Initial commit

Core/BuildSettings.cs

@@ -0,0 +1,209 @@
+// Undead Universal Patch - for patching Rec Room builds
+// Copyright (C) 2026 proxnet.dev (@zombieb)
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY
+
+using HarmonyLib;
+using System;
+using System.Linq;
+using System.Reflection;
+using UndeadUniversalPatch.Core.Exceptions;
+
+namespace UndeadUniversalPatch.Core;
+
+internal static class BuildSettings
+{
+    public static Assembly GetAssemblyCSharp()
+    {
+        if (!Init.GetIsRecRoom())
+            throw new NotRecRoomException();
+
+        return AccessTools.TypeByName("BootSequence").Assembly; // always unobfuscated
+    }
+
+    private static Type GetBuildSettings()
+    {
+        var assembly = GetAssemblyCSharp();
+
+        try
+        {
+            Type type = assembly.GetTypes().First(type => Symbols.BuildSettings.Contains(type.Name));
+            return type;
+        } catch (ReflectionTypeLoadException ex)
+        {
+            Type type = ex.Types.First(type => Symbols.BuildSettings.Contains(type.Name));
+            return type;
+        } catch
+        {
+            return null;
+        }
+    }
+
+    public static string GetVersion()
+    {
+        var unknown = "Unknown Version";
+
+        var buildSettings = GetBuildSettings();
+        if (buildSettings == null)
+#if NET35
+        {
+            try
+            {
+                // doesn't exist? -> error will be caught & unknown will be returned
+                var field = AccessTools.Field("PUNNetworkManager:BUILD_VERSION");
+
+                if (field != null) return (string)field.GetValue(null);
+                else return "Unknown Legacy Version";
+            } catch
+            {
+                return unknown;
+            }
+        }
+#else
+          return unknown;
+#endif
+
+        Func<string, bool> check = (string value) =>
+        {
+            if (value == null) return false;
+            return value.StartsWith("20") || value.EndsWith("_EA");
+        };
+
+        try
+        {
+#if NET6_0
+            return (string)buildSettings.GetRuntimeProperties().Where(prop => prop.PropertyType == typeof(string)).First(prop =>
+            {
+                var value = (string)prop.GetValue(null);
+                return check(value);
+            }).GetValue(null);
+#else
+            return (string)buildSettings.GetFields().Where(field => field.FieldType == typeof(string)).First(field =>
+            {
+                var value = (string)field.GetValue(null);
+                return check(value);
+            }).GetValue(null);
+#endif
+        }
+        catch
+        {
+            return unknown;
+        }
+    }
+
+    public static string GetBuildTimestamp()
+    {
+        var unknown = "Unknown Timestamp";
+
+        var buildSettings = GetBuildSettings();
+        if (buildSettings == null) return unknown;
+
+        // Only one `long` exists on BuildSettings across all supported builds
+        try
+        {
+#if NET6_0
+            var foundProp = buildSettings.GetRuntimeProperties()
+                .First(prop => prop.PropertyType == typeof(long));
+
+            var value = (long)foundProp.GetValue(null);
+            return new DateTime(value).ToString();
+#else
+            var foundField = buildSettings.GetFields()
+                .First(field => field.FieldType == typeof(long));
+
+            var value = (long)foundField.GetValue(null);
+            return new DateTime(value).ToString();
+#endif
+        }
+        catch
+        {
+            return unknown;
+        }
+    }
+
+    private static class Symbols
+    {
+        // type list compiled by @zombieb
+        public static string[] BuildSettings = [
+            "BuildSettings",
+            "BBHENFCNLAB",
+            "KMJJGELKNAP",
+            "FJEEPOKGDNG",
+            "LACHJMJGMPK",
+            "NNBKABHFGFB",
+            "KMGJBIHAAJL",
+            "FALNDOJFPMN",
+            "IODMKGDNMID",
+            "HIPJBMLBLHH",
+            "LEADBBLICBL",
+            "NPPACKKFLIK",
+            "MOFAAFLMFJO",
+            "EMIDOAHOJNO",
+            "IKJNDDBHIAC",
+            "OOCIKEIJMCA",
+            "HPFCOJFIIKK",
+            "MONBJIBCJFA",
+            "GFDKEKGOMCP",
+            "MIMHAGFDGND",
+            "LFJMHJPHKOK",
+            "NOHBMMJBMIP",
+            "GJBEJNGDEJM",
+            "OGBGLFJGKJL",
+            "PEJOGOOEOKE",
+            "FDKFNHNNDEE",
+            "EDNIOJBEKLL",
+            "FEKFIFPGDDP",
+            "POOFEABAPOB",
+            "JHFKADKFKPD",
+            "GGKABOEOKMI",
+            "FAPDBIGGJHM",
+            "EPKEIOCFFMO",
+            "ECLPNEHKLEP",
+            "BGMDPOMLCKD",
+            "IMJIAGILBOG",
+            "OGGKBKOBHLP",
+            "DMAKDOEIOFE",
+            "HHGCEDNGMDD",
+            "OFDPCKGMCFG",
+            "FPABNHKCIDD",
+            "NEOOKMCECAL",
+            "CKEBMNKBEAH",
+            "IBPMLICGIOI",
+            "LMJOEPJHBLC",
+            "HJINOEPLIMF",
+            "JMHFJIBKCMG",
+            "HJKAEMGCIGB",
+            "BNOEINBHPIG",
+            "AJJAIFIKCJP",
+            "FCPHGJMAGPI",
+            "DDCENHLJGNM",
+            "AEPEEKCCDJL",
+            "IDDIAODMAPP",
+            "CHIMGKLHFMK",
+            "OGDOAJJPBOC",
+            "EMABNNHNJIB",
+            "JNEAMPKAHFM",
+            "FPGILFHDJNI",
+            "MDPMNBEPOKF",
+            "FNKGHFILBEE",
+            "AEOMDHAKPGC",
+            "OGEBJBBMDEO",
+            "CJMCNIDOMCP",
+            "LCCKMCOLKFI",
+            "DEIHAEKLPDJ",
+            "LENMMNLPJOL",
+            "JKNIDJECBFD",
+            "FMEMABGECKK",
+            "HAOBGEPJMAN",
+            "FDCGGKFBOPN",
+            "OKCPMCEGCOK",
+            "BNKCNOFCGDK"
+        ];
+    }
+}