tdlight/td/telegram/net/NetQueryCreator.cpp

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//
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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/net/NetQueryCreator.h"
#include "td/telegram/AuthManager.h"
#include "td/telegram/Global.h"
#include "td/telegram/Td.h"
#include "td/telegram/telegram_api.h"
#include "td/actor/actor.h"
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#include "td/utils/buffer.h"
#include "td/utils/format.h"
#include "td/utils/Gzip.h"
#include "td/utils/logging.h"
#include "td/utils/Storer.h"
namespace td {
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NetQueryCreator::NetQueryCreator(std::shared_ptr<NetQueryStats> net_query_stats)
: net_query_stats_(std::move(net_query_stats))
, current_scheduler_id_(Scheduler::instance() == nullptr ? -2 : Scheduler::instance()->sched_id()) {
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object_pool_.set_check_empty(true);
}
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NetQueryPtr NetQueryCreator::create(const telegram_api::Function &function, vector<ChainId> chain_ids, DcId dc_id,
NetQuery::Type type) {
return create(UniqueId::next(), function, std::move(chain_ids), dc_id, type, NetQuery::AuthFlag::On);
}
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NetQueryPtr NetQueryCreator::create(uint64 id, const telegram_api::Function &function, vector<ChainId> &&chain_ids,
DcId dc_id, NetQuery::Type type, NetQuery::AuthFlag auth_flag) {
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LOG(INFO) << "Create query " << to_string(function);
auto storer = DefaultStorer<telegram_api::Function>(function);
BufferSlice slice(storer.size());
auto real_size = storer.store(slice.as_mutable_slice().ubegin());
LOG_CHECK(real_size == slice.size()) << real_size << " " << slice.size() << " "
<< format::as_hex_dump<4>(slice.as_slice());
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size_t min_gzipped_size = 128;
int32 tl_constructor = function.get_id();
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int32 total_timeout_limit = 60;
if (Scheduler::instance() != nullptr && current_scheduler_id_ == Scheduler::instance()->sched_id() &&
!G()->close_flag()) {
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auto td = G()->td();
if (!td.empty()) {
auto auth_manager = td.get_actor_unsafe()->auth_manager_.get();
if (auth_manager != nullptr && auth_manager->is_bot()) {
total_timeout_limit = 8;
min_gzipped_size = 1024;
}
if ((auth_manager == nullptr || !auth_manager->was_authorized()) && auth_flag == NetQuery::AuthFlag::On &&
tl_constructor != telegram_api::auth_exportAuthorization::ID &&
tl_constructor != telegram_api::auth_bindTempAuthKey::ID) {
LOG(ERROR) << "Send query before authorization: " << to_string(function);
}
}
}
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auto gzip_flag = slice.size() < min_gzipped_size ? NetQuery::GzipFlag::Off : NetQuery::GzipFlag::On;
if (slice.size() >= 16384) {
// test compression ratio for the middle part
// if it is less than 0.9, then try to compress the whole request
size_t TESTED_SIZE = 1024;
BufferSlice compressed_part = gzencode(slice.as_slice().substr((slice.size() - TESTED_SIZE) / 2, TESTED_SIZE), 0.9);
if (compressed_part.empty()) {
gzip_flag = NetQuery::GzipFlag::Off;
}
}
if (gzip_flag == NetQuery::GzipFlag::On) {
BufferSlice compressed = gzencode(slice.as_slice(), 0.9);
if (compressed.empty()) {
gzip_flag = NetQuery::GzipFlag::Off;
} else {
slice = std::move(compressed);
}
}
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auto query = object_pool_.create(id, std::move(slice), dc_id, type, auth_flag, gzip_flag, tl_constructor,
total_timeout_limit, net_query_stats_.get(), std::move(chain_ids));
query->set_cancellation_token(query.generation());
return query;
}
} // namespace td