Add config option to only let specific users log into app

1 files changed, 5 insertions, 2 deletions

diff --git a/VPNAuth.Server/Pages/Auth.cshtml.cs b/VPNAuth.Server/Pages/Auth.cshtml.cs
index 1f75492..ea648cb 100644
--- a/VPNAuth.Server/Pages/Auth.cshtml.cs
+++ b/VPNAuth.Server/Pages/Auth.cshtml.cs
@@ -7,6 +7,7 @@ namespace VPNAuth.Server.Pages;
 public class Auth : PageModel
 {
     public Config Config;
+    public ConfigApp? ConfApp;
     public ConfigUser? User;
     public bool ValidRequest;
     public EntityEntry<AuthRequest>? RequestEntry;
@@ -23,12 +24,14 @@ public class Auth : PageModel
     public void OnGet()
     {
         Config = Config.Read();
+        ConfApp = Config.FindApp(Request.Query["client_id"]);
         User = HttpContext.GetUser();
 
         ValidRequest = RequiredQueryParams.All(key => Request.Query.ContainsKey(key))
-                            && Config.FindApp(Request.Query["client_id"]!) != null
+                            && ConfApp != null
                             && Request.Query["code_challenge_method"] == "S256"
-                            && User != null;
+                            && User != null
+                            && (ConfApp.AllowedUsers == null || ConfApp.AllowedUsers!.Contains(User.Username!));
 
         RequestEntry = null;