63 lines
2.2 KiB
Erlang
63 lines
2.2 KiB
Erlang
%%-----------------------------------------------------------------------------
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%% Copyright (c) 2012-2015, Feng Lee <feng@emqtt.io>
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%%
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%% Permission is hereby granted, free of charge, to any person obtaining a copy
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%% of this software and associated documentation files (the "Software"), to deal
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%% in the Software without restriction, including without limitation the rights
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%% to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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%% copies of the Software, and to permit persons to whom the Software is
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%% furnished to do so, subject to the following conditions:
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%%
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%% The above copyright notice and this permission notice shall be included in all
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%% copies or substantial portions of the Software.
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%%
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%% THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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%% IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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%% FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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%% AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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%% LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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%% OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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%% SOFTWARE.
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%%------------------------------------------------------------------------------
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-module(emqtt_auth_internal).
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-author('feng@emqtt.io').
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-include("emqtt.hrl").
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-export([init/1,
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add/2,
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check/2,
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delete/1]).
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init(_Opts) ->
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mnesia:create_table(mqtt_user, [
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{ram_copies, [node()]},
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{attributes, record_info(fields, mqtt_user)}]),
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mnesia:add_table_copy(mqtt_user, node(), ram_copies),
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ok.
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check(undefined, _) -> false;
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check(_, undefined) -> false;
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check(Username, Password) when is_binary(Username), is_binary(Password) ->
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PasswdHash = crypto:hash(md5, Password),
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case mnesia:dirty_read(mqtt_user, Username) of
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[#mqtt_user{passwdhash=PasswdHash}] -> true;
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_ -> false
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end.
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add(Username, Password) when is_binary(Username) and is_binary(Password) ->
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mnesia:dirty_write(
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#mqtt_user{
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username=Username,
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passwdhash=crypto:hash(md5, Password)
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}
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).
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delete(Username) when is_binary(Username) ->
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mnesia:dirty_delete(mqtt_user, Username).
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