209 lines
8.3 KiB
Python
209 lines
8.3 KiB
Python
from django.contrib.auth.models import User
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from django.contrib.auth import authenticate
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from django.contrib.auth.tokens import default_token_generator
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from django.contrib.sites.models import Site
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from django.template import Context, loader
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from django import forms
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from django.utils.translation import ugettext_lazy as _
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from django.utils.http import int_to_base36
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class UserCreationForm(forms.ModelForm):
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"""
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A form that creates a user, with no privileges, from the given username and password.
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"""
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username = forms.RegexField(label=_("Username"), max_length=30, regex=r'^\w+$',
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help_text = _("Required. 30 characters or fewer. Alphanumeric characters only (letters, digits and underscores)."),
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error_message = _("This value must contain only letters, numbers and underscores."))
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password1 = forms.CharField(label=_("Password"), widget=forms.PasswordInput)
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password2 = forms.CharField(label=_("Password confirmation"), widget=forms.PasswordInput,
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help_text = _("Enter the same password as above, for verification."))
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class Meta:
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model = User
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fields = ("username",)
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def clean_username(self):
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username = self.cleaned_data["username"]
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try:
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User.objects.get(username=username)
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except User.DoesNotExist:
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return username
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raise forms.ValidationError(_("A user with that username already exists."))
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def clean_password2(self):
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password1 = self.cleaned_data.get("password1", "")
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password2 = self.cleaned_data["password2"]
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if password1 != password2:
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raise forms.ValidationError(_("The two password fields didn't match."))
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return password2
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def save(self, commit=True):
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user = super(UserCreationForm, self).save(commit=False)
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user.set_password(self.cleaned_data["password1"])
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if commit:
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user.save()
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return user
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class UserChangeForm(forms.ModelForm):
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username = forms.RegexField(label=_("Username"), max_length=30, regex=r'^\w+$',
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help_text = _("Required. 30 characters or fewer. Alphanumeric characters only (letters, digits and underscores)."),
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error_message = _("This value must contain only letters, numbers and underscores."))
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class Meta:
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model = User
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class AuthenticationForm(forms.Form):
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"""
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Base class for authenticating users. Extend this to get a form that accepts
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username/password logins.
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"""
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username = forms.CharField(label=_("Username"), max_length=30)
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password = forms.CharField(label=_("Password"), widget=forms.PasswordInput)
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def __init__(self, request=None, *args, **kwargs):
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"""
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If request is passed in, the form will validate that cookies are
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enabled. Note that the request (a HttpRequest object) must have set a
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cookie with the key TEST_COOKIE_NAME and value TEST_COOKIE_VALUE before
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running this validation.
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"""
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self.request = request
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self.user_cache = None
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super(AuthenticationForm, self).__init__(*args, **kwargs)
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def clean(self):
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username = self.cleaned_data.get('username')
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password = self.cleaned_data.get('password')
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if username and password:
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self.user_cache = authenticate(username=username, password=password)
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if self.user_cache is None:
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raise forms.ValidationError(_("Please enter a correct username and password. Note that both fields are case-sensitive."))
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elif not self.user_cache.is_active:
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raise forms.ValidationError(_("This account is inactive."))
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# TODO: determine whether this should move to its own method.
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if self.request:
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if not self.request.session.test_cookie_worked():
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raise forms.ValidationError(_("Your Web browser doesn't appear to have cookies enabled. Cookies are required for logging in."))
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return self.cleaned_data
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def get_user_id(self):
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if self.user_cache:
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return self.user_cache.id
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return None
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def get_user(self):
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return self.user_cache
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class PasswordResetForm(forms.Form):
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email = forms.EmailField(label=_("E-mail"), max_length=75)
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def clean_email(self):
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"""
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Validates that a user exists with the given e-mail address.
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"""
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email = self.cleaned_data["email"]
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self.users_cache = User.objects.filter(email__iexact=email)
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if len(self.users_cache) == 0:
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raise forms.ValidationError(_("That e-mail address doesn't have an associated user account. Are you sure you've registered?"))
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return email
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def save(self, domain_override=None, email_template_name='registration/password_reset_email.html',
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use_https=False, token_generator=default_token_generator):
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"""
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Generates a one-use only link for resetting password and sends to the user
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"""
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from django.core.mail import send_mail
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for user in self.users_cache:
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if not domain_override:
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current_site = Site.objects.get_current()
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site_name = current_site.name
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domain = current_site.domain
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else:
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site_name = domain = domain_override
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t = loader.get_template(email_template_name)
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c = {
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'email': user.email,
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'domain': domain,
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'site_name': site_name,
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'uid': int_to_base36(user.id),
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'user': user,
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'token': token_generator.make_token(user),
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'protocol': use_https and 'https' or 'http',
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}
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send_mail(_("Password reset on %s") % site_name,
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t.render(Context(c)), None, [user.email])
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class SetPasswordForm(forms.Form):
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"""
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A form that lets a user change set his/her password without
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entering the old password
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"""
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new_password1 = forms.CharField(label=_("New password"), widget=forms.PasswordInput)
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new_password2 = forms.CharField(label=_("New password confirmation"), widget=forms.PasswordInput)
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def __init__(self, user, *args, **kwargs):
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self.user = user
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super(SetPasswordForm, self).__init__(*args, **kwargs)
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def clean_new_password2(self):
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password1 = self.cleaned_data.get('new_password1')
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password2 = self.cleaned_data.get('new_password2')
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if password1 and password2:
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if password1 != password2:
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raise forms.ValidationError(_("The two password fields didn't match."))
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return password2
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def save(self, commit=True):
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self.user.set_password(self.cleaned_data['new_password1'])
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if commit:
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self.user.save()
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return self.user
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class PasswordChangeForm(SetPasswordForm):
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"""
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A form that lets a user change his/her password by entering
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their old password.
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"""
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old_password = forms.CharField(label=_("Old password"), widget=forms.PasswordInput)
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def clean_old_password(self):
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"""
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Validates that the old_password field is correct.
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"""
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old_password = self.cleaned_data["old_password"]
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if not self.user.check_password(old_password):
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raise forms.ValidationError(_("Your old password was entered incorrectly. Please enter it again."))
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return old_password
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PasswordChangeForm.base_fields.keyOrder = ['old_password', 'new_password1', 'new_password2']
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class AdminPasswordChangeForm(forms.Form):
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"""
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A form used to change the password of a user in the admin interface.
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"""
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password1 = forms.CharField(label=_("Password"), widget=forms.PasswordInput)
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password2 = forms.CharField(label=_("Password (again)"), widget=forms.PasswordInput)
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def __init__(self, user, *args, **kwargs):
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self.user = user
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super(AdminPasswordChangeForm, self).__init__(*args, **kwargs)
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def clean_password2(self):
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password1 = self.cleaned_data.get('password1')
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password2 = self.cleaned_data.get('password2')
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if password1 and password2:
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if password1 != password2:
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raise forms.ValidationError(_("The two password fields didn't match."))
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return password2
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def save(self, commit=True):
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"""
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Saves the new password.
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"""
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self.user.set_password(self.cleaned_data["password1"])
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if commit:
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self.user.save()
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return self.user
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