563 lines
22 KiB
C++
563 lines
22 KiB
C++
//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2020
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#include "td/telegram/PrivacyManager.h"
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#include "td/telegram/td_api.h"
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#include "td/telegram/telegram_api.h"
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#include "td/telegram/ChannelId.h"
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#include "td/telegram/ChatId.h"
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#include "td/telegram/ContactsManager.h"
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#include "td/telegram/DialogId.h"
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#include "td/telegram/Global.h"
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#include "td/telegram/MessagesManager.h"
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#include "td/telegram/net/NetQueryCreator.h"
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#include "td/telegram/net/NetQueryDispatcher.h"
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#include "td/telegram/Td.h"
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#include "td/utils/logging.h"
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#include "td/utils/misc.h"
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#include <algorithm>
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#include <iterator>
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namespace td {
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Result<PrivacyManager::UserPrivacySetting> PrivacyManager::UserPrivacySetting::from_td_api(
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tl_object_ptr<td_api::UserPrivacySetting> key) {
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if (!key) {
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return Status::Error(5, "UserPrivacySetting must be non-empty");
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}
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return UserPrivacySetting(*key);
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}
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PrivacyManager::UserPrivacySetting::UserPrivacySetting(const telegram_api::PrivacyKey &key) {
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switch (key.get_id()) {
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case telegram_api::privacyKeyStatusTimestamp::ID:
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type_ = Type::UserStatus;
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break;
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case telegram_api::privacyKeyChatInvite::ID:
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type_ = Type::ChatInvite;
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break;
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case telegram_api::privacyKeyPhoneCall::ID:
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type_ = Type::Call;
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break;
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case telegram_api::privacyKeyPhoneP2P::ID:
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type_ = Type::PeerToPeerCall;
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break;
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case telegram_api::privacyKeyForwards::ID:
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type_ = Type::LinkInForwardedMessages;
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break;
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case telegram_api::privacyKeyProfilePhoto::ID:
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type_ = Type::UserProfilePhoto;
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break;
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case telegram_api::privacyKeyPhoneNumber::ID:
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type_ = Type::UserPhoneNumber;
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break;
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case telegram_api::privacyKeyAddedByPhone::ID:
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type_ = Type::FindByPhoneNumber;
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break;
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default:
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UNREACHABLE();
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type_ = Type::UserStatus;
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}
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}
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tl_object_ptr<td_api::UserPrivacySetting> PrivacyManager::UserPrivacySetting::as_td_api() const {
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switch (type_) {
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case Type::UserStatus:
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return make_tl_object<td_api::userPrivacySettingShowStatus>();
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case Type::ChatInvite:
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return make_tl_object<td_api::userPrivacySettingAllowChatInvites>();
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case Type::Call:
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return make_tl_object<td_api::userPrivacySettingAllowCalls>();
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case Type::PeerToPeerCall:
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return make_tl_object<td_api::userPrivacySettingAllowPeerToPeerCalls>();
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case Type::LinkInForwardedMessages:
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return make_tl_object<td_api::userPrivacySettingShowLinkInForwardedMessages>();
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case Type::UserProfilePhoto:
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return make_tl_object<td_api::userPrivacySettingShowProfilePhoto>();
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case Type::UserPhoneNumber:
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return make_tl_object<td_api::userPrivacySettingShowPhoneNumber>();
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case Type::FindByPhoneNumber:
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return make_tl_object<td_api::userPrivacySettingAllowFindingByPhoneNumber>();
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default:
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UNREACHABLE();
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return nullptr;
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}
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}
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tl_object_ptr<telegram_api::InputPrivacyKey> PrivacyManager::UserPrivacySetting::as_telegram_api() const {
