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How to use clean_email method in Kiwi

Best Python code snippet using Kiwi_python

backend.py

Source:backend.py

1from django.contrib.auth import get_user_model2from django.contrib.auth.backends import ModelBackend3from django.core.exceptions import ImproperlyConfigured4User = get_user_model()5def normalise_email(email):6    """7    The local part of an email address is case-sensitive, the domain part8    isn't.  This function lowercases the host and should be used in all email9    handling.10    """11    clean_email = email.strip()12    if '@' in clean_email:13        local, host = clean_email.split('@')14        return local + '@' + host.lower()15    return clean_email16if hasattr(User, 'REQUIRED_FIELDS'):17    if not (User.USERNAME_FIELD == 'email' or 'email' in User.REQUIRED_FIELDS):18        raise ImproperlyConfigured(19            "EmailBackend: Your User model must have an email"20            " field with blank=False")21class EmailBackend(ModelBackend):22    """23    Custom auth backend that uses an email address and password24    For this to work, the User model must have an 'email' field25    """26    def _authenticate(self, request, email=None, password=None, *args, **kwargs):27        if email is None:28            if 'username' not in kwargs or kwargs['username'] is None:29                return None30            clean_email = normalise_email(kwargs['username'])31        else:32            clean_email = normalise_email(email)33        # Check if we're dealing with an email address34        if '@' not in clean_email:35            return None36        # Since Django doesn't enforce emails to be unique, we look for all37        # matching users and try to authenticate them all. Note that we38        # intentionally allow multiple users with the same email address39        # (has been a requirement in larger system deployments),40        # we just enforce that they don't share the same password.41        # We make a case-insensitive match when looking for emails.42        matching_users = User.objects.filter(email__iexact=clean_email)43        authenticated_users = [44            user for user in matching_users if (user.check_password(password) and self.user_can_authenticate(user))]45        if len(authenticated_users) == 1:46            # Happy path47            return authenticated_users[0]48        elif len(authenticated_users) > 1:49            # This is the problem scenario where we have multiple users with50            # the same email address AND password. We can't safely authenticate51            # either.52            raise User.MultipleObjectsReturned(53                "There are multiple users with the given email address and "54                "password")55        return None56    def authenticate(self, *args, **kwargs):...

forms.py

Source:forms.py

...28class RegisterForm(UserCreationForm):29    class Meta:30        model = Account31        fields = ('email','username','password1','password2','currency')32    def clean_email(self):33        if self.is_valid():34            clean_email = self.cleaned_data['email']35            try:36                exist_email = Account.objects.get(email = clean_email)37                if exist_email:38                    raise forms.ValidationError('{} has been registered by others'.format(clean_email))39            except:40                return clean_email41class UpdateDetailForm(forms.ModelForm):42    class Meta:43        model = Account44        fields = ('email','username')45    def clean_email(self):46        if self.is_valid():47            email = self.cleaned_data.get('email')48            try:49                email_exist = Account.objects.get(email = email).exclude(pk = self.instance.id)50                if email_exist:51                    raise forms.ValidationError('Email of "{}" has been registered'.format(email))52            except:...

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