/// <summary>
/// Builds the boss table. The boss table contains an entry for each participating member
/// node on the network.
/// </summary>
/// <param name="blockHeight">The height of the block containing the crosschain transaction</param>
/// <param name="keys">An array of the public keys of each federation member.</param>
/// <returns></returns>
public BossTable Build(int blockHeight, IEnumerable <string> keys)
{
var bossCards = keys
.Select(key => BossTable.MakeBossTableEntry(blockHeight, key).ToString())
.OrderBy(k => k);
return(new BossTable(bossCards.ToList()));
}
public MonitorChainSession(int blockNumber, string[] federationPubKeys, string myPublicKey)
{
this.Status = SessionStatus.Created;
this.startTime = DateTime.Now;
this.CrossChainTransactions = new List <CrossChainTransactionInfo>();
this.BlockNumber = blockNumber;
this.BossTable = new BossTableBuilder().Build(blockNumber, federationPubKeys);
this.BossCard = BossTable.MakeBossTableEntry(blockNumber, myPublicKey).ToString();
}
/// <summary>
/// Builds the boss table. The boss table contains an entry for each participating member
/// node on the network.
/// </summary>
/// <param name="blockHeight">The height of the block containing the crosschain transaction</param>
/// <param name="keys">An array of the public keys of each federation member.</param>
/// <returns></returns>
public BossTable Build(int blockHeight, IEnumerable <string> keys)
{
// BossTableEntries are strings.
// Hash the concatination of the sessionId and the key to get each entry in the table.
var bossCards = keys
.Select(key => BossTable.MakeBossTableEntry(blockHeight, key).ToString())
.OrderBy(k => k);
// We now have a table that is reproducable on every federation node on the network.
return(new BossTable(bossCards.ToList()));
}
private async Task OnMessageReceivedAsync(INetworkPeer peer, IncomingMessage message)
{
this.logger.LogTrace("({0}:'{1}',{2}:'{3}')", nameof(peer), peer.RemoteSocketEndpoint, nameof(message), message.Message.Command);
if (message.Message.Payload is RequestPartialTransactionPayload payload)
{
this.logger.LogInformation("RequestPartialTransactionPayload received.");
this.logger.LogInformation("OnMessageReceivedAsync: {0}", this.network.ToChain());
this.logger.LogInformation("RequestPartialTransactionPayload: BossCard - {0}.", payload.BossCard);
this.logger.LogInformation("RequestPartialTransactionPayload: BlockHeight - {0}.", payload.BlockHeight);
this.logger.LogInformation("RequestPartialTransactionPayload: PartialTransaction - {0}.", payload.PartialTransaction);
this.logger.LogInformation("RequestPartialTransactionPayload: TemplateTransaction - {0}.", payload.TemplateTransaction);
if (payload.BossCard == uint256.Zero)
{
//get the template from the payload
this.logger.LogInformation("OnMessageReceivedAsync: Payload has no bossCard -> signing partial.");
var template = payload.TemplateTransaction;
var partialTransactionSession = this.counterChainSessionManager.VerifySession(payload.BlockHeight, template);
if (partialTransactionSession == null)
{
return;
}
this.counterChainSessionManager.MarkSessionAsSigned(partialTransactionSession);
var wallet = this.federationWalletManager.GetWallet();
var signedTransaction = wallet.SignPartialTransaction(template, this.federationWalletManager.Secret.WalletPassword);
payload.AddPartial(signedTransaction, BossTable.MakeBossTableEntry(payload.BlockHeight, this.federationGatewaySettings.PublicKey));
this.logger.LogInformation("OnMessageReceivedAsync: PartialTransaction signed.");
this.logger.LogInformation("RequestPartialTransactionPayload: BossCard - {0}.", payload.BossCard);
this.logger.LogInformation("RequestPartialTransactionPayload: PartialTransaction - {0}.", payload.PartialTransaction);
this.logger.LogInformation("Broadcasting Payload....");
await this.Broadcast(payload);
this.logger.LogInformation("Broadcasted.");
}
else
{
//we got a partial back
this.logger.LogInformation("RequestPartialTransactionPayload: PartialTransaction received.");
this.counterChainSessionManager.ReceivePartial(payload.BlockHeight, payload.PartialTransaction, payload.BossCard);
}
}
this.logger.LogTrace("(-)");
}