HttpRequest.Body was not working when content-type is form url encoded.

dotnet/src/dotnetframework/GxClasses/Core/Web/GxHttpServer.cs

@@ -11,6 +11,12 @@ namespace GeneXus.Http.Server
 	using Microsoft.AspNetCore.Http.Extensions;
 	using System.Linq;
 	using Microsoft.AspNetCore.Http.Features;
+	using System.Text;
+	using System.Threading.Tasks;
+	using Microsoft.AspNetCore.Mvc.Formatters;
+	using System.Net.Http;
+	using Stubble.Core.Contexts;
+	using System.Net.Mime;
 #endif
 
 	public class GxHttpCookie
@@ -391,9 +397,9 @@ public string GetValue( string name)
 		public override string ToString()
 		{
 			if (_httpReq == null)
-				return "";
+				return String.Empty;
 #if NETCORE
-			return (new StreamReader(_httpReq.Body)).ReadToEnd();
+			return _httpReq.GetRawBodyString();
 #else
 			return (new StreamReader(_httpReq.InputStream)).ReadToEnd();
 #endif

dotnet/src/dotnetframework/GxClasses/Helpers/HttpHelper.cs

@@ -9,6 +9,7 @@
 using Microsoft.AspNetCore.Http.Features;
 using Microsoft.Extensions.Primitives;
 using System.Net.Http;
+using Microsoft.AspNetCore.Mvc.Formatters;
 #else
 using System.ServiceModel.Web;
 using System.ServiceModel;
@@ -21,10 +22,6 @@
 using System.Net;
 using System.Text;
 using System.Web;
-using System.Threading.Tasks;
-using System.Threading;
-using System.Linq;
-using GeneXus.Data;
 using System.Runtime.Serialization;
 using GeneXus.Mime;
 using System.Text.RegularExpressions;
@@ -711,8 +708,37 @@ public static NameValueCollection GetParams(this HttpRequest request)
 			return request.Params;
 #endif
 		}
+#if NETCORE
+		static readonly MediaType URLEncoded = new MediaType("application/x-www-form-urlencoded");
+		public static string GetRawBodyString(this HttpRequest request, Encoding encoding = null)
+		{
+			if (encoding == null)
+				encoding = Encoding.UTF8;
 
+			if (!string.IsNullOrEmpty(request.ContentType))
+			{
+				MediaType mediaType = new MediaType(request.ContentType);
 
+				if (mediaType.IsSubsetOf(URLEncoded))
+				{
+					string content = string.Empty;
+					foreach (string key in request.Form.Keys)
+					{
+						if (request.Form.TryGetValue(key, out var value))
+						{
+							content += $"{GXUtil.UrlEncode(key)}={GXUtil.UrlEncode(value)}&"; 
+						}
+					}
+					content = content.TrimEnd('&');
+					return content;
+				}
+			}
+			using (StreamReader sr = new StreamReader(request.Body, encoding))
+			{
+				return sr.ReadToEnd();
+			}
+		}
+#endif
 		public static string GetRawUrl(this HttpRequest request)
 		{
 #if NETCORE

