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import json
from wptserve.utils import isomorphic_decode
def main(request, response):
headers = [(b"Content-Type", b"application/json"),
(b"Access-Control-Allow-Credentials", b"true")]
if b"origin" in request.headers:
headers.append((b"Access-Control-Allow-Origin", request.headers[b"origin"]))
body = u""
# If we're in a preflight, verify that `Sec-Fetch-Mode` is `cors`.
if request.method == u'OPTIONS':
if request.headers.get(b"sec-fetch-mode") != b"cors":
return (403, b"Failed"), [], body
headers.append((b"Access-Control-Allow-Methods", b"*"))
headers.append((b"Access-Control-Allow-Headers", b"*"))
else:
body = json.dumps({
u"dest": isomorphic_decode(request.headers.get(b"sec-fetch-dest", b"")),
u"mode": isomorphic_decode(request.headers.get(b"sec-fetch-mode", b"")),
u"site": isomorphic_decode(request.headers.get(b"sec-fetch-site", b"")),
u"user": isomorphic_decode(request.headers.get(b"sec-fetch-user", b"")),
})
return headers, body
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