bump

Fix close invoice button for modal invoices #555

.circleci/config.yml

@@ -5,25 +5,94 @@ jobs:
       docker_layer_caching: true
     steps: 
       - checkout
+
   test:
-    machine: true
+    machine:
+        docker_layer_caching: true
     steps:
       - checkout
       - run:
           command: |
-            lsb_release -a
-            wget -q https://packages.microsoft.com/config/ubuntu/14.04/packages-microsoft-prod.deb
-            sudo dpkg -i packages-microsoft-prod.deb
-            sudo apt-get install apt-transport-https
-            sudo apt-get update
-            sudo apt-get install dotnet-sdk-2.1
-            dotnet build /p:TreatWarningsAsErrors=true
             cd BTCPayServer.Tests
-            dotnet test --filter Fast=Fast
-            docker-compose up -d dev
-            dotnet test --filter Integration=Integration
+            docker-compose down --v
+            docker-compose build
+            docker-compose run tests
+
+  # publish jobs require $DOCKERHUB_REPO, $DOCKERHUB_USER, $DOCKERHUB_PASS defined
+  publish_docker_linuxamd64:
+    machine:
+      docker_layer_caching: true
+    steps:
+      - checkout  
+      - run:
+          command: |
+            LATEST_TAG=${CIRCLE_TAG:1} #trim v from tag
+            #
+            sudo docker build --pull -t $DOCKERHUB_REPO:$LATEST_TAG-amd64 -f Dockerfile.linuxamd64 .
+            sudo docker login --username=$DOCKERHUB_USER --password=$DOCKERHUB_PASS
+            sudo docker push $DOCKERHUB_REPO:$LATEST_TAG-amd64
+
+  publish_docker_linuxarm:
+    machine:
+      docker_layer_caching: true
+    steps:
+      - checkout  
+      - run:
+          command: |
+            sudo docker run --rm --privileged multiarch/qemu-user-static:register --reset
+            LATEST_TAG=${CIRCLE_TAG:1} #trim v from tag
+            #
+            sudo docker build --pull -t $DOCKERHUB_REPO:$LATEST_TAG-arm32v7 -f Dockerfile.linuxarm32v7 .
+            sudo docker login --username=$DOCKERHUB_USER --password=$DOCKERHUB_PASS
+            sudo docker push $DOCKERHUB_REPO:$LATEST_TAG-arm32v7
+
+  publish_docker_multiarch:
+    machine:
+      enabled: true
+      image: circleci/classic:201808-01
+    steps:
+      - run:
+          command: |
+            # Turn on Experimental features
+            sudo mkdir $HOME/.docker
+            sudo sh -c 'echo "{ \"experimental\": \"enabled\" }" >> $HOME/.docker/config.json'
+            #
+            sudo docker login --username=$DOCKERHUB_USER --password=$DOCKERHUB_PASS
+            #
+            LATEST_TAG=${CIRCLE_TAG:1} #trim v from tag
+            sudo docker manifest create --amend $DOCKERHUB_REPO:$LATEST_TAG $DOCKERHUB_REPO:$LATEST_TAG-amd64 $DOCKERHUB_REPO:$LATEST_TAG-arm32v7
+            sudo docker manifest annotate $DOCKERHUB_REPO:$LATEST_TAG $DOCKERHUB_REPO:$LATEST_TAG-amd64 --os linux --arch amd64
+            sudo docker manifest annotate $DOCKERHUB_REPO:$LATEST_TAG $DOCKERHUB_REPO:$LATEST_TAG-arm32v7 --os linux --arch arm --variant v7
+            sudo docker manifest push $DOCKERHUB_REPO:$LATEST_TAG -p
+
 workflows:
   version: 2
   build_and_test:
     jobs:
       - test
+
+  publish:
+    jobs:
+      - publish_docker_linuxamd64:
+          filters:
+            # ignore any commit on any branch by default
+            branches:
+              ignore: /.*/
+            # only act on version tags
+            tags:
+              only: /v[1-9]+(\.[0-9]+)*/
+      - publish_docker_linuxarm:
+          filters:
+            branches:
+              ignore: /.*/
+            tags:
+              only: /v[1-9]+(\.[0-9]+)*/
+      - publish_docker_multiarch:
+          requires:
+            - publish_docker_linuxamd64
+            - publish_docker_linuxarm
+          filters:
+            branches:
+              ignore: /.*/
+            tags:
+              only: /v[1-9]+(\.[0-9]+)*/

BTCPayServer.Tests/BTCPayServer.Tests.csproj

@@ -6,6 +6,7 @@
     <IsPackable>false</IsPackable>
     <NoWarn>NU1701,CA1816,CA1308,CA1810,CA2208</NoWarn>
     <LangVersion>7.2</LangVersion>
+    <UserSecretsId>AB0AC1DD-9D26-485B-9416-56A33F268117</UserSecretsId>
   </PropertyGroup>
 
   <ItemGroup>

BTCPayServer.Tests/BTCPayServerTester.cs

@@ -34,6 +34,7 @@ using System.Security.Principal;
 using System.Text;
 using System.Threading;
 using Xunit;
+using BTCPayServer.Services;
 
 namespace BTCPayServer.Tests
 {
@@ -121,7 +122,7 @@ namespace BTCPayServer.Tests
             ServerUri = new Uri("http://" + HostName + ":" + Port + "/");
 
             Environment.SetEnvironmentVariable("ASPNETCORE_ENVIRONMENT", "Development");
-            var conf = new DefaultConfiguration() { Logger = Logs.LogProvider.CreateLogger("Console") }.CreateConfiguration(new[] { "--datadir", _Directory, "--conf", confPath });
+            var conf = new DefaultConfiguration() { Logger = Logs.LogProvider.CreateLogger("Console") }.CreateConfiguration(new[] { "--datadir", _Directory, "--conf", confPath, "--disable-registration", "false" });
             _Host = new WebHostBuilder()
                     .UseConfiguration(conf)
                     .ConfigureServices(s =>

BTCPayServer.Tests/CoinSwitchTests.cs

@@ -0,0 +1,89 @@
+using BTCPayServer.Controllers;
+using BTCPayServer.Models.StoreViewModels;
+using BTCPayServer.Payments.CoinSwitch;
+using BTCPayServer.Tests.Logging;
+using Microsoft.AspNetCore.Mvc;
+using Xunit;
+using Xunit.Abstractions;
+
+namespace BTCPayServer.Tests
+{
+    public class CoinSwitchTests
+    {
+        public CoinSwitchTests(ITestOutputHelper helper)
+        {
+            Logs.Tester = new XUnitLog(helper) {Name = "Tests"};
+            Logs.LogProvider = new XUnitLogProvider(helper);
+        }
+
+        [Fact]
+        [Trait("Integration", "Integration")]
+        public async void CanSetCoinSwitchPaymentMethod()
+        {
+            using (var tester = ServerTester.Create())
+            {
+                tester.Start();
+                var user = tester.NewAccount();
+                user.GrantAccess();
+                var controller = tester.PayTester.GetController<StoresController>(user.UserId, user.StoreId);
+
+
+                var storeBlob = controller.StoreData.GetStoreBlob();
+                Assert.Null(storeBlob.CoinSwitchSettings);
+
+                var updateModel = new UpdateCoinSwitchSettingsViewModel()
+                {
+                    MerchantId = "aaa",
+                };
+
+                Assert.Equal("UpdateStore", Assert.IsType<RedirectToActionResult>(
+                    await controller.UpdateCoinSwitchSettings(user.StoreId, updateModel, "save")).ActionName);
+
+                var store = await tester.PayTester.StoreRepository.FindStore(user.StoreId);
+                storeBlob = controller.StoreData.GetStoreBlob();
+                Assert.NotNull(storeBlob.CoinSwitchSettings);
+                Assert.NotNull(storeBlob.CoinSwitchSettings);
+                Assert.IsType<CoinSwitchSettings>(storeBlob.CoinSwitchSettings);
+                Assert.Equal(storeBlob.CoinSwitchSettings.MerchantId,
+                    updateModel.MerchantId);
+            }
+        }
+
+
+        [Fact]
+        [Trait("Integration", "Integration")]
+        public async void CanToggleCoinSwitchPaymentMethod()
+        {
+            using (var tester = ServerTester.Create())
+            {
+                tester.Start();
+                var user = tester.NewAccount();
+                user.GrantAccess();
+                var controller = tester.PayTester.GetController<StoresController>(user.UserId, user.StoreId);
+
+                var updateModel = new UpdateCoinSwitchSettingsViewModel()
+                {
+                    MerchantId = "aaa",
+                    Enabled = true
+                };
+                Assert.Equal("UpdateStore", Assert.IsType<RedirectToActionResult>(
+                    await controller.UpdateCoinSwitchSettings(user.StoreId, updateModel, "save")).ActionName);
+
+
+                var store = await tester.PayTester.StoreRepository.FindStore(user.StoreId);
+
+                Assert.True(store.GetStoreBlob().CoinSwitchSettings.Enabled);
+
+                updateModel.Enabled = false;
+
+                Assert.Equal("UpdateStore", Assert.IsType<RedirectToActionResult>(
+                    await controller.UpdateCoinSwitchSettings(user.StoreId, updateModel, "save")).ActionName);
+
+                store = await tester.PayTester.StoreRepository.FindStore(user.StoreId);
+
+                Assert.False(store.GetStoreBlob().CoinSwitchSettings.Enabled);
+            }
+        }
+   
+    }
+}

BTCPayServer.Tests/CrowdfundTests.cs

@@ -0,0 +1,252 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net.Http;
+using System.Threading;
+using System.Threading.Tasks;
+using BTCPayServer.Controllers;
+using BTCPayServer.Crowdfund;
+using BTCPayServer.Data;
+using BTCPayServer.Events;
+using BTCPayServer.Hubs;
+using BTCPayServer.Models;
+using BTCPayServer.Models.AppViewModels;
+using BTCPayServer.Models.StoreViewModels;
+using BTCPayServer.Payments.Changelly;
+using BTCPayServer.Payments.Changelly.Models;
+using BTCPayServer.Services.Apps;
+using BTCPayServer.Services.Invoices;
+using BTCPayServer.Services.Rates;
+using BTCPayServer.Services.Stores;
+using BTCPayServer.Tests.Logging;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Logging;
+using NBitcoin;
+using NBitpayClient;
+using Xunit;
+using Xunit.Abstractions;
+
+namespace BTCPayServer.Tests
+{
+    public class CrowdfundTests
+    {
+        public CrowdfundTests(ITestOutputHelper helper)
+        {
+            Logs.Tester = new XUnitLog(helper) {Name = "Tests"};
+            Logs.LogProvider = new XUnitLogProvider(helper);
+        }
+
+        [Fact]
+        [Trait("Integration", "Integration")]
+        public void CanCreateAndDeleteCrowdfundApp()
+        {
+            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";
+                vm.SelectedAppType = AppType.Crowdfund.ToString();
+                var redirectToAction = Assert.IsType<RedirectToActionResult>(apps.CreateApp(vm).Result);
+                Assert.Equal(nameof(apps.UpdateCrowdfund), 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.Equal(apps.CreatedAppId, appList.Apps[0].Id);
+                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]
+        [Trait("Integration", "Integration")]
+        public async Task CanContributeOnlyWhenAllowed()
+        {
+            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.Crowdfund.ToString();
+                Assert.IsType<RedirectToActionResult>(apps.CreateApp(vm).Result);
+                var appId = Assert.IsType<ListAppsViewModel>(Assert.IsType<ViewResult>(apps.ListApps().Result).Model)
+                    .Apps[0].Id;
+                
+                //Scenario 1: Not Enabled - Not Allowed
+                var crowdfundViewModel = Assert.IsType<UpdateCrowdfundViewModel>(Assert
+                    .IsType<ViewResult>(apps.UpdateCrowdfund(appId).Result).Model);
+                crowdfundViewModel.TargetCurrency = "BTC";
+                crowdfundViewModel.Enabled = false;
+                crowdfundViewModel.EndDate = null;
+                
+                Assert.IsType<RedirectToActionResult>(apps.UpdateCrowdfund(appId, crowdfundViewModel).Result);
+                
+                var anonAppPubsController = tester.PayTester.GetController<AppsPublicController>();
+                var publicApps = user.GetController<AppsPublicController>();
+
+
+                Assert.IsType<NotFoundObjectResult>(await anonAppPubsController.ContributeToCrowdfund(appId, new ContributeToCrowdfund()
+                {
+                    Amount = new decimal(0.01)
+                }));
+                
+                Assert.IsType<NotFoundResult>(await anonAppPubsController.ViewCrowdfund(appId, string.Empty));
+                
+                //Scenario 2: Not Enabled But Admin - Allowed
+                Assert.IsType<OkObjectResult>(await publicApps.ContributeToCrowdfund(appId, new ContributeToCrowdfund()
+                {
+                    RedirectToCheckout = false,
+                    Amount = new decimal(0.01)
+                }));
+                Assert.IsType<ViewResult>(await publicApps.ViewCrowdfund(appId, string.Empty));
+                Assert.IsType<NotFoundResult>(await anonAppPubsController.ViewCrowdfund(appId, string.Empty));
+                
+                //Scenario 3: Enabled But Start Date > Now - Not Allowed
+                crowdfundViewModel.StartDate= DateTime.Today.AddDays(2);
+                crowdfundViewModel.Enabled = true;
+                
+                Assert.IsType<RedirectToActionResult>(apps.UpdateCrowdfund(appId, crowdfundViewModel).Result);
+                Assert.IsType<NotFoundObjectResult>(await anonAppPubsController.ContributeToCrowdfund(appId, new ContributeToCrowdfund()
+                {
+                    Amount = new decimal(0.01)
+                }));
+                
+                //Scenario 4: Enabled But End Date < Now - Not Allowed
+                
+                crowdfundViewModel.StartDate= DateTime.Today.AddDays(-2);
+                crowdfundViewModel.EndDate= DateTime.Today.AddDays(-1);
+                crowdfundViewModel.Enabled = true;
+                
+                Assert.IsType<RedirectToActionResult>(apps.UpdateCrowdfund(appId, crowdfundViewModel).Result);
+                Assert.IsType<NotFoundObjectResult>(await anonAppPubsController.ContributeToCrowdfund(appId, new ContributeToCrowdfund()
+                {
+                    Amount = new decimal(0.01)
+                }));
+                
+                
+                //Scenario 5: Enabled and within correct timeframe, however target is enforced and Amount is Over - Not Allowed
+                crowdfundViewModel.StartDate= DateTime.Today.AddDays(-2);
+                crowdfundViewModel.EndDate= DateTime.Today.AddDays(2);
+                crowdfundViewModel.Enabled = true;
+                crowdfundViewModel.TargetAmount = 1;
+                crowdfundViewModel.TargetCurrency = "BTC";
+                crowdfundViewModel.EnforceTargetAmount = true;
+                Assert.IsType<RedirectToActionResult>(apps.UpdateCrowdfund(appId, crowdfundViewModel).Result);
+                Assert.IsType<NotFoundObjectResult>(await anonAppPubsController.ContributeToCrowdfund(appId, new ContributeToCrowdfund()
+                {
+                    Amount = new decimal(1.01)
+                }));
+                
+                //Scenario 6: Allowed
+                Assert.IsType<OkObjectResult>(await anonAppPubsController.ContributeToCrowdfund(appId, new ContributeToCrowdfund()
+                {
+                    Amount = new decimal(0.05)
+                }));
+                
+            }
+        }
+
+        [Fact]
+        [Trait("Integration", "Integration")]
+        public void CanComputeCrowdfundModel()
+        {
+            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.Crowdfund.ToString();
+                Assert.IsType<RedirectToActionResult>(apps.CreateApp(vm).Result);
+                var appId = Assert.IsType<ListAppsViewModel>(Assert.IsType<ViewResult>(apps.ListApps().Result).Model)
+                    .Apps[0].Id;
+                
+                var crowdfundViewModel = Assert.IsType<UpdateCrowdfundViewModel>(Assert
+                    .IsType<ViewResult>(apps.UpdateCrowdfund(appId).Result).Model);
+                crowdfundViewModel.Enabled = true;
+                crowdfundViewModel.EndDate = null;
+                crowdfundViewModel.TargetAmount = 100;
+                crowdfundViewModel.TargetCurrency = "BTC";
+                crowdfundViewModel.UseAllStoreInvoices = true;
+                Assert.IsType<RedirectToActionResult>(apps.UpdateCrowdfund(appId, crowdfundViewModel).Result);
+                
+                var anonAppPubsController = tester.PayTester.GetController<AppsPublicController>();
+                var publicApps = user.GetController<AppsPublicController>();
+
+                var model = Assert.IsType<ViewCrowdfundViewModel>(Assert
+                    .IsType<ViewResult>(publicApps.ViewCrowdfund(appId, String.Empty).Result).Model);
+                
+                
+                Assert.Equal(crowdfundViewModel.TargetAmount, model.TargetAmount );
+                Assert.Equal(crowdfundViewModel.EndDate, model.EndDate );
+                Assert.Equal(crowdfundViewModel.StartDate, model.StartDate );
+                Assert.Equal(crowdfundViewModel.TargetCurrency, model.TargetCurrency );
+                Assert.Equal(0m, model.Info.CurrentAmount );
+                Assert.Equal(0m, model.Info.CurrentPendingAmount);
+                Assert.Equal(0m, model.Info.ProgressPercentage);
+                
+                
+                
+                var invoice = user.BitPay.CreateInvoice(new Invoice()
+                {
+                    Buyer = new Buyer() { email = "test@fwf.com" },
+                    Price = 1m,
+                    Currency = "BTC",
+                    PosData = "posData",
+                    OrderId = $"{CrowdfundHubStreamer.CrowdfundInvoiceOrderIdPrefix}{appId}",
+                    ItemDesc = "Some description",
+                    TransactionSpeed = "high",
+                    FullNotifications = true
+                }, Facade.Merchant);
+
+                
+                model = Assert.IsType<ViewCrowdfundViewModel>(Assert
+                    .IsType<ViewResult>(publicApps.ViewCrowdfund(appId, String.Empty).Result).Model);
+                
+                var invoiceAddress = BitcoinAddress.Create(invoice.CryptoInfo[0].Address, tester.ExplorerNode.Network);
+               
+                
+                
+                tester.ExplorerNode.SendToAddress(invoiceAddress,invoice.BtcDue);
+                Assert.Equal(0m ,model.Info.CurrentAmount );
+                Assert.Equal(1m, model.Info.CurrentPendingAmount);
+                Assert.Equal( 0m, model.Info.ProgressPercentage);
+                Assert.Equal(1m, model.Info.PendingProgressPercentage);
+
+                
+    
+               
+            }
+
+            
+        }
+        
+    }
+
+
+}

BTCPayServer.Tests/CustomerHttpServer.cs

@@ -8,30 +8,27 @@ using Microsoft.AspNetCore.Builder;
 using System.Threading.Tasks;
 using System.Threading;
 using Microsoft.AspNetCore.Hosting.Server.Features;
+using System.Threading.Channels;
+using System.IO;
+using Newtonsoft.Json.Linq;
+using Newtonsoft.Json;
 
 namespace BTCPayServer.Tests
 {
     public class CustomServer : IDisposable
     {
-        TaskCompletionSource<bool> _Evt = null;
         IWebHost _Host = null;
         CancellationTokenSource _Closed = new CancellationTokenSource();
+        Channel<JObject> _Requests = Channel.CreateUnbounded<JObject>();
         public CustomServer()
-        {
+        { 
             var port = Utils.FreeTcpPort();
             _Host = new WebHostBuilder()
                 .Configure(app =>
                 {
                     app.Run(req =>
                     {
-                        while (_Act == null)
-                        {
-                            Thread.Sleep(10);
-                            _Closed.Token.ThrowIfCancellationRequested();
-                        }
-                        _Act(req);
-                        _Act = null;
-                        _Evt.TrySetResult(true);
+                        _Requests.Writer.WriteAsync(JsonConvert.DeserializeObject<JObject>(new StreamReader(req.Request.Body).ReadToEnd()), _Closed.Token);
                         req.Response.StatusCode = 200;
                         return Task.CompletedTask;
                     });
@@ -47,22 +44,24 @@ namespace BTCPayServer.Tests
             return new Uri(_Host.ServerFeatures.Get<IServerAddressesFeature>().Addresses.First());
         }
 
-        Action<HttpContext> _Act;
-        public void ProcessNextRequest(Action<HttpContext> act)
+        public async Task<JObject> GetNextRequest()
         {
-            var source = new TaskCompletionSource<bool>();
-            CancellationTokenSource cancellation = new CancellationTokenSource(20000);
-            cancellation.Token.Register(() => source.TrySetCanceled());
-            source = new TaskCompletionSource<bool>();
-            _Evt = source;
-            _Act = act;
-            try
+            using (CancellationTokenSource cancellation = new CancellationTokenSource(2000000))
             {
-                _Evt.Task.GetAwaiter().GetResult();
-            }
-            catch (TaskCanceledException)
-            {
-                throw new Xunit.Sdk.XunitException("Callback to the webserver was expected, check if the callback url is accessible from internet");
+                try
+                {
+                    JObject req = null;
+                    while(!await _Requests.Reader.WaitToReadAsync(cancellation.Token) || 
+                        !_Requests.Reader.TryRead(out req))
+                    {
+
+                    }
+                    return req;
+                }
+                catch (TaskCanceledException)
+                {
+                    throw new Xunit.Sdk.XunitException("Callback to the webserver was expected, check if the callback url is accessible from internet");
+                }
             }
         }
 

BTCPayServer.Tests/Dockerfile

@@ -1,12 +1,17 @@
-FROM microsoft/dotnet:2.1.403-sdk-alpine3.7
-WORKDIR /app
- # caches restore result by copying csproj file separately
-COPY BTCPayServer.Tests/BTCPayServer.Tests.csproj BTCPayServer.Tests/BTCPayServer.Tests.csproj
+FROM microsoft/dotnet:2.1.500-sdk-alpine3.7 AS builder
+ENV DOTNET_SYSTEM_GLOBALIZATION_INVARIANT false
+RUN apk add --no-cache icu-libs
+ENV LC_ALL en_US.UTF-8
+ENV LANG en_US.UTF-8
+
+# This should be removed soon https://github.com/dotnet/corefx/issues/30003
+RUN apk add --no-cache curl 
+
+WORKDIR /source
 COPY BTCPayServer/BTCPayServer.csproj BTCPayServer/BTCPayServer.csproj
-
-WORKDIR /app/BTCPayServer.Tests
-RUN dotnet restore
-# copies the rest of your code
-COPY . ../.
-
-ENTRYPOINT ["dotnet", "test"]
+COPY BTCPayServer.Tests/BTCPayServer.Tests.csproj BTCPayServer.Tests/BTCPayServer.Tests.csproj
+RUN dotnet restore BTCPayServer.Tests/BTCPayServer.Tests.csproj
+COPY . .
+RUN dotnet build
+WORKDIR /source/BTCPayServer.Tests
+ENTRYPOINT ["./docker-entrypoint.sh"]

BTCPayServer.Tests/MockDelay.cs

@@ -0,0 +1,64 @@
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace BTCPayServer.Tests
+{
+    public class MockDelay : IDelay
+    {
+        class WaitObj
+        {
+            public DateTimeOffset Expiration;
+            public TaskCompletionSource<bool> CTS;
+        }
+
+        List<WaitObj> waits = new List<WaitObj>();
+        DateTimeOffset _Now = new DateTimeOffset(1970, 1, 1, 0, 0, 0, TimeSpan.Zero);
+        public async Task Wait(TimeSpan delay, CancellationToken cancellation)
+        {
+            WaitObj w = new WaitObj();
+            w.Expiration = _Now + delay;
+            w.CTS = new TaskCompletionSource<bool>();
+            using (cancellation.Register(() =>
+             {
+                 w.CTS.TrySetCanceled();
+             }))
+            {
+                lock (waits)
+                {
+                    waits.Add(w);
+                }
+                await w.CTS.Task;
+            }
+        }
+
+        public void Advance(TimeSpan time)
+        {
+            _Now += time;
+            lock (waits)
+            {
+                foreach (var wait in waits.ToArray())
+                {
+                    if (_Now >= wait.Expiration)
+                    {
+                        wait.CTS.TrySetResult(true);
+                        waits.Remove(wait);
+                    }
+                }
+            }
+        }
+
+        public void AdvanceMilliseconds(long milli)
+        {
+            Advance(TimeSpan.FromMilliseconds(milli));
+        }
+
+        public override string ToString()
+        {
+            return _Now.Millisecond.ToString(CultureInfo.InvariantCulture);
+        }
+    }
+}

BTCPayServer.Tests/ServerTester.cs

@@ -22,6 +22,7 @@ using BTCPayServer.Tests.Lnd;
 using BTCPayServer.Payments.Lightning;
 using BTCPayServer.Lightning.CLightning;
 using BTCPayServer.Lightning;
+using BTCPayServer.Services;
 
 namespace BTCPayServer.Tests
 {
@@ -152,6 +153,7 @@ namespace BTCPayServer.Tests
         {
             get; set;
         }
+
         public List<string> Stores { get; internal set; } = new List<string>();
 
         public void Dispose()

BTCPayServer.Tests/TestAccount.cs

@@ -17,6 +17,7 @@ using BTCPayServer.Payments.Lightning;
 using BTCPayServer.Tests.Logging;
 using BTCPayServer.Lightning;
 using BTCPayServer.Lightning.CLightning;
+using BTCPayServer.Data;
 
 namespace BTCPayServer.Tests
 {
@@ -58,6 +59,21 @@ namespace BTCPayServer.Tests
             CreateStoreAsync().GetAwaiter().GetResult();
         }
 
+        public void SetNetworkFeeMode(NetworkFeeMode mode)
+        {
+            ModifyStore((store) =>
+            {
+                store.NetworkFeeMode = mode;
+            });
+        }
+        public void ModifyStore(Action<StoreViewModel> modify)
+        {
+            var storeController = GetController<StoresController>();
+            StoreViewModel store = (StoreViewModel)((ViewResult)storeController.UpdateStore()).Model;
+            modify(store);
+            storeController.UpdateStore(store).GetAwaiter().GetResult();
+        }
+
         public T GetController<T>(bool setImplicitStore = true) where T : Controller
         {
             return parent.PayTester.GetController<T>(UserId, setImplicitStore ? StoreId : null);
@@ -83,10 +99,6 @@ namespace BTCPayServer.Tests
             var store = parent.PayTester.GetController<StoresController>(UserId, StoreId);
             ExtKey = new ExtKey().GetWif(SupportedNetwork.NBitcoinNetwork);
             DerivationScheme = new DerivationStrategyFactory(SupportedNetwork.NBitcoinNetwork).Parse(ExtKey.Neuter().ToString() + (segwit ? "" : "-[legacy]"));
-            var vm = (StoreViewModel)((ViewResult)store.UpdateStore()).Model;
-            vm.SpeedPolicy = SpeedPolicy.MediumSpeed;
-            await store.UpdateStore(vm);
-
             await store.AddDerivationScheme(StoreId, new DerivationSchemeViewModel()
             {
                 DerivationScheme = DerivationScheme.ToString(),

BTCPayServer.Tests/UtilitiesTests.cs

@@ -0,0 +1,111 @@
+using System;
+using System.Linq;
+using System.Collections.Generic;
+using System.Net.Http;
+using System.Text;
+using System.Threading.Tasks;
+using Microsoft.Extensions.Configuration;
+using NBitcoin.DataEncoders;
+using Newtonsoft.Json.Linq;
+using Xunit;
+using System.IO;
+
+namespace BTCPayServer.Tests
+{
+    /// <summary>
+    /// This class hold easy to run utilities for dev time
+    /// </summary>
+    public class UtilitiesTests
+    {
+        /// <summary>
+        /// Download transifex transactions and put them in BTCPayServer\wwwroot\locales
+        /// </summary>
+        [Trait("Utilities", "Utilities")]
+        [Fact]
+        public async Task PullTransifexTranslations()
+        {
+            // 1. Generate an API Token on https://www.transifex.com/user/settings/api/
+            // 2. Run "dotnet user-secrets set TransifexAPIToken <youapitoken>"
+            var client = new TransifexClient(GetTransifexAPIToken());
+            var json = await client.GetTransifexAsync("https://api.transifex.com/organizations/btcpayserver/projects/btcpayserver/resources/enjson/");
+            var langs = new[] { "en" }.Concat(((JObject)json["stats"]).Properties().Select(n => n.Name)).ToArray();
+
+            var langsDir = Path.Combine(Services.LanguageService.TryGetSolutionDirectoryInfo().FullName, "BTCPayServer", "wwwroot", "locales");
+
+            JObject sourceLang = null;
+            Task.WaitAll(langs.Select(async l =>
+            {
+                bool isSourceLang = l == "en";
+                var j = await client.GetTransifexAsync($"https://www.transifex.com/api/2/project/btcpayserver/resource/enjson/translation/{l}/");
+                if(!isSourceLang)
+                {
+                    while (sourceLang == null)
+                        await Task.Delay(10);
+                }
+                var content = j["content"].Value<string>();
+                if (l == "ne_NP")
+                    l = "np_NP";
+                if (l == "zh_CN")
+                    l = "zh-SP";
+                if (l == "kk")
+                    l = "kk-KZ";
+
+                var langCode = l.Replace("_", "-");
+                var langFile = Path.Combine(langsDir, langCode + ".json");
+                var jobj = JObject.Parse(content);
+                jobj["code"] = langCode;
+
+                if ((string)jobj["currentLanguage"] == "English" && !isSourceLang)
+                    return; // Not translated
+                if ((string)jobj["currentLanguage"] == "disable")
+                    return; // Not translated
+
+                jobj.AddFirst(new JProperty("NOTICE_WARN", "THIS CODE HAS BEEN AUTOMATICALLY GENERATED FROM TRANSIFEX, IF YOU WISH TO HELP TRANSLATION COME ON THE SLACK http://slack.btcpayserver.org TO REQUEST PERMISSION TO https://www.transifex.com/btcpayserver/btcpayserver/"));
+                if (isSourceLang)
+                {
+                    sourceLang = jobj;
+                }
+                else
+                {
+                    if(jobj["InvoiceExpired_Body_3"].Value<string>() == sourceLang["InvoiceExpired_Body_3"].Value<string>())
+                    {
+                        jobj["InvoiceExpired_Body_3"] = string.Empty;
+                    }
+                }
+                content = jobj.ToString(Newtonsoft.Json.Formatting.Indented);
+                File.WriteAllText(Path.Combine(langsDir, langFile), content);
+            }).ToArray());
+        }
+
+        private static string GetTransifexAPIToken()
+        {
+            var builder = new ConfigurationBuilder();
+            builder.AddUserSecrets("AB0AC1DD-9D26-485B-9416-56A33F268117");
+            var config = builder.Build();
+            var token = config["TransifexAPIToken"];
+            Assert.False(token == null, "TransifexAPIToken is not set.\n 1.Generate an API Token on https://www.transifex.com/user/settings/api/ \n 2.Run \"dotnet user-secrets set TransifexAPIToken <youapitoken>\"");
+            return token;
+        }
+    }
+
+    public class TransifexClient
+    {
+        public TransifexClient(string apiToken)
+        {
+            Client = new HttpClient();
+            APIToken = apiToken;
+        }
+
+        public HttpClient Client { get; }
+        public string APIToken { get; }
+
+        public async Task<JObject> GetTransifexAsync(string uri)
+        {
+            var message = new HttpRequestMessage(HttpMethod.Get, uri);
+            message.Headers.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Basic", Encoders.Base64.EncodeData(Encoding.ASCII.GetBytes($"api:{APIToken}")));
+            message.Headers.Accept.Add(new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue("application/json"));
+            var response = await Client.SendAsync(message);
+            return await response.Content.ReadAsAsync<JObject>();
+        }
+    }
+}

BTCPayServer.Tests/docker-bitcoin-cli.ps1

@@ -1 +1,2 @@
-docker exec -ti btcpayservertests_bitcoind_1 bitcoin-cli -datadir="/data" $args
+$bitcoind_container_id=$(docker ps -q --filter label=com.docker.compose.project=btcpayservertests --filter label=com.docker.compose.service=bitcoind)
+docker exec -ti $bitcoind_container_id bitcoin-cli -datadir="/data" $args

BTCPayServer.Tests/docker-bitcoin-cli.sh

@@ -1,3 +1,4 @@
 #!/bin/bash
 
-docker exec -ti btcpayservertests_bitcoind_1 bitcoin-cli -datadir="/data" "$@"
+bitcoind_container_id="$(docker ps -q --filter label=com.docker.compose.project=btcpayservertests --filter label=com.docker.compose.service=bitcoind)"
+docker exec -ti "$bitcoind_container_id" bitcoin-cli -datadir="/data" "$@"

BTCPayServer.Tests/docker-compose.yml

@@ -2,7 +2,7 @@ version: "3"
 
