tdlight/td/telegram/BotCommand.cpp

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//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2021
//
// 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/BotCommand.h"
#include "td/telegram/BotCommandScope.h"
#include "td/telegram/ContactsManager.h"
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#include "td/telegram/Global.h"
#include "td/telegram/misc.h"
#include "td/telegram/Td.h"
#include "td/utils/algorithm.h"
#include "td/utils/buffer.h"
#include "td/utils/logging.h"
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#include "td/utils/misc.h"
#include "td/utils/SliceBuilder.h"
#include "td/utils/Status.h"
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#include "td/utils/utf8.h"
namespace td {
class SetBotCommandsQuery : public Td::ResultHandler {
Promise<Unit> promise_;
public:
explicit SetBotCommandsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
}
void send(BotCommandScope scope, const string &language_code, vector<BotCommand> &&commands) {
send_query(G()->net_query_creator().create(telegram_api::bots_setBotCommands(
scope.get_input_bot_command_scope(td), language_code,
transform(commands, [](const BotCommand &command) { return command.get_input_bot_command(); }))));
}
void on_result(uint64 id, BufferSlice packet) override {
auto result_ptr = fetch_result<telegram_api::bots_setBotCommands>(packet);
if (result_ptr.is_error()) {
return on_error(id, result_ptr.move_as_error());
}
if (!result_ptr.ok()) {
LOG(ERROR) << "Set bot commands request failed";
}
promise_.set_value(Unit());
}
void on_error(uint64 id, Status status) override {
promise_.set_error(std::move(status));
}
};
class ResetBotCommandsQuery : public Td::ResultHandler {
Promise<Unit> promise_;
public:
explicit ResetBotCommandsQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
}
void send(BotCommandScope scope, const string &language_code) {
send_query(G()->net_query_creator().create(
telegram_api::bots_resetBotCommands(scope.get_input_bot_command_scope(td), language_code)));
}
void on_result(uint64 id, BufferSlice packet) override {
auto result_ptr = fetch_result<telegram_api::bots_resetBotCommands>(packet);
if (result_ptr.is_error()) {
return on_error(id, result_ptr.move_as_error());
}
promise_.set_value(Unit());
}
void on_error(uint64 id, Status status) override {
promise_.set_error(std::move(status));
}
};
class GetBotCommandsQuery : public Td::ResultHandler {
Promise<td_api::object_ptr<td_api::botCommands>> promise_;
public:
explicit GetBotCommandsQuery(Promise<td_api::object_ptr<td_api::botCommands>> &&promise)
: promise_(std::move(promise)) {
}
void send(BotCommandScope scope, const string &language_code) {
send_query(G()->net_query_creator().create(
telegram_api::bots_getBotCommands(scope.get_input_bot_command_scope(td), language_code)));
}
void on_result(uint64 id, BufferSlice packet) override {
auto result_ptr = fetch_result<telegram_api::bots_getBotCommands>(packet);
if (result_ptr.is_error()) {
return on_error(id, result_ptr.move_as_error());
}
BotCommands commands(td->contacts_manager_->get_my_id(), result_ptr.move_as_ok());
promise_.set_value(commands.get_bot_commands_object(td));
}
void on_error(uint64 id, Status status) override {
promise_.set_error(std::move(status));
}
};
BotCommand::BotCommand(telegram_api::object_ptr<telegram_api::botCommand> &&bot_command) {
CHECK(bot_command != nullptr);
command_ = std::move(bot_command->command_);
description_ = std::move(bot_command->description_);
}
td_api::object_ptr<td_api::botCommand> BotCommand::get_bot_command_object() const {
return td_api::make_object<td_api::botCommand>(command_, description_);
}
telegram_api::object_ptr<telegram_api::botCommand> BotCommand::get_input_bot_command() const {
return telegram_api::make_object<telegram_api::botCommand>(command_, description_);
}
bool operator==(const BotCommand &lhs, const BotCommand &rhs) {
return lhs.command_ == rhs.command_ && lhs.description_ == rhs.description_;
}
BotCommands::BotCommands(UserId bot_user_id, vector<telegram_api::object_ptr<telegram_api::botCommand>> &&bot_commands)
