Update NBitcoin and NBXplorer

Update Icelandic

.gitignore

@@ -291,3 +291,5 @@ __pycache__/
 # Bundling JS/CSS
 BTCPayServer/wwwroot/bundles/*
 !BTCPayServer/wwwroot/bundles/.gitignore
+
+.vscode

BTCPayServer.Tests/BTCPayServer.Tests.csproj

@@ -8,7 +8,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.6.1" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.7.0" />
     <PackageReference Include="xunit" Version="2.3.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.3.1" />
   </ItemGroup>

BTCPayServer.Tests/BTCPayServerTester.cs

@@ -1,5 +1,7 @@
 using BTCPayServer.Configuration;
 using BTCPayServer.Hosting;
+using BTCPayServer.Payments;
+using BTCPayServer.Payments.Lightning;
 using BTCPayServer.Services.Invoices;
 using BTCPayServer.Services.Rates;
 using BTCPayServer.Tests.Logging;
@@ -84,7 +86,7 @@ namespace BTCPayServer.Tests
             config.AppendLine($"ltc.explorer.url={LTCNBXplorerUri.AbsoluteUri}");
             config.AppendLine($"ltc.explorer.cookiefile=0");
 
-            config.AppendLine($"internallightningnode={IntegratedLightning.AbsoluteUri}");
+            config.AppendLine($"btc.lightning={IntegratedLightning.AbsoluteUri}");
 
             if (Postgres != null)
                 config.AppendLine($"postgres=" + Postgres);
@@ -100,7 +102,7 @@ namespace BTCPayServer.Tests
                     .ConfigureServices(s =>
                     {
                         var mockRates = new MockRateProviderFactory();
-                        var btc = new MockRateProvider("BTC", new Rate("USD", 5000m));
+                        var btc = new MockRateProvider("BTC", new Rate("USD", 5000m), new Rate("CAD", 4500m));
                         var ltc = new MockRateProvider("LTC", new Rate("USD", 500m));
                         mockRates.AddMock(btc);
                         mockRates.AddMock(ltc);
@@ -118,6 +120,7 @@ namespace BTCPayServer.Tests
                     .Build();
             _Host.Start();
             InvoiceRepository = (InvoiceRepository)_Host.Services.GetService(typeof(InvoiceRepository));
+            ((LightningLikePaymentHandler)_Host.Services.GetService(typeof(IPaymentMethodHandler<LightningSupportedPaymentMethod>))).SkipP2PTest = !InContainer;
         }
         
         public string HostName
@@ -127,6 +130,7 @@ namespace BTCPayServer.Tests
         }
         public InvoiceRepository InvoiceRepository { get; private set; }
         public Uri IntegratedLightning { get; internal set; }
+        public bool InContainer { get; internal set; }
 
         public T GetService<T>()
         {

BTCPayServer.Tests/ChargeTester.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Text;
+using BTCPayServer.Payments.Lightning.Charge;
 using BTCPayServer.Payments.Lightning.CLightning;
 using NBitcoin;
 

BTCPayServer.Tests/Dockerfile

@@ -1,4 +1,4 @@
-FROM microsoft/dotnet:2.0.5-sdk-2.1.4
+FROM microsoft/dotnet:2.0.6-sdk-2.1.101-stretch
 WORKDIR /app
  # caches restore result by copying csproj file separately
 COPY BTCPayServer.Tests/BTCPayServer.Tests.csproj BTCPayServer.Tests/BTCPayServer.Tests.csproj
@@ -9,4 +9,4 @@ RUN dotnet restore
 # copies the rest of your code
 COPY . ../.
 
-ENTRYPOINT ["dotnet", "test"]
+ENTRYPOINT ["dotnet", "test"]

BTCPayServer.Tests/LightningDTester.cs

@@ -3,7 +3,6 @@ using System.Collections.Generic;
 using System.Text;
 using System.Threading.Tasks;
 using BTCPayServer.Payments.Lightning.CLightning;
-using BTCPayServer.Payments.Lightning.CLightning.RPC;
 using NBitcoin;
 
 namespace BTCPayServer.Tests

BTCPayServer.Tests/ServerTester.cs

@@ -18,7 +18,8 @@ using System.Text;
 using System.Threading.Tasks;
 using System.Threading;
 using System.Globalization;
-using BTCPayServer.Payments.Lightning.CLightning.RPC;
+using BTCPayServer.Payments.Lightning.CLightning;
+using BTCPayServer.Payments.Lightning.Charge;
 
 namespace BTCPayServer.Tests
 {
@@ -56,7 +57,9 @@ namespace BTCPayServer.Tests
             LTCExplorerClient = new ExplorerClient(NetworkProvider.GetNetwork("LTC").NBXplorerNetwork, new Uri(GetEnvironment("TESTS_LTCNBXPLORERURL", "http://127.0.0.1:32838/")));
 
             var btc = NetworkProvider.GetNetwork("BTC").NBitcoinNetwork;
-            CustomerLightningD = new CLightningRPCClient(new Uri(GetEnvironment("TEST_CUSTOMERLIGHTNINGD", "http://127.0.0.1:30992/")), btc);
+            CustomerLightningD = new CLightningRPCClient(new Uri(GetEnvironment("TEST_CUSTOMERLIGHTNINGD", "tcp://127.0.0.1:30992/")), btc);
+            MerchantLightningD = new CLightningRPCClient(new Uri(GetEnvironment("TEST_MERCHANTLIGHTNINGD", "tcp://127.0.0.1:30993/")), btc);
+
             MerchantCharge = new ChargeTester(this, "TEST_MERCHANTCHARGE", "http://api-token:foiewnccewuify@127.0.0.1:54938/", "merchant_lightningd", btc);
 
             PayTester = new BTCPayServerTester(Path.Combine(_Directory, "pay"))
@@ -68,6 +71,7 @@ namespace BTCPayServer.Tests
             };
             PayTester.Port = int.Parse(GetEnvironment("TESTS_PORT", Utils.FreeTcpPort().ToString(CultureInfo.InvariantCulture)), CultureInfo.InvariantCulture);
             PayTester.HostName = GetEnvironment("TESTS_HOSTNAME", "127.0.0.1");
+            PayTester.InContainer = bool.Parse(GetEnvironment("TESTS_INCONTAINER", "false"));
             PayTester.Start();
         }
 
@@ -89,8 +93,10 @@ namespace BTCPayServer.Tests
         {
             while (true)
             {
+                var skippedStates = new[] { "ONCHAIN", "CHANNELD_SHUTTING_DOWN", "CLOSINGD_SIGEXCHANGE", "CLOSINGD_COMPLETE", "FUNDING_SPEND_SEEN" };
                 var channel = (await CustomerLightningD.ListPeersAsync())
                             .SelectMany(p => p.Channels)
+                            .Where(c => !skippedStates.Contains(c.State ?? ""))
                             .FirstOrDefault();
                 switch (channel?.State)
                 {
@@ -117,7 +123,7 @@ namespace BTCPayServer.Tests
             }
         }
 
-        private async Task<Payments.Lightning.CLightning.GetInfoResponse> WaitLNSynched()
+        private async Task<GetInfoResponse> WaitLNSynched()
         {
             while (true)
             {
@@ -147,6 +153,7 @@ namespace BTCPayServer.Tests
         }
 
         public CLightningRPCClient CustomerLightningD { get; set; }
+        public CLightningRPCClient MerchantLightningD { get; private set; }
         public ChargeTester MerchantCharge { get; private set; }
 
         internal string GetEnvironment(string variable, string defaultValue)

BTCPayServer.Tests/TestAccount.cs

@@ -1,4 +1,5 @@
 using BTCPayServer.Controllers;
+using System.Linq;
 using BTCPayServer.Models.AccountViewModels;
 using BTCPayServer.Models.StoreViewModels;
 using BTCPayServer.Services.Invoices;
@@ -11,6 +12,8 @@ using System.Text;
 using System.Threading.Tasks;
 using Xunit;
 using NBXplorer.DerivationStrategy;
+using BTCPayServer.Payments;
+using BTCPayServer.Payments.Lightning;
 
 namespace BTCPayServer.Tests
 {
@@ -51,12 +54,19 @@ namespace BTCPayServer.Tests
             return CreateStoreAsync().GetAwaiter().GetResult();
         }
 
+        public T GetController<T>() where T : Controller
+        {
+            return parent.PayTester.GetController<T>(UserId);
+        }
+
         public async Task<StoresController> CreateStoreAsync()
         {
-            var store = parent.PayTester.GetController<StoresController>(UserId);
+            var store = parent.PayTester.GetController<UserStoresController>(UserId);
             await store.CreateStore(new CreateStoreViewModel() { Name = "Test Store" });
             StoreId = store.CreatedStoreId;
-            return store;
+            var store2 = parent.PayTester.GetController<StoresController>(UserId);
+            store2.CreatedStoreId = store.CreatedStoreId;
+            return store2;
         }
 
         public BTCPayNetwork SupportedNetwork { get; set; }
@@ -77,11 +87,9 @@ namespace BTCPayServer.Tests
 
             await store.AddDerivationScheme(StoreId, new DerivationSchemeViewModel()
             {
-                CryptoCurrency = cryptoCode,
-                DerivationSchemeFormat = "BTCPay",
                 DerivationScheme = DerivationScheme.ToString(),
                 Confirmation = true
-            });
+            }, cryptoCode);
         }
 
         public DerivationStrategyBase DerivationScheme { get; set; }
@@ -111,20 +119,23 @@ namespace BTCPayServer.Tests
         {
             get; set;
         }
-
-        public void RegisterLightningNode(string cryptoCode)
+        
+        public void RegisterLightningNode(string cryptoCode, LightningConnectionType connectionType)
         {
-            RegisterLightningNodeAsync(cryptoCode).GetAwaiter().GetResult();
+            RegisterLightningNodeAsync(cryptoCode, connectionType).GetAwaiter().GetResult();
         }
 
-        public async Task RegisterLightningNodeAsync(string cryptoCode)
+        public async Task RegisterLightningNodeAsync(string cryptoCode, LightningConnectionType connectionType)
         {
             var storeController = parent.PayTester.GetController<StoresController>(UserId);
             await storeController.AddLightningNode(StoreId, new LightningNodeViewModel()
             {
-                CryptoCurrency = "BTC",
-                Url = parent.MerchantCharge.Client.Uri.AbsoluteUri
-            }, "save");
+                Url = connectionType == LightningConnectionType.Charge ? parent.MerchantCharge.Client.Uri.AbsoluteUri :
+                      connectionType == LightningConnectionType.CLightning ? parent.MerchantLightningD.Address.AbsoluteUri
+                      : throw new NotSupportedException(connectionType.ToString())
+            }, "save", "BTC");
+            if (storeController.ModelState.ErrorCount != 0)
+                Assert.False(true, storeController.ModelState.FirstOrDefault().Value.Errors[0].ErrorMessage);
         }
-    }
+}
 }

BTCPayServer.Tests/UnitTest1.cs

@@ -30,6 +30,8 @@ using BTCPayServer.Payments;
 using BTCPayServer.Payments.Bitcoin;
 using BTCPayServer.HostedServices;
 using BTCPayServer.Payments.Lightning;
+using BTCPayServer.Models.AppViewModels;
+using BTCPayServer.Services.Apps;
 
 namespace BTCPayServer.Tests
 {
@@ -303,24 +305,95 @@ namespace BTCPayServer.Tests
                 user.GrantAccess();
                 var storeController = tester.PayTester.GetController<StoresController>(user.UserId);
                 Assert.IsType<ViewResult>(storeController.UpdateStore(user.StoreId).GetAwaiter().GetResult());
-                Assert.IsType<ViewResult>(storeController.AddLightningNode(user.StoreId).GetAwaiter().GetResult());
+                Assert.IsType<ViewResult>(storeController.AddLightningNode(user.StoreId, "BTC").GetAwaiter().GetResult());
 
                 var testResult = storeController.AddLightningNode(user.StoreId, new LightningNodeViewModel()
                 {
-                    CryptoCurrency = "BTC",
                     Url = tester.MerchantCharge.Client.Uri.AbsoluteUri
-                }, "test").GetAwaiter().GetResult();
+                }, "test", "BTC").GetAwaiter().GetResult();
                 Assert.DoesNotContain("Error", ((LightningNodeViewModel)Assert.IsType<ViewResult>(testResult).Model).StatusMessage, StringComparison.OrdinalIgnoreCase);
                 Assert.True(storeController.ModelState.IsValid);
 
                 Assert.IsType<RedirectToActionResult>(storeController.AddLightningNode(user.StoreId, new LightningNodeViewModel()
                 {
-                    CryptoCurrency = "BTC",
                     Url = tester.MerchantCharge.Client.Uri.AbsoluteUri
-                }, "save").GetAwaiter().GetResult());
+                }, "save", "BTC").GetAwaiter().GetResult());
 
                 var storeVm = Assert.IsType<Models.StoreViewModels.StoreViewModel>(Assert.IsType<ViewResult>(storeController.UpdateStore(user.StoreId).GetAwaiter().GetResult()).Model);
-                Assert.Single(storeVm.LightningNodes);
+                Assert.Single(storeVm.LightningNodes.Where(l => !string.IsNullOrEmpty(l.Address)));
+            }
+        }
+
+        [Fact]
+        public void CanParseLightningURL()
+        {
+            LightningConnectionString conn = null;
+            Assert.True(LightningConnectionString.TryParse("/test/a", out conn));
+            Assert.Equal("unix://test/a", conn.ToString());
+            Assert.Equal("unix://test/a", conn.ToUri(true).AbsoluteUri);
+            Assert.Equal("unix://test/a", conn.ToUri(false).AbsoluteUri);
+            Assert.Equal(LightningConnectionType.CLightning, conn.ConnectionType);
+
+            Assert.True(LightningConnectionString.TryParse("unix://test/a", out conn));
+            Assert.Equal("unix://test/a", conn.ToString());
+            Assert.Equal("unix://test/a", conn.ToUri(true).AbsoluteUri);
+            Assert.Equal("unix://test/a", conn.ToUri(false).AbsoluteUri);
+            Assert.Equal(LightningConnectionType.CLightning, conn.ConnectionType);
+
+            Assert.True(LightningConnectionString.TryParse("unix://test/a", out conn));
+            Assert.Equal("unix://test/a", conn.ToString());
+            Assert.Equal("unix://test/a", conn.ToUri(true).AbsoluteUri);
+            Assert.Equal("unix://test/a", conn.ToUri(false).AbsoluteUri);
+            Assert.Equal(LightningConnectionType.CLightning, conn.ConnectionType);
+
+            Assert.True(LightningConnectionString.TryParse("tcp://test/a", out conn));
+            Assert.Equal("tcp://test/a", conn.ToString());
+            Assert.Equal("tcp://test/a", conn.ToUri(true).AbsoluteUri);
+            Assert.Equal("tcp://test/a", conn.ToUri(false).AbsoluteUri);
+            Assert.Equal(LightningConnectionType.CLightning, conn.ConnectionType);
+
+            Assert.True(LightningConnectionString.TryParse("http://aaa:bbb@test/a", out conn));
+            Assert.Equal("http://aaa:bbb@test/a", conn.ToString());
+            Assert.Equal("http://aaa:bbb@test/a", conn.ToUri(true).AbsoluteUri);
+            Assert.Equal("http://test/a", conn.ToUri(false).AbsoluteUri);
+            Assert.Equal(LightningConnectionType.Charge, conn.ConnectionType);
+            Assert.Equal("aaa", conn.Username);
+            Assert.Equal("bbb", conn.Password);
+
+            Assert.False(LightningConnectionString.TryParse("lol://aaa:bbb@test/a", out conn));
+            Assert.False(LightningConnectionString.TryParse("https://test/a", out conn));
+            Assert.False(LightningConnectionString.TryParse("unix://dwewoi:dwdwqd@test/a", out conn));
+        }
+
+        [Fact]
+        public void CanSendLightningPayment2()
+        {
+            using (var tester = ServerTester.Create())
+            {
+                tester.Start();
+                tester.PrepareLightning();
+                var user = tester.NewAccount();
+                user.GrantAccess();
+                user.RegisterLightningNode("BTC", LightningConnectionType.CLightning);
+                user.RegisterDerivationScheme("BTC");
+
+                var invoice = user.BitPay.CreateInvoice(new Invoice()
+                {
+                    Price = 0.01,
+                    Currency = "USD",
+                    PosData = "posData",
+                    OrderId = "orderId",
+                    ItemDesc = "Some description"
+                });
+
+                tester.SendLightningPayment(invoice);
+
+                Eventually(() =>
+                {
+                    var localInvoice = user.BitPay.GetInvoice(invoice.Id);
+                    Assert.Equal("complete", localInvoice.Status);
+                    Assert.Equal("False", localInvoice.ExceptionStatus.ToString());
+                });
             }
         }
 
@@ -334,7 +407,7 @@ namespace BTCPayServer.Tests
                 tester.PrepareLightning();
                 var user = tester.NewAccount();
                 user.GrantAccess();
-                user.RegisterLightningNode("BTC");
+                user.RegisterLightningNode("BTC", LightningConnectionType.Charge);
                 user.RegisterDerivationScheme("BTC");
 
                 var invoice = user.BitPay.CreateInvoice(new Invoice()
@@ -735,6 +808,185 @@ namespace BTCPayServer.Tests
             }
         }
 
+        [Fact]
+        public void CanParseCurrencyValue()
+        {
+            Assert.True(CurrencyValue.TryParse("1.50USD", out var result));
+            Assert.Equal("1.50 USD", result.ToString());
+            Assert.True(CurrencyValue.TryParse("1.50 USD", out result));
+            Assert.Equal("1.50 USD", result.ToString());
+            Assert.True(CurrencyValue.TryParse("1.50 usd", out result));
+            Assert.Equal("1.50 USD", result.ToString());
+            Assert.True(CurrencyValue.TryParse("1 usd", out result));
+            Assert.Equal("1 USD", result.ToString());
+            Assert.True(CurrencyValue.TryParse("1usd", out result));
+            Assert.Equal("1 USD", result.ToString());
+            Assert.True(CurrencyValue.TryParse("1.501 usd", out result));
+            Assert.Equal("1.50 USD", result.ToString());
+            Assert.False(CurrencyValue.TryParse("1.501 WTFF", out result));
+            Assert.False(CurrencyValue.TryParse("1,501 usd", out result));
+            Assert.False(CurrencyValue.TryParse("1.501", out result));
+        }
+
+        [Fact]
+        public void CanParseDerivationScheme()
+        {
+            var parser = new DerivationSchemeParser(Network.TestNet, NBXplorer.ChainType.Test);
+            NBXplorer.DerivationStrategy.DerivationStrategyBase result;
+            //  Passing electrum stuff
+            // Native
+            result = parser.Parse("zpub6nL6PUGurpU3DfPDSZaRS6WshpbNc9ctCFFzrCn54cssnheM31SZJZUcFHKtjJJNhAueMbh6ptFMfy1aeiMQJr3RJ4DDt1hAPx7sMTKV48t");
+            Assert.Equal("tpubD93CJNkmGjLXnsBqE2zGDqfEh1Q8iJ8wueordy3SeWt1RngbbuxXCsqASuVWFywmfoCwUE1rSfNJbaH4cBNcbp8WcyZgPiiRSTazLGL8U9w", result.ToString());
+            // P2SH
+            result = parser.Parse("ypub6QqdH2c5z79681jUgdxjGJzGW9zpL4ryPCuhtZE4GpvrJoZqM823XQN6iSQeVbbbp2uCRQ9UgpeMcwiyV6qjvxTWVcxDn2XEAnioMUwsrQ5");
+            Assert.Equal("tpubD6NzVbkrYhZ4YWjDJUACG9E8fJx2NqNY1iynTiPKEjJrzzRKAgha3nNnwGXr2BtvCJKJHW4nmG7rRqc2AGGy2AECgt16seMyV2FZivUmaJg-[p2sh]", result.ToString());
+            result = parser.Parse("xpub661MyMwAqRbcGeVGU5e5KBcau1HHEUGf9Wr7k4FyLa8yRPNQrrVa7Ndrgg8Afbe2UYXMSL6tJBFd2JewwWASsePPLjkcJFL1tTVEs3UQ23X");
+            Assert.Equal("tpubD6NzVbkrYhZ4YSg7vGdAX6wxE8NwDrmih9SR6cK7gUtsAg37w5LfFpJgviCxC6bGGT4G3uckqH5fiV9ZLN1gm5qgQLVuymzFUR5ed7U7ksu-[legacy]", result.ToString());
+            ////////////////
+
+            var tpub = "tpubD6NzVbkrYhZ4Wc65tjhmcKdWFauAo7bGLRTxvggygkNyp6SMGutJp7iociwsinU33jyNBp1J9j2hJH5yQsayfiS3LEU2ZqXodAcnaygra8o";
+
+            result = parser.Parse(tpub);
+            Assert.Equal(tpub, result.ToString());
+            parser.HintScriptPubKey = BitcoinAddress.Create("tb1q4s33amqm8l7a07zdxcunqnn3gcsjcfz3xc573l", parser.Network).ScriptPubKey;
+            result = parser.Parse(tpub);
+            Assert.Equal(tpub, result.ToString());
+
+            parser.HintScriptPubKey = BitcoinAddress.Create("2N2humNio3YTApSfY6VztQ9hQwDnhDvaqFQ", parser.Network).ScriptPubKey;
+            result = parser.Parse(tpub);
+            Assert.Equal($"{tpub}-[p2sh]", result.ToString());
+
+            parser.HintScriptPubKey = BitcoinAddress.Create("mwD8bHS65cdgUf6rZUUSoVhi3wNQFu1Nfi", parser.Network).ScriptPubKey;
+            result = parser.Parse(tpub);
+            Assert.Equal($"{tpub}-[legacy]", result.ToString());
+
+            parser.HintScriptPubKey = BitcoinAddress.Create("2N2humNio3YTApSfY6VztQ9hQwDnhDvaqFQ", parser.Network).ScriptPubKey;
+            result = parser.Parse($"{tpub}-[legacy]");
+            Assert.Equal($"{tpub}-[p2sh]", result.ToString());
+
+            result = parser.Parse(tpub);
+            Assert.Equal($"{tpub}-[p2sh]", result.ToString());
+        }
+
+        [Fact]
+        public void CanSetPaymentMethodLimits()
+        {
+            using (var tester = ServerTester.Create())
+            {
+                tester.Start();
+                var user = tester.NewAccount();
+                user.GrantAccess();
+                user.RegisterDerivationScheme("BTC");
+                user.RegisterLightningNode("BTC", LightningConnectionType.Charge);
+                var vm = Assert.IsType<CheckoutExperienceViewModel>(Assert.IsType<ViewResult>(user.GetController<StoresController>().CheckoutExperience(user.StoreId).Result).Model);
+                vm.LightningMaxValue = "2 USD";
+                vm.OnChainMinValue = "5 USD";
+                Assert.IsType<RedirectToActionResult>(user.GetController<StoresController>().CheckoutExperience(user.StoreId, vm).Result);
+
+                var invoice = user.BitPay.CreateInvoice(new Invoice()
+                {
+                    Price = 1.5,
+                    Currency = "USD",
+                    PosData = "posData",
+                    OrderId = "orderId",
+                    ItemDesc = "Some description",
+                    FullNotifications = true
+                }, Facade.Merchant);
+
+                Assert.Single(invoice.CryptoInfo);
+                Assert.Equal(PaymentTypes.LightningLike.ToString(), invoice.CryptoInfo[0].PaymentType);
+
+                invoice = user.BitPay.CreateInvoice(new Invoice()
+                {
+                    Price = 5.5,
+                    Currency = "USD",
+                    PosData = "posData",
+                    OrderId = "orderId",
+                    ItemDesc = "Some description",
+                    FullNotifications = true
+                }, Facade.Merchant);
+
+                Assert.Single(invoice.CryptoInfo);
+                Assert.Equal(PaymentTypes.BTCLike.ToString(), invoice.CryptoInfo[0].PaymentType);
+            }
+        }
+
+        [Fact]
+        public void CanUsePoSApp()
+        {
+            using (var tester = ServerTester.Create())
+            {
+                tester.Start();
+                var user = tester.NewAccount();
+                user.GrantAccess();
+                user.RegisterDerivationScheme("BTC");
+                var apps = user.GetController<AppsController>();
+                var vm = Assert.IsType<CreateAppViewModel>(Assert.IsType<ViewResult>(apps.CreateApp().Result).Model);
+                vm.Name = "test";
+                vm.SelectedAppType = AppType.PointOfSale.ToString();
+                Assert.IsType<RedirectToActionResult>(apps.CreateApp(vm).Result);
+                var appId = Assert.IsType<ListAppsViewModel>(Assert.IsType<ViewResult>(apps.ListApps().Result).Model).Apps[0].Id;
+                var vmpos = Assert.IsType<UpdatePointOfSaleViewModel>(Assert.IsType<ViewResult>(apps.UpdatePointOfSale(appId).Result).Model);
+                vmpos.Title = "hello";
+                vmpos.Currency = "CAD";
+                vmpos.Template =
+                    "apple:\n" +
+                    "  price: 5.0\n" +
+                    "  title: good apple\n" +
+                    "orange:\n" +
+                    "  price: 10.0\n";
+                Assert.IsType<RedirectToActionResult>(apps.UpdatePointOfSale(appId, vmpos).Result);
+                vmpos = Assert.IsType<UpdatePointOfSaleViewModel>(Assert.IsType<ViewResult>(apps.UpdatePointOfSale(appId).Result).Model);
+                Assert.Equal("hello", vmpos.Title);
+                var vmview = Assert.IsType<ViewPointOfSaleViewModel>(Assert.IsType<ViewResult>(apps.ViewPointOfSale(appId).Result).Model);
+                Assert.Equal("hello", vmview.Title);
+                Assert.Equal(2, vmview.Items.Length);
+                Assert.Equal("good apple", vmview.Items[0].Title);
+                Assert.Equal("orange", vmview.Items[1].Title);
+                Assert.Equal(10.0m, vmview.Items[1].Price.Value);
+                Assert.Equal("$5.00", vmview.Items[0].Price.Formatted);
+                Assert.IsType<RedirectResult>(apps.ViewPointOfSale(appId, "orange").Result);
+                var invoice = user.BitPay.GetInvoices().First();
+                Assert.Equal(10.00, invoice.Price);
+                Assert.Equal("CAD", invoice.Currency);
+                Assert.Equal("orange", invoice.ItemDesc);
+            }
+        }
+
+        [Fact]
+        public void CanCreateAndDeleteApps()
+        {
+            using (var tester = ServerTester.Create())
+            {
+                tester.Start();
+                var user = tester.NewAccount();
+                user.GrantAccess();
+                var user2 = tester.NewAccount();
+                user2.GrantAccess();
+                var apps = user.GetController<AppsController>();
+                var apps2 = user2.GetController<AppsController>();
+                var vm = Assert.IsType<CreateAppViewModel>(Assert.IsType<ViewResult>(apps.CreateApp().Result).Model);
+                Assert.NotNull(vm.SelectedAppType);
+                Assert.Null(vm.Name);
+                vm.Name = "test";
+                var redirectToAction = Assert.IsType<RedirectToActionResult>(apps.CreateApp(vm).Result);
+                Assert.Equal(nameof(apps.ListApps), redirectToAction.ActionName);
+                var appList = Assert.IsType<ListAppsViewModel>(Assert.IsType<ViewResult>(apps.ListApps().Result).Model);
+                var appList2 = Assert.IsType<ListAppsViewModel>(Assert.IsType<ViewResult>(apps2.ListApps().Result).Model);
+                Assert.Single(appList.Apps);
+                Assert.Empty(appList2.Apps);
+                Assert.Equal("test", appList.Apps[0].AppName);
+                Assert.True(appList.Apps[0].IsOwner);
+                Assert.Equal(user.StoreId, appList.Apps[0].StoreId);
+                Assert.IsType<NotFoundResult>(apps2.DeleteApp(appList.Apps[0].Id).Result);
+                Assert.IsType<ViewResult>(apps.DeleteApp(appList.Apps[0].Id).Result);
+                redirectToAction = Assert.IsType<RedirectToActionResult>(apps.DeleteAppPost(appList.Apps[0].Id).Result);
+                Assert.Equal(nameof(apps.ListApps), redirectToAction.ActionName);
+                appList = Assert.IsType<ListAppsViewModel>(Assert.IsType<ViewResult>(apps.ListApps().Result).Model);
+                Assert.Empty(appList.Apps);
+            }
+        }
+
         [Fact]
         public void InvoiceFlowThroughDifferentStatesCorrectly()
         {

BTCPayServer.Tests/docker-compose.yml

@@ -17,14 +17,19 @@ services:
       TESTS_POSTGRES: User ID=postgres;Host=postgres;Port=5432;Database=btcpayserver
       TESTS_PORT: 80
       TESTS_HOSTNAME: tests
-      TEST_CUSTOMERLIGHTNINGD: http://customer_lightningd:9835/
+      TEST_MERCHANTLIGHTNINGD: "/etc/merchant_lightningd_datadir/lightning-rpc"
+      TEST_CUSTOMERLIGHTNINGD: "/etc/customer_lightningd_datadir/lightning-rpc"
       TEST_MERCHANTCHARGE: http://api-token:foiewnccewuify@lightning-charged:9112/
+      TESTS_INCONTAINER: "true"
     expose:
       - "80"
     links:
       - dev
     extra_hosts: 
       - "tests:127.0.0.1"
+    volumes:
+      - "customer_lightningd_datadir:/etc/customer_lightningd_datadir"
+      - "merchant_lightningd_datadir:/etc/merchant_lightningd_datadir"
 
   # The dev container is not actually used, it is just handy to run `docker-compose up dev` to start all services
   dev: 
@@ -41,7 +46,7 @@ services:
       - lightning-charged
 
   nbxplorer:
-    image: nicolasdorier/nbxplorer:1.0.1.22
+    image: nicolasdorier/nbxplorer:1.0.1.25
     ports:
       - "32838:32838"
     expose: 
@@ -84,12 +89,14 @@ services:
       - "bitcoin_datadir:/data"
 
   customer_lightningd:
-    image: nicolasdorier/clightning
+    image: nicolasdorier/clightning:0.0.0.2
     environment: 
+      EXPOSE_TCP: "true"
       LIGHTNINGD_OPT: |
         bitcoin-datadir=/etc/bitcoin
         bitcoin-rpcconnect=bitcoind
         network=regtest
+        ipaddr=customer_lightningd
         log-level=debug
     ports:
       - "30992:9835" # api port
@@ -103,11 +110,10 @@ services:
       - bitcoind
 
   lightning-charged:
-    image: shesek/lightning-charge:0.3.5
+    image: shesek/lightning-charge:0.3.7
     environment:
       NETWORK: regtest
       API_TOKEN: foiewnccewuify
-      SKIP_BITCOIND: 1
       BITCOIND_RPCCONNECT: bitcoind
     volumes:
       - "bitcoin_datadir:/etc/bitcoin"
@@ -123,11 +129,13 @@ services:
       - merchant_lightningd
 
   merchant_lightningd:
-    image: nicolasdorier/clightning
+    image: nicolasdorier/clightning:0.0.0.2
     environment: 
+      EXPOSE_TCP: "true"
       LIGHTNINGD_OPT: |
         bitcoin-datadir=/etc/bitcoin
         bitcoin-rpcconnect=bitcoind
+        ipaddr=merchant_lightningd
         network=regtest
         log-level=debug
     ports:
@@ -142,7 +150,7 @@ services:
       - bitcoind
 
   litecoind:
-    image: nicolasdorier/docker-litecoin:0.14.2
+    image: nicolasdorier/docker-litecoin:0.15.1
     environment:
       BITCOIN_EXTRA_ARGS: |
         rpcuser=ceiwHEbqWI83

BTCPayServer.Tests/docker-merchant-lightning-cli.ps1

@@ -0,0 +1 @@
+docker exec -ti btcpayservertests_merchant_lightningd_1 lightning-cli $args

BTCPayServer.Tests/docker-merchant-lightning-cli.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+
+docker exec -ti btcpayservertests_merchant_lightningd_1 lightning-cli "$@"

BTCPayServer/BTCPayNetwork.cs

@@ -68,7 +68,6 @@ namespace BTCPayServer
         public BTCPayDefaultSettings DefaultSettings { get; set; }
         public KeyPath CoinType { get; internal set; }
         public int MaxTrackedConfirmation { get; internal set; } = 6;
-        public string CLightningNetworkName { get; internal set; }
 
         public override string ToString()
         {

BTCPayServer/BTCPayNetworkProvider.Bitcoin.cs

@@ -28,10 +28,7 @@ namespace BTCPayServer
                 CryptoImagePath = "imlegacy/bitcoin-symbol.svg",
                 LightningImagePath = "imlegacy/btc-lightning.svg",
                 DefaultSettings = BTCPayDefaultSettings.GetDefaultSettings(NBXplorerNetworkProvider.ChainType),
-                CoinType = NBXplorerNetworkProvider.ChainType == ChainType.Main ? new KeyPath("0'") : new KeyPath("1'"),
-                CLightningNetworkName = ChainType == ChainType.Main ? "bitcoin" :
-                                        ChainType == ChainType.Test ? "testnet" :
-                                        ChainType == ChainType.Regtest ? "regtest" : null
+                CoinType = NBXplorerNetworkProvider.ChainType == ChainType.Main ? new KeyPath("0'") : new KeyPath("1'")
             });
         }
     }

BTCPayServer/BTCPayNetworkProvider.Litecoin.cs

@@ -12,7 +12,7 @@ namespace BTCPayServer
     {
         public void InitLitecoin()
         {
-            NBXplorer.Altcoins.Litecoin.Networks.EnsureRegistered();
+            NBitcoin.Altcoins.Litecoin.EnsureRegistered();
             var ltcRate = new CoinAverageRateProvider("LTC");
 
             var nbxplorerNetwork = NBXplorerNetworkProvider.GetFromCryptoCode("LTC");
@@ -27,9 +27,7 @@ namespace BTCPayServer
                 CryptoImagePath = "imlegacy/litecoin-symbol.svg",
                 LightningImagePath = "imlegacy/ltc-lightning.svg",
                 DefaultSettings = BTCPayDefaultSettings.GetDefaultSettings(NBXplorerNetworkProvider.ChainType),
-                CoinType = NBXplorerNetworkProvider.ChainType == ChainType.Main ? new KeyPath("2'") : new KeyPath("3'"),
-                CLightningNetworkName = ChainType == ChainType.Main ? "litecoin" :
-                                        ChainType == ChainType.Test ? "litecoin-testnet" : null
+                CoinType = NBXplorerNetworkProvider.ChainType == ChainType.Main ? new KeyPath("2'") : new KeyPath("3'")
             });
         }
     }

BTCPayServer/BTCPayServer.csproj

@@ -2,18 +2,22 @@
   <PropertyGroup>
     <OutputType>Exe</OutputType>
     <TargetFramework>netcoreapp2.0</TargetFramework>
-		<Version>1.0.1.50</Version>
+		<Version>1.0.1.74</Version>
     <NoWarn>NU1701,CA1816,CA1308,CA1810,CA2208</NoWarn>
   </PropertyGroup>
   <ItemGroup>
     <Compile Remove="Build\dockerfiles\**" />
     <Compile Remove="wwwroot\bundles\jqueryvalidate\**" />
+    <Compile Remove="wwwroot\vendor\jquery-nice-select\**" />
     <Content Remove="Build\dockerfiles\**" />
     <Content Remove="wwwroot\bundles\jqueryvalidate\**" />
+    <Content Remove="wwwroot\vendor\jquery-nice-select\**" />
     <EmbeddedResource Remove="Build\dockerfiles\**" />
     <EmbeddedResource Remove="wwwroot\bundles\jqueryvalidate\**" />
+    <EmbeddedResource Remove="wwwroot\vendor\jquery-nice-select\**" />
     <None Remove="Build\dockerfiles\**" />
     <None Remove="wwwroot\bundles\jqueryvalidate\**" />
+    <None Remove="wwwroot\vendor\jquery-nice-select\**" />
   </ItemGroup>
   <ItemGroup>
     <None Remove="Currencies.txt" />
@@ -31,10 +35,10 @@
     <PackageReference Include="Meziantou.AspNetCore.BundleTagHelpers" Version="1.0.1" />
     <PackageReference Include="Microsoft.Extensions.Logging.Filter" Version="1.1.2" />
     <PackageReference Include="Microsoft.NetCore.Analyzers" Version="2.6.0" />
-    <PackageReference Include="NBitcoin" Version="4.0.0.65" />
+    <PackageReference Include="NBitcoin" Version="4.1.0.3" />
     <PackageReference Include="NBitpayClient" Version="1.0.0.18" />	  
     <PackageReference Include="DBreeze" Version="1.87.0" />
-    <PackageReference Include="NBXplorer.Client" Version="1.0.1.16" />
+    <PackageReference Include="NBXplorer.Client" Version="1.0.1.17" />
     <PackageReference Include="NicolasDorier.CommandLine" Version="1.0.0.1" />
     <PackageReference Include="NicolasDorier.CommandLine.Configuration" Version="1.0.0.2" />
     <PackageReference Include="NicolasDorier.StandardConfiguration" Version="1.0.0.13" />
@@ -45,8 +49,9 @@
   </ItemGroup>
 
 	<ItemGroup>
-		<PackageReference Include="Microsoft.AspNetCore.All" Version="2.0.5" />
-		<PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="2.0.1" PrivateAssets="All" />
+		<PackageReference Include="Microsoft.AspNetCore.All" Version="2.0.6" />
+		<PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="2.0.2" PrivateAssets="All" />
+		<PackageReference Include="YamlDotNet" Version="4.3.1" />
 	</ItemGroup>
 
 	<ItemGroup>
@@ -56,7 +61,7 @@
 	</ItemGroup>
 
 	<ItemGroup>
-	  <None Include="wwwroot\js\core.js" />
+	  <None Include="wwwroot\js\checkout\core.js" />
 	  <None Include="wwwroot\js\creative.js" />
 	  <None Include="wwwroot\js\creative.min.js" />
 	  <None Include="wwwroot\js\site.js" />

