Merge pull request #9326 from lafirest/feat/check_is_banned

feat(delayed): check if the source client is banned when publishing a delayed message
This commit is contained in:
Zaiming (Stone) Shi 2022-11-08 12:10:39 +01:00 committed by GitHub
commit 073989834b
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16 changed files with 78 additions and 325 deletions

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@ -494,19 +494,6 @@ emqx_schema {
}
}
flapping_detect_clean_when_banned {
desc {
en: "Clean retained/delayed messages when client is banned.\n"
"Note: This may be expensive and only supports users banned by clientid."
zh: "当客户端被禁时删除其保留、延迟消息"
"注意: 这个操作开销可能较大,且只支持通过 clientid 封禁的用户数据。"
}
label: {
en: "Clean when banned"
zh: "被禁时清理消息"
}
}
persistent_session_store_enabled {
desc {
en: "Use the database to store information about persistent sessions.\n"

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@ -9,7 +9,6 @@
{emqx_conf,2}.
{emqx_dashboard,1}.
{emqx_delayed,1}.
{emqx_delayed,2}.
{emqx_exhook,1}.
{emqx_gateway_api_listeners,1}.
{emqx_gateway_cm,1}.

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@ -32,13 +32,11 @@
-export([
check/1,
create/1,
create/2,
look_up/1,
delete/1,
info/1,
format/1,
parse/1,
parse_opts/1
parse/1
]).
%% gen_server callbacks
@ -65,13 +63,6 @@
-compile(nowarn_export_all).
-endif.
-type banned_opts() :: #{
clean => boolean(),
atom() => term()
}.
-export_type([banned_opts/0]).
%%--------------------------------------------------------------------
%% Mnesia bootstrap
%%--------------------------------------------------------------------
@ -150,11 +141,6 @@ parse(Params) ->
{error, ErrorReason}
end
end.
parse_opts(Params) ->
Clean = maps:get(<<"clean">>, Params, false),
#{clean => Clean}.
pares_who(#{as := As, who := Who}) ->
pares_who(#{<<"as">> => As, <<"who">> => Who});
pares_who(#{<<"as">> := peerhost, <<"who">> := Peerhost0}) ->
@ -176,15 +162,13 @@ to_rfc3339(Timestamp) ->
-spec create(emqx_types:banned() | map()) ->
{ok, emqx_types:banned()} | {error, {already_exist, emqx_types:banned()}}.
create(
#{
who := Who,
by := By,
reason := Reason,
at := At,
until := Until
} = Data
) ->
create(#{
who := Who,
by := By,
reason := Reason,
at := At,
until := Until
}) ->
Banned = #banned{
who = Who,
by = By,
@ -192,16 +176,11 @@ create(
at = At,
until = Until
},
create(Banned, Data);
create(Banned = #banned{}) ->
create(Banned, #{clean => false}).
-spec create(emqx_types:banned(), banned_opts()) ->
{ok, emqx_types:banned()} | {error, {already_exist, emqx_types:banned()}}.
create(Banned = #banned{who = Who}, Opts) ->
create(Banned);
create(Banned = #banned{who = Who}) ->
case look_up(Who) of
[] ->
insert_banned(Banned, Opts),
mria:dirty_write(?BANNED_TAB, Banned),
{ok, Banned};
[OldBanned = #banned{until = Until}] ->
%% Don't support shorten or extend the until time by overwrite.
@ -211,7 +190,7 @@ create(Banned = #banned{who = Who}, Opts) ->
{error, {already_exist, OldBanned}};
%% overwrite expired one is ok.
false ->
insert_banned(Banned, Opts),
mria:dirty_write(?BANNED_TAB, Banned),
{ok, Banned}
end
end.
@ -287,12 +266,3 @@ expire_banned_items(Now) ->
ok,
?BANNED_TAB
).
insert_banned(Banned, Opts) ->
mria:dirty_write(?BANNED_TAB, Banned),
run_hooks(Banned, Opts).
run_hooks(Banned, #{clean := true}) ->
emqx_hooks:run('client.banned', [Banned]);
run_hooks(_Banned, _Opts) ->
ok.

