Added billing/subscriptions

BillingCore/BillingFactory.cs

@@ -9,7 +9,7 @@ namespace Teknik.BillingCore
 {
     public static class BillingFactory
     {
-        public static BillingService GetStorageService(BillingConfig config)
+        public static BillingService GetBillingService(BillingConfig config)
         {
             switch (config.Type)
             {

BillingCore/BillingService.cs

@@ -1,4 +1,5 @@
-using System;
+using Microsoft.AspNetCore.Http;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -18,7 +19,7 @@ namespace Teknik.BillingCore
         }
 
         public abstract object GetCustomer(string id);
-        public abstract bool CreateCustomer(string email);
+        public abstract string CreateCustomer(string username, string email);
 
         public abstract List<Product> GetProductList();
         public abstract Product GetProduct(string productId);
@@ -28,10 +29,15 @@ namespace Teknik.BillingCore
 
         public abstract List<Subscription> GetSubscriptionList(string customerId);
         public abstract Subscription GetSubscription(string subscriptionId);
-        public abstract Tuple<bool, string, string> CreateSubscription(string customerId, string priceId);
-        public abstract bool EditSubscription(Subscription subscription);
-        public abstract bool RemoveSubscription(string subscriptionId);
+        public abstract Subscription CreateSubscription(string customerId, string priceId);
+        public abstract Subscription EditSubscriptionPrice(string subscriptionId, string priceId);
+        public abstract bool CancelSubscription(string subscriptionId);
 
-        public abstract void SyncSubscriptions();
+        public abstract CheckoutSession CreateCheckoutSession(string customerId, string priceId, string successUrl, string cancelUrl);
+        public abstract CheckoutSession GetCheckoutSession(string sessionId);
+
+        public abstract Task<Event> ParseEvent(HttpRequest request);
+        public abstract CheckoutSession ProcessCheckoutCompletedEvent(Event e);
+        public abstract Customer ProcessCustomerEvent(Event e);
     }
 }

BillingCore/Models/CheckoutResult.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Teknik.BillingCore.Models
+{
+    public class CheckoutResult
+    {
+        public string CustomerId { get; set; }
+
+        public string SubscriptionId { get; set; }
+
+        public PaymentStatus PaymentStatus { get; set; }
+    }
+}

BillingCore/Models/CheckoutSession.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Teknik.BillingCore.Models
+{
+    public class CheckoutSession
+    {
+        public string PaymentIntentId { get; set; }
+        public string CustomerId { get; set; }
+        public string SubscriptionId { get; set; }
+        public PaymentStatus PaymentStatus { get; set; }
+        public string Url { get; set; }
+    }
+}

BillingCore/Models/Customer.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Teknik.BillingCore.Models
+{
+    public class Customer
+    {
+        public string CustomerId { get; set; }
+
+        public List<Subscription> Subscriptions { get; set; }
+
+        public Customer()
+        {
+            Subscriptions = new List<Subscription>();
+        }
+    }
+}

BillingCore/Models/Event.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Teknik.BillingCore.Models
+{
+    public class Event
+    {
+        public EventType EventType { get; set; }
+
+        public object Data { get; set; }
+    }
+}

BillingCore/Models/EventType.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Teknik.BillingCore.Models
+{
+    public enum EventType
+    {
+        Unknown,
+        CheckoutComplete,
+        SubscriptionDeleted,
+        SubscriptionUpdated
+    }
+}

BillingCore/Models/PaymentStatus.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Teknik.BillingCore.Models
+{
+    public enum PaymentStatus
+    {
+        Paid,
+        Unpaid,
+        NoPaymentRequired
+    }
+}

BillingCore/Models/Price.cs

@@ -16,6 +16,7 @@ namespace Teknik.BillingCore.Models
         public decimal? Amount { get; set; }
         public string Currency { get; set; }
         public long Storage { get; set; }
+        public long FileSize { get; set; }
         public Interval Interval { get; set; }
     }
 }

BillingCore/Models/Subscription.cs

@@ -12,5 +12,6 @@ namespace Teknik.BillingCore.Models
         public string CustomerId { get; set; }
         public SubscriptionStatus Status { get; set; }
         public List<Price> Prices { get; set; }
+        public string ClientSecret { get; set; }
     }
 }

