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tdlight/td/telegram/LanguagePackManager.cpp

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//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2024
//
// 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/LanguagePackManager.h"
#include "td/telegram/Global.h"
#include "td/telegram/misc.h"
#include "td/telegram/net/NetQueryDispatcher.h"
#include "td/telegram/Td.h"
#include "td/telegram/telegram_api.h"
#include "td/db/DbKey.h"
#include "td/db/SqliteDb.h"
#include "td/db/SqliteKeyValue.h"
#include "td/utils/algorithm.h"
#include "td/utils/ExitGuard.h"
#include "td/utils/FlatHashSet.h"
#include "td/utils/logging.h"
#include "td/utils/misc.h"
#include "td/utils/SliceBuilder.h"
#include "td/utils/Status.h"
#include <atomic>
#include <limits>
#include <map>
#include <utility>
namespace td {
struct LanguagePackManager::PluralizedString {
string zero_value_;
string one_value_;
string two_value_;
string few_value_;
string many_value_;
string other_value_;
PluralizedString(string &&zero_value, string &&one_value, string &&two_value, string &&few_value, string &&many_value,
string &&other_value)
: zero_value_(std::move(zero_value))
, one_value_(std::move(one_value))
, two_value_(std::move(two_value))
, few_value_(std::move(few_value))
, many_value_(std::move(many_value))
, other_value_(std::move(other_value)) {
}
};
struct LanguagePackManager::Language {
std::mutex mutex_;
std::atomic<int32> version_{-1};
std::atomic<int32> key_count_{0};
std::string base_language_code_;
bool is_full_ = false;
bool was_loaded_full_ = false;
bool has_get_difference_query_ = false;
vector<Promise<Unit>> get_difference_queries_;
FlatHashMap<string, string> ordinary_strings_;
FlatHashMap<string, unique_ptr<PluralizedString>> pluralized_strings_;
FlatHashSet<string> deleted_strings_;
SqliteKeyValue kv_; // usages must be guarded by database_->mutex_
};
struct LanguagePackManager::LanguageInfo {
string name_;
string native_name_;
string base_language_code_;
string plural_code_;
bool is_official_ = false;
bool is_rtl_ = false;
bool is_beta_ = false;
bool is_from_database_ = false;
int32 total_string_count_ = 0; // TODO move to LanguagePack and calculate as max(total_string_count)
int32 translated_string_count_ = 0;
string translation_url_;
friend bool operator==(const LanguageInfo &lhs, const LanguageInfo &rhs) {
return lhs.name_ == rhs.name_ && lhs.native_name_ == rhs.native_name_ &&
lhs.base_language_code_ == rhs.base_language_code_ && lhs.plural_code_ == rhs.plural_code_ &&
lhs.is_official_ == rhs.is_official_ && lhs.is_rtl_ == rhs.is_rtl_ && lhs.is_beta_ == rhs.is_beta_ &&
lhs.total_string_count_ == rhs.total_string_count_ &&
lhs.translated_string_count_ == rhs.translated_string_count_ && lhs.translation_url_ == rhs.translation_url_;
}
};
struct LanguagePackManager::LanguagePack {
std::mutex mutex_;
SqliteKeyValue pack_kv_; // usages must be guarded by database_->mutex_
std::map<string, LanguageInfo> custom_language_pack_infos_; // sorted by language_code
vector<std::pair<string, LanguageInfo>> server_language_pack_infos_; // sorted by server
FlatHashMap<string, unique_ptr<LanguageInfo>> all_server_language_pack_infos_;
FlatHashMap<string, unique_ptr<Language>> languages_;
};
struct LanguagePackManager::LanguageDatabase {
std::mutex mutex_;
string path_;
SqliteDb database_;
FlatHashMap<string, unique_ptr<LanguagePack>> language_packs_;
};
LanguagePackManager::~LanguagePackManager() = default;
bool LanguagePackManager::check_language_pack_name(Slice name) {
for (auto c : name) {
if (c != '_' && !is_alpha(c)) {
return false;
}
}
return name.size() <= 64;
}
bool LanguagePackManager::check_language_code_name(Slice name) {
for (auto c : name) {
if (c != '-' && !is_alpha(c) && !is_digit(c)) {
return false;
}
}
return name.size() <= 64 && (is_custom_language_code(name) || name.empty() || name.size() >= 2);
}
bool LanguagePackManager::is_custom_language_code(Slice language_code) {
return !language_code.empty() && language_code[0] == 'X';
}
static Result<SqliteDb> open_database(const string &path) {
TRY_RESULT(database, SqliteDb::open_with_key(path, true, DbKey::empty()));
TRY_STATUS(database.exec("PRAGMA journal_mode=WAL"));
return std::move(database);
}
static int32 load_database_language_version(SqliteKeyValue *kv) {
CHECK(kv != nullptr);
if (kv->empty()) {
return -1;
}
string str_version = kv->get("!version");
if (str_version.empty()) {
return -1;
}
return to_integer<int32>(str_version);
}
static int32 load_database_language_key_count(SqliteKeyValue *kv) {
CHECK(kv != nullptr);
if (kv->empty()) {
return 0;
}
string str_key_count = kv->get("!key_count");
if (str_key_count.empty()) {
// calculate key count once for the database and cache it
int key_count = 0;
for (auto &str : kv->get_all()) {
key_count += str.first[0] != '!' && (str.second[0] == '1' || str.second[0] == '2');
}
LOG(INFO) << "Set language pack key count in database to " << key_count;
kv->set("!key_count", to_string(key_count));
return key_count;
}
return to_integer<int32>(str_key_count);
}
static string load_database_language_base_language_code(SqliteKeyValue *kv) {
CHECK(kv != nullptr);
if (kv->empty()) {
return string();
}
return kv->get("!base_language_code");
}
LanguagePackManager::LanguageDatabase *LanguagePackManager::add_language_database(string path) {
auto it = language_databases_.find(path);
if (it != language_databases_.end()) {
return it->second.get();
}
SqliteDb database;
if (!path.empty()) {
auto r_database = open_database(path);
if (r_database.is_error()) {
LOG(ERROR) << "Can't open language pack database " << path << ": " << r_database.error();
return add_language_database(string());
}
database = r_database.move_as_ok();
}
it = language_databases_.emplace(path, make_unique<LanguageDatabase>()).first;
it->second->path_ = std::move(path);
it->second->database_ = std::move(database);
return it->second.get();
}
LanguagePackManager::LanguagePackManager(ActorShared<> parent) : parent_(std::move(parent)) {
std::lock_guard<std::mutex> database_lock(language_database_mutex_);
manager_count_++;
language_pack_ = G()->get_option_string("localization_target");
language_code_ = G()->get_option_string("language_pack_id");
CHECK(check_language_pack_name(language_pack_));
CHECK(check_language_code_name(language_code_));
database_ = add_language_database(G()->get_option_string("language_pack_database_path"));
if (!language_pack_.empty() && !language_code_.empty()) {
auto language = add_language(database_, language_pack_, language_code_);
std::lock_guard<std::mutex> language_lock(language->mutex_);
base_language_code_ = language->base_language_code_;
if (!check_language_code_name(base_language_code_)) {
LOG(ERROR) << "Have invalid base language pack ID \"" << base_language_code_ << '"';
base_language_code_.clear();
}
if (!base_language_code_.empty()) {
add_language(database_, language_pack_, base_language_code_);
}
LOG(INFO) << "Use localization target \"" << language_pack_ << "\" with language pack \"" << language_code_
<< "\" based on \"" << base_language_code_ << "\" of version " << language->version_.load()
<< " with database \"" << database_->path_ << '"';
}
}
void LanguagePackManager::start_up() {
if (language_pack_.empty() || language_code_.empty()) {
return;
}
auto language = get_language(database_, language_pack_, language_code_);
CHECK(language != nullptr);
if (language->version_ == -1) {
load_empty_language_pack(language_code_);
}
repair_chosen_language_info();
if (!base_language_code_.empty()) {
auto base_language = get_language(database_, language_pack_, base_language_code_);
CHECK(base_language != nullptr);
if (base_language->version_ == -1) {
load_empty_language_pack(base_language_code_);
}
}
on_language_pack_version_changed(false, -1);
on_language_pack_version_changed(true, -1);
}
void LanguagePackManager::tear_down() {
if (ExitGuard::is_exited()) {
return;
}
std::lock_guard<std::mutex> lock(language_database_mutex_);
manager_count_--;
if (manager_count_ == 0) {
// can't clear language packs, because they can be accessed later using synchronous requests
// LOG(INFO) << "Clear language packs";
// language_databases_.clear();
}
}
string LanguagePackManager::get_main_language_code() {
if (language_pack_.empty() || language_code_.empty()) {
return "en";
}
if (language_code_.size() == 2) {
return language_code_;
}
std::lock_guard<std::mutex> packs_lock(database_->mutex_);
auto pack_it = database_->language_packs_.find(language_pack_);
CHECK(pack_it != database_->language_packs_.end());
LanguageInfo *info = nullptr;
LanguagePack *pack = pack_it->second.get();
std::lock_guard<std::mutex> languages_lock(pack->mutex_);
