public bool removeMessage(Friend friend, byte[] msg_id)
{
lock (pendingRecipients)
{
PendingRecipient pending_recipient = pendingRecipients.Find(x => x.address.SequenceEqual(friend.walletAddress));
if (pending_recipient != null)
{
PendingMessageHeader tmp_msg_header = pending_recipient.messageQueue.Find(x => x.id.SequenceEqual(msg_id));
if (tmp_msg_header != null)
{
pending_recipient.messageQueue.Remove(tmp_msg_header);
if (File.Exists(tmp_msg_header.filePath))
{
File.Delete(tmp_msg_header.filePath);
return(true);
}
}
}
return(false);
}
}
private void sendMessage(OffloadedMessage om)
{
PendingMessage pm = new PendingMessage(om.msg, om.sendToServer, om.sendPushNotification, om.removeAfterSending);
StreamMessage msg = pm.streamMessage;
PendingMessageHeader tmp_msg_header = tmp_msg_header = getPendingMessageHeader(om.friend, msg.id);
if (tmp_msg_header != null)
{
pm.filePath = tmp_msg_header.filePath;
}
PendingRecipient tmp_recipient = null;
lock (pendingRecipients)
{
tmp_recipient = pendingRecipients.Find(x => x.address.SequenceEqual(msg.recipient));
if (tmp_recipient == null)
{
tmp_recipient = new PendingRecipient(msg.recipient);
pendingRecipients.Add(tmp_recipient);
}
}
if (om.addToPendingMessages)
{
pm.save(storagePath);
if (tmp_msg_header == null)
{
tmp_recipient.messageQueue.Add(new PendingMessageHeader()
{
filePath = pm.filePath, id = pm.streamMessage.id, sendToServer = pm.sendToServer
});
}
}
if (tmp_recipient.messageQueue.Count == 1 || !om.addToPendingMessages)
{
sendMessage(om.friend, pm, om.addToPendingMessages);
}
}
private bool sendMessage(Friend friend, PendingMessage pending_message, bool add_to_pending_messages = true)
{
StreamMessage msg = pending_message.streamMessage;
bool send_to_server = pending_message.sendToServer;
bool send_push_notification = pending_message.sendPushNotification;
// TODO this function has to be improved and node's wallet address has to be added
if (friend.publicKey != null || (msg.encryptionType != StreamMessageEncryptionCode.rsa && friend.aesKey != null && friend.chachaKey != null))
{
if (msg.encryptionType == StreamMessageEncryptionCode.none)
{
if (friend.aesKey != null && friend.chachaKey != null)
{
// upgrade encryption type
msg.encryptionType = StreamMessageEncryptionCode.spixi1;
}
else if (!friend.bot)
{
// upgrade encryption type
msg.encryptionType = StreamMessageEncryptionCode.rsa;
}
}
if (msg.encryptionType != StreamMessageEncryptionCode.none)
{
if (msg.version == 0 && msg.encryptionType == StreamMessageEncryptionCode.rsa && !msg.encrypted)
{
msg.sign(IxianHandler.getWalletStorage().getPrimaryPrivateKey());
}
if (!msg.encrypt(friend.publicKey, friend.aesKey, friend.chachaKey))
{
Logging.warn("Could not encrypt message for {0}!", Base58Check.Base58CheckEncoding.EncodePlain(msg.recipient));
return(false);
}
if (msg.version > 0 && msg.encryptionType == StreamMessageEncryptionCode.rsa)
{
msg.sign(IxianHandler.getWalletStorage().getPrimaryPrivateKey());
}
}
}
else if (msg.encryptionType != StreamMessageEncryptionCode.none)
{
if (friend.publicKey == null)
{
byte[] pub_k = FriendList.findContactPubkey(friend.walletAddress);
friend.setPublicKey(pub_k);
}
if (!friend.bot)
{
Logging.warn("Could not send message to {0}, due to missing encryption keys!", Base58Check.Base58CheckEncoding.EncodePlain(msg.recipient));
// Return true in case it has other messages in the queue that need to be processed and aren't encrypted
return(true);
}
else
{
// TODO TODO TODO perhaps it would be better to discard such message and notify the user
Logging.warn("Tried sending encrypted message of type {0} without encryption keys to {1}, which is a bot, changing message encryption type to none!", msg.type, Base58Check.Base58CheckEncoding.EncodePlain(msg.recipient));
msg.encryptionType = StreamMessageEncryptionCode.none;
}
}
bool sent = false;
string hostname = friend.searchForRelay(); // TODO cuckoo filter should be used instead, need to check the performance when PL is big
if (friend.online)
{
if (hostname != "" && hostname != null)
{
StreamClientManager.connectTo(hostname, null); // TODO replace null with node address
sent = StreamClientManager.sendToClient(hostname, ProtocolMessageCode.s2data, msg.getBytes(), msg.id);
if (sent && pending_message.removeAfterSending)
{
removeMessage(friend, pending_message.streamMessage.id);
}
}
}
if (friend.forcePush || !friend.online || !sent)
{
if (send_to_server)
{
send_to_server = Config.enablePushNotifications;
if (friend.bot)
{
send_to_server = false;
send_push_notification = false;
}
}
if (send_to_server)
{
if (OfflinePushMessages.sendPushMessage(msg, send_push_notification))
{
pending_message.sendToServer = false;
if (add_to_pending_messages)
{
pending_message.save(storagePath);
}
PendingMessageHeader tmp_msg_header = getPendingMessageHeader(friend, pending_message.streamMessage.id);
if (tmp_msg_header != null)
{
tmp_msg_header.sendToServer = false;
}
if (pending_message.removeAfterSending)
{
removeMessage(friend, pending_message.streamMessage.id);
}
return(true);
}
}
return(false);
}
return(true);
/* string pub_k = FriendList.findContactPubkey(msg.recipientAddress);
* if (pub_k.Length < 1)
* {
* Console.WriteLine("Contact {0} not found, adding to offline queue!", msg.recipientAddress);
* addOfflineMessage(msg);
* return;
* }
*
*
* // Create a new IXIAN transaction
* // byte[] checksum = Crypto.sha256(encrypted_message);
* Transaction transaction = new Transaction(0, msg.recipientAddress, Node.walletStorage.address);
* // transaction.data = Encoding.UTF8.GetString(checksum);
* msg.transactionID = transaction.id;
* //ProtocolMessage.broadcastProtocolMessage(ProtocolMessageCode.newTransaction, transaction.getBytes());
*
* // Add message to the queue
* messages.Add(msg);
*
* // Request a new keypair from the S2 Node
* if(hostname == null)
* ProtocolMessage.broadcastProtocolMessage(ProtocolMessageCode.s2generateKeys, Encoding.UTF8.GetBytes(msg.getID()));
* else
* {
* NetworkClientManager.sendData(ProtocolMessageCode.s2generateKeys, Encoding.UTF8.GetBytes(msg.getID()), hostname);
* }*/
}