import type { Readable } from 'node:stream';
import type { Request } from 'express';
import type { Authenticator as AuthenticatorInterface, AuthResponse as NepheleAuthResponse } from 'nephele';
import User from './User.js';
export type AuthenticatorConfig = {
    realm?: string;
    unauthorizedAccess?: boolean;
    authUserFilename?: string;
    authUserFile?: string;
    blockAuthUserFilename?: boolean;
};
export type AuthResponse = NepheleAuthResponse<any, {
    user: User;
}>;
export default class Authenticator implements AuthenticatorInterface {
    realm: string;
    unauthorizedAccess: boolean;
    authUserFilename: string;
    authUserFile?: string;
    blockAuthUserFilename: boolean;
    constructor({ realm, unauthorizedAccess, authUserFilename, authUserFile, blockAuthUserFilename, }?: AuthenticatorConfig);
    authenticate(request: Request, response: AuthResponse): Promise<User>;
    cleanAuthentication(_request: Request, _response: AuthResponse): Promise<void>;
    _checkHtpasswd(username: string, password: string, htpasswd: string): Promise<boolean>;
    _checkPassword(digest: string, password: string): Promise<boolean>;
    _getHtpasswdFile(request: Request, response: AuthResponse): Promise<string>;
    _streamToString(stream: Readable): Promise<string>;
}