Improvements to dlna server

* Improve response writer
* Add analyzers
* Error on warnings in release mode
* Disable doc warnings

Emby.Dlna/Api/DlnaServerService.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System;
 using System.IO;
 using System.Text;

Emby.Dlna/Api/DlnaService.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System.Linq;
 using MediaBrowser.Controller.Dlna;
 using MediaBrowser.Controller.Net;

Emby.Dlna/Common/Argument.cs

@@ -1,3 +1,5 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
 
 namespace Emby.Dlna.Common
 {

Emby.Dlna/Common/DeviceIcon.cs

@@ -1,3 +1,7 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
+using System.Globalization;
 
 namespace Emby.Dlna.Common
 {
@@ -13,9 +17,14 @@ namespace Emby.Dlna.Common
 
         public string Depth { get; set; }
 
+        /// <inheritdoc />
         public override string ToString()
         {
-            return string.Format("{0}x{1}", Height, Width);
+            return string.Format(
+                CultureInfo.InvariantCulture,
+                "{0}x{1}",
+                Height,
+                Width);
         }
     }
 }

Emby.Dlna/Common/DeviceService.cs

@@ -1,3 +1,5 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
 
 namespace Emby.Dlna.Common
 {
@@ -13,9 +15,8 @@ namespace Emby.Dlna.Common
 
         public string EventSubUrl { get; set; }
 
+        /// <inheritdoc />
         public override string ToString()
-        {
-            return string.Format("{0}", ServiceId);
-        }
+            => ServiceId;
     }
 }

Emby.Dlna/Common/ServiceAction.cs

@@ -1,21 +1,25 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System.Collections.Generic;
 
 namespace Emby.Dlna.Common
 {
     public class ServiceAction
     {
+        public ServiceAction()
+        {
+            ArgumentList = new List<Argument>();
+        }
+
         public string Name { get; set; }
 
         public List<Argument> ArgumentList { get; set; }
 
+        /// <inheritdoc />
         public override string ToString()
         {
             return Name;
         }
-
-        public ServiceAction()
-        {
-            ArgumentList = new List<Argument>();
-        }
     }
 }

Emby.Dlna/Common/StateVariable.cs

@@ -1,9 +1,17 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System;
 
 namespace Emby.Dlna.Common
 {
     public class StateVariable
     {
+        public StateVariable()
+        {
+            AllowedValues = Array.Empty<string>();
+        }
+
         public string Name { get; set; }
 
         public string DataType { get; set; }
@@ -12,14 +20,8 @@ namespace Emby.Dlna.Common
 
         public string[] AllowedValues { get; set; }
 
+        /// <inheritdoc />
         public override string ToString()
-        {
-            return Name;
-        }
-
-        public StateVariable()
-        {
-            AllowedValues = Array.Empty<string>();
-        }
+            => Name;
     }
 }

Emby.Dlna/Configuration/DlnaOptions.cs

@@ -1,17 +1,10 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
 
 namespace Emby.Dlna.Configuration
 {
     public class DlnaOptions
     {
-        public bool EnablePlayTo { get; set; }
-        public bool EnableServer { get; set; }
-        public bool EnableDebugLog { get; set; }
-        public bool BlastAliveMessages { get; set; }
-        public bool SendOnlyMatchedHost { get; set; }
-        public int ClientDiscoveryIntervalSeconds { get; set; }
-        public int BlastAliveMessageIntervalSeconds { get; set; }
-        public string DefaultUserId { get; set; }
-
         public DlnaOptions()
         {
             EnablePlayTo = true;
@@ -21,5 +14,21 @@ namespace Emby.Dlna.Configuration
             ClientDiscoveryIntervalSeconds = 60;
             BlastAliveMessageIntervalSeconds = 1800;
         }
+
+        public bool EnablePlayTo { get; set; }
+
+        public bool EnableServer { get; set; }
+
+        public bool EnableDebugLog { get; set; }
+
+        public bool BlastAliveMessages { get; set; }
+
+        public bool SendOnlyMatchedHost { get; set; }
+
+        public int ClientDiscoveryIntervalSeconds { get; set; }
+
+        public int BlastAliveMessageIntervalSeconds { get; set; }
+
+        public string DefaultUserId { get; set; }
     }
 }

Emby.Dlna/ConfigurationExtension.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System.Collections.Generic;
 using Emby.Dlna.Configuration;
 using MediaBrowser.Common.Configuration;

Emby.Dlna/ConnectionManager/ConnectionManager.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System.Threading.Tasks;
 using Emby.Dlna.Service;
 using MediaBrowser.Common.Net;

Emby.Dlna/ConnectionManager/ConnectionManagerXmlBuilder.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System.Collections.Generic;
 using Emby.Dlna.Common;
 using Emby.Dlna.Service;

Emby.Dlna/ConnectionManager/ControlHandler.cs

@@ -1,5 +1,9 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System;
 using System.Collections.Generic;
+using System.Xml;
 using Emby.Dlna.Service;
 using MediaBrowser.Common.Extensions;
 using MediaBrowser.Controller.Configuration;
@@ -12,29 +16,27 @@ namespace Emby.Dlna.ConnectionManager
     {
         private readonly DeviceProfile _profile;
 
-        protected override IEnumerable<KeyValuePair<string, string>> GetResult(string methodName, IDictionary<string, string> methodParams)
+        public ControlHandler(IServerConfigurationManager config, ILogger logger, DeviceProfile profile)
+            : base(config, logger)
+        {
+            _profile = profile;
+        }
+
+        /// <inheritdoc />
+        protected override void WriteResult(string methodName, IDictionary<string, string> methodParams, XmlWriter xmlWriter)
         {
             if (string.Equals(methodName, "GetProtocolInfo", StringComparison.OrdinalIgnoreCase))
             {
-                return HandleGetProtocolInfo();
+                HandleGetProtocolInfo(xmlWriter);
             }
 
             throw new ResourceNotFoundException("Unexpected control request name: " + methodName);
         }
 
-        private IEnumerable<KeyValuePair<string, string>> HandleGetProtocolInfo()
+        private void HandleGetProtocolInfo(XmlWriter xmlWriter)
         {
-            return new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase)
-            {
-                { "Source", _profile.ProtocolInfo },
-                { "Sink", "" }
-            };
-        }
-
-        public ControlHandler(IServerConfigurationManager config, ILogger logger, DeviceProfile profile)
-            : base(config, logger)
-        {
-            _profile = profile;
+            xmlWriter.WriteElementString("Source", _profile.ProtocolInfo);
+            xmlWriter.WriteElementString("Sink", string.Empty);
         }
     }
 }

Emby.Dlna/ConnectionManager/ServiceActionListBuilder.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System.Collections.Generic;
 using Emby.Dlna.Common;
 

Emby.Dlna/ContentDirectory/ContentDirectory.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System;
 using System.Threading.Tasks;
 using Emby.Dlna.Service;

Emby.Dlna/ContentDirectory/ContentDirectoryXmlBuilder.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System.Collections.Generic;
 using Emby.Dlna.Common;
 using Emby.Dlna.Service;

Emby.Dlna/ContentDirectory/ControlHandler.cs

@@ -1,7 +1,9 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System;
 using System.Collections.Generic;
 using System.Globalization;
-using System.IO;
 using System.Linq;
 using System.Text;
 using System.Threading;
@@ -79,114 +81,129 @@ namespace Emby.Dlna.ContentDirectory
             _didlBuilder = new DidlBuilder(profile, user, imageProcessor, serverAddress, accessToken, userDataManager, localization, mediaSourceManager, Logger, mediaEncoder);
         }
 