: bot_user_id_(bot_user_id) {
commands_ = transform(std::move(bot_commands), [](telegram_api::object_ptr<telegram_api::botCommand> &&bot_command) {
return BotCommand(std::move(bot_command));
});
}
td_api::object_ptr<td_api::botCommands> BotCommands::get_bot_commands_object(Td *td) const {
auto commands = transform(commands_, [](const auto &command) { return command.get_bot_command_object(); });
return td_api::make_object<td_api::botCommands>(
td->contacts_manager_->get_user_id_object(bot_user_id_, "get_bot_commands_object"), std::move(commands));
}
bool operator==(const BotCommands &lhs, const BotCommands &rhs) {
return lhs.bot_user_id_ == rhs.bot_user_id_ && lhs.commands_ == rhs.commands_;
}
static bool is_valid_language_code(const string &language_code) {
if (language_code.empty()) {
return true;
}
if (language_code.size() != 2) {
return false;
}
return 'a' <= language_code[0] && language_code[0] <= 'z' && 'a' <= language_code[1] && language_code[1] <= 'z';
}
void set_commands(Td *td, td_api::object_ptr<td_api::BotCommandScope> &&scope_ptr, string &&language_code,
vector<td_api::object_ptr<td_api::botCommand>> &&commands, Promise<Unit> &&promise) {
TRY_RESULT_PROMISE(promise, scope, BotCommandScope::get_bot_command_scope(td, std::move(scope_ptr)));
if (!is_valid_language_code(language_code)) {
return promise.set_error(Status::Error(400, "Invalid language code specified"));
}
vector<BotCommand> new_commands;
for (auto &command : commands) {
if (command == nullptr) {
return promise.set_error(Status::Error(400, "Command must be non-empty"));
}
if (!clean_input_string(command->command_)) {
return promise.set_error(Status::Error(400, "Command must be encoded in UTF-8"));
}
if (!clean_input_string(command->description_)) {
return promise.set_error(Status::Error(400, "Command description must be encoded in UTF-8"));
}
const size_t MAX_COMMAND_TEXT_LENGTH = 32;
command->command_ = trim(command->command_);
if (command->command_[0] == '/') {
command->command_ = command->command_.substr(1);
}
if (command->command_.empty()) {
return promise.set_error(Status::Error(400, "Command must be non-empty"));
}
if (utf8_length(command->command_) > MAX_COMMAND_TEXT_LENGTH) {
return promise.set_error(
Status::Error(400, PSLICE() << "Command length must not exceed " << MAX_COMMAND_TEXT_LENGTH));
}
const size_t MIN_COMMAND_DESCRIPTION_LENGTH = 3;
const size_t MAX_COMMAND_DESCRIPTION_LENGTH = 256;
command->description_ = trim(command->description_);
auto description_length = utf8_length(command->description_);
if (description_length < MIN_COMMAND_DESCRIPTION_LENGTH) {
return promise.set_error(Status::Error(
400, PSLICE() << "Command description length must be at least " << MIN_COMMAND_DESCRIPTION_LENGTH));
}
if (description_length > MAX_COMMAND_DESCRIPTION_LENGTH) {
return promise.set_error(Status::Error(
400, PSLICE() << "Command description length must not exceed " << MAX_COMMAND_DESCRIPTION_LENGTH));
}
new_commands.emplace_back(std::move(command->command_), std::move(command->description_));
}
td->create_handler<SetBotCommandsQuery>(std::move(promise))->send(scope, language_code, std::move(new_commands));
}
void delete_commands(Td *td, td_api::object_ptr<td_api::BotCommandScope> &&scope_ptr, string &&language_code,
Promise<Unit> &&promise) {
TRY_RESULT_PROMISE(promise, scope, BotCommandScope::get_bot_command_scope(td, std::move(scope_ptr)));
if (!is_valid_language_code(language_code)) {
return promise.set_error(Status::Error(400, "Invalid language code specified"));
}
td->create_handler<ResetBotCommandsQuery>(std::move(promise))->send(scope, language_code);
}
void get_commands(Td *td, td_api::object_ptr<td_api::BotCommandScope> &&scope_ptr, string &&language_code,
Promise<td_api::object_ptr<td_api::botCommands>> &&promise) {
TRY_RESULT_PROMISE(promise, scope, BotCommandScope::get_bot_command_scope(td, std::move(scope_ptr)));
if (!is_valid_language_code(language_code)) {
return promise.set_error(Status::Error(400, "Invalid language code specified"));
}
td->create_handler<GetBotCommandsQuery>(std::move(promise))->send(scope, language_code);
}
} // namespace td