refactoring

Resolve #7779

packages/backend/src/server/api/endpoints/drive/files/check-existence.ts

@@ -0,0 +1,31 @@
+import $ from 'cafy';
+import define from '../../../define';
+import { DriveFiles } from '@/models/index';
+
+export const meta = {
+	tags: ['drive'],
+
+	requireCredential: true as const,
+
+	kind: 'read:drive',
+
+	params: {
+		md5: {
+			validator: $.str,
+		}
+	},
+
+	res: {
+		type: 'boolean' as const,
+		optional: false as const, nullable: false as const,
+	},
+};
+
+export default define(meta, async (ps, user) => {
+	const file = await DriveFiles.findOne({
+		md5: ps.md5,
+		userId: user.id,
+	});
+
+	return file != null;
+});