-        protected override IEnumerable<KeyValuePair<string, string>> GetResult(string methodName, IDictionary<string, string> methodParams)
+        /// <inheritdoc />
+        protected override void WriteResult(string methodName, IDictionary<string, string> methodParams, XmlWriter xmlWriter)
         {
-            var deviceId = "test";
-
-            var user = _user;
+            const string DeviceId = "test";
 
             if (string.Equals(methodName, "GetSearchCapabilities", StringComparison.OrdinalIgnoreCase))
-                return HandleGetSearchCapabilities();
+            {
+                HandleGetSearchCapabilities(xmlWriter);
+                return;
+            }
 
             if (string.Equals(methodName, "GetSortCapabilities", StringComparison.OrdinalIgnoreCase))
-                return HandleGetSortCapabilities();
+            {
+                HandleGetSortCapabilities(xmlWriter);
+                return;
+            }
 
             if (string.Equals(methodName, "GetSortExtensionCapabilities", StringComparison.OrdinalIgnoreCase))
-                return HandleGetSortExtensionCapabilities();
+            {
+                HandleGetSortExtensionCapabilities(xmlWriter);
+                return;
+            }
 
             if (string.Equals(methodName, "GetSystemUpdateID", StringComparison.OrdinalIgnoreCase))
-                return HandleGetSystemUpdateID();
+            {
+                HandleGetSystemUpdateID(xmlWriter);
+                return;
+            }
 
             if (string.Equals(methodName, "Browse", StringComparison.OrdinalIgnoreCase))
-                return HandleBrowse(methodParams, user, deviceId);
+            {
+                HandleBrowse(xmlWriter, methodParams, DeviceId);
+                return;
+            }
 
             if (string.Equals(methodName, "X_GetFeatureList", StringComparison.OrdinalIgnoreCase))
-                return HandleXGetFeatureList();
+            {
+                HandleXGetFeatureList(xmlWriter);
+                return;
+            }
 
             if (string.Equals(methodName, "GetFeatureList", StringComparison.OrdinalIgnoreCase))
-                return HandleGetFeatureList();
+            {
+                HandleGetFeatureList(xmlWriter);
+                return;
+            }
 
             if (string.Equals(methodName, "X_SetBookmark", StringComparison.OrdinalIgnoreCase))
-                return HandleXSetBookmark(methodParams, user);
+            {
+                HandleXSetBookmark(methodParams);
+                return;
+            }
 
             if (string.Equals(methodName, "Search", StringComparison.OrdinalIgnoreCase))
-                return HandleSearch(methodParams, user, deviceId);
+            {
+                HandleSearch(xmlWriter, methodParams, DeviceId);
+                return;
+            }
 
             if (string.Equals(methodName, "X_BrowseByLetter", StringComparison.OrdinalIgnoreCase))
-                return HandleX_BrowseByLetter(methodParams, user, deviceId);
+            {
+                HandleXBrowseByLetter(xmlWriter, methodParams, DeviceId);
+                return;
+            }
 
             throw new ResourceNotFoundException("Unexpected control request name: " + methodName);
         }
 
-        private IEnumerable<KeyValuePair<string, string>> HandleXSetBookmark(IDictionary<string, string> sparams, User user)
+        private void HandleXSetBookmark(IDictionary<string, string> sparams)
         {
             var id = sparams["ObjectID"];
 
-            var serverItem = GetItemFromObjectId(id, user);
+            var serverItem = GetItemFromObjectId(id, _user);
 
             var item = serverItem.Item;
 
             var newbookmark = int.Parse(sparams["PosSecond"], _usCulture);
 
-            var userdata = _userDataManager.GetUserData(user, item);
+            var userdata = _userDataManager.GetUserData(_user, item);
 
             userdata.PlaybackPositionTicks = TimeSpan.FromSeconds(newbookmark).Ticks;
 
-            _userDataManager.SaveUserData(user, item, userdata, UserDataSaveReason.TogglePlayed,
+            _userDataManager.SaveUserData(_user, item, userdata, UserDataSaveReason.TogglePlayed,
                 CancellationToken.None);
-
-            return new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
         }
 
-        private IEnumerable<KeyValuePair<string, string>> HandleGetSearchCapabilities()
+        private void HandleGetSearchCapabilities(XmlWriter xmlWriter)
         {
-            return new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase)
-            {
-                { "SearchCaps", "res@resolution,res@size,res@duration,dc:title,dc:creator,upnp:actor,upnp:artist,upnp:genre,upnp:album,dc:date,upnp:class,@id,@refID,@protocolInfo,upnp:author,dc:description,pv:avKeywords" }
-            };
+            xmlWriter.WriteElementString(
+                "SearchCaps",
+                "res@resolution,res@size,res@duration,dc:title,dc:creator,upnp:actor,upnp:artist,upnp:genre,upnp:album,dc:date,upnp:class,@id,@refID,@protocolInfo,upnp:author,dc:description,pv:avKeywords");
         }
 
-        private IEnumerable<KeyValuePair<string, string>> HandleGetSortCapabilities()
+        private void HandleGetSortCapabilities(XmlWriter xmlWriter)
         {
-            return new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase)
-            {
-                { "SortCaps", "res@duration,res@size,res@bitrate,dc:date,dc:title,dc:size,upnp:album,upnp:artist,upnp:albumArtist,upnp:episodeNumber,upnp:genre,upnp:originalTrackNumber,upnp:rating" }
-            };
+            xmlWriter.WriteElementString(
+                "SortCaps",
+                "res@duration,res@size,res@bitrate,dc:date,dc:title,dc:size,upnp:album,upnp:artist,upnp:albumArtist,upnp:episodeNumber,upnp:genre,upnp:originalTrackNumber,upnp:rating");
         }
 
-        private IEnumerable<KeyValuePair<string, string>> HandleGetSortExtensionCapabilities()
+        private void HandleGetSortExtensionCapabilities(XmlWriter xmlWriter)
         {
-            return new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase)
-            {
-                { "SortExtensionCaps", "res@duration,res@size,res@bitrate,dc:date,dc:title,dc:size,upnp:album,upnp:artist,upnp:albumArtist,upnp:episodeNumber,upnp:genre,upnp:originalTrackNumber,upnp:rating" }
-            };
+            xmlWriter.WriteElementString(
+                "SortExtensionCaps",
+                "res@duration,res@size,res@bitrate,dc:date,dc:title,dc:size,upnp:album,upnp:artist,upnp:albumArtist,upnp:episodeNumber,upnp:genre,upnp:originalTrackNumber,upnp:rating");
         }
 
-        private IEnumerable<KeyValuePair<string, string>> HandleGetSystemUpdateID()
+        private void HandleGetSystemUpdateID(XmlWriter xmlWriter)
         {
-            var headers = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
-            headers.Add("Id", _systemUpdateId.ToString(_usCulture));
-            return headers;
+            xmlWriter.WriteElementString("Id", _systemUpdateId.ToString(CultureInfo.InvariantCulture));
         }
 
-        private IEnumerable<KeyValuePair<string, string>> HandleGetFeatureList()
+        private void HandleGetFeatureList(XmlWriter xmlWriter)
         {
-            return new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase)
-            {
-                { "FeatureList", GetFeatureListXml() }
-            };
+            xmlWriter.WriteElementString("FeatureList", WriteFeatureListXml());
         }
 
-        private IEnumerable<KeyValuePair<string, string>> HandleXGetFeatureList()
-        {
-            return new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase)
-            {
-                { "FeatureList", GetFeatureListXml() }
-            };
-        }
+        private void HandleXGetFeatureList(XmlWriter xmlWriter)
+            => HandleGetFeatureList(xmlWriter);
 
