public static void Main(string[] args)
{
var serviceProvider = new ServiceCollection()
.AddLogging()
.AddSingleton <ITumblerService, TumblerService>()
.BuildServiceProvider();
serviceProvider
.GetService <ILoggerFactory>()
.AddConsole(LogLevel.Debug);
// TODO: It is messy having both a BreezeD logger and an NTumbleBit logger
var logger = serviceProvider.GetService <ILoggerFactory>()
.CreateLogger <Program>();
logger.LogInformation("{Time} Reading Breeze server configuration", DateTime.Now);
// Check OS-specific default config path for the config file. Create default file if it does not exist
var configDir = BreezeConfiguration.GetDefaultDataDir("BreezeD");
var configPath = Path.Combine(configDir, "breeze.conf");
logger.LogInformation("{Time} Configuration file path {Path}", DateTime.Now, configPath);
var config = new BreezeConfiguration(configPath);
var dbPath = Path.Combine(configDir, "db");
logger.LogInformation("{Time} Database path {Path}", DateTime.Now, dbPath);
var db = new DBUtils(dbPath);
logger.LogInformation("{Time} Checking node registration on the blockchain", DateTime.Now);
var registration = new BreezeRegistration();
if (!registration.CheckBreezeRegistration(config, db))
{
logger.LogInformation("{Time} Creating or updating node registration", DateTime.Now);
var regTx = registration.PerformBreezeRegistration(config, db);
if (regTx != null)
{
logger.LogInformation("{Time} Submitted transaction {TxId} via RPC for broadcast", DateTime.Now, regTx.GetHash().ToString());
}
else
{
logger.LogInformation("{Time} Unable to broadcast transaction via RPC", DateTime.Now);
Environment.Exit(0);
}
}
else
{
logger.LogInformation("{Time} Node registration has already been performed", DateTime.Now);
}
logger.LogInformation("{Time} Starting Tumblebit server", DateTime.Now);
db.UpdateOrInsert <string>("TumblerStartupLog", DateTime.Now.ToString("yyyyMMddHHmmss"), "Tumbler starting", (o, n) => n);
var tumbler = serviceProvider.GetService <ITumblerService>();
tumbler.StartTumbler(config.IsTestNet);
}
public void ParseTransaction(Transaction tx, Network network)
{
if (tx.Outputs.Count < 2)
{
throw new Exception("Transaction does not have sufficient outputs");
}
var breezeReg = new BreezeRegistration();
// Assume the nulldata transaction marker is the first output
//var firstOutputData = breezeReg.AddressToBytes(tx.Outputs[0].ScriptPubKey.GetDestinationAddress(network));
// TODO: Validate that the marker bytes are present before proceeding
// Peek at first non-nulldata address to get the length information,
// this indicates if there will be a change address output or not
var secondOutputData = breezeReg.AddressToBytes(tx.Outputs[1].ScriptPubKey.GetDestinationAddress(network));
var protocolVersion = (int)secondOutputData[0];
var headerLength = ((int)secondOutputData[2] << 8) + ((int)secondOutputData[1]);
int numAddresses = headerLength / 20;
if (headerLength % 20 != 0)
{
numAddresses++;
}
if (tx.Outputs.Count < (numAddresses + 1))
{
throw new Exception("Too few addresses in transaction output, registration transaction incomplete");
}
var addressList = new List <BitcoinAddress>();
for (var i = 1; i < (numAddresses + 1); i++)
{
addressList.Add(tx.Outputs[i].ScriptPubKey.GetDestinationAddress(network));
}
var bitstream = breezeReg.AddressesToBytes(addressList);
// Need to consume X bytes at a time off the bitstream and convert them to various
// data types, then set member variables to the retrieved values.
// Skip over protocol version and header length bytes
var position = 3;
ProtocolVersion = protocolVersion;
// Either a valid IPv4 address, or all zero bytes
bool allZeroes = true;
byte[] ipv4temp = GetSubArray(bitstream, position, 4);
for (var i = 0; i < ipv4temp.Length; i++)
{
if (ipv4temp[i] != 0)
{
allZeroes = false;
}
}
if (!allZeroes)
{
Ipv4Addr = new IPAddress(ipv4temp);
}
else
{
Ipv4Addr = null;
}
position += 4;
// Either a valid IPv6 address, or all zero bytes
allZeroes = true;
byte[] ipv6temp = GetSubArray(bitstream, position, 16);
for (var i = 0; i < ipv6temp.Length; i++)
{
if (ipv6temp[i] != 0)
{
allZeroes = false;
}
}
if (!allZeroes)
{
Ipv6Addr = new IPAddress(ipv6temp);
}
else
{
Ipv6Addr = null;
}
position += 16;
// Either a valid onion address, or all zero bytes
allZeroes = true;
byte[] onionTemp = GetSubArray(bitstream, position, 16);
for (var i = 0; i < onionTemp.Length; i++)
{
if (onionTemp[i] != 0)
{
allZeroes = false;
}
}
if (!allZeroes)
{
OnionAddress = Encoding.ASCII.GetString(onionTemp);
}
else
{
OnionAddress = null;
}
position += 16;
var temp = GetSubArray(bitstream, position, 2);
Port = ((int)temp[1] << 8) + ((int)temp[0]);
position += 2;
temp = GetSubArray(bitstream, position, 2);
var rsaLength = ((int)temp[1] << 8) + ((int)temp[0]);
position += 2;
RsaSignature = GetSubArray(bitstream, position, rsaLength);
position += rsaLength;
temp = GetSubArray(bitstream, position, 2);
var ecdsaLength = ((int)temp[1] << 8) + ((int)temp[0]);
position += 2;
EcdsaSignature = GetSubArray(bitstream, position, ecdsaLength);
position += ecdsaLength;
// TODO: Validate signatures
}
