public async Task <IActionResult> GetOfferAPI(string offerId)
{
var entry = await AtomicSwapRepository.GetEntry(offerId);
if (entry == null ||
(entry.Status != XSwapStatus.WaitingTaker && entry.Role == XSwapRole.Maker) ||
(entry.Status != XSwapStatus.WaitingEscrow && entry.Role == XSwapRole.Taker))
{
return(NotFound());
}
return(Json(entry.Offer));
}
public async Task <IActionResult> TakeOfferAPI(string offerId, [FromBody] AtomicSwapTakeRequest request)
{
var entry = await AtomicSwapRepository.GetEntry(offerId);
if (entry == null || entry.Status != XSwapStatus.WaitingTaker)
{
return(NotFound());
}
// TODO atomically take the offer
var client = AtomicSwapClientFactory.Create(request.TakerUri);
AtomicSwapTakeResponse response = null;
try
{
using (var cts = new CancellationTokenSource())
{
cts.CancelAfter(5000);
var takerOffer = await client.GetOffer(cts.Token);
if (takerOffer.MarketMakerUri != entry.Offer.MarketMakerUri)
{
return(NotFound());
}
}
}
catch { }
entry.Partner = request.TakerUri.DnsSafeHost;
entry.OtherUri = request.TakerUri;
entry.Status = XSwapStatus.WaitingEscrow;
entry.Sent.MyKey = new Key();
entry.Sent.OtherKey = request.MakerSentCryptoPubkey;
entry.Received.MyKey = new Key();
entry.Received.OtherKey = request.MakerReceivedCryptoPubkey;
entry.Preimage = new Preimage();
entry.Hash = entry.Preimage.GetHash();
response = new AtomicSwapTakeResponse()
{
Hash = entry.Preimage.GetHash(),
MakerReceivedCryptoPubkey = entry.Received.MyKey.PubKey,
MakerSentCryptoPubkey = entry.Received.MyKey.PubKey
};
await AtomicSwapRepository.UpdateEntry(offerId, entry);
return(Json(response));
}
