forked from berhsi/doorstatus
91 lines
2.9 KiB
Python
Executable file
91 lines
2.9 KiB
Python
Executable file
#!/usr/bin/python3
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# -*- coding: utf-8 -*-
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# file: setstatus.py
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# date: 26.07.2019
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# email: berhsi@web.de
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# client, that connects to the statusserver at port 10001 to update the
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# krautspace door status. allowed arguments are 0 or 1.
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import argparse
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import socket
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import ssl
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import sys
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import os
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def main():
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description = "Set door status of Krautspace"
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parser = argparse.ArgumentParser(description=description)
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parser.add_argument("status_code", help="status to set", type=int,
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choices=(0, 1))
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args = parser.parse_args()
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print("Status set to {}".format(bytes([args.status_code])))
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HOST = 'localhost'
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PORT = 10001
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SERVER_NAME = 'server.status.kraut.space'
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CLIENT_CERT = './certs/client.crt'
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CLIENT_KEY = './certs/client.key'
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SERVER_CERT = './certs/server.crt'
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STATUS = None
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RESPONSE = None
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print('Check certs')
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for certfile in (CLIENT_CERT, CLIENT_KEY, SERVER_CERT):
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if os.access(certfile, os.R_OK) is False:
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print('Failed to read cert: {}'.format(certfile))
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sys.exit(1)
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try:
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context = ssl.create_default_context(ssl.Purpose.SERVER_AUTH,
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cafile=SERVER_CERT)
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context.load_cert_chain(certfile=CLIENT_CERT, keyfile=CLIENT_KEY)
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context.set_ciphers('EECDH+AESGCM') # only ciphers for tls 1.2 and 1.3
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context.options |= getattr(ssl._ssl, 'OP_NO_COMPRESSION', 0)
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print('SSL context created')
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except Exception as e:
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print('Failed to create ssl context: {}'.format(e))
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sys.exit(2)
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with socket.socket(socket.AF_INET, socket.SOCK_STREAM, 0) as mySocket:
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print('Socket created')
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try:
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conn = context.wrap_socket(mySocket, server_side=False,
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server_hostname=SERVER_NAME)
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print('Connection wrapped with ssl.context')
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conn.settimeout(5.0)
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except Exception as e:
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print('Context wrapper failed: {}'.format(e))
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try:
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conn.connect((HOST, PORT))
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print('Connection established: {}'.format(conn.getpeercert()))
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except socket.timeout:
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print('Connection timeout')
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except Exception as e:
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print('Connection failed: {}'.format(e))
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sys.exit(3)
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try:
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print('Send new status: {}'.format(STATUS))
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conn.send(STATUS)
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except Exception as e:
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print('Error: {}'.format(e))
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sys.exit(4)
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try:
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RESPONSE = conn.recv(1)
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print('Server returns: {}'.format(RESPONSE))
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if RESPONSE == STATUS:
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print('Status sucessfull updated')
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else:
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print('Failed to update status')
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print('Disconnect from server')
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except Exception as e:
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print('Error: {}'.format(e))
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sys.exit(5)
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if __name__ == '__main__':
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main()
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