Source code for

# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.
"""This module allows you to transfer mail attachments from a mail server into s3 bucket."""
from __future__ import annotations

from typing import TYPE_CHECKING, Sequence

from airflow.models import BaseOperator
from import S3Hook
from airflow.providers.imap.hooks.imap import ImapHook

    from airflow.utils.context import Context

[docs]class ImapAttachmentToS3Operator(BaseOperator): """ Transfers a mail attachment from a mail server into s3 bucket. .. seealso:: For more information on how to use this operator, take a look at the guide: :ref:`howto/operator:ImapAttachmentToS3Operator` :param imap_attachment_name: The file name of the mail attachment that you want to transfer. :param s3_bucket: The targeted s3 bucket. This is the S3 bucket where the file will be downloaded. :param s3_key: The destination file name in the s3 bucket for the attachment. :param imap_check_regex: If set checks the `imap_attachment_name` for a regular expression. :param imap_mail_folder: The folder on the mail server to look for the attachment. :param imap_mail_filter: If set other than 'All' only specific mails will be checked. See :py:meth:`` for details. :param s3_overwrite: If set overwrites the s3 key if already exists. :param imap_conn_id: The reference to the connection details of the mail server. :param aws_conn_id: AWS connection to use. """
[docs] template_fields: Sequence[str] = ("imap_attachment_name", "s3_key", "imap_mail_filter")
def __init__( self, *, imap_attachment_name: str, s3_bucket: str, s3_key: str, imap_check_regex: bool = False, imap_mail_folder: str = "INBOX", imap_mail_filter: str = "All", s3_overwrite: bool = False, imap_conn_id: str = "imap_default", aws_conn_id: str = "aws_default", **kwargs, ) -> None: super().__init__(**kwargs) self.imap_attachment_name = imap_attachment_name self.s3_bucket = s3_bucket self.s3_key = s3_key self.imap_check_regex = imap_check_regex self.imap_mail_folder = imap_mail_folder self.imap_mail_filter = imap_mail_filter self.s3_overwrite = s3_overwrite self.imap_conn_id = imap_conn_id self.aws_conn_id = aws_conn_id
[docs] def execute(self, context: Context) -> None: """ Execute the transfer from the email server (via imap) into s3. :param context: The context while executing. """ "Transferring mail attachment %s from mail server via imap to s3 key %s...", self.imap_attachment_name, self.s3_key, ) with ImapHook(imap_conn_id=self.imap_conn_id) as imap_hook: imap_mail_attachments = imap_hook.retrieve_mail_attachments( name=self.imap_attachment_name, check_regex=self.imap_check_regex, latest_only=True, mail_folder=self.imap_mail_folder, mail_filter=self.imap_mail_filter, ) s3_hook = S3Hook(aws_conn_id=self.aws_conn_id) s3_hook.load_bytes( bytes_data=imap_mail_attachments[0][1], bucket_name=self.s3_bucket, key=self.s3_key, replace=self.s3_overwrite, )

Was this entry helpful?