Added Telegram Backend skeleton

Duplicati.sln

@@ -105,6 +105,10 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Duplicati.Library.Backend.T
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Duplicati.Library.Backend.TencentCOS", "Duplicati\Library\Backend\TencentCOS\Duplicati.Library.Backend.TencentCOS.csproj", "{545DD6D4-9476-42D6-B51C-A28E000C489E}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Duplicati.Library.Backend.Telegram", "Duplicati\Library\Backend\Telegram\Duplicati.Library.Backend.Telegram.csproj", "{F61679A9-E5DE-468A-B5A4-05F92D0143D2}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TelegramTest", "TelegramTest\TelegramTest.csproj", "{F83A537E-895A-496B-AA5F-693E0F9BAE4B}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -315,6 +319,10 @@ Global
 		{545DD6D4-9476-42D6-B51C-A28E000C489E}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{545DD6D4-9476-42D6-B51C-A28E000C489E}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{545DD6D4-9476-42D6-B51C-A28E000C489E}.Release|Any CPU.Build.0 = Release|Any CPU
+		{F83A537E-895A-496B-AA5F-693E0F9BAE4B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{F83A537E-895A-496B-AA5F-693E0F9BAE4B}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{F83A537E-895A-496B-AA5F-693E0F9BAE4B}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{F83A537E-895A-496B-AA5F-693E0F9BAE4B}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

Duplicati/CommandLine/BackendTester/Duplicati.CommandLine.BackendTester.csproj

@@ -90,6 +90,10 @@
       <Project>{ae035e01-c917-4f13-a35e-78f21c1a2f17}</Project>
       <Name>Duplicati.Library.Backend.Tardigrade</Name>
     </ProjectReference>
+    <ProjectReference Include="..\..\Library\Backend\Telegram\Duplicati.Library.Backend.Telegram.csproj">
+      <Project>{f61679a9-e5de-468a-b5a4-05f92d0143d2}</Project>
+      <Name>Duplicati.Library.Backend.Telegram</Name>
+    </ProjectReference>
     <ProjectReference Include="..\..\Library\Backend\TencentCOS\Duplicati.Library.Backend.TencentCOS.csproj">
       <Project>{545dd6d4-9476-42d6-b51c-a28e000c489e}</Project>
       <Name>Duplicati.Library.Backend.TencentCOS</Name>

Duplicati/CommandLine/BackendTool/Duplicati.CommandLine.BackendTool.csproj

@@ -96,6 +96,10 @@
       <Project>{ae035e01-c917-4f13-a35e-78f21c1a2f17}</Project>
       <Name>Duplicati.Library.Backend.Tardigrade</Name>
     </ProjectReference>
+    <ProjectReference Include="..\..\Library\Backend\Telegram\Duplicati.Library.Backend.Telegram.csproj">
+      <Project>{f61679a9-e5de-468a-b5a4-05f92d0143d2}</Project>
+      <Name>Duplicati.Library.Backend.Telegram</Name>
+    </ProjectReference>
     <ProjectReference Include="..\..\Library\Backend\TencentCOS\Duplicati.Library.Backend.TencentCOS.csproj">
       <Project>{545dd6d4-9476-42d6-b51c-a28e000c489e}</Project>
       <Name>Duplicati.Library.Backend.TencentCOS</Name>

Duplicati/CommandLine/Duplicati.CommandLine.csproj

@@ -111,6 +111,10 @@
       <Project>{32a74526-3e5f-413a-8cb4-1efdad4c8b91}</Project>
       <Name>Duplicati.Library.Backend.Sia</Name>
     </ProjectReference>
+    <ProjectReference Include="..\Library\Backend\Telegram\Duplicati.Library.Backend.Telegram.csproj">
+      <Project>{f61679a9-e5de-468a-b5a4-05f92d0143d2}</Project>
+      <Name>Duplicati.Library.Backend.Telegram</Name>
+    </ProjectReference>
     <ProjectReference Include="..\Library\Compression\Duplicati.Library.Compression.csproj">
       <Project>{19ECCE09-B5EB-406C-8C57-BAC66997D469}</Project>
       <Name>Duplicati.Library.Compression</Name>

