stub out apple iap webhook

src/Billing/Controllers/AppleController.cs

@@ -0,0 +1,75 @@
+using Bit.Billing.Utilities;
+using Bit.Core.Enums;
+using Bit.Core.Models.Table;
+using Bit.Core.Repositories;
+using Bit.Core.Services;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
+using System.IO;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Bit.Billing.Controllers
+{
+    [Route("apple")]
+    public class AppleController : Controller
+    {
+        private readonly BillingSettings _billingSettings;
+        private readonly ITransactionRepository _transactionRepository;
+        private readonly IOrganizationRepository _organizationRepository;
+        private readonly IUserRepository _userRepository;
+        private readonly IMailService _mailService;
+        private readonly IPaymentService _paymentService;
+        private readonly ILogger<AppleController> _logger;
+
+        public AppleController(
+            IOptions<BillingSettings> billingSettings,
+            ITransactionRepository transactionRepository,
+            IOrganizationRepository organizationRepository,
+            IUserRepository userRepository,
+            IMailService mailService,
+            IPaymentService paymentService,
+            ILogger<AppleController> logger)
+        {
+            _billingSettings = billingSettings?.Value;
+            _transactionRepository = transactionRepository;
+            _organizationRepository = organizationRepository;
+            _userRepository = userRepository;
+            _mailService = mailService;
+            _paymentService = paymentService;
+            _logger = logger;
+        }
+
+        [HttpPost("iap")]
+        public async Task<IActionResult> PostIap()
+        {
+            if(HttpContext?.Request?.Query == null)
+            {
+                return new BadRequestResult();
+            }
+
+            var key = HttpContext.Request.Query.ContainsKey("key") ?
+                HttpContext.Request.Query["key"].ToString() : null;
+            if(key != _billingSettings.PayPal.WebhookKey)
+            {
+                return new BadRequestResult();
+            }
+
+            string body = null;
+            using(var reader = new StreamReader(HttpContext.Request.Body, Encoding.UTF8))
+            {
+                body = await reader.ReadToEndAsync();
+            }
+
+            if(string.IsNullOrWhiteSpace(body))
+            {
+                return new BadRequestResult();
+            }
+
+            
+
+            return new OkResult();
+        }
+    }
+}