From 3aa837b62abd490c0dc19261c6e6958acda15189 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=96=B9=E5=9D=97=E5=90=9B?= <fkj@fkj233.cn>
Date: Thu, 12 May 2022 22:57:37 +0800
Subject: [PATCH] Add TrustMeAlready

---
 .../main/java/xfk233/GenshinProxy/MainHook.kt |  1 +
 .../xfk233/GenshinProxy/TrustMeAlready.java   | 77 +++++++++++++++++++
 2 files changed, 78 insertions(+)
 create mode 100644 app/src/main/java/xfk233/GenshinProxy/TrustMeAlready.java

diff --git a/app/src/main/java/xfk233/GenshinProxy/MainHook.kt b/app/src/main/java/xfk233/GenshinProxy/MainHook.kt
index a9474bb..754793e 100644
--- a/app/src/main/java/xfk233/GenshinProxy/MainHook.kt
+++ b/app/src/main/java/xfk233/GenshinProxy/MainHook.kt
@@ -85,6 +85,7 @@ class MainHook : IXposedHookLoadPackage, IXposedHookZygoteInit {
     override fun initZygote(startupParam: IXposedHookZygoteInit.StartupParam) {
         modulePath = startupParam.modulePath
         moduleRes = XModuleResources.createInstance(modulePath, null)
+        TrustMeAlready().initZygote(startupParam)
     }
 
     @SuppressLint("WrongConstant", "ClickableViewAccessibility")
diff --git a/app/src/main/java/xfk233/GenshinProxy/TrustMeAlready.java b/app/src/main/java/xfk233/GenshinProxy/TrustMeAlready.java
new file mode 100644
index 0000000..9b97685
--- /dev/null
+++ b/app/src/main/java/xfk233/GenshinProxy/TrustMeAlready.java
@@ -0,0 +1,77 @@
+package xfk233.GenshinProxy;
+
+import java.lang.reflect.Method;
+import java.lang.reflect.ParameterizedType;
+import java.lang.reflect.Type;
+import java.security.cert.X509Certificate;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Locale;
+
+import de.robv.android.xposed.IXposedHookZygoteInit;
+import de.robv.android.xposed.XC_MethodReplacement;
+import de.robv.android.xposed.XposedBridge;
+
+import static de.robv.android.xposed.XposedHelpers.*;
+
+public class TrustMeAlready implements IXposedHookZygoteInit {
+
+    private static final String SSL_CLASS_NAME = "com.android.org.conscrypt.TrustManagerImpl";
+    private static final String SSL_METHOD_NAME = "checkTrustedRecursive";
+    private static final Class<?> SSL_RETURN_TYPE = List.class;
+    private static final Class<?> SSL_RETURN_PARAM_TYPE = X509Certificate.class;
+
+    @Override
+    public void initZygote(StartupParam startupParam) throws Throwable {
+        XposedBridge.log("TrustMeAlready loading...");
+        int hookedMethods = 0;
+
+        for (Method method : findClass(SSL_CLASS_NAME, null).getDeclaredMethods()) {
+            if (!checkSSLMethod(method)) {
+                continue;
+            }
+
+            List<Object> params = new ArrayList<>();
+            params.addAll(Arrays.asList(method.getParameterTypes()));
+            params.add(new XC_MethodReplacement() {
+                @Override
+                protected Object replaceHookedMethod(MethodHookParam param) throws Throwable {
+                    return new ArrayList<X509Certificate>();
+                }
+            });
+
+            XposedBridge.log("Hooking method:");
+            XposedBridge.log(method.toString());
+            findAndHookMethod(SSL_CLASS_NAME, null, SSL_METHOD_NAME, params.toArray());
+            hookedMethods++;
+        }
+
+        XposedBridge.log(String.format(Locale.ENGLISH, "TrustMeAlready loaded! Hooked %d methods", hookedMethods));
+    }
+
+    private boolean checkSSLMethod(Method method) {
+        if (!method.getName().equals(SSL_METHOD_NAME)) {
+            return false;
+        }
+
+        // check return type
+        if (!SSL_RETURN_TYPE.isAssignableFrom(method.getReturnType())) {
+            return false;
+        }
+
+        // check if parameterized return type
+        Type returnType = method.getGenericReturnType();
+        if (!(returnType instanceof ParameterizedType)) {
+            return false;
+        }
+
+        // check parameter type
+        Type[] args = ((ParameterizedType) returnType).getActualTypeArguments();
+        if (args.length != 1 || !(args[0].equals(SSL_RETURN_PARAM_TYPE))) {
+            return false;
+        }
+
+        return true;
+    }
+}
\ No newline at end of file