rework dlna project

1 files changed, 137 insertions, 0 deletions

diff --git a/Emby.Dlna/Service/BaseControlHandler.cs b/Emby.Dlna/Service/BaseControlHandler.cs
new file mode 100644
index 000000000..c5de76eb5
--- /dev/null
+++ b/Emby.Dlna/Service/BaseControlHandler.cs
@@ -0,0 +1,137 @@
+using MediaBrowser.Controller.Configuration;
+using MediaBrowser.Controller.Dlna;
+using MediaBrowser.Dlna.Server;
+using MediaBrowser.Model.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Xml;
+
+namespace MediaBrowser.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);
+        }
+    }
+}