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@ -121,7 +121,7 @@ handle_cast(
started_at = StartedAt,
detect_cnt = DetectCnt
},
#{window_time := WindTime, ban_time := Interval, clean_when_banned := Clean}},
#{window_time := WindTime, ban_time := Interval}},
State
) ->
case now_diff(StartedAt) < WindTime of
@ -145,7 +145,7 @@ handle_cast(
at = Now,
until = Now + (Interval div 1000)
},
{ok, _} = emqx_banned:create(Banned, #{clean => Clean}),
{ok, _} = emqx_banned:create(Banned),
ok;
false ->
?SLOG(

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@ -640,14 +640,6 @@ fields("flapping_detect") ->
default => "5m",
desc => ?DESC(flapping_detect_ban_time)
}
)},
{"clean_when_banned",
sc(
boolean(),
#{
default => false,
desc => ?DESC(flapping_detect_clean_when_banned)
}
)}
];
fields("force_shutdown") ->

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@ -34,8 +34,7 @@ init_per_suite(Config) ->
% 0.1s
window_time => 100,
%% 2s
ban_time => 2000,
clean_when_banned => false
ban_time => 2000
}
),
Config.

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@ -95,16 +95,4 @@ emqx_mgmt_api_banned {
zh: """封禁结束时间"""
}
}
clean {
desc {
en: """Clean retained/delayed messages when client is banned."""
"""Note: This may be expensive and only supports users banned by clientid."""
zh: """当客户端被禁时删除其保留、延迟消息"""
"""注意: 这个操作开销可能较大,且只支持通过 clientid 封禁的用户数据。"""
}
label {
en: """Clean when banned"""
zh: """被禁时清理消息"""
}
}
}

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@ -150,13 +150,6 @@ fields(ban) ->
desc => ?DESC(until),
required => false,
example => <<"2021-10-25T21:53:47+08:00">>
})},
{clean,
hoconsc:mk(boolean(), #{
desc => ?DESC(clean),
required => false,
default => false,
example => false
})}
].
@ -168,8 +161,7 @@ banned(post, #{body := Body}) ->
{error, Reason} ->
{400, 'BAD_REQUEST', list_to_binary(Reason)};
Ban ->
Opts = emqx_banned:parse_opts(Body),
case emqx_banned:create(Ban, Opts) of
case emqx_banned:create(Ban) of
{ok, Banned} ->
{200, format(Banned)};
{error, {already_exist, Old}} ->