BTCPayServer/Configuration/BTCPayServerOptions.cs

@@ -10,6 +10,7 @@ using System.Text;
 using StandardConfiguration;
 using Microsoft.Extensions.Configuration;
 using NBXplorer;
+using BTCPayServer.Payments.Lightning;
 
 namespace BTCPayServer.Configuration
 {
@@ -73,6 +74,17 @@ namespace BTCPayServer.Configuration
                 setting.ExplorerUri = conf.GetOrDefault<Uri>($"{net.CryptoCode}.explorer.url", net.NBXplorerNetwork.DefaultSettings.DefaultUrl);
                 setting.CookieFile = conf.GetOrDefault<string>($"{net.CryptoCode}.explorer.cookiefile", net.NBXplorerNetwork.DefaultSettings.DefaultCookieFile);
                 NBXplorerConnectionSettings.Add(setting);
+                var lightning = conf.GetOrDefault<string>($"{net.CryptoCode}.lightning", string.Empty);
+                if(lightning.Length != 0)
+                {
+                    if(!LightningConnectionString.TryParse(lightning, out var connectionString, out var error))
+                    {
+                        throw new ConfigException($"Invalid setting {net.CryptoCode}.lightning, you need to pass either " +
+                            $"the absolute path to the unix socket of a running CLightning instance (eg. /root/.lightning/lightning-rpc), " +
+                            $"or the url to a charge server with crendetials (eg. https://apitoken@API_TOKEN_SECRET:charge.example.com/)");
+                    }
+                    InternalLightningByCryptoCode.Add(net.CryptoCode, connectionString);
+                }
             }
 
             Logs.Configuration.LogInformation("Supported chains: " + String.Join(',', supportedChains.ToArray()));
@@ -80,10 +92,15 @@ namespace BTCPayServer.Configuration
             PostgresConnectionString = conf.GetOrDefault<string>("postgres", null);
             BundleJsCss = conf.GetOrDefault<bool>("bundlejscss", true);
             ExternalUrl = conf.GetOrDefault<Uri>("externalurl", null);
-            InternalLightningNode = conf.GetOrDefault<Uri>("internallightningnode", null);
-        }
 
-        public Uri InternalLightningNode { get; set; }
+            RootPath = conf.GetOrDefault<string>("rootpath", "/");
+
+            var old = conf.GetOrDefault<Uri>("internallightningnode", null);
+            if(old != null)
+                throw new ConfigException($"internallightningnode should not be used anymore, use btclightning instead");
+        }
+        public string RootPath { get; set; }
+        public Dictionary<string, LightningConnectionString> InternalLightningByCryptoCode { get; set; } = new Dictionary<string, LightningConnectionString>();
 
         public BTCPayNetworkProvider NetworkProvider { get; set; }
         public string PostgresConnectionString

BTCPayServer/Configuration/DefaultConfiguration.cs

@@ -31,15 +31,16 @@ namespace BTCPayServer.Configuration
             app.Option("--regtest | -regtest", $"Use regtest (Deprecated, use --network instead)", CommandOptionType.BoolValue);
             app.Option("--chains | -c", $"Chains to support comma separated (default: btc, available: {chains})", CommandOptionType.SingleValue);
             app.Option("--postgres", $"Connection string to postgres database (default: sqlite is used)", CommandOptionType.SingleValue);
+            app.Option("--externalurl", $"The expected external url of this service, to use if BTCPay is behind a reverse proxy (default: empty, use the incoming HTTP request to figure out)", CommandOptionType.SingleValue);
+            app.Option("--bundlejscss", $"Bundle javascript and css files for better performance (default: true)", CommandOptionType.SingleValue);
+            app.Option("--rootpath", "The root path in the URL to access BTCPay (default: /)", CommandOptionType.SingleValue);
             foreach (var network in provider.GetAll())
             {
                 var crypto = network.CryptoCode.ToLowerInvariant();
                 app.Option($"--{crypto}explorerurl", $"Url of the NBxplorer for {network.CryptoCode} (default: {network.NBXplorerNetwork.DefaultSettings.DefaultUrl})", CommandOptionType.SingleValue);
                 app.Option($"--{crypto}explorercookiefile", $"Path to the cookie file (default: {network.NBXplorerNetwork.DefaultSettings.DefaultCookieFile})", CommandOptionType.SingleValue);
+                app.Option($"--{crypto}lightning", $"Easy configuration of lightning for the server adnistrator: Must be a unix socket of CLightning (lightning-rpc) or URL to a charge server (default: empty)", CommandOptionType.SingleValue);
             }
-            app.Option("--externalurl", $"The expected external url of this service, to use if BTCPay is behind a reverse proxy (default: empty, use the incoming HTTP request to figure out)", CommandOptionType.SingleValue);
-            app.Option("--internallightningnode", $"An internal lightning node which can be used without https requirement and easily configured by the admin (default: empty)", CommandOptionType.SingleValue);
-            app.Option("--bundlejscss", $"Bundle javascript and css files for better performance (default: true)", CommandOptionType.SingleValue);
             return app;
         }
 
@@ -105,6 +106,8 @@ namespace BTCPayServer.Configuration
             {
                 builder.AppendLine($"#{n.CryptoCode}.explorer.url={n.NBXplorerNetwork.DefaultSettings.DefaultUrl}");
                 builder.AppendLine($"#{n.CryptoCode}.explorer.cookiefile={ n.NBXplorerNetwork.DefaultSettings.DefaultCookieFile}");
+                builder.AppendLine($"#{n.CryptoCode}.lightning=/root/.lightning/lightning-rpc");
+                builder.AppendLine($"#{n.CryptoCode}.lightning=https://apitoken:API_TOKEN_SECRET@charge.example.com/");
             }
             return builder.ToString();
         }

BTCPayServer/Controllers/AppsController.PointOfSale.cs

@@ -0,0 +1,198 @@
+using System;
+using Microsoft.EntityFrameworkCore;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using BTCPayServer.Data;
+using BTCPayServer.Models;
+using BTCPayServer.Models.AppViewModels;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using NBitcoin.DataEncoders;
+using NBitcoin;
+using BTCPayServer.Services.Apps;
+using Newtonsoft.Json;
+using YamlDotNet.RepresentationModel;
+using System.IO;
+using BTCPayServer.Services.Rates;
+using System.Globalization;
+
+namespace BTCPayServer.Controllers
+{
+    public partial class AppsController
+    {
+        public class PointOfSaleSettings
+        {
+            public PointOfSaleSettings()
+            {
+                Title = "My awesome Point of Sale";
+                Currency = "USD";
+                Template =
+                    "tea:\n" +
+                    "  price: 0.02\n" +
+                    "  title: Green Tea # title is optional, defaults to the keys\n\n" +
+                    "coffee:\n" +
+                    "  price: 1\n\n" +
+                    "bamba:\n" +
+                    "  price: 3\n\n" +
+                    "beer:\n" +
+                    "  price: 7\n\n" +
+                    "hat:\n" +
+                    "  price: 15\n\n" +
+                    "tshirt:\n" +
+                    "  price: 25";
+            }
+            public string Title { get; set; }
+            public string Currency { get; set; }
+            public string Template { get; set; }
+        }
+
+        [HttpGet]
+        [Route("{appId}/settings/pos")]
+        public async Task<IActionResult> UpdatePointOfSale(string appId)
+        {
+            var app = await GetOwnedApp(appId, AppType.PointOfSale);
+            if (app == null)
+                return NotFound();
+
+            var settings = app.GetSettings<PointOfSaleSettings>();
+            return View(new UpdatePointOfSaleViewModel() { Title = settings.Title, Currency = settings.Currency, Template = settings.Template });
+        }
+        [HttpPost]
+        [Route("{appId}/settings/pos")]
+        public async Task<IActionResult> UpdatePointOfSale(string appId, UpdatePointOfSaleViewModel vm)
+        {
+            if (_Currencies.GetCurrencyData(vm.Currency) == null)
+                ModelState.AddModelError(nameof(vm.Currency), "Invalid currency");
+            try
+            {
+                Parse(vm.Template, vm.Currency);
+            }
+            catch
+            {
+                ModelState.AddModelError(nameof(vm.Template), "Invalid template");
+            }
+            if (!ModelState.IsValid)
+            {
+                return View(vm);
+            }
+            var app = await GetOwnedApp(appId, AppType.PointOfSale);
+            if (app == null)
+                return NotFound();
+            app.SetSettings(new PointOfSaleSettings()
+            {
+                Title = vm.Title,
+                Currency = vm.Currency.ToUpperInvariant(),
+                Template = vm.Template
+            });
+            await UpdateAppSettings(app);
+            StatusMessage = "App updated";
+            return RedirectToAction(nameof(UpdatePointOfSale));
+        }
+
+        [HttpGet]
+        [Route("{appId}/pos")]
+        public async Task<IActionResult> ViewPointOfSale(string appId)
+        {
+            var app = await GetApp(appId, AppType.PointOfSale);
+            if (app == null)
+                return NotFound();
+            var settings = app.GetSettings<PointOfSaleSettings>();
+            return View(new ViewPointOfSaleViewModel()
+            {
+                Title = settings.Title,
+                Items = Parse(settings.Template, settings.Currency)
+            });
+        }
+
+        private async Task<AppData> GetApp(string appId, AppType appType)
+        {
+            using (var ctx = _ContextFactory.CreateContext())
+            {
+                return await ctx.Apps
+                                .Where(us => us.Id == appId && us.AppType == appType.ToString())
+                                .FirstOrDefaultAsync();
+            }
+        }
+
+        private ViewPointOfSaleViewModel.Item[] Parse(string template, string currency)
+        {
+            var input = new StringReader(template);
+            YamlStream stream = new YamlStream();
+            stream.Load(input);
+            var root = (YamlMappingNode)stream.Documents[0].RootNode;
+            return root
+                .Children
+                .Select(kv => new { Key = (kv.Key as YamlScalarNode)?.Value, Value = kv.Value as YamlMappingNode })
+                .Where(kv => kv.Value != null)
+                .Select(c => new ViewPointOfSaleViewModel.Item()
+                {
+                    Id = c.Key,
+                    Title = c.Value.Children
+                             .Select(kv => new { Key = (kv.Key as YamlScalarNode)?.Value, Value = kv.Value as YamlScalarNode })
+                             .Where(kv => kv.Value != null)
+                             .Where(cc => cc.Key == "title")
+                             .FirstOrDefault()?.Value?.Value ?? c.Key,
+                    Price = c.Value.Children
+                             .Select(kv => new { Key = (kv.Key as YamlScalarNode)?.Value, Value = kv.Value as YamlScalarNode })
+                             .Where(kv => kv.Value != null)
+                             .Where(cc => cc.Key == "price")
+                             .Select(cc => new ViewPointOfSaleViewModel.Item.ItemPrice()
+                             {
+                                 Value = decimal.Parse(cc.Value.Value, CultureInfo.InvariantCulture),
+                                 Formatted = FormatCurrency(cc.Value.Value, currency)
+                             })
+                             .Single()
+                })
+                .ToArray();
+        }
+
+        string FormatCurrency(string price, string currency)
+        {
+            return decimal.Parse(price, CultureInfo.InvariantCulture).ToString("C", _Currencies.GetCurrencyProvider(currency));
+        }
+
+        [HttpPost]
+        [Route("{appId}/pos")]
+        public async Task<IActionResult> ViewPointOfSale(string appId, string choiceKey)
+        {
+            var app = await GetApp(appId, AppType.PointOfSale);
+            if (app == null)
+                return NotFound();
+            var settings = app.GetSettings<PointOfSaleSettings>();
+            var choices = Parse(settings.Template, settings.Currency);
+            var choice = choices.FirstOrDefault(c => c.Id == choiceKey);
+            if (choice == null)
+                return NotFound();
+
+            var store = await GetStore(app);
+            var invoice = await _InvoiceController.CreateInvoiceCore(new NBitpayClient.Invoice()
+            {
+                ItemDesc = choice.Title,
+                Currency = settings.Currency,
+                Price = (double)choice.Price.Value,
+            }, store, HttpContext.Request.GetAbsoluteRoot());
+            return Redirect(invoice.Data.Url);
+        }
+
+        private async Task<StoreData> GetStore(AppData app)
+        {
+            using (var ctx = _ContextFactory.CreateContext())
+            {
+                return await ctx.Stores.FirstOrDefaultAsync(s => s.Id == app.StoreDataId);
+            }
+        }
+
+        private async Task UpdateAppSettings(AppData app)
+        {
+            using (var ctx = _ContextFactory.CreateContext())
+            {
+                ctx.Apps.Add(app);
+                ctx.Entry<AppData>(app).State = EntityState.Modified;
+                ctx.Entry<AppData>(app).Property(a => a.Settings).IsModified = true;
+                await ctx.SaveChangesAsync();
+            }
+        }
+    }
+}

BTCPayServer/Controllers/AppsController.cs

@@ -0,0 +1,203 @@
+using System;
+using Microsoft.EntityFrameworkCore;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using BTCPayServer.Data;
+using BTCPayServer.Models;
+using BTCPayServer.Models.AppViewModels;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using NBitcoin.DataEncoders;
+using NBitcoin;
+using BTCPayServer.Services.Apps;
+using BTCPayServer.Services.Rates;
+
+namespace BTCPayServer.Controllers
+{
+    [AutoValidateAntiforgeryToken]
+    [Route("apps")]
+    public partial class AppsController : Controller
+    {
+        ApplicationDbContextFactory _ContextFactory;
+        UserManager<ApplicationUser> _UserManager;
+        CurrencyNameTable _Currencies;
+        InvoiceController _InvoiceController;
+
+        [TempData]
+        public string StatusMessage { get; set; }
+
+        public AppsController(
+            UserManager<ApplicationUser> userManager,
+            ApplicationDbContextFactory contextFactory,
+            CurrencyNameTable currencies,
+            InvoiceController invoiceController)
+        {
+            _InvoiceController = invoiceController;
+            _UserManager = userManager;
+            _ContextFactory = contextFactory;
+            _Currencies = currencies;
+        }
+        public async Task<IActionResult> ListApps()
+        {
+            var apps = await GetAllApps();
+            return View(new ListAppsViewModel()
+            {
+                Apps = apps
+            });
+        }
+
+        [HttpPost]
+        [Route("{appId}/delete")]
+        public async Task<IActionResult> DeleteAppPost(string appId)
+        {
+            var appData = await GetOwnedApp(appId);
+            if (appData == null)
+                return NotFound();
+            if (await DeleteApp(appData))
+                StatusMessage = "App removed successfully";
+            return RedirectToAction(nameof(ListApps));
+        }
+
+        [HttpGet]
+        [Route("create")]
+        public async Task<IActionResult> CreateApp()
+        {
+            var stores = await GetOwnedStores();
+            if (stores.Length == 0)
+            {
+                StatusMessage = "Error: You must have created at least one store";
+                return RedirectToAction(nameof(ListApps));
+            }
+            var vm = new CreateAppViewModel();
+            vm.SetStores(stores);
+            return View(vm);
+        }
+
+        [HttpPost]
+        [Route("create")]
+        public async Task<IActionResult> CreateApp(CreateAppViewModel vm)
+        {
+            var stores = await GetOwnedStores();
+            if (stores.Length == 0)
+            {
+                StatusMessage = "Error: You must own at least one store";
+                return RedirectToAction(nameof(ListApps));
+            }
+            var selectedStore = vm.SelectedStore;
+            vm.SetStores(stores);
+            vm.SelectedStore = selectedStore;
+
+            if (!Enum.TryParse<AppType>(vm.SelectedAppType, out AppType appType))
+                ModelState.AddModelError(nameof(vm.SelectedAppType), "Invalid App Type");
+
+            if (!ModelState.IsValid)
+            {
+                return View(vm);
+            }
+
+            if (!stores.Any(s => s.Id == selectedStore))
+            {
+                StatusMessage = "Error: You are not owner of this store";
+                return RedirectToAction(nameof(ListApps));
+            }
+            using (var ctx = _ContextFactory.CreateContext())
+            {
+                var id = Encoders.Base58.EncodeData(RandomUtils.GetBytes(32));
+                var appData = new AppData() { Id = id };
+                appData.StoreDataId = selectedStore;
+                appData.Name = vm.Name;
+                appData.AppType = appType.ToString();
+                ctx.Apps.Add(appData);
+                await ctx.SaveChangesAsync();
+            }
+            StatusMessage = "App successfully created";
+            return RedirectToAction(nameof(ListApps));
+        }
+
+        [HttpGet]
+        [Route("{appId}/delete")]
+        public async Task<IActionResult> DeleteApp(string appId)
+        {
+            var appData = await GetOwnedApp(appId);
+            if (appData == null)
+                return NotFound();
+            return View("Confirm", new ConfirmModel()
+            {
+                Title = $"Delete app {appData.Name} ({appData.AppType})",
+                Description = "This app will be removed from this store",
+                Action = "Delete"
+            });
+        }
+
+        private async Task<AppData> GetOwnedApp(string appId, AppType? type = null)
+        {
+            var userId = GetUserId();
+            using (var ctx = _ContextFactory.CreateContext())
+            {
+                var app = await ctx.UserStore
+                                .Where(us => us.ApplicationUserId == userId && us.Role == StoreRoles.Owner)
+                                .SelectMany(us => us.StoreData.Apps.Where(a => a.Id == appId))
+                   .FirstOrDefaultAsync();
+                if (type != null && type.Value.ToString() != app.AppType)
+                    return null;
+                return app;
+            }
+        }
+
+        private async Task<StoreData[]> GetOwnedStores()
+        {
+            var userId = GetUserId();
+            using (var ctx = _ContextFactory.CreateContext())
+            {
+                return await ctx.UserStore
+                    .Where(us => us.ApplicationUserId == userId && us.Role == StoreRoles.Owner)
+                    .Select(u => u.StoreData)
+                    .ToArrayAsync();
+            }
+        }
+
+        private async Task<bool> DeleteApp(AppData appData)
+        {
+            using (var ctx = _ContextFactory.CreateContext())
+            {
+                ctx.Apps.Add(appData);
+                ctx.Entry<AppData>(appData).State = EntityState.Deleted;
+                return await ctx.SaveChangesAsync() == 1;
+            }
+        }
+
+        private async Task<ListAppsViewModel.ListAppViewModel[]> GetAllApps()
+        {
+            var userId = GetUserId();
+            using (var ctx = _ContextFactory.CreateContext())
+            {
+                return await ctx.UserStore
+                   .Where(us => us.ApplicationUserId == userId)
+                   .Select(us => new
+                   {
+                       IsOwner = us.Role == StoreRoles.Owner,
+                       StoreId = us.StoreDataId,
+                       StoreName = us.StoreData.StoreName,
+                       Apps = us.StoreData.Apps
+                   })
+                   .SelectMany(us => us.Apps.Select(app => new ListAppsViewModel.ListAppViewModel()
+                   {
+                       IsOwner = us.IsOwner,
+                       AppName = app.Name,
+                       AppType = app.AppType,
+                       Id = app.Id,
+                       StoreId = us.StoreId,
+                       StoreName = us.StoreName
+                   }))
+                   .ToArrayAsync();
+            }
+        }
+
+        private string GetUserId()
+        {
+            return _UserManager.GetUserId(User);
+        }
+    }
+}

BTCPayServer/Controllers/InvoiceController.UI.cs

@@ -21,6 +21,7 @@ using System.Threading;
 using BTCPayServer.Events;
 using NBXplorer;
 using BTCPayServer.Payments;
+using BTCPayServer.Payments.Lightning;
 
 namespace BTCPayServer.Controllers
 {
@@ -75,8 +76,8 @@ namespace BTCPayServer.Controllers
                 cryptoPayment.Paid = accounting.CryptoPaid.ToString() + $" {paymentMethodId.CryptoCode}";
 
                 var onchainMethod = data.GetPaymentMethodDetails() as Payments.Bitcoin.BitcoinLikeOnChainPaymentMethod;
-                if(onchainMethod != null)
-                { 
+                if (onchainMethod != null)
+                {
                     cryptoPayment.Address = onchainMethod.DepositAddress;
                 }
                 cryptoPayment.Rate = FormatCurrency(data);
@@ -96,15 +97,19 @@ namespace BTCPayServer.Controllers
                     m.DepositAddress = paymentData.Output.ScriptPubKey.GetDestinationAddress(paymentNetwork.NBitcoinNetwork);
 
                     int confirmationCount = 0;
-                    if(paymentData.Legacy) // The confirmation count in the paymentData is not up to date
+                    if (    (paymentData.ConfirmationCount < paymentNetwork.MaxTrackedConfirmation && payment.Accounted)
+                         && (paymentData.Legacy || invoice.MonitoringExpiration < DateTimeOffset.UtcNow)) // The confirmation count in the paymentData is not up to date
                     {
                         confirmationCount = (await ((ExplorerClientProvider)_ServiceProvider.GetService(typeof(ExplorerClientProvider))).GetExplorerClient(payment.GetCryptoCode())?.GetTransactionAsync(paymentData.Outpoint.Hash))?.Confirmations ?? 0;
+                        paymentData.ConfirmationCount = confirmationCount;
+                        payment.SetCryptoPaymentData(paymentData);
+                        await _InvoiceRepository.UpdatePayments(new List<PaymentEntity> { payment });
                     }
                     else
                     {
                         confirmationCount = paymentData.ConfirmationCount;
                     }
-                    if(confirmationCount >= paymentNetwork.MaxTrackedConfirmation)
+                    if (confirmationCount >= paymentNetwork.MaxTrackedConfirmation)
                     {
                         m.Confirmations = "At least " + (paymentNetwork.MaxTrackedConfirmation);
                     }
@@ -112,7 +117,7 @@ namespace BTCPayServer.Controllers
                     {
                         m.Confirmations = confirmationCount.ToString(CultureInfo.InvariantCulture);
                     }
-                    
+
                     m.TransactionId = paymentData.Outpoint.Hash.ToString();
                     m.ReceivedTime = payment.ReceivedTime;
                     m.TransactionLink = string.Format(CultureInfo.InvariantCulture, paymentNetwork.BlockExplorerLink, m.TransactionId);
@@ -121,7 +126,7 @@ namespace BTCPayServer.Controllers
                 })
                 .ToArray();
             await Task.WhenAll(payments);
-            model.Addresses = invoice.HistoricalAddresses.Select(h=> new InvoiceDetailsModel.AddressModel
+            model.Addresses = invoice.HistoricalAddresses.Select(h => new InvoiceDetailsModel.AddressModel
             {
                 Destination = h.GetAddress(),
                 PaymentMethod = ToString(h.GetPaymentMethodId()),
@@ -186,7 +191,7 @@ namespace BTCPayServer.Controllers
                 return null;
             if (!invoice.Support(paymentMethodId))
             {
-                if(!isDefaultCrypto)
+                if (!isDefaultCrypto)
                     return null;
                 var paymentMethodTemp = invoice.GetPaymentMethods(_NetworkProvider).First();
                 network = paymentMethodTemp.Network;
@@ -197,16 +202,20 @@ namespace BTCPayServer.Controllers
             var paymentMethodDetails = paymentMethod.GetPaymentMethodDetails();
             var dto = invoice.EntityToDTO(_NetworkProvider);
             var cryptoInfo = dto.CryptoInfo.First(o => o.GetpaymentMethodId() == paymentMethodId);
-
+            var storeBlob = store.GetStoreBlob();
             var currency = invoice.ProductInformation.Currency;
             var accounting = paymentMethod.Calculate();
             var model = new PaymentModel()
             {
                 CryptoCode = network.CryptoCode,
                 PaymentMethodId = paymentMethodId.ToString(),
+                IsLightning = paymentMethodId.PaymentType == PaymentTypes.LightningLike,
                 ServerUrl = HttpContext.Request.GetAbsoluteRoot(),
                 OrderId = invoice.OrderId,
                 InvoiceId = invoice.Id,
+                DefaultLang = storeBlob.DefaultLang ?? "en-US",
+                CustomCSSLink = storeBlob.CustomCSS?.AbsoluteUri,
+                CustomLogoLink = storeBlob.CustomLogo?.AbsoluteUri,
                 BtcAddress = paymentMethodDetails.GetPaymentDestination(),
                 OrderAmount = (accounting.TotalDue - accounting.NetworkFee).ToString(),
                 BtcDue = accounting.Due.ToString(),
@@ -221,26 +230,28 @@ namespace BTCPayServer.Controllers
                 InvoiceBitcoinUrl = paymentMethodId.PaymentType == PaymentTypes.BTCLike ? cryptoInfo.PaymentUrls.BIP21 :
                                     paymentMethodId.PaymentType == PaymentTypes.LightningLike ? cryptoInfo.PaymentUrls.BOLT11 :
                                     throw new NotSupportedException(),
+                PeerInfo = (paymentMethodDetails as LightningLikePaymentMethodDetails)?.NodeInfo,
                 InvoiceBitcoinUrlQR = paymentMethodId.PaymentType == PaymentTypes.BTCLike ? cryptoInfo.PaymentUrls.BIP21 :
                                     paymentMethodId.PaymentType == PaymentTypes.LightningLike ? cryptoInfo.PaymentUrls.BOLT11.ToUpperInvariant() :
                                     throw new NotSupportedException(),
                 TxCount = accounting.TxRequired,
                 BtcPaid = accounting.Paid.ToString(),
                 Status = invoice.Status,
-                CryptoImage = "/" + GetImage(paymentMethodId,  network),
+                CryptoImage = "/" + GetImage(paymentMethodId, network),
                 NetworkFeeDescription = $"{accounting.TxRequired} transaction{(accounting.TxRequired > 1 ? "s" : "")} x {paymentMethodDetails.GetTxFee()} {network.CryptoCode}",
+                AllowCoinConversion = storeBlob.AllowCoinConversion,
                 AvailableCryptos = invoice.GetPaymentMethods(_NetworkProvider)
                                           .Where(i => i.Network != null)
-                                          .Select(kv=> new PaymentModel.AvailableCrypto()
-                                            {
-                                                PaymentMethodId = kv.GetId().ToString(),
-                                                CryptoImage = "/" + GetImage(kv.GetId(), kv.Network),
-                                                Link = Url.Action(nameof(Checkout), new { invoiceId = invoiceId, paymentMethodId = kv.GetId().ToString() })
-                                            }).Where(c => c.CryptoImage != "/")
+                                          .Select(kv => new PaymentModel.AvailableCrypto()
+                                          {
+                                              PaymentMethodId = kv.GetId().ToString(),
+                                              CryptoImage = "/" + GetImage(kv.GetId(), kv.Network),
+                                              Link = Url.Action(nameof(Checkout), new { invoiceId = invoiceId, paymentMethodId = kv.GetId().ToString() })
+                                          }).Where(c => c.CryptoImage != "/")
                 .ToList()
             };
 
-            var isMultiCurrency = invoice.GetPayments().Select(p=>p.GetPaymentMethodId()).Concat(new[] { paymentMethod.GetId() }).Distinct().Count() > 1;
+            var isMultiCurrency = invoice.GetPayments().Select(p => p.GetPaymentMethodId()).Concat(new[] { paymentMethod.GetId() }).Distinct().Count() > 1;
             if (isMultiCurrency)
                 model.NetworkFeeDescription = $"{accounting.NetworkFee} {network.CryptoCode}";
 
@@ -382,7 +393,7 @@ namespace BTCPayServer.Controllers
         {
             var ago = DateTime.UtcNow - invoiceTime;
 
-            if(ago.TotalMinutes < 1)
+            if (ago.TotalMinutes < 1)
             {
                 return $"{(int)ago.TotalSeconds} second{Plural((int)ago.TotalSeconds)} ago";
             }
@@ -412,7 +423,7 @@ namespace BTCPayServer.Controllers
             if (stores.Count() == 0)
             {
                 StatusMessage = "Error: You need to create at least one store before creating a transaction";
-                return RedirectToAction(nameof(StoresController.ListStores), "Stores");
+                return RedirectToAction(nameof(UserStoresController.ListStores), "UserStores");
             }
             return View(new CreateInvoiceModel() { Stores = stores });
         }
@@ -429,9 +440,21 @@ namespace BTCPayServer.Controllers
                 return View(model);
             }
             var store = await _StoreRepository.FindStore(model.StoreId, GetUserId());
+            StatusMessage = null;
+            if (store.Role != StoreRoles.Owner)
+            {
+                ModelState.AddModelError(nameof(model.StoreId), "You need to be owner of this store to create an invoice");
+                return View(model);
+            }
+
             if (store.GetSupportedPaymentMethods(_NetworkProvider).Count() == 0)
             {
-                StatusMessage = "Error: You need to configure the derivation scheme in order to create an invoice";
+                ModelState.AddModelError(nameof(model.StoreId), "You need to configure the derivation scheme in order to create an invoice");
+                return View(model);
+            }
+
+            if(StatusMessage != null)
+            {
                 return RedirectToAction(nameof(StoresController.UpdateStore), "Stores", new
                 {
                     storeId = store.Id

BTCPayServer/Controllers/InvoiceController.cs

@@ -79,33 +79,10 @@ namespace BTCPayServer.Controllers
 
         internal async Task<DataWrapper<InvoiceResponse>> CreateInvoiceCore(Invoice invoice, StoreData store, string serverUrl)
         {
-            var supportedPaymentMethods = store.GetSupportedPaymentMethods(_NetworkProvider)
-                                               .Select(c =>
-                                                (Handler: (IPaymentMethodHandler)_ServiceProvider.GetService(typeof(IPaymentMethodHandler<>).MakeGenericType(c.GetType())),
-                                                SupportedPaymentMethod: c,
-                                                Network: _NetworkProvider.GetNetwork(c.PaymentId.CryptoCode),
-                                                IsAvailable: Task.FromResult(false)))
-                                                .Where(c => c.Network != null)
-                                                .Select(c => 
-                                                {
-                                                    c.IsAvailable = c.Handler.IsAvailable(c.SupportedPaymentMethod, c.Network);
-                                                    return c;
-                                                })
-                                                .ToList();
-            foreach(var supportedPaymentMethod in supportedPaymentMethods.ToList())
-            {
-                if(!await supportedPaymentMethod.IsAvailable)
-                {
-                    supportedPaymentMethods.Remove(supportedPaymentMethod);
-                }
-            }
-            if (supportedPaymentMethods.Count == 0)
-                throw new BitpayHttpException(400, "No derivation strategy are available now for this store");
             var entity = new InvoiceEntity
             {
                 InvoiceTime = DateTimeOffset.UtcNow
             };
-            entity.SetSupportedPaymentMethods(supportedPaymentMethods.Select(s => s.SupportedPaymentMethod));
 
             var storeBlob = store.GetStoreBlob();
             Uri notificationUri = Uri.IsWellFormedUriString(invoice.NotificationURL, UriKind.Absolute) ? new Uri(invoice.NotificationURL, UriKind.Absolute) : null;
@@ -133,33 +110,54 @@ namespace BTCPayServer.Controllers
             entity.Status = "new";
             entity.SpeedPolicy = ParseSpeedPolicy(invoice.TransactionSpeed, store.SpeedPolicy);
 
-            var methods = supportedPaymentMethods
-                        .Select(async o =>
-                        {
-                            var rate = await storeBlob.ApplyRateRules(o.Network, _RateProviders.GetRateProvider(o.Network, false)).GetRateAsync(invoice.Currency);
-                            PaymentMethod paymentMethod = new PaymentMethod();
-                            paymentMethod.ParentEntity = entity;
-                            paymentMethod.SetId(o.SupportedPaymentMethod.PaymentId);
-                            paymentMethod.Rate = rate;
-                            var paymentDetails = await o.Handler.CreatePaymentMethodDetails(o.SupportedPaymentMethod, paymentMethod, o.Network);
-                            if (storeBlob.NetworkFeeDisabled)
-                                paymentDetails.SetNoTxFee();
-                            paymentMethod.SetPaymentMethodDetails(paymentDetails);
-#pragma warning disable CS0618
-                            if (paymentMethod.GetId().IsBTCOnChain)
-                            {
-                                entity.TxFee = paymentMethod.TxFee;
-                                entity.Rate = paymentMethod.Rate;
-                                entity.DepositAddress = paymentMethod.DepositAddress;
-                            }
-#pragma warning restore CS0618
-                            return paymentMethod;
-                        });
+
+            var supportedPaymentMethods = store.GetSupportedPaymentMethods(_NetworkProvider)
+                                               .Select(c =>
+                                                (Handler: (IPaymentMethodHandler)_ServiceProvider.GetService(typeof(IPaymentMethodHandler<>).MakeGenericType(c.GetType())),
+                                                SupportedPaymentMethod: c,
+                                                Network: _NetworkProvider.GetNetwork(c.PaymentId.CryptoCode)))
+                                                .Where(c => c.Network != null)
+                                                .Select(o =>
+                                                    (SupportedPaymentMethod: o.SupportedPaymentMethod,
+                                                    PaymentMethod: CreatePaymentMethodAsync(o.Handler, o.SupportedPaymentMethod, o.Network, entity, storeBlob)))
+                                                .ToList();
+
+            List<string> paymentMethodErrors = new List<string>();
+            List<ISupportedPaymentMethod> supported = new List<ISupportedPaymentMethod>();
             var paymentMethods = new PaymentMethodDictionary();
-            foreach (var method in methods)
+            foreach (var o in supportedPaymentMethods)
             {
-                paymentMethods.Add(await method);
+                try
+                {
+                    var paymentMethod = await o.PaymentMethod;
+                    if (paymentMethod == null)
+                        throw new PaymentMethodUnavailableException("Payment method unavailable (The handler returned null)");
+                    supported.Add(o.SupportedPaymentMethod);
+                    paymentMethods.Add(paymentMethod);
+                }
+                catch (PaymentMethodUnavailableException ex)
+                {
+                    paymentMethodErrors.Add($"{o.SupportedPaymentMethod.PaymentId.CryptoCode} ({o.SupportedPaymentMethod.PaymentId.PaymentType}): Payment method unavailable ({ex.Message})");
+                }
+                catch (Exception ex)
+                {
+                    paymentMethodErrors.Add($"{o.SupportedPaymentMethod.PaymentId.CryptoCode} ({o.SupportedPaymentMethod.PaymentId.PaymentType}): Unexpected exception ({ex.ToString()})");
+                }
             }
+
+            if (supported.Count == 0)
+            {
+                StringBuilder errors = new StringBuilder();
+                errors.AppendLine("No payment method available for this store");
+                foreach (var error in paymentMethodErrors)
+                {
+                    errors.AppendLine(error);
+                }
+                throw new BitpayHttpException(400, errors.ToString());
+            }
+
+            entity.SetSupportedPaymentMethods(supported);
+            entity.SetPaymentMethods(paymentMethods);
 #pragma warning disable CS0618
             // Legacy Bitpay clients expect information for BTC information, even if the store do not support it
             var legacyBTCisSet = paymentMethods.Any(p => p.GetId().IsBTCOnChain);
@@ -177,15 +175,73 @@ namespace BTCPayServer.Controllers
                 }
 #pragma warning restore CS0618
             }
-
-            entity.SetPaymentMethods(paymentMethods);
             entity.PosData = invoice.PosData;
-            entity = await _InvoiceRepository.CreateInvoiceAsync(store.Id, entity, _NetworkProvider);
+            entity = await _InvoiceRepository.CreateInvoiceAsync(store.Id, entity, paymentMethodErrors, _NetworkProvider);
+
             _EventAggregator.Publish(new Events.InvoiceEvent(entity, 1001, "invoice_created"));
             var resp = entity.EntityToDTO(_NetworkProvider);
             return new DataWrapper<InvoiceResponse>(resp) { Facade = "pos/invoice" };
         }
 
+        private async Task<PaymentMethod> CreatePaymentMethodAsync(IPaymentMethodHandler handler, ISupportedPaymentMethod supportedPaymentMethod, BTCPayNetwork network, InvoiceEntity entity, StoreBlob storeBlob)
+        {
+            var rate = await storeBlob.ApplyRateRules(network, _RateProviders.GetRateProvider(network, false)).GetRateAsync(entity.ProductInformation.Currency);
+            PaymentMethod paymentMethod = new PaymentMethod();
+            paymentMethod.ParentEntity = entity;
+            paymentMethod.Network = network;
+            paymentMethod.SetId(supportedPaymentMethod.PaymentId);
+            paymentMethod.Rate = rate;
+            var paymentDetails = await handler.CreatePaymentMethodDetails(supportedPaymentMethod, paymentMethod, network);
+            if (storeBlob.NetworkFeeDisabled)
+                paymentDetails.SetNoTxFee();
+            paymentMethod.SetPaymentMethodDetails(paymentDetails);
+
+            Func<Money, Money, bool> compare = null;
+            CurrencyValue limitValue = null;
+            string errorMessage = null;
+            if (supportedPaymentMethod.PaymentId.PaymentType == PaymentTypes.LightningLike &&
+               storeBlob.LightningMaxValue != null)
+            {
+                compare = (a, b) => a > b;
+                limitValue = storeBlob.LightningMaxValue;
+                errorMessage = "The amount of the invoice is too high to be paid with lightning";
+            }
+            else if (supportedPaymentMethod.PaymentId.PaymentType == PaymentTypes.BTCLike &&
+               storeBlob.OnChainMinValue != null)
+            {
+                compare = (a, b) => a < b;
+                limitValue = storeBlob.OnChainMinValue;
+                errorMessage = "The amount of the invoice is too low to be paid on chain";
+            }
+
+            if (compare != null)
+            {
+                var limitValueRate = 0.0m;
+                if (limitValue.Currency == entity.ProductInformation.Currency)
+                    limitValueRate = paymentMethod.Rate;
+                else
+                    limitValueRate = await storeBlob.ApplyRateRules(network, _RateProviders.GetRateProvider(network, false)).GetRateAsync(limitValue.Currency);
+
+                var limitValueCrypto = Money.Coins(limitValue.Value / limitValueRate);
+                if (compare(paymentMethod.Calculate().Due, limitValueCrypto))
+                {
+                    throw new PaymentMethodUnavailableException(errorMessage);
+                }
+            }
+            ///////////////
+
+
+#pragma warning disable CS0618
+            if (paymentMethod.GetId().IsBTCOnChain)
+            {
+                entity.TxFee = paymentMethod.TxFee;
+                entity.Rate = paymentMethod.Rate;
+                entity.DepositAddress = paymentMethod.DepositAddress;
+            }
+#pragma warning restore CS0618
+            return paymentMethod;
+        }
+
 #pragma warning disable CS0618
         private static Money GetTxFee(StoreBlob storeBlob, FeeRate feeRate)
         {

BTCPayServer/Controllers/ServerController.cs

@@ -43,6 +43,50 @@ namespace BTCPayServer.Controllers
             return View(users);
         }
 
