426 lines
15 KiB
Python
426 lines
15 KiB
Python
from __future__ import unicode_literals
|
|
|
|
import unicodedata
|
|
|
|
from django import forms
|
|
from django.contrib.auth import (
|
|
authenticate, get_user_model, password_validation,
|
|
)
|
|
from django.contrib.auth.hashers import (
|
|
UNUSABLE_PASSWORD_PREFIX, identify_hasher,
|
|
)
|
|
from django.contrib.auth.models import User
|
|
from django.contrib.auth.tokens import default_token_generator
|
|
from django.contrib.sites.shortcuts import get_current_site
|
|
from django.core.mail import EmailMultiAlternatives
|
|
from django.forms.utils import flatatt
|
|
from django.template import loader
|
|
from django.utils.encoding import force_bytes
|
|
from django.utils.html import format_html, format_html_join
|
|
from django.utils.http import urlsafe_base64_encode
|
|
from django.utils.safestring import mark_safe
|
|
from django.utils.text import capfirst
|
|
from django.utils.translation import ugettext, ugettext_lazy as _
|
|
|
|
|
|
class ReadOnlyPasswordHashWidget(forms.Widget):
|
|
def render(self, name, value, attrs):
|
|
encoded = value
|
|
final_attrs = self.build_attrs(attrs)
|
|
|
|
if not encoded or encoded.startswith(UNUSABLE_PASSWORD_PREFIX):
|
|
summary = mark_safe("<strong>%s</strong>" % ugettext("No password set."))
|
|
else:
|
|
try:
|
|
hasher = identify_hasher(encoded)
|
|
except ValueError:
|
|
summary = mark_safe("<strong>%s</strong>" % ugettext(
|
|
"Invalid password format or unknown hashing algorithm."
|
|
))
|
|
else:
|
|
summary = format_html_join(
|
|
'', '<strong>{}</strong>: {} ',
|
|
((ugettext(key), value) for key, value in hasher.safe_summary(encoded).items())
|
|
)
|
|
|
|
return format_html("<div{}>{}</div>", flatatt(final_attrs), summary)
|
|
|
|
|
|
class ReadOnlyPasswordHashField(forms.Field):
|
|
widget = ReadOnlyPasswordHashWidget
|
|
|
|
def __init__(self, *args, **kwargs):
|
|
kwargs.setdefault("required", False)
|
|
super(ReadOnlyPasswordHashField, self).__init__(*args, **kwargs)
|
|
|
|
def bound_data(self, data, initial):
|
|
# Always return initial because the widget doesn't
|
|
# render an input field.
|
|
return initial
|
|
|
|
def has_changed(self, initial, data):
|
|
return False
|
|
|
|
|
|
class UsernameField(forms.CharField):
|
|
def to_python(self, value):
|
|
return unicodedata.normalize('NFKC', super(UsernameField, self).to_python(value))
|
|
|
|
|
|
class UserCreationForm(forms.ModelForm):
|
|
"""
|
|
A form that creates a user, with no privileges, from the given username and
|
|
password.
