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fix for TLS 1.3 #1011

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fix for TLS 1.3 #1011

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b300be9
fix for TLS 1.3
Feb 8, 2021
786b5be
change tlsv1.3 keyfind in options
Feb 8, 2021
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15 changes: 12 additions & 3 deletions lib/plug/ssl.ex
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Original file line number Diff line number Diff line change
Expand Up @@ -242,9 +242,18 @@ defmodule Plug.SSL do
end

defp set_secure_defaults(options) do
options
|> Keyword.put_new(:secure_renegotiate, true)
|> Keyword.put_new(:reuse_sessions, true)
if List.keyfind(options, :versions, 0) == {:versions, [:"tlsv1.3"]} do
# secure_renegotiate and reuse_sessions options are not supported
# by the OTP SSL module when earlier versions of TLS are not being used.
# (i.e. TLS1.2 or earlier versions must be specified as it's not supported in TLS1.3)
options
|> Keyword.delete(:secure_renegotiate)
|> Keyword.delete(:reuse_sessions)
else
options
|> Keyword.put_new(:secure_renegotiate, true)
|> Keyword.put_new(:reuse_sessions, true)
end
end

defp configure_managed_tls(options) do
Expand Down