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ash_authentication
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Authentication extension for the Ash Framework.
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Files
lib/ash_authentication/token_resource/is_revoked.ex
# SPDX-FileCopyrightText: 2022 Alembic Pty Ltd
#
# SPDX-License-Identifier: MIT
defmodule AshAuthentication.TokenResource.IsRevoked do
@moduledoc """
Checks for the existence of a revocation token for the provided token revocation token for the provided token.
"""
use Ash.Resource.Actions.Implementation
alias Ash.Error.Action.InvalidArgument
alias AshAuthentication.{Errors.InvalidToken, Jwt}
@impl true
def run(%{resource: resource, arguments: %{jti: jti}}, _, context) when is_binary(jti) do
resource
|> Ash.Query.do_filter(purpose: "revocation", jti: jti)
|> Ash.Query.set_context(%{
private: %{ash_authentication?: true}
})
|> Ash.Query.set_tenant(context.tenant)
|> Ash.exists()
end
def run(%{arguments: %{token: token}} = input, opts, context) when is_binary(token) do
case Jwt.peek(token) do
{:ok, %{"jti" => jti}} -> run(%{input | arguments: %{jti: jti}}, opts, context)
{:ok, _} -> {:error, InvalidToken.exception(type: :revocation)}
{:error, reason} -> {:error, reason}
end
end
def run(_input, _, _) do
{:error,
InvalidArgument.exception(
field: :jti,
message: "At least one of `jti` or `token` arguments must be present"
)}
end
end