|
|
"""
|
|
error_messages = {
|
|
'password_mismatch': _("The two password fields didn't match."),
|
|
}
|
|
password1 = forms.CharField(
|
|
label=_("Password"),
|
|
strip=False,
|
|
widget=forms.PasswordInput,
|
|
help_text=password_validation.password_validators_help_text_html(),
|
|
)
|
|
password2 = forms.CharField(
|
|
label=_("Password confirmation"),
|
|
widget=forms.PasswordInput,
|
|
strip=False,
|
|
help_text=_("Enter the same password as before, for verification."),
|
|
)
|
|
|
|
class Meta:
|
|
model = User
|
|
fields = ("username",)
|
|
field_classes = {'username': UsernameField}
|
|
|
|
def __init__(self, *args, **kwargs):
|
|
super(UserCreationForm, self).__init__(*args, **kwargs)
|
|
if self._meta.model.USERNAME_FIELD in self.fields:
|
|
self.fields[self._meta.model.USERNAME_FIELD].widget.attrs.update({'autofocus': True})
|
|
|
|
def clean_password2(self):
|
|
password1 = self.cleaned_data.get("password1")
|
|
password2 = self.cleaned_data.get("password2")
|
|
if password1 and password2 and password1 != password2:
|
|
raise forms.ValidationError(
|
|
self.error_messages['password_mismatch'],
|
|
code='password_mismatch',
|
|
)
|
|
self.instance.username = self.cleaned_data.get('username')
|
|
password_validation.validate_password(self.cleaned_data.get('password2'), self.instance)
|
|
return password2
|
|
|
|
def save(self, commit=True):
|
|
user = super(UserCreationForm, self).save(commit=False)
|
|
user.set_password(self.cleaned_data["password1"])
|
|
if commit:
|
|
user.save()
|
|
return user
|
|
|
|
|
|
class UserChangeForm(forms.ModelForm):
|
|
password = ReadOnlyPasswordHashField(
|
|
label=_("Password"),
|
|
help_text=_(
|
|
"Raw passwords are not stored, so there is no way to see this "
|
|
"user's password, but you can change the password using "
|
|
"<a href=\"../password/\">this form</a>."
|
|
),
|
|
)
|
|
|
|
class Meta:
|
|
model = User
|
|
fields = '__all__'
|
|
field_classes = {'username': UsernameField}
|
|
|
|
def __init__(self, *args, **kwargs):
|
|
super(UserChangeForm, self).__init__(*args, **kwargs)
|
|
f = self.fields.get('user_permissions')
|
|
if f is not None:
|
|
f.queryset = f.queryset.select_related('content_type')
|
|
|
|
def clean_password(self):
|
|
# Regardless of what the user provides, return the initial value.
|
|
# This is done here, rather than on the field, because the
|
|
# field does not have access to the initial value
|
|
return self.initial["password"]
|
|
|
|
|
|
class AuthenticationForm(forms.Form):
|
|
"""
|
|
Base class for authenticating users. Extend this to get a form that accepts
|
|
username/password logins.
|
|
"""
|
|
username = UsernameField(
|
|
max_length=254,
|
|
widget=forms.TextInput(attrs={'autofocus': True}),
|
|
)
|
|
password = forms.CharField(
|
|
label=_("Password"),
|
|
strip=False,
|
|
widget=forms.PasswordInput,
|
|
)
|
|
|
|
error_messages = {
|
|
'invalid_login': _(
|
|
"Please enter a correct %(username)s and password. Note that both "
|
|
"fields may be case-sensitive."
|
|
),
|
|
'inactive': _("This account is inactive."),
|
|
}
|
|
|
|
def __init__(self, request=None, *args, **kwargs):
|
|
"""
|
|
The 'request' parameter is set for custom auth use by subclasses.
|
|
The form data comes in via the standard 'data' kwarg.
|
|
"""
|
|
self.request = request
|
|
self.user_cache = None
|
|
super(AuthenticationForm, self).__init__(*args, **kwargs)
|
|
|
|
# Set the label for the "username" field.
|
|
UserModel = get_user_model()
|
|
self.username_field = UserModel._meta.get_field(UserModel.USERNAME_FIELD)
|
|
if self.fields['username'].label is None:
|
|
self.fields['username'].label = capfirst(self.username_field.verbose_name)
|
|
|
|
def clean(self):
|
|
username = self.cleaned_data.get('username')
|
|
password = self.cleaned_data.get('password')
|
|
|
|
if username is not None and password:
|
|
self.user_cache = authenticate(self.request, username=username, password=password)
|
|
if self.user_cache is None:
|
|
raise forms.ValidationError(
|
|
self.error_messages['invalid_login'],
|
|
code='invalid_login',
|
|
params={'username': self.username_field.verbose_name},
|
|
)
|
|
else:
|
|
self.confirm_login_allowed(self.user_cache)
|
|
|
|
return self.cleaned_data
|
|
|
|
def confirm_login_allowed(self, user):
|
|
"""
|
|
Controls whether the given User may log in. This is a policy setting,
|
|
independent of end-user authentication. This default behavior is to
|
|
allow login by active users, and reject login by inactive users.
