// Retrieve the transaction from local cache storage
private void checkTransaction()
{
string confirmed_text = "CONFIRMED";
Transaction ctransaction = TransactionCache.getTransaction(transaction.id);
if (ctransaction == null || ctransaction.applied == 0)
{
ctransaction = transaction;
confirmed_text = "UNCONFIRMED";
}
IxiNumber amount = ctransaction.amount;
// Convert unix timestamp
string time = Utils.UnixTimeStampToString(Convert.ToDouble(ctransaction.timeStamp));
byte[] addr = new Address(ctransaction.pubKey).address;
if (addr.SequenceEqual(Node.walletStorage.getPrimaryAddress()))
{
// this is a sent payment
foreach (var entry in ctransaction.toList)
{
Friend friend = FriendList.getFriend(entry.Key);
if (friend != null)
{
Utils.sendUiCommand(webView, "addSender", friend.nickname + ": " + entry.Value.ToString(), time);
}
else
{
Utils.sendUiCommand(webView, "addSender", Base58Check.Base58CheckEncoding.EncodePlain(entry.Key) + ": " + entry.Value.ToString(), time);
}
}
}
else
{
// this is a received payment
amount = 0;
Utils.sendUiCommand(webView, "setReceivedMode");
byte[] sender_address = new Address(ctransaction.pubKey).address;
Friend friend = FriendList.getFriend(sender_address);
if (friend != null)
{
Utils.sendUiCommand(webView, "addSender", friend.nickname, time);
}
else
{
Utils.sendUiCommand(webView, "addSender", Base58Check.Base58CheckEncoding.EncodePlain(sender_address), time);
}
foreach (var entry in ctransaction.toList)
{
if (IxianHandler.getWalletStorage().isMyAddress(entry.Key))
{
// TODO show this as well under sent to; also do the reverse for sent payment
//addresses += Base58Check.Base58CheckEncoding.EncodePlain(entry.Key) + ": " + entry.Value.ToString() + "|";
amount += entry.Value;
}
}
}
Utils.sendUiCommand(webView, "setData", amount.ToString(), ctransaction.fee.ToString(),
time, confirmed_text, (ctransaction.fee / ctransaction.amount).ToString() + "%", transaction.id);
return;
}
// Unified protocol message parsing
public static void parseProtocolMessage(ProtocolMessageCode code, byte[] data, RemoteEndpoint endpoint)
{
if (endpoint == null)
{
Logging.error("Endpoint was null. parseProtocolMessage");
return;
}
try
{
switch (code)
{
case ProtocolMessageCode.hello:
{
using (MemoryStream m = new MemoryStream(data))
{
using (BinaryReader reader = new BinaryReader(m))
{
if (CoreProtocolMessage.processHelloMessage(endpoint, reader))
{
byte[] challenge_response = null;
int challenge_len = reader.ReadInt32();
byte[] challenge = reader.ReadBytes(challenge_len);
challenge_response = CryptoManager.lib.getSignature(challenge, IxianHandler.getWalletStorage().getPrimaryPrivateKey());
CoreProtocolMessage.sendHelloMessage(endpoint, true, challenge_response);
endpoint.helloReceived = true;
return;
}
}
}
}
break;
case ProtocolMessageCode.helloData:
using (MemoryStream m = new MemoryStream(data))
{
using (BinaryReader reader = new BinaryReader(m))
{
if (!CoreProtocolMessage.processHelloMessage(endpoint, reader))
{
return;
}
ulong last_block_num = reader.ReadUInt64();
int bcLen = reader.ReadInt32();
byte[] block_checksum = reader.ReadBytes(bcLen);
int wsLen = reader.ReadInt32();
byte[] walletstate_checksum = reader.ReadBytes(wsLen);
int consensus = reader.ReadInt32(); // deprecated
endpoint.blockHeight = last_block_num;
int block_version = reader.ReadInt32();
// Check for legacy level
ulong legacy_level = reader.ReadUInt64(); // deprecated
int challenge_response_len = reader.ReadInt32();
byte[] challenge_response = reader.ReadBytes(challenge_response_len);
if (!CryptoManager.lib.verifySignature(endpoint.challenge, endpoint.serverPubKey, challenge_response))
{
CoreProtocolMessage.sendBye(endpoint, ProtocolByeCode.authFailed, string.Format("Invalid challenge response."), "", true);
return;
}
ulong highest_block_height = IxianHandler.getHighestKnownNetworkBlockHeight();
if (last_block_num + 10 < highest_block_height)
{
CoreProtocolMessage.sendBye(endpoint, ProtocolByeCode.tooFarBehind, string.Format("Your node is too far behind, your block height is {0}, highest network block height is {1}.", last_block_num, highest_block_height), highest_block_height.ToString(), true);
return;
}
// Process the hello data
endpoint.helloReceived = true;
NetworkClientManager.recalculateLocalTimeDifference();
if (endpoint.presenceAddress.type == 'R')
{
string[] connected_servers = StreamClientManager.getConnectedClients(true);
if (connected_servers.Count() == 1 || !connected_servers.Contains(StreamClientManager.primaryS2Address))
{
if (StreamClientManager.primaryS2Address == "")
