def parse(cls, token, sender, recipient):
from jose.jwe import Message as JweMessage, NotJweException
from jose.jws import Message as JwsMessage
parts = token.split('.')
if len(parts) < 2:
# TODO: Define exception
raise Exception("not JWT")
try:
obj = JweMessage.parse_token(token, sender, recipient)
except NotJweException:
obj = JwsMessage.parse_token(token, sender, recipient)
if not obj:
return None
verified = obj.verify()
header = obj.header()
if header.cty == 'JWT':
return cls.parse(obj.text(), sender, recipient)
return obj and cls.from_json(obj.text(), verified=verified) or None