Duplicati/CommandLine/RecoveryTool/Duplicati.CommandLine.RecoveryTool.csproj

@@ -134,6 +134,10 @@
       <Project>{C0270709-2A40-43B5-8CF1-69581B9FA2A1}</Project>
       <Name>Duplicati.Library.Backend.TahoeLAFS</Name>
     </ProjectReference>
+    <ProjectReference Include="..\..\Library\Backend\Telegram\Duplicati.Library.Backend.Telegram.csproj">
+      <Project>{f61679a9-e5de-468a-b5a4-05f92d0143d2}</Project>
+      <Name>Duplicati.Library.Backend.Telegram</Name>
+    </ProjectReference>
     <ProjectReference Include="..\..\Library\Backend\WEBDAV\Duplicati.Library.Backend.WEBDAV.csproj">
       <Project>{BAE27510-8B5D-44B2-B33E-372A98908041}</Project>
       <Name>Duplicati.Library.Backend.WEBDAV</Name>

Duplicati/GUI/Duplicati.GUI.TrayIcon/Duplicati.GUI.TrayIcon.csproj

@@ -221,6 +221,10 @@
       <Project>{ae035e01-c917-4f13-a35e-78f21c1a2f17}</Project>
       <Name>Duplicati.Library.Backend.Tardigrade</Name>
     </ProjectReference>
+    <ProjectReference Include="..\..\Library\Backend\Telegram\Duplicati.Library.Backend.Telegram.csproj">
+      <Project>{f61679a9-e5de-468a-b5a4-05f92d0143d2}</Project>
+      <Name>Duplicati.Library.Backend.Telegram</Name>
+    </ProjectReference>
     <ProjectReference Include="..\..\Library\Backend\TencentCOS\Duplicati.Library.Backend.TencentCOS.csproj">
       <Project>{545dd6d4-9476-42d6-b51c-a28e000c489e}</Project>
       <Name>Duplicati.Library.Backend.TencentCOS</Name>

Duplicati/Library/Backend/S3/S3Backend.cs

@@ -114,6 +114,7 @@ namespace Duplicati.Library.Backend
 
         static S3()
         {
+            Console.WriteLine("STATIC CONSTRUCTOR!!");
             var ns = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase) {
                 { "(default)", "" },
                 { "Standard", "STANDARD" },
@@ -166,10 +167,15 @@ namespace Duplicati.Library.Backend
 
         public S3()
         {
+            Console.WriteLine("Empty constructor!!");
+            Console.WriteLine(this.GetHashCode());
         }
 
         public S3(string url, Dictionary<string, string> options)
         {
+            Console.WriteLine($"Parameterized constructor with url {url} and options count = {options.Count}");
+            Console.WriteLine(this.GetHashCode());
+            options.Add(new Random().Next().ToString(), "0");
             var uri = new Utility.Uri(url);
             uri.RequireHost();
 
@@ -419,6 +425,8 @@ namespace Duplicati.Library.Backend
 
         public void Test()
         {
+            Console.WriteLine("TEST");
+            Console.WriteLine(this.GetHashCode());
             this.TestList();
         }
 
@@ -443,6 +451,7 @@ namespace Duplicati.Library.Backend
 
         public void Dispose()
         {
+            Console.WriteLine("Disposed!!!!");
             s3Client?.Dispose();
             s3Client = null;
         }

