def match_allowed_values()

in cfn-lint-custom-rules/rules/AMSRequiredAttributeValues.py [0:0]

• 14 lines of code
• 7 McCabe index (conditional complexity)

    def match_allowed_values(self, attribute, attribute_value, resource_type):
        """Validate attribute as matching AMS rules


        Arguments:
            attribute {string} -- CloudFormation resource attribute type
            attribute_value {string} -- CloudFormation resource attribute value
            resource_type {string} -- CloudFormation resource type

        """

        check_attributes = set(self.required_attribute_values[resource_type])

        # Don't verify parameters or dynamic references
        if (
            attribute not in check_attributes
            or not isinstance(attribute_value, str)
            or re.match(REGEX_DYN_REF, attribute_value)
        ):
            return True

        for pattern in self.required_attribute_values[resource_type][attribute]:
            p = re.compile(pattern, re.IGNORECASE)
            m = p.match(attribute_value)
            if m:
                return True

        return False