+        [Route("server/users/{userId}")]
+        public new async Task<IActionResult> User(string userId)
+        {
+            var user = await _UserManager.FindByIdAsync(userId);
+            if (user == null)
+                return NotFound();
+            var roles = await _UserManager.GetRolesAsync(user);
+            var userVM = new UserViewModel();
+            userVM.Id = user.Id;
+            userVM.IsAdmin = IsAdmin(roles);
+            return View(userVM);
+        }
+
+        private static bool IsAdmin(IList<string> roles)
+        {
+            return roles.Contains(Roles.ServerAdmin, StringComparer.Ordinal);
+        }
+
+        [Route("server/users/{userId}")]
+        [HttpPost]
+        public new async Task<IActionResult> User(string userId, UserViewModel viewModel)
+        {
+            var user = await _UserManager.FindByIdAsync(userId);
+            if (user == null)
+                return NotFound();
+            var roles = await _UserManager.GetRolesAsync(user);
+            var isAdmin = IsAdmin(roles);
+            bool updated = false;
+
+            if(isAdmin != viewModel.IsAdmin)
+            {
+                if (viewModel.IsAdmin)
+                    await _UserManager.AddToRoleAsync(user, Roles.ServerAdmin);
+                else
+                    await _UserManager.RemoveFromRoleAsync(user, Roles.ServerAdmin);
+                updated = true;
+            }
+            if(updated)
+            {
+                viewModel.StatusMessage = "User successfully updated";
+            }
+            return View(viewModel);
+        }
+
 
         [Route("server/users/{userId}/delete")]
         public async Task<IActionResult> DeleteUser(string userId)

BTCPayServer/Controllers/StoresController.BTCLike.cs

@@ -20,40 +20,53 @@ namespace BTCPayServer.Controllers
     public partial class StoresController
     {
         [HttpGet]
-        [Route("{storeId}/derivations")]
-        public async Task<IActionResult> AddDerivationScheme(string storeId, string selectedScheme = null)
+        [Route("{storeId}/derivations/{cryptoCode}")]
+        public async Task<IActionResult> AddDerivationScheme(string storeId, string cryptoCode)
         {
-            selectedScheme = selectedScheme ?? "BTC";
             var store = await _Repo.FindStore(storeId, GetUserId());
             if (store == null)
                 return NotFound();
+
             DerivationSchemeViewModel vm = new DerivationSchemeViewModel();
             vm.ServerUrl = GetStoreUrl(storeId);
-            vm.SetCryptoCurrencies(_ExplorerProvider, selectedScheme);
+            vm.CryptoCode = cryptoCode;
+            SetExistingValues(store, vm);
             return View(vm);
         }
 
+        private void SetExistingValues(StoreData store, DerivationSchemeViewModel vm)
+        {
+            vm.DerivationScheme = GetExistingDerivationStrategy(vm.CryptoCode, store)?.DerivationStrategyBase.ToString();
+        }
+
+        private DerivationStrategy GetExistingDerivationStrategy(string cryptoCode, StoreData store)
+        {
+            var id = new PaymentMethodId(cryptoCode, PaymentTypes.BTCLike);
+            var existing = store.GetSupportedPaymentMethods(_NetworkProvider)
+                .OfType<DerivationStrategy>()
+                .FirstOrDefault(d => d.PaymentId == id);
+            return existing;
+        }
+
         [HttpPost]
-        [Route("{storeId}/derivations")]
-        public async Task<IActionResult> AddDerivationScheme(string storeId, DerivationSchemeViewModel vm)
+        [Route("{storeId}/derivations/{cryptoCode}")]
+        public async Task<IActionResult> AddDerivationScheme(string storeId, DerivationSchemeViewModel vm, string cryptoCode)
         {
             vm.ServerUrl = GetStoreUrl(storeId);
+            vm.CryptoCode = cryptoCode;
             var store = await _Repo.FindStore(storeId, GetUserId());
             if (store == null)
                 return NotFound();
 
-            var network = vm.CryptoCurrency == null ? null : _ExplorerProvider.GetNetwork(vm.CryptoCurrency);
-            vm.SetCryptoCurrencies(_ExplorerProvider, vm.CryptoCurrency);
+            var network = cryptoCode == null ? null : _ExplorerProvider.GetNetwork(cryptoCode);
             if (network == null)
             {
-                ModelState.AddModelError(nameof(vm.CryptoCurrency), "Invalid network");
-                return View(vm);
+                return NotFound();
             }
             var wallet = _WalletProvider.GetWallet(network);
             if (wallet == null)
             {
-                ModelState.AddModelError(nameof(vm.CryptoCurrency), "Invalid network");
-                return View(vm);
+                return NotFound();
             }
 
             PaymentMethodId paymentMethodId = new PaymentMethodId(network.CryptoCode, PaymentTypes.BTCLike);
@@ -62,7 +75,7 @@ namespace BTCPayServer.Controllers
             {
                 if (!string.IsNullOrEmpty(vm.DerivationScheme))
                 {
-                    strategy = ParseDerivationStrategy(vm.DerivationScheme, vm.DerivationSchemeFormat, network);
+                    strategy = ParseDerivationStrategy(vm.DerivationScheme, null, network);
                     vm.DerivationScheme = strategy.ToString();
                 }
             }
@@ -73,8 +86,38 @@ namespace BTCPayServer.Controllers
                 return View(vm);
             }
 
+            if (!vm.Confirmation && strategy != null)
+                return ShowAddresses(vm, strategy);
 
-            if (vm.Confirmation || strategy == null)
+            if (vm.Confirmation && !string.IsNullOrWhiteSpace(vm.HintAddress))
+            {
+                BitcoinAddress address = null;
+                try
+                {
+                    address = BitcoinAddress.Create(vm.HintAddress, network.NBitcoinNetwork);
+                }
+                catch
+                {
+                    ModelState.AddModelError(nameof(vm.HintAddress), "Invalid hint address");
+                    return ShowAddresses(vm, strategy);
+                }
+
+                try
+                {
+                    strategy = ParseDerivationStrategy(vm.DerivationScheme, address.ScriptPubKey, network);
+                }
+                catch
+                {
+                    ModelState.AddModelError(nameof(vm.HintAddress), "Impossible to find a match with this address");
+                    return ShowAddresses(vm, strategy);
+                }
+                vm.HintAddress = "";
+                vm.StatusMessage = "Address successfully found, please verify that the rest is correct and click on \"Confirm\"";
+                ModelState.Remove(nameof(vm.HintAddress));
+                ModelState.Remove(nameof(vm.DerivationScheme));
+                return ShowAddresses(vm, strategy);
+            }
+            else
             {
                 try
                 {
@@ -92,23 +135,24 @@ namespace BTCPayServer.Controllers
                 StatusMessage = $"Derivation scheme for {network.CryptoCode} has been modified.";
                 return RedirectToAction(nameof(UpdateStore), new { storeId = storeId });
             }
-            else
-            {
-                if (!string.IsNullOrEmpty(vm.DerivationScheme))
-                {
-                    var line = strategy.DerivationStrategyBase.GetLineFor(DerivationFeature.Deposit);
-
-                    for (int i = 0; i < 10; i++)
-                    {
-                        var address = line.Derive((uint)i);
-                        vm.AddressSamples.Add((DerivationStrategyBase.GetKeyPath(DerivationFeature.Deposit).Derive((uint)i).ToString(), address.ScriptPubKey.GetDestinationAddress(network.NBitcoinNetwork).ToString()));
-                    }
-                }
-                vm.Confirmation = true;
-                return View(vm);
-            }
         }
 
+        private IActionResult ShowAddresses(DerivationSchemeViewModel vm, DerivationStrategy strategy)
+        {
+            vm.DerivationScheme = strategy.DerivationStrategyBase.ToString();
+            if (!string.IsNullOrEmpty(vm.DerivationScheme))
+            {
+                var line = strategy.DerivationStrategyBase.GetLineFor(DerivationFeature.Deposit);
+
+                for (int i = 0; i < 10; i++)
+                {
+                    var address = line.Derive((uint)i);
+                    vm.AddressSamples.Add((DerivationStrategyBase.GetKeyPath(DerivationFeature.Deposit).Derive((uint)i).ToString(), address.ScriptPubKey.GetDestinationAddress(strategy.Network.NBitcoinNetwork).ToString()));
+                }
+            }
+            vm.Confirmation = true;
+            return View(vm);
+        }
 
 
         public class GetInfoResult
@@ -129,6 +173,8 @@ namespace BTCPayServer.Controllers
             string command,
             // getinfo
             string cryptoCode = null,
+            // getxpub
+            int account = 0,
             // sendtoaddress
             string destination = null, string amount = null, string feeRate = null, string substractFees = null
             )
@@ -204,7 +250,10 @@ namespace BTCPayServer.Controllers
                 }
                 if (command == "getxpub")
                 {
-                    result = await hw.GetExtPubKey(network);
+                    var getxpubResult = await hw.GetExtPubKey(network, account);
+                    ;
+                    getxpubResult.CoinType = (int)(getxpubResult.KeyPath.Indexes[1] - 0x80000000);
+                    result = getxpubResult;
                 }
                 if (command == "getinfo")
                 {
@@ -223,13 +272,13 @@ namespace BTCPayServer.Controllers
 
                 if (command == "sendtoaddress")
                 {
-                    if(!_Dashboard.IsFullySynched(network.CryptoCode, out var summary))
+                    if (!_Dashboard.IsFullySynched(network.CryptoCode, out var summary))
                         throw new Exception($"{network.CryptoCode}: not started or fully synched");
                     var strategy = GetDirectDerivationStrategy(store, network);
                     var strategyBase = GetDerivationStrategy(store, network);
                     var wallet = _WalletProvider.GetWallet(network);
                     var change = wallet.GetChangeAddressAsync(strategyBase);
-                    
+
                     var unspentCoins = await wallet.GetUnspentCoins(strategyBase);
                     var changeAddress = await change;
                     var transaction = await hw.SendToAddress(strategy, unspentCoins, network,

BTCPayServer/Controllers/StoresController.LightningLike.cs

@@ -8,38 +8,66 @@ using BTCPayServer.Payments;
 using BTCPayServer.Payments.Lightning.CLightning;
 using Microsoft.AspNetCore.Mvc;
 using BTCPayServer.Payments.Lightning;
+using System.Net;
+using BTCPayServer.Data;
 
 namespace BTCPayServer.Controllers
 {
     public partial class StoresController
     {
+
         [HttpGet]
-        [Route("{storeId}/lightning")]
-        public async Task<IActionResult> AddLightningNode(string storeId, string selectedCrypto = null)
+        [Route("{storeId}/lightning/{cryptoCode}")]
+        public async Task<IActionResult> AddLightningNode(string storeId, string cryptoCode)
         {
-            selectedCrypto = selectedCrypto ?? "BTC";
             var store = await _Repo.FindStore(storeId, GetUserId());
             if (store == null)
                 return NotFound();
             LightningNodeViewModel vm = new LightningNodeViewModel();
-            vm.SetCryptoCurrencies(_NetworkProvider, selectedCrypto);
-            vm.InternalLightningNode = GetInternalLightningNodeIfAuthorized();
+            vm.CryptoCode = cryptoCode;
+            vm.InternalLightningNode = GetInternalLighningNode(cryptoCode)?.ToUri(true)?.AbsoluteUri;
+            SetExistingValues(store, vm);
             return View(vm);
         }
 
-        [HttpPost]
-        [Route("{storeId}/lightning")]
-        public async Task<IActionResult> AddLightningNode(string storeId, LightningNodeViewModel vm, string command)
+        private void SetExistingValues(StoreData store, LightningNodeViewModel vm)
         {
+            vm.Url = GetExistingLightningSupportedPaymentMethod(vm.CryptoCode, store)?.GetLightningUrl()?.ToString();
+        }
+
+        private LightningSupportedPaymentMethod GetExistingLightningSupportedPaymentMethod(string cryptoCode, StoreData store)
+        {
+            var id = new PaymentMethodId(cryptoCode, PaymentTypes.LightningLike);
+            var existing = store.GetSupportedPaymentMethods(_NetworkProvider)
+                .OfType<LightningSupportedPaymentMethod>()
+                .FirstOrDefault(d => d.PaymentId == id);
+            return existing;
+        }
+
+        private LightningConnectionString GetInternalLighningNode(string cryptoCode)
+        {
+            if (_BtcpayServerOptions.InternalLightningByCryptoCode.TryGetValue(cryptoCode, out var connectionString))
+            {
+                return CanUseInternalLightning() ? connectionString : null;
+            }
+            return null;
+        }
+
+        [HttpPost]
+        [Route("{storeId}/lightning/{cryptoCode}")]
+        public async Task<IActionResult> AddLightningNode(string storeId, LightningNodeViewModel vm, string command, string cryptoCode)
+        {
+            vm.CryptoCode = cryptoCode;
             var store = await _Repo.FindStore(storeId, GetUserId());
             if (store == null)
                 return NotFound();
-            var network = vm.CryptoCurrency == null ? null : _ExplorerProvider.GetNetwork(vm.CryptoCurrency);
-            vm.SetCryptoCurrencies(_NetworkProvider, vm.CryptoCurrency);
-            vm.InternalLightningNode = GetInternalLightningNodeIfAuthorized();
-            if (network == null || network.CLightningNetworkName == null)
+            var network = vm.CryptoCode == null ? null : _ExplorerProvider.GetNetwork(vm.CryptoCode);
+
+            var internalLightning = GetInternalLighningNode(network.CryptoCode);
+            vm.InternalLightningNode = internalLightning?.ToUri(true)?.AbsoluteUri;
+            if (network == null)
             {
-                ModelState.AddModelError(nameof(vm.CryptoCurrency), "Invalid network");
+                ModelState.AddModelError(nameof(vm.CryptoCode), "Invalid network");
                 return View(vm);
             }
 
@@ -47,41 +75,39 @@ namespace BTCPayServer.Controllers
             Payments.Lightning.LightningSupportedPaymentMethod paymentMethod = null;
             if (!string.IsNullOrEmpty(vm.Url))
             {
-                Uri uri;
-                if (!Uri.TryCreate(vm.Url, UriKind.Absolute, out uri))
+                if (!LightningConnectionString.TryParse(vm.Url, out var connectionString, out var error))
                 {
-                    ModelState.AddModelError(nameof(vm.Url), "Invalid URL");
+                    ModelState.AddModelError(nameof(vm.Url), $"Invalid URL ({error})");
                     return View(vm);
                 }
 
-                var domain = GetDomain(uri.AbsoluteUri);
-                if (uri.Scheme != "https" && domain != "127.0.0.1" && domain != "localhost")
+                var internalDomain = internalLightning?.ToUri(false)?.DnsSafeHost;
+                bool isLocal = (internalDomain == "127.0.0.1" || internalDomain == "localhost");
+
+                bool isInternalNode = connectionString.ConnectionType == LightningConnectionType.CLightning ||
+                                      connectionString.BaseUri.DnsSafeHost == internalDomain ||
+                                      isLocal;
+
+                if (connectionString.BaseUri.Scheme == "http" && !isLocal)
                 {
-                    var internalNode = GetInternalLightningNodeIfAuthorized();
-                    if (internalNode == null || GetDomain(internalNode) != domain)
+                    if (!isInternalNode || (isInternalNode && !CanUseInternalLightning()))
                     {
                         ModelState.AddModelError(nameof(vm.Url), "The url must be HTTPS");
                         return View(vm);
                     }
                 }
 
-                if (!CanUseInternalLightning() && GetDomain(_BtcpayServerOptions.InternalLightningNode.AbsoluteUri) == GetDomain(uri.AbsoluteUri))
+                if (isInternalNode && !CanUseInternalLightning())
                 {
                     ModelState.AddModelError(nameof(vm.Url), "Unauthorized url");
                     return View(vm);
                 }
 
-                if (string.IsNullOrEmpty(uri.UserInfo) || uri.UserInfo.Split(':').Length != 2)
-                {
-                    ModelState.AddModelError(nameof(vm.Url), "The url is missing user and password");
-                    return View(vm);
-                }
-
                 paymentMethod = new Payments.Lightning.LightningSupportedPaymentMethod()
                 {
                     CryptoCode = paymentMethodId.CryptoCode
                 };
-                paymentMethod.SetLightningChargeUrl(uri);
+                paymentMethod.SetLightningUrl(connectionString);
             }
             if (command == "save")
             {
@@ -100,36 +126,21 @@ namespace BTCPayServer.Controllers
                 var handler = (LightningLikePaymentHandler)_ServiceProvider.GetRequiredService<IPaymentMethodHandler<Payments.Lightning.LightningSupportedPaymentMethod>>();
                 try
                 {
-                    await handler.Test(paymentMethod, network);
+                    var info = await handler.Test(paymentMethod, network);
+                    vm.StatusMessage = $"Connection to the lightning node succeed ({info})";
                 }
                 catch (Exception ex)
                 {
                     vm.StatusMessage = $"Error: {ex.Message}";
                     return View(vm);
-                }
-                vm.StatusMessage = "Connection to the lightning node succeed";
+                }                
                 return View(vm);
             }
         }
 
-        private string GetInternalLightningNodeIfAuthorized()
-        {
-            if (_BtcpayServerOptions.InternalLightningNode != null &&
-                        CanUseInternalLightning())
-            {
-                return _BtcpayServerOptions.InternalLightningNode.AbsoluteUri;
-            }
-            return null;
-        }
-
         private bool CanUseInternalLightning()
         {
             return (_BTCPayEnv.IsDevelopping || User.IsInRole(Roles.ServerAdmin));
         }
-
-        string GetDomain(string uri)
-        {
-            return new UriBuilder(uri).Host;
-        }
     }
 }

BTCPayServer/Controllers/StoresController.cs

@@ -27,10 +27,11 @@ namespace BTCPayServer.Controllers
 {
     [Route("stores")]
     [Authorize(AuthenticationSchemes = "Identity.Application")]
-    [Authorize(Policy = "CanAccessStore")]
+    [Authorize(Policy = StorePolicies.OwnStore)]
     [AutoValidateAntiforgeryToken]
     public partial class StoresController : Controller
     {
+        public string CreatedStoreId { get; set; }
         public StoresController(
             NBXplorerDashboard dashboard,
             IServiceProvider serviceProvider,
@@ -45,12 +46,14 @@ namespace BTCPayServer.Controllers
             BTCPayNetworkProvider networkProvider,
             ExplorerClientProvider explorerProvider,
             IFeeProviderFactory feeRateProvider,
+            LanguageService langService,
             IHostingEnvironment env)
         {
             _Dashboard = dashboard;
             _Repo = repo;
             _TokenRepository = tokenRepo;
             _UserManager = userManager;
+            _LangService = langService;
             _TokenController = tokenController;
             _WalletProvider = walletProvider;
             _Env = env;
@@ -75,6 +78,7 @@ namespace BTCPayServer.Controllers
         StoreRepository _Repo;
         TokenRepository _TokenRepository;
         UserManager<ApplicationUser> _UserManager;
+        private LanguageService _LangService;
         IHostingEnvironment _Env;
 
         [TempData]
@@ -84,41 +88,15 @@ namespace BTCPayServer.Controllers
         }
 
         [HttpGet]
-        [Route("create")]
-        public IActionResult CreateStore()
-        {
-            return View();
-        }
-
-        [HttpPost]
-        [Route("create")]
-        public async Task<IActionResult> CreateStore(CreateStoreViewModel vm)
-        {
-            if (!ModelState.IsValid)
-            {
-                return View(vm);
-            }
-            var store = await _Repo.CreateStore(GetUserId(), vm.Name);
-            CreatedStoreId = store.Id;
-            StatusMessage = "Store successfully created";
-            return RedirectToAction(nameof(ListStores));
-        }
-
-        public string CreatedStoreId
-        {
-            get; set;
-        }
-
-        [HttpGet]
-        [Route("{storeId}/wallet")]
-        public async Task<IActionResult> Wallet(string storeId)
+        [Route("{storeId}/wallet/{cryptoCode}")]
+        public async Task<IActionResult> Wallet(string storeId, string cryptoCode)
         {
             var store = await _Repo.FindStore(storeId, GetUserId());
             if (store == null)
                 return NotFound();
             WalletModel model = new WalletModel();
             model.ServerUrl = GetStoreUrl(storeId);
-            model.SetCryptoCurrencies(_ExplorerProvider, store.GetDefaultCrypto());
+            model.CryptoCurrency = cryptoCode;
             return View(model);
         }
 
@@ -128,76 +106,161 @@ namespace BTCPayServer.Controllers
         }
 
         [HttpGet]
-        public async Task<IActionResult> ListStores()
+        [Route("{storeId}/users")]
+        public async Task<IActionResult> StoreUsers(string storeId)
         {
-            StoresViewModel result = new StoresViewModel();
-            result.StatusMessage = StatusMessage;
-            var stores = await _Repo.GetStoresByUserId(GetUserId());
-            var balances = stores
-                                .Select(s => s.GetSupportedPaymentMethods(_NetworkProvider)
-                                              .OfType<DerivationStrategy>()
-                                              .Select(d => ((Wallet: _WalletProvider.GetWallet(d.Network),
-                                                            DerivationStrategy: d.DerivationStrategyBase)))
-                                              .Where(_ => _.Wallet != null)
-                                              .Select(async _ => (await GetBalanceString(_)) + " " + _.Wallet.Network.CryptoCode))
-                                .ToArray();
-
-            await Task.WhenAll(balances.SelectMany(_ => _));
-            for (int i = 0; i < stores.Length; i++)
-            {
-                var store = stores[i];
-                result.Stores.Add(new StoresViewModel.StoreViewModel()
-                {
-                    Id = store.Id,
-                    Name = store.StoreName,
-                    WebSite = store.StoreWebsite,
-                    Balances = balances[i].Select(t => t.Result).ToArray()
-                });
-            }
-            return View(result);
+            StoreUsersViewModel vm = new StoreUsersViewModel();
+            await FillUsers(storeId, vm);
+            return View(vm);
         }
 
-        private static async Task<string> GetBalanceString((BTCPayWallet Wallet, DerivationStrategyBase DerivationStrategy) _)
+        private async Task FillUsers(string storeId, StoreUsersViewModel vm)
         {
-            using (CancellationTokenSource cts = new CancellationTokenSource(TimeSpan.FromSeconds(10)))
+            var users = await _Repo.GetStoreUsers(storeId);
+            vm.StoreId = storeId;
+            vm.Users = users.Select(u => new StoreUsersViewModel.StoreUserViewModel()
             {
-                try
-                {
-                    return (await _.Wallet.GetBalance(_.DerivationStrategy, cts.Token)).ToString();
-                }
-                catch
-                {
-                    return "--";
-                }
+                Email = u.Email,
+                Id = u.Id,
+                Role = u.Role
+            }).ToList();
+        }
+
+        [HttpPost]
+        [Route("{storeId}/users")]
+        public async Task<IActionResult> StoreUsers(string storeId, StoreUsersViewModel vm)
+        {
+            await FillUsers(storeId, vm);
+            if (!ModelState.IsValid)
+            {
+                return View(vm);
             }
+            var user = await _UserManager.FindByEmailAsync(vm.Email);
+            if (user == null)
+            {
+                ModelState.AddModelError(nameof(vm.Email), "User not found");
+                return View(vm);
+            }
+            if (!StoreRoles.AllRoles.Contains(vm.Role))
+            {
+                ModelState.AddModelError(nameof(vm.Role), "Invalid role");
+                return View(vm);
+            }
+            if (!await _Repo.AddStoreUser(storeId, user.Id, vm.Role))
+            {
+                ModelState.AddModelError(nameof(vm.Email), "The user already has access to this store");
+                return View(vm);
+            }
+            StatusMessage = "User added successfully";
+            return RedirectToAction(nameof(StoreUsers));
         }
 
         [HttpGet]
-        [Route("{storeId}/delete")]
-        public async Task<IActionResult> DeleteStore(string storeId)
+        [Route("{storeId}/users/{userId}/delete")]
+        public async Task<IActionResult> DeleteStoreUser(string storeId, string userId)
         {
-            var store = await _Repo.FindStore(storeId, GetUserId());
+            StoreUsersViewModel vm = new StoreUsersViewModel();
+            var store = await _Repo.FindStore(storeId, userId);
             if (store == null)
                 return NotFound();
+            var user = await _UserManager.FindByIdAsync(userId);
+            if (user == null)
+                return NotFound();
             return View("Confirm", new ConfirmModel()
             {
-                Title = "Delete store " + store.StoreName,
-                Description = "This store will still be accessible to users sharing it",
+                Title = $"Remove store user",
+                Description = $"Are you sure to remove access to remove {store.Role} access to {user.Email}?",
                 Action = "Delete"
             });
         }
 
         [HttpPost]
-        [Route("{storeId}/delete")]
-        public async Task<IActionResult> DeleteStorePost(string storeId)
+        [Route("{storeId}/users/{userId}/delete")]
+        public async Task<IActionResult> DeleteStoreUserPost(string storeId, string userId)
+        {
+            await _Repo.RemoveStoreUser(storeId, userId);
+            StatusMessage = "User removed successfully";
+            return RedirectToAction(nameof(StoreUsers), new { storeId = storeId, userId = userId });
+        }
+
+        [HttpGet]
+        [Route("{storeId}/checkout")]
+        public async Task<IActionResult> CheckoutExperience(string storeId)
         {
-            var userId = GetUserId();
             var store = await _Repo.FindStore(storeId, GetUserId());
             if (store == null)
                 return NotFound();
-            await _Repo.RemoveStore(storeId, userId);
-            StatusMessage = "Store removed successfully";
-            return RedirectToAction(nameof(ListStores));
+            var storeBlob = store.GetStoreBlob();
+            var vm = new CheckoutExperienceViewModel();
+            vm.SetCryptoCurrencies(_ExplorerProvider, store.GetDefaultCrypto());
+            vm.SetLanguages(_LangService, storeBlob.DefaultLang);
+            vm.LightningMaxValue = storeBlob.LightningMaxValue?.ToString() ?? "";
+            vm.OnChainMinValue = storeBlob.OnChainMinValue?.ToString() ?? "";
+            vm.AllowCoinConversion = storeBlob.AllowCoinConversion;
+            vm.CustomCSS = storeBlob.CustomCSS?.AbsoluteUri;
+            vm.CustomLogo = storeBlob.CustomLogo?.AbsoluteUri;
+            return View(vm);
+        }
+
+        [HttpPost]
+        [Route("{storeId}/checkout")]
+        public async Task<IActionResult> CheckoutExperience(string storeId, CheckoutExperienceViewModel model)
+        {
+            CurrencyValue lightningMaxValue = null;
+            if (!string.IsNullOrWhiteSpace(model.LightningMaxValue))
+            {
+                if (!CurrencyValue.TryParse(model.LightningMaxValue, out lightningMaxValue))
+                {
+                    ModelState.AddModelError(nameof(model.LightningMaxValue), "Invalid lightning max value");
+                }
+            }
+
+            CurrencyValue onchainMinValue = null;
+            if (!string.IsNullOrWhiteSpace(model.OnChainMinValue))
+            {
+                if (!CurrencyValue.TryParse(model.OnChainMinValue, out onchainMinValue))
+                {
+                    ModelState.AddModelError(nameof(model.OnChainMinValue), "Invalid on chain min value");
+                }
+            }
+
+            var store = await _Repo.FindStore(storeId, GetUserId());
+            if (store == null)
+                return NotFound();
+            bool needUpdate = false;
+            var blob = store.GetStoreBlob();
+            if (store.GetDefaultCrypto() != model.DefaultCryptoCurrency)
+            {
+                needUpdate = true;
+                store.SetDefaultCrypto(model.DefaultCryptoCurrency);
+            }
+            model.SetCryptoCurrencies(_ExplorerProvider, model.DefaultCryptoCurrency);
+            model.SetLanguages(_LangService, model.DefaultLang);
+
+            if(!ModelState.IsValid)
+            {
+                return View(model);
+            }
+            blob.DefaultLang = model.DefaultLang;
+            blob.AllowCoinConversion = model.AllowCoinConversion;
+            blob.LightningMaxValue = lightningMaxValue;
+            blob.OnChainMinValue = onchainMinValue;
+            blob.CustomLogo = string.IsNullOrWhiteSpace(model.CustomLogo) ? null : new Uri(model.CustomLogo, UriKind.Absolute);
+            blob.CustomCSS = string.IsNullOrWhiteSpace(model.CustomCSS) ? null : new Uri(model.CustomCSS, UriKind.Absolute);
+            if (store.SetStoreBlob(blob))
+            {
+                needUpdate = true;
+            }
+            if (needUpdate)
+            {
+                await _Repo.UpdateStore(store);
+                StatusMessage = "Store successfully updated";
+            }
+
+            return RedirectToAction(nameof(CheckoutExperience), new
+            {
+                storeId = storeId
+            });
         }
 
         [HttpGet]
@@ -212,12 +275,10 @@ namespace BTCPayServer.Controllers
             var vm = new StoreViewModel();
             vm.Id = store.Id;
             vm.StoreName = store.StoreName;
-            vm.SetCryptoCurrencies(_ExplorerProvider, store.GetDefaultCrypto());
             vm.StoreWebsite = store.StoreWebsite;
             vm.NetworkFee = !storeBlob.NetworkFeeDisabled;
             vm.SpeedPolicy = store.SpeedPolicy;
             AddPaymentMethods(store, vm);
-            vm.StatusMessage = StatusMessage;
             vm.MonitoringExpiration = storeBlob.MonitoringExpiration;
             vm.InvoiceExpiration = storeBlob.InvoiceExpiration;
             vm.RateMultiplier = (double)storeBlob.GetRateMultiplier();
@@ -225,27 +286,36 @@ namespace BTCPayServer.Controllers
             return View(vm);
         }
 
+
         private void AddPaymentMethods(StoreData store, StoreViewModel vm)
         {
-            foreach(var strategy in  store
-                            .GetSupportedPaymentMethods(_NetworkProvider)
-                            .OfType<DerivationStrategy>())
+            var derivationByCryptoCode =
+                store
+                .GetSupportedPaymentMethods(_NetworkProvider)
+                .OfType<DerivationStrategy>()
+                .ToDictionary(c => c.Network.CryptoCode);
+            foreach (var network in _NetworkProvider.GetAll())
             {
+                var strategy = derivationByCryptoCode.TryGet(network.CryptoCode);
                 vm.DerivationSchemes.Add(new StoreViewModel.DerivationScheme()
                 {
-                    Crypto = strategy.PaymentId.CryptoCode,
-                    Value = strategy.DerivationStrategyBase.ToString()
+                    Crypto = network.CryptoCode,
+                    Value = strategy?.DerivationStrategyBase?.ToString() ?? string.Empty
                 });
             }
 
-            foreach(var lightning in store
+            var lightningByCryptoCode = store
                                         .GetSupportedPaymentMethods(_NetworkProvider)
-                                        .OfType<Payments.Lightning.LightningSupportedPaymentMethod>())
+                                        .OfType<Payments.Lightning.LightningSupportedPaymentMethod>()
+                                        .ToDictionary(c => c.CryptoCode);
+
+            foreach (var network in _NetworkProvider.GetAll())
             {
+                var lightning = lightningByCryptoCode.TryGet(network.CryptoCode);
                 vm.LightningNodes.Add(new StoreViewModel.LightningNode()
                 {
-                    CryptoCode = lightning.CryptoCode,
-                    Address = lightning.GetLightningChargeUrl(false).AbsoluteUri
+                    CryptoCode = network.CryptoCode,
+                    Address = lightning?.GetLightningUrl()?.BaseUri.AbsoluteUri ?? string.Empty
                 });
             }
         }
@@ -282,13 +352,6 @@ namespace BTCPayServer.Controllers
                 store.StoreWebsite = model.StoreWebsite;
             }
 
-            if (store.GetDefaultCrypto() != model.DefaultCryptoCurrency)
-            {
-                needUpdate = true;
-                store.SetDefaultCrypto(model.DefaultCryptoCurrency);
-            }
-            model.SetCryptoCurrencies(_ExplorerProvider, model.DefaultCryptoCurrency);
-
             var blob = store.GetStoreBlob();
             blob.NetworkFeeDisabled = !model.NetworkFee;
             blob.MonitoringExpiration = model.MonitoringExpiration;
@@ -329,41 +392,11 @@ namespace BTCPayServer.Controllers
             });
         }
 
-        private DerivationStrategy ParseDerivationStrategy(string derivationScheme, string format, BTCPayNetwork network)
+        private DerivationStrategy ParseDerivationStrategy(string derivationScheme, Script hint, BTCPayNetwork network)
         {
-            if (format == "Electrum")
-            {
-                //Unsupported Electrum
-                //var p2wsh_p2sh = 0x295b43fU;
-                //var p2wsh = 0x2aa7ed3U;
-                Dictionary<uint, string[]> electrumMapping = new Dictionary<uint, string[]>();
-                //Source https://github.com/spesmilo/electrum/blob/9edffd17542de5773e7284a8c8a2673c766bb3c3/lib/bitcoin.py
-                var standard = 0x0488b21eU;
-                electrumMapping.Add(standard, new[] { "legacy" });
-                var p2wpkh_p2sh = 0x049d7cb2U;
-                electrumMapping.Add(p2wpkh_p2sh, new string[] { "p2sh" });
-                var p2wpkh = 0x4b24746U;
-                electrumMapping.Add(p2wpkh, Array.Empty<string>());
-
-                var data = Encoders.Base58Check.DecodeData(derivationScheme);
-                if (data.Length < 4)
-                    throw new FormatException("data.Length < 4");
-                var prefix = Utils.ToUInt32(data, false);
-                if (!electrumMapping.TryGetValue(prefix, out string[] labels))
-                    throw new FormatException("!electrumMapping.TryGetValue(prefix, out string[] labels)");
-                var standardPrefix = Utils.ToBytes(network.NBXplorerNetwork.DefaultSettings.ChainType == NBXplorer.ChainType.Main ? 0x0488b21eU : 0x043587cf, false);
-
-                for (int i = 0; i < 4; i++)
-                    data[i] = standardPrefix[i];
-
-                derivationScheme = new BitcoinExtPubKey(Encoders.Base58Check.EncodeData(data), network.NBitcoinNetwork).ToString();
-                foreach (var label in labels)
-                {
-                    derivationScheme = derivationScheme + $"-[{label}]";
-                }
-            }
-
-            return new DerivationStrategy(new DerivationStrategyFactory(network.NBitcoinNetwork).Parse(derivationScheme), network);
+            var parser = new DerivationSchemeParser(network.NBitcoinNetwork, network.DefaultSettings.ChainType);
+            parser.HintScriptPubKey = hint;
+            return new DerivationStrategy(parser.Parse(derivationScheme), network);
         }
 
         [HttpGet]
@@ -393,15 +426,17 @@ namespace BTCPayServer.Controllers
                 return View(model);
             }
             model.Label = model.Label ?? String.Empty;
-            if (storeId == null) // Permissions are not checked by Policy if the storeId is not passed by url
+            storeId = model.StoreId ?? storeId;
+            var userId = GetUserId();
+            if (userId == null)
+                return Unauthorized();
+            var store = await _Repo.FindStore(storeId, userId);
+            if (store == null)
+                return Unauthorized();
+            if (store.Role != StoreRoles.Owner)
             {
-                storeId = model.StoreId;
-                var userId = GetUserId();
-                if (userId == null)
-                    return Unauthorized();
-                var store = await _Repo.FindStore(storeId, userId);
-                if (store == null)
-                    return Unauthorized();
+                StatusMessage = "Error: You need to be owner of this store to request pairing codes";
+                return RedirectToAction(nameof(UserStoresController.ListStores), "UserStores");
             }
 
             var tokenRequest = new TokenRequest()
@@ -481,11 +516,13 @@ namespace BTCPayServer.Controllers
         [Route("/api-access-request")]
         public async Task<IActionResult> RequestPairing(string pairingCode, string selectedStore = null)
         {
+            if (pairingCode == null)
+                return NotFound();
             var pairing = await _TokenRepository.GetPairingAsync(pairingCode);
             if (pairing == null)
             {
                 StatusMessage = "Unknown pairing code";
-                return RedirectToAction(nameof(ListStores));
+                return RedirectToAction(nameof(UserStoresController.ListStores), "UserStores");
             }
             else
             {
@@ -507,7 +544,7 @@ namespace BTCPayServer.Controllers
         }
 
         [HttpPost]
-        [Route("api-access-request")]
+        [Route("/api-access-request")]
         public async Task<IActionResult> Pair(string pairingCode, string selectedStore)
         {
             if (pairingCode == null)
@@ -517,6 +554,12 @@ namespace BTCPayServer.Controllers
             if (store == null || pairing == null)
                 return NotFound();
 
+            if (store.Role != StoreRoles.Owner)
+            {
+                StatusMessage = "Error: You can't approve a pairing without being owner of the store";
+                return RedirectToAction(nameof(UserStoresController.ListStores), "UserStores");
+            }
+
             var pairingResult = await _TokenRepository.PairWithStoreAsync(pairingCode, store.Id);
             if (pairingResult == PairingResult.Complete || pairingResult == PairingResult.Partial)
             {

