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/*
* Copyright (C) 2008 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.internal.telephony.cdma;
import android.app.PendingIntent;
import android.content.ContentValues;
import android.database.Cursor;
import android.database.SQLException;
import android.os.AsyncResult;
import android.os.Message;
import android.util.Config;
import android.util.Log;
import com.android.internal.telephony.SmsHeader;
import com.android.internal.telephony.SmsMessageBase;
import com.android.internal.telephony.SMSDispatcher;
import com.android.internal.telephony.cdma.SmsMessage;
import com.android.internal.telephony.cdma.sms.SmsEnvelope;
import com.android.internal.util.HexDump;
import java.io.ByteArrayOutputStream;
import java.util.ArrayList;
import java.util.HashMap;
final class CdmaSMSDispatcher extends SMSDispatcher {
private static final String TAG = "CDMA";
private CDMAPhone mCdmaPhone;
CdmaSMSDispatcher(CDMAPhone phone) {
super(phone);
mCdmaPhone = phone;
}
/**
* Called when a status report is received. This should correspond to
* a previously successful SEND.
* Is a special GSM function, should never be called in CDMA!!
*
* @param ar AsyncResult passed into the message handler. ar.result should
* be a String representing the status report PDU, as ASCII hex.
*/
protected void handleStatusReport(AsyncResult ar) {
Log.d(TAG, "handleStatusReport is a special GSM function, should never be called in CDMA!");
}
/**
* Dispatches an incoming SMS messages.
*
* @param smsb the incoming message from the phone
*/
protected void dispatchMessage(SmsMessageBase smsb) {
// If sms is null, means there was a parsing error.
// TODO: Should NAK this.
if (smsb == null) {
return;
}
// Decode BD stream and set sms variables.
SmsMessage sms = (SmsMessage) smsb;
sms.parseSms();
int teleService = sms.getTeleService();
boolean handled = false;
// Teleservices W(E)MT and VMN are handled together:
if ((teleService == SmsEnvelope.TELESERVICE_WMT)
|| (teleService == SmsEnvelope.TELESERVICE_WEMT)
|| (teleService == SmsEnvelope.TELESERVICE_VMN)) {
// From here on we need decoded BD.
// Special case the message waiting indicator messages
if (sms.isMWISetMessage()) {
mCdmaPhone.updateMessageWaitingIndicator(true);
handled |= sms.isMwiDontStore();
if (Config.LOGD) {
Log.d(TAG, "Received voice mail indicator set SMS shouldStore=" + !handled);
}
} else if (sms.isMWIClearMessage()) {
mCdmaPhone.updateMessageWaitingIndicator(false);
handled |= sms.isMwiDontStore();
if (Config.LOGD) {
Log.d(TAG, "Received voice mail indicator clear SMS shouldStore=" + !handled);
}
}
}
if (sms.getUserData() == null) {
if (Config.LOGD) {
Log.d(TAG, "Received SMS without user data");
}
handled = true;
}
if (handled) return;
if (SmsEnvelope.TELESERVICE_WAP == teleService){
processCdmaWapPdu(sms.getUserData(), sms.messageRef, sms.getOriginatingAddress());
return;
}
/**
* TODO(cleanup): Why are we using a getter method for this
* (and for so many other sms fields)? Trivial getters and
* setters like this are direct violations of the style guide.
* If the purpose is to protect agaist writes (by not
* providing a setter) then any protection is illusory (and
* hence bad) for cases where the values are not primitives,
* such as this call for the header. Since this is an issue
* with the public API it cannot be changed easily, but maybe
* something can be done eventually.
*/
SmsHeader smsHeader = sms.getUserDataHeader();
/**
* TODO(cleanup): Since both CDMA and GSM use the same header
* format, this dispatch processing is naturally identical,
* and code should probably not be replicated explicitly.
*/
// See if message is partial or port addressed.
if ((smsHeader == null) || (smsHeader.concatRef == null)) {
// Message is not partial (not part of concatenated sequence).
byte[][] pdus = new byte[1][];
pdus[0] = sms.getPdu();
if (smsHeader != null && smsHeader.portAddrs != null) {
if (smsHeader.portAddrs.destPort == SmsHeader.PORT_WAP_PUSH) {
// GSM-style WAP indication
mWapPush.dispatchWapPdu(sms.getUserData());
}
// The message was sent to a port, so concoct a URI for it.
dispatchPortAddressedPdus(pdus, smsHeader.portAddrs.destPort);
} else {
// Normal short and non-port-addressed message, dispatch it.
dispatchPdus(pdus);
}
} else {
// Process the message part.
processMessagePart(sms, smsHeader.concatRef, smsHeader.portAddrs);
}
}
/**
* Processes inbound messages that are in the WAP-WDP PDU format. See
* wap-259-wdp-20010614-a section 6.5 for details on the WAP-WDP PDU format.
* WDP segments are gathered until a datagram completes and gets dispatched.