if (is_custom_language_code(language_code_)) {
auto custom_it = pack->custom_language_pack_infos_.find(language_code_);
if (custom_it != pack->custom_language_pack_infos_.end()) {
info = &custom_it->second;
}
} else {
for (auto &server_info : pack->server_language_pack_infos_) {
if (server_info.first == language_code_) {
info = &server_info.second;
}
}
}
if (info == nullptr) {
LOG(INFO) << "Failed to find information about chosen language " << language_code_
<< ", ensure that valid language pack ID is used";
if (!is_custom_language_code(language_code_)) {
get_languages(false, Auto());
}
} else {
if (!info->base_language_code_.empty()) {
return info->base_language_code_;
}
if (!info->plural_code_.empty()) {
return info->plural_code_;
}
}
return "en";
}
vector<string> LanguagePackManager::get_used_language_codes() {
if (language_pack_.empty() || language_code_.empty()) {
return {};
}
std::lock_guard<std::mutex> packs_lock(database_->mutex_);
auto pack_it = database_->language_packs_.find(language_pack_);
CHECK(pack_it != database_->language_packs_.end());
LanguageInfo *info = nullptr;
LanguagePack *pack = pack_it->second.get();
std::lock_guard<std::mutex> languages_lock(pack->mutex_);
if (is_custom_language_code(language_code_)) {
auto custom_it = pack->custom_language_pack_infos_.find(language_code_);
if (custom_it != pack->custom_language_pack_infos_.end()) {
info = &custom_it->second;
}
} else {
for (auto &server_info : pack->server_language_pack_infos_) {
if (server_info.first == language_code_) {
info = &server_info.second;
}
}
}
vector<string> result;
if (language_code_.size() == 2) {
result.push_back(language_code_);
}
if (info == nullptr) {
LOG(INFO) << "Failed to find information about chosen language " << language_code_
<< ", ensure that valid language pack ID is used";
if (!is_custom_language_code(language_code_)) {
get_languages(false, Auto());
}
} else {
if (!info->base_language_code_.empty()) {
result.push_back(info->base_language_code_);
}
if (!info->plural_code_.empty()) {
result.push_back(info->plural_code_);
}
}
return result;
}
void LanguagePackManager::on_language_pack_changed() {
auto new_language_pack = G()->get_option_string("localization_target");
if (new_language_pack == language_pack_) {
return;
}
language_pack_ = std::move(new_language_pack);
CHECK(check_language_pack_name(language_pack_));
inc_generation();
}
void LanguagePackManager::on_language_code_changed() {
auto new_language_code = G()->get_option_string("language_pack_id");
if (new_language_code == language_code_) {
return;
}
language_code_ = std::move(new_language_code);
CHECK(check_language_code_name(language_code_));
inc_generation();
}
void LanguagePackManager::on_language_pack_version_changed(bool is_base, int32 new_version) {
if (language_pack_.empty() || language_code_.empty()) {
return;
}
Language *language = get_language(database_, language_pack_, language_code_);
int32 version = language == nullptr ? static_cast<int32>(-1) : language->version_.load();
LOG(INFO) << (is_base ? "Base" : "Main") << " language pack version has changed from main " << version << " to "
<< new_version;
if (version == -1) {
return load_empty_language_pack(language_code_);
}
if (new_version < 0) {
Slice version_key = is_base ? Slice("base_language_pack_version") : Slice("language_pack_version");
new_version = narrow_cast<int32>(G()->get_option_integer(version_key, -1));
}
if (new_version <= 0) {
return;
}
string language_code;
if (is_base) {
language_code = base_language_code_;
if (language_code.empty()) {
LOG(ERROR) << "Have no base language, but received new version " << new_version;
return;
}
language = get_language(database_, language_pack_, language_code);
version = language == nullptr ? static_cast<int32>(-1) : language->version_.load();
if (version == -1) {
return load_empty_language_pack(language_code);
}
} else {
language_code = language_code_;
}
if (is_custom_language_code(language_code) || new_version <= version) {
return;
}
LOG(INFO) << (is_base ? "Base" : "Main") << " language pack " << language_code << " version has changed to "
<< new_version;
send_language_get_difference_query(language, std::move(language_code), version, Auto());
}
void LanguagePackManager::send_language_get_difference_query(Language *language, string language_code, int32 version,
Promise<Unit> &&promise) {
std::lock_guard<std::mutex> lock(language->mutex_);
language->get_difference_queries_.push_back(std::move(promise));
if (language->has_get_difference_query_) {
return;
}
CHECK(language->get_difference_queries_.size() == 1);
language->has_get_difference_query_ = true;
auto request_promise =
PromiseCreator::lambda([actor_id = actor_id(this), language_pack = language_pack_, language_code,
from_version = version](Result<NetQueryPtr> r_query) mutable {
auto r_result = fetch_result<telegram_api::langpack_getDifference>(std::move(r_query));
if (r_result.is_error()) {
send_closure(actor_id, &LanguagePackManager::on_failed_get_difference, std::move(language_pack),
std::move(language_code), r_result.move_as_error());
return;
}
auto result = r_result.move_as_ok();
LOG(INFO) << "Receive language pack difference for language pack " << result->lang_code_ << " from version "
<< result->from_version_ << " with version " << result->version_ << " of size "
<< result->strings_.size();
to_lower_inplace(result->lang_code_);
LOG_IF(ERROR, result->lang_code_ != language_code)
<< "Receive strings for " << result->lang_code_ << " instead of " << language_code;
LOG_IF(ERROR, result->from_version_ != from_version)
<< "Receive strings from " << result->from_version_ << " instead of " << from_version;
send_closure(actor_id, &LanguagePackManager::on_get_language_pack_strings, std::move(language_pack),
std::move(language_code), result->version_, true, vector<string>(), std::move(result->strings_),
Promise<td_api::object_ptr<td_api::languagePackStrings>>());
});
send_with_promise(G()->net_query_creator().create_unauth(
telegram_api::langpack_getDifference(language_pack_, language_code, version)),
std::move(request_promise));
}
void LanguagePackManager::on_language_pack_too_long(string language_code) {
if (language_code == language_code_) {
return on_language_pack_version_changed(false, std::numeric_limits<int32>::max());
}
if (language_code == base_language_code_) {
return on_language_pack_version_changed(true, std::numeric_limits<int32>::max());
}
LOG(WARNING) << "Receive languagePackTooLong for language " << language_code << ", but use language "
<< language_code_ << " with base language " << base_language_code_;
}
void LanguagePackManager::on_update_language_pack(tl_object_ptr<telegram_api::langPackDifference> difference) {
LOG(INFO) << "Receive update language pack difference for language pack " << difference->lang_code_
<< " from version " << difference->from_version_ << " with version " << difference->version_ << " of size "
<< difference->strings_.size();
to_lower_inplace(difference->lang_code_);
if (language_code_.empty()) {
LOG(INFO) << "Ignore difference for language pack " << difference->lang_code_
<< ", because have no used language pack";
return;
}
if (language_pack_.empty()) {
LOG(WARNING) << "Ignore difference for language pack " << difference->lang_code_
<< ", because localization target is not set";
return;
}
if (difference->lang_code_ != language_code_ && difference->lang_code_ != base_language_code_) {
LOG(WARNING) << "Ignore difference for language pack " << difference->lang_code_ << ", because using language pack "
<< language_code_ << " based on " << base_language_code_;
return;
}
if (is_custom_language_code(difference->lang_code_) || difference->lang_code_.empty()) {
LOG(ERROR) << "Ignore difference for language pack " << difference->lang_code_;
return;
}
Language *language = get_language(database_, language_pack_, difference->lang_code_);
int32 version = language == nullptr ? static_cast<int32>(-1) : language->version_.load();
if (difference->version_ <= version) {
LOG(INFO) << "Skip applying already applied language pack updates";
return;
}
if (version == -1 || version < difference->from_version_) {
LOG(INFO) << "Can't apply language pack difference";
return on_language_pack_version_changed(difference->lang_code_ != language_code_, difference->version_);
}
on_get_language_pack_strings(language_pack_, std::move(difference->lang_code_), difference->version_, true,
vector<string>(), std::move(difference->strings_),
Promise<td_api::object_ptr<td_api::languagePackStrings>>());
}
void LanguagePackManager::inc_generation() {
G()->set_option_empty("language_pack_version");
G()->set_option_empty("base_language_pack_version");
if (!language_pack_.empty() && !language_code_.empty()) {