{
FriendList.requestAllFriendsPresences();
}
// TODO set the primary s2 host more efficiently, perhaps allow for multiple s2 primary hosts
StreamClientManager.primaryS2Address = endpoint.getFullAddress(true);
// TODO TODO do not set if directly connectable
IxianHandler.publicIP = endpoint.address;
IxianHandler.publicPort = endpoint.incomingPort;
PresenceList.forceSendKeepAlive = true;
Logging.info("Forcing KA from networkprotocol");
}
}
else if (endpoint.presenceAddress.type == 'C')
{
Friend f = FriendList.getFriend(endpoint.presence.wallet);
if (f != null && f.bot)
{
StreamProcessor.sendGetMessages(f);
}
}
if (endpoint.presenceAddress.type == 'M')
{
Node.setNetworkBlock(last_block_num, block_checksum, block_version);
// Get random presences
endpoint.sendData(ProtocolMessageCode.getRandomPresences, new byte[1] {
(byte)'R'
});
endpoint.sendData(ProtocolMessageCode.getRandomPresences, new byte[1] {
(byte)'M'
});
subscribeToEvents(endpoint);
}
}
}
break;
case ProtocolMessageCode.s2data:
{
StreamProcessor.receiveData(data, endpoint);
}
break;
case ProtocolMessageCode.updatePresence:
{
Logging.info("NET: Receiving presence list update");
// Parse the data and update entries in the presence list
Presence p = PresenceList.updateFromBytes(data);
}
break;
case ProtocolMessageCode.keepAlivePresence:
{
byte[] address = null;
bool updated = PresenceList.receiveKeepAlive(data, out address, endpoint);
}
break;
case ProtocolMessageCode.getPresence:
{
using (MemoryStream m = new MemoryStream(data))
{
using (BinaryReader reader = new BinaryReader(m))
{
int walletLen = reader.ReadInt32();
byte[] wallet = reader.ReadBytes(walletLen);
Presence p = PresenceList.getPresenceByAddress(wallet);
if (p != null)
{
lock (p)
{
byte[][] presence_chunks = p.getByteChunks();
foreach (byte[] presence_chunk in presence_chunks)
{
endpoint.sendData(ProtocolMessageCode.updatePresence, presence_chunk, null);
}
}
}
else
{
// TODO blacklisting point
Logging.warn(string.Format("Node has requested presence information about {0} that is not in our PL.", Base58Check.Base58CheckEncoding.EncodePlain(wallet)));
}
}
}
}
break;
case ProtocolMessageCode.balance:
{
using (MemoryStream m = new MemoryStream(data))
{
using (BinaryReader reader = new BinaryReader(m))
{
int address_length = reader.ReadInt32();
byte[] address = reader.ReadBytes(address_length);
// Retrieve the latest balance
IxiNumber balance = reader.ReadString();
if (address.SequenceEqual(Node.walletStorage.getPrimaryAddress()))
{
// Retrieve the blockheight for the balance
ulong block_height = reader.ReadUInt64();
if (block_height > Node.balance.blockHeight && (Node.balance.balance != balance || Node.balance.blockHeight == 0))
{
byte[] block_checksum = reader.ReadBytes(reader.ReadInt32());
Node.balance.address = address;
Node.balance.balance = balance;
Node.balance.blockHeight = block_height;
Node.balance.blockChecksum = block_checksum;
Node.balance.lastUpdate = Clock.getTimestamp();
Node.balance.verified = false;
}
}
}
}
}
break;
case ProtocolMessageCode.newTransaction:
case ProtocolMessageCode.transactionData:
{
// TODO: check for errors/exceptions
Transaction transaction = new Transaction(data, true);
PendingTransactions.increaseReceivedCount(transaction.id);
TransactionCache.addUnconfirmedTransaction(transaction);
Node.tiv.receivedNewTransaction(transaction);
}
break;
case ProtocolMessageCode.bye:
{
using (MemoryStream m = new MemoryStream(data))
{
using (BinaryReader reader = new BinaryReader(m))
{
endpoint.stop();
bool byeV1 = false;
try
{
ProtocolByeCode byeCode = (ProtocolByeCode)reader.ReadInt32();
string byeMessage = reader.ReadString();
string byeData = reader.ReadString();
byeV1 = true;
switch (byeCode)
{
case ProtocolByeCode.bye: // all good
break;
case ProtocolByeCode.forked: // forked node disconnected
Logging.info(string.Format("Disconnected with message: {0} {1}", byeMessage, byeData));
break;
case ProtocolByeCode.deprecated: // deprecated node disconnected
Logging.info(string.Format("Disconnected with message: {0} {1}", byeMessage, byeData));
break;
case ProtocolByeCode.incorrectIp: // incorrect IP
if (IxiUtils.validateIPv4(byeData))
{
if (NetworkClientManager.getConnectedClients(true).Length < 2)
{
// TODO TODO do not set if not directly connectable
IxianHandler.publicIP = byeData;
Logging.info("Changed internal IP Address to " + byeData + ", reconnecting");
}
}
break;
case ProtocolByeCode.notConnectable: // not connectable from the internet
Logging.error("This node must be connectable from the internet, to connect to the network.");
