1 /*
2  * Copyright (C) 2010 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.providers.contacts;
18 
19 import android.icu.util.VersionInfo;
20 import android.content.BroadcastReceiver;
21 import android.content.ComponentName;
22 import android.content.Context;
23 import android.content.Intent;
24 import android.content.SharedPreferences;
25 import android.content.pm.PackageManager;
26 import android.os.Build;
27 import android.os.RemoteException;
28 import android.util.Log;
29 
30 /**
31  * This will be launched during system boot, after the core system has
32  * been brought up but before any non-persistent processes have been
33  * started.  It is launched in a special state, with no content provider
34  * or custom application class associated with the process running.
35  *
36  * It's job is to prime the contacts database. Either create it
37  * if it doesn't exist, or open it and force any necessary upgrades.
38  * All of this heavy lifting happens before the boot animation ends.
39  */
40 public class ContactsUpgradeReceiver extends BroadcastReceiver {
41     static final String TAG = "ContactsUpgradeReceiver";
42     static final String PREF_DB_VERSION = "db_version";
43     static final String PREF_ICU_VERSION = "icu_version";
44     static final String PREF_OS_VERSION = "os_version";
45 
46     @Override
onReceive(Context context, Intent intent)47     public void onReceive(Context context, Intent intent) {
48         // We are now running with the system up, but no apps started,
49         // so can do whatever cleanup after an upgrade that we want.
50 
51         try {
52             long startTime = System.currentTimeMillis();
53 
54             // Lookup the last known database version
55             final SharedPreferences prefs = context.getSharedPreferences(TAG, Context.MODE_PRIVATE);
56             final int prefDbVersion = prefs.getInt(PREF_DB_VERSION, 0);
57 
58             final String curIcuVersion = VersionInfo.ICU_VERSION.toString();
59             final String curOsVersion = getOsVersionString();
60 
61             final String prefIcuVersion = prefs.getString(PREF_ICU_VERSION, "");
62             final String prefOsVersion = prefs.getString(PREF_OS_VERSION, "");
63 
64             // If the version is old go ahead and attempt to create or upgrade the database.
65             if (prefDbVersion != ContactsDatabaseHelper.DATABASE_VERSION ||
66                     !prefIcuVersion.equals(curIcuVersion) ||
67                     !prefOsVersion.equals(curOsVersion)) {
68                 // Store the current version so this receiver isn't run again until the database
69                 // version number changes. This is intentionally done even before the upgrade path
70                 // is attempted to be conservative. If the upgrade fails for some reason and we
71                 // crash and burn we don't want to get into a loop doing so.
72                 SharedPreferences.Editor editor = prefs.edit();
73                 editor.putInt(PREF_DB_VERSION, ContactsDatabaseHelper.DATABASE_VERSION);
74                 editor.putString(PREF_ICU_VERSION, curIcuVersion);
75                 editor.putString(PREF_OS_VERSION, curOsVersion);
76                 editor.commit();
77 
78                 // Ask for a reference to the database to force the helper to either
79                 // create the database or open it up, performing any necessary upgrades
80                 // in the process.
81                 ContactsDatabaseHelper helper = ContactsDatabaseHelper.getInstance(context);
82                 ProfileDatabaseHelper profileHelper = ProfileDatabaseHelper.getInstance(context);
83                 CallLogDatabaseHelper calllogHelper = CallLogDatabaseHelper.getInstance(context);
84 
85                 Log.i(TAG, "Creating or opening contacts database");
86 
87                 helper.getWritableDatabase();
88                 helper.forceDirectoryRescan();
89 
90                 profileHelper.getWritableDatabase();
91                 calllogHelper.getWritableDatabase();
92 
93                 ContactsProvider2.updateLocaleOffline(context, helper, profileHelper);
94 
95                 // Log the total time taken for the receiver to perform the operation
96                 EventLogTags.writeContactsUpgradeReceiver(System.currentTimeMillis() - startTime);
97             }
98         } catch (Throwable t) {
99             // Something has gone terribly wrong. Disable this receiver for good so we can't
100             // possibly end up in a reboot loop.
101             Log.wtf(TAG, "Error during upgrade attempt. Disabling receiver.", t);
102             context.getPackageManager().setComponentEnabledSetting(
103                     new ComponentName(context, getClass()),
104                     PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
105                     PackageManager.DONT_KILL_APP);
106         }
107     }
108 
getOsVersionString()109     private static String getOsVersionString() {
110         return Build.ID;
111     }
112 }
113