1523 lines
54 KiB
C++
1523 lines
54 KiB
C++
//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2019
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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/net/ConnectionCreator.h"
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#include "td/telegram/telegram_api.h"
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#include "td/telegram/ConfigManager.h"
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#include "td/telegram/ConfigShared.h"
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#include "td/telegram/Global.h"
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#include "td/telegram/logevent/LogEvent.h"
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#include "td/telegram/MessagesManager.h"
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#include "td/telegram/net/MtprotoHeader.h"
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#include "td/telegram/net/NetQueryDispatcher.h"
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#include "td/telegram/net/NetType.h"
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#include "td/telegram/StateManager.h"
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#include "td/telegram/TdDb.h"
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#include "td/mtproto/PingConnection.h"
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#include "td/mtproto/RawConnection.h"
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#include "td/net/GetHostByNameActor.h"
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#include "td/net/HttpProxy.h"
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#include "td/net/Socks5.h"
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#include "td/net/TransparentProxy.h"
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#include "td/utils/base64.h"
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#include "td/utils/format.h"
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#include "td/utils/logging.h"
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#include "td/utils/misc.h"
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#include "td/utils/port/IPAddress.h"
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#include "td/utils/ScopeGuard.h"
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#include "td/utils/Time.h"
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#include "td/utils/tl_helpers.h"
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#include <algorithm>
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#include <utility>
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namespace td {
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int VERBOSITY_NAME(connections) = VERBOSITY_NAME(INFO);
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namespace detail {
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class StatsCallback final : public mtproto::RawConnection::StatsCallback {
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public:
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StatsCallback(std::shared_ptr<NetStatsCallback> net_stats_callback, ActorId<ConnectionCreator> connection_creator,
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size_t hash, DcOptionsSet::Stat *option_stat)
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: net_stats_callback_(std::move(net_stats_callback))
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, connection_creator_(std::move(connection_creator))
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, hash_(hash)
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, option_stat_(option_stat) {
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}
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void on_read(uint64 bytes) final {
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net_stats_callback_->on_read(bytes);
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}
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void on_write(uint64 bytes) final {
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net_stats_callback_->on_write(bytes);
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}
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void on_pong() final {
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if (option_stat_) {
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send_lambda(connection_creator_, [stat = option_stat_] { stat->on_ok(); });
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}
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send_closure(connection_creator_, &ConnectionCreator::on_pong, hash_);
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}
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void on_error() final {
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if (option_stat_) {
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send_lambda(connection_creator_, [stat = option_stat_] { stat->on_error(); });
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}
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}
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void on_mtproto_error() final {
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send_closure(connection_creator_, &ConnectionCreator::on_mtproto_error, hash_);
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}
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private:
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std::shared_ptr<NetStatsCallback> net_stats_callback_;
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ActorId<ConnectionCreator> connection_creator_;
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size_t hash_;
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DcOptionsSet::Stat *option_stat_;
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};
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class PingActor : public Actor {
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public:
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PingActor(unique_ptr<mtproto::RawConnection> raw_connection, Promise<unique_ptr<mtproto::RawConnection>> promise,
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ActorShared<> parent)
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: promise_(std::move(promise)), parent_(std::move(parent)) {
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ping_connection_ = make_unique<mtproto::PingConnection>(std::move(raw_connection), 2);
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}
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private:
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unique_ptr<mtproto::PingConnection> ping_connection_;
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Promise<unique_ptr<mtproto::RawConnection>> promise_;
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ActorShared<> parent_;
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void start_up() override {
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Scheduler::subscribe(ping_connection_->get_poll_info().extract_pollable_fd(this));
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set_timeout_in(10);
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yield();
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}
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void hangup() override {
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finish(Status::Error("Cancelled"));
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stop();
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}
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void tear_down() override {
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finish(Status::OK());
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}
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void loop() override {
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auto status = ping_connection_->flush();
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if (status.is_error()) {
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finish(std::move(status));
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return stop();
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}
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if (ping_connection_->was_pong()) {
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finish(Status::OK());
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return stop();
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}
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}
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void timeout_expired() override {
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finish(Status::Error("Pong timeout expired"));
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stop();
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}
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void finish(Status status) {
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auto raw_connection = ping_connection_->move_as_raw_connection();
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if (!raw_connection) {
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CHECK(!promise_);
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return;
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}