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switch (type_) {
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case Type::UserStatus:
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return make_tl_object<telegram_api::inputPrivacyKeyStatusTimestamp>();
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case Type::ChatInvite:
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return make_tl_object<telegram_api::inputPrivacyKeyChatInvite>();
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case Type::Call:
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return make_tl_object<telegram_api::inputPrivacyKeyPhoneCall>();
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case Type::PeerToPeerCall:
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return make_tl_object<telegram_api::inputPrivacyKeyPhoneP2P>();
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case Type::LinkInForwardedMessages:
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return make_tl_object<telegram_api::inputPrivacyKeyForwards>();
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case Type::UserProfilePhoto:
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return make_tl_object<telegram_api::inputPrivacyKeyProfilePhoto>();
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case Type::UserPhoneNumber:
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return make_tl_object<telegram_api::inputPrivacyKeyPhoneNumber>();
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case Type::FindByPhoneNumber:
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return make_tl_object<telegram_api::inputPrivacyKeyAddedByPhone>();
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default:
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UNREACHABLE();
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return nullptr;
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}
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}
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PrivacyManager::UserPrivacySetting::UserPrivacySetting(const td_api::UserPrivacySetting &key) {
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switch (key.get_id()) {
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case td_api::userPrivacySettingShowStatus::ID:
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type_ = Type::UserStatus;
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break;
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case td_api::userPrivacySettingAllowChatInvites::ID:
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type_ = Type::ChatInvite;
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break;
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case td_api::userPrivacySettingAllowCalls::ID:
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type_ = Type::Call;
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break;
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case td_api::userPrivacySettingAllowPeerToPeerCalls::ID:
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type_ = Type::PeerToPeerCall;
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break;
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case td_api::userPrivacySettingShowLinkInForwardedMessages::ID:
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type_ = Type::LinkInForwardedMessages;
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break;
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case td_api::userPrivacySettingShowProfilePhoto::ID:
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type_ = Type::UserProfilePhoto;
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break;
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case td_api::userPrivacySettingShowPhoneNumber::ID:
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type_ = Type::UserPhoneNumber;
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break;
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case td_api::userPrivacySettingAllowFindingByPhoneNumber::ID:
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type_ = Type::FindByPhoneNumber;
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break;
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default:
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UNREACHABLE();
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type_ = Type::UserStatus;
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}
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}
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void PrivacyManager::UserPrivacySettingRule::set_chat_ids(const vector<int64> &dialog_ids) {
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chat_ids_.clear();
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auto td = G()->td().get_actor_unsafe();
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for (auto dialog_id_int : dialog_ids) {
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DialogId dialog_id(dialog_id_int);
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if (!td->messages_manager_->have_dialog_force(dialog_id)) {
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LOG(ERROR) << "Ignore not found " << dialog_id;
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continue;
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}
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switch (dialog_id.get_type()) {
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case DialogType::Chat:
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chat_ids_.push_back(dialog_id.get_chat_id().get());
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break;
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case DialogType::Channel: {
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auto channel_id = dialog_id.get_channel_id();
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if (td->contacts_manager_->get_channel_type(channel_id) != ChannelType::Megagroup) {
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LOG(ERROR) << "Ignore broadcast " << channel_id;
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break;
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}
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chat_ids_.push_back(channel_id.get());
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break;
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}
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default:
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LOG(ERROR) << "Ignore " << dialog_id;
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}
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}
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}
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PrivacyManager::UserPrivacySettingRule::UserPrivacySettingRule(const td_api::UserPrivacySettingRule &rule) {
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switch (rule.get_id()) {