LOG(INFO) << "Add main language " << language_code_;
CHECK(check_language_code_name(language_code_));
auto language = add_language(database_, language_pack_, language_code_);
on_language_pack_version_changed(false, std::numeric_limits<int32>::max());
repair_chosen_language_info();
{
std::lock_guard<std::mutex> lock(language->mutex_);
base_language_code_ = language->base_language_code_;
}
if (!check_language_code_name(base_language_code_)) {
LOG(ERROR) << "Have invalid base language pack ID \"" << base_language_code_ << '"';
base_language_code_.clear();
}
if (!base_language_code_.empty()) {
CHECK(base_language_code_ != language_code_);
LOG(INFO) << "Add base language " << base_language_code_;
add_language(database_, language_pack_, base_language_code_);
on_language_pack_version_changed(true, std::numeric_limits<int32>::max());
}
}
LOG(INFO) << "Finished to apply new language pack";
}
LanguagePackManager::Language *LanguagePackManager::get_language(LanguageDatabase *database,
const string &language_pack,
const string &language_code) {
std::unique_lock<std::mutex> lock(database->mutex_);
auto it = database->language_packs_.find(language_pack);
if (it == database->language_packs_.end()) {
return nullptr;
}
LanguagePack *pack = it->second.get();
lock.unlock();
return get_language(pack, language_code);
}
LanguagePackManager::Language *LanguagePackManager::get_language(LanguagePack *language_pack,
const string &language_code) {
CHECK(language_pack != nullptr);
std::lock_guard<std::mutex> lock(language_pack->mutex_);
auto it = language_pack->languages_.find(language_code);
if (it == language_pack->languages_.end()) {
return nullptr;
}
return it->second.get();
}
static string get_database_table_name(const string &language_pack, const string &language_code) {
return PSTRING() << "\"kv_" << language_pack << '_' << language_code << '"';
}
LanguagePackManager::Language *LanguagePackManager::add_language(LanguageDatabase *database,
const string &language_pack,
const string &language_code) {
std::lock_guard<std::mutex> packs_lock(database->mutex_);
auto pack_it = database->language_packs_.find(language_pack);
if (pack_it == database->language_packs_.end()) {
auto pack = make_unique<LanguagePack>();
if (!database->database_.empty()) {
pack->pack_kv_.init_with_connection(database->database_.clone(), get_database_table_name(language_pack, "0"))
.ensure();
bool need_drop_server = false;
for (auto &lang : pack->pack_kv_.get_all()) {
auto as_bool = [](Slice data) {
if (data == "true") {
return true;
}
if (data != "false") {
LOG(ERROR) << "Have invalid boolean value \"" << data << "\" in the database";
}
return false;
};
if (lang.first == "!server") {
// legacy info format, drop cache
need_drop_server = true;
continue;
}
if (lang.first == "!server2") {
auto all_infos = full_split(lang.second, '\x00');
if (all_infos.size() % 11 == 0) {
for (size_t i = 0; i < all_infos.size(); i += 11) {
if (all_infos[i].empty()) {
LOG(ERROR) << "Have empty info about a language pack";
continue;
}
LanguageInfo info;
info.name_ = std::move(all_infos[i + 1]);
info.native_name_ = std::move(all_infos[i + 2]);
info.base_language_code_ = std::move(all_infos[i + 3]);
info.plural_code_ = std::move(all_infos[i + 4]);
info.is_official_ = as_bool(all_infos[i + 5]);
info.is_rtl_ = as_bool(all_infos[i + 6]);
info.is_beta_ = as_bool(all_infos[i + 7]);
info.is_from_database_ = true;
info.total_string_count_ = to_integer<int32>(all_infos[i + 8]);
info.translated_string_count_ = to_integer<int32>(all_infos[i + 9]);
info.translation_url_ = std::move(all_infos[i + 10]);
pack->all_server_language_pack_infos_.emplace(all_infos[i], td::make_unique<LanguageInfo>(info));
pack->server_language_pack_infos_.emplace_back(std::move(all_infos[i]), std::move(info));
}
} else {
LOG(ERROR) << "Have wrong language pack info \"" << lang.second << "\" in the database";
}
continue;
}
auto all_infos = full_split(lang.second, '\x00');
if (all_infos.size() < 2) {
LOG(ERROR) << "Have wrong custom language pack info \"" << lang.second << '"';
continue;
}
auto &info = pack->custom_language_pack_infos_[lang.first];
info.name_ = std::move(all_infos[0]);
info.native_name_ = std::move(all_infos[1]);
if (all_infos.size() > 2) {
CHECK(all_infos.size() == 10);
info.base_language_code_ = std::move(all_infos[2]);
info.plural_code_ = std::move(all_infos[3]);
info.is_official_ = as_bool(all_infos[4]);
info.is_rtl_ = as_bool(all_infos[5]);
info.is_beta_ = as_bool(all_infos[6]);
info.total_string_count_ = to_integer<int32>(all_infos[7]);
info.translated_string_count_ = to_integer<int32>(all_infos[8]);
info.translation_url_ = std::move(all_infos[9]);
}
info.is_from_database_ = true;
}
if (need_drop_server) {
LOG(INFO) << "Drop old server language pack info cache";
pack->pack_kv_.erase("!server");
}
}
pack_it = database->language_packs_.emplace(language_pack, std::move(pack)).first;
}
LanguagePack *pack = pack_it->second.get();
std::lock_guard<std::mutex> languages_lock(pack->mutex_);
auto code_it = pack->languages_.find(language_code);
if (code_it == pack->languages_.end()) {
auto language = make_unique<Language>();
if (!database->database_.empty()) {
language->kv_
.init_with_connection(database->database_.clone(), get_database_table_name(language_pack, language_code))
.ensure();
language->version_ = load_database_language_version(&language->kv_);
language->key_count_ = load_database_language_key_count(&language->kv_);
language->base_language_code_ = load_database_language_base_language_code(&language->kv_);
LOG(INFO) << "Loaded language " << language_code << " with version " << language->version_.load()
<< ", key count " << language->key_count_.load() << " and base language "
<< language->base_language_code_;
}
code_it = pack->languages_.emplace(language_code, std::move(language)).first;
}
return code_it->second.get();
}
bool LanguagePackManager::language_has_string_unsafe(const Language *language, const string &key) {
return language->ordinary_strings_.count(key) != 0 || language->pluralized_strings_.count(key) != 0 ||
language->deleted_strings_.count(key) != 0;
}
bool LanguagePackManager::language_has_strings(Language *language, const vector<string> &keys) {
if (language == nullptr) {
return false;
}
std::lock_guard<std::mutex> lock(language->mutex_);
if (language->is_full_) {
return true;
}
if (keys.empty()) {
return false; // language is already checked to be not full
}
for (auto &key : keys) {
if (!language_has_string_unsafe(language, key)) {
return false;
}
}
return true;
}
void LanguagePackManager::load_language_string_unsafe(Language *language, const string &key, const string &value) {
CHECK(is_valid_key(key));
if (value[0] == '1') {
language->ordinary_strings_.emplace(key, value.substr(1));
return;
}
if (value[0] == '2') {
auto all = full_split(Slice(value).substr(1), '\x00');
if (all.size() == 6) {
language->pluralized_strings_.emplace(
key, td::make_unique<PluralizedString>(all[0].str(), all[1].str(), all[2].str(), all[3].str(), all[4].str(),
all[5].str()));
return;
}
}
LOG_IF(ERROR, !value.empty() && value != "3") << "Have invalid value \"" << value << '"';
if (!language->is_full_) {
language->deleted_strings_.insert(key);
}
}
bool LanguagePackManager::load_language_strings(LanguageDatabase *database, Language *language,
const vector<string> &keys) {
if (language == nullptr) {
return false;
}
std::lock_guard<std::mutex> database_lock(database->mutex_);
std::lock_guard<std::mutex> language_lock(language->mutex_);
if (language->is_full_) {
LOG(DEBUG) << "The language pack is already full in memory";
return true;
}
if (language->kv_.empty()) {
LOG(DEBUG) << "The language pack has no database";
return false;
}
LOG(DEBUG) << "Begin to load a language pack from database";
if (keys.empty()) {
if (language->version_ == -1 && language->was_loaded_full_) {
LOG(DEBUG) << "The language pack has already been loaded";
return false;
}
auto all_strings = language->kv_.get_all();
for (auto &str : all_strings) {
if (str.first[0] == '!') {
continue;
}
if (!language_has_string_unsafe(language, str.first)) {
LOG(DEBUG) << "Load string with key " << str.first << " from database";
load_language_string_unsafe(language, str.first, str.second);
}
}
language->was_loaded_full_ = true;
if (language->version_ == -1) {
return false;
}
language->is_full_ = true;
language->deleted_strings_.clear();
return true;
}
bool have_all = true;
for (auto &key : keys) {
if (!language_has_string_unsafe(language, key)) {
auto value = language->kv_.get(key);
if (value.empty()) {
if (language->version_ == -1) {
LOG(DEBUG) << "Have no string with key " << key << " in the database";
have_all = false;
continue;
}
// have full language in the database, so this string is just deleted
}
