/
ApkInstaller.java
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/
ApkInstaller.java
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package com.jeppeman.globallydynamic.globalsplitinstall;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.content.IntentSender;
import android.content.pm.PackageInstaller;
import android.os.Build;
import android.os.Bundle;
import android.os.Parcelable;
import android.os.ResultReceiver;
import com.jeppeman.globallydynamic.selfhosted.R;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.LinkedList;
import java.util.List;
import java.util.Locale;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.annotation.RequiresApi;
import androidx.annotation.VisibleForTesting;
@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
class ApkInstallerFactory {
static ApkInstaller create(
@NonNull Context context,
@NonNull Logger logger,
@NonNull Executor executor,
@NonNull ApplicationPatcher applicationPatcher,
@NonNull ApkInstaller.StatusListener statusListener) {
ApkInstaller apkInstaller = new ApkInstallerImpl(
context,
applicationPatcher,
statusListener,
logger,
executor
);
ApkInstallerRegistry.registerInstaller(apkInstaller);
return apkInstaller;
}
}
class ApkInstallerRegistry {
private static List<ApkInstaller> apkInstallers = new LinkedList<ApkInstaller>();
static void registerInstaller(@NonNull ApkInstaller apkInstaller) {
apkInstallers.add(apkInstaller);
}
static void unregisterInstaller(@NonNull ApkInstaller apkInstaller) {
apkInstallers.remove(apkInstaller);
}
@Nullable
static ApkInstaller findInstaller(int sessionId) {
for (ApkInstaller apkInstaller : apkInstallers) {
if (apkInstaller.getSessionId() == sessionId) {
return apkInstaller;
}
}
return null;
}
}
interface ApkInstaller extends Parcelable {
@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
void install(List<File> apks);
int getSessionId();
void receiveInstallationResult(@NonNull Intent intent);
abstract class Status {
final String title;
final String installMessage;
Status(String title, String installMessage) {
this.title = title;
this.installMessage = installMessage;
}
static class Installing extends Status {
Installing() {
super("Installing", "");
}
}
static class Installed extends Status {
Installed(String installMessage) {
super("Success", installMessage);
}
}
static class Failed extends Status {
@GlobalSplitInstallErrorCode
final int code;
final Exception exception;
Failed(String installMessage, @GlobalSplitInstallErrorCode int code) {
this(installMessage, code, null);
}
Failed(String installMessage, @GlobalSplitInstallErrorCode int code, Exception exception) {
super("Failure", installMessage);
this.code = code;
this.exception = exception != null
? exception
: new Exception(installMessage);
}
}
static class Pending extends Status {
Pending(String installMessage) {
super("Pending", installMessage);
}
}
static class RequiresUserPermission extends Status {
RequiresUserPermission() {
super("RequiresUserPermission", "");
}
}
static class Canceled extends Status {
Canceled() {
super("Canceled", "");
}
}
@NonNull
@Override
public String toString() {
return String.format(
Locale.ENGLISH,
"%s(title=%s, installMessage=%s)",
getClass().getSimpleName(),
title,
installMessage
);
}
}
interface StatusListener {
void onUpdate(Status status);
}
}
@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
class ApkInstallerImpl extends ResultReceiver implements ApkInstaller {
private final Context context;
private final ApplicationPatcher applicationPatcher;
private final StatusListener statusListener;
private final Logger logger;
private final Executor executor;
private List<File> apks;
@VisibleForTesting
int sessionId = -1;
ApkInstallerImpl(
@NonNull Context context,
@NonNull ApplicationPatcher applicationPatcher,
@NonNull StatusListener statusListener,
@NonNull Logger logger,
@NonNull Executor executor) {
super(executor.getForegroundHandler());
this.context = context;
this.applicationPatcher = applicationPatcher;
this.statusListener = statusListener;
this.logger = logger;
this.executor = executor;
}
private void updateStatus(Status status) {
if (status instanceof Status.Failed
|| status instanceof Status.Canceled
|| status instanceof Status.Installed) {
ApkInstallerRegistry.unregisterInstaller(this);
}
if (status instanceof Status.Canceled
|| status instanceof Status.Failed) {
if (apks != null) {
for (File apk : apks) {
apk.delete();
}
}
}
statusListener.onUpdate(status);
}
private void setDontKillApp(PackageInstaller.SessionParams sessionParams) {
try {
ReflectionUtils.invokeMethod(sessionParams, "setDontKillApp", true);
} catch (Exception exception) {
updateStatus(new Status.Failed(
"Failed to install", GlobalSplitInstallErrorCode.INTERNAL_ERROR, exception));
}
}
private boolean isMarshmallowOrBelow() {
return Build.VERSION.SDK_INT <= Build.VERSION_CODES.M;
}
private boolean requiresRestart() {
return isMarshmallowOrBelow();
}
private String restartMessage() {
return context.getString(R.string.restart_message_marshmallow);
}
@VisibleForTesting
PackageInstaller.Session createSession(@NonNull PackageInstaller.SessionParams sessionParams) throws IOException {
PackageInstaller packageInstaller = context.getPackageManager().getPackageInstaller();
