Make nostr great again

Plugins/BTCPayServer.Plugins.NIP05/BTCPayServer.Plugins.NIP05.csproj

@@ -11,7 +11,7 @@
     <PropertyGroup>
         <Product>Nostr </Product>
         <Description>Allows you to verify your nostr account with NIP5 and zap like the rest of the crazies</Description>
-        <Version>1.0.16</Version>
+        <Version>1.1.0</Version>
     </PropertyGroup>
     <!-- Plugin development properties -->
     <PropertyGroup>

Plugins/BTCPayServer.Plugins.NIP05/LnurlDescriptionFilter.cs

@@ -47,11 +47,7 @@ public class LnurlDescriptionFilter : PluginHookFilter<string>
                 var username = metadata
                     .FirstOrDefault(strings => strings.FirstOrDefault()?.Equals("text/identifier") is true)
                     ?.ElementAtOrDefault(1)?.ToLowerInvariant().Split("@")[0];
-                if (string.IsNullOrEmpty(username))
+                if (!string.IsNullOrEmpty(username))
-                {
-                    return arg;
-                }
-                else
                 {
                     var lnAddress = await _lightningAddressService.ResolveByAddress(username);
                     if (lnAddress is null)
@@ -59,9 +55,6 @@ public class LnurlDescriptionFilter : PluginHookFilter<string>
                         return arg;
                     }
                 }
-
-               
-
                 var parsedNote = System.Text.Json.JsonSerializer.Deserialize<NostrEvent>(nostr);
                 if (parsedNote?.Kind != 9734)
                 {

Plugins/BTCPayServer.Plugins.NIP05/LnurlFilter.cs

@@ -23,20 +23,21 @@ public class LnurlFilter : PluginHookFilter<LNURLPayRequest>
     {
         var name = arg.ParsedMetadata.FirstOrDefault(pair => pair.Key == "text/identifier").Value
             ?.ToLowerInvariant().Split("@")[0];
-        if (string.IsNullOrEmpty(name))
+        if (!string.IsNullOrEmpty(name))
         {
-            return arg;
+            var lnAddress = await _lightningAddressService.ResolveByAddress(name);
+            if (lnAddress is null)
+            {
+                return arg;
+            }
+            var nip5 = await _nip5Controller.GetForStore(lnAddress.StoreDataId);
+            arg.NostrPubkey = nip5?.PubKey;
         }
 
-        var lnAddress = await _lightningAddressService.ResolveByAddress(name);
+        
-        if (lnAddress is null)
-        {
-            return arg;
-        }
 
-        var nip5 = await _nip5Controller.GetForStore(lnAddress.StoreDataId);
 
-        arg.NostrPubkey = nip5?.PubKey ?? (await _zapper.GetSettings()).ZappingPublicKeyHex;
+        arg.NostrPubkey ??= (await _zapper.GetSettings()).ZappingPublicKeyHex;
         arg.AllowsNostr = true;
         return arg;
     }