 # Run `docker-compose up dev` for bootstrapping your development environment
 # Doing so will expose NBXplorer, Bitcoind RPC and postgres port to the host so that tests can Run,
-# The Visual Studio launch setting `Docker-Regtest` is configured to use this environment.
+# The Visual Studio launch setting `Docker-regtest` is configured to use this environment.
 services:
 
   tests:
@@ -19,10 +19,10 @@ services:
       TESTS_MYSQL: User ID=root;Host=mysql;Port=3306;Database=btcpayserver
       TESTS_PORT: 80
       TESTS_HOSTNAME: tests
-      TEST_MERCHANTLIGHTNINGD: "type=clightning;server=/etc/merchant_lightningd_datadir/lightning-rpc"
-      TEST_CUSTOMERLIGHTNINGD: "type=clightning;server=/etc/customer_lightningd_datadir/lightning-rpc"
-      TEST_MERCHANTCHARGE: "type=charge;server=https://lightning-charged:9112/;api-token=foiewnccewuify;allowinsecure=true"
-      TEST_MERCHANTLND: "type=lnd-rest;server=https://lnd:lnd@127.0.0.1:53280/;allowinsecure=true"
+      TEST_MERCHANTLIGHTNINGD: "type=clightning;server=unix://etc/merchant_lightningd_datadir/lightning-rpc"
+      TEST_CUSTOMERLIGHTNINGD: "type=clightning;server=unix://etc/customer_lightningd_datadir/lightning-rpc"
+      TEST_MERCHANTCHARGE: "type=charge;server=http://lightning-charged:9112/;api-token=foiewnccewuify"
+      TEST_MERCHANTLND: "https://lnd:lnd@merchant_lnd:8080/"
       TESTS_INCONTAINER: "true"
     expose:
       - "80"
@@ -36,7 +36,7 @@ services:
 
   # The dev container is not actually used, it is just handy to run `docker-compose up dev` to start all services
   dev: 
-    image: nicolasdorier/docker-bitcoin:0.17.0
+    image: btcpayserver/bitcoin:0.17.0
     environment:
       BITCOIN_NETWORK: regtest
       BITCOIN_EXTRA_ARGS: |
@@ -53,7 +53,7 @@ services:
       - merchant_lnd
 
   devlnd: 
-    image: nicolasdorier/docker-bitcoin:0.17.0
+    image: btcpayserver/bitcoin:0.17.0
     environment:
       BITCOIN_NETWORK: regtest
       BITCOIN_EXTRA_ARGS: |
@@ -69,7 +69,7 @@ services:
 
 
   nbxplorer:
-    image: nicolasdorier/nbxplorer:1.1.0.9
+    image: nicolasdorier/nbxplorer:2.0.0.8
     restart: unless-stopped
     ports:
       - "32838:32838"
@@ -93,12 +93,13 @@ services:
       - bitcoind
       - litecoind
 
+
   bitcoind:
-    image: nicolasdorier/docker-bitcoin:0.17.0
+    restart: unless-stopped
+    image: btcpayserver/bitcoin:0.17.0
     environment:
       BITCOIN_NETWORK: regtest
-      BITCOIN_EXTRA_ARGS: |
-        deprecatedrpc=signrawtransaction
+      BITCOIN_EXTRA_ARGS: |-
         rpcuser=ceiwHEbqWI83
         rpcpassword=DwubwWsoo3
         rpcport=43782
@@ -106,9 +107,9 @@ services:
         whitelist=0.0.0.0/0
         zmqpubrawblock=tcp://0.0.0.0:28332
         zmqpubrawtx=tcp://0.0.0.0:28333
+        deprecatedrpc=signrawtransaction
     ports: 
       - "43782:43782"
-      - "28332:28332"
     expose:
       - "43782" # RPC
       - "39388" # P2P
@@ -118,7 +119,8 @@ services:
       - "bitcoin_datadir:/data"
 
   customer_lightningd:
-    image: nicolasdorier/clightning:v0.6.2-3-dev
+    image: btcpayserver/lightning:v0.6.2-dev
+    stop_signal: SIGKILL
     restart: unless-stopped
     environment: 
       EXPOSE_TCP: "true"
@@ -143,7 +145,7 @@ services:
       - bitcoind
 
   lightning-charged:
-    image: shesek/lightning-charge:0.4.3
+    image: shesek/lightning-charge:0.4.6-standalone
     restart: unless-stopped
     environment:
       NETWORK: regtest
@@ -163,7 +165,8 @@ services:
       - merchant_lightningd
 
   merchant_lightningd:
-    image: nicolasdorier/clightning:v0.6.2-3-dev
+    image: btcpayserver/lightning:v0.6.2-dev
+    stop_signal: SIGKILL
     environment: 
       EXPOSE_TCP: "true"
       LIGHTNINGD_OPT: |
@@ -186,13 +189,13 @@ services:
       - bitcoind
 
   litecoind:
-    image: nicolasdorier/docker-litecoin:0.15.1
+    restart: unless-stopped
+    image: nicolasdorier/docker-litecoin:0.16.3
     environment:
-      BITCOIN_EXTRA_ARGS: |
+      BITCOIN_EXTRA_ARGS: |-
         rpcuser=ceiwHEbqWI83
         rpcpassword=DwubwWsoo3
         regtest=1
-        server=1
         rpcport=43782
         port=39388
         whitelist=0.0.0.0/0
@@ -219,13 +222,16 @@ services:
       - MYSQL_ALLOW_EMPTY_PASSWORD=yes
 
   merchant_lnd:
-    image: btcpayserver/lnd:0.5-beta-2
+    image: btcpayserver/lnd:v0.5.1-beta
     restart: unless-stopped
     environment:
       LND_CHAIN: "btc"
       LND_ENVIRONMENT: "regtest"
+      LND_EXPLORERURL: "http://nbxplorer:32838/"
       LND_EXTRA_ARGS: |
         restlisten=0.0.0.0:8080
+        rpclisten=127.0.0.1:10008
+        rpclisten=0.0.0.0:10009
         bitcoin.node=bitcoind
         bitcoind.rpchost=bitcoind:43782
         bitcoind.zmqpubrawblock=tcp://bitcoind:28332
@@ -246,13 +252,16 @@ services:
       - bitcoind
 
   customer_lnd:
-    image: btcpayserver/lnd:0.5-beta-2
+    image: btcpayserver/lnd:v0.5.1-beta
     restart: unless-stopped
     environment:
       LND_CHAIN: "btc"
       LND_ENVIRONMENT: "regtest"
+      LND_EXPLORERURL: "http://nbxplorer:32838/"
       LND_EXTRA_ARGS: |
         restlisten=0.0.0.0:8080
+        rpclisten=127.0.0.1:10008
+        rpclisten=0.0.0.0:10009
         bitcoin.node=bitcoind
         bitcoind.rpchost=bitcoind:43782
         bitcoind.zmqpubrawblock=tcp://bitcoind:28332

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

@@ -1 +1,2 @@
-docker exec -ti btcpayservertests_customer_lightningd_1 lightning-cli $args
+$customer_lightning_container_id=$(docker ps -q --filter label=com.docker.compose.project=btcpayservertests --filter label=com.docker.compose.service=customer_lightningd)
+docker exec -ti $customer_lightning_container_id lightning-cli $args

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

@@ -1,3 +1,4 @@
 #!/bin/bash
 
-docker exec -ti btcpayservertests_customer_lightningd_1 lightning-cli "$@"
+customer_lightning_container_id="$(docker ps -q --filter label=com.docker.compose.project=btcpayservertests --filter label=com.docker.compose.service=customer_lightningd)"
+docker exec -ti $customer_lightning_container_id lightning-cli "$@"

BTCPayServer.Tests/docker-entrypoint.sh

@@ -0,0 +1,5 @@
+#!/bin/sh
+set -e
+
+dotnet test --filter Fast=Fast --no-build
+dotnet test --filter Integration=Integration --no-build -v n

BTCPayServer.Tests/docker-litecoin-cli.ps1

@@ -1 +1,2 @@
-docker exec -ti btcpayservertests_litecoind_1 litecoin-cli -datadir="/data" $args
+$litecoind_container_id=$(docker ps -q --filter label=com.docker.compose.project=btcpayservertests --filter label=com.docker.compose.service=litecoind)
+docker exec -ti $litecoind_container_id litecoin-cli -datadir="/data" $args

BTCPayServer.Tests/docker-litecoin-cli.sh

@@ -1,3 +1,4 @@
 #!/bin/bash
 
-docker exec -ti btcpayservertests_litecoind_1 litecoin-cli -datadir="/data" "$@"
+litecoind_container_id="$(docker ps -q --filter label=com.docker.compose.project=btcpayservertests --filter label=com.docker.compose.service=litecoind)"
+docker exec -ti "$litecoind_container_id" litecoin-cli -datadir="/data" "$@"

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

@@ -1 +1,2 @@
-docker exec -ti btcpayservertests_merchant_lightningd_1 lightning-cli $args
+$merchant_lightning_container_id=$(docker ps -q --filter label=com.docker.compose.project=btcpayservertests --filter label=com.docker.compose.service=merchant_lightningd)
+docker exec -ti $merchant_lightning_container_id lightning-cli $args

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

@@ -1,3 +1,4 @@
 #!/bin/bash
 
-docker exec -ti btcpayservertests_merchant_lightningd_1 lightning-cli "$@"
+merchant_lightning_container_id="$(docker ps -q --filter label=com.docker.compose.project=btcpayservertests --filter label=com.docker.compose.service=merchant_lightningd)"
+docker exec -ti $merchant_lightning_container_id lightning-cli "$@"

BTCPayServer.Tests/xunit.runner.json

@@ -1,3 +1,5 @@
 {
-    "parallelizeTestCollections": false
-}
+    "parallelizeTestCollections": false,
+    "longRunningTestSeconds": 60,
+    "diagnosticMessages": true
+}

BTCPayServer/Authentication/TokenRepository.cs

@@ -242,6 +242,8 @@ namespace BTCPayServer.Authentication
             using (var ctx = _Factory.CreateContext())
             {
                 var token = await ctx.PairedSINData.FindAsync(tokenId);
+                if (token == null)
+                    return null;
                 return CreateTokenEntity(token);
             }
         }

BTCPayServer/BTCPayNetworkProvider.Bitcoinplus.cs

@@ -0,0 +1,35 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using BTCPayServer.Services.Rates;
+using NBitcoin;
+using NBXplorer;
+
+namespace BTCPayServer
+{
+    public partial class BTCPayNetworkProvider
+    {
+        public void InitBitcoinplus()
+        {
+            var nbxplorerNetwork = NBXplorerNetworkProvider.GetFromCryptoCode("XBC");
+            Add(new BTCPayNetwork()
+            {
+                CryptoCode = nbxplorerNetwork.CryptoCode,
+                DisplayName = "Bitcoinplus",
+                BlockExplorerLink = NetworkType == NetworkType.Mainnet ? "https://chainz.cryptoid.info/xbc/tx.dws?{0}" : "https://chainz.cryptoid.info/xbc/tx.dws?{0}",
+                NBitcoinNetwork = nbxplorerNetwork.NBitcoinNetwork,
+                NBXplorerNetwork = nbxplorerNetwork,
+                UriScheme = "bitcoinplus",
+                DefaultRateRules = new[] 
+                {
+                                "XBC_X = XBC_BTC * BTC_X",
+                                "XBC_BTC = cryptopia(XBC_BTC)"
+                },
+                CryptoImagePath = "imlegacy/bitcoinplus.png",
+                DefaultSettings = BTCPayDefaultSettings.GetDefaultSettings(NetworkType),
+                CoinType = NetworkType == NetworkType.Mainnet ? new KeyPath("65'") : new KeyPath("1'")
+            });
+        }
+    }
+}

BTCPayServer/BTCPayNetworkProvider.Bitcore.cs

@@ -24,7 +24,7 @@ namespace BTCPayServer
                 DefaultRateRules = new[]
                 {
                                 "BTX_X = BTX_BTC * BTC_X",
-                                "BTX_BTC = cryptopia(BTX_BTC)"
+                                "BTX_BTC = hitbtc(BTX_BTC)"
                 },
                 CryptoImagePath = "imlegacy/bitcore.svg",
                 LightningImagePath = "imlegacy/bitcore-lightning.svg",

BTCPayServer/BTCPayNetworkProvider.Groestlcoin.cs

@@ -26,7 +26,7 @@ namespace BTCPayServer
                                 "GRS_BTC = bittrex(GRS_BTC)"
                 },
                 CryptoImagePath = "imlegacy/groestlcoin.png",
-                LightningImagePath = "imlegacy/groestlcoin-lightning.png",
+                LightningImagePath = "imlegacy/groestlcoin-lightning.svg",
                 DefaultSettings = BTCPayDefaultSettings.GetDefaultSettings(NetworkType),
                 CoinType = NetworkType == NetworkType.Mainnet ? new KeyPath("17'") : new KeyPath("1'")
             });

BTCPayServer/BTCPayNetworkProvider.Monacoin.cs

@@ -24,7 +24,7 @@ namespace BTCPayServer
                 DefaultRateRules = new[] 
                 {
                                 "MONA_X = MONA_BTC * BTC_X",
-                                "MONA_BTC = zaif(MONA_BTC)"
+                                "MONA_BTC = bittrex(MONA_BTC)"
                 },
                 CryptoImagePath = "imlegacy/monacoin.png",
                 LightningImagePath = "imlegacy/mona-lightning.svg",

BTCPayServer/BTCPayNetworkProvider.cs

@@ -52,10 +52,13 @@ namespace BTCPayServer
             InitBitcoinGold();
             InitMonacoin();
             InitDash();
-            InitPolis();
             InitFeathercoin();
             InitGroestlcoin();
             InitViacoin();
+
+            // Disabled because of https://twitter.com/Cryptopia_NZ/status/1085084168852291586
+            //InitPolis();
+            //InitBitcoinplus();
             //InitUfo();
         }
 

BTCPayServer/BTCPayServer.csproj

@@ -2,7 +2,7 @@
   <PropertyGroup>
     <OutputType>Exe</OutputType>
     <TargetFramework>netcoreapp2.1</TargetFramework>
-		<Version>1.0.3.6</Version>
+		<Version>1.0.3.46</Version>
     <NoWarn>NU1701,CA1816,CA1308,CA1810,CA2208</NoWarn>
   </PropertyGroup>
   <PropertyGroup>
@@ -33,11 +33,10 @@
     <EmbeddedResource Include="Currencies.txt" />
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="BTCPayServer.Lightning.All" Version="1.1.0.1" />
+    <PackageReference Include="BTCPayServer.Lightning.All" Version="1.1.0.5" />
     <PackageReference Include="BuildBundlerMinifier" Version="2.7.385" />
     <PackageReference Include="DigitalRuby.ExchangeSharp" Version="0.5.3" />
-    <PackageReference Include="Hangfire" Version="1.6.20" />
-    <PackageReference Include="Hangfire.MemoryStorage" Version="1.5.2" />
+    <PackageReference Include="HtmlSanitizer" Version="4.0.199" />
     <PackageReference Include="LedgerWallet" Version="2.0.0.3" />
     <PackageReference Include="Meziantou.AspNetCore.BundleTagHelpers" Version="2.0.0" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="2.1.4" />
@@ -46,10 +45,10 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="NBitcoin" Version="4.1.1.66" />
-    <PackageReference Include="NBitpayClient" Version="1.0.0.30" />	  
+    <PackageReference Include="NBitcoin" Version="4.1.1.78" />
+    <PackageReference Include="NBitpayClient" Version="1.0.0.31" />	  
     <PackageReference Include="DBreeze" Version="1.92.0" />
-    <PackageReference Include="NBXplorer.Client" Version="1.0.3.5" />
+    <PackageReference Include="NBXplorer.Client" Version="2.0.0.3" />
     <PackageReference Include="NicolasDorier.CommandLine" Version="1.0.0.2" />
     <PackageReference Include="NicolasDorier.CommandLine.Configuration" Version="1.0.0.3" />
     <PackageReference Include="NicolasDorier.RateLimits" Version="1.0.0.3" />
@@ -68,7 +67,7 @@
   </ItemGroup>
 
 	<ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.App" Version="2.1.5" />
+    <PackageReference Include="Microsoft.AspNetCore.App" Version="2.1.6" />
 		<PackageReference Include="YamlDotNet" Version="5.2.1" />
 	</ItemGroup>
 
@@ -126,6 +125,7 @@
 	  <Folder Include="Build\" />
 	  <Folder Include="wwwroot\vendor\clipboard.js\" />
 	  <Folder Include="wwwroot\vendor\highlightjs\" />
+	  <Folder Include="wwwroot\vendor\summernote" />
 	</ItemGroup>
 
 	<ItemGroup>
@@ -133,7 +133,13 @@
       <CopyToPublishDirectory>PreserveNewest</CopyToPublishDirectory>
       <Pack>$(IncludeRazorContentInPack)</Pack>
     </Content>
-    <Content Update="Views\Server\LndRestServices.cshtml">
+    <Content Update="Views\Home\BitpayTranslator.cshtml">
+      <Pack>$(IncludeRazorContentInPack)</Pack>
+    </Content>
+    <Content Update="Views\Server\LightningChargeServices.cshtml">
+      <Pack>$(IncludeRazorContentInPack)</Pack>
+    </Content>
+    <Content Update="Views\Server\SparkServices.cshtml">
       <Pack>$(IncludeRazorContentInPack)</Pack>
     </Content>
     <Content Update="Views\Server\SSHService.cshtml">
@@ -151,7 +157,7 @@
 	  <Content Update="Views\Public\PayButtonHandle.cshtml">
 	    <Pack>$(IncludeRazorContentInPack)</Pack>
 	  </Content>
-	  <Content Update="Views\Server\LndGrpcServices.cshtml">
+	  <Content Update="Views\Server\LndServices.cshtml">
 	    <Pack>$(IncludeRazorContentInPack)</Pack>
 	  </Content>
 	  <Content Update="Views\Server\Maintenance.cshtml">

BTCPayServer/Configuration/BTCPayServerOptions.cs

@@ -16,6 +16,7 @@ using NBitcoin.DataEncoders;
 using BTCPayServer.SSH;
 using BTCPayServer.Lightning;
 using BTCPayServer.Configuration.External;
+using Serilog.Events;
 
 namespace BTCPayServer.Configuration
 {
@@ -37,6 +38,12 @@ namespace BTCPayServer.Configuration
             get;
             private set;
         }
+
+        public string LogFile
+        {
+            get;
+            private set;
+        }
         public string DataDir
         {
             get;
@@ -54,6 +61,22 @@ namespace BTCPayServer.Configuration
             set;
         } = new List<NBXplorerConnectionSetting>();
 
+        public bool DisableRegistration
+        {
+            get;
+            private set;
+        }
+
+        public static string GetDebugLog(IConfiguration configuration)
+        {
+            return configuration.GetValue<string>("debuglog", null);
+        }
+        public static LogEventLevel GetDebugLogLevel(IConfiguration configuration)
+        {
+            var raw = configuration.GetValue("debugloglevel", nameof(LogEventLevel.Debug));
+            return (LogEventLevel)Enum.Parse(typeof(LogEventLevel), raw, true);
+        }
+
         public void LoadArgs(IConfiguration conf)
         {
             NetworkType = DefaultConfiguration.GetNetworkType(conf);
@@ -87,7 +110,7 @@ namespace BTCPayServer.Configuration
                         if (!LightningConnectionString.TryParse(lightning, true, out var connectionString, out var error))
                         {
                             throw new ConfigException($"Invalid setting {net.CryptoCode}.lightning, " + Environment.NewLine +
-                                $"If you have a lightning server use: 'type=clightning;server=/root/.lightning/lightning-rpc', " + Environment.NewLine +
+                                $"If you have a c-lightning server use: 'type=clightning;server=/root/.lightning/lightning-rpc', " + Environment.NewLine +
                                 $"If you have a lightning charge server: 'type=charge;server=https://charge.example.com;api-token=yourapitoken'" + Environment.NewLine +
                                 $"If you have a lnd server: 'type=lnd-rest;server=https://lnd:lnd@lnd.example.com;macaroon=abf239...;certthumbprint=2abdf302...'" + Environment.NewLine +
                                 $"              lnd server: 'type=lnd-rest;server=https://lnd:lnd@lnd.example.com;macaroonfilepath=/root/.lnd/admin.macaroon;certthumbprint=2abdf302...'" + Environment.NewLine +
@@ -95,7 +118,7 @@ namespace BTCPayServer.Configuration
                         }
                         if (connectionString.IsLegacy)
                         {
-                            Logs.Configuration.LogWarning($"Setting {net.CryptoCode}.lightning will work but use an deprecated format, please replace it by '{connectionString.ToString()}'");
+                            Logs.Configuration.LogWarning($"Setting {net.CryptoCode}.lightning is a deprecated format, it will work now, but please replace it for future versions with '{connectionString.ToString()}'");
                         }
                         InternalLightningByCryptoCode.Add(net.CryptoCode, connectionString);
                     }
@@ -120,10 +143,50 @@ namespace BTCPayServer.Configuration
 
                 externalLnd<ExternalLndGrpc>($"{net.CryptoCode}.external.lnd.grpc", "lnd-grpc");
                 externalLnd<ExternalLndRest>($"{net.CryptoCode}.external.lnd.rest", "lnd-rest");
+
+                var spark = conf.GetOrDefault<string>($"{net.CryptoCode}.external.spark", string.Empty);
+                if (spark.Length != 0)
+                {
+                    if (!SparkConnectionString.TryParse(spark, out var connectionString))
+                    {
+                        throw new ConfigException($"Invalid setting {net.CryptoCode}.external.spark, " + Environment.NewLine +
+                            $"Valid example: 'server=https://btcpay.example.com/spark/btc/;cookiefile=/etc/clightning_bitcoin_spark/.cookie'");
+                    }
+                    ExternalServicesByCryptoCode.Add(net.CryptoCode, new ExternalSpark(connectionString));
+                }
+
+                var charge = conf.GetOrDefault<string>($"{net.CryptoCode}.external.charge", string.Empty);
+                if (charge.Length != 0)
+                {
+                    if (!LightningConnectionString.TryParse(charge, false, out var chargeConnectionString, out var chargeError))
+                        LightningConnectionString.TryParse("type=charge;" + charge, false, out chargeConnectionString, out chargeError);
+
+                    if(chargeConnectionString == null || chargeConnectionString.ConnectionType != LightningConnectionType.Charge)
+                    {
+                        throw new ConfigException($"Invalid setting {net.CryptoCode}.external.charge, " + Environment.NewLine +
+                                $"lightning charge server: 'type=charge;server=https://charge.example.com;api-token=2abdf302...'" + Environment.NewLine +
+                                $"lightning charge server: 'type=charge;server=https://charge.example.com;cookiefilepath=/root/.charge/.cookie'" + Environment.NewLine +
+                                chargeError ?? string.Empty);
+                    }
+                    ExternalServicesByCryptoCode.Add(net.CryptoCode, new ExternalCharge(chargeConnectionString));
+                }
             }
 
             Logs.Configuration.LogInformation("Supported chains: " + String.Join(',', supportedChains.ToArray()));
 
+            var services = conf.GetOrDefault<string>("externalservices", null);
+            if (services != null)
+            {
+                foreach (var service in services.Split(new[] { ';', ',' }, StringSplitOptions.RemoveEmptyEntries)
+                                                .Select(p => (p, SeparatorIndex: p.IndexOf(':', StringComparison.OrdinalIgnoreCase)))
+                                                .Where(p => p.SeparatorIndex != -1)
+                                                .Select(p => (Name: p.p.Substring(0, p.SeparatorIndex), 
+                                                              Link: p.p.Substring(p.SeparatorIndex + 1))))
+                {
+                    ExternalServices.AddOrReplace(service.Name, service.Link);
+                }
+            }
+
             PostgresConnectionString = conf.GetOrDefault<string>("postgres", null);
             MySQLConnectionString = conf.GetOrDefault<string>("mysql", null);
             BundleJsCss = conf.GetOrDefault<bool>("bundlejscss", true);
@@ -173,7 +236,16 @@ namespace BTCPayServer.Configuration
                 RootPath = "/" + RootPath;
             var old = conf.GetOrDefault<Uri>("internallightningnode", null);
             if (old != null)
-                throw new ConfigException($"internallightningnode should not be used anymore, use btclightning instead");
+                throw new ConfigException($"internallightningnode is deprecated and should not be used anymore, use btclightning instead");
+
+            LogFile = GetDebugLog(conf);
+            if (!string.IsNullOrEmpty(LogFile))
+            {
+                Logs.Configuration.LogInformation("LogFile: " + LogFile);
+                Logs.Configuration.LogInformation("Log Level: " + GetDebugLogLevel(conf));
+            }
+
+            DisableRegistration = conf.GetOrDefault<bool>("disable-registration", true);
         }
 
         private SSHSettings ParseSSHConfiguration(IConfiguration conf)
@@ -224,6 +296,8 @@ namespace BTCPayServer.Configuration
 
         public string RootPath { get; set; }
         public Dictionary<string, LightningConnectionString> InternalLightningByCryptoCode { get; set; } = new Dictionary<string, LightningConnectionString>();
+        public Dictionary<string, string> ExternalServices { get; set; } = new Dictionary<string, string>();
+
         public ExternalServices ExternalServicesByCryptoCode { get; set; } = new ExternalServices();
 
         public BTCPayNetworkProvider NetworkProvider { get; set; }

BTCPayServer/Configuration/DefaultConfiguration.cs

@@ -33,6 +33,7 @@ namespace BTCPayServer.Configuration
             app.Option("--postgres", $"Connection string to a PostgreSQL database (default: SQLite)", CommandOptionType.SingleValue);
             app.Option("--mysql", $"Connection string to a MySQL database (default: SQLite)", 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("--externalservices", $"Links added to external services inside Server Settings / Services under the format service1:path2;service2:path2.(default: empty)", CommandOptionType.SingleValue);
             app.Option("--bundlejscss", $"Bundle JavaScript and CSS files for better performance (default: true)", CommandOptionType.SingleValue);
             app.Option("--rootpath", "The root path in the URL to access BTCPay (default: /)", CommandOptionType.SingleValue);
             app.Option("--sshconnection", "SSH server to manage BTCPay under the form user@server:port (default: root@externalhost or empty)", CommandOptionType.SingleValue);
@@ -41,6 +42,8 @@ namespace BTCPayServer.Configuration
             app.Option("--sshkeyfilepassword", "Password of the SSH keyfile (default: empty)", CommandOptionType.SingleValue);
             app.Option("--sshtrustedfingerprints", "SSH Host public key fingerprint or sha256 (default: empty, it will allow untrusted connections)", CommandOptionType.SingleValue);
             app.Option("--debuglog", "A rolling log file for debug messages.", CommandOptionType.SingleValue);
+            app.Option("--debugloglevel", "The severity you log (default:information)", CommandOptionType.SingleValue);
+            app.Option("--disable-registration", "Disables new user registrations (default:true)", CommandOptionType.SingleValue);
             foreach (var network in provider.GetAll())
             {
                 var crypto = network.CryptoCode.ToLowerInvariant();
@@ -48,6 +51,8 @@ namespace BTCPayServer.Configuration
                 app.Option($"--{crypto}explorercookiefile", $"Path to the cookie file (default: {network.NBXplorerNetwork.DefaultSettings.DefaultCookieFile})", CommandOptionType.SingleValue);
                 app.Option($"--{crypto}lightning", $"Easy configuration of lightning for the server administrator: Must be a UNIX socket of c-lightning (lightning-rpc) or URL to a charge server (default: empty)", CommandOptionType.SingleValue);
                 app.Option($"--{crypto}externallndgrpc", $"The LND gRPC configuration BTCPay will expose to easily connect to the internal lnd wallet from Zap wallet (default: empty)", CommandOptionType.SingleValue);
+                app.Option($"--{crypto}externalspark", $"Show spark information in Server settings / Server. The connection string to spark server (default: empty)", CommandOptionType.SingleValue);
+                app.Option($"--{crypto}externalcharge", $"Show lightning charge information in Server settings/Server. The connection string to charge server (default: empty)", CommandOptionType.SingleValue);
             }
             return app;
         }

BTCPayServer/Configuration/External/ExternalCharge.cs

@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using BTCPayServer.Lightning;
+
+namespace BTCPayServer.Configuration.External
+{
+    public class ExternalCharge : ExternalService
+    {
+        public ExternalCharge(LightningConnectionString connectionString)
+        {
+            if (connectionString == null)
+                throw new ArgumentNullException(nameof(connectionString));
+            ConnectionString = connectionString;
+        }
+        public LightningConnectionString ConnectionString { get; }
+    }
+}

BTCPayServer/Configuration/External/ExternalLnd.cs

@@ -8,28 +8,23 @@ namespace BTCPayServer.Configuration.External
 {
     public abstract class ExternalLnd : ExternalService
     {
-        public ExternalLnd(LightningConnectionString connectionString, LndTypes type)
+        public ExternalLnd(LightningConnectionString connectionString, string type)
         {
             ConnectionString = connectionString;
             Type = type;
         }
 
-        public LndTypes Type { get; set; }
+        public string Type { get; set; }
         public LightningConnectionString ConnectionString { get; set; }
     }
 
-    public enum LndTypes
-    {
-        gRPC, Rest
-    }
-
     public class ExternalLndGrpc : ExternalLnd
     {
-        public ExternalLndGrpc(LightningConnectionString connectionString) : base(connectionString, LndTypes.gRPC) { }
+        public ExternalLndGrpc(LightningConnectionString connectionString) : base(connectionString, "lnd-grpc") { }
     }
 
     public class ExternalLndRest : ExternalLnd
     {
-        public ExternalLndRest(LightningConnectionString connectionString) : base(connectionString, LndTypes.Rest) { }
+        public ExternalLndRest(LightningConnectionString connectionString) : base(connectionString, "lnd-rest") { }
     }
 }

BTCPayServer/Configuration/External/ExternalSpark.cs

@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace BTCPayServer.Configuration.External
+{
+    public class ExternalSpark : ExternalService
+    {
+        public SparkConnectionString ConnectionString { get; }
+
+        public ExternalSpark(SparkConnectionString connectionString)
+        {
+            if (connectionString == null)
+                throw new ArgumentNullException(nameof(connectionString));
+            ConnectionString = connectionString;
+        }
+    }
+}

BTCPayServer/Configuration/SparkConnectionString.cs

@@ -0,0 +1,47 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace BTCPayServer.Configuration
+{
+    public class SparkConnectionString
+    {
+        public Uri Server { get; private set; }
+        public string CookeFile { get; private set; }
+
+        public static bool TryParse(string str, out SparkConnectionString result)
+        {
+            if (str == null)
+                throw new ArgumentNullException(nameof(str));
+
+            result = null;
+            var resultTemp = new SparkConnectionString();
+            foreach(var kv in str.Split(';')
+                        .Select(part => part.Split('='))
+                        .Where(kv => kv.Length == 2))
+            {
+                switch (kv[0].ToLowerInvariant())
+                {
+                    case "server":
+                        if (resultTemp.Server != null)
+                            return false;
+                        if (!Uri.IsWellFormedUriString(kv[1], UriKind.Absolute))
+                            return false;
+                        resultTemp.Server = new Uri(kv[1], UriKind.Absolute);
+                        break;
+                    case "cookiefile":
+                    case "cookiefilepath":
+                        if (resultTemp.CookeFile != null)
+                            return false;
+                        resultTemp.CookeFile = kv[1];
+                        break;
+                    default:
+                        return false;
+                }
+            }
+            result = resultTemp;
+            return true;
+        }
+    }
+}

BTCPayServer/Controllers/AccountController.cs

@@ -28,10 +28,11 @@ namespace BTCPayServer.Controllers
     {
         private readonly UserManager<ApplicationUser> _userManager;
         private readonly SignInManager<ApplicationUser> _signInManager;
-        private readonly IEmailSender _emailSender;
+        private readonly EmailSenderFactory _EmailSenderFactory;
         StoreRepository storeRepository;
         RoleManager<IdentityRole> _RoleManager;
         SettingsRepository _SettingsRepository;
+        Configuration.BTCPayServerOptions _Options;
         ILogger _logger;
 
         public AccountController(
@@ -39,15 +40,17 @@ namespace BTCPayServer.Controllers
             RoleManager<IdentityRole> roleManager,
             StoreRepository storeRepository,
             SignInManager<ApplicationUser> signInManager,
-            IEmailSender emailSender,
-            SettingsRepository settingsRepository)
+            EmailSenderFactory emailSenderFactory,
+            SettingsRepository settingsRepository,
+            Configuration.BTCPayServerOptions options)
         {
             this.storeRepository = storeRepository;
             _userManager = userManager;
             _signInManager = signInManager;
-            _emailSender = emailSender;
+            _EmailSenderFactory = emailSenderFactory;
             _RoleManager = roleManager;
             _SettingsRepository = settingsRepository;
+            _Options = options;
             _logger = Logs.PayServer;
         }
 
@@ -271,12 +274,20 @@ namespace BTCPayServer.Controllers
                     {
                         await _RoleManager.CreateAsync(new IdentityRole(Roles.ServerAdmin));
                         await _userManager.AddToRoleAsync(user, Roles.ServerAdmin);
+
+                        if(_Options.DisableRegistration)
+                        {
+                            // Once the admin user has been created lock subsequent user registrations (needs to be disabled for unit tests that require multiple users).
+                            policies.LockSubscription = true;
+                            await _SettingsRepository.UpdateSetting(policies);
+                        }
                     }
 
                     var code = await _userManager.GenerateEmailConfirmationTokenAsync(user);
                     var callbackUrl = Url.EmailConfirmationLink(user.Id, code, Request.Scheme);
                     RegisteredUserId = user.Id;
-                    await _emailSender.SendEmailConfirmationAsync(model.Email, callbackUrl);
+
+                    _EmailSenderFactory.GetEmailSender().SendEmailConfirmation(model.Email, callbackUrl);
                     if (!policies.RequiresConfirmedEmail)
                     {
                         if(logon)
@@ -436,8 +447,9 @@ namespace BTCPayServer.Controllers
                 // visit https://go.microsoft.com/fwlink/?LinkID=532713
                 var code = await _userManager.GeneratePasswordResetTokenAsync(user);
                 var callbackUrl = Url.ResetPasswordCallbackLink(user.Id, code, Request.Scheme);
-                await _emailSender.SendEmailAsync(model.Email, "Reset Password",
-                   $"Please reset your password by clicking here: <a href='{callbackUrl}'>link</a>");
+                _EmailSenderFactory.GetEmailSender().SendEmail(model.Email, "Reset Password",
+                    $"Please reset your password by clicking here: <a href='{callbackUrl}'>link</a>");
+                
                 return RedirectToAction(nameof(ForgotPasswordConfirmation));
             }
 

