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Code Issues Packages Projects Releases Wiki Activity

Allow component classname obfuscation

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This commit is contained in:
topjohnwu
2019-10-16 04:38:31 -04:00
parent c7033dd757
commit 43bda2d4a4
22 changed files with 132 additions and 63 deletions
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16
stub/src/main/AndroidManifest.xml
View File

@ -16,8 +16,8 @@
<uses-permission android:name="android.permission.WAKE_LOCK" />
<application
android:name="a.e"
android:appComponentFactory="a.a"
android:name="a.y"
android:appComponentFactory="a.x"
android:allowBackup="true"
android:usesCleartextTraffic="true"
tools:ignore="UnusedAttribute,GoogleAppIndexingWarning" >
@ -25,7 +25,7 @@
<!-- Download Activity -->
<activity
android:name="a.c"
android:name="a.z"
android:configChanges="orientation|screenSize"
android:theme="@style/SplashTheme">
<intent-filter>
@ -37,23 +37,23 @@
<!-- Magisk Manager Components -->
<activity
android:name="a.b"
android:name="a.o"
android:configChanges="orientation|screenSize"
android:exported="true" />
<activity
android:name="a.f"
android:name="a.x"
android:configChanges="keyboardHidden|orientation|screenSize"
android:screenOrientation="nosensor" />
<activity
android:name="a.m"
android:name="a.g"
android:directBootAware="true"
android:excludeFromRecents="true"
android:exported="false" />
<receiver
android:name="a.h"
android:name="a.w"
android:directBootAware="true">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
@ -68,7 +68,7 @@
</receiver>
<service
android:name="a.j"
android:name="a.v"
android:exported="false" />
<meta-data

6
stub/src/main/java/a/w.java Normal file
View File

@ -0,0 +1,6 @@
package a;
import com.topjohnwu.magisk.dummy.DummyReceiver;
public class w extends DummyReceiver {
}

2
stub/src/main/java/a/a.java → stub/src/main/java/a/x.java
View File

@ -2,5 +2,5 @@ package a;
import com.topjohnwu.magisk.DelegateComponentFactory;
public class a extends DelegateComponentFactory {
public class x extends DelegateComponentFactory {
}

2
stub/src/main/java/a/e.java → stub/src/main/java/a/y.java
View File

@ -2,5 +2,5 @@ package a;
import com.topjohnwu.magisk.DelegateApplication;
public class e extends DelegateApplication {
public class y extends DelegateApplication {
}

2
stub/src/main/java/a/c.java → stub/src/main/java/a/z.java
View File

@ -2,5 +2,5 @@ package a;
import com.topjohnwu.magisk.DownloadActivity;
public class c extends DownloadActivity {
public class z extends DownloadActivity {
}

32
stub/src/main/java/com/topjohnwu/magisk/ComponentMap.java Normal file
View File

@ -0,0 +1,32 @@
package com.topjohnwu.magisk;
import java.util.HashMap;
import java.util.Map;
class ComponentMap {
private static Map<String, String> map = new HashMap<>(6);
// This mapping will be sent into the guest app
static Map<String, String> inverseMap;
static {
map.put(a.z.class.getName(), "a.c");
map.put("a.x", "a.f");
map.put("a.o", "a.b");
map.put("a.g", "a.m");
map.put(a.w.class.getName(), "a.h");
map.put("a.v", "a.j");
map.put("a.s", "androidx.work.impl.WorkManagerInitializer");
inverseMap = new HashMap<>(map.size());
for (Map.Entry<String, String> e : map.entrySet()) {
inverseMap.put(e.getValue(), e.getKey());
}
}
static String get(String name) {
String n = map.get(name);
return n != null ? n : name;
}
}

4
stub/src/main/java/com/topjohnwu/magisk/DelegateApplication.java
View File

@ -13,6 +13,7 @@ import com.topjohnwu.magisk.utils.DynamicClassLoader;
import java.io.File;
import java.lang.reflect.Method;
import java.util.Map;
import static com.topjohnwu.magisk.DownloadActivity.TAG;
@ -44,7 +45,8 @@ public class DelegateApplication extends Application {
Object df = cl.loadClass("a.a").newInstance();
// Create the delegate Application
delegate = (Application) cl.loadClass("a.e").newInstance();
delegate = (Application) cl.loadClass("a.e").getConstructor(Map.class)
.newInstance(ComponentMap.inverseMap);
// Call attachBaseContext without ContextImpl to show it is being wrapped
Method m = ContextWrapper.class.getDeclaredMethod("attachBaseContext", Context.class);

20
stub/src/main/java/com/topjohnwu/magisk/DelegateComponentFactory.java
View File

@ -8,12 +8,15 @@ import android.app.Service;
import android.content.BroadcastReceiver;
import android.content.ContentProvider;
import android.content.Intent;
import android.util.Log;
import com.topjohnwu.magisk.dummy.DummyActivity;
import com.topjohnwu.magisk.dummy.DummyProvider;
import com.topjohnwu.magisk.dummy.DummyReceiver;
import com.topjohnwu.magisk.dummy.DummyService;
import static com.topjohnwu.magisk.DownloadActivity.TAG;
@SuppressLint("NewApi")
public class DelegateComponentFactory extends AppComponentFactory {
@ -22,39 +25,45 @@ public class DelegateComponentFactory extends AppComponentFactory {
@Override
public Application instantiateApplication(ClassLoader cl, String className) {
loader = cl;
if (loader == null) loader = cl;
Log.d(TAG, className);
return new DelegateApplication(this);
}
@Override
public Activity instantiateActivity(ClassLoader cl, String className, Intent intent)
throws ClassNotFoundException, IllegalAccessException, InstantiationException {
Log.d(TAG, className);
if (delegate != null)
return delegate.instantiateActivity(loader, className, intent);
return delegate.instantiateActivity(loader, ComponentMap.get(className), intent);
return create(className, DummyActivity.class);
}
@Override
public BroadcastReceiver instantiateReceiver(ClassLoader cl, String className, Intent intent)
throws ClassNotFoundException, IllegalAccessException, InstantiationException {
Log.d(TAG, className);
if (delegate != null)
return delegate.instantiateReceiver(loader, className, intent);
return delegate.instantiateReceiver(loader, ComponentMap.get(className), intent);
return create(className, DummyReceiver.class);
}
@Override
public Service instantiateService(ClassLoader cl, String className, Intent intent)
throws ClassNotFoundException, IllegalAccessException, InstantiationException {
Log.d(TAG, className);
if (delegate != null)
return delegate.instantiateService(loader, className, intent);
return delegate.instantiateService(loader, ComponentMap.get(className), intent);
return create(className, DummyService.class);
}
@Override
public ContentProvider instantiateProvider(ClassLoader cl, String className)
throws ClassNotFoundException, IllegalAccessException, InstantiationException {
Log.d(TAG, className);
if (loader == null) loader = cl;
if (delegate != null)
return delegate.instantiateProvider(loader, className);
return delegate.instantiateProvider(loader, ComponentMap.get(className));
return create(className, DummyProvider.class);
}
@ -63,6 +72,7 @@ public class DelegateComponentFactory extends AppComponentFactory {
*/
private <T> T create(String name, Class<? extends T> dummy)
throws InstantiationException, IllegalAccessException {
Log.d(TAG, "create " + name);
try {
return (T) loader.loadClass(name).newInstance();
} catch (IllegalAccessException | InstantiationException | ClassNotFoundException ignored) {