BTCPayServer/Controllers/UserStoresController.cs

@@ -0,0 +1,147 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+using BTCPayServer.Models;
+using BTCPayServer.Models.StoreViewModels;
+using BTCPayServer.Services.Stores;
+using BTCPayServer.Services.Wallets;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using NBXplorer.DerivationStrategy;
+
+namespace BTCPayServer.Controllers
+{
+    [Route("stores")]
+    [Authorize(AuthenticationSchemes = "Identity.Application")]
+    [AutoValidateAntiforgeryToken]
+    public partial class UserStoresController : Controller
+    {
+        private StoreRepository _Repo;
+        private BTCPayNetworkProvider _NetworkProvider;
+        private UserManager<ApplicationUser> _UserManager;
+        private BTCPayWalletProvider _WalletProvider;
+
+        public UserStoresController(
+            UserManager<ApplicationUser> userManager,
+            BTCPayNetworkProvider networkProvider,
+            BTCPayWalletProvider walletProvider,
+            StoreRepository storeRepository)
+        {
+            _Repo = storeRepository;
+            _NetworkProvider = networkProvider;
+            _UserManager = userManager;
+            _WalletProvider = walletProvider;
+        }
+        [HttpGet]
+        [Route("{storeId}/delete")]
+        public async Task<IActionResult> DeleteStore(string storeId)
+        {
+            var store = await _Repo.FindStore(storeId, GetUserId());
+            if (store == null)
+                return NotFound();
+            return View("Confirm", new ConfirmModel()
+            {
+                Title = "Delete store " + store.StoreName,
+                Description = "This store will still be accessible to users sharing it",
+                Action = "Delete"
+            });
+        }
+
+        [HttpGet]
+        [Route("create")]
+        public IActionResult CreateStore()
+        {
+            return View();
+        }
+
+        public string CreatedStoreId
+        {
+            get; set;
+        }
+
+        [HttpPost]
+        [Route("{storeId}/delete")]
+        public async Task<IActionResult> DeleteStorePost(string storeId)
+        {
+            var userId = GetUserId();
+            var store = await _Repo.FindStore(storeId, GetUserId());
+            if (store == null)
+                return NotFound();
+            await _Repo.RemoveStore(storeId, userId);
+            StatusMessage = "Store removed successfully";
+            return RedirectToAction(nameof(ListStores));
+        }
+
+        [TempData]
+        public string StatusMessage { get; set; }
+
+        [HttpGet]
+        public async Task<IActionResult> ListStores()
+        {
+            StoresViewModel result = new StoresViewModel();
+            var stores = await _Repo.GetStoresByUserId(GetUserId());
+
+            var balances = stores
+                                .Select(s => s.GetSupportedPaymentMethods(_NetworkProvider)
+                                              .OfType<DerivationStrategy>()
+                                              .Select(d => ((Wallet: _WalletProvider.GetWallet(d.Network),
+                                                            DerivationStrategy: d.DerivationStrategyBase)))
+                                              .Where(_ => _.Wallet != null)
+                                              .Select(async _ => (await GetBalanceString(_)) + " " + _.Wallet.Network.CryptoCode))
+                                .ToArray();
+
+            await Task.WhenAll(balances.SelectMany(_ => _));
+            for (int i = 0; i < stores.Length; i++)
+            {
+                var store = stores[i];
+                result.Stores.Add(new StoresViewModel.StoreViewModel()
+                {
+                    Id = store.Id,
+                    Name = store.StoreName,
+                    WebSite = store.StoreWebsite,
+                    IsOwner = store.Role == StoreRoles.Owner,
+                    Balances = store.Role == StoreRoles.Owner ? balances[i].Select(t => t.Result).ToArray() : Array.Empty<string>()
+                });
+            }
+            return View(result);
+        }
+
+        [HttpPost]
+        [Route("create")]
+        public async Task<IActionResult> CreateStore(CreateStoreViewModel vm)
+        {
+            if (!ModelState.IsValid)
+            {
+                return View(vm);
+            }
+            var store = await _Repo.CreateStore(GetUserId(), vm.Name);
+            CreatedStoreId = store.Id;
+            StatusMessage = "Store successfully created";
+            return RedirectToAction(nameof(ListStores));
+        }
+
+        private static async Task<string> GetBalanceString((BTCPayWallet Wallet, DerivationStrategyBase DerivationStrategy) _)
+        {
+            using (CancellationTokenSource cts = new CancellationTokenSource(TimeSpan.FromSeconds(10)))
+            {
+                try
+                {
+                    return (await _.Wallet.GetBalance(_.DerivationStrategy, cts.Token)).ToString();
+                }
+                catch
+                {
+                    return "--";
+                }
+            }
+        }
+
+
+        private string GetUserId()
+        {
+            return _UserManager.GetUserId(User);
+        }
+    }
+}

BTCPayServer/CurrencyValue.cs

@@ -0,0 +1,44 @@
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+using BTCPayServer.Services.Rates;
+
+namespace BTCPayServer
+{
+    public class CurrencyValue
+    {
+        static Regex _Regex = new Regex("^([0-9]+(\\.[0-9]+)?)\\s*([a-zA-Z]+)$");
+        static CurrencyNameTable _CurrencyTable = new CurrencyNameTable();
+        public static bool TryParse(string str, out CurrencyValue value)
+        {
+            value = null;
+            var match = _Regex.Match(str);
+            if (!match.Success ||
+                !decimal.TryParse(match.Groups[1].Value, out var v))
+                return false;
+
+            var currency = match.Groups.Last().Value.ToUpperInvariant();
+            var currencyData = _CurrencyTable.GetCurrencyData(currency);
+            if (currencyData == null)
+                return false;
+            v = Math.Round(v, currencyData.Divisibility);
+            value = new CurrencyValue()
+            {
+                Value = v,
+                Currency = currency
+            };
+            return true;
+        }
+
+        public decimal Value { get; set; }
+        public string Currency { get; set; }
+
+        public override string ToString()
+        {
+            return Value.ToString(CultureInfo.InvariantCulture) + " " + Currency;
+        }
+    }
+}

BTCPayServer/Data/AppData.cs

@@ -0,0 +1,40 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Newtonsoft.Json;
+
+namespace BTCPayServer.Data
+{
+    public class AppData
+    {
+        public string Id { get; set; }
+        public string Name { get; set; }
+        public string StoreDataId
+        {
+            get; set;
+        }
+        public string AppType { get; set; }
+        public StoreData StoreData
+        {
+            get; set;
+        }
+        public DateTimeOffset Created
+        {
+            get; set;
+        }
+        public string Settings { get; set; }
+
+        public T GetSettings<T>() where T : class, new()
+        {
+            if (String.IsNullOrEmpty(Settings))
+                return new T();
+            return JsonConvert.DeserializeObject<T>(Settings);
+        }
+
+        public void SetSettings(object value)
+        {
+            Settings = value == null ? null : JsonConvert.SerializeObject(value);
+        }
+    }
+}

BTCPayServer/Data/ApplicationDbContext.cs

@@ -26,6 +26,11 @@ namespace BTCPayServer.Data
             get; set;
         }
 
+        public DbSet<AppData> Apps
+        {
+            get; set;
+        }
+
         public DbSet<InvoiceEventData> InvoiceEvents
         {
             get; set;
@@ -107,6 +112,10 @@ namespace BTCPayServer.Data
                        t.StoreDataId
                    });
 
+
+            builder.Entity<AppData>()
+                    .HasOne(a => a.StoreData);
+
             builder.Entity<UserStore>()
                  .HasOne(pt => pt.ApplicationUser)
                  .WithMany(p => p.UserStores)

BTCPayServer/Data/StoreData.cs

@@ -13,6 +13,7 @@ using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
 using BTCPayServer.Services.Rates;
 using BTCPayServer.Payments;
+using BTCPayServer.JsonConverters;
 
 namespace BTCPayServer.Data
 {
@@ -29,6 +30,11 @@ namespace BTCPayServer.Data
             get; set;
         }
 
+        public List<AppData> Apps
+        {
+            get; set;
+        }
+
         [Obsolete("Use GetDerivationStrategies instead")]
         public string DerivationStrategy
         {
@@ -213,6 +219,11 @@ namespace BTCPayServer.Data
         {
             get; set;
         }
+        public bool AllowCoinConversion
+        {
+            get; set;
+        }
+        public string DefaultLang { get; set; }
         [DefaultValue(60)]
         [JsonProperty(DefaultValueHandling = DefaultValueHandling.Populate)]
         public int MonitoringExpiration
@@ -249,6 +260,16 @@ namespace BTCPayServer.Data
         public List<RateRule> RateRules { get; set; } = new List<RateRule>();
         public string PreferredExchange { get; set; }
 
+        [JsonConverter(typeof(CurrencyValueJsonConverter))]
+        public CurrencyValue LightningMaxValue { get; set; }
+        [JsonConverter(typeof(CurrencyValueJsonConverter))]
+        public CurrencyValue OnChainMinValue { get; set; }
+
+        [JsonConverter(typeof(UriJsonConverter))]
+        public Uri CustomLogo { get; set; }
+        [JsonConverter(typeof(UriJsonConverter))]
+        public Uri CustomCSS { get; set; }
+
         public IRateProvider ApplyRateRules(BTCPayNetwork network, IRateProvider rateProvider)
         {
             if (!PreferredExchange.IsCoinAverage())

BTCPayServer/DerivationSchemeParser.cs

@@ -0,0 +1,180 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using NBitcoin;
+using NBitcoin.DataEncoders;
+using NBXplorer;
+using NBXplorer.DerivationStrategy;
+
+namespace BTCPayServer
+{
+    public class DerivationSchemeParser
+    {
+        public Network Network { get; set; }
+        public ChainType ChainType { get; set; }
+        public Script HintScriptPubKey { get; set; }
+
+        public DerivationSchemeParser(Network expectedNetwork, ChainType chainType)
+        {
+            Network = expectedNetwork;
+            ChainType = chainType;
+        }
+
+        public DerivationStrategyBase Parse(string str)
+        {
+            if (str == null)
+                throw new ArgumentNullException(nameof(str));
+            str = str.Trim();
+
+            HashSet<string> hintedLabels = new HashSet<string>();
+
+            var hintDestination = HintScriptPubKey?.GetDestination();
+            if (hintDestination != null)
+            {
+                if (hintDestination is KeyId)
+                {
+                    hintedLabels.Add("legacy");
+                }
+                if (hintDestination is ScriptId)
+                {
+                    hintedLabels.Add("p2sh");
+                }
+            }
+
+            try
+            {
+                var result = new DerivationStrategyFactory(Network).Parse(str);
+                return FindMatch(hintedLabels, result);
+            }
+            catch
+            {
+            }
+
+            Dictionary<uint, string[]> electrumMapping = new Dictionary<uint, string[]>();
+            //Source https://github.com/spesmilo/electrum/blob/9edffd17542de5773e7284a8c8a2673c766bb3c3/lib/bitcoin.py
+            var standard = 0x0488b21eU;
+            electrumMapping.Add(standard, new[] { "legacy" });
+            var p2wpkh_p2sh = 0x049d7cb2U;
+            electrumMapping.Add(p2wpkh_p2sh, new string[] { "p2sh" });
+            var p2wpkh = 0x4b24746U;
+            electrumMapping.Add(p2wpkh, Array.Empty<string>());
+
+            var parts = str.Split('-');
+            for (int i = 0; i < parts.Length; i++)
+            {
+                if (IsLabel(parts[i]))
+                {
+                    hintedLabels.Add(parts[i].Substring(1, parts[i].Length - 2).ToLowerInvariant());
+                    continue;
+                }
+                try
+                {
+                    var data = Encoders.Base58Check.DecodeData(parts[i]);
+                    if (data.Length < 4)
+                        continue;
+                    var prefix = Utils.ToUInt32(data, false);
+                    var standardPrefix = Utils.ToBytes(ChainType == NBXplorer.ChainType.Main ? 0x0488b21eU : 0x043587cf, false);
+                    for (int ii = 0; ii < 4; ii++)
+                        data[ii] = standardPrefix[ii];
+
+                    var derivationScheme = new BitcoinExtPubKey(Encoders.Base58Check.EncodeData(data), Network).ToString();
+                    electrumMapping.TryGetValue(prefix, out string[] labels);
+                    if (labels != null)
+                    {
+                        foreach (var label in labels)
+                        {
+                            hintedLabels.Add(label.ToLowerInvariant());
+                        }
+                    }
+                    parts[i] = derivationScheme;
+                }
+                catch { continue; }
+            }
+
+            if (hintDestination != null)
+            {
+                if (hintDestination is WitKeyId)
+                {
+                    hintedLabels.Remove("legacy");
+                    hintedLabels.Remove("p2sh");
+                }
+            }
+
+            str = string.Join('-', parts.Where(p => !IsLabel(p)));
+            foreach (var label in hintedLabels)
+            {
+                str = $"{str}-[{label}]";
+            }
+
+            return FindMatch(hintedLabels, new DerivationStrategyFactory(Network).Parse(str));
+        }
+
+        private DerivationStrategyBase FindMatch(HashSet<string> hintLabels, DerivationStrategyBase result)
+        {
+            var facto = new DerivationStrategyFactory(Network);
+            var firstKeyPath = new KeyPath("0/0");
+            if (HintScriptPubKey == null)
+                return result;
+            if (HintScriptPubKey == result.Derive(firstKeyPath).ScriptPubKey)
+                return result;
+
+            if (result is MultisigDerivationStrategy)
+                hintLabels.Add("keeporder");
+
+            var resultNoLabels = result.ToString();
+            resultNoLabels = string.Join('-', resultNoLabels.Split('-').Where(p => !IsLabel(p)));
+            foreach (var labels in ItemCombinations(hintLabels.ToList()))
+            {
+                var hinted = facto.Parse(resultNoLabels + '-' + string.Join('-', labels.Select(l=>$"[{l}]").ToArray()));
+                if (HintScriptPubKey == hinted.Derive(firstKeyPath).ScriptPubKey)
+                    return hinted;
+            }
+            throw new FormatException("Could not find any match");
+        }
+
+        private static bool IsLabel(string v)
+        {
+            return v.StartsWith('[') && v.EndsWith(']');
+        }
+
+        /// <summary>
+		/// Method to create lists containing possible combinations of an input list of items. This is 
+		/// basically copied from code by user "jaolho" on this thread:
+		/// http://stackoverflow.com/questions/7802822/all-possible-combinations-of-a-list-of-values
+		/// </summary>
+		/// <typeparam name="T">type of the items on the input list</typeparam>
+		/// <param name="inputList">list of items</param>
+		/// <param name="minimumItems">minimum number of items wanted in the generated combinations, 
+		///                            if zero the empty combination is included,
+		///                            default is one</param>
+		/// <param name="maximumItems">maximum number of items wanted in the generated combinations,
+		///                            default is no maximum limit</param>
+		/// <returns>list of lists for possible combinations of the input items</returns>
+		public static List<List<T>> ItemCombinations<T>(List<T> inputList, int minimumItems = 1,
+                                                        int maximumItems = int.MaxValue)
+        {
+            int nonEmptyCombinations = (int)Math.Pow(2, inputList.Count) - 1;
+            List<List<T>> listOfLists = new List<List<T>>(nonEmptyCombinations + 1);
+
+            if (minimumItems == 0)  // Optimize default case
+                listOfLists.Add(new List<T>());
+
+            for (int i = 1; i <= nonEmptyCombinations; i++)
+            {
+                List<T> thisCombination = new List<T>(inputList.Count);
+                for (int j = 0; j < inputList.Count; j++)
+                {
+                    if ((i >> j & 1) == 1)
+                        thisCombination.Add(inputList[j]);
+                }
+
+                if (thisCombination.Count >= minimumItems && thisCombination.Count <= maximumItems)
+                    listOfLists.Add(thisCombination);
+            }
+
+            return listOfLists;
+        }
+    }
+}

BTCPayServer/Extensions.cs

@@ -25,6 +25,9 @@ using System.Net.WebSockets;
 using BTCPayServer.Services.Invoices;
 using NBitpayClient;
 using BTCPayServer.Payments;
+using Microsoft.AspNetCore.Identity;
+using BTCPayServer.Models;
+using System.Security.Claims;
 
 namespace BTCPayServer
 {

BTCPayServer/Hosting/BTCPayServerServices.cs

@@ -126,6 +126,7 @@ namespace BTCPayServer.Hosting
                 }
                 return dbContext;
             });
+            services.TryAddSingleton<Payments.Lightning.LightningClientFactory>();
 
             services.TryAddSingleton<BTCPayNetworkProvider>(o => 
             {
@@ -133,6 +134,7 @@ namespace BTCPayServer.Hosting
                 return opts.NetworkProvider;
             });
 
+            services.TryAddSingleton<LanguageService>();
             services.TryAddSingleton<NBXplorerDashboard>();
             services.TryAddSingleton<StoreRepository>();
             services.TryAddSingleton<BTCPayWalletProvider>();
@@ -147,7 +149,7 @@ namespace BTCPayServer.Hosting
             services.AddSingleton<IHostedService, Payments.Bitcoin.NBXplorerListener>();
 
             services.AddSingleton<Payments.IPaymentMethodHandler<Payments.Lightning.LightningSupportedPaymentMethod>, Payments.Lightning.LightningLikePaymentHandler>();
-            services.AddSingleton<IHostedService, Payments.Lightning.ChargeListener>();
+            services.AddSingleton<IHostedService, Payments.Lightning.LightningListener>();
 
             services.AddSingleton<IHostedService, NBXplorerWaiters>();
             services.AddSingleton<IHostedService, InvoiceNotificationManager>();
@@ -172,14 +174,14 @@ namespace BTCPayServer.Hosting
 
             services.AddAuthorization(o =>
             {
-                o.AddPolicy("CanAccessStore", builder =>
+                o.AddPolicy(StorePolicies.CanAccessStores, builder =>
                 {
                     builder.AddRequirements(new OwnStoreAuthorizationRequirement());
                 });
 
-                o.AddPolicy("OwnStore", builder =>
+                o.AddPolicy(StorePolicies.OwnStore, builder =>
                 {
-                    builder.AddRequirements(new OwnStoreAuthorizationRequirement("Owner"));
+                    builder.AddRequirements(new OwnStoreAuthorizationRequirement(StoreRoles.Owner));
                 });
             });
 

BTCPayServer/Hosting/Startup.cs

@@ -147,7 +147,25 @@ namespace BTCPayServer.Hosting
             IApplicationBuilder app,
             IHostingEnvironment env,
             IServiceProvider prov,
+            BTCPayServerOptions options,
             ILoggerFactory loggerFactory)
+        {
+            Logs.Configure(loggerFactory);
+            Logs.Configuration.LogInformation($"Root Path: {options.RootPath}");
+            if (options.RootPath.Equals("/", StringComparison.OrdinalIgnoreCase))
+            {
+                ConfigureCore(app, env, prov, loggerFactory);
+            }
+            else
+            {
+                app.Map(options.RootPath, appChild =>
+                {
+                    ConfigureCore(appChild, env, prov, loggerFactory);
+                });
+            }
+        }
+
+        private static void ConfigureCore(IApplicationBuilder app, IHostingEnvironment env, IServiceProvider prov, ILoggerFactory loggerFactory)
         {
             if (env.IsDevelopment())
             {
@@ -155,9 +173,6 @@ namespace BTCPayServer.Hosting
                 app.UseBrowserLink();
             }
 
-
-            Logs.Configure(loggerFactory);
-
             //App insight do not that by itself...
             loggerFactory.AddApplicationInsights(prov, LogLevel.Information);
 

BTCPayServer/JsonConverters/CurrencyValueJsonConverter.cs

@@ -0,0 +1,38 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Reflection;
+using Newtonsoft.Json;
+using NBitcoin.JsonConverters;
+
+namespace BTCPayServer.JsonConverters
+{
+    public class CurrencyValueJsonConverter : JsonConverter
+    {
+        public override bool CanConvert(Type objectType)
+        {
+            return typeof(CurrencyValue).GetTypeInfo().IsAssignableFrom(objectType.GetTypeInfo());
+        }
+
+        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
+        {
+            try
+            {
+                return reader.TokenType == JsonToken.Null ? null :
+                       CurrencyValue.TryParse((string)reader.Value, out var result) ? result :
+                       throw new JsonObjectException("Invalid Currency value", reader);
+            }
+            catch (InvalidCastException)
+            {
+                throw new JsonObjectException("Invalid Currency value", reader);
+            }
+        }
+
+        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
+        {
+            if(value != null)
+                writer.WriteValue(value.ToString());
+        }
+    }
+}

BTCPayServer/JsonConverters/UriJsonConverter.cs

@@ -0,0 +1,38 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Reflection;
+using Newtonsoft.Json;
+using NBitcoin.JsonConverters;
+
+namespace BTCPayServer.JsonConverters
+{
+    public class UriJsonConverter : JsonConverter
+    {
+        public override bool CanConvert(Type objectType)
+        {
+            return typeof(Uri).GetTypeInfo().IsAssignableFrom(objectType.GetTypeInfo());
+        }
+
+        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
+        {
+            try
+            {
+                return reader.TokenType == JsonToken.Null ? null :
+                       Uri.TryCreate((string)reader.Value, UriKind.Absolute, out var result) ? result :
+                       throw new JsonObjectException("Invalid Currency value", reader);
+            }
+            catch (InvalidCastException)
+            {
+                throw new JsonObjectException("Invalid Currency value", reader);
+            }
+        }
+
+        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
+        {
+            if (value != null)
+                writer.WriteValue(((Uri)value).AbsoluteUri);
+        }
+    }
+}

BTCPayServer/Migrations/20180402095640_appdata.Designer.cs

@@ -0,0 +1,537 @@
+// <auto-generated />
+using BTCPayServer.Data;
+using BTCPayServer.Services.Invoices;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage;
+using Microsoft.EntityFrameworkCore.Storage.Internal;
+using System;
+
+namespace BTCPayServer.Migrations
+{
+    [DbContext(typeof(ApplicationDbContext))]
+    [Migration("20180402095640_appdata")]
+    partial class appdata
+    {
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "2.0.1-rtm-125");
+
+            modelBuilder.Entity("BTCPayServer.Data.AddressInvoiceData", b =>
+                {
+                    b.Property<string>("Address")
+                        .ValueGeneratedOnAdd();
+
+                    b.Property<DateTimeOffset?>("CreatedTime");
+
+                    b.Property<string>("InvoiceDataId");
+
+                    b.HasKey("Address");
+
+                    b.HasIndex("InvoiceDataId");
+
+                    b.ToTable("AddressInvoices");
+                });
+
+            modelBuilder.Entity("BTCPayServer.Data.AppData", b =>
+                {
+                    b.Property<string>("Id")
+                        .ValueGeneratedOnAdd();
+
+                    b.Property<string>("AppType");
+
+                    b.Property<DateTimeOffset>("Created");
+
+                    b.Property<string>("Name");
+
+                    b.Property<string>("Settings");
+
+                    b.Property<string>("StoreDataId");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("StoreDataId");
+
+                    b.ToTable("Apps");
+                });
+
+            modelBuilder.Entity("BTCPayServer.Data.HistoricalAddressInvoiceData", b =>
+                {
+                    b.Property<string>("InvoiceDataId");
+
+                    b.Property<string>("Address");
+
+                    b.Property<DateTimeOffset>("Assigned");
+
+                    b.Property<string>("CryptoCode");
+
+                    b.Property<DateTimeOffset?>("UnAssigned");
+
+                    b.HasKey("InvoiceDataId", "Address");
+
+                    b.ToTable("HistoricalAddressInvoices");
+                });
+
+            modelBuilder.Entity("BTCPayServer.Data.InvoiceData", b =>
+                {
+                    b.Property<string>("Id")
+                        .ValueGeneratedOnAdd();
+
+                    b.Property<byte[]>("Blob");
+
+                    b.Property<DateTimeOffset>("Created");
+
+                    b.Property<string>("CustomerEmail");
+
+                    b.Property<string>("ExceptionStatus");
+
+                    b.Property<string>("ItemCode");
+
+                    b.Property<string>("OrderId");
+
+                    b.Property<string>("Status");
+
+                    b.Property<string>("StoreDataId");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("StoreDataId");
+
+                    b.ToTable("Invoices");
+                });
+
+            modelBuilder.Entity("BTCPayServer.Data.InvoiceEventData", b =>
+                {
+                    b.Property<string>("InvoiceDataId");
+
+                    b.Property<string>("UniqueId");
+
+                    b.Property<string>("Message");
+
+                    b.Property<DateTimeOffset>("Timestamp");
+
+                    b.HasKey("InvoiceDataId", "UniqueId");
+
+                    b.ToTable("InvoiceEvents");
+                });
+
+            modelBuilder.Entity("BTCPayServer.Data.PairedSINData", b =>
+                {
+                    b.Property<string>("Id")
+                        .ValueGeneratedOnAdd();
+
+                    b.Property<string>("Facade");
+
+                    b.Property<string>("Label");
+
+                    b.Property<DateTimeOffset>("PairingTime");
+
+                    b.Property<string>("SIN");
+
+                    b.Property<string>("StoreDataId");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("SIN");
+
+                    b.HasIndex("StoreDataId");
+
+                    b.ToTable("PairedSINData");
+                });
+
+            modelBuilder.Entity("BTCPayServer.Data.PairingCodeData", b =>
+                {
+                    b.Property<string>("Id")
+                        .ValueGeneratedOnAdd();
+
+                    b.Property<DateTime>("DateCreated");
+
+                    b.Property<DateTimeOffset>("Expiration");
+
+                    b.Property<string>("Facade");
+
+                    b.Property<string>("Label");
+
+                    b.Property<string>("SIN");
+
+                    b.Property<string>("StoreDataId");
+
+                    b.Property<string>("TokenValue");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("PairingCodes");
+                });
+
+            modelBuilder.Entity("BTCPayServer.Data.PaymentData", b =>
+                {
+                    b.Property<string>("Id")
+                        .ValueGeneratedOnAdd();
+
+                    b.Property<bool>("Accounted");
+
+                    b.Property<byte[]>("Blob");
+
+                    b.Property<string>("InvoiceDataId");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("InvoiceDataId");
+
+                    b.ToTable("Payments");
+                });
+
+            modelBuilder.Entity("BTCPayServer.Data.PendingInvoiceData", b =>
+                {
+                    b.Property<string>("Id")
+                        .ValueGeneratedOnAdd();
+
+                    b.HasKey("Id");
+
+                    b.ToTable("PendingInvoices");
+                });
+
+            modelBuilder.Entity("BTCPayServer.Data.RefundAddressesData", b =>
+                {
+                    b.Property<string>("Id")
+                        .ValueGeneratedOnAdd();
+
+                    b.Property<byte[]>("Blob");
+
+                    b.Property<string>("InvoiceDataId");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("InvoiceDataId");
+
+                    b.ToTable("RefundAddresses");
+                });
+
+            modelBuilder.Entity("BTCPayServer.Data.SettingData", b =>
+                {
+                    b.Property<string>("Id")
+                        .ValueGeneratedOnAdd();
+
+                    b.Property<string>("Value");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Settings");
+                });
+
+            modelBuilder.Entity("BTCPayServer.Data.StoreData", b =>
+                {
+                    b.Property<string>("Id")
+                        .ValueGeneratedOnAdd();
+
+                    b.Property<string>("DefaultCrypto");
+
+                    b.Property<string>("DerivationStrategies");
+
+                    b.Property<string>("DerivationStrategy");
+
+                    b.Property<int>("SpeedPolicy");
+
+                    b.Property<byte[]>("StoreBlob");
+
+                    b.Property<byte[]>("StoreCertificate");
+
+                    b.Property<string>("StoreName");
+
+                    b.Property<string>("StoreWebsite");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Stores");
+                });
+
+            modelBuilder.Entity("BTCPayServer.Data.UserStore", b =>
+                {
+                    b.Property<string>("ApplicationUserId");
+
+                    b.Property<string>("StoreDataId");
+
+                    b.Property<string>("Role");
+
+                    b.HasKey("ApplicationUserId", "StoreDataId");
+
+                    b.HasIndex("StoreDataId");
+
+                    b.ToTable("UserStore");
+                });
+
+            modelBuilder.Entity("BTCPayServer.Models.ApplicationUser", b =>
+                {
+                    b.Property<string>("Id")
+                        .ValueGeneratedOnAdd();
+
+                    b.Property<int>("AccessFailedCount");
+
+                    b.Property<string>("ConcurrencyStamp")
+                        .IsConcurrencyToken();
+
+                    b.Property<string>("Email")
+                        .HasMaxLength(256);
+
+                    b.Property<bool>("EmailConfirmed");
+
+                    b.Property<bool>("LockoutEnabled");
+
+                    b.Property<DateTimeOffset?>("LockoutEnd");
+
+                    b.Property<string>("NormalizedEmail")
+                        .HasMaxLength(256);
+
+                    b.Property<string>("NormalizedUserName")
+                        .HasMaxLength(256);
+
+                    b.Property<string>("PasswordHash");
+
+                    b.Property<string>("PhoneNumber");
+
+                    b.Property<bool>("PhoneNumberConfirmed");
+
+                    b.Property<bool>("RequiresEmailConfirmation");
+
+                    b.Property<string>("SecurityStamp");
+
+                    b.Property<bool>("TwoFactorEnabled");
+
+                    b.Property<string>("UserName")
+                        .HasMaxLength(256);
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("NormalizedEmail")
+                        .HasName("EmailIndex");
+
+                    b.HasIndex("NormalizedUserName")
+                        .IsUnique()
+                        .HasName("UserNameIndex");
+
+                    b.ToTable("AspNetUsers");
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRole", b =>
+                {
+                    b.Property<string>("Id")
+                        .ValueGeneratedOnAdd();
+
+                    b.Property<string>("ConcurrencyStamp")
+                        .IsConcurrencyToken();
+
+                    b.Property<string>("Name")
+                        .HasMaxLength(256);
+
+                    b.Property<string>("NormalizedName")
+                        .HasMaxLength(256);
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("NormalizedName")
+                        .IsUnique()
+                        .HasName("RoleNameIndex");
+
+                    b.ToTable("AspNetRoles");
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<string>", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd();
+
+                    b.Property<string>("ClaimType");
+
+                    b.Property<string>("ClaimValue");
+
+                    b.Property<string>("RoleId")
+                        .IsRequired();
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("RoleId");
+
+                    b.ToTable("AspNetRoleClaims");
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<string>", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd();
+
+                    b.Property<string>("ClaimType");
+
+                    b.Property<string>("ClaimValue");
+
+                    b.Property<string>("UserId")
+                        .IsRequired();
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("AspNetUserClaims");
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<string>", b =>
+                {
+                    b.Property<string>("LoginProvider");
+
+                    b.Property<string>("ProviderKey");
+
+                    b.Property<string>("ProviderDisplayName");
+
+                    b.Property<string>("UserId")
+                        .IsRequired();
+
+                    b.HasKey("LoginProvider", "ProviderKey");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("AspNetUserLogins");
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<string>", b =>
+                {
+                    b.Property<string>("UserId");
+
+                    b.Property<string>("RoleId");
+
+                    b.HasKey("UserId", "RoleId");
+
+                    b.HasIndex("RoleId");
+
+                    b.ToTable("AspNetUserRoles");
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<string>", b =>
+                {
+                    b.Property<string>("UserId");
+
+                    b.Property<string>("LoginProvider");
+
+                    b.Property<string>("Name");
+
+                    b.Property<string>("Value");
+
+                    b.HasKey("UserId", "LoginProvider", "Name");
+
+                    b.ToTable("AspNetUserTokens");
+                });
+
+            modelBuilder.Entity("BTCPayServer.Data.AddressInvoiceData", b =>
+                {
+                    b.HasOne("BTCPayServer.Data.InvoiceData", "InvoiceData")
+                        .WithMany("AddressInvoices")
+                        .HasForeignKey("InvoiceDataId");
+                });
+
+            modelBuilder.Entity("BTCPayServer.Data.AppData", b =>
+                {
+                    b.HasOne("BTCPayServer.Data.StoreData", "StoreData")
+                        .WithMany("Apps")
+                        .HasForeignKey("StoreDataId");
+                });
+
+            modelBuilder.Entity("BTCPayServer.Data.HistoricalAddressInvoiceData", b =>
+                {
+                    b.HasOne("BTCPayServer.Data.InvoiceData")
+                        .WithMany("HistoricalAddressInvoices")
+                        .HasForeignKey("InvoiceDataId")
+                        .OnDelete(DeleteBehavior.Cascade);
+                });
+
+            modelBuilder.Entity("BTCPayServer.Data.InvoiceData", b =>
+                {
+                    b.HasOne("BTCPayServer.Data.StoreData", "StoreData")
+                        .WithMany()
+                        .HasForeignKey("StoreDataId");
+                });
+
+            modelBuilder.Entity("BTCPayServer.Data.InvoiceEventData", b =>
+                {
+                    b.HasOne("BTCPayServer.Data.InvoiceData")
+                        .WithMany("Events")
+                        .HasForeignKey("InvoiceDataId")
+                        .OnDelete(DeleteBehavior.Cascade);
+                });
+
+            modelBuilder.Entity("BTCPayServer.Data.PaymentData", b =>
+                {
+                    b.HasOne("BTCPayServer.Data.InvoiceData", "InvoiceData")
+                        .WithMany("Payments")
+                        .HasForeignKey("InvoiceDataId");
+                });
+
+            modelBuilder.Entity("BTCPayServer.Data.RefundAddressesData", b =>
+                {
+                    b.HasOne("BTCPayServer.Data.InvoiceData", "InvoiceData")
+                        .WithMany("RefundAddresses")
+                        .HasForeignKey("InvoiceDataId");
+                });
+
+            modelBuilder.Entity("BTCPayServer.Data.UserStore", b =>
+                {
+                    b.HasOne("BTCPayServer.Models.ApplicationUser", "ApplicationUser")
+                        .WithMany("UserStores")
+                        .HasForeignKey("ApplicationUserId")
+                        .OnDelete(DeleteBehavior.Cascade);
+
+                    b.HasOne("BTCPayServer.Data.StoreData", "StoreData")
+                        .WithMany("UserStores")
+                        .HasForeignKey("StoreDataId")
+                        .OnDelete(DeleteBehavior.Cascade);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<string>", b =>
+                {
+                    b.HasOne("Microsoft.AspNetCore.Identity.IdentityRole")
+                        .WithMany()
+                        .HasForeignKey("RoleId")
+                        .OnDelete(DeleteBehavior.Cascade);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<string>", b =>
+                {
+                    b.HasOne("BTCPayServer.Models.ApplicationUser")
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<string>", b =>
+                {
+                    b.HasOne("BTCPayServer.Models.ApplicationUser")
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<string>", b =>
+                {
+                    b.HasOne("Microsoft.AspNetCore.Identity.IdentityRole")
+                        .WithMany()
+                        .HasForeignKey("RoleId")
+                        .OnDelete(DeleteBehavior.Cascade);
+
+                    b.HasOne("BTCPayServer.Models.ApplicationUser")
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<string>", b =>
+                {
+                    b.HasOne("BTCPayServer.Models.ApplicationUser")
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade);
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

BTCPayServer/Migrations/20180402095640_appdata.cs

@@ -0,0 +1,45 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+using System;
+using System.Collections.Generic;
+
+namespace BTCPayServer.Migrations
+{
+    public partial class appdata : Migration
+    {
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "Apps",
+                columns: table => new
+                {
+                    Id = table.Column<string>(nullable: false),
+                    AppType = table.Column<string>(nullable: true),
+                    Created = table.Column<DateTimeOffset>(nullable: false),
+                    Name = table.Column<string>(nullable: true),
+                    Settings = table.Column<string>(nullable: true),
+                    StoreDataId = table.Column<string>(nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Apps", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Apps_Stores_StoreDataId",
+                        column: x => x.StoreDataId,
+                        principalTable: "Stores",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Restrict);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Apps_StoreDataId",
+                table: "Apps",
+                column: "StoreDataId");
+        }
+
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "Apps");
+        }
+    }
+}

BTCPayServer/Migrations/ApplicationDbContextModelSnapshot.cs

@@ -1,9 +1,12 @@
 // <auto-generated />
 using BTCPayServer.Data;
+using BTCPayServer.Services.Invoices;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore.Infrastructure;
 using Microsoft.EntityFrameworkCore.Metadata;
 using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage;
+using Microsoft.EntityFrameworkCore.Storage.Internal;
 using System;
 
 namespace BTCPayServer.Migrations
@@ -33,6 +36,28 @@ namespace BTCPayServer.Migrations
                     b.ToTable("AddressInvoices");
                 });
 
+            modelBuilder.Entity("BTCPayServer.Data.AppData", b =>
+                {
+                    b.Property<string>("Id")
+                        .ValueGeneratedOnAdd();
+
+                    b.Property<string>("AppType");
+
+                    b.Property<DateTimeOffset>("Created");
+
+                    b.Property<string>("Name");
+
+                    b.Property<string>("Settings");
+
+                    b.Property<string>("StoreDataId");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("StoreDataId");
+
+                    b.ToTable("Apps");
+                });
+
             modelBuilder.Entity("BTCPayServer.Data.HistoricalAddressInvoiceData", b =>
                 {
                     b.Property<string>("InvoiceDataId");
@@ -404,6 +429,13 @@ namespace BTCPayServer.Migrations
                         .HasForeignKey("InvoiceDataId");
                 });
 
+            modelBuilder.Entity("BTCPayServer.Data.AppData", b =>
+                {
+                    b.HasOne("BTCPayServer.Data.StoreData", "StoreData")
+                        .WithMany("Apps")
+                        .HasForeignKey("StoreDataId");
+                });
+
             modelBuilder.Entity("BTCPayServer.Data.HistoricalAddressInvoiceData", b =>
                 {
                     b.HasOne("BTCPayServer.Data.InvoiceData")

BTCPayServer/Models/AppViewModels/CreateAppViewModel.cs

@@ -0,0 +1,57 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Threading.Tasks;
+using BTCPayServer.Data;
+using BTCPayServer.Services.Apps;
+using Microsoft.AspNetCore.Mvc.Rendering;
+
+namespace BTCPayServer.Models.AppViewModels
+{
+    public class CreateAppViewModel
+    {
+        public CreateAppViewModel()
+        {
+            SetApps();
+        }
+        class Format
+        {
+            public string Name { get; set; }
+            public string Value { get; set; }
+        }
+        [Required]
+        [MaxLength(50)]
+        [MinLength(1)]
+        public string Name { get; set; }
+
+        [Display(Name = "Store")]
+        public string SelectedStore { get; set; }
+
+        public void SetStores(StoreData[] stores)
+        {
+            var defaultStore = stores[0].Id;
+            var choices = stores.Select(o => new Format() { Name = o.StoreName, Value = o.Id }).ToArray();
+            var chosen = choices.FirstOrDefault(f => f.Value == defaultStore) ?? choices.FirstOrDefault();
+            Stores = new SelectList(choices, nameof(chosen.Value), nameof(chosen.Name), chosen);
+            SelectedStore = chosen.Value;
+        }
+
+        public SelectList Stores { get; set; }
+
+        [Display(Name = "App type")]
+        public string SelectedAppType { get; set; }
+
+        public SelectList AppTypes { get; set; }
+
+        void SetApps()
+        {
+            var defaultAppType = AppType.PointOfSale.ToString();
+            var choices = typeof(AppType).GetEnumNames().Select(o => new Format() { Name = o, Value = o }).ToArray();
+            var chosen = choices.FirstOrDefault(f => f.Value == defaultAppType) ?? choices.FirstOrDefault();
+            AppTypes = new SelectList(choices, nameof(chosen.Value), nameof(chosen.Name), chosen);
+            SelectedAppType = chosen.Value;
+        }
+
+    }
+}

BTCPayServer/Models/AppViewModels/ListAppsViewModel.cs

@@ -0,0 +1,24 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace BTCPayServer.Models.AppViewModels
+{
+    public class ListAppsViewModel
+    {
+        public class ListAppViewModel
+        {
+            public string Id { get; set; }
+            public string StoreName { get; set; }
+            public string StoreId { get; set; }
+            public string AppName { get; set; }
+            public string AppType { get; set; }
+            public bool IsOwner { get; set; }
+            public string UpdateAction { get { return "Update" + AppType; } }
+            public string ViewAction { get { return "View" + AppType; } }
+        }
+
+        public ListAppViewModel[] Apps { get; set; }
+    }
+}

BTCPayServer/Models/AppViewModels/UpdatePointOfSaleViewModel.cs

@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace BTCPayServer.Models.AppViewModels
+{
+    public class UpdatePointOfSaleViewModel
+    {
+        [Required]
+        [MaxLength(30)]
+        public string Title { get; set; }
+        [Required]
+        [MaxLength(5)]
+        public string Currency { get; set; }
+        [Required]
+        [MaxLength(5000)]
+        public string Template { get; set; }
+    }
+}

