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author | lain <lain@soykaf.club> | 2020-08-28 12:17:19 +0000 |
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committer | lain <lain@soykaf.club> | 2020-08-28 12:17:19 +0000 |
commit | 73dd5bdb7dcdf804bdbabcf632671d4de5042ebc (patch) | |
tree | efcb0b8e68f86d067de98a23f40a24c7dab79d2f /lib/pleroma/mfa/backup_codes.ex | |
parent | f891e2b2f1d1daa122b9856e4b660be394d31e34 (diff) | |
parent | b141e35d641e733dffe7bd6a45a5bbcafe586c56 (diff) |
Merge branch 'release/2.1.0' into 'stable'v2.1.0
Release/2.1.0
See merge request pleroma/pleroma!2927
Diffstat (limited to 'lib/pleroma/mfa/backup_codes.ex')
-rw-r--r-- | lib/pleroma/mfa/backup_codes.ex | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/lib/pleroma/mfa/backup_codes.ex b/lib/pleroma/mfa/backup_codes.ex new file mode 100644 index 000000000..9875310ff --- /dev/null +++ b/lib/pleroma/mfa/backup_codes.ex @@ -0,0 +1,31 @@ +# Pleroma: A lightweight social networking server +# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/> +# SPDX-License-Identifier: AGPL-3.0-only + +defmodule Pleroma.MFA.BackupCodes do + @moduledoc """ + This module contains functions for generating backup codes. + """ + alias Pleroma.Config + + @config_ns [:instance, :multi_factor_authentication, :backup_codes] + + @doc """ + Generates backup codes. + """ + @spec generate(Keyword.t()) :: list(String.t()) + def generate(opts \\ []) do + number_of_codes = Keyword.get(opts, :number_of_codes, default_backup_codes_number()) + code_length = Keyword.get(opts, :length, default_backup_codes_code_length()) + + Enum.map(1..number_of_codes, fn _ -> + :crypto.strong_rand_bytes(div(code_length, 2)) + |> Base.encode16(case: :lower) + end) + end + + defp default_backup_codes_number, do: Config.get(@config_ns ++ [:number], 5) + + defp default_backup_codes_code_length, + do: Config.get(@config_ns ++ [:length], 16) +end |