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case td_api::userPrivacySettingRuleAllowContacts::ID:
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type_ = Type::AllowContacts;
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break;
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case td_api::userPrivacySettingRuleAllowAll::ID:
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type_ = Type::AllowAll;
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break;
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case td_api::userPrivacySettingRuleAllowUsers::ID:
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type_ = Type::AllowUsers;
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user_ids_ = static_cast<const td_api::userPrivacySettingRuleAllowUsers &>(rule).user_ids_;
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break;
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case td_api::userPrivacySettingRuleAllowChatMembers::ID:
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type_ = Type::AllowChatParticipants;
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set_chat_ids(static_cast<const td_api::userPrivacySettingRuleAllowChatMembers &>(rule).chat_ids_);
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break;
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case td_api::userPrivacySettingRuleRestrictContacts::ID:
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type_ = Type::RestrictContacts;
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break;
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case td_api::userPrivacySettingRuleRestrictAll::ID:
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type_ = Type::RestrictAll;
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break;
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case td_api::userPrivacySettingRuleRestrictUsers::ID:
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type_ = Type::RestrictUsers;
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user_ids_ = static_cast<const td_api::userPrivacySettingRuleRestrictUsers &>(rule).user_ids_;
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break;
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case td_api::userPrivacySettingRuleRestrictChatMembers::ID:
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type_ = Type::RestrictChatParticipants;
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set_chat_ids(static_cast<const td_api::userPrivacySettingRuleRestrictChatMembers &>(rule).chat_ids_);
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break;
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default:
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UNREACHABLE();
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}
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}
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PrivacyManager::UserPrivacySettingRule::UserPrivacySettingRule(const telegram_api::PrivacyRule &rule) {
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switch (rule.get_id()) {
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case telegram_api::privacyValueAllowContacts::ID:
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type_ = Type::AllowContacts;
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break;
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case telegram_api::privacyValueAllowAll::ID:
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type_ = Type::AllowAll;
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break;
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case telegram_api::privacyValueAllowUsers::ID:
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type_ = Type::AllowUsers;
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user_ids_ = static_cast<const telegram_api::privacyValueAllowUsers &>(rule).users_;
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break;
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case telegram_api::privacyValueAllowChatParticipants::ID:
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type_ = Type::AllowChatParticipants;
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chat_ids_ = static_cast<const telegram_api::privacyValueAllowChatParticipants &>(rule).chats_;
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break;
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case telegram_api::privacyValueDisallowContacts::ID:
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type_ = Type::RestrictContacts;
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break;
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case telegram_api::privacyValueDisallowAll::ID:
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type_ = Type::RestrictAll;
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break;
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case telegram_api::privacyValueDisallowUsers::ID:
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type_ = Type::RestrictUsers;
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user_ids_ = static_cast<const telegram_api::privacyValueDisallowUsers &>(rule).users_;
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break;
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case telegram_api::privacyValueDisallowChatParticipants::ID:
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type_ = Type::RestrictChatParticipants;
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chat_ids_ = static_cast<const telegram_api::privacyValueDisallowChatParticipants &>(rule).chats_;
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break;
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default:
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UNREACHABLE();
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}
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}
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tl_object_ptr<td_api::UserPrivacySettingRule> PrivacyManager::UserPrivacySettingRule::as_td_api() const {
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switch (type_) {
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case Type::AllowContacts:
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return make_tl_object<td_api::userPrivacySettingRuleAllowContacts>();
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case Type::AllowAll:
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return make_tl_object<td_api::userPrivacySettingRuleAllowAll>();
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case Type::AllowUsers:
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return make_tl_object<td_api::userPrivacySettingRuleAllowUsers>(vector<int32>{user_ids_});
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case Type::AllowChatParticipants:
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return make_tl_object<td_api::userPrivacySettingRuleAllowChatMembers>(chat_ids_as_dialog_ids());
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case Type::RestrictContacts:
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return make_tl_object<td_api::userPrivacySettingRuleRestrictContacts>();
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case Type::RestrictAll:
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return make_tl_object<td_api::userPrivacySettingRuleRestrictAll>();
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case Type::RestrictUsers:
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return make_tl_object<td_api::userPrivacySettingRuleRestrictUsers>(vector<int32>{user_ids_});
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case Type::RestrictChatParticipants:
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return make_tl_object<td_api::userPrivacySettingRuleRestrictChatMembers>(chat_ids_as_dialog_ids());
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default:
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UNREACHABLE();
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}
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}
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tl_object_ptr<telegram_api::InputPrivacyRule> PrivacyManager::UserPrivacySettingRule::as_telegram_api() const {
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switch (type_) {
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case Type::AllowContacts:
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return make_tl_object<telegram_api::inputPrivacyValueAllowContacts>();
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case Type::AllowAll:
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return make_tl_object<telegram_api::inputPrivacyValueAllowAll>();
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case Type::AllowUsers:
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return make_tl_object<telegram_api::inputPrivacyValueAllowUsers>(user_ids_as_telegram_api());
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case Type::AllowChatParticipants:
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return make_tl_object<telegram_api::inputPrivacyValueAllowChatParticipants>(vector<int32>{chat_ids_});
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case Type::RestrictContacts:
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return make_tl_object<telegram_api::inputPrivacyValueDisallowContacts>();
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case Type::RestrictAll:
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return make_tl_object<telegram_api::inputPrivacyValueDisallowAll>();
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case Type::RestrictUsers:
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return make_tl_object<telegram_api::inputPrivacyValueDisallowUsers>(user_ids_as_telegram_api());
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case Type::RestrictChatParticipants:
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return make_tl_object<telegram_api::inputPrivacyValueDisallowChatParticipants>(vector<int32>{chat_ids_});
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default:
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UNREACHABLE();
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}
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}
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Result<PrivacyManager::UserPrivacySettingRule> PrivacyManager::UserPrivacySettingRule::from_telegram_api(
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tl_object_ptr<telegram_api::PrivacyRule> rule) {
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CHECK(rule != nullptr);
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UserPrivacySettingRule result(*rule);
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auto td = G()->td().get_actor_unsafe();
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for (auto user_id : result.user_ids_) {
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if (!td->contacts_manager_->have_user(UserId(user_id))) {
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return Status::Error(500, "Got inaccessible user from the server");
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}
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}
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for (auto chat_id_int : result.chat_ids_) {
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ChatId chat_id(chat_id_int);
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DialogId dialog_id(chat_id);
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if (!td->contacts_manager_->have_chat(chat_id)) {
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ChannelId channel_id(chat_id_int);
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dialog_id = DialogId(channel_id);
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if (!td->contacts_manager_->have_channel(channel_id)) {
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return Status::Error(500, "Got inaccessible chat from the server");
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}
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}
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td->messages_manager_->force_create_dialog(dialog_id, "UserPrivacySettingRule");
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}
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return result;
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}
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vector<tl_object_ptr<telegram_api::InputUser>> PrivacyManager::UserPrivacySettingRule::user_ids_as_telegram_api()
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const {
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vector<tl_object_ptr<telegram_api::InputUser>> result;
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for (auto user_id : user_ids_) {
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auto input_user = G()->td().get_actor_unsafe()->contacts_manager_->get_input_user(UserId(user_id));
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if (input_user != nullptr) {
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result.push_back(std::move(input_user));
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} else {
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LOG(ERROR) << "Have no access to " << user_id;
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}
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}
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return result;
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}
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vector<int64> PrivacyManager::UserPrivacySettingRule::chat_ids_as_dialog_ids() const {
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vector<int64> result;
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auto td = G()->td().get_actor_unsafe();
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for (auto chat_id_int : chat_ids_) {