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Scheduler::unsubscribe(raw_connection->get_poll_info().get_pollable_fd_ref());
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if (promise_) {
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if (status.is_error()) {
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if (raw_connection->stats_callback()) {
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raw_connection->stats_callback()->on_error();
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}
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raw_connection->close();
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promise_.set_error(std::move(status));
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} else {
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raw_connection->rtt_ = ping_connection_->rtt();
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if (raw_connection->stats_callback()) {
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raw_connection->stats_callback()->on_pong();
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}
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promise_.set_value(std::move(raw_connection));
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}
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} else {
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if (raw_connection->stats_callback()) {
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raw_connection->stats_callback()->on_error();
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}
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raw_connection->close();
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}
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}
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};
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} // namespace detail
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class ConnectionCreator::ProxyInfo {
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public:
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ProxyInfo(Proxy *proxy, IPAddress ip_address) : proxy_(proxy), ip_address_(std::move(ip_address)) {
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}
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bool use_proxy() const {
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return proxy_ != nullptr;
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}
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Proxy::Type proxy_type() const {
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return proxy_ == nullptr ? Proxy::Type::None : proxy_->type();
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}
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bool use_socks5_proxy() const {
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return proxy_type() == Proxy::Type::Socks5;
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}
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bool use_http_tcp_proxy() const {
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return proxy_type() == Proxy::Type::HttpTcp;
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}
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bool use_http_caching_proxy() const {
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return proxy_type() == Proxy::Type::HttpCaching;
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}
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bool use_mtproto_proxy() const {
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return proxy_type() == Proxy::Type::Mtproto;
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}
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const Proxy &proxy() const {
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CHECK(use_proxy());
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return *proxy_;
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}
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const IPAddress &ip_address() const {
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return ip_address_;
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}
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private:
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Proxy *proxy_;
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IPAddress ip_address_;
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};
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template <class T>
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void Proxy::parse(T &parser) {
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using td::parse;
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parse(type_, parser);
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if (type_ == Proxy::Type::Socks5 || type_ == Proxy::Type::HttpTcp || type_ == Proxy::Type::HttpCaching) {
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parse(server_, parser);
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parse(port_, parser);
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parse(user_, parser);
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parse(password_, parser);
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} else if (type_ == Proxy::Type::Mtproto) {
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parse(server_, parser);
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parse(port_, parser);
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parse(secret_, parser);
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} else {
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CHECK(type_ == Proxy::Type::None) << static_cast<int32>(type_);
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}
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}
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template <class T>
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void Proxy::store(T &storer) const {
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using td::store;
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store(type_, storer);
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if (type_ == Proxy::Type::Socks5 || type_ == Proxy::Type::HttpTcp || type_ == Proxy::Type::HttpCaching) {
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store(server_, storer);
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store(port_, storer);
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store(user_, storer);
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store(password_, storer);
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} else if (type_ == Proxy::Type::Mtproto) {
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store(server_, storer);
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store(port_, storer);
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store(secret_, storer);
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} else {
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CHECK(type_ == Proxy::Type::None);
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}
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}
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StringBuilder &operator<<(StringBuilder &string_builder, const Proxy &proxy) {
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switch (proxy.type()) {
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case Proxy::Type::Socks5:
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return string_builder << "ProxySocks5 " << proxy.server() << ":" << proxy.port();
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case Proxy::Type::HttpTcp:
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return string_builder << "ProxyHttpTcp " << proxy.server() << ":" << proxy.port();
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case Proxy::Type::HttpCaching:
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return string_builder << "ProxyHttpCaching " << proxy.server() << ":" << proxy.port();
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case Proxy::Type::Mtproto:
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return string_builder << "ProxyMtproto " << proxy.server() << ":" << proxy.port() << "/" << proxy.secret();
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case Proxy::Type::None:
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return string_builder << "ProxyEmpty";
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default:
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UNREACHABLE();
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return string_builder;
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}
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}
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ConnectionCreator::ClientInfo::ClientInfo() {
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flood_control.add_limit(1, 1);
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flood_control.add_limit(4, 2);
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flood_control.add_limit(8, 3);
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flood_control_online.add_limit(1, 4);
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flood_control_online.add_limit(5, 5);
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mtproto_error_flood_control.add_limit(1, 1);
