Allowing for POS to be displayed at website root

BTCPayServer/Controllers/AppsPublicController.cs

@@ -91,6 +91,77 @@ namespace BTCPayServer.Controllers
             });
         }
 
+        [HttpPost]
+        [Route("/apps/{appId}/pos")]
+        [XFrameOptionsAttribute(XFrameOptionsAttribute.XFrameOptions.AllowAll)]
+        [IgnoreAntiforgeryToken]
+        [EnableCors(CorsPolicies.All)]
+        public async Task<IActionResult> ViewPointOfSale(string appId,
+                                                        [ModelBinder(typeof(InvariantDecimalModelBinder))] decimal amount,
+                                                        string email,
+                                                        string orderId,
+                                                        string notificationUrl,
+                                                        string redirectUrl,
+                                                        string choiceKey,
+                                                        string posData = null, CancellationToken cancellationToken = default)
+        {
+            var app = await _AppService.GetApp(appId, AppType.PointOfSale);
+            if (string.IsNullOrEmpty(choiceKey) && amount <= 0)
+            {
+                return RedirectToAction(nameof(ViewPointOfSale), new { appId = appId });
+            }
+            if (app == null)
+                return NotFound();
+            var settings = app.GetSettings<PointOfSaleSettings>();
+            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 = _AppService.Parse(settings.Template, settings.Currency);
+                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 && !settings.EnableShoppingCart)
+                    return NotFound();
+                price = amount;
+                title = settings.Title;
+            }
+            var store = await _AppService.GetStore(app);
+            store.AdditionalClaims.Add(new Claim(Policies.CanCreateInvoice.Key, store.Id));
+            var invoice = await _InvoiceController.CreateInvoiceCore(new CreateInvoiceRequest()
+            {
+                ItemCode = choice?.Id,
+                ItemDesc = title,
+                Currency = settings.Currency,
+                Price = price,
+                BuyerEmail = email,
+                OrderId = orderId,
+                NotificationURL =
+                        string.IsNullOrEmpty(notificationUrl) ? settings.NotificationUrl : notificationUrl,
+                NotificationEmail = settings.NotificationEmail,
+                RedirectURL = redirectUrl ?? Request.GetDisplayUrl(),
+                FullNotifications = true,
+                ExtendedNotifications = true,
+                PosData = string.IsNullOrEmpty(posData) ? null : posData,
+                RedirectAutomatically = settings.RedirectAutomatically,
+            }, store, HttpContext.Request.GetAbsoluteRoot(),
+                new List<string>() { AppService.GetAppInternalTag(appId) },
+                cancellationToken);
+            return RedirectToAction(nameof(InvoiceController.Checkout), "Invoice", new { invoiceId = invoice.Data.Id });
+        }
+
 
         [HttpGet]
         [Route("/apps/{appId}/crowdfund")]
@@ -215,77 +286,6 @@ namespace BTCPayServer.Controllers
 
         }
 
-        [HttpPost]
-        [Route("/apps/{appId}/pos")]
-        [XFrameOptionsAttribute(XFrameOptionsAttribute.XFrameOptions.AllowAll)]
-        [IgnoreAntiforgeryToken]
-        [EnableCors(CorsPolicies.All)]
-        public async Task<IActionResult> ViewPointOfSale(string appId,
-                                                        [ModelBinder(typeof(InvariantDecimalModelBinder))] decimal amount,
-                                                        string email,
-                                                        string orderId,
-                                                        string notificationUrl,
-                                                        string redirectUrl,
-                                                        string choiceKey,
-                                                        string posData = null, CancellationToken cancellationToken = default)
-        {
-            var app = await _AppService.GetApp(appId, AppType.PointOfSale);
-            if (string.IsNullOrEmpty(choiceKey) && amount <= 0)
-            {
-                return RedirectToAction(nameof(ViewPointOfSale), new { appId = appId });
-            }
-            if (app == null)
-                return NotFound();
-            var settings = app.GetSettings<PointOfSaleSettings>();
-            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 = _AppService.Parse(settings.Template, settings.Currency);
-                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 && !settings.EnableShoppingCart)
-                    return NotFound();
-                price = amount;
-                title = settings.Title;
-            }
-            var store = await _AppService.GetStore(app);
-            store.AdditionalClaims.Add(new Claim(Policies.CanCreateInvoice.Key, store.Id));
-            var invoice = await _InvoiceController.CreateInvoiceCore(new CreateInvoiceRequest()
-            {
-                ItemCode = choice?.Id,
-                ItemDesc = title,
-                Currency = settings.Currency,
-                Price = price,
-                BuyerEmail = email,
-                OrderId = orderId,
-                NotificationURL =
-                        string.IsNullOrEmpty(notificationUrl) ? settings.NotificationUrl : notificationUrl,
-                NotificationEmail = settings.NotificationEmail,
-                RedirectURL = redirectUrl ?? Request.GetDisplayUrl(),
-                FullNotifications = true,
-                ExtendedNotifications = true,
-                PosData = string.IsNullOrEmpty(posData) ? null : posData,
-                RedirectAutomatically = settings.RedirectAutomatically,
-            }, store, HttpContext.Request.GetAbsoluteRoot(),
-                new List<string>() { AppService.GetAppInternalTag(appId) },
-                cancellationToken);
-            return RedirectToAction(nameof(InvoiceController.Checkout), "Invoice", new { invoiceId = invoice.Data.Id });
-        }
-
 