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ChatId chat_id(chat_id_int);
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DialogId dialog_id(chat_id);
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if (!td->contacts_manager_->have_chat(chat_id)) {
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ChannelId channel_id(chat_id_int);
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dialog_id = DialogId(channel_id);
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CHECK(td->contacts_manager_->have_channel(channel_id));
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}
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CHECK(td->messages_manager_->have_dialog(dialog_id));
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result.push_back(dialog_id.get());
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}
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return result;
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}
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vector<int32> PrivacyManager::UserPrivacySettingRule::get_restricted_user_ids() const {
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if (type_ == Type::RestrictUsers) {
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return user_ids_;
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}
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return {};
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}
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Result<PrivacyManager::UserPrivacySettingRules> PrivacyManager::UserPrivacySettingRules::from_telegram_api(
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tl_object_ptr<telegram_api::account_privacyRules> rules) {
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G()->td().get_actor_unsafe()->contacts_manager_->on_get_users(std::move(rules->users_), "on get privacy rules");
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G()->td().get_actor_unsafe()->contacts_manager_->on_get_chats(std::move(rules->chats_), "on get privacy rules");
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return from_telegram_api(std::move(rules->rules_));
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}
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Result<PrivacyManager::UserPrivacySettingRules> PrivacyManager::UserPrivacySettingRules::from_telegram_api(
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vector<tl_object_ptr<telegram_api::PrivacyRule>> rules) {
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UserPrivacySettingRules result;
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for (auto &rule : rules) {
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TRY_RESULT(new_rule, UserPrivacySettingRule::from_telegram_api(std::move(rule)));
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result.rules_.push_back(new_rule);
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}
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if (!result.rules_.empty() &&
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result.rules_.back().as_td_api()->get_id() == td_api::userPrivacySettingRuleRestrictAll::ID) {
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result.rules_.pop_back();
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}
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return result;
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}
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Result<PrivacyManager::UserPrivacySettingRules> PrivacyManager::UserPrivacySettingRules::from_td_api(
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tl_object_ptr<td_api::userPrivacySettingRules> rules) {
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if (!rules) {
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return Status::Error(5, "UserPrivacySettingRules must be non-empty");
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}
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UserPrivacySettingRules result;
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for (auto &rule : rules->rules_) {
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if (!rule) {
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return Status::Error(5, "UserPrivacySettingRule must be non-empty");
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}
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result.rules_.emplace_back(*rule);
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}
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return result;
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}
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tl_object_ptr<td_api::userPrivacySettingRules> PrivacyManager::UserPrivacySettingRules::as_td_api() const {
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return make_tl_object<td_api::userPrivacySettingRules>(
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transform(rules_, [](const auto &rule) { return rule.as_td_api(); }));
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}
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vector<tl_object_ptr<telegram_api::InputPrivacyRule>> PrivacyManager::UserPrivacySettingRules::as_telegram_api() const {
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auto result = transform(rules_, [](const auto &rule) { return rule.as_telegram_api(); });
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if (!result.empty() && result.back()->get_id() == telegram_api::inputPrivacyValueDisallowAll::ID) {
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result.pop_back();
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}
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return result;
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}
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vector<int32> PrivacyManager::UserPrivacySettingRules::get_restricted_user_ids() const {
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vector<int32> result;
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for (auto &rule : rules_) {
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combine(result, rule.get_restricted_user_ids());
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}
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std::sort(result.begin(), result.end());
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result.erase(std::unique(result.begin(), result.end()), result.end());
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return result;
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}
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void PrivacyManager::get_privacy(tl_object_ptr<td_api::UserPrivacySetting> key,
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Promise<tl_object_ptr<td_api::userPrivacySettingRules>> promise) {
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auto r_user_privacy_setting = UserPrivacySetting::from_td_api(std::move(key));
