server/server -> server/core

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

@@ -0,0 +1,30 @@
+import { exists, isArray } from './misc.js'
+import { FollowState } from '@peertube/peertube-models'
+
+function isFollowStateValid (value: FollowState) {
+  if (!exists(value)) return false
+
+  return value === 'pending' || value === 'accepted' || value === 'rejected'
+}
+
+function isRemoteHandleValid (value: string) {
+  if (!exists(value)) return false
+  if (typeof value !== 'string') return false
+
+  return value.includes('@')
+}
+
+function isEachUniqueHandleValid (handles: string[]) {
+  return isArray(handles) &&
+    handles.every(handle => {
+      return isRemoteHandleValid(handle) && handles.indexOf(handle) === handles.lastIndexOf(handle)
+    })
+}
+
+// ---------------------------------------------------------------------------
+
+export {
+  isFollowStateValid,
+  isRemoteHandleValid,
+  isEachUniqueHandleValid
+}