philo/contrib/waldo/forms.py

   1 from datetime import date
   2
   3 from django import forms
   4 from django.conf import settings
   5 from django.contrib.auth import authenticate
   6 from django.contrib.auth.forms import AuthenticationForm, UserCreationForm
   7 from django.contrib.auth.models import User
   8 from django.core.exceptions import ValidationError
   9 from django.utils.translation import ugettext_lazy as _
  10
  11 from philo.contrib.waldo.tokens import REGISTRATION_TIMEOUT_DAYS
  12
  13
  14 class EmailInput(forms.TextInput):
  15         input_type = 'email'
  16
  17
  18 class RegistrationForm(UserCreationForm):
  19         email = forms.EmailField(widget=EmailInput)
  20         try:
  21                 from recaptcha_django import ReCaptchaField
  22         except ImportError:
  23                 pass
  24         else:
  25                 if 'recaptcha_django.middleware.ReCaptchaMiddleware' in settings.MIDDLEWARE_CLASSES:
  26                         recaptcha = ReCaptchaField()
  27
  28         def clean_username(self):
  29                 username = self.cleaned_data['username']
  30
  31                 # Trivial case: if the username doesn't exist, go for it!
  32                 try:
  33                         user = User.objects.get(username=username)
  34                 except User.DoesNotExist:
  35                         return username
  36
  37                 if not user.is_active and (date.today() - user.date_joined.date()).days > REGISTRATION_TIMEOUT_DAYS and user.last_login == user.date_joined:
  38                         # Then this is a user who has not confirmed their registration and whose time is up. Delete the old user and return the username.
  39                         user.delete()
  40                         return username
  41
  42                 raise ValidationError(_("A user with that username already exists."))
  43
  44         def clean_email(self):
  45                 if User.objects.filter(email__iexact=self.cleaned_data['email']):
  46                         raise ValidationError(_('This email is already in use. Please supply a different email address'))
  47                 return self.cleaned_data['email']
  48
  49         def save(self):
  50                 username = self.cleaned_data['username']
  51                 email = self.cleaned_data['email']
  52                 password = self.cleaned_data['password1']
  53                 new_user = User.objects.create_user(username, email, password)
  54                 new_user.is_active = False
  55                 new_user.save()
  56                 return new_user
  57
  58
  59 class UserAccountForm(forms.ModelForm):
  60         first_name = User._meta.get_field('first_name').formfield(required=True)
  61         last_name = User._meta.get_field('last_name').formfield(required=True)
  62         email = User._meta.get_field('email').formfield(required=True, widget=EmailInput)
  63
  64         def __init__(self, user, *args, **kwargs):
  65                 kwargs['instance'] = user
  66                 super(UserAccountForm, self).__init__(*args, **kwargs)
  67
  68         class Meta:
  69                 model = User
  70                 fields = ('first_name', 'last_name', 'email')
  71
  72
  73 class WaldoAuthenticationForm(AuthenticationForm):
  74         ERROR_MESSAGE = _("Please enter a correct username and password. Note that both fields are case-sensitive.")
  75
  76         def clean(self):
  77                 username = self.cleaned_data.get('username')
  78                 password = self.cleaned_data.get('password')
  79                 message = self.ERROR_MESSAGE
  80
  81                 if username and password:
  82                         self.user_cache = authenticate(username=username, password=password)
  83                         if self.user_cache is None:
  84                                 if u'@' in username:
  85                                         # Maybe they entered their email? Look it up, but still raise a ValidationError.
  86                                         try:
  87                                                 user = User.objects.get(email=username)
  88                                         except (User.DoesNotExist, User.MultipleObjectsReturned):
  89                                                 pass
  90                                         else:
  91                                                 if user.check_password(password):
  92                                                         message = _("Your e-mail address is not your username. Try '%s' instead.") % user.username
  93                                 raise ValidationError(message)
  94                         elif not self.user_cache.is_active:
  95                                 raise ValidationError(message)
  96                 self.check_for_test_cookie()
  97                 return self.cleaned_data
  98
  99         def check_for_test_cookie(self):
 100                 # This method duplicates the Django 1.3 AuthenticationForm method.
 101                 if self.request and not self.request.session.test_cookie_worked():
 102                         raise forms.ValidationError(
 103                                 _("Your Web browser doesn't appear to have cookies enabled. "
 104                                   "Cookies are required for logging in."))