Kavita+ Overhaul & New Changelog (#3507)

Kavita.Common/Helpers/FlurlConfiguration.cs

@@ -0,0 +1,36 @@
+using System;
+using System.Collections.Generic;
+using System.Threading;
+using Flurl.Http;
+
+namespace Kavita.Common.Helpers;
+
+/// <summary>
+/// Helper class for configuring Flurl client for a specific URL.
+/// </summary>
+public static class FlurlConfiguration
+{
+    private static readonly List<string> ConfiguredClients = new List<string>();
+    private static readonly Lock Lock = new Lock();
+
+    /// <summary>
+    /// Configures the Flurl client for the specified URL.
+    /// </summary>
+    /// <param name="url">The URL to configure the client for.</param>
+    public static void ConfigureClientForUrl(string url)
+    {
+        //Important client are mapped without path, per example two urls pointing to the same host:port but different path, will use the same client.
+        lock (Lock)
+        {
+            var ur = new Uri(url);
+            //key is host:port
+            var host = ur.Host + ":" + ur.Port;
+            if (ConfiguredClients.Contains(host)) return;
+
+            FlurlHttp.ConfigureClientForUrl(url).ConfigureInnerHandler(cli =>
+                cli.ServerCertificateCustomValidationCallback = (_, _, _, _) => true);
+
+            ConfiguredClients.Add(host);
+        }
+    }
+}