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Comrad/komrade/backend/the_operator.py
2020-09-07 14:04:23 +01:00

304 lines
10 KiB
Python

"""
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 *
PATH_OPERATOR_WEB_KEYS_URI = hashish('keys')
PATH_OPERATOR_WEB_KEYS_FILE = f'/home/ryan/www/website-komrade/.{PATH_OPERATOR_WEB_KEYS_URI}'
PATH_OPERATOR_WEB_KEYS_URL = f'http://{KOMRADE_ONION}/op/{PATH_OPERATOR_WEB_KEYS_URI}/'
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(allow_builtin=False)
return TELEPHONE
def __init__(self, name = OPERATOR_NAME, passphrase='acc', allow_builtin=True):
"""
Boot up the operator. Requires knowing or setting a password of memory.
"""
# init req paths
# if not os.path.exists(PATH_OPERATOR): os.makedirs(PATH_OPERATOR)
if not passphrase:
passphrase=getpass.getpass('Hello, this is the Operator speaking. What is the passphrase?\n> ')
self.allow_builtin=allow_builtin
super().__init__(name,passphrase,path_crypt_keys=PATH_CRYPT_OP_KEYS,path_crypt_data=PATH_CRYPT_OP_DATA)
def decrypt_incoming(self,data):
# step 1 split:
data_unencr,data_encr_by_phone,data_encr_by_caller = data.split(BSEP)
data_unencr_by_phone,data_unencr_by_caller = None,None
self.log('data_unencr =',data_unencr)
self.log('data_encr_by_phone =',data_encr_by_phone)
self.log('data_encr_by_caller =',data_encr_by_caller)
DATA = {}
# stop1
PHONE_PUBKEY=None
MY_PRIVKEY=None
# Scan unencrypted area for half-keys
if data_unencr:
self.log('unencrypted data:',data_unencr)
assert data_unencr.count(BSEP2)==1
my_privkey_decr,phone_pubkey_decr = data_unencr.split(BSEP2)
self.log('my_privkey_decr',my_privkey_decr)
self.log('phone_pubkey_decr',phone_pubkey_decr)
# get phone pubkey
new_phone_keychain = self.phone.keychain(extra_keys={'pubkey_decr':phone_pubkey_decr},force=True)
new_op_keychain = self.keychain(extra_keys={'privkey_decr':my_privkey_decr},force=True)
PHONE_PUBKEY = new_phone_keychain.get('pubkey')
MY_PRIVKEY = new_op_keychain.get('privkey')
# Scan phone-encrypted area for json dictionary
if data_encr_by_phone:
# then try to unwrap telephone encryption
if not MY_PRIVKEY or not PHONE_PUBKEY:
self.log('!! could not assemble my or phone\'s keys. failing.')
return OPERATOR_INTERCEPT_MESSAGE
try:
data_unencr_by_phone = SMessage(MY_PRIVKEY, PHONE_PUBKEY).unwrap(data_encr_by_phone)
self.log('decrypted data !!!:',data_unencr_by_phone)
except ThemisError as e:
self.log('not really from the telephone?',e)
return OPERATOR_INTERCEPT_MESSAGE
data_unencr_by_phone_json = unpackage_from_transmission(data_unencr_by_phone)
assert type(data_unencr_by_phone_json) == dict
dict_merge(DATA, data_unencr_by_phone_json)
if data_encr_by_caller and 'name' in data_unencr_by_phone:
name=data_unencr_by_phone['name']
try:
caller = Caller(name)
self.log('got caller on phone',name,caller)
data_unencr_by_caller = SMessage(MY_PRIVKEY, caller.pubkey_).unwrap(data_encr_by_caller)
self.log('decrypted data from caller!!!:',data_unencr_by_caller)
except ThemisError as e:
self.log('not really from caller?',e)
return OPERATOR_INTERCEPT_MESSAGE
data_unencr_by_caller_json = unpackage_from_transmission(data_unencr_by_caller)
assert type(data_unencr_by_caller_json) == dict
dict_merge(DATA, data_unencr_by_caller_json)
return DATA
def encrypt_outgoing(self,json_phone={},json_caller={},caller=None):
# 1)
unencr_header = self.privkey_encr_ + BSEP2 + self.phone.pubkey_encr_
self.log('unencr_header',unencr_header)
# 2) encrypt to phone
if json_phone:
json_phone_b = package_for_transmission(json_phone)
try:
json_phone_b_encr = SMessage(
self.privkey_,
self.phone.pubkey_
).wrap(json_phone_b)
except ThemisError as e:
self.log('unable to send to phone!',e)
return OPERATOR_INTERCEPT_MESSAGE
