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Comrad/komrade/backend/komrades.py
quadrismegistus b104d0a5bb updates
2020-09-13 15:48:26 +01:00

265 lines
9.2 KiB
Python

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 *
from komrade.backend.keymaker import *
class Komrade(Caller):
def __init__(self, name=None, passphrase=DEBUG_DEFAULT_PASSPHRASE):
super().__init__(name=name,passphrase=passphrase)
self.passphrase=passphprase if passphrase else None
if SHOW_STATUS:
from komrade.cli import CLI
self.cli = CLI(name=name, persona=self)
# self.boot(create=False)
# def boot(self,create=False):
# # Do I already have my keys?
# # yes? -- login
# keys = self.keychain()
# if keys.get('pubkey') and keys.get('privkey'):
# self.log('booted!')
# return True
# # If not, forge them -- only once!
# if not have_keys and create:
# self.get_new_keys()
def exists_locally_as_contact(self):
return self.pubkey and not self.privkey
def exists_locally_as_Komrade(self):
return self.pubkey and self.privkey
def exists_on_server(self):
answer = self.phone.ring_ring({
'_route':'does_username_exist',
'name':self.name
})
self.log('answer??',answer)
return answer
# login?
# def login(self):
# if keys.get('pubkey') and keys.get('privkey')
def register(self, name = None, passphrase = None, is_group=None, show_intro=0,show_body=True):
# print('got name:',name)
## Defaults
if name and not self.name: self.name=name
if not name and self.name: name=self.name
# if not name and not self.name: name=''
# print('got name',name)
## 1) Have name?
tolog=''
if SHOW_STATUS and show_intro:
self.name = name = self.cli.status_keymaker_part1(name)
elif not name:
self.name = name = input('\nHello, this is Komrade @')
print('\nI would like to sign up for the socialist network revolution.',flush=True)
do_pause()
else:
print(f'Hello, this is Komrade @{name}.\n\nI would like to sign up for the socialist network revolution.')
do_pause()
clear_screen()
self.log(f'@Keymaker: Excellent. But to communicate with komrades securely,\nyou must first cut your public & private encryption keys. ')
# do_pause()
## 2) Make pub public/private keys
keypair = KomradeAsymmetricKey()
pubkey,privkey = keypair.pubkey_obj,keypair.privkey_obj
self.log(f'@Keymaker: I have cut for you a private and public asymmetric key pair\nusing the Elliptic Curve algorithm from Themis cryptography library:\n\n(1) {pubkey}\n\n(2) {privkey}{ART_KEY_PAIR}',clear=False,pause=True)
## 3) Have passphrase?
if SHOW_STATUS and not passphrase:
passphrase = self.cli.status_keymaker_part2(name,passphrase,pubkey,privkey,hasher,self)
else:
if not passphrase: passphrase = DEBUG_DEFAULT_PASSPHRASE
while not passphrase:
passphrase=getpass(f'@Keymaker: Enter a memorable password to encrypt your private key with: \n\n@{self.name}: ')
clear_screen()
self.passphrase=passphrase
## 4) Get hashed password
passhash = hasher(passphrase)
self.log(f'''@Keymaker: I have replaced your password with a disguised, hashed version\nusing a salted SHA-256 algorithm from python's hashlib:\n\n\t{make_key_discreet_str(passhash)}''')
## 5) Encrypt private key
privkey_decr = KomradeSymmetricKeyWithPassphrase(passphrase)
privkey_encr = privkey_decr.encrypt(privkey.data)
privkey_encr_obj = KomradeEncryptedAsymmetricPrivateKey(privkey_encr)
self.log(f"@Keymaker: Store your private key on your device hardware ONLY\nas it was encrypted by your password-generated key:\n\n[Encrypted Private Key]\n({make_key_discreet_str(privkey_encr_obj.data_b64)})")
## 6) Test keychain works
privkey_decr2 = KomradeSymmetricKeyWithPassphrase(passphrase)
