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tdlight/td/telegram/PollManager.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/PollManager.h"
#include "td/telegram/AccessRights.h"
#include "td/telegram/AuthManager.h"
#include "td/telegram/ChainId.h"
#include "td/telegram/ChatManager.h"
#include "td/telegram/Dependencies.h"
#include "td/telegram/DialogId.h"
#include "td/telegram/DialogManager.h"
#include "td/telegram/Global.h"
#include "td/telegram/logevent/LogEvent.h"
#include "td/telegram/MessageId.h"
#include "td/telegram/MessageSender.h"
#include "td/telegram/MessagesManager.h"
#include "td/telegram/PollId.hpp"
#include "td/telegram/PollManager.hpp"
#include "td/telegram/StateManager.h"
#include "td/telegram/Td.h"
#include "td/telegram/TdDb.h"
#include "td/telegram/telegram_api.h"
#include "td/telegram/UpdatesManager.h"
#include "td/telegram/UserManager.h"
#include "td/db/binlog/BinlogEvent.h"
#include "td/db/binlog/BinlogHelper.h"
#include "td/db/SqliteKeyValue.h"
#include "td/db/SqliteKeyValueAsync.h"
#include "td/utils/algorithm.h"
#include "td/utils/buffer.h"
#include "td/utils/format.h"
#include "td/utils/logging.h"
#include "td/utils/misc.h"
#include "td/utils/Random.h"
#include "td/utils/Slice.h"
#include "td/utils/SliceBuilder.h"
#include "td/utils/Status.h"
#include "td/utils/tl_helpers.h"
#include <algorithm>
#include <limits>
namespace td {
class GetPollResultsQuery final : public Td::ResultHandler {
Promise<tl_object_ptr<telegram_api::Updates>> promise_;
PollId poll_id_;
DialogId dialog_id_;
MessageId message_id_;
public:
explicit GetPollResultsQuery(Promise<tl_object_ptr<telegram_api::Updates>> &&promise) : promise_(std::move(promise)) {
}
void send(PollId poll_id, MessageFullId message_full_id) {
poll_id_ = poll_id;
dialog_id_ = message_full_id.get_dialog_id();
message_id_ = message_full_id.get_message_id();
auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
if (input_peer == nullptr) {
LOG(INFO) << "Can't reget poll, because have no read access to " << dialog_id_;
return promise_.set_value(nullptr);
}
auto message_id = message_id_.get_server_message_id().get();
send_query(
G()->net_query_creator().create(telegram_api::messages_getPollResults(std::move(input_peer), message_id)));
}
void on_result(BufferSlice packet) final {
auto result_ptr = fetch_result<telegram_api::messages_getPollResults>(packet);
if (result_ptr.is_error()) {
return on_error(result_ptr.move_as_error());
}
promise_.set_value(result_ptr.move_as_ok());
}
void on_error(Status status) final {
if (!td_->messages_manager_->on_get_message_error(dialog_id_, message_id_, status, "GetPollResultsQuery")) {
LOG(ERROR) << "Receive " << status << ", while trying to get results of " << poll_id_;
}
promise_.set_error(std::move(status));
}
};
class GetPollVotersQuery final : public Td::ResultHandler {
Promise<tl_object_ptr<telegram_api::messages_votesList>> promise_;
PollId poll_id_;
DialogId dialog_id_;
public:
explicit GetPollVotersQuery(Promise<tl_object_ptr<telegram_api::messages_votesList>> &&promise)
: promise_(std::move(promise)) {
}
void send(PollId poll_id, MessageFullId message_full_id, BufferSlice &&option, const string &offset, int32 limit) {
poll_id_ = poll_id;
dialog_id_ = message_full_id.get_dialog_id();
auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
if (input_peer == nullptr) {
LOG(INFO) << "Can't get poll, because have no read access to " << dialog_id_;
return promise_.set_error(Status::Error(400, "Chat is not accessible"));
}
CHECK(!option.empty());
int32 flags = telegram_api::messages_getPollVotes::OPTION_MASK;
if (!offset.empty()) {
flags |= telegram_api::messages_getPollVotes::OFFSET_MASK;
}
auto message_id = message_full_id.get_message_id().get_server_message_id().get();
send_query(G()->net_query_creator().create(telegram_api::messages_getPollVotes(
flags, std::move(input_peer), message_id, std::move(option), offset, limit)));
}
void on_result(BufferSlice packet) final {
auto result_ptr = fetch_result<telegram_api::messages_getPollVotes>(packet);
if (result_ptr.is_error()) {
return on_error(result_ptr.move_as_error());
}
promise_.set_value(result_ptr.move_as_ok());
}
void on_error(Status status) final {
if (!td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "GetPollVotersQuery") &&
status.message() != "MESSAGE_ID_INVALID") {
LOG(ERROR) << "Receive " << status << ", while trying to get voters of " << poll_id_;
}
promise_.set_error(std::move(status));
}
};
class SendVoteQuery final : public Td::ResultHandler {
Promise<tl_object_ptr<telegram_api::Updates>> promise_;
DialogId dialog_id_;
public:
explicit SendVoteQuery(Promise<tl_object_ptr<telegram_api::Updates>> &&promise) : promise_(std::move(promise)) {
}
void send(MessageFullId message_full_id, vector<BufferSlice> &&options, PollId poll_id, uint64 generation,
NetQueryRef *query_ref) {
dialog_id_ = message_full_id.get_dialog_id();
auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Read);
if (input_peer == nullptr) {
LOG(INFO) << "Can't set poll answer, because have no read access to " << dialog_id_;
return on_error(Status::Error(400, "Can't access the chat"));
}
auto message_id = message_full_id.get_message_id().get_server_message_id().get();
auto query = G()->net_query_creator().create(
telegram_api::messages_sendVote(std::move(input_peer), message_id, std::move(options)),
{{poll_id}, {dialog_id_}});
*query_ref = query.get_weak();
send_query(std::move(query));
}
void on_result(BufferSlice packet) final {
auto result_ptr = fetch_result<telegram_api::messages_sendVote>(packet);
if (result_ptr.is_error()) {
return on_error(result_ptr.move_as_error());
}
auto result = result_ptr.move_as_ok();
LOG(INFO) << "Receive result for SendVoteQuery: " << to_string(result);
promise_.set_value(std::move(result));
}
void on_error(Status status) final {
td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "SendVoteQuery");
promise_.set_error(std::move(status));
}
};
class StopPollQuery final : public Td::ResultHandler {
Promise<Unit> promise_;
DialogId dialog_id_;
public:
explicit StopPollQuery(Promise<Unit> &&promise) : promise_(std::move(promise)) {
}
void send(MessageFullId message_full_id, unique_ptr<ReplyMarkup> &&reply_markup, PollId poll_id) {
dialog_id_ = message_full_id.get_dialog_id();
auto input_peer = td_->dialog_manager_->get_input_peer(dialog_id_, AccessRights::Edit);
if (input_peer == nullptr) {
LOG(INFO) << "Can't close poll, because have no edit access to " << dialog_id_;
return on_error(Status::Error(400, "Can't access the chat"));
}
int32 flags = telegram_api::messages_editMessage::MEDIA_MASK;
auto input_reply_markup = get_input_reply_markup(td_->user_manager_.get(), reply_markup);
if (input_reply_markup != nullptr) {
flags |= telegram_api::messages_editMessage::REPLY_MARKUP_MASK;
}
auto message_id = message_full_id.get_message_id().get_server_message_id().get();
auto poll = telegram_api::make_object<telegram_api::poll>(
poll_id.get(), telegram_api::poll::CLOSED_MASK, false /*ignored*/, false /*ignored*/, false /*ignored*/,
false /*ignored*/, telegram_api::make_object<telegram_api::textWithEntities>(string(), Auto()), Auto(), 0, 0);
auto input_media = telegram_api::make_object<telegram_api::inputMediaPoll>(0, std::move(poll),
vector<BufferSlice>(), string(), Auto());
send_query(G()->net_query_creator().create(
telegram_api::messages_editMessage(flags, false /*ignored*/, false /*ignored*/, std::move(input_peer),
message_id, string(), std::move(input_media), std::move(input_reply_markup),
vector<tl_object_ptr<telegram_api::MessageEntity>>(), 0, 0),
{{poll_id}, {dialog_id_}}));
}
void on_result(BufferSlice packet) final {
auto result_ptr = fetch_result<telegram_api::messages_editMessage>(packet);
if (result_ptr.is_error()) {
return on_error(result_ptr.move_as_error());
}
auto result = result_ptr.move_as_ok();
LOG(INFO) << "Receive result for StopPollQuery: " << to_string(result);
td_->updates_manager_->on_get_updates(std::move(result), std::move(promise_));
}
void on_error(Status status) final {
if (!td_->auth_manager_->is_bot() && status.message() == "MESSAGE_NOT_MODIFIED") {
return promise_.set_value(Unit());
}
