tdlight-team/tdlight
tdlight-team/tdlight
1
1
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
5379348651
tdlight/td/telegram/LanguagePackManager.cpp
levlam d8f66f8a8e Minor fixes. 
GitOrigin-RevId: 01b7c4015a8a4ee30c06b977363889d38a65bfd4
2018-08-26 11:08:45 +03:00

1198 lines
48 KiB
C++
Raw Blame History

//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2018
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#include "td/telegram/LanguagePackManager.h"
#include "td/telegram/ConfigShared.h"
#include "td/telegram/Global.h"
#include "td/telegram/logevent/LogEvent.h"
#include "td/telegram/misc.h"
#include "td/telegram/net/NetQueryDispatcher.h"
#include "td/telegram/Td.h"
#include "td/telegram/td_api.h"
#include "td/telegram/td_api.hpp"
#include "td/telegram/telegram_api.h"
#include "td/db/SqliteDb.h"
#include "td/db/SqliteKeyValue.h"
#include "td/utils/logging.h"
#include "td/utils/misc.h"
#include "td/utils/Status.h"
#include <atomic>
#include <limits>
#include <unordered_set>
#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_;
};
struct LanguagePackManager::Language {
std::mutex mutex_;
std::atomic<int32> version_{-1};
std::atomic<int32> key_count_{0};
bool is_full_ = false;
bool was_loaded_full_ = false;
bool has_get_difference_query_ = false;
std::unordered_map<string, string> ordinary_strings_;
std::unordered_map<string, PluralizedString> pluralized_strings_;
std::unordered_set<string> deleted_strings_;
SqliteKeyValue kv_; // usages should be guarded by database_->mutex_
};
struct LanguagePackManager::LanguageInfo {
string name;
string native_name;
};
struct LanguagePackManager::LanguagePack {
std::mutex mutex_;
SqliteKeyValue pack_kv_; // usages should be guarded by database_->mutex_
std::unordered_map<string, LanguageInfo> language_infos_;
std::unordered_map<string, std::unique_ptr<Language>> languages_;
};
struct LanguagePackManager::LanguageDatabase {
std::mutex mutex_;
string path_;
SqliteDb database_;
std::unordered_map<string, std::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, DbKey::empty()));
TRY_STATUS(database.exec("PRAGMA synchronous=NORMAL"));
TRY_STATUS(database.exec("PRAGMA temp_store=MEMORY"));
TRY_STATUS(database.exec("PRAGMA encoding=\"UTF-8\""));
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 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);
}
LanguagePackManager::LanguageDatabase *LanguagePackManager::add_language_database(const 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 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();
}
void LanguagePackManager::start_up() {
std::lock_guard<std::mutex> lock(language_database_mutex_);
manager_count_++;
language_pack_ = G()->shared_config().get_option_string("language_pack");
language_code_ = G()->shared_config().get_option_string("language_code");
CHECK(check_language_pack_name(language_pack_));
CHECK(check_language_code_name(language_code_));
database_ = add_language_database(G()->shared_config().get_option_string("language_database_path"));
if (!language_pack_.empty() && !language_code_.empty()) {
auto language = add_language(database_, language_pack_, language_code_);
if (!is_custom_language_code(language_code_) && language->version_ == -1) {
get_language_pack_strings(language_code_, vector<string>(), Auto());
}
LOG(INFO) << "Use language pack \"" << language_pack_ << "\" with language \"" << language_code_ << "\" of version "
<< language->version_.load() << " with database \"" << database_->path_ << '"';
}
}
void LanguagePackManager::tear_down() {
std::lock_guard<std::mutex> lock(language_database_mutex_);
manager_count_--;
if (manager_count_ == 0) {
// can't clear language packs, because the may be accessed later using synchronous requests
// LOG(INFO) << "Clear language packs";
// language_databases_.clear();
}
}
void LanguagePackManager::on_language_pack_changed() {
auto new_language_pack = G()->shared_config().get_option_string("language_pack");
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()->shared_config().get_option_string("language_code");
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(int32 new_version) {
if (is_custom_language_code(language_code_) || 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();
if (version == -1) {
get_language_pack_strings(language_code_, vector<string>(), Auto());
return;
}
auto new_language_pack_version =
new_version >= 0 ? new_version : G()->shared_config().get_option_integer("language_pack_version", -1);
if (new_language_pack_version <= version) {
return;
}
std::lock_guard<std::mutex> lock(language->mutex_);
if (language->has_get_difference_query_) {
return;
}
language->has_get_difference_query_ = true;