-        private string GetFeatureListXml()
+        private string WriteFeatureListXml()
         {
+            // TODO: clean this up
             var builder = new StringBuilder();
 
             builder.Append("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
@@ -213,7 +230,7 @@ namespace Emby.Dlna.ContentDirectory
             return defaultValue;
         }
 
-        private IEnumerable<KeyValuePair<string, string>> HandleBrowse(IDictionary<string, string> sparams, User user, string deviceId)
+        private void HandleBrowse(XmlWriter xmlWriter, IDictionary<string, string> sparams, string deviceId)
         {
             var id = sparams["ObjectID"];
             var flag = sparams["BrowseFlag"];
@@ -237,101 +254,81 @@ namespace Emby.Dlna.ContentDirectory
                 start = startVal;
             }
 
-            var settings = new XmlWriterSettings
-            {
-                Encoding = Encoding.UTF8,
-                CloseOutput = false,
-                OmitXmlDeclaration = true,
-                ConformanceLevel = ConformanceLevel.Fragment
-            };
+            xmlWriter.WriteStartElement("Result");
 
-            StringWriter builder = new StringWriterWithEncoding(Encoding.UTF8);
+            xmlWriter.WriteStartElement(string.Empty, "DIDL-Lite", NS_DIDL);
 
-            int totalCount;
+            xmlWriter.WriteAttributeString("xmlns", "dc", null, NS_DC);
+            xmlWriter.WriteAttributeString("xmlns", "dlna", null, NS_DLNA);
+            xmlWriter.WriteAttributeString("xmlns", "upnp", null, NS_UPNP);
+            //didl.SetAttribute("xmlns:sec", NS_SEC);
 
-            var dlnaOptions = _config.GetDlnaConfiguration();
+            DidlBuilder.WriteXmlRootAttributes(_profile, xmlWriter);
 
-            using (var writer = XmlWriter.Create(builder, settings))
+            var serverItem = GetItemFromObjectId(id, _user);
+            var item = serverItem.Item;
+
+            int totalCount;
+            if (string.Equals(flag, "BrowseMetadata"))
             {
-                //writer.WriteStartDocument();
+                totalCount = 1;
 
-                writer.WriteStartElement(string.Empty, "DIDL-Lite", NS_DIDL);
+                if (item.IsDisplayedAsFolder || serverItem.StubType.HasValue)
+                {
+                    var childrenResult = GetUserItems(item, serverItem.StubType, _user, sortCriteria, start, requestedCount);
 
-                writer.WriteAttributeString("xmlns", "dc", null, NS_DC);
-                writer.WriteAttributeString("xmlns", "dlna", null, NS_DLNA);
-                writer.WriteAttributeString("xmlns", "upnp", null, NS_UPNP);
-                //didl.SetAttribute("xmlns:sec", NS_SEC);
+                    _didlBuilder.WriteFolderElement(xmlWriter, item, serverItem.StubType, null, childrenResult.TotalRecordCount, filter, id);
+                }
+                else
+                {
+                    var dlnaOptions = _config.GetDlnaConfiguration();
+                    _didlBuilder.WriteItemElement(dlnaOptions, xmlWriter, item, _user, null, null, deviceId, filter);
+                }
 
-                DidlBuilder.WriteXmlRootAttributes(_profile, writer);
+                provided++;
+            }
+            else
+            {
+                var childrenResult = GetUserItems(item, serverItem.StubType, _user, sortCriteria, start, requestedCount);
+                totalCount = childrenResult.TotalRecordCount;
 
-                var serverItem = GetItemFromObjectId(id, user);
-                var item = serverItem.Item;
+                provided = childrenResult.Items.Count;
 
-                if (string.Equals(flag, "BrowseMetadata"))
+                var dlnaOptions = _config.GetDlnaConfiguration();
+                foreach (var i in childrenResult.Items)
                 {
-                    totalCount = 1;
+                    var childItem = i.Item;
+                    var displayStubType = i.StubType;
 
-                    if (item.IsDisplayedAsFolder || serverItem.StubType.HasValue)
+                    if (childItem.IsDisplayedAsFolder || displayStubType.HasValue)
                     {
-                        var childrenResult = GetUserItems(item, serverItem.StubType, user, sortCriteria, start, requestedCount);
+                        var childCount = GetUserItems(childItem, displayStubType, _user, sortCriteria, null, 0)
+                            .TotalRecordCount;
 
-                        _didlBuilder.WriteFolderElement(writer, item, serverItem.StubType, null, childrenResult.TotalRecordCount, filter, id);
+                        _didlBuilder.WriteFolderElement(xmlWriter, childItem, displayStubType, item, childCount, filter);
                     }
                     else
                     {
-                        _didlBuilder.WriteItemElement(dlnaOptions, writer, item, user, null, null, deviceId, filter);
-                    }
-
-                    provided++;
-                }
-                else
-                {
-                    var childrenResult = GetUserItems(item, serverItem.StubType, user, sortCriteria, start, requestedCount);
-                    totalCount = childrenResult.TotalRecordCount;
-
-                    provided = childrenResult.Items.Count;
-
-                    foreach (var i in childrenResult.Items)
-                    {
-                        var childItem = i.Item;
-                        var displayStubType = i.StubType;
-
-                        if (childItem.IsDisplayedAsFolder || displayStubType.HasValue)
-                        {
-                            var childCount = (GetUserItems(childItem, displayStubType, user, sortCriteria, null, 0))
-                                .TotalRecordCount;
-
-                            _didlBuilder.WriteFolderElement(writer, childItem, displayStubType, item, childCount, filter);
-                        }
-                        else
-                        {
-                            _didlBuilder.WriteItemElement(dlnaOptions, writer, childItem, user, item, serverItem.StubType, deviceId, filter);
-                        }
+                        _didlBuilder.WriteItemElement(dlnaOptions, xmlWriter, childItem, _user, item, serverItem.StubType, deviceId, filter);
                     }
                 }
-
-                writer.WriteFullEndElement();
-                //writer.WriteEndDocument();
             }
 
-            var resXML = builder.ToString();
+            xmlWriter.WriteFullEndElement();
+            xmlWriter.WriteFullEndElement();
 
-            return new[]
-                {
-                    new KeyValuePair<string,string>("Result", resXML),
-                    new KeyValuePair<string,string>("NumberReturned", provided.ToString(_usCulture)),
-                    new KeyValuePair<string,string>("TotalMatches", totalCount.ToString(_usCulture)),
-                    new KeyValuePair<string,string>("UpdateID", _systemUpdateId.ToString(_usCulture))
-                };
+            xmlWriter.WriteElementString("NumberReturned", provided.ToString(_usCulture));
+            xmlWriter.WriteElementString("TotalMatches", totalCount.ToString(_usCulture));
+            xmlWriter.WriteElementString("UpdateID", _systemUpdateId.ToString(_usCulture));
         }
 
-        private IEnumerable<KeyValuePair<string, string>> HandleX_BrowseByLetter(IDictionary<string, string> sparams, User user, string deviceId)
+        private void HandleXBrowseByLetter(XmlWriter xmlWriter, IDictionary<string, string> sparams, string deviceId)
         {
             // TODO: Implement this method
-            return HandleSearch(sparams, user, deviceId);
+            HandleSearch(xmlWriter, sparams, deviceId);
         }
 
-        private IEnumerable<KeyValuePair<string, string>> HandleSearch(IDictionary<string, string> sparams, User user, string deviceId)
+        private void HandleSearch(XmlWriter xmlWriter, IDictionary<string, string> sparams, string deviceId)
         {
             var searchCriteria = new SearchCriteria(GetValueOrDefault(sparams, "SearchCriteria", ""));
             var sortCriteria = new SortCriteria(GetValueOrDefault(sparams, "SortCriteria", ""));
@@ -354,99 +351,74 @@ namespace Emby.Dlna.ContentDirectory
                 start = startVal;
             }
 
