From 35b97ec0fe57c3bbb9c58f56452548ee6252c352 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Sa=C5=A1ek?= <marek.sasek@nic.cz>
Date: Wed, 9 Sep 2020 14:42:18 +0200
Subject: [PATCH] Add validation for SSID with diacritic

---
 src/common/WiFiSettings/WiFiSettings.js | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/common/WiFiSettings/WiFiSettings.js b/src/common/WiFiSettings/WiFiSettings.js
index a16d8d7..8b55fa5 100644
--- a/src/common/WiFiSettings/WiFiSettings.js
+++ b/src/common/WiFiSettings/WiFiSettings.js
@@ -63,6 +63,16 @@ function prepDataToSubmit(formData) {
     return formData;
 }
 
+function diacriticValidation(string) {
+    for (let i = 0; i < string.length; i++) {
+        const charCode = string.charCodeAt(i);
+        if (charCode < 32 || charCode > 127) {
+            return false;
+        }
+    }
+    return true;
+}
+
 export function validator(formData) {
     const formErrors = formData.devices.map((device) => {
         if (!device.enabled) return {};
@@ -71,6 +81,10 @@ export function validator(formData) {
         if (device.SSID.length > 32)
             errors.SSID = _("SSID can't be longer than 32 symbols");
         if (device.SSID.length === 0) errors.SSID = _("SSID can't be empty");
+        if (!diacriticValidation(device.SSID))
+            errors.SSID = _(
+                "Your SSID contains non-standard characters. These are not forbidden, but could cause problems on some devices."
+            );
 
         if (device.password.length < 8)
             errors.password = _("Password must contain at least 8 symbols");