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from json import dumps
from urllib.parse import parse_qsl
def facebook_compliance_fix(session):
def _compliance_fix(r):
# if Facebook claims to be sending us json, let's trust them.
if "application/json" in r.headers.get("content-type", {}):
return r
# Facebook returns a content-type of text/plain when sending their
# x-www-form-urlencoded responses, along with a 200. If not, let's
# assume we're getting JSON and bail on the fix.
if "text/plain" in r.headers.get("content-type", {}) and r.status_code == 200:
token = dict(parse_qsl(r.text, keep_blank_values=True))
else:
return r
expires = token.get("expires")
if expires is not None:
token["expires_in"] = expires
token["token_type"] = "Bearer"
r._content = dumps(token).encode()
return r
session.register_compliance_hook("access_token_response", _compliance_fix)
return session
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