auto request_promise =
PromiseCreator::lambda([actor_id = actor_id(this), language_pack = language_pack_, language_code = 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));
return;
}
auto result = r_result.move_as_ok();
LOG(INFO) << "Receive language pack difference for language " << 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_ != 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(create_storer(telegram_api::langpack_getDifference(version))),
std::move(request_promise));
}
void LanguagePackManager::on_update_language_pack(tl_object_ptr<telegram_api::langPackDifference> difference) {
LOG(INFO) << "Receive update language pack difference for language " << difference->lang_code_ << " from version "
<< difference->from_version_ << " with version " << difference->version_ << " of size "
<< difference->strings_.size();
if (language_pack_.empty()) {
LOG(WARNING) << "Ignore difference for language " << difference->lang_code_ << ", because language pack was unset";
return;
}
if (difference->lang_code_ != language_code_) {
LOG(WARNING) << "Ignore difference for language " << difference->lang_code_;
return;
}
if (is_custom_language_code(difference->lang_code_) || difference->lang_code_.empty()) {
LOG(ERROR) << "Ignore difference for language " << difference->lang_code_;
return;
}
Language *language = get_language(database_, language_pack_, language_code_);
int32 version = language == nullptr ? static_cast<int32>(-1) : language->version_.load();
if (difference->version_ <= version) {
LOG(INFO) << "Skip applying already applied updates";
return;
}
if (version == -1 || version < difference->from_version_) {
LOG(INFO) << "Can't apply difference";
return on_language_pack_version_changed(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()->shared_config().set_option_empty("language_pack_version");
on_language_pack_version_changed(std::numeric_limits<int32>::max());
}
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();
for (auto &lang : pack->pack_kv_.get_all()) {
auto names = split(lang.second, '\x00');
auto &info = pack->language_infos_[lang.first];
info.name = std::move(names.first);
info.native_name = std::move(names.second);
}
}
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_);
}
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, string &value) {
CHECK(is_valid_key(key));
if (value.empty() || value == "3") {
if (!language->is_full_) {
language->deleted_strings_.insert(key);
}
return;
}
if (value[0] == '1') {
language->ordinary_strings_.emplace(key, value.substr(1));
return;
}
CHECK(value[0] == '2');
auto all = full_split(Slice(value).substr(1), '\x00');
CHECK(all.size() == 6);
language->pluralized_strings_.emplace(
key, PluralizedString{all[0].str(), all[1].str(), all[2].str(), all[3].str(), all[4].str(), all[5].str()});
}
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 is full in memory";
return true;
}
if (language->kv_.empty()) {
LOG(DEBUG) << "The language has no database";
return false;
}
LOG(DEBUG) << "Begin to load a language from database";
if (keys.empty()) {
if (language->version_ == -1 && language->was_loaded_full_) {
LOG(DEBUG) << "The language 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 std::pair<string, string> &str) {
return td_api::make_object<td_api::languagePackString>(str.first, get_language_pack_string_value_object(str.second));
}
td_api::object_ptr<td_api::languagePackString> LanguagePackManager::get_language_pack_string_object(
const std::pair<string, PluralizedString> &str) {
return td_api::make_object<td_api::languagePackString>(str.first, get_language_pack_string_value_object(str.second));
}
td_api::object_ptr<td_api::languagePackString> LanguagePackManager::get_language_pack_string_object(const string &str) {
return td_api::make_object<td_api::languagePackString>(str, 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));
}
for (auto &str : language->pluralized_strings_) {
strings.push_back(get_language_pack_string_object(str));
}
} 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(Promise<td_api::object_ptr<td_api::languagePack>> promise) {
if (language_pack_.empty()) {
return promise.set_error(Status::Error(400, "Option \"language_pack\" needs to be set first"));
}
auto request_promise = PromiseCreator::lambda([actor_id = actor_id(this), language_pack = language_pack_,
promise = std::move(promise)](Result<NetQueryPtr> r_query) mutable {
auto r_result = fetch_result<telegram_api::langpack_getLanguages>(std::move(r_query));
if (r_result.is_error()) {
return promise.set_error(r_result.move_as_error());
}
send_closure(actor_id, &LanguagePackManager::on_get_languages, r_result.move_as_ok(), std::move(language_pack),
