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Comrad/komrade/backend/the_operator.py
quadrismegistus 234b9b5766 major changes
2020-09-04 13:46:22 +01:00

253 lines
7.2 KiB
Python

"""
There is only one operator!
Running on node prime.
"""
import os,sys; sys.path.append(os.path.abspath(os.path.join(os.path.abspath(os.path.join(os.path.dirname(__file__),'..')),'..')))
from komrade.backend.crypt import Crypt
from komrade.backend.keymaker import Keymaker
from flask import Flask
from flask_classful import FlaskView
from pythemis.skeygen import KEY_PAIR_TYPE, GenerateKeyPair
from pythemis.smessage import SMessage, ssign, sverify
from pythemis.skeygen import GenerateSymmetricKey
from pythemis.scell import SCellSeal
from pythemis.exception import ThemisError
from base64 import b64encode,b64decode
from komrade import KomradeException,Logger
import getpass
PATH_HERE = os.path.dirname(__file__)
sys.path.append(PATH_HERE)
from crypt import *
### Constants
BSEP=b'||||||||||'
BSEP2=b'@@@@@@@@@@'
BSEP3=b'##########'
# paths
PATH_KOMRADE = os.path.abspath(os.path.join(os.path.expanduser('~'),'.komrade'))
PATH_OPERATOR = os.path.join(PATH_KOMRADE,'.operator')
PATH_OPERATOR_PUBKEY = os.path.join(PATH_OPERATOR,'.op.key.pub.encr')
PATH_OPERATOR_PRIVKEY = os.path.join(PATH_OPERATOR,'.op.key.priv.encr')
PATH_CRYPT_KEYS = os.path.join(PATH_OPERATOR,'.op.db.keys.crypt')
PATH_CRYPT_DATA = os.path.join(PATH_OPERATOR,'.op.db.data.encr')
# init req paths
if not os.path.exists(PATH_OPERATOR): os.makedirs(PATH_OPERATOR)
class TheOperator(Keymaker):
"""
The operator.
"""
def __init__(self, passphrase = None):
"""
Boot up the operator. Requires knowing or setting a password of memory.
"""
# If not, forge them -- only once!
if not have_keys: self.forge_keys()
# load keys
self.pubkey,self.privkey = self.get_keys()
# That's it!
def op_keychain_encr(self):
self.log('loading encrypted keys from disk')
with open(PATH_OPERATOR_PUBKEY,'rb') as f_pub, open(PATH_OPERATOR_PRIVKEY,'rb') as f_priv:
pubkey_encr = f_pub.read()
privkey_encr = f_priv.read()
self.log('Operator pubkey_encr <--',pubkey_encr)
self.log('Operator privkey <--',privkey_encr)
return (pubkey_encr,privkey_encr)
def get_op_keys(self):
# Get passphrase
passphrase = 'aa' #@ HACK!!!
self.crypt_key,self. = self.get_k
# Do I have my keys?
have_keys = self.check_keys()
pubkey_encr,privkey_encr = self.get_encypted_keys()
# decrypt according to password of memory
try:
pubkey = self.cell.decrypt(pubkey_encr)
privkey = self.cell.decrypt(privkey_encr)
except ThemisError:
self.log('\nERROR: Incorrect password of memory! Shutting down.')
exit()
# self.log(f'decrypted keys to:\npubkey={pubkey}\nprivkey={privkey}')
return (pubkey,privkey)
def check_keys(self):
self.log('checking for keys...')
have_keys = (os.path.exists(PATH_OPERATOR_PUBKEY) and os.path.exists(PATH_OPERATOR_PRIVKEY))
self.log('have_keys =',have_keys)
return have_keys
def forge_keys(self):
self.log('forging keys...')
