context_instance=RequestContext(request))
-@cache.cache_control(must_revalidate=True, max_age=1800)
+@cache.never_cache
def download_shelf(request, slug):
""""
Create a ZIP archive on disk and transmit it in chunks of 8KB,
be used for large dynamic PDF files.
"""
shelf = get_object_or_404(models.Tag, slug=slug, category='set')
-
+
# Create a ZIP archive
- temp = tempfile.TemporaryFile()
- archive = zipfile.ZipFile(temp, 'w', zipfile.ZIP_DEFLATED)
+ temp = temp = tempfile.TemporaryFile()
+ archive = zipfile.ZipFile(temp, 'w')
for book in models.Book.tagged.with_all(shelf):
- filename = book.html_file.path
- archive.write(filename, str('%s.html' % book.slug))
+ if book.pdf_file:
+ filename = book.pdf_file.path
+ archive.write(filename, str('%s.pdf' % book.slug))
+ if book.odt_file:
+ filename = book.odt_file.path
+ archive.write(filename, str('%s.odt' % book.slug))
+ if book.txt_file:
+ filename = book.txt_file.path
+ archive.write(filename, str('%s.txt' % book.slug))
archive.close()
- wrapper = FileWrapper(temp)
- response = HttpResponse(wrapper, content_type='application/zip')
- response['Content-Disposition'] = 'attachment; filename=%s.zip' % shelf.slug
+ response = HttpResponse(content_type='application/zip', mimetype='application/x-zip-compressed')
+ response['Content-Disposition'] = 'attachment; filename=%s.zip' % shelf.sort_key
response['Content-Length'] = temp.tell()
+
temp.seek(0)
+ response.write(temp.read())
return response