BTCPayServer/Controllers/AppsController.Crowdfund.cs

@@ -0,0 +1,171 @@
+using System;
+using System.Text;
+using System.Text.Encodings.Web;
+using System.Threading.Tasks;
+using BTCPayServer.Models.AppViewModels;
+using BTCPayServer.Services.Apps;
+using Microsoft.AspNetCore.Mvc;
+
+namespace BTCPayServer.Controllers
+{
+    public partial class AppsController
+    {
+        public class CrowdfundAppUpdated
+        {
+            public string AppId { get; set; }
+            public CrowdfundSettings Settings { get; set; }
+            public string StoreId { get; set; }
+        }
+        
+        public class CrowdfundSettings
+        {
+            public string Title { get; set; }
+            public string Description { get; set; }
+            public bool Enabled { get; set; } = false;
+        
+            public DateTime? StartDate { get; set; }
+            public DateTime? EndDate { get; set; }
+        
+            public string TargetCurrency { get; set; }
+            public decimal? TargetAmount { get; set; }
+        
+            public bool EnforceTargetAmount { get; set; }
+            public string CustomCSSLink { get; set; }
+            public string MainImageUrl { get; set; }
+            public string NotificationUrl { get; set; }
+            public string Tagline { get; set; }
+            public string EmbeddedCSS { get; set; }
+            public string PerksTemplate { get; set; }
+            public bool DisqusEnabled { get; set; }= false;
+            public bool SoundsEnabled { get; set; }= true;
+            public string DisqusShortname { get; set; }
+            public bool AnimationsEnabled { get; set; } = true;
+            public bool UseInvoiceAmount { get; set; } = true;
+            public int ResetEveryAmount { get; set; } = 1;
+            public CrowdfundResetEvery ResetEvery { get; set; } = CrowdfundResetEvery.Never;
+            public bool UseAllStoreInvoices { get; set; }
+            public bool DisplayPerksRanking { get; set; }
+            public bool SortPerksByPopularity { get; set; }
+        }
+        
+        
+        [HttpGet]
+        [Route("{appId}/settings/crowdfund")]
+        public async Task<IActionResult> UpdateCrowdfund(string appId)
+        {
+            var app = await GetOwnedApp(appId, AppType.Crowdfund);
+            if (app == null)
+                return NotFound();
+            var settings = app.GetSettings<CrowdfundSettings>();
+            var vm = new UpdateCrowdfundViewModel()
+            {
+                Title = settings.Title,
+                Enabled = settings.Enabled,
+                EnforceTargetAmount = settings.EnforceTargetAmount,
+                StartDate = settings.StartDate,
+                TargetCurrency = settings.TargetCurrency,
+                Description = settings.Description,
+                MainImageUrl = settings.MainImageUrl,
+                EmbeddedCSS = settings.EmbeddedCSS,
+                EndDate = settings.EndDate,
+                TargetAmount = settings.TargetAmount,
+                CustomCSSLink = settings.CustomCSSLink,
+                NotificationUrl = settings.NotificationUrl,
+                Tagline = settings.Tagline,
+                PerksTemplate = settings.PerksTemplate,
+                DisqusEnabled = settings.DisqusEnabled,
+                SoundsEnabled = settings.SoundsEnabled,
+                DisqusShortname = settings.DisqusShortname,
+                AnimationsEnabled = settings.AnimationsEnabled,
+                UseInvoiceAmount = settings.UseInvoiceAmount,
+                ResetEveryAmount = settings.ResetEveryAmount,
+                ResetEvery = Enum.GetName(typeof(CrowdfundResetEvery), settings.ResetEvery),
+                UseAllStoreInvoices = settings.UseAllStoreInvoices,
+                AppId = appId,
+                DisplayPerksRanking = settings.DisplayPerksRanking,
+                SortPerksByPopularity = settings.SortPerksByPopularity
+            };
+            return View(vm);
+        }
+        [HttpPost]
+        [Route("{appId}/settings/crowdfund")]
+        public async Task<IActionResult> UpdateCrowdfund(string appId, UpdateCrowdfundViewModel vm)
+        {
+            if (!string.IsNullOrEmpty( vm.TargetCurrency) && _AppsHelper.GetCurrencyData(vm.TargetCurrency, false) == null)
+                ModelState.AddModelError(nameof(vm.TargetCurrency), "Invalid currency");
+          
+            try
+            {
+                _AppsHelper.Parse(vm.PerksTemplate, vm.TargetCurrency).ToString();
+            }
+            catch
+            {
+                ModelState.AddModelError(nameof(vm.PerksTemplate), "Invalid template");
+            }
+
+            if (Enum.Parse<CrowdfundResetEvery>(vm.ResetEvery) != CrowdfundResetEvery.Never && !vm.StartDate.HasValue)
+            {
+                ModelState.AddModelError(nameof(vm.StartDate), "A start date is needed when the goal resets every X amount of time.");
+            }
+
+            if (Enum.Parse<CrowdfundResetEvery>(vm.ResetEvery) != CrowdfundResetEvery.Never && vm.ResetEveryAmount <= 0)
+            {
+                ModelState.AddModelError(nameof(vm.ResetEveryAmount), "You must reset the goal at a minimum of 1 ");
+            }
+
+            if (vm.DisplayPerksRanking && !vm.SortPerksByPopularity)
+            {
+                ModelState.AddModelError(nameof(vm.DisplayPerksRanking), "You must sort by popularity in order to display ranking.");
+            }
+            
+            if (!ModelState.IsValid)
+            {
+                return View(vm);
+            }
+            
+            
+            var app = await GetOwnedApp(appId, AppType.Crowdfund);
+            if (app == null)
+                return NotFound();
+
+            var newSettings = new CrowdfundSettings()
+            {
+                Title = vm.Title,
+                Enabled = vm.Enabled,
+                EnforceTargetAmount = vm.EnforceTargetAmount,
+                StartDate = vm.StartDate,
+                TargetCurrency = vm.TargetCurrency,
+                Description = _AppsHelper.Sanitize( vm.Description),
+                EndDate = vm.EndDate,
+                TargetAmount = vm.TargetAmount,
+                CustomCSSLink = vm.CustomCSSLink,
+                MainImageUrl = vm.MainImageUrl,
+                EmbeddedCSS = vm.EmbeddedCSS,
+                NotificationUrl = vm.NotificationUrl,
+                Tagline = vm.Tagline,
+                PerksTemplate = vm.PerksTemplate,
+                DisqusEnabled = vm.DisqusEnabled,
+                SoundsEnabled = vm.SoundsEnabled,
+                DisqusShortname = vm.DisqusShortname,
+                AnimationsEnabled = vm.AnimationsEnabled,
+                ResetEveryAmount = vm.ResetEveryAmount,
+                ResetEvery = Enum.Parse<CrowdfundResetEvery>(vm.ResetEvery),
+                UseInvoiceAmount = vm.UseInvoiceAmount,
+                UseAllStoreInvoices = vm.UseAllStoreInvoices,
+                DisplayPerksRanking = vm.DisplayPerksRanking,
+                SortPerksByPopularity = vm.SortPerksByPopularity
+            };
+            
+            app.SetSettings(newSettings);
+            await UpdateAppSettings(app);
+            _EventAggregator.Publish(new CrowdfundAppUpdated()
+            {
+                AppId = appId,
+                StoreId = app.StoreDataId,
+                Settings = newSettings
+            });
+            StatusMessage = "App updated";
+            return RedirectToAction(nameof(UpdateCrowdfund), new {appId});
+        }
+    }
+}

BTCPayServer/Controllers/AppsController.PointOfSale.cs

@@ -1,5 +1,8 @@
-using System.Text;
+using System;
+using System.Linq;
+using System.Text;
 using System.Text.Encodings.Web;
+using System.Text.RegularExpressions;
 using System.Threading.Tasks;
 using BTCPayServer.Data;
 using BTCPayServer.Models.AppViewModels;
@@ -15,28 +18,61 @@ namespace BTCPayServer.Controllers
         {
             public PointOfSaleSettings()
             {
-                Title = "My awesome Point of Sale";
+                Title = "Tea shop";
                 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";
+                    "green tea:\n" +
+                    "  price: 1\n" +
+                    "  title: Green Tea\n" +
+                    "  description:  Lovely, fresh and tender, Meng Ding Gan Lu ('sweet dew') is grown in the lush Meng Ding Mountains of the southwestern province of Sichuan where it has been cultivated for over a thousand years.\n" +
+                    "  image: https://cdn.pixabay.com/photo/2015/03/26/11/03/green-tea-692339__480.jpg\n\n" +
+                    "black tea:\n" +
+                    "  price: 1\n" +
+                    "  title: Black Tea\n" +
+                    "  description: Tian Jian Tian Jian means 'heavenly tippy tea' in Chinese, and it describes the finest grade of dark tea. Our Tian Jian dark tea is from Hunan province which is famous for making some of the best dark teas available.\n" +
+                    "  image: https://cdn.pixabay.com/photo/2016/11/29/13/04/beverage-1869716__480.jpg\n\n" +
+                    "rooibos:\n" +
+                    "  price: 1.2\n" +
+                    "  title: Rooibos\n" +
+                    "  description: Rooibos is a dramatic red tea made from a South African herb that contains polyphenols and flavonoids. Often called 'African redbush tea', Rooibos herbal tea delights the senses and delivers potential health benefits with each caffeine-free sip.\n" +
+                    "  image: https://cdn.pixabay.com/photo/2017/01/08/08/14/water-1962388__480.jpg\n\n" +
+                    "pu erh:\n" +
+                    "  price: 2\n" +
+                    "  title: Pu Erh\n" +
+                    "  description: This loose pur-erh tea is produced in Yunnan Province, China. The process in a relatively high humidity environment has mellowed the elemental character of the tea when compared to young Pu-erh.\n" +
+                    "  image: https://cdn.pixabay.com/photo/2018/07/21/16/56/tea-cup-3552917__480.jpg\n\n" +
+                    "herbal tea:\n" +
+                    "  price: 1.8\n" +
+                    "  title: Herbal Tea\n" +
+                    "  description: Chamomile tea is made from the flower heads of the chamomile plant. The medicinal use of chamomile dates back to the ancient Egyptians, Romans and Greeks. Pay us what you want!\n" +
+                    "  image: https://cdn.pixabay.com/photo/2015/07/02/20/57/chamomile-829538__480.jpg\n" +
+                    "  custom: true\n\n" +
+                    "fruit tea:\n" +
+                    "  price: 1.5\n" +
+                    "  title: Fruit Tea\n" +
+                    "  description: The Tibetan Himalayas, the land is majestic and beautiful—a spiritual place where, despite the perilous environment, many journey seeking enlightenment. Pay us what you want!\n" +
+                    "  image: https://cdn.pixabay.com/photo/2016/09/16/11/24/darts-1673812__480.jpg\n" +
+                    "  custom: true";
+                EnableShoppingCart = false;
                 ShowCustomAmount = true;
             }
             public string Title { get; set; }
             public string Currency { get; set; }
             public string Template { get; set; }
+            public bool EnableShoppingCart { get; set; }
             public bool ShowCustomAmount { get; set; }
+
+            public const string BUTTON_TEXT_DEF = "Buy for {0}";
+            public string ButtonText { get; set; } = BUTTON_TEXT_DEF;
+            public const string CUSTOM_BUTTON_TEXT_DEF = "Pay";
+            public string CustomButtonText { get; set; } = CUSTOM_BUTTON_TEXT_DEF;
+            public const string CUSTOM_TIP_TEXT_DEF = "Do you want to leave a tip?";
+            public string CustomTipText { get; set; } = CUSTOM_TIP_TEXT_DEF;
+            public static readonly int[] CUSTOM_TIP_PERCENTAGES_DEF = new int[] { 15, 18, 20 };
+            public int[] CustomTipPercentages { get; set; } = CUSTOM_TIP_PERCENTAGES_DEF;
+
+
+            public string CustomCSSLink { get; set; }
         }
 
         [HttpGet]
@@ -50,9 +86,15 @@ namespace BTCPayServer.Controllers
             var vm = new UpdatePointOfSaleViewModel()
             {
                 Title = settings.Title,
+                EnableShoppingCart = settings.EnableShoppingCart,
                 ShowCustomAmount = settings.ShowCustomAmount,
                 Currency = settings.Currency,
-                Template = settings.Template
+                Template = settings.Template,
+                ButtonText = settings.ButtonText ?? PointOfSaleSettings.BUTTON_TEXT_DEF,
+                CustomButtonText = settings.CustomButtonText ?? PointOfSaleSettings.CUSTOM_BUTTON_TEXT_DEF,
+                CustomTipText = settings.CustomTipText ?? PointOfSaleSettings.CUSTOM_TIP_TEXT_DEF,
+                CustomTipPercentages = settings.CustomTipPercentages != null ? string.Join(",", settings.CustomTipPercentages) : string.Join(",", PointOfSaleSettings.CUSTOM_TIP_PERCENTAGES_DEF),
+                CustomCSSLink = settings.CustomCSSLink
             };
             if (HttpContext?.Request != null)
             {
@@ -115,9 +157,15 @@ namespace BTCPayServer.Controllers
             app.SetSettings(new PointOfSaleSettings()
             {
                 Title = vm.Title,
+                EnableShoppingCart = vm.EnableShoppingCart,
                 ShowCustomAmount = vm.ShowCustomAmount,
                 Currency = vm.Currency.ToUpperInvariant(),
-                Template = vm.Template
+                Template = vm.Template,
+                ButtonText = vm.ButtonText,
+                CustomButtonText = vm.CustomButtonText,
+                CustomTipText = vm.CustomTipText,
+                CustomTipPercentages = ListSplit(vm.CustomTipPercentages),
+                CustomCSSLink = vm.CustomCSSLink
             });
             await UpdateAppSettings(app);
             StatusMessage = "App updated";
@@ -134,5 +182,21 @@ namespace BTCPayServer.Controllers
                 await ctx.SaveChangesAsync();
             }
         }
+
+        private int[] ListSplit(string list, string separator = ",")
+        {
+            if (string.IsNullOrEmpty(list))
+            {
+                return Array.Empty<int>();
+            } 
+            else 
+            {
+                // Remove all characters except numeric and comma
+                Regex charsToDestroy = new Regex(@"[^\d|\" + separator + "]");
+                list = charsToDestroy.Replace(list, "");
+
+                return list.Split(separator, System.StringSplitOptions.RemoveEmptyEntries).Select(int.Parse).ToArray();
+            }
+        }
     }
 }

BTCPayServer/Controllers/AppsController.cs

@@ -24,17 +24,20 @@ namespace BTCPayServer.Controllers
         public AppsController(
             UserManager<ApplicationUser> userManager,
             ApplicationDbContextFactory contextFactory,
+            EventAggregator eventAggregator,
             BTCPayNetworkProvider networkProvider,
             AppsHelper appsHelper)
         {
             _UserManager = userManager;
             _ContextFactory = contextFactory;
+            _EventAggregator = eventAggregator;
             _NetworkProvider = networkProvider;
             _AppsHelper = appsHelper;
         }
 
         private UserManager<ApplicationUser> _UserManager;
         private ApplicationDbContextFactory _ContextFactory;
+        private readonly EventAggregator _EventAggregator;
         private BTCPayNetworkProvider _NetworkProvider;
         private AppsHelper _AppsHelper;
 
@@ -44,7 +47,7 @@ namespace BTCPayServer.Controllers
 
         public async Task<IActionResult> ListApps()
         {
-            var apps = await GetAllApps();
+            var apps = await _AppsHelper.GetAllApps(GetUserId());
             return View(new ListAppsViewModel()
             {
                 Apps = apps
@@ -58,7 +61,7 @@ namespace BTCPayServer.Controllers
             var appData = await GetOwnedApp(appId);
             if (appData == null)
                 return NotFound();
-            if (await DeleteApp(appData))
+            if (await _AppsHelper.DeleteApp(appData))
                 StatusMessage = "App removed successfully";
             return RedirectToAction(nameof(ListApps));
         }
@@ -67,7 +70,7 @@ namespace BTCPayServer.Controllers
         [Route("create")]
         public async Task<IActionResult> CreateApp()
         {
-            var stores = await GetOwnedStores();
+            var stores = await _AppsHelper.GetOwnedStores(GetUserId());
             if (stores.Length == 0)
             {
                 StatusMessage = "Error: You must have created at least one store";
@@ -82,7 +85,7 @@ namespace BTCPayServer.Controllers
         [Route("create")]
         public async Task<IActionResult> CreateApp(CreateAppViewModel vm)
         {
-            var stores = await GetOwnedStores();
+            var stores = await _AppsHelper.GetOwnedStores(GetUserId());
             if (stores.Length == 0)
             {
                 StatusMessage = "Error: You must own at least one store";
@@ -117,9 +120,17 @@ namespace BTCPayServer.Controllers
             }
             StatusMessage = "App successfully created";
             CreatedAppId = id;
-            if (appType == AppType.PointOfSale)
-                return RedirectToAction(nameof(UpdatePointOfSale), new { appId = id });
-            return RedirectToAction(nameof(ListApps));
+
+            switch (appType)
+            {
+                case AppType.PointOfSale:
+                    return RedirectToAction(nameof(UpdatePointOfSale), new { appId = id });
+                case AppType.Crowdfund:
+                    return RedirectToAction(nameof(UpdateCrowdfund), new { appId = id });
+                default:
+                    return RedirectToAction(nameof(ListApps));
+            }
+                
         }
 
         [HttpGet]
@@ -142,50 +153,7 @@ namespace BTCPayServer.Controllers
             return _AppsHelper.GetAppDataIfOwner(GetUserId(), appId, type);
         }
 
-        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)
-                    .Join(ctx.Apps, us => us.StoreDataId, app => app.StoreDataId,
-                    (us, app) =>
-                    new ListAppsViewModel.ListAppViewModel()
-                    {
-                        IsOwner = us.Role == StoreRoles.Owner,
-                        StoreId = us.StoreDataId,
-                        StoreName = us.StoreData.StoreName,
-                        AppName = app.Name,
-                        AppType = app.AppType,
-                        Id = app.Id
-                    })
-                    .ToArrayAsync();
-            }
-        }
-
+        
         private string GetUserId()
         {
             return _UserManager.GetUserId(User);

BTCPayServer/Controllers/AppsPublicController.cs

@@ -1,18 +1,31 @@
 using System;
+using System.Collections.Generic;
+using System.Diagnostics;
 using System.Globalization;
 using System.IO;
 using System.Linq;
 using System.Security.Claims;
 using System.Threading.Tasks;
+using BTCPayServer.Crowdfund;
 using BTCPayServer.Data;
+using BTCPayServer.Filters;
+using BTCPayServer.Hubs;
+using BTCPayServer.Models;
 using BTCPayServer.Models.AppViewModels;
+using BTCPayServer.Rating;
 using BTCPayServer.Security;
 using BTCPayServer.Services.Apps;
+using BTCPayServer.Services.Invoices;
 using BTCPayServer.Services.Rates;
+using Ganss.XSS;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Cors;
+using Microsoft.AspNetCore.Http.Extensions;
+using Microsoft.AspNetCore.Identity;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.EntityFrameworkCore;
+using NBitpayClient;
+using Newtonsoft.Json.Linq;
 using YamlDotNet.RepresentationModel;
 using static BTCPayServer.Controllers.AppsController;
 
@@ -20,34 +33,175 @@ namespace BTCPayServer.Controllers
 {
     public class AppsPublicController : Controller
     {
-        public AppsPublicController(AppsHelper appsHelper, InvoiceController invoiceController)
+        public AppsPublicController(AppsHelper appsHelper, 
+            InvoiceController invoiceController, 
+            CrowdfundHubStreamer crowdfundHubStreamer, UserManager<ApplicationUser> userManager)
         {
             _AppsHelper = appsHelper;
             _InvoiceController = invoiceController;
+            _CrowdfundHubStreamer = crowdfundHubStreamer;
+            _UserManager = userManager;
         }
 
         private AppsHelper _AppsHelper;
         private InvoiceController _InvoiceController;
+        private readonly CrowdfundHubStreamer _CrowdfundHubStreamer;
+        private readonly UserManager<ApplicationUser> _UserManager;
 
         [HttpGet]
         [Route("/apps/{appId}/pos")]
+        [XFrameOptionsAttribute(null)]
         public async Task<IActionResult> ViewPointOfSale(string appId)
         {
             var app = await _AppsHelper.GetApp(appId, AppType.PointOfSale);
             if (app == null)
                 return NotFound();
             var settings = app.GetSettings<PointOfSaleSettings>();
-            var currency = _AppsHelper.GetCurrencyData(settings.Currency, false);
-            double step = currency == null ? 1 : Math.Pow(10, -(currency.Divisibility));
+
+            var numberFormatInfo = _AppsHelper.Currencies.GetNumberFormatInfo(settings.Currency) ?? _AppsHelper.Currencies.GetNumberFormatInfo("USD");
+            double step = Math.Pow(10, -(numberFormatInfo.CurrencyDecimalDigits));
 
             return View(new ViewPointOfSaleViewModel()
             {
                 Title = settings.Title,
                 Step = step.ToString(CultureInfo.InvariantCulture),
+                EnableShoppingCart = settings.EnableShoppingCart,
                 ShowCustomAmount = settings.ShowCustomAmount,
-                Items = _AppsHelper.Parse(settings.Template, settings.Currency)
+                CurrencyCode = settings.Currency,
+                CurrencySymbol = numberFormatInfo.CurrencySymbol,
+                CurrencyInfo = new ViewPointOfSaleViewModel.CurrencyInfoData()
+                {
+                    CurrencySymbol = string.IsNullOrEmpty(numberFormatInfo.CurrencySymbol) ? settings.Currency : numberFormatInfo.CurrencySymbol,
+                    Divisibility = numberFormatInfo.CurrencyDecimalDigits,
+                    DecimalSeparator = numberFormatInfo.CurrencyDecimalSeparator,
+                    ThousandSeparator = numberFormatInfo.NumberGroupSeparator,
+                    Prefixed = new[] { 0, 2 }.Contains(numberFormatInfo.CurrencyPositivePattern),
+                    SymbolSpace = new[] { 2, 3 }.Contains(numberFormatInfo.CurrencyPositivePattern)
+                },
+                Items = _AppsHelper.Parse(settings.Template, settings.Currency),
+                ButtonText = settings.ButtonText,
+                CustomButtonText = settings.CustomButtonText,
+                CustomTipText = settings.CustomTipText,
+                CustomTipPercentages = settings.CustomTipPercentages,
+                CustomCSSLink = settings.CustomCSSLink,
+                AppId = appId
             });
         }
+        
+        
+        [HttpGet]
+        [Route("/apps/{appId}/crowdfund")]
+        [XFrameOptionsAttribute(null)]
+        public async Task<IActionResult> ViewCrowdfund(string appId, string statusMessage)
+        
+        {
+            var app = await _AppsHelper.GetApp(appId, AppType.Crowdfund, true);
+            
+            if (app == null)
+                return NotFound();
+            var settings = app.GetSettings<CrowdfundSettings>();
+            
+            var isAdmin = await _AppsHelper.GetAppDataIfOwner(GetUserId(), appId, AppType.Crowdfund) != null;
+            
+            var hasEnoughSettingsToLoad = !string.IsNullOrEmpty(settings.TargetCurrency );
+            if (!hasEnoughSettingsToLoad)
+            {
+                if(!isAdmin)
+                    return NotFound();
+
+                return NotFound("A Target Currency must be set for this app in order to be loadable.");
+            }
+            if (settings.Enabled) return View(await _CrowdfundHubStreamer.GetCrowdfundInfo(appId));
+            if(!isAdmin)
+                return NotFound();
+
+            return View(await _CrowdfundHubStreamer.GetCrowdfundInfo(appId));
+        }
+
+        [HttpPost]
+        [Route("/apps/{appId}/crowdfund")]
+        [XFrameOptionsAttribute(null)]
+        [IgnoreAntiforgeryToken]
+        [EnableCors(CorsPolicies.All)]
+        public async Task<IActionResult> ContributeToCrowdfund(string appId, ContributeToCrowdfund request)
+        {
+            var app = await _AppsHelper.GetApp(appId, AppType.Crowdfund, true);
+            
+            if (app == null)
+                return NotFound();
+            var settings = app.GetSettings<CrowdfundSettings>();
+            
+           
+            var isAdmin = await _AppsHelper.GetAppDataIfOwner(GetUserId(), appId, AppType.Crowdfund) != null;
+ 
+            if (!settings.Enabled)
+            {
+                if(!isAdmin)
+                    return NotFound("Crowdfund is not currently active");
+            }
+
+            var info = await _CrowdfundHubStreamer.GetCrowdfundInfo(appId);
+            
+            if(!isAdmin && 
+               
+               ((settings.StartDate.HasValue && DateTime.Now  < settings.StartDate) || 
+                (settings.EndDate.HasValue && DateTime.Now  > settings.EndDate) || 
+                (settings.EnforceTargetAmount && 
+                    (info.Info.PendingProgressPercentage.GetValueOrDefault(0) + 
+                     info.Info.ProgressPercentage.GetValueOrDefault(0)) >= 100)))
+            {
+                return NotFound("Crowdfund is not currently active");
+            }
+
+            var store = await _AppsHelper.GetStore(app);
+            var title =  settings.Title;
+            var price = request.Amount;
+            ViewPointOfSaleViewModel.Item choice = null;
+            if (!string.IsNullOrEmpty(request.ChoiceKey))
+            {
+                var choices = _AppsHelper.Parse(settings.PerksTemplate, settings.TargetCurrency);
+                choice = choices.FirstOrDefault(c => c.Id == request.ChoiceKey);
+                if (choice == null)
+                    return NotFound("Incorrect option provided");
+                title = choice.Title;
+                price = choice.Price.Value;
+                if (request.Amount > price)
+                    price = request.Amount;
+            }
+
+            if (!isAdmin && (settings.EnforceTargetAmount && info.TargetAmount.HasValue && price >
+                (info.TargetAmount - (info.Info.CurrentAmount + info.Info.CurrentPendingAmount))))
+            {
+                return NotFound("Contribution Amount is more than is currently allowed.");
+            }
+            
+            store.AdditionalClaims.Add(new Claim(Policies.CanCreateInvoice.Key, store.Id));
+            var invoice = await _InvoiceController.CreateInvoiceCore(new Invoice()
+            {
+                OrderId = $"{CrowdfundHubStreamer.CrowdfundInvoiceOrderIdPrefix}{appId}",
+                Currency = settings.TargetCurrency,
+                ItemCode = request.ChoiceKey ?? string.Empty,
+                ItemDesc = title,
+                BuyerEmail = request.Email,
+                Price = price,
+                NotificationURL = settings.NotificationUrl,
+                FullNotifications = true,
+                ExtendedNotifications = true,
+                RedirectURL = request.RedirectUrl ?? Request.GetDisplayUrl(),
+                
+                
+            }, store, HttpContext.Request.GetAbsoluteRoot());
+            if (request.RedirectToCheckout)
+            {
+                return RedirectToAction(nameof(InvoiceController.Checkout), "Invoice",
+                    new {invoiceId = invoice.Data.Id});
+            }
+            else
+            {
+                return Ok(invoice.Data.Id);
+            }
+        }
+        
 
         [HttpPost]
         [Route("/apps/{appId}/pos")]
@@ -59,7 +213,8 @@ namespace BTCPayServer.Controllers
                                                         string orderId,
                                                         string notificationUrl,
                                                         string redirectUrl,
-                                                        string choiceKey)
+                                                        string choiceKey,
+                                                        string posData = null)
         {
             var app = await _AppsHelper.GetApp(appId, AppType.PointOfSale);
             if (string.IsNullOrEmpty(choiceKey) && amount <= 0)
@@ -69,24 +224,27 @@ namespace BTCPayServer.Controllers
             if (app == null)
                 return NotFound();
             var settings = app.GetSettings<PointOfSaleSettings>();
-            if (string.IsNullOrEmpty(choiceKey) && !settings.ShowCustomAmount)
+            if (string.IsNullOrEmpty(choiceKey) && !settings.ShowCustomAmount && !settings.EnableShoppingCart)
             {
                 return RedirectToAction(nameof(ViewPointOfSale), new { appId = appId });
             }
             string title = null;
             var price = 0.0m;
+            ViewPointOfSaleViewModel.Item choice = null;
             if (!string.IsNullOrEmpty(choiceKey))
             {
                 var choices = _AppsHelper.Parse(settings.Template, settings.Currency);
-                var choice = choices.FirstOrDefault(c => c.Id == choiceKey);
+                choice = choices.FirstOrDefault(c => c.Id == choiceKey);
                 if (choice == null)
                     return NotFound();
                 title = choice.Title;
                 price = choice.Price.Value;
+                if (amount > price)
+                    price = amount;
             }
             else
             {
-                if (!settings.ShowCustomAmount)
+                if (!settings.ShowCustomAmount && !settings.EnableShoppingCart)
                     return NotFound();
                 price = amount;
                 title = settings.Title;
@@ -95,40 +253,145 @@ namespace BTCPayServer.Controllers
             store.AdditionalClaims.Add(new Claim(Policies.CanCreateInvoice.Key, store.Id));
             var invoice = await _InvoiceController.CreateInvoiceCore(new NBitpayClient.Invoice()
             {
+                ItemCode = choice?.Id,
                 ItemDesc = title,
                 Currency = settings.Currency,
                 Price = price,
                 BuyerEmail = email,
                 OrderId = orderId,
                 NotificationURL = notificationUrl,
-                RedirectURL = redirectUrl,
-                FullNotifications = true
+                RedirectURL = redirectUrl  ?? Request.GetDisplayUrl(),
+                FullNotifications = true,
+                PosData = string.IsNullOrEmpty(posData) ? null : posData
             }, store, HttpContext.Request.GetAbsoluteRoot());
-            return Redirect(invoice.Data.Url);
+            return RedirectToAction(nameof(InvoiceController.Checkout), "Invoice", new { invoiceId = invoice.Data.Id });
+        }
+        
+        
+        private string GetUserId()
+        {
+            return _UserManager.GetUserId(User);
         }
     }
 
-
     public class AppsHelper
     {
         ApplicationDbContextFactory _ContextFactory;
         CurrencyNameTable _Currencies;
-
+        private HtmlSanitizer _HtmlSanitizer;
+        public CurrencyNameTable Currencies => _Currencies;
         public AppsHelper(ApplicationDbContextFactory contextFactory, CurrencyNameTable currencies)
         {
             _ContextFactory = contextFactory;
             _Currencies = currencies;
+            ConfigureSanitizer();
+        }
+        
+        private void ConfigureSanitizer()
+        {
+            
+            _HtmlSanitizer = new HtmlSanitizer();
 
+
+            _HtmlSanitizer.RemovingAtRule += (sender, args) =>
+            {
+                Debug.WriteLine("");
+                
+            };
+            _HtmlSanitizer.RemovingTag += (sender, args) =>
+            {
+                Debug.WriteLine("");
+                if (args.Tag.TagName.Equals("img", StringComparison.InvariantCultureIgnoreCase))
+                {
+                    if (!args.Tag.ClassList.Contains("img-fluid"))
+                    {
+                        args.Tag.ClassList.Add("img-fluid");
+                    }
+
+                    args.Cancel = true;
+                }
+            };
+            
+            _HtmlSanitizer.RemovingAttribute += (sender, args) =>
+            {
+                if (args.Tag.TagName.Equals("img",StringComparison.InvariantCultureIgnoreCase) &&  
+                    args.Attribute.Name.Equals( "src", StringComparison.InvariantCultureIgnoreCase) && 
+                    args.Reason == RemoveReason.NotAllowedUrlValue)
+                {
+                    args.Cancel = true;
+                }
+                Debug.WriteLine("");
+                
+            };
+            _HtmlSanitizer.RemovingStyle += (sender, args) => { args.Cancel = true; };
+            _HtmlSanitizer.AllowedAttributes.Add("class");
+            _HtmlSanitizer.AllowedTags.Add("iframe");
+            _HtmlSanitizer.AllowedTags.Remove("img");
+            _HtmlSanitizer.AllowedAttributes.Add("webkitallowfullscreen");
+            _HtmlSanitizer.AllowedAttributes.Add("allowfullscreen");
         }
 
