175 lines
6.4 KiB
Python
175 lines
6.4 KiB
Python
"""passbook core authentication views"""
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from typing import Dict
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from django.contrib import messages
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from django.contrib.auth import login, logout
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from django.contrib.auth.mixins import LoginRequiredMixin, UserPassesTestMixin
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from django.forms.utils import ErrorList
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from django.http import HttpRequest, HttpResponse
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from django.shortcuts import get_object_or_404, redirect, reverse
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from django.utils.translation import ugettext as _
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from django.views import View
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from django.views.generic import FormView
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from structlog import get_logger
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from passbook.core.forms.authentication import SignUpForm
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from passbook.core.models import Invitation, Nonce, User
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from passbook.core.signals import invitation_used, user_signed_up
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from passbook.lib.config import CONFIG
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from passbook.stages.password.exceptions import PasswordPolicyInvalid
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LOGGER = get_logger()
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class LogoutView(LoginRequiredMixin, View):
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"""Log current user out"""
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def dispatch(self, request):
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"""Log current user out"""
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logout(request)
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messages.success(request, _("You've successfully been logged out."))
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return redirect(reverse("passbook_core:auth-login"))
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class SignUpView(UserPassesTestMixin, FormView):
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"""Sign up new user, optionally consume one-use invitation link."""
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template_name = "login/form.html"
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form_class = SignUpForm
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success_url = "."
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# Invitation instance, if invitation link was used
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_invitation = None
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# Instance of newly created user
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_user = None
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# Allow only not authenticated users to login
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def test_func(self):
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return self.request.user.is_authenticated is False
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def handle_no_permission(self):
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return redirect(reverse("passbook_core:overview"))
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def dispatch(self, request, *args, **kwargs):
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"""Check if sign-up is enabled or invitation link given"""
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allowed = False
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if "invitation" in request.GET:
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invitations = Invitation.objects.filter(uuid=request.GET.get("invitation"))
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allowed = invitations.exists()
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if allowed:
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self._invitation = invitations.first()
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if CONFIG.y("passbook.sign_up.enabled"):
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allowed = True
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if not allowed:
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messages.error(request, _("Sign-ups are currently disabled."))
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return redirect(reverse("passbook_core:auth-login"))
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return super().dispatch(request, *args, **kwargs)
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def get_initial(self):
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if self._invitation:
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initial = {}
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if self._invitation.fixed_username:
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initial["username"] = self._invitation.fixed_username
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if self._invitation.fixed_email:
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initial["email"] = self._invitation.fixed_email
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return initial
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return super().get_initial()
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def get_context_data(self, **kwargs):
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kwargs["config"] = CONFIG.y("passbook")
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kwargs["title"] = _("Sign Up")
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kwargs["primary_action"] = _("Sign up")
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return super().get_context_data(**kwargs)
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def form_valid(self, form: SignUpForm) -> HttpResponse:
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"""Create user"""
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try:
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self._user = SignUpView.create_user(form.cleaned_data, self.request)
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except PasswordPolicyInvalid as exc:
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# Manually inject error into form
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# pylint: disable=protected-access
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errors = form._errors.setdefault("password", ErrorList())
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for error in exc.messages:
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errors.append(error)
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return self.form_invalid(form)
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self.consume_invitation()
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messages.success(self.request, _("Successfully signed up!"))
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LOGGER.debug("Successfully signed up", email=form.cleaned_data.get("email"))
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return redirect(reverse("passbook_core:auth-login"))
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def consume_invitation(self):
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"""Consume invitation if an invitation was used"""
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if self._invitation:
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invitation_used.send(
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sender=self,
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request=self.request,
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invitation=self._invitation,
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user=self._user,
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)
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self._invitation.delete()
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@staticmethod
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def create_user(data: Dict, request: HttpRequest = None) -> User:
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"""Create user from data
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Args:
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data: Dictionary as returned by SignUpForm's cleaned_data
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request: Optional current request.
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Returns:
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The user created
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Raises:
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PasswordPolicyInvalid: if any policy are not fulfilled.
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This also deletes the created user.
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"""
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# Create user
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new_user = User.objects.create(
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username=data.get("username"),
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email=data.get("email"),
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name=data.get("name"),
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)
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new_user.is_active = True
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try:
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new_user.set_password(data.get("password"))
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new_user.save()
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request.user = new_user
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# Send signal for other auth sources
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user_signed_up.send(sender=SignUpView, user=new_user, request=request)
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return new_user
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except PasswordPolicyInvalid as exc:
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new_user.delete()
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raise exc
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class SignUpConfirmView(View):
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"""Confirm registration from Nonce"""
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def get(self, request, nonce):
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"""Verify UUID and activate user"""
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nonce = get_object_or_404(Nonce, uuid=nonce)
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nonce.user.is_active = True
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nonce.user.save()
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# Workaround: hardcoded reference to ModelBackend, needs testing
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nonce.user.backend = "django.contrib.auth.backends.ModelBackend"
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login(request, nonce.user)
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nonce.delete()
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messages.success(request, _("Successfully confirmed registration."))
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return redirect("passbook_core:overview")
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class PasswordResetView(View):
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"""Temporarily authenticate User and allow them to reset their password"""
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def get(self, request, nonce):
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"""Authenticate user with nonce and redirect to password change view"""
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# 3. (Optional) Trap user in password change view
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nonce = get_object_or_404(Nonce, uuid=nonce)
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# Workaround: hardcoded reference to ModelBackend, needs testing
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nonce.user.backend = "django.contrib.auth.backends.ModelBackend"
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login(request, nonce.user)
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nonce.delete()
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messages.success(
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request, _(("Temporarily authenticated, please change your password")),
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)
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return redirect("passbook_core:user-change-password")
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