import { NextFunction, Request, Response } from "express";
import { ITracker } from "../domain/interfaces/tracker.interface";
export declare class DomainPolicy {
    private tracker;
    private validDomains;
    private validTopLevelDomains;
    constructor(tracker: ITracker);
    getHandler(): (request: Request, response: Response, next: NextFunction) => Promise<void>;
    validate(request: Request, response: Response): void;
    private getUrl;
    private isValid;
    private failed;
    private trackInvalidOriginDomain;
}