45 lines
1.3 KiB
Elixir
45 lines
1.3 KiB
Elixir
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.Web.Auth.TOTPAuthenticator do
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alias Pleroma.MFA
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alias Pleroma.MFA.TOTP
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alias Pleroma.User
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@doc "Verify code or check backup code."
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@spec verify(String.t(), User.t()) ::
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{:ok, :pass} | {:error, :invalid_token | :invalid_secret_and_token}
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def verify(
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token,
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%User{
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multi_factor_authentication_settings:
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%{enabled: true, totp: %{secret: secret, confirmed: true}} = _
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} = _user
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)
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when is_binary(token) and byte_size(token) > 0 do
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TOTP.validate_token(secret, token)
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end
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def verify(_, _), do: {:error, :invalid_token}
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@spec verify_recovery_code(User.t(), String.t()) ::
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{:ok, :pass} | {:error, :invalid_token}
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def verify_recovery_code(
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%User{multi_factor_authentication_settings: %{enabled: true, backup_codes: codes}} = user,
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code
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)
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when is_list(codes) and is_binary(code) do
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hash_code = Enum.find(codes, fn hash -> Pbkdf2.verify_pass(code, hash) end)
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if hash_code do
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MFA.invalidate_backup_code(user, hash_code)
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{:ok, :pass}
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else
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{:error, :invalid_token}
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end
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end
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def verify_recovery_code(_, _), do: {:error, :invalid_token}
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end
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