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# from http://stackoverflow.com/questions/3430245/how-to-develop-an-avahi-client-server
import avahi
import dbus
__all__ = ["ZeroconfService"]
class ZeroconfService:
"""A simple class to publish a network service with zeroconf using
avahi.
"""
def __init__(self, name, port, stype="_http._tcp",
domain="", host="", text=""):
self.name = name
self.stype = stype
self.domain = domain
self.host = host
self.port = port
self.text = text
def publish(self):
bus = dbus.SystemBus()
server = dbus.Interface(
bus.get_object(
avahi.DBUS_NAME,
avahi.DBUS_PATH_SERVER),
avahi.DBUS_INTERFACE_SERVER)
g = dbus.Interface(
bus.get_object(avahi.DBUS_NAME,
server.EntryGroupNew()),
avahi.DBUS_INTERFACE_ENTRY_GROUP)
g.AddService(avahi.IF_UNSPEC, avahi.PROTO_UNSPEC,dbus.UInt32(0),
self.name, self.stype, self.domain, self.host,
dbus.UInt16(self.port), self.text)
g.Commit()
self.group = g
def unpublish(self):
self.group.Reset()
def test():
service = ZeroconfService(name="Teacher", port=3000, text="this is a text")
service.publish()
raw_input("Press any key to unpublish the service ")
service.unpublish()
if __name__ == "__main__":
test()
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