From 55fb3d4e8e4570b95bf52dd8708cb0ca2b38f245 Mon Sep 17 00:00:00 2001
From: Aaron Raimist <aaron@raim.ist>
Date: Mon, 28 Jun 2021 22:32:21 -0500
Subject: [PATCH] Also prevent sending unless safe integer

Synapse enforces this but I guess it doesn't hurt to also check here

Signed-off-by: Aaron Raimist <aaron@raim.ist>
---
 src/models/room-state.ts | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/models/room-state.ts b/src/models/room-state.ts
index 6b914a1d4..2b67ee79e 100644
--- a/src/models/room-state.ts
+++ b/src/models/room-state.ts
@@ -670,26 +670,26 @@ export class RoomState extends EventEmitter {
             powerLevels = powerLevelsEvent.getContent();
             eventsLevels = powerLevels.events || {};
 
-            if (Number.isFinite(powerLevels.state_default)) {
+            if (Number.isSafeInteger(powerLevels.state_default)) {
                 stateDefault = powerLevels.state_default;
             } else {
                 stateDefault = 50;
             }
 
             const userPowerLevel = powerLevels.users && powerLevels.users[userId];
-            if (Number.isFinite(userPowerLevel)) {
+            if (Number.isSafeInteger(userPowerLevel)) {
                 powerLevel = userPowerLevel;
-            } else if (Number.isFinite(powerLevels.users_default)) {
+            } else if (Number.isSafeInteger(powerLevels.users_default)) {
                 powerLevel = powerLevels.users_default;
             }
 
-            if (Number.isFinite(powerLevels.events_default)) {
+            if (Number.isSafeInteger(powerLevels.events_default)) {
                 eventsDefault = powerLevels.events_default;
             }
         }
 
         let requiredLevel = state ? stateDefault : eventsDefault;
-        if (Number.isFinite(eventsLevels[eventType])) {
+        if (Number.isSafeInteger(eventsLevels[eventType])) {
             requiredLevel = eventsLevels[eventType];
         }
         return powerLevel >= requiredLevel;