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;
    getUser: (username: string) => Promise<User | null>;
    key?: string;
    nonceTimeout?: number;
} & ({
    authBasic: (user: User, password: string) => Promise<boolean>;
} | {
    authDigest: (user: User, realm: string, algorithm: 'sha256' | 'md5') => Promise<{
        password: string;
    } | {
        hash: string;
    } | null>;
});
export type AuthResponse = NepheleAuthResponse<any, {
    user: User;
}>;
export default class Authenticator implements AuthenticatorInterface {
    getUser: (username: string) => Promise<User | null>;
    authBasic?: (user: User, password: string) => Promise<boolean>;
    authDigest?: (user: User, realm: string, algorithm: 'sha256' | 'md5') => Promise<{
        password: string;
    } | {
        hash: string;
    } | null>;
    realm: string;
    unauthorizedAccess: boolean;
    key: string;
    nonceTimeout: number;
    constructor(config: AuthenticatorConfig);
    authenticate(request: Request, response: AuthResponse): Promise<User>;
    cleanAuthentication(_request: Request, _response: AuthResponse): Promise<void>;
}