private void confirmMessagePart(String number, int pos) {
Log.i(TAG, number + " " + pos);
MessageConfirmation confirmation = partialConfs.get(number).get(pos);
if (confirmation.getMessageParts() > 0)
confirmation.setMessageParts(confirmation.getMessageParts() - 1);
if (confirmation.getMessageParts() == 0) {
String time = DateUtils.buildDate();
if (!confirmTimes.containsKey(number))
confirmTimes.put(number, new TreeMap<Integer, String>());
confirmTimes.get(number).put(pos, time);
dbUtils.confirmMessageSent(time, confirmation.getMessageId());
Log.i(TAG, "confirmMessagePart Processing status " + processingStatus);
partialConfs.get(number).remove(pos);
processingStatus--;
Log.i(TAG, "confirmMessagePart Processing status " + processingStatus);
if (ConversationActivity.isActive() && ConversationActivity.currentNumber().equals(number)) {
Intent in = new Intent(this, ConversationActivity.class);
in.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
in.putExtra(EncrypText.THREAD_POSITION, pos);
in.putExtra(EncrypText.TIME, time);
startActivity(in);
} else if (!ConversationActivity.isActive()
&& ConversationActivity.currentNumber().equals(number))
ConversationActivity.markNewConfs();
}
}
public synchronized void sendMessage(ConversationEntry item, int place, Key key) {
String address = item.getNumber();
if (!currentConv.equals(address)) {
sequenceNo = 0;
currentConv = address;
}
byte[] encryptedMessage;
try {
encryptedMessage =
cryptor.encryptMessage(item.getMessage().getBytes(), (SecretKey) key, sequenceNo);
} catch (InvalidKeyException
| BadPaddingException
| IllegalBlockSizeException
| InvalidAlgorithmParameterException e) {
Log.e(TAG, "While encrypting message", e);
Toast.makeText(this, "Encryption error while sending message", Toast.LENGTH_SHORT).show();
return;
}
double packets = encryptedMessage.length / (double) (MAX_DATA_BYTES - HEADER_SIZE);
if (packets % 1 != 0) // making sure to round up to next whole packet
packets = (int) packets + 1;
byte[][] message = new byte[(int) packets][MAX_DATA_BYTES];
int k = 0;
for (int pdu = 0; pdu < packets; pdu++) {
// 2 for AES
message[pdu][0] = 2;
// message sequence number - session based - can only send 127 messages per session
if (sequenceNo > 127) return;
else {
message[pdu][1] = (byte) sequenceNo;
}
message[pdu][2] = (byte) packets;
message[pdu][3] = (byte) pdu;
for (int j = 4; j < MAX_DATA_BYTES && k < encryptedMessage.length; j++) {
message[pdu][j] = encryptedMessage[k];
k++;
}
}
long messageId = dbUtils.storeMessage(item);
// long pos = manager.writeSMS(address, item, -1, this);
setupMessageConfirmation(address, place, messageId, message.length);
for (byte[] pdu : message) {
Intent in = new Intent(SENT_INTENT);
in.putExtra(EncrypText.THREAD_POSITION, place);
in.putExtra(EncrypText.ADDRESS, address);
PendingIntent sent =
PendingIntent.getBroadcast(this, 0, in, PendingIntent.FLAG_UPDATE_CURRENT);
mgr.sendDataMessage(address, null, APPLICATION_PORT, pdu, sent, null);
}
sequenceNo++; // next sequence number
}