def _gdk_resolve(self, auth_handler):
# Processes and handles the state of calls that need authentication.
# The authentication process works as a state machine and may require
# input to progress. This example only uses email as a authentication
# method. If you would like to user other methods such as sms, phone,
# gauth or a hardware device see:
# https://github.com/Blockstream/green_cli/blob/842697b1c6e382487a2e00606c17d6637fe62e7b/green_cli/green.py#L75
while True:
status = gdk.auth_handler_get_status(auth_handler)
status = json.loads(status)
state = status['status']
if state == 'error':
raise RuntimeError(
f'\nAn error occurred authenticating the call: {status}')
if state == 'done':
print('\nAuthentication succeeded or not required\n')
return status['result']
if state == 'request_code':
authentication_factor = 'email'
print(f'\nCode requested via {authentication_factor}.')
gdk.auth_handler_request_code(auth_handler,
authentication_factor)
elif state == 'resolve_code':
resolution = input(
'\nPlease enter the authentication code you received: ')
gdk.auth_handler_resolve_code(auth_handler, resolution)
elif state == 'call':
gdk.auth_handler_call(auth_handler)
def _gdk_resolve(auth_handler):
"""Resolve a GA_auth_handler
GA_auth_handler instances are returned by some gdk functions. They represent a state machine
that drives the process of interacting with the user for two factor authentication or
authentication using some external (hardware) device.
"""
while True:
status = gdk.auth_handler_get_status(auth_handler)
status = json.loads(status)
logging.debug('auth handler status = %s', status)
state = status['status']
logging.debug('auth handler state = %s', state)
if state == 'error':
raise RuntimeError(status)
if state == 'done':
logging.debug('auth handler returning done')
return status['result']
if state == 'request_code':
# request_code only applies to 2fa requests
authentication_factor = context.twofac_resolver.select_auth_factor(
status['methods'])
logging.debug('requesting code for %s', authentication_factor)
gdk.auth_handler_request_code(auth_handler, authentication_factor)
elif state == 'resolve_code':
# resolve_code covers two different cases: a request for authentication data from some
# kind of authentication device, for example a hardware wallet (but could be some
# software implementation) or a 2fa request
if status['device']:
logging.debug(
'resolving auth handler with authentication device')
resolution = context.authenticator.resolve(status)
else:
logging.debug('resolving two factor authentication')
resolution = context.twofac_resolver.resolve(status)
logging.debug('auth handler resolved: %s', resolution)
gdk.auth_handler_resolve_code(auth_handler, resolution)
elif state == 'call':
gdk.auth_handler_call(auth_handler)
