/*
* 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 android.telephony;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.os.Parcel;
import android.os.Parcelable;
import android.provider.Telephony;
import android.text.format.DateUtils;
/**
* Application wrapper for {@link SmsCbMessage}. This is Parcelable so that
* decoded broadcast message objects can be passed between running Services.
* New broadcasts are received by the CellBroadcastReceiver app, which exports
* the database of previously received broadcasts at "content://cellbroadcasts/".
* The "android.permission.READ_CELL_BROADCASTS" permission is required to read
* from the ContentProvider, and writes to the database are not allowed.<p>
*
* Use {@link #createFromCursor} to create CellBroadcastMessage objects from rows
* in the database cursor returned by the ContentProvider.
*
* {@hide}
*/
public class CellBroadcastMessage implements Parcelable {
/** Identifier for getExtra() when adding this object to an Intent. */
public static final String SMS_CB_MESSAGE_EXTRA =
"com.android.cellbroadcastreceiver.SMS_CB_MESSAGE";
/** SmsCbMessage. */
private final SmsCbMessage mSmsCbMessage;
private final long mDeliveryTime;
private boolean mIsRead;
/**
* Indicates the subId
*
* @hide
*/
private int mSubId = 0;
/**
* set Subscription information
*
* @hide
*/
public void setSubId(int subId) {
mSubId = subId;
}
/**
* get Subscription information
*
* @hide
*/
public int getSubId() {
return mSubId;
}
public CellBroadcastMessage(SmsCbMessage message) {
mSmsCbMessage = message;
mDeliveryTime = System.currentTimeMillis();
mIsRead = false;
}
private CellBroadcastMessage(SmsCbMessage message, long deliveryTime, boolean isRead) {
mSmsCbMessage = message;
mDeliveryTime = deliveryTime;
mIsRead = isRead;
}
private CellBroadcastMessage(Parcel in) {
mSmsCbMessage = new SmsCbMessage(in);
mDeliveryTime = in.readLong();
mIsRead = (in.readInt() != 0);
}
/** Parcelable: no special flags. */
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Parcel out, int flags) {
mSmsCbMessage.writeToParcel(out, flags);
out.writeLong(mDeliveryTime);
out.writeInt(mIsRead ? 1 : 0);
}
public static final Parcelable.Creator<CellBroadcastMessage> CREATOR
= new Parcelable.Creator<CellBroadcastMessage>() {
@Override
public CellBroadcastMessage createFromParcel(Parcel in) {
return new CellBroadcastMessage(in);
}
@Override
public CellBroadcastMessage[] newArray(int size) {
return new CellBroadcastMessage[size];
}
};
/**
* Create a CellBroadcastMessage from a row in the database.
* @param cursor an open SQLite cursor pointing to the row to read
* @return the new CellBroadcastMessage
* @throws IllegalArgumentException if one of the required columns is missing
*/
public static CellBroadcastMessage createFromCursor(Cursor cursor) {
int geoScope = cursor.getInt(
cursor.getColumnIndexOrThrow(Telephony.CellBroadcasts.GEOGRAPHICAL_SCOPE));
int serialNum = cursor.getInt(
cursor.getColumnIndexOrThrow(Telephony.CellBroadcasts.SERIAL_NUMBER));
int category = cursor.getInt(
cursor.getColumnIndexOrThrow(Telephony.CellBroadcasts.SERVICE_CATEGORY));
String language = cursor.getString(
cursor.getColumnIndexOrThrow(Telephony.CellBroadcasts.LANGUAGE_CODE));
String body = cursor.getString(
cursor.getColumnIndexOrThrow(Telephony.CellBroadcasts.MESSAGE_BODY));
int format = cursor.getInt(
cursor.getColumnIndexOrThrow(Telephony.CellBroadcasts.MESSAGE_FORMAT));
