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Handle unicodes in username + limit username length

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This commit is contained in:
PCoder 2020-03-06 12:17:23 +05:30
parent f539967a22
commit ea79fafb08
2 changed files with 31 additions and 4 deletions
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1
dynamicweb/settings/base.py
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@ -761,6 +761,7 @@ OTP_VERIFY_ENDPOINT = env('OTP_VERIFY_ENDPOINT')
FIRST_VM_ID_AFTER_EU_VAT = int_env('FIRST_VM_ID_AFTER_EU_VAT')
PRE_EU_VAT_RATE = float(env('PRE_EU_VAT_RATE'))
MAX_USERNAME_LENGTH = int_env('MAX_USERNAME_LENGTH', 18)
if DEBUG:
from .local import * # flake8: noqa

34
membership/models.py
View file

@ -77,28 +77,54 @@ def get_first_and_last_name(full_name):
return first_name, last_name
def limit_username_length(username):
"""
Limit the length of username before the addition of random numbers to
18 characters
:param username: the username to limit
:return:
"""
if len(username) > settings.MAX_USERNAME_LENGTH:
username = username[(len(username) - settings.MAX_USERNAME_LENGTH):]
return username.strip()
def assign_username(user):
if not user.username:
ldap_manager = LdapManager()
# Try to come up with a username
first_name, last_name = get_first_and_last_name(user.name)
user.username = unicodedata.normalize('NFKD', first_name + last_name)
user.username = unicodedata.normalize('NFKD', first_name + last_name).encode('ascii', 'ignore')
user.username = "".join([char for char in user.username if char.isalnum()]).lower()
if user.username.strip() == "":
try:
# the inferred username from name is empty, hence attempt
# inferring a username from email
logger.debug("Inferred username from name is empty. So, "
"inferring from email now.")
user.username = user.email[0:user.email.index("@")]
except Exception as ex:
logger.debug("Exception %s" % str(ex))
user.username = get_random_string(
allowed_chars='abcdefghijklmnopqrstuvwxyz'
)
exist = True
user_username = limit_username_length(user.username)
while exist:
# Check if it exists
exist, entries = ldap_manager.check_user_exists(user.username)
exist, entries = ldap_manager.check_user_exists(user_username)
if exist:
# If username exists in ldap, come up with a new user name and check it again
user.username = user.username + str(random.randint(0, 2 ** 10))
user.username = user_username + str(random.randint(0, 2 ** 10))
else:
# If username does not exists in ldap, try to save it in database
try:
user.save()
except IntegrityError:
# If username exists in database then come up with a new username
user.username = user.username + str(random.randint(0, 2 ** 10))
user.username = user_username + str(random.randint(0, 2 ** 10))
exist = True