|
|
|
|
If the given user cannot log in, this method should raise a
|
|
``forms.ValidationError``.
|
|
|
|
If the given user may log in, this method should return None.
|
|
"""
|
|
if not user.is_active:
|
|
raise forms.ValidationError(
|
|
self.error_messages['inactive'],
|
|
code='inactive',
|
|
)
|
|
|
|
def get_user_id(self):
|
|
if self.user_cache:
|
|
return self.user_cache.id
|
|
return None
|
|
|
|
def get_user(self):
|
|
return self.user_cache
|
|
|
|
|
|
class PasswordResetForm(forms.Form):
|
|
email = forms.EmailField(label=_("Email"), max_length=254)
|
|
|
|
def send_mail(self, subject_template_name, email_template_name,
|
|
context, from_email, to_email, html_email_template_name=None):
|
|
"""
|
|
Sends a django.core.mail.EmailMultiAlternatives to `to_email`.
|
|
"""
|
|
subject = loader.render_to_string(subject_template_name, context)
|
|
# Email subject *must not* contain newlines
|
|
subject = ''.join(subject.splitlines())
|
|
body = loader.render_to_string(email_template_name, context)
|
|
|
|
email_message = EmailMultiAlternatives(subject, body, from_email, [to_email])
|
|
if html_email_template_name is not None:
|
|
html_email = loader.render_to_string(html_email_template_name, context)
|
|
email_message.attach_alternative(html_email, 'text/html')
|
|
|
|
email_message.send()
|
|
|
|
def get_users(self, email):
|
|
"""Given an email, return matching user(s) who should receive a reset.
|
|
|
|
This allows subclasses to more easily customize the default policies
|
|
that prevent inactive users and users with unusable passwords from
|
|
resetting their password.
|
|
"""
|
|
UserModel = get_user_model()
|
|
active_users = UserModel._default_manager.filter(**{
|
|
'%s__iexact' % UserModel.get_email_field_name(): email,
|
|
'is_active': True,
|
|
})
|
|
return (u for u in active_users if u.has_usable_password())
|
|
|
|
def save(self, domain_override=None,
|
|
subject_template_name='registration/password_reset_subject.txt',
|
|
email_template_name='registration/password_reset_email.html',
|
|
use_https=False, token_generator=default_token_generator,
|
|
from_email=None, request=None, html_email_template_name=None,
|
|
extra_email_context=None):
|
|
"""
|
|
Generates a one-use only link for resetting password and sends to the
|
|
user.
|
|
"""
|
|
email = self.cleaned_data["email"]
|
|
for user in self.get_users(email):
|
|
if not domain_override:
|
|
current_site = get_current_site(request)
|
|
site_name = current_site.name
|
|
domain = current_site.domain
|
|
else:
|
|
site_name = domain = domain_override
|
|
context = {
|
|
'email': email,
|
|
'domain': domain,
|
|
'site_name': site_name,
|
|
'uid': urlsafe_base64_encode(force_bytes(user.pk)),
|
|
'user': user,
|
|
'token': token_generator.make_token(user),
|
|
'protocol': 'https' if use_https else 'http',
|
|
}
|
|
if extra_email_context is not None:
|
|
context.update(extra_email_context)
|
|
self.send_mail(
|
|
subject_template_name, email_template_name, context, from_email,
|
|
email, html_email_template_name=html_email_template_name,
|
|
)
|
|
|
|
|
|
class SetPasswordForm(forms.Form):
|
|
"""
|
|
A form that lets a user change set their password without entering the old
|
|
password
|
|
"""
|
|
error_messages = {
|
|
'password_mismatch': _("The two password fields didn't match."),
|
|
}
|
|
new_password1 = forms.CharField(
|
|
label=_("New password"),
|
|
widget=forms.PasswordInput,
|
|
strip=False,
|
|
help_text=password_validation.password_validators_help_text_html(),
|
|
)
|
|
new_password2 = forms.CharField(
|
|
label=_("New password confirmation"),
|
|
strip=False,
|
|
widget=forms.PasswordInput,
|
|
)
|
|
|
|
def __init__(self, user, *args, **kwargs):
|
|
self.user = user
|
|
super(SetPasswordForm, self).__init__(*args, **kwargs)
|
|
|
|
def clean_new_password2(self):
|
|
password1 = self.cleaned_data.get('new_password1')
|
|
password2 = self.cleaned_data.get('new_password2')
|
|
if password1 and password2:
|
|
if password1 != password2:
|
|
raise forms.ValidationError(
|
|
self.error_messages['password_mismatch'],
|
|
code='password_mismatch',
|
|
)
|
|
password_validation.validate_password(password2, self.user)
|
|
return password2
|
|
|
|
def save(self, commit=True):
|
|
password = self.cleaned_data["new_password1"]
|
|
self.user.set_password(password)
|
|
if commit:
|
|
self.user.save()
|
|
return self.user
|
|
|
|
|
|
class PasswordChangeForm(SetPasswordForm):
|
|
"""
|
|
A form that lets a user change their password by entering their old
|
|
password.
