better-auth/dist/integrations/svelte-kit.mjs

The most comprehensive authentication framework for TypeScript.

import { parseSetCookieHeader, toCookieOptions } from "../cookies/cookie-utils.mjs";
import { PACKAGE_VERSION } from "../version.mjs";
import { warnIfCookiePluginNotLast } from "./cookie-plugin-guard.mjs";
import { createAuthMiddleware } from "@better-auth/core/api";
//#region src/integrations/svelte-kit.ts
const toSvelteKitHandler = (auth) => {
	return (event) => auth.handler(event.request);
};
const svelteKitHandler = async ({ auth, event, resolve, building }) => {
	if (building) return resolve(event);
	const { request, url } = event;
	if (isAuthPath(url.toString(), auth.options)) return auth.handler(request);
	return resolve(event);
};
function isAuthPath(url, options) {
	const _url = new URL(url);
	const baseURLStr = typeof options.baseURL === "string" ? options.baseURL : void 0;
	const baseURL = new URL(`${baseURLStr || _url.origin}${options.basePath || "/api/auth"}`);
	if (_url.origin !== baseURL.origin) return false;
	if (!_url.pathname.startsWith(baseURL.pathname.endsWith("/") ? baseURL.pathname : `${baseURL.pathname}/`)) return false;
	return true;
}
const sveltekitCookies = (getRequestEvent) => {
	let hasWarned = false;
	return {
		id: "sveltekit-cookies",
		version: PACKAGE_VERSION,
		hooks: { after: [{
			matcher() {
				return true;
			},
			handler: createAuthMiddleware(async (ctx) => {
				if (!hasWarned) {
					warnIfCookiePluginNotLast(ctx.context, "sveltekit-cookies");
					hasWarned = true;
				}
				const returned = ctx.context.responseHeaders;
				if ("_flag" in ctx && ctx._flag === "router") return;
				if (returned instanceof Headers) {
					const setCookies = returned?.get("set-cookie");
					if (!setCookies) return;
					const event = getRequestEvent();
					if (!event) return;
					const parsed = parseSetCookieHeader(setCookies);
					for (const [name, attributes] of parsed) try {
						event.cookies.set(name, attributes.value, {
							...toCookieOptions(attributes),
							path: attributes.path || "/"
						});
					} catch {}
				}
			})
		}] }
	};
};
//#endregion
export { isAuthPath, svelteKitHandler, sveltekitCookies, toSvelteKitHandler };