WIP: empêcher le contrôle des redirections sur les mails d'enregistrement et de réinitialisation de mot de passe (#76835) #44
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@ -14,12 +14,13 @@
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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from django.conf import settings
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from django.contrib.auth import REDIRECT_FIELD_NAME
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import functools
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from django.forms import Form
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from django.utils.decorators import method_decorator
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from django.views.decorators.csrf import csrf_exempt, ensure_csrf_cookie
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from .forms.utils import NextUrlFormMixin
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from .utils import hooks
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from .utils import misc as utils_misc
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from .utils.views import csrf_token_check
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@ -47,39 +48,35 @@ class ValidateCSRFMixin:
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return super().form_valid(*args, **kwargs)
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class RedirectToNextURLViewMixin:
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@functools.cache
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def make_next_url_form_class(form_class):
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if issubclass(form_class, NextUrlFormMixin):
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return form_class
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return type(f'NextURL{form_class.__name__}', (form_class, NextUrlFormMixin), {})
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class NextUrlViewMixin:
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'''Mixin to FormView of forms using NextUrlFormMixin'''
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next_url = None
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def setup(self, request, *args, **kwargs):
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super().setup(request, *args, **kwargs)
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self.next_url = utils_misc.select_next_url(request, self.next_url, include_post=True)
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def get_form_class(self):
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return make_next_url_form_class(super().get_form_class())
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def get_form_kwargs(self):
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kwargs = super().get_form_kwargs()
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kwargs.setdefault('initial', {})['next_url'] = self.next_url
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kwargs['request'] = self.request
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return kwargs
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class SuccessUrlViewMixin(NextUrlViewMixin):
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def get_success_url(self):
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if REDIRECT_FIELD_NAME in self.request.GET:
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return self.request.GET[REDIRECT_FIELD_NAME]
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return settings.LOGIN_REDIRECT_URL
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class NextURLViewMixin(RedirectToNextURLViewMixin):
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"""Make a view handle a next parameter, if it's not present it is
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automatically generated from the Referrer or from the value
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returned by the method get_next_url_default().
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"""
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next_url_default = '..'
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def get_next_url_default(self):
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return self.next_url_default
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def dispatch(self, request, *args, **kwargs):
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if REDIRECT_FIELD_NAME in request.GET:
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pass
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else:
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next_url = request.headers.get('Referer') or self.next_url_default
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return utils_misc.redirect(
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request,
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request.path,
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keep_params=True,
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params={
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REDIRECT_FIELD_NAME: next_url,
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},
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status=303,
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)
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return super().dispatch(request, *args, **kwargs)
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return self.next_url or super().get_success_url()
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class TemplateNamesMixin:
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@ -39,9 +39,7 @@ from .utils import NextUrlFormMixin
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logger = logging.getLogger(__name__)
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class PasswordResetForm(HoneypotForm):
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next_url = forms.CharField(widget=forms.HiddenInput, required=False)
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class PasswordResetForm(NextUrlFormMixin, HoneypotForm):
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email = ValidatedEmailField(label=_("Email"))
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def __init__(self, *args, **kwargs):
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@ -190,9 +188,7 @@ class SetPasswordForm(NotifyOfPasswordChange, PasswordResetMixin, auth_forms.Set
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return new_password1
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class PasswordChangeForm(
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NotifyOfPasswordChange, NextUrlFormMixin, PasswordResetMixin, auth_forms.PasswordChangeForm
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):
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class PasswordChangeForm(NotifyOfPasswordChange, PasswordResetMixin, auth_forms.PasswordChangeForm):
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old_password = PasswordField(label=_('Old password'))
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new_password1 = NewPasswordField(label=_('New password'))
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new_password2 = CheckPasswordField(label=_("New password confirmation"))
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@ -15,19 +15,23 @@
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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from django import forms
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from django.contrib.auth import REDIRECT_FIELD_NAME
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from ..middleware import StoreRequestMiddleware
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from authentic2.utils.misc import good_next_url
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class NextUrlFormMixin(forms.Form):
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class FormNeedsRequest:
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def __init__(self, *args, **kwargs):
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self.request = kwargs.pop('request')
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super().__init__(*args, **kwargs)
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class NextUrlFormMixin(FormNeedsRequest, forms.Form):
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'''Use with authentic.cbv.NextUrlViewMixin.'''