td_->dialog_manager_->on_get_dialog_error(dialog_id_, status, "StopPollQuery");
promise_.set_error(std::move(status));
}
};
PollManager::PollManager(Td *td, ActorShared<> parent) : td_(td), parent_(std::move(parent)) {
update_poll_timeout_.set_callback(on_update_poll_timeout_callback);
update_poll_timeout_.set_callback_data(static_cast<void *>(this));
close_poll_timeout_.set_callback(on_close_poll_timeout_callback);
close_poll_timeout_.set_callback_data(static_cast<void *>(this));
unload_poll_timeout_.set_callback(on_unload_poll_timeout_callback);
unload_poll_timeout_.set_callback_data(static_cast<void *>(this));
}
void PollManager::start_up() {
if (td_->auth_manager_->is_bot()) {
return;
}
class StateCallback final : public StateManager::Callback {
public:
explicit StateCallback(ActorId<PollManager> parent) : parent_(std::move(parent)) {
}
bool on_online(bool is_online) final {
if (is_online) {
send_closure(parent_, &PollManager::on_online);
}
return parent_.is_alive();
}
private:
ActorId<PollManager> parent_;
};
send_closure(G()->state_manager(), &StateManager::add_callback, make_unique<StateCallback>(actor_id(this)));
}
void PollManager::tear_down() {
parent_.reset();
}
PollManager::~PollManager() {
Scheduler::instance()->destroy_on_scheduler(G()->get_gc_scheduler_id(), polls_, server_poll_messages_,
other_poll_messages_, reply_poll_counts_, poll_voters_,
loaded_from_database_polls_);
}
void PollManager::on_update_poll_timeout_callback(void *poll_manager_ptr, int64 poll_id_int) {
if (G()->close_flag()) {
return;
}
auto poll_manager = static_cast<PollManager *>(poll_manager_ptr);
send_closure_later(poll_manager->actor_id(poll_manager), &PollManager::on_update_poll_timeout, PollId(poll_id_int));
}
void PollManager::on_close_poll_timeout_callback(void *poll_manager_ptr, int64 poll_id_int) {
if (G()->close_flag()) {
return;
}
auto poll_manager = static_cast<PollManager *>(poll_manager_ptr);
send_closure_later(poll_manager->actor_id(poll_manager), &PollManager::on_close_poll_timeout, PollId(poll_id_int));
}
void PollManager::on_unload_poll_timeout_callback(void *poll_manager_ptr, int64 poll_id_int) {
if (G()->close_flag()) {
return;
}
auto poll_manager = static_cast<PollManager *>(poll_manager_ptr);
send_closure_later(poll_manager->actor_id(poll_manager), &PollManager::on_unload_poll_timeout, PollId(poll_id_int));
}
bool PollManager::is_local_poll_id(PollId poll_id) {
return poll_id.get() < 0 && poll_id.get() > std::numeric_limits<int32>::min();
}
const PollManager::Poll *PollManager::get_poll(PollId poll_id) const {
return polls_.get_pointer(poll_id);
}
const PollManager::Poll *PollManager::get_poll(PollId poll_id) {
auto p = polls_.get_pointer(poll_id);
if (p != nullptr) {
schedule_poll_unload(poll_id);
}
return p;
}
PollManager::Poll *PollManager::get_poll_editable(PollId poll_id) {
auto p = polls_.get_pointer(poll_id);
if (p != nullptr) {
schedule_poll_unload(poll_id);
}
return p;
}
bool PollManager::have_poll(PollId poll_id) const {
return get_poll(poll_id) != nullptr;
}
void PollManager::notify_on_poll_update(PollId poll_id) {
if (td_->auth_manager_->is_bot()) {
return;
}
if (server_poll_messages_.count(poll_id) > 0) {
server_poll_messages_[poll_id].foreach([&](const MessageFullId &message_full_id) {
td_->messages_manager_->on_external_update_message_content(message_full_id, "notify_on_poll_update 1");
});
}
if (other_poll_messages_.count(poll_id) > 0) {
other_poll_messages_[poll_id].foreach([&](const MessageFullId &message_full_id) {
td_->messages_manager_->on_external_update_message_content(message_full_id, "notify_on_poll_update 2");
});
}
}
string PollManager::get_poll_database_key(PollId poll_id) {
return PSTRING() << "poll" << poll_id.get();
}
void PollManager::save_poll(const Poll *poll, PollId poll_id) {
CHECK(!is_local_poll_id(poll_id));
poll->was_saved_ = true;
if (!G()->use_message_database()) {
return;
}
LOG(INFO) << "Save " << poll_id << " to database";
CHECK(poll != nullptr);
G()->td_db()->get_sqlite_pmc()->set(get_poll_database_key(poll_id), log_event_store(*poll).as_slice().str(), Auto());
}
void PollManager::on_load_poll_from_database(PollId poll_id, string value) {
CHECK(poll_id.is_valid());
loaded_from_database_polls_.insert(poll_id);
LOG(INFO) << "Successfully loaded " << poll_id << " of size " << value.size() << " from database";
// G()->td_db()->get_sqlite_pmc()->erase(get_poll_database_key(poll_id), Auto());
// return;
CHECK(!have_poll(poll_id));
if (!value.empty()) {
auto poll = make_unique<Poll>();
if (log_event_parse(*poll, value).is_error()) {
return;
}
for (const auto &recent_voter_min_channel : poll->recent_voter_min_channels_) {
LOG(INFO) << "Add min voted " << recent_voter_min_channel.first;
td_->chat_manager_->add_min_channel(recent_voter_min_channel.first, recent_voter_min_channel.second);
}
Dependencies dependencies;
for (auto dialog_id : poll->recent_voter_dialog_ids_) {
dependencies.add_message_sender_dependencies(dialog_id);
}
if (!dependencies.resolve_force(td_, "on_load_poll_from_database")) {
poll->recent_voter_dialog_ids_.clear();
poll->recent_voter_min_channels_.clear();
}
if (!poll->is_closed_ && poll->close_date_ != 0) {
if (poll->close_date_ <= G()->server_time()) {
poll->is_closed_ = true;
} else {
CHECK(!is_local_poll_id(poll_id));
if (!G()->close_flag()) {
close_poll_timeout_.set_timeout_in(poll_id.get(), poll->close_date_ - G()->server_time() + 1e-3);
}
}
}
polls_[poll_id] = std::move(poll);
}
}
bool PollManager::have_poll_force(PollId poll_id) {
return get_poll_force(poll_id) != nullptr;
}
PollManager::Poll *PollManager::get_poll_force(PollId poll_id) {
auto poll = get_poll_editable(poll_id);
if (poll != nullptr) {
return poll;
}
if (!G()->use_message_database()) {
return nullptr;
}
if (!poll_id.is_valid() || loaded_from_database_polls_.count(poll_id)) {
return nullptr;
}
LOG(INFO) << "Trying to load " << poll_id << " from database";
on_load_poll_from_database(poll_id, G()->td_db()->get_sqlite_sync_pmc()->get(get_poll_database_key(poll_id)));
return get_poll_editable(poll_id);
}
void PollManager::remove_unallowed_entities(FormattedText &text) {
td::remove_if(text.entities, [](MessageEntity &entity) { return entity.type != MessageEntity::Type::CustomEmoji; });
}
td_api::object_ptr<td_api::pollOption> PollManager::get_poll_option_object(const PollOption &poll_option) {
return td_api::make_object<td_api::pollOption>(get_formatted_text_object(poll_option.text_, true, -1),
poll_option.voter_count_, 0, poll_option.is_chosen_, false);
}
vector<int32> PollManager::get_vote_percentage(const vector<int32> &voter_counts, int32 total_voter_count) {
int32 sum = 0;
for (auto voter_count : voter_counts) {
CHECK(0 <= voter_count);
CHECK(voter_count <= std::numeric_limits<int32>::max() - sum);
sum += voter_count;
}
if (total_voter_count > sum) {
if (sum != 0) {
LOG(ERROR) << "Have total_voter_count = " << total_voter_count << ", but votes sum = " << sum << ": "
<< voter_counts;
}
total_voter_count = sum;
}
vector<int32> result(voter_counts.size(), 0);
if (total_voter_count == 0) {
return result;
}
if (total_voter_count != sum) {
// just round to the nearest
for (size_t i = 0; i < result.size(); i++) {
result[i] =
static_cast<int32>((static_cast<int64>(voter_counts[i]) * 200 + total_voter_count) / total_voter_count / 2);
}
return result;
}
// make sure that options with equal votes have equal percent and total sum is less than 100%
int32 percent_sum = 0;
vector<int32> gap(voter_counts.size(), 0);
for (size_t i = 0; i < result.size(); i++) {
auto multiplied_voter_count = static_cast<int64>(voter_counts[i]) * 100;
result[i] = static_cast<int32>(multiplied_voter_count / total_voter_count);
CHECK(0 <= result[i] && result[i] <= 100);
gap[i] = static_cast<int32>(static_cast<int64>(result[i] + 1) * total_voter_count - multiplied_voter_count);
CHECK(0 <= gap[i] && gap[i] <= total_voter_count);
percent_sum += result[i];
}
CHECK(0 <= percent_sum && percent_sum <= 100);
if (percent_sum == 100) {
return result;
}
// now we need to choose up to (100 - percent_sum) options with a minimum total gap, such that
// any two options with the same voter_count are chosen or not chosen simultaneously
struct Option {
int32 pos = -1;
