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/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.cellbroadcastreceiver;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteException;
import android.database.sqlite.SQLiteOpenHelper;
import android.provider.Telephony;
import android.telephony.SmsCbCmasInfo;
import android.telephony.SmsCbEtwsInfo;
import android.telephony.SmsCbMessage;
import android.util.Log;
import com.android.internal.telephony.gsm.SmsCbConstants;
/**
* Open, create, and upgrade the cell broadcast SQLite database. Previously an inner class of
* {@code CellBroadcastDatabase}, this is now a top-level class. The column definitions in
* {@code CellBroadcastDatabase} have been moved to {@link Telephony.CellBroadcasts} in the
* framework, to simplify access to this database from third-party apps.
*/
public class CellBroadcastDatabaseHelper extends SQLiteOpenHelper {
private static final String TAG = "CellBroadcastDatabaseHelper";
static final String DATABASE_NAME = "cell_broadcasts.db";
static final String TABLE_NAME = "broadcasts";
/** Temporary table for upgrading the database version. */
static final String TEMP_TABLE_NAME = "old_broadcasts";
/**
* Database version 1: initial version
* Database version 2-9: (reserved for OEM database customization)
* Database version 10: adds ETWS and CMAS columns and CDMA support
* Database version 11: adds delivery time index
*/
static final int DATABASE_VERSION = 11;
CellBroadcastDatabaseHelper(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
@Override
public void onCreate(SQLiteDatabase db) {
db.execSQL("CREATE TABLE " + TABLE_NAME + " ("
+ Telephony.CellBroadcasts._ID + " INTEGER PRIMARY KEY AUTOINCREMENT,"
+ Telephony.CellBroadcasts.GEOGRAPHICAL_SCOPE + " INTEGER,"
+ Telephony.CellBroadcasts.PLMN + " TEXT,"
+ Telephony.CellBroadcasts.LAC + " INTEGER,"
+ Telephony.CellBroadcasts.CID + " INTEGER,"
+ Telephony.CellBroadcasts.SERIAL_NUMBER + " INTEGER,"
+ Telephony.CellBroadcasts.SERVICE_CATEGORY + " INTEGER,"
+ Telephony.CellBroadcasts.LANGUAGE_CODE + " TEXT,"
+ Telephony.CellBroadcasts.MESSAGE_BODY + " TEXT,"
+ Telephony.CellBroadcasts.DELIVERY_TIME + " INTEGER,"
+ Telephony.CellBroadcasts.MESSAGE_READ + " INTEGER,"
+ Telephony.CellBroadcasts.MESSAGE_FORMAT + " INTEGER,"
+ Telephony.CellBroadcasts.MESSAGE_PRIORITY + " INTEGER,"
+ Telephony.CellBroadcasts.ETWS_WARNING_TYPE + " INTEGER,"
+ Telephony.CellBroadcasts.CMAS_MESSAGE_CLASS + " INTEGER,"
+ Telephony.CellBroadcasts.CMAS_CATEGORY + " INTEGER,"
+ Telephony.CellBroadcasts.CMAS_RESPONSE_TYPE + " INTEGER,"
+ Telephony.CellBroadcasts.CMAS_SEVERITY + " INTEGER,"
+ Telephony.CellBroadcasts.CMAS_URGENCY + " INTEGER,"
+ Telephony.CellBroadcasts.CMAS_CERTAINTY + " INTEGER);");
createDeliveryTimeIndex(db);
}
private void createDeliveryTimeIndex(SQLiteDatabase db) {
db.execSQL("CREATE INDEX IF NOT EXISTS deliveryTimeIndex ON " + TABLE_NAME
