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Comrad/komrade/backend/switchboard.py
quadrismegistus 875c19d2c2 ??
2020-09-05 22:23:11 +01:00

119 lines
4.0 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.operators import *
# external imports
from flask import Flask, request, jsonify
from flask_classful import FlaskView
### ACTUAL PHONE CONNECTIONS
class TheTelephone(Logger):
"""
API client class for Caller to interact with The Operator.
"""
def __init__(self, caller):
self.caller = caller
@property
def sess(self):
"""
Get connection to Tor
"""
if not hasattr(self,'_sess'):
self._sess = get_tor_proxy_session()
return self._sess
def req(self,json_coming_from_phone={},json_coming_from_caller={}):
# Two parts of every request:
# 1) only overall encryption layer E2EE Telephone -> Operator:
req_data = []
if json_coming_from_phone:
json_coming_from_phone_s = json.dumps(json_coming_from_phone)
json_coming_from_phone_b = json_coming_from_phone_s.encode()
#json_coming_from_phone_b_encr = SMessage(TELEPHONE_PRIVKEY,OPERATOR_PUBKEY).wrap(json_coming_from_phone_b)
else:
json_coming_from_phone_b=b''
# 2) (optional) extra E2EE encrypted layer Caller -> Operator
if json_coming_from_caller:
json_coming_from_caller_s = json.dumps(json_coming_from_caller)
json_coming_from_caller_b = json_coming_from_caller_s.encode()
json_coming_from_caller_b_encr = SMessage(self.caller.privkey_,OPERATOR_PUBKEY).wrap(json_coming_from_caller_b)
else:
json_coming_from_caller_b_encr = b''
# encrypt whole package E2EE, Telephone to Operator
req_data = json_coming_from_phone_b + BSEP + json_coming_from_caller_b_encr
req_data_encr = SMessage(TELEPHONE_PRIVKEY, OPERATOR_PUBKEY).wrap(req_data)
req_data_encr_b64 = b64encode(req_data_encr)
self.log('req_data_encr_b64 <--',req_data_encr_b64)
# send!
req_data_encr_b64_str = req_data_encr_b64.decode('utf-8')
res = self.sess.post(OPERATOR_API_URL + req_data_encr_b64)
self.log('result from operator?',res)
return res
def forge_new_keys(self, name, pubkey_is_public=False):
req_json = {'name':name, 'pubkey_is_public':pubkey_is_public}
req_json_s = jsonify(req_json)
req_json_s_encr = SMessage()
return self.sess.post(json=req_json)
OPERATOR = None
class TheSwitchboard(FlaskView, Logger):
#default_methods = ['POST']
#def get(self):
# return "We're sorry; we are unable to complete your call as dialed. Please check the number and dial again, or call your operator to help you."
def get(self,encr_b64_str):
return 'hello?'
# first try to get from string to bytes
self.log('incoming <--',encr_b64_str)
try:
encr_b64_b = encr_b64_str.decode('utf-8')
self.log('encr_b64_b',encr_b64_b)
encr_b = b64decode(encr_b64_b)
self.log('encr_b',encr_b)
except UnicodeDecodeError:
return OPERATOR_INTERCEPT_MESSAGE
if not encr_b64_str: return OPERATOR_INTERCEPT_MESSAGE
data = request.data
self.log('incoming_data! <--',data)
# step 1: decode
data = b64decode(data)
self.log('decoded data:',data)
# step 2: decrypt from phone
data = SMessage(OPERATOR.privkey_, TELEPHONE_PUBKEY).unwrap(data)
self.log('decrypted data:',data)
# step 3: give to The Operator
res = OPERATOR.route(data)
# return response to caller
return res
def run_forever(port='8080'):
global OPERATOR
OPERATOR = TheOperator()
app = Flask(__name__)
TheSwitchboard.register(app, route_base='/op/', route_prefix=None)
app.run(debug=True, port=port, host='0.0.0.0')