// // Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2022 // // 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/CountryInfoManager.h" #include "td/telegram/Global.h" #include "td/telegram/LanguagePackManager.h" #include "td/telegram/misc.h" #include "td/telegram/Td.h" #include "td/telegram/telegram_api.h" #include "td/utils/algorithm.h" #include "td/utils/base64.h" #include "td/utils/buffer.h" #include "td/utils/Gzip.h" #include "td/utils/logging.h" #include "td/utils/misc.h" #include "td/utils/Random.h" #include "td/utils/Time.h" #include "td/utils/tl_parsers.h" namespace td { class GetNearestDcQuery final : public Td::ResultHandler { Promise<string> promise_; public: explicit GetNearestDcQuery(Promise<string> &&promise) : promise_(std::move(promise)) { } void send() { send_query(G()->net_query_creator().create_unauth(telegram_api::help_getNearestDc())); } void on_result(BufferSlice packet) final { auto result_ptr = fetch_result<telegram_api::help_getNearestDc>(packet); if (result_ptr.is_error()) { return on_error(result_ptr.move_as_error()); } auto result = result_ptr.move_as_ok(); promise_.set_value(std::move(result->country_)); } void on_error(Status status) final { if (!G()->is_expected_error(status) && status.message() != "BOT_METHOD_INVALID") { LOG(ERROR) << "GetNearestDc returned " << status; } promise_.set_error(std::move(status)); } }; class GetCountriesListQuery final : public Td::ResultHandler { Promise<tl_object_ptr<telegram_api::help_CountriesList>> promise_; public: explicit GetCountriesListQuery(Promise<tl_object_ptr<telegram_api::help_CountriesList>> &&promise) : promise_(std::move(promise)) { } void send(const string &language_code, int32 hash) { send_query(G()->net_query_creator().create_unauth(telegram_api::help_getCountriesList(language_code, hash))); } void on_result(BufferSlice packet) final { // LOG(ERROR) << base64url_encode(gzencode(packet, 0.9)); auto result_ptr = fetch_result<telegram_api::help_getCountriesList>(packet); if (result_ptr.is_error()) { return on_error(result_ptr.move_as_error()); } promise_.set_value(result_ptr.move_as_ok()); } void on_error(Status status) final { if (!G()->is_expected_error(status)) { LOG(ERROR) << "GetCountriesList returned " << status; } promise_.set_error(std::move(status)); } }; struct CountryInfoManager::CallingCodeInfo { string calling_code; vector<string> prefixes; vector<string> patterns; }; struct CountryInfoManager::CountryInfo { string country_code; string default_name; string name; vector<CallingCodeInfo> calling_codes; bool is_hidden = false; td_api::object_ptr<td_api::countryInfo> get_country_info_object() const { return td_api::make_object<td_api::countryInfo>( country_code, name.empty() ? default_name : name, default_name, is_hidden, transform(calling_codes, [](const CallingCodeInfo &info) { return info.calling_code; })); } }; struct CountryInfoManager::CountryList { vector<CountryInfo> countries; int32 hash = 0; double next_reload_time = 0.0; td_api::object_ptr<td_api::countries> get_countries_object() const { return td_api::make_object<td_api::countries>( transform(countries, [](const CountryInfo &info) { return info.get_country_info_object(); })); } }; CountryInfoManager::CountryInfoManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) { } CountryInfoManager::~CountryInfoManager() = default; void CountryInfoManager::start_up() { std::lock_guard<std::mutex> country_lock(country_mutex_); manager_count_++; } void