def contribute(base_url: str, key_file: str, challenge_file: str,
contribute_cb: Callable[[], str], wait_interval: int,
server_certificate: Optional[str], insecure: bool) -> None:
"""
Given a callback that creates a response from a challenge, download a
challenge, create the response via the callback, and sign and upload it.
"""
# Check key upfront
with open(key_file, "rb") as key_f:
sk = import_signing_key(key_f.read())
print("Got key")
client = Client(base_url, server_certificate, insecure)
if wait_interval:
verification_key = get_verification_key(sk)
wait_for_turn(client, wait_interval, verification_key)
# Get challenge
client.get_challenge(challenge_file)
print("Got challenge")
# Perform the contribution
response_file = contribute_cb()
# Sign and upload
_upload_response(client, response_file, sk)
def upload_response(client: Client, response_file: str, key_file: str) -> None:
"""
Given some response file and a key, sign the response and upload the
coordinator connected to by client.
"""
with open(key_file, "rb") as key_f:
sk = import_signing_key(key_f.read())
_upload_response(client, response_file, sk)