如何禁用 django-allauth 创建新帐户，但仍允许现有用户登录？ [复制]

我们已经运行一个网站一段时间了，该网站使用django-allauth https://github.com/pennersr/django-allauth使用以下任一方式进行身份验证：

• 传统的基于电子邮件的注册
• 谷歌登录
• 推特登录
• Facebook登入

...但现在我们希望阻止任何人创建新帐户，同时仍然允许以前使用任何这些方法创建帐户的人能够登录。是否有一个设置可以让我们这样做？我不清楚是否有任何一个这些记录的设置 http://django-allauth.readthedocs.org/en/latest/configuration.html将允许我们配置它。

与 django-allauth 相关的当前设置是：

INSTALLED_APPS = (
    'django.contrib.auth',
    ...
    'allauth',
    'allauth.account',
    'allauth.socialaccount',
    'allauth.socialaccount.providers.google',
    'allauth.socialaccount.providers.facebook',
    'allauth.socialaccount.providers.twitter',
    ...
)

AUTHENTICATION_BACKENDS = (
    # Needed to login by username in Django admin, regardless of `allauth`
    "django.contrib.auth.backends.ModelBackend",
    # `allauth` specific authentication methods, such as login by e-mail
    "allauth.account.auth_backends.AuthenticationBackend",
)

SOCIALACCOUNT_PROVIDERS = {
    'google': {'SCOPE': ['https://www.googleapis.com/auth/userinfo.profile'],
               'AUTH_PARAMS': {'access_type': 'online'}},
    'facebook': {'SCOPE': ['email',]},
}

LOGIN_REDIRECT_URL = '/'

ACCOUNT_EMAIL_VERIFICATION = "mandatory"
ACCOUNT_EMAIL_REQUIRED = True
ACCOUNT_USERNAME_REQUIRED = True
SOCIALACCOUNT_AUTO_SIGNUP = True

The 问题 rnevius 链接到 https://stackoverflow.com/questions/17923692/turn-off-user-social-registration-in-django-allauth为我解决了这个问题。为了添加更多细节，我创建了一个文件mysite/account_adapter.py包含：

from allauth.account.adapter import DefaultAccountAdapter

class NoNewUsersAccountAdapter(DefaultAccountAdapter):

    def is_open_for_signup(self, request):
        """
        Checks whether or not the site is open for signups.

        Next to simply returning True/False you can also intervene the
        regular flow by raising an ImmediateHttpResponse

        (Comment reproduced from the overridden method.)
        """
        return False

然后将其添加到mysite/settings.py:

ACCOUNT_ADAPTER = 'mysite.account_adapter.NoNewUsersAccountAdapter'