-        public async Task<AppData> GetApp(string appId, AppType appType)
+        public string Sanitize(string raw)
+        {
+            return _HtmlSanitizer.Sanitize(raw);
+        }
+        
+        public async Task<StoreData[]> GetOwnedStores(string userId)
         {
             using (var ctx = _ContextFactory.CreateContext())
             {
-                return await ctx.Apps
-                                .Where(us => us.Id == appId &&
-                                             us.AppType == appType.ToString())
-                                .FirstOrDefaultAsync();
+                return await ctx.UserStore
+                    .Where(us => us.ApplicationUserId == userId && us.Role == StoreRoles.Owner)
+                    .Select(u => u.StoreData)
+                    .ToArrayAsync();
+            }
+        }
+
+        public 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;
+            }
+        }
+
+        public async Task<ListAppsViewModel.ListAppViewModel[]> GetAllApps(string userId, bool allowNoUser = false)
+        {
+            using (var ctx = _ContextFactory.CreateContext())
+            {
+                return await ctx.UserStore
+                    .Where(us => (allowNoUser && string.IsNullOrEmpty(userId)  ) || us.ApplicationUserId == userId)
+                    .Join(ctx.Apps, us => us.StoreDataId, app => app.StoreDataId,
+                        (us, app) =>
+                            new ListAppsViewModel.ListAppViewModel()
+                            {
+                                IsOwner = us.Role == StoreRoles.Owner,
+                                StoreId = us.StoreDataId,
+                                StoreName = us.StoreData.StoreName,
+                                AppName = app.Name,
+                                AppType = app.AppType,
+                                Id = app.Id
+                            })
+                    .ToArrayAsync();
+            }
+        }
+
+
+        public async Task<AppData> GetApp(string appId, AppType appType, bool includeStore = false)
+        {
+            using (var ctx = _ContextFactory.CreateContext())
+            {
+                var query = ctx.Apps
+                    .Where(us => us.Id == appId &&
+                                 us.AppType == appType.ToString());
+
+                if (includeStore)
+                {
+                    query = query.Include(data => data.StoreData);
+                }
+                return await query.FirstOrDefaultAsync();
             }
         }
 
@@ -140,38 +403,62 @@ namespace BTCPayServer.Controllers
             }
         }
 
+
         public ViewPointOfSaleViewModel.Item[] Parse(string template, string currency)
         {
+            if (string.IsNullOrWhiteSpace(template))
+                return Array.Empty<ViewPointOfSaleViewModel.Item>();
             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 })
+                .Select(kv => new PosHolder { Key = (kv.Key as YamlScalarNode)?.Value, Value = kv.Value as YamlMappingNode })
                 .Where(kv => kv.Value != null)
                 .Select(c => new ViewPointOfSaleViewModel.Item()
                 {
+                    Description = Sanitize(c.GetDetailString("description")),
                     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")
+                    Image = Sanitize(c.GetDetailString("image")),
+                    Title = Sanitize(c.GetDetailString("title") ?? c.Key),
+                    Price = c.GetDetail("price")
                              .Select(cc => new ViewPointOfSaleViewModel.Item.ItemPrice()
                              {
                                  Value = decimal.Parse(cc.Value.Value, CultureInfo.InvariantCulture),
                                  Formatted = FormatCurrency(cc.Value.Value, currency)
-                             })
-                             .Single()
+                             }).Single(),
+                    Custom = c.GetDetailString("custom") == "true"
                 })
                 .ToArray();
         }
 
+        private class PosHolder
+        {
+            public string Key { get; set; }
+            public YamlMappingNode Value { get; set; }
+
+            public IEnumerable<PosScalar> GetDetail(string field)
+            {
+                var res = Value.Children
+                                 .Where(kv => kv.Value != null)
+                                 .Select(kv => new PosScalar { Key = (kv.Key as YamlScalarNode)?.Value, Value = kv.Value as YamlScalarNode })
+                                 .Where(cc => cc.Key == field);
+                return res;
+            }
+
+            public string GetDetailString(string field)
+            {
+                
+                return GetDetail(field).FirstOrDefault()?.Value?.Value;
+            }
+        }
+        private class PosScalar
+        {
+            public string Key { get; set; }
+            public YamlScalarNode Value { get; set; }
+        }
+
         public string FormatCurrency(string price, string currency)
         {
             return decimal.Parse(price, CultureInfo.InvariantCulture).ToString("C", _Currencies.GetCurrencyProvider(currency));
@@ -198,5 +485,6 @@ namespace BTCPayServer.Controllers
                 return app;
             }
         }
+        
     }
 }

BTCPayServer/Controllers/HomeController.cs

@@ -6,16 +6,85 @@ using System.Threading.Tasks;
 using Microsoft.AspNetCore.Mvc;
 using BTCPayServer.Models;
 using NBitcoin.DataEncoders;
+using NBitcoin.Payment;
+using System.Net.Http;
+using Newtonsoft.Json.Linq;
+using NBitcoin;
+using Newtonsoft.Json;
 
 namespace BTCPayServer.Controllers
 {
     public class HomeController : Controller
     {
+        public IHttpClientFactory HttpClientFactory { get; }
+
+        public HomeController(IHttpClientFactory httpClientFactory)
+        {
+            HttpClientFactory = httpClientFactory;
+        }
         public IActionResult Index()
         {
             return View("Home");
         }
 
+        [Route("translate")]
+        public IActionResult BitpayTranslator()
+        {
+            return View(new BitpayTranslatorViewModel());
+        }
+
+        [HttpPost]
+        [Route("translate")]
+        public async Task<IActionResult> BitpayTranslator(BitpayTranslatorViewModel vm)
+        {
+            if (!ModelState.IsValid)
+                return View(vm);
+            vm.BitpayLink = vm.BitpayLink ?? string.Empty;
+            vm.BitpayLink = vm.BitpayLink.Trim();
+            if (!vm.BitpayLink.StartsWith("bitcoin:", StringComparison.OrdinalIgnoreCase))
+            {
+                var invoiceId = vm.BitpayLink.Substring(vm.BitpayLink.LastIndexOf("=", StringComparison.OrdinalIgnoreCase) + 1);
+                vm.BitpayLink = $"bitcoin:?r=https://bitpay.com/i/{invoiceId}";
+            }
+
+            try
+            {
+                BitcoinUrlBuilder urlBuilder = new BitcoinUrlBuilder(vm.BitpayLink);
+#pragma warning disable CS0618 // Type or member is obsolete
+                if (!urlBuilder.PaymentRequestUrl.DnsSafeHost.EndsWith("bitpay.com", StringComparison.OrdinalIgnoreCase))
+                {
+                    throw new Exception("This tool only work with bitpay");
+                }
+
+                var client = HttpClientFactory.CreateClient();
+                HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Get, urlBuilder.PaymentRequestUrl);
+#pragma warning restore CS0618 // Type or member is obsolete
+                request.Headers.Accept.Add(new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue("application/payment-request"));
+                var result = await client.SendAsync(request);
+                // {"network":"main","currency":"BTC","requiredFeeRate":29.834,"outputs":[{"amount":255900,"address":"1PgPo5d4swD6pKfCgoXtoW61zqTfX9H7tj"}],"time":"2018-12-03T14:39:47.162Z","expires":"2018-12-03T14:54:47.162Z","memo":"Payment request for BitPay invoice HHfG8cprRMzZG6MErCqbjv for merchant VULTR Holdings LLC","paymentUrl":"https://bitpay.com/i/HHfG8cprRMzZG6MErCqbjv","paymentId":"HHfG8cprRMzZG6MErCqbjv"}
+                var str = await result.Content.ReadAsStringAsync();
+                try
+                {
+                    var jobj = JObject.Parse(str);
+                    vm.Address = ((JArray)jobj["outputs"])[0]["address"].Value<string>();
+                    var amount = Money.Satoshis(((JArray)jobj["outputs"])[0]["amount"].Value<long>());
+                    vm.Amount = amount.ToString();
+                    vm.BitcoinUri = $"bitcoin:{vm.Address}?amount={amount.ToString()}";
+                }
+                catch (JsonReaderException)
+                {
+                    ModelState.AddModelError(nameof(vm.BitpayLink), $"Invalid or expired bitpay invoice");
+                    return View(vm);
+                }
+            }
+            catch (Exception ex)
+            {
+                ModelState.AddModelError(nameof(vm.BitpayLink), $"Error while requesting {ex.Message}");
+                return View(vm);
+            }
+            return View(vm);
+        }
+
         public IActionResult About()
         {
             ViewData["Message"] = "Your application description page.";

BTCPayServer/Controllers/InvoiceController.API.cs

@@ -40,16 +40,18 @@ namespace BTCPayServer.Controllers
 
         [HttpGet]
         [Route("invoices/{id}")]
-        [AllowAnonymous]
-        public async Task<DataWrapper<InvoiceResponse>> GetInvoice(string id, string token)
+        public async Task<DataWrapper<InvoiceResponse>> GetInvoice(string id)
         {
-            var invoice = await _InvoiceRepository.GetInvoice(null, id);
+            var invoice = (await _InvoiceRepository.GetInvoices(new InvoiceQuery()
+            {
+                InvoiceId = id,
+                StoreId = new[] { HttpContext.GetStoreData().Id }
+            })).FirstOrDefault();
             if (invoice == null)
                 throw new BitpayHttpException(404, "Object not found");
             var resp = invoice.EntityToDTO(_NetworkProvider);
             return new DataWrapper<InvoiceResponse>(resp);
         }
-
         [HttpGet]
         [Route("invoices")]
         public async Task<DataWrapper<InvoiceResponse[]>> GetInvoices(
@@ -64,15 +66,15 @@ namespace BTCPayServer.Controllers
         {
             if (dateEnd != null)
                 dateEnd = dateEnd.Value + TimeSpan.FromDays(1); //Should include the end day
-            
+
             var query = new InvoiceQuery()
             {
                 Count = limit,
                 Skip = offset,
                 EndDate = dateEnd,
                 StartDate = dateStart,
-                OrderId = orderId,
-                ItemCode = itemCode,
+                OrderId =  orderId == null ? null : new[] { orderId },
+                ItemCode =  itemCode == null ? null : new[] { itemCode },
                 Status = status == null ? null : new[] { status },
                 StoreId = new[] { this.HttpContext.GetStoreData().Id }
             };

BTCPayServer/Controllers/InvoiceController.PaymentProtocol.cs

@@ -1,117 +0,0 @@
-using System;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-using BTCPayServer.Filters;
-using BTCPayServer.Logging;
-using BTCPayServer.Payments;
-using Microsoft.AspNetCore.Mvc;
-using Microsoft.Extensions.Logging;
-using NBitcoin;
-using NBitcoin.Payment;
-
-namespace BTCPayServer.Controllers
-{
-    public partial class InvoiceController
-    {
-        [HttpGet]
-        [Route("i/{invoiceId}/{cryptoCode?}")]
-        [AcceptMediaTypeConstraint("application/bitcoin-paymentrequest")]
-        public async Task<IActionResult> GetInvoiceRequest(string invoiceId, string cryptoCode = null)
-        {
-            if (cryptoCode == null)
-                cryptoCode = "BTC";
-            var invoice = await _InvoiceRepository.GetInvoice(null, invoiceId);
-            var network = _NetworkProvider.GetNetwork(cryptoCode);
-            var paymentMethodId = new PaymentMethodId(cryptoCode, Payments.PaymentTypes.BTCLike);
-            if (invoice == null || invoice.IsExpired() || network == null || !invoice.Support(paymentMethodId))
-                return NotFound();
-
-            var dto = invoice.EntityToDTO(_NetworkProvider);
-            var paymentMethod = dto.CryptoInfo.First(c => c.GetpaymentMethodId() == paymentMethodId);
-            PaymentRequest request = new PaymentRequest
-            {
-                DetailsVersion = 1
-            };
-            request.Details.Expires = invoice.ExpirationTime;
-            request.Details.Memo = invoice.ProductInformation.ItemDesc;
-            request.Details.Network = network.NBitcoinNetwork;
-            request.Details.Outputs.Add(new PaymentOutput() { Amount = paymentMethod.Due, Script = BitcoinAddress.Create(paymentMethod.Address, network.NBitcoinNetwork).ScriptPubKey });
-            request.Details.MerchantData = Encoding.UTF8.GetBytes(invoice.Id);
-            request.Details.Time = DateTimeOffset.UtcNow;
-            request.Details.PaymentUrl = new Uri(invoice.ServerUrl.WithTrailingSlash() + ($"i/{invoice.Id}"), UriKind.Absolute);
-
-            var store = await _StoreRepository.FindStore(invoice.StoreId);
-            if (store == null)
-                throw new BitpayHttpException(401, "Unknown store");
-
-            if (store.StoreCertificate != null)
-            {
-                try
-                {
-                    request.Sign(store.StoreCertificate, PKIType.X509SHA256);
-                }
-                catch (Exception ex)
-                {
-                    Logs.PayServer.LogWarning(ex, "Error while signing payment request");
-                }
-            }
-
-            return new PaymentRequestActionResult(request);
-        }
-
-        [HttpPost]
-        [Route("i/{invoiceId}", Order = 99)]
-        [Route("i/{invoiceId}/{cryptoCode}", Order = 99)]
-        [MediaTypeConstraint("application/bitcoin-payment")]
-        public async Task<IActionResult> PostPayment(string invoiceId, string cryptoCode = null)
-        {
-            var invoice = await _InvoiceRepository.GetInvoice(null, invoiceId);
-            if (cryptoCode == null)
-                cryptoCode = "BTC";
-            var network = _NetworkProvider.GetNetwork(cryptoCode);
-            if (network == null || invoice == null || invoice.IsExpired() || !invoice.Support(new PaymentMethodId(cryptoCode, Payments.PaymentTypes.BTCLike)))
-                return NotFound();
-
-            var wallet = _WalletProvider.GetWallet(network);
-            if (wallet == null)
-                return NotFound();
-            var payment = PaymentMessage.Load(Request.Body, network.NBitcoinNetwork);
-            var unused = wallet.BroadcastTransactionsAsync(payment.Transactions);
-            await _InvoiceRepository.AddRefundsAsync(invoiceId, payment.RefundTo.Select(p => new TxOut(p.Amount, p.Script)).ToArray(), network.NBitcoinNetwork);
-            return new PaymentAckActionResult(payment.CreateACK(invoiceId + " is currently processing, thanks for your purchase..."));
-        }
-    }
-
-
-    public class PaymentRequestActionResult : IActionResult
-    {
-        PaymentRequest req;
-        public PaymentRequestActionResult(PaymentRequest req)
-        {
-            this.req = req;
-        }
-        public Task ExecuteResultAsync(ActionContext context)
-        {
-            context.HttpContext.Response.Headers["Content-Transfer-Encoding"] = "binary";
-            context.HttpContext.Response.ContentType = "application/bitcoin-paymentrequest";
-            req.WriteTo(context.HttpContext.Response.Body);
-            return Task.CompletedTask;
-        }
-    }
-    public class PaymentAckActionResult : IActionResult
-    {
-        PaymentACK req;
-        public PaymentAckActionResult(PaymentACK req)
-        {
-            this.req = req;
-        }
-        public Task ExecuteResultAsync(ActionContext context)
-        {
-            context.HttpContext.Response.Headers["Content-Transfer-Encoding"] = "binary";
-            context.HttpContext.Response.ContentType = "application/bitcoin-paymentack";
-            req.WriteTo(context.HttpContext.Response.Body);
-            return Task.CompletedTask;
-        }
-    }
-}

BTCPayServer/Controllers/InvoiceController.UI.cs

@@ -2,25 +2,30 @@
 using System.Collections.Generic;
 using System.Globalization;
 using System.Linq;
+using System.Net.Mime;
 using System.Net.WebSockets;
 using System.Threading;
 using System.Threading.Tasks;
 using BTCPayServer.Data;
 using BTCPayServer.Events;
 using BTCPayServer.Filters;
+using BTCPayServer.Models;
 using BTCPayServer.Models.InvoicingModels;
 using BTCPayServer.Payments;
 using BTCPayServer.Payments.Changelly;
+using BTCPayServer.Payments.CoinSwitch;
 using BTCPayServer.Payments.Lightning;
 using BTCPayServer.Security;
 using BTCPayServer.Services.Invoices;
-using BTCPayServer.Services.Rates;
+using BTCPayServer.Services.Invoices.Export;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.AspNetCore.Mvc.Rendering;
+using Microsoft.EntityFrameworkCore.Internal;
 using NBitcoin;
 using NBitpayClient;
 using NBXplorer;
+using Newtonsoft.Json.Linq;
 
 namespace BTCPayServer.Controllers
 {
@@ -28,11 +33,13 @@ namespace BTCPayServer.Controllers
     {
         [HttpGet]
         [Route("invoices/{invoiceId}")]
+        [Authorize(AuthenticationSchemes = Policies.CookieAuthentication)]
         public async Task<IActionResult> Invoice(string invoiceId)
         {
             var invoice = (await _InvoiceRepository.GetInvoices(new InvoiceQuery()
             {
                 InvoiceId = invoiceId,
+                UserId = GetUserId(),
                 IncludeAddresses = true,
                 IncludeEvents = true
             })).FirstOrDefault();
@@ -41,13 +48,12 @@ namespace BTCPayServer.Controllers
 
             var dto = invoice.EntityToDTO(_NetworkProvider);
             var store = await _StoreRepository.FindStore(invoice.StoreId);
-
             InvoiceDetailsModel model = new InvoiceDetailsModel()
             {
                 StoreName = store.StoreName,
                 StoreLink = Url.Action(nameof(StoresController.UpdateStore), "Stores", new { storeId = store.Id }),
                 Id = invoice.Id,
-                Status = invoice.Status,
+                State = invoice.GetInvoiceState().ToString(),
                 TransactionSpeed = invoice.SpeedPolicy == SpeedPolicy.HighSpeed ? "high" :
                                    invoice.SpeedPolicy == SpeedPolicy.MediumSpeed ? "medium" :
                                    invoice.SpeedPolicy == SpeedPolicy.LowMediumSpeed ? "low-medium" :
@@ -58,13 +64,14 @@ namespace BTCPayServer.Controllers
                 MonitoringDate = invoice.MonitoringExpiration,
                 OrderId = invoice.OrderId,
                 BuyerInformation = invoice.BuyerInformation,
-                Fiat = _CurrencyNameTable.DisplayFormatCurrency((decimal)dto.Price, dto.Currency),
+                Fiat = _CurrencyNameTable.DisplayFormatCurrency(dto.Price, dto.Currency),
                 NotificationEmail = invoice.NotificationEmail,
                 NotificationUrl = invoice.NotificationURL,
                 RedirectUrl = invoice.RedirectURL,
                 ProductInformation = invoice.ProductInformation,
                 StatusException = invoice.ExceptionStatus,
-                Events = invoice.Events
+                Events = invoice.Events,
+                PosData = PosDataParser.ParsePosData(dto.PosData)
             };
 
             foreach (var data in invoice.GetPaymentMethods(null))
@@ -74,9 +81,9 @@ namespace BTCPayServer.Controllers
                 var paymentMethodId = data.GetId();
                 var cryptoPayment = new InvoiceDetailsModel.CryptoPayment();
                 cryptoPayment.PaymentMethod = ToString(paymentMethodId);
-                cryptoPayment.Due = accounting.Due.ToString() + $" {paymentMethodId.CryptoCode}";
-                cryptoPayment.Paid = accounting.CryptoPaid.ToString() + $" {paymentMethodId.CryptoCode}";
-                cryptoPayment.Overpaid = (accounting.DueUncapped > Money.Zero ? Money.Zero : -accounting.DueUncapped).ToString() + $" {paymentMethodId.CryptoCode}";
+                cryptoPayment.Due = $"{accounting.Due} {paymentMethodId.CryptoCode}";
+                cryptoPayment.Paid = $"{accounting.CryptoPaid} {paymentMethodId.CryptoCode}";
+                cryptoPayment.Overpaid = $"{accounting.OverpaidHelper} {paymentMethodId.CryptoCode}";
 
                 var onchainMethod = data.GetPaymentMethodDetails() as Payments.Bitcoin.BitcoinLikeOnChainPaymentMethod;
                 if (onchainMethod != null)
@@ -98,7 +105,7 @@ namespace BTCPayServer.Controllers
                     {
                         var m = new InvoiceDetailsModel.Payment();
                         m.Crypto = payment.GetPaymentMethodId().CryptoCode;
-                        m.DepositAddress = onChainPaymentData.Output.ScriptPubKey.GetDestinationAddress(paymentNetwork.NBitcoinNetwork);
+                        m.DepositAddress = onChainPaymentData.GetDestination(paymentNetwork);
 
                         int confirmationCount = 0;
                         if ((onChainPaymentData.ConfirmationCount < paymentNetwork.MaxTrackedConfirmation && payment.Accounted)
@@ -174,7 +181,8 @@ namespace BTCPayServer.Controllers
         [AcceptMediaTypeConstraint("application/bitcoin-paymentrequest", false)]
         [XFrameOptionsAttribute(null)]
         [ReferrerPolicyAttribute("origin")]
-        public async Task<IActionResult> Checkout(string invoiceId, string id = null, string paymentMethodId = null)
+        public async Task<IActionResult> Checkout(string invoiceId, string id = null, string paymentMethodId = null,
+            [FromQuery]string view = null)
         {
             //Keep compatibility with Bitpay
             invoiceId = invoiceId ?? id;
@@ -185,6 +193,8 @@ namespace BTCPayServer.Controllers
             if (model == null)
                 return NotFound();
 
+            if (view == "modal")
+                model.IsModal = true;
 
             _CSP.Add(new ConsentSecurityPolicy("script-src", "'unsafe-eval'")); // Needed by Vue
             if (!string.IsNullOrEmpty(model.CustomCSSLink) &&
@@ -204,7 +214,7 @@ namespace BTCPayServer.Controllers
 
         private async Task<PaymentModel> GetInvoiceModel(string invoiceId, string paymentMethodIdStr)
         {
-            var invoice = await _InvoiceRepository.GetInvoice(null, invoiceId);
+            var invoice = await _InvoiceRepository.GetInvoice(invoiceId);
             if (invoice == null)
                 return null;
             var store = await _StoreRepository.FindStore(invoice.StoreId);
@@ -250,6 +260,11 @@ namespace BTCPayServer.Controllers
                                            storeBlob.ChangellySettings.IsConfigured())
                 ? storeBlob.ChangellySettings
                 : null;
+            
+            CoinSwitchSettings coinswitch = (storeBlob.CoinSwitchSettings != null && storeBlob.CoinSwitchSettings.Enabled &&
+                                           storeBlob.CoinSwitchSettings.IsConfigured())
+                ? storeBlob.CoinSwitchSettings
+                : null;
 
 
             var changellyAmountDue = changelly != null
@@ -267,7 +282,7 @@ namespace BTCPayServer.Controllers
                 ServerUrl = HttpContext.Request.GetAbsoluteRoot(),
                 OrderId = invoice.OrderId,
                 InvoiceId = invoice.Id,
-                DefaultLang = storeBlob.DefaultLang ?? "en-US",
+                DefaultLang = storeBlob.DefaultLang ?? "en",
                 HtmlTitle = storeBlob.HtmlTitle ?? "BTCPay Invoice",
                 CustomCSSLink = storeBlob.CustomCSS?.AbsoluteUri,
                 CustomLogoLink = storeBlob.CustomLogo?.AbsoluteUri,
@@ -293,12 +308,17 @@ namespace BTCPayServer.Controllers
                                     throw new NotSupportedException(),
                 TxCount = accounting.TxRequired,
                 BtcPaid = accounting.Paid.ToString(),
-                Status = invoice.Status,
-                NetworkFee = paymentMethodDetails.GetTxFee(),
+#pragma warning disable CS0618 // Type or member is obsolete
+                Status = invoice.StatusString,
+#pragma warning restore CS0618 // Type or member is obsolete
+                NetworkFee = paymentMethodDetails.GetNextNetworkFee(),
                 IsMultiCurrency = invoice.GetPayments().Select(p => p.GetPaymentMethodId()).Concat(new[] { paymentMethod.GetId() }).Distinct().Count() > 1,
                 ChangellyEnabled = changelly != null,
                 ChangellyMerchantId = changelly?.ChangellyMerchantId,
                 ChangellyAmountDue = changellyAmountDue,
+                CoinSwitchEnabled = coinswitch != null,
+                CoinSwitchMerchantId = coinswitch?.MerchantId,
+                CoinSwitchMode = coinswitch?.Mode,
                 StoreId = store.Id,
                 AvailableCryptos = invoice.GetPaymentMethods(_NetworkProvider)
                                           .Where(i => i.Network != null)
@@ -364,8 +384,8 @@ namespace BTCPayServer.Controllers
         {
             if (!HttpContext.WebSockets.IsWebSocketRequest)
                 return NotFound();
-            var invoice = await _InvoiceRepository.GetInvoice(null, invoiceId);
-            if (invoice == null || invoice.Status == "complete" || invoice.Status == "invalid" || invoice.Status == "expired")
+            var invoice = await _InvoiceRepository.GetInvoice(invoiceId);
+            if (invoice == null || invoice.Status == InvoiceStatus.Complete || invoice.Status ==  InvoiceStatus.Invalid || invoice.Status == InvoiceStatus.Expired)
                 return NotFound();
             var webSocket = await HttpContext.WebSockets.AcceptWebSocketAsync();
             CompositeDisposable leases = new CompositeDisposable();
@@ -428,44 +448,75 @@ namespace BTCPayServer.Controllers
                 Count = count,
                 StatusMessage = StatusMessage
             };
-
-            var list = await ListInvoicesProcess(searchTerm, skip, count);
+            InvoiceQuery invoiceQuery = GetInvoiceQuery(searchTerm);
+            var counting = _InvoiceRepository.GetInvoicesTotal(invoiceQuery);
+            invoiceQuery.Count = count;
+            invoiceQuery.Skip = skip;
+            var list = await _InvoiceRepository.GetInvoices(invoiceQuery);
             foreach (var invoice in list)
             {
+                var state = invoice.GetInvoiceState();
                 model.Invoices.Add(new InvoiceModel()
                 {
-                    Status = invoice.Status + (invoice.ExceptionStatus == null ? string.Empty : $" ({invoice.ExceptionStatus})"),
-                    ShowCheckout = invoice.Status == "new",
+                    Status = state.ToString(),
+                    ShowCheckout = invoice.Status == InvoiceStatus.New,
                     Date = invoice.InvoiceTime,
                     InvoiceId = invoice.Id,
                     OrderId = invoice.OrderId ?? string.Empty,
                     RedirectUrl = invoice.RedirectURL ?? string.Empty,
-                    AmountCurrency = $"{invoice.ProductInformation.Price.ToString(CultureInfo.InvariantCulture)} {invoice.ProductInformation.Currency}"
+                    AmountCurrency = $"{invoice.ProductInformation.Price.ToString(CultureInfo.InvariantCulture)} {invoice.ProductInformation.Currency}",
+                    CanMarkInvalid = state.CanMarkInvalid(),
+                    CanMarkComplete = state.CanMarkComplete()
                 });
             }
+            model.Total = await counting;
             return View(model);
         }
 
-        private async Task<InvoiceEntity[]> ListInvoicesProcess(string searchTerm = null, int skip = 0, int count = 50)
+        private InvoiceQuery GetInvoiceQuery(string searchTerm = null)
         {
             var filterString = new SearchString(searchTerm);
-            var list = await _InvoiceRepository.GetInvoices(new InvoiceQuery()
+            var invoiceQuery = new InvoiceQuery()
             {
                 TextSearch = filterString.TextSearch,
-                Count = count,
-                Skip = skip,
                 UserId = GetUserId(),
                 Unusual = !filterString.Filters.ContainsKey("unusual") ? null
                           : !bool.TryParse(filterString.Filters["unusual"].First(), out var r) ? (bool?)null
                           : r,
                 Status = filterString.Filters.ContainsKey("status") ? filterString.Filters["status"].ToArray() : null,
                 ExceptionStatus = filterString.Filters.ContainsKey("exceptionstatus") ? filterString.Filters["exceptionstatus"].ToArray() : null,
-                StoreId = filterString.Filters.ContainsKey("storeid") ? filterString.Filters["storeid"].ToArray() : null
-            });
-
-            return list;
+                StoreId = filterString.Filters.ContainsKey("storeid") ? filterString.Filters["storeid"].ToArray() : null,
+                ItemCode = filterString.Filters.ContainsKey("itemcode") ? filterString.Filters["itemcode"].ToArray() : null,
+                OrderId = filterString.Filters.ContainsKey("orderid") ? filterString.Filters["orderid"].ToArray() : null
+            };
+            return invoiceQuery;
         }
 
+        [HttpGet]
+        [Authorize(AuthenticationSchemes = Policies.CookieAuthentication)]
+        [BitpayAPIConstraint(false)]
+        public async Task<IActionResult> Export(string format, string searchTerm = null)
+        {
+            var model = new InvoiceExport(_NetworkProvider, _CurrencyNameTable);
+
+            InvoiceQuery invoiceQuery = GetInvoiceQuery(searchTerm);
+            invoiceQuery.Count = int.MaxValue;
+            invoiceQuery.Skip = 0;
+            var invoices = await _InvoiceRepository.GetInvoices(invoiceQuery);
+            var res = model.Process(invoices, format);
+
+            var cd = new ContentDisposition
+            {
+                FileName = $"btcpay-export-{DateTime.UtcNow.ToString("yyyyMMdd-HHmmss", CultureInfo.InvariantCulture)}.{format}",
+                Inline = true
+            };
+            Response.Headers.Add("Content-Disposition", cd.ToString());
+            Response.Headers.Add("X-Content-Type-Options", "nosniff");
+            return Content(res, "application/" + format);
+        }
+
+
+
         [HttpGet]
         [Route("invoices/create")]
         [Authorize(AuthenticationSchemes = Policies.CookieAuthentication)]
@@ -558,17 +609,60 @@ namespace BTCPayServer.Controllers
             });
         }
 
-        [HttpPost]
-        [Route("invoices/invalidatepaid")]
+        [HttpGet]
+        [Route("invoices/{invoiceId}/changestate/{newState}")]
         [Authorize(AuthenticationSchemes = Policies.CookieAuthentication)]
         [BitpayAPIConstraint(false)]
-        public async Task<IActionResult> InvalidatePaidInvoice(string invoiceId)
+        public IActionResult ChangeInvoiceState(string invoiceId, string newState)
         {
-            var invoice = await _InvoiceRepository.GetInvoice(null, invoiceId);
+            if (newState == "invalid")
+            {
+                return View("Confirm", new ConfirmModel()
+                {
+                    Action = "Make invoice invalid",
+                    Title = "Change invoice state",
+                    Description = $"You will transition the state of this invoice to \"invalid\", do you want to continue?",
+                });
+            }
+            else if (newState == "complete")
+            {
+                return View("Confirm", new ConfirmModel()
+                {
+                    Action = "Make invoice complete",
+                    Title = "Change invoice state",
+                    Description = $"You will transition the state of this invoice to \"complete\", do you want to continue?",
+                    ButtonClass = "btn-primary"
+                });
+            }
+            else
+                return NotFound();
+        }
+
+        [HttpPost]
+        [Route("invoices/{invoiceId}/changestate/{newState}")]
+        [Authorize(AuthenticationSchemes = Policies.CookieAuthentication)]
+        [BitpayAPIConstraint(false)]
+        public async Task<IActionResult> ChangeInvoiceStateConfirm(string invoiceId, string newState)
+        {
+            var invoice = (await _InvoiceRepository.GetInvoices(new InvoiceQuery()
+            {
+                InvoiceId = invoiceId,
+                UserId = GetUserId()
+            })).FirstOrDefault();
             if (invoice == null)
                 return NotFound();
-            await _InvoiceRepository.UpdatePaidInvoiceToInvalid(invoiceId);
-            _EventAggregator.Publish(new InvoiceEvent(invoice.EntityToDTO(_NetworkProvider), 1008, "invoice_markedInvalid"));
+            if (newState == "invalid")
+            {
+                await _InvoiceRepository.UpdatePaidInvoiceToInvalid(invoiceId);
+                _EventAggregator.Publish(new InvoiceEvent(invoice.EntityToDTO(_NetworkProvider), 1008, InvoiceEvent.MarkedInvalid));
+                StatusMessage = "Invoice marked invalid";
+            }
+            else if(newState == "complete")
+            {
+                await _InvoiceRepository.UpdatePaidInvoiceToComplete(invoiceId);
+                _EventAggregator.Publish(new InvoiceEvent(invoice.EntityToDTO(_NetworkProvider), 2008, InvoiceEvent.MarkedCompleted));
+                StatusMessage = "Invoice marked complete";
+            }
             return RedirectToAction(nameof(ListInvoices));
         }
 
@@ -583,5 +677,49 @@ namespace BTCPayServer.Controllers
         {
             return _UserManager.GetUserId(User);
         }
+
+        public class PosDataParser
+        {
+            public static Dictionary<string, object> ParsePosData(string posData)
+            {
+                var result = new Dictionary<string,object>();
+                if (string.IsNullOrEmpty(posData))
+                {
+                    return result;
+                }
+            
+                try
+                {
+                    var jObject =JObject.Parse(posData);
+                    foreach (var item in jObject)
+                    {
+                    
+                        switch (item.Value.Type)
+                        {
+                            case JTokenType.Array:
+                                var items = item.Value.AsEnumerable().ToList();
+                                for (var i = 0; i < items.Count(); i++)
+                                {
+                                    result.Add($"{item.Key}[{i}]", ParsePosData(items[i].ToString()));
+                                }
+                                break;
+                            case JTokenType.Object:
+                                result.Add(item.Key, ParsePosData(item.Value.ToString()));
+                                break;
+                            default:
+                                result.Add(item.Key, item.Value.ToString());
+                                break;
+                        }
+                    
+                    }
+                }
+                catch
+                {
+                    result.Add(string.Empty, posData);
+                }
+                return result;
+            }
+        }
+        
     }
 }

