import urllib.parse as urllib_parse from email.utils import parseaddr from aws_lambda_powertools import Logger from aws_lambda_powertools.utilities.data_classes import SESEvent, event_source from aws_lambda_powertools.utilities.typing import LambdaContext from layercake.dynamodb import DynamoDBPersistenceLayer, KeyPair, SortKey from boto3clients import dynamodb_client from config import USER_TABLE from ses_utils import get_header_value logger = Logger(__name__) user_layer = DynamoDBPersistenceLayer(USER_TABLE, dynamodb_client) @logger.inject_lambda_context @event_source(data_class=SESEvent) def lambda_handler(event: SESEvent, context: LambdaContext) -> dict: ses = event.record.ses to = urllib_parse.unquote(ses.receipt.recipients[0]).lower() name, email_from = parseaddr(get_header_value(ses.mail.headers, 'from')) org_id = user_layer.collection.get_item( KeyPair('email', SortKey(to, path_spec='user_id')), raise_on_error=False, default={}, ) if not org_id: return {'disposition': 'STOP_RULE_SET'} print( { 'id': f'mailbox#org#{org_id}', 'sk': ses.mail.message_id, } ) return {'disposition': 'CONTINUE'}