dotnet/test/DotNetCoreUnitTest/Middleware/WebPanelTest.cs

@@ -0,0 +1,52 @@
+using System.Collections.Generic;
+using System.Net.Http;
+using System.Reflection;
+using System.Text;
+using System.Threading.Tasks;
+using GeneXus.Metadata;
+using Xunit;
+namespace xUnitTesting
+{
+	public class WebPanelTest : MiddlewareTest
+	{
+		Dictionary<string, string> parms = new Dictionary<string, string>();
+		FormUrlEncodedContent formUrlEncodedContent;
+		public WebPanelTest():base()
+		{
+			ClassLoader.FindType("webhook", "GeneXus.Programs", "webhook", Assembly.GetExecutingAssembly(), true);//Force loading assembly for webhook procedure
+			server.AllowSynchronousIO=true;
+			parms.Add("SmsMessageSid", "SM40d2cbda93b2de0a15df7a1598c7db83");
+			parms.Add("NumMedia", "99");
+			parms.Add("WaId", "5215532327636");
+			parms.Add("From", "whatsapp:+5215532327636");
+			parms.Add("ProfileName", "Jhon Thomas");
+			formUrlEncodedContent = new FormUrlEncodedContent(parms);
+		}
+		[Fact]
+		public async Task HtttpResponseBodyNotEmpty_WhenFormURLEncoded()
+		{
+			HttpClient client = server.CreateClient();
+
+			HttpResponseMessage response = await client.PostAsync("webhook.aspx", formUrlEncodedContent);//"application/x-www-form-urlencoded"
+			response.EnsureSuccessStatusCode();
+			string resp = await response.Content.ReadAsStringAsync();
+			string expected = await formUrlEncodedContent.ReadAsStringAsync();
+			Assert.Equal(expected, resp);
+			Assert.Equal(System.Net.HttpStatusCode.OK, response.StatusCode); 
+		}
+		[Fact]
+		public async Task HtttpResponseBodyNotEmpty_WhenTextPlain()
+		{
+			HttpClient client = server.CreateClient();
+			string plainText = await formUrlEncodedContent.ReadAsStringAsync();
+			StringContent content = new StringContent(plainText, Encoding.UTF8, "text/plain");
+			HttpResponseMessage response = await client.PostAsync("webhook.aspx", content);
+			response.EnsureSuccessStatusCode();
+			string resp = await response.Content.ReadAsStringAsync();
+			string expected = await content.ReadAsStringAsync();
+			Assert.Equal(expected, resp);
+			Assert.Equal(System.Net.HttpStatusCode.OK, response.StatusCode);
+		}
+	}
+
+}

dotnet/test/DotNetCoreUnitTest/Middleware/webhook.cs

@@ -0,0 +1,103 @@
+using System;
+using GeneXus.Application;
+using GeneXus.Data.NTier;
+using GeneXus.Http.Server;
+using GeneXus.Procedure;
+using GeneXus.Utils;
+namespace GeneXus.Programs
+{
+	public class webhook : GXWebProcedure
+	{
+		public override void webExecute()
+		{
+			context.SetDefaultTheme("Carmine");
+			initialize();
+			executePrivate();
+			cleanup();
+		}
+
+		public webhook()
+		{
+			context = new GxContext();
+			DataStoreUtil.LoadDataStores(context);
+			IsMain = true;
+			context.SetDefaultTheme("Carmine");
+		}
+
+		public webhook(IGxContext context)
+		{
+			this.context = context;
+			IsMain = false;
+		}
+
+		public void execute()
+		{
+			initialize();
+			executePrivate();
+		}
+
+		public void executeSubmit()
+		{
+			webhook objwebhook;
+			objwebhook = new webhook();
+			objwebhook.context.SetSubmitInitialConfig(context);
+			objwebhook.initialize();
+			Submit(executePrivateCatch, objwebhook);
+		}
+
+		void executePrivateCatch(object stateInfo)
+		{
+			try
+			{
+				((webhook)stateInfo).executePrivate();
+			}
+			catch (Exception e)
+			{
+				GXUtil.SaveToEventLog("Design", e);
+				throw;
+			}
+		}
+
+		void executePrivate()
+		{
+			/* GeneXus formulas */
+			/* Output device settings */
+			AV9body = AV8httprequest.ToString();
+			AV10httpresponse.AddString(AV9body);
+			if (context.WillRedirect())
+			{
+				context.Redirect(context.wjLoc);
+				context.wjLoc = "";
+			}
+			this.cleanup();
+		}
+
+		public override void cleanup()
+		{
+			CloseOpenCursors();
+			base.cleanup();
+			if (IsMain)
+			{
+				context.CloseConnections();
+			}
+			ExitApp();
+		}
+
+		protected void CloseOpenCursors()
+		{
+		}
+
+		public override void initialize()
+		{
+			AV8httprequest = new GxHttpRequest(context);
+			AV10httpresponse = new GxHttpResponse(context);
+			/* GeneXus formulas. */
+			context.Gx_err = 0;
+		}
+
+		private string AV9body;
+		private GxHttpRequest AV8httprequest;
+		private GxHttpResponse AV10httpresponse;
+	}
+
+}