int priority = cursor.getInt(
cursor.getColumnIndexOrThrow(Telephony.CellBroadcasts.MESSAGE_PRIORITY));
String plmn;
int plmnColumn = cursor.getColumnIndex(Telephony.CellBroadcasts.PLMN);
if (plmnColumn != -1 && !cursor.isNull(plmnColumn)) {
plmn = cursor.getString(plmnColumn);
} else {
plmn = null;
}
int lac;
int lacColumn = cursor.getColumnIndex(Telephony.CellBroadcasts.LAC);
if (lacColumn != -1 && !cursor.isNull(lacColumn)) {
lac = cursor.getInt(lacColumn);
} else {
lac = -1;
}
int cid;
int cidColumn = cursor.getColumnIndex(Telephony.CellBroadcasts.CID);
if (cidColumn != -1 && !cursor.isNull(cidColumn)) {
cid = cursor.getInt(cidColumn);
} else {
cid = -1;
}
SmsCbLocation location = new SmsCbLocation(plmn, lac, cid);
SmsCbEtwsInfo etwsInfo;
int etwsWarningTypeColumn = cursor.getColumnIndex(
Telephony.CellBroadcasts.ETWS_WARNING_TYPE);
if (etwsWarningTypeColumn != -1 && !cursor.isNull(etwsWarningTypeColumn)) {
int warningType = cursor.getInt(etwsWarningTypeColumn);
etwsInfo = new SmsCbEtwsInfo(warningType, false, false, null);
} else {
etwsInfo = null;
}
SmsCbCmasInfo cmasInfo;
int cmasMessageClassColumn = cursor.getColumnIndex(
Telephony.CellBroadcasts.CMAS_MESSAGE_CLASS);
if (cmasMessageClassColumn != -1 && !cursor.isNull(cmasMessageClassColumn)) {
int messageClass = cursor.getInt(cmasMessageClassColumn);
int cmasCategory;
int cmasCategoryColumn = cursor.getColumnIndex(
Telephony.CellBroadcasts.CMAS_CATEGORY);
if (cmasCategoryColumn != -1 && !cursor.isNull(cmasCategoryColumn)) {
cmasCategory = cursor.getInt(cmasCategoryColumn);
} else {
cmasCategory = SmsCbCmasInfo.CMAS_CATEGORY_UNKNOWN;
}
int responseType;
int cmasResponseTypeColumn = cursor.getColumnIndex(
Telephony.CellBroadcasts.CMAS_RESPONSE_TYPE);
if (cmasResponseTypeColumn != -1 && !cursor.isNull(cmasResponseTypeColumn)) {
responseType = cursor.getInt(cmasResponseTypeColumn);
} else {
responseType = SmsCbCmasInfo.CMAS_RESPONSE_TYPE_UNKNOWN;
}
int severity;
int cmasSeverityColumn = cursor.getColumnIndex(
Telephony.CellBroadcasts.CMAS_SEVERITY);
if (cmasSeverityColumn != -1 && !cursor.isNull(cmasSeverityColumn)) {
severity = cursor.getInt(cmasSeverityColumn);
} else {
severity = SmsCbCmasInfo.CMAS_SEVERITY_UNKNOWN;
}
int urgency;
int cmasUrgencyColumn = cursor.getColumnIndex(
Telephony.CellBroadcasts.CMAS_URGENCY);
if (cmasUrgencyColumn != -1 && !cursor.isNull(cmasUrgencyColumn)) {
urgency = cursor.getInt(cmasUrgencyColumn);
} else {
urgency = SmsCbCmasInfo.CMAS_URGENCY_UNKNOWN;
}
int certainty;
int cmasCertaintyColumn = cursor.getColumnIndex(
Telephony.CellBroadcasts.CMAS_CERTAINTY);
if (cmasCertaintyColumn != -1 && !cursor.isNull(cmasCertaintyColumn)) {
certainty = cursor.getInt(cmasCertaintyColumn);
} else {
certainty = SmsCbCmasInfo.CMAS_CERTAINTY_UNKNOWN;
}
cmasInfo = new SmsCbCmasInfo(messageClass, cmasCategory, responseType, severity,
urgency, certainty);
} else {
cmasInfo = null;
}
SmsCbMessage msg = new SmsCbMessage(format, geoScope, serialNum, location, category,
language, body, priority, etwsInfo, cmasInfo);
long deliveryTime = cursor.getLong(cursor.getColumnIndexOrThrow(
Telephony.CellBroadcasts.DELIVERY_TIME));
boolean isRead = (cursor.getInt(cursor.getColumnIndexOrThrow(
Telephony.CellBroadcasts.MESSAGE_READ)) != 0);
return new CellBroadcastMessage(msg, deliveryTime, isRead);
}
/**
* Return a ContentValues object for insertion into the database.
