tdlight-telegram-bot-api/telegram-bot-api/telegram-bot-api.cpp
2020-11-05 17:55:13 +03:00

527 lines
18 KiB
C++

//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2020
//
// 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 "telegram-bot-api/ClientManager.h"
#include "telegram-bot-api/ClientParameters.h"
#include "telegram-bot-api/HttpConnection.h"
#include "telegram-bot-api/HttpServer.h"
#include "telegram-bot-api/HttpStatConnection.h"
#include "telegram-bot-api/Query.h"
#include "telegram-bot-api/Stats.h"
#include "td/telegram/ClientActor.h"
#include "td/db/binlog/Binlog.h"
#include "td/db/TQueue.h"
#include "td/net/GetHostByNameActor.h"
#include "td/net/HttpInboundConnection.h"
#include "td/actor/actor.h"
#include "td/actor/PromiseFuture.h"
#include "td/utils/buffer.h"
#include "td/utils/common.h"
#include "td/utils/crypto.h"
#include "td/utils/ExitGuard.h"
#include "td/utils/FileLog.h"
#include "td/utils/format.h"
//#include "td/utils/GitInfo.h"
#include "td/utils/logging.h"
#include "td/utils/MemoryLog.h"
#include "td/utils/misc.h"
#include "td/utils/OptionParser.h"
#include "td/utils/port/path.h"
#include "td/utils/port/rlimit.h"
#include "td/utils/port/signals.h"
#include "td/utils/port/stacktrace.h"
#include "td/utils/port/user.h"
#include "td/utils/Slice.h"
#include "td/utils/Status.h"
#include "td/utils/Time.h"
#include "memprof/memprof.h"
#include <algorithm>
#include <atomic>
#include <cstdlib>
#include <memory>
#include <tuple>
namespace telegram_bot_api {
static std::atomic_flag need_rotate_log;
static void rotate_log_signal_handler(int sig) {
need_rotate_log.clear();
}
static std::atomic_flag need_quit;
static void quit_signal_handler(int sig) {
need_quit.clear();
}
static td::MemoryLog<1 << 20> memory_log;
void print_log() {
auto buf = memory_log.get_buffer();
auto pos = memory_log.get_pos();
td::signal_safe_write("------- Log dump -------\n");
td::signal_safe_write(buf.substr(pos), false);
td::signal_safe_write(buf.substr(0, pos), false);
td::signal_safe_write("\n", false);
td::signal_safe_write("------------------------\n");
}
static void fail_signal_handler(int sig) {
td::signal_safe_write_signal_number(sig);
td::Stacktrace::PrintOptions options;
options.use_gdb = true;
td::Stacktrace::print_to_stderr(options);
print_log();
_Exit(EXIT_FAILURE);
}
static std::atomic_flag need_change_verbosity_level;
static void change_verbosity_level_signal_handler(int sig) {
need_change_verbosity_level.clear();
}
static std::atomic_flag need_dump_log;
static void dump_log_signal_handler(int sig) {
need_dump_log.clear();
}
static void sigsegv_signal_handler(int signum, void *addr) {
td::signal_safe_write_pointer(addr);
fail_signal_handler(signum);
}
int main(int argc, char *argv[]) {
SET_VERBOSITY_LEVEL(VERBOSITY_NAME(FATAL));
td::ExitGuard exit_guard;
need_rotate_log.test_and_set();
need_quit.test_and_set();
need_change_verbosity_level.test_and_set();
need_dump_log.test_and_set();
td::Stacktrace::init();
td::setup_signals_alt_stack().ensure();
td::set_signal_handler(td::SignalType::User, rotate_log_signal_handler).ensure();
td::ignore_signal(td::SignalType::HangUp).ensure();
td::ignore_signal(td::SignalType::Pipe).ensure();
td::set_signal_handler(td::SignalType::Quit, quit_signal_handler).ensure();
td::set_signal_handler(td::SignalType::Abort, fail_signal_handler).ensure();
td::set_signal_handler(td::SignalType::Other, fail_signal_handler).ensure();
td::set_extended_signal_handler(td::SignalType::Error, sigsegv_signal_handler).ensure();
td::set_runtime_signal_handler(0, change_verbosity_level_signal_handler).ensure();
td::set_runtime_signal_handler(1, dump_log_signal_handler).ensure();
td::init_openssl_threads();
auto start_time = td::Time::now();
auto shared_data = std::make_shared<SharedData>();
auto parameters = std::make_unique<ClientParameters>();
parameters->shared_data_ = shared_data;
parameters->start_timestamp_ = start_time;
auto net_query_stats = td::create_net_query_stats();
parameters->net_query_stats_ = net_query_stats;
td::OptionParser options;
bool need_print_usage = false;
int http_port = 8081;
int http_stat_port = 0;
td::string log_file_path;
int verbosity_level = 0;
