1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License 15 */ 16 17 package com.android.internal.app; 18 19 import android.content.Context; 20 import android.content.DialogInterface; 21 import android.content.Intent; 22 import android.content.IntentSender; 23 import android.content.pm.ApplicationInfo; 24 import android.content.pm.PackageManager; 25 import android.os.Bundle; 26 import android.util.Log; 27 import android.view.View; 28 import android.widget.TextView; 29 import com.android.internal.R; 30 31 /** 32 * This dialog is shown to the user before an activity in a harmful app is launched. 33 * 34 * See {@code PackageManager.setHarmfulAppInfo} for more info. 35 */ 36 public class HarmfulAppWarningActivity extends AlertActivity implements 37 DialogInterface.OnClickListener { 38 private static final String TAG = HarmfulAppWarningActivity.class.getSimpleName(); 39 40 private static final String EXTRA_HARMFUL_APP_WARNING = "harmful_app_warning"; 41 42 private String mPackageName; 43 private String mHarmfulAppWarning; 44 private IntentSender mTarget; 45 46 @Override onCreate(Bundle savedInstanceState)47 protected void onCreate(Bundle savedInstanceState) { 48 super.onCreate(savedInstanceState); 49 50 final Intent intent = getIntent(); 51 mPackageName = intent.getStringExtra(Intent.EXTRA_PACKAGE_NAME); 52 mTarget = intent.getParcelableExtra(Intent.EXTRA_INTENT); 53 mHarmfulAppWarning = intent.getStringExtra(EXTRA_HARMFUL_APP_WARNING); 54 55 if (mPackageName == null || mTarget == null || mHarmfulAppWarning == null) { 56 Log.wtf(TAG, "Invalid intent: " + intent.toString()); 57 finish(); 58 } 59 60 final ApplicationInfo applicationInfo; 61 try { 62 applicationInfo = getPackageManager().getApplicationInfo(mPackageName, 0 /*flags*/); 63 } catch (PackageManager.NameNotFoundException e) { 64 Log.e(TAG, "Could not show warning because package does not exist ", e); 65 finish(); 66 return; 67 } 68 69 final AlertController.AlertParams p = mAlertParams; 70 p.mTitle = getString(R.string.harmful_app_warning_title); 71 p.mView = createView(applicationInfo); 72 73 p.mPositiveButtonText = getString(R.string.harmful_app_warning_uninstall); 74 p.mPositiveButtonListener = this; 75 p.mNegativeButtonText = getString(R.string.harmful_app_warning_open_anyway); 76 p.mNegativeButtonListener = this; 77 78 mAlert.installContent(mAlertParams); 79 } 80 createView(ApplicationInfo applicationInfo)81 private View createView(ApplicationInfo applicationInfo) { 82 final View view = getLayoutInflater().inflate(R.layout.harmful_app_warning_dialog, 83 null /*root*/); 84 ((TextView) view.findViewById(R.id.app_name_text)) 85 .setText(applicationInfo.loadSafeLabel(getPackageManager())); 86 ((TextView) view.findViewById(R.id.message)) 87 .setText(mHarmfulAppWarning); 88 return view; 89 } 90 91 @Override onClick(DialogInterface dialog, int which)92 public void onClick(DialogInterface dialog, int which) { 93 switch (which) { 94 case DialogInterface.BUTTON_POSITIVE: 95 getPackageManager().deletePackage(mPackageName, null /*observer*/, 0 /*flags*/); 96 EventLogTags.writeHarmfulAppWarningUninstall(mPackageName); 97 finish(); 98 break; 99 case DialogInterface.BUTTON_NEGATIVE: 100 getPackageManager().setHarmfulAppWarning(mPackageName, null /*warning*/); 101 102 final IntentSender target = getIntent().getParcelableExtra(Intent.EXTRA_INTENT); 103 try { 104 startIntentSenderForResult(target, -1 /*requestCode*/, null /*fillInIntent*/, 105 0 /*flagsMask*/, 0 /*flagsValue*/, 0 /*extraFlags*/); 106 } catch (IntentSender.SendIntentException e) { 107 Log.e(TAG, "Error while starting intent sender", e); 108 } 109 EventLogTags.writeHarmfulAppWarningLaunchAnyway(mPackageName); 110 finish(); 111 break; 112 } 113 } 114 createHarmfulAppWarningIntent(Context context, String targetPackageName, IntentSender target, CharSequence harmfulAppWarning)115 public static Intent createHarmfulAppWarningIntent(Context context, String targetPackageName, 116 IntentSender target, CharSequence harmfulAppWarning) { 117 final Intent intent = new Intent(); 118 intent.setClass(context, HarmfulAppWarningActivity.class); 119 intent.putExtra(Intent.EXTRA_PACKAGE_NAME, targetPackageName); 120 intent.putExtra(Intent.EXTRA_INTENT, target); 121 intent.putExtra(EXTRA_HARMFUL_APP_WARNING, harmfulAppWarning); 122 return intent; 123 } 124 } 125