1 | using System; |
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2 | using System.Collections.Generic; |
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3 | using System.Reflection; |
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4 | using Mono.Cecil; |
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5 | using Mono.Cecil.Cil; |
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6 | |
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7 | namespace dtdfixer |
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8 | { |
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9 | class MainClass |
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10 | { |
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11 | public static void Main (string[] args) |
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12 | { |
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13 | ModuleDefinition module = ModuleDefinition.ReadModule ("Assembly-CSharp.dll"); |
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14 | |
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15 | TypeDefinition type = module.GetType ("GameManager"); |
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16 | if (isPatched (type)) { |
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17 | Console.WriteLine ("Assembly already patched"); |
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18 | return; |
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19 | } |
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20 | markTypePatched (module, type); |
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21 | |
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22 | mappingPatch (module); |
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23 | consoleOutputPatch (module); |
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24 | telnetPatch (module); |
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25 | connectLogPatch (module); |
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26 | publicCommandPermissionsPatch (module); |
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27 | playerDataPatch (module); |
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28 | |
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29 | module.Write ("Assembly-CSharp.patched.dll"); |
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30 | Console.WriteLine ("Done"); |
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31 | |
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32 | } |
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33 | |
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34 | private static void mappingPatch (ModuleDefinition module) |
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35 | { |
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36 | TypeDefinition type = module.GetType ("Chunk"); |
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37 | addHook (type, "CalcMapColors", true, 0, true, typeof(AllocsFixes.MapRendering.MapRendering).GetMethod ("RenderSingleChunk")); |
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38 | } |
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39 | |
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40 | private static void consoleOutputPatch (ModuleDefinition module) |
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41 | { |
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42 | TypeDefinition type = module.GetType ("ConsoleSdtd"); |
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43 | replaceMethod (type, "ExecuteCmdFromClient", true, 3, typeof(AllocsFixes.NetConnections.ConsoleOutputSeparator).GetMethod ("C_ExecuteCmdFromClient")); |
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44 | addHook (type, "Run", true, 0, true, typeof(AllocsFixes.NetConnections.ConsoleOutputSeparator).GetMethod ("C_Run")); |
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45 | replaceMethod (type, "SendResult", true, 1, typeof(AllocsFixes.NetConnections.ConsoleOutputSeparator).GetMethod ("C_SendResult")); |
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46 | } |
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47 | |
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48 | private static void playerDataPatch (ModuleDefinition module) |
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49 | { |
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50 | TypeDefinition type = module.GetType ("GameManager"); |
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51 | addHook (type, "SavePlayerData", true, 2, true, typeof(AllocsFixes.PlayerDataStuff).GetMethod ("GM_SavePlayerData")); |
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52 | addHook (type, "Awake", true, 0, true, typeof(AllocsFixes.CommandExtensions).GetMethod ("InitCommandExtensions")); |
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53 | } |
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54 | |
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55 | private static void publicCommandPermissionsPatch (ModuleDefinition module) |
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56 | { |
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57 | TypeDefinition type = module.GetType ("AdminTools"); |
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58 | replaceMethod (type, "GetAllowedCommandsList", true, 1, typeof(AllocsFixes.AdminToolsStuff).GetMethod ("GetAllowedCommandsList")); |
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59 | } |
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60 | |
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61 | private static void connectLogPatch (ModuleDefinition module) |
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62 | { |
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63 | TypeDefinition type = module.GetType ("GameManager"); |
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64 | addHook (type, "RequestToSpawnPlayer", true, 5, true, typeof(AllocsFixes.AllocsLogFunctions).GetMethod ("RequestToSpawnPlayer")); |
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65 | } |
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66 | |
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67 | private static void telnetPatch (ModuleDefinition module) |
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68 | { |
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69 | TypeDefinition type = module.GetType ("NetTelnetServer"); |
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70 | replaceMethod (type, ".ctor", false, 1, typeof(AllocsFixes.NetConnections.NetTelnetServer).GetMethod ("init")); |
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71 | replaceMethod (type, "Disconnect", false, 0, typeof(AllocsFixes.NetConnections.NetTelnetServer).GetMethod ("Disconnect")); |