CountryInfoManager::tear_down() { parent_.reset(); std::lock_guard<std::mutex> country_lock(country_mutex_); manager_count_--; if (manager_count_ == 0 && !countries_.empty()) { LOG(INFO) << "Clear country info"; countries_.clear(); } } string CountryInfoManager::get_main_language_code() { return to_lower(td_->language_pack_manager_.get_actor_unsafe()->get_main_language_code()); } void CountryInfoManager::get_countries(Promise<td_api::object_ptr<td_api::countries>> &&promise) { do_get_countries(get_main_language_code(), false, std::move(promise)); } void CountryInfoManager::do_get_countries(string language_code, bool is_recursive, Promise<td_api::object_ptr<td_api::countries>> &&promise) { if (is_recursive) { auto main_language_code = get_main_language_code(); if (language_code != main_language_code) { language_code = std::move(main_language_code); is_recursive = false; } } { std::lock_guard<std::mutex> country_lock(country_mutex_); auto list = get_country_list(this, language_code); if (list != nullptr) { return promise.set_value(list->get_countries_object()); } } if (is_recursive) { return promise.set_error(Status::Error(500, "Requested data is inaccessible")); } if (language_code.empty()) { return promise.set_error(Status::Error(400, "Invalid language code specified")); } load_country_list(language_code, 0, PromiseCreator::lambda([actor_id = actor_id(this), language_code, promise = std::move(promise)](Result<Unit> &&result) mutable { if (result.is_error()) { return promise.set_error(result.move_as_error()); } send_closure(actor_id, &CountryInfoManager::do_get_countries, std::move(language_code), true, std::move(promise)); })); } void CountryInfoManager::get_phone_number_info(string phone_number_prefix, Promise<td_api::object_ptr<td_api::phoneNumberInfo>> &&promise) { clean_phone_number(phone_number_prefix); if (phone_number_prefix.empty()) { return promise.set_value(td_api::make_object<td_api::phoneNumberInfo>(nullptr, string(), string())); } do_get_phone_number_info(std::move(phone_number_prefix), get_main_language_code(), false, std::move(promise)); } void CountryInfoManager::do_get_phone_number_info(string phone_number_prefix, string language_code, bool is_recursive, Promise<td_api::object_ptr<td_api::phoneNumberInfo>> &&promise) { if (is_recursive) { auto main_language_code = get_main_language_code(); if (language_code != main_language_code) { language_code = std::move(main_language_code); is_recursive = false; } } { std::lock_guard<std::mutex> country_lock(country_mutex_); auto list = get_country_list(this, language_code); if (list != nullptr) { return promise.set_value(get_phone_number_info_object(list, phone_number_prefix)); } } if (is_recursive) { return promise.set_error(Status::Error(500, "Requested data is inaccessible")); } if (language_code.empty()) { return promise.set_error(Status::Error(400, "Invalid language code specified")); } load_country_list(language_code, 0, PromiseCreator::lambda([actor_id = actor_id(this), phone_number_prefix, language_code, promise = std::move(promise)](Result<Unit> &&result) mutable { if (result.is_error()) { return promise.set_error(result.move_as_error()); } send_closure(actor_id, &CountryInfoManager::do_get_phone_number_info, std::move(phone_number_prefix), std::move(language_code), true, std::move(promise)); })); } td_api::object_ptr<td_api::phoneNumberInfo> CountryInfoManager::get_phone_number_info_sync(const