* @return a new ContentValues object containing this object's data
*/
public ContentValues getContentValues() {
ContentValues cv = new ContentValues(16);
SmsCbMessage msg = mSmsCbMessage;
cv.put(Telephony.CellBroadcasts.GEOGRAPHICAL_SCOPE, msg.getGeographicalScope());
SmsCbLocation location = msg.getLocation();
if (location.getPlmn() != null) {
cv.put(Telephony.CellBroadcasts.PLMN, location.getPlmn());
}
if (location.getLac() != -1) {
cv.put(Telephony.CellBroadcasts.LAC, location.getLac());
}
if (location.getCid() != -1) {
cv.put(Telephony.CellBroadcasts.CID, location.getCid());
}
cv.put(Telephony.CellBroadcasts.SERIAL_NUMBER, msg.getSerialNumber());
cv.put(Telephony.CellBroadcasts.SERVICE_CATEGORY, msg.getServiceCategory());
cv.put(Telephony.CellBroadcasts.LANGUAGE_CODE, msg.getLanguageCode());
cv.put(Telephony.CellBroadcasts.MESSAGE_BODY, msg.getMessageBody());
cv.put(Telephony.CellBroadcasts.DELIVERY_TIME, mDeliveryTime);
cv.put(Telephony.CellBroadcasts.MESSAGE_READ, mIsRead);
cv.put(Telephony.CellBroadcasts.MESSAGE_FORMAT, msg.getMessageFormat());
cv.put(Telephony.CellBroadcasts.MESSAGE_PRIORITY, msg.getMessagePriority());
SmsCbEtwsInfo etwsInfo = mSmsCbMessage.getEtwsWarningInfo();
if (etwsInfo != null) {
cv.put(Telephony.CellBroadcasts.ETWS_WARNING_TYPE, etwsInfo.getWarningType());
}
SmsCbCmasInfo cmasInfo = mSmsCbMessage.getCmasWarningInfo();
if (cmasInfo != null) {
cv.put(Telephony.CellBroadcasts.CMAS_MESSAGE_CLASS, cmasInfo.getMessageClass());
cv.put(Telephony.CellBroadcasts.CMAS_CATEGORY, cmasInfo.getCategory());
cv.put(Telephony.CellBroadcasts.CMAS_RESPONSE_TYPE, cmasInfo.getResponseType());
cv.put(Telephony.CellBroadcasts.CMAS_SEVERITY, cmasInfo.getSeverity());
cv.put(Telephony.CellBroadcasts.CMAS_URGENCY, cmasInfo.getUrgency());
cv.put(Telephony.CellBroadcasts.CMAS_CERTAINTY, cmasInfo.getCertainty());
}
return cv;
}
/**
* Set or clear the "read message" flag.
* @param isRead true if the message has been read; false if not
*/
public void setIsRead(boolean isRead) {
mIsRead = isRead;
}
public String getLanguageCode() {
return mSmsCbMessage.getLanguageCode();
}
public int getServiceCategory() {
return mSmsCbMessage.getServiceCategory();
}
public long getDeliveryTime() {
return mDeliveryTime;
}
public String getMessageBody() {
return mSmsCbMessage.getMessageBody();
}
public boolean isRead() {
return mIsRead;
}
public int getSerialNumber() {
return mSmsCbMessage.getSerialNumber();
}
public SmsCbCmasInfo getCmasWarningInfo() {
return mSmsCbMessage.getCmasWarningInfo();
}
public SmsCbEtwsInfo getEtwsWarningInfo() {
return mSmsCbMessage.getEtwsWarningInfo();
}
/**
* Return whether the broadcast is an emergency (PWS) message type.
