59 lines
2.1 KiB
C#
59 lines
2.1 KiB
C#
using System;
|
|
using System.Collections.Generic;
|
|
using System.IO;
|
|
using System.Text;
|
|
|
|
namespace MediaBrowser.Dlna.Ssdp
|
|
{
|
|
public class SsdpHelper
|
|
{
|
|
private const string SsdpRenderer = "M-SEARCH * HTTP/1.1\r\n" +
|
|
"HOST: 239.255.255.250:1900\r\n" +
|
|
"User-Agent: UPnP/1.0 DLNADOC/1.50 Platinum/0.6.9.1\r\n" +
|
|
"ST: urn:schemas-upnp-org:device:MediaRenderer:1\r\n" +
|
|
"MAN: \"ssdp:discover\"\r\n" +
|
|
"MX: {0}\r\n" +
|
|
"\r\n";
|
|
|
|
/// <summary>
|
|
/// Creates a SSDP MSearch packet for DlnaRenderers.
|
|
/// </summary>
|
|
/// <param name="mx">The mx. (Delaytime for device before responding)</param>
|
|
/// <returns></returns>
|
|
public static byte[] CreateRendererSSDP(int mx)
|
|
{
|
|
return Encoding.UTF8.GetBytes(string.Format(SsdpRenderer, mx));
|
|
}
|
|
|
|
/// <summary>
|
|
/// Parses the socket response into a location Uri for the DeviceDescription.xml.
|
|
/// </summary>
|
|
/// <param name="data">The data.</param>
|
|
/// <returns></returns>
|
|
public static Dictionary<string,string> ParseSsdpResponse(byte[] data)
|
|
{
|
|
var headers = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
|
|
|
|
using (var reader = new StreamReader(new MemoryStream(data), Encoding.ASCII))
|
|
{
|
|
for (var line = reader.ReadLine(); line != null; line = reader.ReadLine())
|
|
{
|
|
line = line.Trim();
|
|
if (string.IsNullOrEmpty(line))
|
|
{
|
|
break;
|
|
}
|
|
var parts = line.Split(new[] { ':' }, 2);
|
|
|
|
if (parts.Length == 2)
|
|
{
|
|
headers[parts[0]] = parts[1].Trim();
|
|
}
|
|
}
|
|
}
|
|
|
|
return headers;
|
|
}
|
|
}
|
|
}
|