@fedify/next/dist/index.cjs

Integrate Fedify with Next.js

Object.defineProperty(exports, Symbol.toStringTag, { value: "Module" });
let next_server_js = require("next/server.js");
//#region src/index.ts
/**
* Wrapper function for Next.js middleware to integrate with the
* {@link Federation} object.
*
* @template TContextData A type of the context data for the
*                         {@link Federation} object.
* @param federation A {@link Federation} object to integrate with Next.js.
* @param contextDataFactory A function to create a context data for the
*                         {@link Federation} object.
* @param errorHandlers A set of error handlers to handle errors during
*                      the federation fetch.
* @returns A Next.js middleware function to integrate with the
*          {@link Federation} object.
*
* @example
* ```ts ignore
* import { fedifyWith } from "@fedify/next";
* import { federation } from "./federation";
*
* export default fedifyWith(federation)(
*   function (request: Request) {
*     // You can add custom logic here for other requests
*     // except federation requests.  If there is no custom logic,
*     // you can omit this function.
*   }
* )
*
* // This config makes middleware process only requests with the
* // "Accept" header matching the federation accept regex.
* // More details: https://nextjs.org/docs/app/api-reference/file-conventions/middleware#config-object-optional.
* export const config = {
*   runtime: "nodejs",
*   matcher: [
*     {
*       source: "/:path*",
*       has: [
*         {
*           type: "header",
*           key: "Accept",
*           value: ".*application\\/((jrd|activity|ld)\\+json|xrd\\+xml).*",
*         },
*       ],
*     },
*     {
*       source: "/:path*",
*       has: [
*         {
*           type: "header",
*           key: "content-type",
*           value: ".*application\\/((jrd|activity|ld)\\+json|xrd\\+xml).*",
*         },
*       ],
*     },
*     { source: "/.well-known/nodeinfo" },
*     { source: "/.well-known/x-nodeinfo2" },
*   ],
* };
* ```
*/
const fedifyWith = (federation, contextDataFactory, errorHandlers) => (middleware = ((_) => next_server_js.NextResponse.next())) => async (request) => {
	if (isFederationRequest(request)) return await integrateFederation(federation, contextDataFactory, errorHandlers)(request);
	return await middleware(request);
};
const isFederationRequest = (request) => [
	hasFederationHeader("accept"),
	hasFederationHeader("content-type"),
	isNodeInfoRequest
].some((f) => f(request));
/**
* Check if the request has the header matching the federation
* accept regex.
* @param key The header key to check.
* @param request The request to check.
* @returns `true` if the request has the header matching
*                    the federation accept regex, `false` otherwise.
*/
const hasFederationHeader = (key) => (request) => {
	const value = request.headers.get(key);
	return value ? FEDERATION_ACCEPT_REGEX.test(value) : false;
};
const isNodeInfoRequest = (request) => {
	const url = new URL(request.url);
	return NODEINFO_PATHS.some((path) => url.pathname.startsWith(path));
};
const NODEINFO_PATHS = ["/.well-known/nodeinfo", "/.well-known/x-nodeinfo2"];
const FEDERATION_ACCEPT_REGEX = /.*application\/((jrd|activity|ld)\+json|xrd\+xml).*/;
/**
* Create a Next.js handler to integrate with the {@link Federation} object.
*
* @template TContextData A type of the context data for the
*                        {@link Federation} object.
* @param federation A {@link Federation} object to integrate with Next.js.
* @param contextDataFactory A function to create a context data for the
*                           {@link Federation} object.
* @param errorHandlers A set of error handlers to handle errors during
*                      the federation fetch.
* @returns A Next.js handler.
*/
function integrateFederation(federation, contextDataFactory = () => void 0, errorHandlers) {
	return async (request) => await federation.fetch(request, {
		contextData: await contextDataFactory(request),
		onNotFound,
		onNotAcceptable,
		...errorHandlers
	});
}
const onNotFound = () => new Response("Not found", { status: 404 });
const onNotAcceptable = () => new Response("Not acceptable", {
	status: 406,
	headers: {
		"Content-Type": "text/plain",
		Vary: "Accept"
	}
});
//#endregion
exports.fedifyWith = fedifyWith;
exports.hasFederationHeader = hasFederationHeader;
exports.integrateFederation = integrateFederation;
exports.isFederationRequest = isFederationRequest;
exports.isNodeInfoRequest = isNodeInfoRequest;