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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 
     17 package com.android.managedprovisioning;
     18 
     19 import static android.app.admin.DeviceAdminReceiver.ACTION_PROFILE_PROVISIONING_COMPLETE;
     20 import static android.app.admin.DevicePolicyManager.EXTRA_PROVISIONING_ACCOUNT_TO_MIGRATE;
     21 import static android.app.admin.DevicePolicyManager.EXTRA_PROVISIONING_ADMIN_EXTRAS_BUNDLE;
     22 
     23 import android.accounts.Account;
     24 import android.app.Activity;
     25 import android.app.admin.DevicePolicyManager;
     26 import android.content.BroadcastReceiver;
     27 import android.content.ComponentName;
     28 import android.content.Context;
     29 import android.content.Intent;
     30 import android.content.pm.PackageManager;
     31 import android.os.AsyncTask;
     32 import android.os.Bundle;
     33 import android.os.UserHandle;
     34 
     35 import com.android.managedprovisioning.Utils.IllegalProvisioningArgumentException;
     36 
     37 /*
     38  * This class is used to make sure that we start the mdm after we shut the Setup wizard down.
     39  * The shut down of the Setup wizard is initiated in the DeviceOwnerProvisioningActivity or
     40  * ProfileOwnerProvisioningActivity by setting Global.DEVICE_PROVISIONED. This will cause the
     41  * Setup wizard to shut down and send a HOME intent. Instead of opening the home screen we want
     42  * to open the mdm, so the HOME intent is caught by this activity instead which will send the
     43  * ACTION_PROFILE_PROVISIONING_COMPLETE to the mdm, which will then open up.
     44  */
     45 
     46 public class HomeReceiverActivity extends Activity {
     47 
     48     private ProvisioningParams mParams;
     49 
     50     @Override
     51     public void onCreate(Bundle savedInstanceState) {
     52         super.onCreate(savedInstanceState);
     53         try {
     54             finalizeProvisioning();
     55         } finally {
     56             // Disable the HomeReceiverActivity. Make sure this is always called to prevent an
     57             // infinite loop of HomeReceiverActivity capturing HOME intent in case something fails.
     58             disableComponent(new ComponentName(this, HomeReceiverActivity.class));
     59         }
     60         finish();
     61     }
     62 
     63     private void finalizeProvisioning() {
     64         mParams = loadProvisioningParamsFromStore(
     65                 BootReminder.getProfileOwnerFinalizingIntentStore(this));
     66         if (mParams != null) {
     67             // Finalizing provisioning: send complete intent to mdm.
     68             finalizeProfileOwnerProvisioning();
     69             return;
     70         }
     71         mParams = loadProvisioningParamsFromStore(
     72                 BootReminder.getDeviceOwnerFinalizingIntentStore(this));
     73         if (mParams != null) {
     74             finalizeDeviceOwnerProvisioning();
     75         }
     76     }
     77 
     78     private void finalizeProfileOwnerProvisioning() {
     79         Intent provisioningCompleteIntent = getProvisioningCompleteIntent();
     80         if (provisioningCompleteIntent == null) {
     81             return;
     82         }
     83 
     84         final UserHandle managedUserHandle = Utils.getManagedProfile(this);
     85         if (managedUserHandle == null) {
     86             ProvisionLogger.loge("Failed to retrieve the userHandle of the managed profile.");
     87             return;
     88         }
     89         BroadcastReceiver mdmReceivedSuccessReceiver = new MdmReceivedSuccessReceiver(
     90                 mParams.accountToMigrate, mParams.deviceAdminPackageName);
     91 
     92         sendOrderedBroadcastAsUser(provisioningCompleteIntent, managedUserHandle, null,
     93                 mdmReceivedSuccessReceiver, null, Activity.RESULT_OK, null, null);
     94     }
     95 
     96     private void finalizeDeviceOwnerProvisioning() {
     97         Intent provisioningCompleteIntent = getProvisioningCompleteIntent();
     98         if (provisioningCompleteIntent == null) {
     99             return;
    100         }
    101 
    102         // Disable the Device Initializer component, if it exists, in case it did not do so itself.
    103         if(mParams.deviceInitializerComponentName != null) {
    104             DevicePolicyManager devicePolicyManager =
    105                     (DevicePolicyManager) getSystemService(DEVICE_POLICY_SERVICE);
    106             devicePolicyManager.removeActiveAdmin(mParams.deviceInitializerComponentName);
    107             disableComponent(mParams.deviceInitializerComponentName);
    108         }
    109 
    110         sendBroadcast(provisioningCompleteIntent);
    111     }
    112 
    113     private Intent getProvisioningCompleteIntent() {
    114         Intent intent = new Intent(ACTION_PROFILE_PROVISIONING_COMPLETE);
    115         try {
    116             intent.setComponent(mParams.inferDeviceAdminComponentName(this));
    117         } catch (Utils.IllegalProvisioningArgumentException e) {
    118             ProvisionLogger.loge("Failed to infer the device admin component name", e);
    119             return null;
    120         }
    121         intent.addFlags(Intent.FLAG_INCLUDE_STOPPED_PACKAGES | Intent.FLAG_RECEIVER_FOREGROUND);
    122         if (mParams.adminExtrasBundle != null) {
    123             intent.putExtra(EXTRA_PROVISIONING_ADMIN_EXTRAS_BUNDLE, mParams.adminExtrasBundle);
    124         }
    125         return intent;
    126     }
    127 
    128     private ProvisioningParams loadProvisioningParamsFromStore(IntentStore store) {
    129         Intent intent = store.load();
    130         if (intent == null) {
    131             ProvisionLogger.loge("Fail to retrieve ProvisioningParams from intent store.");
    132             return null;
    133         }
    134         store.clear();
    135         ProvisioningParams params = null;
    136         try {
    137             params = (new MessageParser()).parseNonNfcIntent(intent, true /* trusted */);
    138         } catch (IllegalProvisioningArgumentException e) {
    139             ProvisionLogger.loge("Failed to parse provisioning intent", e);
    140         }
    141         return params;
    142     }
    143 
    144     private void disableComponent(ComponentName component) {
    145         PackageManager pm = getPackageManager();
    146         pm.setComponentEnabledSetting(component,
    147                 PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
    148                 PackageManager.DONT_KILL_APP);
    149     }
    150 }
    151