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@ -23,7 +23,6 @@
-include_lib("emqx/include/logger.hrl").
-include_lib("snabbkaffe/include/snabbkaffe.hrl").
-include_lib("emqx/include/emqx_hooks.hrl").
-include_lib("stdlib/include/ms_transform.hrl").
%% Mnesia bootstrap
-export([mnesia/1]).
@ -32,8 +31,7 @@
-export([
start_link/0,
on_message_publish/1,
on_client_banned/1
on_message_publish/1
]).
%% gen_server callbacks
@ -46,7 +44,7 @@
code_change/3
]).
%% API
%% gen_server callbacks
-export([
load/0,
unload/0,
@ -59,9 +57,7 @@
delete_delayed_message/1,
delete_delayed_message/2,
cluster_list/1,
cluster_query/4,
clean_by_clientid/1,
do_clean_by_clientid/1
cluster_query/4
]).
-export([
@ -142,11 +138,6 @@ on_message_publish(
on_message_publish(Msg) ->
{ok, Msg}.
on_client_banned(#banned{who = {clientid, ClientId}}) ->
clean_by_clientid(ClientId);
on_client_banned(_) ->
ok.
%%--------------------------------------------------------------------
%% Start delayed publish server
%%--------------------------------------------------------------------
@ -237,7 +228,7 @@ get_delayed_message(Id) ->
get_delayed_message(Node, Id) when Node =:= node() ->
get_delayed_message(Id);
get_delayed_message(Node, Id) ->
emqx_delayed_proto_v2:get_delayed_message(Node, Id).
emqx_delayed_proto_v1:get_delayed_message(Node, Id).
-spec delete_delayed_message(binary()) -> with_id_return().
delete_delayed_message(Id) ->
@ -252,7 +243,7 @@ delete_delayed_message(Id) ->
delete_delayed_message(Node, Id) when Node =:= node() ->
delete_delayed_message(Id);
delete_delayed_message(Node, Id) ->
emqx_delayed_proto_v2:delete_delayed_message(Node, Id).
emqx_delayed_proto_v1:delete_delayed_message(Node, Id).
update_config(Config) ->
emqx_conf:update([delayed], Config, #{rawconf_with_defaults => true, override_to => cluster}).
@ -261,15 +252,6 @@ post_config_update(_KeyPath, _ConfigReq, NewConf, _OldConf, _AppEnvs) ->
Enable = maps:get(enable, NewConf, undefined),
load_or_unload(Enable).
clean_by_clientid(ClientId) ->
Nodes = mria_mnesia:running_nodes(),
emqx_delayed_proto_v2:clean_by_clientid(Nodes, ClientId).
do_clean_by_clientid(ClientId) ->
ets:select_delete(
?TAB, ets:fun2ms(fun(#delayed_message{msg = Msg}) -> Msg#message.from =:= ClientId end)
).
%%--------------------------------------------------------------------
%% gen_server callback
%%--------------------------------------------------------------------
@ -391,8 +373,23 @@ do_publish({Ts, _Id}, Now, Acc) when Ts > Now ->
Acc;
do_publish(Key = {Ts, _Id}, Now, Acc) when Ts =< Now ->
case mnesia:dirty_read(?TAB, Key) of
[] -> ok;
[#delayed_message{msg = Msg}] -> emqx_pool:async_submit(fun emqx:publish/1, [Msg])
[] ->
ok;
[#delayed_message{msg = Msg}] ->
case emqx_banned:look_up({clientid, Msg#message.from}) of
[] ->
emqx_pool:async_submit(fun emqx:publish/1, [Msg]);
_ ->
?tp(
notice,
ignore_delayed_message_publish,
#{
reason => "client is banned",
clienid => Msg#message.from
}
),
ok
end
end,
do_publish(mnesia:dirty_next(?TAB, Key), Now, [Key | Acc]).
@ -401,11 +398,9 @@ delayed_count() -> mnesia:table_info(?TAB, size).
do_load_or_unload(true, State) ->
emqx_hooks:put('message.publish', {?MODULE, on_message_publish, []}, ?HP_DELAY_PUB),
ok = emqx_hooks:put('client.banned', {?MODULE, on_client_banned, []}, ?HP_LOWEST),
State;
do_load_or_unload(false, #{publish_timer := PubTimer} = State) ->
emqx_hooks:del('message.publish', {?MODULE, on_message_publish}),
ok = emqx_hooks:del('client.banned', {?MODULE, on_client_banned}),
emqx_misc:cancel_timer(PubTimer),
ets:delete_all_objects(?TAB),
State#{publish_timer := undefined, publish_at := 0};

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@ -1,47 +0,0 @@
%%--------------------------------------------------------------------
%%Copyright (c) 2022 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_delayed_proto_v2).
-behaviour(emqx_bpapi).
-export([
introduced_in/0,
get_delayed_message/2,
delete_delayed_message/2,
clean_by_clientid/2
]).
-include_lib("emqx/include/bpapi.hrl").
-define(TIMEOUT, 15000).
introduced_in() ->
"5.0.10".
-spec get_delayed_message(node(), binary()) ->
emqx_delayed:with_id_return(map()) | emqx_rpc:badrpc().
get_delayed_message(Node, Id) ->
rpc:call(Node, emqx_delayed, get_delayed_message, [Id]).
-spec delete_delayed_message(node(), binary()) -> emqx_delayed:with_id_return() | emqx_rpc:badrpc().
delete_delayed_message(Node, Id) ->
rpc:call(Node, emqx_delayed, delete_delayed_message, [Id]).
-spec clean_by_clientid(list(node()), emqx_types:clientid()) ->
emqx_rpc:erpc_multicall().
clean_by_clientid(Nodes, ClientID) ->
erpc:multicall(Nodes, emqx_delayed, do_clean_by_clientid, [ClientID], ?TIMEOUT).