Logging.error("Please setup uPNP and/or port forwarding on your router for port " + IxianHandler.publicPort + ".");
NetworkServer.connectable = false;
break;
default:
Logging.warn(string.Format("Disconnected with message: {0} {1}", byeMessage, byeData));
break;
}
}
catch (Exception)
{
}
if (byeV1)
{
return;
}
reader.BaseStream.Seek(0, SeekOrigin.Begin);
// Retrieve the message
string message = reader.ReadString();
if (message.Length > 0)
{
Logging.info(string.Format("Disconnected with message: {0}", message));
}
else
{
Logging.info("Disconnected");
}
}
}
}
break;
case ProtocolMessageCode.blockHeaders:
{
// Forward the block headers to the TIV handler
Node.tiv.receivedBlockHeaders(data, endpoint);
}
break;
case ProtocolMessageCode.pitData:
{
Node.tiv.receivedPIT(data, endpoint);
}
break;
default:
break;
}
}
catch (Exception e)
{
Logging.error(string.Format("Error parsing network message. Details: {0}", e.ToString()));
}
if (waitingFor == code)
{
blocked = false;
}
}
// Start the node
static public void start(bool verboseConsoleOutput)
{
// First create the data folder if it does not already exist
checkDataFolder();
renameStorageFiles(); // this function will be here temporarily for the next few version, then it will be removed to keep a cleaner code base
// debug
if (Config.networkDumpFile != "")
{
NetDump.Instance.start(Config.networkDumpFile);
}
NetworkUtils.configureNetwork();
char node_type = 'M'; // TODO TODO TODO TODO change this to 'W' or 'C' after the upgrade
if (Config.disableMiner)
{
node_type = 'M';
}
// Check if we're in worker-only mode
if (Config.workerOnly)
{
// Enable miner
Config.disableMiner = false;
node_type = 'W';
CoreConfig.simultaneousConnectedNeighbors = 4;
}
// Generate presence list
PresenceList.generatePresenceList(Config.publicServerIP, node_type);
// Initialize storage
Storage.prepareStorage();
ActivityStorage.prepareStorage();
// Initialize the block chain
blockChain = new BlockChain();
//runDiffTests();
//return;
// Create the block processor and sync
blockProcessor = new BlockProcessor();
blockSync = new BlockSync();
// Start the HTTP JSON API server
apiServer = new APIServer();
if (IXICore.Platform.onMono() == false && !Config.disableWebStart)
{
System.Diagnostics.Process.Start("http://localhost:" + Config.apiPort);
}
miner = new Miner();
// Start the network queue
NetworkQueue.start();
// prepare stats screen
Config.verboseConsoleOutput = verboseConsoleOutput;
Logging.consoleOutput = verboseConsoleOutput;
Logging.flush();
if (Config.verboseConsoleOutput == false)
{
statsConsoleScreen.clearScreen();
}
// Distribute genesis funds
IxiNumber genesisFunds = new IxiNumber(Config.genesisFunds);
// Check if this is a genesis node
if (genesisFunds > (long)0)
{
Logging.info(String.Format("Genesis {0} specified. Starting operation.", genesisFunds));
distributeGenesisFunds(genesisFunds);
genesisNode = true;
blockProcessor.resumeOperation();
serverStarted = true;
if (!isMasterNode())
{
Logging.info("Network server is not enabled in modes other than master node.");
}
else
{
NetworkServer.beginNetworkOperations();
}
}
else
{
if (File.Exists(Config.genesisFile))
{
Block genesis = new Block(Crypto.stringToHash(File.ReadAllText(Config.genesisFile)));
blockChain.setGenesisBlock(genesis);
}
ulong lastLocalBlockNum = Meta.Storage.getLastBlockNum();
if (lastLocalBlockNum > 6)
{
lastLocalBlockNum = lastLocalBlockNum - 6;
}
if (Config.lastGoodBlock > 0 && Config.lastGoodBlock < lastLocalBlockNum)
{
lastLocalBlockNum = Config.lastGoodBlock;
}
if (lastLocalBlockNum > 0)
{
Block b = blockChain.getBlock(lastLocalBlockNum, true);
if (b != null)
{
CoreConfig.minRedactedWindowSize = CoreConfig.getRedactedWindowSize(b.version);
CoreConfig.redactedWindowSize = CoreConfig.getRedactedWindowSize(b.version);
}
}
if (Config.recoverFromFile)
{
Block b = Meta.Storage.getBlock(lastLocalBlockNum);
blockSync.onHelloDataReceived(b.blockNum, b.blockChecksum, b.version, b.walletStateChecksum, b.getUniqueSignatureCount(), lastLocalBlockNum);
}
else
{
ulong blockNum = WalletStateStorage.restoreWalletState(lastLocalBlockNum);
if (blockNum > 0)
{
Block b = blockChain.getBlock(blockNum, true);
if (b != null)
{
blockSync.onHelloDataReceived(blockNum, b.blockChecksum, b.version, b.walletStateChecksum, b.getUniqueSignatureCount(), lastLocalBlockNum);
}
else
{
walletState.clear();
}
}
else
{
blockSync.lastBlockToReadFromStorage = lastLocalBlockNum;
}
// Start the server for ping purposes
serverStarted = true;
if (!isMasterNode())
{