int32 count = 0;
};
FlatHashMap<int32, Option> options;
for (size_t i = 0; i < result.size(); i++) {
auto &option = options[voter_counts[i] + 1];
if (option.pos == -1) {
option.pos = narrow_cast<int32>(i);
}
option.count++;
}
vector<Option> sorted_options;
for (const auto &it : options) {
const auto &option = it.second;
auto pos = option.pos;
if (gap[pos] > total_voter_count / 2) {
// do not round to wrong direction
continue;
}
if (total_voter_count % 2 == 0 && gap[pos] == total_voter_count / 2 && result[pos] >= 50) {
// round halves to the 50%
continue;
}
sorted_options.push_back(option);
}
std::sort(sorted_options.begin(), sorted_options.end(), [&](const Option &lhs, const Option &rhs) {
if (gap[lhs.pos] != gap[rhs.pos]) {
// prefer options with smallest gap
return gap[lhs.pos] < gap[rhs.pos];
}
if (lhs.count != rhs.count) {
// prefer more popular options
return lhs.count > rhs.count;
}
return lhs.pos < rhs.pos; // prefer the first encountered option
});
// dynamic programming or brute force can give perfect result, but for now we use simple gready approach
int32 left_percent = 100 - percent_sum;
for (auto option : sorted_options) {
if (option.count <= left_percent) {
left_percent -= option.count;
auto pos = option.pos;
for (size_t i = 0; i < result.size(); i++) {
if (voter_counts[i] == voter_counts[pos]) {
result[i]++;
}
}
if (left_percent == 0) {
break;
}
}
}
return result;
}
td_api::object_ptr<td_api::poll> PollManager::get_poll_object(PollId poll_id) const {
auto poll = get_poll(poll_id);
CHECK(poll != nullptr);
return get_poll_object(poll_id, poll);
}
td_api::object_ptr<td_api::poll> PollManager::get_poll_object(PollId poll_id, const Poll *poll) const {
vector<td_api::object_ptr<td_api::pollOption>> poll_options;
auto it = pending_answers_.find(poll_id);
int32 voter_count_diff = 0;
if (it == pending_answers_.end() || (it->second.is_finished_ && poll->was_saved_)) {
poll_options = transform(poll->options_, get_poll_option_object);
} else {
const auto &chosen_options = it->second.options_;
LOG(INFO) << "Have pending chosen options " << chosen_options << " in " << poll_id;
for (auto &poll_option : poll->options_) {
auto is_being_chosen = td::contains(chosen_options, poll_option.data_);
if (poll_option.is_chosen_) {
voter_count_diff = -1;
}
poll_options.push_back(td_api::make_object<td_api::pollOption>(
get_formatted_text_object(poll_option.text_, true, -1),
poll_option.voter_count_ - static_cast<int32>(poll_option.is_chosen_), 0, false, is_being_chosen));
}
}
auto total_voter_count = poll->total_voter_count_ + voter_count_diff;
bool is_voted = false;
for (auto &poll_option : poll_options) {
is_voted |= poll_option->is_chosen_;
}
if (!is_voted && !poll->is_closed_ && !td_->auth_manager_->is_bot()) {
// hide the voter counts
for (auto &poll_option : poll_options) {
poll_option->voter_count_ = 0;
}
} else {
// calculate vote percentage and fix total_voter_count
auto voter_counts = transform(poll_options, [](auto &poll_option) { return poll_option->voter_count_; });
auto voter_count_sum = 0;
for (auto voter_count : voter_counts) {
if (total_voter_count < voter_count) {
LOG(ERROR) << "Fix total voter count from " << poll->total_voter_count_ << " + " << voter_count_diff << " to "
<< voter_count << " in " << poll_id;
total_voter_count = voter_count;
}
voter_count_sum += voter_count;
}
if (voter_count_sum < total_voter_count && voter_count_sum != 0) {
LOG(ERROR) << "Fix total voter count from " << poll->total_voter_count_ << " + " << voter_count_diff << " to "
<< voter_count_sum << " in " << poll_id;
total_voter_count = voter_count_sum;
}
auto vote_percentage = get_vote_percentage(voter_counts, total_voter_count);
CHECK(poll_options.size() == vote_percentage.size());
for (size_t i = 0; i < poll_options.size(); i++) {
poll_options[i]->vote_percentage_ = vote_percentage[i];
}
}
td_api::object_ptr<td_api::PollType> poll_type;
if (poll->is_quiz_) {
auto correct_option_id = is_local_poll_id(poll_id) ? -1 : poll->correct_option_id_;
poll_type = td_api::make_object<td_api::pollTypeQuiz>(
correct_option_id,
get_formatted_text_object(is_local_poll_id(poll_id) ? FormattedText() : poll->explanation_, true, -1));
} else {
poll_type = td_api::make_object<td_api::pollTypeRegular>(poll->allow_multiple_answers_);
}
auto open_period = poll->open_period_;
auto close_date = poll->close_date_;
if (open_period != 0 && close_date == 0) {
close_date = G()->unix_time() + open_period;
}
if (open_period == 0 && close_date != 0) {
auto now = G()->unix_time();
if (close_date < now + 5) {
close_date = 0;
} else {
open_period = close_date - now;
}
}
if (poll->is_closed_) {
open_period = 0;
close_date = 0;
}
vector<td_api::object_ptr<td_api::MessageSender>> recent_voters;
for (auto dialog_id : poll->recent_voter_dialog_ids_) {
auto recent_voter = get_min_message_sender_object(td_, dialog_id, "get_poll_object");
if (recent_voter != nullptr) {
recent_voters.push_back(std::move(recent_voter));
}
}
return td_api::make_object<td_api::poll>(
poll_id.get(), get_formatted_text_object(poll->question_, true, -1), std::move(poll_options), total_voter_count,
std::move(recent_voters), poll->is_anonymous_, std::move(poll_type), open_period, close_date, poll->is_closed_);
}
telegram_api::object_ptr<telegram_api::pollAnswer> PollManager::get_input_poll_option(const PollOption &poll_option) {
return telegram_api::make_object<telegram_api::pollAnswer>(
get_input_text_with_entities(nullptr, poll_option.text_, "get_input_poll_option"),
BufferSlice(poll_option.data_));
}
PollId PollManager::create_poll(FormattedText &&question, vector<FormattedText> &&options, bool is_anonymous,
bool allow_multiple_answers, bool is_quiz, int32 correct_option_id,
FormattedText &&explanation, int32 open_period, int32 close_date, bool is_closed) {
remove_unallowed_entities(question);
for (auto &option : options) {
remove_unallowed_entities(option);
}
auto poll = make_unique<Poll>();
poll->question_ = std::move(question);
int pos = '0';
for (auto &option_text : options) {
PollOption option;
option.text_ = std::move(option_text);
option.data_ = string(1, narrow_cast<char>(pos++));
poll->options_.push_back(std::move(option));
}
poll->is_anonymous_ = is_anonymous;
poll->allow_multiple_answers_ = allow_multiple_answers;
poll->is_quiz_ = is_quiz;
poll->correct_option_id_ = correct_option_id;
poll->explanation_ = std::move(explanation);
poll->open_period_ = open_period;
poll->close_date_ = close_date;
poll->is_closed_ = is_closed;
PollId poll_id(--current_local_poll_id_);
CHECK(is_local_poll_id(poll_id));
polls_.set(poll_id, std::move(poll));
return poll_id;
}
void PollManager::register_poll(PollId poll_id, MessageFullId message_full_id, const char *source) {
CHECK(have_poll(poll_id));
if (message_full_id.get_message_id().is_scheduled() || !message_full_id.get_message_id().is_server()) {
other_poll_messages_[poll_id].insert(message_full_id);
if (!G()->close_flag()) {
unload_poll_timeout_.cancel_timeout(poll_id.get());
}
return;
}
LOG(INFO) << "Register " << poll_id << " from " << message_full_id << " from " << source;
server_poll_messages_[poll_id].insert(message_full_id);
auto poll = get_poll(poll_id);
CHECK(poll != nullptr);
if (!td_->auth_manager_->is_bot() && !is_local_poll_id(poll_id) &&
!(poll->is_closed_ && poll->is_updated_after_close_) && !G()->close_flag()) {
update_poll_timeout_.add_timeout_in(poll_id.get(), 0);
}
if (!G()->close_flag()) {
unload_poll_timeout_.cancel_timeout(poll_id.get());
}
}
void PollManager::unregister_poll(PollId poll_id, MessageFullId message_full_id, const char *source) {
CHECK(have_poll(poll_id));
if (message_full_id.get_message_id().is_scheduled() || !message_full_id.get_message_id().is_server()) {
auto &message_ids = other_poll_messages_[poll_id];
auto is_deleted = message_ids.erase(message_full_id) > 0;
LOG_CHECK(is_deleted) << source << ' ' << poll_id << ' ' << message_full_id;
if (is_local_poll_id(poll_id)) {
CHECK(message_ids.empty());
forget_local_poll(poll_id);
}
if (message_ids.empty()) {
other_poll_messages_.erase(poll_id);
schedule_poll_unload(poll_id);
}
return;
}
LOG(INFO) << "Unregister " << poll_id << " from " << message_full_id << " from " << source;
