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"""
Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
SPDX-License-Identifier: MIT-0
"""
from cfnlint.rules import CloudFormationLintRule, RuleMatch


class InterfaceConfiguration(CloudFormationLintRule):
    """Check if Metadata Interface Configuration are configured correctly"""

    id = "E4001"
    shortdesc = "Metadata Interface have appropriate properties"
    description = "Metadata Interface properties are properly configured"
    source_url = "https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-cloudformation-interface.html"
    tags = ["metadata"]

    valid_keys = ["ParameterGroups", "ParameterLabels"]

    def match(self, cfn):
        """Check CloudFormation Metadata Interface Configuration"""

        matches = []

        strinterface = "AWS::CloudFormation::Interface"

        metadata_obj = cfn.template.get("Metadata", {})
        if metadata_obj:
            interfaces = metadata_obj.get(strinterface, {})
            if isinstance(interfaces, dict):
                for interface in interfaces:
                    if interface not in self.valid_keys:
                        message = "Metadata Interface has invalid property {0}"
                        matches.append(
                            RuleMatch(
                                ["Metadata", strinterface, interface],
                                message.format(interface),
                            )
                        )
                parameter_groups = interfaces.get("ParameterGroups", [])
                for index, value in enumerate(parameter_groups):
                    for key in value:
                        if key not in ["Label", "Parameters"]:
                            message = "Metadata Interface has invalid property {0}"
                            matches.append(
                                RuleMatch(
                                    [
                                        "Metadata",
                                        strinterface,
                                        "ParameterGroups",
                                        index,
                                        key,
                                    ],
                                    message.format(key),
                                )
                            )

        return matches

Filemanager

Name Type Size Permission Actions
__pycache__ Folder 0755
Config.py File 1.58 KB 0644
InterfaceConfiguration.py File 2.3 KB 0644
InterfaceParameterExists.py File 3.16 KB 0644
__init__.py File 106 B 0644