voctocore/lib/tcpsingleconnection.py



#!/usr/bin/python3
import logging, socket
from gi.repository import GObject

from lib.config import Config

class TCPSingleConnection(object):
    log = logging.getLogger('TCPSingleConnection')

    port = None

    boundSocket = None
    currentConnection = None

    def __init__(self, port):
        self.port = port

        self.log.debug('Binding to Source-Socket on [::]:%u', port)
        self.boundSocket = socket.socket(socket.AF_INET6)
        self.boundSocket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
        self.boundSocket.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_V6ONLY, False)
        self.boundSocket.bind(('::', port))
        self.boundSocket.listen(1)

        self.log.debug('Setting GObject io-watch on Socket')
        GObject.io_add_watch(self.boundSocket, GObject.IO_IN, self.on_connect)

    def on_connect(self, sock, *args):
        conn, addr = sock.accept()
        self.log.info("Incomming Connection from %s", addr)

        if self.currentConnection is not None:
            self.log.warn("Another Source is already connected")
            return True

        self.on_accepted(conn, addr)
        self.currentConnection = conn

        return True

    def close_connection(self):
        self.currentConnection = None
        self.log.info('Connection closed')