auto &message_ids = server_poll_messages_[poll_id];
auto is_deleted = message_ids.erase(message_full_id) > 0;
LOG_CHECK(is_deleted) << source << ' ' << poll_id << ' ' << message_full_id;
if (is_local_poll_id(poll_id)) {
CHECK(message_ids.empty());
forget_local_poll(poll_id);
}
if (message_ids.empty()) {
server_poll_messages_.erase(poll_id);
if (!G()->close_flag()) {
update_poll_timeout_.cancel_timeout(poll_id.get(), "unregister_poll");
}
schedule_poll_unload(poll_id);
}
}
void PollManager::register_reply_poll(PollId poll_id) {
CHECK(have_poll(poll_id));
CHECK(!is_local_poll_id(poll_id));
LOG(INFO) << "Register replied " << poll_id;
reply_poll_counts_[poll_id]++;
if (!G()->close_flag()) {
unload_poll_timeout_.cancel_timeout(poll_id.get());
}
}
void PollManager::unregister_reply_poll(PollId poll_id) {
CHECK(have_poll(poll_id));
CHECK(!is_local_poll_id(poll_id));
LOG(INFO) << "Unregister replied " << poll_id;
auto &count = reply_poll_counts_[poll_id];
CHECK(count > 0);
count--;
if (count == 0) {
reply_poll_counts_.erase(poll_id);
schedule_poll_unload(poll_id);
}
}
bool PollManager::can_unload_poll(PollId poll_id) {
if (G()->close_flag()) {
return false;
}
if (is_local_poll_id(poll_id) || server_poll_messages_.count(poll_id) != 0 ||
other_poll_messages_.count(poll_id) != 0 || reply_poll_counts_.count(poll_id) != 0 ||
pending_answers_.count(poll_id) != 0 || being_closed_polls_.count(poll_id) != 0) {
return false;
}
auto it = poll_voters_.find(poll_id);
if (it != poll_voters_.end() && !it->second.empty()) {
for (auto &voters : it->second) {
if (!voters.pending_queries_.empty()) {
return false;
}
}
}
return true;
}
void PollManager::schedule_poll_unload(PollId poll_id) {
if (can_unload_poll(poll_id)) {
unload_poll_timeout_.set_timeout_in(poll_id.get(), UNLOAD_POLL_DELAY);
}
}
bool PollManager::get_poll_is_closed(PollId poll_id) const {
auto poll = get_poll(poll_id);
CHECK(poll != nullptr);
return poll->is_closed_;
}
bool PollManager::get_poll_is_anonymous(PollId poll_id) const {
auto poll = get_poll(poll_id);
CHECK(poll != nullptr);
return poll->is_anonymous_;
}
string PollManager::get_poll_search_text(PollId poll_id) const {
auto poll = get_poll(poll_id);
CHECK(poll != nullptr);
string result = poll->question_.text;
for (auto &option : poll->options_) {
result += ' ';
result += option.text_.text;
}
return result;
}
void PollManager::set_poll_answer(PollId poll_id, MessageFullId message_full_id, vector<int32> &&option_ids,
Promise<Unit> &&promise) {
td::unique(option_ids);
if (is_local_poll_id(poll_id)) {
return promise.set_error(Status::Error(400, "Poll can't be answered"));
}
auto poll = get_poll(poll_id);
CHECK(poll != nullptr);
if (poll->is_closed_) {
return promise.set_error(Status::Error(400, "Can't answer closed poll"));
}
if (!poll->allow_multiple_answers_ && option_ids.size() > 1) {
return promise.set_error(Status::Error(400, "Can't choose more than 1 option in the poll"));
}
if (poll->is_quiz_ && option_ids.empty()) {
return promise.set_error(Status::Error(400, "Can't retract vote in a quiz"));
}
if (poll->is_quiz_ && pending_answers_.count(poll_id) != 0) {
return promise.set_error(Status::Error(400, "Can't revote in a quiz"));
}
FlatHashMap<uint64, int> affected_option_ids;
vector<string> options;
for (auto &option_id : option_ids) {
auto index = static_cast<size_t>(option_id);
if (index >= poll->options_.size()) {
return promise.set_error(Status::Error(400, "Invalid option ID specified"));
}
options.push_back(poll->options_[index].data_);
affected_option_ids[index + 1]++;
}
for (size_t option_index = 0; option_index < poll->options_.size(); option_index++) {
if (poll->options_[option_index].is_chosen_) {
if (poll->is_quiz_) {
return promise.set_error(Status::Error(400, "Can't revote in a quiz"));
}
affected_option_ids[option_index + 1]++;
}
}
for (const auto &it : affected_option_ids) {
if (it.second == 1) {
invalidate_poll_option_voters(poll, poll_id, static_cast<size_t>(it.first - 1));
}
}
do_set_poll_answer(poll_id, message_full_id, std::move(options), 0, std::move(promise));
}
class PollManager::SetPollAnswerLogEvent {
public:
PollId poll_id_;
MessageFullId message_full_id_;
vector<string> options_;
template <class StorerT>
void store(StorerT &storer) const {
td::store(poll_id_, storer);
td::store(message_full_id_, storer);
td::store(options_, storer);
}
template <class ParserT>
void parse(ParserT &parser) {
td::parse(poll_id_, parser);
td::parse(message_full_id_, parser);
td::parse(options_, parser);
}
};
void PollManager::do_set_poll_answer(PollId poll_id, MessageFullId message_full_id, vector<string> &&options,
uint64 log_event_id, Promise<Unit> &&promise) {
LOG(INFO) << "Set answer in " << poll_id << " from " << message_full_id;
if (!poll_id.is_valid() || !message_full_id.get_dialog_id().is_valid() ||
!message_full_id.get_message_id().is_valid()) {
CHECK(log_event_id != 0);
LOG(ERROR) << "Invalid SetPollAnswer log event";
binlog_erase(G()->td_db()->get_binlog(), log_event_id);
return;
}
if (!G()->close_flag()) {
unload_poll_timeout_.cancel_timeout(poll_id.get());
}
auto &pending_answer = pending_answers_[poll_id];
if (!pending_answer.promises_.empty() && pending_answer.options_ == options) {
pending_answer.promises_.push_back(std::move(promise));
return;
}
if (pending_answer.log_event_id_ != 0 && log_event_id != 0) {
LOG(ERROR) << "Duplicate SetPollAnswer log event: " << pending_answer.log_event_id_ << " and " << log_event_id;
binlog_erase(G()->td_db()->get_binlog(), log_event_id);
return;
}
if (log_event_id == 0 && G()->use_message_database()) {
SetPollAnswerLogEvent log_event;
log_event.poll_id_ = poll_id;
log_event.message_full_id_ = message_full_id;
log_event.options_ = options;
auto storer = get_log_event_storer(log_event);
if (pending_answer.generation_ == 0 || pending_answer.is_finished_) {
CHECK(pending_answer.log_event_id_ == 0);
log_event_id = binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::SetPollAnswer, storer);
LOG(INFO) << "Add set poll answer log event " << log_event_id;
CHECK(log_event_id != 0);
} else {
CHECK(pending_answer.log_event_id_ != 0);
log_event_id = pending_answer.log_event_id_;
auto new_log_event_id =
binlog_rewrite(G()->td_db()->get_binlog(), log_event_id, LogEvent::HandlerType::SetPollAnswer, storer);
LOG(INFO) << "Rewrite set poll answer log event " << log_event_id << " with " << new_log_event_id;
}
}
if (!pending_answer.promises_.empty()) {
CHECK(!pending_answer.query_ref_.empty());
cancel_query(pending_answer.query_ref_);
pending_answer.query_ref_ = NetQueryRef();
auto promises = std::move(pending_answer.promises_);
pending_answer.promises_.clear();
for (auto &old_promise : promises) {
old_promise.set_value(Unit());
}
}
vector<BufferSlice> sent_options;
for (auto &option : options) {
sent_options.emplace_back(option);
}
auto generation = ++current_generation_;
pending_answer.options_ = std::move(options);
pending_answer.promises_.push_back(std::move(promise));
pending_answer.generation_ = generation;
pending_answer.log_event_id_ = log_event_id;
pending_answer.is_finished_ = false;
notify_on_poll_update(poll_id);
auto query_promise = PromiseCreator::lambda(
[actor_id = actor_id(this), poll_id, generation](Result<tl_object_ptr<telegram_api::Updates>> &&result) {
send_closure(actor_id, &PollManager::on_set_poll_answer, poll_id, generation, std::move(result));
});
td_->create_handler<SendVoteQuery>(std::move(query_promise))
->send(message_full_id, std::move(sent_options), poll_id, generation, &pending_answer.query_ref_);
}
void PollManager::on_set_poll_answer(PollId poll_id, uint64 generation,
Result<tl_object_ptr<telegram_api::Updates>> &&result) {
if (G()->close_flag() && result.is_error()) {
// request will be re-sent after restart
return;
}
auto it = pending_answers_.find(poll_id);
if (it == pending_answers_.end()) {
// can happen if this is an answer with mismatched generation and server has ignored invoke-after
return;
}
auto &pending_answer = it->second;
CHECK(!pending_answer.promises_.empty());
if (pending_answer.generation_ != generation) {
return;
}
if (pending_answer.log_event_id_ != 0) {
LOG(INFO) << "Delete set poll answer log event " << pending_answer.log_event_id_;