Logging.info("Network server is not enabled in modes other than master node.");
}
else
{
NetworkServer.beginNetworkOperations();
}
// Start the network client manager
NetworkClientManager.start();
}
}
PresenceList.startKeepAlive();
TLC = new ThreadLiveCheck();
// Start the maintenance thread
maintenanceThread = new Thread(performMaintenance);
maintenanceThread.Name = "Node_Maintenance_Thread";
maintenanceThread.Start();
}
// Unified protocol message parsing
public static void parseProtocolMessage(ProtocolMessageCode code, byte[] data, RemoteEndpoint endpoint)
{
if (endpoint == null)
{
Logging.error("Endpoint was null. parseProtocolMessage");
return;
}
try
{
switch (code)
{
case ProtocolMessageCode.hello:
using (MemoryStream m = new MemoryStream(data))
{
using (BinaryReader reader = new BinaryReader(m))
{
if (CoreProtocolMessage.processHelloMessage(endpoint, reader))
{
CoreProtocolMessage.sendHelloMessage(endpoint, true);
endpoint.helloReceived = true;
return;
}
}
}
break;
case ProtocolMessageCode.helloData:
using (MemoryStream m = new MemoryStream(data))
{
using (BinaryReader reader = new BinaryReader(m))
{
if (CoreProtocolMessage.processHelloMessage(endpoint, reader))
{
ulong last_block_num = reader.ReadUInt64();
int bcLen = reader.ReadInt32();
byte[] block_checksum = reader.ReadBytes(bcLen);
int wsLen = reader.ReadInt32();
byte[] walletstate_checksum = reader.ReadBytes(wsLen);
int consensus = reader.ReadInt32();
endpoint.blockHeight = last_block_num;
int block_version = reader.ReadInt32();
Node.setLastBlock(last_block_num, block_checksum, walletstate_checksum, block_version);
Node.setRequiredConsensus(consensus);
// Check for legacy level
ulong legacy_level = reader.ReadUInt64();
// Check for legacy node
if (Legacy.isLegacy(legacy_level))
{
// TODO TODO TODO TODO check this out
//endpoint.setLegacy(true);
}
// Process the hello data
endpoint.helloReceived = true;
NetworkClientManager.recalculateLocalTimeDifference();
}
}
}
break;
case ProtocolMessageCode.s2data:
{
StreamProcessor.receiveData(data, endpoint);
}
break;
case ProtocolMessageCode.s2failed:
{
using (MemoryStream m = new MemoryStream(data))
{
using (BinaryReader reader = new BinaryReader(m))
{
Logging.error("Failed to send s2 data");
}
}
}
break;
case ProtocolMessageCode.s2signature:
{
StreamProcessor.receivedTransactionSignature(data, endpoint);
}
break;
case ProtocolMessageCode.newTransaction:
{
// Forward the new transaction message to the DLT network
CoreProtocolMessage.broadcastProtocolMessage(new char[] { 'M', 'H' }, ProtocolMessageCode.newTransaction, data, null);
}
break;
case ProtocolMessageCode.syncPresenceList:
{
byte[] pdata = PresenceList.getBytes();
byte[] ba = CoreProtocolMessage.prepareProtocolMessage(ProtocolMessageCode.presenceList, pdata);
endpoint.sendData(ProtocolMessageCode.presenceList, pdata);
}
break;
case ProtocolMessageCode.presenceList:
{
Logging.info("Receiving complete presence list");
PresenceList.syncFromBytes(data);
}
break;
case ProtocolMessageCode.updatePresence:
{
// Parse the data and update entries in the presence list
PresenceList.updateFromBytes(data);
}
break;
case ProtocolMessageCode.keepAlivePresence:
{
byte[] address = null;
bool updated = PresenceList.receiveKeepAlive(data, out address);
// If a presence entry was updated, broadcast this message again
if (updated)
{
CoreProtocolMessage.broadcastProtocolMessage(new char[] { 'M', 'R', 'H', 'W' }, ProtocolMessageCode.keepAlivePresence, data, address, endpoint);
// Send this keepalive message to all connected clients
CoreProtocolMessage.broadcastEventDataMessage(NetworkEvents.Type.keepAlive, address, ProtocolMessageCode.keepAlivePresence, data, address, endpoint);
}
}
break;
case ProtocolMessageCode.getPresence:
{
using (MemoryStream m = new MemoryStream(data))
{
using (BinaryReader reader = new BinaryReader(m))
{
int walletLen = reader.ReadInt32();
byte[] wallet = reader.ReadBytes(walletLen);
lock (PresenceList.presences)
{
// TODO re-verify this
Presence p = PresenceList.presences.Find(x => x.wallet.SequenceEqual(wallet));
if (p != null)
{
byte[][] presence_chunks = p.getByteChunks();
int i = 0;
foreach (byte[] presence_chunk in presence_chunks)
{
endpoint.sendData(ProtocolMessageCode.updatePresence, presence_chunk);
i++;
}
}
else
{
// TODO blacklisting point
Logging.warn(string.Format("Node has requested presence information about {0} that is not in our PL.", Base58Check.Base58CheckEncoding.EncodePlain(wallet)));
}
}
}
}
}
break;
case ProtocolMessageCode.balance:
{
// TODO: make sure this is received from a DLT node only.