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@ -26,6 +26,7 @@
-include_lib("common_test/include/ct.hrl").
-include_lib("eunit/include/eunit.hrl").
-include_lib("emqx/include/emqx.hrl").
-include_lib("snabbkaffe/include/snabbkaffe.hrl").
%%--------------------------------------------------------------------
%% Setups
@ -36,7 +37,8 @@
}).
all() ->
emqx_common_test_helpers:all(?MODULE).
[t_banned_delayed].
%% emqx_common_test_helpers:all(?MODULE).
init_per_suite(Config) ->
ok = emqx_common_test_helpers:load_config(emqx_modules_schema, ?BASE_CONF, #{
@ -212,66 +214,37 @@ t_delayed_precision(_) ->
_ = on_message_publish(DelayedMsg0),
?assert(FutureDiff() =< MaxSpan).
t_banned_clean(_) ->
t_banned_delayed(_) ->
emqx:update_config([delayed, max_delayed_messages], 10000),
ClientId1 = <<"bc1">>,
ClientId2 = <<"bc2">>,
{ok, C1} = emqtt:start_link([{clientid, ClientId1}, {clean_start, true}, {proto_ver, v5}]),
{ok, _} = emqtt:connect(C1),
{ok, C2} = emqtt:start_link([{clientid, ClientId2}, {clean_start, true}, {proto_ver, v5}]),
{ok, _} = emqtt:connect(C2),
[
begin
emqtt:publish(
Conn,
<<"$delayed/60/0/", ClientId/binary>>,
<<"">>,
[{qos, 0}, {retain, false}]
),
emqtt:publish(
Conn,
<<"$delayed/60/1/", ClientId/binary>>,
<<"">>,
[{qos, 0}, {retain, false}]
)
end
|| {ClientId, Conn} <- lists:zip([ClientId1, ClientId2], [C1, C2])
],
emqtt:publish(
C2,
<<"$delayed/60/2/", ClientId2/binary>>,
<<"">>,
[{qos, 0}, {retain, false}]
),
timer:sleep(500),
?assertMatch(#{meta := #{count := 5}}, emqx_delayed:list(#{page => 1, limit => 10})),
Now = erlang:system_time(second),
Who = {clientid, ClientId2},
try
emqx_banned:create(#{
who => Who,
by => <<"test">>,
reason => <<"test">>,
at => Now,
until => Now + 120,
clean => true
}),
emqx_banned:create(#{
who => Who,
by => <<"test">>,
reason => <<"test">>,
at => Now,
until => Now + 120
}),
timer:sleep(500),
snabbkaffe:start_trace(),
lists:foreach(
fun(ClientId) ->
Msg = emqx_message:make(ClientId, <<"$delayed/1/bc">>, <<"payload">>),
emqx_delayed:on_message_publish(Msg)
end,
[ClientId1, ClientId1, ClientId1, ClientId2, ClientId2]
),
?assertMatch(#{meta := #{count := 2}}, emqx_delayed:list(#{page => 1, limit => 10}))
after
emqx_banned:delete(Who),
emqx_delayed:clean_by_clientid(ClientId1)
end,
timer:sleep(500),
ok = emqtt:disconnect(C1),
ok = emqtt:disconnect(C2).
timer:sleep(2000),
Trace = snabbkaffe:collect_trace(),
snabbkaffe:stop(),
emqx_banned:delete(Who),
mnesia:clear_table(emqx_delayed),
?assertEqual(2, length(?of_kind(ignore_delayed_message_publish, Trace))).
subscribe_proc() ->
Self = self(),

