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      1 /*
      2  * Copyright 2014, 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 package com.android.managedprovisioning;
     17 
     18 import android.app.admin.DevicePolicyManager;
     19 import android.content.Intent;
     20 import android.os.Bundle;
     21 import android.os.ServiceManager;
     22 import android.os.storage.IMountService;
     23 import android.os.RemoteException;
     24 import android.view.View;
     25 import android.widget.TextView;
     26 
     27 /**
     28  * Activity to ask for permission to activate full-filesystem encryption.
     29  *
     30  * Pressing 'settings' will launch settings to prompt the user to encrypt
     31  * the device.
     32  */
     33 public class EncryptDeviceActivity extends SetupLayoutActivity {
     34     protected static final String EXTRA_RESUME = "com.android.managedprovisioning.RESUME";
     35     protected static final String EXTRA_RESUME_TARGET =
     36             "com.android.managedprovisioning.RESUME_TARGET";
     37     protected static final String TARGET_PROFILE_OWNER = "profile_owner";
     38     protected static final String TARGET_DEVICE_OWNER = "device_owner";
     39 
     40     private Bundle mResumeInfo;
     41     private String mResumeTarget;
     42 
     43     @Override
     44     public void onCreate(Bundle savedInstanceState) {
     45         super.onCreate(savedInstanceState);
     46 
     47         mResumeInfo = getIntent().getBundleExtra(EXTRA_RESUME);
     48         mResumeTarget = mResumeInfo.getString(EXTRA_RESUME_TARGET);
     49 
     50         if (TARGET_PROFILE_OWNER.equals(mResumeTarget)) {
     51             initializeLayoutParams(R.layout.encrypt_device, R.string.setup_work_profile, false);
     52             setTitle(R.string.setup_profile_encryption);
     53             ((TextView) findViewById(R.id.encrypt_main_text)).setText(
     54                     R.string.encrypt_device_text_for_profile_owner_setup);
     55         } else if (TARGET_DEVICE_OWNER.equals(mResumeTarget)) {
     56             initializeLayoutParams(R.layout.encrypt_device, R.string.setup_work_device, false);
     57             setTitle(R.string.setup_device_encryption);
     58             ((TextView) findViewById(R.id.encrypt_main_text)).setText(
     59                     R.string.encrypt_device_text_for_device_owner_setup);
     60         }
     61         configureNavigationButtons(R.string.encrypt_device_launch_settings,
     62             View.VISIBLE, View.VISIBLE);
     63     }
     64 
     65     public static boolean isDeviceEncrypted() {
     66         IMountService mountService = IMountService.Stub.asInterface(
     67                 ServiceManager.getService("mount"));
     68 
     69         try {
     70             return (mountService.getEncryptionState() == IMountService.ENCRYPTION_STATE_OK);
     71         } catch (RemoteException e) {
     72             return false;
     73         }
     74     }
     75 
     76     @Override
     77     public void onNavigateNext() {
     78         BootReminder.setProvisioningReminder(EncryptDeviceActivity.this, mResumeInfo);
     79         // Use settings so user confirms password/pattern and its passed
     80         // to encryption tool.
     81         Intent intent = new Intent();
     82         intent.setAction(DevicePolicyManager.ACTION_START_ENCRYPTION);
     83         startActivity(intent);
     84     }
     85 }