks
+%%--------------------------------------------------------------------
+
+init([]) ->
+    SupFlags = #{strategy => one_for_one,
+                 intensity => 100,
+                 period => 10},
+
+    AuthN = #{id => emqx_authentication,
+              start => {emqx_authentication, start_link, []},
+              restart => permanent,
+              shutdown => 1000,
+              type => worker,
+              modules => [emqx_authentication]},
+
+    {ok, {SupFlags, [AuthN]}}.

apps/emqx/src/emqx_broker_sup.erl

@@ -44,13 +44,13 @@ init([]) ->
                   modules => [emqx_shared_sub]},
 
     %% Authentication
-    AuthN = #{id => authn,
-              start => {emqx_authentication, start_link, []},
-              restart => permanent,
-              shutdown => 2000,
-              type => worker,
-              modules => [emqx_authentication]},
-
+    AuthNSup = #{id => emqx_authentication_sup,
+                 start => {emqx_authentication_sup, start_link, []},
+                 restart => permanent,
+                 shutdown => infinity,
+                 type => supervisor,
+                 modules => [emqx_authentication_sup]},
+   
     %% Broker helper
     Helper = #{id => helper,
                start => {emqx_broker_helper, start_link, []},
@@ -59,5 +59,5 @@ init([]) ->
                type => worker,
                modules => [emqx_broker_helper]},
 
-    {ok, {{one_for_all, 0, 1}, [BrokerPool, SharedSub, AuthN, Helper]}}.
+    {ok, {{one_for_all, 0, 1}, [BrokerPool, SharedSub, AuthNSup, Helper]}}.
 

apps/emqx_authn/src/emqx_authn_api.erl

@@ -1971,7 +1971,7 @@ find_config(AuthenticatorID, AuthenticatorsConfig) ->
 
 fill_defaults(Config) ->
     #{<<"authentication">> := CheckedConfig} = hocon_schema:check_plain(
-        ?AUTHN, #{<<"authentication">> => Config}, #{nullable => true, no_conversion => true}),
+        ?AUTHN, #{<<"authentication">> => Config}, #{no_conversion => true}),
     CheckedConfig.
 
 convert_certs(#{<<"ssl">> := SSLOpts} = Config) ->

apps/emqx_authn/src/simple_authn/emqx_authn_http.erl

@@ -77,7 +77,6 @@ validations() ->
     ].
 
 url(type) -> binary();
-url(nullable) -> false;
 url(validator) -> [fun check_url/1];
 url(_) -> undefined.
 
@@ -98,7 +97,6 @@ headers_no_content_type(default) -> default_headers_no_content_type();
 headers_no_content_type(_) -> undefined.
 
 body(type) -> map();
-body(nullable) -> false;
 body(validator) -> [fun check_body/1];
 body(_) -> undefined.
 

apps/emqx_authn/src/simple_authn/emqx_authn_mongodb.erl

@@ -70,15 +70,12 @@ common_fields() ->
     ] ++ emqx_authn_schema:common_fields().
 
 collection(type) -> binary();
-collection(nullable) -> false;
 collection(_) -> undefined.
 
 selector(type) -> map();
-selector(nullable) -> false;
 selector(_) -> undefined.
 
 password_hash_field(type) -> binary();
-password_hash_field(nullable) -> false;
 password_hash_field(_) -> undefined.
 
 salt_field(type) -> binary();

apps/emqx_authn/src/simple_authn/emqx_authn_mysql.erl

@@ -63,7 +63,6 @@ salt_position(default) -> prefix;
 salt_position(_) -> undefined.
 
 query(type) -> string();
-query(nullable) -> false;
 query(_) -> undefined.
 
 query_timeout(type) -> integer();

apps/emqx_authn/src/simple_authn/emqx_authn_pgsql.erl

@@ -59,7 +59,6 @@ password_hash_algorithm(default) -> sha256;
 password_hash_algorithm(_) -> undefined.
 
 query(type) -> string();
-query(nullable) -> false;
 query(_) -> undefined.
 
 %%------------------------------------------------------------------------------

apps/emqx_authn/src/simple_authn/emqx_authn_redis.erl

@@ -66,7 +66,6 @@ common_fields() ->
     ] ++ emqx_authn_schema:common_fields().
 
 query(type) -> string();
-query(nullable) -> false;
 query(_) -> undefined.
 
 password_hash_algorithm(type) -> {enum, [plain, md5, sha, sha256, sha512, bcrypt]};