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mtproto_error_flood_control.add_limit(4, 2);
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mtproto_error_flood_control.add_limit(8, 3);
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}
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ConnectionCreator::ConnectionCreator(ActorShared<> parent) : parent_(std::move(parent)) {
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}
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ConnectionCreator::ConnectionCreator(ConnectionCreator &&other) = default;
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ConnectionCreator &ConnectionCreator::operator=(ConnectionCreator &&other) = default;
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ConnectionCreator::~ConnectionCreator() = default;
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void ConnectionCreator::set_net_stats_callback(std::shared_ptr<NetStatsCallback> common_callback,
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std::shared_ptr<NetStatsCallback> media_callback) {
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common_net_stats_callback_ = std::move(common_callback);
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media_net_stats_callback_ = std::move(media_callback);
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}
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void ConnectionCreator::add_proxy(int32 old_proxy_id, string server, int32 port, bool enable,
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td_api::object_ptr<td_api::ProxyType> proxy_type,
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Promise<td_api::object_ptr<td_api::proxy>> promise) {
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if (proxy_type == nullptr) {
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return promise.set_error(Status::Error(400, "Proxy type should not be empty"));
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}
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if (server.empty()) {
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return promise.set_error(Status::Error(400, "Server name can't be empty"));
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}
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if (port <= 0 || port > 65535) {
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return promise.set_error(Status::Error(400, "Wrong port number"));
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}
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auto is_secret_supported = [](Slice secret) {
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if (secret.size() == 32) {
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return true;
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}
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if (secret.size() == 34) {
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return begins_with(secret, "dd");
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}
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return false;
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};
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Proxy new_proxy;
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switch (proxy_type->get_id()) {
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case td_api::proxyTypeSocks5::ID: {
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auto type = td_api::move_object_as<td_api::proxyTypeSocks5>(proxy_type);
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new_proxy = Proxy::socks5(server, port, type->username_, type->password_);
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break;
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}
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case td_api::proxyTypeHttp::ID: {
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auto type = td_api::move_object_as<td_api::proxyTypeHttp>(proxy_type);
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if (type->http_only_) {
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new_proxy = Proxy::http_caching(server, port, type->username_, type->password_);
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} else {
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new_proxy = Proxy::http_tcp(server, port, type->username_, type->password_);
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}
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break;
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}
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case td_api::proxyTypeMtproto::ID: {
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auto type = td_api::move_object_as<td_api::proxyTypeMtproto>(proxy_type);
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if (hex_decode(type->secret_).is_error()) {
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return promise.set_error(Status::Error(400, "Wrong secret"));
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}
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if (!is_secret_supported(type->secret_)) {
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return promise.set_error(Status::Error(400, "Unsupported secret"));
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}
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new_proxy = Proxy::mtproto(server, port, type->secret_);
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break;
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}
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default:
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UNREACHABLE();
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}
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if (old_proxy_id >= 0) {
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if (proxies_.count(old_proxy_id) == 0) {
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return promise.set_error(Status::Error(400, "Proxy not found"));
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}
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auto &old_proxy = proxies_[old_proxy_id];
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if (old_proxy == new_proxy) {
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if (enable) {
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enable_proxy_impl(old_proxy_id);
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}
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return promise.set_value(get_proxy_object(old_proxy_id));
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}
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if (old_proxy_id == active_proxy_id_) {
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enable = true;
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disable_proxy_impl();
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}
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proxies_.erase(old_proxy_id);
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G()->td_db()->get_binlog_pmc()->erase(get_proxy_used_database_key(old_proxy_id));
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proxy_last_used_date_.erase(old_proxy_id);
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proxy_last_used_saved_date_.erase(old_proxy_id);
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}
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auto proxy_id = [&] {
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for (auto &proxy : proxies_) {
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if (proxy.second == new_proxy) {
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return proxy.first;
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}
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}
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int32 proxy_id = old_proxy_id;
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if (proxy_id < 0) {
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CHECK(max_proxy_id_ >= 2);
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proxy_id = max_proxy_id_++;
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G()->td_db()->get_binlog_pmc()->set("proxy_max_id", to_string(max_proxy_id_));
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}
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CHECK(proxies_.count(proxy_id) == 0);
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proxies_.emplace(proxy_id, std::move(new_proxy));
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G()->td_db()->get_binlog_pmc()->set(get_proxy_database_key(proxy_id),
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log_event_store(proxies_[proxy_id]).as_slice().str());
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return proxy_id;
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}();
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if (enable) {
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enable_proxy_impl(proxy_id);
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}
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promise.set_value(get_proxy_object(proxy_id));
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}
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void ConnectionCreator::enable_proxy(int32 proxy_id, Promise<Unit> promise) {