+ " (" + Telephony.CellBroadcasts.DELIVERY_TIME + ");");
}
/** Columns to copy on database upgrade. */
private static final String[] COLUMNS_V1 = {
Telephony.CellBroadcasts.GEOGRAPHICAL_SCOPE,
Telephony.CellBroadcasts.SERIAL_NUMBER,
Telephony.CellBroadcasts.V1_MESSAGE_CODE,
Telephony.CellBroadcasts.V1_MESSAGE_IDENTIFIER,
Telephony.CellBroadcasts.LANGUAGE_CODE,
Telephony.CellBroadcasts.MESSAGE_BODY,
Telephony.CellBroadcasts.DELIVERY_TIME,
Telephony.CellBroadcasts.MESSAGE_READ,
};
private static final int COLUMN_V1_GEOGRAPHICAL_SCOPE = 0;
private static final int COLUMN_V1_SERIAL_NUMBER = 1;
private static final int COLUMN_V1_MESSAGE_CODE = 2;
private static final int COLUMN_V1_MESSAGE_IDENTIFIER = 3;
private static final int COLUMN_V1_LANGUAGE_CODE = 4;
private static final int COLUMN_V1_MESSAGE_BODY = 5;
private static final int COLUMN_V1_DELIVERY_TIME = 6;
private static final int COLUMN_V1_MESSAGE_READ = 7;
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
if (oldVersion == newVersion) {
return;
}
// always log database upgrade
log("Upgrading DB from version " + oldVersion + " to " + newVersion);
// Upgrade from V1 to V10
if (oldVersion == 1) {
db.beginTransaction();
try {
// Step 1: rename original table
db.execSQL("DROP TABLE IF EXISTS " + TEMP_TABLE_NAME);
db.execSQL("ALTER TABLE " + TABLE_NAME + " RENAME TO " + TEMP_TABLE_NAME);
// Step 2: create new table and indices
onCreate(db);
// Step 3: copy each message into the new table
Cursor cursor = db.query(TEMP_TABLE_NAME, COLUMNS_V1, null, null, null, null,
null);
try {
while (cursor.moveToNext()) {
upgradeMessageV1ToV2(db, cursor);
}
} finally {
cursor.close();
}
// Step 4: drop the original table and commit transaction
db.execSQL("DROP TABLE " + TEMP_TABLE_NAME);
db.setTransactionSuccessful();
} finally {
db.endTransaction();
}
oldVersion = 10; // skip to version 10
}
// Note to OEMs: if you have customized the database schema since V1, you will need to
// add your own code here to convert from your version to version 10.
if (oldVersion < 10) {
throw new SQLiteException("CellBroadcastDatabase doesn't know how to upgrade "
+ " DB version " + oldVersion + " (customized by OEM?)");
}
if (oldVersion == 10) {
createDeliveryTimeIndex(db);
oldVersion++;
}
}
/**
* Upgrades a single broadcast message from version 1 to version 2.
*/
private static void upgradeMessageV1ToV2(SQLiteDatabase db, Cursor cursor) {
int geographicalScope = cursor.getInt(COLUMN_V1_GEOGRAPHICAL_SCOPE);
int updateNumber = cursor.getInt(COLUMN_V1_SERIAL_NUMBER);
int messageCode = cursor.getInt(COLUMN_V1_MESSAGE_CODE);
int messageId = cursor.getInt(COLUMN_V1_MESSAGE_IDENTIFIER);
String languageCode = cursor.getString(COLUMN_V1_LANGUAGE_CODE);
String messageBody = cursor.getString(COLUMN_V1_MESSAGE_BODY);
long deliveryTime = cursor.getLong(COLUMN_V1_DELIVERY_TIME);
