電子郵件身份驗證後端

Django 的預設身份驗證適用於 username 和 password 欄位。電子郵件身份驗證後端將根據 email 和 password 對使用者進行身份驗證。

from django.contrib.auth import get_user_model

class EmailBackend(object):
    """
    Custom Email Backend to perform authentication via email
    """
    def authenticate(self, username=None, password=None):
        user_model = get_user_model() 
        try:
            user = user_model.objects.get(email=username)
            if user.check_password(password): # check valid password
                return user # return user to be authenticated
        except user_model.DoesNotExist: # no matching user exists 
            return None 

    def get_user(self, user_id):
        user_model = get_user_model() 
        try:
            return user_model.objects.get(pk=user_id)
        except user_model.DoesNotExist:
            return None

將此身份驗證後端新增到 AUTHENTICATION_BACKENDS 設定。

# settings.py
AUTHENTICATION_BACKENDS = (
    'my_app.backends.EmailBackend', 
    ... 
    )