assert privkey_decr2.decrypt(privkey_encr) == privkey.data
self._keychain['pubkey']=pubkey
self._keychain['privkey_encr']=privkey_encr_obj
# self._keychain['privkey_decr']=privkey_decr
# we should be able to reassemble privkey now?
# self.log('this is my keychain now:')
assert 'privkey' in self.keychain()
# self.log('My keychain now looks like:',dict_format(self.keychain()))
## 6) More narration?
if SHOW_STATUS:
self.cli.status_keymaker_part3(privkey,privkey_decr,privkey_encr,passphrase)
## 7) Save data to server
data = {
'name':name,
'pubkey': pubkey.data,
}
self.log('@Keymaker: Store your public key both on your device hardware\nas well as register it with Komrade @Operator on the remote server:\n\n',dict_format(data,tab=2))
# ring operator
# call from phone since I don't have pubkey on record on Op yet
# self.log('my keychain:',self._keychain,pubkey,self.op._keychain)
resp_msg_d = self.ring_ring(
{
'name':name,
'pubkey': pubkey.data,
},
route='register_new_user'
)
if not resp_msg_d.get('success'):
self.log(f'Registration failed. Message from operator was:\n\n{dict_format(resp_msg_d)}')
return
# otherwise, save things on our end
self.log(f'Registration successful. Message from operator was:\n\n{dict_format(resp_msg_d)}')
self.name=resp_msg_d.get('name')
pubkey_b = resp_msg_d.get('pubkey')
sec_login = resp_msg_d.get('secret_login')
pubkey=self._keychain['pubkey']=KomradeAsymmetricPublicKey(pubkey_b)
uri_id = b64enc(pubkey_b)
self.crypt_keys.set(
self.name,
pubkey_b,
prefix='/pubkey/')
self.crypt_keys.set(
uri_id,
self.name,
prefix='/name/')
self.crypt_keys.set(
uri_id,
sec_login,
prefix='/secret_login/'
)
self.crypt_keys.set(
uri_id,
privkey_encr_obj.data,
prefix='/privkey_encr/'
)
self.log(f'''Now saving name and public key on local device:''')
# save qr too:
uri_id = b64enc(pubkey_b)
qr_str=self.qr_str(uri_id)
fnfn=self.save_uri_as_qrcode(uri_id)
# self.log(f'saved public key as QR code to:\n {fnfn}\n\n{qr_str}')
return resp_msg_d
# done!
self.log(f'Congratulations. Welcome, Komrade {self}.')
@property
def secret_login(self):
return self.crypt_keys.get(
self.pubkey.data_b64,
prefix='/secret_login/'
)
def login(self,passphrase=None):
# check hardware
if not self.pubkey:
self.log('''Login impossible. I do not have this komrade's public key, much less private one.''')
return
if not self.privkey_encr:
self.log('''Login impossible. I do not have this komrade's private key on this hardware.''')
return
# check password
if not passphrase: passphrase=self.passphrase
# while not passphrase:
# from getpass import getpass
# passphrase = getpass('@Keymaker: Enter password for {self} in order to decrypt the encrypted private key:\n\n')
# assemble privkey?
privkey = self.keychain(passphrase=passphrase).get('privkey')
if not privkey:
self.log('''Login impossible. I do not have this komrade's private key on this hardware.''')
return
# compose message
msg = {
'name':self.name,
'pubkey':self.pubkey.data,
'secret_login':self.secret_login
}
# ask operator and get response
resp_msg = self.ring_ring(
msg,
route='login'
)
# get result
self.log('Got result back from operator:',resp_msg)
return resp_msg
def ring_ring(self,msg,route=None,**y):
if type(msg)==dict and not ROUTE_KEYNAME in msg:
msg[ROUTE_KEYNAME]=route
return super().ring_ring(msg,caller=self,**y)
def send_msg_to(self,msg,to_whom):
msg_e2e = self.compose_msg_to(msg,to_whom)
msg.encrypt()
{'_route':'deliver_msg_to', 'msg':msg}
return self.ring_ring(msg)
def test_register():
import random
num = random.choice(list(range(0,1000)))
botname=f'marx{str(num).zfill(3)}'
marxbot = Komrade(botname)
# marxbot=Komrade()
marxbot.register(passphrase='spectre')
if __name__=='__main__':
test_register()
# marx = Komrade('marx')
# elon = Komrade('elon')
# marx.register()
# # elon.register()
# # person.register()
# # print(person.pubkey)
# # elon.send_msg_to('youre dumb',marx)
# #Caller('elon').ring_ring({'_route':'say_hello','msg':'my dumb message to operator'})
# # print(marx.exists_on_server())