Duplicati/Library/Backend/Telegram/Duplicati.Library.Backend.Telegram.csproj

@@ -0,0 +1,96 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="15.0">
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{F61679A9-E5DE-468A-B5A4-05F92D0143D2}</ProjectGuid>
+    <OutputType>Library</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>Duplicati.Library.Backend</RootNamespace>
+    <AssemblyName>Duplicati.Library.Backend.FTP</AssemblyName>
+    <AssemblyOriginatorKeyFile>Duplicati.snk</AssemblyOriginatorKeyFile>
+    <FileUpgradeFlags>
+    </FileUpgradeFlags>
+    <OldToolsVersion>3.5</OldToolsVersion>
+    <TargetFrameworkVersion>v4.7.1</TargetFrameworkVersion>
+    <TargetFrameworkProfile />
+    <UpgradeBackupLocation>
+    </UpgradeBackupLocation>
+    <UseMSBuildEngine>false</UseMSBuildEngine>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="Newtonsoft.Json, Version=11.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed">
+      <HintPath>..\..\..\..\packages\Newtonsoft.Json.11.0.2\lib\net45\Newtonsoft.Json.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Net.Http" />
+    <Reference Include="TeleSharp.TL, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null">
+      <HintPath>..\..\..\..\packages\TLSharp.0.1.0.555\lib\net46\TeleSharp.TL.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="TLSharp.Core, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null">
+      <HintPath>..\..\..\..\packages\TLSharp.0.1.0.555\lib\net46\TLSharp.Core.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="InMemorySessionStore.cs" />
+    <Compile Include="TelegramBackend.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="Strings.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\..\Modules\Builtin\Duplicati.Library.Modules.Builtin.csproj">
+      <Project>{52826615-7964-47FE-B4B3-1B2DBDF605B9}</Project>
+      <Name>Duplicati.Library.Modules.Builtin</Name>
+    </ProjectReference>
+    <ProjectReference Include="..\..\Utility\Duplicati.Library.Utility.csproj">
+      <Project>{DE3E5D4C-51AB-4E5E-BEE8-E636CEBFBA65}</Project>
+      <Name>Duplicati.Library.Utility</Name>
+    </ProjectReference>
+    <ProjectReference Include="..\..\Interface\Duplicati.Library.Interface.csproj">
+      <Project>{C5899F45-B0FF-483C-9D38-24A9FCAAB237}</Project>
+      <Name>Duplicati.Library.Interface</Name>
+    </ProjectReference>
+    <ProjectReference Include="..\..\Localization\Duplicati.Library.Localization.csproj">
+      <Project>{B68F2214-951F-4F78-8488-66E1ED3F50BF}</Project>
+      <Name>Duplicati.Library.Localization</Name>
+    </ProjectReference>
+    <ProjectReference Include="..\..\Common\Duplicati.Library.Common.csproj">
+      <Project>{D63E53E4-A458-4C2F-914D-92F715F58ACF}</Project>
+      <Name>Duplicati.Library.Common</Name>
+    </ProjectReference>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="app.config" />
+    <None Include="Duplicati.snk" />
+    <None Include="packages.config" />
+  </ItemGroup>
+  <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+       Other similar extension points exist, see Microsoft.Common.targets.
+  <Target Name="BeforeBuild">
+  </Target>
+  <Target Name="AfterBuild">
+  </Target>
+  -->
+</Project>

Duplicati/Library/Backend/Telegram/InMemorySessionStore.cs

@@ -0,0 +1,41 @@
+using System.Collections.Concurrent;
+using TLSharp.Core;
+
+namespace Duplicati.Library.Backend
+{
+    public class InMemorySessionStore : ISessionStore
+    {
+        private readonly ConcurrentDictionary<string, byte[]> m_userIdSessionBytesMap = new ConcurrentDictionary<string, byte[]>();
+        private readonly ConcurrentDictionary<string, string> m_userIdPhoneCodeHashMap = new ConcurrentDictionary<string, string>();
+
+        public void Save(Session session)
+        {
+            m_userIdSessionBytesMap[session.SessionUserId] = session.ToBytes();
+        }
+
+        public Session Load(string sessionUserId)
+        {
+            if (m_userIdSessionBytesMap.TryGetValue(sessionUserId, out var sessionBytes))
+            {
+                return Session.FromBytes(sessionBytes, this, sessionUserId);
+            }
+
+            return null;
+        }
+
+        public void SetPhoneHash(string sessionUserId, string phoneCodeHash)
+        {
+            m_userIdPhoneCodeHashMap[sessionUserId] = phoneCodeHash;
+        }
+
+        public string GetPhoneHash(string sessionUserId)
+        {
+            if (m_userIdPhoneCodeHashMap.TryGetValue(sessionUserId, out var result))
+            {
+                return result;
+            }
+
+            return null;
+        }
+    }
+}

Duplicati/Library/Backend/Telegram/Properties/AssemblyInfo.cs

@@ -0,0 +1,54 @@
+#region Disclaimer / License
+// Copyright (C) 2015, The Duplicati Team
+// http://www.duplicati.com, info@duplicati.com
+// 
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+// 
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+// 
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+// 
+#endregion
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following 
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("FTP")]
+[assembly: AssemblyDescription("A FTP backend for Duplicati")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("Duplicati Team")]
+[assembly: AssemblyProduct("Duplicati.Backend.FTP")]
+[assembly: AssemblyCopyright("LGPL, Copyright © Duplicati Team 2015")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible 
+// to COM components.  If you need to access a type in this assembly from 
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("afa68988-4d82-490e-8044-acbc7d52ef4f")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version 
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Revision and Build Numbers 
+// by using the '*' as shown below:
+[assembly: AssemblyVersion("2.0.0.7")]
+[assembly: AssemblyFileVersion("2.0.0.7")]