* This includes lower priority test messages and Amber alerts.
*
* All public alerts show the flashing warning icon in the dialog,
* but only emergency alerts play the alert sound and speak the message.
*
* @return true if the message is PWS type; false otherwise
*/
public boolean isPublicAlertMessage() {
return mSmsCbMessage.isEmergencyMessage();
}
/**
* Returns whether the broadcast is an emergency (PWS) message type,
* including test messages and AMBER alerts.
*
* @return true if the message is PWS type (ETWS or CMAS)
*/
public boolean isEmergencyAlertMessage() {
return mSmsCbMessage.isEmergencyMessage();
}
/**
* Return whether the broadcast is an ETWS emergency message type.
* @return true if the message is ETWS emergency type; false otherwise
*/
public boolean isEtwsMessage() {
return mSmsCbMessage.isEtwsMessage();
}
/**
* Return whether the broadcast is a CMAS emergency message type.
* @return true if the message is CMAS emergency type; false otherwise
*/
public boolean isCmasMessage() {
return mSmsCbMessage.isCmasMessage();
}
/**
* Return the CMAS message class.
* @return the CMAS message class, e.g. {@link SmsCbCmasInfo#CMAS_CLASS_SEVERE_THREAT}, or
* {@link SmsCbCmasInfo#CMAS_CLASS_UNKNOWN} if this is not a CMAS alert
*/
public int getCmasMessageClass() {
if (mSmsCbMessage.isCmasMessage()) {
return mSmsCbMessage.getCmasWarningInfo().getMessageClass();
} else {
return SmsCbCmasInfo.CMAS_CLASS_UNKNOWN;
}
}
/**
* Return whether the broadcast is an ETWS popup alert.
* This method checks the message ID and the message code.
* @return true if the message indicates an ETWS popup alert
*/
public boolean isEtwsPopupAlert() {
SmsCbEtwsInfo etwsInfo = mSmsCbMessage.getEtwsWarningInfo();
return etwsInfo != null && etwsInfo.isPopupAlert();
}
/**
* Return whether the broadcast is an ETWS emergency user alert.
* This method checks the message ID and the message code.
* @return true if the message indicates an ETWS emergency user alert
*/
public boolean isEtwsEmergencyUserAlert() {
SmsCbEtwsInfo etwsInfo = mSmsCbMessage.getEtwsWarningInfo();
return etwsInfo != null && etwsInfo.isEmergencyUserAlert();
}
/**
* Return whether the broadcast is an ETWS test message.
* @return true if the message is an ETWS test message; false otherwise
*/
public boolean isEtwsTestMessage() {
SmsCbEtwsInfo etwsInfo = mSmsCbMessage.getEtwsWarningInfo();
return etwsInfo != null &&
etwsInfo.getWarningType() == SmsCbEtwsInfo.ETWS_WARNING_TYPE_TEST_MESSAGE;
}
/**
* Return the abbreviated date string for the message delivery time.
* @param context the context object
* @return a String to use in the broadcast list UI
*/
public String getDateString(Context context) {
int flags = DateUtils.FORMAT_NO_NOON_MIDNIGHT | DateUtils.FORMAT_SHOW_TIME |
DateUtils.FORMAT_ABBREV_ALL | DateUtils.FORMAT_SHOW_DATE |
DateUtils.FORMAT_CAP_AMPM;
return DateUtils.formatDateTime(context, mDeliveryTime, flags);
}
/**
* Return the date string for the message delivery time, suitable for text-to-speech.
* @param context the context object
* @return a String for populating the list item AccessibilityEvent for TTS
*/
public String getSpokenDateString(Context context) {
int flags = DateUtils.FORMAT_SHOW_TIME | DateUtils.FORMAT_SHOW_DATE;
return DateUtils.formatDateTime(context, mDeliveryTime, flags);
}
}
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