def get(self, action, asset_key, filename=''):
asset_key = ndb.Key(urlsafe=asset_key)
asset = asset_key.get()
if not asset:
return self.error(404)
if not asset.blob:
return self.error(404)
blob_info = blobstore.get(asset.blob)
if not blob_info:
return self.error(404)
value = BlobReader(blob_info.key(), buffer_size=blob_info.size).read()
# The code works with or without the following line.
#value = unicode(value.decode('utf8')).encode('utf8')[0:-2]
value = base64.b64decode(value.split('base64,')[1])
self.response.body = value
self.response.headers['Content-Type'] = str(blob_info.content_type)
if action == 'get':
self.response.headers['Content-Disposition'] = str('attachment; filename=' + blob_info.filename)
return self.response
