Use Json.Net for MVC ValueProviderFactory

2016-10-06 19:39:19 +11:00
parent e082c22983
commit 1dfa3f4f15
13 changed files with 51 additions and 45 deletions
@@ -0,0 +1,38 @@
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using System;
+using System.Dynamic;
+using System.Globalization;
+using System.IO;
+using System.Text;
+using System.Web.Mvc;
+
+namespace Disco.Web.Extensions
+{
+    public class JsonDotNetValueProviderFactory : ValueProviderFactory
+    {
+        public override IValueProvider GetValueProvider(ControllerContext controllerContext)
+        {
+            if (controllerContext == null)
+                throw new ArgumentNullException(nameof(controllerContext));
+
+            if (!controllerContext.HttpContext.Request.ContentType.StartsWith("application/json", StringComparison.OrdinalIgnoreCase))
+                return null;
+
+            if (controllerContext.HttpContext.Request.InputStream.Length == 0)
+                return null;
+
+            var jsonSerializer = new JsonSerializer();
+            jsonSerializer.Converters.Add(new ExpandoObjectConverter());
+
+            using (var streamReader = new StreamReader(controllerContext.HttpContext.Request.InputStream, Encoding.UTF8, true, 0x400, true))
+            {
+                using (var jsonReader = new JsonTextReader(streamReader))
+                {
+                    var bodyObject = jsonSerializer.Deserialize<ExpandoObject>(jsonReader);
+                    return new DictionaryValueProvider<object>(bodyObject, CultureInfo.CurrentCulture);
+                }
+            }
+        }
+    }
+}