From 738b4d69701a9d4b232f6a44b340782d096b182b Mon Sep 17 00:00:00 2001
From: Ebise Lutica <7106976+EbiseLutica@users.noreply.github.com>
Date: Sun, 18 Feb 2024 01:47:18 +0900
Subject: [PATCH] =?UTF-8?q?feat:=20=E8=87=AA=E5=88=86=E3=81=AE=E3=82=B5?=
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---
 packages/backend/src/core/NoteCreateService.ts | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/packages/backend/src/core/NoteCreateService.ts b/packages/backend/src/core/NoteCreateService.ts
index 9cec614d5c87..5a1d174d926f 100644
--- a/packages/backend/src/core/NoteCreateService.ts
+++ b/packages/backend/src/core/NoteCreateService.ts
@@ -359,6 +359,15 @@ export class NoteCreateService implements OnApplicationShutdown {
 			mentionedUsers = data.apMentions ?? await this.extractMentionedUsers(user, combinedTokens);
 		}
 
+		// #region Shrimpia
+		if (user.host != null && mentionedUsers.some(u => u.host !== null)) {
+			const userEntity = await this.usersRepository.findOneByOrFail({ id: user.id });
+			if (userEntity.followersCount === 0) {
+				throw new Error('Temporarily, notes including mentions from remote users which no followers are not allowed');
+			}
+		}
+		// #endregion
+
 		tags = tags.filter(tag => Array.from(tag).length <= 128).splice(0, 32);
 
 		if (data.reply && (user.id !== data.reply.userId) && !mentionedUsers.some(u => u.id === data.reply!.userId)) {