content: /*
   * Copyright (C) 2018 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.internal.app;
  
  import android.content.Context;
  import android.content.DialogInterface;
  import android.content.Intent;
  import android.content.IntentSender;
  import android.content.pm.ApplicationInfo;
  import android.content.pm.PackageItemInfo;
  import android.content.pm.PackageManager;
  import android.os.Bundle;
  import android.util.Log;
  import android.view.View;
  import android.widget.TextView;
  import com.android.internal.R;
  
  /**
   * This dialog is shown to the user before an activity in a harmful app is launched.
   *
   * See {@code PackageManager.setHarmfulAppInfo} for more info.
   */
  public class HarmfulAppWarningActivity extends AlertActivity implements
          DialogInterface.OnClickListener {
      private static final String TAG = HarmfulAppWarningActivity.class.getSimpleName();
  
      private static final String EXTRA_HARMFUL_APP_WARNING = "harmful_app_warning";
  
      private String mPackageName;
      private String mHarmfulAppWarning;
      private IntentSender mTarget;
  
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
  
          final Intent intent = getIntent();
          mPackageName = intent.getStringExtra(Intent.EXTRA_PACKAGE_NAME);
          mTarget = intent.getParcelableExtra(Intent.EXTRA_INTENT);
          mHarmfulAppWarning = intent.getStringExtra(EXTRA_HARMFUL_APP_WARNING);
  
          if (mPackageName == null || mTarget == null || mHarmfulAppWarning == null) {
              Log.wtf(TAG, "Invalid intent: " + intent.toString());
              finish();
          }
  
          final ApplicationInfo applicationInfo;
          try {
              applicationInfo = getPackageManager().getApplicationInfo(mPackageName, 0 /*flags*/);
          } catch (PackageManager.NameNotFoundException e) {
              Log.e(TAG, "Could not show warning because package does not exist ", e);
              finish();
              return;
          }
  
          final AlertController.AlertParams p = mAlertParams;
          p.mTitle = getString(R.string.harmful_app_warning_title);
          p.mView = createView(applicationInfo);
  
          p.mPositiveButtonText = getString(R.string.harmful_app_warning_uninstall);
          p.mPositiveButtonListener = this;
          p.mNegativeButtonText = getString(R.string.harmful_app_warning_open_anyway);
          p.mNegativeButtonListener = this;
  
          mAlert.installContent(mAlertParams);
      }
  
      private View createView(ApplicationInfo applicationInfo) {
          final View view = getLayoutInflater().inflate(R.layout.harmful_app_warning_dialog,
                  null /*root*/);
          ((TextView) view.findViewById(R.id.app_name_text))
                  .setText(applicationInfo.loadSafeLabel(getPackageManager(),
                          PackageItemInfo.DEFAULT_MAX_LABEL_SIZE_PX,
                          PackageItemInfo.SAFE_LABEL_FLAG_FIRST_LINE
                                  | PackageItemInfo.SAFE_LABEL_FLAG_TRIM));
          ((TextView) view.findViewById(R.id.message))
                  .setText(mHarmfulAppWarning);
          return view;
      }
  
      @Override
      public void onClick(DialogInterface dialog, int which) {
          switch (which) {
              case DialogInterface.BUTTON_POSITIVE:
                  getPackageManager().deletePackage(mPackageName, null /*observer*/, 0 /*flags*/);
                  EventLogTags.writeHarmfulAppWarningUninstall(mPackageName);
                  finish();
                  break;
              case DialogInterface.BUTTON_NEGATIVE:
                  getPackageManager().setHarmfulAppWarning(mPackageName, null /*warning*/);
  
                  final IntentSender target = getIntent().getParcelableExtra(Intent.EXTRA_INTENT);
                  try {
                      startIntentSenderForResult(target, -1 /*requestCode*/, null /*fillInIntent*/,
                              0 /*flagsMask*/, 0 /*flagsValue*/, 0 /*extraFlags*/);
                  } catch (IntentSender.SendIntentException e) {
                      Log.e(TAG, "Error while starting intent sender", e);
                  }
                  EventLogTags.writeHarmfulAppWarningLaunchAnyway(mPackageName);
                  finish();
                  break;
          }
      }
  
      public static Intent createHarmfulAppWarningIntent(Context context, String targetPackageName,
              IntentSender target, CharSequence harmfulAppWarning) {
          final Intent intent = new Intent();
          intent.setClass(context, HarmfulAppWarningActivity.class);
          intent.putExtra(Intent.EXTRA_PACKAGE_NAME, targetPackageName);
          intent.putExtra(Intent.EXTRA_INTENT, target);
          intent.putExtra(EXTRA_HARMFUL_APP_WARNING, harmfulAppWarning);
          return intent;
      }
  }
  