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nk20/apps/registration/tokens.py

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# Copyright (C) 2018-2020 by BDE ENS Paris-Saclay
# SPDX-License-Identifier: GPL-3.0-or-later
# Copied from https://gitlab.crans.org/bombar/codeflix/-/blob/master/codeflix/codeflix/tokens.py
from django.contrib.auth.tokens import PasswordResetTokenGenerator
class AccountActivationTokenGenerator(PasswordResetTokenGenerator):
"""
Create a unique token generator to confirm email addresses.
"""
def _make_hash_value(self, user, timestamp):
"""
Hash the user's primary key and some user state that's sure to change
after an account validation to produce a token that invalidated when
it's used:
1. The user.profile.email_confirmed field will change upon an account
validation.
2. The last_login field will usually be updated very shortly after
an account validation.
Failing those things, settings.PASSWORD_RESET_TIMEOUT_DAYS eventually
invalidates the token.
"""
# Truncate microseconds so that tokens are consistent even if the
# database doesn't support microseconds.
login_timestamp = '' if user.last_login is None else user.last_login.replace(microsecond=0, tzinfo=None)
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return str(user.pk) + str(user.email) + str(user.profile.email_confirmed)\
+ str(login_timestamp) + str(timestamp)
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email_validation_token = AccountActivationTokenGenerator()