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44 lines
1.3 KiB
44 lines
1.3 KiB
using HarmonyLib;
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using System.Reflection;
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namespace IPA.Loader
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{
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internal static class HarmonyProtectorProxy
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{
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public static void ProtectNull() => HarmonyProtector.Protect();
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}
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internal static class HarmonyProtector
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{
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private static Harmony instance;
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private static Assembly selfAssem;
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private static Assembly harmonyAssem;
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public static void Protect(Harmony inst = null)
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{
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selfAssem = Assembly.GetExecutingAssembly();
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harmonyAssem = typeof(Harmony).Assembly;
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if (inst == null)
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{
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if (instance == null)
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instance = new Harmony("BSIPA Safeguard");
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inst = instance;
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}
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var target = typeof(PatchProcessor).GetMethod("Patch");
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var patch = typeof(HarmonyProtector).GetMethod(nameof(PatchProcessor_Patch_Prefix), BindingFlags.NonPublic | BindingFlags.Static);
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inst.Patch(target, new HarmonyMethod(patch));
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}
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private static bool PatchProcessor_Patch_Prefix(MethodBase ___original, out MethodInfo __result)
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{
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var asm = ___original.DeclaringType.Assembly;
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__result = ___original as MethodInfo;
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return !(asm.Equals(selfAssem) || asm.Equals(harmonyAssem));
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}
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}
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}
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