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Comrad/komrade/backend/operators.py
quadrismegistus 3dd8037429 updates
2020-09-09 15:57:56 +01:00

136 lines
4.2 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)
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 a {type(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)
# encrypte 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
from komrade.backend.messages import Message
msg_obj = Message(msg_d)
# decrypt msg
msg_obj.decrypt()
return msg_obj
# def package_msg_to(self,msg,another):
# # otherwise send msg
# return self.compose_msg_to(msg,another)
# def unpackage_msg_from(self,msg_encr_b,another):
# return self.decrypt_from_send(
# msg_encr_b,
# from_pubkey=another.pubkey,
# to_privkey=self.privkey
# )
# self = caller
# towhom = phone
# bywayof = op
def ring_ring(self,msg,to_whom,get_resp_from=None):
# get encr msg obj
msg_obj = self.compose_msg_to(msg, to_whom)
# pass onto next person
# 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_b = get_resp_from(msg_sealed)
# unseal msg
resp_msg_obj = self.unseal_msg(resp_msg_b)
return resp_msg_obj