def test_invariant_encode_decode(self):
"""
Tests that decoding an encoded address returns the original pair.
"""
from_email, to_email = '*****@*****.**', '*****@*****.**'
self.assertEqual(
verp.decode(verp.encode(from_email, to_email)),
(from_email, to_email))
def test_decode(self):
"""
Tests the decode method.
"""
self.assertEqual(
verp.decode('[email protected]'),
('*****@*****.**', '*****@*****.**'))
self.assertEqual(
verp.decode('[email protected]'),
('*****@*****.**', '[email protected]'))
self.assertEqual(
verp.decode('[email protected]'),
('*****@*****.**', '*****@*****.**'))
self.assertEqual(
verp.decode('[email protected]'),
('*****@*****.**', 'user+!%-:@[][email protected]'))
def test_envelope_from_address(self):
"""
Tests that the envelope from address is created specially for each user
in order to track their bounced messages.
"""
self.subscribe_user_to_package('*****@*****.**', self.package_name)
self.run_dispatch()
msg = mail.outbox[0]
bounce_address, user_address = verp.decode(msg.from_email)
self.assertTrue(bounce_address.startswith('bounces+'))
self.assertEqual(user_address, msg.to[0])
def handle_bounces(sent_to_address):
"""
Handles a received bounce message.
:param sent_to_address: The envelope-to (return path) address to which the
bounced email was returned.
:type sent_to_address: string
"""
bounce_email, user_email = verp.decode(sent_to_address)
match = re.match(r"^bounces\+(\d{8})@" + PTS_FQDN, bounce_email)
if not match:
# Invalid bounce address
logger.error("Invalid bounce address " + bounce_email)
return
try:
date = datetime.strptime(match.group(1), "%Y%m%d")
except ValueError:
# Invalid bounce address
logger.error("Invalid bounce address " + bounce_email)
return
EmailUserBounceStats.objects.add_bounce_for_user(email=user_email, date=date)
logger.info("Logged bounce for {email} on {date}".format(email=user_email, date=date))
user = EmailUserBounceStats.objects.get(user_email__email=user_email)
if user.has_too_many_bounces():
logger.info("{email} has too many bounces".format(email=user_email))
email_body = pts_render_to_string(
"dispatch/unsubscribed-due-to-bounces-email.txt",
{"email": user_email, "packages": user.packagename_set.all()},
)
EmailMessage(
subject="All your subscriptions from the PTS have been cancelled",
from_email=settings.PTS_BOUNCES_LIKELY_SPAM_EMAIL,
to=[user_email],
cc=[settings.PTS_CONTACT_EMAIL],
body=email_body,
headers={"From": settings.PTS_CONTACT_EMAIL},
).send()
user.unsubscribe_all()