boolean isRead = (cursor.getInt(COLUMN_V1_MESSAGE_READ) != 0);
int serialNumber = ((geographicalScope & 0x03) << 14)
| ((messageCode & 0x3ff) << 4) | (updateNumber & 0x0f);
ContentValues cv = new ContentValues(16);
cv.put(Telephony.CellBroadcasts.GEOGRAPHICAL_SCOPE, geographicalScope);
cv.put(Telephony.CellBroadcasts.SERIAL_NUMBER, serialNumber);
cv.put(Telephony.CellBroadcasts.SERVICE_CATEGORY, messageId);
cv.put(Telephony.CellBroadcasts.LANGUAGE_CODE, languageCode);
cv.put(Telephony.CellBroadcasts.MESSAGE_BODY, messageBody);
cv.put(Telephony.CellBroadcasts.DELIVERY_TIME, deliveryTime);
cv.put(Telephony.CellBroadcasts.MESSAGE_READ, isRead);
cv.put(Telephony.CellBroadcasts.MESSAGE_FORMAT, SmsCbMessage.MESSAGE_FORMAT_3GPP);
int etwsWarningType = SmsCbEtwsInfo.ETWS_WARNING_TYPE_UNKNOWN;
int cmasMessageClass = SmsCbCmasInfo.CMAS_CLASS_UNKNOWN;
int cmasSeverity = SmsCbCmasInfo.CMAS_SEVERITY_UNKNOWN;
int cmasUrgency = SmsCbCmasInfo.CMAS_URGENCY_UNKNOWN;
int cmasCertainty = SmsCbCmasInfo.CMAS_CERTAINTY_UNKNOWN;
switch (messageId) {
case SmsCbConstants.MESSAGE_ID_ETWS_EARTHQUAKE_WARNING:
etwsWarningType = SmsCbEtwsInfo.ETWS_WARNING_TYPE_EARTHQUAKE;
break;
case SmsCbConstants.MESSAGE_ID_ETWS_TSUNAMI_WARNING:
etwsWarningType = SmsCbEtwsInfo.ETWS_WARNING_TYPE_TSUNAMI;
break;
case SmsCbConstants.MESSAGE_ID_ETWS_EARTHQUAKE_AND_TSUNAMI_WARNING:
etwsWarningType = SmsCbEtwsInfo.ETWS_WARNING_TYPE_EARTHQUAKE_AND_TSUNAMI;
break;
case SmsCbConstants.MESSAGE_ID_ETWS_TEST_MESSAGE:
etwsWarningType = SmsCbEtwsInfo.ETWS_WARNING_TYPE_TEST_MESSAGE;
break;
case SmsCbConstants.MESSAGE_ID_ETWS_OTHER_EMERGENCY_TYPE:
etwsWarningType = SmsCbEtwsInfo.ETWS_WARNING_TYPE_OTHER_EMERGENCY;
break;
case SmsCbConstants.MESSAGE_ID_CMAS_ALERT_PRESIDENTIAL_LEVEL:
cmasMessageClass = SmsCbCmasInfo.CMAS_CLASS_PRESIDENTIAL_LEVEL_ALERT;
break;
case SmsCbConstants.MESSAGE_ID_CMAS_ALERT_EXTREME_IMMEDIATE_OBSERVED:
cmasMessageClass = SmsCbCmasInfo.CMAS_CLASS_EXTREME_THREAT;
cmasSeverity = SmsCbCmasInfo.CMAS_SEVERITY_EXTREME;
cmasUrgency = SmsCbCmasInfo.CMAS_URGENCY_IMMEDIATE;
cmasCertainty = SmsCbCmasInfo.CMAS_CERTAINTY_OBSERVED;
break;
case SmsCbConstants.MESSAGE_ID_CMAS_ALERT_EXTREME_IMMEDIATE_LIKELY:
cmasMessageClass = SmsCbCmasInfo.CMAS_CLASS_EXTREME_THREAT;
cmasSeverity = SmsCbCmasInfo.CMAS_SEVERITY_EXTREME;
cmasUrgency = SmsCbCmasInfo.CMAS_URGENCY_IMMEDIATE;
cmasCertainty = SmsCbCmasInfo.CMAS_CERTAINTY_LIKELY;
break;
case SmsCbConstants.MESSAGE_ID_CMAS_ALERT_EXTREME_EXPECTED_OBSERVED:
cmasMessageClass = SmsCbCmasInfo.CMAS_CLASS_EXTREME_THREAT;
cmasSeverity = SmsCbCmasInfo.CMAS_SEVERITY_EXTREME;
cmasUrgency = SmsCbCmasInfo.CMAS_URGENCY_EXPECTED;
cmasCertainty = SmsCbCmasInfo.CMAS_CERTAINTY_OBSERVED;
break;
case SmsCbConstants.MESSAGE_ID_CMAS_ALERT_EXTREME_EXPECTED_LIKELY:
cmasMessageClass = SmsCbCmasInfo.CMAS_CLASS_EXTREME_THREAT;
cmasSeverity = SmsCbCmasInfo.CMAS_SEVERITY_EXTREME;
cmasUrgency = SmsCbCmasInfo.CMAS_URGENCY_EXPECTED;
