Contacts can now accept full Unicode, fixed #172 and #171

epp/src/helpers.php

@@ -666,4 +666,20 @@ function expandIPv6($ip) {
     }
 
     return implode(':', $expanded);
+}
+
+function validateLocField($input, $minLength = 5, $maxLength = 255) {
+    // Normalize input to NFC form
+    $input = normalizer_normalize($input, Normalizer::FORM_C);
+
+    // Remove control characters to prevent hidden injections
+    $input = preg_replace('/[\p{C}]/u', '', $input);
+
+    // Define a general regex pattern to match Unicode letters, numbers, punctuation, and spaces
+    $locRegex = '/^[\p{L}\p{N}\p{P}\p{Zs}\-\/&.,]+$/u';
+
+    // Check length constraints and regex pattern
+    return mb_strlen($input) >= $minLength &&
+           mb_strlen($input) <= $maxLength &&
+           preg_match($locRegex, $input);
 }