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
17package com.android.phone;
18
19import android.content.BroadcastReceiver;
20import android.content.Context;
21import android.content.Intent;
22import android.content.pm.PackageManager;
23import android.content.pm.ResolveInfo;
24import android.os.AsyncResult;
25import android.os.Handler;
26import android.os.Message;
27import android.os.SystemProperties;
28import android.provider.Settings;
29import android.telephony.PhoneStateListener;
30import android.telephony.ServiceState;
31import android.telephony.TelephonyManager;
32
33import com.android.internal.telephony.Phone;
34import com.android.internal.telephony.ServiceStateTracker;
35import com.android.internal.telephony.TelephonyCapabilities;
36
37import 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 */
44public 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