import { IHttpContext } from './context.js';
export interface HttpCorsOpts {
    origin: string;
    credentials: boolean;
    maxAge: number;
    privateNetworkAccess: boolean;
    secureContext: boolean;
    allowMethods: string[];
    allowHeaders: string[];
    exposeHeaders: string[];
}
/**
 * CORS middleware
 * @todo handle vary origin (https://stackoverflow.com/questions/44800431/caching-effect-on-cors-no-access-control-allow-origin-header-is-present-on-th)
 */
export declare class HttpCors {
    opts: HttpCorsOpts & Record<string, any>;
    constructor(opts?: Partial<HttpCorsOpts>);
    static middleware(opts?: Partial<HttpCorsOpts>): (ctx: IHttpContext, next: any) => Promise<any>;
    /**
     *
     * @param ctx
     * @param next
     * @returns {Promise<any>}
     */
    handle(ctx: IHttpContext, next: any): Promise<any>;
}