emqx/apps/emqx_authz/src/emqx_authz_api_mnesia.erl

434 lines
16 KiB
Erlang

%%--------------------------------------------------------------------
%% Copyright (c) 2020-2022 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_authz_api_mnesia).
-behaviour(minirest_api).
-include("emqx_authz.hrl").
-include_lib("emqx/include/logger.hrl").
-include_lib("typerefl/include/types.hrl").
-define(FORMAT_USERNAME_FUN, {?MODULE, format_by_username}).
-define(FORMAT_CLIENTID_FUN, {?MODULE, format_by_clientid}).
-export([ api_spec/0
, paths/0
, schema/1
, fields/1
]).
%% operation funs
-export([ users/2
, clients/2
, user/2
, client/2
, all/2
, purge/2
]).
-export([ format_by_username/1
, format_by_clientid/1]).
-define(BAD_REQUEST, 'BAD_REQUEST').
-define(NOT_FOUND, 'NOT_FOUND').
-define(TYPE_REF, ref).
-define(TYPE_ARRAY, array).
-define(PAGE_QUERY_EXAMPLE, example_in_data).
-define(PUT_MAP_EXAMPLE, in_put_requestBody).
-define(POST_ARRAY_EXAMPLE, in_post_requestBody).
api_spec() ->
emqx_dashboard_swagger:spec(?MODULE, #{check_schema => true}).
paths() ->
[ "/authorization/sources/built-in-database/username"
, "/authorization/sources/built-in-database/clientid"
, "/authorization/sources/built-in-database/username/:username"
, "/authorization/sources/built-in-database/clientid/:clientid"
, "/authorization/sources/built-in-database/all"
, "/authorization/sources/built-in-database/purge-all"].
%%--------------------------------------------------------------------
%% Schema for each URI
%%--------------------------------------------------------------------
schema("/authorization/sources/built-in-database/username") ->
#{
'operationId' => users,
get => #{
tags => [<<"authorization">>],
description => <<"Show the list of record for username">>,
parameters => [ hoconsc:ref(emqx_dashboard_swagger, page)
, hoconsc:ref(emqx_dashboard_swagger, limit)],
responses => #{
200 => swagger_with_example( {username_response_data, ?TYPE_REF}
, {username, ?PAGE_QUERY_EXAMPLE})
}
},
post => #{
tags => [<<"authorization">>],
description => <<"Add new records for username">>,
'requestBody' => swagger_with_example( {rules_for_username, ?TYPE_ARRAY}
, {username, ?POST_ARRAY_EXAMPLE}),
responses => #{
204 => <<"Created">>,
400 => emqx_dashboard_swagger:error_codes( [?BAD_REQUEST]
, <<"Bad username or bad rule schema">>)
}
}
};
schema("/authorization/sources/built-in-database/clientid") ->
#{
'operationId' => clients,
get => #{
tags => [<<"authorization">>],
description => <<"Show the list of record for clientid">>,
parameters => [ hoconsc:ref(emqx_dashboard_swagger, page)
, hoconsc:ref(emqx_dashboard_swagger, limit)],
responses => #{
200 => swagger_with_example( {clientid_response_data, ?TYPE_REF}
, {clientid, ?PAGE_QUERY_EXAMPLE})
}
},
post => #{
tags => [<<"authorization">>],
description => <<"Add new records for clientid">>,
'requestBody' => swagger_with_example( {rules_for_clientid, ?TYPE_ARRAY}
, {clientid, ?POST_ARRAY_EXAMPLE}),
responses => #{
204 => <<"Created">>,
400 => emqx_dashboard_swagger:error_codes( [?BAD_REQUEST]
, <<"Bad clientid or bad rule schema">>)
}
}
};
schema("/authorization/sources/built-in-database/username/:username") ->
#{
'operationId' => user,
get => #{
tags => [<<"authorization">>],
description => <<"Get record info for username">>,
parameters => [hoconsc:ref(username)],
responses => #{
200 => swagger_with_example( {rules_for_username, ?TYPE_REF}
, {username, ?PUT_MAP_EXAMPLE}),
404 => emqx_dashboard_swagger:error_codes([?NOT_FOUND], <<"Not Found">>)
}
},
put => #{
tags => [<<"authorization">>],
description => <<"Set record for username">>,
parameters => [hoconsc:ref(username)],
'requestBody' => swagger_with_example( {rules_for_username, ?TYPE_REF}
, {username, ?PUT_MAP_EXAMPLE}),
responses => #{
204 => <<"Updated">>,
400 => emqx_dashboard_swagger:error_codes( [?BAD_REQUEST]
, <<"Bad username or bad rule schema">>)
}
},
delete => #{
tags => [<<"authorization">>],
description => <<"Delete one record for username">>,
parameters => [hoconsc:ref(username)],
responses => #{
204 => <<"Deleted">>,
