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@@ -1,57 +0,0 @@
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-%%--------------------------------------------------------------------
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-%% Copyright (c) 2020-2021 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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-
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--module(emqx_plugin_libs_id).
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-
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--export([gen/0, gen/1]).
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-
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--define(SHORT, 8).
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-
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-%%--------------------------------------------------------------------
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-%% APIs
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-%%--------------------------------------------------------------------
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--spec(gen() -> list()).
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-gen() ->
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- gen(?SHORT).
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-
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--spec(gen(integer()) -> list()).
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-gen(Len) ->
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- BitLen = Len * 4,
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- <<R:BitLen>> = crypto:strong_rand_bytes(Len div 2),
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- int_to_hex(R, Len).
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-
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-%%------------------------------------------------------------------------------
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-%% Internal Functions
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-%%------------------------------------------------------------------------------
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-
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-int_to_hex(I, N) when is_integer(I), I >= 0 ->
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- int_to_hex([], I, 1, N).
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-
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-int_to_hex(L, I, Count, N)
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- when I < 16 ->
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- pad([int_to_hex(I) | L], N - Count);
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-int_to_hex(L, I, Count, N) ->
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- int_to_hex([int_to_hex(I rem 16) | L], I div 16, Count + 1, N).
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-
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-int_to_hex(I) when 0 =< I, I =< 9 ->
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- I + $0;
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-int_to_hex(I) when 10 =< I, I =< 15 ->
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- (I - 10) + $a.
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-
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-pad(L, 0) ->
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- L;
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-pad(L, Count) ->
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- pad([$0 | L], Count - 1).
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