BTCPayServer/Controllers/InvoiceController.cs

@@ -5,6 +5,7 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 using BTCPayServer.Data;
+using BTCPayServer.Events;
 using BTCPayServer.Logging;
 using BTCPayServer.Models;
 using BTCPayServer.Payments;
@@ -14,7 +15,7 @@ using BTCPayServer.Services.Invoices;
 using BTCPayServer.Services.Rates;
 using BTCPayServer.Services.Stores;
 using BTCPayServer.Services.Wallets;
-using BTCPayServer.Validations;
+using BTCPayServer.Validation;
 using Microsoft.AspNetCore.Identity;
 using Microsoft.AspNetCore.Mvc;
 using NBitcoin;
@@ -70,7 +71,6 @@ namespace BTCPayServer.Controllers
             {
                 InvoiceTime = DateTimeOffset.UtcNow
             };
-
             var storeBlob = store.GetStoreBlob();
             Uri notificationUri = Uri.IsWellFormedUriString(invoice.NotificationURL, UriKind.Absolute) ? new Uri(invoice.NotificationURL, UriKind.Absolute) : null;
             if (notificationUri == null || (notificationUri.Scheme != "http" && notificationUri.Scheme != "https")) //TODO: Filer non routable addresses ?
@@ -94,12 +94,25 @@ namespace BTCPayServer.Controllers
                     throw new BitpayHttpException(400, "Invalid email");
                 entity.RefundMail = entity.BuyerInformation.BuyerEmail;
             }
+
+            var currencyInfo = _CurrencyNameTable.GetNumberFormatInfo(invoice.Currency, false);
+            if (currencyInfo != null)
+            {
+                invoice.Price = Math.Round(invoice.Price, currencyInfo.CurrencyDecimalDigits);
+                invoice.TaxIncluded = Math.Round(invoice.TaxIncluded, currencyInfo.CurrencyDecimalDigits);
+            }
+            invoice.Price = Math.Max(0.0m, invoice.Price);
+            invoice.TaxIncluded = Math.Max(0.0m, invoice.TaxIncluded);
+            invoice.TaxIncluded = Math.Min(invoice.TaxIncluded, invoice.Price);
+
             entity.ProductInformation = Map<Invoice, ProductInformation>(invoice);
+
+
             entity.RedirectURL = invoice.RedirectURL ?? store.StoreWebsite;
             if (!Uri.IsWellFormedUriString(entity.RedirectURL, UriKind.Absolute))
                 entity.RedirectURL = null;
 
-            entity.Status = "new";
+            entity.Status = InvoiceStatus.New;
             entity.SpeedPolicy = ParseSpeedPolicy(invoice.TransactionSpeed, store.SpeedPolicy);
 
             HashSet<CurrencyPair> currencyPairsToFetch = new HashSet<CurrencyPair>();
@@ -146,7 +159,7 @@ namespace BTCPayServer.Controllers
             if (supported.Count == 0)
             {
                 StringBuilder errors = new StringBuilder();
-                errors.AppendLine("No payment method available for this store");
+                errors.AppendLine("Warning: No wallet has been linked to your BTCPay Store. See the following link for more information on how to connect your store and wallet. (https://docs.btcpayserver.org/btcpay-basics/gettingstarted#connecting-btcpay-store-to-your-wallet)");
                 foreach (var error in logs.ToList())
                 {
                     errors.AppendLine(error.ToString());
@@ -159,7 +172,7 @@ namespace BTCPayServer.Controllers
             entity.PosData = invoice.PosData;
             entity = await _InvoiceRepository.CreateInvoiceAsync(store.Id, entity, logs, _NetworkProvider);
             await fetchingAll;
-            _EventAggregator.Publish(new Events.InvoiceEvent(entity.EntityToDTO(_NetworkProvider), 1001, "invoice_created"));
+            _EventAggregator.Publish(new Events.InvoiceEvent(entity.EntityToDTO(_NetworkProvider), 1001, InvoiceEvent.Created));
             var resp = entity.EntityToDTO(_NetworkProvider);
             return new DataWrapper<InvoiceResponse>(resp) { Facade = "pos/invoice" };
         }
@@ -200,8 +213,6 @@ namespace BTCPayServer.Controllers
                 paymentMethod.SetId(supportedPaymentMethod.PaymentId);
                 paymentMethod.Rate = rate.BidAsk.Bid;
                 var paymentDetails = await handler.CreatePaymentMethodDetails(supportedPaymentMethod, paymentMethod, store, network, preparePayment);
-                if (storeBlob.NetworkFeeDisabled)
-                    paymentDetails.SetNoTxFee();
                 paymentMethod.SetPaymentMethodDetails(paymentDetails);
 
                 Func<Money, Money, bool> compare = null;
@@ -241,7 +252,7 @@ namespace BTCPayServer.Controllers
 #pragma warning disable CS0618
                 if (paymentMethod.GetId().IsBTCOnChain)
                 {
-                    entity.TxFee = paymentMethod.TxFee;
+                    entity.TxFee = paymentMethod.NextNetworkFee;
                     entity.Rate = paymentMethod.Rate;
                     entity.DepositAddress = paymentMethod.DepositAddress;
                 }

BTCPayServer/Controllers/Macaroons.cs

@@ -0,0 +1,57 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace BTCPayServer.Controllers
+{
+    public class Macaroons
+    {
+        public class Macaroon
+        {
+            public Macaroon(byte[] bytes)
+            {
+                Bytes = bytes;
+                Hex = NBitcoin.DataEncoders.Encoders.Hex.EncodeData(bytes);
+            }
+
+            public string Hex { get; set; }
+            public byte[] Bytes { get; set; }
+        }
+        public static async Task<Macaroons> GetFromDirectoryAsync(string directoryPath)
+        {
+            if (directoryPath == null)
+                throw new ArgumentNullException(nameof(directoryPath));
+            Macaroons macaroons = new Macaroons();
+            if (!Directory.Exists(directoryPath))
+                return macaroons;
+            foreach(var file in Directory.GetFiles(directoryPath, "*.macaroon"))
+            {
+                try
+                {
+                    switch (Path.GetFileName(file))
+                    {
+                        case "admin.macaroon":
+                            macaroons.AdminMacaroon = new Macaroon(await File.ReadAllBytesAsync(file));
+                            break;
+                        case "readonly.macaroon":
+                            macaroons.ReadonlyMacaroon = new Macaroon(await File.ReadAllBytesAsync(file));
+                            break;
+                        case "invoice.macaroon":
+                            macaroons.InvoiceMacaroon = new Macaroon(await File.ReadAllBytesAsync(file));
+                            break;
+                        default:
+                            break;
+                    }
+                }
+                catch { }
+            }
+            return macaroons;
+        }
+        public Macaroon ReadonlyMacaroon { get; set; }
+
+        public Macaroon InvoiceMacaroon { get; set; }
+        public Macaroon AdminMacaroon { get; set; }
+    }
+}

BTCPayServer/Controllers/ManageController.cs

@@ -31,7 +31,7 @@ namespace BTCPayServer.Controllers
     {
         private readonly UserManager<ApplicationUser> _userManager;
         private readonly SignInManager<ApplicationUser> _signInManager;
-        private readonly IEmailSender _emailSender;
+        private readonly EmailSenderFactory _EmailSenderFactory;
         private readonly ILogger _logger;
         private readonly UrlEncoder _urlEncoder;
         TokenRepository _TokenRepository;
@@ -44,7 +44,7 @@ namespace BTCPayServer.Controllers
         public ManageController(
           UserManager<ApplicationUser> userManager,
           SignInManager<ApplicationUser> signInManager,
-          IEmailSender emailSender,
+          EmailSenderFactory emailSenderFactory,
           ILogger<ManageController> logger,
           UrlEncoder urlEncoder,
           TokenRepository tokenRepository,
@@ -54,7 +54,7 @@ namespace BTCPayServer.Controllers
         {
             _userManager = userManager;
             _signInManager = signInManager;
-            _emailSender = emailSender;
+            _EmailSenderFactory = emailSenderFactory;
             _logger = logger;
             _urlEncoder = urlEncoder;
             _TokenRepository = tokenRepository;
@@ -156,8 +156,7 @@ namespace BTCPayServer.Controllers
             var code = await _userManager.GenerateEmailConfirmationTokenAsync(user);
             var callbackUrl = Url.EmailConfirmationLink(user.Id, code, Request.Scheme);
             var email = user.Email;
-            await _emailSender.SendEmailConfirmationAsync(email, callbackUrl);
-
+            _EmailSenderFactory.GetEmailSender().SendEmailConfirmation(email, callbackUrl);
             StatusMessage = "Verification email sent. Please check your email.";
             return RedirectToAction(nameof(Index));
         }
@@ -443,7 +442,7 @@ namespace BTCPayServer.Controllers
 
             if (!is2faTokenValid)
             {
-                ModelState.AddModelError("model.Code", "Verification code is invalid.");
+                ModelState.AddModelError(nameof(model.Code), "Verification code is invalid.");
                 return View(model);
             }
 

BTCPayServer/Controllers/PublicLightningNodeInfoController.cs

@@ -0,0 +1,87 @@
+using System;
+using System.Linq;
+using System.Threading.Tasks;
+using BTCPayServer.Data;
+using BTCPayServer.Lightning;
+using BTCPayServer.Models.StoreViewModels;
+using BTCPayServer.Payments;
+using BTCPayServer.Payments.Lightning;
+using BTCPayServer.Services.Stores;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Authorization;
+
+namespace BTCPayServer.Controllers
+{
+    
+    [Route("embed/{storeId}/{cryptoCode}/ln")]
+    [AllowAnonymous]
+    public class PublicLightningNodeInfoController : Controller
+    {
+        private readonly BTCPayNetworkProvider _BtcPayNetworkProvider;
+        private readonly LightningLikePaymentHandler _LightningLikePaymentHandler;
+        private readonly StoreRepository _StoreRepository;
+
+        public PublicLightningNodeInfoController(BTCPayNetworkProvider btcPayNetworkProvider, 
+            LightningLikePaymentHandler lightningLikePaymentHandler, StoreRepository storeRepository)
+        {
+            _BtcPayNetworkProvider = btcPayNetworkProvider;
+            _LightningLikePaymentHandler = lightningLikePaymentHandler;
+            _StoreRepository = storeRepository;
+        }
+        
+        [HttpGet]
+        public async Task<IActionResult> ShowLightningNodeInfo(string storeId, string cryptoCode)
+        {
+            var store = await _StoreRepository.FindStore(storeId);
+            if (store == null)
+                return NotFound();
+
+            try
+            {
+                var paymentMethodDetails = GetExistingLightningSupportedPaymentMethod(cryptoCode, store);
+                var network = _BtcPayNetworkProvider.GetNetwork(cryptoCode);
+                var nodeInfo =
+                    await _LightningLikePaymentHandler.GetNodeInfo(paymentMethodDetails,
+                        network);
+
+                return View(new ShowLightningNodeInfoViewModel()
+                {
+                    Available = true,
+                    NodeInfo = nodeInfo.ToString(),
+                    CryptoCode = cryptoCode,
+                    CryptoImage = GetImage(paymentMethodDetails.PaymentId, network)
+                });
+            }
+            catch (Exception)
+            {
+                return View(new ShowLightningNodeInfoViewModel() {Available = false, CryptoCode = cryptoCode});
+            }
+        }
+        
+        private LightningSupportedPaymentMethod GetExistingLightningSupportedPaymentMethod(string cryptoCode, StoreData store)
+        {
+            var id = new PaymentMethodId(cryptoCode, PaymentTypes.LightningLike);
+            var existing = store.GetSupportedPaymentMethods(_BtcPayNetworkProvider)
+                .OfType<LightningSupportedPaymentMethod>()
+                .FirstOrDefault(d => d.PaymentId == id);
+            return existing;
+        }
+
+
+        private string GetImage(PaymentMethodId paymentMethodId, BTCPayNetwork network)
+        {
+            var res = paymentMethodId.PaymentType == PaymentTypes.BTCLike
+                ? Url.Content(network.CryptoImagePath)
+                : Url.Content(network.LightningImagePath);
+            return "/" + res;
+        }
+    }
+
+    public class ShowLightningNodeInfoViewModel
+    {
+        public string NodeInfo { get; set; }
+        public bool Available { get; set; }
+        public string CryptoCode { get; set; }
+        public string CryptoImage { get; set; }
+    }
+}

BTCPayServer/Controllers/ServerController.cs

@@ -8,7 +8,7 @@ using BTCPayServer.Services;
 using BTCPayServer.Services.Mails;
 using BTCPayServer.Services.Rates;
 using BTCPayServer.Services.Stores;
-using BTCPayServer.Validations;
+using BTCPayServer.Validation;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Identity;
 using Microsoft.AspNetCore.Mvc;
@@ -17,6 +17,7 @@ using NBitcoin.DataEncoders;
 using System;
 using System.Collections.Generic;
 using System.ComponentModel.DataAnnotations;
+using System.IO;
 using System.Linq;
 using System.Net;
 using System.Net.Http;
@@ -45,6 +46,7 @@ namespace BTCPayServer.Controllers
             RateFetcher rateProviderFactory,
             SettingsRepository settingsRepository,
             NBXplorerDashboard dashBoard,
+            IHttpClientFactory httpClientFactory,
             LightningConfigurationProvider lnConfigProvider,
             Services.Stores.StoreRepository storeRepository)
         {
@@ -52,6 +54,7 @@ namespace BTCPayServer.Controllers
             _UserManager = userManager;
             _SettingsRepository = settingsRepository;
             _dashBoard = dashBoard;
+            HttpClientFactory = httpClientFactory;
             _RateProviderFactory = rateProviderFactory;
             _StoreRepository = storeRepository;
             _LnConfigProvider = lnConfigProvider;
@@ -167,6 +170,7 @@ namespace BTCPayServer.Controllers
                 vm.DNSDomain = null;
             return View(vm);
         }
+        
         [Route("server/maintenance")]
         [HttpPost]
         public async Task<IActionResult> Maintenance(MaintenanceViewModel vm, string command)
@@ -393,6 +397,7 @@ namespace BTCPayServer.Controllers
         {
             get; set;
         }
+        public IHttpClientFactory HttpClientFactory { get; }
 
         [Route("server/emails")]
         public async Task<IActionResult> Emails()
@@ -429,16 +434,126 @@ namespace BTCPayServer.Controllers
                     {
                         Crypto = cryptoCode,
                         Type = grpcService.Type,
+                        Action = nameof(LndServices),
+                        Index = i++,
+                    });
+                }
+                i = 0;
+                foreach (var sparkService in _Options.ExternalServicesByCryptoCode.GetServices<ExternalSpark>(cryptoCode))
+                {
+                    result.LNDServices.Add(new ServicesViewModel.LNDServiceViewModel()
+                    {
+                        Crypto = cryptoCode,
+                        Type = "Spark server",
+                        Action = nameof(SparkServices),
+                        Index = i++,
+                    });
+                }
+                foreach (var chargeService in _Options.ExternalServicesByCryptoCode.GetServices<ExternalCharge>(cryptoCode))
+                {
+                    result.LNDServices.Add(new ServicesViewModel.LNDServiceViewModel()
+                    {
+                        Crypto = cryptoCode,
+                        Type = "Lightning charge server",
+                        Action = nameof(LightningChargeServices),
                         Index = i++,
                     });
                 }
             }
-            result.HasSSH = _Options.SSHSettings != null;
+            foreach(var externalService in _Options.ExternalServices)
+            {
+                result.ExternalServices.Add(new ServicesViewModel.ExternalService()
+                {
+                    Name = externalService.Key,
+                    Link = this.Request.GetRelativePathOrAbsolute(externalService.Value)
+                });
+            }
+            if(_Options.SSHSettings != null)
+            {
+                result.ExternalServices.Add(new ServicesViewModel.ExternalService()
+                {
+                    Name = "SSH",
+                    Link = this.Url.Action(nameof(SSHService))
+                });
+            }
             return View(result);
         }
 
-        [Route("server/services/lnd-grpc/{cryptoCode}/{index}")]
-        public IActionResult LndGrpcServices(string cryptoCode, int index, uint? nonce)
+        [Route("server/services/lightning-charge/{cryptoCode}/{index}")]
+        public async Task<IActionResult> LightningChargeServices(string cryptoCode, int index, bool showQR = false)
+        {
+            if (!_dashBoard.IsFullySynched(cryptoCode, out var unusud))
+            {
+                StatusMessage = $"Error: {cryptoCode} is not fully synched";
+                return RedirectToAction(nameof(Services));
+            }
+            var lightningCharge = _Options.ExternalServicesByCryptoCode.GetServices<ExternalCharge>(cryptoCode).Select(c => c.ConnectionString).FirstOrDefault();
+            if (lightningCharge == null)
+            {
+                return NotFound();
+            }
+
+            ChargeServiceViewModel vm = new ChargeServiceViewModel();
+            vm.Uri = lightningCharge.ToUri(false).AbsoluteUri;
+            vm.APIToken = lightningCharge.Password;
+            try
+            {
+                if (string.IsNullOrEmpty(vm.APIToken) && lightningCharge.CookieFilePath != null)
+                {
+                    if (lightningCharge.CookieFilePath != "fake")
+                        vm.APIToken = await System.IO.File.ReadAllTextAsync(lightningCharge.CookieFilePath);
+                    else
+                        vm.APIToken = "fake";
+                }
+                var builder = new UriBuilder(lightningCharge.ToUri(false));
+                builder.UserName = "api-token";
+                builder.Password = vm.APIToken;
+                vm.AuthenticatedUri = builder.ToString();
+            }
+            catch (Exception ex)
+            {
+                StatusMessage = $"Error: {ex.Message}";
+                return RedirectToAction(nameof(Services));
+            }
+            return View(vm);
+        }
+
+        [Route("server/services/spark/{cryptoCode}/{index}")]
+        public async Task<IActionResult> SparkServices(string cryptoCode, int index, bool showQR = false)
+        {
+            if (!_dashBoard.IsFullySynched(cryptoCode, out var unusud))
+            {
+                StatusMessage = $"Error: {cryptoCode} is not fully synched";
+                return RedirectToAction(nameof(Services));
+            }
+            var spark = _Options.ExternalServicesByCryptoCode.GetServices<ExternalSpark>(cryptoCode).Select(c => c.ConnectionString).FirstOrDefault();
+            if(spark == null)
+            {
+                return NotFound();
+            }
+
+            SparkServicesViewModel vm = new SparkServicesViewModel();
+            vm.ShowQR = showQR;
+            try
+            {
+                var cookie = (spark.CookeFile == "fake"
+                            ? "fake:fake:fake" // If we are testing, it should not crash
+                            : await System.IO.File.ReadAllTextAsync(spark.CookeFile)).Split(':');
+                if (cookie.Length >= 3)
+                {
+                    vm.SparkLink = $"{spark.Server.AbsoluteUri}?access-key={cookie[2]}";
+                }
+            }
+            catch(Exception ex)
+            {
+                StatusMessage = $"Error: {ex.Message}";
+                return RedirectToAction(nameof(Services));
+            }
+            return View(vm);
+        }
+
+        [Route("server/services/lnd/{cryptoCode}/{index}")]
+        public async Task<IActionResult> LndServices(string cryptoCode, int index, uint? nonce)
         {
             if (!_dashBoard.IsFullySynched(cryptoCode, out var unusud))
             {
@@ -449,9 +564,19 @@ namespace BTCPayServer.Controllers
             if (external == null)
                 return NotFound();
             var model = new LndGrpcServicesViewModel();
+            if (external.ConnectionType == LightningConnectionType.LndGRPC)
+            {
+                model.Host = $"{external.BaseUri.DnsSafeHost}:{external.BaseUri.Port}";
+                model.SSL = external.BaseUri.Scheme == "https";
+                model.ConnectionType = "GRPC";
+                model.GRPCSSLCipherSuites = "ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256";
+            }
+            else if(external.ConnectionType == LightningConnectionType.LndREST)
+            {
+                model.Uri = external.BaseUri.AbsoluteUri;
+                model.ConnectionType = "REST";
+            }
 
-            model.Host = $"{external.BaseUri.DnsSafeHost}:{external.BaseUri.Port}";
-            model.SSL = external.BaseUri.Scheme == "https";
             if (external.CertificateThumbprint != null)
             {
                 model.CertificateThumbprint = Encoders.Hex.EncodeData(external.CertificateThumbprint);
@@ -460,10 +585,14 @@ namespace BTCPayServer.Controllers
             {
                 model.Macaroon = Encoders.Hex.EncodeData(external.Macaroon);
             }
+            var macaroons = external.MacaroonDirectoryPath == null ? null : await Macaroons.GetFromDirectoryAsync(external.MacaroonDirectoryPath);
+            model.AdminMacaroon = macaroons?.AdminMacaroon?.Hex;
+            model.InvoiceMacaroon = macaroons?.InvoiceMacaroon?.Hex;
+            model.ReadonlyMacaroon = macaroons?.ReadonlyMacaroon?.Hex;
 
             if (nonce != null)
             {
-                var configKey = GetConfigKey("lnd-grpc", cryptoCode, index, nonce.Value);
+                var configKey = GetConfigKey("lnd", cryptoCode, index, nonce.Value);
                 var lnConfig = _LnConfigProvider.GetConfig(configKey);
                 if (lnConfig != null)
                 {
@@ -490,29 +619,46 @@ namespace BTCPayServer.Controllers
             return Json(conf);
         }
 
-        [Route("server/services/lnd-grpc/{cryptoCode}/{index}")]
+        [Route("server/services/lnd/{cryptoCode}/{index}")]
         [HttpPost]
-        public IActionResult LndGrpcServicesPost(string cryptoCode, int index)
+        public async Task<IActionResult> LndServicesPost(string cryptoCode, int index)
         {
             var external = GetExternalLndConnectionString(cryptoCode, index);
             if (external == null)
                 return NotFound();
             LightningConfigurations confs = new LightningConfigurations();
-            LightningConfiguration conf = new LightningConfiguration();
-            conf.Type = "grpc";
-            conf.ChainType = _Options.NetworkType.ToString();
-            conf.CryptoCode = cryptoCode;
-            conf.Host = external.BaseUri.DnsSafeHost;
-            conf.Port = external.BaseUri.Port;
-            conf.SSL = external.BaseUri.Scheme == "https";
-            conf.Macaroon = external.Macaroon == null ? null : Encoders.Hex.EncodeData(external.Macaroon);
-            conf.CertificateThumbprint = external.CertificateThumbprint == null ? null : Encoders.Hex.EncodeData(external.CertificateThumbprint);
-            confs.Configurations.Add(conf);
+            var macaroons = external.MacaroonDirectoryPath == null ? null : await Macaroons.GetFromDirectoryAsync(external.MacaroonDirectoryPath);
+            if (external.ConnectionType == LightningConnectionType.LndGRPC)
+            {
+                LightningConfiguration grpcConf = new LightningConfiguration();
+                grpcConf.Type = "grpc";
+                grpcConf.Host = external.BaseUri.DnsSafeHost;
+                grpcConf.Port = external.BaseUri.Port;
+                grpcConf.SSL = external.BaseUri.Scheme == "https";
+                confs.Configurations.Add(grpcConf);
+            }
+            else if (external.ConnectionType == LightningConnectionType.LndREST)
+            {
+                var restconf = new LNDRestConfiguration();
+                restconf.Type = "lnd-rest";
+                restconf.Uri = external.BaseUri.AbsoluteUri;
+                confs.Configurations.Add(restconf);
+            }
+            else
+                throw new NotSupportedException(external.ConnectionType.ToString());
+            var commonConf = (LNDConfiguration)confs.Configurations[confs.Configurations.Count - 1];
+            commonConf.ChainType = _Options.NetworkType.ToString();
+            commonConf.CryptoCode = cryptoCode;
+            commonConf.Macaroon = external.Macaroon == null ? null : Encoders.Hex.EncodeData(external.Macaroon);
+            commonConf.CertificateThumbprint = external.CertificateThumbprint == null ? null : Encoders.Hex.EncodeData(external.CertificateThumbprint);
+            commonConf.AdminMacaroon = macaroons?.AdminMacaroon?.Hex;
+            commonConf.ReadonlyMacaroon = macaroons?.ReadonlyMacaroon?.Hex;
+            commonConf.InvoiceMacaroon = macaroons?.InvoiceMacaroon?.Hex;
 
             var nonce = RandomUtils.GetUInt32();
-            var configKey = GetConfigKey("lnd-grpc", cryptoCode, index, nonce);
+            var configKey = GetConfigKey("lnd", cryptoCode, index, nonce);
             _LnConfigProvider.KeepConfig(configKey, confs);
-            return RedirectToAction(nameof(LndGrpcServices), new { cryptoCode = cryptoCode, nonce = nonce });
+            return RedirectToAction(nameof(LndServices), new { cryptoCode = cryptoCode, nonce = nonce });
         }
 
         private LightningConnectionString GetExternalLndConnectionString(string cryptoCode, int index)
@@ -537,28 +683,6 @@ namespace BTCPayServer.Controllers
             return connectionString;
         }
 
-        [Route("server/services/lnd-rest/{cryptoCode}/{index}")]
-        public IActionResult LndRestServices(string cryptoCode, int index, uint? nonce)
-        {
-            if (!_dashBoard.IsFullySynched(cryptoCode, out var unusud))
-            {
-                StatusMessage = $"Error: {cryptoCode} is not fully synched";
-                return RedirectToAction(nameof(Services));
-            }
-            var external = GetExternalLndConnectionString(cryptoCode, index);
-            if (external == null)
-                return NotFound();
-            var model = new LndRestServicesViewModel();
-
-            model.BaseApiUrl = external.BaseUri.ToString();
-            if (external.CertificateThumbprint != null)
-                model.CertificateThumbprint = Encoders.Hex.EncodeData(external.CertificateThumbprint);
-            if (external.Macaroon != null)
-                model.Macaroon = Encoders.Hex.EncodeData(external.Macaroon);
-
-            return View(model);
-        }
-
         [Route("server/services/ssh")]
         public IActionResult SSHService(bool downloadKeyFile = false)
         {
@@ -625,5 +749,66 @@ namespace BTCPayServer.Controllers
                 return View(model);
             }
         }
+
+        [Route("server/logs/{file?}")]
+        public async Task<IActionResult> LogsView(string file = null, int offset = 0)
+        {
+            if (offset < 0)
+            {
+                offset = 0;
+            }
+
+            var vm = new LogsViewModel();
+
+            if (string.IsNullOrEmpty(_Options.LogFile))
+            {
+                vm.StatusMessage = "Error: File Logging Option not specified. " +
+                                   "You need to set debuglog and optionally " +
+                                   "debugloglevel in the configuration or through runtime arguments";
+            }
+            else
+            {
+                var di = Directory.GetParent(_Options.LogFile);
+                if (di == null)
+                {
+                    vm.StatusMessage = "Error: Could not load log files";
+                }
+
+                var fileNameWithoutExtension = Path.GetFileNameWithoutExtension(_Options.LogFile);
+                var fileExtension = Path.GetExtension(_Options.LogFile) ?? string.Empty;
+                var logFiles = di.GetFiles($"{fileNameWithoutExtension}*{fileExtension}");
+                vm.LogFileCount = logFiles.Length;
+                vm.LogFiles = logFiles
+                    .OrderBy(info => info.LastWriteTime)
+                    .Skip(offset)
+                    .Take(5)
+                    .ToList();
+                vm.LogFileOffset = offset;
+
+                if (string.IsNullOrEmpty(file)) return View("Logs", vm);
+                vm.Log = "";
+                var path = Path.Combine(di.FullName, file);
+                try
+                {
+                    using (var fileStream = new FileStream(
+                        path,
+                        FileMode.Open,
+                        FileAccess.Read,
+                        FileShare.ReadWrite))
+                    {
+                        using (var reader = new StreamReader(fileStream))
+                        {
+                            vm.Log = await reader.ReadToEndAsync();
+                        }
+                    }
+                }
+                catch
+                {
+                    return NotFound();
+                }
+            }
+
+            return View("Logs", vm);
+        }
     }
 }

BTCPayServer/Controllers/StoresController.BTCLike.cs

@@ -46,7 +46,7 @@ namespace BTCPayServer.Controllers
             string storeId,
             string cryptoCode,
             string command,
-            int account = 0)
+            string keyPath = "")
         {
             if (!HttpContext.WebSockets.IsWebSocketRequest)
                 return NotFound();
@@ -67,7 +67,10 @@ namespace BTCPayServer.Controllers
                     }
                     if (command == "getxpub")
                     {
-                        var getxpubResult = await hw.GetExtPubKey(network, account, normalOperationTimeout.Token);
+                        var k = KeyPath.Parse(keyPath);
+                        if (k.Indexes.Length == 0)
+                            throw new FormatException("Invalid key path");
+                        var getxpubResult = await hw.GetExtPubKey(network, k, normalOperationTimeout.Token);
                         result = getxpubResult;
                     }
                 }
@@ -163,6 +166,7 @@ namespace BTCPayServer.Controllers
                               // - The user is clicking on continue without changing anything   
                               (!vm.Confirmation && willBeExcluded == wasExcluded);
 
+            showAddress = showAddress && strategy != null;
             if (!showAddress)
             {
                 try
@@ -170,7 +174,8 @@ namespace BTCPayServer.Controllers
                     if (strategy != null)
                         await wallet.TrackAsync(strategy.DerivationStrategyBase);
                     store.SetSupportedPaymentMethod(paymentMethodId, strategy);
-                    storeBlob.SetExcluded(paymentMethodId, willBeExcluded);
+                    storeBlob.SetExcluded(paymentMethodId, willBeExcluded);                    
+                    storeBlob.SetWalletKeyPathRoot(paymentMethodId, vm.KeyPath == null ? null : KeyPath.Parse(vm.KeyPath));
                     store.SetStoreBlob(storeBlob);
                 }
                 catch

BTCPayServer/Controllers/StoresController.CoinSwitch.cs

@@ -0,0 +1,72 @@
+using System.Threading.Tasks;
+using BTCPayServer.Data;
+using BTCPayServer.Models.StoreViewModels;
+using BTCPayServer.Payments.CoinSwitch;
+using Microsoft.AspNetCore.Mvc;
+
+namespace BTCPayServer.Controllers
+{
+    public partial class StoresController
+    {
+        [HttpGet]
+        [Route("{storeId}/coinswitch")]
+        public IActionResult UpdateCoinSwitchSettings(string storeId)
+        {
+            var store = HttpContext.GetStoreData();
+            if (store == null)
+                return NotFound();
+            UpdateCoinSwitchSettingsViewModel vm = new UpdateCoinSwitchSettingsViewModel();
+            SetExistingValues(store, vm);
+            return View(vm);
+        }
+
+        private void SetExistingValues(StoreData store, UpdateCoinSwitchSettingsViewModel vm)
+        {
+
+            var existing = store.GetStoreBlob().CoinSwitchSettings;
+            if (existing == null) return;
+            vm.MerchantId = existing.MerchantId;
+            vm.Enabled = existing.Enabled;
+            vm.Mode = existing.Mode;
+        }
+
+        [HttpPost]
+        [Route("{storeId}/coinswitch")]
+        public async Task<IActionResult> UpdateCoinSwitchSettings(string storeId, UpdateCoinSwitchSettingsViewModel vm,
+            string command)
+        {
+            var store = HttpContext.GetStoreData();
+            if (store == null)
+                return NotFound();
+            if (vm.Enabled)
+            {
+                if (!ModelState.IsValid)
+                {
+                    return View(vm);
+                }
+            }
+
+            var coinSwitchSettings = new CoinSwitchSettings()
+            {
+                MerchantId =  vm.MerchantId,
+                Enabled = vm.Enabled,
+                Mode = vm.Mode
+            };
+            
+            switch (command)
+            {
+                case "save":
+                    var storeBlob = store.GetStoreBlob();
+                    storeBlob.CoinSwitchSettings = coinSwitchSettings;
+                    store.SetStoreBlob(storeBlob);
+                    await _Repo.UpdateStore(store);
+                    StatusMessage = "CoinSwitch settings modified";
+                    return RedirectToAction(nameof(UpdateStore), new {
+                        storeId});
+
+                default:
+                    return View(vm);
+            }
+        }
+    }
+}

BTCPayServer/Controllers/StoresController.Email.cs

@@ -0,0 +1,65 @@
+using System;
+using System.Threading.Tasks;
+using BTCPayServer.Data;
+using BTCPayServer.Models.ServerViewModels;
+using BTCPayServer.Models.StoreViewModels;
+using BTCPayServer.Payments.Changelly;
+using BTCPayServer.Services.Mails;
+using Microsoft.AspNetCore.Mvc;
+
+namespace BTCPayServer.Controllers
+{
+    public partial class StoresController
+    {
+        
+        [Route("{storeId}/emails")]
+        public IActionResult Emails()
+        {
+            var store = HttpContext.GetStoreData();
+            if (store == null)
+                return NotFound();
+            var data = store.GetStoreBlob().EmailSettings ?? new EmailSettings();
+            return View(new EmailsViewModel() { Settings = data });
+        }
+        
+        [Route("{storeId}/emails")]
+        [HttpPost]
+        public async Task<IActionResult> Emails(string storeId, EmailsViewModel model, string command)
+        {
+            var store = HttpContext.GetStoreData();
+            if (store == null)
+                return NotFound();
+            if (command == "Test")
+            {
+                try
+                {
+                    if (!model.Settings.IsComplete())
+                    {
+                        model.StatusMessage = "Error: Required fields missing";
+                        return View(model);
+                    }
+                    var client = model.Settings.CreateSmtpClient();
+                    await client.SendMailAsync(model.Settings.From, model.TestEmail, "BTCPay test", "BTCPay test");
+                    model.StatusMessage = "Email sent to " + model.TestEmail + ", please, verify you received it";
+                }
+                catch (Exception ex)
+                {
+                    model.StatusMessage = "Error: " + ex.Message;
+                }
+                return View(model);
+            }
+            else // if(command == "Save")
+            {
+                
+                var storeBlob = store.GetStoreBlob();
+                storeBlob.EmailSettings = model.Settings;
+                store.SetStoreBlob(storeBlob);
+                await _Repo.UpdateStore(store);
+                StatusMessage = "Email settings modified";
+                return RedirectToAction(nameof(UpdateStore), new {
+                    storeId});
+
+            }
+        }
+    }
+}