-            var settings = new XmlWriterSettings
-            {
-                Encoding = Encoding.UTF8,
-                CloseOutput = false,
-                OmitXmlDeclaration = true,
-                ConformanceLevel = ConformanceLevel.Fragment
-            };
-
-            StringWriter builder = new StringWriterWithEncoding(Encoding.UTF8);
-            int totalCount = 0;
-            int provided = 0;
-
-            using (var writer = XmlWriter.Create(builder, settings))
-            {
-                //writer.WriteStartDocument();
+            xmlWriter.WriteStartElement("Result");
 
-                writer.WriteStartElement(string.Empty, "DIDL-Lite", NS_DIDL);
+            xmlWriter.WriteStartElement(string.Empty, "DIDL-Lite", NS_DIDL);
 
-                writer.WriteAttributeString("xmlns", "dc", null, NS_DC);
-                writer.WriteAttributeString("xmlns", "dlna", null, NS_DLNA);
-                writer.WriteAttributeString("xmlns", "upnp", null, NS_UPNP);
-                //didl.SetAttribute("xmlns:sec", NS_SEC);
+            xmlWriter.WriteAttributeString("xmlns", "dc", null, NS_DC);
+            xmlWriter.WriteAttributeString("xmlns", "dlna", null, NS_DLNA);
+            xmlWriter.WriteAttributeString("xmlns", "upnp", null, NS_UPNP);
+            //didl.SetAttribute("xmlns:sec", NS_SEC);
 
-                DidlBuilder.WriteXmlRootAttributes(_profile, writer);
+            DidlBuilder.WriteXmlRootAttributes(_profile, xmlWriter);
 
-                var serverItem = GetItemFromObjectId(sparams["ContainerID"], user);
+            var serverItem = GetItemFromObjectId(sparams["ContainerID"], _user);
 
-                var item = serverItem.Item;
-
-                var childrenResult = (GetChildrenSorted(item, user, searchCriteria, sortCriteria, start, requestedCount));
-
-                totalCount = childrenResult.TotalRecordCount;
+            var item = serverItem.Item;
 
-                provided = childrenResult.Items.Count;
+            var childrenResult = GetChildrenSorted(item, _user, searchCriteria, sortCriteria, start, requestedCount);
 
-                var dlnaOptions = _config.GetDlnaConfiguration();
+            var dlnaOptions = _config.GetDlnaConfiguration();
 
-                foreach (var i in childrenResult.Items)
+            foreach (var i in childrenResult.Items)
+            {
+                if (i.IsDisplayedAsFolder)
                 {
-                    if (i.IsDisplayedAsFolder)
-                    {
-                        var childCount = (GetChildrenSorted(i, user, searchCriteria, sortCriteria, null, 0))
-                            .TotalRecordCount;
+                    var childCount = GetChildrenSorted(i, _user, searchCriteria, sortCriteria, null, 0)
+                        .TotalRecordCount;
 
-                        _didlBuilder.WriteFolderElement(writer, i, null, item, childCount, filter);
-                    }
-                    else
-                    {
-                        _didlBuilder.WriteItemElement(dlnaOptions, writer, i, user, item, serverItem.StubType, deviceId, filter);
-                    }
+                    _didlBuilder.WriteFolderElement(xmlWriter, i, null, item, childCount, filter);
+                }
+                else
+                {
+                    _didlBuilder.WriteItemElement(dlnaOptions, xmlWriter, i, _user, item, serverItem.StubType, deviceId, filter);
                 }
-
-                writer.WriteFullEndElement();
-                //writer.WriteEndDocument();
             }
 
-            var resXML = builder.ToString();
+            xmlWriter.WriteFullEndElement();
+            xmlWriter.WriteFullEndElement();
 
-            return new List<KeyValuePair<string, string>>
-                {
-                    new KeyValuePair<string,string>("Result", resXML),
-                    new KeyValuePair<string,string>("NumberReturned", provided.ToString(_usCulture)),
-                    new KeyValuePair<string,string>("TotalMatches", totalCount.ToString(_usCulture)),
-                    new KeyValuePair<string,string>("UpdateID", _systemUpdateId.ToString(_usCulture))
-                };
+            xmlWriter.WriteElementString("NumberReturned", childrenResult.Items.Count.ToString(_usCulture));
+            xmlWriter.WriteElementString("TotalMatches", childrenResult.TotalRecordCount.ToString(_usCulture));
+            xmlWriter.WriteElementString("UpdateID", _systemUpdateId.ToString(_usCulture));
         }
 
         private QueryResult<BaseItem> GetChildrenSorted(BaseItem item, User user, SearchCriteria search, SortCriteria sort, int? startIndex, int? limit)
         {
             var folder = (Folder)item;
 
-            var sortOrders = new List<(string, SortOrder)>();
-            if (!folder.IsPreSorted)
+            var sortOrders = folder.IsPreSorted switch
             {
-                sortOrders.Add((ItemSortBy.SortName, sort.SortOrder));
-            }
+                true => Array.Empty<(string, SortOrder)>(),
+                false => new[] { (ItemSortBy.SortName, sort.SortOrder) }
+            };
 
-            var mediaTypes = new List<string>();
+            string[] mediaTypes = Array.Empty<string>();
             bool? isFolder = null;
 
             if (search.SearchType == SearchType.Audio)
             {
-                mediaTypes.Add(MediaType.Audio);
+                mediaTypes = new[] { MediaType.Audio };
                 isFolder = false;
             }
             else if (search.SearchType == SearchType.Video)
             {
-                mediaTypes.Add(MediaType.Video);
+                mediaTypes = new[] { MediaType.Video };
                 isFolder = false;
             }
             else if (search.SearchType == SearchType.Image)
             {
-                mediaTypes.Add(MediaType.Photo);
+                mediaTypes = new[] { MediaType.Photo };
                 isFolder = false;
             }
             else if (search.SearchType == SearchType.Playlist)
@@ -470,7 +442,7 @@ namespace Emby.Dlna.ContentDirectory
                 IsMissing = false,
                 ExcludeItemTypes = new[] { typeof(Book).Name },
                 IsFolder = isFolder,
-                MediaTypes = mediaTypes.ToArray(),
+                MediaTypes = mediaTypes,
                 DtoOptions = GetDtoOptions()
             });
         }
@@ -1304,11 +1276,11 @@ namespace Emby.Dlna.ContentDirectory
             StubType? stubType = null;
 
             // After using PlayTo, MediaMonkey sends a request to the server trying to get item info
-            const string paramsSrch = "Params=";
-            var paramsIndex = id.IndexOf(paramsSrch, StringComparison.OrdinalIgnoreCase);
+            const string ParamsSrch = "Params=";
+            var paramsIndex = id.IndexOf(ParamsSrch, StringComparison.OrdinalIgnoreCase);
             if (paramsIndex != -1)
             {
-                id = id.Substring(paramsIndex + paramsSrch.Length);
+                id = id.Substring(paramsIndex + ParamsSrch.Length);
 
                 var parts = id.Split(';');
                 id = parts[23];

Emby.Dlna/ContentDirectory/ServiceActionListBuilder.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System.Collections.Generic;
 using Emby.Dlna.Common;
 

Emby.Dlna/ControlRequest.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System.IO;
 using Microsoft.AspNetCore.Http;
 