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if (proxies_.count(proxy_id) == 0) {
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return promise.set_error(Status::Error(400, "Unknown proxy identifier"));
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}
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enable_proxy_impl(proxy_id);
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promise.set_value(Unit());
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}
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void ConnectionCreator::disable_proxy(Promise<Unit> promise) {
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save_proxy_last_used_date(0);
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disable_proxy_impl();
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promise.set_value(Unit());
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}
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void ConnectionCreator::remove_proxy(int32 proxy_id, Promise<Unit> promise) {
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if (proxies_.count(proxy_id) == 0) {
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return promise.set_error(Status::Error(400, "Unknown proxy identifier"));
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}
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if (proxy_id == active_proxy_id_) {
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disable_proxy_impl();
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}
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proxies_.erase(proxy_id);
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G()->td_db()->get_binlog_pmc()->erase(get_proxy_database_key(proxy_id));
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G()->td_db()->get_binlog_pmc()->erase(get_proxy_used_database_key(proxy_id));
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promise.set_value(Unit());
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}
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void ConnectionCreator::get_proxies(Promise<td_api::object_ptr<td_api::proxies>> promise) {
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promise.set_value(td_api::make_object<td_api::proxies>(
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transform(proxies_, [this](const std::pair<int32, Proxy> &proxy) { return get_proxy_object(proxy.first); })));
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}
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void ConnectionCreator::get_proxy_link(int32 proxy_id, Promise<string> promise) {
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if (proxies_.count(proxy_id) == 0) {
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return promise.set_error(Status::Error(400, "Unknown proxy identifier"));
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}
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auto &proxy = proxies_[proxy_id];
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string url = G()->shared_config().get_option_string("t_me_url", "https://t.me/");
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bool is_socks = false;
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switch (proxy.type()) {
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case Proxy::Type::Socks5:
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url += "socks";
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is_socks = true;
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break;
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case Proxy::Type::HttpTcp:
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case Proxy::Type::HttpCaching:
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return promise.set_error(Status::Error(400, "HTTP proxy can't have public link"));
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case Proxy::Type::Mtproto:
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url += "proxy";
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break;
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default:
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UNREACHABLE();
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}
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url += "?server=";
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url += url_encode(proxy.server());
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url += "&port=";
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url += to_string(proxy.port());
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if (is_socks) {
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if (!proxy.user().empty() || !proxy.password().empty()) {
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url += "&user=";
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url += url_encode(proxy.user());
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url += "&pass=";
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url += url_encode(proxy.password());
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}
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} else {
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url += "&secret=";
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url += url_encode(proxy.secret());
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}
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promise.set_value(std::move(url));
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}
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ActorId<GetHostByNameActor> ConnectionCreator::get_dns_resolver() {
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if (G()->shared_config().get_option_boolean("expect_blocking", true)) {
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if (block_get_host_by_name_actor_.empty()) {
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VLOG(connections) << "Init block bypass DNS resolver";
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GetHostByNameActor::Options options;
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options.scheduler_id = G()->get_gc_scheduler_id();
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options.resolver_types = {GetHostByNameActor::ResolverType::Google, GetHostByNameActor::ResolverType::Native};
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options.ok_timeout = 60;
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options.error_timeout = 0;
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block_get_host_by_name_actor_ = create_actor<GetHostByNameActor>("BlockDnsResolverActor", std::move(options));
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}
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return block_get_host_by_name_actor_.get();
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} else {
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if (get_host_by_name_actor_.empty()) {
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VLOG(connections) << "Init DNS resolver";
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GetHostByNameActor::Options options;
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options.scheduler_id = G()->get_gc_scheduler_id();
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options.ok_timeout = 5 * 60 - 1;
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options.error_timeout = 0;
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get_host_by_name_actor_ = create_actor<GetHostByNameActor>("DnsResolverActor", std::move(options));
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}
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return get_host_by_name_actor_.get();
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}
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}
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void ConnectionCreator::ping_proxy(int32 proxy_id, Promise<double> promise) {
|
|
if (proxy_id == 0) {
|
|
ProxyInfo proxy{nullptr, IPAddress()};
|
|
auto main_dc_id = G()->net_query_dispatcher().main_dc_id();
|
|
bool prefer_ipv6 = G()->shared_config().get_option_boolean("prefer_ipv6");
|
|
auto infos = dc_options_set_.find_all_connections(main_dc_id, false, false, prefer_ipv6, false);
|
|
if (infos.empty()) {
|
|
return promise.set_error(Status::Error(400, "Can't find valid DC address"));
|
|
}
|
|
const size_t MAX_CONNECTIONS = 10;
|
|
if (infos.size() > MAX_CONNECTIONS) {
|
|
infos.resize(MAX_CONNECTIONS);
|
|
}
|
|
|
|
auto token = next_token();
|
|
auto &request = ping_main_dc_requests_[token];
|
|
request.promise = std::move(promise);
|
|
request.left_queries = infos.size();
|
|
request.result = Status::Error(400, "Failed to ping");
|
|
|
|
for (auto &info : infos) {
|
|
auto r_transport_type = get_transport_type(ProxyInfo{nullptr, IPAddress()}, info);
|
|
if (r_transport_type.is_error()) {
|
|
LOG(ERROR) << r_transport_type.error();
|
|
on_ping_main_dc_result(token, r_transport_type.move_as_error());
|
|
continue;
|
|
}
|
|
|
|
auto r_socket_fd = SocketFd::open(info.option->get_ip_address());
|
|
if (r_socket_fd.is_error()) {
|
|
LOG(DEBUG) << "Failed to open socket: " << r_socket_fd.error();
|
|
on_ping_main_dc_result(token, r_socket_fd.move_as_error());
|
|
continue;
|
|
}
|
|
|
|
ping_proxy_socket_fd(r_socket_fd.move_as_ok(), r_transport_type.move_as_ok(),
