public bool CheckBreezeRegistration(BreezeConfiguration config, DBUtils db)
{
var network = Network.StratisMain;
if (config.IsTestNet)
{
// TODO: Change to StratisTest when it is added to NStratis
network = Network.TestNet;
}
// In order to determine if the registration sequence has been performed
// before, and to see if a previous performance is still valid, interrogate
// the database to see if any transactions have been recorded.
var transactions = db.GetDictionary <string, string>("RegistrationTransactions");
// If no transactions exist, the registration definitely needs to be done
if (transactions == null || transactions.Count == 0)
{
return(false);
}
string highestKey = null;
foreach (var txn in transactions)
{
// Find most recent transaction. Assume that the rowKeys are ordered
// lexicographically.
if (highestKey == null)
{
highestKey = txn.Key;
}
if (String.Compare(txn.Key, highestKey) == 1)
{
highestKey = txn.Key;
}
}
var mostRecentTxn = new Transaction(transactions[highestKey]);
// Decode transaction and check if the decoded bitstream matches the
// current configuration
// TODO: Check if transaction is actually confirmed on the blockchain?
var registrationToken = new RegistrationToken();
registrationToken.ParseTransaction(mostRecentTxn, network);
if (!config.Ipv4Address.Equals(registrationToken.Ipv4Addr))
{
return(false);
}
if (!config.Ipv6Address.Equals(registrationToken.Ipv6Addr))
{
return(false);
}
if (config.OnionAddress != registrationToken.OnionAddress)
{
return(false);
}
if (config.Port != registrationToken.Port)
{
return(false);
}
return(true);
}