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Update resources load

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addAssetPath supports apk and directory
This commit is contained in:
vvb2060 2022-09-20 00:03:14 +08:00 committed by John Wu
parent 68874bf571
commit 52cf72002a
2 changed files with 33 additions and 34 deletions
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21
app/shared/src/main/java/com/topjohnwu/magisk/StubApk.java
View File

@ -3,6 +3,7 @@ package com.topjohnwu.magisk;
import static android.os.Build.VERSION.SDK_INT;
import static android.os.ParcelFileDescriptor.MODE_READ_ONLY;
import android.annotation.TargetApi;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
@ -57,12 +58,24 @@ public class StubApk {
return new File(getDynDir(info), "update.apk");
}
@TargetApi(Build.VERSION_CODES.R)
private static ResourcesLoader getResourcesLoader(File path) throws IOException {
var loader = new ResourcesLoader();
ResourcesProvider provider;
if (path.isDirectory()) {
provider = ResourcesProvider.loadFromDirectory(path.getPath(), null);
} else {
var fd = ParcelFileDescriptor.open(path, MODE_READ_ONLY);
provider = ResourcesProvider.loadFromApk(fd);
}
loader.addProvider(provider);
return loader;
}
public static void addAssetPath(Resources res, String path) {
if (SDK_INT >= Build.VERSION_CODES.R) {
try (var fd = ParcelFileDescriptor.open(new File(path), MODE_READ_ONLY)) {
var loader = new ResourcesLoader();
loader.addProvider(ResourcesProvider.loadFromApk(fd));
res.addLoaders(loader);
try {
res.addLoaders(getResourcesLoader(new File(path)));
} catch (IOException ignored) {}
} else {
AssetManager asset = res.getAssets();

46
stub/src/main/java/com/topjohnwu/magisk/DownloadActivity.java
View File

@ -35,9 +35,6 @@ import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.zip.InflaterInputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import java.util.zip.ZipOutputStream;
import javax.crypto.Cipher;
import javax.crypto.CipherInputStream;
@ -162,47 +159,36 @@ public class DownloadActivity extends Activity {
}
private void decryptResources(OutputStream out) throws Exception {
try (var zip = new ZipOutputStream(out)) {
zip.putNextEntry(new ZipEntry("resources.arsc"));
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);
var is = new InflaterInputStream(new CipherInputStream(
new ByteArrayInputStream(Bytes.res()), cipher));
try (is) {
APKInstall.transfer(is, zip);
}
zip.closeEntry();
zip.putNextEntry(new ZipEntry("AndroidManifest.xml"));
var apk = new ZipFile(getPackageResourcePath());
var xml = apk.getInputStream(apk.getEntry("AndroidManifest.xml"));
try (apk; xml) {
APKInstall.transfer(xml, zip);
}
zip.closeEntry();
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);
var is = new InflaterInputStream(new CipherInputStream(
new ByteArrayInputStream(Bytes.res()), cipher));
try (is; out) {
APKInstall.transfer(is, out);
}
}
private void loadResources() throws Exception {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
var fd = Os.memfd_create("res.apk", 0);
var fd = Os.memfd_create("res", 0);
try {
decryptResources(new FileOutputStream(fd));
Os.lseek(fd, 0, OsConstants.SEEK_SET);
try (var pfd = ParcelFileDescriptor.dup(fd)) {
var loader = new ResourcesLoader();
loader.addProvider(ResourcesProvider.loadFromApk(pfd));
var loader = new ResourcesLoader();
try (var pfd = ParcelFileDescriptor.dup(fd);
var provider = ResourcesProvider.loadFromTable(pfd, null)) {
loader.addProvider(provider);
getResources().addLoaders(loader);
}
} finally {
Os.close(fd);
}
} else {
File apk = new File(getCacheDir(), "res.apk");
decryptResources(new FileOutputStream(apk));
StubApk.addAssetPath(getResources(), apk.getPath());
File dir = new File(getCodeCacheDir(), "res");
decryptResources(new FileOutputStream(new File(dir, "resources.arsc")));
StubApk.addAssetPath(getResources(), dir.getPath());
}
}
}