From ba0171d5c2eeab2ff2e551dd182cb699df06ff07 Mon Sep 17 00:00:00 2001
From: Crypto137 <Crypto137@users.noreply.github.com>
Date: Thu, 23 Oct 2025 22:12:18 +0300
Subject: [PATCH] Web Dashboard: Mirror server-side email validation

---
 .../Data/Web/Dashboard/script.js              | 23 +++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/src/MHServerEmu.WebFrontend/Data/Web/Dashboard/script.js b/src/MHServerEmu.WebFrontend/Data/Web/Dashboard/script.js
index 8ae15e4e..f6f4ce55 100644
--- a/src/MHServerEmu.WebFrontend/Data/Web/Dashboard/script.js
+++ b/src/MHServerEmu.WebFrontend/Data/Web/Dashboard/script.js
@@ -371,11 +371,18 @@ const createAccountTab = {
 		if (this.pendingAccountData != null)
 			return;
 
+		email.setCustomValidity("");
 		confirmPassword.setCustomValidity("");
 
 		if (email.reportValidity() == false || playerName.reportValidity() == false || password.reportValidity() == false)
 			return;
 
+		if (this.validateEmail(email.value) == false) {
+			email.setCustomValidity("Invalid email.");
+			email.reportValidity();
+			return;
+		}
+
 		if (password.value != confirmPassword.value) {
 			confirmPassword.setCustomValidity("Your passwords do not match.");
 			confirmPassword.reportValidity();
@@ -400,6 +407,22 @@ const createAccountTab = {
 		this.pendingAccountData = null;
 	},
 
+	validateEmail(email) {
+		const atIndex = email.indexOf('@');
+		if (atIndex == -1)
+			return false;
+
+		const dotIndex = email.lastIndexOf('.');
+		if (dotIndex < atIndex)
+			return false;
+
+		const topDomainLength = email.length - (dotIndex + 1);
+		if (topDomainLength < 2)
+			return false;
+
+		return true;
+	},
+
 	getAccountOperationResultString(resultCode) {
 		const email = this.pendingAccountData.Email;
 		const playerName = this.pendingAccountData.PlayerName;