LOG(DEBUG) << "Load string with key " << key << " from database";
load_language_string_unsafe(language, key, value);
}
}
return have_all;
}
td_api::object_ptr<td_api::LanguagePackStringValue> LanguagePackManager::get_language_pack_string_value_object(
const string &value) {
return td_api::make_object<td_api::languagePackStringValueOrdinary>(value);
}
td_api::object_ptr<td_api::LanguagePackStringValue> LanguagePackManager::get_language_pack_string_value_object(
const PluralizedString &value) {
return td_api::make_object<td_api::languagePackStringValuePluralized>(
value.zero_value_, value.one_value_, value.two_value_, value.few_value_, value.many_value_, value.other_value_);
}
td_api::object_ptr<td_api::LanguagePackStringValue> LanguagePackManager::get_language_pack_string_value_object() {
return td_api::make_object<td_api::languagePackStringValueDeleted>();
}
td_api::object_ptr<td_api::languagePackString> LanguagePackManager::get_language_pack_string_object(
const string &key, const string &value) {
return td_api::make_object<td_api::languagePackString>(key, get_language_pack_string_value_object(value));
}
td_api::object_ptr<td_api::languagePackString> LanguagePackManager::get_language_pack_string_object(
const string &key, const PluralizedString &value) {
return td_api::make_object<td_api::languagePackString>(key, get_language_pack_string_value_object(value));
}
td_api::object_ptr<td_api::languagePackString> LanguagePackManager::get_language_pack_string_object(const string &key) {
return td_api::make_object<td_api::languagePackString>(key, get_language_pack_string_value_object());
}
td_api::object_ptr<td_api::LanguagePackStringValue> LanguagePackManager::get_language_pack_string_value_object(
const Language *language, const string &key) {
CHECK(language != nullptr);
auto ordinary_it = language->ordinary_strings_.find(key);
if (ordinary_it != language->ordinary_strings_.end()) {
return get_language_pack_string_value_object(ordinary_it->second);
}
auto pluralized_it = language->pluralized_strings_.find(key);
if (pluralized_it != language->pluralized_strings_.end()) {
return get_language_pack_string_value_object(*pluralized_it->second);
}
LOG_IF(ERROR, !language->is_full_ && language->deleted_strings_.count(key) == 0) << "Have no string for key " << key;
return get_language_pack_string_value_object();
}
td_api::object_ptr<td_api::languagePackString> LanguagePackManager::get_language_pack_string_object(
const Language *language, const string &key) {
return td_api::make_object<td_api::languagePackString>(key, get_language_pack_string_value_object(language, key));
}
td_api::object_ptr<td_api::languagePackStrings> LanguagePackManager::get_language_pack_strings_object(
Language *language, const vector<string> &keys) {
CHECK(language != nullptr);
std::lock_guard<std::mutex> lock(language->mutex_);
vector<td_api::object_ptr<td_api::languagePackString>> strings;
if (keys.empty()) {
for (auto &str : language->ordinary_strings_) {
strings.push_back(get_language_pack_string_object(str.first, str.second));
}
for (auto &str : language->pluralized_strings_) {
strings.push_back(get_language_pack_string_object(str.first, *str.second));
}
} else {
for (auto &key : keys) {
strings.push_back(get_language_pack_string_object(language, key));
}
}
return td_api::make_object<td_api::languagePackStrings>(std::move(strings));
}
void LanguagePackManager::get_languages(bool only_local,
Promise<td_api::object_ptr<td_api::localizationTargetInfo>> promise) {
if (language_pack_.empty()) {
return promise.set_error(Status::Error(400, "Option \"localization_target\" needs to be set first"));
}
if (only_local) {
return on_get_languages(vector<tl_object_ptr<telegram_api::langPackLanguage>>(), language_pack_, true,
std::move(promise));
}
auto request_promise = PromiseCreator::lambda([actor_id = actor_id(this), language_pack = language_pack_,
promise = std::move(promise)](Result<NetQueryPtr> r_query) mutable {
TRY_RESULT_PROMISE(promise, result, fetch_result<telegram_api::langpack_getLanguages>(std::move(r_query)));
send_closure(actor_id, &LanguagePackManager::on_get_languages, std::move(result), std::move(language_pack), false,
std::move(promise));
});
send_with_promise(G()->net_query_creator().create_unauth(telegram_api::langpack_getLanguages(language_pack_)),
std::move(request_promise));
}
void LanguagePackManager::search_language_info(string language_code,
Promise<td_api::object_ptr<td_api::languagePackInfo>> promise) {
if (language_pack_.empty()) {
return promise.set_error(Status::Error(400, "Option \"localization_target\" needs to be set first"));
}
auto request_promise =
PromiseCreator::lambda([actor_id = actor_id(this), language_pack = language_pack_, language_code,
promise = std::move(promise)](Result<NetQueryPtr> r_query) mutable {
TRY_RESULT_PROMISE(promise, result, fetch_result<telegram_api::langpack_getLanguage>(std::move(r_query)));
LOG(INFO) << "Receive " << to_string(result);
send_closure(actor_id, &LanguagePackManager::on_get_language, std::move(result), std::move(language_pack),
std::move(language_code), std::move(promise));
});
send_with_promise(
G()->net_query_creator().create_unauth(telegram_api::langpack_getLanguage(language_pack_, language_code)),
std::move(request_promise));
}
void LanguagePackManager::repair_chosen_language_info() {
CHECK(!language_pack_.empty() && !language_code_.empty());
if (is_custom_language_code(language_code_)) {
return;
}
std::lock_guard<std::mutex> packs_lock(database_->mutex_);
auto pack_it = database_->language_packs_.find(language_pack_);
CHECK(pack_it != database_->language_packs_.end());
LanguagePack *pack = pack_it->second.get();
std::lock_guard<std::mutex> languages_lock(pack->mutex_);
for (auto &server_info : pack->server_language_pack_infos_) {
if (server_info.first == language_code_) {
return;
}
}
LOG(INFO) << "Repair info about language " << language_code_;
search_language_info(language_code_, Auto());
}
td_api::object_ptr<td_api::languagePackInfo> LanguagePackManager::get_language_pack_info_object(
const string &language_code, const LanguageInfo &info) {
return td_api::make_object<td_api::languagePackInfo>(language_code, info.base_language_code_, info.name_,
info.native_name_, info.plural_code_, info.is_official_,
info.is_rtl_, info.is_beta_, false, info.total_string_count_,
info.translated_string_count_, 0, info.translation_url_);
}
string LanguagePackManager::get_language_info_string(const LanguageInfo &info) {
return PSTRING() << info.name_ << '\x00' << info.native_name_ << '\x00' << info.base_language_code_ << '\x00'
<< info.plural_code_ << '\x00' << info.is_official_ << '\x00' << info.is_rtl_ << '\x00'
<< info.is_beta_ << '\x00' << info.total_string_count_ << '\x00' << info.translated_string_count_
<< '\x00' << info.translation_url_;
}
void LanguagePackManager::on_get_language_info(const string &language_pack,
td_api::languagePackInfo *language_pack_info) {
CHECK(language_pack_info != nullptr);
auto language = add_language(database_, language_pack, language_pack_info->id_);
language_pack_info->local_string_count_ = language->key_count_;
SqliteKeyValue *kv = nullptr;
bool was_updated_base_language_code = false;
{
std::lock_guard<std::mutex> lock(language->mutex_);
if (language_pack_info->base_language_pack_id_ != language->base_language_code_) {
language->base_language_code_ = language_pack_info->base_language_pack_id_;
if (language_pack == language_pack_ && language_pack_info->id_ == language_code_) {
base_language_code_ = language->base_language_code_;
was_updated_base_language_code = true;
}
if (!language->kv_.empty()) {
kv = &language->kv_;
}
}
}
if (was_updated_base_language_code) {
G()->set_option_empty("base_language_pack_version");
if (!base_language_code_.empty()) {
add_language(database_, language_pack_, base_language_code_);
on_language_pack_version_changed(true, std::numeric_limits<int32>::max());
}
}
if (kv != nullptr) {
std::lock_guard<std::mutex> lock(database_->mutex_);
kv->set("!base_language_code", language_pack_info->base_language_pack_id_);
}
}
void LanguagePackManager::save_server_language_pack_infos(LanguagePack *pack) {
// mutexes are locked by the caller
if (pack->pack_kv_.empty()) {
return;
}
LOG(INFO) << "Save changes server language pack infos";
vector<string> all_strings;
all_strings.reserve(2 * pack->server_language_pack_infos_.size());
for (auto &info : pack->server_language_pack_infos_) {
all_strings.push_back(info.first);
all_strings.push_back(get_language_info_string(info.second));
}
pack->pack_kv_.set("!server2", implode(all_strings, '\x00'));
}
void LanguagePackManager::on_get_languages(vector<tl_object_ptr<telegram_api::langPackLanguage>> languages,