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72 | replaceMethod (type, "SetConsole", false, 1, typeof(AllocsFixes.NetConnections.NetTelnetServer).GetMethod ("SetConsole")); |
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73 | replaceMethod (type, "WriteToClient", false, 1, typeof(AllocsFixes.NetConnections.NetTelnetServer).GetMethod ("WriteToClient")); |
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74 | } |
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75 | |
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76 | private static void markTypePatched (ModuleDefinition module, TypeDefinition type) |
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77 | { |
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78 | type.Fields.Add (new FieldDefinition ("AllocsPatch", Mono.Cecil.FieldAttributes.Private | Mono.Cecil.FieldAttributes.SpecialName, module.Import (typeof(int)))); |
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79 | } |
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80 | |
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81 | private static void addHook (TypeDefinition type, string methodName, bool addThisRef, int opCount, bool atEnd, MethodBase targetMethod) |
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82 | { |
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83 | foreach (MethodDefinition method in type.Methods) { |
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84 | if (method.Name.Equals (methodName)) { |
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85 | var il = method.Body.GetILProcessor (); |
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86 | var call = il.Create (OpCodes.Call, method.Module.Import (targetMethod)); |
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87 | if (atEnd) { |
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88 | int insBefore = method.Body.Instructions.Count; |
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89 | if (addThisRef) |
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90 | il.Append (il.Create (OpCodes.Ldarg, 0)); |
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91 | for (int op = 0; op < opCount; op++) { |
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92 | il.Append (il.Create (OpCodes.Ldarg, op + 1)); |
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93 | } |
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94 | il.Append (call); |
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95 | il.Remove (method.Body.Instructions [insBefore - 1]); |
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96 | il.Append (il.Create (OpCodes.Ret)); |
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97 | } else { |
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98 | var i = 0; |
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99 | if (addThisRef) |
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100 | il.InsertBefore (method.Body.Instructions [i++], il.Create (OpCodes.Ldarg, 0)); |
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101 | for (int op = 0; op < opCount; op++) { |
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102 | il.InsertBefore (method.Body.Instructions [i++], il.Create (OpCodes.Ldarg, op + 1)); |
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103 | } |
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104 | il.InsertBefore (method.Body.Instructions [i++], call); |
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105 | } |
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106 | return; |
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107 | } |
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108 | } |
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109 | Console.WriteLine ("ERROR: Did not find " + type.Name + "." + methodName + "()"); |
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110 | } |
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111 | |
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112 | private static void replaceMethod (TypeDefinition type, string methodName, bool addThisRef, int opCount, MethodBase targetMethod) |
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113 | { |
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114 | foreach (MethodDefinition method in type.Methods) { |
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115 | if (method.Name.Equals (methodName)) { |
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116 | var il = method.Body.GetILProcessor (); |
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117 | var call = il.Create (OpCodes.Call, method.Module.Import (targetMethod)); |
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118 | var i = 0; |
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119 | if (addThisRef) |
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120 | il.InsertBefore (method.Body.Instructions [i++], il.Create (OpCodes.Ldarg, 0)); |
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121 | for (int op = 0; op < opCount; op++) { |
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122 | il.InsertBefore (method.Body.Instructions [i++], il.Create (OpCodes.Ldarg, op + 1)); |
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123 | } |
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124 | il.InsertBefore (method.Body.Instructions [i++], call); |
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125 | il.InsertBefore (method.Body.Instructions [i++], il.Create (OpCodes.Ret)); |
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126 | return; |
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127 | } |
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128 | } |
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129 | Console.WriteLine ("ERROR: Did not find " + type.Name + "." + methodName + "()"); |
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130 | } |
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131 | |
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132 | private static bool isPatched (TypeDefinition type) |
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133 | { |
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134 | foreach (FieldDefinition fd in type.Fields) { |
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135 | if (fd.Name.Equals ("AllocsPatch")) { |
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136 | return true; |
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137 | } |
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138 | } |
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139 | return false; |
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140 | } |
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141 | } |
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142 | } |
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