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Open source fully obfuscated stub

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topjohnwu
2021-09-02 21:31:33 -07:00
parent a967afc629
commit 9c09ad3b62
67 changed files with 535 additions and 184 deletions
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stub/src/main/java/com/topjohnwu/magisk/DownloadActivity.java
+47 -8
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@@ -1,5 +1,14 @@
package com.topjohnwu.magisk;
import static android.R.string.no;
import static android.R.string.ok;
import static android.R.string.yes;
import static com.topjohnwu.magisk.DelegateApplication.dynLoad;
import static com.topjohnwu.magisk.A.string.dling;
import static com.topjohnwu.magisk.A.string.no_internet_msg;
import static com.topjohnwu.magisk.A.string.relaunch_app;
import static com.topjohnwu.magisk.A.string.upgrade_msg;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
@@ -16,17 +25,22 @@ import com.topjohnwu.magisk.utils.APKInstall;
import org.json.JSONException;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.zip.GZIPInputStream;
import static android.R.string.no;
import static android.R.string.ok;
import static android.R.string.yes;
import static com.topjohnwu.magisk.DelegateApplication.dynLoad;
import static com.topjohnwu.magisk.R.string.dling;
import static com.topjohnwu.magisk.R.string.no_internet_msg;
import static com.topjohnwu.magisk.R.string.relaunch_app;
import static com.topjohnwu.magisk.R.string.upgrade_msg;
import javax.crypto.Cipher;
import javax.crypto.CipherInputStream;
import javax.crypto.SecretKey;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import io.michaelrocks.paranoid.Obfuscate;
@Obfuscate
public class DownloadActivity extends Activity {
private static final String APP_NAME = "Magisk";
@@ -41,6 +55,9 @@ public class DownloadActivity extends Activity {
super.onCreate(savedInstanceState);
themed = new ContextThemeWrapper(this, android.R.style.Theme_DeviceDefault);
// Inject resources
loadResources();
if (Networking.checkNetworkStatus(this)) {
if (apkLink == null) {
fetchCanary();
@@ -111,4 +128,26 @@ public class DownloadActivity extends Activity {
});
}
private void loadResources() {
File apk = new File(getCacheDir(), "res.apk");
try {
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
SecretKey key = new SecretKeySpec(Bytes.key(), "AES");
IvParameterSpec iv = new IvParameterSpec(Bytes.iv());
cipher.init(Cipher.DECRYPT_MODE, key, iv);
InputStream is = new CipherInputStream(new ByteArrayInputStream(Bytes.res()), cipher);
try (InputStream gzip = new GZIPInputStream(is);
OutputStream out = new FileOutputStream(apk)) {
byte[] buf = new byte[4096];
for (int read; (read = gzip.read(buf)) >= 0;) {
out.write(buf, 0, read);
}
}
DynAPK.addAssetPath(getResources().getAssets(), apk.getPath());
} catch (Exception e) {
// Should not happen
e.printStackTrace();
}
}
}