std::move(promise));
});
send_with_promise(G()->net_query_creator().create(create_storer(telegram_api::langpack_getLanguages(language_pack_))),
std::move(request_promise));
}
void LanguagePackManager::on_get_languages(vector<tl_object_ptr<telegram_api::langPackLanguage>> languages,
string language_pack,
Promise<td_api::object_ptr<td_api::languagePack>> promise) {
auto results = make_tl_object<td_api::languagePack>();
{
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();
for (auto &info : pack->language_infos_) {
results->languages_.push_back(
make_tl_object<td_api::languageInfo>(info.first, info.second.name, info.second.native_name, 0));
}
}
}
for (auto &language : languages) {
results->languages_.push_back(
make_tl_object<td_api::languageInfo>(language->lang_code_, language->name_, language->native_name_, 0));
}
for (auto &language_info : results->languages_) {
if (!check_language_code_name(language_info->code_)) {
LOG(ERROR) << "Receive unsupported language code " << language_info->code_ << " from server";
continue;
}
auto language = add_language(database_, language_pack, language_info->code_);
language_info->local_string_count_ = language->key_count_;
}
promise.set_value(std::move(results));
}
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 code is invalid"));
}
if (language_pack_.empty()) {
return promise.set_error(Status::Error(400, "Option \"language_pack\" 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, language_pack, 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 {
auto r_result = fetch_result<telegram_api::langpack_getLangPack>(std::move(r_query));
if (r_result.is_error()) {
return promise.set_error(r_result.move_as_error());
}
auto result = r_result.move_as_ok();
LOG(INFO) << "Receive language pack for language " << 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 lang 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(
create_storer(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 {
auto r_result = fetch_result<telegram_api::langpack_getStrings>(std::move(r_query));
if (r_result.is_error()) {
return promise.set_error(r_result.move_as_error());
}
send_closure(actor_id, &LanguagePackManager::on_get_language_pack_strings, std::move(language_pack),
std::move(language_code), -1, false, std::move(keys), r_result.move_as_ok(), std::move(promise));
});
send_with_promise(G()->net_query_creator().create(create_storer(
telegram_api::langpack_getStrings(language_pack_, language_code, std::move(keys)))),
std::move(request_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()) {
for (auto &promise : promises) {
promise.set_error(r_strings.error().clone());
}
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(INFO) << "Set last non-empty promise";
promise.set_value(std::move(strings));
} else {
LOG(INFO) << "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(INFO) << "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, "Language pack is invalid");
}
if (!check_language_code_name(language_code) || language_code.empty()) {
return td_api::make_object<td_api::error>(400, "Language code 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 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 version doesn't increased from " << old_version;
return;
}
kv->begin_transaction().ensure();
for (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 string with key " << str.first << " to database";
}
if (old_version != new_version) {
LOG(DEBUG) << "Set language version in database to " << new_version;
kv->set("!version", to_string(new_version));
}
if (new_key_count != -1) {
LOG(DEBUG) << "Set language 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()) {
vector<td_api::object_ptr<td_api::languagePackString>> strings;
if (language->version_ < version && !(is_diff && language->version_ == -1)) {
LOG(INFO) << "Set language " << 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 = static_cast<telegram_api::langPackString *>(result.get());
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));
}
database_strings.emplace_back(str->key_, PSTRING() << '1' << it->second);
break;
}
case telegram_api::langPackStringPluralized::ID: {
auto str = static_cast<const telegram_api::langPackStringPluralized *>(result.get());
PluralizedString value{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));
}
database_strings.emplace_back(
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 = static_cast<const telegram_api::langPackStringDeleted *>(result.get());
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(std::move(str->key_));
if (is_diff) {
strings.push_back(get_language_pack_string_object(str->key_));
}
database_strings.emplace_back(str->key_, "3");