BillingCore/StripeService.cs

@@ -1,9 +1,12 @@
-using Stripe;
+using Microsoft.AspNetCore.Http;
+using Stripe;
 using System;
 using System.Collections.Generic;
+using System.IO;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using System.Web;
 using Teknik.BillingCore.Models;
 using Teknik.Configuration;
 
@@ -16,21 +19,33 @@ namespace Teknik.BillingCore
             StripeConfiguration.ApiKey = config.StripeSecretApiKey;
         }
 
-        public override object GetCustomer(string id)
+        public override string GetCustomer(string email)
+        {
+            if (!string.IsNullOrEmpty(email))
             {
                 var service = new CustomerService();
-            return service.Get(id);
+                var foundCustomer = service.Get(email);
+                if (foundCustomer != null)
+                    return foundCustomer.Id;
             }
 
-        public override bool CreateCustomer(string email)
+            return null;
+        }
+
+        public override string CreateCustomer(string username, string email)
         {
+            if (string.IsNullOrEmpty(username))
+                throw new ArgumentNullException("username");
+
             var options = new CustomerCreateOptions
             {
+                Name = username,
                 Email = email,
+                Description = $"Customer for account {username}"
             };
             var service = new CustomerService();
             var customer = service.Create(options);
-            return customer != null;
+            return customer.Id;
         }
 
         public override List<Models.Product> GetProductList()
@@ -51,11 +66,14 @@ namespace Teknik.BillingCore
         }
 
         public override Models.Product GetProduct(string productId)
+        {
+            if (!string.IsNullOrEmpty(productId))
             {
                 var productService = new ProductService();
                 Stripe.Product product = productService.Get(productId);
                 if (product != null)
                     return ConvertProduct(product);
+            }
 
             return null;
         }
@@ -63,11 +81,14 @@ namespace Teknik.BillingCore
         public override List<Models.Price> GetPriceList(string productId)
         {
             var foundPrices = new List<Models.Price>();
+            if (!string.IsNullOrEmpty(productId))
+            {
                 var options = new PriceListOptions
                 {
                     Active = true,
                     Product = productId
                 };
+                options.AddExpand("data.product");
 
                 var priceService = new PriceService();
                 var priceList = priceService.List(options);
@@ -78,16 +99,21 @@ namespace Teknik.BillingCore
                         foundPrices.Add(ConvertPrice(price));
                     }
                 }
+            }
+
             return foundPrices;
         }
 
         public override Models.Price GetPrice(string priceId)
         {
-
+            if (!string.IsNullOrEmpty(priceId))
+            {
+                var options = new PriceGetOptions();
                 var priceService = new PriceService();
-            var price = priceService.Get(priceId);
+                var price = priceService.Get(priceId, options);
                 if (price != null)
                     return ConvertPrice(price);
+            }
 
             return null;
         }
@@ -117,16 +143,22 @@ namespace Teknik.BillingCore
         }
 
         public override Models.Subscription GetSubscription(string subscriptionId)
+        {
+            if (!string.IsNullOrEmpty(subscriptionId))
             {
                 var subService = new SubscriptionService();
                 var sub = subService.Get(subscriptionId);
                 if (sub != null)
                     return ConvertSubscription(sub);
+            }
 