Emby.Dlna/ControlResponse.cs

@@ -1,18 +1,21 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System.Collections.Generic;
 
 namespace Emby.Dlna
 {
     public class ControlResponse
     {
+        public ControlResponse()
+        {
+            Headers = new Dictionary<string, string>();
+        }
+
         public IDictionary<string, string> Headers { get; set; }
 
         public string Xml { get; set; }
 
         public bool IsSuccessful { get; set; }
-
-        public ControlResponse()
-        {
-            Headers = new Dictionary<string, string>();
-        }
     }
 }

Emby.Dlna/Didl/DidlBuilder.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System;
 using System.Globalization;
 using System.IO;
@@ -18,7 +21,6 @@ using MediaBrowser.Controller.Playlists;
 using MediaBrowser.Model.Dlna;
 using MediaBrowser.Model.Drawing;
 using MediaBrowser.Model.Entities;
-using MediaBrowser.Model.Extensions;
 using MediaBrowser.Model.Globalization;
 using MediaBrowser.Model.Net;
 using Microsoft.Extensions.Logging;

Emby.Dlna/Didl/Filter.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System;
 using MediaBrowser.Model.Extensions;
 

Emby.Dlna/Didl/StringWriterWithEncoding.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System;
 using System.IO;
 using System.Text;

Emby.Dlna/DlnaManager.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System;
 using System.Collections.Generic;
 using System.Globalization;

Emby.Dlna/Emby.Dlna.csproj

@@ -15,6 +15,19 @@
     <TargetFramework>netstandard2.1</TargetFramework>
     <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
+    <TreatWarningsAsErrors Condition=" '$(Configuration)' == 'Release'" >true</TreatWarningsAsErrors>
+  </PropertyGroup>
+
+  <!-- Code Analyzers-->
+  <ItemGroup Condition=" '$(Configuration)' == 'Debug' ">
+    <PackageReference Include="Microsoft.CodeAnalysis.FxCopAnalyzers" Version="2.9.8" PrivateAssets="All" />
+    <PackageReference Include="SerilogAnalyzer" Version="0.15.0" PrivateAssets="All" />
+    <PackageReference Include="StyleCop.Analyzers" Version="1.1.118" PrivateAssets="All" />
+    <PackageReference Include="SmartAnalyzers.MultithreadingAnalyzer" Version="1.1.31" PrivateAssets="All" />
+  </ItemGroup>
+
+  <PropertyGroup Condition=" '$(Configuration)' == 'Debug' ">
+    <CodeAnalysisRuleSet>../jellyfin.ruleset</CodeAnalysisRuleSet>
   </PropertyGroup>
 
   <ItemGroup>

Emby.Dlna/EventSubscriptionResponse.cs

@@ -1,17 +1,21 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System.Collections.Generic;
 
 namespace Emby.Dlna
 {
     public class EventSubscriptionResponse
     {
-        public string Content { get; set; }
-        public string ContentType { get; set; }
-
-        public Dictionary<string, string> Headers { get; set; }
-
         public EventSubscriptionResponse()
         {
             Headers = new Dictionary<string, string>();
         }
+
+        public string Content { get; set; }
+
+        public string ContentType { get; set; }
+
+        public Dictionary<string, string> Headers { get; set; }
     }
 }

Emby.Dlna/Eventing/EventManager.cs

@@ -1,8 +1,12 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System;
 using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.Globalization;
 using System.Linq;
+using System.Net.Http;
 using System.Text;
 using System.Threading.Tasks;
 using MediaBrowser.Common.Extensions;
@@ -164,7 +168,7 @@ namespace Emby.Dlna.Eventing
 
             try
             {
-                using (await _httpClient.SendAsync(options, "NOTIFY").ConfigureAwait(false))
+                using (await _httpClient.SendAsync(options, new HttpMethod("NOTIFY")).ConfigureAwait(false))
                 {
 
                 }

Emby.Dlna/Eventing/EventSubscription.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System;
 
 namespace Emby.Dlna.Eventing
@@ -13,6 +16,8 @@ namespace Emby.Dlna.Eventing
 
         public long TriggerCount { get; set; }
 
+        public bool IsExpired => SubscriptionTime.AddSeconds(TimeoutSeconds) >= DateTime.UtcNow;
+
         public void IncrementTriggerCount()
         {
             if (TriggerCount == long.MaxValue)
@@ -22,7 +27,5 @@ namespace Emby.Dlna.Eventing
 
             TriggerCount++;
         }
-
-        public bool IsExpired => SubscriptionTime.AddSeconds(TimeoutSeconds) >= DateTime.UtcNow;
     }
 }

Emby.Dlna/IConnectionManager.cs

@@ -1,3 +1,5 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
 
 namespace Emby.Dlna
 {

Emby.Dlna/IContentDirectory.cs

@@ -1,3 +1,5 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
 
 namespace Emby.Dlna
 {

Emby.Dlna/IEventManager.cs

@@ -1,3 +1,5 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
 
 namespace Emby.Dlna
 {

Emby.Dlna/IMediaReceiverRegistrar.cs

@@ -1,3 +1,5 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
 
 namespace Emby.Dlna
 {

Emby.Dlna/IUpnpService.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System.Threading.Tasks;
 
 namespace Emby.Dlna

Emby.Dlna/Main/DlnaEntryPoint.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System;
 using System.Net.Sockets;
 using System.Globalization;

Emby.Dlna/MediaReceiverRegistrar/ControlHandler.cs

@@ -1,5 +1,9 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System;
 using System.Collections.Generic;
+using System.Xml;
 using Emby.Dlna.Service;
 using MediaBrowser.Common.Extensions;
 using MediaBrowser.Controller.Configuration;
@@ -9,35 +13,33 @@ namespace Emby.Dlna.MediaReceiverRegistrar
 {
     public class ControlHandler : BaseControlHandler
     {
-        protected override IEnumerable<KeyValuePair<string, string>> GetResult(string methodName, IDictionary<string, string> methodParams)
+        public ControlHandler(IServerConfigurationManager config, ILogger logger)
+            : base(config, logger)
         {
-            if (string.Equals(methodName, "IsAuthorized", StringComparison.OrdinalIgnoreCase))
-                return HandleIsAuthorized();
-            if (string.Equals(methodName, "IsValidated", StringComparison.OrdinalIgnoreCase))
-                return HandleIsValidated();
-
-            throw new ResourceNotFoundException("Unexpected control request name: " + methodName);
         }
 
-        private static IEnumerable<KeyValuePair<string, string>> HandleIsAuthorized()
+        /// <inheritdoc />
+        protected override void WriteResult(string methodName, IDictionary<string, string> methodParams, XmlWriter xmlWriter)
         {
-            return new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase)
+            if (string.Equals(methodName, "IsAuthorized", StringComparison.OrdinalIgnoreCase))
             {
-                { "Result", "1" }
-            };
-        }
+                HandleIsAuthorized(xmlWriter);
+                return;
+            }
 
-        private static IEnumerable<KeyValuePair<string, string>> HandleIsValidated()
-        {
-            return new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase)
+            if (string.Equals(methodName, "IsValidated", StringComparison.OrdinalIgnoreCase))
             {
-                { "Result", "1" }
-            };
-        }
+                HandleIsValidated(xmlWriter);
+                return;
+            }
 
-        public ControlHandler(IServerConfigurationManager config, ILogger logger)
-            : base(config, logger)
-        {
+            throw new ResourceNotFoundException("Unexpected control request name: " + methodName);
         }
+
+        private static void HandleIsAuthorized(XmlWriter xmlWriter)
+            => xmlWriter.WriteElementString("Result", "1");
+
+        private static void HandleIsValidated(XmlWriter xmlWriter)
+            => xmlWriter.WriteElementString("Result", "1");
     }
 }