using (MemoryStream m = new MemoryStream(data))
{
using (BinaryReader reader = new BinaryReader(m))
{
int address_length = reader.ReadInt32();
byte[] address = reader.ReadBytes(address_length);
// Retrieve the latest balance
IxiNumber balance = reader.ReadString();
if (address.SequenceEqual(Node.walletStorage.getPrimaryAddress()))
{
Node.balance = balance;
}
// Retrieve the blockheight for the balance
ulong blockheight = reader.ReadUInt64();
Node.blockHeight = blockheight;
}
}
}
break;
case ProtocolMessageCode.bye:
{
using (MemoryStream m = new MemoryStream(data))
{
using (BinaryReader reader = new BinaryReader(m))
{
endpoint.stop();
bool byeV1 = false;
try
{
int byeCode = reader.ReadInt32();
string byeMessage = reader.ReadString();
string byeData = reader.ReadString();
byeV1 = true;
if (byeCode != 200)
{
Logging.warn(string.Format("Disconnected with message: {0} {1}", byeMessage, byeData));
}
if (byeCode == 600)
{
if (IxiUtils.validateIPv4(byeData))
{
if (NetworkClientManager.getConnectedClients().Length < 2)
{
Config.publicServerIP = byeData;
Logging.info("Changed internal IP Address to " + byeData + ", reconnecting");
}
}
}
else if (byeCode == 601)
{
Logging.error("This node must be connectable from the internet, to connect to the network.");
Logging.error("Please setup uPNP and/or port forwarding on your router for port " + Config.serverPort + ".");
}
}
catch (Exception)
{
}
if (byeV1)
{
return;
}
reader.BaseStream.Seek(0, SeekOrigin.Begin);
// Retrieve the message
string message = reader.ReadString();
if (message.Length > 0)
{
Logging.info(string.Format("Disconnected with message: {0}", message));
}
else
{
Logging.info("Disconnected");
}
}
}
}
break;
case ProtocolMessageCode.extend:
{
if (Config.isTestClient)
{
TestClientNode.handleExtendProtocol(data);
}
}
break;
default:
break;
}
}
catch (Exception e)
{
Logging.error(string.Format("Error parsing network message. Details: {0}", e.ToString()));
}
}
// Unified protocol message parsing
public static void parseProtocolMessage(ProtocolMessageCode code, byte[] data, RemoteEndpoint endpoint)
{
if (endpoint == null)
{
Logging.error("Endpoint was null. parseProtocolMessage");
return;
}
try
{
switch (code)
{
case ProtocolMessageCode.hello:
{
using (MemoryStream m = new MemoryStream(data))
{
using (BinaryReader reader = new BinaryReader(m))
{
if (data[0] == 5)
{
CoreProtocolMessage.processHelloMessageV5(endpoint, reader);
}
else
{
CoreProtocolMessage.processHelloMessageV6(endpoint, reader);
}
}
}
}
break;
case ProtocolMessageCode.helloData:
using (MemoryStream m = new MemoryStream(data))
{
using (BinaryReader reader = new BinaryReader(m))
{
if (data[0] == 5)
{
if (!CoreProtocolMessage.processHelloMessageV5(endpoint, reader))
{
return;
}
ulong last_block_num = reader.ReadUInt64();
int bcLen = reader.ReadInt32();
byte[] block_checksum = reader.ReadBytes(bcLen);
int wsLen = reader.ReadInt32();
byte[] walletstate_checksum = reader.ReadBytes(wsLen);
int consensus = reader.ReadInt32(); // deprecated
endpoint.blockHeight = last_block_num;
int block_version = reader.ReadInt32();
// Check for legacy level
ulong legacy_level = reader.ReadUInt64(); // deprecated
int challenge_response_len = reader.ReadInt32();
byte[] challenge_response = reader.ReadBytes(challenge_response_len);
if (!CryptoManager.lib.verifySignature(endpoint.challenge, endpoint.serverPubKey, challenge_response))
{
CoreProtocolMessage.sendBye(endpoint, ProtocolByeCode.authFailed, string.Format("Invalid challenge response."), "", true);
return;
}
if (endpoint.presenceAddress.type != 'C')
{
ulong highest_block_height = IxianHandler.getHighestKnownNetworkBlockHeight();
if (last_block_num + 10 < highest_block_height)
{
CoreProtocolMessage.sendBye(endpoint, ProtocolByeCode.tooFarBehind, string.Format("Your node is too far behind, your block height is {0}, highest network block height is {1}.", last_block_num, highest_block_height), highest_block_height.ToString(), true);
return;
}
}
// Process the hello data
endpoint.helloReceived = true;
NetworkClientManager.recalculateLocalTimeDifference();
if (endpoint.presenceAddress.type == 'R')
{
string[] connected_servers = StreamClientManager.getConnectedClients(true);
if (connected_servers.Count() == 1 || !connected_servers.Contains(StreamClientManager.primaryS2Address))
{
if (StreamClientManager.primaryS2Address == "")