             return null;
         }
 
-        public override Tuple<bool, string, string> CreateSubscription(string customerId, string priceId)
+        public override Models.Subscription CreateSubscription(string customerId, string priceId)
+        {
+            if (!string.IsNullOrEmpty(customerId) &&
+                !string.IsNullOrEmpty(priceId))
             {
                 // Create the subscription. Note we're expanding the Subscription's
                 // latest invoice and that invoice's payment_intent
@@ -142,38 +174,146 @@ namespace Teknik.BillingCore
                         },
                     },
                     PaymentBehavior = "default_incomplete",
+                    CancelAtPeriodEnd = false
                 };
                 subscriptionOptions.AddExpand("latest_invoice.payment_intent");
                 var subscriptionService = new SubscriptionService();
+                var subscription = subscriptionService.Create(subscriptionOptions);
+
+                return ConvertSubscription(subscription);
+            }
+            return null;
+        }
+
+        public override Models.Subscription EditSubscriptionPrice(string subscriptionId, string priceId)
+        {
+            if (!string.IsNullOrEmpty(subscriptionId))
+            {
+                var subscriptionService = new SubscriptionService();
+                var subscription = subscriptionService.Get(subscriptionId);
+                if (subscription != null)
+                {
+                    var subscriptionOptions = new SubscriptionUpdateOptions()
+                    {
+                        Items = new List<SubscriptionItemOptions>
+                        {
+                            new SubscriptionItemOptions
+                            {
+                                Id = subscription.Items.Data[0].Id,
+                                Price = priceId,
+                            },
+                        },
+                        CancelAtPeriodEnd = false,
+                        ProrationBehavior = "create_prorations"
+                    };
+                    subscriptionOptions.AddExpand("latest_invoice.payment_intent");
+                    var result = subscriptionService.Update(subscriptionId, subscriptionOptions);
+                    if (result != null)
+                        return ConvertSubscription(result);
+                }
+            }
+            return null;
+        }
+
+        public override bool CancelSubscription(string subscriptionId)
+        {
+            if (!string.IsNullOrEmpty(subscriptionId))
+            {
+                var cancelOptions = new SubscriptionCancelOptions()
+                {
+                    InvoiceNow = true
+                };
+                var subscriptionService = new SubscriptionService();
+                var subscription = subscriptionService.Cancel(subscriptionId, cancelOptions);
+                return subscription.Status == "canceled";
+            }
+            return false;
+        }
+
+        public override CheckoutSession CreateCheckoutSession(string customerId, string priceId, string successUrl, string cancelUrl)
+        {
+            // Modify Success URL to include session ID variable
+            var uriBuilder = new UriBuilder(successUrl);
+            var paramValues = HttpUtility.ParseQueryString(uriBuilder.Query);
+            paramValues.Add("session_id", "{CHECKOUT_SESSION_ID}");
+            uriBuilder.Query = paramValues.ToString();
+            successUrl = uriBuilder.Uri.ToString();
+
+            var checkoutService = new Stripe.Checkout.SessionService();
+            var sessionOptions = new Stripe.Checkout.SessionCreateOptions()
+            {
+                LineItems = new List<Stripe.Checkout.SessionLineItemOptions>()
+                {
+                    new Stripe.Checkout.SessionLineItemOptions()
+                    {
+                        Price = priceId,
+                        Quantity = 1
+                    }
+                },
+                PaymentMethodTypes = new List<string>()
+                {
+                    "card"
+                },                
+                Mode = "subscription",
+                SuccessUrl = successUrl,
+                CancelUrl = cancelUrl,
+                Customer = customerId
+            };
+            sessionOptions.AddExpand("customer");
+            var session = checkoutService.Create(sessionOptions);
+            return ConvertCheckoutSession(session);
+        }
+
+        public override async Task<Models.Event> ParseEvent(HttpRequest request)
+        {
+            var json = await new StreamReader(request.Body).ReadToEndAsync();
+
             try
             {
-                Stripe.Subscription subscription = subscriptionService.Create(subscriptionOptions);
+                var stripeEvent = EventUtility.ConstructEvent(
+                  json,
+                  request.Headers["Stripe-Signature"],
+                  Config.StripeWebhookSecret
+                );
 
-                return new Tuple<bool, string, string>(true, subscription.Id, subscription.LatestInvoice.PaymentIntent.ClientSecret);
+                return ConvertEvent(stripeEvent);
             }
-            catch (StripeException e)
+            catch (StripeException)
             {
-                return new Tuple<bool, string, string>(false, $"Failed to create subscription. {e}", null);
             }
+            return null;
         }
 
-        public override bool EditSubscription(Models.Subscription subscription)
+        public override CheckoutSession ProcessCheckoutCompletedEvent(Models.Event ev)
         {
-            throw new NotImplementedException();
+            // Handle the checkout.session.completed event
+            var session = ev.Data as Stripe.Checkout.Session;
+
+            return ConvertCheckoutSession(session);
         }
 
-        public override bool RemoveSubscription(string subscriptionId)
+        public override Models.Customer ProcessCustomerEvent(Models.Event ev)
         {
-            throw new NotImplementedException();
+            // Handle the checkout.session.completed event
+            var customer = ev.Data as Stripe.Customer;
+
+            return ConvertCustomer(customer);
         }
 
