Comrad/komrade/backend/operators.py

# 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.crypt import *
# from komrade.backend.keymaker import *
# from komrade.backend.mazes import *
# from komrade.backend.switchboard import *
from komrade.backend import *



class Operator(Keymaker):
    
    def __init__(self, name, passphrase=DEBUG_DEFAULT_PASSPHRASE, keychain = {}, path_crypt_keys=PATH_CRYPT_CA_KEYS, path_crypt_data=PATH_CRYPT_CA_DATA):
        super().__init__(name=name,passphrase=passphrase, keychain=keychain,
                         path_crypt_keys=path_crypt_keys, path_crypt_data=path_crypt_data)
        # self.boot(create=False)

        # connect phonelines?
        from komrade.backend.phonelines import connect_phonelines
        self.operator_keychain,self.telephone_keychain,self.omega_key = connect_phonelines()

    # def boot(self,create=False):
    #      # Do I have my keys?
    #     have_keys = self.exists()
        
    #     # If not, forge them -- only once!
    #     if not have_keys and create:
    #         self.get_new_keys()
        
    
    @property
    def phone(self):
        from komrade.backend.the_telephone import TheTelephone
        if type(self)==TheTelephone: return self

        if hasattr(self,'_phone'): return self._phone

        global TELEPHONE,TELEPHONE_KEYCHAIN
        if TELEPHONE: return TELEPHONE

        self._phone=TELEPHONE=TheTelephone()

        return TELEPHONE

    @property
    def op(self):
        from komrade.backend.the_operator import TheOperator
        if type(self)==TheOperator: return self

        if hasattr(self,'_op'): return self._op

        global OPERATOR,OPERATOR_KEYCHAIN
        if OPERATOR: return OPERATOR
        
        self._op=OPERATOR=TheOperator()
        
        return OPERATOR


    def compose_msg_to(self,msg,another):
        if not self.privkey or not self.pubkey:
            raise KomradeException('why do I have no pub/privkey pair!?',self,self.name,self.pubkey,self.privkey,self.keychain())
        if not another.name or not another.pubkey:
            raise KomradeException('why do I not know whom I\'m writing to?')

        # otherwise create msg
        msg_d = {
            '_from_pub':self.pubkey,
            '_from_name':self.name,
            '_to_pub':another.pubkey,
            '_to_name':another.name,
            '_msg':msg,
        }
        # self.log(f'I am {self} packaging a message to {another}: {msg_d}')
        
        from komrade.backend.messages import Message
        msg_obj = Message(msg_d,caller=self,callee=another)
        # self.log('created msg obj:',msg_obj)
        
        

        return msg_obj

    def seal_msg(self,msg_obj):
        # make sure encrypted
        # msg_obj.encrypt()
        # return pure binary version of self's entire msg_d
        msg_b = package_for_transmission(msg_obj.msg_d)
        # encrypt by omega key
        msg_b_encr = self.omega_key.encrypt(msg_b)
        return msg_b_encr

    def unseal_msg(self,msg_b_encr):
        # decrypt by omega
        msg_b = self.omega_key.decrypt(msg_b_encr)
        # unpackage from transmission
        msg_d = unpackage_from_transmission(msg_b)
        # get message obj
        print('unsealed msg:',msg_d)
        from komrade.backend.messages import Message
        msg_obj = Message(msg_d)
        # decrypt msg
        # msg_obj.decrypt()
        return msg_obj


    def __repr__(self):
        clsname=(type(self)).__name__
        keystr='+'.join(self.top_keys)
        return f'[{clsname}] {self.name} ({keystr})'

    def ring_ring(self,msg,to_whom,get_resp_from=None):
        # ring ring
        self.log(f'ring ring! I, {self}, have been told to pass a message {msg} onto {to_whom}, by way of function {get_resp_from}')
        
        # get encr msg obj
        msg_obj = self.compose_msg_to(msg, to_whom)
        self.log(f'here is the message object I made, to send to {to_whom}: {msg_obj}')
        
        # encrypting
        msg_obj.encrypt()
        # self.log(f'now I look like: {msg_obj}')
        # get pure encrypted binary, sealed
        #msg_sealed = self.seal_msg(msg_obj)
        
        # pass onto next person...
        if not get_resp_from: get_resp_from=to_whom.ring_ring
        resp_msg_obj = get_resp_from(msg_obj)
        self.log('resp_msg_obj <-',resp_msg_obj)

        # decrypt?
        resp_msg_obj.decrypt()

        # unseal msg
        # resp_msg_obj = self.unseal_msg(resp_msg_b)

        return resp_msg_obj