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      1 /*
      2  * Copyright (C) 2009 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.phone;
     18 
     19 import android.content.BroadcastReceiver;
     20 import android.content.Context;
     21 import android.content.Intent;
     22 import android.content.pm.PackageManager;
     23 import android.content.pm.ResolveInfo;
     24 import android.os.AsyncResult;
     25 import android.os.Handler;
     26 import android.os.Message;
     27 import android.os.SystemProperties;
     28 import android.provider.Settings;
     29 import android.telephony.PhoneStateListener;
     30 import android.telephony.ServiceState;
     31 import android.telephony.TelephonyManager;
     32 
     33 import com.android.internal.telephony.Phone;
     34 import com.android.internal.telephony.ServiceStateTracker;
     35 import com.android.internal.telephony.TelephonyCapabilities;
     36 
     37 import android.util.Log;
     38 
     39 /*
     40  * Handles OTA Start procedure at phone power up. At phone power up, if phone is not OTA
     41  * provisioned (check MIN value of the Phone) and 'device_provisioned' is not set,
     42  * OTA Activation screen is shown that helps user activate the phone
     43  */
     44 public class OtaStartupReceiver extends BroadcastReceiver {
     45     private static final String TAG = "OtaStartupReceiver";
     46     private static final boolean DBG = false;
     47     private static final int MIN_READY = 10;
     48     private static final int SERVICE_STATE_CHANGED = 11;
     49     private Context mContext;
     50 
     51     private int mOtaspMode = -1;
     52     private boolean mPhoneStateListenerRegistered = false;
     53     private PhoneStateListener mPhoneStateListener = new PhoneStateListener() {
     54         @Override
     55         public void onOtaspChanged(int otaspMode) {
     56             if (mOtaspMode == otaspMode) {
     57                 return;
     58             }
     59             mOtaspMode = otaspMode;
     60             Log.v(TAG, "onOtaspChanged: mOtaspMode=" + mOtaspMode);
     61 
     62             if (otaspMode == ServiceStateTracker.OTASP_NEEDED) {
     63                 Log.i(TAG, "OTASP is needed - performing CDMA provisioning");
     64                 final Intent intent = new Intent(OtaUtils.ACTION_PERFORM_CDMA_PROVISIONING);
     65                 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
     66                 mContext.startActivity(intent);
     67             }
     68         }
     69     };
     70 
     71 
     72     private Handler mHandler = new Handler() {
     73         @Override
     74         public void handleMessage(Message msg) {
     75             switch (msg.what) {
     76                 case MIN_READY:
     77                     Log.v(TAG, "Attempting OtaActivation from handler, mOtaspMode=" + mOtaspMode);
     78                     OtaUtils.maybeDoOtaCall(mContext, mHandler, MIN_READY);
     79                     break;
     80                 case SERVICE_STATE_CHANGED: {
     81                     ServiceState state = (ServiceState) ((AsyncResult) msg.obj).result;
     82                     if (DBG) Log.d(TAG, "onServiceStateChanged()...  new state = " + state);
     83 
     84                     // Possible service states:
     85                     // - STATE_IN_SERVICE        // Normal operation
     86                     // - STATE_OUT_OF_SERVICE    // Still searching for an operator to register to,
     87                     //                           // or no radio signal
     88                     // - STATE_EMERGENCY_ONLY    // Phone is locked; only emergency numbers are allowed
     89                     // - STATE_POWER_OFF         // Radio is explicitly powered off (airplane mode)
     90 
     91                     // Once we reach STATE_IN_SERVICE
     92                     // it's finally OK to start OTA provisioning
     93                     if (state.getState() == ServiceState.STATE_IN_SERVICE) {
     94                         if (DBG) Log.d(TAG, "call OtaUtils.maybeDoOtaCall after network is available");
     95                         Phone phone = PhoneGlobals.getPhone();
     96                         phone.unregisterForServiceStateChanged(this);
     97                         OtaUtils.maybeDoOtaCall(mContext, mHandler, MIN_READY);
     98                     }
     99                     break;
    100                 }
