Files
pretix_original/src/pretix/control/views/shredder.py
2021-01-01 20:20:42 +01:00

132 lines
4.8 KiB
Python

import json
import logging
from collections import OrderedDict
from zipfile import ZipFile
from django.shortcuts import get_object_or_404
from django.urls import reverse
from django.utils.functional import cached_property
from django.utils.translation import gettext_lazy as _
from django.views import View
from django.views.generic import TemplateView
from pretix.base.models import CachedFile
from pretix.base.services.shredder import export, shred
from pretix.base.shredder import ShredError, shred_constraints
from pretix.base.views.tasks import AsyncAction
from pretix.control.permissions import EventPermissionRequiredMixin
from pretix.control.views.user import RecentAuthenticationRequiredMixin
logger = logging.getLogger(__name__)
class ShredderMixin:
@cached_property
def shredders(self):
return OrderedDict(
sorted(self.request.event.get_data_shredders().items(), key=lambda s: s[1].verbose_name)
)
class StartShredView(RecentAuthenticationRequiredMixin, EventPermissionRequiredMixin, ShredderMixin, TemplateView):
permission = 'can_change_orders'
template_name = 'pretixcontrol/shredder/index.html'
def get_context_data(self, **kwargs):
ctx = super().get_context_data(**kwargs)
ctx['shredders'] = self.shredders
ctx['constraints'] = shred_constraints(self.request.event)
return ctx
class ShredDownloadView(RecentAuthenticationRequiredMixin, EventPermissionRequiredMixin, ShredderMixin, TemplateView):
permission = 'can_change_orders'
template_name = 'pretixcontrol/shredder/download.html'
def get_context_data(self, **kwargs):
try:
cf = CachedFile.objects.get(pk=kwargs['file'])
except CachedFile.DoesNotExist:
raise ShredError(_("The download file could no longer be found on the server, please try to start again."))
with ZipFile(cf.file.file, 'r') as zipfile:
indexdata = json.loads(zipfile.read('index.json').decode())
if indexdata['organizer'] != kwargs['organizer'] or indexdata['event'] != kwargs['event']:
raise ShredError(_("This file is from a different event."))
shredders = []
for s in indexdata['shredders']:
shredder = self.shredders.get(s)
if not shredder:
continue
shredders.append(shredder)
ctx = super().get_context_data(**kwargs)
ctx['shredders'] = self.shredders
ctx['download_on_shred'] = any(shredder.require_download_confirmation for shredder in shredders)
ctx['file'] = get_object_or_404(CachedFile, pk=kwargs.get("file"))
return ctx
class ShredExportView(RecentAuthenticationRequiredMixin, EventPermissionRequiredMixin, ShredderMixin, AsyncAction, View):
permission = 'can_change_orders'
task = export
known_errortypes = ['ShredError']
def get_success_message(self, value):
return None
def get_success_url(self, value):
return reverse('control:event.shredder.download', kwargs={
'event': self.request.event.slug,
'organizer': self.request.event.organizer.slug,
'file': str(value)
})
def get_error_url(self):
return reverse('control:event.shredder.start', kwargs={
'event': self.request.event.slug,
'organizer': self.request.event.organizer.slug
})
def post(self, request, *args, **kwargs):
constr = shred_constraints(self.request.event)
if constr:
return self.error(ShredError(self.get_error_url()))
return self.do(self.request.event.id, request.POST.getlist("shredder"), self.request.session.session_key)
class ShredDoView(RecentAuthenticationRequiredMixin, EventPermissionRequiredMixin, ShredderMixin, AsyncAction, View):
permission = 'can_change_orders'
task = shred
known_errortypes = ['ShredError']
def get_success_url(self, value):
return reverse('control:event.shredder.start', kwargs={
'event': self.request.event.slug,
'organizer': self.request.event.organizer.slug,
})
def get_success_message(self, value):
return _('The selected data was deleted successfully.')
def get_error_url(self):
return reverse('control:event.shredder.download', kwargs={
'event': self.request.event.slug,
'organizer': self.request.event.organizer.slug,
'file': self.request.POST.get("file")
})
def post(self, request, *args, **kwargs):
constr = shred_constraints(self.request.event)
if constr:
return self.error(ShredError(self.get_error_url()))
if request.event.slug != request.POST.get("slug"):
return self.error(ShredError(_("The slug you entered was not correct.")))
return self.do(self.request.event.id, request.POST.get("file"), request.POST.get("confirm_code"))