else:
json_phone_b=b''
# 3) to caller
if json_caller and caller:
json_caller_b = package_for_transmission(json_caller)
try:
json_caller_b_encr = SMessage(
caller.privkey_,
self.pubkey_
).wrap(json_caller_b)
except ThemisError as e:
self.log('unable to send to caller!',e)
return OPERATOR_INTERCEPT_MESSAGE
else:
json_caller_b_encr = b''
req_data_encr = unencr_header + BSEP + json_phone_b_encr + BSEP + json_caller_b_encr
return req_data_encr
def recv(self,data):
# decrypt
data_in = self.decrypt_incoming(data)
# route
result = self.route(data_json)
# encrypt
data_out = self.encrypt_outgoing(result)
# send
return self.send(res)
def send(self,res):
if not len(res)==2:
self.log('!! error. argument to send() must be: (json_tophone,json_tosender)')
return
msg_tophone,msg_tocaller = res
caller=None
if msg_tocaller and 'name' in msg_tophone:
caller = Operator(msg_tophone['name'])
self.log('send!',msg_tophone,msg_tocaller,caller)
data = self.encrypt_information(json_phone=msg_tophone,json_caller=caller)
self.log('got back encr:',data)
return data
def route(self, data):
res=None
route = data.get('_route')
if not route: return OPERATOR_INTERCEPT_MESSAGE
del data['_route']
if route == 'forge_new_keys':
res = self.forge_new_keys(**data)
else:
res = OPERATOR_INTERCEPT_MESSAGE
return res# 'success!'
def forge_new_keys(self,**data):
# get keys
res = super().forge_new_keys(**data)
pkg={}
pkg['name']=data.get('name')
pkg['_keychain']=res
self.log('returned keys from keymaker.forge_new_keys:','\n'.join(res.keys()))
# return to_phone,to_caller
return (pkg,{})
def init_operators():
## CREATE OPERATOR
op = Operator(name=OPERATOR_NAME)
# save what we normally save for a client on the server -- The Op is a client from our pov
op_keys_to_keep_on_client = ['pubkey_decr']
op_keys_to_keep_on_3rdparty = ['pubkey_encr','privkey_encr']
op_keys_to_keep_on_server = ['privkey_encr',
'adminkey_encr',
'privkey_decr_encr',
'privkey_decr_decr',
'adminkey_decr_encr',
'adminkey_decr_decr']
phone_keys_to_keep_on_client = ['privkey_decr']
phone_keys_to_keep_on_3rdparty = ['privkey_encr','pubkey_encr']
phone_keys_to_keep_on_server = ['pubkey_decr']
op_decr_keys = op.forge_new_keys(
keys_to_save=op_keys_to_keep_on_server, # on server only; flipped around
keys_to_return=op_keys_to_keep_on_client + op_keys_to_keep_on_3rdparty # on clients only
)
## CREATE TELEPHONE
phone = Operator(name=TELEPHONE_NAME)
phone_decr_keys = phone.forge_new_keys(
name=TELEPHONE_NAME,
keys_to_save=phone_keys_to_keep_on_server, # on server only
keys_to_return=phone_keys_to_keep_on_client + phone_keys_to_keep_on_client # on clients only
)
THIRD_PARTY_DICT = {OPERATOR_NAME:{}, TELEPHONE_NAME:{}}
for key in op_keys_to_keep_on_3rdparty:
if key in op_decr_keys:
THIRD_PARTY_DICT[OPERATOR_NAME][key]=op_decr_keys[key]
for key in phone_keys_to_keep_on_3rdparty:
if key in phone_decr_keys:
THIRD_PARTY_DICT[TELEPHONE_NAME][key]=phone_decr_keys[key]
STORE_IN_APP = {OPERATOR_NAME:{}, TELEPHONE_NAME:{}}
for key in op_keys_to_keep_on_client:
if key in op_decr_keys:
STORE_IN_APP[OPERATOR_NAME][key]=op_decr_keys[key]
for key in phone_keys_to_keep_on_client:
if key in phone_decr_keys:
STORE_IN_APP[TELEPHONE_NAME][key]=phone_decr_keys[key]
THIRD_PARTY_DICT = package_for_transmission(THIRD_PARTY_DICT)
STORE_IN_APP = package_for_transmission(STORE_IN_APP)
with open(PATH_BUILTIN_KEYCHAIN,'wb') as of:
of.write(THIRD_PARTY_DICT)
with open(PATH_BUILTIN_KEYCHAIN,'wb') as of:
of.write(THIRD_PARTY_DICT)
print('\n'*5)
print('OPERATOR_KEYCHAIN =',package_for_transmission(op_decr_keys))
print()
print('TELEPHONE_KEYCHAIN =',package_for_transmission(phone_decr_keys))
print()
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()