    101             }
    102 
    103         }
    104     };
    105 
    106     @Override
    107     public void onReceive(Context context, Intent intent) {
    108         mContext = context;
    109         if (DBG) {
    110             Log.v(TAG, "onReceive: intent action=" + intent.getAction() +
    111                     "  mOtaspMode=" + mOtaspMode);
    112         }
    113 
    114         PhoneGlobals globals = PhoneGlobals.getInstanceIfPrimary();
    115         if (globals == null) {
    116             if (DBG) Log.d(TAG, "Not primary user, nothing to do.");
    117             return;
    118         }
    119 
    120         if (mPhoneStateListenerRegistered == false) {
    121             if (DBG) Log.d(TAG, "Register our PhoneStateListener");
    122             TelephonyManager telephonyManager = (TelephonyManager)context.getSystemService(
    123                     Context.TELEPHONY_SERVICE);
    124             telephonyManager.listen(mPhoneStateListener, PhoneStateListener.LISTEN_OTASP_CHANGED);
    125             mPhoneStateListenerRegistered = true;
    126         } else {
    127             if (DBG) Log.d(TAG, "PhoneStateListener already registered");
    128         }
    129 
    130         if (!TelephonyCapabilities.supportsOtasp(PhoneGlobals.getPhone())) {
    131             if (DBG) Log.d(TAG, "OTASP not supported, nothing to do.");
    132             return;
    133         }
    134 
    135         if (shouldPostpone(context)) {
    136             if (DBG) Log.d(TAG, "Postponing OTASP until wizard runs");
    137             return;
    138         }
    139 
    140         // Delay OTA provisioning if network is not available yet
    141         PhoneGlobals app = PhoneGlobals.getInstance();
    142         Phone phone = PhoneGlobals.getPhone();
    143         if (app.mCM.getServiceState() != ServiceState.STATE_IN_SERVICE) {
    144             if (DBG) Log.w(TAG, "Network is not ready. Registering to receive notification.");
    145             phone.registerForServiceStateChanged(mHandler, SERVICE_STATE_CHANGED, null);
    146             return;
    147         }
    148 
    149         // The following depends on the phone process being persistent. Normally we can't
    150         // expect a BroadcastReceiver to persist after returning from this function but it does
    151         // because the phone activity is persistent.
    152         if (DBG) Log.d(TAG, "call OtaUtils.maybeDoOtaCall");
    153         OtaUtils.maybeDoOtaCall(mContext, mHandler, MIN_READY);
    154     }
    155 
    156     /**
    157      * On devices that provide a phone initialization wizard (such as Google Setup Wizard), we
    158      * allow delaying CDMA OTA setup so it can be done in a single wizard. The wizard is responsible
    159      * for (1) disabling itself once it has been run and/or (2) setting the 'device_provisioned'
    160      * flag to something non-zero and (3) calling the OTA Setup with the action below.
    161      *
    162      * NB: Typical phone initialization wizards will install themselves as the homescreen
    163      * (category "android.intent.category.HOME") with a priority higher than the default.
    164      * The wizard should set 'device_provisioned' when it completes, disable itself with the
    165      * PackageManager.setComponentEnabledSetting() and then start home screen.
    166      *
    167      * @return true if setup will be handled by wizard, false if it should be done now.
    168      */
    169     private boolean shouldPostpone(Context context) {
    170         Intent intent = new Intent("android.intent.action.DEVICE_INITIALIZATION_WIZARD");
    171         ResolveInfo resolveInfo = context.getPackageManager().resolveActivity(intent,
    172                 PackageManager.MATCH_DEFAULT_ONLY);
    173         boolean provisioned = Settings.Global.getInt(context.getContentResolver(),
    174                 Settings.Global.DEVICE_PROVISIONED, 0) != 0;
    175         String mode = SystemProperties.get("ro.setupwizard.mode", "REQUIRED");
    176         boolean runningSetupWizard = "REQUIRED".equals(mode) || "OPTIONAL".equals(mode);
    177         if (DBG) {
    178             Log.v(TAG, "resolvInfo = " + resolveInfo + ", provisioned = " + provisioned
    179                     + ", runningSetupWizard = " + runningSetupWizard);
    180         }
    181         return resolveInfo != null && !provisioned && runningSetupWizard;
    182     }
    183 }
    184