Break Zeroconf into its own component

homeassistant/components/zeroconf.py

@@ -0,0 +1,50 @@
+"""
+This module exposes Home Assistant via Zeroconf, also sometimes known as
+Bonjour, Rendezvous, Avahi or Multicast DNS (mDNS).
+
+For more details about Zeroconf, please refer to the documentation at
+https://home-assistant.io/components/zeroconf/
+"""
+import logging
+import socket
+
+from homeassistant.const import (
+    EVENT_HOMEASSISTANT_START, EVENT_HOMEASSISTANT_STOP, __version__)
+
+import homeassistant.util as util
+
+REQUIREMENTS = ["zeroconf==0.17.5"]
+
+_LOGGER = logging.getLogger(__name__)
+
+DOMAIN = "zeroconf"
+
+ZEROCONF_TYPE = "_home-assistant._tcp.local."
+
+DEPENDENCIES = ["http", "api"]
+
+def setup(hass, config):
+
+  from zeroconf import Zeroconf, ServiceInfo
+
+  zeroconf = Zeroconf()
+
+  zeroconf_name = "{}.{}".format(hass.config.location_name,
+                                 ZEROCONF_TYPE)
+
+  params = {"version": __version__, "base_url": hass.http.base_url,
+            "has_password": (hass.http.api_password != "")}
+
+  info = ServiceInfo(ZEROCONF_TYPE, zeroconf_name,
+                     socket.inet_aton(util.get_local_ip()),
+                     hass.http.server_address[1], 0, 0, params)
+
+  zeroconf.register_service(info)
+
+  def stop_zeroconf(event):
+      """Stop Zeroconf."""
+      zeroconf.unregister_all_services()
+
+  hass.bus.listen_once(EVENT_HOMEASSISTANT_STOP, stop_zeroconf)
+
+  return True