binlog_erase(G()->td_db()->get_binlog(), pending_answer.log_event_id_);
pending_answer.log_event_id_ = 0;
}
pending_answer.is_finished_ = true;
auto poll = get_poll(poll_id);
if (poll != nullptr) {
poll->was_saved_ = false;
}
if (result.is_ok()) {
td_->updates_manager_->on_get_updates(
result.move_as_ok(),
PromiseCreator::lambda([actor_id = actor_id(this), poll_id, generation](Result<Unit> &&result) mutable {
send_closure(actor_id, &PollManager::on_set_poll_answer_finished, poll_id, Unit(), generation);
}));
} else {
on_set_poll_answer_finished(poll_id, result.move_as_error(), generation);
}
}
void PollManager::on_set_poll_answer_finished(PollId poll_id, Result<Unit> &&result, uint64 generation) {
auto it = pending_answers_.find(poll_id);
if (it == pending_answers_.end()) {
return;
}
auto &pending_answer = it->second;
CHECK(!pending_answer.promises_.empty());
if (pending_answer.generation_ != generation) {
return;
}
CHECK(pending_answer.is_finished_);
auto promises = std::move(pending_answer.promises_);
pending_answers_.erase(it);
if (!G()->close_flag()) {
auto poll = get_poll(poll_id);
if (poll != nullptr && !poll->was_saved_) {
// no updates were sent during updates processing, so send them
// poll wasn't changed, so there is no reason to actually save it
if (!(poll->is_closed_ && poll->is_updated_after_close_)) {
LOG(INFO) << "Schedule updating of " << poll_id << " soon";
update_poll_timeout_.set_timeout_in(poll_id.get(), 0.0);
}
notify_on_poll_update(poll_id);
poll->was_saved_ = true;
}
}
LOG(INFO) << "Finish to set answer for " << poll_id;
if (result.is_ok()) {
set_promises(promises);
} else {
fail_promises(promises, result.move_as_error());
}
}
void PollManager::invalidate_poll_voters(const Poll *poll, PollId poll_id) {
if (poll->is_anonymous_) {
return;
}
auto it = poll_voters_.find(poll_id);
if (it == poll_voters_.end()) {
return;
}
for (auto &voters : it->second) {
voters.was_invalidated_ = true;
}
}
void PollManager::invalidate_poll_option_voters(const Poll *poll, PollId poll_id, size_t option_index) {
if (poll->is_anonymous_) {
return;
}
auto it = poll_voters_.find(poll_id);
if (it == poll_voters_.end()) {
return;
}
auto &poll_voters = it->second;
CHECK(poll_voters.size() == poll->options_.size());
CHECK(option_index < poll_voters.size());
poll_voters[option_index].was_invalidated_ = true;
}
PollManager::PollOptionVoters &PollManager::get_poll_option_voters(const Poll *poll, PollId poll_id, int32 option_id) {
auto &poll_voters = poll_voters_[poll_id];
if (poll_voters.empty()) {
poll_voters.resize(poll->options_.size());
}
auto index = narrow_cast<size_t>(option_id);
CHECK(index < poll_voters.size());
return poll_voters[index];
}
td_api::object_ptr<td_api::messageSenders> PollManager::get_poll_voters_object(
int32 total_count, const vector<DialogId> &voter_dialog_ids) const {
auto result = td_api::make_object<td_api::messageSenders>();
result->total_count_ = total_count;
for (auto dialog_id : voter_dialog_ids) {
auto message_sender = get_min_message_sender_object(td_, dialog_id, "get_poll_voters_object");
if (message_sender != nullptr) {
result->senders_.push_back(std::move(message_sender));
}
}
return result;
}
void PollManager::get_poll_voters(PollId poll_id, MessageFullId message_full_id, int32 option_id, int32 offset,
int32 limit, Promise<td_api::object_ptr<td_api::messageSenders>> &&promise) {
if (is_local_poll_id(poll_id)) {
return promise.set_error(Status::Error(400, "Poll results can't be received"));
}
if (offset < 0) {
return promise.set_error(Status::Error(400, "Invalid offset specified"));
}
if (limit <= 0) {
return promise.set_error(Status::Error(400, "Parameter limit must be positive"));
}
if (limit > MAX_GET_POLL_VOTERS) {
limit = MAX_GET_POLL_VOTERS;
}
auto poll = get_poll(poll_id);
CHECK(poll != nullptr);
if (option_id < 0 || static_cast<size_t>(option_id) >= poll->options_.size()) {
return promise.set_error(Status::Error(400, "Invalid option ID specified"));
}
if (poll->is_anonymous_) {
return promise.set_error(Status::Error(400, "Poll is anonymous"));
}
auto &voters = get_poll_option_voters(poll, poll_id, option_id);
if (voters.pending_queries_.empty() && voters.was_invalidated_ && offset == 0) {
voters.voter_dialog_ids_.clear();
voters.next_offset_.clear();
voters.was_invalidated_ = false;
}
auto cur_offset = narrow_cast<int32>(voters.voter_dialog_ids_.size());
if (offset > cur_offset) {
return promise.set_error(Status::Error(400, "Too big offset specified; voters can be received only consequently"));
}
if (offset < cur_offset) {
vector<DialogId> result;
for (int32 i = offset; i != cur_offset && i - offset < limit; i++) {
result.push_back(voters.voter_dialog_ids_[i]);
}
return promise.set_value(
get_poll_voters_object(max(poll->options_[option_id].voter_count_, cur_offset), std::move(result)));
}
if (poll->options_[option_id].voter_count_ == 0 || (voters.next_offset_.empty() && cur_offset > 0)) {
return promise.set_value(get_poll_voters_object(0, vector<DialogId>()));
}
voters.pending_queries_.push_back(std::move(promise));
if (voters.pending_queries_.size() > 1) {
return;
}
unload_poll_timeout_.cancel_timeout(poll_id.get());
auto query_promise =
PromiseCreator::lambda([actor_id = actor_id(this), poll_id, option_id, offset = voters.next_offset_,
limit](Result<tl_object_ptr<telegram_api::messages_votesList>> &&result) mutable {
send_closure(actor_id, &PollManager::on_get_poll_voters, poll_id, option_id, std::move(offset), limit,
std::move(result));
});
td_->create_handler<GetPollVotersQuery>(std::move(query_promise))
->send(poll_id, message_full_id, BufferSlice(poll->options_[option_id].data_), voters.next_offset_,
max(limit, 10));
}
void PollManager::on_get_poll_voters(PollId poll_id, int32 option_id, string offset, int32 limit,
Result<tl_object_ptr<telegram_api::messages_votesList>> &&result) {
G()->ignore_result_if_closing(result);
auto poll = get_poll(poll_id);
CHECK(poll != nullptr);
if (option_id < 0 || static_cast<size_t>(option_id) >= poll->options_.size()) {
LOG(ERROR) << "Can't process voters for option " << option_id << " in " << poll_id << ", because it has only "
<< poll->options_.size() << " options";
return;
}
if (poll->is_anonymous_) {
// just in case
result = Status::Error(400, "Poll is anonymous");
}
auto &voters = get_poll_option_voters(poll, poll_id, option_id);
if (voters.next_offset_ != offset) {
LOG(ERROR) << "Expected results for option " << option_id << " in " << poll_id << " with offset "
<< voters.next_offset_ << ", but received with " << offset;
return;
}
auto promises = std::move(voters.pending_queries_);
if (promises.empty()) {
LOG(ERROR) << "Have no waiting promises for option " << option_id << " in " << poll_id;
return;
}
if (result.is_error()) {
fail_promises(promises, result.move_as_error());
return;
}
auto vote_list = result.move_as_ok();
td_->user_manager_->on_get_users(std::move(vote_list->users_), "on_get_poll_voters");
td_->chat_manager_->on_get_chats(std::move(vote_list->chats_), "on_get_poll_voters");
voters.next_offset_ = std::move(vote_list->next_offset_);
if (poll->options_[option_id].voter_count_ != vote_list->count_) {
++current_generation_;
update_poll_timeout_.set_timeout_in(poll_id.get(), 0.0);
}
vector<DialogId> dialog_ids;
for (auto &peer_vote : vote_list->votes_) {
DialogId dialog_id;
switch (peer_vote->get_id()) {
case telegram_api::messagePeerVote::ID: {
auto voter = telegram_api::move_object_as<telegram_api::messagePeerVote>(peer_vote);
if (voter->option_ != poll->options_[option_id].data_) {
continue;
}
dialog_id = DialogId(voter->peer_);
break;
}
case telegram_api::messagePeerVoteInputOption::ID: {
auto voter = telegram_api::move_object_as<telegram_api::messagePeerVoteInputOption>(peer_vote);
dialog_id = DialogId(voter->peer_);
break;
}
case telegram_api::messagePeerVoteMultiple::ID: {
auto voter = telegram_api::move_object_as<telegram_api::messagePeerVoteMultiple>(peer_vote);
if (!td::contains(voter->options_, poll->options_[option_id].data_)) {
continue;
}
dialog_id = DialogId(voter->peer_);
break;
}
default:
UNREACHABLE();
}
if (dialog_id.is_valid()) {
dialog_ids.push_back(dialog_id);
} else {
