feat: support .rss3 output type (#15258)

Co-authored-by: pull[bot] <39814207+pull[bot]@users.noreply.github.com>

Author: HenryQW

lib/middleware/template.tsx

@@ -1,4 +1,4 @@
-import { rss3Ums, json, RSS, Atom } from '@/utils/render';
+import { rss3, json, RSS, Atom } from '@/utils/render';
 import { config } from '@/config';
 import { collapseWhitespace, convertDateToISO8601 } from '@/utils/common-utils';
 import type { MiddlewareHandler } from 'hono';
@@ -94,8 +94,9 @@ const middleware: MiddlewareHandler = async (ctx, next) => {
         return ctx.json(result);
     }
 
-    if (outputType === 'ums') {
-        return ctx.json(rss3Ums(result));
+    // retain .ums for backward compatibility
+    if (outputType === 'ums' || outputType === 'rss3') {
+        return ctx.json(rss3(result));
     } else if (outputType === 'json') {
         ctx.header('Content-Type', 'application/feed+json; charset=UTF-8');
         return ctx.body(json(result));

lib/utils/render.ts

@@ -1,4 +1,4 @@
-export { default as rss3Ums } from '@/views/rss3-ums';
+export { default as rss3 } from '@/views/rss3';
 export { default as json } from '@/views/json';
 export { default as RSS } from '@/views/rss';
 export { default as Atom } from '@/views/atom';

lib/views/rss3-ums.ts renamed to lib/views/rss3.ts

@@ -10,7 +10,7 @@ const NETWORK = 'RSS';
 const TAG = 'RSS';
 const TYPE = 'feed';
 
-const rss3Ums = (data) => {
+const rss3 = (data) => {
     const currentUnixTsp = dayjs().unix();
     const umsResult = {
         data: data.item.map((item) => {
@@ -59,4 +59,4 @@ function getOwnershipFieldFromURL(item) {
     }
 }
 
-export default rss3Ums;
+export default rss3;