cmasCertainty = SmsCbCmasInfo.CMAS_CERTAINTY_LIKELY;
break;
case SmsCbConstants.MESSAGE_ID_CMAS_ALERT_SEVERE_IMMEDIATE_OBSERVED:
cmasMessageClass = SmsCbCmasInfo.CMAS_CLASS_SEVERE_THREAT;
cmasSeverity = SmsCbCmasInfo.CMAS_SEVERITY_SEVERE;
cmasUrgency = SmsCbCmasInfo.CMAS_URGENCY_IMMEDIATE;
cmasCertainty = SmsCbCmasInfo.CMAS_CERTAINTY_OBSERVED;
break;
case SmsCbConstants.MESSAGE_ID_CMAS_ALERT_SEVERE_IMMEDIATE_LIKELY:
cmasMessageClass = SmsCbCmasInfo.CMAS_CLASS_SEVERE_THREAT;
cmasSeverity = SmsCbCmasInfo.CMAS_SEVERITY_SEVERE;
cmasUrgency = SmsCbCmasInfo.CMAS_URGENCY_IMMEDIATE;
cmasCertainty = SmsCbCmasInfo.CMAS_CERTAINTY_LIKELY;
break;
case SmsCbConstants.MESSAGE_ID_CMAS_ALERT_SEVERE_EXPECTED_OBSERVED:
cmasMessageClass = SmsCbCmasInfo.CMAS_CLASS_SEVERE_THREAT;
cmasSeverity = SmsCbCmasInfo.CMAS_SEVERITY_SEVERE;
cmasUrgency = SmsCbCmasInfo.CMAS_URGENCY_EXPECTED;
cmasCertainty = SmsCbCmasInfo.CMAS_CERTAINTY_OBSERVED;
break;
case SmsCbConstants.MESSAGE_ID_CMAS_ALERT_SEVERE_EXPECTED_LIKELY:
cmasMessageClass = SmsCbCmasInfo.CMAS_CLASS_SEVERE_THREAT;
cmasSeverity = SmsCbCmasInfo.CMAS_SEVERITY_SEVERE;
cmasUrgency = SmsCbCmasInfo.CMAS_URGENCY_EXPECTED;
cmasCertainty = SmsCbCmasInfo.CMAS_CERTAINTY_LIKELY;
break;
case SmsCbConstants.MESSAGE_ID_CMAS_ALERT_CHILD_ABDUCTION_EMERGENCY:
cmasMessageClass = SmsCbCmasInfo.CMAS_CLASS_CHILD_ABDUCTION_EMERGENCY;
break;
case SmsCbConstants.MESSAGE_ID_CMAS_ALERT_REQUIRED_MONTHLY_TEST:
cmasMessageClass = SmsCbCmasInfo.CMAS_CLASS_REQUIRED_MONTHLY_TEST;
break;
case SmsCbConstants.MESSAGE_ID_CMAS_ALERT_EXERCISE:
cmasMessageClass = SmsCbCmasInfo.CMAS_CLASS_CMAS_EXERCISE;
break;
case SmsCbConstants.MESSAGE_ID_CMAS_ALERT_OPERATOR_DEFINED_USE:
cmasMessageClass = SmsCbCmasInfo.CMAS_CLASS_OPERATOR_DEFINED_USE;
break;
}
if (etwsWarningType != SmsCbEtwsInfo.ETWS_WARNING_TYPE_UNKNOWN
|| cmasMessageClass != SmsCbCmasInfo.CMAS_CLASS_UNKNOWN) {
cv.put(Telephony.CellBroadcasts.MESSAGE_PRIORITY,
SmsCbMessage.MESSAGE_PRIORITY_EMERGENCY);
} else {
cv.put(Telephony.CellBroadcasts.MESSAGE_PRIORITY,
SmsCbMessage.MESSAGE_PRIORITY_NORMAL);
}
if (etwsWarningType != SmsCbEtwsInfo.ETWS_WARNING_TYPE_UNKNOWN) {
cv.put(Telephony.CellBroadcasts.ETWS_WARNING_TYPE, etwsWarningType);
}
if (cmasMessageClass != SmsCbCmasInfo.CMAS_CLASS_UNKNOWN) {
cv.put(Telephony.CellBroadcasts.CMAS_MESSAGE_CLASS, cmasMessageClass);
}
if (cmasSeverity != SmsCbCmasInfo.CMAS_SEVERITY_UNKNOWN) {
cv.put(Telephony.CellBroadcasts.CMAS_SEVERITY, cmasSeverity);
}
if (cmasUrgency != SmsCbCmasInfo.CMAS_URGENCY_UNKNOWN) {
cv.put(Telephony.CellBroadcasts.CMAS_URGENCY, cmasUrgency);
}
if (cmasCertainty != SmsCbCmasInfo.CMAS_CERTAINTY_UNKNOWN) {
cv.put(Telephony.CellBroadcasts.CMAS_CERTAINTY, cmasCertainty);
}
db.insert(TABLE_NAME, null, cv);
}
private static void log(String msg) {
Log.d(TAG, msg);
}
}
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