Question

我正在尝试创建自定义登录表单。以下是我到目前为止的情况。我的问题是，无论我做什么，登录都不会进行身份验证。即使我有正确的电子邮件和密码我总是得到：

请输入正确的用户名和密码。请注意，这两个字段可能区分大小写。

我认为这是因为我正在检查电子邮件和密码。

* 这是我的表单。 *

class EmailAuthenticationForm(AuthenticationForm):
    username = forms.EmailField(label=_('Email Address'))
    redirect_url = forms.CharField(
        widget=forms.HiddenInput, required=False)

    def __init__(self, host=None, *args, **kwargs):
        self.host = host
        super(EmailAuthenticationForm, self).__init__(*args, **kwargs)

这是我的观点。**

class AccountAuthView(FormView):
    template_name = 'accounts/login.html'
    form_class = EmailAuthenticationForm
    redirect_field_name = 'next'

    def get_form_class(self):
        return self.form_class

    def form_valid(self, form):
        auth_login(self.request, form.get_user())
        return HttpResponseRedirect(form.cleaned_data['redirect_url'])

    def get(self, request, *args, **kwargs):
        if request.user.is_authenticated():
            return HttpResponseRedirect(settings.LOGIN_REDIRECT_URL)
        return super(AccountAuthView, self).get(
            request, *args, **kwargs)

Answer 1

是的，这可以很容易地完成，首先创建一个身份验证后端：

<强> backend.py

from django.contrib.auth import get_user_model


class EmailAuthBackend(object):
    """
    Email Authentication Backend
    """

    def authenticate(self, username=None, password=None):
        """ Authenticate a user based on email address as the user name. """
        try:
            user = get_user_model().objects.get(email=username)
            if user.check_password(password):
                return user
        except get_user_model().DoesNotExist:
            return None

然后在 settings.py：

中

AUTHENTICATION_BACKENDS = ('backends.EmailAuthBackend',)

最后确保您的表单包含电子邮件字段：

<form action="." method="post">
  {% csrf_token %}
  <input type="hidden" name="next" value="{{ next }}" />
  {{ form.non_field_errors }}
  {% for field in form %}
    <div class="field-wrapper">
      <div class="label-wrapper">
        {% if field.name == "username" %}
          Email address
        {% else %}
          {{ field.label_tag }}
        {% endif %}
        {% if field.field.required %}<span class="required">*</span>{% endif %}
      </div>
      <div class="value-wrapper">
        {{ field }}
        {{ field.errors }}
      </div>
    </div>
  {% endfor %}
  <div class="submit-wrapper">
    <input type="submit" value="Sign In" />
  </div>
</form>

Answer 2

Django有Full Example来展示如何进行自定义身份验证。

Django自定义登录从不验证为什么？

2 个答案: