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using MediaBrowser.Controller.Configuration;
using MediaBrowser.Controller.Dlna;
using Emby.Dlna.Server;
using MediaBrowser.Model.Logging;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;
namespace Emby.Dlna.Service
{
public abstract class BaseControlHandler
{
private const string NS_SOAPENV = "http://schemas.xmlsoap.org/soap/envelope/";
protected readonly IServerConfigurationManager Config;
protected readonly ILogger Logger;
protected BaseControlHandler(IServerConfigurationManager config, ILogger logger)
{
Config = config;
Logger = logger;
}
public ControlResponse ProcessControlRequest(ControlRequest request)
{
try
{
var enableDebugLogging = Config.GetDlnaConfiguration().EnableDebugLog;
if (enableDebugLogging)
{
LogRequest(request);
}
var response = ProcessControlRequestInternal(request);
if (enableDebugLogging)
{
LogResponse(response);
}
return response;
}
catch (Exception ex)
{
Logger.ErrorException("Error processing control request", ex);
return new ControlErrorHandler().GetResponse(ex);
}
}
private ControlResponse ProcessControlRequestInternal(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());
}
Logger.Debug("Received control request {0}", method.LocalName);
var result = GetResult(method.LocalName, sparams);
var env = new XmlDocument();
env.AppendChild(env.CreateXmlDeclaration("1.0", "utf-8", string.Empty));
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);
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 xml = env.OuterXml.Replace("xmlns:m=", "xmlns:u=");
var controlResponse = new ControlResponse
{
Xml = xml,
IsSuccessful = true
};
//Logger.Debug(xml);
controlResponse.Headers.Add("EXT", string.Empty);
return controlResponse;
}
protected abstract IEnumerable<KeyValuePair<string, string>> GetResult(string methodName, Headers methodParams);
private void LogRequest(ControlRequest request)
{
var builder = new StringBuilder();
var headers = string.Join(", ", request.Headers.Select(i => string.Format("{0}={1}", i.Key, i.Value)).ToArray());
builder.AppendFormat("Headers: {0}", headers);
builder.AppendLine();
builder.Append(request.InputXml);
Logger.LogMultiline("Control request", LogSeverity.Debug, builder);
}
private void LogResponse(ControlResponse response)
{
var builder = new StringBuilder();
var headers = string.Join(", ", response.Headers.Select(i => string.Format("{0}={1}", i.Key, i.Value)).ToArray());
builder.AppendFormat("Headers: {0}", headers);
builder.AppendLine();
builder.Append(response.Xml);
Logger.LogMultiline("Control response", LogSeverity.Debug, builder);
}
}
}
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