| def main(request, response): | |
| token = request.GET.first("token", None) | |
| is_query = request.GET.first("query", None) != None | |
| with request.server.stash.lock: | |
| value = request.server.stash.take(token) | |
| count = 0 | |
| if value != None: | |
| count = int(value) | |
| if is_query: | |
| if count < 2: | |
| request.server.stash.put(token, count) | |
| else: | |
| count = count + 1 | |
| request.server.stash.put(token, count) | |
| if is_query: | |
| headers = [("Count", count)] | |
| content = "" | |
| return 200, headers, content | |
| else: | |
| content = "body { background: rgb(0, 128, 0); }" | |
| if count > 1: | |
| content = "body { background: rgb(255, 0, 0); }" | |
| headers = [("Content-Type", "text/css"), | |
| ("Cache-Control", "private, max-age=0, stale-while-revalidate=60")] | |
| return 200, headers, content |