|
|
PromiseCreator::lambda([actor_id = actor_id(this), token](Result<double> result) {
|
|
send_closure(actor_id, &ConnectionCreator::on_ping_main_dc_result, token,
|
|
std::move(result));
|
|
}));
|
|
}
|
|
return;
|
|
}
|
|
|
|
auto it = proxies_.find(proxy_id);
|
|
if (it == proxies_.end()) {
|
|
return promise.set_error(Status::Error(400, "Unknown proxy identifier"));
|
|
}
|
|
const Proxy &proxy = it->second;
|
|
bool prefer_ipv6 = G()->shared_config().get_option_boolean("prefer_ipv6");
|
|
send_closure(get_dns_resolver(), &GetHostByNameActor::run, proxy.server().str(), proxy.port(), prefer_ipv6,
|
|
PromiseCreator::lambda([actor_id = actor_id(this), promise = std::move(promise),
|
|
proxy_id](Result<IPAddress> result) mutable {
|
|
if (result.is_error()) {
|
|
return promise.set_error(Status::Error(400, result.error().message()));
|
|
}
|
|
send_closure(actor_id, &ConnectionCreator::ping_proxy_resolved, proxy_id, result.move_as_ok(),
|
|
std::move(promise));
|
|
}));
|
|
}
|
|
|
|
void ConnectionCreator::ping_proxy_resolved(int32 proxy_id, IPAddress ip_address, Promise<double> promise) {
|
|
auto it = proxies_.find(proxy_id);
|
|
if (it == proxies_.end()) {
|
|
return promise.set_error(Status::Error(400, "Unknown proxy identifier"));
|
|
}
|
|
ProxyInfo proxy(&it->second, ip_address);
|
|
auto main_dc_id = G()->net_query_dispatcher().main_dc_id();
|
|
FindConnectionExtra extra;
|
|
auto r_socket_fd = find_connection(proxy, main_dc_id, false, extra);
|
|
if (r_socket_fd.is_error()) {
|
|
return promise.set_error(Status::Error(400, r_socket_fd.error().message()));
|
|
}
|
|
auto socket_fd = r_socket_fd.move_as_ok();
|
|
|
|
auto socket_fd_promise =
|
|
PromiseCreator::lambda([promise = std::move(promise), actor_id = actor_id(this),
|
|
transport_type = std::move(extra.transport_type)](Result<SocketFd> r_socket_fd) mutable {
|
|
if (r_socket_fd.is_error()) {
|
|
return promise.set_error(Status::Error(400, r_socket_fd.error().message()));
|
|
}
|
|
send_closure(actor_id, &ConnectionCreator::ping_proxy_socket_fd, r_socket_fd.move_as_ok(),
|
|
std::move(transport_type), std::move(promise));
|
|
});
|
|
CHECK(proxy.use_proxy());
|
|
if (proxy.use_socks5_proxy() || proxy.use_http_tcp_proxy()) {
|
|
class Callback : public TransparentProxy::Callback {
|
|
public:
|
|
explicit Callback(Promise<SocketFd> promise) : promise_(std::move(promise)) {
|
|
}
|
|
void set_result(Result<SocketFd> result) override {
|
|
promise_.set_result(std::move(result));
|
|
}
|
|
void on_connected() override {
|
|
}
|
|
|
|
private:
|
|
Promise<SocketFd> promise_;
|
|
};
|
|
LOG(INFO) << "Start ping proxy: " << extra.debug_str;
|
|
auto token = next_token();
|
|
if (proxy.use_socks5_proxy()) {
|
|
children_[token] = {
|
|
false, create_actor<Socks5>("PingSocks5", std::move(socket_fd), extra.mtproto_ip, proxy.proxy().user().str(),
|
|
proxy.proxy().password().str(),
|
|
make_unique<Callback>(std::move(socket_fd_promise)), create_reference(token))};
|
|
} else {
|
|
children_[token] = {
|
|
false, create_actor<HttpProxy>("PingHttpProxy", std::move(socket_fd), extra.mtproto_ip,
|
|
proxy.proxy().user().str(), proxy.proxy().password().str(),
|
|
make_unique<Callback>(std::move(socket_fd_promise)), create_reference(token))};
|
|
}
|
|
} else {
|
|
socket_fd_promise.set_value(std::move(socket_fd));
|
|
}
|
|
}
|
|
|
|
void ConnectionCreator::ping_proxy_socket_fd(SocketFd socket_fd, mtproto::TransportType transport_type,
|
|
Promise<double> promise) {
|
|
auto token = next_token();
|
|
auto raw_connection = make_unique<mtproto::RawConnection>(std::move(socket_fd), std::move(transport_type), nullptr);
|
|
children_[token] = {false, create_actor<detail::PingActor>(
|
|
"PingActor", std::move(raw_connection),
|
|
PromiseCreator::lambda([promise = std::move(promise)](
|
|
Result<unique_ptr<mtproto::RawConnection>> result) mutable {
|
|
if (result.is_error()) {
|
|
return promise.set_error(Status::Error(400, result.error().message()));
|
|
}
|
|
auto ping_time = result.ok()->rtt_;
|
|
promise.set_value(std::move(ping_time));
|
|
}),
|
|
create_reference(token))};
|
|
}
|
|
|
|
void ConnectionCreator::set_active_proxy_id(int32 proxy_id, bool from_binlog) {
|
|
active_proxy_id_ = proxy_id;
|
|
if (proxy_id == 0) {
|
|
G()->shared_config().set_option_empty("enabled_proxy_id");
|
|
} else {
|
|
G()->shared_config().set_option_integer("enabled_proxy_id", proxy_id);
|
|
}
|
|
if (!from_binlog) {
|
|
if (proxy_id == 0) {
|
|
G()->td_db()->get_binlog_pmc()->erase("proxy_active_id");
|
|
} else {
|
|
G()->td_db()->get_binlog_pmc()->set("proxy_active_id", to_string(proxy_id));
|
|
}
|
|
}
|
|
}
|
|
|
|
void ConnectionCreator::enable_proxy_impl(int32 proxy_id) {
|
|
CHECK(proxies_.count(proxy_id) == 1);
|
|
if (proxy_id == active_proxy_id_) {
|
|
return;
|
|
}
|
|
|
|
if ((active_proxy_id_ != 0 && proxies_[active_proxy_id_].type() == Proxy::Type::Mtproto) ||
|
|
proxies_[proxy_id].type() == Proxy::Type::Mtproto) {
|
|
update_mtproto_header(proxies_[proxy_id]);
|
|
}
|
|
save_proxy_last_used_date(0);
|
|
|
|
set_active_proxy_id(proxy_id);
|
|
|
|
on_proxy_changed(false);
|
|
}
|
|
|
|
void ConnectionCreator::disable_proxy_impl() {
|
|
if (active_proxy_id_ == 0) {
|
|
on_get_proxy_info(make_tl_object<telegram_api::help_proxyDataEmpty>(0));
|
|
return;
|
|
}
|
|
CHECK(proxies_.count(active_proxy_id_) == 1);
|
|
|
|
if (proxies_[active_proxy_id_].type() == Proxy::Type::Mtproto) {
|
|
update_mtproto_header(Proxy());
|
|
}
|
|
|
|
set_active_proxy_id(0);
|
|
|
|
on_proxy_changed(false);
|
|
}
|
|
|
|
void ConnectionCreator::on_proxy_changed(bool from_db) {
|
|
send_closure(G()->state_manager(), &StateManager::on_proxy,
|
|
active_proxy_id_ != 0 && proxies_[active_proxy_id_].type() != Proxy::Type::Mtproto &&
|
|
proxies_[active_proxy_id_].type() != Proxy::Type::HttpCaching);
|
|
|
|
if (!from_db) {
|
|
for (auto &child : children_) {
|
|
if (child.second.first) {
|
|
child.second.second.reset();
|
|
}
|
|
}
|
|
}
|
|
|
|
VLOG(connections) << "Drop proxy IP address " << proxy_ip_address_;
|
|
resolve_proxy_query_token_ = 0;
|
|
resolve_proxy_timestamp_ = Timestamp();
|
|
proxy_ip_address_ = IPAddress();
|
|
|
|
get_proxy_info_query_token_ = 0;
|
|
get_proxy_info_timestamp_ = Timestamp();
|
|
if (active_proxy_id_ == 0 || !from_db) {
|
|
on_get_proxy_info(make_tl_object<telegram_api::help_proxyDataEmpty>(0));
|
|
} else {
|
|
schedule_get_proxy_info(0);
|
|
}
|
|
|
|
loop();
|
|
}
|
|
|
|
string ConnectionCreator::get_proxy_database_key(int32 proxy_id) {
|
|
CHECK(proxy_id > 0);
|
|
if (proxy_id == 1) {
|
|
return "proxy";
|
|
}
|
|
return PSTRING() << "proxy" << proxy_id;
|
|
}
|
|
|
|
string ConnectionCreator::get_proxy_used_database_key(int32 proxy_id) {
|
|
CHECK(proxy_id > 0);
|
|
return PSTRING() << "proxy_used" << proxy_id;
|
|
}
|
|
|
|
void ConnectionCreator::save_proxy_last_used_date(int32 delay) {
|
|
if (active_proxy_id_ == 0) {
|
|
return;
|
|
}
|
|
|
|
CHECK(delay >= 0);
|
|
int32 date = proxy_last_used_date_[active_proxy_id_];
|
|
int32 &saved_date = proxy_last_used_saved_date_[active_proxy_id_];
|
|
if (date <= saved_date + delay) {
|
|
return;
|
|
}
|
|
LOG(DEBUG) << "Save proxy last used date " << date;
|
|
|
|
saved_date = date;
|
|
G()->td_db()->get_binlog_pmc()->set(get_proxy_used_database_key(active_proxy_id_), to_string(date));
|
|
}
|
|
|
|
td_api::object_ptr<td_api::proxy> ConnectionCreator::get_proxy_object(int32 proxy_id) const {
|
|
auto it = proxies_.find(proxy_id);
|
|
CHECK(it != proxies_.end());
|
|
const Proxy &proxy = it->second;
|
|
td_api::object_ptr<td_api::ProxyType> type;
|
|
switch (proxy.type()) {
|
|
case Proxy::Type::Socks5:
|
|
type = make_tl_object<td_api::proxyTypeSocks5>(proxy.user().str(), proxy.password().str());
|
|
break;
|
|
case Proxy::Type::HttpTcp:
|
|
type = make_tl_object<td_api::proxyTypeHttp>(proxy.user().str(), proxy.password().str(), false);
|
|
break;
|
|
case Proxy::Type::HttpCaching:
|
|
type = make_tl_object<td_api::proxyTypeHttp>(proxy.user().str(), proxy.password().str(), true);
|
|
break;
|
|
case Proxy::Type::Mtproto:
|
|
type = make_tl_object<td_api::proxyTypeMtproto>(proxy.secret().str());
|
|
break;
|
|
default:
|
|
UNREACHABLE();
|
|
}
|
|
auto last_used_date_it = proxy_last_used_date_.find(proxy_id);
|
|
auto last_used_date = last_used_date_it == proxy_last_used_date_.end() ? 0 : last_used_date_it->second;
|
|
return make_tl_object<td_api::proxy>(proxy_id, proxy.server().str(), proxy.port(), last_used_date,
|
|
proxy_id == active_proxy_id_, std::move(type));
|
|
}
|
|
|
|
void ConnectionCreator::on_network(bool network_flag, uint32 network_generation) {
|
|
VLOG(connections) << "Receive network flag " << network_flag << " with generation " << network_generation;
|
|
network_flag_ = network_flag;
|
|
auto old_generation = network_generation_;
|
|
network_generation_ = network_generation;
|
|
if (network_flag_) {
|
|
VLOG(connections) << "Set proxy query token to 0: " << old_generation << " " << network_generation_;
|
|
resolve_proxy_query_token_ = 0;
|
|
resolve_proxy_timestamp_ = Timestamp();
|
|
get_proxy_info_timestamp_ = Timestamp();
|
|
|
|
for (auto &client : clients_) {
|
|
client.second.backoff.clear();
|
|
client.second.flood_control.clear_events();
|
|
client.second.flood_control_online.clear_events();
|
|
client_loop(client.second);
|
|
}
|
|
|
|
