126 lines
5.3 KiB
Erlang
126 lines
5.3 KiB
Erlang
%%--------------------------------------------------------------------
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%% Copyright (c) 2020-2023 EMQ Technologies Co., Ltd. All Rights Reserved.
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%%
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%% Licensed under the Apache License, Version 2.0 (the "License");
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%% you may not use this file except in compliance with the License.
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%% You may obtain a copy of the License at
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%%
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%% http://www.apache.org/licenses/LICENSE-2.0
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%%
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%% Unless required by applicable law or agreed to in writing, software
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%% distributed under the License is distributed on an "AS IS" BASIS,
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%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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%% See the License for the specific language governing permissions and
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%% limitations under the License.
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%%--------------------------------------------------------------------
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-module(emqx_mod_rewrite_SUITE).
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-compile(export_all).
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-compile(nowarn_export_all).
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-include_lib("emqx/include/emqx_mqtt.hrl").
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-include_lib("eunit/include/eunit.hrl").
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-define(RULES, [{rewrite, pub, <<"x/#">>,<<"^x/y/(.+)$">>,<<"z/y/$1">>},
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{rewrite, pub, <<"name/#">>,<<"^name/(.+)$">>,<<"pub/%u/$1">>},
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{rewrite, pub, <<"c/#">>,<<"^c/(.+)$">>,<<"pub/%c/$1">>},
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{rewrite, sub, <<"y/+/z/#">>,<<"^y/(.+)/z/(.+)$">>,<<"y/z/$2">>},
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{rewrite, sub, <<"name/#">>,<<"^name/(.+)$">>,<<"sub/%u/$1">>},
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{rewrite, sub, <<"c/#">>,<<"^c/(.+)$">>,<<"sub/%c/$1">>}
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]).
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-define(BAD_RULES_1, [{rewrite, pub, <<"x/#">>,<<"^x/y/(.+)$">>,<<"z/y/+">>}]).
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%% empty topic filter/name won't be ranched cased `emqx.conf` will be checked before emqx started
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%% but we need this check for emqx-ee modules api
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-define(BAD_RULES_2, [{rewrite, pub, <<"">>,<<"^x/y/(.+)$">>,<<"z/y/+">>}]).
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-define(BAD_RULES_3, [{rewrite, pub, <<"name/#">>,<<"^name/(.+)$">>,<<"">>}]).
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all() -> emqx_ct:all(?MODULE).
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init_per_suite(Config) ->
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emqx_ct_helpers:boot_modules(all),
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emqx_ct_helpers:start_apps([emqx_modules]),
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%% Ensure all the modules unloaded.
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ok = emqx_modules:unload(),
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Config.
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end_per_suite(_Config) ->
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emqx_ct_helpers:stop_apps([emqx_modules]).
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%% Test case for emqx_mod_write
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t_mod_rewrite(_Config) ->
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ok = emqx_mod_rewrite:load(?RULES),
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{ok, C} = emqtt:start_link([{clientid, <<"c1">>}, {username , <<"u1">>}]),
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{ok, _} = emqtt:connect(C),
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PubOrigTopics = [<<"x/y/2">>, <<"x/1/2">>, <<"name/1">>, <<"c/1">>],
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PubDestTopics = [<<"z/y/2">>, <<"x/1/2">>, <<"pub/u1/1">>, <<"pub/c1/1">>],
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SubOrigTopics = [<<"y/a/z/b">>, <<"y/def">>, <<"name/1">>, <<"c/1">>],
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SubDestTopics = [<<"y/z/b">>, <<"y/def">>, <<"sub/u1/1">>, <<"sub/c1/1">>],
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%% Sub Rules
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{ok, _Props, _} = emqtt:subscribe(C, [{Topic, ?QOS_1} || Topic <- SubOrigTopics]),
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timer:sleep(100),
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Subscriptions = emqx_broker:subscriptions(<<"c1">>),
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?assertEqual(SubDestTopics, [Topic || {Topic, _SubOpts} <- Subscriptions]),
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RecvTopics1 = [begin
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ok = emqtt:publish(C, Topic, <<"payload">>),
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{ok, #{topic := RecvTopic}} = receive_publish(100),
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RecvTopic
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end || Topic <- SubDestTopics],
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?assertEqual(SubDestTopics, RecvTopics1),
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{ok, _, _} = emqtt:unsubscribe(C, SubOrigTopics),
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timer:sleep(100),
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?assertEqual([], emqx_broker:subscriptions(<<"c1">>)),
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%% Pub Rules
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{ok, _, _} = emqtt:subscribe(C, [{Topic, ?QOS_1} || Topic <- PubDestTopics]),
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RecvTopics2 = [begin
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ok = emqtt:publish(C, Topic, <<"payload">>),
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{ok, #{topic := RecvTopic}} = receive_publish(100),
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RecvTopic
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end || Topic <- PubOrigTopics],
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?assertEqual(PubDestTopics, RecvTopics2),
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{ok, _, _} = emqtt:unsubscribe(C, PubDestTopics),
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ok = emqtt:disconnect(C),
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ok = emqx_mod_rewrite:unload(?RULES).
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t_rewrite_rule(_Config) ->
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{PubRules, SubRules} = emqx_mod_rewrite:compile_rules(?RULES),
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%% assert ordering
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?assertMatch([{rewrite, <<"x/#">>, _, <<"z/y/$1">>},
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{rewrite, <<"name/#">>, _, <<"pub/%u/$1">>},
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{rewrite, <<"c/#">>, _, <<"pub/%c/$1">>}],
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PubRules),
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?assertMatch([{rewrite, <<"y/+/z/#">>, _, <<"y/z/$2">>},
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{rewrite, <<"name/#">>, _, <<"sub/%u/$1">>},
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{rewrite, <<"c/#">>, _, <<"sub/%c/$1">>}],
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SubRules),
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?assertEqual(<<"z/y/2">>, emqx_mod_rewrite:match_and_rewrite(<<"x/y/2">>, PubRules, [])),
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?assertEqual(<<"x/1/2">>, emqx_mod_rewrite:match_and_rewrite(<<"x/1/2">>, PubRules, [])),
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?assertEqual(<<"y/z/b">>, emqx_mod_rewrite:match_and_rewrite(<<"y/a/z/b">>, SubRules, [])),
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?assertEqual(<<"y/def">>, emqx_mod_rewrite:match_and_rewrite(<<"y/def">>, SubRules, [])).
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t_rewrite_bad_rule_1(_Config) ->
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?assertEqual({[], []}, emqx_mod_rewrite:compile_rules(?BAD_RULES_1)).
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t_rewrite_bad_rule_2(_Config) ->
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?assertEqual({[], []}, emqx_mod_rewrite:compile_rules(?BAD_RULES_2)).
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t_rewrite_bad_rule_3(_Config) ->
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?assertEqual({[], []}, emqx_mod_rewrite:compile_rules(?BAD_RULES_3)).
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%%--------------------------------------------------------------------
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%% Internal functions
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%%--------------------------------------------------------------------
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receive_publish(Timeout) ->
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receive
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{publish, Publish} -> {ok, Publish}
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after
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Timeout -> {error, timeout}
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end.
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