Comrad/komrade/backend/the_operator.py

"""
There is only one operator!
Running on node prime.
"""
# internal imports
import os,sys; sys.path.append(os.path.abspath(os.path.join(os.path.abspath(os.path.join(os.path.dirname(__file__),'..')),'..')))
from komrade import *
from komrade.backend import *


# print(PATH_OPERATOR_WEB_KEYS_URL)


class TheOperator(Operator):
    """
    The remote operator
    """
    @property
    def phone(self):
        global TELEPHONE
        from komrade.backend.the_telephone import TheTelephone
        if not TELEPHONE: TELEPHONE=TheTelephone()
        return TELEPHONE
    

    def __init__(self, name = OPERATOR_NAME, passphrase='acc'):
        """
        Boot up the operator. Requires knowing or setting a password of memory.
        """
        super().__init__(
            name,
            passphrase,
            path_crypt_keys=PATH_CRYPT_OP_KEYS,
            path_crypt_data=PATH_CRYPT_OP_DATA
        )
        self._keychain = self.operator_keychain
        
    def ring(self,
        from_caller=None,
        to_caller=None,
        json_phone2phone={}, 
        json_caller2phone={},   # (person) -> operator or operator -> (person)
        json_caller2caller={}):
        
        encr_msg_to_send = super().ring(
            from_phone=self,
            to_phone=self.phone,
            from_caller=from_caller,
            to_caller=to_caller,
            json_phone2phone=json_phone2phone, 
            json_caller2phone=json_caller2phone,   # (person) -> operator
            json_caller2caller=json_caller2caller)

        return self.send(encr_msg_to_send)

    # ends the ring_ring() chain
    def answer_phone(self,data_b):
        # route incoming call from the switchboard
        self.log('Hello, this is the Operator. You said: ',data_b)

        # unseal
        msg_obj = self.unseal_msg(
            data_b,
            from_whom=self.phone
        )
        self.log(f'Operator understood message: {msg_obj} {msg_obj.route}')
        
        # decrypt?
        msg_obj.decrypt()

        # carry out message instructions
        resp_msg_obj = self.pronto_pronto(msg_obj) #,route=msg_obj.route)
        self.log('route_result <-',resp_msg_obj)

        # send back down encrypted
        msg_sealed = self.seal_msg(resp_msg_obj.msg_d)

        # return back to phone and back down to chain
        return msg_sealed


    def find_pubkey(self):
        return self.operator_keychain['pubkey']


    def send(self,encr_data_b):
        self.log(type(encr_data_b),encr_data_b,'sending!')
        return encr_data_b

    ### ROUTES
        
    def does_username_exist(self,name,**data):
        pubkey=self.crypt_keys.get(name,prefix='/pubkey/')
        self.log(f'looking for {name}, found {pubkey} as pubkey')
        return bool(pubkey)

    def register_new_user(self,name,pubkey,**data):
        # self.log('setting pubkey under name')
        success,ck,cv = self.crypt_keys.set(name,pubkey,prefix='/pubkey/')
        self.log('got result from crypt:',res)
        
        # check input back from crypt
        assert cv==pubkey
        assert name==self.crypt_keys.key2hash(name) #(self.crypt_keys.prepare_key()
        
        res = {
            'success':success,
            'pubkey':cv,
            'name':name,
        }
        
        ## success msg
        if success:
            res['status'] = f'''
{OPERATOR_INTRO} I have managed to register user {name}.
I've stored their public key ({b64encode(cv).decode()}) under their name,
in a disguished (hashed with salt) form: {ck}.
'''
        else:
            res['status']= f'''
{OPERATOR_INTRO}. I'm sorry, but I can'tregister username {name}.
Someone has already registered under that name.'''

        self.log('Operator returning result:',res)

        return res
        




def test_op():
    from komrade.backend.the_telephone import TheTelephone

    
    op = TheOperator()
    # op.boot()
    
    keychain_op = op.keychain(force=True)

    
    phone = TheTelephone()
    # phone.boot()
    keychain_ph = phone.keychain(force=True)
    
    
    from pprint import pprint
    print('REASSEMBLED OPERATOR KEYCHAIN')
    pprint(keychain_op)
    # stop

    print('REASSEMBLED TELEPHONE KEYCHAIN')
    pprint(keychain_ph)
    
    # print(op.pubkey(keychain=keychain))
    # print(op.crypt_keys.get(op.pubkey(), prefix='/privkey_encr/'))
    # print(op.crypt_keys.get(op.name, prefix='/pubkey_encr/'))
    # print(op.pubkey_)


    # stop
    
    # pubkey = op.keychain()['pubkey']
    # pubkey_b64 = b64encode(pubkey)
    # print(pubkey)

if __name__ == '__main__': test_op()