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@ -19,7 +19,6 @@
-behaviour(gen_server).
-include("emqx_retainer.hrl").
-include_lib("emqx/include/emqx.hrl").
-include_lib("emqx/include/logger.hrl").
-include_lib("emqx/include/emqx_hooks.hrl").
@ -27,8 +26,7 @@
-export([
on_session_subscribed/4,
on_message_publish/2,
on_client_banned/1
on_message_publish/2
]).
-export([
@ -41,7 +39,6 @@
get_expiry_time/1,
update_config/1,
clean/0,
clean_by_clientid/1,
delete/1,
page_read/3,
post_config_update/5,
@ -83,7 +80,6 @@
-callback match_messages(context(), topic(), cursor()) -> {ok, list(), cursor()}.
-callback clear_expired(context()) -> ok.
-callback clean(context()) -> ok.
-callback clean_by_clientid(context(), emqx_types:clientid()) -> ok.
-callback size(context()) -> non_neg_integer().
%%--------------------------------------------------------------------
@ -122,11 +118,6 @@ on_message_publish(Msg = #message{flags = #{retain := true}}, Context) ->
on_message_publish(Msg, _) ->
{ok, Msg}.
on_client_banned(#banned{who = {clientid, ClientId}}) ->
clean_by_clientid(ClientId);
on_client_banned(_) ->
ok.
%%--------------------------------------------------------------------
%% APIs
%%--------------------------------------------------------------------
@ -160,9 +151,6 @@ update_config(Conf) ->
clean() ->
call(?FUNCTION_NAME).
clean_by_clientid(ClientId) ->
call({?FUNCTION_NAME, ClientId}).
delete(Topic) ->
call({?FUNCTION_NAME, Topic}).
@ -219,9 +207,6 @@ handle_call({update_config, NewConf, OldConf}, _, State) ->
handle_call(clean, _, #{context := Context} = State) ->
clean(Context),
{reply, ok, State};
handle_call({clean_by_clientid, ClientId}, _, #{context := Context} = State) ->
clean_by_clientid(Context, ClientId),
{reply, ok, State};
handle_call({delete, Topic}, _, #{context := Context} = State) ->
delete_message(Context, Topic),
{reply, ok, State};
@ -313,11 +298,6 @@ clean(Context) ->
Mod = get_backend_module(),
Mod:clean(Context).
-spec clean_by_clientid(context(), emqx_types:clientid()) -> ok.
clean_by_clientid(Context, ClientId) ->
Mod = get_backend_module(),
Mod:clean_by_clientid(Context, ClientId).
-spec update_config(state(), hocons:config(), hocons:config()) -> state().
update_config(State, Conf, OldConf) ->
update_config(
@ -453,13 +433,11 @@ load(Context) ->
'session.subscribed', {?MODULE, on_session_subscribed, [Context]}, ?HP_RETAINER
),
ok = emqx_hooks:put('message.publish', {?MODULE, on_message_publish, [Context]}, ?HP_RETAINER),
ok = emqx_hooks:put('client.banned', {?MODULE, on_client_banned, []}, ?HP_LOWEST),
emqx_stats:update_interval(emqx_retainer_stats, fun ?MODULE:stats_fun/0),
ok.
unload() ->
ok = emqx_hooks:del('message.publish', {?MODULE, on_message_publish}),
ok = emqx_hooks:del('session.subscribed', {?MODULE, on_session_subscribed}),
ok = emqx_hooks:del('client.banned', {?MODULE, on_client_banned}),
emqx_stats:cancel_update(emqx_retainer_stats),
ok.

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@ -33,14 +33,13 @@
match_messages/3,
clear_expired/1,
clean/1,
clean_by_clientid/2,
size/1
]).
%% Internal exports (RPC)
-export([
do_store_retained/1,
do_clear/1,
do_clear_expired/0,
do_delete_message/1,
do_populate_index_meta/1,
do_reindex_batch/2
@ -62,8 +61,6 @@
-record(retained_index, {key, expiry_time}).
-record(retained_index_meta, {key, read_indices, write_indices, reindexing, extra}).
-type retained_message() :: #retained_message{}.
-define(META_KEY, index_meta).
-define(CLEAR_BATCH_SIZE, 1000).
@ -167,22 +164,18 @@ do_store_retained(#message{topic = Topic} = Msg) ->
end.
clear_expired(_) ->
NowMs = erlang:system_time(millisecond),
{atomic, _} = mria:transaction(?RETAINER_SHARD, fun ?MODULE:do_clear/1, [
fun(
#retained_message{expiry_time = ExpiryTime}
) ->
(ExpiryTime =/= 0) and (ExpiryTime < NowMs)
end
]),
{atomic, _} = mria:transaction(?RETAINER_SHARD, fun ?MODULE:do_clear_expired/0),
ok.
-spec do_clear(fun((retained_message()) -> boolean())) -> ok.
do_clear(Pred) ->
do_clear_expired() ->
NowMs = erlang:system_time(millisecond),
QH = qlc:q([
TopicTokens
|| #retained_message{topic = TopicTokens} = Data <- mnesia:table(?TAB_MESSAGE, [{lock, write}]),
Pred(Data)
|| #retained_message{
topic = TopicTokens,
expiry_time = ExpiryTime
} <- mnesia:table(?TAB_MESSAGE, [{lock, write}]),
(ExpiryTime =/= 0) and (ExpiryTime < NowMs)
]),
QC = qlc:cursor(QH),
clear_batch(db_indices(write), QC).
@ -270,14 +263,6 @@ clean(_) ->
_ = mria:clear_table(?TAB_INDEX),
ok.
clean_by_clientid(_, ClientId) ->
{atomic, _} = mria:transaction(?RETAINER_SHARD, fun ?MODULE:do_clear/1, [
fun(Msg) ->
Msg#retained_message.msg#message.from =:= ClientId
end
]),
ok.
size(_) ->
table_size().