400 => emqx_dashboard_swagger:error_codes([?BAD_REQUEST], <<"Bad username">>)
}
}
};
schema("/authorization/sources/built-in-database/clientid/:clientid") ->
#{
'operationId' => client,
get => #{
tags => [<<"authorization">>],
description => <<"Get record info for clientid">>,
parameters => [hoconsc:ref(clientid)],
responses => #{
200 => swagger_with_example( {rules_for_clientid, ?TYPE_REF}
, {clientid, ?PUT_MAP_EXAMPLE}),
404 => emqx_dashboard_swagger:error_codes([?NOT_FOUND], <<"Not Found">>)
}
},
put => #{
tags => [<<"authorization">>],
description => <<"Set record for clientid">>,
parameters => [hoconsc:ref(clientid)],
'requestBody' => swagger_with_example( {rules_for_clientid, ?TYPE_REF}
, {clientid, ?PUT_MAP_EXAMPLE}),
responses => #{
204 => <<"Updated">>,
400 => emqx_dashboard_swagger:error_codes(
[?BAD_REQUEST], <<"Bad clientid or bad rule schema">>)
}
},
delete => #{
tags => [<<"authorization">>],
description => <<"Delete one record for clientid">>,
parameters => [hoconsc:ref(clientid)],
responses => #{
204 => <<"Deleted">>,
400 => emqx_dashboard_swagger:error_codes([?BAD_REQUEST], <<"Bad clientid">>)
}
}
};
schema("/authorization/sources/built-in-database/all") ->
#{
'operationId' => all,
get => #{
tags => [<<"authorization">>],
description => <<"Show the list of rules for all">>,
responses => #{
200 => swagger_with_example({rules_for_all, ?TYPE_REF}, {all, ?PUT_MAP_EXAMPLE})
}
},
put => #{
tags => [<<"authorization">>],
description => <<"Set the list of rules for all">>,
'requestBody' =>
swagger_with_example({rules_for_all, ?TYPE_REF}, {all, ?PUT_MAP_EXAMPLE}),
responses => #{
204 => <<"Created">>,
400 => emqx_dashboard_swagger:error_codes([?BAD_REQUEST], <<"Bad rule schema">>)
}
}
};
schema("/authorization/sources/built-in-database/purge-all") ->
#{
'operationId' => purge,
delete => #{
tags => [<<"authorization">>],
description => <<"Purge all records">>,
responses => #{
204 => <<"Deleted">>,
400 => emqx_dashboard_swagger:error_codes([?BAD_REQUEST], <<"Bad Request">>)
}
}
}.
fields(rule_item) ->
[ {topic, hoconsc:mk(string(),
#{ required => true
, desc => <<"Rule on specific topic">>
, example => <<"test/topic/1">>
})}
, {permission, hoconsc:mk(hoconsc:enum([allow, deny]),
#{ desc => <<"Permission">>
, required => true
, example => allow
})}
, {action, hoconsc:mk(hoconsc:enum([publish, subscribe, all]),
#{ required => true
, example => publish
, desc => <<"Authorized action">>
})}
];
fields(clientid) ->
[ {clientid, hoconsc:mk(binary(),
#{ in => path
, required => true
, desc => <<"ClientID">>
, example => <<"client1">>
})}
];
fields(username) ->
[ {username, hoconsc:mk(binary(),
#{ in => path
, required => true
, desc => <<"Username">>
, example => <<"user1">>})}
];
fields(rules_for_username) ->
[ {rules, hoconsc:mk(hoconsc:array(hoconsc:ref(rule_item)), #{})}
] ++ fields(username);
fields(username_response_data) ->
[ {data, hoconsc:mk(hoconsc:array(hoconsc:ref(rules_for_username)), #{})}
, {meta, hoconsc:ref(meta)}
];
fields(rules_for_clientid) ->
[ {rules, hoconsc:mk(hoconsc:array(hoconsc:ref(rule_item)), #{})}
] ++ fields(clientid);
fields(clientid_response_data) ->
[ {data, hoconsc:mk(hoconsc:array(hoconsc:ref(rules_for_clientid)), #{})}
, {meta, hoconsc:ref(meta)}
];
fields(rules_for_all) ->
[ {rules, hoconsc:mk(hoconsc:array(hoconsc:ref(rule_item)), #{})}
];
fields(meta) ->
emqx_dashboard_swagger:fields(page)
++ emqx_dashboard_swagger:fields(limit)
++ [{count, hoconsc:mk(integer(), #{example => 1})}].
%%--------------------------------------------------------------------
%% HTTP API
%%--------------------------------------------------------------------
users(get, #{query_string := PageParams}) ->
{Table, MatchSpec} = emqx_authz_mnesia:list_username_rules(),
{200, emqx_mgmt_api:paginate(Table, MatchSpec, PageParams, ?FORMAT_USERNAME_FUN)};
users(post, #{body := Body}) when is_list(Body) ->
lists:foreach(fun(#{<<"username">> := Username, <<"rules">> := Rules}) ->
emqx_authz_mnesia:store_rules({username, Username}, format_rules(Rules))
end, Body),
{204}.