td::int64 log_max_file_size = 2000000000;
td::string working_directory;
td::string temporary_directory;
td::string username;
td::string groupname;
td::uint64 max_connections = 0;
ClientManager::TokenRange token_range{0, 1};
parameters->api_id_ = [](auto x) -> td::int32 {
if (x) {
return td::to_integer<td::int32>(td::Slice(x));
}
return 0;
}(std::getenv("TELEGRAM_API_ID"));
parameters->api_hash_ = [](auto x) -> std::string {
if (x) {
return x;
}
return std::string();
}(std::getenv("TELEGRAM_API_HASH"));
options.set_usage(td::Slice(argv[0]), "--api-id=<arg> --api-hash=<arg> [--local] [OPTION]...");
options.set_description("Telegram Bot API server");
options.add_option('h', "help", "display this help text and exit", [&] { need_print_usage = true; });
options.add_option('\0', "local", "allow the Bot API server to serve local requests",
[&] { parameters->local_mode_ = true; });
options.add_checked_option(
'\0', "api-id",
"application identifier for Telegram API access, which can be obtained at https://my.telegram.org (defaults to "
"the value of the TELEGRAM_API_ID environment variable)",
td::OptionParser::parse_integer(parameters->api_id_));
options.add_option('\0', "api-hash",
"application identifier hash for Telegram API access, which can be obtained at "
"https://my.telegram.org (defaults to the value of the TELEGRAM_API_HASH environment variable)",
td::OptionParser::parse_string(parameters->api_hash_));
options.add_checked_option('p', "http-port", PSLICE() << "HTTP listening port (default is " << http_port << ")",
td::OptionParser::parse_integer(http_port));
options.add_checked_option('s', "http-stat-port", "HTTP statistics port",
td::OptionParser::parse_integer(http_stat_port));
options.add_option('d', "dir", "server working directory", td::OptionParser::parse_string(working_directory));
options.add_option('t', "temp-dir", "directory for storing HTTP server temporary files",
td::OptionParser::parse_string(temporary_directory));
options.add_checked_option(
'\0', "filter", "\"<remainder>/<modulo>\". Allow only bots with 'bot_user_id % modulo == remainder'",
[&](td::Slice rem_mod) {
td::Slice rem;
td::Slice mod;
std::tie(rem, mod) = td::split(rem_mod, '/');
TRY_RESULT(rem_i, td::to_integer_safe<td::uint64>(rem));
TRY_RESULT(mod_i, td::to_integer_safe<td::uint64>(mod));
if (rem_i < 0 || rem_i >= mod_i) {
return td::Status::Error("Wrong argument specified: ensure that 0 <= remainder < modulo");
}
token_range = {rem_i, mod_i};
return td::Status::OK();
});
options.add_checked_option('\0', "max-webhook-connections",
"default value of the maximum webhook connections per bot",
td::OptionParser::parse_integer(parameters->default_max_webhook_connections_));
options.add_option('l', "log", "path to the file where the log will be written",
td::OptionParser::parse_string(log_file_path));
options.add_checked_option('v', "verbosity", "log verbosity level", td::OptionParser::parse_integer(verbosity_level));
options.add_checked_option(
'\0', "log-max-file-size",
PSLICE() << "maximum size of the log file in bytes before it will be auto-rotated (default is "
<< log_max_file_size << ")",
td::OptionParser::parse_integer(log_max_file_size));
options.add_option('u', "username", "effective user name to switch to", td::OptionParser::parse_string(username));
options.add_option('g', "groupname", "effective group name to switch to", td::OptionParser::parse_string(groupname));
options.add_checked_option('c', "max-connections", "maximum number of open file descriptors",
td::OptionParser::parse_integer(max_connections));
options.add_checked_option(
'\0', "proxy", PSLICE() << "HTTP proxy server for outgoing webhook requests in the format http://host:port",
[&](td::Slice address) {
if (td::begins_with(address, "http://")) {
address.remove_prefix(7);
} else if (td::begins_with(address, "https://")) {
address.remove_prefix(8);
}
return parameters->webhook_proxy_ip_address_.init_host_port(address.str());
});
options.add_check([&] {
if (parameters->api_id_ <= 0 || parameters->api_hash_.empty()) {
return td::Status::Error("You must provide valid api-id and api-hash obtained at https://my.telegram.org");
}
return td::Status::OK();
});
options.add_check([&] {
