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def main(request, response):
headers = [(b"Content-Type", b"text/plain")]
headers.append((b"Access-Control-Allow-Origin", b"*"))
if request.method == u"GET":
token = request.GET.first(b"token")
value = request.server.stash.take(token)
if value == None:
body = u"0"
else:
if request.GET.first(b"check", None) == b"keep":
request.server.stash.put(token, value)
body = u"1"
return headers, body
if request.method == u"OPTIONS":
if not b"Access-Control-Request-Method" in request.headers:
response.set_error(400, u"No Access-Control-Request-Method header")
return u"ERROR: No access-control-request-method in preflight!"
headers.append((b"Access-Control-Allow-Methods",
request.headers[b'Access-Control-Request-Method']))
if b"max_age" in request.GET:
headers.append((b"Access-Control-Max-Age", request.GET[b'max_age']))
if b"token" in request.GET:
request.server.stash.put(request.GET.first(b"token"), 1)
headers.append((b"Access-Control-Allow-Headers", b"x-print"))
body = request.headers.get(b"x-print", b"NO")
return headers, body