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ash_authentication
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Authentication extension for the Ash Framework.
Security advisory:
This version has known vulnerabilities.
View advisories
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Files
lib/ash_authentication/strategies/totp/generate_secret_change.ex
# SPDX-FileCopyrightText: 2022 Alembic Pty Ltd
#
# SPDX-License-Identifier: MIT
defmodule AshAuthentication.Strategy.Totp.GenerateSecretChange do
@moduledoc """
Generates a new TOTP secret for a user.
This change is used by the setup action to generate a cryptographically
secure random secret for TOTP authentication.
"""
use Ash.Resource.Change
alias Ash.Changeset
alias Ash.Error.Framework.AssumptionFailed
alias AshAuthentication.Info
@doc false
@impl true
def change(changeset, _context, _opts) do
case Info.strategy_for_action(changeset.resource, changeset.action.name) do
{:ok, strategy} ->
do_change(changeset, strategy)
:error ->
raise AssumptionFailed,
message: "Action does not correlate with an authentication strategy"
end
end
defp do_change(changeset, strategy) do
changeset
|> Changeset.set_context(%{private: %{ash_authentication?: true}})
|> Changeset.before_action(fn changeset ->
changeset
|> Changeset.force_change_attribute(
strategy.secret_field,
NimbleTOTP.secret(strategy.secret_length)
)
end)
end
end