string language_pack, bool only_local,
Promise<td_api::object_ptr<td_api::localizationTargetInfo>> promise) {
auto results = td_api::make_object<td_api::localizationTargetInfo>();
FlatHashSet<string> added_languages;
auto add_language_info = [&results, &added_languages](const string &language_code, const LanguageInfo &info,
bool is_installed) {
if (!language_code.empty() && added_languages.insert(language_code).second) {
results->language_packs_.push_back(get_language_pack_info_object(language_code, info));
results->language_packs_.back()->is_installed_ = is_installed;
}
};
{
std::lock_guard<std::mutex> packs_lock(database_->mutex_);
auto pack_it = database_->language_packs_.find(language_pack);
if (pack_it != database_->language_packs_.end()) {
LanguagePack *pack = pack_it->second.get();
std::lock_guard<std::mutex> pack_lock(pack->mutex_);
for (auto &info : pack->custom_language_pack_infos_) {
add_language_info(info.first, info.second, true);
}
if (only_local) {
for (auto &info : pack->server_language_pack_infos_) {
add_language_info(info.first, info.second, false);
}
}
}
}
vector<std::pair<string, LanguageInfo>> all_server_infos;
for (auto &language : languages) {
auto r_info = get_language_info(language.get());
if (r_info.is_error()) {
continue;
}
add_language_info(language->lang_code_, r_info.ok(), false);
all_server_infos.emplace_back(std::move(language->lang_code_), r_info.move_as_ok());
}
for (auto &language_pack_info : results->language_packs_) {
on_get_language_info(language_pack, language_pack_info.get());
}
if (!only_local) {
std::lock_guard<std::mutex> packs_lock(database_->mutex_);
auto pack_it = database_->language_packs_.find(language_pack);
if (pack_it != database_->language_packs_.end()) {
LanguagePack *pack = pack_it->second.get();
std::lock_guard<std::mutex> pack_lock(pack->mutex_);
if (pack->server_language_pack_infos_ != all_server_infos) {
for (auto &info : all_server_infos) {
pack->all_server_language_pack_infos_[info.first] = td::make_unique<LanguageInfo>(info.second);
}
pack->server_language_pack_infos_ = std::move(all_server_infos);
save_server_language_pack_infos(pack);
}
}
}
promise.set_value(std::move(results));
}
void LanguagePackManager::on_get_language(tl_object_ptr<telegram_api::langPackLanguage> lang_pack_language,
string language_pack, string language_code,
Promise<td_api::object_ptr<td_api::languagePackInfo>> promise) {
CHECK(lang_pack_language != nullptr);
TRY_RESULT_PROMISE(promise, language_info, get_language_info(lang_pack_language.get()));
auto result = get_language_pack_info_object(lang_pack_language->lang_code_, language_info);
on_get_language_info(language_pack, result.get());
// updating languages cache
std::lock_guard<std::mutex> packs_lock(database_->mutex_);
auto pack_it = database_->language_packs_.find(language_pack);
if (pack_it != database_->language_packs_.end()) {
LanguagePack *pack = pack_it->second.get();
std::lock_guard<std::mutex> pack_lock(pack->mutex_);
result->is_installed_ = pack->custom_language_pack_infos_.count(lang_pack_language->lang_code_) != 0 ||
pack->custom_language_pack_infos_.count(language_code) != 0;
bool is_changed = false;
for (auto &info : pack->server_language_pack_infos_) {
if (info.first == lang_pack_language->lang_code_ || info.first == language_code) {
if (!(info.second == language_info)) {
LOG(INFO) << "Language pack " << info.first << " was changed";
is_changed = true;
info.second = language_info;
}
}
}
pack->all_server_language_pack_infos_[lang_pack_language->lang_code_] =
td::make_unique<LanguageInfo>(std::move(language_info));
if (is_changed) {
save_server_language_pack_infos(pack);
}
} else {
LOG(ERROR) << "Failed to find localization target " << language_pack;
}
promise.set_value(std::move(result));
}
void LanguagePackManager::get_language_pack_strings(string language_code, vector<string> keys,
Promise<td_api::object_ptr<td_api::languagePackStrings>> promise) {
if (!check_language_code_name(language_code) || language_code.empty()) {
return promise.set_error(Status::Error(400, "Language pack ID is invalid"));
}
if (language_pack_.empty()) {
return promise.set_error(Status::Error(400, "Option \"localization_target\" needs to be set first"));
}
for (auto &key : keys) {
if (!is_valid_key(key)) {
return promise.set_error(Status::Error(400, "Invalid key name"));
}
}
Language *language = add_language(database_, language_pack_, language_code);
if (language_has_strings(language, keys)) {
return promise.set_value(get_language_pack_strings_object(language, keys));
}
if (load_language_strings(database_, language, keys)) {
return promise.set_value(get_language_pack_strings_object(language, keys));
}
if (is_custom_language_code(language_code)) {
return promise.set_error(Status::Error(400, "Custom language pack not found"));
}
if (keys.empty()) {
auto &queries = get_all_language_pack_strings_queries_[language_pack_][language_code].queries_;
queries.push_back(std::move(promise));
if (queries.size() != 1) {
// send request only once
return;
}
auto result_promise =
PromiseCreator::lambda([actor_id = actor_id(this), language_pack = language_pack_, language_code](
Result<td_api::object_ptr<td_api::languagePackStrings>> r_strings) mutable {
send_closure(actor_id, &LanguagePackManager::on_get_all_language_pack_strings, std::move(language_pack),
std::move(language_code), std::move(r_strings));
});
auto request_promise =
PromiseCreator::lambda([actor_id = actor_id(this), language_pack = language_pack_, language_code,
promise = std::move(result_promise)](Result<NetQueryPtr> r_query) mutable {
TRY_RESULT_PROMISE(promise, result, fetch_result<telegram_api::langpack_getLangPack>(std::move(r_query)));
to_lower_inplace(result->lang_code_);
LOG(INFO) << "Receive language pack " << result->lang_code_ << " from version " << result->from_version_
<< " with version " << result->version_ << " of size " << result->strings_.size();
LOG_IF(ERROR, result->lang_code_ != language_code)
<< "Receive strings for " << result->lang_code_ << " instead of " << language_code;
LOG_IF(ERROR, result->from_version_ != 0) << "Receive language pack from version " << result->from_version_;
send_closure(actor_id, &LanguagePackManager::on_get_language_pack_strings, std::move(language_pack),
std::move(language_code), result->version_, false, vector<string>(), std::move(result->strings_),
std::move(promise));
});
send_with_promise(
G()->net_query_creator().create_unauth(telegram_api::langpack_getLangPack(language_pack_, language_code)),
std::move(request_promise));
} else {
auto request_promise =
PromiseCreator::lambda([actor_id = actor_id(this), language_pack = language_pack_, language_code, keys,
promise = std::move(promise)](Result<NetQueryPtr> r_query) mutable {
TRY_RESULT_PROMISE(promise, result, fetch_result<telegram_api::langpack_getStrings>(std::move(r_query)));
send_closure(actor_id, &LanguagePackManager::on_get_language_pack_strings, std::move(language_pack),
std::move(language_code), -1, false, std::move(keys), std::move(result), std::move(promise));
});
send_with_promise(G()->net_query_creator().create_unauth(
telegram_api::langpack_getStrings(language_pack_, language_code, std::move(keys))),
std::move(request_promise));
}
}
void LanguagePackManager::load_empty_language_pack(const string &language_code) {
if (is_custom_language_code(language_code)) {
return;
}
get_language_pack_strings(language_code, vector<string>(), Auto());
}
void LanguagePackManager::synchronize_language_pack(string language_code, Promise<Unit> promise) {
if (!check_language_code_name(language_code) || language_code.empty()) {
return promise.set_error(Status::Error(400, "Language pack ID is invalid"));
}
if (language_pack_.empty()) {
return promise.set_error(Status::Error(400, "Option \"localization_target\" needs to be set first"));
}
if (is_custom_language_code(language_code)) {
return promise.set_value(Unit());
}
Language *language = add_language(database_, language_pack_, language_code);
load_language_strings(database_, language, vector<string>());
int32 version = language->version_.load();
if (version == -1) {
version = 0;
}
send_language_get_difference_query(language, std::move(language_code), version, std::move(promise));
}
static td_api::object_ptr<td_api::LanguagePackStringValue> copy_language_pack_string_value(
const td_api::LanguagePackStringValue *value) {
switch (value->get_id()) {
case td_api::languagePackStringValueOrdinary::ID: {
auto old_value = static_cast<const td_api::languagePackStringValueOrdinary *>(value);
return make_tl_object<td_api::languagePackStringValueOrdinary>(old_value->value_);
}
case td_api::languagePackStringValuePluralized::ID: {
auto old_value = static_cast<const td_api::languagePackStringValuePluralized *>(value);
