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Use email addresses for user name

/ Published in: Python
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  1. from django.contrib.auth.models import User
  2. from django.core.validators import email_re
  3.  
  4. class BasicBackend:
  5.     def get_user(self, user_id):
  6.         try:
  7.             return User.objects.get(pk=user_id)
  8.         except User.DoesNotExist:
  9.             return None
  10.  
  11. class EmailBackend(BasicBackend):
  12.     def authenticate(self, username=None, password=None):
  13.         #If username is an email address, then try to pull it up
  14.         if email_re.search(username):
  15.             try:
  16.                 user = User.objects.get(email=username)
  17.             except User.DoesNotExist:
  18.                 return None
  19.         else:
  20.             #We have a non-email address username we should try username
  21.             try:
  22.                 user = User.objects.get(username=username)
  23.             except User.DoesNotExist:
  24.                 return None
  25.         if user.check_password(password):
  26.             return user

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