+++ /dev/null
-# -*- coding: utf-8 -*-
-#
-# This file is part of FNP-Redakcja, licensed under GNU Affero GPLv3 or later.
-# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
-#
-import os.path
-from django.conf import settings
-from django.contrib.auth.decorators import permission_required
-from django.http import HttpResponse, HttpResponseRedirect, Http404
-from django.shortcuts import get_object_or_404, render
-from django.views.decorators.csrf import csrf_exempt
-from django.views.decorators.http import require_POST
-from catalogue.helpers import active_tab
-from catalogue.models import Chunk
-from cover.models import Image
-from cover import forms
-
-
-PREVIEW_SIZE = (216, 300)
-
-
-def preview(request, book, chunk=None, rev=None):
- """Creates a cover image.
-
- If chunk and rev number are given, use version from given revision.
- If rev is not given, use publishable version.
- """
- from PIL import Image
- from librarian.cover import DefaultEbookCover
- from librarian.dcparser import BookInfo
-
- chunk = Chunk.get(book, chunk)
- if rev is not None:
- try:
- revision = chunk.at_revision(rev)
- except Chunk.change_model.DoesNotExist:
- raise Http404
- else:
- revision = chunk.publishable()
- if revision is None:
- raise Http404
- xml = revision.materialize().encode('utf-8')
-
- try:
- info = BookInfo.from_string(xml)
- except:
- return HttpResponseRedirect(os.path.join(settings.STATIC_URL, "img/sample_cover.png"))
- cover = DefaultEbookCover(info)
- response = HttpResponse(mimetype=cover.mime_type())
- image = cover.image().resize(PREVIEW_SIZE, Image.ANTIALIAS)
- image.save(response, cover.format)
- return response
-
-
-@csrf_exempt
-@require_POST
-def preview_from_xml(request):
- from hashlib import sha1
- from PIL import Image
- from os import makedirs
- from lxml import etree
- from librarian.cover import DefaultEbookCover
- from librarian.dcparser import BookInfo
-
- xml = request.POST['xml']
- try:
- info = BookInfo.from_string(xml.encode('utf-8'))
- except:
- return HttpResponse(os.path.join(settings.STATIC_URL, "img/sample_cover.png"))
- coverid = sha1(etree.tostring(info.to_etree())).hexdigest()
- cover = DefaultEbookCover(info)
-
- cover_dir = 'cover/preview'
- try:
- makedirs(os.path.join(settings.MEDIA_ROOT, cover_dir))
- except OSError:
- pass
- fname = os.path.join(cover_dir, "%s.%s" % (coverid, cover.ext()))
- image = cover.image().resize(PREVIEW_SIZE, Image.ANTIALIAS)
- image.save(os.path.join(settings.MEDIA_ROOT, fname))
- return HttpResponse(os.path.join(settings.MEDIA_URL, fname))
-
-
-@active_tab('cover')
-def image(request, pk):
- image = get_object_or_404(Image, pk=pk)
-
- if request.user.has_perm('cover.change_image'):
- if request.method == "POST":
- form = forms.ImageEditForm(request.POST, instance=image)
- if form.is_valid():
- form.save()
- return HttpResponseRedirect(image.get_absolute_url())
- else:
- form = forms.ImageEditForm(instance=image)
- editable = True
- else:
- form = forms.ReadonlyImageEditForm(instance=image)
- editable = False
-
- return render(request, "cover/image_detail.html", {
- "object": image,
- "form": form,
- "editable": editable,
- })
-
-
-@active_tab('cover')
-def image_list(request):
- objects = Image.objects.all()
- enable_add = request.user.has_perm('cover.add_image')
- return render(request, "cover/image_list.html", {
- 'object_list': Image.objects.all(),
- 'can_add': request.user.has_perm('cover.add_image'),
- })
-
-
-@permission_required('cover.add_image')
-@active_tab('cover')
-def add_image(request):
- form = ff = None
- if request.method == 'POST':
- if request.POST.get('form_id') == 'flickr':
- ff = forms.FlickrForm(request.POST)
- if ff.is_valid():
- form = forms.ImageAddForm(ff.cleaned_data)
- else:
- form = forms.ImageAddForm(request.POST, request.FILES)
- if form.is_valid():
- obj = form.save()
- return HttpResponseRedirect(obj.get_absolute_url())
- if form is None:
- form = forms.ImageAddForm()
- if ff is None:
- ff = forms.FlickrForm()
- return render(request, 'cover/add_image.html', {
- 'form': form,
- 'ff': ff,
- })