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add test apk for dyn loading

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This commit is contained in:
Jean-Marie 'Histausse' Mineau 2025-03-24 16:33:26 +01:00
parent ce261b75f9
commit eedcff978d
Signed by: histausse
GPG key ID: B66AEEDA9B645AD2
8 changed files with 420 additions and 0 deletions
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7
test_apks/dynloading/java/a/com/example/theseus/dynloading/AMain.java Normal file
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package com.example.theseus.dynloading;
public class AMain {
public static String getColliderId() {
return Collider.getColliderId();
}
}

7
test_apks/dynloading/java/a/com/example/theseus/dynloading/Collider.java Normal file
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package com.example.theseus.dynloading;
public class Collider {
public static String getColliderId() {
return "A";
}
}

36
test_apks/dynloading/java/classes/com/example/theseus/Utils.java Normal file
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package com.example.theseus;
import android.app.Activity;
import android.app.AlertDialog;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.IOException;
public class Utils {
public static String source() {
return "Secret";
}
public static String source(String tag) {
return "[" + tag + "] Secret";
}
public static void popup(Activity ac, String title, String msg) {
(new AlertDialog.Builder(ac))
.setMessage(msg)
.setTitle(title)
.create()
.show();
}
public static void sink(Activity ac, String data) {
popup(ac, "Data leak:", data);
}
public static void copy(InputStream in, OutputStream out) throws IOException {
byte[] buffer = new byte[1024];
int read;
while((read = in.read(buffer)) != -1){
out.write(buffer, 0, read);
}
}
}

7
test_apks/dynloading/java/classes/com/example/theseus/dynloading/Collider.java Normal file
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package com.example.theseus.dynloading;
public class Collider {
public static String getColliderId() {
return "MainAPK";
}
}

