Make reactions removable

Co-authored-by: syuilo <syuilotan@yahoo.co.jp>

Resolve #367, resolve #2260, close #3503

src/server/api/endpoints/notes/reactions/delete.ts

@@ -2,6 +2,8 @@ import $ from 'cafy'; import ID, { transform } from '../../../../../misc/cafy-id
 import Reaction from '../../../../../models/note-reaction';
 import Note from '../../../../../models/note';
 import define from '../../../define';
+import { publishNoteStream } from '../../../../../stream';
+const ms = require('ms');
 
 export const meta = {
 	desc: {
@@ -13,6 +15,12 @@ export const meta = {
 
 	kind: 'reaction-write',
 
+	limit: {
+		duration: ms('1hour'),
+		max: 5,
+		minInterval: ms('3sec')
+	},
+
 	params: {
 		noteId: {
 			validator: $.type(ID),
@@ -60,4 +68,9 @@ export default define(meta, (ps, user) => new Promise(async (res, rej) => {
 	Note.update({ _id: note._id }, {
 		$inc: dec
 	});
+
+	publishNoteStream(note._id, 'unreacted', {
+		reaction: exist.reaction,
+		userId: user._id
+	});
 }));