Files
pretix_cgo/src/pretix/base/views/cachedfiles.py

54 lines
2.4 KiB
Python

#
# This file is part of pretix (Community Edition).
#
# Copyright (C) 2014-2020 Raphael Michel and contributors
# Copyright (C) 2020-2021 rami.io GmbH and contributors
#
# This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General
# Public License as published by the Free Software Foundation in version 3 of the License.
#
# ADDITIONAL TERMS APPLY: Pursuant to Section 7 of the GNU Affero General Public License, additional terms are
# applicable granting you additional permissions and placing additional restrictions on your usage of this software.
# Please refer to the pretix LICENSE file to obtain the full terms applicable to this work. If you did not receive
# this file, see <https://pretix.eu/about/en/license>.
#
# This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
# details.
#
# You should have received a copy of the GNU Affero General Public License along with this program. If not, see
# <https://www.gnu.org/licenses/>.
#
from django.http import Http404, HttpRequest, HttpResponse
from django.shortcuts import get_object_or_404
from django.utils.functional import cached_property
from django.views.generic import TemplateView
from pretix.base.models import CachedFile
from pretix.helpers.http import ChunkBasedFileResponse
class DownloadView(TemplateView):
template_name = "pretixbase/cachedfiles/pending.html"
@cached_property
def object(self) -> CachedFile:
try:
o = get_object_or_404(CachedFile, id=self.kwargs['id'], web_download=True)
if o.session_key:
if o.session_key != self.request.session.session_key:
raise Http404()
return o
except ValueError: # Invalid URLs
raise Http404()
def get(self, request: HttpRequest, *args, **kwargs) -> HttpResponse:
if 'ajax' in request.GET:
return HttpResponse('1' if self.object.file else '0')
elif self.object.file:
resp = ChunkBasedFileResponse(self.object.file.file, content_type=self.object.type)
resp['Content-Disposition'] = 'attachment; filename="{}"'.format(self.object.filename)
return resp
else:
return super().get(request, *args, **kwargs)