BTCPayServer/Models/AppViewModels/ViewPointOfSaleViewModel.cs

@@ -0,0 +1,24 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace BTCPayServer.Models.AppViewModels
+{
+    public class ViewPointOfSaleViewModel
+    {
+        public class Item
+        {
+            public class ItemPrice
+            {
+                public string Formatted { get; set; }
+                public decimal Value { get; set; }
+            }
+            public string Id { get; set; }
+            public ItemPrice Price { get; set; }
+            public string Title { get; set; }
+        }
+        public string Title { get; set; }
+        public Item[] Items { get; set; }
+    }
+}

BTCPayServer/Models/InvoiceResponse.cs

@@ -42,7 +42,6 @@ namespace BTCPayServer.Models
     {
         //"url":"https://test.bitpay.com/invoice?id=9saCHtp1zyPcNoi3rDdBu8"
         [JsonProperty("url")]
-        [Obsolete("Use CryptoInfo.Url instead")]
         public string Url
         {
             get; set;

BTCPayServer/Models/InvoicingModels/PaymentModel.cs

@@ -13,7 +13,11 @@ namespace BTCPayServer.Models.InvoicingModels
             public string CryptoImage { get; set; }
             public string Link { get; set; }
         }
+        public string CustomCSSLink { get; set; }
+        public string CustomLogoLink { get; set; }
+        public string DefaultLang { get; set; }
         public List<AvailableCrypto> AvailableCryptos { get; set; } = new List<AvailableCrypto>();
+        public bool IsLightning { get; set; }
         public string CryptoCode { get; set; }
         public string ServerUrl { get; set; }
         public string InvoiceId { get; set; }
@@ -43,5 +47,8 @@ namespace BTCPayServer.Models.InvoicingModels
         public int MaxTimeMinutes { get; internal set; }
         public string PaymentType { get; internal set; }
         public string PaymentMethodId { get; internal set; }
+
+        public bool AllowCoinConversion { get; set; }
+        public string PeerInfo { get; set; }
     }
 }

BTCPayServer/Models/ServerViewModels/UserViewModel.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace BTCPayServer.Models.ServerViewModels
+{
+    public class UserViewModel
+    {
+        public string Id { get; set; }
+        public string Email { get; set; }
+        [Display(Name = "Is admin")]
+        public bool IsAdmin { get; set; }
+        public string StatusMessage { get; set; }
+    }
+}

BTCPayServer/Models/StoreViewModels/CheckoutExperienceViewModel.cs

@@ -0,0 +1,62 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Threading.Tasks;
+using BTCPayServer.Services;
+using Microsoft.AspNetCore.Mvc.Rendering;
+
+namespace BTCPayServer.Models.StoreViewModels
+{
+    public class CheckoutExperienceViewModel
+    {
+        class Format
+        {
+            public string Name { get; set; }
+            public string Value { get; set; }
+        }
+        public SelectList CryptoCurrencies { get; set; }
+        public SelectList Languages { get; set; }
+
+        [Display(Name = "Default crypto currency on checkout")]
+        public string DefaultCryptoCurrency { get; set; }
+        [Display(Name = "Default language on checkout")]
+        public string DefaultLang { get; set; }
+        [Display(Name = "Allow conversion through third party (Shapeshift, Changelly...)")]
+        public bool AllowCoinConversion
+        {
+            get; set;
+        }
+        [Display(Name = "Do not propose lightning payment if value of the invoice is above...")]
+        [MaxLength(20)]
+        public string LightningMaxValue { get; set; }
+
+        [Display(Name = "Do not propose on chain payment if the value of the invoice is below...")]
+        [MaxLength(20)]
+        public string OnChainMinValue { get; set; }
+
+        [Display(Name = "Link to a custom CSS stylesheet")]
+        [Url]
+        public string CustomCSS { get; set; }
+        [Display(Name = "Link to a custom logo")]
+        [Url]
+        public string CustomLogo { get; set; }
+
+        public void SetCryptoCurrencies(ExplorerClientProvider explorerProvider, string defaultCrypto)
+        {
+            var choices = explorerProvider.GetAll().Select(o => new Format() { Name = o.Item1.CryptoCode, Value = o.Item1.CryptoCode }).ToArray();
+            var chosen = choices.FirstOrDefault(f => f.Value == defaultCrypto) ?? choices.FirstOrDefault();
+            CryptoCurrencies = new SelectList(choices, nameof(chosen.Value), nameof(chosen.Name), chosen);
+            DefaultCryptoCurrency = chosen.Name;
+        }
+
+        public void SetLanguages(LanguageService langService, string defaultLang)
+        {
+            defaultLang = defaultLang ?? "en-US";
+            var choices = langService.GetLanguages().Select(o => new Format() { Name = o.DisplayName, Value = o.Code }).ToArray();
+            var chosen = choices.FirstOrDefault(f => f.Value == defaultLang) ?? choices.FirstOrDefault();
+            Languages = new SelectList(choices, nameof(chosen.Value), nameof(chosen.Name), chosen);
+            DefaultLang = chosen.Value;
+        }
+    }
+}

BTCPayServer/Models/StoreViewModels/DerivationSchemeViewModel.cs

@@ -9,20 +9,8 @@ namespace BTCPayServer.Models.StoreViewModels
 {
     public class DerivationSchemeViewModel
     {
-        class Format
-        {
-            public string Name { get; set; }
-            public string Value { get; set; }
-        }
         public DerivationSchemeViewModel()
         {
-            var btcPay = new Format { Name = "BTCPay", Value = "BTCPay" };
-            DerivationSchemeFormat = btcPay.Value;
-            DerivationSchemeFormats = new SelectList(new Format[]
-            {
-                btcPay,
-                new Format { Name = "Electrum", Value = "Electrum" },
-            }, nameof(btcPay.Value), nameof(btcPay.Name), btcPay);
         }
         public string DerivationScheme
         {
@@ -34,33 +22,12 @@ namespace BTCPayServer.Models.StoreViewModels
             get; set;
         } = new List<(string KeyPath, string Address)>();
 
-        [Display(Name = "Derivation Scheme format")]
-        public string DerivationSchemeFormat
-        {
-            get;
-            set;
-        }
-
-        [Display(Name = "Crypto currency")]
-        public string CryptoCurrency
-        {
-            get;
-            set;
-        }
-
+        public string CryptoCode { get; set; }
+        [Display(Name = "Hint address")]
+        public string HintAddress { get; set; }
         public bool Confirmation { get; set; }
 
-        public SelectList CryptoCurrencies { get; set; }
-        public SelectList DerivationSchemeFormats { get; set; }
-
         public string ServerUrl { get; set; }
-
-        public void SetCryptoCurrencies(ExplorerClientProvider explorerProvider, string selectedScheme)
-        {
-            var choices = explorerProvider.GetAll().Select(o => new Format() { Name = o.Item1.CryptoCode, Value = o.Item1.CryptoCode }).ToArray();
-            var chosen = choices.FirstOrDefault(f => f.Name == selectedScheme) ?? choices.FirstOrDefault();
-            CryptoCurrencies = new SelectList(choices, nameof(chosen.Value), nameof(chosen.Name), chosen);
-            CryptoCurrency = chosen.Name;
-        }
+        public string StatusMessage { get; internal set; }
     }
 }

BTCPayServer/Models/StoreViewModels/LightningNodeViewModel.cs

@@ -9,11 +9,6 @@ namespace BTCPayServer.Models.StoreViewModels
 {
     public class LightningNodeViewModel
     {
-        class Format
-        {
-            public string Name { get; set; }
-            public string Value { get; set; }
-        }
         [Display(Name = "Lightning charge url")]
         public string Url
         {
@@ -21,24 +16,12 @@ namespace BTCPayServer.Models.StoreViewModels
             set;
         }
 
-        [Display(Name = "Crypto currency")]
-        public string CryptoCurrency
+        public string CryptoCode
         {
             get;
             set;
         }
-        public SelectList CryptoCurrencies { get; set; }
         public string StatusMessage { get; set; }
         public string InternalLightningNode { get; internal set; }
-
-        public void SetCryptoCurrencies(BTCPayNetworkProvider networkProvider, string selectedScheme)
-        {
-            var choices = networkProvider.GetAll()
-                            .Where(n => n.CLightningNetworkName != null)
-                            .Select(o => new Format() { Name = o.CryptoCode, Value = o.CryptoCode }).ToArray();
-            var chosen = choices.FirstOrDefault(f => f.Name == selectedScheme) ?? choices.FirstOrDefault();
-            CryptoCurrencies = new SelectList(choices, nameof(chosen.Value), nameof(chosen.Name), chosen);
-            CryptoCurrency = chosen.Name;
-        }
     }
 }

BTCPayServer/Models/StoreViewModels/StoreUsersViewModel.cs

@@ -0,0 +1,28 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace BTCPayServer.Models.StoreViewModels
+{
+    public class StoreUsersViewModel
+    {
+        public class StoreUserViewModel
+        {
+            public string Email { get; set; }
+            public string Role { get; set; }
+            public string Id { get; set; }
+        }
+        public StoreUsersViewModel()
+        {
+            Role = StoreRoles.Guest;
+        }
+        [Required]
+        [EmailAddress]
+        public string Email { get; set; }
+        public string StoreId { get; set; }
+        public string Role { get; set; }
+        public List<StoreUserViewModel> Users { get; set; }
+    }
+}

BTCPayServer/Models/StoreViewModels/StoreViewModel.cs

@@ -1,4 +1,5 @@
-using BTCPayServer.Services.Invoices;
+using BTCPayServer.Services;
+using BTCPayServer.Services.Invoices;
 using BTCPayServer.Validations;
 using Microsoft.AspNetCore.Mvc.Rendering;
 using System;
@@ -16,11 +17,7 @@ namespace BTCPayServer.Models.StoreViewModels
             public string Crypto { get; set; }
             public string Value { get; set; }
         }
-        class Format
-        {
-            public string Name { get; set; }
-            public string Value { get; set; }
-        }
+
         public StoreViewModel()
         {
 
@@ -94,15 +91,6 @@ namespace BTCPayServer.Models.StoreViewModels
             get; set;
         }
 
-        public string StatusMessage
-        {
-            get; set;
-        }
-        public SelectList CryptoCurrencies { get; set; }
-
-        [Display(Name = "Default crypto currency on checkout")]
-        public string DefaultCryptoCurrency { get; set; }
-
         public class LightningNode
         {
             public string CryptoCode { get; set; }
@@ -113,12 +101,5 @@ namespace BTCPayServer.Models.StoreViewModels
             get; set;
         } = new List<LightningNode>();
 
-        public void SetCryptoCurrencies(ExplorerClientProvider explorerProvider, string defaultCrypto)
-        {
-            var choices = explorerProvider.GetAll().Select(o => new Format() { Name = o.Item1.CryptoCode, Value = o.Item1.CryptoCode }).ToArray();
-            var chosen = choices.FirstOrDefault(f => f.Name == defaultCrypto) ?? choices.FirstOrDefault();
-            CryptoCurrencies = new SelectList(choices, nameof(chosen.Value), nameof(chosen.Name), chosen);
-            DefaultCryptoCurrency = chosen.Name;
-        }
     }
 }

BTCPayServer/Models/StoreViewModels/StoresViewModel.cs

@@ -8,14 +8,11 @@ namespace BTCPayServer.Models.StoreViewModels
 {
     public class StoresViewModel
     {
-        public string StatusMessage
-        {
-            get; set;
-        }
         public List<StoreViewModel> Stores
         {
             get; set;
         } = new List<StoreViewModel>();
+
         public class StoreViewModel
         {
             public string Name
@@ -32,6 +29,11 @@ namespace BTCPayServer.Models.StoreViewModels
             {
                 get; set;
             }
+            public bool IsOwner
+            {
+                get;
+                set;
+            }
             public string[] Balances
             {
                 get; set;

BTCPayServer/Models/StoreViewModels/WalletModel.cs

@@ -10,25 +10,10 @@ namespace BTCPayServer.Models.StoreViewModels
     public class WalletModel
     {
         public string ServerUrl { get; set; }
-        public SelectList CryptoCurrencies { get; set; }
-        [Display(Name = "Crypto currency")]
         public string CryptoCurrency
         {
             get;
             set;
         }
-
-        class Format
-        {
-            public string Name { get; set; }
-            public string Value { get; set; }
-        }
-        public void SetCryptoCurrencies(ExplorerClientProvider explorerProvider, string selectedScheme)
-        {
-            var choices = explorerProvider.GetAll().Select(o => new Format() { Name = o.Item1.CryptoCode, Value = o.Item1.CryptoCode }).ToArray();
-            var chosen = choices.FirstOrDefault(f => f.Name == selectedScheme) ?? choices.FirstOrDefault();
-            CryptoCurrencies = new SelectList(choices, nameof(chosen.Value), nameof(chosen.Name), chosen);
-            CryptoCurrency = chosen.Name;
-        }
     }
 }

BTCPayServer/Payments/Bitcoin/BitcoinLikePaymentHandler.cs

@@ -29,6 +29,8 @@ namespace BTCPayServer.Payments.Bitcoin
 
         public override async Task<IPaymentMethodDetails> CreatePaymentMethodDetails(DerivationStrategy supportedPaymentMethod, PaymentMethod paymentMethod, BTCPayNetwork network)
         {
+            if (!_ExplorerProvider.IsAvailable(network))
+                throw new PaymentMethodUnavailableException($"Full node not available");
             var getFeeRate = _FeeRateProviderFactory.CreateFeeProvider(network).GetFeeRateAsync();
             var getAddress = _WalletProvider.GetWallet(network).ReserveAddressAsync(supportedPaymentMethod.DerivationStrategyBase);
             Payments.Bitcoin.BitcoinLikeOnChainPaymentMethod onchainMethod = new Payments.Bitcoin.BitcoinLikeOnChainPaymentMethod();
@@ -37,10 +39,5 @@ namespace BTCPayServer.Payments.Bitcoin
             onchainMethod.DepositAddress = (await getAddress).ToString();
             return onchainMethod;
         }
-
-        public override Task<bool> IsAvailable(DerivationStrategy supportedPaymentMethod, BTCPayNetwork network)
-        {
-            return Task.FromResult(_ExplorerProvider.IsAvailable(network));
-        }
     }
 }

BTCPayServer/Payments/IPaymentMethodHandler.cs

@@ -11,14 +11,6 @@ namespace BTCPayServer.Payments
     /// </summary>
     public interface IPaymentMethodHandler
     {
-        /// <summary>
-        /// Returns true if the dependencies for a specific payment method are satisfied. 
-        /// </summary>
-        /// <param name="supportedPaymentMethod"></param>
-        /// <param name="network"></param>
-        /// <returns>true if this payment method is available</returns>
-        Task<bool> IsAvailable(ISupportedPaymentMethod supportedPaymentMethod, BTCPayNetwork network);
-
         /// <summary>
         /// Create needed to track payments of this invoice
         /// </summary>
@@ -31,7 +23,6 @@ namespace BTCPayServer.Payments
 
     public interface IPaymentMethodHandler<T> : IPaymentMethodHandler where T : ISupportedPaymentMethod
     {
-        Task<bool> IsAvailable(T supportedPaymentMethod, BTCPayNetwork network);
         Task<IPaymentMethodDetails> CreatePaymentMethodDetails(T supportedPaymentMethod, PaymentMethod paymentMethod, BTCPayNetwork network);
     }
 
@@ -47,16 +38,5 @@ namespace BTCPayServer.Payments
             }
             throw new NotSupportedException("Invalid supportedPaymentMethod");
         }
-
-        public abstract Task<bool> IsAvailable(T supportedPaymentMethod, BTCPayNetwork network);
-
-        Task<bool> IPaymentMethodHandler.IsAvailable(ISupportedPaymentMethod supportedPaymentMethod, BTCPayNetwork network)
-        {
-            if(supportedPaymentMethod is T method)
-            { 
-                return IsAvailable(method, network);
-            }
-            return Task.FromResult(false);
-        }
     }
 }

BTCPayServer/Payments/Lightning/CLightning/CLightningInvoice.cs

@@ -0,0 +1,35 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using NBitcoin;
+using Newtonsoft.Json;
+
+namespace BTCPayServer.Payments.Lightning.CLightning
+{
+    public class CLightningInvoice
+    {
+        [JsonConverter(typeof(NBitcoin.JsonConverters.UInt256JsonConverter))]
+        [JsonProperty("payment_hash")]
+        public uint256 PaymentHash { get; set; }
+
+        [JsonProperty("msatoshi")]
+        [JsonConverter(typeof(JsonConverters.LightMoneyJsonConverter))]
+        public LightMoney MilliSatoshi { get; set; }
+        [JsonConverter(typeof(NBitcoin.JsonConverters.DateTimeToUnixTimeConverter))]
+        [JsonProperty("expiry_time")]
+        public DateTimeOffset ExpiryTime { get; set; }
+        [JsonConverter(typeof(NBitcoin.JsonConverters.DateTimeToUnixTimeConverter))]
+        [JsonProperty("expires_at")]
+        public DateTimeOffset ExpiryAt { get; set; }
+        [JsonProperty("bolt11")]
+        public string BOLT11 { get; set; }
+        [JsonProperty("pay_index")]
+        public int? PayIndex { get; set; }
+        public string Label { get; set; }
+        public string Status { get; set; }
+        [JsonProperty("paid_at")]
+        [JsonConverter(typeof(NBitcoin.JsonConverters.DateTimeToUnixTimeConverter))]
+        public DateTimeOffset? PaidAt { get; set; }
+    }
+}

BTCPayServer/Payments/Lightning/CLightning/CLightningRPCClient.cs

@@ -0,0 +1,230 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Net;
+using System.Net.Sockets;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+using Mono.Unix;
+using NBitcoin;
+using NBitcoin.RPC;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Linq;
+
+namespace BTCPayServer.Payments.Lightning.CLightning
+{
+    public class LightningRPCException : Exception
+    {
+        public LightningRPCException(string message) : base(message)
+        {
+
+        }
+    }
+    public class CLightningRPCClient : ILightningInvoiceClient, ILightningListenInvoiceSession
+    {
+        public Network Network { get; private set; }
+        public Uri Address { get; private set; }
+
+        public CLightningRPCClient(Uri address, Network network)
+        {
+            if (address == null)
+                throw new ArgumentNullException(nameof(address));
+            if (network == null)
+                throw new ArgumentNullException(nameof(network));
+            if(address.Scheme == "file")
+            {
+                address = new UriBuilder(address) { Scheme = "unix" }.Uri;
+            }
+            Address = address;
+            Network = network;
+        }
+
+        public Task<Charge.GetInfoResponse> GetInfoAsync(CancellationToken cancellation = default(CancellationToken))
+        {
+            return SendCommandAsync<Charge.GetInfoResponse>("getinfo", cancellation: cancellation);
+        }
+
+        public Task SendAsync(string bolt11)
+        {
+            return SendCommandAsync<object>("pay", new[] { bolt11 }, true);
+        }
+
+        public async Task<PeerInfo[]> ListPeersAsync()
+        {
+            var peers = await SendCommandAsync<PeerInfo[]>("listpeers", isArray: true);
+            foreach (var peer in peers)
+            {
+                peer.Channels = peer.Channels ?? Array.Empty<ChannelInfo>();
+            }
+            return peers;
+        }
+
+        public Task FundChannelAsync(NodeInfo nodeInfo, Money money)
+        {
+            return SendCommandAsync<object>("fundchannel", new object[] { nodeInfo.NodeId, money.Satoshi }, true);
+        }
+
+        public Task ConnectAsync(NodeInfo nodeInfo)
+        {
+            return SendCommandAsync<object>("connect", new[] { $"{nodeInfo.NodeId}@{nodeInfo.Host}:{nodeInfo.Port}" }, true);
+        }
+
+        static Encoding UTF8 = new UTF8Encoding(false);
+        private async Task<T> SendCommandAsync<T>(string command, object[] parameters = null, bool noReturn = false, bool isArray = false, CancellationToken cancellation = default(CancellationToken))
+        {
+            parameters = parameters ?? Array.Empty<string>();
+            using (Socket socket = await Connect())
+            {
+                using (var networkStream = new NetworkStream(socket))
+                {
+                    using (var textWriter = new StreamWriter(networkStream, UTF8, 1024 * 10, true))
+                    {
+                        using (var jsonWriter = new JsonTextWriter(textWriter))
+                        {
+                            var req = new JObject();
+                            req.Add("id", 0);
+                            req.Add("method", command);
+                            req.Add("params", new JArray(parameters));
+                            await req.WriteToAsync(jsonWriter, cancellation);
+                            await jsonWriter.FlushAsync(cancellation);
+                        }
+                        await textWriter.FlushAsync();
+                    }
+                    await networkStream.FlushAsync(cancellation);
+                    using (var textReader = new StreamReader(networkStream, UTF8, false, 1024 * 10, true))
+                    {
+                        using (var jsonReader = new JsonTextReader(textReader))
+                        {
+                            var resultAsync = JObject.LoadAsync(jsonReader, cancellation);
+
+                            // without this hack resultAsync is blocking even if cancellation happen
+                            using (cancellation.Register(() => { socket.Dispose(); }))
+                            {
+                                var result = await resultAsync;
+                                var error = result.Property("error");
+                                if (error != null)
+                                {
+                                    throw new LightningRPCException(error.Value["message"].Value<string>());
+                                }
+                                if (noReturn)
+                                    return default(T);
+                                if (isArray)
+                                {
+                                    return result["result"].Children().First().Children().First().ToObject<T>();
+                                }
+                                return result["result"].ToObject<T>();
+                            }
+                        }
+                    }
+                }
+            }
+        }
+
+        private async Task<Socket> Connect()
+        {
+            Socket socket = null;
+            EndPoint endpoint = null;
+            if (Address.Scheme == "tcp" || Address.Scheme == "tcp")
+            {
+                var domain = Address.DnsSafeHost;
+                if (!IPAddress.TryParse(domain, out IPAddress address))
+                {
+                    address = (await Dns.GetHostAddressesAsync(domain)).FirstOrDefault();
+                    if (address == null)
+                        throw new Exception("Host not found");
+                }
+                socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
+                endpoint = new IPEndPoint(address, Address.Port);
+            }
+            else if (Address.Scheme == "unix")
+            {
+                var path = Address.AbsoluteUri.Remove(0, "unix:".Length);
+                if (!path.StartsWith('/'))
+                    path = "/" + path;
+                while (path.Length >= 2 && (path[0] != '/' || path[1] == '/'))
+                {
+                    path = path.Remove(0, 1);
+                }
+                if (path.Length < 2)
+                    throw new FormatException("Invalid unix url");
+                socket = new Socket(AddressFamily.Unix, SocketType.Stream, ProtocolType.IP);
+                endpoint = new UnixEndPoint(path);
+            }
+            else
+                throw new NotSupportedException($"Protocol {Address.Scheme} for clightning not supported");
+
+            await socket.ConnectAsync(endpoint);
+            return socket;
+        }
+
+        public async Task<BitcoinAddress> NewAddressAsync()
+        {
+            var obj = await SendCommandAsync<JObject>("newaddr");
+            return BitcoinAddress.Create(obj.Property("address").Value.Value<string>(), Network);
+        }
+
+        async Task<LightningInvoice> ILightningInvoiceClient.GetInvoice(string invoiceId, CancellationToken cancellation)
+        {
+            var invoices = await SendCommandAsync<CLightningInvoice[]>("listinvoices", new[] { invoiceId }, false, true, cancellation);
+            if (invoices.Length == 0)
+                return null;
+            return ToLightningInvoice(invoices[0]);
+        }
+
+        static NBitcoin.DataEncoders.DataEncoder InvoiceIdEncoder = NBitcoin.DataEncoders.Encoders.Base58;
+        async Task<LightningInvoice> ILightningInvoiceClient.CreateInvoice(LightMoney amount, TimeSpan expiry, CancellationToken cancellation)
+        {
+            var id = InvoiceIdEncoder.EncodeData(RandomUtils.GetBytes(20));
+            var invoice = await SendCommandAsync<CLightningInvoice>("invoice", new object[] { amount.MilliSatoshi, id, "" }, cancellation: cancellation);
+            invoice.Label = id;
+            invoice.MilliSatoshi = amount;
+            invoice.Status = "unpaid";
+            return ToLightningInvoice(invoice);
+        }
+
+        private static LightningInvoice ToLightningInvoice(CLightningInvoice invoice)
+        {
+            return new LightningInvoice()
+            {
+                Id = invoice.Label,
+                Amount = invoice.MilliSatoshi,
+                BOLT11 = invoice.BOLT11,
+                Status = invoice.Status,
+                PaidAt = invoice.PaidAt
+            };
+        }
+
+        Task<ILightningListenInvoiceSession> ILightningInvoiceClient.Listen(CancellationToken cancellation)
+        {
+            return Task.FromResult<ILightningListenInvoiceSession>(this);
+        }
+        long lastInvoiceIndex = 99999999999;
+        async Task<LightningInvoice> ILightningListenInvoiceSession.WaitInvoice(CancellationToken cancellation)
+        {
+            var invoice = await SendCommandAsync<CLightningInvoice>("waitanyinvoice", new object[] { lastInvoiceIndex }, cancellation: cancellation);
+            lastInvoiceIndex = invoice.PayIndex.Value;
+            return ToLightningInvoice(invoice);
+        }
+
+        async Task<LightningNodeInformation> ILightningInvoiceClient.GetInfo(CancellationToken cancellation)
+        {
+            var info = await GetInfoAsync(cancellation);
+            var address = info.Address.Select(a => a.Address).FirstOrDefault();
+            var port = info.Port;
+            return new LightningNodeInformation()
+            {
+                NodeId = info.Id,
+                P2PPort = port,
+                Address = address,
+                BlockHeight = info.BlockHeight
+            };
+        }
+
+        void IDisposable.Dispose()
+        {
+
+        }
+    }
+}

BTCPayServer/Payments/Lightning/CLightning/NodeInfo.cs

@@ -3,7 +3,7 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Threading.Tasks;
 
-namespace BTCPayServer.Payments.Lightning.CLightning.RPC
+namespace BTCPayServer.Payments.Lightning.CLightning
 {
     public class NodeInfo
     {
@@ -20,5 +20,10 @@ namespace BTCPayServer.Payments.Lightning.CLightning.RPC
         public string NodeId { get; private set; }
         public string Host { get; private set; }
         public int Port { get; private set; }
+
+        public override string ToString()
+        {
+            return $"{NodeId}@{Host}:{Port}";
+        }
     }
 }

BTCPayServer/Payments/Lightning/CLightning/PeerInfo.cs

@@ -5,7 +5,7 @@ using System.Threading.Tasks;
 using NBitcoin;
 using Newtonsoft.Json;
 
-namespace BTCPayServer.Payments.Lightning.CLightning.RPC
+namespace BTCPayServer.Payments.Lightning.CLightning
 {
     public class ChannelInfo
     {

BTCPayServer/Payments/Lightning/CLightning/RPC/CLightningRPCClient.cs

@@ -1,118 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Net;
-using System.Net.Sockets;
-using System.Text;
-using System.Threading.Tasks;
-using NBitcoin;
-using NBitcoin.RPC;
-using Newtonsoft.Json;
-using Newtonsoft.Json.Linq;
-
-namespace BTCPayServer.Payments.Lightning.CLightning.RPC
-{
-    public class CLightningRPCClient
-    {
-        public Network Network { get; private set; }
-        public Uri Address { get; private set; }
-
-        public CLightningRPCClient(Uri address, Network network)
-        {
-            if (address == null)
-                throw new ArgumentNullException(nameof(address));
-            if (network == null)
-                throw new ArgumentNullException(nameof(network));
-            Address = address;
-            Network = network;
-        }
-
-        public Task<GetInfoResponse> GetInfoAsync()
-        {
-            return SendCommandAsync<GetInfoResponse>("getinfo");
-        }
-
-        public Task SendAsync(string bolt11)
-        {
-            return SendCommandAsync<object>("pay", new[] { bolt11 }, true);
-        }
-
-        public async Task<PeerInfo[]> ListPeersAsync()
-        {
-            var peers = await SendCommandAsync<PeerInfo[]>("listpeers", isArray: true);
-            foreach(var peer in peers)
-            {
-                peer.Channels = peer.Channels ?? Array.Empty<ChannelInfo>();
-            }
-            return peers;
-        }
-
-        public Task FundChannelAsync(NodeInfo nodeInfo, Money money)
-        {
-            return SendCommandAsync<object>("fundchannel", new object[] { nodeInfo.NodeId, money.Satoshi }, true);
-        }
-
-        public Task ConnectAsync(NodeInfo nodeInfo)
-        {
-            return SendCommandAsync<object>("connect", new[] { $"{nodeInfo.NodeId}@{nodeInfo.Host}:{nodeInfo.Port}" }, true);
-        }
-
-        static Encoding UTF8 = new UTF8Encoding(false);
-        private async Task<T> SendCommandAsync<T>(string command, object[] parameters = null, bool noReturn = false, bool isArray = false)
-        {
-            parameters = parameters ?? Array.Empty<string>();
-            var domain = Address.DnsSafeHost;
-            if (!IPAddress.TryParse(domain, out IPAddress address))
-            {
-                address = (await Dns.GetHostAddressesAsync(domain)).FirstOrDefault();
-                if (address == null)
-                    throw new Exception("Host not found");
-            }
-            Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
-            await socket.ConnectAsync(new IPEndPoint(address, Address.Port));
-            using (var networkStream = new NetworkStream(socket))
-            {
-                using (var textWriter = new StreamWriter(networkStream, UTF8, 1024 * 10, true))
-                {
-                    using (var jsonWriter = new JsonTextWriter(textWriter))
-                    {
-                        var req = new JObject();
-                        req.Add("id", 0);
-                        req.Add("method", command);
-                        req.Add("params", new JArray(parameters));
-                        await req.WriteToAsync(jsonWriter);
-                        await jsonWriter.FlushAsync();
-                    }
-                    await textWriter.FlushAsync();
-                }
-                await networkStream.FlushAsync();
-                using (var textReader = new StreamReader(networkStream, UTF8, false, 1024 * 10, true))
-                {
-                    using (var jsonReader = new JsonTextReader(textReader))
-                    {
-                        var result = await JObject.LoadAsync(jsonReader);
-                        var error = result.Property("error");
-                        if(error != null)
-                        {
-                            throw new Exception(error.Value.ToString());
-                        }
-                        if (noReturn)
-                            return default(T);
-                        if (isArray)
-                        {
-                            return result["result"].Children().First().Children().First().ToObject<T>();
-                        }
-                        return result["result"].ToObject<T>();
-                    }
-                }
-            }
-        }
-
-        public async Task<BitcoinAddress> NewAddressAsync()
-        {
-            var obj = await SendCommandAsync<JObject>("newaddr");
-            return BitcoinAddress.Create(obj.Property("address").Value.Value<string>(), Network);
-        }
-    }
-}

BTCPayServer/Payments/Lightning/CLightning/UnixEndPoint.cs

@@ -0,0 +1,140 @@
+//
+// Mono.Unix.UnixEndPoint: EndPoint derived class for AF_UNIX family sockets.
+//
+// Authors:
+//	Gonzalo Paniagua Javier (gonzalo@ximian.com)
+//
+// (C) 2003 Ximian, Inc (http://www.ximian.com)
+//
+
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+using System;
+using System.Net;
+using System.Net.Sockets;
+using System.Text;
+
+namespace Mono.Unix
+{
+    [Serializable]
+    public class UnixEndPoint : EndPoint
+    {
+        string filename;
+
+        public UnixEndPoint(string filename)
+        {
+            if (filename == null)
+                throw new ArgumentNullException("filename");
+
+            if (filename.Length == 0)
+                throw new ArgumentException("Cannot be empty.", "filename");
+            this.filename = filename;
+        }
+
+        public string Filename
+        {
+            get
+            {
+                return (filename);
+            }
+            set
+            {
+                filename = value;
+            }
+        }
+
+        public override AddressFamily AddressFamily
+        {
+            get { return AddressFamily.Unix; }
+        }
+
+        public override EndPoint Create(SocketAddress socketAddress)
+        {
+            /*
+			 * Should also check this
+			 *
+			int addr = (int) AddressFamily.Unix;
+			if (socketAddress [0] != (addr & 0xFF))
+				throw new ArgumentException ("socketAddress is not a unix socket address.");
+
+			if (socketAddress [1] != ((addr & 0xFF00) >> 8))
+				throw new ArgumentException ("socketAddress is not a unix socket address.");
+			 */
+
+            if (socketAddress.Size == 2)
+            {
+                // Empty filename.
+                // Probably from RemoteEndPoint which on linux does not return the file name.
+                UnixEndPoint uep = new UnixEndPoint("a");
+                uep.filename = "";
+                return uep;
+            }
+            int size = socketAddress.Size - 2;
+            byte[] bytes = new byte[size];
+            for (int i = 0; i < bytes.Length; i++)
+            {
+                bytes[i] = socketAddress[i + 2];
+                // There may be junk after the null terminator, so ignore it all.
+                if (bytes[i] == 0)
+                {
+                    size = i;
+                    break;
+                }
+            }
+
+            string name = Encoding.Default.GetString(bytes, 0, size);
+            return new UnixEndPoint(name);
+        }
+
+        public override SocketAddress Serialize()
+        {
+            byte[] bytes = Encoding.Default.GetBytes(filename);
+            SocketAddress sa = new SocketAddress(AddressFamily, 2 + bytes.Length + 1);
+            // sa [0] -> family low byte, sa [1] -> family high byte
+            for (int i = 0; i < bytes.Length; i++)
+                sa[2 + i] = bytes[i];
+
+            //NULL suffix for non-abstract path
+            sa[2 + bytes.Length] = 0;
+
+            return sa;
+        }
+
+        public override string ToString()
+        {
+            return (filename);
+        }
+
+        public override int GetHashCode()
+        {
+            return filename.GetHashCode(StringComparison.Ordinal);
+        }
+
+        public override bool Equals(object o)
+        {
+            UnixEndPoint other = o as UnixEndPoint;
+            if (other == null)
+                return false;
+
+            return (other.filename == filename);
+        }
+    }
+}

BTCPayServer/Payments/Lightning/Charge/ChargeClient.cs

@@ -13,9 +13,9 @@ using NBitcoin;
 using NBXplorer;
 using Newtonsoft.Json;
 
-namespace BTCPayServer.Payments.Lightning.CLightning
+namespace BTCPayServer.Payments.Lightning.Charge
 {
-    public class ChargeClient
+    public class ChargeClient : ILightningInvoiceClient
     {
         private Uri _Uri;
         public Uri Uri
@@ -126,5 +126,50 @@ namespace BTCPayServer.Payments.Lightning.CLightning
                 uri += "/";
             return new Uri(uri + partialUrl);
         }
+
+        async Task<LightningInvoice> ILightningInvoiceClient.GetInvoice(string invoiceId, CancellationToken cancellation)
+        {
+            var invoice = await GetInvoice(invoiceId, cancellation);
+            if (invoice == null)
+                return null;
+            return ChargeClient.ToLightningInvoice(invoice);
+        }
+
+        async Task<ILightningListenInvoiceSession> ILightningInvoiceClient.Listen(CancellationToken cancellation)
+        {
+            return await Listen(cancellation);
+        }
+
+        internal static LightningInvoice ToLightningInvoice(ChargeInvoice invoice)
+        {
+            return new LightningInvoice()
+            {
+                Id = invoice.Id ?? invoice.Label,
+                Amount = invoice.MilliSatoshi,
+                BOLT11 = invoice.PaymentRequest,
+                PaidAt = invoice.PaidAt,
+                Status = invoice.Status
+            };
+        }
+
+        async Task<LightningInvoice> ILightningInvoiceClient.CreateInvoice(LightMoney amount, TimeSpan expiry, CancellationToken cancellation)
+        {
+            var invoice = await CreateInvoiceAsync(new CreateInvoiceRequest() { Amont = amount, Expiry = expiry });
+            return new LightningInvoice() { Id = invoice.Id, Amount = amount, BOLT11 = invoice.PayReq, Status = "unpaid" };
+        }
+
+        async Task<LightningNodeInformation> ILightningInvoiceClient.GetInfo(CancellationToken cancellation)
+        {
+            var info = await GetInfoAsync(cancellation);
+            var address = info.Address.Select(a => a.Address).FirstOrDefault();
+            var port = info.Port;
+            return new LightningNodeInformation()
+            {
+                NodeId = info.Id,
+                P2PPort = port,
+                Address = address,
+                BlockHeight = info.BlockHeight
+            };
+        }
     }
 }

BTCPayServer/Payments/Lightning/Charge/ChargeSession.cs

@@ -8,7 +8,7 @@ using System.Threading.Tasks;
 using NBXplorer;
 using Newtonsoft.Json;
 
-namespace BTCPayServer.Payments.Lightning.CLightning
+namespace BTCPayServer.Payments.Lightning.Charge
 {
     public class ChargeInvoice
     {
@@ -27,8 +27,9 @@ namespace BTCPayServer.Payments.Lightning.CLightning
 
         [JsonProperty("payreq")]
         public string PaymentRequest { get; set; }
+        public string Label { get; set; }
     }
-    public class ChargeSession : IDisposable
+    public class ChargeSession : ILightningListenInvoiceSession
     {
         private ClientWebSocket socket;
 
@@ -42,7 +43,7 @@ namespace BTCPayServer.Payments.Lightning.CLightning
         }
 
         ArraySegment<byte> _Buffer;
-        public async Task<ChargeInvoice> NextEvent(CancellationToken cancellation = default(CancellationToken))
+        public async Task<ChargeInvoice> WaitInvoice(CancellationToken cancellation = default(CancellationToken))
         {
             var buffer = _Buffer;
             var array = _Buffer.Array;
@@ -120,5 +121,15 @@ namespace BTCPayServer.Payments.Lightning.CLightning
         {
             await this.socket.CloseSocket();
         }
+
+        async Task<LightningInvoice> ILightningListenInvoiceSession.WaitInvoice(CancellationToken token)
+        {
+            return ChargeClient.ToLightningInvoice(await WaitInvoice(token));
+        }
+
+        void IDisposable.Dispose()
+        {
+            Dispose();
+        }
     }
 }

BTCPayServer/Payments/Lightning/Charge/CreateInvoiceRequest.cs

@@ -3,7 +3,7 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Threading.Tasks;
 
-namespace BTCPayServer.Payments.Lightning.CLightning
+namespace BTCPayServer.Payments.Lightning.Charge
 {
     public class CreateInvoiceRequest
     {

BTCPayServer/Payments/Lightning/Charge/CreateInvoiceResponse.cs

@@ -3,7 +3,7 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Threading.Tasks;
 
