import type { GatewayAuthConfig, GatewayAuthPayload } from "./types.js";
/**
 * Simple token-based authentication for the gateway
 */
export declare class GatewayAuth {
    private tokens;
    private mode;
    private password?;
    private allowTailscale;
    constructor(config?: GatewayAuthConfig, initialTokens?: string[]);
    /**
     * Generate a new authentication token
     */
    generateToken(): string;
    /**
     * Validate an authentication token
     */
    validate(auth?: GatewayAuthPayload, tailscaleUser?: string): boolean;
    /**
     * Add a token to the valid tokens set
     */
    addToken(token: string): void;
    /**
     * Remove a token from the valid tokens set
     */
    revokeToken(token: string): boolean;
    /**
     * Get all valid tokens
     */
    getTokens(): string[];
    /**
     * Check if authentication is required
     */
    isAuthRequired(): boolean;
    setAuthRequired(required: boolean): void;
}