import time
def main(request, response):
response.headers.set("Cache-Control", "no-store")
uuid = request.GET[b"uuid"]
wait_for_prefetch_start_uuid = None
if b"wait_for_prefetch_uuid" in request.GET:
wait_for_prefetch_start_uuid = request.GET[b"wait_for_prefetch_uuid"]
prefetch = request.headers.get(
"Sec-Purpose", b"").decode("utf-8").startswith("prefetch")
if b"unblock" in request.GET:
request.server.stash.put(uuid, 0)
return ''
if b"wait_for_prefetch" in request.GET:
if wait_for_prefetch_start_uuid is None:
return ''
wait_for_prefetch = None
while wait_for_prefetch is None:
time.sleep(0.1)
wait_for_prefetch = request.server.stash.take(wait_for_prefetch_start_uuid)
return ''
if b"nvs_header" in request.GET:
nvs_header = request.GET[b"nvs_header"]
response.headers.set("No-Vary-Search", nvs_header)
if prefetch:
if wait_for_prefetch_start_uuid is not None:
request.server.stash.put(wait_for_prefetch_start_uuid, 0)
nvswait = None
while nvswait is None:
time.sleep(0.1)
nvswait = request.server.stash.take(uuid)
content = (f'<!DOCTYPE html>\n'
f'<script src="/common/dispatcher/dispatcher.js"></script>\n'
f'<script src="utils.sub.js"></script>\n'
f'<script>\n'
f' window.requestHeaders = {{\n'
f' purpose: "{request.headers.get("Purpose", b"").decode("utf-8")}",\n'
f' sec_purpose: "{request.headers.get("Sec-Purpose", b"").decode("utf-8")}",\n'
f' referer: "{request.headers.get("Referer", b"").decode("utf-8")}",\n'
f' }};\n'
f' const uuid = new URLSearchParams(location.search).get("uuid");\n'
f' window.executor = new Executor(uuid);\n'
f'</script>\n')
return content
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