-namespace BTCPayServer.Payments.Lightning.CLightning
+namespace BTCPayServer.Payments.Lightning.Charge
 {
     public class CreateInvoiceResponse
     {

BTCPayServer/Payments/Lightning/Charge/GetInfoResponse.cs

@@ -3,7 +3,7 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Threading.Tasks;
 
-namespace BTCPayServer.Payments.Lightning.CLightning
+namespace BTCPayServer.Payments.Lightning.Charge
 {
     //[{"type":"ipv4","address":"52.166.90.122","port":9735}]
     public class GetInfoResponse

BTCPayServer/Payments/Lightning/ILightningInvoiceClient.cs

@@ -0,0 +1,41 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+using BTCPayServer.Payments.Lightning.Charge;
+
+namespace BTCPayServer.Payments.Lightning
+{
+    public class LightningInvoice
+    {
+        public string Id { get; set; }
+        public string Status { get; set; }
+        public string BOLT11 { get; set; }
+        public DateTimeOffset? PaidAt
+        {
+            get; set;
+        }
+        public LightMoney Amount { get; set; }
+    }
+
+    public class LightningNodeInformation
+    {
+        public string NodeId { get; set; }
+        public string Address { get; internal set; }
+        public int P2PPort { get; internal set; }
+        public int BlockHeight { get; set; }
+    }
+    public interface ILightningInvoiceClient
+    {
+        Task<LightningInvoice> GetInvoice(string invoiceId, CancellationToken cancellation = default(CancellationToken));
+        Task<LightningInvoice> CreateInvoice(LightMoney amount, TimeSpan expiry, CancellationToken cancellation = default(CancellationToken));
+        Task<ILightningListenInvoiceSession> Listen(CancellationToken cancellation = default(CancellationToken));
+        Task<LightningNodeInformation> GetInfo(CancellationToken cancellation = default(CancellationToken));
+    }
+
+    public interface ILightningListenInvoiceSession : IDisposable
+    {
+        Task<LightningInvoice> WaitInvoice(CancellationToken cancellation);
+    }
+}

BTCPayServer/Payments/Lightning/LightningClientFactory.cs

@@ -0,0 +1,27 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using BTCPayServer.Payments.Lightning.Charge;
+using BTCPayServer.Payments.Lightning.CLightning;
+
+namespace BTCPayServer.Payments.Lightning
+{
+    public class LightningClientFactory
+    {
+        public ILightningInvoiceClient CreateClient(LightningSupportedPaymentMethod supportedPaymentMethod, BTCPayNetwork network)
+        {
+            var uri = supportedPaymentMethod.GetLightningUrl();
+            if (uri.ConnectionType == LightningConnectionType.Charge)
+            {
+                return new ChargeClient(uri.ToUri(true), network.NBitcoinNetwork);
+            }
+            else if (uri.ConnectionType == LightningConnectionType.CLightning)
+            {
+                return new CLightningRPCClient(uri.ToUri(false), network.NBitcoinNetwork);
+            }
+            else
+                throw new NotSupportedException($"Unsupported connection string for lightning server ({uri.ConnectionType})");
+        }
+    }
+}

BTCPayServer/Payments/Lightning/LightningConnectionString.cs

@@ -0,0 +1,110 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace BTCPayServer.Payments.Lightning
+{
+    public enum LightningConnectionType
+    {
+        Charge,
+        CLightning
+    }
+    public class LightningConnectionString
+    {
+        public static bool TryParse(string str, out LightningConnectionString connectionString)
+        {
+            return TryParse(str, out connectionString, out var error);
+        }
+        public static bool TryParse(string str, out LightningConnectionString connectionString, out string error)
+        {
+            if (str == null)
+                throw new ArgumentNullException(nameof(str));
+            if (str.StartsWith('/'))
+                str = "unix:" + str;
+            var result = new LightningConnectionString();
+            connectionString = null;
+            error = null;
+
+            Uri uri;
+            if (!System.Uri.TryCreate(str, UriKind.Absolute, out uri))
+            {
+                error = "Invalid URL";
+                return false;
+            }
+
+            var supportedDomains = new string[] { "unix", "tcp", "http", "https" };
+            if (!supportedDomains.Contains(uri.Scheme))
+            {
+                var protocols = String.Join(",", supportedDomains);
+                error = $"The url support the following protocols {protocols}";
+                return false;
+            }
+
+            if (uri.Scheme == "unix")
+            {
+                str = uri.AbsoluteUri.Substring("unix:".Length);
+                while (str.Length >= 1 && str[0] == '/')
+                {
+                    str = str.Substring(1);
+                }
+                uri = new Uri("unix://" + str, UriKind.Absolute);
+            }
+
+            if (uri.Scheme == "http" || uri.Scheme == "https")
+            {
+                var parts = uri.UserInfo.Split(':');
+                if (string.IsNullOrEmpty(uri.UserInfo) || parts.Length != 2)
+                {
+                    error = "The url is missing user and password";
+                    return false;
+                }
+                result.Username = parts[0];
+                result.Password = parts[1];
+            }
+            else if (!string.IsNullOrEmpty(uri.UserInfo))
+            {
+                error = "The url should not have user information";
+                return false;
+            }
+            result.BaseUri = new UriBuilder(uri) { UserName = "", Password = "" }.Uri;
+            connectionString = result;
+            return true;
+        }
+
+        public LightningConnectionString()
+        {
+
+        }
+
+        public string Username { get; set; }
+        public string Password { get; set; }
+        public Uri BaseUri { get; set; }
+
+        public LightningConnectionType ConnectionType
+        {
+            get
+            {
+                return BaseUri.Scheme == "http" || BaseUri.Scheme == "https" ? LightningConnectionType.Charge 
+                    : LightningConnectionType.CLightning;
+            }
+        }
+
+        public Uri ToUri(bool withCredentials)
+        {
+            if (withCredentials)
+            {
+                return new UriBuilder(BaseUri) { UserName = Username ?? "", Password = Password ?? "" }.Uri;
+            }
+            else
+            {
+                return BaseUri;
+            }
+        }
+
+        public override string ToString()
+        {
+            return ToUri(true).AbsoluteUri;
+        }
+    }
+}

BTCPayServer/Payments/Lightning/LightningLikePaymentHandler.cs

@@ -6,6 +6,7 @@ using System.Net.Sockets;
 using System.Threading;
 using System.Threading.Tasks;
 using BTCPayServer.HostedServices;
+using BTCPayServer.Payments.Lightning.Charge;
 using BTCPayServer.Payments.Lightning.CLightning;
 using BTCPayServer.Services.Invoices;
 
@@ -14,87 +15,94 @@ namespace BTCPayServer.Payments.Lightning
     public class LightningLikePaymentHandler : PaymentMethodHandlerBase<LightningSupportedPaymentMethod>
     {
         NBXplorerDashboard _Dashboard;
-        public LightningLikePaymentHandler(NBXplorerDashboard dashboard)
+        LightningClientFactory _LightningClientFactory;
+        public LightningLikePaymentHandler(
+            LightningClientFactory lightningClientFactory,
+            NBXplorerDashboard dashboard)
         {
+            _LightningClientFactory = lightningClientFactory;
             _Dashboard = dashboard;
         }
         public override async Task<IPaymentMethodDetails> CreatePaymentMethodDetails(LightningSupportedPaymentMethod supportedPaymentMethod, PaymentMethod paymentMethod, BTCPayNetwork network)
         {
+            var test = Test(supportedPaymentMethod, network);
             var invoice = paymentMethod.ParentEntity;
             var due = Extensions.RoundUp(invoice.ProductInformation.Price / paymentMethod.Rate, 8);
-            var client = GetClient(supportedPaymentMethod, network);
+            var client = _LightningClientFactory.CreateClient(supportedPaymentMethod, network);
             var expiry = invoice.ExpirationTime - DateTimeOffset.UtcNow;
-            var lightningInvoice = await client.CreateInvoiceAsync(new CreateInvoiceRequest()
+            if (expiry < TimeSpan.Zero)
+                expiry = TimeSpan.FromSeconds(1);
+
+            LightningInvoice lightningInvoice = null;
+            try
             {
-                Amont = new LightMoney(due, LightMoneyUnit.BTC),
-                Expiry = expiry < TimeSpan.Zero ? TimeSpan.FromSeconds(1) : expiry
-            });
+                lightningInvoice = await client.CreateInvoice(new LightMoney(due, LightMoneyUnit.BTC), expiry);
+            }
+            catch(Exception ex)
+            {
+                throw new PaymentMethodUnavailableException($"Impossible to create lightning invoice ({ex.Message})", ex);
+            }
+            var nodeInfo = await test;
             return new LightningLikePaymentMethodDetails()
             {
-                BOLT11 = lightningInvoice.PayReq,
-                InvoiceId = lightningInvoice.Id
+                BOLT11 = lightningInvoice.BOLT11,
+                InvoiceId = lightningInvoice.Id,
+                NodeInfo = nodeInfo.ToString()
             };
         }
 
-        public async override Task<bool> IsAvailable(LightningSupportedPaymentMethod supportedPaymentMethod, BTCPayNetwork network)
-        {
-            try
-            {
-                await Test(supportedPaymentMethod, network);
-                return true;
-            }
-            catch { return false; }
-        }
+        /// <summary>
+        /// Used for testing
+        /// </summary>
+        public bool SkipP2PTest { get; set; }
 
-        public async Task Test(LightningSupportedPaymentMethod supportedPaymentMethod, BTCPayNetwork network)
+        public async Task<NodeInfo> Test(LightningSupportedPaymentMethod supportedPaymentMethod, BTCPayNetwork network)
         {
             if (!_Dashboard.IsFullySynched(network.CryptoCode, out var summary))
-                throw new Exception($"Full node not available");
+                throw new PaymentMethodUnavailableException($"Full node not available");
 
-            
             var cts = new CancellationTokenSource(5000);
-            var client = GetClient(supportedPaymentMethod, network);
-            GetInfoResponse info = null;
+            var client = _LightningClientFactory.CreateClient(supportedPaymentMethod, network);
+            LightningNodeInformation info = null;
             try
             {
-
-                info = await client.GetInfoAsync(cts.Token);
+                info = await client.GetInfo(cts.Token);
+            }
+            catch (OperationCanceledException) when (cts.IsCancellationRequested)
+            {
+                throw new PaymentMethodUnavailableException($"The lightning node did not replied in a timely maner");
             }
             catch (Exception ex)
             {
-                throw new Exception($"Error while connecting to the lightning charge {client.Uri} ({ex.Message})");
+                throw new PaymentMethodUnavailableException($"Error while connecting to the API ({ex.Message})");
             }
-            var address = info.Address.Select(a=>a.Address).FirstOrDefault();
-            var port = info.Port;
-            address = address ?? client.Uri.DnsSafeHost;
 
-            if (info.Network != network.CLightningNetworkName)
+            if (info.Address == null)
             {
-                throw new Exception($"Lightning node network {info.Network}, but expected is {network.CLightningNetworkName}");
+                throw new PaymentMethodUnavailableException($"No lightning node public address has been configured");
             }
 
             var blocksGap = Math.Abs(info.BlockHeight - summary.Status.ChainHeight);
             if (blocksGap > 10)
             {
-                throw new Exception($"The lightning is not synched ({blocksGap} blocks)");
+                throw new PaymentMethodUnavailableException($"The lightning is not synched ({blocksGap} blocks)");
             }
 
             try
             {
-                await TestConnection(address, port, cts.Token);
+                if (!SkipP2PTest)
+                {
+                    await TestConnection(info.Address, info.P2PPort, cts.Token);
+                }
             }
             catch (Exception ex)
             {
-                throw new Exception($"Error while connecting to the lightning node via {address}:{port} ({ex.Message})");
+                throw new PaymentMethodUnavailableException($"Error while connecting to the lightning node via {info.Address}:{info.P2PPort} ({ex.Message})");
             }
+            return new NodeInfo(info.NodeId, info.Address, info.P2PPort);
         }
 
-        private static ChargeClient GetClient(LightningSupportedPaymentMethod supportedPaymentMethod, BTCPayNetwork network)
-        {
-            return new ChargeClient(supportedPaymentMethod.GetLightningChargeUrl(true), network.NBitcoinNetwork);
-        }
-
-        private async Task<bool> TestConnection(string addressStr, int port, CancellationToken cancellation)
+        private async Task TestConnection(string addressStr, int port, CancellationToken cancellation)
         {
             IPAddress address = null;
             try
@@ -103,25 +111,16 @@ namespace BTCPayServer.Payments.Lightning
             }
             catch
             {
-                try
-                {
-                    address = (await Dns.GetHostAddressesAsync(addressStr)).FirstOrDefault();
-                }
-                catch { }
+                address = (await Dns.GetHostAddressesAsync(addressStr)).FirstOrDefault();
             }
 
             if (address == null)
-                throw new Exception($"DNS did not resolved {addressStr}");
+                throw new PaymentMethodUnavailableException($"DNS did not resolved {addressStr}");
 
             using (var tcp = new Socket(address.AddressFamily, SocketType.Stream, ProtocolType.Tcp))
             {
-                try
-                {
-                    await WithTimeout(tcp.ConnectAsync(new IPEndPoint(address, port)), cancellation);
-                }
-                catch { return false; }
+                await WithTimeout(tcp.ConnectAsync(new IPEndPoint(address, port)), cancellation);
             }
-            return true;
         }
 
         static Task WithTimeout(Task task, CancellationToken token)

BTCPayServer/Payments/Lightning/LightningLikePaymentMethodDetails.cs

@@ -9,6 +9,7 @@ namespace BTCPayServer.Payments.Lightning
     {
         public string BOLT11 { get; set; }
         public string InvoiceId { get; set; }
+        public string NodeInfo { get; set; }
 
         public string GetPaymentDestination()
         {

BTCPayServer/Payments/Lightning/LightningListener.cs

@@ -6,14 +6,13 @@ using System.Threading;
 using System.Threading.Tasks;
 using BTCPayServer.Events;
 using BTCPayServer.Logging;
-using BTCPayServer.Payments.Lightning.CLightning;
 using BTCPayServer.Services.Invoices;
 using Microsoft.Extensions.Hosting;
 using NBXplorer;
 
 namespace BTCPayServer.Payments.Lightning
 {
-    public class ChargeListener : IHostedService
+    public class LightningListener : IHostedService
     {
         class ListenedInvoice
         {
@@ -28,13 +27,16 @@ namespace BTCPayServer.Payments.Lightning
         EventAggregator _Aggregator;
         InvoiceRepository _InvoiceRepository;
         BTCPayNetworkProvider _NetworkProvider;
-        public ChargeListener(EventAggregator aggregator,
+        LightningClientFactory _LightningClientFactory;
+        public LightningListener(EventAggregator aggregator,
                               InvoiceRepository invoiceRepository,
+                              LightningClientFactory lightningClientFactory,
                               BTCPayNetworkProvider networkProvider)
         {
             _Aggregator = aggregator;
             _InvoiceRepository = invoiceRepository;
             _NetworkProvider = networkProvider;
+            _LightningClientFactory = lightningClientFactory;
         }
 
         CompositeDisposable leases = new CompositeDisposable();
@@ -77,7 +79,7 @@ namespace BTCPayServer.Payments.Lightning
 
                 var listenedInvoice = new ListenedInvoice()
                 {
-                    Uri = lightningSupportedMethod.GetLightningChargeUrl(false).AbsoluteUri,
+                    Uri = lightningSupportedMethod.GetLightningUrl().BaseUri.AbsoluteUri,
                     PaymentMethodDetails = lightningMethod,
                     SupportedPaymentMethod = lightningSupportedMethod,
                     PaymentMethod = paymentMethod,
@@ -87,7 +89,7 @@ namespace BTCPayServer.Payments.Lightning
 
                 if (poll)
                 {
-                    var charge = GetChargeClient(lightningSupportedMethod, network);
+                    var charge = _LightningClientFactory.CreateClient(lightningSupportedMethod, network);
                     var chargeInvoice = await charge.GetInvoice(lightningMethod.InvoiceId);
                     if (chargeInvoice == null)
                         continue;
@@ -123,18 +125,17 @@ namespace BTCPayServer.Payments.Lightning
         {
             try
             {
-                Logs.PayServer.LogInformation($"{supportedPaymentMethod.CryptoCode} (Lightning): Start listening {supportedPaymentMethod.GetLightningChargeUrl(false)}");
-                var charge = GetChargeClient(supportedPaymentMethod, network);
+                Logs.PayServer.LogInformation($"{supportedPaymentMethod.CryptoCode} (Lightning): Start listening {supportedPaymentMethod.GetLightningUrl().BaseUri}");
+                var charge = _LightningClientFactory.CreateClient(supportedPaymentMethod, network);
                 var session = await charge.Listen(_Cts.Token);
                 while (true)
                 {
-                    var notification = await session.NextEvent(_Cts.Token);
+                    var notification = await session.WaitInvoice(_Cts.Token);
                     ListenedInvoice listenedInvoice = GetListenedInvoice(notification.Id);
                     if (listenedInvoice == null)
                         continue;
-
                     if (notification.Id == listenedInvoice.PaymentMethodDetails.InvoiceId &&
-                       notification.PaymentRequest == listenedInvoice.PaymentMethodDetails.BOLT11)
+                       notification.BOLT11 == listenedInvoice.PaymentMethodDetails.BOLT11)
                     {
                         if (notification.Status == "paid" && notification.PaidAt.HasValue)
                         {
@@ -155,28 +156,23 @@ namespace BTCPayServer.Payments.Lightning
             }
             catch (Exception ex)
             {
-                Logs.PayServer.LogError(ex, $"{supportedPaymentMethod.CryptoCode} (Lightning): Error while contacting {supportedPaymentMethod.GetLightningChargeUrl(false)}");
-                DoneListening(supportedPaymentMethod.GetLightningChargeUrl(false));
+                Logs.PayServer.LogError(ex, $"{supportedPaymentMethod.CryptoCode} (Lightning): Error while contacting {supportedPaymentMethod.GetLightningUrl().BaseUri}");
+                DoneListening(supportedPaymentMethod.GetLightningUrl());
             }
-            Logs.PayServer.LogInformation($"{supportedPaymentMethod.CryptoCode} (Lightning): Stop listening {supportedPaymentMethod.GetLightningChargeUrl(false)}");
+            Logs.PayServer.LogInformation($"{supportedPaymentMethod.CryptoCode} (Lightning): Stop listening {supportedPaymentMethod.GetLightningUrl().BaseUri}");
         }
 
-        private async Task AddPayment(BTCPayNetwork network, ChargeInvoice notification, ListenedInvoice listenedInvoice)
+        private async Task AddPayment(BTCPayNetwork network, LightningInvoice notification, ListenedInvoice listenedInvoice)
         {
             var payment = await _InvoiceRepository.AddPayment(listenedInvoice.InvoiceId, notification.PaidAt.Value, new LightningLikePaymentData()
             {
-                BOLT11 = notification.PaymentRequest,
-                Amount = notification.MilliSatoshi
+                BOLT11 = notification.BOLT11,
+                Amount = notification.Amount
             }, network.CryptoCode, accounted: true);
             if(payment != null)
                 _Aggregator.Publish(new InvoiceEvent(listenedInvoice.InvoiceId, 1002, "invoice_receivedPayment"));
         }
 
-        private static ChargeClient GetChargeClient(LightningSupportedPaymentMethod supportedPaymentMethod, BTCPayNetwork network)
-        {
-            return new ChargeClient(supportedPaymentMethod.GetLightningChargeUrl(true), network.NBitcoinNetwork);
-        }
-
         List<Task> _ListeningLightning = new List<Task>();
         MultiValueDictionary<string, ListenedInvoice> _ListenedInvoiceByLightningUrl = new MultiValueDictionary<string, ListenedInvoice>();
         Dictionary<string, ListenedInvoice> _ListenedInvoiceByChargeInvoiceId = new Dictionary<string, ListenedInvoice>();
@@ -207,8 +203,9 @@ namespace BTCPayServer.Payments.Lightning
         /// Stop listening all invoices on this server
         /// </summary>
         /// <param name="uri"></param>
-        private void DoneListening(Uri uri)
+        private void DoneListening(LightningConnectionString connectionString)
         {
+            var uri = connectionString.BaseUri;
             lock (_ListenedInvoiceByChargeInvoiceId)
             {
                 foreach (var listenedInvoice in _ListenedInvoiceByLightningUrl[uri.AbsoluteUri])

BTCPayServer/Payments/Lightning/LightningSupportedPaymentMethod.cs

@@ -8,41 +8,36 @@ namespace BTCPayServer.Payments.Lightning
     public class LightningSupportedPaymentMethod : ISupportedPaymentMethod
     {
         public string CryptoCode { get; set; }
-        [Obsolete("Use Get/SetLightningChargeUrl")]
+        [Obsolete("Use Get/SetLightningUrl")]
         public string LightningChargeUrl { get; set; }
 
-        public Uri GetLightningChargeUrl(bool withCredentials)
+        public LightningConnectionString GetLightningUrl()
         {
 #pragma warning disable CS0618 // Type or member is obsolete
-            UriBuilder uri = new UriBuilder(LightningChargeUrl);
-            if (withCredentials)
+            var fullUri = new UriBuilder(LightningChargeUrl) { UserName = Username, Password = Password }.Uri.AbsoluteUri;
+            if(!LightningConnectionString.TryParse(fullUri, out var connectionString, out var error))
             {
-                uri.UserName = Username;
-                uri.Password = Password;
+                throw new FormatException(error);
             }
+            return connectionString;
 #pragma warning restore CS0618 // Type or member is obsolete
-            return uri.Uri;
         }
 
-        public void SetLightningChargeUrl(Uri uri)
+        public void SetLightningUrl(LightningConnectionString connectionString)
         {
-            if (uri == null)
-                throw new ArgumentNullException(nameof(uri));
-            if (string.IsNullOrEmpty(uri.UserInfo))
-                throw new ArgumentException(paramName: nameof(uri), message: "Uri should have credential information");
-            var splitted = uri.UserInfo.Split(':');
-            if (splitted.Length != 2)
-                throw new ArgumentException(paramName: nameof(uri), message: "Uri should have credential information");
+            if (connectionString == null)
+                throw new ArgumentNullException(nameof(connectionString));
+
 #pragma warning disable CS0618 // Type or member is obsolete
-            Username = splitted[0];
-            Password = splitted[1];
-            LightningChargeUrl = new UriBuilder(uri) { UserName = "", Password = "" }.Uri.AbsoluteUri;
+            Username = connectionString.Username;
+            Password = connectionString.Password;
+            LightningChargeUrl = connectionString.BaseUri.AbsoluteUri;
 #pragma warning restore CS0618 // Type or member is obsolete
         }
 
-        [Obsolete("Use Get/SetLightningChargeUrl")]
+        [Obsolete("Use Get/SetLightningUrl")]
         public string Username { get; set; }
-        [Obsolete("Use Get/SetLightningChargeUrl")]
+        [Obsolete("Use Get/SetLightningUrl")]
         public string Password { get; set; }
         public PaymentMethodId PaymentId => new PaymentMethodId(CryptoCode, PaymentTypes.LightningLike);
     }

BTCPayServer/Payments/PaymentMethodUnavailableException.cs

@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace BTCPayServer.Payments
+{
+    public class PaymentMethodUnavailableException : Exception
+    {
+        public PaymentMethodUnavailableException(string message) : base(message)
+        {
+
+        }
+        public PaymentMethodUnavailableException(string message, Exception inner) : base(message, inner)
+        {
+
+        }
+    }
+}

BTCPayServer/Properties/launchSettings.json

@@ -8,11 +8,12 @@
         "BTCPAY_LTCEXPLORERURL": "http://127.0.0.1:32838/",
         "BTCPAY_BTCEXPLORERURL": "http://127.0.0.1:32838/",
         "ASPNETCORE_ENVIRONMENT": "Development",
-        "BTCPAY_INTERNALLIGHTNINGNODE": "http://api-token:foiewnccewuify@127.0.0.1:54938/",
         "BTCPAY_CHAINS": "btc,ltc",
-        "BTCPAY_POSTGRES": "User ID=postgres;Host=127.0.0.1;Port=39372;Database=btcpayserver"
+        "BTCPAY_BTCLIGHTNING": "http://api-token:foiewnccewuify@127.0.0.1:54938/",
+        "BTCPAY_POSTGRES": "User ID=postgres;Host=127.0.0.1;Port=39372;Database=btcpayserver",
+        "BTCPAY_BUNDLEJSCSS": "false"
       },
-      "applicationUrl": "http://localhost:14142/"
+      "applicationUrl": "http://127.0.0.1:14142/"
     }
   }
 }

BTCPayServer/Services/Apps/AppType.cs

@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace BTCPayServer.Services.Apps
+{
+    public enum AppType
+    {
+        PointOfSale
+    }
+}

BTCPayServer/Services/HardwareWalletService.cs

@@ -8,6 +8,7 @@ using BTCPayServer.Services.Wallets;
 using LedgerWallet;
 using NBitcoin;
 using NBXplorer.DerivationStrategy;
+using Newtonsoft.Json;
 
 namespace BTCPayServer.Services
 {
@@ -76,18 +77,19 @@ namespace BTCPayServer.Services
             return new LedgerTestResult() { Success = true };
         }
 
-        public async Task<GetXPubResult> GetExtPubKey(BTCPayNetwork network)
+        public async Task<GetXPubResult> GetExtPubKey(BTCPayNetwork network, int account)
         {
             if (network == null)
                 throw new ArgumentNullException(nameof(network));
 
-            var pubkey = await GetExtPubKey(_Ledger, network, new KeyPath("49'").Derive(network.CoinType).Derive(0, true), false);
+            var path = new KeyPath("49'").Derive(network.CoinType).Derive(account, true);
+            var pubkey = await GetExtPubKey(_Ledger, network, path, false);
             var derivation = new DerivationStrategyFactory(network.NBitcoinNetwork).CreateDirectDerivationStrategy(pubkey, new DerivationStrategyOptions()
             {
                 P2SH = true,
                 Legacy = false
             });
-            return new GetXPubResult() { ExtPubKey = derivation.ToString() };
+            return new GetXPubResult() { ExtPubKey = derivation.ToString(), KeyPath = path };
         }
 
         private static async Task<BitcoinExtPubKey> GetExtPubKey(LedgerClient ledger, BTCPayNetwork network, KeyPath account, bool onlyChaincode)
@@ -231,5 +233,8 @@ namespace BTCPayServer.Services
     public class GetXPubResult
     {
         public string ExtPubKey { get; set; }
+        [JsonConverter(typeof(NBitcoin.JsonConverters.KeyPathJsonConverter))]
+        public KeyPath KeyPath { get; set; }
+        public int CoinType { get; internal set; }
     }
 }

BTCPayServer/Services/Invoices/InvoiceEntity.cs

@@ -242,7 +242,7 @@ namespace BTCPayServer.Services.Invoices
 #pragma warning disable CS0618
         public List<PaymentEntity> GetPayments()
         {
-            return Payments.ToList();
+            return Payments?.ToList() ?? new List<PaymentEntity>();
         }
         public List<PaymentEntity> GetPayments(string cryptoCode)
         {
@@ -375,7 +375,8 @@ namespace BTCPayServer.Services.Invoices
                         BIP21 = $"{scheme}:{cryptoInfo.Address}?amount={cryptoInfo.Due}",
                     };
                 }
-                if (info.GetId().PaymentType == PaymentTypes.LightningLike)
+                var paymentId = info.GetId();
+                if (paymentId.PaymentType == PaymentTypes.LightningLike)
                 {
                     cryptoInfo.PaymentUrls = new NBitpayClient.InvoicePaymentUrls()
                     {
@@ -383,7 +384,7 @@ namespace BTCPayServer.Services.Invoices
                     };
                 }
 #pragma warning disable CS0618
-                if (info.CryptoCode == "BTC")
+                if (info.CryptoCode == "BTC" && paymentId.PaymentType == PaymentTypes.BTCLike)
                 {
                     dto.Url = cryptoInfo.Url;
                     dto.BTCPrice = cryptoInfo.Price;

BTCPayServer/Services/Invoices/InvoiceRepository.cs

@@ -101,7 +101,7 @@ namespace BTCPayServer.Services.Invoices
             }
         }
 
-        public async Task<InvoiceEntity> CreateInvoiceAsync(string storeId, InvoiceEntity invoice, BTCPayNetworkProvider networkProvider)
+        public async Task<InvoiceEntity> CreateInvoiceAsync(string storeId, InvoiceEntity invoice, IEnumerable<string> creationLogs, BTCPayNetworkProvider networkProvider)
         {
             List<string> textSearch = new List<string>();
             invoice = Clone(invoice, null);
@@ -146,6 +146,17 @@ namespace BTCPayServer.Services.Invoices
                     textSearch.Add(paymentMethod.Calculate().TotalDue.ToString());
                 }
                 context.PendingInvoices.Add(new PendingInvoiceData() { Id = invoice.Id });
+
+                foreach(var log in creationLogs)
+                {
+                    context.InvoiceEvents.Add(new InvoiceEventData()
+                    {
+                        InvoiceDataId = invoice.Id,
+                        Message = log,
+                        Timestamp = invoice.InvoiceTime,
+                        UniqueId = Encoders.Hex.EncodeData(RandomUtils.GetBytes(10))
+                    });
+                }
                 await context.SaveChangesAsync().ConfigureAwait(false);
             }
 

BTCPayServer/Services/LanguageService.cs

@@ -0,0 +1,36 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace BTCPayServer.Services
+{
+    public class Language
+    {
+        public Language(string code, string displayName)
+        {
+            DisplayName = displayName;
+            Code = code;
+        }
+        public string Code { get; set; }
+        public string DisplayName { get; set; }
+    }
+    public class LanguageService
+    {
+        public Language[] GetLanguages()
+        {
+            return new[]
+            {
+                new Language("en-US", "English"),
+                new Language("de-DE", "Deutsch"),
+                new Language("ja-JP", "日本語"),
+                new Language("fr-FR", "Français"),
+                new Language("es-ES", "Spanish"),
+                new Language("pt-BR", "Portuguese (Brazil)"),
+                new Language("nl-NL", "Dutch"),
+                new Language("cs-CZ", "Česky"),
+                new Language("is-IS", "Íslenska"),
+            };
+        }
+    }
+}

BTCPayServer/Services/Rates/CachedDefaultRateProviderFactory.cs

@@ -26,11 +26,14 @@ namespace BTCPayServer.Services.Rates
             if (cache == null)
                 throw new ArgumentNullException(nameof(cache));
             _Cache = cache;
+            // Using same providers because they are both at 15 min actually...
+            _Providers = _LongCacheProviders;
         }
 
         public IRateProvider RateProvider { get; set; }
 
-        public TimeSpan CacheSpan { get; set; } = TimeSpan.FromMinutes(1.0);
+        // We use 15 min because of limits with free version of bitcoinaverage
+        public TimeSpan CacheSpan { get; set; } = TimeSpan.FromMinutes(15.0);
         public TimeSpan LongCacheSpan { get; set; } = TimeSpan.FromMinutes(15.0);
         public IRateProvider GetRateProvider(BTCPayNetwork network, bool longCache)
         {

BTCPayServer/Services/Rates/CoinAverageRateProvider.cs

@@ -41,6 +41,8 @@ namespace BTCPayServer.Services.Rates
 
         private decimal GetRate(Dictionary<string, decimal> rates, string currency)
         {
+            if (currency == "BTC")
+                return 1.0m;
             if (rates.TryGetValue(currency, out decimal result))
                 return result;
             throw new RateUnavailableException(currency);

BTCPayServer/Services/Stores/StoreRepository.cs

@@ -48,14 +48,72 @@ namespace BTCPayServer.Services.Stores
             }
         }
 
+        public class StoreUser
+        {
+            public string Id { get; set; }
+            public string Email { get; set; }
+            public string Role { get; set; }
+        }
+        public async Task<StoreUser[]> GetStoreUsers(string storeId)
+        {
+            if (storeId == null)
+                throw new ArgumentNullException(nameof(storeId));
+            using (var ctx = _ContextFactory.CreateContext())
+            {
+                return await ctx
+                    .UserStore
+                    .Where(u => u.StoreDataId == storeId)
+                    .Select(u => new StoreUser()
+                    {
+                        Id = u.ApplicationUserId,
+                        Email = u.ApplicationUser.Email,
+                        Role = u.Role
+                    }).ToArrayAsync();
+            }
+        }
+
         public async Task<StoreData[]> GetStoresByUserId(string userId)
         {
             using (var ctx = _ContextFactory.CreateContext())
             {
-                return await ctx.UserStore
+                return (await ctx.UserStore
                     .Where(u => u.ApplicationUserId == userId)
-                    .Select(u => u.StoreData)
-                    .ToArrayAsync();
+                    .Select(u => new { u.StoreData, u.Role })
+                    .ToArrayAsync())
+                    .Select(u =>
+                    {
+                        u.StoreData.Role = u.Role;
+                        return u.StoreData;
+                    }).ToArray();
+            }
+        }
+
+        public async Task<bool> AddStoreUser(string storeId, string userId, string role)
+        {
+            using (var ctx = _ContextFactory.CreateContext())
+            {
+                var userStore = new UserStore() { StoreDataId = storeId, ApplicationUserId = userId, Role = role };
+                ctx.UserStore.Add(userStore);
+                try
+                {
+                    await ctx.SaveChangesAsync();
+                    return true;
+                }
+                catch (DbUpdateException)
+                {
+                    return false;
+                }
+            }
+        }
+
+        public async Task RemoveStoreUser(string storeId, string userId)
+        {
+            using (var ctx = _ContextFactory.CreateContext())
+            {
+                var userStore = new UserStore() { StoreDataId = storeId, ApplicationUserId = userId };
+                ctx.UserStore.Add(userStore);
+                ctx.Entry<UserStore>(userStore).State = EntityState.Deleted;
+                await ctx.SaveChangesAsync();
             }
         }
 

BTCPayServer/StorePolicies.cs

@@ -0,0 +1,26 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace BTCPayServer
+{
+    public class StorePolicies
+    {
+        public const string CanAccessStores = "CanAccessStore";
+        public const string OwnStore = "OwnStore";
+    }
+    public class StoreRoles
+    {
+        public const string Owner = "Owner";
+        public const string Guest = "Guest";
+        public static IEnumerable<String> AllRoles
+        {
+            get
+            {
+                yield return Owner;
+                yield return Guest;
+            }
+        }
+    }
+}

BTCPayServer/Views/Apps/CreateApp.cshtml

@@ -0,0 +1,38 @@
+@model CreateAppViewModel
+@{
+    ViewData["Title"] = "Create a new app";
+}
+<section>
+    <div class="container">
+        <div class="row">
+            <div class="col-lg-12 text-center">
+                <h2 class="section-heading">@ViewData["Title"]</h2>
+                <hr class="primary">
+            </div>
+        </div>
+        <div class="row">
+            <div class="col-lg-12">
+                <form asp-action="CreateApp">
+                    <div asp-validation-summary="ModelOnly" class="text-danger"></div>
+                    <div class="form-group">
+                        <label asp-for="Name" class="control-label"></label>*
+                        <input asp-for="Name" class="form-control" />
+                        <span asp-validation-for="Name" class="text-danger"></span>
+                    </div>
+                    <div class="form-group">
+                        <label asp-for="SelectedAppType" class="control-label"></label>*
+                        <select asp-for="SelectedAppType" asp-items="Model.AppTypes" class="form-control"></select>
+                    </div>
+                    <div class="form-group">
+                        <label asp-for="SelectedStore" class="control-label"></label>*
+                        <select asp-for="SelectedStore" asp-items="Model.Stores" class="form-control"></select>
+                    </div>
+                    <div class="form-group">
+                        <input type="submit" value="Create" class="btn btn-default" />
+                    </div>
+                </form>
+                <a asp-action="ListApps">Back to the app list</a>
+            </div>
+        </div>
+    </div>
+</section>

BTCPayServer/Views/Apps/ListApps.cshtml

@@ -0,0 +1,64 @@
+@model ListAppsViewModel
+@{
+    ViewData["Title"] = "Stores";
+}
+
+<section>
+    <div class="container">
+
+        <div class="row">
+            <div class="col-lg-12 text-center">
+                @Html.Partial("_StatusMessage", TempData["TempDataProperty-StatusMessage"])
+            </div>
+        </div>
+
+        <div class="row">
+            <div class="col-lg-12 text-center">
+                <h2 class="section-heading">@ViewData["Title"]</h2>
+                <hr class="primary">
+                <p>Create and manage apps.</p>
+            </div>
+        </div>
+
+        <div class="row">
+            <a asp-action="CreateApp" class="btn btn-success" role="button"><span class="glyphicon glyphicon-plus"></span> Create a new app</a>
+            <table class="table">
+                <thead class="thead-inverse">
+                    <tr>
+                        <th>Store</th>
+                        <th>Name</th>
+                        <th>App type</th>
+                        <th style="text-align:right">Actions</th>
+                    </tr>
+                </thead>
+                <tbody>
+                    @foreach(var app in Model.Apps)
+                    {
+                        <tr>
+                            <td>
+                                @if(app.IsOwner)
+                                {
+                                    <span><a asp-action="UpdateStore" asp-controller="Stores" asp-route-storeId="@app.StoreId">@app.StoreName</a></span>
+                                }
+                                else
+                                {
+                                    <span>@app.StoreName</span>
+                                }
+                            </td>
+                            <td>@app.AppName</td>
+                            <td>@app.AppType</td>
+                            <td style="text-align:right">
+                                @if(app.IsOwner)
+                                {
+                                    <a asp-action="@app.UpdateAction" asp-controller="Apps" asp-route-appId="@app.Id">Settings</a><span> - </span>
+                                }
+                                <a asp-action="@app.ViewAction" asp-controller="Apps" asp-route-appId="@app.Id">View</a><span> - </span>
+                                <a asp-action="DeleteApp" asp-route-appId="@app.Id">Remove</a>
+                            </td>
+                        </tr>
+                    }
+                </tbody>
+            </table>
+        </div>
+    </div>
+</section>