BTCPayServer/Controllers/StoresController.LightningLike.cs

@@ -27,7 +27,8 @@ namespace BTCPayServer.Controllers
             LightningNodeViewModel vm = new LightningNodeViewModel
             {
                 CryptoCode = cryptoCode,
-                InternalLightningNode = GetInternalLighningNode(cryptoCode)?.ToString()
+                InternalLightningNode = GetInternalLighningNode(cryptoCode)?.ToString(),
+                StoreId = storeId
             };
             SetExistingValues(store, vm);
             return View(vm);
@@ -154,7 +155,7 @@ namespace BTCPayServer.Controllers
                     var handler = (LightningLikePaymentHandler)_ServiceProvider.GetRequiredService<IPaymentMethodHandler<Payments.Lightning.LightningSupportedPaymentMethod>>();
                     try
                     {
-                        var info = await handler.Test(paymentMethod, network);
+                        var info = await handler.GetNodeInfo(paymentMethod, network);
                         if (!vm.SkipPortTest)
                         {
                             using (CancellationTokenSource cts = new CancellationTokenSource(TimeSpan.FromSeconds(20)))

BTCPayServer/Controllers/StoresController.cs

@@ -10,7 +10,9 @@ using BTCPayServer.Data;
 using BTCPayServer.Models;
 using BTCPayServer.Models.AppViewModels;
 using BTCPayServer.Models.StoreViewModels;
+using BTCPayServer.Payments;
 using BTCPayServer.Payments.Changelly;
+using BTCPayServer.Payments.Lightning;
 using BTCPayServer.Rating;
 using BTCPayServer.Security;
 using BTCPayServer.Services;
@@ -94,6 +96,11 @@ namespace BTCPayServer.Controllers
         {
             get; set;
         }
+        [TempData]
+        public bool StoreNotConfigured
+        {
+            get; set;
+        }
 
         [HttpGet]
         [Route("{storeId}/users")]
@@ -165,7 +172,7 @@ namespace BTCPayServer.Controllers
             return View("Confirm", new ConfirmModel()
             {
                 Title = $"Remove store user",
-                Description = $"Are you sure to remove access to remove access to {user.Email}?",
+                Description = $"Are you sure you want to remove store access for {user.Email}?",
                 Action = "Delete"
             });
         }
@@ -406,7 +413,7 @@ namespace BTCPayServer.Controllers
             vm.Id = store.Id;
             vm.StoreName = store.StoreName;
             vm.StoreWebsite = store.StoreWebsite;
-            vm.NetworkFee = !storeBlob.NetworkFeeDisabled;
+            vm.NetworkFeeMode = storeBlob.NetworkFeeMode;
             vm.AnyoneCanCreateInvoice = storeBlob.AnyoneCanInvoice;
             vm.SpeedPolicy = store.SpeedPolicy;
             vm.CanDelete = _Repo.CanDeleteStores();
@@ -464,6 +471,14 @@ namespace BTCPayServer.Controllers
                 Action = nameof(UpdateChangellySettings),
                 Provider = "Changelly"
             });
+            
+            var coinSwitchEnabled = storeBlob.CoinSwitchSettings != null && storeBlob.CoinSwitchSettings.Enabled;
+            vm.ThirdPartyPaymentMethods.Add(new StoreViewModel.ThirdPartyPaymentMethod()
+            {
+                Enabled = coinSwitchEnabled,
+                Action = nameof(UpdateCoinSwitchSettings),
+                Provider = "CoinSwitch"
+            });
         }
 
         [HttpPost]
@@ -489,7 +504,7 @@ namespace BTCPayServer.Controllers
 
             var blob = StoreData.GetStoreBlob();
             blob.AnyoneCanInvoice = model.AnyoneCanCreateInvoice;
-            blob.NetworkFeeDisabled = !model.NetworkFee;
+            blob.NetworkFeeMode = model.NetworkFeeMode;
             blob.MonitoringExpiration = model.MonitoringExpiration;
             blob.InvoiceExpiration = model.InvoiceExpiration;
             blob.LightningDescriptionTemplate = model.LightningDescriptionTemplate ?? string.Empty;
@@ -557,6 +572,7 @@ namespace BTCPayServer.Controllers
             var model = new TokensViewModel();
             var tokens = await _TokenRepository.GetTokensByStoreIdAsync(StoreData.Id);
             model.StatusMessage = StatusMessage;
+            model.StoreNotConfigured = StoreNotConfigured;
             model.Tokens = tokens.Select(t => new TokenViewModel()
             {
                 Facade = t.Facade,
@@ -784,12 +800,17 @@ namespace BTCPayServer.Controllers
             var pairingResult = await _TokenRepository.PairWithStoreAsync(pairingCode, store.Id);
             if (pairingResult == PairingResult.Complete || pairingResult == PairingResult.Partial)
             {
+                var excludeFilter = store.GetStoreBlob().GetExcludedPaymentMethods();
+                StoreNotConfigured = store.GetSupportedPaymentMethods(_NetworkProvider)
+                                          .Where(p => !excludeFilter.Match(p.PaymentId))
+                                          .Count() == 0;
                 StatusMessage = "Pairing is successful";
                 if (pairingResult == PairingResult.Partial)
                     StatusMessage = "Server initiated pairing code: " + pairingCode;
                 return RedirectToAction(nameof(ListTokens), new
                 {
-                    storeId = store.Id
+                    storeId = store.Id,
+                    pairingCode = pairingCode
                 });
             }
             else

BTCPayServer/Controllers/WalletsController.cs

@@ -135,6 +135,7 @@ namespace BTCPayServer.Controllers
                 vm.Timestamp = tx.Timestamp;
                 vm.Positive = tx.BalanceChange >= Money.Zero;
                 vm.Balance = tx.BalanceChange.ToString();
+                vm.IsConfirmed = tx.Confirmations != 0;
             }
             model.Transactions = model.Transactions.OrderByDescending(t => t.Timestamp).ToList();
             return View(model);
@@ -145,7 +146,7 @@ namespace BTCPayServer.Controllers
         [Route("{walletId}/send")]
         public async Task<IActionResult> WalletSend(
             [ModelBinder(typeof(WalletIdModelBinder))]
-            WalletId walletId, string defaultDestination = null, string defaultAmount = null)
+            WalletId walletId, string defaultDestination = null, string defaultAmount = null, bool advancedMode = false)
         {
             if (walletId?.StoreId == null)
                 return NotFound();
@@ -194,6 +195,7 @@ namespace BTCPayServer.Controllers
                 }
                 catch (Exception ex) { model.RateError = ex.Message; }
             }
+            model.AdvancedMode = advancedMode;
             return View(model);
         }
 
@@ -201,7 +203,7 @@ namespace BTCPayServer.Controllers
         [Route("{walletId}/send")]
         public async Task<IActionResult> WalletSend(
             [ModelBinder(typeof(WalletIdModelBinder))]
-            WalletId walletId, WalletSendModel vm)
+            WalletId walletId, WalletSendModel vm, string command = null)
         {
             if (walletId?.StoreId == null)
                 return NotFound();
@@ -211,6 +213,14 @@ namespace BTCPayServer.Controllers
             var network = this.NetworkProvider.GetNetwork(walletId?.CryptoCode);
             if (network == null)
                 return NotFound();
+
+            if (command == "noob" || command == "expert")
+            {
+                ModelState.Clear();
+                vm.AdvancedMode = command == "expert";
+                return View(vm);
+            }
+
             var destination = ParseDestination(vm.Destination, network.NBitcoinNetwork);
             if (destination == null)
                 ModelState.AddModelError(nameof(vm.Destination), "Invalid address");
@@ -230,7 +240,8 @@ namespace BTCPayServer.Controllers
                 Destination = vm.Destination,
                 Amount = vm.Amount.Value,
                 SubstractFees = vm.SubstractFees,
-                FeeSatoshiPerByte = vm.FeeSatoshiPerByte
+                FeeSatoshiPerByte = vm.FeeSatoshiPerByte,
+                NoChange = vm.NoChange
             });
         }
 
@@ -402,6 +413,7 @@ namespace BTCPayServer.Controllers
             // getxpub
             int account = 0,
             // sendtoaddress
+            bool noChange = false,
             string destination = null, string amount = null, string feeRate = null, string substractFees = null
             )
         {
@@ -409,8 +421,8 @@ namespace BTCPayServer.Controllers
                 return NotFound();
 
             var cryptoCode = walletId.CryptoCode;
-            var storeBlob = (await Repository.FindStore(walletId.StoreId, GetUserId()));
-            var derivationScheme = GetPaymentMethod(walletId, storeBlob).DerivationStrategyBase;
+            var storeData = (await Repository.FindStore(walletId.StoreId, GetUserId()));
+            var derivationScheme = GetPaymentMethod(walletId, storeData).DerivationStrategyBase;
 
             var webSocket = await HttpContext.WebSockets.AcceptWebSocketAsync();
 
@@ -435,7 +447,7 @@ namespace BTCPayServer.Controllers
                     {
                         try
                         {
-                            destinationAddress = BitcoinAddress.Create(destination, network.NBitcoinNetwork);
+                            destinationAddress = BitcoinAddress.Create(destination.Trim(), network.NBitcoinNetwork);
                         }
                         catch { }
                         if (destinationAddress == null)
@@ -475,15 +487,6 @@ namespace BTCPayServer.Controllers
                         }
                         catch { throw new FormatException("Invalid value for subtract fees"); }
                     }
-                    if (command == "getinfo")
-                    {
-                        var strategy = GetDirectDerivationStrategy(derivationScheme);
-                        if (strategy == null || await hw.GetKeyPath(network, strategy, normalOperationTimeout.Token) == null)
-                        {
-                            throw new Exception($"This store is not configured to use this ledger");
-                        }
-                        result = new GetInfoResult();
-                    }
                     if (command == "test")
                     {
                         result = await hw.Test(normalOperationTimeout.Token);
@@ -495,9 +498,32 @@ namespace BTCPayServer.Controllers
                         var strategy = GetDirectDerivationStrategy(derivationScheme);
                         var wallet = _walletProvider.GetWallet(network);
                         var change = wallet.GetChangeAddressAsync(derivationScheme);
+                        var keypaths = new Dictionary<Script, KeyPath>();
+                        List<Coin> availableCoins = new List<Coin>();
+                        foreach (var c in await wallet.GetUnspentCoins(derivationScheme))
+                        {
+                            keypaths.TryAdd(c.Coin.ScriptPubKey, c.KeyPath);
+                            availableCoins.Add(c.Coin);
+                        }
 
-                        var unspentCoins = await wallet.GetUnspentCoins(derivationScheme);
                         var changeAddress = await change;
+
+                        var storeBlob = storeData.GetStoreBlob();
+                        var paymentId = new Payments.PaymentMethodId(cryptoCode, Payments.PaymentTypes.BTCLike);
+                        var foundKeyPath = storeBlob.GetWalletKeyPathRoot(paymentId);
+                        // Some deployment have the wallet root key path saved in the store blob
+                        // If it does, we only have to make 1 call to the hw to check if it can sign the given strategy,
+                        if (foundKeyPath == null || !await hw.CanSign(network, strategy, foundKeyPath, normalOperationTimeout.Token))
+                        {
+                            // If the saved wallet key path is not present or incorrect, let's scan the wallet to see if it can sign strategy
+                            foundKeyPath = await hw.FindKeyPath(network, strategy, normalOperationTimeout.Token);
+                            if (foundKeyPath == null)
+                                throw new HardwareWalletException($"This store is not configured to use this ledger");
+                            storeBlob.SetWalletKeyPathRoot(paymentId, foundKeyPath);
+                            storeData.SetStoreBlob(storeBlob);
+                            await Repository.UpdateStore(storeData);
+                        }
+retry:
                         var send = new[] { (
                         destination: destinationAddress as IDestination,
                         amount: amountBTC,
@@ -513,15 +539,9 @@ namespace BTCPayServer.Controllers
                                 throw new ArgumentOutOfRangeException(nameof(element.amount), "The amount should be above zero");
                         }
 
-                        var foundKeyPath = await hw.GetKeyPath(network, strategy, normalOperationTimeout.Token);
-                        if (foundKeyPath == null)
-                        {
-                            throw new HardwareWalletException($"This store is not configured to use this ledger");
-                        }
-
                         TransactionBuilder builder = network.NBitcoinNetwork.CreateTransactionBuilder();
                         builder.StandardTransactionPolicy.MinRelayTxFee = summary.Status.BitcoinStatus.MinRelayTxFee;
-                        builder.AddCoins(unspentCoins.Select(c => c.Coin).ToArray());
+                        builder.AddCoins(availableCoins);
 
                         foreach (var element in send)
                         {
@@ -529,6 +549,7 @@ namespace BTCPayServer.Controllers
                             if (element.substractFees)
                                 builder.SubtractFees();
                         }
+
                         builder.SetChange(changeAddress.Item1);
 
                         if (network.MinFee == null)
@@ -545,13 +566,15 @@ namespace BTCPayServer.Controllers
                         }
                         var unsigned = builder.BuildTransaction(false);
 
-                        var keypaths = new Dictionary<Script, KeyPath>();
-                        foreach (var c in unspentCoins)
+                        var hasChange = unsigned.Outputs.Any(o => o.ScriptPubKey == changeAddress.Item1.ScriptPubKey);
+                        if (noChange && hasChange)
                         {
-                            keypaths.TryAdd(c.Coin.ScriptPubKey, c.KeyPath);
+                            availableCoins = builder.FindSpentCoins(unsigned).Cast<Coin>().ToList();
+                            amountBTC = builder.FindSpentCoins(unsigned).Select(c => c.TxOut.Value).Sum();
+                            subsctractFeesValue = true;
+                            goto retry;
                         }
 
-                        var hasChange = unsigned.Outputs.Count == 2;
                         var usedCoins = builder.FindSpentCoins(unsigned);
 
                         Dictionary<uint256, Transaction> parentTransactions = new Dictionary<uint256, Transaction>();

BTCPayServer/Crowdfund/CrowdfundHub.cs

@@ -0,0 +1,66 @@
+using System;
+using System.Threading.Tasks;
+using BTCPayServer.Controllers;
+using BTCPayServer.Models.AppViewModels;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.SignalR;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace BTCPayServer.Hubs
+{
+    public class CrowdfundHub: Hub
+    {
+        public const string InvoiceCreated = "InvoiceCreated";
+        public const string PaymentReceived = "PaymentReceived";
+        public const string InfoUpdated = "InfoUpdated";
+        public const string InvoiceError = "InvoiceError";
+        private readonly AppsPublicController _AppsPublicController;
+
+        public CrowdfundHub(AppsPublicController appsPublicController)
+        {
+            _AppsPublicController = appsPublicController;
+        }
+        public async Task ListenToCrowdfundApp(string appId)
+        {
+            if (Context.Items.ContainsKey("app"))
+            {
+                await Groups.RemoveFromGroupAsync(Context.ConnectionId, Context.Items["app"].ToString());
+                Context.Items.Remove("app");
+            }
+            Context.Items.Add("app", appId);
+            await Groups.AddToGroupAsync(Context.ConnectionId, appId);
+        }
+
+
+        public async Task CreateInvoice(ContributeToCrowdfund model)
+        {
+               model.RedirectToCheckout = false;
+               _AppsPublicController.ControllerContext.HttpContext = Context.GetHttpContext();
+               try
+               {
+
+                   var result =
+                       await _AppsPublicController.ContributeToCrowdfund(Context.Items["app"].ToString(), model);
+                   switch (result)
+                   {
+                       case OkObjectResult okObjectResult:
+                           await Clients.Caller.SendCoreAsync(InvoiceCreated, new[] {okObjectResult.Value.ToString()});
+                           break;
+                       case ObjectResult objectResult:
+                           await Clients.Caller.SendCoreAsync(InvoiceError, new[] {objectResult.Value});
+                           break;
+                       default:
+                           await Clients.Caller.SendCoreAsync(InvoiceError, System.Array.Empty<object>());
+                           break;
+                   }
+               }
+               catch (Exception)
+               {
+                   await Clients.Caller.SendCoreAsync(InvoiceError, System.Array.Empty<object>());
+
+               }
+
+        }
+
+    }
+}

BTCPayServer/Crowdfund/CrowdfundHubStreamer.cs

@@ -0,0 +1,371 @@
+using System;
+using System.Collections.Concurrent;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using BTCPayServer.Controllers;
+using BTCPayServer.Data;
+using BTCPayServer.Events;
+using BTCPayServer.Hubs;
+using BTCPayServer.Models.AppViewModels;
+using BTCPayServer.Payments;
+using BTCPayServer.Rating;
+using BTCPayServer.Services.Apps;
+using BTCPayServer.Services.Invoices;
+using BTCPayServer.Services.Rates;
+using Microsoft.AspNetCore.SignalR;
+using Microsoft.Extensions.Caching.Memory;
+using Microsoft.Extensions.Logging;
+using NBitcoin;
+
+namespace BTCPayServer.Crowdfund
+{
+    public class CrowdfundHubStreamer: IDisposable
+    {
+        public const string CrowdfundInvoiceOrderIdPrefix = "crowdfund-app_";
+        private readonly EventAggregator _EventAggregator;
+        private readonly IHubContext<CrowdfundHub> _HubContext;
+        private readonly IMemoryCache _MemoryCache;
+        private readonly AppsHelper _AppsHelper;
+        private readonly RateFetcher _RateFetcher;
+        private readonly BTCPayNetworkProvider _BtcPayNetworkProvider;
+        private readonly InvoiceRepository _InvoiceRepository;
+        private readonly ILogger<CrowdfundHubStreamer> _Logger;
+
+        private readonly ConcurrentDictionary<string,(string appId, bool useAllStoreInvoices,bool useInvoiceAmount)> _QuickAppInvoiceLookup = 
+            new ConcurrentDictionary<string, (string appId, bool useAllStoreInvoices, bool useInvoiceAmount)>();
+
+        private List<IEventAggregatorSubscription> _Subscriptions;
+
+        public CrowdfundHubStreamer(EventAggregator eventAggregator, 
+            IHubContext<CrowdfundHub> hubContext, 
+            IMemoryCache memoryCache,
+            AppsHelper appsHelper, 
+            RateFetcher rateFetcher,
+            BTCPayNetworkProvider btcPayNetworkProvider,
+            InvoiceRepository invoiceRepository,
+            ILogger<CrowdfundHubStreamer> logger)
+        {
+            _EventAggregator = eventAggregator;
+            _HubContext = hubContext;
+            _MemoryCache = memoryCache;
+            _AppsHelper = appsHelper;
+            _RateFetcher = rateFetcher;
+            _BtcPayNetworkProvider = btcPayNetworkProvider;
+            _InvoiceRepository = invoiceRepository;
+            _Logger = logger;
+#pragma warning disable 4014
+            InitLookup();
+#pragma warning restore 4014
+            SubscribeToEvents();
+        }
+
+        private async Task InitLookup()
+        {
+          var apps =  await _AppsHelper.GetAllApps(null, true);
+          apps = apps.Where(model => Enum.Parse<AppType>(model.AppType) == AppType.Crowdfund).ToArray();
+          var tasks = new List<Task>();
+          tasks.AddRange(apps.Select(app => Task.Run(async () =>
+          {
+              var fullApp = await _AppsHelper.GetApp(app.Id, AppType.Crowdfund, false);
+              var settings = fullApp.GetSettings<AppsController.CrowdfundSettings>();
+              UpdateLookup(app.Id, app.StoreId, settings);
+          })));
+          await Task.WhenAll(tasks);
+        }
+
+        private void UpdateLookup(string appId, string storeId, AppsController.CrowdfundSettings settings)
+        {
+            _QuickAppInvoiceLookup.AddOrReplace(storeId,
+                (
+                    appId: appId,
+                    useAllStoreInvoices: settings?.UseAllStoreInvoices ?? false,
+                    useInvoiceAmount: settings?.UseInvoiceAmount ?? false
+                ));
+        }
+
+        public Task<ViewCrowdfundViewModel> GetCrowdfundInfo(string appId)
+        {
+            return _MemoryCache.GetOrCreateAsync(GetCacheKey(appId), async entry =>
+            {           
+                _Logger.LogInformation($"GetCrowdfundInfo {appId}");
+                var app = await _AppsHelper.GetApp(appId, AppType.Crowdfund, true);
+                var result = await GetInfo(app);
+                entry.SetValue(result);
+                
+                TimeSpan? expire = null;
+
+                if (result.StartDate.HasValue && result.StartDate < DateTime.Now)
+                {
+                    expire = result.StartDate.Value.Subtract(DateTime.Now);
+                }
+                else if (result.EndDate.HasValue && result.EndDate > DateTime.Now)
+                {
+                    expire = result.EndDate.Value.Subtract(DateTime.Now);
+                }
+                if(!expire.HasValue || expire?.TotalMinutes > 5 ||  expire?.TotalMilliseconds <= 0)
+                {
+                    expire = TimeSpan.FromMinutes(5);
+                }
+
+                entry.AbsoluteExpirationRelativeToNow = expire;
+                return result;
+            });
+        }
+
+        private void SubscribeToEvents()
+        {
+            _Subscriptions = new List<IEventAggregatorSubscription>()
+            {
+                _EventAggregator.Subscribe<InvoiceEvent>(OnInvoiceEvent),
+                _EventAggregator.Subscribe<AppsController.CrowdfundAppUpdated>(updated =>
+                {
+                    UpdateLookup(updated.AppId, updated.StoreId, updated.Settings);
+                    InvalidateCacheForApp(updated.AppId);
+                })
+            };
+        }
+
+        private string GetCacheKey(string appId)
+        {
+            return $"{CrowdfundInvoiceOrderIdPrefix}:{appId}";
+        }
+
+        private void OnInvoiceEvent(InvoiceEvent invoiceEvent)
+        {
+            if (!_QuickAppInvoiceLookup.TryGetValue(invoiceEvent.Invoice.StoreId, out var quickLookup) ||
+                (!quickLookup.useAllStoreInvoices && 
+                 !string.IsNullOrEmpty(invoiceEvent.Invoice.OrderId) &&
+                !invoiceEvent.Invoice.OrderId.Equals($"{CrowdfundInvoiceOrderIdPrefix}{quickLookup.appId}", StringComparison.InvariantCulture)
+                ))
+            {
+                return;
+            }
+            
+            switch (invoiceEvent.Name)
+            {
+                case InvoiceEvent.ReceivedPayment:
+                    var data = invoiceEvent.Payment.GetCryptoPaymentData();
+                    _HubContext.Clients.Group(quickLookup.appId).SendCoreAsync(CrowdfundHub.PaymentReceived, new object[]
+                    {
+                        data.GetValue(), 
+                        invoiceEvent.Payment.GetCryptoCode(), 
+                        Enum.GetName(typeof(PaymentTypes), 
+                            invoiceEvent.Payment.GetPaymentMethodId().PaymentType)
+                    } );
+                    _Logger.LogInformation($"App {quickLookup.appId}: Received Payment");
+                    InvalidateCacheForApp(quickLookup.appId);
+                    break;
+                case InvoiceEvent.Created:
+                case InvoiceEvent.MarkedInvalid:
+                case InvoiceEvent.MarkedCompleted:
+                    if (quickLookup.useInvoiceAmount)
+                    {
+                        InvalidateCacheForApp(quickLookup.appId);
+                    }
+                    break;
+                case InvoiceEvent.Completed:
+                    InvalidateCacheForApp(quickLookup.appId);
+                    break;
+            }
+        }
+
+        private void InvalidateCacheForApp(string appId)
+        {
+            _Logger.LogInformation($"App {appId} cache invalidated");
+            _MemoryCache.Remove(GetCacheKey(appId));
+
+            GetCrowdfundInfo(appId).ContinueWith(task =>
+            {
+                _HubContext.Clients.Group(appId).SendCoreAsync(CrowdfundHub.InfoUpdated, new object[]{ task.Result} );
+            }, TaskScheduler.Current);
+            
+        }
+        
+        private async Task<decimal> GetCurrentContributionAmount(Dictionary<string, decimal> stats, string primaryCurrency, RateRules rateRules)
+        {
+            decimal result = 0;
+
+            var ratesTask = _RateFetcher .FetchRates(
+                stats.Keys
+                    .Select((x) => new CurrencyPair( primaryCurrency, PaymentMethodId.Parse(x).CryptoCode))
+                    .Distinct()
+                    .ToHashSet(), 
+                rateRules);
+
+            var finalTasks = new List<Task>();
+            foreach (var rateTask in ratesTask)
+            {
+                finalTasks.Add(Task.Run(async () =>
+                {
+                    var tResult = await rateTask.Value;
+                    var rate = tResult.BidAsk?.Bid;
+                    if (rate == null) return;
+
+                    foreach (var stat in stats)
+                    {
+                        if (string.Equals(PaymentMethodId.Parse(stat.Key).CryptoCode, rateTask.Key.Right,
+                            StringComparison.InvariantCultureIgnoreCase))
+                        {
+                            result += (1m / rate.Value) *  stat.Value;
+                        }
+                    }
+                }));
+            }
+
+            await Task.WhenAll(finalTasks);
+
+            return result;
+        }
+        
+        private static Dictionary<string, decimal> GetCurrentContributionAmountStats(InvoiceEntity[] invoices, bool usePaymentData = true)
+        {
+            if(usePaymentData){
+            var payments = invoices.SelectMany(entity => entity.GetPayments());
+
+            var groupedByMethod = payments.GroupBy(entity => entity.GetPaymentMethodId());
+
+            return groupedByMethod.ToDictionary(entities => entities.Key.ToString(),
+                entities => entities.Sum(entity => entity.GetCryptoPaymentData().GetValue()));
+            }
+            else
+            {
+                return invoices
+                    .GroupBy(entity => entity.ProductInformation.Currency)
+                    .ToDictionary(
+                        entities => entities.Key,
+                        entities => entities.Sum(entity => entity.ProductInformation.Price));
+            }
+        }
+        private async Task<ViewCrowdfundViewModel> GetInfo(AppData appData, string statusMessage= null)
+        {
+            var settings = appData.GetSettings<AppsController.CrowdfundSettings>();
+
+            var resetEvery = settings.StartDate.HasValue? settings.ResetEvery : CrowdfundResetEvery.Never;
+            DateTime? lastResetDate = null;
+            DateTime? nextResetDate = null;
+            if (resetEvery != CrowdfundResetEvery.Never)
+            {
+                lastResetDate = settings.StartDate.Value;
+                
+                nextResetDate = lastResetDate.Value;
+                while (DateTime.Now >= nextResetDate)
+                {
+                    lastResetDate = nextResetDate;
+                    switch (resetEvery)
+                    {
+                        case CrowdfundResetEvery.Hour:
+                            nextResetDate = lastResetDate.Value.AddHours(settings.ResetEveryAmount);
+                            break;
+                        case CrowdfundResetEvery.Day:
+                            nextResetDate = lastResetDate.Value.AddDays(settings.ResetEveryAmount);
+                            break;
+                        case CrowdfundResetEvery.Month:
+
+                            nextResetDate = lastResetDate.Value.AddMonths(settings.ResetEveryAmount);
+                            break;
+                        case CrowdfundResetEvery.Year:
+                            nextResetDate = lastResetDate.Value.AddYears(settings.ResetEveryAmount);
+                            break;
+                    }
+                }
+            }
+            
+            var invoices = await GetInvoicesForApp(settings.UseAllStoreInvoices? null : appData.Id, lastResetDate);
+            var completeInvoices = invoices.Where(entity => entity.Status == InvoiceStatus.Complete).ToArray();
+            var pendingInvoices = invoices.Where(entity => entity.Status != InvoiceStatus.Complete).ToArray();
+            
+            var rateRules = appData.StoreData.GetStoreBlob().GetRateRules(_BtcPayNetworkProvider);
+            
+            var pendingPaymentStats = GetCurrentContributionAmountStats(pendingInvoices, !settings.UseInvoiceAmount);
+            var paymentStats = GetCurrentContributionAmountStats(completeInvoices, !settings.UseInvoiceAmount); 
+            
+            var currentAmount = await GetCurrentContributionAmount(
+                paymentStats,
+                settings.TargetCurrency, rateRules); 
+            var currentPendingAmount =  await GetCurrentContributionAmount(
+                pendingPaymentStats,
+                settings.TargetCurrency, rateRules);
+
+            
+            
+            
+            var perkCount = invoices
+                .Where(entity => !string.IsNullOrEmpty( entity.ProductInformation.ItemCode))
+                .GroupBy(entity => entity.ProductInformation.ItemCode)
+                .ToDictionary(entities => entities.Key, entities => entities.Count());
+
+            var perks = _AppsHelper.Parse(settings.PerksTemplate, settings.TargetCurrency);
+            if (settings.SortPerksByPopularity)
+            {
+                var  ordered = perkCount.OrderByDescending(pair => pair.Value);
+                var newPerksOrder = ordered
+                    .Select(keyValuePair => perks.SingleOrDefault(item => item.Id == keyValuePair.Key))
+                    .Where(matchingPerk => matchingPerk != null)
+                    .ToList();
+                var remainingPerks = perks.Where(item => !newPerksOrder.Contains(item));
+                newPerksOrder.AddRange(remainingPerks);
+                perks = newPerksOrder.ToArray();
+            }    
+            return new ViewCrowdfundViewModel()
+            {
+                Title = settings.Title,
+                Tagline = settings.Tagline,
+                Description = settings.Description,
+                CustomCSSLink = settings.CustomCSSLink,
+                MainImageUrl = settings.MainImageUrl,
+                EmbeddedCSS = settings.EmbeddedCSS,
+                StoreId = appData.StoreDataId,
+                AppId = appData.Id,
+                StartDate = settings.StartDate?.ToUniversalTime(), 
+                EndDate = settings.EndDate?.ToUniversalTime(),
+                TargetAmount = settings.TargetAmount,
+                TargetCurrency = settings.TargetCurrency,
+                EnforceTargetAmount = settings.EnforceTargetAmount,
+                StatusMessage = statusMessage,
+                Perks = perks,
+                DisqusEnabled = settings.DisqusEnabled,
+                SoundsEnabled = settings.SoundsEnabled,
+                DisqusShortname = settings.DisqusShortname,
+                AnimationsEnabled = settings.AnimationsEnabled,
+                ResetEveryAmount = settings.ResetEveryAmount,
+                DisplayPerksRanking = settings.DisplayPerksRanking,
+                PerkCount = perkCount,
+                ResetEvery = Enum.GetName(typeof(CrowdfundResetEvery),settings.ResetEvery),
+                CurrencyData = _AppsHelper.GetCurrencyData(settings.TargetCurrency, true),
+                Info = new ViewCrowdfundViewModel.CrowdfundInfo()
+                {
+                    TotalContributors = invoices.Length,
+                    CurrentPendingAmount = currentPendingAmount,
+                    CurrentAmount = currentAmount,
+                    ProgressPercentage =   (currentAmount/ settings.TargetAmount) * 100,
+                    PendingProgressPercentage =  ( currentPendingAmount/ settings.TargetAmount) * 100,
+                    LastUpdated = DateTime.Now,
+                    PaymentStats = paymentStats,
+                    PendingPaymentStats = pendingPaymentStats,
+                    LastResetDate = lastResetDate,
+                    NextResetDate = nextResetDate
+                }
+            };
+        }
+
+        private async Task<InvoiceEntity[]> GetInvoicesForApp(string appId, DateTime? startDate = null)
+        {
+            return await  _InvoiceRepository.GetInvoices(new InvoiceQuery()
+            {
+                OrderId = appId == null? null : new []{$"{CrowdfundInvoiceOrderIdPrefix}{appId}"},
+                Status = new string[]{
+                    InvoiceState.ToString(InvoiceStatus.New),
+                    InvoiceState.ToString(InvoiceStatus.Paid), 
+                    InvoiceState.ToString(InvoiceStatus.Confirmed), 
+                    InvoiceState.ToString(InvoiceStatus.Complete)},
+                StartDate = startDate
+            });
+        }
+
+        public void Dispose()
+        {
+            _Subscriptions.ForEach(subscription => subscription.Dispose());
+        }
+    }
+}

