From fab70501ce7afb6ce0ae227d47252e6c878e4870 Mon Sep 17 00:00:00 2001
From: glax <johanna@bernloehr.eu>
Date: Mon, 21 Jul 2025 13:06:35 +0200
Subject: [PATCH] Fix Concurrency of DownloadClient LastExecutedRateLimit

---
 API/MangaDownloadClients/DownloadClient.cs             | 5 +++--
 API/MangaDownloadClients/FlareSolverrDownloadClient.cs | 2 --
 API/MangaDownloadClients/HttpDownloadClient.cs         | 3 ++-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/API/MangaDownloadClients/DownloadClient.cs b/API/MangaDownloadClients/DownloadClient.cs
index 0906b14..dd12ecb 100644
--- a/API/MangaDownloadClients/DownloadClient.cs
+++ b/API/MangaDownloadClients/DownloadClient.cs
@@ -1,11 +1,12 @@
-using System.Net;
+using System.Collections.Concurrent;
+using System.Net;
 using log4net;
 
 namespace API.MangaDownloadClients;
 
 public abstract class DownloadClient
 {
-    private static readonly Dictionary<RequestType, DateTime> LastExecutedRateLimit = new();
+    private static readonly ConcurrentDictionary<RequestType, DateTime> LastExecutedRateLimit = new();
     protected ILog Log { get; init; }
 
     protected DownloadClient()
diff --git a/API/MangaDownloadClients/FlareSolverrDownloadClient.cs b/API/MangaDownloadClients/FlareSolverrDownloadClient.cs
index a29c9c8..f4861c8 100644
--- a/API/MangaDownloadClients/FlareSolverrDownloadClient.cs
+++ b/API/MangaDownloadClients/FlareSolverrDownloadClient.cs
@@ -10,8 +10,6 @@ namespace API.MangaDownloadClients;
 
 public class FlareSolverrDownloadClient : DownloadClient
 {
-    
-    
     internal override RequestResult MakeRequestInternal(string url, string? referrer = null, string? clickButton = null)
     {
         if (clickButton is not null)
diff --git a/API/MangaDownloadClients/HttpDownloadClient.cs b/API/MangaDownloadClients/HttpDownloadClient.cs
index 9b53847..9735883 100644
--- a/API/MangaDownloadClients/HttpDownloadClient.cs
+++ b/API/MangaDownloadClients/HttpDownloadClient.cs
@@ -5,6 +5,7 @@ namespace API.MangaDownloadClients;
 
 internal class HttpDownloadClient : DownloadClient
 {
+    private static readonly FlareSolverrDownloadClient FlareSolverrDownloadClient = new();
     internal override RequestResult MakeRequestInternal(string url, string? referrer = null, string? clickButton = null)
     {
         if (clickButton is not null)
@@ -36,7 +37,7 @@ internal class HttpDownloadClient : DownloadClient
                     (s.Product?.Name ?? "").Contains("cloudflare", StringComparison.InvariantCultureIgnoreCase)))
             {
                 Log.Debug("Retrying with FlareSolverr!");
-                return new FlareSolverrDownloadClient().MakeRequestInternal(url, referrer, clickButton);
+                return FlareSolverrDownloadClient.MakeRequestInternal(url, referrer, clickButton);
             }
             else
             {