| """ |
| 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, |
| ) |
|
|