271
test_apks/dynloading/java/classes/com/example/theseus/dynloading/MainActivity.java Normal file
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package com.example.theseus.dynloading;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.widget.RelativeLayout;
import android.widget.ScrollView;
import android.widget.LinearLayout;
import android.view.ViewGroup;
import android.view.View;
import android.widget.Button;
import android.content.res.ColorStateList;
import java.lang.ClassLoader;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Constructor;
import java.lang.ClassNotFoundException;
import android.content.res.AssetManager;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.IOException;
import java.io.File;
import java.io.FileOutputStream;
import java.lang.reflect.InvocationTargetException;
import android.content.Context;
import dalvik.system.PathClassLoader;
import java.lang.reflect.Method;
import com.example.theseus.Utils;
import java.util.Arrays;
public class MainActivity extends Activity {
public void setup() {
AssetManager assetManager = getAssets();
InputStream in = null;
OutputStream out = null;
File outFile = null;
try {
in = assetManager.open("a.dex");
outFile = new File(getCacheDir(), "a.dex_"); // .dex_ because android does not like people writing .dex
out = new FileOutputStream(outFile);
Utils.copy(in, out);
outFile.renameTo(new File(getCacheDir(), "a.dex")); // security?
} catch (IOException e) {}
try {
in.close();
} catch (IOException e) {}
try {
out.close();
} catch (IOException e) {}
}
public String getdexfile(String name) {
File dexfile = new File(getCacheDir(), name);
dexfile.setReadOnly();
Log.e("DEBUG", dexfile.getPath());
return dexfile.getPath();
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setup();
ColorStateList buttonColor = ColorStateList.valueOf(0xff808080);
RelativeLayout relLayout = new RelativeLayout(this);
relLayout.generateViewId();
ScrollView scrollView = new ScrollView(this);
scrollView.generateViewId();
RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.WRAP_CONTENT
);
lp.addRule(RelativeLayout.CENTER_IN_PARENT);
LinearLayout linLayout = new LinearLayout(this);
linLayout.generateViewId();
linLayout.setLayoutParams(lp);
linLayout.setOrientation(LinearLayout.VERTICAL);
Button b1 = new Button(this);
b1.generateViewId();
linLayout.addView(b1);
Button b2 = new Button(this);
b2.generateViewId();
linLayout.addView(b2);
Button b3 = new Button(this);
b3.generateViewId();
linLayout.addView(b3);
Button b4 = new Button(this);
b4.generateViewId();
linLayout.addView(b4);
scrollView.addView(linLayout);
relLayout.addView(scrollView);
setContentView(relLayout);
Activity ac = this;
b1.setText("Direct With Parent");
b1.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
v.setBackgroundTintList(buttonColor);
try {
directWithParent();
} catch(Exception e) {
Log.e("THESEUS", "Error: ", e);
}
}
});
b2.setText("Direct Without Parent");
b2.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
v.setBackgroundTintList(buttonColor);
try {
directWithoutParent();
} catch(Exception e) {
Log.e("THESEUS", "Error: ", e);
}
}
});
b3.setText("Indirect With Parent");
b3.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
v.setBackgroundTintList(buttonColor);
try {
indirectWithParent();
} catch(Exception e) {
Log.e("THESEUS", "Error: ", e);
}
}
});
b4.setText("Indirect Without Parent");
b4.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
v.setBackgroundTintList(buttonColor);
try {
indirectWithoutParent();
} catch(Exception e) {
Log.e("THESEUS", "Error: ", e);
}
}
});
}
public void directWithParent() {
try {
PathClassLoader cl = new PathClassLoader(getdexfile("a.dex"), MainActivity.class.getClassLoader());
Class clz = cl.loadClass("com.example.theseus.dynloading.Collider");
Method mth = clz.getMethod("getColliderId");
String id = (String)mth.invoke(null);
//Utils.popup(this, "Result", id);
String expectedId = "MainAPK";
if (id.equals(expectedId)) {
Utils.popup(this, "OK", "The right class was loaded");
} else {
Utils.popup(this, "BAD", "The wrong class was loaded: id = " + id + " expected id = " + expectedId);
}
} catch (ClassNotFoundException e) {
Log.e("DEBUG", "ERROR: ", e);
}
catch (NoSuchMethodException e) {
Log.e("DEBUG", "ERROR: ", e);
}
catch (IllegalAccessException e) {
Log.e("DEBUG", "ERROR: ", e);
}
catch (InvocationTargetException e) {
Log.e("DEBUG", "ERROR: ", e);
}
}
public void directWithoutParent() {
try {
PathClassLoader cl = new PathClassLoader(getdexfile("a.dex"), null);
Class clz = cl.loadClass("com.example.theseus.dynloading.Collider");
Method mth = clz.getMethod("getColliderId");
String id = (String)mth.invoke(null);
//Utils.popup(this, "Result", id);
String expectedId = "A";
if (id.equals(expectedId)) {
Utils.popup(this, "OK", "The right class was loaded");
} else {
Utils.popup(this, "BAD", "The wrong class was loaded: id = " + id + " expected id = " + expectedId);
}
} catch (ClassNotFoundException e) {
Log.e("DEBUG", "ERROR: ", e);
}
catch (NoSuchMethodException e) {
Log.e("DEBUG", "ERROR: ", e);
}
catch (IllegalAccessException e) {
Log.e("DEBUG", "ERROR: ", e);
}
catch (InvocationTargetException e) {
Log.e("DEBUG", "ERROR: ", e);
}
}
public void indirectWithParent() {
try {
PathClassLoader cl = new PathClassLoader(getdexfile("a.dex"), MainActivity.class.getClassLoader());
Class clz = cl.loadClass("com.example.theseus.dynloading.AMain");
Method mth = clz.getMethod("getColliderId");
String id = (String)mth.invoke(null);
//Utils.popup(this, "Result", id);
String expectedId = "MainAPK";
if (id.equals(expectedId)) {
Utils.popup(this, "OK", "The right class was loaded");
} else {
Utils.popup(this, "BAD", "The wrong class was loaded: id = " + id + " expected id = " + expectedId);
}
} catch (ClassNotFoundException e) {
Log.e("DEBUG", "ERROR: ", e);
}
catch (NoSuchMethodException e) {
Log.e("DEBUG", "ERROR: ", e);
}
catch (IllegalAccessException e) {
Log.e("DEBUG", "ERROR: ", e);
}
catch (InvocationTargetException e) {
Log.e("DEBUG", "ERROR: ", e);
}
}
public void indirectWithoutParent() {
try {
PathClassLoader cl = new PathClassLoader(getdexfile("a.dex"), null);
Class clz = cl.loadClass("com.example.theseus.dynloading.AMain");
Method mth = clz.getMethod("getColliderId");
String id = (String)mth.invoke(null);
//Utils.popup(this, "Result", id);
String expectedId = "A";
if (id.equals(expectedId)) {
Utils.popup(this, "OK", "The right class was loaded");
} else {
Utils.popup(this, "BAD", "The wrong class was loaded: id = " + id + " expected id = " + expectedId);
}
} catch (ClassNotFoundException e) {
Log.e("DEBUG", "ERROR: ", e);
}
catch (NoSuchMethodException e) {
Log.e("DEBUG", "ERROR: ", e);
}
catch (IllegalAccessException e) {
Log.e("DEBUG", "ERROR: ", e);
}
catch (InvocationTargetException e) {
Log.e("DEBUG", "ERROR: ", e);
}
}
}