first commit

Utils/ScriptJson.cpp

@@ -0,0 +1,126 @@
+// https://github.com/thexeondev/GracefulDumper/blob/master/idapy-gen/src/lib.rs
+
+#include "pch.h"
+#include "scriptjson.h"
+#include "Il2CppApi.h"
+#include <sstream>
+#include <vector>
+
+using namespace std;
+
+void ScriptJsonGenerator::WriteEscapedString(stringstream& ss, const string& value) {
+    for (char c : value) {
+        switch (c) {
+        case '"':  ss << "\\\""; break;
+        case '\\': ss << "\\\\"; break;
+        case '\n': ss << "\\n";  break;
+        case '\r': ss << "\\r";  break;
+        case '\t': ss << "\\t";  break;
+        default:   ss << c;      break;
+        }
+    }
+}
+
+
+
+string ScriptJsonGenerator::GenerateJson() {
+    stringstream ss;
+    ss << "{";
+
+    // ScriptString (empty array)
+    ss << "\"ScriptString\":[],";
+
+    // ScriptMetadata
+    ss << "\"ScriptMetadata\":";
+    WriteTypeMetadata(ss);
+    ss << ",";
+
+    // ScriptMethod
+    ss << "\"ScriptMethod\":";
+    WriteMethods(ss);
+    ss << ",";
+
+    // ScriptMetadataMethod
+    ss << "\"ScriptMetadataMethod\":";
+    WriteMethodRefs(ss);
+
+    ss << "}";
+    return ss.str();
+}
+
+
+void ScriptJsonGenerator::WriteMethods(stringstream& ss) {
+    vector<string> entries;
+    ss << "[";
+
+    for (int index = 0; index <= 56983; ++index) {
+        if (Il2CppClass* klass = Il2CppApi::GetTypeInfoFromTypeDefinitionIndex(index)) {
+            void* methodIter = nullptr;
+            while (auto method = Il2CppApi::ClassGetMethods(klass, &methodIter)) {
+                stringstream entry;
+                entry << "{"
+                    << "\"Address\":" << ((*(uint64_t*)((char*)method + 8)) - il2CppOffsets::gIBaseAddress) << ","
+                    << "\"Name\":\"" << Il2CppApi::ClassGetName(klass) << "$$" << Il2CppApi::MethodGetName(method) << "\","
+                    << "\"Signature\":\"\","
+                    << "\"TypeSignature\":\"\""
+                    << "}";
+                entries.push_back(entry.str());
+            }
+        }
+    }
+
+    for (size_t i = 0; i < entries.size(); ++i) {
+        if (i > 0) ss << ",";
+        ss << entries[i];
+    }
+    ss << "]";
+}
+
+void ScriptJsonGenerator::WriteTypeMetadata(stringstream& ss) {
+    vector<string> entries;
+    ss << "[";
+
+    for (int index = 0; index <= 56983; ++index) {
+        if (Il2CppClass* klass = Il2CppApi::GetTypeInfoFromTypeDefinitionIndex(index)) {
+            stringstream entry;
+            entry << "{"
+                << "\"Address\":" << (reinterpret_cast<uintptr_t>(klass) - il2CppOffsets::gIBaseAddress) << ","
+                << "\"Name\":\"" << Il2CppApi::ClassGetName(klass) << "_TypeInfo\","
+                << "\"Signature\":\"" << Il2CppApi::ClassGetName(klass) << "_c*\""
+                << "}";
+            entries.push_back(entry.str());
+        }
+    }
+
+    for (size_t i = 0; i < entries.size(); ++i) {
+        if (i > 0) ss << ",";
+        ss << entries[i];
+    }
+    ss << "]";
+}
+
+void ScriptJsonGenerator::WriteMethodRefs(stringstream& ss) {
+    vector<string> entries;
+    ss << "[";
+
+    for (int index = 0; index <= 56983; ++index) {
+        if (Il2CppClass* klass = Il2CppApi::GetTypeInfoFromTypeDefinitionIndex(index)) {
+            void* methodIter = nullptr;
+            while (auto method = Il2CppApi::ClassGetMethods(klass, &methodIter)) {
+                stringstream entry;
+                entry << "{"
+                    << "\"Address\":" << (reinterpret_cast<uintptr_t>(method) - il2CppOffsets::gIBaseAddress) << ","
+                    << "\"Name\":\"" << Il2CppApi::ClassGetName(klass) << "_" << Il2CppApi::MethodGetName(method) << "\","
+                    << "\"MethodAddress\":" << (*(uint64_t*)((char*)method + 8) - il2CppOffsets::gIBaseAddress)
+                    << "}";
+                entries.push_back(entry.str());
+            }
+        }
+    }
+
+    for (size_t i = 0; i < entries.size(); ++i) {
+        if (i > 0) ss << ",";
+        ss << entries[i];
+    }
+    ss << "]";
+}