Custom reaction (#4517)

* Custom reaction

* increase limit of reactions/delete

* リアクションの場合は OS標準の絵文字を使用 を迂回する

* カスタムリアクションを無効にする設定

* fix

* disableCustomReaction --> enableEmojiReaction

* Avoid MFM rendering

* 🎨

* 🎨

* Auto accept

* custom emoji reaction

* Improve usability

* Extract emojiRegex

* Fix

* Clean up

* 🎨

* 🎨

* toDbReaction で reaction は必須に

あとフォールバックは like に

* Clean up

* Make required

* 3eb08748fe (r266241728)

* Refactor

* Allow null

src/services/note/reaction/create.ts

@@ -10,6 +10,8 @@ import { deliver } from '../../../queue';
 import { renderActivity } from '../../../remote/activitypub/renderer';
 import perUserReactionsChart from '../../../services/chart/per-user-reactions';
 import { IdentifiableError } from '../../../misc/identifiable-error';
+import { toDbReaction } from '../../../misc/reaction-lib';
+import fetchMeta from '../../../misc/fetch-meta';
 
 export default async (user: IUser, note: INote, reaction: string) => {
 	// Myself
@@ -17,6 +19,9 @@ export default async (user: IUser, note: INote, reaction: string) => {
 		throw new IdentifiableError('2d8e7297-1873-4c00-8404-792c68d7bef0', 'cannot react to my note');
 	}
 
+	const meta = await fetchMeta();
+	reaction = await toDbReaction(reaction, meta.enableEmojiReaction);
+
 	// Create reaction
 	await NoteReaction.insert({
 		createdAt: new Date(),