tdlight/tdnet/td/net/Socks5.h

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//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2018
//
// 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)
//
#pragma once
#include "td/actor/actor.h"
#include "td/utils/BufferedFd.h"
#include "td/utils/common.h"
#include "td/utils/port/IPAddress.h"
#include "td/utils/port/SocketFd.h"
#include "td/utils/Status.h"
namespace td {
class Socks5 : public Actor {
public:
class Callback {
public:
Callback() = default;
Callback(const Callback &) = delete;
Callback &operator=(const Callback &) = delete;
virtual ~Callback() = default;
virtual void set_result(Result<SocketFd>) = 0;
virtual void on_connected() = 0;
};
Socks5(SocketFd socket_fd, IPAddress ip_address, string username, string password, std::unique_ptr<Callback> callback,
ActorShared<> parent);
private:
BufferedFd<SocketFd> fd_;
IPAddress ip_address_;
string username_;
string password_;
std::unique_ptr<Callback> callback_;
ActorShared<> parent_;
void on_error(Status status);
void tear_down() override;
void start_up() override;
void hangup() override;
enum class State {
SendGreeting,
WaitGreetingResponse,
WaitPasswordResponse,
SendIpAddress,
WaitIpAddressResponse,
Stop
} state_ = State::SendGreeting;
void send_greeting();
Status wait_greeting_response();
Status send_username_password();
Status wait_password_response();
void send_ip_address();
Status wait_ip_address_response();
void loop() override;
void timeout_expired() override;
};
} // namespace td