Files
btcpayserver/BTCPayServer/Controllers/AppsPublicController.cs
2018-12-22 15:02:16 +01:00

408 lines
17 KiB
C#

using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Security.Claims;
using System.Threading.Tasks;
using BTCPayServer.Data;
using BTCPayServer.Filters;
using BTCPayServer.Models.AppViewModels;
using BTCPayServer.Rating;
using BTCPayServer.Security;
using BTCPayServer.Services.Apps;
using BTCPayServer.Services.Invoices;
using BTCPayServer.Services.Rates;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Cors;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using NBitpayClient;
using YamlDotNet.RepresentationModel;
using static BTCPayServer.Controllers.AppsController;
namespace BTCPayServer.Controllers
{
public class AppsPublicController : Controller
{
public AppsPublicController(AppsHelper appsHelper,
InvoiceController invoiceController,
RateFetcher rateFetcher,
BTCPayNetworkProvider btcPayNetworkProvider,
InvoiceRepository invoiceRepository)
{
_AppsHelper = appsHelper;
_InvoiceController = invoiceController;
_rateFetcher = rateFetcher;
_btcPayNetworkProvider = btcPayNetworkProvider;
_invoiceRepository = invoiceRepository;
}
private AppsHelper _AppsHelper;
private InvoiceController _InvoiceController;
private readonly RateFetcher _rateFetcher;
private readonly BTCPayNetworkProvider _btcPayNetworkProvider;
private readonly InvoiceRepository _invoiceRepository;
[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 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,
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,
CustomCSSLink = settings.CustomCSSLink
});
}
[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 currency = _AppsHelper.GetCurrencyData(settings.TargetCurrency, false);
return View(await CrowdfundHelper.GetInfo(app, _invoiceRepository, _rateFetcher, _btcPayNetworkProvider, statusMessage ));
}
[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 store = await _AppsHelper.GetStore(app);
store.AdditionalClaims.Add(new Claim(Policies.CanCreateInvoice.Key, store.Id));
var invoice = await _InvoiceController.CreateInvoiceCore(new Invoice()
{
OrderId = appId,
Currency = settings.TargetCurrency,
BuyerEmail = request.Email,
Price = request.Amount,
NotificationURL = settings.NotificationUrl,
FullNotifications = true,
ExtendedNotifications = true,
}, store, HttpContext.Request.GetAbsoluteRoot());
if (request.RedirectToCheckout)
{
return RedirectToAction(nameof(InvoiceController.Checkout), "Invoice",
new {invoiceId = invoice.Data.Id});
}
else
{
return Json(new
{
InvoiceId = invoice.Data.Id
});
}
}
[HttpPost]
[Route("/apps/{appId}/pos")]
[IgnoreAntiforgeryToken]
[EnableCors(CorsPolicies.All)]
public async Task<IActionResult> ViewPointOfSale(string appId,
decimal amount,
string email,
string orderId,
string notificationUrl,
string redirectUrl,
string choiceKey)
{
var app = await _AppsHelper.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;
if (!string.IsNullOrEmpty(choiceKey))
{
var choices = _AppsHelper.Parse(settings.Template, settings.Currency);
var 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 _AppsHelper.GetStore(app);
store.AdditionalClaims.Add(new Claim(Policies.CanCreateInvoice.Key, store.Id));
var invoice = await _InvoiceController.CreateInvoiceCore(new NBitpayClient.Invoice()
{
ItemCode = choiceKey ?? string.Empty,
ItemDesc = title,
Currency = settings.Currency,
Price = price,
BuyerEmail = email,
OrderId = orderId,
NotificationURL = notificationUrl,
RedirectURL = redirectUrl,
FullNotifications = true
}, store, HttpContext.Request.GetAbsoluteRoot());
return RedirectToAction(nameof(InvoiceController.Checkout), "Invoice", new { invoiceId = invoice.Data.Id });
}
}
public class CrowdfundHelper
{
private static async Task<decimal> GetCurrentContributionAmount(InvoiceEntity[] invoices, string primaryCurrency,
RateFetcher rateFetcher, RateRules rateRules)
{
decimal result = 0;
var groupingByCurrency = invoices.GroupBy(entity => entity.ProductInformation.Currency);
var ratesTask = rateFetcher.FetchRates(
groupingByCurrency
