129 lines
3.7 KiB
Erlang
129 lines
3.7 KiB
Erlang
%%--------------------------------------------------------------------
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%% Copyright (c) 2021-2022 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_authz_utils).
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-include_lib("emqx/include/emqx_placeholder.hrl").
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-include_lib("emqx_authz.hrl").
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-export([
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cleanup_resources/0,
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make_resource_id/1,
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create_resource/2,
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update_config/2,
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parse_deep/2,
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parse_sql/3,
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render_deep/2,
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render_sql_params/2
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]).
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%%------------------------------------------------------------------------------
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%% APIs
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%%------------------------------------------------------------------------------
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create_resource(Module, Config) ->
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ResourceID = make_resource_id(Module),
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case
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emqx_resource:create_local(
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ResourceID,
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?RESOURCE_GROUP,
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Module,
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Config,
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#{}
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)
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of
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{ok, already_created} -> {ok, ResourceID};
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{ok, _} -> {ok, ResourceID};
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{error, Reason} -> {error, Reason}
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end.
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cleanup_resources() ->
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lists:foreach(
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fun emqx_resource:remove_local/1,
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emqx_resource:list_group_instances(?RESOURCE_GROUP)
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).
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make_resource_id(Name) ->
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NameBin = bin(Name),
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emqx_resource:generate_id(NameBin).
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update_config(Path, ConfigRequest) ->
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emqx_conf:update(Path, ConfigRequest, #{
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rawconf_with_defaults => true,
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override_to => cluster
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}).
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parse_deep(Template, PlaceHolders) ->
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emqx_placeholder:preproc_tmpl_deep(Template, #{placeholders => PlaceHolders}).
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parse_sql(Template, ReplaceWith, PlaceHolders) ->
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emqx_placeholder:preproc_sql(
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Template,
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#{
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replace_with => ReplaceWith,
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placeholders => PlaceHolders
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}
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).
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render_deep(Template, Values) ->
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emqx_placeholder:proc_tmpl_deep(
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Template,
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client_vars(Values),
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#{return => full_binary, var_trans => fun handle_var/2}
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).
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render_sql_params(ParamList, Values) ->
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emqx_placeholder:proc_tmpl(
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ParamList,
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client_vars(Values),
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#{return => rawlist, var_trans => fun handle_sql_var/2}
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).
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%%------------------------------------------------------------------------------
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%% Internal functions
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%%------------------------------------------------------------------------------
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client_vars(ClientInfo) ->
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maps:from_list(
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lists:map(
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fun convert_client_var/1,
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maps:to_list(ClientInfo)
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)
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).
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convert_client_var({cn, CN}) -> {cert_common_name, CN};
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convert_client_var({dn, DN}) -> {cert_subject, DN};
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convert_client_var({protocol, Proto}) -> {proto_name, Proto};
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convert_client_var(Other) -> Other.
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handle_var({var, _Name}, undefined) ->
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"undefined";
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handle_var({var, <<"peerhost">>}, IpAddr) ->
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inet_parse:ntoa(IpAddr);
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handle_var(_Name, Value) ->
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emqx_placeholder:bin(Value).
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handle_sql_var({var, _Name}, undefined) ->
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"undefined";
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handle_sql_var({var, <<"peerhost">>}, IpAddr) ->
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inet_parse:ntoa(IpAddr);
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handle_sql_var(_Name, Value) ->
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emqx_placeholder:sql_data(Value).
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bin(A) when is_atom(A) -> atom_to_binary(A, utf8);
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bin(L) when is_list(L) -> list_to_binary(L);
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bin(X) -> X.
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