break;
}
default:
UNREACHABLE();
break;
}
}
if (!language->is_full_) {
for (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 (is_diff) {
send_closure(
G()->td(), &Td::send_update,
td_api::make_object<td_api::updateLanguagePackStrings>(language_pack, language_code, std::move(strings)));
}
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_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);
std::lock_guard<std::mutex> lock(language->mutex_);
if (language->has_get_difference_query_) {
language->has_get_difference_query_ = false;
is_version_changed = true;
}
}
if (is_version_changed && language_pack == language_pack_ && language_code == language_code_) {
send_closure_later(actor_id(this), &LanguagePackManager::on_language_pack_version_changed, -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) {
Language *language = get_language(database_, language_pack, language_code);
CHECK(language != nullptr);
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_) {
send_closure_later(actor_id(this), &LanguagePackManager::on_language_pack_version_changed, -1);
}
}
}
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 strings must not be null");
}
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, "Strings 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, "Strings 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;
}
}
void LanguagePackManager::set_custom_language(string language_code, string language_name, string language_native_name,
vector<tl_object_ptr<td_api::languagePackString>> strings,
Promise<Unit> &&promise) {
if (language_pack_.empty()) {
return promise.set_error(Status::Error(400, "Option \"language_pack\" needs to be set first"));
}
if (!check_language_code_name(language_code)) {
return promise.set_error(Status::Error(400, "Language code name must contain only letters and hyphen"));
}
if (!is_custom_language_code(language_code)) {
return promise.set_error(Status::Error(400, "Custom language code must begin with 'X'"));
}
vector<tl_object_ptr<telegram_api::LangPackString>> server_strings;
for (auto &str : strings) {
auto r_result = convert_to_telegram_api(std::move(str));
if (r_result.is_error()) {
return promise.set_error(r_result.move_as_error());
}
server_strings.push_back(r_result.move_as_ok());
}
// 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();
auto &info = pack->language_infos_[language_code];
info.name = language_name;
info.native_name = language_native_name;
if (!pack->pack_kv_.empty()) {
pack->pack_kv_.set(language_code, PSLICE() << language_name << '\x00' << language_native_name);
}
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 \"language_pack\" needs to be set first"));
}
if (!check_language_code_name(language_code)) {
return promise.set_error(Status::Error(400, "Language code name must contain only letters and hyphen"));
}
if (!is_custom_language_code(language_code)) {
return promise.set_error(Status::Error(400, "Custom language code must begin with 'X'"));
}
if (get_language(database_, language_pack_, language_code) == nullptr) {
return promise.set_error(Status::Error(400, "Custom language not found"));
}
if (str == nullptr) {
return promise.set_error(Status::Error(400, "Language strings must not be null"));
}
vector<string> keys{str->key_};
auto r_str = convert_to_telegram_api(std::move(str));
if (r_str.is_error()) {
return promise.set_error(r_str.move_as_error());
}
vector<tl_object_ptr<telegram_api::LangPackString>> server_strings;
server_strings.push_back(r_str.move_as_ok());
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 \"language_pack\" needs to be set first"));
}
if (!check_language_code_name(language_code)) {
return promise.set_error(Status::Error(400, "Language code name is invalid"));
}
if (language_code.empty()) {
return promise.set_error(Status::Error(400, "Language code name is empty"));
}
if (language_code_ == language_code) {
return promise.set_error(Status::Error(400, "Currently used language 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(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 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 (is_custom_language_code(language_code)) {
if (!pack->pack_kv_.empty()) {
pack->pack_kv_.erase(language_code);
}
pack->language_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(Status::Error(500, "Request aborted")); });
stop();
}
int32 LanguagePackManager::manager_count_ = 0;
std::mutex LanguagePackManager::language_database_mutex_;
std::unordered_map<string, std::unique_ptr<LanguagePackManager::LanguageDatabase>>
LanguagePackManager::language_databases_;
} // namespace td
Reference in New Issue View Git Blame Copy Permalink