LOG(ERROR) << "Receive " << dialog_id << " as voter in " << poll_id;
}
}
append(voters.voter_dialog_ids_, dialog_ids);
if (static_cast<int32>(dialog_ids.size()) > limit) {
dialog_ids.resize(limit);
}
auto known_voter_count = narrow_cast<int32>(voters.voter_dialog_ids_.size());
if (voters.next_offset_.empty() && known_voter_count != vote_list->count_) {
// invalidate_poll_option_voters(poll, poll_id, option_id);
voters.was_invalidated_ = true;
}
for (auto &promise : promises) {
promise.set_value(get_poll_voters_object(max(vote_list->count_, known_voter_count), vector<DialogId>(dialog_ids)));
}
}
void PollManager::stop_poll(PollId poll_id, MessageFullId message_full_id, unique_ptr<ReplyMarkup> &&reply_markup,
Promise<Unit> &&promise) {
if (is_local_poll_id(poll_id)) {
LOG(ERROR) << "Receive local " << poll_id << " from " << message_full_id << " in stop_poll";
stop_local_poll(poll_id);
promise.set_value(Unit());
return;
}
auto poll = get_poll_editable(poll_id);
CHECK(poll != nullptr);
if (poll->is_closed_) {
promise.set_value(Unit());
return;
}
++current_generation_;
poll->is_closed_ = true;
save_poll(poll, poll_id);
notify_on_poll_update(poll_id);
do_stop_poll(poll_id, message_full_id, std::move(reply_markup), 0, std::move(promise));
}
class PollManager::StopPollLogEvent {
public:
PollId poll_id_;
MessageFullId message_full_id_;
template <class StorerT>
void store(StorerT &storer) const {
td::store(poll_id_, storer);
td::store(message_full_id_, storer);
}
template <class ParserT>
void parse(ParserT &parser) {
td::parse(poll_id_, parser);
td::parse(message_full_id_, parser);
}
};
void PollManager::do_stop_poll(PollId poll_id, MessageFullId message_full_id, unique_ptr<ReplyMarkup> &&reply_markup,
uint64 log_event_id, Promise<Unit> &&promise) {
LOG(INFO) << "Stop " << poll_id << " from " << message_full_id;
CHECK(poll_id.is_valid());
if (log_event_id == 0 && G()->use_message_database() && reply_markup == nullptr) {
StopPollLogEvent log_event{poll_id, message_full_id};
log_event_id =
binlog_add(G()->td_db()->get_binlog(), LogEvent::HandlerType::StopPoll, get_log_event_storer(log_event));
}
unload_poll_timeout_.cancel_timeout(poll_id.get());
bool is_inserted = being_closed_polls_.insert(poll_id).second;
CHECK(is_inserted);
auto new_promise = PromiseCreator::lambda([actor_id = actor_id(this), poll_id, message_full_id, log_event_id,
promise = std::move(promise)](Result<Unit> result) mutable {
send_closure(actor_id, &PollManager::on_stop_poll_finished, poll_id, message_full_id, log_event_id,
std::move(result), std::move(promise));
});
td_->create_handler<StopPollQuery>(std::move(new_promise))->send(message_full_id, std::move(reply_markup), poll_id);
}
void PollManager::on_stop_poll_finished(PollId poll_id, MessageFullId message_full_id, uint64 log_event_id,
Result<Unit> &&result, Promise<Unit> &&promise) {
being_closed_polls_.erase(poll_id);
if (log_event_id != 0 && !G()->close_flag()) {
binlog_erase(G()->td_db()->get_binlog(), log_event_id);
}
if (td_->auth_manager_->is_bot()) {
if ((server_poll_messages_.count(poll_id) > 0 && server_poll_messages_[poll_id].count(message_full_id) > 0) ||
(other_poll_messages_.count(poll_id) > 0 && other_poll_messages_[poll_id].count(message_full_id) > 0)) {
td_->messages_manager_->on_external_update_message_content(message_full_id, "on_stop_poll_finished");
}
}
promise.set_result(std::move(result));
}
void PollManager::stop_local_poll(PollId poll_id) {
CHECK(is_local_poll_id(poll_id));
auto poll = get_poll_editable(poll_id);
CHECK(poll != nullptr);
if (poll->is_closed_) {
return;
}
poll->is_closed_ = true;
notify_on_poll_update(poll_id);
}
double PollManager::get_polling_timeout() const {
double result = td_->is_online() ? 60 : 30 * 60;
return result * Random::fast(70, 100) * 0.01;
}
void PollManager::on_update_poll_timeout(PollId poll_id) {
if (G()->close_flag()) {
return;
}
CHECK(!td_->auth_manager_->is_bot());
CHECK(!is_local_poll_id(poll_id));
auto poll = get_poll(poll_id);
if (poll == nullptr || (poll->is_closed_ && poll->is_updated_after_close_)) {
return;
}
if (pending_answers_.count(poll_id) > 0) {
LOG(INFO) << "Skip fetching results of " << poll_id << ", because it is being voted now";
return;
}
if (server_poll_messages_.count(poll_id) == 0) {
return;
}
auto message_full_id = server_poll_messages_[poll_id].get_random();
LOG(INFO) << "Fetching results of " << poll_id << " from " << message_full_id;
auto query_promise = PromiseCreator::lambda([actor_id = actor_id(this), poll_id, generation = current_generation_](
Result<tl_object_ptr<telegram_api::Updates>> &&result) {
send_closure(actor_id, &PollManager::on_get_poll_results, poll_id, generation, std::move(result));
});
td_->create_handler<GetPollResultsQuery>(std::move(query_promise))->send(poll_id, message_full_id);
}
void PollManager::on_close_poll_timeout(PollId poll_id) {
if (G()->close_flag()) {
return;
}
CHECK(!is_local_poll_id(poll_id));
auto poll = get_poll_editable(poll_id);
if (poll == nullptr || poll->is_closed_ || poll->close_date_ == 0) {
return;
}
LOG(INFO) << "Trying to close " << poll_id << " by timer";
if (poll->close_date_ <= G()->server_time()) {
poll->is_closed_ = true;
save_poll(poll, poll_id);
notify_on_poll_update(poll_id);
// don't send updatePoll for bots, because there is no way to guarantee it
if (!td_->auth_manager_->is_bot()) {
update_poll_timeout_.set_timeout_in(poll_id.get(), 1.0);
}
} else {
close_poll_timeout_.set_timeout_in(poll_id.get(), poll->close_date_ - G()->server_time() + 1e-3);
}
}
void PollManager::on_unload_poll_timeout(PollId poll_id) {
if (G()->close_flag()) {
return;
}
if (is_local_poll_id(poll_id)) {
LOG(INFO) << "Forget " << poll_id;
auto is_deleted = polls_.erase(poll_id) > 0;
CHECK(is_deleted);
CHECK(poll_voters_.count(poll_id) == 0);
CHECK(loaded_from_database_polls_.count(poll_id) == 0);
return;
}
if (!can_unload_poll(poll_id)) {
return;
}
if (!have_poll(poll_id)) {
return;
}
LOG(INFO) << "Unload " << poll_id;
update_poll_timeout_.cancel_timeout(poll_id.get(), "on_unload_poll_timeout");
close_poll_timeout_.cancel_timeout(poll_id.get());
auto is_deleted = polls_.erase(poll_id) > 0;
CHECK(is_deleted);
poll_voters_.erase(poll_id);
loaded_from_database_polls_.erase(poll_id);
unload_poll_timeout_.cancel_timeout(poll_id.get());
}
void PollManager::forget_local_poll(PollId poll_id) {
if (G()->close_flag()) {
return;
}
CHECK(is_local_poll_id(poll_id));
unload_poll_timeout_.set_timeout_in(poll_id.get(), UNLOAD_POLL_DELAY);
}
void PollManager::on_get_poll_results(PollId poll_id, uint64 generation,
Result<tl_object_ptr<telegram_api::Updates>> result) {
G()->ignore_result_if_closing(result);
auto poll = get_poll(poll_id);
if (poll == nullptr) {
return;
}
if (result.is_error()) {
if (!(poll->is_closed_ && poll->is_updated_after_close_) && !G()->close_flag() && !td_->auth_manager_->is_bot()) {
auto timeout = get_polling_timeout();
LOG(INFO) << "Schedule updating of " << poll_id << " in " << timeout;
update_poll_timeout_.add_timeout_in(poll_id.get(), timeout);
}
return;
}
if (result.ok() == nullptr) {
return;
}
if (generation != current_generation_) {
LOG(INFO) << "Receive possibly outdated result of " << poll_id << ", reget it";
if (!(poll->is_closed_ && poll->is_updated_after_close_) && !G()->close_flag() && !td_->auth_manager_->is_bot()) {
update_poll_timeout_.set_timeout_in(poll_id.get(), 0.0);
}
return;
}
td_->updates_manager_->on_get_updates(result.move_as_ok(), Promise<Unit>());
}
void PollManager::on_online() {
if (td_->auth_manager_->is_bot()) {
return;
}
server_poll_messages_.foreach([&](const PollId &poll_id, WaitFreeHashSet<MessageFullId, MessageFullIdHash> &) {
if (update_poll_timeout_.has_timeout(poll_id.get())) {
auto timeout = Random::fast(3, 30);
LOG(INFO) << "Schedule updating of " << poll_id << " in " << timeout;
update_poll_timeout_.set_timeout_in(poll_id.get(), timeout);
}
});
}
PollId PollManager::dup_poll(DialogId dialog_id, PollId poll_id) {
auto poll = get_poll(poll_id);
CHECK(poll != nullptr);
auto question = poll->question_;
::td::remove_unallowed_entities(td_, question, dialog_id);
auto options = transform(poll->options_, [](auto &option) { return option.text_; });
for (auto &option : options) {