clients(get, #{query_string := PageParams}) ->
{Table, MatchSpec} = emqx_authz_mnesia:list_clientid_rules(),
{200, emqx_mgmt_api:paginate(Table, MatchSpec, PageParams, ?FORMAT_CLIENTID_FUN)};
clients(post, #{body := Body}) when is_list(Body) ->
lists:foreach(fun(#{<<"clientid">> := Clientid, <<"rules">> := Rules}) ->
emqx_authz_mnesia:store_rules({clientid, Clientid}, format_rules(Rules))
end, Body),
{204}.
user(get, #{bindings := #{username := Username}}) ->
case emqx_authz_mnesia:get_rules({username, Username}) of
not_found -> {404, #{code => <<"NOT_FOUND">>, message => <<"Not Found">>}};
{ok, Rules} ->
{200, #{username => Username,
rules => [ #{topic => Topic,
action => Action,
permission => Permission
} || {Permission, Action, Topic} <- Rules]}
}
end;
user(put, #{bindings := #{username := Username},
body := #{<<"username">> := Username, <<"rules">> := Rules}}) ->
emqx_authz_mnesia:store_rules({username, Username}, format_rules(Rules)),
{204};
user(delete, #{bindings := #{username := Username}}) ->
emqx_authz_mnesia:delete_rules({username, Username}),
{204}.
client(get, #{bindings := #{clientid := Clientid}}) ->
case emqx_authz_mnesia:get_rules({clientid, Clientid}) of
not_found -> {404, #{code => <<"NOT_FOUND">>, message => <<"Not Found">>}};
{ok, Rules} ->
{200, #{clientid => Clientid,
rules => [ #{topic => Topic,
action => Action,
permission => Permission
} || {Permission, Action, Topic} <- Rules]}
}
end;
client(put, #{bindings := #{clientid := Clientid},
body := #{<<"clientid">> := Clientid, <<"rules">> := Rules}}) ->
emqx_authz_mnesia:store_rules({clientid, Clientid}, format_rules(Rules)),
{204};
client(delete, #{bindings := #{clientid := Clientid}}) ->
emqx_authz_mnesia:delete_rules({clientid, Clientid}),
{204}.
all(get, _) ->
case emqx_authz_mnesia:get_rules(all) of
not_found ->
{200, #{rules => []}};
{ok, Rules} ->
{200, #{rules => [ #{topic => Topic,
action => Action,
permission => Permission
} || {Permission, Action, Topic} <- Rules]}
}
end;
all(put, #{body := #{<<"rules">> := Rules}}) ->
emqx_authz_mnesia:store_rules(all, format_rules(Rules)),
{204}.
purge(delete, _) ->
case emqx_authz_api_sources:get_raw_source(<<"built-in-database">>) of
[#{<<"enable">> := false}] ->
ok = emqx_authz_mnesia:purge_rules(),
{204};
[#{<<"enable">> := true}] ->
{400, #{code => <<"BAD_REQUEST">>,
message =>
<<"'built-in-database' type source must be disabled before purge.">>}};
[] ->
{404, #{code => <<"BAD_REQUEST">>,
message => <<"'built-in-database' type source is not found.">>
}}
end.
format_rules(Rules) when is_list(Rules) ->
lists:foldl(fun(#{<<"topic">> := Topic,
<<"action">> := Action,
<<"permission">> := Permission
}, AccIn) when ?PUBSUB(Action)
andalso ?ALLOW_DENY(Permission) ->
AccIn ++ [{ atom(Permission), atom(Action), Topic }]
end, [], Rules).
format_by_username([{username, Username}, {rules, Rules}]) ->
#{username => Username,
rules => [ #{topic => Topic,
action => Action,
permission => Permission
} || {Permission, Action, Topic} <- Rules]
}.
format_by_clientid([{clientid, Clientid}, {rules, Rules}]) ->
#{clientid => Clientid,
rules => [ #{topic => Topic,
action => Action,
permission => Permission
} || {Permission, Action, Topic} <- Rules]
}.
atom(B) when is_binary(B) ->
try binary_to_existing_atom(B, utf8)
catch
_Error:_Expection -> binary_to_atom(B)
end;
atom(A) when is_atom(A) -> A.
%%--------------------------------------------------------------------
%% Internal functions
%%--------------------------------------------------------------------
swagger_with_example({Ref, TypeP}, {_Name, _Type} = Example) ->
emqx_dashboard_swagger:schema_with_examples(
case TypeP of
?TYPE_REF -> hoconsc:ref(?MODULE, Ref);
?TYPE_ARRAY -> hoconsc:array(hoconsc:ref(?MODULE, Ref))
end,
rules_example(Example)).
rules_example({ExampleName, ExampleType}) ->
{Summary, Example} =
case ExampleName of
username -> {<<"Username">>, ?USERNAME_RULES_EXAMPLE};
clientid -> {<<"ClientID">>, ?CLIENTID_RULES_EXAMPLE};
all -> {<<"All">>, ?ALL_RULES_EXAMPLE}
end,
Value =
case ExampleType of
?PAGE_QUERY_EXAMPLE -> #{
data => [Example],
meta => ?META_EXAMPLE
};
?PUT_MAP_EXAMPLE ->
Example;
?POST_ARRAY_EXAMPLE ->
[Example]
end,
#{
'password-based:built-in-database' => #{
summary => Summary,
value => Value
}
}.