/// <reference types="node" />
import * as net from 'net';
import { Event, Disposable } from 'vscode-jsonrpc';
import { SshServerSession, SshServerCredentials, SshSessionConfiguration, Stream, Trace } from '@microsoft/dev-tunnels-ssh';
import { TcpListenerFactory } from './tcpListenerFactory';
/**
 * Enables accepting SSH sessions on a TCP socket.
 *
 * It's possible to create an `SshServerSession` over any `Stream` instance;
 * this class is merely a convenient helper that manages creating sessions
 * over Node.js TCP `Socket`s from incoming connections.
 */
export declare class SshServer implements Disposable {
    private config;
    private tcpListener?;
    private readonly sessions;
    private readonly reconnectableSessions;
    constructor(config: SshSessionConfiguration);
    /**
     * Gets or sets a function that handles trace messages associated with the server sessions.
     *
     * By default, no messages are traced. To enable tracing, set this property to a function
     * that routes the message to console.log, a file, or anywhere else.
     *
     * @param level The level of message being traced: error, warning, info, or verbose.
     * @param eventId An integer that identifies the type of event. Normally this is one of
     * the values from `SshTraceEventIds`, but extensions may define additional event IDs.
     * @param msg A description of the event (non-localized).
     * @param err Optional `Error` object associated with the event, often included with
     * warning or error events. While the `Error.message` property is typically included as
     * (part of) the `msg` parameter, the error object may contain additional useful context
     * such as the stack trace.
     */
    trace: Trace;
    private readonly errorEmitter;
    readonly onError: Event<Error>;
    private readonly sessionOpenedEmitter;
    readonly onSessionOpened: Event<SshServerSession>;
    readonly credentials: SshServerCredentials;
    /**
     * Gets or sets a factory for creating TCP listeners.
     *
     * Applications may override this factory to provide custom logic for selecting
     * local port numbers to listen on for port-forwarding.
     */
    tcpListenerFactory: TcpListenerFactory;
    acceptSessions(localPort: number, localAddress?: string): Promise<void>;
    protected acceptConnection(socket: net.Socket): Promise<Stream>;
    private acceptSession;
    dispose(): void;
}
//# sourceMappingURL=sshServer.d.ts.map