From 499a876801daa80a63539ac347c4e438a0014e36 Mon Sep 17 00:00:00 2001
From: Jesus Ortega <jeortega10@gmail.com>
Date: Sat, 17 Apr 2021 13:13:57 +0200
Subject: [PATCH] Prevent accessing explode results when empty

Related to Generate screenshots for links #18
---
 app/Helper/HtmlMeta.php | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/app/Helper/HtmlMeta.php b/app/Helper/HtmlMeta.php
index fc45ca23..46f47829 100644
--- a/app/Helper/HtmlMeta.php
+++ b/app/Helper/HtmlMeta.php
@@ -67,13 +67,14 @@ class HtmlMeta
             ?? null;
 
         //Edge case of Youtube only (because of Youtube EU cookie consent)
-        if (str_contains($url, 'youtube')) {
-            if (is_null($thumbnail)) {
-                //Formula based on https://stackoverflow.com/a/2068371
-                $explode = explode('v=', $url);
-                //https://img.youtube.com/vi/[video-id]/mqdefault.jpg
-                $thumbnail = 'https://img.youtube.com/vi/'.$explode[1].'/mqdefault.jpg';
-            }
+        if (str_contains($url, 'youtube')
+            && str_contains($url, 'v=')
+            && is_null($thumbnail)
+        ) {
+            //Formula based on https://stackoverflow.com/a/2068371
+            $explode = explode('v=', $url);
+            //https://img.youtube.com/vi/[video-id]/mqdefault.jpg
+            $thumbnail = 'https://img.youtube.com/vi/' . $explode[1] . '/mqdefault.jpg';
         }
 
         return [