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Comrad/komrade/backend/switchboard.py
quadrismegistus 817f61157f updates
2020-09-06 09:39:31 +01:00

77 lines
2.4 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 import *
# external imports
from flask import Flask, request, jsonify
from flask_classful import FlaskView
OPERATOR = None
from flask_classful import FlaskView, route
class TheSwitchboard(FlaskView, Logger):
#default_methods = ['POST']
def get(self,msg):
self.log('Incoming call!:',msg)
if not msg:
self.log('empty request!')
return OPERATOR_INTERCEPT_MESSAGE
# unenescape
msg = msg.replace('_','/')
if not isBase64(msg):
self.log('not valid input!')
return OPERATOR_INTERCEPT_MESSAGE
encr_b64_str = msg
# first try to get from string to bytes
self.log('incoming <--',encr_b64_str)
try:
encr_b64_b = encr_b64_str.encode('utf-8')
self.log('encr_b64_b',encr_b64_b)
except UnicodeEncodeError:
self.log('not valid unicode?')
return OPERATOR_INTERCEPT_MESSAGE
# then try to get from b64 bytes to raw bytes
try:
data = b64decode(encr_b64_b)
self.log('data',data)
self.log(f'successfully understood input')
except binascii.Error as e:
self.log('not valid b64?')
return OPERATOR_INTERCEPT_MESSAGE
# then try to unwrap top level encryption
try:
tele_pubkey = b64decode(TELEPHONE_PUBKEY)
data = SMessage(OPERATOR.privkey_, tele_pubkey).unwrap(data)
self.log('decrypted data:',data)
except ThemisError:
self.log('not really from the telephone?')
return OPERATOR_INTERCEPT_MESSAGE
# step 3: give to The Operator
try:
# return 'Success! your message was: '+str(data)
res = OPERATOR.route(data)
return res
except Exception as e:
self.log('got exception!!',e)
return OPERATOR_INTERCEPT_MESSAGE
# return response to caller
return OPERATOR_INTERCEPT_MESSAGE
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')