Django區分不正確的登錄資訊和登錄時的非活動用戶

目前，我在我的網站中添加了一種在注冊時進行電子郵件確認的方法。我看到的是，當用戶注冊但尚未點擊確認鏈接并嘗試登錄時，我無法區分錯誤的用戶/密碼和未確認的用戶。

這是我的登錄功能：

def loginUser(request):
    if request.user.is_authenticated:
        return redirect("decks:index")
    if request.method == "POST":
        form = AuthenticationForm(request, data=request.POST)
        if form.is_valid():
            username = form.cleaned_data.get('username')
            password = form.cleaned_data.get('password')
            user = authenticate(username=username, password=password)
            if user is not None and user.is_active:
                login(request, user)
                return redirect("myApp:portal")
            elif user is not None:
                messages.error(request, "Email is not confirmed.")
            else:
                messages.error(request, "Invalid username or password.")
        else:
            messages.error(request, "Invalid username or password.")
    form = AuthenticationForm()
    return render(request, "myApp/login.html", context = {'login_form': form})

問題是在運行form.is_valid()函式authenticate時/home/nowork/.local/lib/python3.8/site-packages/django/contrib/auth ModelBackend執行：

def authenticate(self, request, username=None, password=None, **kwargs):
    if username is None:
        username = kwargs.get(UserModel.USERNAME_FIELD)
    if username is None or password is None:
        return
    try:
        user = UserModel._default_manager.get_by_natural_key(username)
    except UserModel.DoesNotExist:
        # Run the default password hasher once to reduce the timing
        # difference between an existing and a nonexistent user (#20760).
        UserModel().set_password(password)
    else:
        if user.check_password(password) and self.user_can_authenticate(user):
            return user

因此，當標志為form.is_valid()時，永遠不會為真。所以我無法判斷用戶 密碼的組合是否不正確或用戶尚未確認。is_activeFalse

我不確定這樣做的正確方法是什么，我想這樣做：

User.objects.get(username=request.POST['username'])

用戶可以以某種方式利用它嗎？有沒有更好的方法來實作這一點？

使用 python3 和 Django 4.0

uj5u.com熱心網友回復：

你可以自己CustomLoginBackend做

from django.contrib.auth import get_user_model

class CustomLoginBackend(object):

    def authenticate(self, request, username, password):
        User = get_user_model()
        try:
            user = User.objects.using(db_name).get(username=username)
        except User.DoesNotExist:
            return None
        else:
            if user.check_password(password):
                return user
        return None

然后在你的views.py

def loginUser(request):
    if request.user.is_authenticated:
        return redirect("decks:index")
    if request.method == "POST":
        form = AuthenticationForm(request, data=request.POST)
        if form.is_valid():
            username = form.cleaned_data.get('username')
            password = form.cleaned_data.get('password')
            user = authenticate(username=username, password=password)
            if user is not None:
                if user.is_active == True:
                    login(request, user)
                    return redirect("myApp:portal")
                else:
                    messages.error(request, "Email is not confirmed.")
            else:
                messages.error(request, "Invalid username or password.")
        else:
            messages.error(request, "Invalid username or password.")
    form = AuthenticationForm()
    return render(request, "myApp/login.html", context = {'login_form': form})

最后別忘了添加AUTHENTICATION_BACKENDS你的settings.pyas

AUTHENTICATION_BACKENDS = ['path_to_your.CustomLoginBackend ',]

標籤：Python django django-身份验证

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