files.py 文件源码

def get(self, request, *args, **kwargs):
        # We get file last version
        try:
            version = FileVersion.objects\
                .filter(file_id=self.object.id)\
                .latest('created_at')

            mime = magic.Magic(mime=True, magic_file=settings.MAGIC_BIN)
            mime_type = mime.from_file(version.data.path)

            response = HttpResponse(version.data.read(), content_type=mime_type)
            return response
        except FileVersion.DoesNotExist:
            raise Http404