public static DeviceType Determine(SSDPResponse response)
{
try
{
if (response != null && response.Information != null)
{
if (response.Information.Manufacturer.ToLower().Contains("google"))
{
return(DeviceType.Chromecast);
}
if (response.Information.Model.ToLower().Contains("eureka "))
{
return(DeviceType.Chromecast);
}
if (response.Information.Manufacturer.ToLower().Contains("tv"))
{
return(DeviceType.Television);
}
if (response.Information.Model.ToLower().Contains("tv"))
{
return(DeviceType.Television);
}
}
}
catch (Exception)
{
return(DeviceType.Generic);
}
return(DeviceType.Generic);
}
private async Task <IEnumerable <SSDPResponse> > SSDPAsync(IPAddress bind_addr, CancellationToken cancel_token)
{
var msg = System.Text.Encoding.ASCII.GetBytes(
"M-SEARCH * HTTP/1.1\r\n" +
"HOST: 239.255.255.250:1900\r\n" +
"MAN: \"ssdp:discover\"\r\n" +
"MX: 3\r\n" +
"ST: upnp:rootdevice\r\n\r\n"
);
var responses = new List <SSDPResponse>();
try {
using (var client = new UdpClient(new IPEndPoint(bind_addr, 0))) {
for (int i = 0; i < 3; i++)
{
await client.SendAsync(msg, msg.Length, SSDPEndpoint).ConfigureAwait(false);
}
for (int i = 0; i < 10 && client.Available == 0 && !cancel_token.IsCancellationRequested; i++)
{
await Task.Delay(100, cancel_token).ConfigureAwait(false);
}
while (client.Available > 0 && !cancel_token.IsCancellationRequested)
{
var result = await client.ReceiveAsync().ConfigureAwait(false);
var response = System.Text.Encoding.ASCII.GetString(result.Buffer).Split(new string[] { "\r\n" }, StringSplitOptions.None);
if (response.Length < 0)
{
continue;
}
if (response[0].IndexOf("HTTP/1.1 200") != 0)
{
continue;
}
var header_pattern = new System.Text.RegularExpressions.Regex(@"(.*?):(.*)");
var headers = new Dictionary <string, string>();
foreach (var line in response.Skip(1))
{
if (line.Length == 0)
{
break;
}
var md = header_pattern.Match(line);
if (!md.Success)
{
continue;
}
var key = md.Groups[1].Value.Trim();
var value = md.Groups[2].Value.Trim();
headers.Add(key.ToUpperInvariant(), value);
}
var rsp = new SSDPResponse(result.RemoteEndPoint, headers);
logger.Debug("SSDP Found {0} at {1}", rsp.ST, rsp.Location);
responses.Add(rsp);
if (client.Available == 0 && !cancel_token.IsCancellationRequested)
{
await Task.Delay(100, cancel_token).ConfigureAwait(false);
}
}
}
}
catch (SocketException e) {
logger.Debug("Search Error on {0}: {1}", bind_addr, e);
}
return(responses.Distinct());
}
private async Task<IEnumerable<SSDPResponse>> SSDPAsync(IPAddress bind_addr, CancellationToken cancel_token)
{
var msg = System.Text.Encoding.ASCII.GetBytes(
"M-SEARCH * HTTP/1.1\r\n" +
"HOST: 239.255.255.250:1900\r\n" +
"MAN: \"ssdp:discover\"\r\n" +
"MX: 3\r\n" +
"ST: ssdp:all\r\n\r\n"
);
var responses = new List<SSDPResponse>();
using (var client=new UdpClient(new IPEndPoint(bind_addr, 0))) {
for (int i=0; i<3; i++) {
await client.SendAsync(msg, msg.Length, SSDPEndpoint);
}
if (client.Available==0 && !cancel_token.IsCancellationRequested) {
await Task.Delay(1000, cancel_token);
}
while (client.Available>0 && !cancel_token.IsCancellationRequested) {
var result = await client.ReceiveAsync();
var response = System.Text.Encoding.ASCII.GetString(result.Buffer).Split(new string[] { "\r\n" }, StringSplitOptions.None);
if (response.Length<0) continue;
if (response[0].IndexOf("HTTP/1.1 200")!=0) continue;
var header_pattern = new System.Text.RegularExpressions.Regex(@"(.*?):(.*)");
var headers = new Dictionary<string,string>();
foreach (var line in response.Skip(1)) {
if (line.Length==0) break;
var md = header_pattern.Match(line);
if (!md.Success) continue;
var key = md.Groups[1].Value.Trim();
var value = md.Groups[2].Value.Trim();
headers.Add(key.ToUpperInvariant(), value);
}
var rsp = new SSDPResponse(result.RemoteEndPoint, headers);
logger.Debug("SSDP Found {0} at {1}", rsp.ST, rsp.Location);
responses.Add(rsp);
if (client.Available==0 && !cancel_token.IsCancellationRequested) {
await Task.Delay(100, cancel_token);
}
}
}
return responses.Distinct();
}