/// <reference types="node" resolution-mode="require"/>
/// <reference types="node/http.js" />
import * as HTTP from 'http';
import * as x from 'x-value';
import type { ListeningHost } from '../x.js';
import { Port } from '../x.js';
import type { NetProxyBridge, TLSProxyBridge } from './proxy-bridges/index.js';
import type { Router } from './router/index.js';
import { type Web } from './web.js';
export declare const HTTP_PROXY_REFERER_SNIFFING_OPTIONS_DEFAULT = false;
export declare const HTTPProxyRefererSniffingOptions: x.ObjectType<{
    include: x.OptionalType<x.ObjectType<{
        browsers: x.OptionalType<x.ArrayType<x.AtomicType<typeof x.stringTypeSymbol>>>;
        hosts: x.OptionalType<x.ArrayType<x.AtomicType<typeof x.stringTypeSymbol>>>;
    }>>;
    exclude: x.OptionalType<x.ObjectType<{
        browsers: x.OptionalType<x.ArrayType<x.AtomicType<typeof x.stringTypeSymbol>>>;
        hosts: x.OptionalType<x.ArrayType<x.AtomicType<typeof x.stringTypeSymbol>>>;
    }>>;
}>;
export type HTTPProxyRefererSniffingOptions = x.TypeOf<typeof HTTPProxyRefererSniffingOptions>;
export type HTTPProxyOptions = {
    host?: ListeningHost;
    port?: Port;
    refererSniffing?: HTTPProxyRefererSniffingOptions | boolean;
};
export declare class HTTPProxy {
    readonly netProxyBridge: NetProxyBridge;
    readonly tlsProxyBridge: TLSProxyBridge | undefined;
    readonly router: Router;
    readonly web: Web;
    readonly server: HTTP.Server;
    private lastContextIdNumber;
    /**
     * Sockets kept alive.
     */
    private handledRequestSocketSet;
    private refererSniffingOptions;
    constructor(index: number, netProxyBridge: NetProxyBridge, tlsProxyBridge: TLSProxyBridge | undefined, router: Router, web: Web, { host, port, refererSniffing: refererSniffingOptions, }: HTTPProxyOptions);
    private connect;
    private request;
    private preRoute;
    private getNextConnectionId;
}