__copyright__ = "Copyright © Stichting SciPost (SciPost Foundation)"
__license__ = "AGPL v3"
import os
from django.http import Http404, HttpResponse
from django.shortcuts import get_object_or_404, redirect
from django.urls import reverse
from submissions.helpers import check_verified_author
from submissions.models import Submission
[docs]def preprint_pdf(request, identifier_w_vn_nr):
"""Open pdf of SciPost preprint or redirect to arXiv page."""
submission = get_object_or_404(Submission, preprint__identifier_w_vn_nr=identifier_w_vn_nr)
preprint = submission.preprint
if preprint.url:
return redirect(preprint.url)
# Check if Contributor is author of the Submission
is_author = check_verified_author(submission, request.user)
if not submission.visible_public and not is_author:
if not request.user.is_authenticated:
raise Http404
elif not request.user.has_perm(
'scipost.can_assign_submissions') and not submission.fellows.filter(
contributor__user=request.user).exists():
raise Http404
__, extension = os.path.splitext(preprint._file.name)
if extension == '.pdf':
response = HttpResponse(preprint._file.read(), content_type='application/pdf')
filename = '{}.pdf'.format(preprint.identifier_w_vn_nr)
response['Content-Disposition'] = ('filename=' + filename)
else:
response = HttpResponse(preprint._file.read(), content_type='application/force-download')
filename = '{}{}'.format(preprint.identifier_w_vn_nr, extension)
response['Content-Disposition'] = ('filename=' + filename)
return response
[docs]def preprint_latest_pdf(request, identifier_wo_vn_nr):
submission = Submission.objects.filter(
preprint__identifier_wo_vn_nr=identifier_wo_vn_nr).first()
if not submission:
raise Http404
return redirect(reverse('preprints:pdf',
args=[submission.get_latest_version().preprint.identifier_w_vn_nr,]))