Files
aman-sys/aman/com/Euroscope.py
2021-08-15 12:54:18 +02:00

87 lines
2.9 KiB
Python

#!/usr/bin/env python
import ctypes
import glob
import os
import sys
import threading
import zmq
from zmq.asyncio import Context
import zmq.auth
from zmq.auth.asyncio import AsyncioAuthenticator
from aman.config import Server
class ReceiverThread(threading.Thread):
def __init__(self, socket):
threading.Thread.__init__(self)
self.socket = socket
def __del__(self):
self.stopThread()
def run(self):
try:
while True:
True
finally:
return
def threadId(self):
if hasattr(self, '_thread_id'):
return self._thread_id
for id, thread in threading._active.items():
if thread is self:
return id
def stopThread(self):
id = self.threadId()
res = ctypes.pythonapi.PyThreadState_SetAsyncExc(id, ctypes.py_object(SystemExit))
if 1 < res:
ctypes.pythonapi.PyThreadState_SetAsyncExc(id, 0)
# @brief Receives and sends messages to EuroScope plugins
class Euroscope:
# @brief Initializes the ZMQ socket
# @param[in] config The server configuration
def __init__(self, config : Server.Server):
self.context = Context.instance()
# initialize the authentication module
authLocation = (
str(config.ClientKeyPath)
)
self.auth = AsyncioAuthenticator(context = self.context)
self.auth.configure_curve(domain='*', location = authLocation)
self.auth.allow('127.0.0.1')
self.auth.start()
# read the certificates
keyPairPath = glob.glob(os.path.join(config.ServerKeyPath, '*.key_secret'))
if 1 != len(keyPairPath):
sys.stderr.write('No public-private keypair found for the server certificate')
sys.exit(-1)
keyPair = zmq.auth.load_certificate(keyPairPath[0])
# initialize the receiver
self.receiverSocket = self.context.socket(zmq.ROUTER)
self.receiverSocket.setsockopt(zmq.CURVE_PUBLICKEY, keyPair[0])
self.receiverSocket.setsockopt(zmq.CURVE_SECRETKEY, keyPair[1])
self.receiverSocket.setsockopt(zmq.CURVE_SERVER, True)
self.receiverSocket.bind('tcp://' + config.Address + ':' + str(config.PortReceiver))
self.receiverThread = ReceiverThread(self.receiverSocket)
self.receiverThread.start()
# initialize the notification
self.notificationSocket = self.context.socket(zmq.DEALER)
self.notificationSocket.setsockopt(zmq.CURVE_PUBLICKEY, keyPair[0])
self.notificationSocket.setsockopt(zmq.CURVE_SECRETKEY, keyPair[1])
self.notificationSocket.setsockopt(zmq.CURVE_SERVER, True)
self.notificationSocket.bind('tcp://' + config.Address + ':' + str(config.PortNotification))
def __del__(self):
self.auth.stop()
self.receiverThread.stopThread()
self.receiverThread.join()