public void SubscribeToEvent(string subscribeUri)
{
var client = new ExtendedWebClient();
//SUBSCRIBE /MediaServer/ContentDirectory/Event HTTP/1.1
//HOST: 192.168.1.152:1400
//USER-AGENT: Linux UPnP/1.0 Sonos/19.3-53220 (WDCR:Microsoft Windows NT 6.1.7601 Service Pack 1)
//CALLBACK: <http://192.168.1.128:3400/notify>
//NT: upnp:event
//TIMEOUT: Second-3600
// find local IP
var uri = listener.Prefixes.FirstOrDefault();
if (uri == null)
return;
var localUri = uri.Replace("*", LocalEndpoint.Address.ToString());
//client.Headers.Add("USER-AGENT", "Linux UPnP/1.0 Sonos/19.3-53220 (Custom:Jishi.SonosUPnP)");
if (subscriptions.ContainsKey(subscribeUri))
{
// Resubscription
client.Headers.Add("SID", subscriptions[subscribeUri]);
log.DebugFormat("Resubscribing to {0} with SID {1}", subscribeUri, subscriptions[subscribeUri]);
}
else
{
client.Headers.Add("CALLBACK", string.Format("<{0}>", localUri));
client.Headers.Add("NT", "upnp:event");
log.DebugFormat("New subscribe to {0}", subscribeUri);
}
client.Headers.Add("TIMEOUT", "Second-600");
try
{
client.UploadString(subscribeUri, "SUBSCRIBE", string.Empty);
var sid = client.ResponseHeaders["SID"];
subscriptions[subscribeUri] = sid;
timers[subscribeUri] = new Timer(Resubscribe, subscribeUri, TimeSpan.FromSeconds(500), TimeSpan.FromMilliseconds(-1));
}
catch (WebException ex)
{
log.ErrorFormat("Error subscribing to {0}. {1}", subscribeUri, ex.Message);
if (subscriptions.ContainsKey(subscribeUri))
{
subscriptions.Remove(subscribeUri);
timers[subscribeUri] = new Timer(Resubscribe, subscribeUri, TimeSpan.FromSeconds(10), TimeSpan.FromMilliseconds(-1));
}
}
}