BTCPayServer/Data/ApplicationDbContextFactory.cs

@@ -3,8 +3,6 @@ using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Threading.Tasks;
-using Hangfire;
-using Hangfire.MemoryStorage;
 using Microsoft.EntityFrameworkCore.Migrations;
 using Npgsql.EntityFrameworkCore.PostgreSQL.Migrations;
 using JetBrains.Annotations;
@@ -98,15 +96,5 @@ namespace BTCPayServer.Data
             else if (_Type == DatabaseType.MySQL)
                 builder.UseMySql(_ConnectionString);
         }
-
-        public void ConfigureHangfireBuilder(IGlobalConfiguration builder)
-        {
-            builder.UseMemoryStorage();
-            //We always use memory storage because of incompatibilities with the latest postgres in 2.1
-            //if (_Type == DatabaseType.Sqlite)
-            //    builder.UseMemoryStorage(); //Sqlite provider does not support multiple workers
-            //else if (_Type == DatabaseType.Postgres)
-            //    builder.UsePostgreSqlStorage(_ConnectionString);
-        }
     }
 }

BTCPayServer/Data/InvoiceData.cs

@@ -81,5 +81,10 @@ namespace BTCPayServer.Data
             get; set;
         }
         public List<PendingInvoiceData> PendingInvoices { get; set; }
+
+        public Services.Invoices.InvoiceState GetInvoiceState()
+        {
+            return new Services.Invoices.InvoiceState(Status, ExceptionStatus);
+        }
     }
 }

BTCPayServer/Data/StoreData.cs

@@ -18,8 +18,10 @@ using System.ComponentModel.DataAnnotations;
 using BTCPayServer.Services;
 using System.Security.Claims;
 using BTCPayServer.Payments.Changelly;
+using BTCPayServer.Payments.CoinSwitch;
 using BTCPayServer.Security;
 using BTCPayServer.Rating;
+using BTCPayServer.Services.Mails;
 
 namespace BTCPayServer.Data
 {
@@ -249,6 +251,12 @@ namespace BTCPayServer.Data
         }
     }
 
+    public enum NetworkFeeMode
+    {
+        MultiplePaymentsOnly,
+        Always,
+        Never
+    }
     public class StoreBlob
     {
         public StoreBlob()
@@ -258,10 +266,21 @@ namespace BTCPayServer.Data
             PaymentTolerance = 0;
             RequiresRefundEmail = true;
         }
-        public bool NetworkFeeDisabled
+
+        [Obsolete("Use NetworkFeeMode instead")]
+        [JsonProperty(DefaultValueHandling = DefaultValueHandling.Ignore)]
+        public bool? NetworkFeeDisabled
         {
             get; set;
         }
+
+        [JsonConverter(typeof(Newtonsoft.Json.Converters.StringEnumConverter))]
+        public NetworkFeeMode NetworkFeeMode
+        {
+            get;
+            set;
+        }
+
         public bool RequiresRefundEmail { get; set; }
 
         public string DefaultLang { get; set; }
@@ -305,6 +324,7 @@ namespace BTCPayServer.Data
         public bool AnyoneCanInvoice { get; set; }
         
         public ChangellySettings ChangellySettings { get; set; }
+        public CoinSwitchSettings CoinSwitchSettings { get; set; }
 
 
         string _LightningDescriptionTemplate;
@@ -366,6 +386,25 @@ namespace BTCPayServer.Data
 
         [Obsolete("Use GetExcludedPaymentMethods instead")]
         public string[] ExcludedPaymentMethods { get; set; }
+#pragma warning disable CS0618 // Type or member is obsolete
+        public void SetWalletKeyPathRoot(PaymentMethodId paymentMethodId, KeyPath keyPath)
+        {
+            if (keyPath == null)
+                WalletKeyPathRoots.Remove(paymentMethodId.ToString());
+            else
+                WalletKeyPathRoots.AddOrReplace(paymentMethodId.ToString().ToLowerInvariant(), keyPath.ToString());
+        }
+        public KeyPath GetWalletKeyPathRoot(PaymentMethodId paymentMethodId)
+        {
+            if (WalletKeyPathRoots.TryGetValue(paymentMethodId.ToString().ToLowerInvariant(), out var k))
+                return KeyPath.Parse(k);
+            return null;
+        }
+#pragma warning restore CS0618 // Type or member is obsolete
+        [Obsolete("Use SetWalletKeyPathRoot/GetWalletKeyPathRoot instead")]
+        public Dictionary<string, string> WalletKeyPathRoots { get; set; } = new Dictionary<string, string>();
+
+        public EmailSettings EmailSettings { get; set; }
 
         public IPaymentFilter GetExcludedPaymentMethods()
         {

BTCPayServer/DerivationSchemeParser.cs

@@ -63,10 +63,18 @@ namespace BTCPayServer
             electrumMapping.Add(p2wpkh, Array.Empty<string>());
 
             var parts = str.Split('-');
+            bool hasLabel = false;
             for (int i = 0; i < parts.Length; i++)
             {
                 if (IsLabel(parts[i]))
                 {
+                    if (!hasLabel)
+                    {
+                        hintedLabels.Clear();
+                        if (!Network.Consensus.SupportSegwit)
+                            hintedLabels.Add("legacy");
+                    }
+                    hasLabel = true;
                     hintedLabels.Add(parts[i].Substring(1, parts[i].Length - 2).ToLowerInvariant());
                     continue;
                 }

BTCPayServer/Events/InvoiceDataChangedEvent.cs

@@ -11,23 +11,14 @@ namespace BTCPayServer.Events
         public InvoiceDataChangedEvent(InvoiceEntity invoice)
         {
             InvoiceId = invoice.Id;
-            Status = invoice.Status;
-            ExceptionStatus = invoice.ExceptionStatus;
+            State = invoice.GetInvoiceState();
         }
-        public string InvoiceId { get; set; }
-        public string Status { get; internal set; }
-        public string ExceptionStatus { get; internal set; }
+        public string InvoiceId { get; }
+        public InvoiceState State { get; }
 
         public override string ToString()
         {
-            if (string.IsNullOrEmpty(ExceptionStatus) || ExceptionStatus == "false")
-            { 
-                return $"Invoice status is {Status}";
-            }
-            else
-            {
-                return $"Invoice status is {Status} (Exception status: {ExceptionStatus})";
-            }
+            return $"Invoice status is {State}";
         }
     }
 }

BTCPayServer/Events/InvoiceEvent.cs

@@ -8,6 +8,18 @@ namespace BTCPayServer.Events
 {
     public class InvoiceEvent
     {
+        public const string Created = "invoice_created";
+        public const string ReceivedPayment = "invoice_receivedPayment";
+        public const string MarkedCompleted = "invoice_markedComplete";
+        public const string MarkedInvalid= "invoice_markedInvalid";
+        public const string Expired= "invoice_expired";
+        public const string ExpiredPaidPartial= "invoice_expiredPaidPartial";
+        public const string PaidInFull= "invoice_paidInFull";
+        public const string PaidAfterExpiration= "invoice_paidAfterExpiration";
+        public const string FailedToConfirm= "invoice_failedToConfirm";
+        public const string Confirmed= "invoice_confirmed";
+        public const string Completed= "invoice_completed";
+        
         public InvoiceEvent(Models.InvoiceResponse invoice, int code, string name)
         {
             Invoice = invoice;
@@ -19,6 +31,8 @@ namespace BTCPayServer.Events
         public int EventCode { get; set; }
         public string Name { get; set; }
 
+        public PaymentEntity Payment { get; set; }
+
         public override string ToString()
         {
             return $"Invoice {Invoice.Id} new event: {Name} ({EventCode})";

BTCPayServer/Extensions.cs

@@ -168,6 +168,41 @@ namespace BTCPayServer
                         request.Path.ToUriComponent());
         }
 
+        /// <summary>
+        /// If 'toto' and RootPath is 'rootpath' returns '/rootpath/toto'
+        /// If 'toto' and RootPath is empty returns '/toto'
+        /// </summary>
+        /// <param name="request"></param>
+        /// <param name="path"></param>
+        /// <returns></returns>
+        public static string GetRelativePath(this HttpRequest request, string path)
+        {
+            if (path.Length > 0 && path[0] != '/')
+                path = $"/{path}";
+            return string.Concat(
+                        request.PathBase.ToUriComponent(),
+                        path);
+        }
+
+        /// <summary>
+        /// If 'https://example.com/toto' returns 'https://example.com/toto'
+        /// If 'toto' and RootPath is 'rootpath' returns '/rootpath/toto'
+        /// If 'toto' and RootPath is empty returns '/toto'
+        /// </summary>
+        /// <param name="request"></param>
+        /// <param name="path"></param>
+        /// <returns></returns>
+        public static string GetRelativePathOrAbsolute(this HttpRequest request, string path)
+        {
+            if (Uri.TryCreate(path, UriKind.Absolute, out var unused))
+                return path;
+            if (path.Length > 0 && path[0] != '/')
+                path = $"/{path}";
+            return string.Concat(
+                        request.PathBase.ToUriComponent(),
+                        path);
+        }
+
         public static string GetAbsoluteUri(this HttpRequest request, string redirectUrl)
         {
             bool isRelative =

BTCPayServer/Extensions/EmailSenderExtensions.cs

@@ -10,9 +10,9 @@ namespace BTCPayServer.Services
 {
     public static class EmailSenderExtensions
     {
-        public static Task SendEmailConfirmationAsync(this IEmailSender emailSender, string email, string link)
+        public static void SendEmailConfirmation(this IEmailSender emailSender, string email, string link)
         {
-            return emailSender.SendEmailAsync(email, "Confirm your email",
+            emailSender.SendEmail(email, "Confirm your email",
                 $"Please confirm your account by clicking this link: <a href='{HtmlEncoder.Default.Encode(link)}'>link</a>");
         }
     }

BTCPayServer/HostedServices/BackgroundJobSchedulerHostedService.cs

@@ -0,0 +1,133 @@
+using System;
+using Microsoft.Extensions.Logging;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading;
+using System.Threading.Channels;
+using System.Threading.Tasks;
+using BTCPayServer.Logging;
+using BTCPayServer.Services;
+using Microsoft.Extensions.Hosting;
+using NicolasDorier.RateLimits;
+
+namespace BTCPayServer.HostedServices
+{
+    public class BackgroundJobSchedulerHostedService : IHostedService
+    {
+        public BackgroundJobSchedulerHostedService(IBackgroundJobClient backgroundJobClient)
+        {
+            BackgroundJobClient = (BackgroundJobClient)backgroundJobClient;
+        }
+
+        public BackgroundJobClient BackgroundJobClient { get; }
+
+        Task _Loop;
+
+        public Task StartAsync(CancellationToken cancellationToken)
+        {
+            _Stop = new CancellationTokenSource();
+            _Loop = BackgroundJobClient.ProcessJobs(_Stop.Token);
+            return Task.CompletedTask;
+        }
+
+        CancellationTokenSource _Stop;
+
+        public async Task StopAsync(CancellationToken cancellationToken)
+        {
+            _Stop.Cancel();
+            try
+            {
+                await _Loop;
+            }
+            catch (OperationCanceledException)
+            {
+
+            }
+            await BackgroundJobClient.WaitAllRunning(cancellationToken);
+        }
+    }
+
+    public class BackgroundJobClient : IBackgroundJobClient
+    {
+        class BackgroundJob
+        {
+            public Func<Task> Action;
+            public TimeSpan Delay;
+            public IDelay DelayImplementation;
+            public BackgroundJob(Func<Task> action, TimeSpan delay, IDelay delayImplementation)
+            {
+                this.Action = action;
+                this.Delay = delay;
+                this.DelayImplementation = delayImplementation;
+            }
+
+            public async Task Run(CancellationToken cancellationToken)
+            {
+                await DelayImplementation.Wait(Delay, cancellationToken);
+                await Action();
+            }
+        }
+
+        public IDelay Delay { get; set; } = TaskDelay.Instance;
+        public int GetExecutingCount()
+        {
+            lock (_Processing)
+            {
+                return _Processing.Count();
+            }
+        }
+
+        private Channel<BackgroundJob> _Jobs = Channel.CreateUnbounded<BackgroundJob>();
+        HashSet<Task> _Processing = new HashSet<Task>();
+        public void Schedule(Func<Task> action, TimeSpan delay)
+        {
+            _Jobs.Writer.TryWrite(new BackgroundJob(action, delay, Delay));
+        }
+
+        public async Task WaitAllRunning(CancellationToken cancellationToken)
+        {
+            Task[] processing = null;
+            lock (_Processing)
+            {
+                processing = _Processing.ToArray();
+            }
+
+            try
+            {
+                await Task.WhenAll(processing).WithCancellation(cancellationToken);
+            }
+            catch (Exception) when (cancellationToken.IsCancellationRequested)
+            {
+                throw;
+            }
+        }
+
+        public async Task ProcessJobs(CancellationToken cancellationToken)
+        {
+            while (await _Jobs.Reader.WaitToReadAsync(cancellationToken))
+            {
+                if (_Jobs.Reader.TryRead(out var job))
+                {
+                    var processing = job.Run(cancellationToken);
+                    lock (_Processing)
+                    {
+                        _Processing.Add(processing);
+                    }
+#pragma warning disable CS4014 // Because this call is not awaited, execution of the current method continues before the call is completed
+                    processing.ContinueWith(t =>
+                    {
+                        if (t.IsFaulted)
+                        {
+                            Logs.PayServer.LogWarning(t.Exception, "Unhandled exception while job running");
+                        }
+                        lock (_Processing)
+                        {
+                            _Processing.Remove(processing);
+                        }
+                    }, default, TaskContinuationOptions.ExecuteSynchronously, TaskScheduler.Default);
+#pragma warning restore CS4014 // Because this call is not awaited, execution of the current method continues before the call is completed
+                }
+            }
+        }
+    }
+}

BTCPayServer/HostedServices/InvoiceNotificationManager.cs

@@ -1,10 +1,7 @@
-using Hangfire;
-using Hangfire.Common;
-using System;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Threading.Tasks;
-using Hangfire.Annotations;
 using System.Reflection;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Logging.Abstractions;
@@ -21,6 +18,7 @@ using NBXplorer;
 using BTCPayServer.Services.Invoices;
 using BTCPayServer.Payments;
 using BTCPayServer.Services.Mails;
+using BTCPayServer.Services;
 
 namespace BTCPayServer.HostedServices
 {
@@ -44,16 +42,11 @@ namespace BTCPayServer.HostedServices
             public string Message { get; set; }
         }
 
-        public ILogger Logger
-        {
-            get; set;
-        }
-
         IBackgroundJobClient _JobClient;
         EventAggregator _EventAggregator;
         InvoiceRepository _InvoiceRepository;
         BTCPayNetworkProvider _NetworkProvider;
-        IEmailSender _EmailSender;
+        private readonly EmailSenderFactory _EmailSenderFactory;
 
         public InvoiceNotificationManager(
             IBackgroundJobClient jobClient,
@@ -61,17 +54,16 @@ namespace BTCPayServer.HostedServices
             InvoiceRepository invoiceRepository,
             BTCPayNetworkProvider networkProvider,
             ILogger<InvoiceNotificationManager> logger,
-            IEmailSender emailSender)
+            EmailSenderFactory emailSenderFactory)
         {
-            Logger = logger as ILogger ?? NullLogger.Instance;
             _JobClient = jobClient;
             _EventAggregator = eventAggregator;
             _InvoiceRepository = invoiceRepository;
             _NetworkProvider = networkProvider;
-            _EmailSender = emailSender;
+            _EmailSenderFactory = emailSenderFactory;
         }
 
-        async Task Notify(InvoiceEntity invoice, int? eventCode = null, string name = null)
+        void Notify(InvoiceEntity invoice, int? eventCode = null, string name = null)
         {
             CancellationTokenSource cts = new CancellationTokenSource(10000);
 
@@ -85,58 +77,31 @@ namespace BTCPayServer.HostedServices
                     invoice.StoreId
                 };
                 // TODO: Consider adding info on ItemDesc and payment info (amount)
-
+                
                 var emailBody = NBitcoin.JsonConverters.Serializer.ToString(ipn);
-                await _EmailSender.SendEmailAsync(
-                    invoice.NotificationEmail, $"BtcPayServer Invoice Notification - ${invoice.StoreId}", emailBody);
-            }
 
-            try
-            {
-                if (string.IsNullOrEmpty(invoice.NotificationURL))
-                    return;
-                _EventAggregator.Publish<InvoiceIPNEvent>(new InvoiceIPNEvent(invoice.Id, eventCode, name));
-                var response = await SendNotification(invoice, eventCode, name, cts.Token);
-                response.EnsureSuccessStatusCode();
+                _EmailSenderFactory.GetEmailSender(invoice.StoreId).SendEmail(
+                    invoice.NotificationEmail,
+                    $"BtcPayServer Invoice Notification - ${invoice.StoreId}",
+                    emailBody);
+
+            }
+            if (string.IsNullOrEmpty(invoice.NotificationURL))
                 return;
-            }
-            catch (OperationCanceledException) when (cts.IsCancellationRequested)
-            {
-                _EventAggregator.Publish<InvoiceIPNEvent>(new InvoiceIPNEvent(invoice.Id, eventCode, name)
-                {
-                    Error = "Timeout"
-                });
-            }
-            catch (Exception ex) // It fails, it is OK because we try with hangfire after
-            {
-                _EventAggregator.Publish<InvoiceIPNEvent>(new InvoiceIPNEvent(invoice.Id, eventCode, name)
-                {
-                    Error = ex.Message
-                });
-            }
             var invoiceStr = NBitcoin.JsonConverters.Serializer.ToString(new ScheduledJob() { TryCount = 0, Invoice = invoice, EventCode = eventCode, Message = name });
             if (!string.IsNullOrEmpty(invoice.NotificationURL))
                 _JobClient.Schedule(() => NotifyHttp(invoiceStr), TimeSpan.Zero);
         }
 
-        ConcurrentDictionary<string, string> _Executing = new ConcurrentDictionary<string, string>();
         public async Task NotifyHttp(string invoiceData)
         {
             var job = NBitcoin.JsonConverters.Serializer.ToObject<ScheduledJob>(invoiceData);
-            var jobId = GetHttpJobId(job.Invoice);
-
-            if (!_Executing.TryAdd(jobId, jobId))
-                return; //For some reason, Hangfire fire the job several time
-
-            Logger.LogInformation("Running " + jobId);
             bool reschedule = false;
             CancellationTokenSource cts = new CancellationTokenSource(10000);
             try
             {
                 HttpResponseMessage response = await SendNotification(job.Invoice, job.EventCode, job.Message, cts.Token);
                 reschedule = !response.IsSuccessStatusCode;
-                Logger.LogInformation("Job " + jobId + " returned " + response.StatusCode);
-
                 _EventAggregator.Publish<InvoiceIPNEvent>(new InvoiceIPNEvent(job.Invoice.Id, job.EventCode, job.Message)
                 {
                     Error = reschedule ? $"Unexpected return code: {(int)response.StatusCode}" : null
@@ -149,9 +114,8 @@ namespace BTCPayServer.HostedServices
                     Error = "Timeout"
                 });
                 reschedule = true;
-                Logger.LogInformation("Job " + jobId + " timed out");
             }
-            catch (Exception ex) // It fails, it is OK because we try with hangfire after
+            catch (Exception ex)
             {
                 _EventAggregator.Publish<InvoiceIPNEvent>(new InvoiceIPNEvent(job.Invoice.Id, job.EventCode, job.Message)
                 {
@@ -166,21 +130,18 @@ namespace BTCPayServer.HostedServices
                     ex = ex.InnerException;
                 }
                 string message = String.Join(',', messages.ToArray());
-                Logger.LogInformation("Job " + jobId + " threw exception " + message);
 
                 _EventAggregator.Publish<InvoiceIPNEvent>(new InvoiceIPNEvent(job.Invoice.Id, job.EventCode, job.Message)
                 {
                     Error = $"Unexpected error: {message}"
                 });
             }
-            finally { cts.Dispose(); _Executing.TryRemove(jobId, out jobId); }
+            finally { cts?.Dispose(); }
 
             job.TryCount++;
 
             if (job.TryCount < MaxTry && reschedule)
             {
-                Logger.LogInformation("Rescheduling " + jobId + " in 10 minutes, remaining try " + (MaxTry - job.TryCount));
-
                 invoiceData = NBitcoin.JsonConverters.Serializer.ToString(job);
                 _JobClient.Schedule(() => NotifyHttp(invoiceData), TimeSpan.FromMinutes(10.0));
             }
@@ -320,17 +281,12 @@ namespace BTCPayServer.HostedServices
 
         int MaxTry = 6;
 
-        private static string GetHttpJobId(InvoiceEntity invoice)
-        {
-            return $"{invoice.Id}-{invoice.Status}-HTTP";
-        }
-
         CompositeDisposable leases = new CompositeDisposable();
         public Task StartAsync(CancellationToken cancellationToken)
         {
             leases.Add(_EventAggregator.Subscribe<InvoiceEvent>(async e =>
             {
-                var invoice = await _InvoiceRepository.GetInvoice(null, e.Invoice.Id);
+                var invoice = await _InvoiceRepository.GetInvoice(e.Invoice.Id);
                 if (invoice == null)
                     return;
                 List<Task> tasks = new List<Task>();
@@ -341,27 +297,27 @@ namespace BTCPayServer.HostedServices
                 // we need to use the status in the event and not in the invoice. The invoice might now be in another status.
                 if (invoice.FullNotifications)
                 {
-                    if (e.Name == "invoice_expired" ||
-                       e.Name == "invoice_paidInFull" ||
-                       e.Name == "invoice_failedToConfirm" ||
-                       e.Name == "invoice_markedInvalid" ||
-                       e.Name == "invoice_failedToConfirm" ||
-                       e.Name == "invoice_completed" ||
-                       e.Name == "invoice_expiredPaidPartial"
+                    if (e.Name == InvoiceEvent.Expired ||
+                       e.Name == InvoiceEvent.PaidInFull ||
+                       e.Name == InvoiceEvent.FailedToConfirm ||
+                       e.Name == InvoiceEvent.MarkedInvalid ||
+                       e.Name == InvoiceEvent.MarkedCompleted ||
+                       e.Name == InvoiceEvent.FailedToConfirm ||
+                       e.Name == InvoiceEvent.Completed ||
+                       e.Name == InvoiceEvent.ExpiredPaidPartial
                      )
-                        tasks.Add(Notify(invoice));
+                        Notify(invoice);
                 }
 
                 if (e.Name == "invoice_confirmed")
                 {
-                    tasks.Add(Notify(invoice));
+                    Notify(invoice);
                 }
 
                 if (invoice.ExtendedNotifications)
                 {
-                    tasks.Add(Notify(invoice, e.EventCode, e.Name));
+                    Notify(invoice, e.EventCode, e.Name);
                 }
-                await Task.WhenAll(tasks.ToArray());
             }));
 
 

BTCPayServer/HostedServices/InvoiceWatcher.cs

@@ -11,7 +11,6 @@ using BTCPayServer.Logging;
 using System.Threading;
 using Microsoft.Extensions.Hosting;
 using System.Collections.Concurrent;
-using Hangfire;
 using BTCPayServer.Services.Wallets;
 using BTCPayServer.Controllers;
 using BTCPayServer.Events;
@@ -61,15 +60,15 @@ namespace BTCPayServer.HostedServices
         private async Task UpdateInvoice(UpdateInvoiceContext context)
         {
             var invoice = context.Invoice;
-            if (invoice.Status == "new" && invoice.ExpirationTime < DateTimeOffset.UtcNow)
+            if (invoice.Status == InvoiceStatus.New && invoice.ExpirationTime < DateTimeOffset.UtcNow)
             {
                 context.MarkDirty();
                 await _InvoiceRepository.UnaffectAddress(invoice.Id);
 
-                context.Events.Add(new InvoiceEvent(invoice.EntityToDTO(_NetworkProvider), 1004, "invoice_expired"));
-                invoice.Status = "expired";
-                if(invoice.ExceptionStatus == "paidPartial")
-                    context.Events.Add(new InvoiceEvent(invoice.EntityToDTO(_NetworkProvider), 2000, "invoice_expiredPaidPartial"));
+                context.Events.Add(new InvoiceEvent(invoice.EntityToDTO(_NetworkProvider), 1004, InvoiceEvent.Expired));
+                invoice.Status = InvoiceStatus.Expired;
+                if(invoice.ExceptionStatus == InvoiceExceptionStatus.PaidPartial)
+                    context.Events.Add(new InvoiceEvent(invoice.EntityToDTO(_NetworkProvider), 2000, InvoiceEvent.ExpiredPaidPartial));
             }
 
             var payments = invoice.GetPayments().Where(p => p.Accounted).ToArray();
@@ -78,57 +77,57 @@ namespace BTCPayServer.HostedServices
             if (paymentMethod == null)
                 return;
             var network = _NetworkProvider.GetNetwork(paymentMethod.GetId().CryptoCode);
-            if (invoice.Status == "new" || invoice.Status == "expired")
+            if (invoice.Status == InvoiceStatus.New || invoice.Status == InvoiceStatus.Expired)
             {
                 if (accounting.Paid >= accounting.MinimumTotalDue)
                 {
-                    if (invoice.Status == "new")
+                    if (invoice.Status == InvoiceStatus.New)
                     {
-                        context.Events.Add(new InvoiceEvent(invoice.EntityToDTO(_NetworkProvider), 1003, "invoice_paidInFull"));
-                        invoice.Status = "paid";
-                        invoice.ExceptionStatus = accounting.Paid > accounting.TotalDue ? "paidOver" : null;
+                        context.Events.Add(new InvoiceEvent(invoice.EntityToDTO(_NetworkProvider), 1003, InvoiceEvent.PaidInFull));
+                        invoice.Status = InvoiceStatus.Paid;
+                        invoice.ExceptionStatus = accounting.Paid > accounting.TotalDue ? InvoiceExceptionStatus.PaidOver : InvoiceExceptionStatus.None;
                         await _InvoiceRepository.UnaffectAddress(invoice.Id);
                         context.MarkDirty();
                     }
-                    else if (invoice.Status == "expired" && invoice.ExceptionStatus != "paidLate")
+                    else if (invoice.Status == InvoiceStatus.Expired && invoice.ExceptionStatus != InvoiceExceptionStatus.PaidLate)
                     {
-                        invoice.ExceptionStatus = "paidLate";
-                        context.Events.Add(new InvoiceEvent(invoice.EntityToDTO(_NetworkProvider), 1009, "invoice_paidAfterExpiration"));
+                        invoice.ExceptionStatus = InvoiceExceptionStatus.PaidLate;
+                        context.Events.Add(new InvoiceEvent(invoice.EntityToDTO(_NetworkProvider), 1009, InvoiceEvent.PaidAfterExpiration));
                         context.MarkDirty();
                     }
                 }
 
-                if (accounting.Paid < accounting.MinimumTotalDue && invoice.GetPayments().Count != 0 && invoice.ExceptionStatus != "paidPartial")
+                if (accounting.Paid < accounting.MinimumTotalDue && invoice.GetPayments().Count != 0 && invoice.ExceptionStatus != InvoiceExceptionStatus.PaidPartial)
                 {
-                        invoice.ExceptionStatus = "paidPartial";
+                        invoice.ExceptionStatus = InvoiceExceptionStatus.PaidPartial;
                         context.MarkDirty();
                 }
             }
 
             // Just make sure RBF did not cancelled a payment
-            if (invoice.Status == "paid")
+            if (invoice.Status == InvoiceStatus.Paid)
             {
-                if (accounting.MinimumTotalDue <= accounting.Paid && accounting.Paid <= accounting.TotalDue && invoice.ExceptionStatus == "paidOver")
+                if (accounting.MinimumTotalDue <= accounting.Paid && accounting.Paid <= accounting.TotalDue && invoice.ExceptionStatus == InvoiceExceptionStatus.PaidOver)
                 {
-                    invoice.ExceptionStatus = null;
+                    invoice.ExceptionStatus = InvoiceExceptionStatus.None;
                     context.MarkDirty();
                 }
 
-                if (accounting.Paid > accounting.TotalDue && invoice.ExceptionStatus != "paidOver")
+                if (accounting.Paid > accounting.TotalDue && invoice.ExceptionStatus != InvoiceExceptionStatus.PaidOver)
                 {
-                    invoice.ExceptionStatus = "paidOver";
+                    invoice.ExceptionStatus = InvoiceExceptionStatus.PaidOver;
                     context.MarkDirty();
                 }
 
                 if (accounting.Paid < accounting.MinimumTotalDue)
                 {
-                    invoice.Status = "new";
-                    invoice.ExceptionStatus = accounting.Paid == Money.Zero ? null : "paidPartial";
+                    invoice.Status = InvoiceStatus.New;
+                    invoice.ExceptionStatus = accounting.Paid == Money.Zero ? InvoiceExceptionStatus.None : InvoiceExceptionStatus.PaidPartial;
                     context.MarkDirty();
                 }
             }
 
-            if (invoice.Status == "paid")
+            if (invoice.Status == InvoiceStatus.Paid)
             {
                 var confirmedAccounting = paymentMethod.Calculate(p => p.GetCryptoPaymentData().PaymentConfirmed(p, invoice.SpeedPolicy, network));
 
@@ -139,26 +138,26 @@ namespace BTCPayServer.HostedServices
                    (confirmedAccounting.Paid < accounting.MinimumTotalDue))
                 {
                     await _InvoiceRepository.UnaffectAddress(invoice.Id);
-                    context.Events.Add(new InvoiceEvent(invoice.EntityToDTO(_NetworkProvider), 1013, "invoice_failedToConfirm"));
-                    invoice.Status = "invalid";
+                    context.Events.Add(new InvoiceEvent(invoice.EntityToDTO(_NetworkProvider), 1013, InvoiceEvent.FailedToConfirm));
+                    invoice.Status = InvoiceStatus.Invalid;
                     context.MarkDirty();
                 }
                 else if (confirmedAccounting.Paid >= accounting.MinimumTotalDue)
                 {
                     await _InvoiceRepository.UnaffectAddress(invoice.Id);
-                    context.Events.Add(new InvoiceEvent(invoice.EntityToDTO(_NetworkProvider), 1005, "invoice_confirmed"));
-                    invoice.Status = "confirmed";
+                    context.Events.Add(new InvoiceEvent(invoice.EntityToDTO(_NetworkProvider), 1005, InvoiceEvent.Confirmed));
+                    invoice.Status = InvoiceStatus.Confirmed;
                     context.MarkDirty();
                 }
             }
 
-            if (invoice.Status == "confirmed")
+            if (invoice.Status == InvoiceStatus.Confirmed)
             {
                 var completedAccounting = paymentMethod.Calculate(p => p.GetCryptoPaymentData().PaymentCompleted(p, network));
                 if (completedAccounting.Paid >= accounting.MinimumTotalDue)
                 {
-                    context.Events.Add(new InvoiceEvent(invoice.EntityToDTO(_NetworkProvider), 1006, "invoice_completed"));
-                    invoice.Status = "complete";
+                    context.Events.Add(new InvoiceEvent(invoice.EntityToDTO(_NetworkProvider), 1006, InvoiceEvent.Completed));
+                    invoice.Status = InvoiceStatus.Complete;
                     context.MarkDirty();
                 }
             }
@@ -208,7 +207,7 @@ namespace BTCPayServer.HostedServices
 
         private async Task Wait(string invoiceId)
         {
-            var invoice = await _InvoiceRepository.GetInvoice(null, invoiceId);
+            var invoice = await _InvoiceRepository.GetInvoice(invoiceId);
             try
             {
                 var delay = invoice.ExpirationTime - DateTimeOffset.UtcNow;
@@ -247,13 +246,13 @@ namespace BTCPayServer.HostedServices
             }));
             leases.Add(_EventAggregator.Subscribe<Events.InvoiceEvent>(async b =>
             {
-                if (b.Name == "invoice_created")
+                if (b.Name == InvoiceEvent.Created)
                 {
                     Watch(b.Invoice.Id);
                     await Wait(b.Invoice.Id);
                 }
 
-                if (b.Name == "invoice_receivedPayment")
+                if (b.Name == InvoiceEvent.ReceivedPayment)
                 {
                     Watch(b.Invoice.Id);
                 }
@@ -283,14 +282,14 @@ namespace BTCPayServer.HostedServices
                         loopCount++;
                         try
                         {
-                            var invoice = await _InvoiceRepository.GetInvoice(null, invoiceId, true);
+                            var invoice = await _InvoiceRepository.GetInvoice(invoiceId, true);
                             if (invoice == null)
                                 break;
                             var updateContext = new UpdateInvoiceContext(invoice);
                             await UpdateInvoice(updateContext);
                             if (updateContext.Dirty)
                             {
-                                await _InvoiceRepository.UpdateInvoiceStatus(invoice.Id, invoice.Status, invoice.ExceptionStatus);
+                                await _InvoiceRepository.UpdateInvoiceStatus(invoice.Id, invoice.GetInvoiceState());
                                 updateContext.Events.Insert(0, new InvoiceDataChangedEvent(invoice));
                             }
 
@@ -299,8 +298,8 @@ namespace BTCPayServer.HostedServices
                                 _EventAggregator.Publish(evt, evt.GetType());
                             }
 
-                            if (invoice.Status == "complete" ||
-                               ((invoice.Status == "invalid" || invoice.Status == "expired") && invoice.MonitoringExpiration < DateTimeOffset.UtcNow))
+                            if (invoice.Status == InvoiceStatus.Complete ||
+                               ((invoice.Status == InvoiceStatus.Invalid || invoice.Status == InvoiceStatus.Expired) && invoice.MonitoringExpiration < DateTimeOffset.UtcNow))
                             {
                                 if (await _InvoiceRepository.RemovePendingInvoice(invoice.Id))
                                     _EventAggregator.Publish(new InvoiceStopWatchedEvent(invoice.Id));