return make_tl_object<td_api::languagePackStringValuePluralized>(
std::move(old_value->zero_value_), std::move(old_value->one_value_), std::move(old_value->two_value_),
std::move(old_value->few_value_), std::move(old_value->many_value_), std::move(old_value->other_value_));
}
case td_api::languagePackStringValueDeleted::ID:
return make_tl_object<td_api::languagePackStringValueDeleted>();
default:
UNREACHABLE();
return nullptr;
}
}
void LanguagePackManager::on_get_all_language_pack_strings(
string language_pack, string language_code, Result<td_api::object_ptr<td_api::languagePackStrings>> r_strings) {
auto &queries = get_all_language_pack_strings_queries_[language_pack][language_code].queries_;
auto promises = std::move(queries);
CHECK(!promises.empty());
auto it = get_all_language_pack_strings_queries_.find(language_pack);
it->second.erase(language_code);
if (it->second.empty()) {
get_all_language_pack_strings_queries_.erase(it);
}
if (r_strings.is_error()) {
fail_promises(promises, r_strings.move_as_error());
return;
}
auto strings = r_strings.move_as_ok();
size_t left_non_empty_promise_count = 0;
for (auto &promise : promises) {
if (promise) {
left_non_empty_promise_count++;
}
}
for (auto &promise : promises) {
if (promise) {
if (left_non_empty_promise_count == 1) {
LOG(DEBUG) << "Set last non-empty promise";
promise.set_value(std::move(strings));
} else {
LOG(DEBUG) << "Set non-empty promise";
vector<td_api::object_ptr<td_api::languagePackString>> strings_copy;
for (auto &result : strings->strings_) {
CHECK(result != nullptr);
strings_copy.push_back(td_api::make_object<td_api::languagePackString>(
result->key_, copy_language_pack_string_value(result->value_.get())));
}
promise.set_value(td_api::make_object<td_api::languagePackStrings>(std::move(strings_copy)));
}
left_non_empty_promise_count--;
} else {
LOG(DEBUG) << "Set empty promise";
promise.set_value(nullptr);
}
}
CHECK(left_non_empty_promise_count == 0);
}
td_api::object_ptr<td_api::Object> LanguagePackManager::get_language_pack_string(const string &database_path,
const string &language_pack,
const string &language_code,
const string &key) {
if (!check_language_pack_name(language_pack) || language_pack.empty()) {
return td_api::make_object<td_api::error>(400, "Localization target is invalid");
}
if (!check_language_code_name(language_code) || language_code.empty()) {
return td_api::make_object<td_api::error>(400, "Language pack ID is invalid");
}
if (!is_valid_key(key)) {
return td_api::make_object<td_api::error>(400, "Key is invalid");
}
std::unique_lock<std::mutex> language_databases_lock(language_database_mutex_);
LanguageDatabase *database = add_language_database(database_path);
CHECK(database != nullptr);
language_databases_lock.unlock();
Language *language = add_language(database, language_pack, language_code);
vector<string> keys{key};
if (language_has_strings(language, keys)) {
std::lock_guard<std::mutex> lock(language->mutex_);
return get_language_pack_string_value_object(language, key);
}
if (load_language_strings(database, language, keys)) {
std::lock_guard<std::mutex> lock(language->mutex_);
return get_language_pack_string_value_object(language, key);
}
return td_api::make_object<td_api::error>(404, "Not Found");
}
bool LanguagePackManager::is_valid_key(Slice key) {
for (auto c : key) {
if (!is_alnum(c) && c != '_' && c != '.' && c != '-') {
return false;
}
}
return !key.empty();
}
void LanguagePackManager::save_strings_to_database(SqliteKeyValue *kv, int32 new_version, bool new_is_full,
int32 new_key_count, vector<std::pair<string, string>> &&strings) {
LOG(DEBUG) << "Save to database a language pack with new version " << new_version << " and " << strings.size()
<< " new strings";
if (new_version == -1 && strings.empty()) {
return;
}
std::lock_guard<std::mutex> lock(database_->mutex_);
CHECK(kv != nullptr);
if (kv->empty()) {
LOG(DEBUG) << "There is no associated database key-value";
return;
}
auto old_version = load_database_language_version(kv);
if (old_version > new_version || (old_version == new_version && strings.empty())) {
LOG(DEBUG) << "Language pack version doesn't increased from " << old_version;
return;
}
kv->begin_write_transaction().ensure();
for (const auto &str : strings) {
if (!is_valid_key(str.first)) {
LOG(ERROR) << "Have invalid key \"" << str.first << '"';
continue;
}
if (new_is_full && str.second == "3") {
kv->erase(str.first);
} else {
kv->set(str.first, str.second);
}
LOG(DEBUG) << "Save language pack string with key " << str.first << " to database";
}
if (old_version != new_version) {
LOG(DEBUG) << "Set language pack version in database to " << new_version;
kv->set("!version", to_string(new_version));
}
if (new_key_count != -1) {
LOG(DEBUG) << "Set language pack key count in database to " << new_key_count;
kv->set("!key_count", to_string(new_key_count));
}
kv->commit_transaction().ensure();
}
void LanguagePackManager::on_get_language_pack_strings(
string language_pack, string language_code, int32 version, bool is_diff, vector<string> &&keys,
vector<tl_object_ptr<telegram_api::LangPackString>> results,
Promise<td_api::object_ptr<td_api::languagePackStrings>> promise) {
Language *language = get_language(database_, language_pack, language_code);
bool is_version_changed = false;
int32 new_database_version = -1;
int32 new_key_count = -1;
bool new_is_full = false;
vector<std::pair<string, string>> database_strings;
if (language == nullptr || language->version_ < version || !keys.empty()) {
if (language == nullptr) {
language = add_language(database_, language_pack, language_code);
CHECK(language != nullptr);
}
load_language_strings(database_, language, keys);
std::lock_guard<std::mutex> lock(language->mutex_);
int32 key_count_delta = 0;
if (language->version_ < version || !keys.empty()) {
auto is_first = language->version_ == -1;
vector<td_api::object_ptr<td_api::languagePackString>> strings;
if (language->version_ < version) {
LOG(INFO) << "Set language pack " << language_code << " version to " << version;
language->version_ = version;
new_database_version = version;
is_version_changed = true;
}
for (auto &result : results) {
CHECK(result != nullptr);
switch (result->get_id()) {
case telegram_api::langPackString::ID: {
auto str = telegram_api::move_object_as<telegram_api::langPackString>(result);
if (!is_valid_key(str->key_)) {
LOG(ERROR) << "Receive invalid key \"" << str->key_ << '"';
break;
}
auto it = language->ordinary_strings_.find(str->key_);
if (it == language->ordinary_strings_.end()) {
key_count_delta++;
it = language->ordinary_strings_.emplace(str->key_, std::move(str->value_)).first;
} else {
it->second = std::move(str->value_);
}
key_count_delta -= static_cast<int32>(language->pluralized_strings_.erase(str->key_));
language->deleted_strings_.erase(str->key_);
if (is_diff) {
strings.push_back(get_language_pack_string_object(it->first, it->second));
}
database_strings.emplace_back(std::move(str->key_), PSTRING() << '1' << it->second);
break;
}
case telegram_api::langPackStringPluralized::ID: {
auto str = telegram_api::move_object_as<telegram_api::langPackStringPluralized>(result);
if (!is_valid_key(str->key_)) {
LOG(ERROR) << "Receive invalid key \"" << str->key_ << '"';
break;
}
auto value = td::make_unique<PluralizedString>(std::move(str->zero_value_), std::move(str->one_value_),
std::move(str->two_value_), std::move(str->few_value_),
std::move(str->many_value_), std::move(str->other_value_));
auto it = language->pluralized_strings_.find(str->key_);
if (it == language->pluralized_strings_.end()) {
key_count_delta++;
it = language->pluralized_strings_.emplace(str->key_, std::move(value)).first;
} else {
it->second = std::move(value);
}
key_count_delta -= static_cast<int32>(language->ordinary_strings_.erase(str->key_));
language->deleted_strings_.erase(str->key_);
if (is_diff) {
strings.push_back(get_language_pack_string_object(it->first, *it->second));
}
database_strings.emplace_back(
std::move(str->key_), PSTRING()
<< '2' << it->second->zero_value_ << '\x00' << it->second->one_value_
<< '\x00' << it->second->two_value_ << '\x00' << it->second->few_value_
<< '\x00' << it->second->many_value_ << '\x00' << it->second->other_value_);
break;
}
case telegram_api::langPackStringDeleted::ID: {
auto str = telegram_api::move_object_as<telegram_api::langPackStringDeleted>(result);
if (!is_valid_key(str->key_)) {
LOG(ERROR) << "Receive invalid key \"" << str->key_ << '"';
break;
}
key_count_delta -= static_cast<int32>(language->ordinary_strings_.erase(str->key_));
key_count_delta -= static_cast<int32>(language->pluralized_strings_.erase(str->key_));
language->deleted_strings_.insert(str->key_);
if (is_diff) {