if (old_generation != network_generation_) {
|
|
loop();
|
|
}
|
|
}
|
|
}
|
|
|
|
void ConnectionCreator::on_online(bool online_flag) {
|
|
VLOG(connections) << "Receive online flag " << online_flag;
|
|
online_flag_ = online_flag;
|
|
if (online_flag_) {
|
|
for (auto &client : clients_) {
|
|
client.second.backoff.clear();
|
|
client.second.flood_control_online.clear_events();
|
|
client_loop(client.second);
|
|
}
|
|
}
|
|
}
|
|
|
|
void ConnectionCreator::on_pong(size_t hash) {
|
|
if (active_proxy_id_ != 0) {
|
|
auto now = G()->unix_time();
|
|
int32 &last_used = proxy_last_used_date_[active_proxy_id_];
|
|
if (now > last_used) {
|
|
last_used = now;
|
|
save_proxy_last_used_date(MAX_PROXY_LAST_USED_SAVE_DELAY);
|
|
}
|
|
}
|
|
}
|
|
|
|
void ConnectionCreator::on_mtproto_error(size_t hash) {
|
|
auto &client = clients_[hash];
|
|
client.hash = hash;
|
|
client.mtproto_error_flood_control.add_event(static_cast<int32>(Time::now_cached()));
|
|
}
|
|
|
|
void ConnectionCreator::request_raw_connection(DcId dc_id, bool allow_media_only, bool is_media,
|
|
Promise<unique_ptr<mtproto::RawConnection>> promise, size_t hash) {
|
|
auto &client = clients_[hash];
|
|
if (!client.inited) {
|
|
client.inited = true;
|
|
client.hash = hash;
|
|
client.dc_id = dc_id;
|
|
client.allow_media_only = allow_media_only;
|
|
client.is_media = is_media;
|
|
} else {
|
|
CHECK(client.hash == hash);
|
|
CHECK(client.dc_id == dc_id);
|
|
CHECK(client.allow_media_only == allow_media_only);
|
|
CHECK(client.is_media == is_media);
|
|
}
|
|
VLOG(connections) << "Request connection for " << tag("client", format::as_hex(client.hash)) << " to " << dc_id << " "
|
|
<< tag("allow_media_only", allow_media_only);
|
|
client.queries.push_back(std::move(promise));
|
|
|
|
client_loop(client);
|
|
}
|
|
|
|
void ConnectionCreator::request_raw_connection_by_ip(IPAddress ip_address,
|
|
Promise<unique_ptr<mtproto::RawConnection>> promise) {
|
|
auto r_socket_fd = SocketFd::open(ip_address);
|
|
if (r_socket_fd.is_error()) {
|
|
return promise.set_error(r_socket_fd.move_as_error());
|
|
}
|
|
auto raw_connection = make_unique<mtproto::RawConnection>(
|
|
r_socket_fd.move_as_ok(), mtproto::TransportType{mtproto::TransportType::ObfuscatedTcp, 0, ""}, nullptr);
|
|
raw_connection->extra_ = network_generation_;
|
|
promise.set_value(std::move(raw_connection));
|
|
}
|
|
|
|
Result<mtproto::TransportType> ConnectionCreator::get_transport_type(const ProxyInfo &proxy,
|
|
const DcOptionsSet::ConnectionInfo &info) {
|
|
int32 int_dc_id = info.option->get_dc_id().get_raw_id();
|
|
if (G()->is_test_dc()) {
|
|
int_dc_id += 10000;
|
|
}
|
|
int16 raw_dc_id = narrow_cast<int16>(info.option->is_media_only() ? -int_dc_id : int_dc_id);
|
|
|
|
if (proxy.use_mtproto_proxy()) {
|
|
TRY_RESULT(secret, hex_decode(proxy.proxy().secret()));
|
|
return mtproto::TransportType{mtproto::TransportType::ObfuscatedTcp, raw_dc_id, std::move(secret)};
|
|
}
|
|
if (proxy.use_http_caching_proxy()) {
|
|
CHECK(info.option != nullptr);
|
|
string proxy_authorization;
|
|
if (!proxy.proxy().user().empty() || !proxy.proxy().password().empty()) {
|
|
proxy_authorization =
|
|
"|basic " + td::base64_encode(PSLICE() << proxy.proxy().user() << ':' << proxy.proxy().password());
|
|
}
|
|
return mtproto::TransportType{mtproto::TransportType::Http, 0,
|
|
PSTRING() << info.option->get_ip_address().get_ip_str() << proxy_authorization};
|
|
}
|
|
|
|
if (info.use_http) {
|
|
return mtproto::TransportType{mtproto::TransportType::Http, 0, ""};
|
|
} else {
|
|
return mtproto::TransportType{mtproto::TransportType::ObfuscatedTcp, raw_dc_id, info.option->get_secret().str()};
|
|
}
|
|
}
|
|
|
|
Result<SocketFd> ConnectionCreator::find_connection(const ProxyInfo &proxy, DcId dc_id, bool allow_media_only,
|
|
FindConnectionExtra &extra) {
|
|
extra.debug_str = PSTRING() << "Failed to find valid IP for " << dc_id;
|
|
bool prefer_ipv6 =
|
|
G()->shared_config().get_option_boolean("prefer_ipv6") || (proxy.use_proxy() && proxy.ip_address().is_ipv6());
|
|
bool only_http = proxy.use_http_caching_proxy();
|
|
TRY_RESULT(info, dc_options_set_.find_connection(
|
|
dc_id, allow_media_only, proxy.use_proxy() && proxy.use_socks5_proxy(), prefer_ipv6, only_http));
|
|
extra.stat = info.stat;
|
|
TRY_RESULT(transport_type, get_transport_type(proxy, info));
|
|
extra.transport_type = std::move(transport_type);
|
|
|
|
extra.debug_str = PSTRING() << " to " << (info.option->is_media_only() ? "MEDIA " : "") << dc_id
|
|
<< (info.use_http ? " over HTTP" : "");
|
|
|
|
if (proxy.use_mtproto_proxy()) {
|
|
extra.debug_str = PSTRING() << "Mtproto " << proxy.ip_address() << extra.debug_str;
|
|
|
|
LOG(INFO) << "Create: " << extra.debug_str;
|
|
return SocketFd::open(proxy.ip_address());
|
|
}
|
|
|
|
extra.check_mode |= info.should_check;
|
|
|
|
if (proxy.use_proxy()) {
|
|
extra.mtproto_ip = info.option->get_ip_address();
|
|
extra.debug_str = PSTRING() << (proxy.use_socks5_proxy() ? "Socks5" : (only_http ? "HTTP_ONLY" : "HTTP_TCP")) << ' '
|
|
<< proxy.ip_address() << " --> " << extra.mtproto_ip << extra.debug_str;
|
|
LOG(INFO) << "Create: " << extra.debug_str;
|
|
return SocketFd::open(proxy.ip_address());
|
|
} else {
|
|
extra.debug_str = PSTRING() << info.option->get_ip_address() << extra.debug_str;
|
|
LOG(INFO) << "Create: " << extra.debug_str;
|
|
return SocketFd::open(info.option->get_ip_address());
|
|
}
|
|
}
|
|
|
|
void ConnectionCreator::client_loop(ClientInfo &client) {
|
|
CHECK(client.hash != 0);
|
|
if (!network_flag_) {
|
|
VLOG(connections) << "Exit client_loop, because there is no network";
|
|
return;
|
|
}
|
|
if (close_flag_) {
|
|
VLOG(connections) << "Exit client_loop, because of closing";
|
|
return;
|
|
}
|
|
|
|
ProxyInfo proxy{active_proxy_id_ == 0 ? nullptr : &proxies_[active_proxy_id_], proxy_ip_address_};
|
|
if (proxy.use_proxy() && !proxy.ip_address().is_valid()) {
|
|
VLOG(connections) << "Exit client_loop, because there is no valid IP address for proxy: " << proxy.ip_address();
|
|
return;
|
|
}
|
|
|
|
VLOG(connections) << "client_loop: " << tag("client", format::as_hex(client.hash));
|
|
|
|
// Remove expired ready connections
|
|
client.ready_connections.erase(
|
|
std::remove_if(client.ready_connections.begin(), client.ready_connections.end(),
|
|
[&, expires_at = Time::now_cached() - ClientInfo::READY_CONNECTIONS_TIMEOUT](auto &v) {
|
|
bool drop = v.second < expires_at;
|
|
VLOG_IF(connections, drop) << "Drop expired " << tag("connection", v.first.get());
|
|
return drop;
|
|
}),
|
|
client.ready_connections.end());
|
|
|
|
// Send ready connections into promises
|
|
{
|
|
auto begin = client.queries.begin();
|
|
auto it = begin;
|
|
while (it != client.queries.end() && !client.ready_connections.empty()) {
|
|
if (!it->is_cancelled()) {
|
|
VLOG(connections) << "Send to promise " << tag("connection", client.ready_connections.back().first.get());
|
|
it->set_value(std::move(client.ready_connections.back().first));
|
|
client.ready_connections.pop_back();
|
|
}
|
|
++it;
|
|
}
|
|
client.queries.erase(begin, it);
|
|
}
|
|
|
|
// Main loop. Create new connections till needed
|
|
bool check_mode = client.checking_connections != 0 && !proxy.use_proxy();
|
|
while (true) {
|
|
// Check if we need new connections
|
|
if (client.queries.empty()) {
|
|
if (!client.ready_connections.empty()) {
|
|
client_set_timeout_at(client, Time::now() + ClientInfo::READY_CONNECTIONS_TIMEOUT);
|
|
}
|
|
return;
|
|
}
|
|
if (check_mode) {
|
|
if (client.checking_connections >= 3) {
|
|
return;
|
|
}
|
|
} else {
|
|
if (client.pending_connections >= client.queries.size()) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
// Check flood
|
|
auto &flood_control = online_flag_ ? client.flood_control_online : client.flood_control;
|
|
auto wakeup_at = max(flood_control.get_wakeup_at(), client.mtproto_error_flood_control.get_wakeup_at());
|
|
if (!online_flag_) {
|
|
wakeup_at = max(wakeup_at, client.backoff.get_wakeup_at());
|
|
}
|
|
if (wakeup_at > Time::now()) {
|
|
return client_set_timeout_at(client, wakeup_at);
|
|
}
|
|
flood_control.add_event(static_cast<int32>(Time::now()));
|
|
if (!online_flag_) {
|
|
client.backoff.add_event(static_cast<int32>(Time::now()));
|
|
}
|
|
|
|
// Create new RawConnection
|
|
// sync part
|
|
FindConnectionExtra extra;
|
|
auto r_socket_fd = find_connection(proxy, client.dc_id, client.allow_media_only, extra);
|
|
check_mode |= extra.check_mode;
|
|
if (r_socket_fd.is_error()) {
|
|
LOG(WARNING) << extra.debug_str << ": " << r_socket_fd.error();
|
|
if (extra.stat) {
|
|
extra.stat->on_error(); // TODO: different kind of error
|
|
}
|
|
return client_set_timeout_at(client, Time::now() + 0.1);
|
|
}
|
|
|
|
auto socket_fd = r_socket_fd.move_as_ok();
|
|
IPAddress debug_ip;
|
|
auto debug_ip_status = debug_ip.init_socket_address(socket_fd);
|
|
if (debug_ip_status.is_ok()) {
|
|
extra.debug_str = PSTRING() << extra.debug_str << " from " << debug_ip;
|
|
} else {
|
|
LOG(ERROR) << debug_ip_status;
|
|
}
|
|
|
|
client.pending_connections++;
|
|
if (check_mode) {
|
|
if (extra.stat) {
|
|
extra.stat->on_check();
|
|
}
|
|
client.checking_connections++;
|
|
}
|
|
|
|
auto promise = PromiseCreator::lambda(
|
|
[actor_id = actor_id(this), check_mode, transport_type = extra.transport_type, hash = client.hash,
|
|
debug_str = extra.debug_str,