{
FriendList.requestAllFriendsPresences();
}
// TODO set the primary s2 host more efficiently, perhaps allow for multiple s2 primary hosts
StreamClientManager.primaryS2Address = endpoint.getFullAddress(true);
// TODO TODO do not set if directly connectable
IxianHandler.publicIP = endpoint.address;
IxianHandler.publicPort = endpoint.incomingPort;
PresenceList.forceSendKeepAlive = true;
Logging.info("Forcing KA from networkprotocol");
}
}
else if (endpoint.presenceAddress.type == 'C')
{
Friend f = FriendList.getFriend(endpoint.presence.wallet);
if (f != null && f.bot)
{
StreamProcessor.sendGetBotInfo(f);
}
}
if (endpoint.presenceAddress.type == 'M' || endpoint.presenceAddress.type == 'H')
{
Node.setNetworkBlock(last_block_num, block_checksum, block_version);
// Get random presences
endpoint.sendData(ProtocolMessageCode.getRandomPresences, new byte[1] {
(byte)'R'
});
endpoint.sendData(ProtocolMessageCode.getRandomPresences, new byte[1] {
(byte)'M'
});
endpoint.sendData(ProtocolMessageCode.getRandomPresences, new byte[1] {
(byte)'H'
});
subscribeToEvents(endpoint);
}
}
else
{
if (!CoreProtocolMessage.processHelloMessageV6(endpoint, reader))
{
return;
}
ulong last_block_num = reader.ReadIxiVarUInt();
int bcLen = (int)reader.ReadIxiVarUInt();
byte[] block_checksum = reader.ReadBytes(bcLen);
endpoint.blockHeight = last_block_num;
int block_version = (int)reader.ReadIxiVarUInt();
if (endpoint.presenceAddress.type != 'C')
{
ulong highest_block_height = IxianHandler.getHighestKnownNetworkBlockHeight();
if (last_block_num + 10 < highest_block_height)
{
CoreProtocolMessage.sendBye(endpoint, ProtocolByeCode.tooFarBehind, string.Format("Your node is too far behind, your block height is {0}, highest network block height is {1}.", last_block_num, highest_block_height), highest_block_height.ToString(), true);
return;
}
}
// Process the hello data
endpoint.helloReceived = true;
NetworkClientManager.recalculateLocalTimeDifference();
if (endpoint.presenceAddress.type == 'R')
{
string[] connected_servers = StreamClientManager.getConnectedClients(true);
if (connected_servers.Count() == 1 || !connected_servers.Contains(StreamClientManager.primaryS2Address))
{
if (StreamClientManager.primaryS2Address == "")
{
FriendList.requestAllFriendsPresences();
}
// TODO set the primary s2 host more efficiently, perhaps allow for multiple s2 primary hosts
StreamClientManager.primaryS2Address = endpoint.getFullAddress(true);
// TODO TODO do not set if directly connectable
IxianHandler.publicIP = endpoint.address;
IxianHandler.publicPort = endpoint.incomingPort;
PresenceList.forceSendKeepAlive = true;
Logging.info("Forcing KA from networkprotocol");
}
}
else if (endpoint.presenceAddress.type == 'C')
{
Friend f = FriendList.getFriend(endpoint.presence.wallet);
if (f != null && f.bot)
{
StreamProcessor.sendGetBotInfo(f);
}
}
if (endpoint.presenceAddress.type == 'M' || endpoint.presenceAddress.type == 'H')
{
Node.setNetworkBlock(last_block_num, block_checksum, block_version);
// Get random presences
endpoint.sendData(ProtocolMessageCode.getRandomPresences, new byte[1] {
(byte)'R'
});
endpoint.sendData(ProtocolMessageCode.getRandomPresences, new byte[1] {
(byte)'M'
});
endpoint.sendData(ProtocolMessageCode.getRandomPresences, new byte[1] {
(byte)'H'
});
subscribeToEvents(endpoint);
}
}
}
}
break;
case ProtocolMessageCode.s2data:
{
StreamProcessor.receiveData(data, endpoint);
}
break;
case ProtocolMessageCode.updatePresence:
{
Logging.info("NET: Receiving presence list update");
// Parse the data and update entries in the presence list
Presence p = PresenceList.updateFromBytes(data);
if (p == null)
{
return;
}
Friend f = FriendList.getFriend(p.wallet);
if (f != null)
{
f.relayIP = p.addresses[0].address;
}
}
break;
case ProtocolMessageCode.keepAlivePresence:
{
byte[] address = null;
long last_seen = 0;
byte[] device_id = null;
bool updated = PresenceList.receiveKeepAlive(data, out address, out last_seen, out device_id, endpoint);
Presence p = PresenceList.getPresenceByAddress(address);
if (p == null)
{
return;
}
Friend f = FriendList.getFriend(p.wallet);
if (f != null)
{
f.relayIP = p.addresses[0].address;
}
}
break;
case ProtocolMessageCode.getPresence:
{
using (MemoryStream m = new MemoryStream(data))
{
using (BinaryReader reader = new BinaryReader(m))
