TLSharp and Tests

TLSharp.Core/Network/MtProtoPlainSender.cs

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+using System;
+using System.IO;
+using System.Threading.Tasks;
+
+namespace TLSharp.Core.Network
+{
+	public class MtProtoPlainSender
+	{
+		private int sequence = 0;
+		private int timeOffset;
+		private long lastMessageId;
+		private Random random;
+		private TcpTransport _transport;
+
+		public MtProtoPlainSender(TcpTransport transport)
+		{
+			_transport = transport;
+			random = new Random();
+		}
+
+		public async Task Send(byte[] data)
+		{
+			using (var memoryStream = new MemoryStream())
+			{
+				using (var binaryWriter = new BinaryWriter(memoryStream))
+				{
+					binaryWriter.Write((long)0);
+					binaryWriter.Write(GetNewMessageId());
+					binaryWriter.Write(data.Length);
+					binaryWriter.Write(data);
+
+					byte[] packet = memoryStream.ToArray();
+
+					await _transport.Send(packet);
+				}
+			}
+		}
+
+		public async Task<byte[]> Recieve()
+		{
+			var result = await _transport.Receieve();
+
+			using (var memoryStream = new MemoryStream(result.Body))
+			{
+				using (BinaryReader binaryReader = new BinaryReader(memoryStream))
+				{
+					long authKeyid = binaryReader.ReadInt64();
+					long messageId = binaryReader.ReadInt64();
+					int messageLength = binaryReader.ReadInt32();
+
+					byte[] response = binaryReader.ReadBytes(messageLength);
+
+					return response;
+				}
+			}
+		}
+
+		private long GetNewMessageId()
+		{
+			long time = Convert.ToInt64((DateTime.UtcNow - new DateTime(1970, 1, 1)).TotalMilliseconds);
+			long newMessageId = ((time / 1000 + timeOffset) << 32) |
+								((time % 1000) << 22) |
+								(random.Next(524288) << 2); // 2^19
+															// [ unix timestamp : 32 bit] [ milliseconds : 10 bit ] [ buffer space : 1 bit ] [ random : 19 bit ] [ msg_id type : 2 bit ] = [ msg_id : 64 bit ]
+
+			if (lastMessageId >= newMessageId)
+			{
+				newMessageId = lastMessageId + 4;
+			}
+
+			lastMessageId = newMessageId;
+			return newMessageId;
+		}
+
+
+	}
+}