def _addMethod()

in scripts/Authorizer/lambda_function.py [0:0]
31 lines of code
9 McCabe index (conditional complexity)

    def _addMethod(self, effect, verb, resource, conditions):
        """Adds a method to the internal lists of allowed or denied methods. Each object in
        the internal list contains a resource ARN and a condition statement. The condition
        statement can be null."""
        session = boto3.session.Session()
        aws_region = session.region_name

        if verb != "*" and not hasattr(HttpVerb, verb):
            raise NameError("Invalid HTTP verb " + verb + ". Allowed verbs in HttpVerb class")
        resourcePattern = re.compile(self.pathRegex)
        if not resourcePattern.match(resource):
            raise NameError("Invalid resource path: " + resource + ". Path should match " + self.pathRegex)

        if aws_region == 'us-gov-west-1' or aws_region == 'us-gov-east-1':
            arn_partition = 'aws-us-gov'
        else:
            arn_partition = 'aws'

        if resource[:1] == "/":
            resource = resource[1:]

        resourceArn = ("arn:" + arn_partition + ":execute-api:" +
            self.region + ":" +
            self.awsAccountId + ":" +
            self.restApiId + "/" +
            self.stage + "/" +
            verb + "/" +
            resource)

        if effect.lower() == "allow":
            self.allowMethods.append({
                'resourceArn': resourceArn,
                'conditions': conditions
            })
        elif effect.lower() == "deny":
            self.denyMethods.append({
                'resourceArn': resourceArn,
                'conditions': conditions
            })