Added possibility to do ping request (SendPingAsync method)

README.md

@@ -160,6 +160,7 @@ For your convenience TLSharp have wrappers for several Telegram API methods. You
 1. SendUploadedDocument
 1. GetFile
 1. UploadFile
+1. SendPingAsync
 
 **What if you can't find needed method at the list?**
 

TLSharp.Core/Network/MtProtoSender.cs

@@ -148,6 +148,19 @@ namespace TLSharp.Core.Network
             return null;
         }
 
+        public async Task SendPingAsync()
+        {
+            var pingRequest = new PingRequest();
+            using (var memory = new MemoryStream())
+            using (var writer = new BinaryWriter(memory))
+            {
+                pingRequest.SerializeBody(writer);
+                await Send(memory.ToArray(), pingRequest);
+            }
+
+            await Receive(pingRequest);
+        }
+
         private bool processMessage(ulong messageId, int sequence, BinaryReader messageReader, TeleSharp.TL.TLMethod request)
         {
             // TODO: check salt
@@ -169,7 +182,7 @@ namespace TLSharp.Core.Network
                     return HandlePing(messageId, sequence, messageReader);
                 case 0x347773c5: // pong
                                  //logger.debug("MSG pong");
-                    return HandlePong(messageId, sequence, messageReader);
+                    return HandlePong(messageId, sequence, messageReader, request);
                 case 0xae500895: // future_salts
                                  //logger.debug("MSG future_salts");
                     return HandleFutureSalts(messageId, sequence, messageReader);
@@ -455,8 +468,16 @@ namespace TLSharp.Core.Network
             return true;
         }
 
-        private bool HandlePong(ulong messageId, int sequence, BinaryReader messageReader)
+        private bool HandlePong(ulong messageId, int sequence, BinaryReader messageReader, TeleSharp.TL.TLMethod request)
         {
+            uint code = messageReader.ReadUInt32();
+            ulong msgId = messageReader.ReadUInt64();
+
+            if (msgId == (ulong)request.MessageId)
+            {
+                request.ConfirmReceived = true;
+            }
+
             return false;
         }
 

TLSharp.Core/Requests/PingRequest.cs

@@ -0,0 +1,39 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using TeleSharp.TL;
+using TLSharp.Core.Utils;
+
+namespace TLSharp.Core.Requests
+{
+    public class PingRequest : TeleSharp.TL.TLMethod
+    {
+        public PingRequest()
+        {
+        }
+
+        public override void SerializeBody(BinaryWriter writer)
+        {
+            writer.Write(Constructor);
+            writer.Write(Helpers.GenerateRandomLong());
+        }
+
+        public override void DeserializeBody(BinaryReader reader)
+        {
+            throw new NotImplementedException();
+        }
+
+        public override void deserializeResponse(BinaryReader stream)
+        {
+            throw new NotImplementedException();
+        }
+
+        public override int Constructor
+        {
+            get
+            {
+                return 0x7abe77ec;
+            }
+        }
+    }
+}

TLSharp.Core/TLSharp.Core.csproj

@@ -63,6 +63,7 @@
     <Compile Include="Network\TcpTransport.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Requests\AckRequest.cs" />
+    <Compile Include="Requests\PingRequest.cs" />
     <Compile Include="Utils\UploadHelper.cs" />
     <Compile Include="Session.cs" />
     <Compile Include="TelegramClient.cs" />

TLSharp.Core/TelegramClient.cs

@@ -174,7 +174,7 @@ namespace TLSharp.Core
         {
             await _sender.Send(methodToExecute);
             await _sender.Receive(methodToExecute);
-            
+
             var result = methodToExecute.GetType().GetProperty("Response").GetValue(methodToExecute);
 
             return (T)result;
@@ -292,6 +292,11 @@ namespace TLSharp.Core
             return result;
         }
 
+        public async Task SendPingAsync()
+        {
+            await _sender.SendPingAsync();
+        }
+
         private void OnUserAuthenticated(TLUser TLUser)
         {
             _session.TLUser = TLUser;