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This commit is contained in:
Kukks
2020-04-08 10:06:05 +02:00
parent 73b13c750d
commit 624e6e4744
3 changed files with 13 additions and 22 deletions
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2
BTCPayServer.Tests/PayJoinTests.cs
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@@ -79,7 +79,7 @@ namespace BTCPayServer.Tests
var receiverCoin = await receiverUser.ReceiveUTXO(Money.Satoshis(810), network);
var clientShouldError = unsupportedFormats.Contains(senderAddressType);
var errorCode = !clientShouldError && ( unsupportedFormats.Contains( receiverAddressType) || receiverAddressType != senderAddressType)? "unsupported-inputs" : null;
var errorCode = ( unsupportedFormats.Contains( receiverAddressType) || receiverAddressType != senderAddressType)? "unsupported-inputs" : null;
var invoice = receiverUser.BitPay.CreateInvoice(new Invoice() {Price = 50000, Currency = "sats", FullNotifications = true});

9
BTCPayServer/Payments/PayJoin/PayJoinEndpointController.cs
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@@ -4,7 +4,6 @@ using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using BTCPayServer.Data;
using BTCPayServer.Events;
using BTCPayServer.Filters;
using BTCPayServer.HostedServices;
@@ -14,12 +13,8 @@ using BTCPayServer.Services.Invoices;
using BTCPayServer.Services.Stores;
using BTCPayServer.Services.Wallets;
using Microsoft.AspNetCore.Cors;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.ModelBinding;
using NBitcoin;
using NBitcoin.DataEncoders;
using NBitcoin.Logging;
using NBXplorer;
using NBXplorer.Models;
using Newtonsoft.Json.Linq;
@@ -173,8 +168,8 @@ namespace BTCPayServer.Payments.PayJoin
await _explorerClientProvider.GetExplorerClient(network).BroadcastAsync(originalTx);
}
var allNativeSegwit = originalTx.Inputs.All(i => (i.GetSigner() is WitKeyId));
var allScript = originalTx.Inputs.All(i => (i.GetSigner() is WitScriptId));
var allNativeSegwit = psbt.Inputs.All(i => i.ScriptPubKeyType() == ScriptPubKeyType.Segwit);
var allScript = psbt.Inputs.All(i => i.ScriptPubKeyType() == ScriptPubKeyType.SegwitP2SH);
if (!allNativeSegwit && !allScript)
return BadRequest(CreatePayjoinError(400, "unsupported-inputs", "Payjoin only support segwit inputs (of the same type)"));
if (psbt.CheckSanity() is var errors && errors.Count != 0)

24
BTCPayServer/Services/PayjoinClient.cs
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@@ -14,9 +14,14 @@ namespace BTCPayServer.Services
public static class PSBTExtensions
{
public static TxDestination GetSigner(this PSBTInput psbtInput)
public static ScriptPubKeyType? ScriptPubKeyType(this PSBTInput i)
{
return psbtInput.FinalScriptSig?.GetSigner() ?? psbtInput.FinalScriptWitness?.GetSigner();
if (i.WitnessUtxo.ScriptPubKey.IsScriptType(ScriptType.P2WPKH))
return NBitcoin.ScriptPubKeyType.Segwit;
if (i.WitnessUtxo.ScriptPubKey.IsScriptType(ScriptType.P2SH) &&
i.FinalScriptWitness.ToScript().IsScriptType(ScriptType.P2WPKH))
return NBitcoin.ScriptPubKeyType.SegwitP2SH;
return null;
}
}
@@ -160,7 +165,7 @@ namespace BTCPayServer.Services
}
}
// Making sure that the receiver's inputs are finalized and P2PWKH
// Making sure that the receiver's inputs are finalized and match format
foreach (var input in newPSBT.Inputs)
{
if (originalTx.Inputs.FindIndexedInput(input.PrevOut) is null)
@@ -168,18 +173,9 @@ namespace BTCPayServer.Services
if (!input.IsFinalized())
throw new PayjoinSenderException("The payjoin receiver included a non finalized input");
switch (type)
if (type != input.ScriptPubKeyType())
{
case ScriptPubKeyType.Segwit:
if (!(input.FinalScriptWitness.GetSigner() is WitKeyId))
throw new PayjoinSenderException("The payjoin receiver included an input that is not the same segwit input type");
break;
case ScriptPubKeyType.SegwitP2SH:
if (!(input.FinalScriptWitness.GetSigner() is WitKeyId))
throw new PayjoinSenderException("The payjoin receiver included an input that is not the same segwit input type");;
break;
default:
throw new ArgumentOutOfRangeException();
throw new PayjoinSenderException("The payjoin receiver included an input that is not the same segwit input type");
}
}
}