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Authentication extension for the Ash Framework.
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Files
lib/ash_authentication/strategies/dynamic_oidc/verifier.ex
# SPDX-FileCopyrightText: 2022 Alembic Pty Ltd
#
# SPDX-License-Identifier: MIT
defmodule AshAuthentication.Strategy.DynamicOidc.Verifier do
@moduledoc """
DSL verifier for `dynamic_oidc` strategies.
Confirms that:
- The configured `connection_resource` has the
`AshAuthentication.OidcConnection` extension.
- The standard `redirect_uri` secret is present.
- The OAuth2-derived `prevent_hijacking?` guard fires when paired with
a password strategy without a confirmation add-on.
"""
alias AshAuthentication.Strategy.{DynamicOidc, OAuth2}
alias Spark.Error.DslError
import AshAuthentication.Validations
@doc false
@spec verify(DynamicOidc.t(), map) :: :ok | {:error, Exception.t()}
def verify(strategy, dsl_state) do
with :ok <- validate_secret(strategy, :redirect_uri),
:ok <- validate_connection_resource(strategy),
:ok <- OAuth2.Verifier.prevent_hijacking(dsl_state, strategy),
:ok <- OAuth2.Verifier.validate_confirmation_for_untrusted_match(dsl_state, strategy) do
oauth2_strategy_warnings(strategy, dsl_state)
end
end
defp validate_connection_resource(strategy) do
connection_resource = strategy.connection_resource
if connection_resource &&
AshAuthentication.OidcConnection in Spark.extensions(connection_resource) do
:ok
else
{:error,
DslError.exception(
path: [:authentication, :strategies, strategy.name, :connection_resource],
message:
"`#{inspect(connection_resource)}` must use the `AshAuthentication.OidcConnection` extension."
)}
end
end
end