public UnsignedVoucherInformation AskUnsignedVoucher()
{
var height = Services.BlockExplorerService.GetCurrentHeight();
var cycleParameters = Parameters.CycleGenerator.GetRegistratingCycle(height);
BobServerChannelNegotiation session = CreateBobServerChannelNegotiation(cycleParameters.Start);
return(session.GenerateUnsignedVoucher());
}
public IActionResult OpenChannel([FromBody] OpenChannelRequest request)
{
var height = Services.BlockExplorerService.GetCurrentHeight();
BobServerChannelNegotiation session = CreateBobServerChannelNegotiation(request.CycleStart);
var cycle = session.GetCycle();
if (!cycle.IsInPhase(CyclePhase.TumblerChannelEstablishment, height))
{
return(BadRequest("incorrect-phase"));
}
var fee = Services.FeeService.GetFeeRate();
try
{
session.ReceiveBobEscrowInformation(request);
if (!Repository.MarkUsedNonce(request.CycleStart, request.Nonce))
{
return(BadRequest("nonce-already-used"));
}
Logs.Server.LogInformation($"Cycle {cycle.Start} Asked to open channel");
var txOut = session.BuildEscrowTxOut();
var tx = Services.WalletService.FundTransaction(txOut, fee);
if (tx == null)
{
Logs.Server.LogInformation("Not funds left for creating a channel");
return(BadRequest("tumbler-insufficient-funds"));
}
var escrowTumblerLabel = $"Cycle {cycle.Start} Tumbler Escrow";
Services.BlockExplorerService.Track(escrowTumblerLabel, txOut.ScriptPubKey);
Services.BroadcastService.Broadcast(escrowTumblerLabel, tx);
Logs.Server.LogInformation($"Cycle {cycle.Start} Channel created " + tx.GetHash());
var promiseServerSession = session.SetSignedTransaction(tx);
Repository.Save(cycle.Start, promiseServerSession);
var redeem = Services.WalletService.GenerateAddress($"Cycle {cycle.Start} Tumbler Redeem");
var redeemTx = promiseServerSession.CreateRedeemTransaction(fee, redeem.ScriptPubKey);
Services.TrustedBroadcastService.Broadcast($"Cycle {session.GetCycle().Start} Tumbler Redeem (locked until: {redeemTx.Transaction.LockTime})", redeemTx);
return(Json(promiseServerSession.EscrowedCoin));
}
catch (PuzzleException)
{
return(BadRequest("incorrect-voucher"));
}
}
