From 92319b27f7a40662ba0a901dc69cde60e99e63be Mon Sep 17 00:00:00 2001
From: Hosteroid <office@hosteroid.uk>
Date: Tue, 21 Oct 2025 14:51:28 +0300
Subject: [PATCH] Add vCard field validation in WhoisService

Added checks to ensure vCard fields are arrays with at least 4 elements before accessing their values. This prevents potential errors when parsing registrar and abuse contact information from RDAP responses.
---
 app/Services/WhoisService.php | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/app/Services/WhoisService.php b/app/Services/WhoisService.php
index 6c48fe4..127174c 100644
--- a/app/Services/WhoisService.php
+++ b/app/Services/WhoisService.php
@@ -392,10 +392,12 @@ class WhoisService
                     // Get registrar name from vCard
                     if (isset($entity['vcardArray'][1])) {
                         foreach ($entity['vcardArray'][1] as $vcardField) {
-                            if ($vcardField[0] === 'fn') {
-                                $info['registrar'] = $vcardField[3];
-                            } elseif ($vcardField[0] === 'url') {
-                                $info['registrar_url'] = $vcardField[3];
+                            if (is_array($vcardField) && count($vcardField) >= 4) {
+                                if ($vcardField[0] === 'fn') {
+                                    $info['registrar'] = $vcardField[3];
+                                } elseif ($vcardField[0] === 'url') {
+                                    $info['registrar_url'] = $vcardField[3];
+                                }
                             }
                         }
                     }
@@ -406,8 +408,10 @@ class WhoisService
                             if (in_array('abuse', $subEntity['roles'] ?? [])) {
                                 if (isset($subEntity['vcardArray'][1])) {
                                     foreach ($subEntity['vcardArray'][1] as $vcardField) {
-                                        if ($vcardField[0] === 'email') {
-                                            $info['abuse_email'] = $vcardField[3];
+                                        if (is_array($vcardField) && count($vcardField) >= 4) {
+                                            if ($vcardField[0] === 'email') {
+                                                $info['abuse_email'] = $vcardField[3];
+                                            }
                                         }
                                     }
                                 }