BTCPayServer/HostedServices/MigratorHostedService.cs

@@ -59,6 +59,12 @@ namespace BTCPayServer.HostedServices
                     settings.ConvertMultiplierToSpread = true;
                     await _Settings.UpdateSetting(settings);
                 }
+                if (!settings.ConvertNetworkFeeProperty)
+                {
+                    await ConvertNetworkFeeProperty();
+                    settings.ConvertNetworkFeeProperty = true;
+                    await _Settings.UpdateSetting(settings);
+                }
             }
             catch (Exception ex)
             {
@@ -67,6 +73,26 @@ namespace BTCPayServer.HostedServices
             }
         }
 
+        private async Task ConvertNetworkFeeProperty()
+        {
+            using (var ctx = _DBContextFactory.CreateContext())
+            {
+                foreach (var store in await ctx.Stores.ToArrayAsync())
+                {
+                    var blob = store.GetStoreBlob();
+#pragma warning disable CS0618 // Type or member is obsolete
+                    if (blob.NetworkFeeDisabled != null)
+                    {
+                        blob.NetworkFeeMode = blob.NetworkFeeDisabled.Value ? NetworkFeeMode.Never : NetworkFeeMode.Always;
+                        blob.NetworkFeeDisabled = null;
+                        store.SetStoreBlob(blob);
+                    }
+#pragma warning restore CS0618 // Type or member is obsolete
+                }
+                await ctx.SaveChangesAsync();
+            }
+        }
+
         private async Task ConvertMultiplierToSpread()
         {
             using (var ctx = _DBContextFactory.CreateContext())

BTCPayServer/Hosting/BTCPayServerServices.cs

@@ -38,7 +38,10 @@ using BTCPayServer.Logging;
 using BTCPayServer.HostedServices;
 using Meziantou.AspNetCore.BundleTagHelpers;
 using System.Security.Claims;
+using BTCPayServer.Crowdfund;
+using BTCPayServer.Hubs;
 using BTCPayServer.Payments.Changelly;
+using BTCPayServer.Payments.Lightning;
 using BTCPayServer.Security;
 using Microsoft.AspNetCore.Mvc.ModelBinding;
 using NBXplorer.DerivationStrategy;
@@ -73,6 +76,7 @@ namespace BTCPayServer.Hosting
             services.TryAddSingleton<TokenRepository>();
             services.TryAddSingleton<EventAggregator>();
             services.TryAddSingleton<CoinAverageSettings>();
+            services.TryAddSingleton<CrowdfundHubStreamer>();
             services.TryAddSingleton<ApplicationDbContextFactory>(o => 
             {
                 var opts = o.GetRequiredService<BTCPayServerOptions>();
@@ -113,7 +117,7 @@ namespace BTCPayServer.Hosting
             services.TryAddSingleton<CurrencyNameTable>();
             services.TryAddSingleton<IFeeProviderFactory>(o => new NBXplorerFeeProviderFactory(o.GetRequiredService<ExplorerClientProvider>())
             {
-                Fallback = new FeeRate(100, 1),
+                Fallback = new FeeRate(100L, 1),
                 BlockTarget = 20
             });
 
@@ -132,6 +136,7 @@ namespace BTCPayServer.Hosting
             services.AddSingleton<IHostedService, HostedServices.CheckConfigurationHostedService>();
 
             services.AddSingleton<Payments.IPaymentMethodHandler<Payments.Lightning.LightningSupportedPaymentMethod>, Payments.Lightning.LightningLikePaymentHandler>();
+            services.AddSingleton<LightningLikePaymentHandler>();
             services.AddSingleton<IHostedService, Payments.Lightning.LightningListener>();
             
             services.AddSingleton<ChangellyClientProvider>();
@@ -140,6 +145,8 @@ namespace BTCPayServer.Hosting
             services.AddSingleton<IHostedService, InvoiceNotificationManager>();
             services.AddSingleton<IHostedService, InvoiceWatcher>();
             services.AddSingleton<IHostedService, RatesHostedService>();
+            services.AddSingleton<IHostedService, BackgroundJobSchedulerHostedService>();
+            services.AddSingleton<IBackgroundJobClient, BackgroundJobClient>();
             services.AddTransient<IConfigureOptions<MvcOptions>, BTCPayClaimsFilter>();
 
             services.TryAddSingleton<ExplorerClientProvider>();
@@ -156,8 +163,9 @@ namespace BTCPayServer.Hosting
             services.TryAddScoped<IHttpContextAccessor, HttpContextAccessor>();
             services.AddTransient<AccessTokenController>();
             services.AddTransient<InvoiceController>();
+            services.AddTransient<AppsPublicController>();
             // Add application services.
-            services.AddTransient<IEmailSender, EmailSender>();
+            services.AddSingleton<EmailSenderFactory>();
             // bundling
 
             services.AddAuthorization(o => Policies.AddBTCPayPolicies(o));

BTCPayServer/Hosting/Startup.cs

@@ -19,7 +19,6 @@ using BTCPayServer.Models;
 using Microsoft.AspNetCore.Identity;
 using BTCPayServer.Data;
 using Microsoft.Extensions.Logging;
-using Hangfire;
 using BTCPayServer.Logging;
 using Microsoft.AspNetCore.Authorization;
 using System.Threading.Tasks;
@@ -27,17 +26,15 @@ using BTCPayServer.Controllers;
 using BTCPayServer.Services.Stores;
 using BTCPayServer.Services.Mails;
 using Microsoft.Extensions.Configuration;
-using Hangfire.AspNetCore;
 using BTCPayServer.Configuration;
 using System.IO;
-using Hangfire.Dashboard;
-using Hangfire.Annotations;
 using Microsoft.Extensions.DependencyInjection.Extensions;
 using System.Threading;
 using Microsoft.Extensions.Options;
 using Microsoft.AspNetCore.Mvc.Cors.Internal;
 using Microsoft.AspNetCore.Server.Kestrel.Core;
 using System.Net;
+using BTCPayServer.Hubs;
 using Meziantou.AspNetCore.BundleTagHelpers;
 using BTCPayServer.Security;
 
@@ -45,18 +42,6 @@ namespace BTCPayServer.Hosting
 {
     public class Startup
     {
-        class NeedRole : IDashboardAuthorizationFilter
-        {
-            string _Role;
-            public NeedRole(string role)
-            {
-                _Role = role;
-            }
-            public bool Authorize([NotNull] DashboardContext context)
-            {
-                return context.GetHttpContext().User.IsInRole(_Role);
-            }
-        }
         public Startup(IConfiguration conf, IHostingEnvironment env, ILoggerFactory loggerFactory)
         {
             Configuration = conf;
@@ -78,7 +63,7 @@ namespace BTCPayServer.Hosting
             services.AddIdentity<ApplicationUser, IdentityRole>()
                 .AddEntityFrameworkStores<ApplicationDbContext>()
                 .AddDefaultTokenProviders();
-
+            services.AddSignalR();
             services.AddBTCPayServer();
             services.AddMvc(o =>
             {
@@ -99,7 +84,7 @@ namespace BTCPayServer.Hosting
             services.Configure<IdentityOptions>(options =>
             {
                 options.Password.RequireDigit = false;
-                options.Password.RequiredLength = 7;
+                options.Password.RequiredLength = 6;
                 options.Password.RequireLowercase = false;
                 options.Password.RequireNonAlphanumeric = false;
                 options.Password.RequireUppercase = false;
@@ -107,13 +92,6 @@ namespace BTCPayServer.Hosting
                 options.Lockout.MaxFailedAccessAttempts = 5;
                 options.Lockout.AllowedForNewUsers = true;
             });
-
-            services.AddHangfire((o) =>
-            {
-                var scope = AspNetCoreJobActivator.Current.BeginScope(null);
-                var options = (ApplicationDbContextFactory)scope.Resolve(typeof(ApplicationDbContextFactory));
-                options.ConfigureHangfireBuilder(o);
-            });
             services.AddCors(o =>
             {
                 o.AddPolicy("BitpayAPI", b =>
@@ -192,11 +170,9 @@ namespace BTCPayServer.Hosting
             app.UsePayServer();
             app.UseStaticFiles();
             app.UseAuthentication();
-            app.UseHangfireServer();
-            app.UseHangfireDashboard("/hangfire", new DashboardOptions()
+            app.UseSignalR(route =>
             {
-                AppPath = options.GetRootUri(),
-                Authorization = new[] { new NeedRole(Roles.ServerAdmin) }
+                route.MapHub<CrowdfundHub>("/apps/crowdfund/hub");
             });
             app.UseWebSockets();
             app.UseStatusCodePages();

BTCPayServer/IDelay.cs

@@ -0,0 +1,33 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace BTCPayServer
+{
+    public interface IDelay
+    {
+        Task Wait(TimeSpan delay, CancellationToken cancellationToken);
+    }
+
+    public class TaskDelay : IDelay
+    {
+        TaskDelay()
+        {
+
+        }
+        private static readonly TaskDelay _Instance = new TaskDelay();
+        public static TaskDelay Instance
+        {
+            get
+            {
+                return _Instance;
+            }
+        }
+        public Task Wait(TimeSpan delay, CancellationToken cancellationToken)
+        {
+            return Task.Delay(delay, cancellationToken);
+        }
+    }
+}

BTCPayServer/Models/AppViewModels/UpdateCrowdfundViewModel.cs

@@ -0,0 +1,91 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+
+namespace BTCPayServer.Models.AppViewModels
+{
+    public class UpdateCrowdfundViewModel
+    {
+        [Required] [MaxLength(30)] public string Title { get; set; }
+
+        [MaxLength(50)] public string Tagline { get; set; }
+
+        [Required] public string Description { get; set; }
+        
+        [Display(Name = "Featured Image")]
+        public string MainImageUrl { get; set; }
+
+        public string NotificationUrl { get; set; }
+
+        [Required]
+        [Display(Name = "Allow crowdfund to be publicly visible (still visible to you)")]
+        public bool Enabled { get; set; } = false;
+
+        [Required]
+        [Display(Name = "Enable background animations on new payments")]
+        public bool AnimationsEnabled { get; set; } = true;
+
+        [Required]
+        [Display(Name = "Enable sounds on new payments")]
+        public bool SoundsEnabled { get; set; } = true;
+
+        [Required]
+        [Display(Name = "Enable Disqus Comments")]
+        public bool DisqusEnabled { get; set; } = true;
+
+        [Display(Name = "Disqus Shortname")] public string DisqusShortname { get; set; }
+
+        public DateTime? StartDate { get; set; }
+        public DateTime? EndDate { get; set; }
+
+        [Required]
+        [MaxLength(5)]
+        [Display(Name = "The primary currency used for targets and stats. (e.g. BTC, LTC, USD, etc.)")]
+        public string TargetCurrency { get; set; } = "BTC";
+
+        [Display(Name = "Set a Target amount ")]
+        public decimal? TargetAmount { get; set; }
+
+
+        public IEnumerable<string> ResetEveryValues = Enum.GetNames(typeof(CrowdfundResetEvery));
+
+        [Display(Name = "Reset goal every")] public string ResetEvery { get; set; } = nameof(CrowdfundResetEvery.Never);
+
+        public int ResetEveryAmount { get; set; } = 1;
+
+
+        [Display(Name = "Do not allow additional contributions after target has been reached")]
+        public bool EnforceTargetAmount { get; set; }
+
+        [Display(Name = "Contribution Perks Template")]
+        public string PerksTemplate { get; set; }
+
+        [MaxLength(500)]
+        [Display(Name = "Custom bootstrap CSS file")]
+        public string CustomCSSLink { get; set; }
+
+        [Display(Name = "Custom CSS Code")]
+        public string EmbeddedCSS { get; set; }
+
+        [Display(Name = "Base the contributed goal amount on the invoice amount and not actual payments")]
+        public bool UseInvoiceAmount { get; set; }       
+        [Display(Name = "Count all invoices created on the store as part of the crowdfunding goal")]
+        public bool UseAllStoreInvoices { get; set; } 
+
+        public string AppId { get; set; }
+        [Display(Name = "Sort contribution perks by popularity")]
+        public bool SortPerksByPopularity { get; set; }
+        [Display(Name = "Display contribution ranking")]
+        public bool DisplayPerksRanking { get; set; }
+    }
+
+    public enum CrowdfundResetEvery
+    {
+        Never,
+        Hour,
+        Day,
+        Month,
+        Year
+    }
+}

BTCPayServer/Models/AppViewModels/UpdatePointOfSaleViewModel.cs

@@ -1,8 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.ComponentModel.DataAnnotations;
-using System.Linq;
-using System.Threading.Tasks;
+using System.ComponentModel.DataAnnotations;
 
 namespace BTCPayServer.Models.AppViewModels
 {
@@ -14,15 +10,36 @@ namespace BTCPayServer.Models.AppViewModels
         [Required]
         [MaxLength(5)]
         public string Currency { get; set; }
-        [Required]
         [MaxLength(5000)]
         public string Template { get; set; }
 
+        [Display(Name = "Enable shopping cart")]
+        public bool EnableShoppingCart { get; set; }
         [Display(Name = "User can input custom amount")]
         public bool ShowCustomAmount { get; set; }
         public string Example1 { get; internal set; }
         public string Example2 { get; internal set; }
         public string ExampleCallback { get; internal set; }
         public string InvoiceUrl { get; internal set; }
+
+        [Required]
+        [MaxLength(30)]
+        [Display(Name = "Text to display on each buttons for items with a specific price")]
+        public string ButtonText { get; set; }
+        [Required]
+        [MaxLength(30)]
+        [Display(Name = "Text to display on buttons next to the input allowing the user to enter a custom amount")]
+        public string CustomButtonText { get; set; }
+        [Required]
+        [MaxLength(30)]
+        [Display(Name = "Text to display in the tip input")]
+        public string CustomTipText { get; set; }
+        [MaxLength(30)]
+        [Display(Name = "Tip percentage amounts (comma separated)")]
+        public string CustomTipPercentages { get; set; }
+
+        [MaxLength(500)]
+        [Display(Name = "Custom bootstrap CSS file")]
+        public string CustomCSSLink { get; set; }
     }
 }

BTCPayServer/Models/AppViewModels/ViewCrowdfundViewModel.cs

@@ -0,0 +1,69 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Threading.Tasks;
+using BTCPayServer.Services.Rates;
+
+namespace BTCPayServer.Models.AppViewModels
+{
+    public class ViewCrowdfundViewModel
+    {
+        public string StatusMessage{ get; set; }
+        public string StoreId { get; set; }
+        public string AppId { get; set; }
+        public string Title { get; set; }
+        public string Description { get; set; }
+        public string MainImageUrl { get; set; }
+        public string EmbeddedCSS { get; set; }
+        public string CustomCSSLink { get; set; }
+        public DateTime? StartDate { get; set; }
+        public DateTime? EndDate { get; set; }
+
+        public string TargetCurrency { get; set; }
+        public decimal? TargetAmount { get; set; }
+        public bool EnforceTargetAmount { get; set; }
+
+        public CrowdfundInfo Info { get; set; }
+        public string Tagline { get; set; }
+        public ViewPointOfSaleViewModel.Item[] Perks { get; set; }
+        public bool DisqusEnabled { get; set; }
+        public bool SoundsEnabled { get; set; }
+        public string DisqusShortname { get; set; }
+        public bool AnimationsEnabled { get; set; }
+        public int ResetEveryAmount { get; set; }
+        public string ResetEvery { get; set; }
+
+        public Dictionary<string, int> PerkCount { get; set; }
+
+        public CurrencyData CurrencyData { get; set; }
+        
+        public class CrowdfundInfo
+        {
+            public int TotalContributors { get; set; }
+            public decimal CurrentPendingAmount { get; set; }
+            public decimal CurrentAmount { get; set; }
+            public decimal? ProgressPercentage { get; set; }
+            public decimal? PendingProgressPercentage { get; set; }
+            public DateTime LastUpdated { get; set; }
+            public Dictionary<string, decimal> PaymentStats { get; set; }
+            public Dictionary<string, decimal> PendingPaymentStats { get; set; }
+            public DateTime? LastResetDate { get; set; }
+            public DateTime? NextResetDate { get; set; }
+        }
+
+        public bool Started => !StartDate.HasValue || DateTime.Now.ToUniversalTime() > StartDate;
+
+        public bool Ended => !EndDate.HasValue || DateTime.Now.ToUniversalTime() > EndDate;
+        public bool DisplayPerksRanking { get; set; }
+    }
+
+    public class ContributeToCrowdfund
+    {
+        public ViewCrowdfundViewModel ViewCrowdfundViewModel { get; set; }
+        [Required] public decimal Amount { get; set; }
+        public string Email { get; set; }
+        public string ChoiceKey { get; set; }
+        public bool RedirectToCheckout { get; set; }
+        public string RedirectUrl { get; set; }
+    }
+}

BTCPayServer/Models/AppViewModels/ViewPointOfSaleViewModel.cs

@@ -14,13 +14,39 @@ namespace BTCPayServer.Models.AppViewModels
                 public string Formatted { get; set; }
                 public decimal Value { get; set; }
             }
+            public string Description { get; set; }
             public string Id { get; set; }
+            public string Image { get; set; }
             public ItemPrice Price { get; set; }
             public string Title { get; set; }
+            public bool Custom { get; set; }
         }
+
+        public class CurrencyInfoData
+        {
+            public bool Prefixed { get; set; }
+            public string CurrencySymbol { get; set; }
+            public string ThousandSeparator { get; set; }
+            public string DecimalSeparator { get; set; }
+            public int Divisibility { get; set; }
+            public bool SymbolSpace { get; set; }
+        }
+
+        public CurrencyInfoData CurrencyInfo { get; set; }
+
+        public bool EnableShoppingCart { get; set; }
         public bool ShowCustomAmount { get; set; }
         public string Step { get; set; }
         public string Title { get; set; }
         public Item[] Items { get; set; }
+        public string CurrencyCode { get; set; }
+        public string CurrencySymbol { get; set; }
+        public string AppId { get; set; }
+        public string ButtonText { get; set; }
+        public string CustomButtonText { get; set; }
+        public string CustomTipText { get; set; }
+        public int[] CustomTipPercentages { get; set; }
+
+        public string CustomCSSLink { get; set; }
     }
 }

BTCPayServer/Models/BitpayTranslatorViewModel.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
+{
+    public class BitpayTranslatorViewModel
+    {
+        [Display(Name = "Bitpay's invoice URL or obsolete invoice url")]
+        public string BitpayLink { get; set; }
+        public string Address { get; set; }
+        public string Amount { get; set; }
+        public string BitcoinUri { get; set; }
+    }
+}

BTCPayServer/Models/InvoiceResponse.cs

@@ -40,6 +40,12 @@ namespace BTCPayServer.Models
     //{"facade":"pos/invoice","data":{,}}
     public class InvoiceResponse
     {
+        [JsonIgnore]
+        public string StoreId
+        {
+            get; set;
+        }
+        
         //"url":"https://test.bitpay.com/invoice?id=9saCHtp1zyPcNoi3rDdBu8"
         [JsonProperty("url")]
         public string Url
@@ -84,6 +90,12 @@ namespace BTCPayServer.Models
             get; set;
         }
 
+        [JsonProperty("taxIncluded", DefaultValueHandling = DefaultValueHandling.Ignore)]
+        public decimal TaxIncluded
+        {
+            get; set;
+        }
+
         //"currency":"USD"
         [JsonProperty("currency")]
         public string Currency
@@ -247,6 +259,8 @@ namespace BTCPayServer.Models
         public Dictionary<string, string> Addresses { get; set; }
         [JsonProperty("paymentCodes")]
         public Dictionary<string, NBitpayClient.InvoicePaymentUrls> PaymentCodes { get; set; }
+        [JsonProperty("buyer")]
+        public JObject Buyer { get; set; }
     }
     public class Flags
     {

BTCPayServer/Models/InvoicingModels/InvoiceDetailsModel.cs

@@ -81,11 +81,11 @@ namespace BTCPayServer.Models.InvoicingModels
             public string BOLT11 { get; set; }
         }
 
-        public string Status
+        public string State
         {
             get; set;
         }
-        public string StatusException { get; set; }
+        public InvoiceExceptionStatus StatusException { get; set; }
         public DateTimeOffset CreatedDate
         {
             get; set;
@@ -143,5 +143,6 @@ namespace BTCPayServer.Models.InvoicingModels
         public DateTimeOffset MonitoringDate { get; internal set; }
         public List<Data.InvoiceEventData> Events { get; internal set; }
         public string NotificationEmail { get; internal set; }
+        public Dictionary<string, object> PosData { get; set; }
     }
 }

BTCPayServer/Models/InvoicingModels/InvoicesModel.cs

@@ -15,6 +15,10 @@ namespace BTCPayServer.Models.InvoicingModels
         {
             get; set;
         }
+        public int Total
+        {
+            get; set;
+        }
         public string SearchTerm
         {
             get; set;
@@ -46,6 +50,9 @@ namespace BTCPayServer.Models.InvoicingModels
         {
             get; set;
         }
+        public bool CanMarkComplete { get; set; }
+        public bool CanMarkInvalid { get; set; }
+        public bool CanMarkStatus => CanMarkComplete || CanMarkInvalid;
         public bool ShowCheckout { get; set; }
         public string ExceptionStatus { get; set; }
         public string AmountCurrency

BTCPayServer/Models/InvoicingModels/PaymentModel.cs

@@ -21,6 +21,7 @@ namespace BTCPayServer.Models.InvoicingModels
         public string CustomLogoLink { get; set; }
         public string DefaultLang { get; set; }
         public List<AvailableCrypto> AvailableCryptos { get; set; } = new List<AvailableCrypto>();
+        public bool IsModal { get; set; }
         public bool IsLightning { get; set; }
         public string CryptoCode { get; set; }
         public string ServerUrl { get; set; }
@@ -60,5 +61,9 @@ namespace BTCPayServer.Models.InvoicingModels
         public string PeerInfo { get; set; }
         public string ChangellyMerchantId { get; set; }
         public decimal? ChangellyAmountDue { get; set; }
+        
+        public bool CoinSwitchEnabled { get; set; }
+        public string CoinSwitchMode { get; set; }
+        public string CoinSwitchMerchantId { get; set; }
     }
 }

BTCPayServer/Models/ManageViewModels/IndexViewModel.cs

@@ -1,4 +1,4 @@
-using BTCPayServer.Validations;
+using BTCPayServer.Validation;
 using System;
 using System.Collections.Generic;
 using System.ComponentModel.DataAnnotations;

BTCPayServer/Models/ServerViewModels/ChargeServiceViewModel.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace BTCPayServer.Models.ServerViewModels
+{
+    public class ChargeServiceViewModel
+    {
+        public string Uri { get; set; }
+        public string APIToken { get; set; }
+        public string AuthenticatedUri { get; set; }
+    }
+}

BTCPayServer/Models/ServerViewModels/LndGrpcServicesViewModel.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
 using System.Linq;
 using System.Threading.Tasks;
 
@@ -10,8 +11,16 @@ namespace BTCPayServer.Models.ServerViewModels
         public string Host { get; set; }
         public bool SSL { get; set; }
         public string Macaroon { get; set; }
+        public string AdminMacaroon { get; set; }
+        public string ReadonlyMacaroon { get; set; }
+        public string InvoiceMacaroon { get; set; }
         public string CertificateThumbprint { get; set; }
+        [Display(Name = "GRPC SSL Cipher suite (GRPC_SSL_CIPHER_SUITES)")]
+        public string GRPCSSLCipherSuites { get; set; }
         public string QRCode { get; set; }
         public string QRCodeLink { get; set; }
+        [Display(Name = "REST Uri")]
+        public string Uri { get; set; }
+        public string ConnectionType { get; internal set; }
     }
 }

BTCPayServer/Models/ServerViewModels/LogsViewModel.cs

@@ -0,0 +1,19 @@
+using System.Collections.Generic;
+using System.IO;
+
+namespace BTCPayServer.Models.ServerViewModels
+{
+    public class LogsViewModel
+    {
+        
+        public string StatusMessage
+        {
+            get; set;
+        }
+
+        public List<FileInfo> LogFiles { get; set; } = new List<FileInfo>();
+        public string Log { get; set; }
+        public int LogFileCount { get; set; }
+        public int LogFileOffset{ get; set; }
+    }
+}

BTCPayServer/Models/ServerViewModels/ServicesViewModel.cs

@@ -11,10 +11,18 @@ namespace BTCPayServer.Models.ServerViewModels
         public class LNDServiceViewModel
         {
             public string Crypto { get; set; }
-            public LndTypes Type { get; set; }
+            public string Type { get; set; }
             public int Index { get; set; }
+            public string Action { get; internal set; }
         }
+
+        public class ExternalService
+        {
+            public string Name { get; set; }
+            public string Link { get; set; }
+        }
+
         public List<LNDServiceViewModel> LNDServices { get; set; } = new List<LNDServiceViewModel>();
-        public bool HasSSH { get; set; }
+        public List<ExternalService> ExternalServices { get; set; } = new List<ExternalService>();
     }
 }

BTCPayServer/Models/ServerViewModels/SparkServicesViewModel.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace BTCPayServer.Models.ServerViewModels
+{
+    public class SparkServicesViewModel
+    {
+        public string SparkLink { get; set; }
+        public bool ShowQR { get; set; }
+    }
+}

BTCPayServer/Models/StoreViewModels/CheckoutExperienceViewModel.cs

@@ -58,7 +58,7 @@ namespace BTCPayServer.Models.StoreViewModels
 
         public void SetLanguages(LanguageService langService, string defaultLang)
         {
-            defaultLang = defaultLang ?? "en-US";
+            defaultLang = langService.GetLanguages().Any(language => language.Code == defaultLang)? defaultLang : "en";
             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);

BTCPayServer/Models/StoreViewModels/DerivationSchemeViewModel.cs

@@ -24,6 +24,7 @@ namespace BTCPayServer.Models.StoreViewModels
         } = new List<(string KeyPath, string Address)>();
 
         public string CryptoCode { get; set; }
+        public string KeyPath { get; set; }
         [Display(Name = "Hint address")]
         public string HintAddress { get; set; }
         public bool Confirmation { get; set; }

BTCPayServer/Models/StoreViewModels/LightningNodeViewModel.cs

@@ -25,5 +25,7 @@ namespace BTCPayServer.Models.StoreViewModels
         public string InternalLightningNode { get; internal set; }
         public bool SkipPortTest { get; set; }
         public bool Enabled { get; set; } = true;
+
+        public string StoreId { get; set; }
     }
 }

BTCPayServer/Models/StoreViewModels/StoreViewModel.cs

@@ -2,7 +2,6 @@
 using BTCPayServer.Services.Invoices;
 using BTCPayServer.Services.Rates;
 using BTCPayServer.Validation;
-using BTCPayServer.Validations;
 using Microsoft.AspNetCore.Mvc.Rendering;
 using System;
 using System.Collections.Generic;
@@ -83,8 +82,8 @@ namespace BTCPayServer.Models.StoreViewModels
             get; set;
         }
 
-        [Display(Name = "Add network fee to invoice (vary with mining fees)")]
-        public bool NetworkFee
+        [Display(Name = "Add additional fee (network fee) to invoice...")]
+        public Data.NetworkFeeMode NetworkFeeMode
         {
             get; set;
         }

BTCPayServer/Models/StoreViewModels/TokensViewModel.cs

@@ -1,4 +1,4 @@
-using BTCPayServer.Validations;
+using BTCPayServer.Validation;
 using Microsoft.AspNetCore.Mvc.Rendering;
 using System;
 using System.Collections.Generic;
@@ -72,5 +72,6 @@ namespace BTCPayServer.Models.StoreViewModels
         [Display(Name = "API Key")]
         public string ApiKey { get; set; }
         public string EncodedApiKey { get; set; }
+        public bool StoreNotConfigured { get; set; }
     }
 }

BTCPayServer/Models/StoreViewModels/UpdateCoinSwitchSettingsViewModel.cs

@@ -0,0 +1,24 @@
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using BTCPayServer.Payments.CoinSwitch;
+using Microsoft.AspNetCore.Mvc.Rendering;
+
+namespace BTCPayServer.Models.StoreViewModels
+{
+    public class UpdateCoinSwitchSettingsViewModel
+    {
+        public string MerchantId { get; set; }
+        public bool Enabled { get; set; }
+
+        [Display(Name = "Integration Mode")]
+        public string Mode { get; set; } = "inline";
+
+        public List<SelectListItem> Modes { get; } = new List<SelectListItem>
+        {
+            new SelectListItem { Value = "popup", Text = "Open in a popup" },
+            new SelectListItem { Value = "inline", Text = "Embed inside Checkout UI " },
+        };
+        
+        public string StatusMessage { get; set; }
+    }
+}

BTCPayServer/Models/WalletViewModels/ListTransactionsViewModel.cs

@@ -10,6 +10,7 @@ namespace BTCPayServer.Models.WalletViewModels
         public class TransactionViewModel
         {
             public DateTimeOffset Timestamp { get; set; }
+            public bool IsConfirmed { get; set; }
             public string Id { get; set; }
             public string Link { get; set; }
             public bool Positive { get; set; }

BTCPayServer/Models/WalletViewModels/WalletSendLedgerModel.cs

@@ -11,5 +11,6 @@ namespace BTCPayServer.Models.WalletViewModels
         public bool SubstractFees { get; set; }
         public decimal Amount { get; set; }
         public string Destination { get; set; }
+        public bool NoChange { get; set; }
     }
 }

BTCPayServer/Models/WalletViewModels/WalletSendModel.cs

@@ -28,6 +28,10 @@ namespace BTCPayServer.Models.WalletViewModels
         [Display(Name = "Fee rate (satoshi per byte)")]
         [Required]
         public int FeeSatoshiPerByte { get; set; }
+
+        [Display(Name = "Make sure no change UTXO is created")]
+        public bool NoChange { get; set; }
+        public bool AdvancedMode { get; set; }
         public decimal? Rate { get; set; }
         public int Divisibility { get; set; }
         public string Fiat { get; set; }

BTCPayServer/Payments/Bitcoin/BitcoinLikeOnChainPaymentMethod.cs

@@ -20,27 +20,21 @@ namespace BTCPayServer.Payments.Bitcoin
             return DepositAddress;
         }
 
-        public decimal GetTxFee()
+        public decimal GetNextNetworkFee()
         {
-            return TxFee.ToDecimal(MoneyUnit.BTC);
+            return NextNetworkFee.ToDecimal(MoneyUnit.BTC);
         }
-
-        public void SetNoTxFee()
-        {
-            TxFee = Money.Zero;
-        }
-
-
         public void SetPaymentDestination(string newPaymentDestination)
         {
             DepositAddress = newPaymentDestination;
         }
+        public Data.NetworkFeeMode NetworkFeeMode { get; set; }
 
         // Those properties are JsonIgnore because their data is inside CryptoData class for legacy reason
         [JsonIgnore]
         public FeeRate FeeRate { get; set; }
         [JsonIgnore]
-        public Money TxFee { get; set; }
+        public Money NextNetworkFee { get; set; }
         [JsonIgnore]
         public String DepositAddress { get; set; }
         public BitcoinAddress GetDepositAddress(Network network)

BTCPayServer/Payments/Bitcoin/BitcoinLikePaymentData.cs

@@ -32,6 +32,7 @@ namespace BTCPayServer.Payments.Bitcoin
         public TxOut Output { get; set; }
         public int ConfirmationCount { get; set; }
         public bool RBF { get; set; }
+        public decimal NetworkFee { get; set; }
 
         /// <summary>
         /// This is set to true if the payment was created before CryptoPaymentData existed in BTCPayServer
@@ -78,5 +79,15 @@ namespace BTCPayServer.Payments.Bitcoin
             }
             return false;
         }
+
+        public BitcoinAddress GetDestination(BTCPayNetwork network)
+        {
+            return Output.ScriptPubKey.GetDestinationAddress(network.NBitcoinNetwork);
+        }
+
+        string CryptoPaymentData.GetDestination(BTCPayNetwork network)
+        {
+            return GetDestination(network).ToString();
+        }
     }
 }

BTCPayServer/Payments/Bitcoin/BitcoinLikePaymentHandler.cs

@@ -48,8 +48,18 @@ namespace BTCPayServer.Payments.Bitcoin
                 throw new PaymentMethodUnavailableException($"Full node not available");
             var prepare = (Prepare)preparePaymentObject;
             Payments.Bitcoin.BitcoinLikeOnChainPaymentMethod onchainMethod = new Payments.Bitcoin.BitcoinLikeOnChainPaymentMethod();
+            onchainMethod.NetworkFeeMode = store.GetStoreBlob().NetworkFeeMode;
             onchainMethod.FeeRate = await prepare.GetFeeRate;
-            onchainMethod.TxFee = onchainMethod.FeeRate.GetFee(100); // assume price for 100 bytes
+            switch (onchainMethod.NetworkFeeMode)
+            {
+                case NetworkFeeMode.Always:
+                    onchainMethod.NextNetworkFee = onchainMethod.FeeRate.GetFee(100); // assume price for 100 bytes
+                    break;
+                case NetworkFeeMode.Never:
+                case NetworkFeeMode.MultiplePaymentsOnly:
+                    onchainMethod.NextNetworkFee = Money.Zero;
+                    break;
+            }
             onchainMethod.DepositAddress = (await prepare.ReserveAddress).ToString();
             return onchainMethod;
         }