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Comrad/komrade/backend/operators.py
quadrismegistus b3e1aa0d2b updates
2020-09-09 19:34:00 +01:00

139 lines
4.5 KiB
Python

# 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(recursive=True)
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