First push

README.md

@@ -1,3 +1,13 @@
 # Redirect
 
-Universal script for redirecting all HTTP requests to specified domain.
+Universal frida script for old versions of anime games to redirect all HTTP requests to specified domain.
+#### Compatibility
+All anime games are supported, but only version before introduction of `il2cpp_get_api_table`
+- Genshin Impact (< 3.2)
+- Honkai: Star Rail (< 1.6)
+- Zenless Zone Zero (< 0.2.0)
+- Honkai Impact 3rd (< 6.9)
+
+### How to use
+Just put contents of this repository to your game folder.<br>
+You can edit gadget.config to specify the `redirectHost`.

gadget.config

@@ -0,0 +1,9 @@
+{
+	"interaction": {
+		"type": "script",
+		"path": "universal_redirect.js",
+		"parameters": {
+			"redirectHost": "http://127.0.0.1:8888"
+		}
+	}
+}

universal_redirect.js

@@ -0,0 +1,77 @@
+// entry point
+function main(stage, parameters) {
+	if (!parameters.redirectHost) {
+		console.log("redirectHost parameter not specified!\nEdit your gadget.config and specify redirectHost in \"parameters\" section.");
+		return;
+	}
+	
+	const SystemDll = Il2cppApiWrap.GetImageByName("System.dll");
+
+	const SystemUriClass = Il2cppApiWrap.GetClassByName(SystemDll, "System", "Uri");
+	const SystemUriCtor = Il2cppApiWrap.GetClassMethodByName(SystemUriClass, ".ctor", 1);
+
+	console.log("Found System.Uri.ctor(System.String) at " + SystemUriCtor.readPointer());
+
+	Interceptor.attach(SystemUriCtor.readPointer(), {
+		onEnter(args) {
+			var requestUrl = args[1].readCSharpString();
+			if (requestUrl.startsWith("http://") || requestUrl.startsWith("https://")) {
+				var prefix = requestUrl.split('/', 3).join('/');
+				args[1] = Il2cppApiWrap.AllocateString(requestUrl.replace(prefix, parameters.redirectHost));
+				
+				console.log("redirected: " + args[1].readCSharpString());
+			}
+		}
+	});
+	
+	console.log("Attached successfully, will redirect all requests to: " + parameters.redirectHost);
+}
+
+const Il2cppApiWrap = {
+	AllocateString(value) {
+		const pValue = Memory.allocUtf16String(value);
+		
+		return this.CallApiFunction('il2cpp_string_new_utf16', 'pointer', ['pointer', 'int'], [pValue, value.length]);
+	},
+	GetClassMethodByName(il2cppClass, name, argsCount) {
+		const pName = Memory.allocUtf8String(name);
+		
+		return this.CallApiFunction('il2cpp_class_get_method_from_name', 'pointer', ['pointer', 'pointer', 'int'], [il2cppClass, pName, argsCount]);
+	},
+	GetClassByName(il2cppImage, namespace, name) {
+		const pNamespace = Memory.allocUtf8String(namespace);
+		const pName = Memory.allocUtf8String(name);
+		
+		return this.CallApiFunction('il2cpp_class_from_name', 'pointer', ['pointer', 'pointer', 'pointer'], [il2cppImage, pNamespace, pName]);
+	},
+	GetImageByName(name) {
+		const domain = this.CallApiFunction('il2cpp_domain_get', 'pointer', [], []);
+		
+		const sizeOut = Memory.alloc(8);
+		const assemblies = this.CallApiFunction('il2cpp_domain_get_assemblies', 'pointer', ['pointer', 'pointer'], [domain, sizeOut]);
+		
+		const size = sizeOut.readU64();
+		for (var i = 0; i < size; i++) {
+			const assembly = assemblies.add(i * 8).readPointer();
+			const il2cppImage = this.CallApiFunction('il2cpp_assembly_get_image', 'pointer', ['pointer'], [assembly]);
+			
+			const imageName = this.CallApiFunction('il2cpp_image_get_name', 'pointer', ['pointer'], [il2cppImage]);
+			if (imageName.readUtf8String() == name) {
+				return il2cppImage;
+			}
+		}
+		
+		return null;
+	},
+	CallApiFunction(name, rettype, argTypes, args) {
+		const nativeFunction = new NativeFunction(Module.findExportByName(null, name), rettype, argTypes);
+		return nativeFunction.apply(nativeFunction, args);
+	}
+}
+
+NativePointer.prototype.readCSharpString = function() {
+    var length = this.add(16).readInt();
+    return this.add(20).readUtf16String(length);
+}
+
+rpc.exports.init = main;