Duplicati/Library/Backend/Telegram/Strings.cs

@@ -0,0 +1,17 @@
+using System;
+using Duplicati.Library.Localization.Short;
+using System.Collections.Generic;
+
+namespace Duplicati.Library.Backend.Strings {
+    internal static class TelegramBackend {
+        public static string Description { get { return LC.L(@"This backend can read and write data to a Telegram backend."); } }
+        public static string DisplayName { get { return LC.L(@"Telegram"); } }
+        public static string ListVerifyFailure(string filename, IEnumerable<string> files) { return LC.L(@"The file {0} was uploaded but not found afterwards, the file listing returned {1}", filename, string.Join(Environment.NewLine, files)); }
+        public static string ListVerifySizeFailure(string filename, long actualsize, long expectedsize) { return LC.L(@"The file {0} was uploaded but the returned size was {1} and it was expected to be {2}", filename, actualsize, expectedsize); }
+        public static string DescriptionDisableUploadVerifyShort { get { return LC.L(@"Disable upload verification"); } }
+        public static string DescriptionDisableUploadVerifyLong { get { return LC.L(@"To protect against network failures, every upload will be attempted verified. Use this option to disable this verification to make the upload faster but less reliable."); } }
+        public static string NoApiIdError { get { return LC.L(@"The API ID is missing."); } }
+        public static string NoApiHashError { get { return LC.L(@"The API hash is missing."); } }
+        public static string NoPhoneNumberError { get { return LC.L(@"The phone number is missing."); } }
+    }
+}

Duplicati/Library/Backend/Telegram/TelegramBackend.cs

@@ -0,0 +1,122 @@
+#region Disclaimer / License
+// Copyright (C) 2015, The Duplicati Team
+// http://www.duplicati.com, info@duplicati.com
+// 
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+// 
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+// 
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+// 
+#endregion
+
+using Duplicati.Library.Interface;
+using System;
+using System.Collections.Generic;
+using System.Threading;
+using System.Threading.Tasks;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Serialization;
+using TLSharp.Core;
+
+namespace Duplicati.Library.Backend
+{
+    // ReSharper disable once UnusedMember.Global
+    // This class is instantiated dynamically in the BackendLoader.
+    public class Telegram : IBackend
+    {
+        private static readonly InMemorySessionStore m_sessionStore = new InMemorySessionStore();
+        
+        private readonly int m_apiId;
+        private readonly string m_apiHash;
+        private readonly string m_phoneNumber;
+        
+        private string m_authCode;
+        private string m_password;
+
+        public Telegram()
+        {
+            Console.WriteLine("Welcome to Telegram parameterless");
+        }
+
+        // ReSharper disable once UnusedParameter.Local
+        // ToDo remove url if not needed
+        public Telegram(string url, Dictionary<string, string> options)
+        {
+            Console.WriteLine("Welcome to Telegram");
+            if (options.TryGetValue("api_id", out var apiId))
+                m_apiId = int.Parse(apiId);
+            
+            if (options.TryGetValue("api_hash", out var apiHash))
+                m_apiHash = apiHash;
+            
+            if (options.TryGetValue("phone_number", out var phoneNumber))
+                m_phoneNumber = phoneNumber;
+
+            if (options.TryGetValue("auth_code", out var authCode))
+                m_authCode = authCode;
+            
+            if (options.TryGetValue("password", out var password))
+                m_password = password;
+
+            if (m_apiId == 0)
+                throw new UserInformationException(Strings.TelegramBackend.NoApiIdError, "NoApiIdError");
+            
+            if (string.IsNullOrEmpty(m_apiHash))
+                throw new UserInformationException(Strings.TelegramBackend.NoApiHashError, "NoApiHashError");
+
+            if (string.IsNullOrEmpty(m_phoneNumber))
+                throw new UserInformationException(Strings.TelegramBackend.NoPhoneNumberError, "NoPhoneNumberError");
+        }
+
+        public void Dispose()
+        { }
+
+        public string DisplayName { get; } = "Telegram";
+        public string ProtocolKey { get; } = "https";
+        
+        public IEnumerable<IFileEntry> List()
+        {
+            throw new NotImplementedException();
+        }
+
+        public Task PutAsync(string remotename, string filename, CancellationToken cancelToken)
+        {
+            throw new NotImplementedException();
+        }
+
+        public void Get(string remotename, string filename)
+        {
+            throw new NotImplementedException();
+        }
+
+        public void Delete(string remotename)
+        {
+            throw new NotImplementedException();
+        }
+
+        public IList<ICommandLineArgument> SupportedCommands { get; }
+
+        public string Description { get; } = Strings.TelegramBackend.Description;
+        
+        public string[] DNSName { get; }
+        
+        public void Test()
+        {
+            throw new NotImplementedException();
+        }
+
+        public void CreateFolder()
+        {
+            throw new NotImplementedException();
+        }
+    }
+}