Emby.Dlna/MediaReceiverRegistrar/MediaReceiverRegistrar.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System.Threading.Tasks;
 using Emby.Dlna.Service;
 using MediaBrowser.Common.Net;

Emby.Dlna/MediaReceiverRegistrar/MediaReceiverRegistrarXmlBuilder.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System.Collections.Generic;
 using Emby.Dlna.Common;
 using Emby.Dlna.Service;

Emby.Dlna/MediaReceiverRegistrar/ServiceActionListBuilder.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System.Collections.Generic;
 using Emby.Dlna.Common;
 

Emby.Dlna/PlayTo/Device.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System;
 using System.Collections.Generic;
 using System.Globalization;
@@ -221,7 +224,7 @@ namespace Emby.Dlna.PlayTo
             _logger.LogDebug("Setting mute");
             var value = mute ? 1 : 0;
 
-            await new SsdpHttpClient(_httpClient, _config).SendCommandAsync(Properties.BaseUrl, service, command.Name, rendererCommands.BuildPost(command, service.ServiceType, value))
+            await new SsdpHttpClient(_httpClient).SendCommandAsync(Properties.BaseUrl, service, command.Name, rendererCommands.BuildPost(command, service.ServiceType, value))
                 .ConfigureAwait(false);
 
             IsMuted = mute;
@@ -251,7 +254,7 @@ namespace Emby.Dlna.PlayTo
             // Remote control will perform better
             Volume = value;
 
-            await new SsdpHttpClient(_httpClient, _config).SendCommandAsync(Properties.BaseUrl, service, command.Name, rendererCommands.BuildPost(command, service.ServiceType, value))
+            await new SsdpHttpClient(_httpClient).SendCommandAsync(Properties.BaseUrl, service, command.Name, rendererCommands.BuildPost(command, service.ServiceType, value))
                 .ConfigureAwait(false);
         }
 
@@ -270,7 +273,7 @@ namespace Emby.Dlna.PlayTo
                 throw new InvalidOperationException("Unable to find service");
             }
 
-            await new SsdpHttpClient(_httpClient, _config).SendCommandAsync(Properties.BaseUrl, service, command.Name, avCommands.BuildPost(command, service.ServiceType, string.Format("{0:hh}:{0:mm}:{0:ss}", value), "REL_TIME"))
+            await new SsdpHttpClient(_httpClient).SendCommandAsync(Properties.BaseUrl, service, command.Name, avCommands.BuildPost(command, service.ServiceType, string.Format("{0:hh}:{0:mm}:{0:ss}", value), "REL_TIME"))
                 .ConfigureAwait(false);
 
             RestartTimer(true);
@@ -302,7 +305,7 @@ namespace Emby.Dlna.PlayTo
             }
 
             var post = avCommands.BuildPost(command, service.ServiceType, url, dictionary);
-            await new SsdpHttpClient(_httpClient, _config).SendCommandAsync(Properties.BaseUrl, service, command.Name, post, header: header)
+            await new SsdpHttpClient(_httpClient).SendCommandAsync(Properties.BaseUrl, service, command.Name, post, header: header)
                 .ConfigureAwait(false);
 
             await Task.Delay(50).ConfigureAwait(false);
@@ -344,7 +347,7 @@ namespace Emby.Dlna.PlayTo
                 throw new InvalidOperationException("Unable to find service");
             }
 
-            return new SsdpHttpClient(_httpClient, _config).SendCommandAsync(Properties.BaseUrl, service, command.Name, avCommands.BuildPost(command, service.ServiceType, 1));
+            return new SsdpHttpClient(_httpClient).SendCommandAsync(Properties.BaseUrl, service, command.Name, avCommands.BuildPost(command, service.ServiceType, 1));
         }
 
         public async Task SetPlay(CancellationToken cancellationToken)
@@ -368,7 +371,7 @@ namespace Emby.Dlna.PlayTo
 
             var service = GetAvTransportService();
 
-            await new SsdpHttpClient(_httpClient, _config).SendCommandAsync(Properties.BaseUrl, service, command.Name, avCommands.BuildPost(command, service.ServiceType, 1))
+            await new SsdpHttpClient(_httpClient).SendCommandAsync(Properties.BaseUrl, service, command.Name, avCommands.BuildPost(command, service.ServiceType, 1))
                 .ConfigureAwait(false);
 
             RestartTimer(true);
@@ -386,7 +389,7 @@ namespace Emby.Dlna.PlayTo
 
             var service = GetAvTransportService();
 
-            await new SsdpHttpClient(_httpClient, _config).SendCommandAsync(Properties.BaseUrl, service, command.Name, avCommands.BuildPost(command, service.ServiceType, 1))
+            await new SsdpHttpClient(_httpClient).SendCommandAsync(Properties.BaseUrl, service, command.Name, avCommands.BuildPost(command, service.ServiceType, 1))
                 .ConfigureAwait(false);
 
             TransportState = TRANSPORTSTATE.PAUSED;
@@ -513,7 +516,7 @@ namespace Emby.Dlna.PlayTo
                 return;
             }
 
-            var result = await new SsdpHttpClient(_httpClient, _config).SendCommandAsync(Properties.BaseUrl, service, command.Name, rendererCommands.BuildPost(command, service.ServiceType), true)
+            var result = await new SsdpHttpClient(_httpClient).SendCommandAsync(Properties.BaseUrl, service, command.Name, rendererCommands.BuildPost(command, service.ServiceType), true)
                 .ConfigureAwait(false);
 
             if (result == null || result.Document == null)
@@ -559,7 +562,7 @@ namespace Emby.Dlna.PlayTo
                 return;
             }
 
-            var result = await new SsdpHttpClient(_httpClient, _config).SendCommandAsync(Properties.BaseUrl, service, command.Name, rendererCommands.BuildPost(command, service.ServiceType), true)
+            var result = await new SsdpHttpClient(_httpClient).SendCommandAsync(Properties.BaseUrl, service, command.Name, rendererCommands.BuildPost(command, service.ServiceType), true)
                 .ConfigureAwait(false);
 
             if (result == null || result.Document == null)
@@ -586,7 +589,7 @@ namespace Emby.Dlna.PlayTo
                 return null;
             }
 
-            var result = await new SsdpHttpClient(_httpClient, _config).SendCommandAsync(Properties.BaseUrl, service, command.Name, avCommands.BuildPost(command, service.ServiceType), false)
+            var result = await new SsdpHttpClient(_httpClient).SendCommandAsync(Properties.BaseUrl, service, command.Name, avCommands.BuildPost(command, service.ServiceType), false)
                 .ConfigureAwait(false);
 
             if (result == null || result.Document == null)
@@ -624,7 +627,7 @@ namespace Emby.Dlna.PlayTo
 
             var rendererCommands = await GetRenderingProtocolAsync(cancellationToken).ConfigureAwait(false);
 
-            var result = await new SsdpHttpClient(_httpClient, _config).SendCommandAsync(Properties.BaseUrl, service, command.Name, rendererCommands.BuildPost(command, service.ServiceType), false)
+            var result = await new SsdpHttpClient(_httpClient).SendCommandAsync(Properties.BaseUrl, service, command.Name, rendererCommands.BuildPost(command, service.ServiceType), false)
                 .ConfigureAwait(false);
 
             if (result == null || result.Document == null)
@@ -687,7 +690,7 @@ namespace Emby.Dlna.PlayTo
 
             var rendererCommands = await GetRenderingProtocolAsync(cancellationToken).ConfigureAwait(false);
 
