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57 lines
2.1 KiB
57 lines
2.1 KiB
using System;
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using System.Linq;
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using System.Text;
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namespace MediaBrowser.Dlna.PlayTo
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{
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public class SsdpHelper
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{
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private const string SsdpRenderer = "M-SEARCH * HTTP/1.1\r\n" +
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"HOST: 239.255.255.250:1900\r\n" +
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"User-Agent: UPnP/1.0 DLNADOC/1.50 Platinum/0.6.9.1\r\n" +
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"ST: urn:schemas-upnp-org:device:MediaRenderer:1\r\n" +
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"MAN: \"ssdp:discover\"\r\n" +
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"MX: {0}\r\n" +
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"\r\n";
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/// <summary>
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/// Creates a SSDP MSearch packet for DlnaRenderers.
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/// </summary>
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/// <param name="mx">The mx. (Delaytime for device before responding)</param>
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/// <returns></returns>
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public static byte[] CreateRendererSSDP(int mx)
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{
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return Encoding.UTF8.GetBytes(string.Format(SsdpRenderer, mx));
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}
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/// <summary>
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/// Parses the socket response into a location Uri for the DeviceDescription.xml.
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/// </summary>
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/// <param name="data">The data.</param>
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/// <returns></returns>
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public static Uri ParseSsdpResponse(string data)
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{
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var res = (from line in data.Split(new[] { '\r', '\n' })
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where line.ToLowerInvariant().StartsWith("location:")
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select line).FirstOrDefault();
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return !string.IsNullOrEmpty(res) ? new Uri(res.Substring(9).Trim()) : null;
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}
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/// <summary>
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/// Parses data into SSDP event.
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/// </summary>
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/// <param name="data">The data.</param>
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/// <returns></returns>
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[Obsolete("Not yet used", true)]
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public static string ParseSsdpEvent(string data)
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{
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var sid = (from line in data.Split(new[] { '\r', '\n' })
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where line.ToLowerInvariant().StartsWith("sid:")
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select line).FirstOrDefault();
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return data;
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}
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}
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}
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