{
int walletLen = reader.ReadInt32();
byte[] wallet = reader.ReadBytes(walletLen);
Presence p = PresenceList.getPresenceByAddress(wallet);
if (p != null)
{
lock (p)
{
byte[][] presence_chunks = p.getByteChunks();
foreach (byte[] presence_chunk in presence_chunks)
{
endpoint.sendData(ProtocolMessageCode.updatePresence, presence_chunk, null);
}
}
}
else
{
// TODO blacklisting point
Logging.warn(string.Format("Node has requested presence information about {0} that is not in our PL.", Base58Check.Base58CheckEncoding.EncodePlain(wallet)));
}
}
}
}
break;
case ProtocolMessageCode.getPresence2:
{
using (MemoryStream m = new MemoryStream(data))
{
using (BinaryReader reader = new BinaryReader(m))
{
int walletLen = (int)reader.ReadIxiVarUInt();
byte[] wallet = reader.ReadBytes(walletLen);
Presence p = PresenceList.getPresenceByAddress(wallet);
if (p != null)
{
lock (p)
{
byte[][] presence_chunks = p.getByteChunks();
foreach (byte[] presence_chunk in presence_chunks)
{
endpoint.sendData(ProtocolMessageCode.updatePresence, presence_chunk, null);
}
}
}
else
{
// TODO blacklisting point
Logging.warn(string.Format("Node has requested presence information about {0} that is not in our PL.", Base58Check.Base58CheckEncoding.EncodePlain(wallet)));
}
}
}
}
break;
case ProtocolMessageCode.balance:
{
using (MemoryStream m = new MemoryStream(data))
{
using (BinaryReader reader = new BinaryReader(m))
{
int address_length = reader.ReadInt32();
byte[] address = reader.ReadBytes(address_length);
// Retrieve the latest balance
IxiNumber balance = reader.ReadString();
if (address.SequenceEqual(Node.walletStorage.getPrimaryAddress()))
{
// Retrieve the blockheight for the balance
ulong block_height = reader.ReadUInt64();
if (block_height > Node.balance.blockHeight && (Node.balance.balance != balance || Node.balance.blockHeight == 0))
{
byte[] block_checksum = reader.ReadBytes(reader.ReadInt32());
Node.balance.address = address;
Node.balance.balance = balance;
Node.balance.blockHeight = block_height;
Node.balance.blockChecksum = block_checksum;
Node.balance.verified = false;
}
Node.balance.lastUpdate = Clock.getTimestamp();
}
}
}
}
break;
case ProtocolMessageCode.balance2:
{
using (MemoryStream m = new MemoryStream(data))
{
using (BinaryReader reader = new BinaryReader(m))
{
int address_length = (int)reader.ReadIxiVarUInt();
byte[] address = reader.ReadBytes(address_length);
// Retrieve the latest balance
IxiNumber balance = new IxiNumber(new BigInteger(reader.ReadBytes((int)reader.ReadIxiVarUInt())));
if (address.SequenceEqual(Node.walletStorage.getPrimaryAddress()))
{
// Retrieve the blockheight for the balance
ulong block_height = reader.ReadIxiVarUInt();
if (block_height > Node.balance.blockHeight && (Node.balance.balance != balance || Node.balance.blockHeight == 0))
{
byte[] block_checksum = reader.ReadBytes((int)reader.ReadIxiVarUInt());
Node.balance.address = address;
Node.balance.balance = balance;
Node.balance.blockHeight = block_height;
Node.balance.blockChecksum = block_checksum;
Node.balance.verified = false;
}
Node.balance.lastUpdate = Clock.getTimestamp();
}
}
}
}
break;
case ProtocolMessageCode.newTransaction:
case ProtocolMessageCode.transactionData:
{
// TODO: check for errors/exceptions
Transaction transaction = new Transaction(data, true);
if (endpoint.presenceAddress.type == 'M' || endpoint.presenceAddress.type == 'H')
{
PendingTransactions.increaseReceivedCount(transaction.id, endpoint.presence.wallet);
}
TransactionCache.addUnconfirmedTransaction(transaction);
Node.tiv.receivedNewTransaction(transaction);
}
break;
case ProtocolMessageCode.bye:
CoreProtocolMessage.processBye(data, endpoint);
break;
case ProtocolMessageCode.blockHeaders2:
{
// Forward the block headers to the TIV handler
Node.tiv.receivedBlockHeaders2(data, endpoint);
}
break;
case ProtocolMessageCode.pitData2:
{
Node.tiv.receivedPIT2(data, endpoint);
}
break;
default:
break;
}
}
catch (Exception e)
{
Logging.error(string.Format("Error parsing network message. Details: {0}", e.ToString()));
}
}
private void onNavigating(object sender, WebNavigatingEventArgs e)
{
string current_url = HttpUtility.UrlDecode(e.Url);
if (onNavigatingGlobal(current_url))
{
e.Cancel = true;
return;
}
if (current_url.Equals("ixian:onload", StringComparison.Ordinal))
{
onLoad();
}