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next_url = forms.CharField(widget=forms.HiddenInput(), required=False)
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def __init__(self, *args, **kwargs):
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next_url = kwargs.pop('next_url', None)
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request = StoreRequestMiddleware.get_request()
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if not next_url and request:
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next_url = request.GET.get(REDIRECT_FIELD_NAME)
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super().__init__(*args, **kwargs)
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if next_url:
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self.fields['next_url'].initial = next_url
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def clean_next_url(self):
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next_url = self.cleaned_data.get('next_url')
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if not good_next_url(self.request, next_url):
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return ''
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return next_url
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@ -1,10 +0,0 @@
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{% extends "authentic2/base-page.html" %}
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{% load i18n %}
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{% block title %}
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{{ view.title }}
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{% endblock %}
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{% block content %}
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<p>{% trans "Password changed" %}</p>
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{% endblock %}
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@ -16,7 +16,6 @@
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from django.conf import settings
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from django.contrib import admin
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from django.contrib.auth import views as dj_auth_views
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from django.contrib.auth.decorators import login_required
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from django.contrib.staticfiles.views import serve
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from django.urls import include, path, re_path
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@ -69,11 +68,6 @@ accounts_urlpatterns = [
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path('', views.profile, name='account_management'),
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# Password change
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path('password/change/', views.password_change, name='password_change'),
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path(
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'password/change/done/',
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dj_auth_views.PasswordChangeDoneView.as_view(),
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name='password_change_done',
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),
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# permament redirections for views moved to root
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path('register/', RedirectView.as_view(permanent=True, pattern_name='registration_register')),
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path('register/complete/', RedirectView.as_view(permanent=True, pattern_name='registration_complete')),
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@ -85,10 +85,11 @@ class HomeURLMixin:
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return super().dispatch(request, *args, **kwargs)
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class EditProfile(HomeURLMixin, cbv.HookMixin, cbv.TemplateNamesMixin, UpdateView):
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class EditProfile(HomeURLMixin, cbv.SuccessUrlViewMixin, cbv.HookMixin, cbv.TemplateNamesMixin, UpdateView):
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model = User
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template_names = ['profiles/edit_profile.html', 'authentic2/accounts_edit.html']
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title = _('Edit account data')
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success_url = reverse_lazy('account_management')
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def get_template_names(self):
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template_names = []
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@ -131,7 +132,8 @@ class EditProfile(HomeURLMixin, cbv.HookMixin, cbv.TemplateNamesMixin, UpdateVie
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fields = [field for field in fields if field in default_fields]
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return fields, labels
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def get_form_class(self):
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@property
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def form_class(self):
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if 'scope' in self.kwargs:
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scopes = [self.kwargs['scope']]
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else:
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@ -146,19 +148,9 @@ class EditProfile(HomeURLMixin, cbv.HookMixin, cbv.TemplateNamesMixin, UpdateVie
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def get_object(self):
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return self.request.user
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def get_form_kwargs(self, **kwargs):
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kwargs = super().get_form_kwargs(**kwargs)
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kwargs['next_url'] = utils_misc.select_next_url(self.request, reverse('account_management'))
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return kwargs
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def get_success_url(self):
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return utils_misc.select_next_url(
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self.request, default=reverse('account_management'), field_name='next_url', include_post=True
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)
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def post(self, request, *args, **kwargs):
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if 'cancel' in request.POST:
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return utils_misc.redirect(request, self.get_success_url())
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return utils_misc.redirect(request, self.next_url or str(self.success_url))
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return super().post(request, *args, **kwargs)
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def form_valid(self, form):
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@ -839,14 +831,12 @@ def csrf_failure_view(request, reason=""):