string &language_code, string phone_number_prefix) { clean_phone_number(phone_number_prefix); if (phone_number_prefix.empty()) { return td_api::make_object<td_api::phoneNumberInfo>(nullptr, string(), string()); } std::lock_guard<std::mutex> country_lock(country_mutex_); auto list = get_country_list(nullptr, language_code); if (list == nullptr) { list = get_country_list(nullptr, "en"); } return get_phone_number_info_object(list, phone_number_prefix); } td_api::object_ptr<td_api::phoneNumberInfo> CountryInfoManager::get_phone_number_info_object(const CountryList *list, Slice phone_number) { CHECK(list != nullptr); const CountryInfo *best_country = nullptr; const CallingCodeInfo *best_calling_code = nullptr; size_t best_length = 0; bool is_prefix = false; // is phone number a prefix of a valid country_code + prefix for (auto &country : list->countries) { for (auto &calling_code : country.calling_codes) { if (begins_with(phone_number, calling_code.calling_code)) { auto calling_code_size = calling_code.calling_code.size(); for (auto &prefix : calling_code.prefixes) { if (begins_with(prefix, phone_number.substr(calling_code_size))) { is_prefix = true; } if (calling_code_size + prefix.size() > best_length && begins_with(phone_number.substr(calling_code_size), prefix)) { best_country = &country; best_calling_code = &calling_code; best_length = calling_code_size + prefix.size(); } } } if (begins_with(calling_code.calling_code, phone_number)) { is_prefix = true; } } } if (best_country == nullptr) { return td_api::make_object<td_api::phoneNumberInfo>(nullptr, is_prefix ? phone_number.str() : string(), is_prefix ? string() : phone_number.str()); } Slice formatted_part = phone_number.substr(best_calling_code->calling_code.size()); string formatted_phone_number; size_t max_matched_digits = 0; for (auto &pattern : best_calling_code->patterns) { string result; size_t current_pattern_pos = 0; bool is_failed_match = false; size_t matched_digits = 0; for (auto &c : formatted_part) { while (current_pattern_pos < pattern.size() && pattern[current_pattern_pos] != 'X' && !is_digit(pattern[current_pattern_pos])) { result += pattern[current_pattern_pos++]; } if (current_pattern_pos == pattern.size()) { // result += ' '; } if (current_pattern_pos >= pattern.size() || pattern[current_pattern_pos] == 'X') { result += c; current_pattern_pos++; } else { CHECK(is_digit(pattern[current_pattern_pos])); if (c == pattern[current_pattern_pos]) { matched_digits++; result += c; current_pattern_pos++; } else { is_failed_match = true; break; } } } for (size_t i = current_pattern_pos; i < pattern.size(); i++) { if (is_digit(pattern[i])) { is_failed_match = true; } } if (!is_failed_match && matched_digits >= max_matched_digits) { max_matched_digits = matched_digits; while (current_pattern_pos < pattern.size()) { if (pattern[current_pattern_pos] == 'X') { result.push_back('-'); } else { CHECK(!is_digit(pattern[current_pattern_pos])); result.push_back(' '); } current_pattern_pos++; } formatted_phone_number = std::move(result); } } return td_api::make_object<td_api::phoneNumberInfo>( best_country->get_country_info_object(), best_calling_code->calling_code, formatted_phone_number.empty() ? formatted_part.str() : formatted_phone_number); } void CountryInfoManager::get_current_country_code(Promise<string> &&promise) { td_->create_handler<GetNearestDcQuery>(std::move(promise))->send(); } void