BTCPayServer/Views/Apps/UpdatePointOfSale.cshtml

@@ -0,0 +1,45 @@
+@model UpdatePointOfSaleViewModel
+@{
+    ViewData["Title"] = "Update Point of Sale";
+}
+<section>
+    <div class="container">
+        <div class="row">
+            <div class="col-lg-12 text-center">
+                <h2 class="section-heading">@ViewData["Title"]</h2>
+                <hr class="primary">
+            </div>
+        </div>
+        <div class="row">
+            <div class="col-lg-12 text-center">
+                @Html.Partial("_StatusMessage", TempData["TempDataProperty-StatusMessage"])
+            </div>
+        </div>
+        <div class="row">
+            <div class="col-lg-12">
+                <form method="post">
+                    <div asp-validation-summary="ModelOnly" class="text-danger"></div>
+                    <div class="form-group">
+                        <label asp-for="Title" class="control-label"></label>*
+                        <input asp-for="Title" class="form-control" />
+                        <span asp-validation-for="Title" class="text-danger"></span>
+                    </div>
+                    <div class="form-group">
+                        <label asp-for="Currency" class="control-label"></label>*
+                        <input asp-for="Currency" class="form-control" />
+                        <span asp-validation-for="Currency" class="text-danger"></span>
+                    </div>
+                    <div class="form-group">
+                        <label asp-for="Template" class="control-label"></label>*
+                        <textarea asp-for="Template" rows="20" cols="40" class="form-control"></textarea>
+                        <span asp-validation-for="Template" class="text-danger"></span>
+                    </div>
+                    <div class="form-group">
+                        <input type="submit" class="btn btn-success" />
+                    </div>
+                </form>
+                <a asp-action="ListApps">Back to the app list</a>
+            </div>
+        </div>
+    </div>
+</section>

BTCPayServer/Views/Apps/ViewPointOfSale.cshtml

@@ -0,0 +1,48 @@
+@model ViewPointOfSaleViewModel
+@{
+    ViewData["Title"] = Model.Title;
+    Layout = null;
+}
+
+<!DOCTYPE html>
+<html class="h-100">
+<head>
+    <title>@Model.Title</title>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <meta name="apple-mobile-web-app-capable" content="yes">
+    <link rel="stylesheet" href="~/vendor/bootstrap/css/bootstrap.css" />
+</head>
+<body class="h-100">
+    <div class="container d-flex h-100">
+        <div class="justify-content-center align-self-center text-center mx-auto">
+            <h1 class="mb-4">@Model.Title</h1>
+            <form method="post">
+                <div class="row">
+                    @foreach(var item in Model.Items)
+                    {
+                        <div class="col-sm-4 mb-3">
+                            <h3>@item.Title</h3>
+                            <button type="submit" name="choiceKey" class="btn btn-secondary" value="@item.Id">Buy for @item.Price.Formatted</button>
+                        </div>
+                    }
+                </div>
+            </form>
+            @*<div class="row mt-4">
+                    <div class="col-md-4 offset-md-4 col-sm-6 offset-sm-3">
+                        <h3>Something else</h3>
+                        <form data-buy>
+                            <div class="input-group">
+                                <input class="form-control" type="number" step="0.00001" name="amount" placeholder="undefined (optional)"><div class="input-group-append">
+                                    <button class="btn btn-primary" type="submit">Pay</button>
+                                </div>
+                            </div>
+                        </form>
+                    </div>
+                </div>*@
+        </div>
+    </div>
+    <script src="~/vendor/bootstrap/js/bootstrap.js"></script>
+    <script src="~/vendor/jquery/jquery.js"></script>
+</body>
+</html>

BTCPayServer/Views/Apps/_ViewImports.cshtml

@@ -0,0 +1 @@
+@using BTCPayServer.Models.AppViewModels

BTCPayServer/Views/Apps/_ViewStart.cshtml

@@ -0,0 +1,3 @@
+@{
+    ViewBag.MainTitle = "Manage app";
+}

BTCPayServer/Views/Invoice/Checkout-Body.cshtml

@@ -0,0 +1,570 @@
+@model PaymentModel
+
+<div class="top-header">
+    <div class="header">
+        <div class="header__icon">
+            @if (Model.CustomLogoLink != null)
+            {
+                <img class="header__icon__img" src="@Model.CustomLogoLink" height="40">
+            }
+            else
+            {
+                <img class="header__icon__img" src="~/img/logo-white.png" height="40">
+            }
+        </div>
+    </div>
+    <div class="timer-row">
+        <div class="timer-row__progress-bar" style="width: 0%;"></div>
+        <div class="timer-row__spinner">
+            @Html.Partial("Checkout-Spinner")
+        </div>
+        <div class="timer-row__message">
+            <span v-if="srvModel.status === 'expired' || srvModel.status === 'invalid'">
+                {{$t("Invoice expired")}}
+            </span>
+            <span v-else-if="expiringSoon">
+                {{$t("Invoice expiring soon...")}}
+            </span>
+            <span v-else>
+                {{$t("Awaiting Payment...")}}
+            </span>
+        </div>
+        <div class="timer-row__time-left">@Model.TimeLeft</div>
+    </div>
+</div>
+<div class="order-details">
+    @if (Model.AvailableCryptos.Count > 1)
+    {
+        <div class="currency-selection">
+            <div class="single-item-order__left">
+                <div style="font-weight: 600;">
+                    {{$t("Pay with")}}
+                </div>
+            </div>
+            <div class="single-item-order__right">
+                <div class="payment__currencies">
+                    @foreach (var crypto in Model.AvailableCryptos)
+                    {
+                        <a href="@crypto.Link" onclick="return changeCurrency('@crypto.PaymentMethodId');">
+                            <img style="height:32px; margin-left:5px;" alt="@crypto.PaymentMethodId" src="@crypto.CryptoImage" />
+                        </a>
+                    }
+                </div>
+                <div class="payment__spinner">
+                    @Html.Partial("Checkout-Spinner")
+                </div>
+            </div>
+        </div>
+    }
+    <div class="single-item-order buyerTotalLine">
+        <div class="single-item-order__left">
+            <div class="single-item-order__left__name">
+                {{ srvModel.storeName }}
+            </div>
+            <div class="single-item-order__left__description">
+                {{ srvModel.itemDesc }}
+            </div>
+        </div>
+        <div class="single-item-order__right">
+            <div class="single-item-order__right__btc-price" id="buyerTotalBtcAmount">
+                <span>{{ srvModel.btcDue }} {{ srvModel.cryptoCode }}</span>
+            </div>
+            <div class="single-item-order__right__ex-rate">
+                1 {{ srvModel.cryptoCode }} = {{ srvModel.rate }}
+            </div>
+        </div>
+
+        <span class="fa fa-angle-double-down"></span>
+        <span class="fa fa-angle-double-up"></span>
+    </div>
+    <line-items>
+        <div class="line-items">
+            <div class="line-items__item">
+                <div class="line-items__item__label">{{$t("Order Amount")}}</div>
+                <div class="line-items__item__value">{{srvModel.orderAmount}} {{ srvModel.cryptoCode }}</div>
+            </div>
+            <div class="line-items__item">
+                <div class="line-items__item__label">
+                    <span>{{$t("Network Cost")}}</span>
+                </div>
+                <div class="line-items__item__value" i18n="">{{srvModel.networkFeeDescription }}</div>
+            </div>
+            <div class="line-items__item">
+                <div class="line-items__item__label">
+                    <span>{{$t("Already Paid")}}</span>
+                </div>
+                <div class="line-items__item__value">-{{srvModel.btcPaid }} {{ srvModel.cryptoCode }}</div>
+            </div>
+            <div class="line-items__item line-items__item--total">
+                <div class="line-items__item__label">{{$t("Due")}}</div>
+                <div class="line-items__item__value">{{srvModel.btcDue}} {{ srvModel.cryptoCode }}</div>
+            </div>
+        </div>
+    </line-items>
+    <div class="payment-tabs">
+        <div class="payment-tabs__tab active" id="scan-tab">
+            <span>{{$t("Scan")}}</span>
+        </div>
+        <div class="payment-tabs__tab" id="copy-tab">
+            <span>{{$t("Copy")}}</span>
+        </div>
+        @if (Model.AllowCoinConversion)
+        {
+            <div class="payment-tabs__tab" id="altcoins-tab">
+                <span>{{$t("Conversion")}}</span>
+            </div>
+            <div id="tabsSlider" class="payment-tabs__slider three-tabs"></div>
+        }
+        else
+        {
+            <div id="tabsSlider" class="payment-tabs__slider"></div>
+        }
+    </div>
+</div>
+
+<div adjust-height="" class="payment-box">
+    <div class="bp-view payment manual-flow enter-contact-email active" id="emailAddressView">
+        <form class="manual__step-one refund-address-form contact-email-form" id="emailAddressForm" name="emailAddressForm" novalidate="">
+            <div class="manual__step-one__header">
+                <span>{{$t("Contact and Refund Email")}}</span>
+            </div>
+            <div class="manual__step-one__instructions">
+                <span class="initial-label">
+                    <span>{{$t("Contact_Body")}}</span>
+                </span>
+                <span class="submission-error-label">{{$t("Please enter a valid email address")}}</span>
+            </div>
+            <div class="input-wrapper">
+                <input class="bp-input email-input ng-pristine ng-invalid ng-touched" id="emailAddressFormInput" v-bind:placeholder="$t('Your email')" type="email">
+                <bp-loading-button>
+                    <button type="submit" class="action-button" style="margin-top: 15px;">
+                        <span class="button-text">{{$t("Continue")}}</span>
+                        <div class="loader-wrapper">
+                            @Html.Partial("Checkout-Spinner")
+                        </div>
+                    </button>
+                </bp-loading-button>
+            </div>
+        </form>
+    </div>
+    <div class="bp-view payment scan" id="scan">
+        <div class="payment__scan">
+            <img v-bind:src="srvModel.cryptoImage" class="qr_currency_icon" />
+            <qrcode v-bind:val="srvModel.invoiceBitcoinUrlQR" v-bind:size="256" bg-color="#f5f5f7" fg-color="#000">
+            </qrcode>
+        </div>
+        <div class="payment__details__instruction__open-wallet">
+            <a class="payment__details__instruction__open-wallet__btn action-button" v-bind:href="srvModel.invoiceBitcoinUrl">
+                <span>{{$t("Open in wallet")}}</span>
+                <span class="glyphicon glyphicon-new-window"></span>
+            </a>
+        </div>
+    </div>
+
+    <div class="bp-view payment manual-flow" id="copy">
+        <div class="manual__step-two__instructions">
+            <span i18n="">{{$t("CompletePay_Body", srvModel)}}</span>
+        </div>
+        <div class="copyLabelPopup">
+            <span>{{$t("Copied")}}</span>
+        </div>
+        <nav v-if="srvModel.isLightning" class="copyBox">
+            <div class="copySectionBox bottomBorder">
+                <label>{{$t("BOLT 11 Invoice")}}</label>
+                <div class="inputWithIcon _copyInput">
+                    <input type="text" class="checkoutTextbox" v-bind:value="srvModel.btcAddress" readonly="readonly" />
+                    <img v-bind:src="srvModel.cryptoImage" />
+                </div>
+            </div>
+            <div class="separatorGem"></div>
+            <div class="copySectionBox">
+                <label>{{$t("Node Info")}}</label>
+                <div class="inputWithIcon _copyInput">
+                    <input type="text" class="checkoutTextbox" v-bind:value="srvModel.peerInfo" readonly="readonly" />
+                    <img v-bind:src="srvModel.cryptoImage" />
+                </div>
+            </div>
+        </nav>
+        <nav v-else class="copyBox">
+            <div class="copySectionBox bottomBorder">
+                <label>{{$t("Amount")}}</label>
+                <div class="copyAmountText copy-cursor _copySpan">
+                    <span>{{srvModel.btcDue}}</span> {{ srvModel.cryptoCode }}
+                </div>
+            </div>
+            <div class="separatorGem"></div>
+            <div class="copySectionBox">
+                <label>{{$t("Address")}}</label>
+                <div class="inputWithIcon _copyInput">
+                    <input type="text" class="checkoutTextbox" v-bind:value="srvModel.btcAddress" readonly="readonly" />
+                    <img v-bind:src="srvModel.cryptoImage" />
+                </div>
+            </div>
+        </nav>
+    </div>
+    @if (Model.AllowCoinConversion)
+    {
+        <div id="altcoins" class="bp-view payment manual-flow">
+            <nav v-if="srvModel.isLightning">
+                <div class="manual__step-two__instructions">
+                    <span>
+                        {{$t("ConversionTab_Lightning")}}
+                    </span>
+                </div>
+            </nav>
+            <nav v-else>
+                <div class="manual__step-two__instructions">
+                    <span>
+                        {{$t("ConversionTab_BodyTop", srvModel)}}
+                        <br /><br />
+                        {{$t("ConversionTab_BodyDesc", srvModel)}}
+                    </span>
+                </div>
+                <center>
+                    <script>function shapeshift_click(a, e) { e.preventDefault(); var link = a.href; var shapeshiftWindow = window.open(link, '1418115287605', 'width=700,height=500,toolbar=0,menubar=0,location=0,status=1,scrollbars=1,resizable=0,left=0,top=0'); shapeshiftWindow.focus(); return false; }</script>
+                    <a onclick="shapeshift_click(this, event);" v-bind:href="srvModel.shapeshiftUrl">
+                        <img src="https://shapeshift.io/images/shifty/xs_light_altcoins.png" class="ss-button">
+                    </a>
+
+                    @*Changelly doesn't have TO_AMOUNT support so we can't include it
+                            <script type="text/javascript">function open_widget(a, e) { e.preventDefault(); var link = a.href; var changellyWindow = window.open(link, 'Changelly', 'width=600,height=470,toolbar=0,menubar=0,location=0,status=1,scrollbars=1,resizable=0,left=0,top=0'); changellyWindow.focus(); return false; }</script>
+                        <a onclick="open_widget(this, event);" href="https://changelly.com/widget/v1?auth=email&from=DASH&to=BTC&address=&amount=1&merchant_id=&ref_id=">
+                            <img src="https://changelly.com/pay_button_pay_with.png" alt="Changelly" />
+                        </a>*@
+                </center>
+            </nav>
+        </div>
+    }
+
+    <div class="bp-view pad" id="paid">
+        <div class="status-block">
+            <div class="success-block">
+                <div class="status-icon">
+                    <div class="status-icon__wrapper">
+                        <div class="inner-wrapper">
+                            <div class="status-icon__wrapper__icon">
+                                <img src="~/imlegacy/checkmark.svg">
+                            </div>
+                            <div class="status-icon__wrapper__outline"></div>
+                        </div>
+                    </div>
+                </div>
+                <div class="success-message">{{$t("This invoice has been paid")}}</div>
+                <button class="action-button">
+                    <bp-done-text>
+                        <span>{{$t("Return to StoreName", srvModel)}}</span>
+                    </bp-done-text>
+                </button>
+            </div>
+        </div>
+        <div class="button-wrapper refund-address-form-container" id="refund-overpayment-button">
+        </div>
+    </div>
+
+    <div class="bp-view expired" id="archived">
+        <div class="expired-icon">
+            <img src="~/imlegacy/archived.svg">
+        </div>
+        <div class="archived__message">
+            <div class="archived__message__header">
+                <span>{{$t("This invoice has been archived")}}</span>
+            </div>
+            <div>
+                <span>{{$t("Archived_Body")}}</span>
+            </div>
+        </div>
+    </div>
+
+    <div class="bp-view expired" id="expired">
+        <div>
+            <div class="expired__body">
+                <div class="expired__header">{{$t("What happened?")}}</div>
+                <div class="expired__text" i18n="">
+                    {{$t("InvoiceExpired_Body_1", {storeName: srvModel.storeName, maxTimeMinutes: @Model.MaxTimeMinutes})}}
+                </div>
+                <div class="expired__text">
+                    {{$t("InvoiceExpired_Body_2")}}
+                </div>
+                <div class="expired__text">
+                    {{$t("InvoiceExpired_Body_3")}}
+                </div>
+                <div class="expired__text expired__text__smaller">
+                    <span class="expired__text__bullet">{{$t("Invoice ID")}}</span>:
+                    {{srvModel.invoiceId}}
+                    <br />
+                    <span class="expired__text__bullet">{{$t("Order ID")}}</span>:
+                    {{srvModel.orderId}}
+                </div>
+            </div>
+            <a href="/invoices" class="action-button" style="margin-top: 20px;">
+                <bp-done-text>
+                    <span>{{$t("Return to StoreName", srvModel)}}</span>
+                </bp-done-text>
+            </a>
+        </div>
+    </div>
+
+    @* Obsolete? Start *@
+    <div class="bp-view" id="link-expired" style="padding-top: 3.6rem;">
+        <div class="manual__step-one refund-address-form" novalidate="">
+            <div class="manual__step-one__header" i18n="">Link Expired</div>
+            <div class="manual__step-one__instructions">
+                <span class="initial-label" i18n="">Sorry, this link has expired. Please try requesting another refund by clicking the button below.</span>
+            </div>
+            <div class="input-wrapper">
+                <bp-loading-button i18n="">
+                    <button class="action-button" style="margin-top: 15px;" type="submit">
+                        <span class="button-text" lcl="">Request Refund</span>
+                        <div class="loader-wrapper">
+                            @Html.Partial("Checkout-Spinner")
+                        </div>
+                    </button>
+                </bp-loading-button>
+            </div>
+        </div>
+    </div>
+    <div class="bp-view confirm-contact-email-view">
+        <form class="manual__step-one refund-address-form contact-email-form ng-untouched ng-pristine" novalidate="">
+            <div class="manual__step-one__header" i18n="">Contact &amp; Refund Email</div>
+            <div class="manual__step-one__instructions">
+                <span class="initial-label" i18n="">If there is an issue with this payment, or a refund needs to be made, we will contact you at this address.</span>
+            </div>
+            <div class="input-wrapper">
+                <input bp-focus="focusEmailInput" class="bp-input email-input ng-untouched ng-pristine" disabled="disabled" name="receiptEmail" placeholder="Your email"
+                       style="opacity: 1;" type="email">
+                <button type="submit" class="action-button" style="margin-top: 15px;">
+                    <span i18n="">Confirm email address</span>
+                </button>
+            </div>
+            <div class="refund-address-form__link" id="wrong-email-button" style="color: #a9a9a9;">
+                <span i18n="">Wrong email?</span>
+            </div>
+        </form>
+    </div>
+    <div class="bp-view wrong-email-view" id="compromised-invoice">
+        <div class="manual__step-one refund-address-form" novalidate="" style="margin-top: -1rem;">
+            <div class="manual__step-one__header">
+                <span i18n="">There seems to be a problem</span>
+            </div>
+            <div class="manual__step-one__instructions">
+                <span class="initial-label" i18n="">
+                    This invoice was previously opened, and the address <strong class="placeholder-refundEmail">{Entered email address}</strong> was submitted as your contact email. If you entered this email, you can still safely make your payment. <br> <br>
+                    If you did not submit the email address, it's possible a thief falsely
+                    submitted this address to steal refunds. Please contact the merchant
+                    about this security incident, and try your payment again.
+                </span>
+            </div>
+            <div class="input-wrapper">
+                <a class="action-button" style="margin-top: 15px;" target="_blank" href="mailto:@Model.StoreEmail">
+                    <span i18n="">Contact {{srvModel.storeName}}</span>
+                </a>
+            </div>
+            <div class="refund-address-form__link">
+                <span i18n="">I understand, continue to payment&nbsp;→</span>
+            </div>
+        </div>
+    </div>
+    <div class="bp-view confirm-bitcoin-address-view" id="confirm-refund-address">
+        <form class="manual__step-one refund-address-form ng-untouched ng-pristine ng-valid" novalidate="" style="padding-top: 1.6rem;">
+            <div><img src="~/imlegacy/mail.svg"></div>
+            <div class="manual__step-one__header">
+                <span i18n="">Please confirm your address</span>
+            </div>
+            <div class="manual__step-one__instructions">
+                <span class="initial-label" i18n="">You should receive an email from us in a moment at <strong class="placeholder-refundEmail">{enterd refund email}</strong>. To ensure your refund is sent to the correct address, please confirm your bitcoin address by clicking the link in the email. </span>
+            </div>
+            <bp-resend-link id="resend-link">
+                <div class="bp-resend__link">
+                    <span class="link-text">
+
+                        <span i18n="">Resend email</span>
+
+                    </span>
+                    <div class="success-text">
+
+                        <img src="~/imlegacy/circle-check.svg">
+
+                        <div i18n="">Email resent</div>
+
+                    </div>
+                </div>
+            </bp-resend-link>
+        </form>
+    </div>
+    <div class="bp-view refund-address-view" id="enter-refund-address">
+        <form class="manual__step-one refund-address-form ng-untouched ng-pristine ng-invalid" name="refundAddressForm" novalidate="" style="margin-top: 28px; margin-bottom: 4rem;">
+            <div class="manual__step-one__header">
+
+                <span i18n="">Please provide a refund address.</span>
+
+            </div>
+            <div class="manual__step-one__instructions">
+                <span class="initial-label">
+
+                    <span i18n="">
+                        To send your refund of {BTC to refund} BTC,
+                        we’ll need a bitcoin address from your wallet. Please open your bitcoin
+                        wallet, copy a receiving address, and paste it below.
+                    </span>
+
+                </span>
+                <span class="submission-error-label" i18n="" id="invalid-bitcoin-address">Please enter a valid bitcoin address.</span>
+            </div>
+            <div class="input-wrapper">
+                <bp-refund-address name="refundAddress" ngmodel="" class="ng-untouched ng-pristine ng-invalid">
+                    <div class="bp-refund-address">
+                        <div class="bitcoin-logo">
+                            <div><img src="@Model.CryptoImage"></div>
+                        </div>
+                        <input class="bp-input {'not-empty': addressValue.length &gt; 0} ng-untouched ng-pristine ng-valid" id="refund-address-input" name="refundAddress" ngclass="{'not-empty': addressValue.length &gt; 0}">
+                    </div>
+                </bp-refund-address>
+                <bp-loading-button i18n="" id="request-refund-button">
+                    <button class="action-button" style="margin-top: 15px;" type="submit">
+                        <span class="button-text" lcl="">Request Refund</span>
+                        <div class="loader-wrapper">
+                            @Html.Partial("Checkout-Spinner")
+                        </div>
+                    </button>
+                </bp-loading-button>
+            </div>
+            <div class="refund-address-form__cancel">
+                <span i18n="">Cancel</span>
+            </div>
+        </form>
+    </div>
+    <div class="bp-view" id="refund-pending">
+        <div class="status-block">
+            <div class="pending-block" style="position: relative; padding-bottom: 1.6rem;">
+                <img src="~/imlegacy/refund-pending.svg">
+                <div class="pending-block__header" i18n="">Processing Refund</div>
+                <span>
+                    <span class="pending-block__message" i18n="">The amount below will be refunded to you within 1-2 business days. </span>
+                </span>
+            </div>
+        </div>
+        <div class="manual-box" style="margin-bottom: 30px;">
+            <div class="manual-box__amount amount-only">
+                <div class="manual-box__amount__label label">
+                    <span class="initial-label">&nbsp;</span>
+                    <span class="final-label" i18n="">Amount To Be Refunded</span>
+                </div>
+                <div class="manual-box__amount__value">{BTC Amount} BTC</div>
+            </div>
+            <div class="manual-box__address">
+                <div class="flipper">
+                    <div class="back"></div>
+                    <div class="front">
+                        <div class="manual-box__address__arrow"></div>
+                        <div class="manual-box__address__label label" i18n="">Will Be Refunded To</div>
+                        <div class="manual-box__address__wrapper">
+                            <div class="manual-box__address__wrapper__logo">
+                                <img src="~/imlegacy/bitcoin-symbol.svg">
+                            </div>
+                            <div class="manual-box__address__wrapper__value">
+                            </div>
+                        </div>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+    <div class="bp-view expired" id="low-fee">
+        <div class="expired__body">
+            <div class="expired__header" i18n="" style="font-weight: 400; font-size: 22px;">Payment Confirming</div>
+            <div class="expired__text" i18n="">This payment was made with a low <a href="https://bitcoin.org/en/glossary/transaction-fee">bitcoin miner fee</a>, which may prevent it from being accepted by the Bitcoin network.</div>
+            <div class="expired__text" i18n="">This is an issue with the configuration of your bitcoin wallet.</div>
+            <div class="expired__text" i18n="">
+                If the transaction
+                doesn't confirm, the funds will be spendable again in your wallet.
+                Depending on the wallet, this may take 48-72 hours.
+            </div>
+            <low-fee-timeline>
+                <div class="timeline">
+                    <div class="timeline__item">
+                        <div class="timeline__item__icon timeline__item__icon--complete">
+                            <img src="~/imlegacy/checkmark-small.svg">
+                        </div>
+                        <div class="timeline__item__name" i18n="">Transaction created</div>
+                    </div>
+                    <div class="timeline__item">
+                        <div class="timeline__item__icon timeline__item__icon--pending">
+                            <img src="~/imlegacy/pending.svg">
+                        </div>
+                        <div class="timeline__item__name">
+                            <span i18n="">Transaction confirming — funds have not yet moved</span>
+                        </div>
+                    </div>
+                    <div class="timeline__item">
+                        <div class="timeline__item__icon"></div>
+                        <div class="timeline__item__name" i18n="">Payment received by {{srvModel.storeName}}</div>
+                    </div>
+                </div>
+            </low-fee-timeline>
+        </div>
+        <button class="action-button" style="margin-top: .75rem;">
+            <bp-done-text>
+                <span i18n="">Return to {{srvModel.storeName}}</span>
+            </bp-done-text>
+        </button>
+    </div>
+    <div class="bp-view" id="refund-complete">
+        <div class="status-block">
+            <div class="success-block" style="opacity: 1;">
+                <div class="status-icon">
+                    <div class="status-icon__wrapper">
+                        <div class="inner-wrapper">
+                            <div class="status-icon__wrapper__icon">
+                                <img src="~/imlegacy/checkmark.svg">
+                            </div>
+                            <div class="status-icon__wrapper__outline" style="height: 117px; width: 117px;"></div>
+                        </div>
+                    </div>
+                </div>
+                <div class="success-message">
+                    <span>
+                        <span i18n="">Refund Complete</span>
+                    </span>
+                </div>
+            </div>
+        </div>
+        <div class="manual-box">
+            <div class="manual-box__amount amount-only">
+                <div class="manual-box__amount__label label">
+                    <span class="initial-label" i18n="">Overpaid By</span>
+                    <span class="final-label">
+                        <span i18n="">Amount Refunded</span>
+                    </span>
+                </div>
+                <div class="manual-box__amount__value">{BTC amount} BTC</div>
+            </div>
+            <div class="manual-box__address">
+                <div class="flipper flipped-initially">
+                    <div class="back"></div>
+                    <div class="front">
+                        <div class="manual-box__address__arrow"></div>
+                        <div class="manual-box__address__label label" i18n="">Refunded To</div>
+                        <div class="manual-box__address__wrapper">
+                            <div class="manual-box__address__wrapper__logo">
+                                <img src="~/imlegacy/bitcoin-symbol.svg">
+                            </div>
+                            <div class="manual-box__address__wrapper__value">
+                            </div>
+                        </div>
+                    </div>
+                </div>
+            </div>
+        </div>
+        <button class="action-button finished" style="margin-top: 23px;">
+            <bp-done-text>
+                <span>{{$t("Return to StoreName", srvModel)}}</span>
+            </bp-done-text>
+        </button>
+    </div>
+    <div class="footer-button enter-different-address-button">
+        <bp-done-text>
+            <span>{{$t("Return to StoreName", srvModel)}}</span>
+        </bp-done-text>
+    </div>
+    @* Obsolete? End *@
+</div>

BTCPayServer/Views/Invoice/Checkout-Spinner.cshtml

@@ -0,0 +1,5 @@
+<bp-spinner>
+    <svg xml:space="preserve" style="enable-background:new 0 0 50 50;" version="1.1" viewBox="0 0 50 50" x="0px" xmlns="http://www.w3.org/2000/svg" y="0px">
+    <path d="M11.1,29.6c-0.5-1.5-0.8-3-0.8-4.6c0-8.1,6.6-14.7,14.7-14.7S39.7,16.9,39.7,25c0,1.6-0.3,3.2-0.8,4.6l6.1,2c0.7-2.1,1.1-4.3,1.1-6.6c0-11.7-9.5-21.2-21.2-21.2S3.8,13.3,3.8,25c0,2.3,0.4,4.5,1.1,6.6L11.1,29.6z"></path>
+    </svg>
+</bp-spinner>

BTCPayServer/Views/Invoice/Checkout.cshtml

@@ -1,8 +1,8 @@
 @addTagHelper *, Meziantou.AspNetCore.BundleTagHelpers
+@inject BTCPayServer.Services.LanguageService langService
 @model PaymentModel
 @{
     Layout = null;
-    ViewData["Title"] = "Payment";
 }
 <!DOCTYPE html>
 <html>
@@ -20,6 +20,12 @@
     </script>
 
     <bundle name="wwwroot/bundles/checkout-bundle.min.js" />
+
+
+    @if(Model.CustomCSSLink != null)
+    {
+        <link href="@Model.CustomCSSLink" rel="stylesheet" />
+    }
 </head>
 <body style="background: #E4E4E4">
     <noscript>
@@ -46,589 +52,84 @@
 