::td::remove_unallowed_entities(td_, option, dialog_id);
}
auto explanation = poll->explanation_;
::td::remove_unallowed_entities(td_, explanation, dialog_id);
return create_poll(std::move(question), std::move(options), poll->is_anonymous_, poll->allow_multiple_answers_,
poll->is_quiz_, poll->correct_option_id_, std::move(explanation), poll->open_period_,
poll->open_period_ == 0 ? 0 : G()->unix_time(), false);
}
bool PollManager::has_input_media(PollId poll_id) const {
auto poll = get_poll(poll_id);
CHECK(poll != nullptr);
return !poll->is_quiz_ || poll->correct_option_id_ >= 0;
}
tl_object_ptr<telegram_api::InputMedia> PollManager::get_input_media(PollId poll_id) const {
auto poll = get_poll(poll_id);
CHECK(poll != nullptr);
int32 poll_flags = 0;
if (!poll->is_anonymous_) {
poll_flags |= telegram_api::poll::PUBLIC_VOTERS_MASK;
}
if (poll->allow_multiple_answers_) {
poll_flags |= telegram_api::poll::MULTIPLE_CHOICE_MASK;
}
if (poll->is_quiz_) {
poll_flags |= telegram_api::poll::QUIZ_MASK;
}
if (poll->open_period_ != 0) {
poll_flags |= telegram_api::poll::CLOSE_PERIOD_MASK;
}
if (poll->close_date_ != 0) {
poll_flags |= telegram_api::poll::CLOSE_DATE_MASK;
}
if (poll->is_closed_) {
poll_flags |= telegram_api::poll::CLOSED_MASK;
}
int32 flags = 0;
vector<BufferSlice> correct_answers;
if (poll->is_quiz_) {
flags |= telegram_api::inputMediaPoll::CORRECT_ANSWERS_MASK;
CHECK(poll->correct_option_id_ >= 0);
CHECK(static_cast<size_t>(poll->correct_option_id_) < poll->options_.size());
correct_answers.push_back(BufferSlice(poll->options_[poll->correct_option_id_].data_));
if (!poll->explanation_.text.empty()) {
flags |= telegram_api::inputMediaPoll::SOLUTION_MASK;
}
}
return telegram_api::make_object<telegram_api::inputMediaPoll>(
flags,
telegram_api::make_object<telegram_api::poll>(
0, poll_flags, false /*ignored*/, false /*ignored*/, false /*ignored*/, false /*ignored*/,
get_input_text_with_entities(nullptr, poll->question_, "get_input_media_poll"),
transform(poll->options_, get_input_poll_option), poll->open_period_, poll->close_date_),
std::move(correct_answers), poll->explanation_.text,
get_input_message_entities(td_->user_manager_.get(), poll->explanation_.entities, "get_input_media_poll"));
}
vector<PollManager::PollOption> PollManager::get_poll_options(
vector<telegram_api::object_ptr<telegram_api::pollAnswer>> &&poll_options) {
return transform(std::move(poll_options), [](telegram_api::object_ptr<telegram_api::pollAnswer> &&poll_option) {
PollOption option;
option.text_ = get_formatted_text(nullptr, std::move(poll_option->text_), true, true, "get_poll_options");
remove_unallowed_entities(option.text_);
option.data_ = poll_option->option_.as_slice().str();
return option;
});
}
PollId PollManager::on_get_poll(PollId poll_id, tl_object_ptr<telegram_api::poll> &&poll_server,
tl_object_ptr<telegram_api::pollResults> &&poll_results, const char *source) {
bool is_bot = td_->auth_manager_->is_bot();
bool need_update_poll = poll_id.is_valid() && is_bot;
if (!poll_id.is_valid() && poll_server != nullptr) {
poll_id = PollId(poll_server->id_);
}
if (!poll_id.is_valid() || is_local_poll_id(poll_id)) {
LOG(ERROR) << "Receive " << poll_id << " from " << source << ": " << oneline(to_string(poll_server)) << " "
<< oneline(to_string(poll_results));
return PollId();
}
if (poll_server != nullptr && poll_server->id_ != poll_id.get()) {
LOG(ERROR) << "Receive poll " << poll_server->id_ << " instead of " << poll_id << " from " << source;
return PollId();
}
constexpr size_t MAX_POLL_OPTIONS = 10; // server-side limit
if (poll_server != nullptr &&
(poll_server->answers_.size() <= 1 || poll_server->answers_.size() > 10 * MAX_POLL_OPTIONS)) {
LOG(ERROR) << "Receive " << poll_id << " from " << source
<< " with wrong number of answers: " << to_string(poll_server);
return PollId();
}
if (poll_server != nullptr) {
FlatHashSet<Slice, SliceHash> option_data;
for (auto &answer : poll_server->answers_) {
if (answer->option_.empty()) {
LOG(ERROR) << "Receive " << poll_id << " from " << source
<< " with an empty option data: " << to_string(poll_server);
return PollId();
}
option_data.insert(answer->option_.as_slice());
}
if (option_data.size() != poll_server->answers_.size()) {
LOG(ERROR) << "Receive " << poll_id << " from " << source
<< " with duplicate options: " << to_string(poll_server);
return PollId();
}
}
auto poll = get_poll_force(poll_id);
bool is_changed = false;
bool need_save_to_database = false;
if (poll == nullptr) {
if (poll_server == nullptr) {
LOG(INFO) << "Ignore " << poll_id << ", because have no data about it";
return PollId();
}
auto p = make_unique<Poll>();
poll = p.get();
polls_.set(poll_id, std::move(p));
} else if (poll_results != nullptr && poll_results->min_ && pending_answers_.count(poll_id) != 0) {
LOG(INFO) << "Ignore being answered min-" << poll_id;
return poll_id;
}
CHECK(poll != nullptr);
bool poll_server_is_closed = false;
if (poll_server != nullptr) {
string correct_option_data;
if (poll->correct_option_id_ != -1) {
CHECK(0 <= poll->correct_option_id_ && poll->correct_option_id_ < static_cast<int32>(poll->options_.size()));
correct_option_data = poll->options_[poll->correct_option_id_].data_;
}
bool are_options_changed = false;
if (poll->options_.size() != poll_server->answers_.size()) {
poll->options_ = get_poll_options(std::move(poll_server->answers_));
are_options_changed = true;
} else {
auto options = get_poll_options(std::move(poll_server->answers_));
for (size_t i = 0; i < options.size(); i++) {
if (poll->options_[i].text_ != options[i].text_) {
poll->options_[i].text_ = std::move(options[i].text_);
is_changed = true;
}
if (poll->options_[i].data_ != options[i].data_) {
poll->options_[i].data_ = std::move(options[i].data_);
poll->options_[i].voter_count_ = 0;
poll->options_[i].is_chosen_ = false;
are_options_changed = true;
}
}
}
if (are_options_changed) {
if (!correct_option_data.empty()) {
poll->correct_option_id_ = -1;
for (size_t i = 0; i < poll->options_.size(); i++) {
if (poll->options_[i].data_ == correct_option_data) {
poll->correct_option_id_ = static_cast<int32>(i);
break;
}
}
}
auto it = poll_voters_.find(poll_id);
if (it != poll_voters_.end()) {
for (auto &voters : it->second) {
fail_promises(voters.pending_queries_, Status::Error(500, "The poll was changed"));
}
poll_voters_.erase(it);
}
is_changed = true;
}
auto question = get_formatted_text(nullptr, std::move(poll_server->question_), true, true, "on_get_poll");
remove_unallowed_entities(question);
if (poll->question_ != question) {
poll->question_ = std::move(question);
is_changed = true;
}
poll_server_is_closed = (poll_server->flags_ & telegram_api::poll::CLOSED_MASK) != 0;
if (poll_server_is_closed && !poll->is_closed_) {
poll->is_closed_ = poll_server_is_closed;
is_changed = true;
}
if (poll_server_is_closed && !poll->is_updated_after_close_) {
poll->is_updated_after_close_ = true;
is_changed = true;
}
int32 open_period = poll_server->close_period_;
int32 close_date = poll_server->close_date_;
if (close_date == 0 || open_period == 0) {
close_date = 0;
open_period = 0;
}
if (open_period != poll->open_period_) {
poll->open_period_ = open_period;
if (!poll->is_closed_) {
is_changed = true;
} else {
need_save_to_database = true;
}
}
if (close_date != poll->close_date_) {
poll->close_date_ = close_date;
if (!poll->is_closed_) {
is_changed = true;
if (close_date != 0) {
if (close_date <= G()->server_time()) {
poll->is_closed_ = true;
} else if (!G()->close_flag()) {
close_poll_timeout_.set_timeout_in(poll_id.get(), close_date - G()->server_time() + 1e-3);
}
} else if (!G()->close_flag()) {
close_poll_timeout_.cancel_timeout(poll_id.get());
}
} else {
need_save_to_database = true;
}
}
bool is_anonymous = (poll_server->flags_ & telegram_api::poll::PUBLIC_VOTERS_MASK) == 0;
if (is_anonymous != poll->is_anonymous_) {
poll->is_anonymous_ = is_anonymous;
is_changed = true;
}
bool allow_multiple_answers = (poll_server->flags_ & telegram_api::poll::MULTIPLE_CHOICE_MASK) != 0;
bool is_quiz = (poll_server->flags_ & telegram_api::poll::QUIZ_MASK) != 0;
if (is_quiz && allow_multiple_answers) {
LOG(ERROR) << "Receive quiz " << poll_id << " from " << source << " allowing multiple answers";