Duplicati/Library/Backend/Telegram/app.config

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+  <startup>
+    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.1"/>
+  </startup>
+</configuration>

Duplicati/Library/Backend/Telegram/packages.config

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="Newtonsoft.Json" version="11.0.2" targetFramework="net471" />
+  <package id="System.Net.Requests" version="4.3.0" targetFramework="net471" />
+  <package id="TLSharp" version="0.1.0.555" targetFramework="net471" />
+</packages>

Duplicati/Server/Duplicati.Server.csproj

@@ -207,6 +207,10 @@
       <Project>{ae035e01-c917-4f13-a35e-78f21c1a2f17}</Project>
       <Name>Duplicati.Library.Backend.Tardigrade</Name>
     </ProjectReference>
+    <ProjectReference Include="..\Library\Backend\Telegram\Duplicati.Library.Backend.Telegram.csproj">
+      <Project>{f61679a9-e5de-468a-b5a4-05f92d0143d2}</Project>
+      <Name>Duplicati.Library.Backend.Telegram</Name>
+    </ProjectReference>
     <ProjectReference Include="..\Library\Backend\TencentCOS\Duplicati.Library.Backend.TencentCOS.csproj">
       <Project>{545dd6d4-9476-42d6-b51c-a28e000c489e}</Project>
       <Name>Duplicati.Library.Backend.TencentCOS</Name>

TelegramTest/TelegramTest.csproj

@@ -0,0 +1,69 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+    <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+    <PropertyGroup>
+        <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+        <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+        <ProjectGuid>{F83A537E-895A-496B-AA5F-693E0F9BAE4B}</ProjectGuid>
+        <OutputType>Exe</OutputType>
+        <AppDesignerFolder>Properties</AppDesignerFolder>
+        <RootNamespace>TelegramTest</RootNamespace>
+        <AssemblyName>TelegramTest</AssemblyName>
+        <TargetFrameworkVersion>v4.7.2</TargetFrameworkVersion>
+        <FileAlignment>512</FileAlignment>
+    </PropertyGroup>
+    <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+        <PlatformTarget>AnyCPU</PlatformTarget>
+        <DebugSymbols>true</DebugSymbols>
+        <DebugType>full</DebugType>
+        <Optimize>false</Optimize>
+        <OutputPath>bin\Debug\</OutputPath>
+        <DefineConstants>DEBUG;TRACE</DefineConstants>
+        <ErrorReport>prompt</ErrorReport>
+        <WarningLevel>4</WarningLevel>
+    </PropertyGroup>
+    <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+        <PlatformTarget>AnyCPU</PlatformTarget>
+        <DebugType>pdbonly</DebugType>
+        <Optimize>true</Optimize>
+        <OutputPath>bin\Release\</OutputPath>
+        <DefineConstants>TRACE</DefineConstants>
+        <ErrorReport>prompt</ErrorReport>
+        <WarningLevel>4</WarningLevel>
+    </PropertyGroup>
+    <ItemGroup>
+        <Reference Include="Newtonsoft.Json, Version=11.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed">
+          <HintPath>..\packages\Newtonsoft.Json.11.0.2\lib\net45\Newtonsoft.Json.dll</HintPath>
+          <Private>True</Private>
+        </Reference>
+        <Reference Include="System" />
+        <Reference Include="System.Core" />
+        <Reference Include="System.Data" />
+        <Reference Include="System.Net.Http" />
+        <Reference Include="System.Xml" />
+        <Reference Include="TeleSharp.TL, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null">
+          <HintPath>..\packages\TLSharp.0.1.0.555\lib\net46\TeleSharp.TL.dll</HintPath>
+          <Private>True</Private>
+        </Reference>
+        <Reference Include="TLSharp.Core, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null">
+          <HintPath>..\packages\TLSharp.0.1.0.555\lib\net46\TLSharp.Core.dll</HintPath>
+          <Private>True</Private>
+        </Reference>
+    </ItemGroup>
+    <ItemGroup>
+        <Compile Include="Program.cs" />
+        <Compile Include="Properties\AssemblyInfo.cs" />
+    </ItemGroup>
+    <ItemGroup>
+      <None Include="packages.config" />
+    </ItemGroup>
+    <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+    <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+         Other similar extension points exist, see Microsoft.Common.targets.
+    <Target Name="BeforeBuild">
+    </Target>
+    <Target Name="AfterBuild">
+    </Target>
+    -->
+
+</Project>