strings.push_back(get_language_pack_string_object(str->key_));
}
database_strings.emplace_back(std::move(str->key_), "3");
break;
}
default:
UNREACHABLE();
break;
}
}
if (!language->is_full_) {
for (const auto &key : keys) {
if (!language_has_string_unsafe(language, key)) {
LOG(ERROR) << "Doesn't receive key " << key << " from server";
language->deleted_strings_.insert(key);
if (is_diff) {
strings.push_back(get_language_pack_string_object(key));
}
database_strings.emplace_back(key, "3");
}
}
}
if (key_count_delta != 0) {
new_key_count = language->key_count_ + key_count_delta;
language->key_count_ = new_key_count;
}
if (keys.empty() && !is_diff) {
CHECK(new_database_version >= 0);
language->is_full_ = true;
language->deleted_strings_.clear();
}
new_is_full = language->is_full_;
if (is_diff || (new_is_full && is_first)) {
send_closure(
G()->td(), &Td::send_update,
td_api::make_object<td_api::updateLanguagePackStrings>(language_pack, language_code, std::move(strings)));
}
}
}
if (is_custom_language_code(language_code) && new_database_version == -1) {
new_database_version = 1;
}
save_strings_to_database(&language->kv_, new_database_version, new_is_full, new_key_count,
std::move(database_strings));
if (is_diff) {
CHECK(language != nullptr);
vector<Promise<Unit>> get_difference_queries;
{
std::lock_guard<std::mutex> lock(language->mutex_);
if (language->has_get_difference_query_) {
language->has_get_difference_query_ = false;
get_difference_queries = std::move(language->get_difference_queries_);
reset_to_empty(language->get_difference_queries_);
is_version_changed = true;
}
}
for (auto &query : get_difference_queries) {
query.set_value(Unit());
}
}
if (is_version_changed && language_pack == language_pack_ &&
(language_code == language_code_ || language_code == base_language_code_)) {
send_closure_later(actor_id(this), &LanguagePackManager::on_language_pack_version_changed,
language_code != language_code_, -1);
}
if (promise) {
promise.set_value(get_language_pack_strings_object(language, keys));
}
}
void LanguagePackManager::on_failed_get_difference(string language_pack, string language_code, Status error) {
Language *language = get_language(database_, language_pack, language_code);
CHECK(language != nullptr);
vector<Promise<Unit>> get_difference_queries;
{
std::lock_guard<std::mutex> lock(language->mutex_);
if (language->has_get_difference_query_) {
language->has_get_difference_query_ = false;
if (language_pack == language_pack_ &&
(language_code == language_code_ || language_code == base_language_code_)) {
send_closure_later(actor_id(this), &LanguagePackManager::on_language_pack_version_changed,
language_code != language_code_, -1);
}
get_difference_queries = std::move(language->get_difference_queries_);
reset_to_empty(language->get_difference_queries_);
}
}
fail_promises(get_difference_queries, std::move(error));
}
void LanguagePackManager::add_custom_server_language(string language_code, Promise<Unit> &&promise) {
if (language_pack_.empty()) {
return promise.set_error(Status::Error(400, "Option \"localization_target\" needs to be set first"));
}
if (!check_language_code_name(language_code)) {
return promise.set_error(Status::Error(400, "Language pack ID must contain only letters, digits and hyphen"));
}
if (is_custom_language_code(language_code)) {
return promise.set_error(
Status::Error(400, "Custom local language pack can't be added through addCustomServerLanguagePack"));
}
if (get_language(database_, language_pack_, language_code) == nullptr) {
return promise.set_error(Status::Error(400, "Language pack not found"));
}
std::lock_guard<std::mutex> packs_lock(database_->mutex_);
auto pack_it = database_->language_packs_.find(language_pack_);
CHECK(pack_it != database_->language_packs_.end());
LanguagePack *pack = pack_it->second.get();
std::lock_guard<std::mutex> pack_lock(pack->mutex_);
auto it = pack->all_server_language_pack_infos_.find(language_code);
if (it == pack->all_server_language_pack_infos_.end()) {
return promise.set_error(Status::Error(400, "Language pack info not found"));
}
auto &info = pack->custom_language_pack_infos_[language_code];
info = *it->second;
if (!pack->pack_kv_.empty()) {
pack->pack_kv_.set(language_code, get_language_info_string(info));
}
promise.set_value(Unit());
}
Result<tl_object_ptr<telegram_api::LangPackString>> LanguagePackManager::convert_to_telegram_api(
tl_object_ptr<td_api::languagePackString> &&str) {
if (str == nullptr) {
return Status::Error(400, "Language pack strings must be non-empty");
}
string key = std::move(str->key_);
if (!is_valid_key(key)) {
return Status::Error(400, "Key is invalid");
}
if (str->value_ == nullptr) {
return make_tl_object<telegram_api::langPackStringDeleted>(std::move(key));
}
switch (str->value_->get_id()) {
case td_api::languagePackStringValueOrdinary::ID: {
auto value = static_cast<td_api::languagePackStringValueOrdinary *>(str->value_.get());
if (!clean_input_string(value->value_)) {
return Status::Error(400, "Language pack string value must be encoded in UTF-8");
}
return make_tl_object<telegram_api::langPackString>(std::move(key), std::move(value->value_));
}
case td_api::languagePackStringValuePluralized::ID: {
auto value = static_cast<td_api::languagePackStringValuePluralized *>(str->value_.get());
if (!clean_input_string(value->zero_value_) || !clean_input_string(value->one_value_) ||
!clean_input_string(value->two_value_) || !clean_input_string(value->few_value_) ||
!clean_input_string(value->many_value_) || !clean_input_string(value->other_value_)) {
return Status::Error(400, "Language pack string value must be encoded in UTF-8");
}
return make_tl_object<telegram_api::langPackStringPluralized>(
31, std::move(key), std::move(value->zero_value_), std::move(value->one_value_), std::move(value->two_value_),
std::move(value->few_value_), std::move(value->many_value_), std::move(value->other_value_));
}
case td_api::languagePackStringValueDeleted::ID:
// there is no reason to save deleted strings in a custom language pack to database
return make_tl_object<telegram_api::langPackStringDeleted>(std::move(key));
default:
UNREACHABLE();
return nullptr;
}
}
Result<LanguagePackManager::LanguageInfo> LanguagePackManager::get_language_info(
telegram_api::langPackLanguage *language) {
if (!check_language_code_name(language->lang_code_) || language->lang_code_.empty()) {
LOG(ERROR) << "Receive unsupported language pack ID " << language->lang_code_ << " from server";
return Status::Error(500, "Unsupported language pack ID");
}
if (is_custom_language_code(language->lang_code_)) {
LOG(ERROR) << "Receive custom language pack ID \"" << language->lang_code_ << "\" from server";
return Status::Error(500, "Unallowed custom language pack ID");
}
to_lower_inplace(language->lang_code_);
LanguageInfo info;
info.name_ = std::move(language->name_);
info.native_name_ = std::move(language->native_name_);
info.base_language_code_ = std::move(language->base_lang_code_);
info.plural_code_ = std::move(language->plural_code_);
info.is_official_ = language->official_;
info.is_rtl_ = language->rtl_;
info.is_beta_ = language->beta_;
info.is_from_database_ = false;
info.total_string_count_ = language->strings_count_;
info.translated_string_count_ = language->translated_count_;
info.translation_url_ = language->translations_url_;
if (!check_language_code_name(info.base_language_code_)) {
LOG(ERROR) << "Have invalid base language pack ID \"" << info.base_language_code_ << '"';
info.base_language_code_.clear();
}
if (is_custom_language_code(info.base_language_code_)) {
LOG(ERROR) << "Receive custom base language pack ID \"" << info.base_language_code_ << "\" from server";
info.base_language_code_.clear();
}
if (info.base_language_code_ == language->lang_code_) {
LOG(ERROR) << "Receive language pack \"" << info.base_language_code_ << "\"based on self";
info.base_language_code_.clear();
}
return std::move(info);
}
Result<LanguagePackManager::LanguageInfo> LanguagePackManager::get_language_info(
td_api::languagePackInfo *language_pack_info) {
if (language_pack_info == nullptr) {
return Status::Error(400, "Language pack info must be non-empty");
}
if (!clean_input_string(language_pack_info->id_)) {
return Status::Error(400, "Language pack ID must be encoded in UTF-8");
}
if (!clean_input_string(language_pack_info->base_language_pack_id_)) {
return Status::Error(400, "Base language pack ID must be encoded in UTF-8");
}
if (!clean_input_string(language_pack_info->name_)) {
return Status::Error(400, "Language pack name must be encoded in UTF-8");
}
if (!clean_input_string(language_pack_info->native_name_)) {
return Status::Error(400, "Language pack native name must be encoded in UTF-8");
}
