fix(emqx_management): Don't fix broken emqx_auth_mnesia data

apps/emqx_management/src/emqx_mgmt_data_backup.erl

@@ -44,7 +44,7 @@
         , import_blacklist/1
         , import_applications/1
         , import_users/1
-        , import_auth_clientid/2 %% BACKW: 4.1.x
+        , import_auth_clientid/1 %% BACKW: 4.1.x
         , import_auth_username/1 %% BACKW: 4.1.x
         , import_auth_mnesia/2
         , import_acl_mnesia/2
@@ -405,17 +405,13 @@ import_users(Users) ->
                       emqx_dashboard_admin:force_add_user(Username, NPassword, Tags)
                   end, Users).
 
-import_auth_clientid(Lists, Version) ->
+import_auth_clientid(Lists) ->
     case ets:info(emqx_user) of
         undefined -> ok;
         _ ->
-            lists:foreach(fun(#{<<"clientid">> := Clientid, <<"password">> := Password0}) ->
-                                  Password = case Version of
-                                                 "4.1" -> base64:decode(Password0);
-                                                 _     -> ensure_binary(Password0)
-                                             end,
+            lists:foreach(fun(#{<<"clientid">> := Clientid, <<"password">> := Password}) ->
                                   mnesia:dirty_write({emqx_user, {clientid, Clientid}
-                                                               , Password
+                                                               , base64:decode(Password)
                                                                ,  erlang:system_time(millisecond)})
                           end, Lists)
     end.
@@ -648,7 +644,7 @@ do_import_data(Data, Version) ->
     import_blacklist(maps:get(<<"blacklist">>, Data, [])),
     import_applications(maps:get(<<"apps">>, Data, [])),
     import_users(maps:get(<<"users">>, Data, [])),
-    import_auth_clientid(maps:get(<<"auth_clientid">>, Data, []), Version),
+    import_auth_clientid(maps:get(<<"auth_clientid">>, Data, [])),
     import_auth_username(maps:get(<<"auth_username">>, Data, [])),
     import_auth_mnesia(maps:get(<<"auth_mnesia">>, Data, []), Version),
     import_acl_mnesia(maps:get(<<"acl_mnesia">>, Data, []), Version).
@@ -675,6 +671,18 @@ flag_to_boolean(Other) -> Other.
 read_global_auth_type(Data, Version) when Version =:= "4.0" orelse
                                           Version =:= "4.1" orelse
                                           Version =:= "4.2" ->
+    ct:print("|>=> :~p~n", [Data]),
+    case {maps:get(<<"auth_mnesia">>, Data, []), maps:get(<<"acl_mnesia">>, Data, [])} of
+        {[], []} ->
+            %% Auth mnesia plugin is not used:
+            ok;
+        _ ->
+            do_read_global_auth_type(Data)
+    end;
+read_global_auth_type(_Data, _Version) ->
+    ok.
+
+do_read_global_auth_type(Data) ->
     case Data of
         #{<<"auth.mnesia.as">> := <<"username">>} ->
             application:set_env(emqx_auth_mnesia, as, username);
@@ -690,15 +698,8 @@ read_global_auth_type(Data, Version) when Version =:= "4.0" orelse
                          "  $ emqx_ctl data import <filename> --env '{\"auth.mnesia.as\":\"clientid\"}'",
                          []),
             error(import_failed)
-    end;
-read_global_auth_type(_Data, _Version) ->
-    ok.
+    end.
 
 get_old_type() ->
     {ok, Type} = application:get_env(emqx_auth_mnesia, as),
     Type.
-
-ensure_binary(A) when is_binary(A) ->
-    A;
-ensure_binary(A) ->
-    list_to_binary(A).

apps/emqx_management/test/emqx_auth_mnesia_migration_SUITE.erl

@@ -40,10 +40,10 @@ all() ->
 
 matrix() ->
     [{ImportAs, Version} || ImportAs <- [clientid, username]
-                          , Version <- ["v4.2.9", "v4.1.5"]].
+                          , Version <- ["v4.2.10", "v4.1.5"]].
 
 all() ->
-    [t_matrix, t_import_4_0].
+    [t_matrix, t_import_4_0, t_import_no_auth].
 
 -endif. %% EMQX_ENTERPRISE
 
@@ -82,11 +82,18 @@ t_matrix(Config) ->
 
 %% This version is special, since it doesn't have mnesia ACL plugin
 t_import_4_0(Config) ->
+    do_import_no_auth("v4.0.11.json", Config).
+
+t_import_no_auth(Config) ->
+    do_import_no_auth("v4.2.10-no-auth.json", Config).
+
+%% Test that importing configs that don't contain any mnesia ACL data
+%% doesn't require additional overrides:
+do_import_no_auth(File, Config) ->
     mnesia:clear_table(emqx_acl),
     mnesia:clear_table(emqx_user),
-    Filename = filename:join(proplists:get_value(data_dir, Config), "v4.0.7.json"),
-    Overrides = emqx_json:encode(#{<<"auth.mnesia.as">> => atom_to_binary(clientid)}),
-    ?assertMatch(ok, emqx_mgmt_data_backup:import(Filename, Overrides)),
+    Filename = filename:join(proplists:get_value(data_dir, Config), File),
+    ?assertMatch(ok, emqx_mgmt_data_backup:import(Filename, "{}")),
     timer:sleep(100),
     test_clientid_import().
 
