imported signalr 1.1.3 into NzbDrone.

src/Microsoft.AspNet.SignalR.Core/Hubs/HubRequestParser.cs

@@ -0,0 +1,69 @@
+// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.md in the project root for license information.
+
+using System;
+using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
+using System.Linq;
+using Microsoft.AspNet.SignalR.Json;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Linq;
+
+namespace Microsoft.AspNet.SignalR.Hubs
+{
+    internal class HubRequestParser : IHubRequestParser
+    {
+        private static readonly IJsonValue[] _emptyArgs = new IJsonValue[0];
+
+        public HubRequest Parse(string data)
+        {
+            var serializer = new JsonNetSerializer();
+            var deserializedData = serializer.Parse<HubInvocation>(data);
+
+            var request = new HubRequest();
+
+            request.Hub = deserializedData.Hub;
+            request.Method = deserializedData.Method;
+            request.Id = deserializedData.Id;
+            request.State = GetState(deserializedData);
+            request.ParameterValues = (deserializedData.Args != null) ? deserializedData.Args.Select(value => new JRawValue(value)).ToArray() : _emptyArgs;
+
+            return request;
+        }
+
+        [SuppressMessage("Microsoft.Performance", "CA1812:AvoidUninstantiatedInternalClasses", Justification = "This type is used for deserialzation")]
+        private class HubInvocation
+        {
+            [JsonProperty("H")]
+            public string Hub { get; set; }
+            [JsonProperty("M")]
+            public string Method { get; set; }
+            [JsonProperty("I")]
+            public string Id { get; set; }
+            [JsonProperty("S")]
+            public JRaw State { get; set; }
+            [JsonProperty("A")]
+            public JRaw[] Args { get; set; }
+        }
+
+        private static IDictionary<string, object> GetState(HubInvocation deserializedData)
+        {
+            if (deserializedData.State == null)
+            {
+                return new Dictionary<string, object>();
+            }
+
+            // Get the raw JSON string and check if it's over 4K
+            string json = deserializedData.State.ToString();
+
+            if (json.Length > 4096)
+            {
+                throw new InvalidOperationException(Resources.Error_StateExceededMaximumLength);
+            }
+
+            var settings = new JsonSerializerSettings();
+            settings.Converters.Add(new SipHashBasedDictionaryConverter());
+            var serializer = new JsonNetSerializer(settings);
+            return serializer.Parse<IDictionary<string, object>>(json);
+        }
+    }
+}