etisserant@203: #!/usr/bin/env python
etisserant@203: # -*- coding: utf-8 -*-
etisserant@203: 
etisserant@203: #This file is part of Beremiz, a Integrated Development Environment for
etisserant@203: #programming IEC 61131-3 automates supporting plcopen standard and CanFestival. 
etisserant@203: #
etisserant@203: #Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD
etisserant@203: #
etisserant@203: #See COPYING file for copyrights details.
etisserant@203: #
etisserant@203: #This library is free software; you can redistribute it and/or
etisserant@203: #modify it under the terms of the GNU General Public
etisserant@203: #License as published by the Free Software Foundation; either
etisserant@203: #version 2.1 of the License, or (at your option) any later version.
etisserant@203: #
etisserant@203: #This library is distributed in the hope that it will be useful,
etisserant@203: #but WITHOUT ANY WARRANTY; without even the implied warranty of
etisserant@203: #MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
etisserant@203: #General Public License for more details.
etisserant@203: #
etisserant@203: #You should have received a copy of the GNU General Public
etisserant@203: #License along with this library; if not, write to the Free Software
etisserant@203: #Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
etisserant@203: 
etisserant@217: import Zeroconf, socket
etisserant@203: 
etisserant@217: # type: fully qualified service type name
etisserant@217: service_type = '_PYRO._tcp.local.'
etisserant@203: 
etisserant@217: # properties: dictionary of properties (or a string holding the bytes for the text field)
etisserant@217: serviceproperties = {'description':'Beremiz remote PLC'}
etisserant@217: 
etisserant@217: def gethostaddr(dst = '224.0.1.41'):
etisserant@217:     s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
etisserant@217:     try:
etisserant@217:         s.connect((dst, 7))
etisserant@217:         (host, port) = s.getsockname()
etisserant@217:         s.close()
etisserant@217:         if host != '0.0.0.0':
etisserant@217:             return host
etisserant@217:     except error:
etisserant@217:         pass
etisserant@217:     return socket.gethostbyname(socket.gethostname())
etisserant@217: 
etisserant@217: 
etisserant@217: def ServicePublisher(name, ip, port):
etisserant@217: 
etisserant@217:         # name: fully qualified service name
etisserant@217:         service_name = 'Beremiz_%s.%s'%(name,service_type)
etisserant@217: 
etisserant@217:         # No ip params -> get host ip
etisserant@217:         if ip == "":
etisserant@217:             ip = gethostaddr()
etisserant@217: 
etisserant@217:         print "Mon IP est :"+ip
etisserant@217: 
etisserant@217:         server = Zeroconf.Zeroconf(ip)
etisserant@217: 
etisserant@217:         # address: IP address as unsigned short, network byte order
etisserant@217:         ip_32b = socket.inet_aton(ip)
etisserant@217: 
etisserant@217:         server.registerService(
etisserant@217:              Zeroconf.ServiceInfo(service_type,
etisserant@217:                                   service_name,
etisserant@217:                                   ip_32b,
etisserant@203:                                   port,
etisserant@217:                                   properties = serviceproperties))
etisserant@217:         
etisserant@217:         return server