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"""
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This module allows importing AbstractBaseUser even when django.contrib.auth is
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not in INSTALLED_APPS.
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"""
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from __future__ import unicode_literals
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from django.contrib.auth.hashers import (
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check_password, is_password_usable, make_password,
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)
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from django.db import models
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from django.utils.crypto import salted_hmac
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from django.utils.encoding import python_2_unicode_compatible
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from django.utils.translation import ugettext_lazy as _
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@python_2_unicode_compatible
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class AbstractBaseUser(models.Model):
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password = models.CharField(_('password'), max_length=128)
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last_login = models.DateTimeField(_('last login'), blank=True, null=True)
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is_active = True
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REQUIRED_FIELDS = []
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class Meta:
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abstract = True
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def get_username(self):
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"Return the identifying username for this User"
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return getattr(self, self.USERNAME_FIELD)
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def __str__(self):
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return self.get_username()
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def natural_key(self):
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return (self.get_username(),)
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def is_anonymous(self):
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"""
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Always returns False. This is a way of comparing User objects to
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anonymous users.
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"""
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return False
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def is_authenticated(self):
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"""
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Always return True. This is a way to tell if the user has been
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authenticated in templates.
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"""
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return True
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def set_password(self, raw_password):
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self.password = make_password(raw_password)
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def check_password(self, raw_password):
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"""
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Returns a boolean of whether the raw_password was correct. Handles
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hashing formats behind the scenes.
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"""
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def setter(raw_password):
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self.set_password(raw_password)
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self.save(update_fields=["password"])
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return check_password(raw_password, self.password, setter)
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def set_unusable_password(self):
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# Sets a value that will never be a valid hash
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self.password = make_password(None)
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def has_usable_password(self):
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return is_password_usable(self.password)
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def get_full_name(self):
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raise NotImplementedError('subclasses of AbstractBaseUser must provide a get_full_name() method')
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def get_short_name(self):
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raise NotImplementedError('subclasses of AbstractBaseUser must provide a get_short_name() method.')
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def get_session_auth_hash(self):
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"""
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Returns an HMAC of the password field.
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"""
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key_salt = "django.contrib.auth.models.AbstractBaseUser.get_session_auth_hash"
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return salted_hmac(key_salt, self.password).hexdigest()
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