merging with master to clear merge conflict

4 files changed, 58 insertions, 22 deletions

diff --git a/Emby.Dlna/DlnaManager.cs b/Emby.Dlna/DlnaManager.cs
index c507b14e9f..f53d274516 100644
--- a/Emby.Dlna/DlnaManager.cs
+++ b/Emby.Dlna/DlnaManager.cs
@@ -38,7 +38,9 @@ namespace Emby.Dlna
             IFileSystem fileSystem,
             IApplicationPaths appPaths,
             ILoggerFactory loggerFactory,
-            IJsonSerializer jsonSerializer, IServerApplicationHost appHost, IAssemblyInfo assemblyInfo)
+            IJsonSerializer jsonSerializer,
+            IServerApplicationHost appHost,
+            IAssemblyInfo assemblyInfo)
         {
             _xmlSerializer = xmlSerializer;
             _fileSystem = fileSystem;
diff --git a/Emby.Dlna/MediaReceiverRegistrar/ControlHandler.cs b/Emby.Dlna/MediaReceiverRegistrar/ControlHandler.cs
index 6257892b19..ae8175f4a2 100644
--- a/Emby.Dlna/MediaReceiverRegistrar/ControlHandler.cs
+++ b/Emby.Dlna/MediaReceiverRegistrar/ControlHandler.cs
@@ -36,7 +36,8 @@ namespace Emby.Dlna.MediaReceiverRegistrar
             };
         }
 
-        public ControlHandler(IServerConfigurationManager config, ILogger logger, IXmlReaderSettingsFactory xmlReaderSettingsFactory) : base(config, logger, xmlReaderSettingsFactory)
+        public ControlHandler(IServerConfigurationManager config, ILogger logger, IXmlReaderSettingsFactory xmlReaderSettingsFactory)
+            : base(config, logger, xmlReaderSettingsFactory)
         {
         }
     }
diff --git a/Emby.Dlna/PlayTo/Device.cs b/Emby.Dlna/PlayTo/Device.cs
index 037cdd8aa7..b62c5e1d4c 100644
--- a/Emby.Dlna/PlayTo/Device.cs
+++ b/Emby.Dlna/PlayTo/Device.cs
@@ -4,6 +4,7 @@ using System.Globalization;
 using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
+using System.Xml;
 using System.Xml.Linq;
 using Emby.Dlna.Common;
 using Emby.Dlna.Server;
@@ -733,26 +734,21 @@ namespace Emby.Dlna.PlayTo
                 return (true, null);
             }
 
-            XElement uPnpResponse;
+            XElement uPnpResponse = null;
 
-            // Handle different variations sent back by devices
             try
             {
-                uPnpResponse = XElement.Parse(trackString);
+                uPnpResponse = ParseResponse(trackString);
             }
-            catch (Exception)
+            catch (Exception ex)
             {
-                // first try to add a root node with a dlna namesapce
-                try
-                {
-                    uPnpResponse = XElement.Parse("<data xmlns:dlna=\"urn:schemas-dlna-org:device-1-0\">" + trackString + "</data>");
-                    uPnpResponse = uPnpResponse.Descendants().First();
-                }
-                catch (Exception ex)
-                {
-                    _logger.LogError(ex, "Unable to parse xml {0}", trackString);
-                    return (true, null);
-                }
+                _logger.LogError(ex, "Uncaught exception while parsing xml");
+            }
+
+            if (uPnpResponse == null)
+            {
+                _logger.LogError("Failed to parse xml: \n {Xml}", trackString);
+                return (true, null);
             }
 
             var e = uPnpResponse.Element(uPnpNamespaces.items);
@@ -762,6 +758,43 @@ namespace Emby.Dlna.PlayTo
             return (true, uTrack);
         }
 
+        private XElement ParseResponse(string xml)
+        {
+            // Handle different variations sent back by devices
+            try
+            {
+                return XElement.Parse(xml);
+            }
+            catch (XmlException)
+            {
+
+            }
+
+            // first try to add a root node with a dlna namesapce
+            try
+            {
+                return XElement.Parse("<data xmlns:dlna=\"urn:schemas-dlna-org:device-1-0\">" + xml + "</data>")
+                                .Descendants()
+                                .First();
+            }
+            catch (XmlException)
+            {
+
+            }
+
+            // some devices send back invalid xml
+            try
+            {
+                return XElement.Parse(xml.Replace("&", "&amp;"));
+            }
+            catch (XmlException)
+            {
+
+            }
+
+            return null;
+        }
+
         private static uBaseObject CreateUBaseObject(XElement container, string trackUri)
         {
             if (container == null)
diff --git a/Emby.Dlna/PlayTo/PlayToManager.cs b/Emby.Dlna/PlayTo/PlayToManager.cs
index 6cce312eef..28e70d0469 100644
--- a/Emby.Dlna/PlayTo/PlayToManager.cs
+++ b/Emby.Dlna/PlayTo/PlayToManager.cs
@@ -89,11 +89,6 @@ namespace Emby.Dlna.PlayTo
                 return;
             }
 
-            if (_sessionManager.Sessions.Any(i => usn.IndexOf(i.DeviceId, StringComparison.OrdinalIgnoreCase) != -1))
-            {
-                return;
-            }
-
             var cancellationToken = _disposeCancellationTokenSource.Token;
 
             await _sessionLock.WaitAsync(cancellationToken).ConfigureAwait(false);
@@ -105,6 +100,11 @@ namespace Emby.Dlna.PlayTo
                     return;
                 }
 
+                if (_sessionManager.Sessions.Any(i => usn.IndexOf(i.DeviceId, StringComparison.OrdinalIgnoreCase) != -1))
+                {
+                    return;
+                }
+
                 await AddDevice(info, location, cancellationToken).ConfigureAwait(false);
             }
             catch (OperationCanceledException)