def get_token(self):
# Helper function to get the token object from the URL.
input = web.input(id=None)
if input.id:
# Load token by ID.
token = AC2DMAuthToken.get_by_id(long(input.id))
if not token:
# It does not exist.
web.notfound()
return token
else:
# New source.
token = AC2DMAuthToken()
token.new_object()
return token