|
|
network_generation = network_generation_](Result<ConnectionData> r_connection_data) mutable {
|
|
send_closure(std::move(actor_id), &ConnectionCreator::client_create_raw_connection,
|
|
std::move(r_connection_data), check_mode, transport_type, hash, debug_str, network_generation);
|
|
});
|
|
|
|
auto stats_callback =
|
|
td::make_unique<detail::StatsCallback>(client.is_media ? media_net_stats_callback_ : common_net_stats_callback_,
|
|
actor_id(this), client.hash, extra.stat);
|
|
|
|
if (proxy.use_socks5_proxy() || proxy.use_http_tcp_proxy()) {
|
|
VLOG(connections) << "client_loop: create new transparent proxy connection " << extra.debug_str;
|
|
class Callback : public TransparentProxy::Callback {
|
|
public:
|
|
explicit Callback(Promise<ConnectionData> promise, unique_ptr<detail::StatsCallback> stats_callback)
|
|
: promise_(std::move(promise)), stats_callback_(std::move(stats_callback)) {
|
|
}
|
|
void set_result(Result<SocketFd> result) override {
|
|
if (result.is_error()) {
|
|
connection_token_ = StateManager::ConnectionToken();
|
|
if (was_connected_) {
|
|
stats_callback_->on_error();
|
|
}
|
|
promise_.set_error(result.move_as_error());
|
|
} else {
|
|
ConnectionData data;
|
|
data.socket_fd = result.move_as_ok();
|
|
data.connection_token = std::move(connection_token_);
|
|
data.stats_callback = std::move(stats_callback_);
|
|
promise_.set_value(std::move(data));
|
|
}
|
|
}
|
|
void on_connected() override {
|
|
connection_token_ = StateManager::connection_proxy(G()->state_manager());
|
|
was_connected_ = true;
|
|
}
|
|
|
|
private:
|
|
Promise<ConnectionData> promise_;
|
|
StateManager::ConnectionToken connection_token_;
|
|
bool was_connected_{false};
|
|
unique_ptr<detail::StatsCallback> stats_callback_;
|
|
};
|
|
LOG(INFO) << "Start " << (proxy.use_socks5_proxy() ? "Socks5" : "HTTP") << ": " << extra.debug_str;
|
|
auto token = next_token();
|
|
auto callback = td::make_unique<Callback>(std::move(promise), std::move(stats_callback));
|
|
if (proxy.use_socks5_proxy()) {
|
|
children_[token] = {
|
|
true, create_actor<Socks5>("Socks5", std::move(socket_fd), extra.mtproto_ip, proxy.proxy().user().str(),
|
|
proxy.proxy().password().str(), std::move(callback), create_reference(token))};
|
|
} else {
|
|
children_[token] = {true, create_actor<HttpProxy>("HttpProxy", std::move(socket_fd), extra.mtproto_ip,
|
|
proxy.proxy().user().str(), proxy.proxy().password().str(),
|
|
std::move(callback), create_reference(token))};
|
|
}
|
|
} else {
|
|
VLOG(connections) << "client_loop: create new direct connection " << extra.debug_str;
|
|
|
|
ConnectionData data;
|
|
data.socket_fd = std::move(socket_fd);
|
|
data.stats_callback = std::move(stats_callback);
|
|
promise.set_result(std::move(data));
|
|
}
|
|
}
|
|
}
|
|
|
|
void ConnectionCreator::client_create_raw_connection(Result<ConnectionData> r_connection_data, bool check_mode,
|
|
mtproto::TransportType transport_type, size_t hash,
|
|
string debug_str, uint32 network_generation) {
|
|
auto promise = PromiseCreator::lambda([actor_id = actor_id(this), hash, check_mode,
|
|
debug_str](Result<unique_ptr<mtproto::RawConnection>> result) mutable {
|
|
if (result.is_ok()) {
|
|
VLOG(connections) << "Ready connection (" << (check_mode ? "" : "un") << "checked) " << result.ok().get() << ' '
|
|
<< debug_str;
|
|
} else {
|
|
VLOG(connections) << "Failed connection (" << (check_mode ? "" : "un") << "checked) " << result.error() << ' '
|
|
<< debug_str;
|
|
}
|
|
send_closure(std::move(actor_id), &ConnectionCreator::client_add_connection, hash, std::move(result), check_mode);
|
|
});
|
|
|
|
if (r_connection_data.is_error()) {
|
|
return promise.set_error(r_connection_data.move_as_error());
|
|
}
|
|
|
|
auto connection_data = r_connection_data.move_as_ok();
|
|
auto raw_connection = make_unique<mtproto::RawConnection>(
|
|
std::move(connection_data.socket_fd), std::move(transport_type), std::move(connection_data.stats_callback));
|
|
raw_connection->set_connection_token(std::move(connection_data.connection_token));
|
|
|
|
raw_connection->extra_ = network_generation;
|
|
raw_connection->debug_str_ = debug_str;
|
|
|
|
if (check_mode) {
|
|
VLOG(connections) << "Start check: " << debug_str;
|
|
auto token = next_token();
|
|
children_[token] = {true, create_actor<detail::PingActor>("PingActor", std::move(raw_connection),
|
|
std::move(promise), create_reference(token))};
|
|
} else {
|
|
promise.set_value(std::move(raw_connection));
|
|
}
|
|
}
|
|
|
|
void ConnectionCreator::client_set_timeout_at(ClientInfo &client, double wakeup_at) {
|
|
if (!client.slot.has_event()) {
|
|
client.slot.set_event(self_closure(this, &ConnectionCreator::client_wakeup, client.hash));
|
|
}
|
|
client.slot.set_timeout_at(wakeup_at);
|
|
VLOG(connections) << tag("client", format::as_hex(client.hash)) << " set timeout in "
|
|
<< wakeup_at - Time::now_cached();
|
|
}
|
|
|
|
void ConnectionCreator::client_add_connection(size_t hash, Result<unique_ptr<mtproto::RawConnection>> r_raw_connection,
|
|
bool check_flag) {
|
|
auto &client = clients_[hash];
|
|
CHECK(client.pending_connections > 0);
|
|
client.pending_connections--;
|
|
if (check_flag) {
|
|
CHECK(client.checking_connections > 0);
|
|
client.checking_connections--;
|
|
}
|
|
if (r_raw_connection.is_ok()) {
|
|
VLOG(connections) << "Add ready connection " << r_raw_connection.ok().get() << " for "
|
|
<< tag("client", format::as_hex(hash));
|
|
client.backoff.clear();
|
|
client.ready_connections.push_back(std::make_pair(r_raw_connection.move_as_ok(), Time::now_cached()));
|
|
}
|
|
client_loop(client);
|
|
}
|
|
|
|
void ConnectionCreator::client_wakeup(size_t hash) {
|
|
LOG(INFO) << tag("hash", format::as_hex(hash)) << " wakeup";
|
|
client_loop(clients_[hash]);
|
|
}
|
|
|
|
void ConnectionCreator::on_dc_options(DcOptions new_dc_options) {
|
|
LOG(INFO) << "SAVE " << new_dc_options;
|
|
G()->td_db()->get_binlog_pmc()->set("dc_options", serialize(new_dc_options));
|
|
dc_options_set_.reset();
|
|
dc_options_set_.add_dc_options(get_default_dc_options(G()->is_test_dc()));
|
|
#if !TD_EMSCRIPTEN // FIXME
|
|
dc_options_set_.add_dc_options(std::move(new_dc_options));
|
|
#endif
|
|
}
|
|
|
|
void ConnectionCreator::on_dc_update(DcId dc_id, string ip_port, Promise<> promise) {
|
|
promise.set_result([&]() -> Result<> {
|
|
if (!dc_id.is_exact()) {
|
|
return Status::Error("Invalid dc_id");
|
|
}
|
|
IPAddress ip_address;
|
|
TRY_STATUS(ip_address.init_host_port(ip_port));
|
|
DcOptions options;
|
|
options.dc_options.emplace_back(dc_id, ip_address);
|
|
send_closure(G()->config_manager(), &ConfigManager::on_dc_options_update, std::move(options));
|
|
return Unit();
|
|
}());
|
|
}
|
|
|
|
void ConnectionCreator::update_mtproto_header(const Proxy &proxy) {
|
|
if (G()->have_mtproto_header()) {
|
|
G()->mtproto_header().set_proxy(proxy);
|
|
}
|
|
if (G()->have_net_query_dispatcher()) {
|
|
G()->net_query_dispatcher().update_mtproto_header();
|
|
}
|
|
}
|
|
|
|
void ConnectionCreator::start_up() {
|
|
class StateCallback : public StateManager::Callback {
|
|
public:
|
|
explicit StateCallback(ActorId<ConnectionCreator> connection_creator)
|
|
: connection_creator_(std::move(connection_creator)) {
|
|
}
|
|
bool on_network(NetType network_type, uint32 generation) override {
|
|
send_closure(connection_creator_, &ConnectionCreator::on_network, network_type != NetType::None, generation);
|
|
return connection_creator_.is_alive();
|
|
}
|
|
bool on_online(bool online_flag) override {
|
|
send_closure(connection_creator_, &ConnectionCreator::on_online, online_flag);
|
|
return connection_creator_.is_alive();
|
|
}
|
|
|
|
private:
|
|
ActorId<ConnectionCreator> connection_creator_;
|
|
};
|
|
send_closure(G()->state_manager(), &StateManager::add_callback, make_unique<StateCallback>(actor_id(this)));
|
|
|
|
auto serialized_dc_options = G()->td_db()->get_binlog_pmc()->get("dc_options");
|
|
DcOptions dc_options;
|
|
auto status = unserialize(dc_options, serialized_dc_options);
|
|
if (status.is_error()) {
|
|
on_dc_options(DcOptions());
|
|
} else {
|
|
on_dc_options(std::move(dc_options));
|
|
}
|
|
|
|
auto proxy_info = G()->td_db()->get_binlog_pmc()->prefix_get("proxy");
|
|
auto it = proxy_info.find("proxy_max_id");
|
|
if (it != proxy_info.end()) {
|
|
max_proxy_id_ = to_integer<int32>(it->second);
|
|
proxy_info.erase(it);
|
|
}
|
|
it = proxy_info.find("proxy_active_id");
|
|
if (it != proxy_info.end()) {
|
|
set_active_proxy_id(to_integer<int32>(it->second), true);
|
|
proxy_info.erase(it);
|
|
}
|
|
|
|
for (auto &info : proxy_info) {
|
|
if (begins_with(info.first, "proxy_used")) {
|
|
int32 proxy_id = to_integer_safe<int32>(Slice(info.first).substr(10)).move_as_ok();
|
|
int32 last_used = to_integer_safe<int32>(info.second).move_as_ok();
|
|
proxy_last_used_date_[proxy_id] = last_used;
|
|
proxy_last_used_saved_date_[proxy_id] = last_used;
|
|
} else {
|
|
CHECK(!ends_with(info.first, "_max_id")) << info.first;
|
|
int32 proxy_id = info.first == "proxy" ? 1 : to_integer_safe<int32>(Slice(info.first).substr(5)).move_as_ok();
|
|
CHECK(proxies_.count(proxy_id) == 0);
|
|
log_event_parse(proxies_[proxy_id], info.second).ensure();
|
|
if (proxies_[proxy_id].type() == Proxy::Type::None) {
|
|
LOG_IF(ERROR, proxy_id != 1) << "Have empty proxy " << proxy_id;
|
|
proxies_.erase(proxy_id);
