better send tools

Plugins/BTCPayServer.Plugins.Wabisabi/BTCPayWallet.cs

@@ -336,6 +336,7 @@ public class BTCPayWallet : IWallet, IDestinationProvider
         {
             var stopwatch = new Stopwatch();
             stopwatch.Start();
+            var txHash = result.UnsignedCoinJoin.GetHash();
             var kp = await ExplorerClient.GetMetadataAsync<RootedKeyPath>(DerivationScheme,
                 WellknownMetadataKeys.AccountKeyPath);
 
@@ -409,7 +410,7 @@ public class BTCPayWallet : IWallet, IDestinationProvider
             {
                 Round = result.RoundId.ToString(),
                 CoordinatorName = coordinatorName,
-                Transaction = result.UnsignedCoinJoin.GetHash().ToString(),
+                Transaction = txHash.ToString(),
                 CoinsIn =   smartTx.WalletInputs.Select(coin => new CoinjoinData.CoinjoinDataCoin()
                 {
                     AnonymitySet = coin.AnonymitySet,
@@ -455,12 +456,12 @@ public class BTCPayWallet : IWallet, IDestinationProvider
             {
                 await _walletRepository.AddWalletTransactionAttachment(
                     new WalletId(storeIdForutxo, "BTC"),
-                    result.UnsignedCoinJoin.GetHash(),
+                    txHash,
                     new List<Attachment>()
                     {
                         new Attachment("coinjoin", result.RoundId.ToString(), JObject.FromObject(new CoinjoinData()
                         {
-                            Transaction =  result.UnsignedCoinJoin.GetHash().ToString(),
+                            Transaction =  txHash.ToString(),
                             Round = result.RoundId.ToString(),
                             CoinsOut = mixedCoins.Select(coin => new CoinjoinData.CoinjoinDataCoin()
                             {

Plugins/BTCPayServer.Plugins.Wabisabi/Views/Shared/Wabisabi/WabisabiWalletSend.cshtml

@@ -0,0 +1,89 @@
+@using BTCPayServer.Security
+@using NBitcoin
+@using BTCPayServer.Abstractions.Contracts
+@using BTCPayServer.Plugins.Wabisabi
+@using WalletWasabi.Blockchain.Analysis
+@model BTCPayServer.Models.WalletViewModels.WalletSendModel
+
+@inject ContentSecurityPolicies contentSecurityPolicies
+@inject WalletProvider  _walletProvider
+@inject IScopeProvider ScopeProvider
+@{
+    var nonce = RandomUtils.GetUInt256().ToString().Substring(0, 32);
+    contentSecurityPolicies.Add("script-src", $"'nonce-{nonce}'");
+    contentSecurityPolicies.AllowUnsafeHashes();
+    var storeId = ScopeProvider.GetCurrentStoreId();
+    var w = await _walletProvider.GetWalletAsync(storeId);
+}
+
+@if (w is not null)
+{
+    
+    <div style="display: none">
+        <div id="wabisabitemplate">
+            <button type="button"
+                    id="privatesend"
+                    class="btn btn-primary"
+                    title="Optimzie coin selection for privacy">
+                Private coin selection
+                <i class="fa fa-user-secret"></i>
+            </button>
+        </div>
+
+    </div>
+    <datalist id="wabisabidenominations">
+        @foreach (var stdDenom in BlockchainAnalyzer.StdDenoms)
+        {
+            var num = new Money(stdDenom).ToDecimal(MoneyUnit.BTC);
+        <option value="@num">Privacy suggestion (used in coinjoins)</option>
+        }
+    </datalist>
+    
+
+<script type="text/javascript" nonce="@nonce">
+ document.addEventListener("DOMContentLoaded", function () {
+     
+                const amountElements = document.querySelectorAll("[name^='Outputs'][name$='Amount']");
+     amountElements.forEach(value => {
+                         value.setAttribute("list","wabisabidenominations" );
+                     });
+     document.querySelector("#SignTransaction").insertAdjacentElement("beforeBegin", document.getElementById("wabisabitemplate"))
+     
+     document.getElementById("privatesend").addEventListener("click", async ev => {
+         document.getElementById("InputSelection").value = "True";
+                const amountElements = document.querySelectorAll("[name^='Outputs'][name$='Amount']");
+                let amount = 0;
+                amountElements.forEach(value => {
+                    try {
+                      
+                    amount+= parseFloat(value.value);
+                    }catch{}
+                });
+                if (!amount){
+                    return;
+                }
+                const url =@Safe.Json(@Url.Action("ComputeCoinSelection", "WabisabiStore", new { storeId }));
+                const response = await fetch(`${url}?amount=${amount}`);
+                const coins = await response.json();
+               let selectedInputsElement =  document.getElementById("SelectedInputs");
+               if (!selectedInputsElement){
+                selectedInputsElement = document.createElement("select");
+                selectedInputsElement.setAttribute("name", "SelectedInputs")
+                selectedInputsElement.setAttribute("id", "SelectedInputs")
+                selectedInputsElement.setAttribute("multiple", "multiple")
+                selectedInputsElement.style.display = "none";
+                ev.target.insertAdjacentElement("beforeBegin",selectedInputsElement);
+               }else{
+                    while (selectedInputsElement.options.length > 0) {
+                       selectedInputsElement.remove(0);
+                   }
+               }
+               for (const coin of coins) {
+                 selectedInputsElement.add(new Option(coin, coin, true, true),undefined);
+               }
+            document.getElementsByTagName("form")[0].submit();  
+     });
+        });
+ 
+</script>
+}

