Init commit

server/core/helpers/custom-validators/feeds.ts

@@ -0,0 +1,23 @@
+import { exists } from './misc.js'
+
+function isValidRSSFeed (value: string) {
+  if (!exists(value)) return false
+
+  const feedExtensions = [
+    'xml',
+    'json',
+    'json1',
+    'rss',
+    'rss2',
+    'atom',
+    'atom1'
+  ]
+
+  return feedExtensions.includes(value)
+}
+
+// ---------------------------------------------------------------------------
+
+export {
+  isValidRSSFeed
+}