// // Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2018 // // 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) // #include <td/telegram/Client.h> #include <td/telegram/Log.h> #include <td/telegram/td_api.h> #include <td/telegram/td_api.hpp> #include <cstdint> #include <functional> #include <iostream> #include <limits> #include <map> #include <sstream> #include <string> #include <vector> // Simple single-threaded example of TDLib usage. // Real world programs should use separate thread for the user input. // overloaded namespace detail { template <class... Fs> struct overload; template <class F> struct overload<F> : public F { explicit overload(F f) : F(f) { } }; template <class F, class... Fs> struct overload<F, Fs...> : public overload<F> , overload<Fs...> { overload(F f, Fs... fs) : overload<F>(f), overload<Fs...>(fs...) { } using overload<F>::operator(); using overload<Fs...>::operator(); }; } // namespace detail template <class... F> auto overloaded(F... f) { return detail::overload<F...>(f...); } namespace td_api = td::td_api; class TdExample { public: TdExample() { td::Log::set_verbosity_level(1); client_ = std::make_unique<td::Client>(); } void loop() { while (true) { if (need_restart_) { restart(); } else if (!are_authorized_) { process_response(client_->receive(10)); } else { std::cerr << "Enter action [q] quit [u] check for updates and request results [c] show chats [m <id> <text>] " "send message [l] logout: " << std::endl; std::string line; std::getline(std::cin, line); std::istringstream ss(line); std::string action; if (!(ss >> action)) { continue; } if (action == "q") { return; } if (action == "u") { std::cerr << "Checking for updates..." << std::endl; while (true) { auto response = client_->receive(0); if (response.object) { process_response(std::move(response)); } else { break; } } } else if (action == "l") { std::cerr << "Logging out..." << std::endl; send_query(td_api::make_object<td_api::logOut>(), {}); } else if (action == "m") { std::int64_t chat_id; ss >> chat_id; ss.get(); std::string text; std::getline(ss, text); std::cerr << "Sending message to chat " << chat_id << "..." << std::endl; auto send_message = td_api::make_object<td_api::sendMessage>(); send_message->chat_id_ = chat_id; auto message_content = td_api::make_object<td_api::inputMessageText>(); message_content->text_ = td_api::make_object<td_api::formattedText>(); message_content->text_->text_ = std::move(text); send_message->input_message_content_ = std::move(message_content); send_query(std::move(send_message), {}); } else if (action == "c") { std::cerr << "Loading chat list..." << std::endl; send_query(td_api::make_object<td_api::getChats>(std::numeric_limits<std::int64_t>::max(), 0, 20), [this](Object object) { if (object->get_id() == td_api::error::ID) { return; } auto chats = td::move_tl_object_as<td_api::chats>(object); for (auto chat_id : chats->chat_ids_) { std::cerr << "[id:" << chat_id << "] [title:" << chat_title_[chat_id] << "]" << std::endl; } }); } } } } private: using Object = td_api::object_ptr<td_api::Object>; std::unique_ptr<td::Client> client_; td_api::object_ptr<td_api::AuthorizationState> authorization_state_; bool are_authorized_{false}; bool need_restart_{false}; std::uint64_t current_query_id_{0}; std::uint64_t authentication_query_id_{0}; std::map<std::uint64_t, std::function<void(Object)>> handlers_; std::map<std::int32_t, td_api::object_ptr<td_api::user>> users_; std::map<std::int64_t, std::string> chat_title_; void restart() { client_.reset(); *this = TdExample(); } void send_query(td_api::object_ptr<td_api::Function> f, std::function<void(Object)> handler) { auto query_id = next_query_id(); if (handler) { handlers_.emplace(query_id, std::move(handler)); } client_->send({query_id, std::move(f)}); } void process_response(td::Client::Response response) { if (!response.object) { return; } //std::cerr << response.id << " " << to_string(response.object) << std::endl; if (response.id == 0) { return process_update(std::move(response.object)); } auto it = handlers_.find(response.id); if (it != handlers_.end()) { it->second(std::move(response.object)); } } std::string get_user_name(std::int32_t user_id) { auto it = users_.find(user_id); if (it == users_.end()) { return "unknown user"; } return it->second->first_name_ + " " + it->second->last_name_; } void