From 0e0c6f2c3a233de2900a015c8ce1ec1bf1e5deaf Mon Sep 17 00:00:00 2001
From: Paul Makles <paulmakles@gmail.com>
Date: Sat, 13 Aug 2022 20:26:09 +0200
Subject: [PATCH] fix: validate number of reactions on message when adding more

---
 crates/quark/src/impl/generic/channels/message.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/crates/quark/src/impl/generic/channels/message.rs b/crates/quark/src/impl/generic/channels/message.rs
index 1352568a..46528eab 100644
--- a/crates/quark/src/impl/generic/channels/message.rs
+++ b/crates/quark/src/impl/generic/channels/message.rs
@@ -195,6 +195,11 @@ impl Message {
 
     /// Add a reaction to a message
     pub async fn add_reaction(&self, db: &Database, user: &User, emoji: &str) -> Result<()> {
+        // Check how many reactions are already on the message
+        if self.reactions.len() >= 20 {
+            return Err(Error::InvalidOperation);
+        }
+
         // Check if the emoji is whitelisted
         if !self.interactions.can_use(emoji) {
             return Err(Error::InvalidOperation);