From d270c27f4ffc4e59831f4154a5865184ce06acb0 Mon Sep 17 00:00:00 2001
From: da3dsoul <da3dsoul@gmail.com>
Date: Mon, 2 Oct 2023 18:28:30 -0400
Subject: [PATCH] Try a custom SerializationBinder so that moving namespaces
 doesn't completely break filters

---
 .../NHIbernate/FilterExpressionConverter.cs   |  4 ++-
 .../SimpleNameSerializationBinder.cs          | 33 +++++++++++++++++++
 2 files changed, 36 insertions(+), 1 deletion(-)
 create mode 100644 Shoko.Server/Databases/NHIbernate/SimpleNameSerializationBinder.cs

diff --git a/Shoko.Server/Databases/NHIbernate/FilterExpressionConverter.cs b/Shoko.Server/Databases/NHIbernate/FilterExpressionConverter.cs
index f55c027c4..5456404a6 100644
--- a/Shoko.Server/Databases/NHIbernate/FilterExpressionConverter.cs
+++ b/Shoko.Server/Databases/NHIbernate/FilterExpressionConverter.cs
@@ -32,6 +32,7 @@ public override object ConvertFrom(ITypeDescriptorContext context, System.Global
         {
             MissingMemberHandling = MissingMemberHandling.Ignore,
             TypeNameHandling = TypeNameHandling.Objects,
+            SerializationBinder = new SimpleNameSerializationBinder(),
             Error = (_, args) =>
             {
                 LogManager.GetCurrentClassLogger().Error(args.ErrorContext.Error);
@@ -60,7 +61,8 @@ public override object ConvertTo(ITypeDescriptorContext context, System.Globaliz
         return JsonConvert.SerializeObject(value, new JsonSerializerSettings
         {
             MissingMemberHandling = MissingMemberHandling.Ignore,
-            TypeNameHandling = TypeNameHandling.Objects
+            TypeNameHandling = TypeNameHandling.Objects,
+            SerializationBinder = new SimpleNameSerializationBinder(),
         });
     }
 
diff --git a/Shoko.Server/Databases/NHIbernate/SimpleNameSerializationBinder.cs b/Shoko.Server/Databases/NHIbernate/SimpleNameSerializationBinder.cs
new file mode 100644
index 000000000..a9b3688a4
--- /dev/null
+++ b/Shoko.Server/Databases/NHIbernate/SimpleNameSerializationBinder.cs
@@ -0,0 +1,33 @@
+using System;
+using System.Linq;
+using Newtonsoft.Json.Serialization;
+using NLog;
+
+namespace Shoko.Server.Databases.NHIbernate;
+
+public class SimpleNameSerializationBinder : DefaultSerializationBinder
+{
+    private readonly Logger _logger = LogManager.GetCurrentClassLogger();
+    private readonly Type _baseType;
+
+    public SimpleNameSerializationBinder(Type baseType = null)
+    {
+        _baseType = baseType;
+    }
+    
+    public override void BindToName(
+        Type serializedType, out string assemblyName, out string typeName)
+    {
+        assemblyName = null;
+        typeName = serializedType.Name;
+    }
+
+    public override Type BindToType(string assemblyName, string typeName)
+    {
+        var name = typeName.Split('.').LastOrDefault();
+        var types = AppDomain.CurrentDomain.GetAssemblies().SelectMany(a => a.GetTypes())
+            .Where(a => a.Name.Equals(name) && (_baseType == null || _baseType.IsAssignableFrom(a))).ToArray();
+        if (types.Length > 1) _logger.Warn($"SimpleNameSerializationBinder found multiple types that match {name}");
+        return types.FirstOrDefault();
+    }
+}