|
|
if (active_proxy_id_ == proxy_id) {
|
|
set_active_proxy_id(0);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (max_proxy_id_ == 0) {
|
|
// legacy one-proxy version
|
|
max_proxy_id_ = 2;
|
|
if (!proxies_.empty()) {
|
|
CHECK(proxies_.begin()->first == 1);
|
|
set_active_proxy_id(1);
|
|
}
|
|
G()->td_db()->get_binlog_pmc()->set("proxy_max_id", "2");
|
|
} else if (max_proxy_id_ < 2) {
|
|
LOG(ERROR) << "Found wrong max_proxy_id = " << max_proxy_id_;
|
|
max_proxy_id_ = 2;
|
|
}
|
|
|
|
if (active_proxy_id_ != 0) {
|
|
if (proxies_[active_proxy_id_].type() == Proxy::Type::Mtproto) {
|
|
update_mtproto_header(proxies_[active_proxy_id_]);
|
|
}
|
|
|
|
on_proxy_changed(true);
|
|
}
|
|
|
|
ref_cnt_guard_ = create_reference(-1);
|
|
|
|
is_inited_ = true;
|
|
loop();
|
|
}
|
|
|
|
void ConnectionCreator::hangup_shared() {
|
|
ref_cnt_--;
|
|
children_.erase(get_link_token());
|
|
if (ref_cnt_ == 0) {
|
|
stop();
|
|
}
|
|
}
|
|
|
|
ActorShared<ConnectionCreator> ConnectionCreator::create_reference(int64 token) {
|
|
CHECK(token != 0);
|
|
ref_cnt_++;
|
|
return actor_shared(this, token);
|
|
}
|
|
|
|
void ConnectionCreator::hangup() {
|
|
close_flag_ = true;
|
|
save_proxy_last_used_date(0);
|
|
ref_cnt_guard_.reset();
|
|
for (auto &child : children_) {
|
|
child.second.second.reset();
|
|
}
|
|
}
|
|
|
|
DcOptions ConnectionCreator::get_default_dc_options(bool is_test) {
|
|
DcOptions res;
|
|
enum class HostType : int32 { IPv4, IPv6, Url };
|
|
auto add_ip_ports = [&res](int32 dc_id, const vector<string> &ips, const vector<int> &ports,
|
|
HostType type = HostType::IPv4) {
|
|
IPAddress ip_address;
|
|
for (auto &ip : ips) {
|
|
for (auto port : ports) {
|
|
switch (type) {
|
|
case HostType::IPv4:
|
|
ip_address.init_ipv4_port(ip, port).ensure();
|
|
break;
|
|
case HostType::IPv6:
|
|
ip_address.init_ipv6_port(ip, port).ensure();
|
|
break;
|
|
case HostType::Url:
|
|
ip_address.init_host_port(ip, port).ensure();
|
|
break;
|
|
}
|
|
res.dc_options.emplace_back(DcId::internal(dc_id), ip_address);
|
|
}
|
|
}
|
|
};
|
|
vector<int> ports = {443, 80, 5222};
|
|
#if TD_EMSCRIPTEN
|
|
if (is_test) {
|
|
add_ip_ports(1, {"pluto.web.telegram.org/apiws_test"}, {443}, HostType::Url);
|
|
add_ip_ports(2, {"venus.web.telegram.org/apiws_test"}, {443}, HostType::Url);
|
|
add_ip_ports(3, {"aurora.web.telegram.org/apiws_test"}, {443}, HostType::Url);
|
|
} else {
|
|
add_ip_ports(1, {"pluto.web.telegram.org/apiws"}, {443}, HostType::Url);
|
|
add_ip_ports(2, {"venus.web.telegram.org/apiws"}, {443}, HostType::Url);
|
|
add_ip_ports(3, {"aurora.web.telegram.org/apiws"}, {443}, HostType::Url);
|
|
add_ip_ports(4, {"vesta.web.telegram.org/apiws"}, {443}, HostType::Url);
|
|
add_ip_ports(5, {"flora.web.telegram.org/apiws"}, {443}, HostType::Url);
|
|
}
|
|
#else
|
|
if (is_test) {
|
|
add_ip_ports(1, {"149.154.175.10"}, ports);
|
|
add_ip_ports(2, {"149.154.167.40"}, ports);
|
|
add_ip_ports(3, {"149.154.175.117"}, ports);
|
|
|
|
add_ip_ports(1, {"2001:b28:f23d:f001::e"}, ports, HostType::IPv6);
|
|
add_ip_ports(2, {"2001:67c:4e8:f002::e"}, ports, HostType::IPv6);
|
|
add_ip_ports(3, {"2001:b28:f23d:f003::e"}, ports, HostType::IPv6);
|
|
} else {
|
|
add_ip_ports(1, {"149.154.175.50"}, ports);
|
|
add_ip_ports(2, {"149.154.167.51"}, ports);
|
|
add_ip_ports(3, {"149.154.175.100"}, ports);
|
|
add_ip_ports(4, {"149.154.167.91"}, ports);
|
|
add_ip_ports(5, {"149.154.171.5"}, ports);
|
|
|
|
add_ip_ports(1, {"2001:b28:f23d:f001::a"}, ports, HostType::IPv6);
|
|
add_ip_ports(2, {"2001:67c:4e8:f002::a"}, ports, HostType::IPv6);
|
|
add_ip_ports(3, {"2001:b28:f23d:f003::a"}, ports, HostType::IPv6);
|
|
add_ip_ports(4, {"2001:67c:4e8:f004::a"}, ports, HostType::IPv6);
|
|
add_ip_ports(5, {"2001:b28:f23f:f005::a"}, ports, HostType::IPv6);
|
|
}
|
|
#endif
|
|
return res;
|
|
}
|
|
|
|
void ConnectionCreator::loop() {
|
|
if (!is_inited_) {
|
|
return;
|
|
}
|
|
if (G()->close_flag()) {
|
|
return;
|
|
}
|
|
if (!network_flag_) {
|
|
return;
|
|
}
|
|
|
|
Timestamp timeout;
|
|
if (active_proxy_id_ != 0 && proxies_[active_proxy_id_].type() == Proxy::Type::Mtproto) {
|
|
if (get_proxy_info_timestamp_.is_in_past()) {
|
|
if (get_proxy_info_query_token_ == 0) {
|
|
get_proxy_info_query_token_ = next_token();
|
|
auto query = G()->net_query_creator().create(create_storer(telegram_api::help_getProxyData()));
|
|
G()->net_query_dispatcher().dispatch_with_callback(std::move(query),
|
|
actor_shared(this, get_proxy_info_query_token_));
|
|
}
|
|
} else {
|
|
CHECK(get_proxy_info_query_token_ == 0);
|
|
timeout.relax(get_proxy_info_timestamp_);
|
|
}
|
|
}
|
|
|
|
if (active_proxy_id_ != 0) {
|
|
if (resolve_proxy_timestamp_.is_in_past()) {
|
|
if (resolve_proxy_query_token_ == 0) {
|
|
resolve_proxy_query_token_ = next_token();
|
|
const Proxy &proxy = proxies_[active_proxy_id_];
|
|
bool prefer_ipv6 = G()->shared_config().get_option_boolean("prefer_ipv6");
|
|
VLOG(connections) << "Resolve IP address " << resolve_proxy_query_token_ << " of " << proxy.server();
|
|
send_closure(
|
|
get_dns_resolver(), &GetHostByNameActor::run, proxy.server().str(), proxy.port(), prefer_ipv6,
|
|
PromiseCreator::lambda([actor_id = create_reference(resolve_proxy_query_token_)](Result<IPAddress> result) {
|
|
send_closure(std::move(actor_id), &ConnectionCreator::on_proxy_resolved, std::move(result), false);
|
|
}));
|
|
}
|
|
} else {
|
|
CHECK(resolve_proxy_query_token_ == 0);
|
|
timeout.relax(resolve_proxy_timestamp_);
|
|
}
|
|
}
|
|
|
|
if (timeout) {
|
|
set_timeout_at(timeout.at());
|
|
}
|
|
}
|
|
|
|
void ConnectionCreator::on_result(NetQueryPtr query) {
|
|
SCOPE_EXIT {
|
|
loop();
|
|
};
|
|
|
|
if (get_link_token() != get_proxy_info_query_token_) {
|
|
return;
|
|
}
|
|
|
|
get_proxy_info_query_token_ = 0;
|
|
auto res = fetch_result<telegram_api::help_getProxyData>(std::move(query));
|
|
if (res.is_error()) {
|
|
if (G()->close_flag()) {
|
|
return;
|
|
}
|
|
LOG(ERROR) << "Receive error for getProxyData: " << res.error();
|
|
return schedule_get_proxy_info(60);
|
|
}
|
|
on_get_proxy_info(res.move_as_ok());
|
|
}
|
|
|
|
void ConnectionCreator::on_get_proxy_info(telegram_api::object_ptr<telegram_api::help_ProxyData> proxy_data_ptr) {
|
|
CHECK(proxy_data_ptr != nullptr);
|
|
LOG(INFO) << "Receive " << to_string(proxy_data_ptr);
|
|
int32 expires = 0;
|
|
switch (proxy_data_ptr->get_id()) {
|
|
case telegram_api::help_proxyDataEmpty::ID: {
|
|
auto proxy = telegram_api::move_object_as<telegram_api::help_proxyDataEmpty>(proxy_data_ptr);
|
|
expires = proxy->expires_;
|
|
send_closure(G()->messages_manager(), &MessagesManager::on_get_sponsored_dialog_id, nullptr,
|
|
vector<tl_object_ptr<telegram_api::User>>(), vector<tl_object_ptr<telegram_api::Chat>>());
|
|
break;
|
|
}
|
|
case telegram_api::help_proxyDataPromo::ID: {
|
|
auto proxy = telegram_api::move_object_as<telegram_api::help_proxyDataPromo>(proxy_data_ptr);
|
|
expires = proxy->expires_;
|
|
send_closure(G()->messages_manager(), &MessagesManager::on_get_sponsored_dialog_id, std::move(proxy->peer_),
|
|
std::move(proxy->users_), std::move(proxy->chats_));
|
|
break;
|
|
}
|
|
default:
|
|
UNREACHABLE();
|
|
}
|
|
if (expires != 0) {
|
|
expires -= G()->unix_time();
|
|
}
|
|
schedule_get_proxy_info(expires);
|
|
}
|
|
|
|
void ConnectionCreator::schedule_get_proxy_info(int32 expires) {
|
|
if (expires < 0) {
|
|
LOG(ERROR) << "Receive wrong expires: " << expires;
|
|
expires = 0;
|
|
}
|
|
if (expires != 0 && expires < 60) {
|
|
expires = 60;
|
|
}
|
|
if (expires > 86400) {
|
|
expires = 86400;
|
|
}
|
|
get_proxy_info_timestamp_ = Timestamp::in(expires);
|
|
}
|
|
|
|
void ConnectionCreator::on_proxy_resolved(Result<IPAddress> r_ip_address, bool dummy) {
|
|
SCOPE_EXIT {
|
|
loop();
|
|
};
|
|
|
|
if (get_link_token() != resolve_proxy_query_token_) {
|
|
VLOG(connections) << "Ignore unneeded proxy IP address " << get_link_token() << ", expected "
|
|
<< resolve_proxy_query_token_;
|
|
return;
|
|
}
|
|
|
|
resolve_proxy_query_token_ = 0;
|
|
if (r_ip_address.is_error()) {
|
|
VLOG(connections) << "Receive error for resolving proxy IP address: " << r_ip_address.error();
|
|
resolve_proxy_timestamp_ = Timestamp::in(1 * 60);
|
|
return;
|
|
}
|
|
proxy_ip_address_ = r_ip_address.move_as_ok();
|
|
VLOG(connections) << "Set proxy IP address to " << proxy_ip_address_;
|
|
resolve_proxy_timestamp_ = Timestamp::in(5 * 60);
|
|
for (auto &client : clients_) {
|
|
client_loop(client.second);
|
|
}
|
|
}
|
|
|
|
void ConnectionCreator::on_ping_main_dc_result(uint64 token, Result<double> result) {
|
|
auto &request = ping_main_dc_requests_[token];
|
|
CHECK(request.left_queries > 0);
|
|
if (result.is_error()) {
|
|
LOG(DEBUG) << "Receive ping error " << result.error();
|
|
if (request.result.is_error()) {
|
|
request.result = std::move(result);
|
|
}
|
|
} else {
|
|
LOG(DEBUG) << "Receive ping result " << result.ok();
|
|
if (request.result.is_error() || request.result.ok() > result.ok()) {
|
|
request.result = result.ok();
|
|
}
|
|
}
|
|
|
|
if (--request.left_queries == 0) {
|
|
if (request.result.is_error()) {
|
|
request.promise.set_error(Status::Error(400, request.result.error().message()));
|
|
} else {
|
|
request.promise.set_value(request.result.move_as_ok());
|
|
}
|
|
ping_main_dc_requests_.erase(token);
|
|
}
|
|
}
|
|
|
|
} // namespace td
|