tdlight/example/csharp/TdExample.cs

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//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2020
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
using Td = Telegram.Td;
using TdApi = Telegram.Td.Api;
using System;
using System.Threading;
namespace TdExample
{
/// <summary>
/// Example class for TDLib usage from C#.
/// </summary>
class Example
{
private static Td.Client _client = null;
private readonly static Td.ClientResultHandler _defaultHandler = new DefaultHandler();
private static TdApi.AuthorizationState _authorizationState = null;
private static volatile bool _haveAuthorization = false;
private static volatile bool _needQuit = false;
private static volatile bool _canQuit = false;
private static volatile AutoResetEvent _gotAuthorization = new AutoResetEvent(false);
private static readonly string _newLine = Environment.NewLine;
private static readonly string _commandsLine = "Enter command (gc <chatId> - GetChat, me - GetMe, sm <chatId> <message> - SendMessage, lo - LogOut, r - Restart, q - Quit): ";
private static volatile string _currentPrompt = null;
private static Td.Client CreateTdClient()
{
Td.Client result = Td.Client.Create(new UpdateHandler());
new Thread(() =>
{
Thread.CurrentThread.IsBackground = true;
result.Run();
}).Start();
return result;
}
private static void Print(string str)
{
if (_currentPrompt != null)
{
Console.WriteLine();
}
Console.WriteLine(str);
if (_currentPrompt != null)
{
Console.Write(_currentPrompt);
}
}
private static string ReadLine(string str)
{
Console.Write(str);
_currentPrompt = str;
var result = Console.ReadLine();
_currentPrompt = null;
return result;
}
private static void OnAuthorizationStateUpdated(TdApi.AuthorizationState authorizationState)
{
if (authorizationState != null)
{
_authorizationState = authorizationState;
}
if (_authorizationState is TdApi.AuthorizationStateWaitTdlibParameters)
{
TdApi.TdlibParameters parameters = new TdApi.TdlibParameters();
parameters.DatabaseDirectory = "tdlib";
parameters.UseMessageDatabase = true;
parameters.UseSecretChats = true;
parameters.ApiId = 94575;
parameters.ApiHash = "a3406de8d171bb422bb6ddf3bbd800e2";
parameters.SystemLanguageCode = "en";
parameters.DeviceModel = "Desktop";
parameters.ApplicationVersion = "1.0";
parameters.EnableStorageOptimizer = true;
_client.Send(new TdApi.SetTdlibParameters(parameters), new AuthorizationRequestHandler());
}
else if (_authorizationState is TdApi.AuthorizationStateWaitEncryptionKey)
{
_client.Send(new TdApi.CheckDatabaseEncryptionKey(), new AuthorizationRequestHandler());
}
else if (_authorizationState is TdApi.AuthorizationStateWaitPhoneNumber)
{
string phoneNumber = ReadLine("Please enter phone number: ");
_client.Send(new TdApi.SetAuthenticationPhoneNumber(phoneNumber, null), new AuthorizationRequestHandler());
}
else if (_authorizationState is TdApi.AuthorizationStateWaitOtherDeviceConfirmation state)
{
Console.WriteLine("Please confirm this login link on another device: " + state.Link);
}
else if (_authorizationState is TdApi.AuthorizationStateWaitCode)
{
string code = ReadLine("Please enter authentication code: ");
_client.Send(new TdApi.CheckAuthenticationCode(code), new AuthorizationRequestHandler());
}
else if (_authorizationState is TdApi.AuthorizationStateWaitRegistration)
{
string firstName = ReadLine("Please enter your first name: ");
string lastName = ReadLine("Please enter your last name: ");
_client.Send(new TdApi.RegisterUser(firstName, lastName), new AuthorizationRequestHandler());
}
else if (_authorizationState is TdApi.AuthorizationStateWaitPassword)
{
string password = ReadLine("Please enter password: ");
_client.Send(new TdApi.CheckAuthenticationPassword(password), new AuthorizationRequestHandler());
}
else if (_authorizationState is TdApi.AuthorizationStateReady)
{
_haveAuthorization = true;
_gotAuthorization.Set();
}
else if (_authorizationState is TdApi.AuthorizationStateLoggingOut)
{
_haveAuthorization = false;
