| /* |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.packageinstaller; |
| |
| import android.annotation.Nullable; |
| import android.app.Activity; |
| import android.app.AlertDialog; |
| import android.app.Dialog; |
| import android.app.DialogFragment; |
| import android.content.Context; |
| import android.content.DialogInterface; |
| import android.content.Intent; |
| import android.content.pm.PackageManager; |
| import android.net.Uri; |
| import android.os.AsyncTask; |
| import android.os.Bundle; |
| import android.util.Log; |
| import android.view.View; |
| |
| import com.android.internal.app.AlertActivity; |
| |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| |
| /** |
| * If a package gets installed from an content URI this step loads the package and turns it into |
| * and installation from a file. Then it re-starts the installation as usual. |
| */ |
| public class InstallStaging extends AlertActivity { |
| private static final String LOG_TAG = InstallStaging.class.getSimpleName(); |
| |
| private static final String STAGED_FILE = "STAGED_FILE"; |
| |
| /** Currently running task that loads the file from the content URI into a file */ |
| private @Nullable StagingAsyncTask mStagingTask; |
| |
| /** The file the package is in */ |
| private @Nullable File mStagedFile; |
| |
| @Override |
| protected void onCreate(@Nullable Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| |
| mAlert.setIcon(R.drawable.ic_file_download); |
| mAlert.setTitle(getString(R.string.app_name_unknown)); |
| mAlert.setView(R.layout.install_content_view); |
| mAlert.setButton(DialogInterface.BUTTON_NEGATIVE, getString(R.string.cancel), |
| (ignored, ignored2) -> { |
| if (mStagingTask != null) { |
| mStagingTask.cancel(true); |
| } |
| setResult(RESULT_CANCELED); |
| finish(); |
| }, null); |
| setupAlert(); |
| requireViewById(R.id.staging).setVisibility(View.VISIBLE); |
| |
| if (savedInstanceState != null) { |
| mStagedFile = new File(savedInstanceState.getString(STAGED_FILE)); |
| |
| if (!mStagedFile.exists()) { |
| mStagedFile = null; |
| } |
| } |
| } |
| |
| @Override |
| protected void onResume() { |
| super.onResume(); |
| |
| // This is the first onResume in a single life of the activity |
| if (mStagingTask == null) { |
| // File does not exist, or became invalid |
| if (mStagedFile == null) { |
| // Create file delayed to be able to show error |
| try { |
| mStagedFile = TemporaryFileManager.getStagedFile(this); |
| } catch (IOException e) { |
| showError(); |
| return; |
| } |
| } |
| |
| mStagingTask = new StagingAsyncTask(); |
| mStagingTask.execute(getIntent().getData()); |
| } |
| } |
| |
| @Override |
| protected void onSaveInstanceState(Bundle outState) { |
| super.onSaveInstanceState(outState); |
| |
| outState.putString(STAGED_FILE, mStagedFile.getPath()); |
| } |
| |
| @Override |
| protected void onDestroy() { |
| if (mStagingTask != null) { |
| mStagingTask.cancel(true); |
| } |
| |
| super.onDestroy(); |
| } |
| |
| /** |
| * Show an error message and set result as error. |
| */ |
| private void showError() { |
| (new ErrorDialog()).showAllowingStateLoss(getFragmentManager(), "error"); |
| |
| Intent result = new Intent(); |
| result.putExtra(Intent.EXTRA_INSTALL_RESULT, |
| PackageManager.INSTALL_FAILED_INVALID_APK); |
| setResult(RESULT_FIRST_USER, result); |
| } |
| |
| /** |
| * Dialog for errors while staging. |
| */ |
| public static class ErrorDialog extends DialogFragment { |
| private Activity mActivity; |
| |
| @Override |
| public void onAttach(Context context) { |
| super.onAttach(context); |
| |
| mActivity = (Activity) context; |
| } |
| |
| @Override |
| public Dialog onCreateDialog(Bundle savedInstanceState) { |
| AlertDialog alertDialog = new AlertDialog.Builder(mActivity) |
| .setMessage(R.string.Parse_error_dlg_text) |
| .setPositiveButton(R.string.ok, |
| (dialog, which) -> mActivity.finish()) |
| .create(); |
| alertDialog.setCanceledOnTouchOutside(false); |
| |
| return alertDialog; |
| } |
| |
| @Override |
| public void onCancel(DialogInterface dialog) { |
| super.onCancel(dialog); |
| |
| mActivity.finish(); |
| } |
| } |
| |
| private final class StagingAsyncTask extends AsyncTask<Uri, Void, Boolean> { |
| @Override |
| protected Boolean doInBackground(Uri... params) { |
| if (params == null || params.length <= 0) { |
| return false; |
| } |
| Uri packageUri = params[0]; |
| try (InputStream in = getContentResolver().openInputStream(packageUri)) { |
| // Despite the comments in ContentResolver#openInputStream the returned stream can |
| // be null. |
| if (in == null) { |
| return false; |
| } |
| |
| try (OutputStream out = new FileOutputStream(mStagedFile)) { |
| byte[] buffer = new byte[1024 * 1024]; |
| int bytesRead; |
| while ((bytesRead = in.read(buffer)) >= 0) { |
| // Be nice and respond to a cancellation |
| if (isCancelled()) { |
| return false; |
| } |
| out.write(buffer, 0, bytesRead); |
| } |
| } |
| } catch (IOException | SecurityException | IllegalStateException e) { |
| Log.w(LOG_TAG, "Error staging apk from content URI", e); |
| return false; |
| } |
| return true; |
| } |
| |
| @Override |
| protected void onPostExecute(Boolean success) { |
| if (success) { |
| // Now start the installation again from a file |
| Intent installIntent = new Intent(getIntent()); |
| installIntent.setClass(InstallStaging.this, DeleteStagedFileOnResult.class); |
| installIntent.setData(Uri.fromFile(mStagedFile)); |
| |
| if (installIntent.getBooleanExtra(Intent.EXTRA_RETURN_RESULT, false)) { |
| installIntent.addFlags(Intent.FLAG_ACTIVITY_FORWARD_RESULT); |
| } |
| |
| installIntent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION); |
| startActivity(installIntent); |
| |
| InstallStaging.this.finish(); |
| } else { |
| showError(); |
| } |
| } |
| } |
| } |