import type { IncomingHttpHeaders } from "node:http";
import { type H3Event } from "h3";
export declare function getForwardedRequestOrigin(event: H3Event): string;
export declare function getForwardedRequestURL(event: H3Event): URL;
export declare function getForwardedRequestHostname(event: H3Event): string;
export declare function getForwardedRequestOriginFromHeaders(headers: Headers | IncomingHttpHeaders, remoteAddress?: string, protocol?: "http:" | "https:"): string;
/** Positive origin evidence must be paired with browser-cookie identity for UI proof. */
export declare function hasSameOriginBrowserEvidence(event: H3Event): boolean;
/** A cookie-writing POST requires positive origin evidence. */
export declare function isSameOriginPost(event: H3Event): boolean;
export declare function isSameOriginRequest(event: H3Event): boolean;