import type { IncomingMessage } from "node:http";
import type { Socket } from "node:net";
import type { NextFunction, Request, Response } from "express";

export declare function parseAllowIps(raw: unknown): string[];

export declare function isValidIpEntry(entry: string): boolean;

export declare function isIpAllowed(clientIp: string, entries: string[]): boolean;

export declare function getAccessControlEntries(): string[];

export declare function refreshAccessControlCache(): void;

export declare function accessControlMiddleware(req: Request, res: Response, next: NextFunction): void;

export declare function isUpgradeAllowed(request: IncomingMessage, socket: Socket): boolean;