/// <reference types="node" />
import * as net from 'net';
import { IProxyConnection } from '../interfaces/proxy-connection';
import { ISOCKS5Response } from '../socks5/socks5-response';
import { SOCKS5GreetingRequest } from '../socks5/socks5-greeting-request';
import { SOCKS5GreetingResponse } from '../socks5/socks5-greeting-response';
import { SOCKS5ConnectionRequest } from '../socks5/socks5-connection-request';
import { SOCKS5ConnectionResponse } from '../socks5/socks5-connection-response';
import { SOCKS5AuthenticationRequest } from '../socks5/socks5-authentication-request';
import { SOCKS5AuthenticationResponse } from '../socks5/socks5-authentication-response';
import { ISocketBuilder } from '../interfaces/socket-builder';
export declare class SOCKS5ProxyConnection implements IProxyConnection {
    protected sourceSocket: net.Socket;
    protected socketBuilder: ISocketBuilder;
    protected destinationSocket: net.Socket;
    protected greetingRequest: SOCKS5GreetingRequest;
    protected greetingResponse: SOCKS5GreetingResponse;
    protected authenticationRequest: SOCKS5AuthenticationRequest;
    protected authenticationResponse: SOCKS5AuthenticationResponse;
    protected connectionRequest: SOCKS5ConnectionRequest;
    protected connectionResponse: SOCKS5ConnectionResponse;
    constructor(sourceSocket: net.Socket, socketBuilder: ISocketBuilder);
    close(): Promise<void>;
    onData(buffer: Buffer): Promise<net.Socket>;
    protected handleGreetingRequest(buffer: Buffer): void;
    protected handleAuthenticationRequest(buffer: Buffer): void;
    protected handleConnectionRequest(buffer: Buffer): Promise<void>;
    protected sendResponse(response: ISOCKS5Response): void;
}