|
|
"""
|
|
error_messages = dict(SetPasswordForm.error_messages, **{
|
|
'password_incorrect': _("Your old password was entered incorrectly. Please enter it again."),
|
|
})
|
|
old_password = forms.CharField(
|
|
label=_("Old password"),
|
|
strip=False,
|
|
widget=forms.PasswordInput(attrs={'autofocus': True}),
|
|
)
|
|
|
|
field_order = ['old_password', 'new_password1', 'new_password2']
|
|
|
|
def clean_old_password(self):
|
|
"""
|
|
Validates that the old_password field is correct.
|
|
"""
|
|
old_password = self.cleaned_data["old_password"]
|
|
if not self.user.check_password(old_password):
|
|
raise forms.ValidationError(
|
|
self.error_messages['password_incorrect'],
|
|
code='password_incorrect',
|
|
)
|
|
return old_password
|
|
|
|
|
|
class AdminPasswordChangeForm(forms.Form):
|
|
"""
|
|
A form used to change the password of a user in the admin interface.
|
|
"""
|
|
error_messages = {
|
|
'password_mismatch': _("The two password fields didn't match."),
|
|
}
|
|
required_css_class = 'required'
|
|
password1 = forms.CharField(
|
|
label=_("Password"),
|
|
widget=forms.PasswordInput(attrs={'autofocus': True}),
|
|
strip=False,
|
|
help_text=password_validation.password_validators_help_text_html(),
|
|
)
|
|
password2 = forms.CharField(
|
|
label=_("Password (again)"),
|
|
widget=forms.PasswordInput,
|
|
strip=False,
|
|
help_text=_("Enter the same password as before, for verification."),
|
|
)
|
|
|
|
def __init__(self, user, *args, **kwargs):
|
|
self.user = user
|
|
super(AdminPasswordChangeForm, self).__init__(*args, **kwargs)
|
|
|
|
def clean_password2(self):
|
|
password1 = self.cleaned_data.get('password1')
|
|
password2 = self.cleaned_data.get('password2')
|
|
if password1 and password2:
|
|
if password1 != password2:
|
|
raise forms.ValidationError(
|
|
self.error_messages['password_mismatch'],
|
|
code='password_mismatch',
|
|
)
|
|
password_validation.validate_password(password2, self.user)
|
|
return password2
|
|
|
|
def save(self, commit=True):
|
|
"""
|
|
Saves the new password.
|
|
"""
|
|
password = self.cleaned_data["password1"]
|
|
self.user.set_password(password)
|
|
if commit:
|
|
self.user.save()
|
|
return self.user
|
|
|
|
@property
|
|
def changed_data(self):
|
|
data = super(AdminPasswordChangeForm, self).changed_data
|
|
for name in self.fields.keys():
|
|
if name not in data:
|
|
return []
|
|
return ['password']
|