fix(backend): fix creating reactions bugs (#13901)

* fix(backend): add fallback for empty string when creating reaction

* fix(backend): prohibit reactions to Renote

* test(backend): add some tests for `notes/reactions/create` endpoint

* Update CHANGELOG.md

* lint

* Update CHANGELOG.md

---------

Co-authored-by: syuilo <4439005+syuilo@users.noreply.github.com>

1 files changed, 7 insertions, 1 deletions

diff --git a/packages/backend/src/core/ReactionService.ts b/packages/backend/src/core/ReactionService.ts
index cb0b079df0..64c7b2ed03 100644
--- a/packages/backend/src/core/ReactionService.ts
+++ b/packages/backend/src/core/ReactionService.ts
@@ -29,6 +29,7 @@ import { CustomEmojiService } from '@/core/CustomEmojiService.js';
 import { RoleService } from '@/core/RoleService.js';
 import { FeaturedService } from '@/core/FeaturedService.js';
 import { trackPromise } from '@/misc/promise-tracker.js';
+import { isQuote, isRenote } from '@/misc/is-renote.js';
 
 const FALLBACK = '\u2764';
 const PER_NOTE_REACTION_USER_PAIR_CACHE_MAX = 16;
@@ -117,11 +118,16 @@ export class ReactionService {
 			throw new IdentifiableError('68e9d2d1-48bf-42c2-b90a-b20e09fd3d48', 'Note not accessible for you.');
 		}
 
+		// Check if note is Renote
+		if (isRenote(note) && !isQuote(note)) {
+			throw new IdentifiableError('12c35529-3c79-4327-b1cc-e2cf63a71925', 'You cannot react to Renote.');
+		}
+
 		let reaction = _reaction ?? FALLBACK;
 
 		if (note.reactionAcceptance === 'likeOnly' || ((note.reactionAcceptance === 'likeOnlyForRemote' || note.reactionAcceptance === 'nonSensitiveOnlyForLocalLikeOnlyForRemote') && (user.host != null))) {
 			reaction = '\u2764';
-		} else if (_reaction) {
+		} else if (_reaction != null) {
 			const custom = reaction.match(isCustomEmojiRegexp);
 			if (custom) {
 				const reacterHost = this.utilityService.toPunyNullable(user.host);