[GitHub] feluelle commented on a change in pull request #3661: [AIRFLOW-2780] Adds IMAP Hook to interact with a mail server

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feluelle commented on a change in pull request #3661: [AIRFLOW-2780] Adds IMAP Hook to interact with a mail server
URL: https://github.com/apache/incubator-airflow/pull/3661#discussion_r217041753
 
 

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 File path: airflow/contrib/hooks/imap_hook.py
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 @@ -0,0 +1,262 @@
+# -*- coding: utf-8 -*-
+#
+# Licensed 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
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import email
+import imaplib
+import re
+
+from airflow import LoggingMixin
+from airflow.hooks.base_hook import BaseHook
+
+
+class ImapHook(BaseHook):
+    """
+    This hook connects to a mail server by using the imap protocol.
+
+    :param imap_conn_id: The connection id that contains the information
+                         used to authenticate the client.
+                         The default value is 'imap_default'.
+    :type imap_conn_id: str
+    """
+
+    def __init__(self, imap_conn_id='imap_default'):
+        super(ImapHook, self).__init__(imap_conn_id)
+        self.conn = self.get_connection(imap_conn_id)
+        self.mail_client = imaplib.IMAP4_SSL(self.conn.host)
+
+    def __enter__(self):
+        self.mail_client.login(self.conn.login, self.conn.password)
+        return self
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        self.mail_client.logout()
 
 Review comment:
   According to [this](https://docs.python.org/2/library/imaplib.html#imaplib.IMAP4.logout) it shutdowns the connection to the server.

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