         private string GetUserId()
         {

BTCPayServer/Controllers/HomeController.cs

@@ -24,7 +24,7 @@ namespace BTCPayServer.Controllers
             HttpClientFactory = httpClientFactory;
             _cachedServerSettings = cachedServerSettings;
         }
-        
+
         public async Task<IActionResult> Index()
         {
             if (_cachedServerSettings.RootAppType is Services.Apps.AppType.Crowdfund)
@@ -40,6 +40,20 @@ namespace BTCPayServer.Controllers
                     return res; // return 
                 }
             }
+            else if (_cachedServerSettings.RootAppType is Services.Apps.AppType.PointOfSale)
+            {
+                var serviceProvider = HttpContext.RequestServices;
+                var controller = (AppsPublicController)serviceProvider.GetService(typeof(AppsPublicController));
+                controller.Url = Url;
+                controller.ControllerContext = ControllerContext;
+                var res = await controller.ViewPointOfSale(_cachedServerSettings.RootAppId) as ViewResult;
+                if (res != null)
+                {
+                    res.ViewName = "/Views/AppsPublic/ViewPointOfSale.cshtml";
+                    return res; // return 
+                }
+
+            }
 
             return View("Home");
         }

BTCPayServer/Views/AppsPublic/ViewPointOfSale.cshtml

@@ -6,6 +6,7 @@
     ViewData["Title"] = Model.Title;
     Layout = null;
     int[] CustomTipPercentages = Model.CustomTipPercentages;
+    string postUrl = $"/apps/{Model.AppId}/pos";
 }
 
 <!DOCTYPE html>
@@ -220,7 +221,7 @@
                     </table>
                 </div>
                 <div class="modal-footer bg-light">
-                    <form method="post" asp-antiforgery="false" data-buy>
+                    <form method="post" action="@postUrl" asp-antiforgery="false" data-buy>
                         <input id="js-cart-amount" class="form-control" type="hidden" name="amount">
                         <input id="js-cart-posdata" class="form-control" type="hidden" name="posdata">
                         <button id="js-cart-pay" class="btn btn-primary btn-lg" type="submit">
@@ -353,7 +354,7 @@ else
                         <div class="card-footer bg-transparent border-0">
                             @if (item.Custom)
                             {
-                                <form method="post" asp-antiforgery="false" data-buy>
+                                <form method="post" action="@postUrl" asp-antiforgery="false" data-buy>
                                     <input type="hidden" name="choicekey" value="@item.Id"/>
                                     <div class="input-group">
                                         <div class="input-group-prepend">
@@ -369,7 +370,7 @@ else
                             }
                             else
                             {
-                                <form method="post" asp-antiforgery="false">
+                                <form method="post" action="@postUrl" asp-antiforgery="false">
                                     <button type="submit" name="choiceKey" class="js-add-cart btn btn-primary" value="@item.Id">
                                         @String.Format(Model.ButtonText, @item.Price.Formatted)</button>
                                 </form>
@@ -386,7 +387,7 @@ else
                             
                         </div>
                         <div class="card-footer bg-transparent border-0">
-                            <form method="post" asp-antiforgery="false" data-buy>
+                            <form method="post" action="@postUrl" asp-antiforgery="false" data-buy>
                                 <div class="input-group">
                                     <div class="input-group-prepend">
                                         <span class="input-group-text">@Model.CurrencySymbol</span>