if (verbosity_level < 0) {
return td::Status::Error("Wrong verbosity level specified");
}
return td::Status::OK();
});
auto r_non_options = options.run(argc, argv, 0);
if (need_print_usage) {
LOG(PLAIN) << options;
return 0;
}
if (r_non_options.is_error()) {
LOG(PLAIN) << argv[0] << ": " << r_non_options.error();
LOG(PLAIN) << options;
return 1;
}
class CombineLog : public td::LogInterface {
public:
void append(td::CSlice slice, int log_level) override {
if (first_ && log_level <= first_verbosity_level_) {
first_->append(slice, log_level);
}
if (second_ && log_level <= second_verbosity_level_) {
second_->append(slice, log_level);
}
}
void set_first(LogInterface *first) {
first_ = first;
}
void set_second(LogInterface *second) {
second_ = second;
}
void set_first_verbosity_level(int verbosity_level) {
first_verbosity_level_ = verbosity_level;
}
void set_second_verbosity_level(int verbosity_level) {
second_verbosity_level_ = verbosity_level;
}
void rotate() override {
if (first_) {
first_->rotate();
}
if (second_) {
second_->rotate();
}
}
td::vector<td::string> get_file_paths() override {
td::vector<td::string> result;
if (first_) {
td::append(result, first_->get_file_paths());
}
if (second_) {
td::append(result, second_->get_file_paths());
}
return result;
}
private:
LogInterface *first_ = nullptr;
int first_verbosity_level_ = VERBOSITY_NAME(FATAL);
LogInterface *second_ = nullptr;
int second_verbosity_level_ = VERBOSITY_NAME(FATAL);
};
CombineLog log;
log.set_first(td::default_log_interface);
log.set_second(&memory_log);
td::log_interface = &log;
td::FileLog file_log;
td::TsLog ts_log(&file_log);
auto init_status = [&] {
if (max_connections != 0) {
TRY_STATUS_PREFIX(td::set_resource_limit(td::ResourceLimitType::NoFile, max_connections),
"Can't set file descriptor limit: ");
}
if (!username.empty()) {
TRY_STATUS_PREFIX(td::change_user(username, groupname), "Can't change effective user: ");
}
if (!working_directory.empty()) {
TRY_STATUS_PREFIX(td::chdir(working_directory), "Can't set working directory: ");
}
if (!temporary_directory.empty()) {
TRY_STATUS_PREFIX(td::set_temporary_dir(temporary_directory), "Can't set temporary directory: ");
}
if (!log_file_path.empty()) {
TRY_STATUS_PREFIX(file_log.init(log_file_path, log_max_file_size), "Can't open log file: ");
log.set_first(&ts_log);
}
return td::Status::OK();
}();
if (init_status.is_error()) {
LOG(PLAIN) << init_status.error();
LOG(PLAIN) << options;
return 1;
}
if (parameters->default_max_webhook_connections_ <= 0) {
parameters->default_max_webhook_connections_ = parameters->local_mode_ ? 100 : 40;
}
::td::VERBOSITY_NAME(dns_resolver) = VERBOSITY_NAME(WARNING);
int memory_verbosity_level = td::max(VERBOSITY_NAME(INFO), verbosity_level);
SET_VERBOSITY_LEVEL(memory_verbosity_level);
log.set_first_verbosity_level(verbosity_level);
log.set_second_verbosity_level(memory_verbosity_level);
// LOG(WARNING) << "Bot API server with commit " << td::GitInfo::commit() << ' '
// << (td::GitInfo::is_dirty() ? "(dirty)" : "") << " started";
LOG(WARNING) << "Bot API server started";
const int threads_n = 5; // +3 for Td, one for slow HTTP connections and one for DNS resolving
td::ConcurrentScheduler sched;
sched.init(threads_n);
td::GetHostByNameActor::Options get_host_by_name_options;
get_host_by_name_options.scheduler_id = threads_n;
parameters->get_host_by_name_actor_id_ =
sched.create_actor_unsafe<td::GetHostByNameActor>(0, "GetHostByName", std::move(get_host_by_name_options))
.release();
auto client_manager =
sched.create_actor_unsafe<ClientManager>(0, "ClientManager", std::move(parameters), token_range).release();
sched
.create_actor_unsafe<HttpServer>(
0, "HttpServer", http_port,
[client_manager, shared_data] {
return td::ActorOwn<td::HttpInboundConnection::Callback>(
td::create_actor<HttpConnection>("HttpConnection", client_manager, shared_data));
})
.release();
if (http_stat_port != 0) {
sched
.create_actor_unsafe<HttpServer>(
0, "HttpStatsServer", http_stat_port,
[client_manager] {
return td::ActorOwn<td::HttpInboundConnection::Callback>(
td::create_actor<HttpStatConnection>("HttpStatConnection", client_manager));
})
.release();
}
sched.start();
double last_cron_time = start_time;
