From 1af781a0487e86a76dc16265cb4acc0a0f0ee68a Mon Sep 17 00:00:00 2001
From: Sergey Chernov <syntezzz@gmail.com>
Date: Sun, 12 May 2024 21:26:33 +0200
Subject: [PATCH] Checking for type of forceSyncInterval (#817)

Protection from stupid error when you set forceSyncInterval to true and DDoS your server
---
 packages/provider/src/HocuspocusProvider.ts | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/packages/provider/src/HocuspocusProvider.ts b/packages/provider/src/HocuspocusProvider.ts
index 49becf2d..acdda0bc 100644
--- a/packages/provider/src/HocuspocusProvider.ts
+++ b/packages/provider/src/HocuspocusProvider.ts
@@ -216,7 +216,10 @@ export class HocuspocusProvider extends EventEmitter {
     this.awareness?.on('update', this.awarenessUpdateHandler.bind(this))
     this.registerEventListeners()
 
-    if (this.configuration.forceSyncInterval) {
+    if (
+      this.configuration.forceSyncInterval
+      && typeof this.configuration.forceSyncInterval === 'number'
+    ) {
       this.intervals.forceSync = setInterval(
         this.forceSync.bind(this),
         this.configuration.forceSyncInterval,