261 lines
9.6 KiB
C#
261 lines
9.6 KiB
C#
using System;
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using System.Linq;
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using System.Reflection;
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using MoonSharp.Interpreter;
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using HarmonyLib;
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using System.Collections.Generic;
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using System.Text;
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using MoonSharp.Interpreter.Interop;
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using static Barotrauma.LuaCsSetup;
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using System.Threading;
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using System.Diagnostics;
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namespace Barotrauma
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{
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partial class LuaCsHook
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{
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private Dictionary<long, HashSet<(string, LuaCsPatch, ACsMod)>> compatHookPrefixMethods;
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private Dictionary<long, HashSet<(string, LuaCsPatch, ACsMod)>> compatHookPostfixMethods;
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private static void _hookLuaCsPatch(MethodBase __originalMethod, object[] __args, object __instance, out object result, HookMethodType hookMethodType)
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{
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result = null;
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try
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{
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var funcAddr = ((long)__originalMethod.MethodHandle.GetFunctionPointer());
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HashSet<(string, LuaCsPatch, ACsMod)> methodSet = null;
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switch (hookMethodType)
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{
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case HookMethodType.Before:
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instance.compatHookPrefixMethods.TryGetValue(funcAddr, out methodSet);
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break;
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case HookMethodType.After:
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instance.compatHookPostfixMethods.TryGetValue(funcAddr, out methodSet);
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break;
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default:
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break;
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}
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if (methodSet != null)
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{
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var @params = __originalMethod.GetParameters();
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var args = new Dictionary<string, object>();
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for (int i = 0; i < @params.Length; i++)
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{
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args.Add(@params[i].Name, __args[i]);
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}
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var outOfSocpe = new HashSet<(string, LuaCsPatch, ACsMod)>();
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foreach (var tuple in methodSet)
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{
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if (tuple.Item3 != null && tuple.Item3.IsDisposed)
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{
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outOfSocpe.Add(tuple);
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}
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else
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{
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var _result = tuple.Item2(__instance, args);
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if (_result != null)
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{
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if (_result is LuaResult res)
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{
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if (!res.IsNull())
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{
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if (__originalMethod is MethodInfo mi && mi.ReturnType != typeof(void))
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{
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result = res.DynValue().ToObject(mi.ReturnType);
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}
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else
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{
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result = res.DynValue().ToObject();
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}
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}
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}
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else
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{
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result = _result;
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}
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}
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}
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}
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foreach (var tuple in outOfSocpe) { methodSet.Remove(tuple); }
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}
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}
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catch (Exception ex)
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{
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GameMain.LuaCs.HandleException(ex, $"Error in {__originalMethod.Name}:", exceptionType: LuaCsSetup.ExceptionType.Both);
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}
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}
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private static bool HookLuaCsPatchPrefix(MethodBase __originalMethod, object[] __args, object __instance)
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{
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_hookLuaCsPatch(__originalMethod, __args, __instance, out object result, HookMethodType.Before);
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return result == null;
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}
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private static void HookLuaCsPatchPostfix(MethodBase __originalMethod, object[] __args, object __instance) =>
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_hookLuaCsPatch(__originalMethod, __args, __instance, out object _, HookMethodType.After);
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private static bool HookLuaCsPatchRetPrefix(MethodBase __originalMethod, object[] __args, ref object __result, object __instance)
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{
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_hookLuaCsPatch(__originalMethod, __args, __instance, out object result, HookMethodType.Before);
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if (result != null)
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{
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__result = result;
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return false;
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}
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else return true;
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}
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private static void HookLuaCsPatchRetPostfix(MethodBase __originalMethod, object[] __args, ref object __result, object __instance)
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{
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_hookLuaCsPatch(__originalMethod, __args, __instance, out object result, HookMethodType.After);
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if (result != null) __result = result;
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}
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private static MethodInfo _miHookLuaCsPatchPrefix = typeof(LuaCsHook).GetMethod("HookLuaCsPatchPrefix", BindingFlags.NonPublic | BindingFlags.Static);
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private static MethodInfo _miHookLuaCsPatchPostfix = typeof(LuaCsHook).GetMethod("HookLuaCsPatchPostfix", BindingFlags.NonPublic | BindingFlags.Static);
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private static MethodInfo _miHookLuaCsPatchRetPrefix = typeof(LuaCsHook).GetMethod("HookLuaCsPatchRetPrefix", BindingFlags.NonPublic | BindingFlags.Static);
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private static MethodInfo _miHookLuaCsPatchRetPostfix = typeof(LuaCsHook).GetMethod("HookLuaCsPatchRetPostfix", BindingFlags.NonPublic | BindingFlags.Static);
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private static MethodInfo ResolveMethod(string where, string className, string methodName, string[] parameterNames)
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{
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var classType = LuaUserData.GetType(className);
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if (classType == null)
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{
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GameMain.LuaCs.HandleException(new Exception($"Tried to use {where} with an invalid class name '{className}'."));
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return null;
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}
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MethodInfo methodInfo = null;
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if (parameterNames != null)
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{
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Type[] parameterTypes = parameterNames.Select(x => LuaUserData.GetType(x)).ToArray();