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if (r_user_privacy_setting.is_error()) {
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return promise.set_error(r_user_privacy_setting.move_as_error());
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}
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auto user_privacy_setting = r_user_privacy_setting.move_as_ok();
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auto &info = get_info(user_privacy_setting);
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if (info.is_synchronized) {
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return promise.set_value(info.rules.as_td_api());
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}
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info.get_promises.push_back(std::move(promise));
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if (info.get_promises.size() > 1u) {
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// query has already been sent, just wait for the result
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return;
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}
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auto net_query =
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G()->net_query_creator().create(telegram_api::account_getPrivacy(user_privacy_setting.as_telegram_api()));
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send_with_promise(std::move(net_query),
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PromiseCreator::lambda([this, user_privacy_setting](Result<NetQueryPtr> x_net_query) {
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on_get_result(user_privacy_setting, [&]() -> Result<UserPrivacySettingRules> {
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TRY_RESULT(net_query, std::move(x_net_query));
|
|
TRY_RESULT(rules, fetch_result<telegram_api::account_getPrivacy>(std::move(net_query)));
|
|
LOG(INFO) << "Receive " << to_string(rules);
|
|
return UserPrivacySettingRules::from_telegram_api(std::move(rules));
|
|
}());
|
|
}));
|
|
}
|
|
|
|
void PrivacyManager::set_privacy(tl_object_ptr<td_api::UserPrivacySetting> key,
|
|
tl_object_ptr<td_api::userPrivacySettingRules> rules, Promise<Unit> promise) {
|
|
auto r_user_privacy_setting = UserPrivacySetting::from_td_api(std::move(key));
|
|
if (r_user_privacy_setting.is_error()) {
|
|
return promise.set_error(r_user_privacy_setting.move_as_error());
|
|
}
|
|
auto user_privacy_setting = r_user_privacy_setting.move_as_ok();
|
|
|
|
auto r_privacy_rules = UserPrivacySettingRules::from_td_api(std::move(rules));
|
|
if (r_privacy_rules.is_error()) {
|
|
return promise.set_error(r_privacy_rules.move_as_error());
|
|
}
|
|
auto privacy_rules = r_privacy_rules.move_as_ok();
|
|
|
|
auto &info = get_info(user_privacy_setting);
|
|
if (info.has_set_query) {
|
|
// TODO cancel previous query
|
|
return promise.set_error(Status::Error(5, "Another set_privacy query is active"));
|
|
}
|
|
auto net_query = G()->net_query_creator().create(
|
|
telegram_api::account_setPrivacy(user_privacy_setting.as_telegram_api(), privacy_rules.as_telegram_api()));
|
|
|
|
info.has_set_query = true;
|
|
send_with_promise(std::move(net_query),
|
|
PromiseCreator::lambda([this, user_privacy_setting,
|
|
promise = std::move(promise)](Result<NetQueryPtr> x_net_query) mutable {
|
|
promise.set_result([&]() -> Result<Unit> {
|
|
get_info(user_privacy_setting).has_set_query = false;
|
|
TRY_RESULT(net_query, std::move(x_net_query));
|
|
TRY_RESULT(rules, fetch_result<telegram_api::account_setPrivacy>(std::move(net_query)));
|
|
LOG(INFO) << "Receive " << to_string(rules);
|
|
TRY_RESULT(privacy_rules, UserPrivacySettingRules::from_telegram_api(std::move(rules)));
|
|
do_update_privacy(user_privacy_setting, std::move(privacy_rules), true);
|
|
return Unit();
|
|
}());
|
|
}));
|
|
}
|
|
|
|
void PrivacyManager::update_privacy(tl_object_ptr<telegram_api::updatePrivacy> update) {
|
|
CHECK(update != nullptr);
|
|
CHECK(update->key_ != nullptr);
|
|
UserPrivacySetting user_privacy_setting(*update->key_);
|
|
auto r_privacy_rules = UserPrivacySettingRules::from_telegram_api(std::move(update->rules_));
|
|
if (r_privacy_rules.is_error()) {
|
|
LOG(INFO) << "Skip updatePrivacy: " << r_privacy_rules.error().message();
|
|
auto &info = get_info(user_privacy_setting);
|
|
info.is_synchronized = false;
|
|
} else {
|
|
do_update_privacy(user_privacy_setting, r_privacy_rules.move_as_ok(), true);
|
|
}
|
|
}
|
|
|
|
void PrivacyManager::on_get_result(UserPrivacySetting user_privacy_setting,
|
|
Result<UserPrivacySettingRules> privacy_rules) {
|
|
auto &info = get_info(user_privacy_setting);
|
|
auto promises = std::move(info.get_promises);
|
|
reset_to_empty(info.get_promises);
|
|
for (auto &promise : promises) {
|
|
if (privacy_rules.is_error()) {
|
|
promise.set_error(privacy_rules.error().clone());
|
|
} else {
|
|
promise.set_value(privacy_rules.ok().as_td_api());
|
|
}
|
|
}
|
|
if (privacy_rules.is_ok()) {
|
|
do_update_privacy(user_privacy_setting, privacy_rules.move_as_ok(), false);
|
|
}
|
|
}
|
|
|
|
void PrivacyManager::do_update_privacy(UserPrivacySetting user_privacy_setting, UserPrivacySettingRules &&privacy_rules,
|
|
bool from_update) {
|
|
auto &info = get_info(user_privacy_setting);
|
|
bool was_synchronized = info.is_synchronized;
|
|
info.is_synchronized = true;
|
|
|
|
if (!(info.rules == privacy_rules)) {
|
|
if ((from_update || was_synchronized) && user_privacy_setting.type() == UserPrivacySetting::Type::UserStatus &&
|
|
!G()->close_flag()) {
|
|
send_closure_later(G()->contacts_manager(), &ContactsManager::on_update_online_status_privacy);
|
|
|
|
auto old_restricted = info.rules.get_restricted_user_ids();
|
|
auto new_restricted = privacy_rules.get_restricted_user_ids();
|
|
if (old_restricted != new_restricted) {
|
|
// if a user was unrestricted, it is not received from the server anymore
|
|
// we need to reget their online status manually
|
|
std::vector<int32> unrestricted;
|
|
std::set_difference(old_restricted.begin(), old_restricted.end(), new_restricted.begin(), new_restricted.end(),
|
|
std::back_inserter(unrestricted));
|
|
for (auto &user_id : unrestricted) {
|
|
send_closure_later(G()->contacts_manager(), &ContactsManager::reload_user, UserId(user_id), Promise<Unit>());
|
|
}
|
|
}
|
|
}
|
|
info.rules = std::move(privacy_rules);
|
|
send_closure(G()->td(), &Td::send_update,
|
|
make_tl_object<td_api::updateUserPrivacySettingRules>(user_privacy_setting.as_td_api(),
|
|
info.rules.as_td_api()));
|
|
}
|
|
}
|
|
|
|
void PrivacyManager::on_result(NetQueryPtr query) {
|
|
auto token = get_link_token();
|
|
container_.extract(token).set_value(std::move(query));
|
|
}
|
|
|
|
void PrivacyManager::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 PrivacyManager::hangup() {
|
|
container_.for_each(
|
|
[](auto id, Promise<NetQueryPtr> &promise) { promise.set_error(Status::Error(500, "Request aborted")); });
|
|
stop();
|
|
}
|
|
|
|
} // namespace td
|