Plugins/BTCPayServer.Plugins.NIP05/Nip5Controller.cs

@@ -2,14 +2,18 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Net.Http;
 using System.Threading.Tasks;
 using BTCPayServer.Abstractions.Constants;
 using BTCPayServer.Client;
+using BTCPayServer.Filters;
 using BTCPayServer.Services.Stores;
+using LNURL;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Cors;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Caching.Memory;
+using NBitcoin;
 using NBitcoin.DataEncoders;
 using NBitcoin.Secp256k1;
 using NNostr.Client;
@@ -205,4 +209,33 @@ public class Nip5Controller : Controller
                     : null
             });
     }
+
+    [CheatModeRoute]
+    [HttpGet("~/nostr-fake")]
+    [EnableCors(CorsPolicies.All)]
+    [IgnoreAntiforgeryToken]
+    [AllowAnonymous]
+    public async Task<IActionResult> FakeNostr(string lnurl)
+    {
+        if (lnurl.Contains("@"))
+        {
+            lnurl = LNURL.LNURL.ExtractUriFromInternetIdentifier(lnurl).ToString();
+        }
+        var lnurlRequest = (LNURLPayRequest) await LNURL.LNURL.FetchInformation(new Uri(lnurl), new HttpClient());
+        var nKey = ECPrivKey.Create(RandomUtils.GetBytes(32));
+        var nostrEvent = new NostrEvent()
+        {
+            Kind = 9734,
+            Content = "",
+
+        };
+        var lnurlBech32x = LNURL.LNURL.EncodeBech32(new Uri(lnurl));
+        nostrEvent.SetTag("relays", "wss://btcpay.kukks.org/nostr");
+        nostrEvent.SetTag("lnurl", lnurlBech32x);
+        nostrEvent.SetTag("amount", lnurlRequest.MinSendable.MilliSatoshi.ToString());
+        nostrEvent = await nostrEvent.ComputeIdAndSignAsync(nKey);
+        var response = await new HttpClient().GetAsync(lnurlRequest.Callback + "?amount=" + lnurlRequest.MinSendable.MilliSatoshi +
+                                  "&nostr=" +System.Text.Json.JsonSerializer.Serialize(nostrEvent));
+        return Content(await response.Content.ReadAsStringAsync());
+    }
 }

Plugins/BTCPayServer.Plugins.NIP05/Zapper.cs

@@ -5,8 +5,10 @@ using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
 using BTCPayServer.Events;
+using BTCPayServer.Models.InvoicingModels;
 using BTCPayServer.Payments;
 using BTCPayServer.Services;
+using BTCPayServer.Services.Invoices;
 using BTCPayServer.Services.Stores;
 using Microsoft.Extensions.Caching.Memory;
 using Microsoft.Extensions.Hosting;
@@ -49,6 +51,7 @@ public class Zapper : IHostedService
     private readonly IMemoryCache _memoryCache;
     private readonly ILogger<Zapper> _logger;
     private readonly SettingsRepository _settingsRepository;
+    private readonly InvoiceRepository _invoiceRepository;
     private IEventAggregatorSubscription _subscription;
     private readonly ConcurrentBag<PendingZapEvent> _pendingZapEvents = new();
 
@@ -70,13 +73,18 @@ public class Zapper : IHostedService
 
 
     public Zapper(EventAggregator eventAggregator, 
-        Nip5Controller nip5Controller, IMemoryCache memoryCache, ILogger<Zapper> logger, SettingsRepository settingsRepository, StoreRepository storeRepository)
+        Nip5Controller nip5Controller, 
+        IMemoryCache memoryCache, 
+        ILogger<Zapper> logger, 
+        SettingsRepository settingsRepository, 
+        InvoiceRepository invoiceRepository)
     {
         _eventAggregator = eventAggregator;
         _nip5Controller = nip5Controller;
         _memoryCache = memoryCache;
         _logger = logger;
         _settingsRepository = settingsRepository;
+        _invoiceRepository = invoiceRepository;
     }
 
     public Task StartAsync(CancellationToken cancellationToken)
@@ -202,9 +210,16 @@ public class Zapper : IHostedService
             Tags = tags
         };
 
-
+        zapReceipt = await zapReceipt.ComputeIdAndSignAsync(key);
-        await zapReceipt.ComputeIdAndSignAsync(key);
+        relays = relays.Concat(userNostrSettings?.Relays ?? Array.Empty<string>()).Distinct().ToArray();
-        _pendingZapEvents.Add(new PendingZapEvent(relays.Concat(userNostrSettings?.Relays?? Array.Empty<string>()).Distinct().ToArray(), zapReceipt));
+        arg.Invoice.Metadata.SetAdditionalData("Nostr", new Dictionary<string,string>()
+        {
+            {"Zap Request", zapRequestEvent.Id},
+            {"Zap Receipt", zapReceipt.Id},
+            {"Relays", string.Join(',', relays)}
+        });
+        await _invoiceRepository.UpdateInvoiceMetadata(arg.InvoiceId, arg.Invoice.StoreId, arg.Invoice.Metadata.ToJObject());
+        _pendingZapEvents.Add(new PendingZapEvent(relays, zapReceipt));
     }
 
     public Task StopAsync(CancellationToken cancellationToken)