# Initialize asymmetric keys
keypair = GenerateKeyPair(KEY_PAIR_TYPE.EC)
privkey = keypair.export_private_key()
pubkey = keypair.export_public_key()
# Also create a symmetric passworded key!
## It is up to you, forger of the keys, to remember this:
## otherwise the whole system topples!
# Encrypt private public keys
privkey = self.cell.encrypt(privkey)
pubkey = self.cell.encrypt(pubkey)
# Save
with open(PATH_OPERATOR_PUBKEY,'wb') as of: of.write(pubkey)
with open(PATH_OPERATOR_PRIVKEY,'wb') as of: of.write(privkey)
self.log('Keys forged!')
####
# Key CRUD
####
def create_keys(self,name,pubkey_is_public=False):
# Create public and private keys
keypair = GenerateKeyPair(KEY_PAIR_TYPE.EC)
privkey = keypair.export_private_key()
pubkey = keypair.export_public_key()
adminkey = GenerateSymmetricKey()
# Create decryption/permission keys
pubkey_decr = GenerateSymmetricKey()
privkey_decr = GenerateSymmetricKey()
adminkey_decr = GenerateSymmetricKey() #SCellSeal(passphrase=passphrase)
# Encrypt original keys
pubkey_encr = SCellSeal(key=pubkey_decr).encrypt(pubkey)
privkey_encr = SCellSeal(key=privkey_decr).encrypt(privkey)
adminkey_encr = SCellSeal(key=adminkey_decr).encrypt(adminkey)
# store encrypted on my hardware
self.crypt_keys.set(name,pubkey_encr,prefix='/pub_encr/')
self.crypt_keys.set(pubkey,privkey_encr,prefix='/priv_encr/')
self.crypt_keys.set(privkey,adminkey_encr,prefix='/admin_encr/')
# store permissions file?
secret_admin_val = pubkey_encr + BSEP + b'find,read,admin'
if pubkey_is_public: secret_admin_val += b'*'+BSEP+b'find'
secret_admin_val_encr = SCellSeal(key=adminkey).encrypt(secret_admin_val)
self.crypt_keys.set(adminkey,secret_admin_val_encr,prefix='/perm_encr/')
# keep public key?
if pubkey_is_public: self.crypt_keys.set(name,pubkey_decr,prefix='/pub_decr/')
# send back decryption keys to client
return (pubkey_decr, privkey_decr, adminkey_decr)
# Magic key attributes
## DECRYPTED REAL FINAL KEYS
def pubkey(self, name, keychain_decr):
pubkey_decr = keychain_decr.get('pubkey_decr')
pubkey_encr = self.pubkey_encr(name)
if not pubkey_decr or not pubkey_encr: return None
pubkey = SCellSeal(key=pubkey_decr).decrypt(pubkey_encr)
return pubkey
def privkey(self, name, keychain_decr):
privkey_decr = keychain_decr.get('privkey_decr')
privkey_encr = self.privkey_encr(name, keychain_decr)
if not privkey_decr or not privkey_encr: return None
privkey = SCellSeal(key=privkey_decr).decrypt(privkey_encr)
return privkey
def adminkey(self, name, keychain_decr):
adminkey_decr = keychain_decr.get('adminkey_decr')
adminkey_encr = self.adminkey_encr(name, keychain_decr)
if not adminkey_decr or not adminkey_encr: return None
adminkey = SCellSeal(key=adminkey_decr).decrypt(adminkey_encr)
return adminkey
def exists(self,name):
return self.crypt_keys.get(name,prefix='/pub_encr/') is not None
def login(self, name, keychain_encr):
pass
class TheOperatorView(FlaskView):
route_prefix = '/'
def index(self):
print('hello')
return "<br>".join(quotes)
def something(self):
return 'something'
def get_random_id():
import uuid
return uuid.uuid4().hex
def get_random_binary_id():
import base64
idstr = get_random_id()
return base64.b64encode(idstr.encode())
## Main
def run_forever():
app = Flask(__name__)
TheOperator.register(app, route_base='/op/', route_prefix=None)
app.run(debug=True)
if __name__ == '__main__':
#run_forever()
op = TheOperator()
#print(op.crypt_keys.set('aaaa','1111'))
# print(op.crypt_keys.get('aaaa'))
op.create_keys(name='marx')