build: delete sasl plugin

apps/emqx_sasl/src/emqx_sasl.app.src

@@ -1,14 +0,0 @@
-{application, emqx_sasl,
- [{description, "EMQ X SASL"},
-  {vsn, "4.3.1"}, % strict semver, bump manually!
-  {modules, []},
-  {registered, [emqx_sasl_sup]},
-  {applications, [kernel,stdlib,pbkdf2]},
-  {mod, {emqx_sasl_app,[]}},
-  {env, []},
-  {licenses, ["Apache-2.0"]},
-  {maintainers, ["EMQ X Team <contact@emqx.io>"]},
-  {links, [{"Homepage", "https://emqx.io/"},
-           {"Github", "https://github.com/emqx/emqx-sasl"}
-          ]}
- ]}.

apps/emqx_sasl/src/emqx_sasl.appup.src

@@ -1,13 +0,0 @@
-%% -*-: erlang -*-
-{VSN,
- [
-   {"4.3.0", [
-     {restart_application, emqx_sasl}
-   ]}
- ],
- [
-   {"4.3.0", [
-     {restart_application, emqx_sasl}
-   ]}
- ]
-}.

apps/emqx_sasl/src/emqx_sasl.erl

@@ -1,56 +0,0 @@
-%%--------------------------------------------------------------------
-%% Copyright (c) 2020-2021 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_sasl).
-
--include_lib("emqx/include/logger.hrl").
-
--export([ load/0
-        , unload/0
-        , init/0
-        , check/3
-        , supported/0
-        ]).
-
-load() ->
-    emqx:hook('client.enhanced_authenticate', {?MODULE, check, []}).
-
-unload() ->
-    emqx:unhook('client.enhanced_authenticate', {?MODULE, check}).
-
-init() ->
-    emqx_sasl_scram:init().
-
-check(Method, Data, Cache) ->
-    try
-        case Method of
-            <<"SCRAM-SHA-1">> ->
-                case emqx_sasl_scram:check(Data, Cache) of
-                    {ok, NData, NCache} -> {ok, {ok, NData, NCache}};
-                    {continue, NData, NCache} -> {ok, {continue, NData, NCache}};
-                    Re -> {stop, Re}
-                end;
-            _ ->
-                {error, unsupported_mechanism}
-        end
-    catch
-        _Class:_Reason:Stack ->
-            ?LOG(error, "[emqx_sasl] authentication failed: ~0p", [Stack]),
-            {error, authentication_failed}
-    end.
-
-supported() ->
-    [<<"SCRAM-SHA-1">>].