Plugins/BTCPayServer.Plugins.Wabisabi/WabisabiPlugin.cs

@@ -94,6 +94,8 @@ public class WabisabiPlugin : BaseBTCPayServerPlugin
             "store-integrations-nav"));
         applicationBuilder.AddSingleton<IUIExtension>(new UIExtension("Wabisabi/WabisabiDashboard",
             "dashboard"));
+        applicationBuilder.AddSingleton<IUIExtension>(new UIExtension("Wabisabi/WabisabiWalletSend",
+            "onchain-wallet-send"));
 
         applicationBuilder.AddSingleton<IPayoutProcessorFactory, WabisabiPayoutProcessor>();
         Logger.SetMinimumLevel(LogLevel.Info);

Plugins/BTCPayServer.Plugins.Wabisabi/WabisabiService.cs

@@ -34,7 +34,6 @@ namespace BTCPayServer.Plugins.Wabisabi
             _walletRepository = walletRepository;
             _payoutProcessorService = payoutProcessorService;
             _eventAggregator = eventAggregator;
-            _eventAggregator.Subscribe()
         }
         
         public async Task<WabisabiStoreSettings> GetWabisabiForStore(string storeId)

Plugins/BTCPayServer.Plugins.Wabisabi/WabisabiStoreController.cs

@@ -11,6 +11,8 @@ using BTCPayServer.Abstractions.Contracts;
 using BTCPayServer.Client;
 using BTCPayServer.Client.Models;
 using BTCPayServer.Common;
+using BTCPayServer.Filters;
+using BTCPayServer.Models.WalletViewModels;
 using BTCPayServer.Services;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
@@ -90,7 +92,7 @@ namespace BTCPayServer.Plugins.Wabisabi
 
                     if (Uri.TryCreate(relay, UriKind.Absolute, out var relayUri))
                     {
-                        ViewBag.DiscoveredCoordinators =await Nostr.Discover(relayUri,
+                        ViewBag.DiscoveredCoordinators = await Nostr.Discover(relayUri,
                             _explorerClientProvider.GetExplorerClient("BTC").Network.NBitcoinNetwork,
                             coordSettings.Key?.CreateXOnlyPubKey().ToHex(), CancellationToken.None);
                     }
@@ -177,10 +179,12 @@ namespace BTCPayServer.Plugins.Wabisabi
                     return View(vm);
             }
         }
+
         [Route("coinjoins")]
-        public async Task<IActionResult> ListCoinjoins(string storeId, CoinjoinsViewModel viewModel, [FromServices] WalletRepository walletRepository)
+        public async Task<IActionResult> ListCoinjoins(string storeId, CoinjoinsViewModel viewModel,
+            [FromServices] WalletRepository walletRepository)
         {
-            var objects =await  _WabisabiService.GetCoinjoinHistory(storeId);
+            var objects = await _WabisabiService.GetCoinjoinHistory(storeId);
 
