import { Request, Response, NextFunction } from "express";
import { ShieldRule } from "./types/ShieldTypes";
export declare class NehonixShield {
    private ruleEngine;
    private trustedProxies;
    private bannedIPs;
    private bannedRanges;
    private maxPayloadSize;
    constructor(config: {
        trustedProxies?: string[];
        bannedIPs?: string[];
        bannedRanges?: string[];
        maxPayloadSize?: number;
        customRules?: ShieldRule[];
    });
    setupCSP: (req: Request, res: Response, next: NextFunction) => void;
    csrfProtection: (req: Request, res: Response, next: NextFunction) => void | Response<any, Record<string, any>>;
    configureTrustedProxy: (req: any, res: Response, next: NextFunction) => void;
    secureCoookieSettings: (req: Request, res: Response, next: NextFunction) => void;
    validateRequest: (req: Request, res: Response, next: NextFunction) => Promise<Response<any, Record<string, any>> | undefined>;
    ipFilter: (req: Request, res: Response, next: NextFunction) => Response<any, Record<string, any>> | undefined;
    additionalSecurityHeaders: (req: Request, res: Response, next: NextFunction) => void;
    applyMiddleware(app: any): any;
    loadRules(rules: ShieldRule[]): void;
}
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