Rearrange source to src dir.

[redakcja.git] / src / cover / views.py

diff --git a/src/cover/views.py b/src/cover/views.py
new file mode 100644 (file)
index 0000000..3f2c46f
--- /dev/null
+++ b/src/cover/views.py
@@ -0,0 +1,141 @@
+# -*- 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 make_cover
+    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_bytes(xml)
+    except:
+        return HttpResponseRedirect(os.path.join(settings.STATIC_URL, "img/sample_cover.png"))
+    cover = make_cover(info)
+    response = HttpResponse(content_type=cover.mime_type())
+    img = cover.image().resize(PREVIEW_SIZE, Image.ANTIALIAS)
+    img.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 make_cover
+    from librarian.dcparser import BookInfo
+
+    xml = request.POST['xml']
+    try:
+        info = BookInfo.from_bytes(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 = make_cover(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()))
+    img = cover.image().resize(PREVIEW_SIZE, Image.ANTIALIAS)
+    img.save(os.path.join(settings.MEDIA_ROOT, fname))
+    return HttpResponse(os.path.join(settings.MEDIA_URL, fname))
+
+
+@active_tab('cover')
+def image(request, pk):
+    img = get_object_or_404(Image, pk=pk)
+
+    if request.user.has_perm('cover.change_image'):
+        if request.method == "POST":
+            form = forms.ImageEditForm(request.POST, request.FILES, instance=img)
+            if form.is_valid():
+                form.save()
+                return HttpResponseRedirect(img.get_absolute_url())
+        else:
+            form = forms.ImageEditForm(instance=img)
+        editable = True
+    else:
+        form = forms.ReadonlyImageEditForm(instance=img)
+        editable = False
+
+    return render(request, "cover/image_detail.html", {
+        "object": Image.objects.get(id=img.id),
+        "form": form,
+        "editable": editable,
+    })
+
+
+def image_file(request, pk):
+    img = get_object_or_404(Image, pk=pk)
+    return HttpResponseRedirect(img.file.url)
+
+
+@active_tab('cover')
+def image_list(request):
+    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,
+        })