-            var result = await new SsdpHttpClient(_httpClient, _config).SendCommandAsync(Properties.BaseUrl, service, command.Name, rendererCommands.BuildPost(command, service.ServiceType), false)
+            var result = await new SsdpHttpClient(_httpClient).SendCommandAsync(Properties.BaseUrl, service, command.Name, rendererCommands.BuildPost(command, service.ServiceType), false)
                 .ConfigureAwait(false);
 
             if (result == null || result.Document == null)
@@ -868,7 +871,7 @@ namespace Emby.Dlna.PlayTo
 
             string url = NormalizeUrl(Properties.BaseUrl, avService.ScpdUrl);
 
-            var httpClient = new SsdpHttpClient(_httpClient, _config);
+            var httpClient = new SsdpHttpClient(_httpClient);
 
             var document = await httpClient.GetDataAsync(url, cancellationToken).ConfigureAwait(false);
 
@@ -896,7 +899,7 @@ namespace Emby.Dlna.PlayTo
 
             string url = NormalizeUrl(Properties.BaseUrl, avService.ScpdUrl);
 
-            var httpClient = new SsdpHttpClient(_httpClient, _config);
+            var httpClient = new SsdpHttpClient(_httpClient);
             _logger.LogDebug("Dlna Device.GetRenderingProtocolAsync");
             var document = await httpClient.GetDataAsync(url, cancellationToken).ConfigureAwait(false);
 
@@ -931,7 +934,7 @@ namespace Emby.Dlna.PlayTo
 
         public static async Task<Device> CreateuPnpDeviceAsync(Uri url, IHttpClient httpClient, IServerConfigurationManager config, ILogger logger, CancellationToken cancellationToken)
         {
-            var ssdpHttpClient = new SsdpHttpClient(httpClient, config);
+            var ssdpHttpClient = new SsdpHttpClient(httpClient);
 
             var document = await ssdpHttpClient.GetDataAsync(url.ToString(), cancellationToken).ConfigureAwait(false);
 

Emby.Dlna/PlayTo/DeviceInfo.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System.Collections.Generic;
 using Emby.Dlna.Common;
 using MediaBrowser.Model.Dlna;

Emby.Dlna/PlayTo/PlayToController.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System;
 using System.Collections.Generic;
 using System.Globalization;

Emby.Dlna/PlayTo/PlayToManager.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System;
 using System.Globalization;
 using System.Linq;
@@ -21,7 +24,7 @@ using Microsoft.Extensions.Logging;
 
 namespace Emby.Dlna.PlayTo
 {
-    class PlayToManager : IDisposable
+    public class PlayToManager : IDisposable
     {
         private readonly ILogger _logger;
         private readonly ISessionManager _sessionManager;
@@ -64,10 +67,10 @@ namespace Emby.Dlna.PlayTo
 
         public void Start()
         {
-            _deviceDiscovery.DeviceDiscovered += _deviceDiscovery_DeviceDiscovered;
+            _deviceDiscovery.DeviceDiscovered += OnDeviceDiscoveryDeviceDiscovered;
         }
 
-        async void _deviceDiscovery_DeviceDiscovered(object sender, GenericEventArgs<UpnpDeviceInfo> e)
+        private async void OnDeviceDiscoveryDeviceDiscovered(object sender, GenericEventArgs<UpnpDeviceInfo> e)
         {
             if (_disposed)
             {
@@ -231,7 +234,7 @@ namespace Emby.Dlna.PlayTo
 
         public void Dispose()
         {
-            _deviceDiscovery.DeviceDiscovered -= _deviceDiscovery_DeviceDiscovered;
+            _deviceDiscovery.DeviceDiscovered -= OnDeviceDiscoveryDeviceDiscovered;
 
             try
             {

Emby.Dlna/PlayTo/PlaybackProgressEventArgs.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System;
 
 namespace Emby.Dlna.PlayTo

Emby.Dlna/PlayTo/PlaybackStartEventArgs.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System;
 
 namespace Emby.Dlna.PlayTo

Emby.Dlna/PlayTo/PlaybackStoppedEventArgs.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System;
 
 namespace Emby.Dlna.PlayTo

Emby.Dlna/PlayTo/PlaylistItem.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using MediaBrowser.Model.Dlna;
 
 namespace Emby.Dlna.PlayTo

Emby.Dlna/PlayTo/PlaylistItemFactory.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System.Globalization;
 using System.IO;
 using System.Linq;

Emby.Dlna/PlayTo/SsdpHttpClient.cs

@@ -1,13 +1,16 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System;
 using System.Globalization;
 using System.IO;
+using System.Net.Http;
 using System.Text;
 using System.Threading;
 using System.Threading.Tasks;
 using System.Xml.Linq;
 using Emby.Dlna.Common;
 using MediaBrowser.Common.Net;
-using MediaBrowser.Controller.Configuration;
 
 namespace Emby.Dlna.PlayTo
 {
@@ -19,12 +22,10 @@ namespace Emby.Dlna.PlayTo
         private readonly CultureInfo _usCulture = new CultureInfo("en-US");
 
         private readonly IHttpClient _httpClient;
-        private readonly IServerConfigurationManager _config;
 
-        public SsdpHttpClient(IHttpClient httpClient, IServerConfigurationManager config)
+        public SsdpHttpClient(IHttpClient httpClient)
         {
             _httpClient = httpClient;
-            _config = config;
         }
 
         public async Task<XDocument> SendCommandAsync(
@@ -64,7 +65,9 @@ namespace Emby.Dlna.PlayTo
             }
 
             if (!serviceUrl.StartsWith("/"))
+            {
                 serviceUrl = "/" + serviceUrl;
+            }
 
             return baseUrl + serviceUrl;
         }
@@ -90,7 +93,7 @@ namespace Emby.Dlna.PlayTo
             options.RequestHeaders["NT"] = "upnp:event";
             options.RequestHeaders["TIMEOUT"] = "Second-" + timeOut.ToString(_usCulture);
 
-            using (await _httpClient.SendAsync(options, "SUBSCRIBE").ConfigureAwait(false))
+            using (await _httpClient.SendAsync(options, new HttpMethod("SUBSCRIBE")).ConfigureAwait(false))
             {
 
             }
@@ -110,7 +113,7 @@ namespace Emby.Dlna.PlayTo
 
             options.RequestHeaders["FriendlyName.DLNA.ORG"] = FriendlyName;
 
-            using (var response = await _httpClient.SendAsync(options, "GET").ConfigureAwait(false))
+            using (var response = await _httpClient.SendAsync(options, HttpMethod.Get).ConfigureAwait(false))
             using (var stream = response.Content)
             using (var reader = new StreamReader(stream, Encoding.UTF8))
             {

Emby.Dlna/PlayTo/TRANSPORTSTATE.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 namespace Emby.Dlna.PlayTo
 {
     public enum TRANSPORTSTATE

Emby.Dlna/PlayTo/TransportCommands.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System;
 using System.Collections.Generic;
 using System.Linq;

Emby.Dlna/PlayTo/UpnpContainer.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System;
 using System.Xml.Linq;
 using Emby.Dlna.Ssdp;

Emby.Dlna/PlayTo/uBaseObject.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System;
 
 namespace Emby.Dlna.PlayTo

Emby.Dlna/PlayTo/uPnpNamespaces.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System.Xml.Linq;
 
 namespace Emby.Dlna.PlayTo

Emby.Dlna/Profiles/DefaultProfile.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System.Linq;
 using MediaBrowser.Model.Dlna;
 