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return HttpResponseRedirect(request.get_full_path())
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class PasswordResetView(FormView):
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class PasswordResetView(cbv.NextUrlViewMixin, FormView):
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'''Ask for an email and send a password reset link by mail'''
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form_class = passwords_forms.PasswordResetForm
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title = _('Password Reset')
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def get_success_url(self):
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return reverse('password_reset_instructions')
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success_url = reverse_lazy('password_reset_instructions')
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def get_template_names(self):
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return [
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@ -854,12 +844,6 @@ class PasswordResetView(FormView):
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'registration/password_reset_form.html',
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]
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def get_form_kwargs(self, **kwargs):
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kwargs = super().get_form_kwargs(**kwargs)
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initial = kwargs.setdefault('initial', {})
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initial['next_url'] = utils_misc.select_next_url(self.request, '')
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return kwargs
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def get_context_data(self, **kwargs):
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ctx = super().get_context_data(**kwargs)
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if app_settings.A2_USER_CAN_RESET_PASSWORD is False:
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@ -971,11 +955,12 @@ class TokenLoginView(RedirectView):
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token_login = TokenLoginView.as_view()
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class PasswordResetConfirmView(cbv.RedirectToNextURLViewMixin, FormView):
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class PasswordResetConfirmView(cbv.SuccessUrlViewMixin, FormView):
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"""Validate password reset link, show a set password form and login
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the user.
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"""
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success_url = reverse_lazy('auth_homepage')
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form_class = passwords_forms.SetPasswordForm
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title = _('Password Reset')
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@ -1037,18 +1022,15 @@ class PasswordResetConfirmView(cbv.RedirectToNextURLViewMixin, FormView):
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hooks.call_hooks('event', name='password-reset-confirm', user=form.user, token=self.token, form=form)
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logger.info('password reset for user %s with token %r', self.user, self.token.uuid)
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self.token.delete()
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return self.finish()
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def finish(self):
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response = utils_misc.simulate_authentication(self.request, self.user, 'email')
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utils_misc.simulate_authentication(self.request, self.user, 'email')
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self.request.journal.record('user.password.reset')
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return response
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return super().form_valid(form)
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password_reset_confirm = PasswordResetConfirmView.as_view()
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class BaseRegistrationView(HomeURLMixin, FormView):
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class BaseRegistrationView(HomeURLMixin, cbv.NextUrlViewMixin, FormView):
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form_class = registration_forms.RegistrationForm
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template_name = 'registration/registration_form.html'
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title = _('Registration')
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@ -1070,7 +1052,7 @@ class BaseRegistrationView(HomeURLMixin, FormView):
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return HttpResponseBadRequest('invalid token', content_type='text/plain')
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if 'ou' in self.token:
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self.ou = OU.objects.get(pk=self.token['ou'])
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self.next_url = self.token.pop(REDIRECT_FIELD_NAME, utils_misc.select_next_url(request, None))
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self.next_url = self.token.pop(REDIRECT_FIELD_NAME, self.next_url)
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set_home_url(request, self.next_url)
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return super().dispatch(request, *args, **kwargs)
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@ -1217,7 +1199,8 @@ class BaseRegistrationView(HomeURLMixin, FormView):
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return self.form_invalid(form)
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for field in form.cleaned_data:
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self.token[field] = form.cleaned_data[field]
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if field in app_settings.A2_PRE_REGISTRATION_FIELDS:
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self.token[field] = form.cleaned_data[field]
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self.token.pop(REDIRECT_FIELD_NAME, None)
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self.token.pop('email', None)
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@ -1751,23 +1734,21 @@ registration_complete = RegistrationCompleteView.as_view()
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class PasswordChangeView(HomeURLMixin, DjPasswordChangeView):
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title = _('Password Change')
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do_not_call_in_templates = True
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success_url = reverse_lazy('account_management')
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def redirect(self):
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return HttpResponseRedirect(self.get_success_url())
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def dispatch(self, request, *args, **kwargs):
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if 'next_url' in request.POST and request.POST['next_url']:
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self.post_change_redirect = request.POST['next_url']
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elif REDIRECT_FIELD_NAME in request.GET:
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self.post_change_redirect = request.GET[REDIRECT_FIELD_NAME]
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else:
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self.post_change_redirect = reverse('account_management')
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if not utils_misc.user_can_change_password(request=request):
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messages.warning(request, _('Password change is forbidden'))
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return utils_misc.redirect(request, self.post_change_redirect)
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return self.redirect()
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hooks.call_hooks('password_change_view', request=self.request)
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return super().dispatch(request, *args, **kwargs)
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def post(self, request, *args, **kwargs):
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if 'cancel' in request.POST:
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return utils_misc.redirect(request, self.post_change_redirect)
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return self.redirect()
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return super().post(request, *args, **kwargs)
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def form_valid(self, form):
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@ -1777,22 +1758,18 @@ class PasswordChangeView(HomeURLMixin, DjPasswordChangeView):
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response = super().form_valid(form)
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except utils_misc.PasswordChangeError as e:
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messages.error(self.request, e.message)
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return utils_misc.redirect(self.request, self.post_change_redirect)
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return self.redirect()
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messages.info(self.request, _('Password changed'))
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self.request.journal.record('user.password.change', session=self.request.session)
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return response
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def get_form_class(self):
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@property
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def form_class(self):
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if self.request.user.has_usable_password():
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return passwords_forms.PasswordChangeForm
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else:
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return passwords_forms.SetPasswordForm
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def get_context_data(self, **kwargs):
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ctx = super().get_context_data(**kwargs)
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ctx[REDIRECT_FIELD_NAME] = self.post_change_redirect
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return ctx
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password_change = decorators.setting_enabled('A2_REGISTRATION_CAN_CHANGE_PASSWORD')(
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PasswordChangeView.as_view()
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@ -242,7 +242,7 @@ class UserProfileTests(TestCase):
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kwargs = {'%s-%s' % (form.prefix, k): v for k, v in kwargs.items()}
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response = self.client.post(reverse('profile_edit'), kwargs)
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new = {'custom': 'random data', 'next_url': '', 'national_number': 'xx20153566342yy'}
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new = {'custom': 'random data', 'national_number': 'xx20153566342yy'}
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assert_event('user.profile.edit', user=self.user, session=self.client.session, old={}, new=new)
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self.assertEqual(response.status_code, 302)
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@ -18,6 +18,7 @@ from django.test.utils import override_settings
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from django.urls import reverse
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from authentic2.utils.misc import send_password_reset_mail
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from authentic2.views import PasswordResetView
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from . import utils
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@ -250,3 +251,20 @@ def test_ou_policies(app, db, settings, user_ou1, ou1, user_ou2, ou2, mailoutbox
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url = reverse('password_reset')
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resp = app.get(url, status=404) # globally deactivated, page not found
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def test_open_redirection(db, rf, app):
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BAD_URL = 'https://bad.url.com/'
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request = rf.get(f'/password/reset/?next={BAD_URL}')
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password_reset = PasswordResetView()
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password_reset.setup(request)
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assert password_reset.get_form_kwargs()['initial']['next_url'] != BAD_URL
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request = rf.post('/password/reset/?next', {'next_url': BAD_URL, 'email': 'john.doe@example.com'})
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password_reset = PasswordResetView()
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password_reset.setup(request)
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form = password_reset.get_form()
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assert form.is_valid()
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assert form.cleaned_data['next_url'] == ''
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|
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@ -86,7 +86,7 @@ def test_password_change(app, simple_user):
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resp.form['new_password2'] = 'hopAbcde1'
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resp = resp.form.submit()
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assert resp.location == '/accounts/password/change/done/'
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assert resp.location == '/accounts/'
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new_session_key = app.session.session_key
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assert old_session_key != new_session_key, 'session\'s key has not been cycled'
|
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