/// <reference types="passport" />
import { ParsedRequest } from '@loopback/core';
import { Provider } from '@loopback/context';
import { Strategy } from 'passport';
/**
 * interface definition of a function which accepts a request
 * and returns an authenticated user
 */
export interface AuthenticateFn {
    (request: ParsedRequest): Promise<UserProfile>;
}
/**
 * interface definition of a user profile
 * http://openid.net/specs/openid-connect-core-1_0.html#StandardClaims
 */
export interface UserProfile {
    id: string;
    name?: string;
    email?: string;
}
/**
 * @description Provider of a function which authenticates
 * @example `context.bind('authentication_key')
 *   .toProvider(AuthenticationProvider)`
 */
export declare class AuthenticationProvider implements Provider<AuthenticateFn> {
    readonly strategy: Strategy;
    constructor(strategy: Strategy);
    /**
     * @returns authenticateFn
     */
    value(): AuthenticateFn;
}
/**
 * @description a function which accepts (passport-strategy, request)
 *   and returns a user
 * @param strategy Passport strategy
 * @param request Parsed Request
 *
 * @example
 * ```ts
 *   const strategy = new BasicStrategy(async (username, password) => {
 *     return await findUser(username, password);
 *   };
 *   getAuthenticatedUser(strategy, ParsedRequest);
 * ```
 */
export declare function getAuthenticatedUser(strategy: Strategy, request: ParsedRequest): Promise<UserProfile>;