tdlight/td/telegram/DialogId.cpp

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//
2022-01-01 01:35:39 +01:00
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2022
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#include "td/telegram/DialogId.h"
#include "td/telegram/telegram_api.h"
#include "td/utils/logging.h"
#include <limits>
namespace td {
bool DialogId::is_valid() const {
return get_type() != DialogType::None;
}
DialogType DialogId::get_type() const {
// check that valid ranges are continuous
static_assert(ZERO_CHANNEL_ID + 1 == -ChatId::MAX_CHAT_ID, "");
static_assert(
ZERO_SECRET_CHAT_ID + std::numeric_limits<int32>::max() + 1 == ZERO_CHANNEL_ID - ChannelId::MAX_CHANNEL_ID, "");
if (id < 0) {
if (-ChatId::MAX_CHAT_ID <= id) {
return DialogType::Chat;
}
if (ZERO_CHANNEL_ID - ChannelId::MAX_CHANNEL_ID <= id && id != ZERO_CHANNEL_ID) {
return DialogType::Channel;
}
if (ZERO_SECRET_CHAT_ID + std::numeric_limits<int32>::min() <= id && id != ZERO_SECRET_CHAT_ID) {
return DialogType::SecretChat;
}
} else if (0 < id && id <= UserId::MAX_USER_ID) {
return DialogType::User;
}
return DialogType::None;
}
UserId DialogId::get_user_id() const {
CHECK(get_type() == DialogType::User);
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return UserId(id);
}
ChatId DialogId::get_chat_id() const {
CHECK(get_type() == DialogType::Chat);
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return ChatId(-id);
}
ChannelId DialogId::get_channel_id() const {
CHECK(get_type() == DialogType::Channel);
return ChannelId(ZERO_CHANNEL_ID - id);
}
SecretChatId DialogId::get_secret_chat_id() const {
CHECK(get_type() == DialogType::SecretChat);
return SecretChatId(static_cast<int32>(id - ZERO_SECRET_CHAT_ID));
}
DialogId::DialogId(UserId user_id) {
if (user_id.is_valid()) {
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id = user_id.get();
} else {
id = 0;
}
}
DialogId::DialogId(ChatId chat_id) {
if (chat_id.is_valid()) {
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id = -chat_id.get();
} else {
id = 0;
}
}
DialogId::DialogId(ChannelId channel_id) {
if (channel_id.is_valid()) {
id = ZERO_CHANNEL_ID - channel_id.get();
} else {
id = 0;
}
}
DialogId::DialogId(SecretChatId secret_chat_id) {
if (secret_chat_id.is_valid()) {
id = ZERO_SECRET_CHAT_ID + static_cast<int64>(secret_chat_id.get());
} else {
id = 0;
}
}
DialogId::DialogId(const tl_object_ptr<telegram_api::DialogPeer> &dialog_peer) {
CHECK(dialog_peer != nullptr);
switch (dialog_peer->get_id()) {
case telegram_api::dialogPeer::ID:
id = get_peer_id(static_cast<const telegram_api::dialogPeer *>(dialog_peer.get())->peer_);
break;
case telegram_api::dialogPeerFolder::ID:
LOG(ERROR) << "Receive unsupported " << to_string(dialog_peer);
id = 0;
break;
default:
id = 0;
UNREACHABLE();
}
}
DialogId::DialogId(const tl_object_ptr<telegram_api::Peer> &peer) : id(get_peer_id(peer)) {
}
int64 DialogId::get_peer_id(const tl_object_ptr<telegram_api::Peer> &peer) {
CHECK(peer != nullptr);
switch (peer->get_id()) {
case telegram_api::peerUser::ID: {
auto peer_user = static_cast<const telegram_api::peerUser *>(peer.get());
UserId user_id(peer_user->user_id_);
if (!user_id.is_valid()) {
LOG(ERROR) << "Receive invalid " << user_id;
return 0;
}
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return user_id.get();
}
case telegram_api::peerChat::ID: {
auto peer_chat = static_cast<const telegram_api::peerChat *>(peer.get());
ChatId chat_id(peer_chat->chat_id_);
if (!chat_id.is_valid()) {
LOG(ERROR) << "Receive invalid " << chat_id;
return 0;
}
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return -chat_id.get();
}
case telegram_api::peerChannel::ID: {
auto peer_channel = static_cast<const telegram_api::peerChannel *>(peer.get());
ChannelId channel_id(peer_channel->channel_id_);
if (!channel_id.is_valid()) {
LOG(ERROR) << "Receive invalid " << channel_id;
return 0;
}
return ZERO_CHANNEL_ID - channel_id.get();
}
default:
UNREACHABLE();
return 0;
}
}
DialogId DialogId::get_message_dialog_id(const telegram_api::Message *message_ptr) {
CHECK(message_ptr != nullptr);
switch (message_ptr->get_id()) {
case telegram_api::messageEmpty::ID: {
auto message = static_cast<const telegram_api::messageEmpty *>(message_ptr);
return message->peer_id_ == nullptr ? DialogId() : DialogId(message->peer_id_);
}
case telegram_api::message::ID: {
auto message = static_cast<const telegram_api::message *>(message_ptr);
return DialogId(message->peer_id_);
}
case telegram_api::messageService::ID: {
auto message = static_cast<const telegram_api::messageService *>(message_ptr);
return DialogId(message->peer_id_);
}
default:
UNREACHABLE();
return DialogId();
}
}
DialogId DialogId::get_message_dialog_id(const tl_object_ptr<telegram_api::Message> &message_ptr) {
return get_message_dialog_id(message_ptr.get());
}
} // namespace td