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methodInfo = classType.GetMethod(methodName, DefaultBindingFlags, null, parameterTypes, null);
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}
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else
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{
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methodInfo = classType.GetMethod(methodName, DefaultBindingFlags);
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}
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if (methodInfo == null)
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{
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string parameterNamesStr = parameterNames == null ? "" : string.Join(", ", parameterNames);
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GameMain.LuaCs.HandleException(new Exception($"Method '{methodName}' with parameters '{parameterNamesStr}' not found in class '{className}'"));
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}
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return methodInfo;
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}
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public void HookMethod(string identifier, MethodInfo method, LuaCsPatch patch, HookMethodType hookType = HookMethodType.Before, ACsMod owner = null)
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{
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if (identifier == null || method == null || patch == null)
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{
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GameMain.LuaCs.HandleException(new ArgumentNullException("Identifier, Method and Patch arguments must not be null."), exceptionType: ExceptionType.Both);
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return;
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}
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if (prohibitedHooks.Any(h => method.DeclaringType.FullName.StartsWith(h)))
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{
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GameMain.LuaCs.HandleException(new ArgumentException("Hooks into Modding Environment are prohibited."), exceptionType: ExceptionType.Both);
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return;
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}
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var funcAddr = ((long)method.MethodHandle.GetFunctionPointer());
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var patches = Harmony.GetPatchInfo(method);
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if (hookType == HookMethodType.Before)
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{
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if (method.ReturnType != typeof(void))
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{
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if (patches == null || patches.Prefixes == null || patches.Prefixes.Find(patch => patch.PatchMethod == _miHookLuaCsPatchRetPrefix) == null)
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{
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harmony.Patch(method, prefix: new HarmonyMethod(_miHookLuaCsPatchRetPrefix));
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}
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}
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else
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{
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if (patches == null || patches.Prefixes == null || patches.Prefixes.Find(patch => patch.PatchMethod == _miHookLuaCsPatchPrefix) == null)
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{
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harmony.Patch(method, prefix: new HarmonyMethod(_miHookLuaCsPatchPrefix));
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}
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}
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if (compatHookPrefixMethods.TryGetValue(funcAddr, out HashSet<(string, LuaCsPatch, ACsMod)> methodSet))
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{
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methodSet.RemoveWhere(tuple => tuple.Item1 == identifier);
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methodSet.Add((identifier, patch, owner));
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}
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else if (patch != null)
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{
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compatHookPrefixMethods.Add(funcAddr, new HashSet<(string, LuaCsPatch, ACsMod)>() { (identifier, patch, owner) });
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}
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}
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else if (hookType == HookMethodType.After)
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{
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if (method.ReturnType != typeof(void))
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{
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if (patches == null || patches.Postfixes == null || patches.Postfixes.Find(patch => patch.PatchMethod == _miHookLuaCsPatchRetPostfix) == null)
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{
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harmony.Patch(method, postfix: new HarmonyMethod(_miHookLuaCsPatchRetPostfix));
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}
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}
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else
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{
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if (patches == null || patches.Postfixes == null || patches.Postfixes.Find(patch => patch.PatchMethod == _miHookLuaCsPatchPostfix) == null)
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{
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harmony.Patch(method, postfix: new HarmonyMethod(_miHookLuaCsPatchPostfix));
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}
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}
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if (compatHookPostfixMethods.TryGetValue(funcAddr, out HashSet<(string, LuaCsPatch, ACsMod)> methodSet))
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{
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methodSet.RemoveWhere(tuple => tuple.Item1 == identifier);
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methodSet.Add((identifier, patch, owner));
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}
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else if (patch != null)
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{
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compatHookPostfixMethods.Add(funcAddr, new HashSet<(string, LuaCsPatch, ACsMod)>() { (identifier, patch, owner) });
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}
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}
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}
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protected void HookMethod(string identifier, string className, string methodName, string[] parameterNames, LuaCsPatch patch, HookMethodType hookMethodType = HookMethodType.Before)
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{
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MethodInfo methodInfo = ResolveMethod("HookMethod", className, methodName, parameterNames);
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if (methodInfo == null) return;
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HookMethod(identifier, methodInfo, patch, hookMethodType);
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}
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protected void HookMethod(string identifier, string className, string methodName, LuaCsPatch patch, HookMethodType hookMethodType = HookMethodType.Before) =>
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HookMethod(identifier, className, methodName, null, patch, hookMethodType);
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protected void HookMethod(string className, string methodName, LuaCsPatch patch, HookMethodType hookMethodType = HookMethodType.Before) =>
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HookMethod("", className, methodName, null, patch, hookMethodType);
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protected void HookMethod(string className, string methodName, string[] parameterNames, LuaCsPatch patch, HookMethodType hookMethodType = HookMethodType.Before) =>
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HookMethod("", className, methodName, parameterNames, patch, hookMethodType);
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public void UnhookMethod(string identifier, MethodInfo method, HookMethodType hookType = HookMethodType.Before)
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{
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var funcAddr = ((long)method.MethodHandle.GetFunctionPointer());
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Dictionary<long, HashSet<(string, LuaCsPatch, ACsMod)>> methods;
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if (hookType == HookMethodType.Before) methods = compatHookPrefixMethods;
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else if (hookType == HookMethodType.After) methods = compatHookPostfixMethods;
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else throw null;
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if (methods.ContainsKey(funcAddr)) methods[funcAddr]?.RemoveWhere(t => t.Item1 == identifier);
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}
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protected void UnhookMethod(string identifier, string className, string methodName, string[] parameterNames, HookMethodType hookType = HookMethodType.Before)
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{
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MethodInfo methodInfo = ResolveMethod("UnhookMathod", className, methodName, parameterNames);
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if (methodInfo == null) return;
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UnhookMethod(identifier, methodInfo, hookType);
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}
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}
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} |