From e2c6996293e0c41328f6a54efaf6933dab835a66 Mon Sep 17 00:00:00 2001
From: Tom Arra <tarra3@gmail.com>
Date: Wed, 11 May 2022 08:08:10 -0500
Subject: [PATCH] updated initial check for specific characters

---
 firestore.rules | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/firestore.rules b/firestore.rules
index c56ef0f8..9fb76e27 100644
--- a/firestore.rules
+++ b/firestore.rules
@@ -9,7 +9,7 @@ service cloud.firestore {
       }
       
       function inCharLimit(initials) {
-        return initials.size() == 3;
+        return initials.size() == 3 && initials.matches('[A-Z][A-Z][A-Z]');
       }
 
       function isValidScore(score) {
@@ -17,7 +17,7 @@ service cloud.firestore {
       }
       
       function isAuthedUser(auth) {
-      	return request.auth.uid != null && auth.token.firebase.sign_in_provider == "anonymous"
+      	return request.auth.uid != null && auth.token.firebase.sign_in_provider == 'anonymous'
       }
 
       function isValidCharacter(character) {