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django-mailbox/build/lib/django_mailbox/transports/gmail.py
2022-07-27 10:31:01 +02:00

57 lines
1.9 KiB
Python

import logging
from django_mailbox.transports.imap import ImapTransport
logger = logging.getLogger(__name__)
class GmailImapTransport(ImapTransport):
def connect(self, username, password):
# Try to use oauth2 first. It's much safer
try:
self._connect_oauth(username)
except (TypeError, ValueError) as e:
logger.warning("Couldn't do oauth2 because %s" % e)
self.server = self.transport(self.hostname, self.port)
typ, msg = self.server.login(username, password)
self.server.select()
def _connect_oauth(self, username):
# username should be an email address that has already been authorized
# for gmail access
try:
from django_mailbox.google_utils import (
get_google_access_token,
fetch_user_info,
AccessTokenNotFound,
)
except ImportError:
raise ValueError(
"Install python-social-auth to use oauth2 auth for gmail"
)
access_token = None
while access_token is None:
try:
access_token = get_google_access_token(username)
google_email_address = fetch_user_info(username)['email']
except TypeError:
# This means that the google process took too long
# Trying again is the right thing to do
pass
except AccessTokenNotFound:
raise ValueError(
"No Token available in python-social-auth for %s" % (
username
)
)
auth_string = 'user={}\1auth=Bearer {}\1\1'.format(
google_email_address,
access_token
)
self.server = self.transport(self.hostname, self.port)
self.server.authenticate('XOAUTH2', lambda x: auth_string)
self.server.select()