@@ -121,9 +128,9 @@ do_import(Config, Type, V) ->
 
 test_clientid_import() ->
     [#emqx_user{password = _Pass}] = ets:lookup(emqx_user, {clientid, <<"emqx_clientid">>}),
-    %% Req = #{clientid => <<"emqx_clientid">>,
-    %%         password => <<"emqx_p">>
-    %%        },
-    %% ?assertMatch({stop, #{auth_result := success}},
-    %%              emqx_auth_mnesia:check(Req, #{}, #{hash_type => sha256})),
+    Req = #{clientid => <<"emqx_clientid">>,
+            password => <<"emqx_p">>
+           },
+    ?assertMatch({stop, #{auth_result := success}},
+                 emqx_auth_mnesia:check(Req, #{}, #{hash_type => sha256})),
     ok.

apps/emqx_management/test/emqx_auth_mnesia_migration_SUITE_data/make_data.sh

@@ -56,17 +56,28 @@ export_data() {
     cat "${filename}.json"
 }
 
+
+collect_4_2_no_mnesia_auth () {
+    container "4.2.10"
+
+    # Add clientid
+    docker exec emqx emqx_ctl clientid add emqx_clientid emqx_p
+
+    export_data "v4.2.10-no-auth"
+}
+
 collect_4_2 () {
-    container "4.2.9"
+    container "4.2.10"
     create_acls "api/v4/mqtt_acl"
     create_user mqtt_user
 
     # Add clientid
     docker exec emqx emqx_ctl clientid add emqx_clientid emqx_p
 
-    export_data "v4.2.9"
+    export_data "v4.2.10"
 }
 
+
 collect_e4_2 () {
     container "4.2.5" "ee"
     # Add ACLs:
@@ -77,7 +88,7 @@ collect_e4_2 () {
     # Add clientid
     docker exec emqx emqx_ctl clientid add emqx_clientid emqx_p
 
-    export_data "e4.2.9"
+    export_data "e4.2.5"
 }
 
 collect_e4_1 () {
@@ -105,17 +116,18 @@ collect_4_1 () {
 }
 
 collect_4_0 () {
-    container "v4.0.7"
+    container "v4.0.11"
 
     # Add clientid
     docker exec emqx emqx_ctl clientid add emqx_clientid emqx_p
 
-    export_data "v4.0.7"
+    export_data "v4.0.11"
 }
 
 collect_4_0
 collect_4_1
 collect_4_2
+collect_4_2_no_mnesia_auth
 collect_e4_2
 collect_e4_1
 

apps/emqx_management/test/emqx_auth_mnesia_migration_SUITE_data/v4.0.7.json

@@ -4,13 +4,13 @@
   "schemas": [],
   "rules": [],
   "resources": [],
-  "date": "2021-04-07 14:28:49",
+  "date": "2021-04-10 11:45:26",
   "blacklist": [],
   "auth_username": [],
   "auth_mnesia": [],
   "auth_clientid": [
     {
-      "password": "��Pd56c0fcdcd7636dcf8ed1ea48cd3d58acab74030157551f7f7f8684804b9239e",
+      "password": "9Sv2tzJlNDlmNWZhYWQ5Yzc4MWUwNmFhZWI4NjFlMDM2OWEzYmE1OTkxOTBhOGQ4N2Y3MzExY2ZiZmIxNTFkMTdkZmY=",
       "clientid": "emqx_clientid"
     }
   ],

apps/emqx_management/test/emqx_auth_mnesia_migration_SUITE_data/v4.2.10-no-auth.json

@@ -0,0 +1,34 @@
+{
+  "version": "4.2",
+  "date": "2021-04-12 10:41:10",
+  "rules": [],
+  "resources": [],
+  "blacklist": [],
+  "apps": [
+    {
+      "id": "admin",
+      "secret": "public",
+      "name": "Default",
+      "desc": "Application user",
+      "status": true,
+      "expired": "undefined"
+    }
+  ],
+  "users": [
+    {
+      "username": "admin",
+      "password": "e5M8oWEwQVqjdqceQIthC+3cPoY=",
+      "tags": "administrator"
+    }
+  ],
+  "auth_clientid": [
+    {
+      "clientid": "emqx_clientid",
+      "password": "uAP84TgyMjAyNGFhY2NlMWVlNDI2NTk1MzFiZjA4YzBjY2RjNjViZmZhNjkzYjhkMDE4NTg0ZWExYjFkZGY0MTBjYWM="
+    }
+  ],
+  "auth_username": [],
+  "auth_mnesia": [],
+  "acl_mnesia": [],
+  "schemas": []
+}

apps/emqx_management/test/emqx_auth_mnesia_migration_SUITE_data/v4.2.9.json

@@ -1,6 +1,6 @@
 {
   "version": "4.2",
-  "date": "2021-04-07 14:29:08",
+  "date": "2021-04-12 10:40:58",
   "rules": [],
   "resources": [],
   "blacklist": [],
@@ -17,14 +17,14 @@
   "users": [
     {
       "username": "admin",
-      "password": "gCBXISkivpaeKetFcPSm+Eaxyxs=",
+      "password": "8Vd7+gVg2J3nE1Xjyxqd59sA5mo=",
       "tags": "administrator"
     }
   ],
   "auth_clientid": [
     {
       "clientid": "emqx_clientid",
-      "password": "z�7d413fee461607065c161072f3707dc0a01bd1fc8476eb7be703a74a66701bb14"
+      "password": "UNb0e2RhNDc3NWIyNjg5Yjg4ZDExOTVhNWFkY2MzNGFmNzY2OTNmNmRlYzE4Y2ZiZjRjNzIyMWZlZTljZmEyZDE5Yzc="
     }
   ],
   "auth_username": [],