add test apk for dyn loading

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

3
test_apks/dynloading/.gitignore vendored Normal file
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build
ToyKey.keystore
java/classes/com/example/theseus/dynloading/R.java

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<?xml version="1.0" encoding="utf-8"?>
<manifest
xmlns:android="http://schemas.android.com/apk/res/android"
android:compileSdkVersion="34"
package="com.example.theseus.dynloading">
<uses-sdk android:minSdkVersion="28" android:targetSdkVersion="34"/>
<!--uses-permission android:name="android.permission.WRITE_CONTACTS"/-->
<application
android:supportsRtl="true"
android:label="DynLoading">
<activity android:name=".MainActivity"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>

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VERSION=34.0.0
SDK_TOOLS=$(HOME)/Android/Sdk
JAVA_PATH=/usr/lib/jvm/java-17-openjdk/bin
JAVAC=/usr/lib/jvm/java-17-openjdk/bin/javac
JAR=/usr/lib/jvm/java-17-openjdk/bin/jar
PYTHON=python3
APP=test_reflection
PACKAGE=com.example.theseus.dynloading
MAIN_ACTIVITY=MainActivity
JAVAC_ARGS =
D8_ARGS =
VERSION_B=$(basename $(basename $(VERSION)))
pass=ahahah
export PATH := $(JAVA_PATH):$(PATH)
all: $(shell mkdir -p build)
all: clean build/$(APP).apk
signature_v1: clean build/$(APP).v1.apk
debug: JAVAC_ARGS += -g
debug: D8_ARGS += --debug
debug: all
test: all
adb install build/$(APP).apk
adb shell am start -n $(PACKAGE)/.$(MAIN_ACTIVITY)
build/%.v1signed.apk: ./build/%.unsigned.apk ./ToyKey.keystore
jarsigner -verbose -keystore ./ToyKey.keystore -storepass $(pass) -keypass $(pass) -signedjar $@ $< SignKey
build/%.v1.apk: ./build/%.v1signed.apk
$(SDK_TOOLS)/build-tools/$(VERSION)/zipalign -v -f 4 $< $@
# TODO: fix dep somehow? cannot find a way to use % or $* in (shell ..)
build/%/classes: $(shell find java/ -type f -regex ".*\.java" )
mkdir -p ./build/$*/classes
$(JAVAC) $(JAVAC_ARGS) -d ./build/$*/classes -classpath build/deps.jar:$(SDK_TOOLS)/platforms/android-$(VERSION_B)/android.jar $$(find java/$*/ -type f -regex ".*\.java")
build/%/classes.dex: build/%/classes
mkdir -p ./build/$*
$(SDK_TOOLS)/build-tools/$(VERSION)/d8 $(D8_ARGS) --classpath $(SDK_TOOLS)/platforms/android-$(VERSION_B)/android.jar $(shell find build/$*/classes -type f -regex ".*\.class" -printf "'%p'\n") --output ./build/$*/
build/%.unsigned.apk: build/classes/classes.dex build/a/classes.dex
mkdir -p ./build/$*_files ./build/$*_files/assets
mv ./build/classes/classes.dex ./build/$*_files/classes.dex
mv build/a/classes.dex ./build/$*_files/assets/a.dex
$(SDK_TOOLS)/build-tools/$(VERSION)/aapt package -v -f -M ./AndroidManifest.xml -I $(SDK_TOOLS)/platforms/android-$(VERSION_B)/android.jar -F $@ ./build/$*_files
build/%.v2aligned.apk: ./build/%.unsigned.apk ./ToyKey.keystore
$(SDK_TOOLS)/build-tools/$(VERSION)/zipalign -v -f 4 $< $@
build/%.apk: ./build/%.v2aligned.apk
$(SDK_TOOLS)/build-tools/$(VERSION)/apksigner sign -ks ./ToyKey.keystore --v2-signing-enabled true --in $< --out $@ --ks-pass pass:$(pass)
ToyKey.keystore :
keytool -genkeypair -validity 1000 -dname "CN=SomeKey,O=SomeOne,C=FR" -keystore $@ -storepass $(pass) -keypass $(pass) -alias SignKey -keyalg RSA -v
clean:
$(RM) -r build/*
clean_all: clean
$(RM) ToyKey.keystore

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package com.example.theseus.dynloading;
public class AMain {
public static String getColliderId() {
return Collider.getColliderId();
}
}

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package com.example.theseus.dynloading;
public class Collider {
public static String getColliderId() {
return "A";
}
}

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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);
}
}
}

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package com.example.theseus.dynloading;
public class Collider {
public static String getColliderId() {
return "MainAPK";
}
}

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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);
}
}
}