else if (current_url.Equals("ixian:back", StringComparison.Ordinal))
{
Navigation.PopAsync(Config.defaultXamarinAnimations);
}
else if (current_url.Equals("ixian:pick", StringComparison.Ordinal))
{
var recipientPage = new WalletRecipientPage();
recipientPage.pickSucceeded += HandlePickSucceeded;
Navigation.PushModalAsync(recipientPage);
}
else if (current_url.Equals("ixian:quickscan", StringComparison.Ordinal))
{
ICustomQRScanner scanner = DependencyService.Get <ICustomQRScanner>();
if (scanner != null && scanner.useCustomQRScanner())
{
Logging.error("Custom scanner not implemented");
e.Cancel = true;
return;
}
quickScan();
}
else if (current_url.Contains("ixian:qrresult:"))
{
string[] split = current_url.Split(new string[] { "ixian:qrresult:" }, StringSplitOptions.None);
string result = split[1];
processQRResult(result);
e.Cancel = true;
return;
}
else if (current_url.Equals("ixian:error", StringComparison.Ordinal))
{
displaySpixiAlert(SpixiLocalization._SL("global-invalid-address-title"), SpixiLocalization._SL("global-invalid-address-text"), SpixiLocalization._SL("global-dialog-ok"));
}
else if (current_url.Equals("ixian:error2", StringComparison.Ordinal))
{
displaySpixiAlert(SpixiLocalization._SL("wallet-error-amount-title"), SpixiLocalization._SL("wallet-error-amount-text"), SpixiLocalization._SL("global-dialog-ok"));
}
else if (current_url.Contains("ixian:send:"))
{
string[] split = current_url.Split(new string[] { "ixian:send:" }, StringSplitOptions.None);
// Extract all addresses and amounts
string[] addresses_split = split[1].Split(new string[] { "|" }, StringSplitOptions.None);
// Go through each entry
foreach (string address_and_amount in addresses_split)
{
if (address_and_amount.Length < 1)
{
continue;
}
// Extract the address and amount
string[] asplit = address_and_amount.Split(new string[] { ":" }, StringSplitOptions.None);
if (asplit.Count() < 2)
{
continue;
}
string address = asplit[0];
string amount = asplit[1];
if (Address.validateChecksum(Base58Check.Base58CheckEncoding.DecodePlain(address)) == false)
{
e.Cancel = true;
displaySpixiAlert(SpixiLocalization._SL("global-invalid-address-title"), SpixiLocalization._SL("global-invalid-address-text"), SpixiLocalization._SL("global-dialog-ok"));
return;
}
string[] amount_split = amount.Split(new string[] { "." }, StringSplitOptions.None);
if (amount_split.Length > 2)
{
displaySpixiAlert(SpixiLocalization._SL("wallet-error-amount-title"), SpixiLocalization._SL("wallet-error-amountdecimal-text"), SpixiLocalization._SL("global-dialog-ok"));
e.Cancel = true;
return;
}
// Add decimals if none found
if (amount_split.Length == 1)
{
amount = String.Format("{0}.0", amount);
}
IxiNumber _amount = amount;
if (_amount == 0)
{
displaySpixiAlert(SpixiLocalization._SL("wallet-error-amount-title"), SpixiLocalization._SL("wallet-error-amount-text"), SpixiLocalization._SL("global-dialog-ok"));
e.Cancel = true;
return;
}
if (_amount < (long)0)
{
displaySpixiAlert(SpixiLocalization._SL("wallet-error-amount-title"), SpixiLocalization._SL("wallet-error-amount-text"), SpixiLocalization._SL("global-dialog-ok"));
e.Cancel = true;
return;
}
}
Navigation.PushAsync(new WalletSend2Page(addresses_split), Config.defaultXamarinAnimations);
}
else if (current_url.Contains("ixian:getMaxAmount"))
{
if (Node.balance.balance > ConsensusConfig.transactionPrice * 2)
{
// TODO needs to be improved and pubKey length needs to be taken into account
Utils.sendUiCommand(webView, "setAmount", (Node.balance.balance - (ConsensusConfig.transactionPrice * 2)).ToString());
}
}
else if (current_url.Contains("ixian:addrecipient"))
{
try
{
string[] split = current_url.Split(new string[] { "ixian:addrecipient:" }, StringSplitOptions.None);
if (Address.validateChecksum(Base58Check.Base58CheckEncoding.DecodePlain(split[1])))
{
Utils.sendUiCommand(webView, "addRecipient", split[1], split[1]);
}
else
{
displaySpixiAlert(SpixiLocalization._SL("global-invalid-address-title"), SpixiLocalization._SL("global-invalid-address-text"), SpixiLocalization._SL("global-dialog-ok"));
}
}
catch (Exception)
{
displaySpixiAlert(SpixiLocalization._SL("global-invalid-address-title"), SpixiLocalization._SL("global-invalid-address-text"), SpixiLocalization._SL("global-dialog-ok"));
}
}
else
{
// Otherwise it's just normal navigation
e.Cancel = false;
return;
}
e.Cancel = true;
}