     <invoice>
         <div class="no-bounce" id="checkoutCtrl">
-            @*<div class="modal-backdrop fade-in"></div>*@
-
-            <!---->
             <div class="modal page">
-                <div class="modal-dialog open opened" role="document">
+                <div class="modal-dialog open opened enter-purchaser-email" role="document">
                     <div class="modal-content long">
                         <div class="content">
                             <div class="invoice">
-                                <div class="top-header">
-                                    <div class="header">
-                                        <div class="header__icon">
-                                            <img class="header__icon__img" src="~/img/logo-white.png" height="40">
-                                        </div>
-                                        <!---->
-                                    </div>
-                                    <div class="timer-row">
-                                        <div class="timer-row__progress-bar" style="width: 0%;"></div>
-                                        <!---->
-                                        <div class="timer-row__spinner">
-                                            <bp-spinner>
-                                                <svg xml:space="preserve" style="enable-background:new 0 0 50 50;" version="1.1" viewBox="0 0 50 50" x="0px" xmlns="http://www.w3.org/2000/svg" y="0px">
-                                                <path d="M11.1,29.6c-0.5-1.5-0.8-3-0.8-4.6c0-8.1,6.6-14.7,14.7-14.7S39.7,16.9,39.7,25c0,1.6-0.3,3.2-0.8,4.6l6.1,2c0.7-2.1,1.1-4.3,1.1-6.6c0-11.7-9.5-21.2-21.2-21.2S3.8,13.3,3.8,25c0,2.3,0.4,4.5,1.1,6.6L11.1,29.6z"></path>
-                                                </svg>
-                                            </bp-spinner>
-                                        </div>
-                                        <div class="timer-row__message">
-                                            <!---->
-                                            <span>
-                                                <!---->
-                                                <span i18n="">Awaiting Payment...</span>
-                                                <!---->
-                                            </span>
-                                            <!---->
-                                        </div>
-                                        <div class="timer-row__time-left">@Model.TimeLeft</div>
-                                    </div>
-                                </div>
-                                <div class="order-details">
-                                    @if (Model.AvailableCryptos.Count > 1)
-                                    {
-                                        <div class="currency-selection">
-                                            <div class="single-item-order__left">
-                                                <div style="font-weight: 600;">
-                                                    Pay with
-                                                </div>
-                                            </div>
-                                            <div class="single-item-order__right">
-                                                <div class="payment__currencies">
-                                                    @foreach (var crypto in Model.AvailableCryptos)
-                                                    {
-                                                        <a href="@crypto.Link" onclick="return changeCurrency('@crypto.PaymentMethodId');">
-                                                            <img style="height:32px; margin-left:5px;" alt="@crypto.PaymentMethodId" src="@crypto.CryptoImage" />
-                                                        </a>
-                                                    }
-                                                </div>
-                                                <div class="payment__spinner">
-                                                    <bp-spinner>
-                                                        <svg xml:space="preserve" style="enable-background:new 0 0 50 50;" version="1.1" viewBox="0 0 50 50" x="0px" xmlns="http://www.w3.org/2000/svg" y="0px">
-                                                        <path d="M11.1,29.6c-0.5-1.5-0.8-3-0.8-4.6c0-8.1,6.6-14.7,14.7-14.7S39.7,16.9,39.7,25c0,1.6-0.3,3.2-0.8,4.6l6.1,2c0.7-2.1,1.1-4.3,1.1-6.6c0-11.7-9.5-21.2-21.2-21.2S3.8,13.3,3.8,25c0,2.3,0.4,4.5,1.1,6.6L11.1,29.6z"></path>
-                                                </svg>
-                                                    </bp-spinner>
-                                                </div>
-                                            </div>
-                                        </div>
-                                    }
-                                    <!---->
-                                    <div class="single-item-order buyerTotalLine">
-                                        <div class="single-item-order__left">
-                                            <div class="single-item-order__left__name">
-                                                {{ srvModel.storeName }}
-                                            </div>
-                                            <div class="single-item-order__left__description">
-                                                {{ srvModel.itemDesc }}
-                                            </div>
-                                        </div>
-                                        <!---->
-                                        <div class="single-item-order__right">
-                                            <div class="single-item-order__right__btc-price" id="buyerTotalBtcAmount">
-                                                <span>{{ srvModel.btcDue }} {{ srvModel.cryptoCode }}</span>
-                                            </div>
-                                            <!---->
-                                            <div class="single-item-order__right__ex-rate">
-                                                1 {{ srvModel.cryptoCode }} = {{ srvModel.rate }}
-                                            </div>
-                                            <!---->
-                                        </div>
-
-                                        <span class="fa fa-angle-double-down"></span>
-                                        <span class="fa fa-angle-double-up"></span>
-                                    </div>
-                                    <!---->
-                                    <line-items>
-                                        <div class="line-items">
-                                            <!---->
-                                            <div class="line-items__item">
-                                                <div class="line-items__item__label" i18n="">Order Amount</div>
-                                                <div class="line-items__item__value">{{srvModel.orderAmount}} {{ srvModel.cryptoCode }}</div>
-                                            </div>
-                                            <div class="line-items__item">
-                                                <div class="line-items__item__label">
-                                                    <span i18n="">Network Cost</span>
-                                                </div>
-                                                <div class="line-items__item__value" i18n="">{{srvModel.networkFeeDescription }}</div>
-                                            </div>
-                                            <div class="line-items__item">
-                                                <div class="line-items__item__label">
-                                                    <span i18n="">Already Paid</span>
-                                                </div>
-                                                <div class="line-items__item__value" i18n="">-{{srvModel.btcPaid }} {{ srvModel.cryptoCode }}</div>
-                                            </div>
-                                            <div class="line-items__item line-items__item--total">
-                                                <div class="line-items__item__label" i18n="">Due	</div>
-                                                <div class="line-items__item__value">{{srvModel.btcDue}} {{ srvModel.cryptoCode }}</div>
-                                            </div>
-                                            <!---->
-                                        </div>
-                                    </line-items>
-                                    <div class="payment-tabs">
-                                        <div class="payment-tabs__tab active" id="scan-tab">
-                                            <span i18n="">Scan</span>
-                                        </div>
-                                        <div class="payment-tabs__tab" id="copy-tab">
-                                            <span i18n="">Copy</span>
-                                        </div>
-                                        <div class="payment-tabs__slider"></div>
-                                    </div>
-                                </div>
-                                <div adjust-height="" class="payment-box">
-                                    <div class="bp-view payment scan" id="scan">
-                                        <div class="payment__scan">
-                                            <img v-bind:src="srvModel.cryptoImage" style="position: absolute; height:64px; width:64px; left:118px; top:96px;" />
-                                            <qrcode v-bind:val="srvModel.invoiceBitcoinUrlQR" v-bind:size="256" bg-color="#f5f5f7" fg-color="#000">
-                                            </qrcode>
-                                        </div>
-                                        <div class="payment__details__instruction__open-wallet">
-                                            <a class="payment__details__instruction__open-wallet__btn action-button" v-bind:href="srvModel.invoiceBitcoinUrl">
-                                                <span i18n="">Open in wallet</span>
-                                                <span class="glyphicon glyphicon-new-window"></span>
-                                            </a>
-                                        </div>
-                                    </div>
-                                    <div class="bp-view payment manual-flow enter-contact-email active" id="emailAddressView">
-                                        <form class="manual__step-one refund-address-form contact-email-form" id="emailAddressForm" name="emailAddressForm" novalidate="">
-                                            <div class="manual__step-one__header">
-                                                <!---->
-                                                <span i18n="">Contact &amp; Refund Email</span>
-                                                <!---->
-                                            </div>
-                                            <div class="manual__step-one__instructions">
-                                                <span class="initial-label">
-                                                    <!---->
-                                                    <span i18n="">Please provide an email address below. We’ll contact you at this address if there is an issue with your payment. </span>
-                                                    <!---->
-                                                </span>
-                                                <span class="submission-error-label" i18n="">Please enter a valid email address.</span>
-                                            </div>
-                                            <div class="input-wrapper">
-                                                <input class="bp-input email-input ng-pristine ng-invalid ng-touched" id="emailAddressFormInput" placeholder="Your email" type="email">
-                                                <bp-loading-button i18n="">
-                                                    <button class="action-button" style="margin-top: 15px;" type="button">
-                                                        <span class="button-text" lcl="">Continue</span>
-                                                        <div class="loader-wrapper">
-                                                            <bp-spinner>
-                                                                <svg xml:space="preserve" style="enable-background:new 0 0 50 50;" version="1.1" viewBox="0 0 50 50" x="0px" xmlns="http://www.w3.org/2000/svg" y="0px">
-                                                                <path d="M11.1,29.6c-0.5-1.5-0.8-3-0.8-4.6c0-8.1,6.6-14.7,14.7-14.7S39.7,16.9,39.7,25c0,1.6-0.3,3.2-0.8,4.6l6.1,2c0.7-2.1,1.1-4.3,1.1-6.6c0-11.7-9.5-21.2-21.2-21.2S3.8,13.3,3.8,25c0,2.3,0.4,4.5,1.1,6.6L11.1,29.6z"></path>
-                                </svg>
-                                                            </bp-spinner>
-                                                        </div>
-                                                    </button>
-                                                </bp-loading-button>
-                                            </div>
-                                        </form>
-                                    </div>
-                                    <div class="bp-view" id="link-expired" style="padding-top: 3.6rem;">
-                                        <div class="manual__step-one refund-address-form" novalidate="">
-                                            <div class="manual__step-one__header" i18n="">Link Expired</div>
-                                            <div class="manual__step-one__instructions">
-                                                <span class="initial-label" i18n="">Sorry, this link has expired. Please try requesting another refund by clicking the button below.</span>
-                                            </div>
-                                            <div class="input-wrapper">
-                                                <bp-loading-button i18n="">
-                                                    <button class="action-button" style="margin-top: 15px;" type="submit">
-                                                        <span class="button-text" lcl="">Request Refund</span>
-                                                        <div class="loader-wrapper">
-                                                            <bp-spinner>
-                                                                <svg xml:space="preserve" style="enable-background:new 0 0 50 50;" version="1.1" viewBox="0 0 50 50" x="0px" xmlns="http://www.w3.org/2000/svg" y="0px">
-                                                                <path d="M11.1,29.6c-0.5-1.5-0.8-3-0.8-4.6c0-8.1,6.6-14.7,14.7-14.7S39.7,16.9,39.7,25c0,1.6-0.3,3.2-0.8,4.6l6.1,2c0.7-2.1,1.1-4.3,1.1-6.6c0-11.7-9.5-21.2-21.2-21.2S3.8,13.3,3.8,25c0,2.3,0.4,4.5,1.1,6.6L11.1,29.6z"></path>
-                                </svg>
-                                                            </bp-spinner>
-                                                        </div>
-                                                    </button>
-                                                </bp-loading-button>
-                                            </div>
-                                        </div>
-                                    </div>
-                                    <div class="bp-view confirm-contact-email-view">
-                                        <form class="manual__step-one refund-address-form contact-email-form ng-untouched ng-pristine" novalidate="">
-                                            <div class="manual__step-one__header" i18n="">Contact &amp; Refund Email</div>
-                                            <div class="manual__step-one__instructions">
-                                                <span class="initial-label" i18n="">If there is an issue with this payment, or a refund needs to be made, we will contact you at this address.</span>
-                                            </div>
-                                            <div class="input-wrapper">
-                                                <input bp-focus="focusEmailInput" class="bp-input email-input ng-untouched ng-pristine" disabled="disabled" name="receiptEmail" placeholder="Your email" style="opacity: 1;" type="email">
-                                                <button class="action-button" style="margin-top: 15px;">
-                                                    <span i18n="">Confirm email address</span>
-                                                </button>
-                                            </div>
-                                            <div class="refund-address-form__link" id="wrong-email-button" style="color: #a9a9a9;">
-                                                <span i18n="">Wrong email?</span>
-                                            </div>
-                                        </form>
-                                    </div>
-                                    <div class="bp-view wrong-email-view" id="compromised-invoice">
-                                        <div class="manual__step-one refund-address-form" novalidate="" style="margin-top: -1rem;">
-                                            <div class="manual__step-one__header">
-                                                <span i18n="">There seems to be a problem</span>
-                                            </div>
-                                            <div class="manual__step-one__instructions">
-                                                <span class="initial-label" i18n="">
-                                                    This invoice was previously opened, and the address <strong class="placeholder-refundEmail">{Entered email address}</strong> was submitted as your contact email. If you entered this email, you can still safely make your payment. <br> <br>
-                                                    If you did not submit the email address, it's possible a thief falsely
-                                                    submitted this address to steal refunds. Please contact the merchant
-                                                    about this security incident, and try your payment again.
-                                                </span>
-                                            </div>
-                                            <div class="input-wrapper">
-                                                <a class="action-button" style="margin-top: 15px;" target="_blank" href="mailto:@Model.StoreEmail">
-                                                    <span i18n="">Contact {{srvModel.storeName}}</span>
-                                                </a>
-                                            </div>
-                                            <div class="refund-address-form__link">
-                                                <span i18n="">I understand, continue to payment&nbsp;→</span>
-                                            </div>
-                                        </div>
-                                    </div>
-                                    <div class="bp-view confirm-bitcoin-address-view" id="confirm-refund-address">
-                                        <form class="manual__step-one refund-address-form ng-untouched ng-pristine ng-valid" novalidate="" style="padding-top: 1.6rem;">
-                                            <div><img src="~/imlegacy/mail.svg"></div>
-                                            <div class="manual__step-one__header">
-                                                <span i18n="">Please confirm your address</span>
-                                            </div>
-                                            <div class="manual__step-one__instructions">
-                                                <span class="initial-label" i18n="">You should receive an email from us in a moment at <strong class="placeholder-refundEmail">{enterd refund email}</strong>. To ensure your refund is sent to the correct address, please confirm your bitcoin address by clicking the link in the email. </span>
-                                            </div>
-                                            <bp-resend-link id="resend-link">
-                                                <div class="bp-resend__link">
-                                                    <span class="link-text">
-                                                        <!---->
-                                                        <span i18n="">Resend email</span>
-                                                        <!---->
-                                                    </span>
-                                                    <div class="success-text">
-                                                        <!---->
-                                                        <img src="~/imlegacy/circle-check.svg">
-                                                        <!---->
-                                                        <div i18n="">Email resent</div>
-                                                        <!---->
-                                                    </div>
-                                                </div>
-                                            </bp-resend-link>
-                                        </form>
-                                    </div>
-                                    <div class="bp-view refund-address-view" id="enter-refund-address">
-                                        <form class="manual__step-one refund-address-form ng-untouched ng-pristine ng-invalid" name="refundAddressForm" novalidate="" style="margin-top: 28px; margin-bottom: 4rem;">
-                                            <div class="manual__step-one__header">
-                                                <!---->
-                                                <span i18n="">Please provide a refund address.</span>
-                                                <!---->
-                                            </div>
-                                            <div class="manual__step-one__instructions">
-                                                <span class="initial-label">
-                                                    <!---->
-                                                    <span i18n="">
-                                                        To send your refund of {BTC to refund} BTC,
-                                                        we’ll need a bitcoin address from your wallet. Please open your bitcoin
-                                                        wallet, copy a receiving address, and paste it below.
-                                                    </span>
-                                                    <!---->
-                                                </span>
-                                                <span class="submission-error-label" i18n="" id="invalid-bitcoin-address">Please enter a valid bitcoin address.</span>
-                                            </div>
-                                            <div class="input-wrapper">
-                                                <bp-refund-address name="refundAddress" ngmodel="" class="ng-untouched ng-pristine ng-invalid">
-                                                    <div class="bp-refund-address">
-                                                        <div class="bitcoin-logo">
-                                                            <div><img src="@Model.CryptoImage"></div>
-                                                        </div>
-                                                        <input class="bp-input {'not-empty': addressValue.length &gt; 0} ng-untouched ng-pristine ng-valid" id="refund-address-input" name="refundAddress" ngclass="{'not-empty': addressValue.length &gt; 0}">
-                                                    </div>
-                                                </bp-refund-address>
-                                                <bp-loading-button i18n="" id="request-refund-button">
-                                                    <button class="action-button" style="margin-top: 15px;" type="submit">
-                                                        <span class="button-text" lcl="">Request Refund</span>
-                                                        <div class="loader-wrapper">
-                                                            <bp-spinner>
-                                                                <svg xml:space="preserve" style="enable-background:new 0 0 50 50;" version="1.1" viewBox="0 0 50 50" x="0px" xmlns="http://www.w3.org/2000/svg" y="0px">
-                                                                <path d="M11.1,29.6c-0.5-1.5-0.8-3-0.8-4.6c0-8.1,6.6-14.7,14.7-14.7S39.7,16.9,39.7,25c0,1.6-0.3,3.2-0.8,4.6l6.1,2c0.7-2.1,1.1-4.3,1.1-6.6c0-11.7-9.5-21.2-21.2-21.2S3.8,13.3,3.8,25c0,2.3,0.4,4.5,1.1,6.6L11.1,29.6z"></path>
-                                </svg>
-                                                            </bp-spinner>
-                                                        </div>
-                                                    </button>
-                                                </bp-loading-button>
-                                            </div>
-                                            <div class="refund-address-form__cancel">
-                                                <span i18n="">Cancel</span>
-                                            </div>
-                                        </form>
-                                    </div>
-                                    <div class="bp-view payment manual-flow" id="copy">
-                                        <div class="manual__step-two__instructions">
-                                            <span i18n="">To complete your payment, please send {{ srvModel.btcDue }} {{ srvModel.cryptoCode }} to the address below.</span>
-                                        </div>
-                                        <div class="manual-box flipped" style="margin-bottom: 30px;">
-                                            <div class="manual-box__amount">
-                                                <div class="manual-box__amount__label label" i18n="">Amount</div>
-                                                <!---->
-                                                <div class="manual-box__amount__value copy-cursor" ngxclipboard="">
-                                                    <span>{{srvModel.btcDue}}</span> {{ srvModel.cryptoCode }}
-                                                    <div class="copied-label">
-                                                        <span i18n="">Copied</span>
-                                                    </div>
-                                                </div>
-                                                <!---->
-                                            </div>
-                                            <div class="manual-box__address">
-                                                <div class="flipper flipped-initially">
-                                                    <div class="back"></div>
-                                                    <div class="front">
-                                                        <div class="manual-box__address__arrow"></div>
-                                                        <div class="manual-box__address__label label" i18n="">Address</div>
-                                                        <!---->
-                                                        <div class="manual-box__address__value copy-cursor" ngxclipboard="">
-                                                            <div class="manual-box__address__wrapper">
-                                                                <div class="manual-box__address__wrapper__logo">
-                                                                    <img :src="srvModel.cryptoImage" height="16" />
-                                                                </div>
-                                                                <div class="manual-box__address__wrapper__value" style="overflow:hidden;max-width:240px;">{{srvModel.btcAddress}}</div>
-                                                            </div>
-                                                            <div class="copied-label" style="top: 5px;">
-                                                                <span i18n="">Copied</span>
-                                                            </div>
-                                                        </div>
-                                                        <!---->
-                                                    </div>
-                                                </div>
-                                            </div>
-                                        </div>
-                                    </div>
-                                    <div class="bp-view pad" id="paid">
-                                        <div class="status-block">
-                                            <div class="success-block">
-                                                <div class="status-icon">
-                                                    <div class="status-icon__wrapper">
-                                                        <div class="inner-wrapper">
-                                                            <div class="status-icon__wrapper__icon">
-                                                                <img src="~/imlegacy/checkmark.svg">
-                                                            </div>
-                                                            <div class="status-icon__wrapper__outline"></div>
-                                                        </div>
-                                                    </div>
-                                                </div>
-                                                <!---->
-                                                <div class="success-message" i18n="">This invoice has been paid.</div>
-                                                <!---->
-                                                <button class="action-button" style="margin-top: 0px;">
-                                                    <bp-done-text>
-                                                        <span i18n="" class="i18n-return-to-merchant">Return to {{srvModel.storeName}}</span>
-                                                    </bp-done-text>
-                                                </button>
-                                            </div>
-                                        </div>
-                                        <!---->
-                                        <div class="button-wrapper refund-address-form-container" id="refund-overpayment-button">
-                                            <!---->
-                                        </div>
-                                        <!---->
-                                    </div>
-                                    <div class="bp-view" id="refund-pending">
-                                        <div class="status-block">
-                                            <div class="pending-block" style="position: relative; padding-bottom: 1.6rem;">
-                                                <img src="~/imlegacy/refund-pending.svg">
-                                                <div class="pending-block__header" i18n="">Processing Refund</div>
-                                                <span>
-                                                    <!---->
-                                                    <!---->
-                                                    <!---->
-                                                    <span class="pending-block__message" i18n="">The amount below will be refunded to you within 1-2 business days. </span>
-                                                </span>
-                                            </div>
-                                        </div>
-                                        <div class="manual-box" style="margin-bottom: 30px;">
-                                            <div class="manual-box__amount amount-only">
-                                                <div class="manual-box__amount__label label">
-                                                    <span class="initial-label">&nbsp;</span>
-                                                    <span class="final-label" i18n="">Amount To Be Refunded</span>
-                                                </div>
-                                                <div class="manual-box__amount__value">{BTC Amount} BTC</div>
-                                            </div>
-                                            <div class="manual-box__address">
-                                                <div class="flipper">
-                                                    <div class="back"></div>
-                                                    <div class="front">
-                                                        <div class="manual-box__address__arrow"></div>
-                                                        <div class="manual-box__address__label label" i18n="">Will Be Refunded To</div>
-                                                        <div class="manual-box__address__wrapper">
-                                                            <div class="manual-box__address__wrapper__logo">
-                                                                <img src="~/imlegacy/bitcoin-symbol.svg">
-                                                            </div>
-                                                            <div class="manual-box__address__wrapper__value">
-                                                            </div>
-                                                        </div>
-                                                    </div>
-                                                </div>
-                                            </div>
-                                        </div>
-                                        <!---->
-                                    </div>
-                                    <div class="bp-view expired" id="low-fee">
-                                        <div class="expired__body">
-                                            <div class="expired__header" i18n="" style="font-weight: 400; font-size: 22px;">Payment Confirming</div>
-                                            <div class="expired__text" i18n="">This payment was made with a low <a href="https://bitcoin.org/en/glossary/transaction-fee">bitcoin miner fee</a>, which may prevent it from being accepted by the Bitcoin network.</div>
-                                            <div class="expired__text" i18n="">This is an issue with the configuration of your bitcoin wallet.</div>
-                                            <div class="expired__text" i18n="">
-                                                If the transaction
-                                                doesn't confirm, the funds will be spendable again in your wallet.
-                                                Depending on the wallet, this may take 48-72 hours.
-                                            </div>
-                                            <low-fee-timeline>
-                                                <div class="timeline">
-                                                    <div class="timeline__item">
-                                                        <div class="timeline__item__icon timeline__item__icon--complete">
-                                                            <img src="~/imlegacy/checkmark-small.svg">
-                                                        </div>
-                                                        <div class="timeline__item__name" i18n="">Transaction created</div>
-                                                    </div>
-                                                    <div class="timeline__item">
-                                                        <div class="timeline__item__icon timeline__item__icon--pending">
-                                                            <img src="~/imlegacy/pending.svg">
-                                                        </div>
-                                                        <div class="timeline__item__name">
-                                                            <span i18n="">Transaction confirming — funds have not yet moved</span>
-                                                        </div>
-                                                    </div>
-                                                    <div class="timeline__item">
-                                                        <div class="timeline__item__icon"></div>
-                                                        <div class="timeline__item__name" i18n="">Payment received by {{srvModel.storeName}}</div>
-                                                    </div>
-                                                </div>
-                                            </low-fee-timeline>
-                                        </div>
-                                        <!---->
-                                        <!---->
-                                        <button class="action-button" style="margin-top: .75rem;">
-                                            <bp-done-text>
-                                                <!---->
-                                                <!---->
-                                                <span i18n="" class="i18n-return-to-merchant">Return to {{srvModel.storeName}}</span>
-                                            </bp-done-text>
-                                        </button>
-                                    </div>
-                                    <div class="bp-view expired" id="expired">
-                                        <!---->
-                                        <div>
-                                            <div class="expired__body">
-                                                <div class="expired__header" i18n="">What happened?</div>
-                                                <div class="expired__text" i18n="">This invoice has expired. An invoice is only valid for @Model.MaxTimeMinutes minutes. You can <div class="expired__text__link i18n-return-to-merchant">return to {{srvModel.storeName}}</div> if you would like to submit your payment again.</div>
-                                                <div class="expired__text" i18n="">If you tried to send a payment, it has not yet been accepted by the Bitcoin network. We have not yet received your funds.</div>
-                                                <div class="expired__text" i18n="">
-                                                    If the transaction
-                                                    is not accepted by the Bitcoin network, the funds will be spendable
-                                                    again in your wallet. Depending on your wallet, this may take 48-72
-                                                    hours.
-                                                </div>
-                                                <div class="expired__text">
-                                                    <span class="expired__text__bullet" i18n="">Invoice ID:</span> {{srvModel.invoiceId}}<br>
-                                                    <!---->
-                                                    <span>
-                                                        <span class="expired__text__bullet" i18n="">Order ID:</span> {{srvModel.orderId}}
-                                                    </span>
-                                                </div>
-                                            </div>
-                                            <a href="/invoices" class="action-button" style="margin-top: 20px;">
-                                                <bp-done-text>
-                                                    <!---->
-                                                    <!---->
-                                                    <span i18n="" class="i18n-return-to-merchant">Return to {{srvModel.storeName}}</span>
-                                                </bp-done-text>
-                                            </a>
-                                        </div>
-                                        <!---->
-                                        <!---->
-                                    </div>
-                                    <div class="bp-view expired" id="archived">
-                                        <div class="expired-icon">
-                                            <img src="~/imlegacy/archived.svg">
-                                        </div>
-                                        <div class="archived__message">
-                                            <div class="archived__message__header">
-                                                <span i18n="">This invoice has been archived.</span>
-                                            </div>
-                                            <div>
-                                                <span i18n="">Please contact the store for order information or assistance.</span>
-                                            </div>
-                                        </div>
-                                    </div>
-                                    <!---->
-                                    <div class="bp-view" id="refund-complete">
-                                        <div class="status-block">
-                                            <div class="success-block" style="opacity: 1;">
-                                                <div class="status-icon">
-                                                    <div class="status-icon__wrapper">
-                                                        <div class="inner-wrapper">
-                                                            <div class="status-icon__wrapper__icon">
-                                                                <img src="~/imlegacy/checkmark.svg">
-                                                            </div>
-                                                            <div class="status-icon__wrapper__outline" style="height: 117px; width: 117px;"></div>
-                                                        </div>
-                                                    </div>
-                                                </div>
-                                                <div class="success-message">
-                                                    <!---->
-                                                    <span>
-                                                        <span i18n="">Refund Complete</span>
-                                                    </span>
-                                                    <!---->
-                                                </div>
-                                            </div>
-                                        </div>
-                                        <div class="manual-box">
-                                            <div class="manual-box__amount amount-only">
-                                                <div class="manual-box__amount__label label">
-                                                    <span class="initial-label" i18n="">Overpaid By</span>
-                                                    <!---->
-                                                    <span class="final-label">
-                                                        <span i18n="">Amount Refunded</span>
-                                                    </span>
-                                                    <!---->
-                                                </div>
-                                                <div class="manual-box__amount__value">{BTC amount} BTC</div>
-                                            </div>
-                                            <div class="manual-box__address">
-                                                <div class="flipper flipped-initially">
-                                                    <div class="back"></div>
-                                                    <div class="front">
-                                                        <div class="manual-box__address__arrow"></div>
-                                                        <div class="manual-box__address__label label" i18n="">Refunded To</div>
-                                                        <div class="manual-box__address__wrapper">
-                                                            <div class="manual-box__address__wrapper__logo">
-                                                                <img src="~/imlegacy/bitcoin-symbol.svg">
-                                                            </div>
-                                                            <div class="manual-box__address__wrapper__value">
-                                                            </div>
-                                                        </div>
-                                                    </div>
-                                                </div>
-                                            </div>
-                                        </div>
-                                        <button class="action-button finished" style="margin-top: 23px;">
-                                            <bp-done-text>
-                                                <!---->
-                                                <!---->
-                                                <span i18n="" class="i18n-return-to-merchant">Return to {{srvModel.storeName}}</span>
-                                            </bp-done-text>
-                                        </button>
-                                    </div>
-                                    <!---->
-                                    <!---->
-                                    <div class="footer-button enter-different-address-button">
-                                        <bp-done-text>
-                                            <!---->
-                                            <!---->
-                                            <span i18n="" class="i18n-return-to-merchant">Return to {{srvModel.storeName}}</span>
-                                        </bp-done-text>
-                                    </div>
-                                </div>
+                                @Html.Partial("Checkout-Body")
                             </div>
                         </div>
                     </div>
+                    <div style="margin-top: 10px; text-align: right;">
+                        @* Not working because of nsSeparator: false, keySeparator: false,
+                            {{$t("nested.lang")}} >>
+                        *@
+                        <select class="cmblang reverse invisible" onchange="changeLanguage($(this).val())">
+                            @foreach(var lang in langService.GetLanguages())
+                            {
+                                <option value="@lang.Code">@lang.DisplayName</option>
+                            }
+                        </select>
+                        <script>
+                            $(function () {
+                                var storeDefaultLang = '@Model.DefaultLang';
+                                if (urlParams.lang) {
+                                    $(".cmblang").val(urlParams.lang);
+                                } else if (storeDefaultLang) {
+                                    $(".cmblang").val(storeDefaultLang);
+                                }
+
+                                $('select').prettyDropdown({
+                                    classic: false,
+                                    height: 30,
+                                    reverse: true,
+                                    hoverIntent: 5000
+                                });
+                            });
+                        </script>
+                    </div>
+                    <div style="margin-top: 10px; text-align: right;" class="form-text small text-muted">
+                        <span>Powered by <a target="_blank" href="https://github.com/btcpayserver/btcpayserver">BTCPay Server</a></span>
+                    </div>
                 </div>
             </div>
         </div>
     </invoice>
     <script type="text/javascript">
+        var storeDefaultLang = '@Model.DefaultLang';
+        // initialization
+        i18next.init({
+            lng: storeDefaultLang,
+            fallbackLng: 'en-US',
+            nsSeparator: false,
+            keySeparator: false,
+            resources: {
+                'en-US': { translation: locales_en },
+                'de-DE': { translation: locales_de },
+                'es-ES': { translation: locales_es },
+                'ja-JP': { translation: locales_ja },
+                'fr-FR': { translation: locales_fr },
+                'pt-BR': { translation: locales_pt_br },
+                'nl': { translation: locales_nl },
+                'cs-CZ': { translation: locales_cs },
+                'is-IS': { translation: locales_is }
+            },
+        });
+
+        function changeLanguage(lang) {
+            i18next.changeLanguage(lang);
+        }
+
+        if (urlParams.lang) {
+            changeLanguage(urlParams.lang);
+        }
+        else if (storeDefaultLang) {
+            changeLanguage(storeDefaultLang);
+        }
+
+        const i18n = new VueI18next(i18next);
+
         // TODO: Move all logic from core.js to Vue controller
         Vue.config.ignoredElements = [
             'line-items',
@@ -637,12 +138,14 @@
             /^bp-/
         ];
         var checkoutCtrl = new Vue({
+            i18n: i18n,
             el: '#checkoutCtrl',
             components: {
                 qrcode: VueQr
             },
             data: {
-                srvModel: srvModel
+                srvModel: srvModel,
+                expiringSoon: false
             }
         });
     </script>

BTCPayServer/Views/Server/ListUsers.cshtml

@@ -23,7 +23,8 @@
             <tr>
                 <td>@user.Name</td>
                 <td>@user.Email</td>
-                <td><a asp-action="DeleteUser" asp-route-userId="@user.Id">Remove</a></td>
-            </tr>}
+                <td><a asp-action="User" asp-route-userId="@user.Id">Modify</a> <span> - </span> <a asp-action="DeleteUser" asp-route-userId="@user.Id">Remove</a></td>
+            </tr>
+        }
     </tbody>
 </table>

BTCPayServer/Views/Server/User.cshtml

@@ -0,0 +1,22 @@
+@model UserViewModel
+@{
+    ViewData["Title"] = Model.Email;
+    ViewData.AddActivePage(ServerNavPages.Users);
+}
+
+
+<h4>@ViewData["Title"]</h4>
+@Html.Partial("_StatusMessage", Model.StatusMessage)
+
+
+<div class="row">
+    <div class="col-md-8">
+        <form method="post">
+            <div class="form-group">
+                <label asp-for="IsAdmin"></label>
+                <input asp-for="IsAdmin" type="checkbox" class="form-check" />
+            </div>
+            <button name="command" type="submit" class="btn btn-success" value="Save">Save</button>
+        </form>
+    </div>
+</div>

BTCPayServer/Views/Shared/_Layout.cshtml

@@ -48,24 +48,25 @@
             </button>
             <div class="collapse navbar-collapse" id="navbarResponsive">
                 <ul class="navbar-nav ml-auto">
-                    @if (SignInManager.IsSignedIn(User))
-                    {
-                        @if (User.IsInRole(Roles.ServerAdmin))
-                        {
-                            <li class="nav-item"><a asp-area="" asp-controller="Server" asp-action="ListUsers" class="nav-link js-scroll-trigger">Server settings</a></li>
-                        }
-                        <li class="nav-item"><a asp-area="" asp-controller="Stores" asp-action="ListStores" class="nav-link js-scroll-trigger">Stores</a></li>
-                        <li class="nav-item"><a asp-area="" asp-controller="Invoice" asp-action="ListInvoices" class="nav-link js-scroll-trigger">Invoices</a></li>
-                        <li class="nav-item">
-                            <a asp-area="" asp-controller="Manage" asp-action="Index" title="Manage" class="nav-link js-scroll-trigger">My settings</a>
-                        </li>
-                        <li class="nav-item">
-                            <a asp-area="" asp-controller="Account" asp- asp-action="Logout" title="Manage" class="nav-link js-scroll-trigger">Log out</a>
-                        </li>}
-                    else
-                    {
-                        <li class="nav-item"><a asp-area="" asp-controller="Account" asp-action="Register" class="nav-link js-scroll-trigger">Register</a></li>
-                        <li class="nav-item"><a asp-area="" asp-controller="Account" asp-action="Login" class="nav-link js-scroll-trigger">Log in</a></li>}
+                    @if(SignInManager.IsSignedIn(User))
+    {
+                @if(User.IsInRole(Roles.ServerAdmin))
+{
+                <li class="nav-item"><a asp-area="" asp-controller="Server" asp-action="ListUsers" class="nav-link js-scroll-trigger">Server settings</a></li>
+}
+                <li class="nav-item"><a asp-area="" asp-controller="UserStores" asp-action="ListStores" class="nav-link js-scroll-trigger">Stores</a></li>
+                <li class="nav-item"><a asp-area="" asp-controller="Apps" asp-action="ListApps" class="nav-link js-scroll-trigger">Apps</a></li>
+                <li class="nav-item"><a asp-area="" asp-controller="Invoice" asp-action="ListInvoices" class="nav-link js-scroll-trigger">Invoices</a></li>
+                <li class="nav-item">
+                    <a asp-area="" asp-controller="Manage" asp-action="Index" title="Manage" class="nav-link js-scroll-trigger">My settings</a>
+                </li>
+                <li class="nav-item">
+                    <a asp-area="" asp-controller="Account" asp- asp-action="Logout" title="Manage" class="nav-link js-scroll-trigger">Log out</a>
+                </li>}
+else
+{
+                <li class="nav-item"><a asp-area="" asp-controller="Account" asp-action="Register" class="nav-link js-scroll-trigger">Register</a></li>
+                <li class="nav-item"><a asp-area="" asp-controller="Account" asp-action="Login" class="nav-link js-scroll-trigger">Log in</a></li>}
 
                 </ul>
             </div>

BTCPayServer/Views/Stores/AddDerivationScheme.cshtml

@@ -5,6 +5,7 @@
     ViewData.AddActivePage(BTCPayServer.Views.Stores.StoreNavPages.Index);
 }
 
+@Html.Partial("_StatusMessage", Model.StatusMessage)
 <h4>@ViewData["Title"]</h4>
 
 <div class="row">
@@ -16,101 +17,107 @@
     <div class="col-md-8">
         <form method="post">
             @if(!Model.Confirmation)
-    {
-        <div class="form-group">
-            <h5>Derivation Scheme</h5>
-            <span>The DerivationScheme represents the destination of the funds received by your invoice. It is generated by your wallet software. Please, verify that you are generating the right addresses by clicking on 'Check ExtPubKey'</span>
-        </div>
-        <div class="form-group">
-            <label asp-for="CryptoCurrency"></label>
-            <select asp-for="CryptoCurrency" asp-items="Model.CryptoCurrencies" class="form-control"></select>
-        </div>
-
-        <div class="form-group">
-            <label asp-for="DerivationScheme"></label>
-            <input asp-for="DerivationScheme" class="form-control" />
-            <span asp-validation-for="DerivationScheme" class="text-danger"></span>
-            <p id="no-ledger-info" class="form-text text-muted" style="display: none;">
-                No ledger wallet detected. If you own one, use chrome, open the app, activate the <a href="https://support.ledgerwallet.com/hc/en-us/articles/115005198565-What-is-the-Browser-support-option-made-for-">Browser support</a>, and refresh this page.
-            </p>
-            <p id="ledger-info" class="form-text text-muted" style="display: none;">
-                <span>A ledger wallet is detected, please use our <a id="ledger-info-recommended" href="#">recommended choice</a></span>
-            </p>
-        </div>
-        <div class="form-group">
-            <label asp-for="DerivationSchemeFormat"></label>
-            <select asp-for="DerivationSchemeFormat" asp-items="Model.DerivationSchemeFormats" class="form-control"></select>
-        </div>
-        <div class="form-group">
-            <span>BTCPay format memo</span>
-            <table class="table">
-                <thead class="thead-inverse">
-                    <tr>
-                        <th>Address type</th>
-                        <th>Example</th>
-                    </tr>
-                </thead>
-                <tbody>
-                    <tr>
-                        <td>P2WPKH</td>
-                        <td>xpub</td>
-                    </tr>
-                    <tr>
-                        <td>P2SH-P2WPKH</td>
-                        <td>xpub-[p2sh]</td>
-                    </tr>
-                    <tr>
-                        <td>P2PKH</td>
-                        <td>xpub-[legacy]</td>
-                    </tr>
-                    <tr>
-                        <td>Multi-sig P2WSH</td>
-                        <td>2-of-xpub1-xpub2</td>
-                    </tr>
-                    <tr>
-                        <td>Multi-sig P2SH-P2WSH</td>
-                        <td>2-of-xpub1-xpub2-[p2sh]</td>
-                    </tr>
-                    <tr>
-                        <td>Multi-sig P2SH</td>
-                        <td>2-of-xpub1-xpub2-[legacy]</td>
-                    </tr>
-                </tbody>
-            </table>
-        </div>
-        <button name="command" type="submit" class="btn btn-info">Continue</button>
-}
-else
-{
-        <div class="form-group">
-            <h5>Confirm the addresses (@Model.CryptoCurrency)</h5>
-            <span>Please check that your @Model.CryptoCurrency wallet is generating the same addresses as below.</span>
-        </div>
-        <input type="hidden" asp-for="CryptoCurrency" />
-        <input type="hidden" asp-for="Confirmation" />
-        <input type="hidden" asp-for="DerivationScheme" />
-        <input type="hidden" asp-for="DerivationSchemeFormat" />
-        <div class="form-group">
-            <table class="table">
-                <thead class="thead-inverse">
-                    <tr>
-                        <th>Key path</th>
-                        <th>Address</th>
-                    </tr>
-                </thead>
-                <tbody>
-                    @foreach(var sample in Model.AddressSamples)
             {
-                <tr>
-                    <td>@sample.KeyPath</td>
-                    <td>@sample.Address</td>
-                </tr>
-    }
-                </tbody>
-            </table>
-        </div>
-        <button name="command" type="submit" class="btn btn-success">Confirm</button>
-}
+                <div class="form-group">
+                    <h5>Derivation Scheme</h5>
+                    <span>The DerivationScheme represents the destination of the funds received by your invoice. It is generated by your wallet software. Please, verify that you are generating the right addresses by clicking on 'Check ExtPubKey'</span>
+                </div>
+                <input id="CryptoCurrency" asp-for="CryptoCode" type="hidden" />
+                <div class="form-group">
+                    <label asp-for="DerivationScheme"></label>
+                    <input asp-for="DerivationScheme" class="form-control" />
+                    <span asp-validation-for="DerivationScheme" class="text-danger"></span>
+                    <p id="no-ledger-info" class="form-text text-muted" style="display: none;">
+                        No ledger wallet detected. If you own one, use chrome, open the app, and refresh this page.
+                    </p>
+                    <div id="ledger-info" class="form-text text-muted" style="display: none;">
+                        <span>A ledger wallet is detected, which account do you want to use?</span>
+                        <ul>
+                            @for(int i = 0; i < 4; i++)
+                            {
+                                <li><a class="ledger-info-recommended" data-ledgeraccount="@i" href="#">Account @i (49'/<span class="ledger-info-cointype">0</span>'/@i')</a></li>
+                            }
+                        </ul>
+                    </div>
+                </div>
+                <div class="form-group">
+                    <span>BTCPay format memo</span>
+                    <table class="table">
+                        <thead class="thead-inverse">
+                            <tr>
+                                <th>Address type</th>
+                                <th>Example</th>
+                            </tr>
+                        </thead>
+                        <tbody>
+                            <tr>
+                                <td>P2WPKH</td>
+                                <td>xpub</td>
+                            </tr>
+                            <tr>
+                                <td>P2SH-P2WPKH</td>
+                                <td>xpub-[p2sh]</td>
+                            </tr>
+                            <tr>
+                                <td>P2PKH</td>
+                                <td>xpub-[legacy]</td>
+                            </tr>
+                            <tr>
+                                <td>Multi-sig P2WSH</td>
+                                <td>2-of-xpub1-xpub2</td>
+                            </tr>
+                            <tr>
+                                <td>Multi-sig P2SH-P2WSH</td>
+                                <td>2-of-xpub1-xpub2-[p2sh]</td>
+                            </tr>
+                            <tr>
+                                <td>Multi-sig P2SH</td>
+                                <td>2-of-xpub1-xpub2-[legacy]</td>
+                            </tr>
+                        </tbody>
+                    </table>
+                </div>
+                <button name="command" type="submit" class="btn btn-info">Continue</button>
+            }
+            else
+            {
+                <div class="form-group">
+                    <h5>Confirm the addresses (@Model.CryptoCode)</h5>
+                    <span>Please check that your @Model.CryptoCode wallet is generating the same addresses as below.</span>
+                </div>
+                <input type="hidden" asp-for="Confirmation" />
+                <input type="hidden" asp-for="DerivationScheme" />
+                <div class="form-group">
+                    <table class="table">
+                        <thead class="thead-inverse">
+                            <tr>
+                                <th>Key path</th>
+                                <th>Address</th>
+                            </tr>
+                        </thead>
+                        <tbody>
+                            @foreach(var sample in Model.AddressSamples)
+                            {
+                                <tr>
+                                    <td>@sample.KeyPath</td>
+                                    <td>@sample.Address</td>
+                                </tr>
+                            }
+                        </tbody>
+                    </table>
+                </div>
+
+                <div class="form-group">
+                    <h5>Wrong addresses?</h5>
+                    <span>Help us to find the correct settings by telling us the first address of your wallet</span>
+                </div>
+                <div class="form-group">
+                    <label asp-for="HintAddress"></label>
+                    <input asp-for="HintAddress" class="form-control" />
+                    <span asp-validation-for="HintAddress" class="text-danger"></span>
+                </div>
+                <button name="command" type="submit" class="btn btn-success">Confirm</button>
+            }
         </form>
     </div>
 </div>

BTCPayServer/Views/Stores/AddLightningNode.cshtml

@@ -16,14 +16,14 @@
 <div class="alert alert-warning alert-dismissible" role="alert">
     <button type="button" class="close" data-dismiss="alert" aria-label="Close"><span aria-hidden="true">&times;</span></button>
     <p>
-        <span>A connection to a lightning charge node is required to generate lignting network enabled invoices. <br /></span>
+        <span>A connection to a lightning charge node or clightning unix socket is required to generate lignting network enabled invoices. <br /></span>
         <span>This is experimental and not advised for production so keep in mind:</span>
     </p>
     <ul>
         <li>You might lose your money</li>
         <li>The devs of BTCPay Server don't know what they are doing and won't be able to help you if shit hit the fan</li>
         <li>You approve being #reckless and being the sole responsible party for your loss</li>
-        <li>BTCPay Server relies on a <a href="https://github.com/ElementsProject/lightning-charge">Lightning Charge</a> node</li>
+        <li>BTCPay Server relies on a <a href="https://github.com/ElementsProject/lightning-charge">Lightning Charge</a> node or CLightning unix socket</li>
         <li>If you have no idea what above mean, search by yourself</li>
         <li>If you still have no idea how to use lightning, give up for now, we'll make it easier later</li>
     </ul>
@@ -33,13 +33,8 @@
         <form method="post">
             <div class="form-group">
                 <h5>Lightning node url</h5>
-                <span>This URL should point to an installed lightning charge server</span>
+                <span>This URL should point to an installed lightning charge server for @Model.CryptoCode</span>
             </div>
-            <div class="form-group">
-                <label asp-for="CryptoCurrency"></label>
-                <select asp-for="CryptoCurrency" asp-items="Model.CryptoCurrencies" class="form-control"></select>
-            </div>
-
             <div class="form-group">
                 <label asp-for="Url"></label>
                 <input id="lightningurl" asp-for="Url" class="form-control" />

BTCPayServer/Views/Stores/CheckoutExperience.cshtml

@@ -0,0 +1,60 @@
+@model CheckoutExperienceViewModel
+@{
+    Layout = "../Shared/_NavLayout.cshtml";
+    ViewData["Title"] = "Checkout experience";
+    ViewData.AddActivePage(BTCPayServer.Views.Stores.StoreNavPages.Checkout);
+}
+
+<h4>@ViewData["Title"]</h4>
+@Html.Partial("_StatusMessage", TempData["TempDataProperty-StatusMessage"])
+
+<div class="row">
+    <div class="col-md-6">
+        <div asp-validation-summary="All" class="text-danger"></div>
+    </div>
+</div>
+<div class="row">
+    <div class="col-md-8">
+        <form method="post">
+            <div class="form-group">
+                <label asp-for="CustomLogo"></label>
+                <input asp-for="CustomLogo" class="form-control" />
+                <span asp-validation-for="CustomLogo" class="text-danger"></span>
+            </div>
+            <div class="form-group">
+                <label asp-for="CustomCSS"></label>
+                <input asp-for="CustomCSS" class="form-control" />
+                <span asp-validation-for="CustomCSS" class="text-danger"></span>
+            </div>
+            <div class="form-group">
+                <label asp-for="DefaultCryptoCurrency"></label>
+                <select asp-for="DefaultCryptoCurrency" asp-items="Model.CryptoCurrencies" class="form-control"></select>
+            </div>
+            <div class="form-group">
+                <label asp-for="DefaultLang"></label>
+                <select asp-for="DefaultLang" asp-items="Model.Languages" class="form-control"></select>
+            </div>
+            <div class="form-group">
+                <label asp-for="AllowCoinConversion"></label>
+                <input asp-for="AllowCoinConversion" type="checkbox" class="form-check" />
+            </div>
+            <div class="form-group">
+                <label asp-for="LightningMaxValue"></label>
+                <input asp-for="LightningMaxValue" class="form-control" />
+                <span asp-validation-for="LightningMaxValue" class="text-danger"></span>
+                <p class="form-text text-muted">Example: 5.50 USD</p>
+            </div>
+            <div class="form-group">
+                <label asp-for="OnChainMinValue"></label>
+                <input asp-for="OnChainMinValue" class="form-control" />
+                <span asp-validation-for="OnChainMinValue" class="text-danger"></span>
+                <p class="form-text text-muted">Example: 5.50 USD</p>
+            </div>
+            <button name="command" type="submit" class="btn btn-success" value="Save">Save</button>
+        </form>
+    </div>
+</div>
+
+@section Scripts {
+    @await Html.PartialAsync("_ValidationScriptsPartial")
+}