def build_invite(label: str, connection_key: str, endpoint: str) -> str:
msg = Message({
'@type': INVITE,
'label': label,
'recipientKeys': [connection_key],
'serviceEndpoint': endpoint,
'routingKeys': []
})
b64_invite = base64.urlsafe_b64encode(bytes(msg.serialize(),
'utf-8')).decode('ascii')
return '{}?c_i={}'.format(endpoint, b64_invite)
def create_invitation(self):
""" Create and return an invite. """
conn_vk, conn_sk = crypto.create_keypair()
connection = StaticConnection(conn_vk,
conn_sk,
b'',
'',
dispatcher=self.dispatcher)
conn_vk_b58 = crypto.bytes_to_b58(conn_vk)
self.connections[conn_vk_b58] = connection
connection.state = ConnectionState()
connection.state.role = Roles.INVITER
connection.state.transition(Events.SEND_INVITE)
invitation = Message({
'@type': self.type('invitation'),
'label': 'static-iiw',
'recipientKeys': [conn_vk_b58],
'serviceEndpoint': self.endpoint,
'routingKeys': []
})
invitation_url = '{}?c_i={}'.format(
self.endpoint,
crypto.bytes_to_b64(invitation.serialize().encode()))
return connection, invitation_url