if (!clean_input_string(language_pack_info->plural_code_)) {
return Status::Error(400, "Language pack plural code must be encoded in UTF-8");
}
if (!clean_input_string(language_pack_info->translation_url_)) {
return Status::Error(400, "Language pack translation URL must be encoded in UTF-8");
}
if (language_pack_info->total_string_count_ < 0) {
language_pack_info->total_string_count_ = 0;
}
if (language_pack_info->translated_string_count_ < 0) {
language_pack_info->translated_string_count_ = 0;
}
if (!check_language_code_name(language_pack_info->id_)) {
return Status::Error(400, "Language pack ID must contain only letters, digits and hyphen");
}
if (is_custom_language_code(language_pack_info->id_)) {
language_pack_info->base_language_pack_id_.clear();
language_pack_info->is_official_ = false;
language_pack_info->is_rtl_ = false;
language_pack_info->is_beta_ = false;
language_pack_info->translation_url_.clear();
}
LanguageInfo info;
info.name_ = std::move(language_pack_info->name_);
info.native_name_ = std::move(language_pack_info->native_name_);
info.base_language_code_ = std::move(language_pack_info->base_language_pack_id_);
info.plural_code_ = std::move(language_pack_info->plural_code_);
info.is_official_ = language_pack_info->is_official_;
info.is_rtl_ = language_pack_info->is_rtl_;
info.is_beta_ = language_pack_info->is_beta_;
info.is_from_database_ = true;
info.total_string_count_ = language_pack_info->total_string_count_;
info.translated_string_count_ = language_pack_info->translated_string_count_;
info.translation_url_ = std::move(language_pack_info->translation_url_);
return std::move(info);
}
void LanguagePackManager::set_custom_language(td_api::object_ptr<td_api::languagePackInfo> &&language_pack_info,
vector<tl_object_ptr<td_api::languagePackString>> strings,
Promise<Unit> &&promise) {
if (language_pack_.empty()) {
return promise.set_error(Status::Error(400, "Option \"localization_target\" needs to be set first"));
}
TRY_RESULT_PROMISE(promise, language_info, get_language_info(language_pack_info.get()));
auto language_code = std::move(language_pack_info->id_);
if (!is_custom_language_code(language_code)) {
return promise.set_error(Status::Error(400, "Custom language pack ID must begin with 'X'"));
}
vector<tl_object_ptr<telegram_api::LangPackString>> server_strings;
for (auto &str : strings) {
TRY_RESULT_PROMISE(promise, result, convert_to_telegram_api(std::move(str)));
server_strings.push_back(std::move(result));
}
// TODO atomic replace
do_delete_language(language_code).ensure();
on_get_language_pack_strings(language_pack_, language_code, 1, false, vector<string>(), std::move(server_strings),
Auto());
std::lock_guard<std::mutex> packs_lock(database_->mutex_);
auto pack_it = database_->language_packs_.find(language_pack_);
CHECK(pack_it != database_->language_packs_.end());
LanguagePack *pack = pack_it->second.get();
std::lock_guard<std::mutex> pack_lock(pack->mutex_);
auto &info = pack->custom_language_pack_infos_[language_code];
info = std::move(language_info);
if (!pack->pack_kv_.empty()) {
pack->pack_kv_.set(language_code, get_language_info_string(info));
}
promise.set_value(Unit());
}
void LanguagePackManager::edit_custom_language_info(td_api::object_ptr<td_api::languagePackInfo> &&language_pack_info,
Promise<Unit> &&promise) {
if (language_pack_.empty()) {
return promise.set_error(Status::Error(400, "Option \"localization_target\" needs to be set first"));
}
TRY_RESULT_PROMISE(promise, language_info, get_language_info(language_pack_info.get()));
auto language_code = std::move(language_pack_info->id_);
if (!is_custom_language_code(language_code)) {
return promise.set_error(Status::Error(400, "Custom language pack ID must begin with 'X'"));
}
std::lock_guard<std::mutex> packs_lock(database_->mutex_);
auto pack_it = database_->language_packs_.find(language_pack_);
CHECK(pack_it != database_->language_packs_.end());
LanguagePack *pack = pack_it->second.get();
std::lock_guard<std::mutex> pack_lock(pack->mutex_);
auto language_info_it = pack->custom_language_pack_infos_.find(language_code);
if (language_info_it == pack->custom_language_pack_infos_.end()) {
return promise.set_error(Status::Error(400, "Custom language pack is not found"));
}
auto &info = language_info_it->second;
info = std::move(language_info);
if (!pack->pack_kv_.empty()) {
pack->pack_kv_.set(language_code, get_language_info_string(info));
}
promise.set_value(Unit());
}
void LanguagePackManager::set_custom_language_string(string language_code,
tl_object_ptr<td_api::languagePackString> str,
Promise<Unit> &&promise) {
if (language_pack_.empty()) {
return promise.set_error(Status::Error(400, "Option \"localization_target\" needs to be set first"));
}
if (!check_language_code_name(language_code)) {
return promise.set_error(Status::Error(400, "Language pack ID must contain only letters, digits and hyphen"));
}
if (!is_custom_language_code(language_code)) {
return promise.set_error(Status::Error(400, "Custom language pack ID must begin with 'X'"));
}
if (get_language(database_, language_pack_, language_code) == nullptr) {
return promise.set_error(Status::Error(400, "Custom language pack not found"));
}
if (str == nullptr) {
return promise.set_error(Status::Error(400, "Language pack strings must not be null"));
}
vector<string> keys{str->key_};
TRY_RESULT_PROMISE(promise, lang_pack_string, convert_to_telegram_api(std::move(str)));
vector<tl_object_ptr<telegram_api::LangPackString>> server_strings;
server_strings.push_back(std::move(lang_pack_string));
on_get_language_pack_strings(language_pack_, language_code, 1, true, std::move(keys), std::move(server_strings),
Auto());
promise.set_value(Unit());
}
void LanguagePackManager::delete_language(string language_code, Promise<Unit> &&promise) {
if (language_pack_.empty()) {
return promise.set_error(Status::Error(400, "Option \"localization_target\" needs to be set first"));
}
if (!check_language_code_name(language_code)) {
return promise.set_error(Status::Error(400, "Language pack ID is invalid"));
}
if (language_code.empty()) {
return promise.set_error(Status::Error(400, "Language pack ID is empty"));
}
if (language_code_ == language_code || base_language_code_ == language_code) {
return promise.set_error(Status::Error(400, "Currently used language pack can't be deleted"));
}
auto status = do_delete_language(language_code);
if (status.is_error()) {
promise.set_error(std::move(status));
} else {
promise.set_value(Unit());
}
}
Status LanguagePackManager::do_delete_language(const string &language_code) {
add_language(database_, language_pack_, language_code);
std::lock_guard<std::mutex> packs_lock(database_->mutex_);
auto pack_it = database_->language_packs_.find(language_pack_);
CHECK(pack_it != database_->language_packs_.end());
LanguagePack *pack = pack_it->second.get();
std::lock_guard<std::mutex> languages_lock(pack->mutex_);
auto code_it = pack->languages_.find(language_code);
CHECK(code_it != pack->languages_.end());
auto language = code_it->second.get();
if (language->has_get_difference_query_) {
return Status::Error(400, "Language pack can't be deleted now, try again later");
}
if (!language->kv_.empty()) {
language->kv_.drop().ignore();
CHECK(language->kv_.empty());
CHECK(!database_->database_.empty());
language->kv_
.init_with_connection(database_->database_.clone(), get_database_table_name(language_pack_, language_code))
.ensure();
}
std::lock_guard<std::mutex> language_lock(language->mutex_);
language->version_ = -1;
language->key_count_ = load_database_language_key_count(&language->kv_);
language->is_full_ = false;
language->ordinary_strings_.clear();
language->pluralized_strings_.clear();
language->deleted_strings_.clear();
if (!pack->pack_kv_.empty()) {
pack->pack_kv_.erase(language_code);
}
pack->custom_language_pack_infos_.erase(language_code);
return Status::OK();
}
void LanguagePackManager::on_result(NetQueryPtr query) {
auto token = get_link_token();
container_.extract(token).set_value(std::move(query));
}
void LanguagePackManager::send_with_promise(NetQueryPtr query, Promise<NetQueryPtr> promise) {
auto id = container_.create(std::move(promise));
G()->net_query_dispatcher().dispatch_with_callback(std::move(query), actor_shared(this, id));
}
void LanguagePackManager::hangup() {
container_.for_each(
[](auto id, Promise<NetQueryPtr> &promise) { promise.set_error(Global::request_aborted_error()); });
stop();
}
int32 LanguagePackManager::manager_count_ = 0;
std::mutex LanguagePackManager::language_database_mutex_;
std::unordered_map<string, unique_ptr<LanguagePackManager::LanguageDatabase>, Hash<string>>
LanguagePackManager::language_databases_;
} // namespace td
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