def post(self, request, *args, **kwargs):
if "emptybackground" in request.POST:
p = PdfFileWriter()
try:
p.addBlankPage(
width=float(request.POST.get('width')) * mm,
height=float(request.POST.get('height')) * mm,
)
except ValueError:
return JsonResponse({
"status": "error",
"error": "Invalid height/width given."
})
buffer = BytesIO()
p.write(buffer)
buffer.seek(0)
c = CachedFile(web_download=True)
c.expires = now() + timedelta(days=7)
c.date = now()
c.filename = 'background_preview.pdf'
c.type = 'application/pdf'
c.save()
c.file.save('empty.pdf', ContentFile(buffer.read()))
c.refresh_from_db()
return JsonResponse({
"status":
"ok",
"id":
c.id,
"url":
reverse('control:pdf.background',
kwargs={
'event': request.event.slug,
'organizer': request.organizer.slug,
'filename': str(c.id)
})
})
if "background" in request.FILES:
error, fileobj = self.process_upload()
if error:
return JsonResponse({"status": "error", "error": error})
c = CachedFile(web_download=True)
c.expires = now() + timedelta(days=7)
c.date = now()
c.filename = 'background_preview.pdf'
c.type = 'application/pdf'
c.file = fileobj
c.save()
c.refresh_from_db()
return JsonResponse({
"status":
"ok",
"id":
c.id,
"url":
reverse('control:pdf.background',
kwargs={
'event': request.event.slug,
'organizer': request.organizer.slug,
'filename': str(c.id)
})
})
cf = None
if request.POST.get("background", "").strip():
try:
cf = CachedFile.objects.get(id=request.POST.get("background"))
except CachedFile.DoesNotExist:
pass
if "preview" in request.POST:
with rolledback_transaction(), language(
request.event.settings.locale,
request.event.settings.region):
p = self._get_preview_position()
fname, mimet, data = self.generate(
p,
override_layout=(json.loads(self.request.POST.get("data"))
if self.request.POST.get("data") else
None),
override_background=cf.file if cf else None)
resp = HttpResponse(data, content_type=mimet)
ftype = fname.split(".")[-1]
if settings.DEBUG:
# attachment is more secure as we're dealing with user-generated stuff here, but inline is much more convenient during debugging
resp[
'Content-Disposition'] = 'inline; filename="ticket-preview.{}"'.format(
ftype)
resp._csp_ignore = True
else:
resp[
'Content-Disposition'] = 'attachment; filename="ticket-preview.{}"'.format(
ftype)
return resp
elif "data" in request.POST:
if cf:
self.save_background(cf)
self.save_layout()
return JsonResponse({'status': 'ok'})
return HttpResponseBadRequest()