sessionId = packageInstaller.createSession(sessionParams);
return context.getPackageManager().getPackageInstaller().openSession(sessionId);
}
@VisibleForTesting
IntentSender getIntentSenderForSession(@NonNull Intent intent) {
int flags = PendingIntent.FLAG_UPDATE_CURRENT;
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.S) {
flags |= PendingIntent.FLAG_MUTABLE;
}
return PendingIntent.getBroadcast(
context,
sessionId,
intent,
flags
).getIntentSender();
}
@VisibleForTesting
void doInstall(final List<File> apks) throws Exception {
PackageInstaller.SessionParams sessionParams = new PackageInstaller.SessionParams(
PackageInstaller.SessionParams.MODE_INHERIT_EXISTING
);
long totalSize = 0;
for (File apk : apks) {
totalSize += apk.length();
}
setDontKillApp(sessionParams);
sessionParams.setAppPackageName(context.getPackageName());
sessionParams.setSize(totalSize);
PackageInstaller.Session session = createSession(sessionParams);
byte[] buffer = new byte[65536];
for (File file : apks) {
long fileSize = file.length();
OutputStream outStream = session.openWrite(file.getName(), 0, fileSize);
FileInputStream fileInputStream = new FileInputStream(file);
int bytesRead;
while ((bytesRead = fileInputStream.read(buffer)) != -1) {
outStream.write(buffer, 0, bytesRead);
}
session.fsync(outStream);
outStream.close();
}
Intent nestedIntent = new Intent().putExtra(
PackageInstallerResultReceiver.EXTRA_RESULT_RECEIVER,
ApkInstallerImpl.this
).putExtra(
PackageInstallerResultReceiver.EXTRA_NEEDS_RESTART,
requiresRestart()
).putExtra(
PackageInstallerResultReceiver.EXTRA_RESTART_MESSAGE,
restartMessage()
);
Intent intent = new Intent(context, PackageInstallerResultReceiver.class);
intent.putExtra(
PackageInstallerResultReceiver.EXTRA_NESTED_INTENT,
nestedIntent
);
session.commit(getIntentSenderForSession(intent));
session.close();
}
@VisibleForTesting
void onInstallError(Exception exception) {
updateStatus(new Status.Failed(
"Failed to install", GlobalSplitInstallErrorCode.INTERNAL_ERROR, exception));
}
private void cancel() {
try {
context.getPackageManager()
.getPackageInstaller()
.abandonSession(sessionId);
} catch (Exception exception) {
logger.i("Failed to abandon session, was probably already abandoned by the system");
}
}
@Override
public int getSessionId() {
return sessionId;
}
@Override
protected void onReceiveResult(int resultCode, Bundle resultData) {
Intent intent = resultData.getParcelable(Intent.EXTRA_INTENT);
boolean canceled = resultData.getBoolean(InstallService.ACTION_CANCELED, false);
if (intent != null) {
receiveInstallationResult(intent);
} else if (canceled) {
cancel();
} else {
updateStatus(
new ApkInstaller.Status.Failed(
Intent.EXTRA_INTENT + " not found " +
"in intent, this should never happen",
GlobalSplitInstallErrorCode.INTERNAL_ERROR
)
);
}
}
@Override
public void receiveInstallationResult(@NonNull Intent intent) {
logger.i("Received install result to " + this + ", intent: " + StringUtils.fromIntent(intent));
int sessionId = intent.getIntExtra(PackageInstaller.EXTRA_SESSION_ID, -1);
PackageInstaller.SessionInfo sessionInfo = context.getPackageManager()
.getPackageInstaller()
.getSessionInfo(sessionId);
if (sessionId == this.sessionId) {
int status = intent.getIntExtra(PackageInstaller.EXTRA_STATUS, 0);
final String message = intent.getStringExtra(PackageInstaller.EXTRA_STATUS_MESSAGE);
if (status == PackageInstaller.STATUS_SUCCESS) {
executor.execute(new Executor.Callbacks<Void>() {
@Override
Void execute() {
applicationPatcher.patchExistingApplication();
return null;
}
@Override
void onComplete(Void result) {
updateStatus(new ApkInstaller.Status.Installed(message));
}
@Override
void onError(Exception exception) {
onInstallError(exception);
}
});
} else if (status == PackageInstaller.STATUS_PENDING_USER_ACTION) {
Intent confirmIntent = intent.getParcelableExtra(Intent.EXTRA_INTENT);
if (confirmIntent != null) {
context.startActivity(confirmIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
}
} else if (status == PackageInstaller.STATUS_FAILURE_ABORTED) {
updateStatus(new Status.Canceled());
} else {
updateStatus(new ApkInstaller.Status.Failed(
"Error code " + status + ": " + message,
GlobalSplitInstallErrorCode.INTERNAL_ERROR
));
}
} else {
updateStatus(
new ApkInstaller.Status.Failed(
PackageInstaller.EXTRA_SESSION_ID + " not found " +
"in intent, this should never happen",
GlobalSplitInstallErrorCode.INTERNAL_ERROR
)
);
}
}
@Override
public void install(final List<File> apks) {
if (apks.isEmpty()) {
updateStatus(new Status.Failed("apks must not be empty", GlobalSplitInstallErrorCode.INTERNAL_ERROR));
return;
}
this.apks = apks;
updateStatus(new ApkInstaller.Status.Installing());
executor.execute(new ExecutorInstallCallbacks(apks));
}
@NonNull
@Override
public String toString() {
return String.format(
Locale.ENGLISH,
"%s(sessionId=%d)",
getClass().getSimpleName(),
sessionId
);
}
private class ExecutorInstallCallbacks extends Executor.Callbacks<Void> {
private final List<File> apks;
ExecutorInstallCallbacks(List<File> apks) {
this.apks = apks;
}
@Override
Void execute() throws Exception {
doInstall(apks);
return null;
}
@Override
void onError(Exception exception) {
onInstallError(exception);
}
}
}