double last_dump_time = start_time - 1000.0;
double last_tqueue_gc_time = start_time - 1000.0;
td::int64 tqueue_deleted_events = 0;
td::int64 last_tqueue_deleted_events = 0;
bool close_flag = false;
std::atomic_bool can_quit{false};
ServerCpuStat::instance(); // create ServerCpuStat instance
while (true) {
sched.run_main(1);
if (!need_rotate_log.test_and_set()) {
td::log_interface->rotate();
}
if (!need_quit.test_and_set()) {
if (close_flag) {
LOG(WARNING) << "Receive stop signal again. Exit immediately...";
std::_Exit(0);
}
LOG(WARNING) << "Stopping engine by a signal";
close_flag = true;
auto guard = sched.get_main_guard();
send_closure(client_manager, &ClientManager::close, td::PromiseCreator::lambda([&can_quit](td::Unit) {
can_quit.store(true);
td::Scheduler::instance()->yield();
}));
}
if (can_quit.exchange(false)) {
break;
}
if (!need_change_verbosity_level.test_and_set()) {
auto current_global_verbosity_level = GET_VERBOSITY_LEVEL();
SET_VERBOSITY_LEVEL(256 - current_global_verbosity_level);
verbosity_level = 256 - verbosity_level;
log.set_first_verbosity_level(verbosity_level);
}
auto next_verbosity_level = shared_data->next_verbosity_level_.exchange(-1);
if (next_verbosity_level != -1) {
verbosity_level = next_verbosity_level;
memory_verbosity_level = td::max(VERBOSITY_NAME(INFO), verbosity_level);
SET_VERBOSITY_LEVEL(memory_verbosity_level);
log.set_first_verbosity_level(verbosity_level);
log.set_second_verbosity_level(memory_verbosity_level);
}
if (!need_dump_log.test_and_set()) {
print_log();
}
double now = td::Time::now();
if (now > last_cron_time + 1.0) {
last_cron_time = now;
ServerCpuStat::update(now);
}
if (now > last_tqueue_gc_time + 60.0) {
auto unix_time = shared_data->get_unix_time(now);
LOG(INFO) << "Run TQueue GC at " << unix_time;
last_tqueue_gc_time = now;
auto guard = sched.get_main_guard();
auto deleted_events = shared_data->tqueue_->run_gc(unix_time);
LOG(INFO) << "TQueue GC deleted " << deleted_events << " events";
tqueue_deleted_events += deleted_events;
if (tqueue_deleted_events > last_tqueue_deleted_events + 10000) {
LOG(WARNING) << "TQueue GC already deleted " << tqueue_deleted_events << " events since the start";
last_tqueue_deleted_events = tqueue_deleted_events;
}
}
if (now > last_dump_time + 300.0) {
last_dump_time = now;
if (is_memprof_on()) {
LOG(WARNING) << "Memory dump:";
td::vector<AllocInfo> v;
dump_alloc([&](const AllocInfo &info) { v.push_back(info); });
std::sort(v.begin(), v.end(), [](const AllocInfo &a, const AllocInfo &b) { return a.size > b.size; });
size_t total_size = 0;
size_t other_size = 0;
int count = 0;
for (auto &info : v) {
if (count++ < 50) {
LOG(WARNING) << td::format::as_size(info.size) << td::format::as_array(info.backtrace);
} else {
other_size += info.size;
}
total_size += info.size;
}
LOG(WARNING) << td::tag("other", td::format::as_size(other_size));
LOG(WARNING) << td::tag("total", td::format::as_size(total_size));
LOG(WARNING) << td::tag("total traces", get_ht_size());
LOG(WARNING) << td::tag("fast_backtrace_success_rate", get_fast_backtrace_success_rate());
}
LOG(WARNING) << td::tag("buffer_mem", td::format::as_size(td::BufferAllocator::get_buffer_mem()));
LOG(WARNING) << td::tag("buffer_slice_size", td::format::as_size(td::BufferAllocator::get_buffer_slice_size()));
auto query_count = shared_data->query_count_.load();
LOG(WARNING) << td::tag("pending queries", query_count);
td::uint64 i = 0;
bool was_gap = false;
for (auto end = &shared_data->query_list_, cur = end->prev; cur != end; cur = cur->prev, i++) {
if (i < 20 || i > query_count - 20 || i % (query_count / 50 + 1) == 0) {
if (was_gap) {
LOG(WARNING) << "...";
was_gap = false;
}
LOG(WARNING) << static_cast<Query &>(*cur);
} else {
was_gap = true;
}
}
td::dump_pending_network_queries(*net_query_stats);
}
}
LOG(WARNING) << "--------------------FINISH ENGINE--------------------";
CHECK(net_query_stats.use_count() == 1);
net_query_stats = nullptr;
sched.finish();
SET_VERBOSITY_LEVEL(VERBOSITY_NAME(FATAL));
td::log_interface = td::default_log_interface;
return 0;
}
} // namespace telegram_bot_api
int main(int argc, char *argv[]) {
return telegram_bot_api::main(argc, argv);
}