View File

@ -626,66 +626,6 @@ t_get_basic_usage_info(_Config) ->
?assertEqual(#{retained_messages => 5}, emqx_retainer:get_basic_usage_info()),
ok.
t_banned_clean(_) ->
ClientId1 = <<"bc1">>,
ClientId2 = <<"bc2">>,
{ok, C1} = emqtt:start_link([{clientid, ClientId1}, {clean_start, true}, {proto_ver, v5}]),
{ok, _} = emqtt:connect(C1),
{ok, C2} = emqtt:start_link([{clientid, ClientId2}, {clean_start, true}, {proto_ver, v5}]),
{ok, _} = emqtt:connect(C2),
[
begin
emqtt:publish(
Conn,
<<"bc/0/", ClientId/binary>>,
<<"this is a retained message 0">>,
[{qos, 0}, {retain, true}]
),
emqtt:publish(
Conn,
<<"bc/1/", ClientId/binary>>,
<<"this is a retained message 1">>,
[{qos, 0}, {retain, true}]
)
end
|| {ClientId, Conn} <- lists:zip([ClientId1, ClientId2], [C1, C2])
],
emqtt:publish(
C2,
<<"bc/2/", ClientId2/binary>>,
<<"this is a retained message 2">>,
[{qos, 0}, {retain, true}]
),
timer:sleep(500),
{ok, List} = emqx_retainer:page_read(<<"bc/+/+">>, 1, 10),
?assertEqual(5, length(List)),
Now = erlang:system_time(second),
Who = {clientid, ClientId2},
emqx_banned:create(#{
who => Who,
by => <<"test">>,
reason => <<"test">>,
at => Now,
until => Now + 120,
clean => true
}),
timer:sleep(500),
{ok, List2} = emqx_retainer:page_read(<<"bc/#">>, 1, 10),
?assertEqual(2, length(List2)),
emqx_banned:delete(Who),
emqx_retainer:clean(),
timer:sleep(500),
ok = emqtt:disconnect(C1),
ok = emqtt:disconnect(C2).
%% test whether the app can start normally after disabling emqx_retainer
%% fix: https://github.com/emqx/emqx/pull/8911
test_disable_then_start(_Config) ->

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@ -4,7 +4,8 @@
- Improve `/nodes` API responsiveness [#9221](https://github.com/emqx/emqx/pull/9221).
- Allow clear retained/delayed data when client is banned [#9139](https://github.com/emqx/emqx/pull/9139).
- Improve the integration of the `banned` and the `delayed` feature [#9326](https://github.com/emqx/emqx/pull/9326).
Now when publishing a delayed message will check first if its source client is banned, if true, this publish will be ignored.
- Update `gen_rpc` library to version 3.0 [#9187](https://github.com/emqx/emqx/pull/9187).

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- 提升 `/nodes` API 响应速度 [#9221](https://github.com/emqx/emqx/pull/9221)。
- 支持拉黑客户端并从数据库中删除保留和延迟发布的消息 [#9139](https://github.com/emqx/emqx/pull/9139)。
- 增强 `封禁``延迟消息` 这两个功能的集成性 [#9326](https://github.com/emqx/emqx/pull/9326)。
现在发送延迟消息前,会先检查消息的来源客户端是否被封禁了,如果是,这条延迟消息将会被忽略。
- 升级 `gen_rpc` 库到 3.0 [#9187](https://github.com/emqx/emqx/pull/9187)。