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using MediaBrowser.Common.Extensions;
using MediaBrowser.Controller.Dlna;
using MediaBrowser.Model.Logging;
using System;
using System.Collections.Generic;
using System.Text;
using System.Xml;
namespace MediaBrowser.Dlna.Server
{
public class ControlHandler
{
private readonly ILogger _logger;
private const string NS_DC = "http://purl.org/dc/elements/1.1/";
private const string NS_DIDL = "urn:schemas-upnp-org:metadata-1-0/DIDL-Lite/";
private const string NS_DLNA = "urn:schemas-dlna-org:metadata-1-0/";
private const string NS_SEC = "http://www.sec.co.kr/";
private const string NS_SOAPENV = "http://schemas.xmlsoap.org/soap/envelope/";
private const string NS_UPNP = "urn:schemas-upnp-org:metadata-1-0/upnp/";
private const int systemID = 0;
public ControlHandler(ILogger logger)
{
_logger = logger;
}
public ControlResponse ProcessControlRequest(ControlRequest request)
{
var soap = new XmlDocument();
soap.LoadXml(request.InputXml);
var sparams = new Headers();
var body = soap.GetElementsByTagName("Body", NS_SOAPENV).Item(0);
var method = body.FirstChild;
foreach (var p in method.ChildNodes)
{
var e = p as XmlElement;
if (e == null)
{
continue;
}
sparams.Add(e.LocalName, e.InnerText.Trim());
}
var env = new XmlDocument();
env.AppendChild(env.CreateXmlDeclaration("1.0", "utf-8", "yes"));
var envelope = env.CreateElement("SOAP-ENV", "Envelope", NS_SOAPENV);
env.AppendChild(envelope);
envelope.SetAttribute("encodingStyle", NS_SOAPENV, "http://schemas.xmlsoap.org/soap/encoding/");
var rbody = env.CreateElement("SOAP-ENV:Body", NS_SOAPENV);
env.DocumentElement.AppendChild(rbody);
IEnumerable<KeyValuePair<string, string>> result;
switch (method.LocalName)
{
case "GetSearchCapabilities":
result = HandleGetSearchCapabilities();
break;
case "GetSortCapabilities":
result = HandleGetSortCapabilities();
break;
case "GetSystemUpdateID":
result = HandleGetSystemUpdateID();
break;
case "Browse":
result = HandleBrowse(sparams);
break;
case "X_GetFeatureList":
result = HandleXGetFeatureList();
break;
case "X_SetBookmark":
result = HandleXSetBookmark(sparams);
break;
default:
throw new ResourceNotFoundException();
}
var response = env.CreateElement(String.Format("u:{0}Response", method.LocalName), method.NamespaceURI);
rbody.AppendChild(response);
foreach (var i in result)
{
var ri = env.CreateElement(i.Key);
ri.InnerText = i.Value;
response.AppendChild(ri);
}
var controlResponse = new ControlResponse
{
Xml = env.OuterXml
};
controlResponse.Headers.Add("EXT", string.Empty);
return controlResponse;
}
private Headers HandleXSetBookmark(Headers sparams)
{
var id = sparams["ObjectID"];
//var item = GetItem(id) as IBookmarkable;
//if (item != null)
//{
// var newbookmark = long.Parse(sparams["PosSecond"]);
// if (newbookmark > 30)
// {
// newbookmark -= 5;
// }
// if (newbookmark > 30 || !item.Bookmark.HasValue || item.Bookmark.Value < 60)
// {
// item.Bookmark = newbookmark;
// }
//}
return new Headers();
}
private Headers HandleGetSearchCapabilities()
{
return new Headers { { "SearchCaps", string.Empty } };
}
private Headers HandleGetSortCapabilities()
{
return new Headers { { "SortCaps", string.Empty } };
}
private Headers HandleGetSystemUpdateID()
{
return new Headers { { "Id", systemID.ToString() } };
}
private Headers HandleXGetFeatureList()
{
return new Headers { { "FeatureList", GetFeatureListXml() } };
}
private string GetFeatureListXml()
{
var builder = new StringBuilder();
builder.Append("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
builder.Append("<Features xmlns=\"urn:schemas-upnp-org:av:avs\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xsi:schemaLocation=\"urn:schemas-upnp-org:av:avs http://www.upnp.org/schemas/av/avs.xsd\">");
builder.Append("<Feature name=\"samsung.com_BASICVIEW\" version=\"1\">");
builder.Append("<container id=\"I\" type=\"object.item.imageItem\"/>");
builder.Append("<container id=\"A\" type=\"object.item.audioItem\"/>");
builder.Append("<container id=\"V\" type=\"object.item.videoItem\"/>");
builder.Append("</Feature>");
builder.Append("</Features>");
return builder.ToString();
}
private IEnumerable<KeyValuePair<string, string>> HandleBrowse(Headers sparams)
{
var id = sparams["ObjectID"];
var flag = sparams["BrowseFlag"];
int requested;
var provided = 0;
int start;
if (sparams.ContainsKey("RequestedCount") && int.TryParse(sparams["RequestedCount"], out requested) && requested <= 0)
{
requested = 20;
}
if (sparams.ContainsKey("StartingIndex") && int.TryParse(sparams["StartingIndex"], out start) && start <= 0)
{
start = 0;
}
//var root = GetItem(id) as IMediaFolder;
var result = new XmlDocument();
var didl = result.CreateElement(string.Empty, "DIDL-Lite", NS_DIDL);
didl.SetAttribute("xmlns:dc", NS_DC);
didl.SetAttribute("xmlns:dlna", NS_DLNA);
didl.SetAttribute("xmlns:upnp", NS_UPNP);
didl.SetAttribute("xmlns:sec", NS_SEC);
result.AppendChild(didl);
return null;
}
}
}
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