allow_multiple_answers = false;
}
if (allow_multiple_answers != poll->allow_multiple_answers_) {
poll->allow_multiple_answers_ = allow_multiple_answers;
is_changed = true;
}
if (is_quiz != poll->is_quiz_) {
poll->is_quiz_ = is_quiz;
is_changed = true;
}
}
CHECK(poll_results != nullptr);
bool is_min = poll_results->min_;
bool has_total_voters = (poll_results->flags_ & telegram_api::pollResults::TOTAL_VOTERS_MASK) != 0;
if (has_total_voters && poll_results->total_voters_ != poll->total_voter_count_) {
poll->total_voter_count_ = poll_results->total_voters_;
if (poll->total_voter_count_ < 0) {
LOG(ERROR) << "Receive " << poll->total_voter_count_ << " voters in " << poll_id << " from " << source;
poll->total_voter_count_ = 0;
}
is_changed = true;
}
int32 correct_option_id = -1;
for (auto &poll_result : poll_results->results_) {
Slice data = poll_result->option_.as_slice();
for (size_t option_index = 0; option_index < poll->options_.size(); option_index++) {
auto &option = poll->options_[option_index];
if (option.data_ != data) {
continue;
}
if (!is_min) {
bool is_chosen = poll_result->chosen_;
if (is_chosen != option.is_chosen_) {
option.is_chosen_ = is_chosen;
is_changed = true;
}
}
if (!is_min || poll_server_is_closed) {
bool is_correct = poll_result->correct_;
if (is_correct) {
if (correct_option_id != -1) {
LOG(ERROR) << "Receive more than 1 correct answers " << correct_option_id << " and " << option_index
<< " in " << poll_id << " from " << source;
}
correct_option_id = static_cast<int32>(option_index);
}
} else {
correct_option_id = poll->correct_option_id_;
}
if (poll_result->voters_ < 0) {
LOG(ERROR) << "Receive " << poll_result->voters_ << " voters for an option in " << poll_id << " from "
<< source;
poll_result->voters_ = 0;
}
if (option.is_chosen_ && poll_result->voters_ == 0) {
LOG(ERROR) << "Receive 0 voters for the chosen option " << option_index << " in " << poll_id << " from "
<< source;
poll_result->voters_ = 1;
}
if (poll_result->voters_ > poll->total_voter_count_) {
LOG(ERROR) << "Have only " << poll->total_voter_count_ << " poll voters, but there are " << poll_result->voters_
<< " voters for an option in " << poll_id << " from " << source;
poll->total_voter_count_ = poll_result->voters_;
}
auto max_voter_count = std::numeric_limits<int32>::max() / narrow_cast<int32>(poll->options_.size()) - 2;
if (poll_result->voters_ > max_voter_count) {
LOG(ERROR) << "Have too many " << poll_result->voters_ << " poll voters for an option in " << poll_id
<< " from " << source;
poll_result->voters_ = max_voter_count;
}
if (poll_result->voters_ != option.voter_count_) {
invalidate_poll_option_voters(poll, poll_id, option_index);
option.voter_count_ = poll_result->voters_;
is_changed = true;
}
}
}
if (!poll_results->results_.empty() && has_total_voters) {
int32 max_total_voter_count = 0;
for (auto &option : poll->options_) {
max_total_voter_count += option.voter_count_;
}
if (poll->total_voter_count_ > max_total_voter_count && max_total_voter_count != 0) {
LOG(ERROR) << "Have only " << max_total_voter_count << " total poll voters, but there are "
<< poll->total_voter_count_ << " voters in " << poll_id << " from " << source;
poll->total_voter_count_ = max_total_voter_count;
}
}
auto explanation = get_formatted_text(td_->user_manager_.get(), std::move(poll_results->solution_),
std::move(poll_results->solution_entities_), true, false, source);
if (poll->is_quiz_) {
if (poll->correct_option_id_ != correct_option_id) {
if (correct_option_id == -1 && poll->correct_option_id_ != -1) {
LOG(ERROR) << "Can't change correct option of " << poll_id << " from " << poll->correct_option_id_ << " to "
<< correct_option_id << " from " << source;
} else {
poll->correct_option_id_ = correct_option_id;
is_changed = true;
}
}
if (poll->explanation_ != explanation && (!is_min || poll_server_is_closed)) {
if (explanation.text.empty() && !poll->explanation_.text.empty()) {
LOG(ERROR) << "Can't change known " << poll_id << " explanation to empty from " << source;
} else {
poll->explanation_ = std::move(explanation);
is_changed = true;
}
}
} else {
if (correct_option_id != -1) {
LOG(ERROR) << "Receive correct option " << correct_option_id << " in non-quiz " << poll_id << " from " << source;
}
if (!explanation.text.empty()) {
LOG(ERROR) << "Receive explanation " << explanation << " in non-quiz " << poll_id << " from " << source;
}
}
vector<DialogId> recent_voter_dialog_ids;
if (!is_bot) {
for (auto &peer_id : poll_results->recent_voters_) {
DialogId dialog_id(peer_id);
if (dialog_id.is_valid()) {
recent_voter_dialog_ids.push_back(dialog_id);
} else {
LOG(ERROR) << "Receive " << dialog_id << " as recent voter in " << poll_id << " from " << source;
}
}
}
if (poll->is_anonymous_ && !recent_voter_dialog_ids.empty()) {
LOG(ERROR) << "Receive anonymous " << poll_id << " with recent voters " << recent_voter_dialog_ids << " from "
<< source;
recent_voter_dialog_ids.clear();
}
if (recent_voter_dialog_ids != poll->recent_voter_dialog_ids_) {
poll->recent_voter_dialog_ids_ = std::move(recent_voter_dialog_ids);
invalidate_poll_voters(poll, poll_id);
is_changed = true;
}
if (!is_bot && !poll->is_closed_ && !G()->close_flag()) {
auto timeout = get_polling_timeout();
LOG(INFO) << "Schedule updating of " << poll_id << " in " << timeout;
update_poll_timeout_.set_timeout_in(poll_id.get(), timeout);
}
if (is_changed || need_save_to_database) {
save_poll(poll, poll_id);
}
if (is_changed) {
notify_on_poll_update(poll_id);
}
if (need_update_poll && (is_changed || (poll->is_closed_ && being_closed_polls_.erase(poll_id) != 0))) {
send_closure(G()->td(), &Td::send_update, td_api::make_object<td_api::updatePoll>(get_poll_object(poll_id, poll)));
schedule_poll_unload(poll_id);
}
return poll_id;
}
void PollManager::on_get_poll_vote(PollId poll_id, DialogId dialog_id, vector<BufferSlice> &&options) {
if (!poll_id.is_valid()) {
LOG(ERROR) << "Receive updateMessagePollVote about invalid " << poll_id;
return;
}
if (!dialog_id.is_valid()) {
LOG(ERROR) << "Receive updateMessagePollVote from invalid " << dialog_id;
return;
}
CHECK(td_->auth_manager_->is_bot());
vector<int32> option_ids;
for (auto &option : options) {
auto slice = option.as_slice();
if (slice.size() != 1 || slice[0] < '0' || slice[0] > '9') {
LOG(INFO) << "Receive updateMessagePollVote with unexpected option \"" << format::escaped(slice) << '"';
return;
}
option_ids.push_back(static_cast<int32>(slice[0] - '0'));
}
send_closure(
G()->td(), &Td::send_update,
td_api::make_object<td_api::updatePollAnswer>(
poll_id.get(), get_message_sender_object(td_, dialog_id, "on_get_poll_vote"), std::move(option_ids)));
}
void PollManager::on_binlog_events(vector<BinlogEvent> &&events) {
if (G()->close_flag()) {
return;
}
bool have_old_message_database = G()->use_message_database() && !G()->td_db()->was_dialog_db_created();
for (auto &event : events) {
switch (event.type_) {
case LogEvent::HandlerType::SetPollAnswer: {
if (!have_old_message_database) {
binlog_erase(G()->td_db()->get_binlog(), event.id_);
break;
}
SetPollAnswerLogEvent log_event;
log_event_parse(log_event, event.get_data()).ensure();
auto dialog_id = log_event.message_full_id_.get_dialog_id();
Dependencies dependencies;
dependencies.add_dialog_dependencies(dialog_id); // do not load the dialog itself
dependencies.resolve_force(td_, "SetPollAnswerLogEvent");
do_set_poll_answer(log_event.poll_id_, log_event.message_full_id_, std::move(log_event.options_), event.id_,
Auto());
break;
}
case LogEvent::HandlerType::StopPoll: {
if (!have_old_message_database) {
binlog_erase(G()->td_db()->get_binlog(), event.id_);
break;
}
StopPollLogEvent log_event;
log_event_parse(log_event, event.get_data()).ensure();
auto dialog_id = log_event.message_full_id_.get_dialog_id();
Dependencies dependencies;
dependencies.add_dialog_dependencies(dialog_id); // do not load the dialog itself
dependencies.resolve_force(td_, "StopPollLogEvent");
do_stop_poll(log_event.poll_id_, log_event.message_full_id_, nullptr, event.id_, Auto());
break;
}
default:
LOG(FATAL) << "Unsupported log event type " << event.type_;
}
}
}
} // namespace td
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