def normalize_email(email):
"""
Return a normalized form of the email address:
- lowercase
- applying host-specific rules for domains hosted by Google, Microsoft, Yahoo, Fastmail
"""
return email_normalize.normalize(email.strip(), resolve=False)
def test_invalid_domain_part(self):
address = '{}@{}'.format(uuid.uuid4(), uuid.uuid4())
result = email_normalize.normalize(address)
self.assertIsInstance(result, email_normalize.Result)
self.assertEqual(result.address, address)
self.assertEqual(result.normalized_address, address)
self.assertListEqual(result.mx_records, [])
self.assertIsNone(result.mailbox_provider)
def normalize(addresses):
logging.debug(addresses)
result = []
for address in addresses:
try:
cleaned = email_normalize.normalize(address, resolve=False)
if isinstance(cleaned, str):
result.append(cleaned)
except:
pass
return set(result)
def _perform_test(self, address: str, normalized: str,
mx_records: typing.List[typing.Tuple[int, str]],
provider: typing.Optional[str]):
with mock.patch('email_normalize.Normalizer.mx_records') as mxr:
mxr.return_value = mx_records
result = email_normalize.normalize(address)
self.assertIsInstance(result, email_normalize.Result)
self.assertEqual(result.address, address)
self.assertEqual(result.normalized_address, normalized)
self.assertListEqual(result.mx_records, mx_records)
self.assertEqual(result.mailbox_provider, provider)
def clean_email(self, *args, **kwargs):
address = self.cleaned_data['email']
norm_addr = email_normalize.normalize(address)
_, domain = norm_addr.rsplit('@', 1)
if domain in utils.get_config('email_host_blacklist'):
raise ValidationError(
('Accounts can not be resistered with email addresses '
'provided by this host.'),
code='BAD_HOST')
if Poster.objects.filter(normalized_email=norm_addr).count():
raise ValidationError(
'Email address is already associated with an account',
code='TOO_SIMILAR')
return address
def test_normalization(self):
self.assertEqual(normalize('*****@*****.**'),
'*****@*****.**')
def test_normalization_tld_b(self):
self.assertEqual(normalize('*****@*****.**'),
'*****@*****.**')
def test_normalization(self):
self.assertEqual(normalize('*****@*****.**'),
'*****@*****.**')
def test_no_resolution(self):
self.assertEqual(normalize('"Me!" <*****@*****.**>', False),
'*****@*****.**')
def test_mx_verification_normalization(self):
self.assertEqual(normalize('*****@*****.**'),
'*****@*****.**')
def test_gmail_domain_part(self):
self.assertEqual(normalize('"Me!" <*****@*****.**>'),
'*****@*****.**')
def test_fastmail_variation_b(self):
self.assertEqual(normalize('*****@*****.**'),
'*****@*****.**')
def test_fastmail_variation_a(self):
self.assertEqual(normalize('*****@*****.**'),
'*****@*****.**')
def set_normalized_email(sender, instance, **kwargs):
if instance.email:
instance.normalized_email = email_normalize.normalize(instance.email)
def normalize_email(apps, schema_editor):
Poster = apps.get_model('ISS', 'Poster')
for poster in Poster.objects.all():
poster.normalized_email = normalize(poster.email)
poster.save()
# pip install email-normalize
from email_normalize import normalize
# from email_normalizer import normalize
normalized = normalize('*****@*****.**')
print(normalized)
normalized = normalize('*****@*****.**')
print(normalized)
normalized = normalize('*****@*****.**')
print(normalized)