.Select((entities) => new CurrencyPair(entities.Key, primaryCurrency))
.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;
var currencyGroup = groupingByCurrency.Single(entities => entities.Key == rateTask.Key.Left);
result += currencyGroup.Sum(entity => entity.ProductInformation.Price / rate.Value);
}));
}
await Task.WhenAll(finalTasks);
return result;
}
public static async Task<ViewCrowdfundViewModel> GetInfo(AppData appData, InvoiceRepository invoiceRepository,
RateFetcher rateFetcher, BTCPayNetworkProvider btcPayNetworkProvider, string statusMessage= null)
{
var settings = appData.GetSettings<CrowdfundSettings>();
var invoices = await GetPaidInvoicesForApp(appData, invoiceRepository);
var rateRules = appData.StoreData.GetStoreBlob().GetRateRules(btcPayNetworkProvider);
var currentAmount = await GetCurrentContributionAmount(
invoices,
settings.TargetCurrency, rateFetcher, rateRules);
var paidInvoices = invoices.Length;
var active = (settings.StartDate == null || DateTime.UtcNow >= settings.StartDate) &&
(settings.EndDate == null || DateTime.UtcNow <= settings.EndDate) &&
(!settings.EnforceTargetAmount || settings.TargetAmount > currentAmount);
return new ViewCrowdfundViewModel()
{
Title = settings.Title,
Tagline = settings.Tagline,
Description = settings.Description,
CustomCSSLink = settings.CustomCSSLink,
MainImageUrl = settings.MainImageUrl,
StoreId = appData.StoreDataId,
AppId = appData.Id,
StartDate = settings.StartDate,
EndDate = settings.EndDate,
TargetAmount = settings.TargetAmount,
TargetCurrency = settings.TargetCurrency,
EnforceTargetAmount = settings.EnforceTargetAmount,
StatusMessage = statusMessage,
Info = new ViewCrowdfundViewModel.CrowdfundInfo()
{
TotalContributors = paidInvoices,
CurrentAmount = currentAmount,
Active = active,
DaysLeft = settings.EndDate.HasValue? (settings.EndDate - DateTime.UtcNow).Value.Days: (int?) null,
DaysLeftToStart = settings.StartDate.HasValue? (settings.StartDate - DateTime.UtcNow).Value.Days: (int?) null,
ShowProgress =active && settings.TargetAmount.HasValue,
ProgressPercentage = currentAmount/ settings.TargetAmount * 100
}
};
}
private static async Task<InvoiceEntity[]> GetPaidInvoicesForApp(AppData appData, InvoiceRepository invoiceRepository)
{
return await invoiceRepository.GetInvoices(new InvoiceQuery()
{
OrderId = appData.Id,
Status = new string[]{ InvoiceState.ToString(InvoiceStatus.Complete)}
});
}
}
public class AppsHelper
{
ApplicationDbContextFactory _ContextFactory;
CurrencyNameTable _Currencies;
public CurrencyNameTable Currencies => _Currencies;
public AppsHelper(ApplicationDbContextFactory contextFactory, CurrencyNameTable currencies)
{
_ContextFactory = contextFactory;
_Currencies = currencies;
}
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();
}
}
public async Task<StoreData> GetStore(AppData app)
{
using (var ctx = _ContextFactory.CreateContext())
{
return await ctx.Stores.FirstOrDefaultAsync(s => s.Id == app.StoreDataId);
}
}
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 PosHolder { Key = (kv.Key as YamlScalarNode)?.Value, Value = kv.Value as YamlMappingNode })
.Where(kv => kv.Value != null)
.Select(c => new ViewPointOfSaleViewModel.Item()
{
Description = c.GetDetailString("description"),
Id = c.Key,
Image = c.GetDetailString("image"),
Title = 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(),
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));
}
public CurrencyData GetCurrencyData(string currency, bool useFallback)
{
return _Currencies.GetCurrencyData(currency, useFallback);
}
public async Task<AppData> GetAppDataIfOwner(string userId, string appId, AppType? type = null)
{
if (userId == null || appId == null)
return null;
using (var ctx = _ContextFactory.CreateContext())
{
var app = await ctx.UserStore
.Where(us => us.ApplicationUserId == userId && us.Role == StoreRoles.Owner)
.SelectMany(us => us.StoreData.Apps.Where(a => a.Id == appId))
.FirstOrDefaultAsync();
if (app == null)
return null;
if (type != null && type.Value.ToString() != app.AppType)
return null;
return app;
}
}
}
}