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fix warning and deprecated crypto:hmac method with new OTP release #2

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fix warning and deprecated crypto:hmac method with new OTP release #2

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2 changes: 2 additions & 0 deletions .travis.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -9,3 +9,5 @@ otp_release:
- 17.5
- 18.3
- 19.2
- 23.3
- 24.3
19 changes: 16 additions & 3 deletions src/radius_codec.erl
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Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,7 @@
-export([encode_response/3, encode_attributes/1]).
-export([encode_request/2]).

-compile(export_all).
%%-compile(export_all).

-include("radius.hrl").

Expand All @@ -30,7 +30,7 @@ decode_packet(Bin, Secret) ->
A1 = lists:keyreplace("Message-Authenticator", 1, A, {"Message-Authenticator", <<0:128>>}),
{ok, A2} = encode_attributes(A1),
Packet1 = [Code, Ident, <<Length:16>>, Auth, A2],
case crypto:hmac(md5, Secret, Packet1) =:= Value of
case hmac(Secret, Packet1) =:= Value of
true ->
{ok, Packet};
false ->
Expand Down Expand Up @@ -118,7 +118,7 @@ encode_response(Request, Response, Secret) ->

Length = <<(20 + byte_size(A2)):16>>,
Packet = list_to_binary([Code, Ident, Length, ReqAuth, A2]),
MA = crypto:hmac(md5, Secret, Packet),
MA = hmac(Secret, Packet),

A3 = A ++ [{"Message-Authenticator", MA}],
{ok, A4} = encode_attributes(A3),
Expand Down Expand Up @@ -292,3 +292,16 @@ lookup_value(Code, Name, Attrs) ->
false -> undefined
end
end.

-ifdef(OTP_RELEASE).
-if(?OTP_RELEASE >= 23).
hmac(Key, Str) ->
crypto:mac(hmac, md5, Key, Str).
-else.
hmac(Key, Str) ->
crypto:hmac(md5, Key, Str).
-endif.
-else.
hmac(Key, Str) ->
crypto:hmac(md5, Key, Str).
-endif.