+
+ if not request.user.is_authenticated():
+ return HttpResponseForbidden("Not authorized.")
+
+ return JSONResponse(images)
+ except (IndexError, OSError):
+ logger.exception("Unable to fetch gallery")
+ raise http.Http404
+
+
+@never_cache
+def diff(request, chunk_id):
+ revA = int(request.GET.get('from', 0))
+ revB = int(request.GET.get('to', 0))
+
+ if revA > revB:
+ revA, revB = revB, revA
+
+ if revB == 0:
+ revB = None
+
+ doc = get_object_or_404(Chunk, pk=chunk_id)
+ if not doc.book.accessible(request):
+ return HttpResponseForbidden("Not authorized.")
+
+ # allow diff from the beginning
+ if revA:
+ docA = doc.at_revision(revA).materialize()
+ else:
+ docA = ""
+ docB = doc.at_revision(revB).materialize()
+
+ return http.HttpResponse(nice_diff.html_diff_table(docA.splitlines(),
+ docB.splitlines(), context=3))
+
+
+@never_cache
+def revision(request, chunk_id):
+ doc = get_object_or_404(Chunk, pk=chunk_id)
+ if not doc.book.accessible(request):
+ return HttpResponseForbidden("Not authorized.")
+ return http.HttpResponse(str(doc.revision()))
+
+
+@never_cache
+def history(request, chunk_id):
+ # TODO: pagination
+ doc = get_object_or_404(Chunk, pk=chunk_id)
+ if not doc.book.accessible(request):
+ return HttpResponseForbidden("Not authorized.")
+
+ changes = []
+ for change in doc.history().reverse():
+ changes.append({
+ "version": change.revision,
+ "description": change.description,
+ "author": change.author_str(),
+ "date": change.created_at,
+ "publishable": _("Publishable") + "\n" if change.publishable else "",
+ "tag": ',\n'.join(unicode(tag) for tag in change.tags.all()),
+ })
+ return JSONResponse(changes)
+
+
+@require_POST
+@ajax_require_permission('catalogue.can_pubmark')
+def pubmark(request, chunk_id):
+ form = forms.DocumentPubmarkForm(request.POST, prefix="pubmark")
+ if form.is_valid():
+ doc = get_object_or_404(Chunk, pk=chunk_id)
+ if not doc.book.accessible(request):
+ return HttpResponseForbidden("Not authorized.")
+
+ revision = form.cleaned_data['revision']
+ publishable = form.cleaned_data['publishable']
+ change = doc.at_revision(revision)
+ if publishable != change.publishable:
+ change.set_publishable(publishable)
+ return JSONResponse({"message": _("Revision marked")})
+ else:
+ return JSONResponse({"message": _("Nothing changed")})
+ else:
+ return JSONFormInvalid(form)
+
+
+def themes(request):
+ prefix = request.GET.get('q', '')
+ return http.HttpResponse('\n'.join([str(t) for t in Theme.objects.filter(name__istartswith=prefix)]))