process_update(td_api::object_ptr<td_api::Object> update) { td_api::downcast_call( *update, overloaded( [this](td_api::updateAuthorizationState &update_authorization_state) { authorization_state_ = std::move(update_authorization_state.authorization_state_); on_authorization_state_update(); }, [this](td_api::updateNewChat &update_new_chat) { chat_title_[update_new_chat.chat_->id_] = update_new_chat.chat_->title_; }, [this](td_api::updateChatTitle &update_chat_title) { chat_title_[update_chat_title.chat_id_] = update_chat_title.title_; }, [this](td_api::updateUser &update_user) { auto user_id = update_user.user_->id_; users_[user_id] = std::move(update_user.user_); }, [this](td_api::updateNewMessage &update_new_message) { auto chat_id = update_new_message.message_->chat_id_; auto sender_user_name = get_user_name(update_new_message.message_->sender_user_id_); std::string text; if (update_new_message.message_->content_->get_id() == td_api::messageText::ID) { text = static_cast<td_api::messageText &>(*update_new_message.message_->content_).text_->text_; } std::cerr << "Got message: [chat_id:" << chat_id << "] [from:" << sender_user_name << "] [" << text << "]" << std::endl; }, [](auto &update) {})); } auto create_authentication_query_handler() { return [this, id = authentication_query_id_](Object object) { if (id == authentication_query_id_) { check_authentication_error(std::move(object)); } }; } void on_authorization_state_update() { authentication_query_id_++; td_api::downcast_call( *authorization_state_, overloaded( [this](td_api::authorizationStateReady &) { are_authorized_ = true; std::cerr << "Got authorization" << std::endl; }, [this](td_api::authorizationStateLoggingOut &) { are_authorized_ = false; std::cerr << "Logging out" << std::endl; }, [this](td_api::authorizationStateClosing &) { std::cerr << "Closing" << std::endl; }, [this](td_api::authorizationStateClosed &) { are_authorized_ = false; need_restart_ = true; std::cerr << "Terminated" << std::endl; }, [this](td_api::authorizationStateWaitCode &wait_code) { std::string first_name; std::string last_name; if (!wait_code.is_registered_) { std::cerr << "Enter your first name: "; std::cin >> first_name; std::cerr << "Enter your last name: "; std::cin >> last_name; } std::cerr << "Enter authentication code: "; std::string code; std::cin >> code; send_query(td_api::make_object<td_api::checkAuthenticationCode>(code, first_name, last_name), create_authentication_query_handler()); }, [this](td_api::authorizationStateWaitPassword &) { std::cerr << "Enter authentication password: "; std::string password; std::cin >> password; send_query(td_api::make_object<td_api::checkAuthenticationPassword>(password), create_authentication_query_handler()); }, [this](td_api::authorizationStateWaitPhoneNumber &) { std::cerr << "Enter phone number: "; std::string phone_number; std::cin >> phone_number; send_query(td_api::make_object<td_api::setAuthenticationPhoneNumber>( phone_number, false /*allow_flash_calls*/, false /*is_current_phone_number*/), create_authentication_query_handler()); }, [this](td_api::authorizationStateWaitEncryptionKey &) { std::cerr << "Enter encryption key or DESTROY: "; std::string key; std::getline(std::cin, key); if (key == "DESTROY") { send_query(td_api::make_object<td_api::destroy>(), create_authentication_query_handler()); } else { send_query(td_api::make_object<td_api::checkDatabaseEncryptionKey>(std::move(key)), create_authentication_query_handler()); } }, [this](td_api::authorizationStateWaitTdlibParameters &) { auto parameters = td_api::make_object<td_api::tdlibParameters>(); parameters->use_message_database_ = true; parameters->use_secret_chats_ = true; parameters->api_id_ = 94575; parameters->api_hash_ = "a3406de8d171bb422bb6ddf3bbd800e2"; parameters->system_language_code_ = "en"; parameters->device_model_ = "Desktop"; parameters->system_version_ = "Unknown"; parameters->application_version_ = "1.0"; parameters->enable_storage_optimizer_ = true; send_query(td_api::make_object<td_api::setTdlibParameters>(std::move(parameters)), create_authentication_query_handler()); })); } void check_authentication_error(Object object) { if (object->get_id() == td_api::error::ID) { auto error = td::move_tl_object_as<td_api::error>(object); std::cerr << "Error: " << to_string(error); on_authorization_state_update(); } } std::uint64_t next_query_id() { return ++current_query_id_; } }; int main() { TdExample example; example.loop(); }