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
onReceive(Context context, Intent intent)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      */
shouldPostpone(Context context)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