Emby.Dlna/Profiles/DenonAvrProfile.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using MediaBrowser.Model.Dlna;
 
 namespace Emby.Dlna.Profiles

Emby.Dlna/Profiles/DirectTvProfile.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using MediaBrowser.Model.Dlna;
 
 namespace Emby.Dlna.Profiles

Emby.Dlna/Profiles/DishHopperJoeyProfile.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using MediaBrowser.Model.Dlna;
 
 namespace Emby.Dlna.Profiles

Emby.Dlna/Profiles/Foobar2000Profile.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using MediaBrowser.Model.Dlna;
 
 namespace Emby.Dlna.Profiles

Emby.Dlna/Profiles/LgTvProfile.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using MediaBrowser.Model.Dlna;
 
 namespace Emby.Dlna.Profiles

Emby.Dlna/Profiles/LinksysDMA2100Profile.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using MediaBrowser.Model.Dlna;
 
 namespace Emby.Dlna.Profiles

Emby.Dlna/Profiles/MarantzProfile.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using MediaBrowser.Model.Dlna;
 
 namespace Emby.Dlna.Profiles

Emby.Dlna/Profiles/MediaMonkeyProfile.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using MediaBrowser.Model.Dlna;
 
 namespace Emby.Dlna.Profiles

Emby.Dlna/Profiles/PanasonicVieraProfile.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using MediaBrowser.Model.Dlna;
 
 namespace Emby.Dlna.Profiles

Emby.Dlna/Profiles/PopcornHourProfile.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using MediaBrowser.Model.Dlna;
 
 namespace Emby.Dlna.Profiles

Emby.Dlna/Profiles/SamsungSmartTvProfile.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using MediaBrowser.Model.Dlna;
 
 namespace Emby.Dlna.Profiles

Emby.Dlna/Profiles/SharpSmartTvProfile.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using MediaBrowser.Model.Dlna;
 
 namespace Emby.Dlna.Profiles

Emby.Dlna/Profiles/SonyBlurayPlayer2013.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using MediaBrowser.Model.Dlna;
 
 namespace Emby.Dlna.Profiles

Emby.Dlna/Profiles/SonyBlurayPlayer2014.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using MediaBrowser.Model.Dlna;
 
 namespace Emby.Dlna.Profiles

Emby.Dlna/Profiles/SonyBlurayPlayer2015.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using MediaBrowser.Model.Dlna;
 
 namespace Emby.Dlna.Profiles

Emby.Dlna/Profiles/SonyBlurayPlayer2016.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using MediaBrowser.Model.Dlna;
 
 namespace Emby.Dlna.Profiles

Emby.Dlna/Profiles/SonyBlurayPlayerProfile.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using MediaBrowser.Model.Dlna;
 
 namespace Emby.Dlna.Profiles

Emby.Dlna/Profiles/SonyBravia2010Profile.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using MediaBrowser.Model.Dlna;
 
 namespace Emby.Dlna.Profiles

Emby.Dlna/Profiles/SonyBravia2011Profile.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using MediaBrowser.Model.Dlna;
 
 namespace Emby.Dlna.Profiles

Emby.Dlna/Profiles/SonyBravia2012Profile.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using MediaBrowser.Model.Dlna;
 
 namespace Emby.Dlna.Profiles

Emby.Dlna/Profiles/SonyBravia2013Profile.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using MediaBrowser.Model.Dlna;
 
 namespace Emby.Dlna.Profiles

Emby.Dlna/Profiles/SonyBravia2014Profile.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using MediaBrowser.Model.Dlna;
 
 namespace Emby.Dlna.Profiles

Emby.Dlna/Profiles/SonyPs3Profile.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using MediaBrowser.Model.Dlna;
 
 namespace Emby.Dlna.Profiles

Emby.Dlna/Profiles/SonyPs4Profile.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using MediaBrowser.Model.Dlna;
 
 namespace Emby.Dlna.Profiles

Emby.Dlna/Profiles/WdtvLiveProfile.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using MediaBrowser.Model.Dlna;
 
 namespace Emby.Dlna.Profiles

Emby.Dlna/Profiles/XboxOneProfile.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using MediaBrowser.Model.Dlna;
 
 namespace Emby.Dlna.Profiles

Emby.Dlna/Server/DescriptionXmlBuilder.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System;
 using System.Collections.Generic;
 using System.Globalization;

Emby.Dlna/Service/BaseControlHandler.cs

@@ -1,7 +1,9 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System;
 using System.Collections.Generic;
 using System.IO;
-using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 using System.Xml;
@@ -66,8 +68,6 @@ namespace Emby.Dlna.Service
 
             Logger.LogDebug("Received control request {0}", requestInfo.LocalName);
 
-            var result = GetResult(requestInfo.LocalName, requestInfo.Headers);
-
             var settings = new XmlWriterSettings
             {
                 Encoding = Encoding.UTF8,
@@ -85,12 +85,9 @@ namespace Emby.Dlna.Service
 
                 writer.WriteStartElement("SOAP-ENV", "Body", NS_SOAPENV);
                 writer.WriteStartElement("u", requestInfo.LocalName + "Response", requestInfo.NamespaceURI);
-                foreach (var i in result)
-                {
-                    writer.WriteStartElement(i.Key);
-                    writer.WriteString(i.Value);
-                    writer.WriteFullEndElement();
-                }
+
+                WriteResult(requestInfo.LocalName, requestInfo.Headers, writer);
+
                 writer.WriteFullEndElement();
                 writer.WriteFullEndElement();
 
@@ -219,7 +216,7 @@ namespace Emby.Dlna.Service
             public Dictionary<string, string> Headers { get; } = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
         }
 
-        protected abstract IEnumerable<KeyValuePair<string, string>> GetResult(string methodName, IDictionary<string, string> methodParams);
+        protected abstract void WriteResult(string methodName, IDictionary<string, string> methodParams, XmlWriter xmlWriter);
 
         private void LogRequest(ControlRequest request)
         {

Emby.Dlna/Service/BaseService.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using Emby.Dlna.Eventing;
 using MediaBrowser.Common.Net;
 using Microsoft.Extensions.Logging;

Emby.Dlna/Service/ControlErrorHandler.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System;
 using System.IO;
 using System.Text;

Emby.Dlna/Service/ServiceXmlBuilder.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System.Collections.Generic;
 using System.Text;
 using Emby.Dlna.Common;

Emby.Dlna/Ssdp/DeviceDiscovery.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -9,16 +12,16 @@ using Rssdp.Infrastructure;
 
 namespace Emby.Dlna.Ssdp
 {
-    public class DeviceDiscovery : IDeviceDiscovery
+    public sealed class DeviceDiscovery : IDeviceDiscovery, IDisposable
     {
-        private bool _disposed;
+        private readonly object _syncLock = new object();
 
         private readonly IServerConfigurationManager _config;
 
-        private event EventHandler<GenericEventArgs<UpnpDeviceInfo>> DeviceDiscoveredInternal;
-
         private int _listenerCount;
-        private object _syncLock = new object();
+        private bool _disposed;
+
+        private event EventHandler<GenericEventArgs<UpnpDeviceInfo>> DeviceDiscoveredInternal;
 
         /// <inheritdoc />
         public event EventHandler<GenericEventArgs<UpnpDeviceInfo>> DeviceDiscovered
@@ -33,6 +36,7 @@ namespace Emby.Dlna.Ssdp
 
                 StartInternal();
             }
+
             remove
             {
                 lock (_syncLock)
@@ -130,6 +134,7 @@ namespace Emby.Dlna.Ssdp
             DeviceLeft?.Invoke(this, args);
         }
 
+        /// <inheritdoc />
         public void Dispose()
         {
             if (!_disposed)

Emby.Dlna/Ssdp/Extensions.cs

@@ -1,3 +1,6 @@
+#pragma warning disable CS1591
+#pragma warning disable SA1600
+
 using System.Xml.Linq;
 
 namespace Emby.Dlna.Ssdp