*
* @param pdu The WAP-WDP PDU segment
*/
protected void processCdmaWapPdu(byte[] pdu, int referenceNumber, String address) {
int segment;
int totalSegments;
int index = 0;
int msgType;
int sourcePort;
int destinationPort;
msgType = pdu[index++];
if (msgType != 0){
Log.w(TAG, "Received a WAP SMS which is not WDP. Discard.");
return;
}
totalSegments = pdu[index++]; // >=1
segment = pdu[index++]; // >=0
//process WDP segment
sourcePort = (0xFF & pdu[index++]) << 8;
sourcePort |= 0xFF & pdu[index++];
destinationPort = (0xFF & pdu[index++]) << 8;
destinationPort |= 0xFF & pdu[index++];
// Lookup all other related parts
StringBuilder where = new StringBuilder("reference_number =");
where.append(referenceNumber);
where.append(" AND address = ?");
String[] whereArgs = new String[] {address};
Log.i(TAG, "Received WAP PDU. Type = " + msgType + ", originator = " + address
+ ", src-port = " + sourcePort + ", dst-port = " + destinationPort
+ ", ID = " + referenceNumber + ", segment# = " + segment + "/" + totalSegments);
byte[][] pdus = null;
Cursor cursor = null;
try {
cursor = mResolver.query(mRawUri, RAW_PROJECTION, where.toString(), whereArgs, null);
int cursorCount = cursor.getCount();
if (cursorCount != totalSegments - 1) {
// We don't have all the parts yet, store this one away
ContentValues values = new ContentValues();
values.put("date", new Long(0));
values.put("pdu", HexDump.toHexString(pdu, index, pdu.length - index));
values.put("address", address);
values.put("reference_number", referenceNumber);
values.put("count", totalSegments);
values.put("sequence", segment);
values.put("destination_port", destinationPort);
mResolver.insert(mRawUri, values);
return;
}
// All the parts are in place, deal with them
int pduColumn = cursor.getColumnIndex("pdu");
int sequenceColumn = cursor.getColumnIndex("sequence");
pdus = new byte[totalSegments][];
for (int i = 0; i < cursorCount; i++) {
cursor.moveToNext();
int cursorSequence = (int)cursor.getLong(sequenceColumn);
pdus[cursorSequence] = HexDump.hexStringToByteArray(
cursor.getString(pduColumn));
}
// The last part will be added later
// Remove the parts from the database
mResolver.delete(mRawUri, where.toString(), whereArgs);
} catch (SQLException e) {
Log.e(TAG, "Can't access multipart SMS database", e);
return; // TODO: NACK the message or something, don't just discard.
} finally {
if (cursor != null) cursor.close();
}
// Build up the data stream
ByteArrayOutputStream output = new ByteArrayOutputStream();
for (int i = 0; i < totalSegments-1; i++) {
// reassemble the (WSP-)pdu
output.write(pdus[i], 0, pdus[i].length);
}
// This one isn't in the DB, so add it
output.write(pdu, index, pdu.length - index);
byte[] datagram = output.toByteArray();
// Dispatch the PDU to applications
switch (destinationPort) {
case SmsHeader.PORT_WAP_PUSH:
// Handle the PUSH
mWapPush.dispatchWapPdu(datagram);
break;
default:{
pdus = new byte[1][];
pdus[0] = datagram;
// The messages were sent to any other WAP port
dispatchPortAddressedPdus(pdus, destinationPort);
break;
}
}
}
/** {@inheritDoc} */
protected void sendMultipartText(String destAddr, String scAddr,
ArrayList<String> parts, ArrayList<PendingIntent> sentIntents,
ArrayList<PendingIntent> deliveryIntents) {
/**
* TODO(cleanup): There is no real code difference between
* this and the GSM version, and hence it should be moved to
* the base class or consolidated somehow, provided calling
* the proper submitpdu stuff can be arranged.
*/
int refNumber = getNextConcatenatedRef() & 0x00FF;
for (int i = 0, msgCount = parts.size(); i < msgCount; i++) {
SmsHeader.ConcatRef concatRef = new SmsHeader.ConcatRef();
concatRef.refNumber = refNumber;
concatRef.seqNumber = i + 1; // 1-based sequence
concatRef.msgCount = msgCount;
concatRef.isEightBits = true;
SmsHeader smsHeader = new SmsHeader();
smsHeader.concatRef = concatRef;
PendingIntent sentIntent = null;
if (sentIntents != null && sentIntents.size() > i) {
sentIntent = sentIntents.get(i);
}
PendingIntent deliveryIntent = null;
if (deliveryIntents != null && deliveryIntents.size() > i) {
deliveryIntent = deliveryIntents.get(i);
}
SmsMessage.SubmitPdu submitPdu = SmsMessage.getSubmitPdu(scAddr, destAddr,
parts.get(i), deliveryIntent != null, smsHeader);
sendSubmitPdu(submitPdu, sentIntent, deliveryIntent);
}
}
protected void sendSubmitPdu(SmsMessage.SubmitPdu submitPdu, PendingIntent sentIntent,
PendingIntent deliveryIntent) {
sendRawPdu(submitPdu.encodedScAddress, submitPdu.encodedMessage,
sentIntent, deliveryIntent);
}
/** {@inheritDoc} */
protected void sendSms(SmsTracker tracker) {
HashMap map = tracker.mData;
byte smsc[] = (byte[]) map.get("smsc");
byte pdu[] = (byte[]) map.get("pdu");
Message reply = obtainMessage(EVENT_SEND_SMS_COMPLETE, tracker);
mCm.sendCdmaSms(pdu, reply);
}
/** {@inheritDoc} */
protected void sendMultipartSms (SmsTracker tracker) {
Log.d(TAG, "TODO: CdmaSMSDispatcher.sendMultipartSms not implemented");
}
/** {@inheritDoc} */
protected void acknowledgeLastIncomingSms(boolean success, Message response){
// FIXME unit test leaves cm == null. this should change
if (mCm != null) {
mCm.acknowledgeLastIncomingCdmaSms(success, response);
}
}
/** {@inheritDoc} */
protected void activateCellBroadcastSms(int activate, Message response) {
mCm.activateCdmaBroadcastSms(activate, response);
}
/** {@inheritDoc} */
protected void getCellBroadcastSmsConfig(Message response) {
mCm.getCdmaBroadcastConfig(response);
}
/** {@inheritDoc} */
protected void setCellBroadcastConfig(int[] configValuesArray, Message response) {
mCm.setCdmaBroadcastConfig(configValuesArray, response);
}
}