From 6cee8ebe1aa48d9efa08188c4aea32ed7ae1dcf8 Mon Sep 17 00:00:00 2001
From: Eauldane <elf@eauldane.com>
Date: Wed, 3 Dec 2025 22:09:18 +0000
Subject: [PATCH] Improve URI validation beyond just scheme validation

---
 .../Settings/Widgets/ThirdRepoSettingsEntry.cs   | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/Dalamud/Interface/Internal/Windows/Settings/Widgets/ThirdRepoSettingsEntry.cs b/Dalamud/Interface/Internal/Windows/Settings/Widgets/ThirdRepoSettingsEntry.cs
index 1086a6a12..7a64f483e 100644
--- a/Dalamud/Interface/Internal/Windows/Settings/Widgets/ThirdRepoSettingsEntry.cs
+++ b/Dalamud/Interface/Internal/Windows/Settings/Widgets/ThirdRepoSettingsEntry.cs
@@ -269,8 +269,20 @@ internal class ThirdRepoSettingsEntry : SettingsEntry
     }
 
     private static bool ValidThirdPartyRepoUrl(string url)
-        => Uri.TryCreate(url, UriKind.Absolute, out var uriResult)
-        && (uriResult.Scheme == Uri.UriSchemeHttps || uriResult.Scheme == Uri.UriSchemeHttp);
+    {
+        if (!Uri.TryCreate(url, UriKind.Absolute, out var uriResult))
+            return false;
+
+        if (uriResult.Scheme != Uri.UriSchemeHttps && uriResult.Scheme != Uri.UriSchemeHttp)
+            return false;
+
+        if (string.IsNullOrWhiteSpace(uriResult.Host))
+            return false;
+
+        var hostNameType = Uri.CheckHostName(uriResult.Host);
+        return hostNameType != UriHostNameType.Unknown
+               && Uri.IsWellFormedUriString(url, UriKind.Absolute);
+    }
 
     private bool ValidateTempRepoInput()
     {