             viewModel ??= new CoinjoinsViewModel();
             viewModel.Coinjoins = objects
@@ -190,6 +194,7 @@ namespace BTCPayServer.Plugins.Wabisabi
             return View(viewModel);
         }
 
+        [XFrameOptions(XFrameOptionsAttribute.XFrameOptions.SameOrigin)]
         [HttpGet("spend")]
         public async Task<IActionResult> Spend(string storeId)
         {
@@ -201,6 +206,7 @@ namespace BTCPayServer.Plugins.Wabisabi
             return View(new SpendViewModel() { });
         }
 
+        [XFrameOptions(XFrameOptionsAttribute.XFrameOptions.SameOrigin)]
         [HttpPost("spend")]
         public async Task<IActionResult> Spend(string storeId, SpendViewModel spendViewModel, string command)
         {
@@ -274,7 +280,7 @@ namespace BTCPayServer.Plugins.Wabisabi
             {
                 if (spendViewModel.SelectedCoins?.Any() is true)
                 {
-                    coins = (CoinsView)coins.FilterBy(coin =>
+                    coins = (CoinsView) coins.FilterBy(coin =>
                         spendViewModel.SelectedCoins.Contains(coin.Outpoint.ToString()));
                 }
             }
@@ -290,11 +296,11 @@ namespace BTCPayServer.Plugins.Wabisabi
                 var defaultCoinSelector = new DefaultCoinSelector();
                 var defaultSelection =
                     (defaultCoinSelector.Select(coins.Select(coin => coin.Coin).ToArray(),
-                        new Money((decimal)spendViewModel.Amount, MoneyUnit.BTC)) ?? Array.Empty<ICoin>())
+                        new Money((decimal) spendViewModel.Amount, MoneyUnit.BTC)) ?? Array.Empty<ICoin>())
-                        .ToArray();
+                    .ToArray();
                 var selector = new SmartCoinSelector(coins.ToList());
                 var smartSelection = selector.Select(defaultSelection,
-                    new Money((decimal)spendViewModel.Amount, MoneyUnit.BTC));
+                    new Money((decimal) spendViewModel.Amount, MoneyUnit.BTC));
                 spendViewModel.SelectedCoins = smartSelection.Select(coin => coin.Outpoint.ToString()).ToArray();
                 return View(spendViewModel);
             }
@@ -326,6 +332,26 @@ namespace BTCPayServer.Plugins.Wabisabi
             return View(spendViewModel);
         }
 
+        [HttpGet("select-coins")]
+        public async Task<IActionResult> ComputeCoinSelection(string storeId, decimal amount)
+        {
+            if ((await _walletProvider.GetWalletAsync(storeId)) is not BTCPayWallet wallet)
+            {
+                return NotFound();
+            }
+
+            
+            var coins = await wallet.GetAllCoins();
+            var defaultCoinSelector = new DefaultCoinSelector();
+            var defaultSelection =
+                (defaultCoinSelector.Select(coins.Select(coin => coin.Coin).ToArray(),
+                    new Money(amount, MoneyUnit.BTC)) ?? Array.Empty<ICoin>())
+                .ToArray();
+            var selector = new SmartCoinSelector(coins.ToList());
+            var smartSelection = selector.Select(defaultSelection,
+                new Money((decimal) amount, MoneyUnit.BTC));
+            return Ok(smartSelection.Select(coin => coin.Outpoint.ToString()).ToArray());
+        }
         
         public class SpendViewModel
         {