/// <reference types="node" />
import { Viewer } from "../core/base";
import { RequestContext } from "../core/context";
import { IncomingMessage, ServerResponse } from "http";
export declare type AuthViewer = Viewer | null;
export interface AuthHandler {
    authViewer(ctx: RequestContext): AuthViewer | Promise<AuthViewer>;
}
export declare function registerAuthHandler(name: string, auth: AuthHandler): Promise<void>;
export declare function clearAuthHandlers(): Promise<void>;
export declare function getLoggedInViewer(context: RequestContext): Promise<Viewer | null>;
export declare function buildContext(request: IncomingMessage, response: ServerResponse): Promise<RequestContext>;