CountryInfoManager::load_country_list(string language_code, int32 hash, Promise<Unit> &&promise) { auto &queries = pending_load_country_queries_[language_code]; if (!promise && !queries.empty()) { return; } queries.push_back(std::move(promise)); if (queries.size() == 1) { auto query_promise = PromiseCreator::lambda( [actor_id = actor_id(this), language_code](Result<tl_object_ptr<telegram_api::help_CountriesList>> &&result) { send_closure(actor_id, &CountryInfoManager::on_get_country_list, language_code, std::move(result)); }); td_->create_handler<GetCountriesListQuery>(std::move(query_promise))->send(language_code, hash); } } void CountryInfoManager::on_get_country_list(const string &language_code, Result<tl_object_ptr<telegram_api::help_CountriesList>> r_country_list) { auto query_it = pending_load_country_queries_.find(language_code); CHECK(query_it != pending_load_country_queries_.end()); auto promises = std::move(query_it->second); CHECK(!promises.empty()); pending_load_country_queries_.erase(query_it); if (r_country_list.is_error()) { { std::lock_guard<std::mutex> country_lock(country_mutex_); auto it = countries_.find(language_code); if (it != countries_.end()) { // don't try to reload countries more often than once in 1-2 minutes it->second->next_reload_time = max(Time::now() + Random::fast(60, 120), it->second->next_reload_time); // if we have data for the language, then we don't need to fail promises set_promises(promises); return; } } fail_promises(promises, r_country_list.move_as_error()); return; } { std::lock_guard<std::mutex> country_lock(country_mutex_); on_get_country_list_impl(language_code, r_country_list.move_as_ok()); } set_promises(promises); } void CountryInfoManager::on_get_country_list_impl(const string &language_code, tl_object_ptr<telegram_api::help_CountriesList> country_list) { CHECK(country_list != nullptr); LOG(DEBUG) << "Receive " << to_string(country_list); auto &countries = countries_[language_code]; switch (country_list->get_id()) { case telegram_api::help_countriesListNotModified::ID: if (countries == nullptr) { LOG(ERROR) << "Receive countriesListNotModified for unknown list with language code " << language_code; countries_.erase(language_code); } else { LOG(INFO) << "List of countries with language code " << language_code << " is not modified"; countries->next_reload_time = Time::now() + Random::fast(86400, 2 * 86400); } break; case telegram_api::help_countriesList::ID: { auto list = move_tl_object_as<telegram_api::help_countriesList>(country_list); if (countries == nullptr) { countries = make_unique<CountryList>(); } else { countries->countries.clear(); } for (auto &c : list->countries_) { CountryInfo info; info.country_code = std::move(c->iso2_); info.default_name = std::move(c->default_name_); info.name = std::move(c->name_); info.is_hidden = c->hidden_; for (auto &code : c->country_codes_) { auto r_calling_code = to_integer_safe<int32>(code->country_code_); if (r_calling_code.is_error() || r_calling_code.ok() <= 0) { LOG(ERROR) << "Receive invalid calling code " << code->country_code_ << " for country " << info.country_code; } else { CallingCodeInfo calling_code_info; calling_code_info.calling_code = std::move(code->country_code_); calling_code_info.prefixes = std::move(code->prefixes_); if (calling_code_info.prefixes.empty()) { calling_code_info.prefixes.resize(1); } calling_code_info.patterns = std::move(code->patterns_); info.calling_codes.push_back(std::move(calling_code_info)); } } if (info.calling_codes.empty()) { LOG(ERROR) << "Receive empty list of calling codes for " << info.country_code; continue; } countries->countries.push_back(std::move(info)); } countries->hash = list->hash_; countries->next_reload_time = Time::now() + Random::fast(86400, 2 * 86400); break; } default: UNREACHABLE(); } } const CountryInfoManager::CountryList *CountryInfoManager::get_country_list(CountryInfoManager *manager, const string &language_code) { auto it = countries_.find(language_code); if (it == countries_.end()) { if (language_code == "en") { static const BufferSlice en = gzdecode( base64url_decode( "eJyNW0tz48iRrhb1lrpn2h6PfXBMMGIjvN6IHQeJN458iyJBsQlSr1uRrCFrBAIaEJAs_QHf9ifsxQeHD77t_oK27_" "4Pvvmyl73sbROkSIBEstAR3S01VVmVlZX55ZdZpf8M__6HX_z1v3_9T0LIv_zHHz7DF7JXqpKjkjv2fJ9GP3sHn_" "3P33LlPfiak3Vt9dnx7W1-8WdDtka-Gbg8YON8yafDfG3GfRqwOfwsNZepF1efnS0mWvy9jeeqk7PSD5Mpdfk8oO62_" "J4pk4T8eoJYvkE-ltyAT0Ka_02-TP1hOKZpPfaLkmYk9DteKbKxryY5LrmTkDsORfYSzaFkztEGuzpD2A5iV1UV28ICWX_" "GUFldWX12Gssm1r0ih6C7B5qnZCVFEduwR05K_oSBGd0t2y1-riqJdWzyoTRjPh9RN2_TmZdeb7-oGdl26sNew3ngp_" "e6p8RnfrqS3djrAPSNZKnDkbPe04oJn1lIb9n5hhyU_HCIyOYkUxfrfU9OS6_MH1L-I3URfzcV4RmXS-SbsjeHIwZ3vWD-K5t4Twuzp-" "eSDV145uUyOY48no49LPbAXxUt6xzKVXJapu7EoWM2n6Z1MIyCWIcaOSozZ8LDWeocZGk93_ntCki2sKRcJ-fl0H8AE-" "TrdO5hdpAkbdOmyz_xHA2wQ-hMqM-37UiWcWfGYy9AXzr1KU9hDWCVvPrs5DY2VizbBNnQD90xT-" "uobp1VftNny5fkoAyR7aL7M8U2tiIb-zNAtvQZK0ox84w75GMZ1GY8X6V-OJ9Th84QPbR4__g8V6CH5_" "AnBJ9UsxjvYe32CdlP5Luy51Lus3_P29wN8jWIYBrwcA6BYNMhTZ-baibOrUcOyz595U463lV1_dn7FVykzs5enDud0TkWJ1KmDfuw_" "jQM0JjXVfH53YB_esH8meJxLmkZcX63iLHo6JC8IM4p5XvQmzn8lSH2LRTX4yolclgB_cab55CDr--KS51_" "G8koBTmnGnpONwo5Q1JzkqyB7xdyWkEB_" "5Fyum7kJPhekYswv5bTC2bOLMDnhhTFMeQiMycZZk5W5JysqTmlqMFYPacWzZyqGDmtKOc0BeYvqDmjoINsNMaAMfAX1lGLSk7VYaxRz" "BkgY-gwD6yjyfB9bMfzRJ7bOMdKlXyseJAo87-tstnv8j32-Lt_w85EkYV2rdTJNxXImJCD8qUflukwmgs9X1mMX5UGOX_" "T6U0dTB9JrM8FObOfeQCpyaHuOJ1TkzkRk2-SD5XP_xWw_Phfm08ehCmGU-pmnOXTcVZpRXvxHvLNeaTHdl5a-" 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"9vrBvm2HHXU5lPQzp9w0T2T9AU6NcnHgb09FXpnVcicCzDgmrMAcvZ2TOwZid93uh7AOOqGNEAwTI9j56ZOvrqhjsOjpFEPg9BN3_" "tpRvy27CZ6m7f49SksJhe1dfTZ3m2DfNdwIPqdvOUNucMgNQfAlXkA370AWs7S8kZindsWOWx5c-8J41TGzly-XPuafNt0A-" "a7i4IEVOiw4NmDxJjmqoYhJb6P-y53NXJwx2YM4-empu_ClMX6d1DP332fqucXP1Ok-E5RWdZG6zXvozpmwaeWL_" "MRPNqTdCLEhHuLHN7vepcV93Jx2RtyfM9nQzp8xrmwhr4Z-cf__p_7_0VkiUI") .ok()); TlBufferParser parser(&en); auto result = telegram_api::help_getCountriesList::fetch_result(parser); parser.fetch_end(); CHECK(parser.get_error() == nullptr); on_get_country_list_impl(language_code, std::move(result)); it = countries_.find(language_code); CHECK(it != countries_.end()) auto *country = it->second.get(); if (manager != nullptr) { manager->load_country_list(language_code, country->hash, Auto()); } return country; } return nullptr; } auto *country = it->second.get(); CHECK(country != nullptr); if (manager != nullptr && country->next_reload_time < Time::now()) { manager->load_country_list(language_code, country->hash, Auto()); } return country; } int32 CountryInfoManager::manager_count_ = 0; std::mutex CountryInfoManager::country_mutex_; FlatHashMap<string, unique_ptr<CountryInfoManager::CountryList>> CountryInfoManager::countries_; } // namespace td