Print("Logging out");
}
else if (_authorizationState is TdApi.AuthorizationStateClosing)
{
_haveAuthorization = false;
Print("Closing");
}
else if (_authorizationState is TdApi.AuthorizationStateClosed)
{
Print("Closed");
_client.Dispose(); // _client is closed and native resources can be disposed now
if (!_needQuit)
{
_client = CreateTdClient(); // recreate _client after previous has closed
} else {
_canQuit = true;
}
}
else
{
Print("Unsupported authorization state:" + _newLine + _authorizationState);
}
}
private static long GetChatId(string arg)
{
long chatId = 0;
try
{
chatId = Convert.ToInt64(arg);
}
catch (FormatException)
{
}
catch (OverflowException)
{
}
return chatId;
}
private static void GetCommand()
{
string command = ReadLine(_commandsLine);
string[] commands = command.Split(new char[] { ' ' }, 2);
try
{
switch (commands[0])
{
case "gc":
_client.Send(new TdApi.GetChat(GetChatId(commands[1])), _defaultHandler);
break;
case "me":
_client.Send(new TdApi.GetMe(), _defaultHandler);
break;
case "sm":
string[] args = commands[1].Split(new char[] { ' ' }, 2);
sendMessage(GetChatId(args[0]), args[1]);
break;
case "lo":
_haveAuthorization = false;
_client.Send(new TdApi.LogOut(), _defaultHandler);
break;
case "r":
_haveAuthorization = false;
_client.Send(new TdApi.Close(), _defaultHandler);
break;
case "q":
_needQuit = true;
_haveAuthorization = false;
_client.Send(new TdApi.Close(), _defaultHandler);
break;
default:
Print("Unsupported command: " + command);
break;
}
}
catch (IndexOutOfRangeException)
{
Print("Not enough arguments");
}
}
private static void sendMessage(long chatId, string message)
{
// initialize reply markup just for testing
TdApi.InlineKeyboardButton[] row = { new TdApi.InlineKeyboardButton("https://telegram.org?1", new TdApi.InlineKeyboardButtonTypeUrl()), new TdApi.InlineKeyboardButton("https://telegram.org?2", new TdApi.InlineKeyboardButtonTypeUrl()), new TdApi.InlineKeyboardButton("https://telegram.org?3", new TdApi.InlineKeyboardButtonTypeUrl()) };
TdApi.ReplyMarkup replyMarkup = new TdApi.ReplyMarkupInlineKeyboard(new TdApi.InlineKeyboardButton[][] { row, row, row });
TdApi.InputMessageContent content = new TdApi.InputMessageText(new TdApi.FormattedText(message, null), false, true);
_client.Send(new TdApi.SendMessage(chatId, 0, 0, null, replyMarkup, content), _defaultHandler);
}
static void Main()
{
// disable TDLib log
Td.Client.Execute(new TdApi.SetLogVerbosityLevel(0));
if (Td.Client.Execute(new TdApi.SetLogStream(new TdApi.LogStreamFile("tdlib.log", 1 << 27, false))) is TdApi.Error)
{
throw new System.IO.IOException("Write access to the current directory is required");
}
// create Td.Client
_client = CreateTdClient();
// test Client.Execute
_defaultHandler.OnResult(Td.Client.Execute(new TdApi.GetTextEntities("@telegram /test_command https://telegram.org telegram.me @gif @test")));
// main loop
while (!_needQuit)
{
// await authorization
_gotAuthorization.Reset();
_gotAuthorization.WaitOne();
_client.Send(new TdApi.GetChats(null, Int64.MaxValue, 0, 100), _defaultHandler); // preload main chat list
while (_haveAuthorization)
{
GetCommand();
}
}
while (!_canQuit) {
Thread.Sleep(1);
}
}
private class DefaultHandler : Td.ClientResultHandler
{
void Td.ClientResultHandler.OnResult(TdApi.BaseObject @object)
{
Print(@object.ToString());
}
}
private class UpdateHandler : Td.ClientResultHandler
{
void Td.ClientResultHandler.OnResult(TdApi.BaseObject @object)
{
if (@object is TdApi.UpdateAuthorizationState)
{
OnAuthorizationStateUpdated((@object as TdApi.UpdateAuthorizationState).AuthorizationState);
}
else
{
// Print("Unsupported update: " + @object);
}
}
}
private class AuthorizationRequestHandler : Td.ClientResultHandler
{
void Td.ClientResultHandler.OnResult(TdApi.BaseObject @object)
{
if (@object is TdApi.Error)
{
Print("Receive an error:" + _newLine + @object);
OnAuthorizationStateUpdated(null); // repeat last action
}
else
{
// result is already received through UpdateAuthorizationState, nothing to do
}
}
}
}
}