""" Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. SPDX-License-Identifier: MIT-0 """ from typing import Any from cfnlint.jsonschema import ValidationError, Validator from cfnlint.rules.functions._BaseFn import BaseFn class DynamicReferenceSecureString(BaseFn): id = "E1027" shortdesc = "Check dynamic references secure strings are in supported locations" description = ( "Dynamic References Secure Strings are only supported for a small set of" " resource properties. Validate that they are being used in the correct" " location when checking values and Fn::Sub in resource properties. Currently" " doesn't check outputs, maps, conditions, parameters, and descriptions." ) source_url = "https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/dynamic-references.html" tags = ["functions", "dynamic reference"] def __init__(self): """Init""" super().__init__() self.exceptions = [ "Resources/AWS::DirectoryService::MicrosoftAD/Properties/Password", "Resources/AWS::DirectoryService::SimpleAD/Properties/Password", "Resources/AWS::ElastiCache::ReplicationGroup/Properties/AuthToken", "Resources/AWS::IAM::User/Properties/LoginProfile/Password", "Resources/AWS::KinesisFirehose::DeliveryStream/Properties/RedshiftDestinationConfiguration/Password", "Resources/AWS::OpsWorks::App/Properties/AppSource/Password", "Resources/AWS::OpsWorks::Stack/Properties/RdsDbInstances/*/DbPassword", "Resources/AWS::OpsWorks::Stack/Properties/CustomCookbooksSource/Password", "Resources/AWS::RDS::DBCluster/Properties/MasterUserPassword", "Resources/AWS::RDS::DBInstance/Properties/MasterUserPassword", "Resources/AWS::Redshift::Cluster/Properties/MasterUserPassword", ] def validate(self, validator: Validator, s: Any, instance: Any, schema: Any): if validator.context.path.cfn_path_string in self.exceptions: return yield ValidationError( ( f"Dynamic reference {instance!r} to SSM secure strings " "can only be used in resource properties" ), rule=self, )