-        public override void SyncSubscriptions()
+        public override CheckoutSession GetCheckoutSession(string sessionId)
         {
-            throw new NotImplementedException();
+            var checkoutService = new Stripe.Checkout.SessionService();
+            var sessionOptions = new Stripe.Checkout.SessionGetOptions();
+            sessionOptions.AddExpand("customer");
+            var session = checkoutService.Get(sessionId, sessionOptions);
+
+            return ConvertCheckoutSession(session);
         }
 
         private Models.Product ConvertProduct(Stripe.Product product)
         {
+            if (product == null)
+                return null;
             return new Models.Product()
             {
                 ProductId = product.Id,
@@ -185,6 +325,8 @@ namespace Teknik.BillingCore
 
         private Models.Price ConvertPrice(Stripe.Price price)
         {
+            if (price == null)
+                return null;
             var interval = Interval.Once;
             if (price.Type == "recurring")
             {
@@ -216,11 +358,15 @@ namespace Teknik.BillingCore
                 convPrice.Amount = price.UnitAmountDecimal / 100;
             if (price.Metadata.ContainsKey("storage"))
                 convPrice.Storage = long.Parse(price.Metadata["storage"]);
+            if (price.Metadata.ContainsKey("fileSize"))
+                convPrice.FileSize = long.Parse(price.Metadata["fileSize"]);
             return convPrice;
         }
 
         private Models.Subscription ConvertSubscription(Stripe.Subscription subscription)
         {
+            if (subscription == null)
+                return null;
             var status = SubscriptionStatus.Incomplete;
             switch (subscription.Status)
             {
@@ -259,7 +405,77 @@ namespace Teknik.BillingCore
                 Id = subscription.Id,
                 CustomerId = subscription.CustomerId,
                 Status = status,
-                Prices = prices
+                Prices = prices,
+                ClientSecret = subscription.LatestInvoice?.PaymentIntent?.ClientSecret
+            };
+        }
+
+        private CheckoutSession ConvertCheckoutSession(Stripe.Checkout.Session session)
+        {
+            if (session == null)
+                return null;
+
+
+            var paymentStatus = PaymentStatus.Unpaid;
+            switch (session.PaymentStatus)
+            {
+                case "paid":
+                    paymentStatus = PaymentStatus.Paid;
+                    break;
+                case "unpaid":
+                    paymentStatus = PaymentStatus.Unpaid;
+                    break;
+                case "no_payment_required":
+                    paymentStatus = PaymentStatus.NoPaymentRequired;
+                    break;
+            }
+
+            return new CheckoutSession()
+            {
+                PaymentIntentId = session.PaymentIntentId,
+                CustomerId = session.Customer.Id,
+                SubscriptionId = session.SubscriptionId,
+                PaymentStatus = paymentStatus,
+                Url = session.Url
+            };
+        }
+
+        private Models.Customer ConvertCustomer(Stripe.Customer customer)
+        {
+            var returnCust = new Models.Customer()
+            {
+                CustomerId = customer.Id
+            };
+
+            if (customer.Subscriptions.Any())
+                returnCust.Subscriptions = customer.Subscriptions.Select(s => ConvertSubscription(s)).ToList();
+
+            return returnCust;
+        }
+
+        private Models.Event ConvertEvent(Stripe.Event ev)
+        {
+            if (ev == null)
+                return null;
+
+            var eventType = EventType.Unknown;
+            switch (ev.Type)
+            {
+                case Events.CheckoutSessionCompleted:
+                    eventType = EventType.CheckoutComplete;
+                    break;
+                case Events.CustomerSubscriptionDeleted:
+                    eventType = EventType.SubscriptionDeleted;
+                    break;
+                case Events.CustomerSubscriptionUpdated:
+                    eventType = EventType.SubscriptionUpdated;
+                    break;
+            }
+
+            return new Models.Event()
+            {
+                EventType = eventType,
+                Data = ev.Data.Object
             };
         }
     }

BillingService/Program.cs

@@ -1,9 +1,14 @@
 using System;
 using System.Collections.Generic;
 using System.IO;
+using System.Linq;
 using System.Reflection;
 using CommandLine;
 using Microsoft.EntityFrameworkCore;
+using Teknik.Areas.Users.Models;
+using Teknik.Areas.Users.Utility;
+using Teknik.BillingCore;
+using Teknik.BillingCore.Models;
 using Teknik.Configuration;
 using Teknik.Data;
 using Teknik.Utilities;
@@ -43,6 +48,7 @@ namespace Teknik.BillingService
                             if (options.SyncSubscriptions)
                             {
                                 // Sync subscription information
+                                SyncSubscriptions(config, db);
                             }
                         }
 
@@ -65,6 +71,44 @@ namespace Teknik.BillingService
             return -1;
         }
 
+        public static void SyncSubscriptions(Config config, TeknikEntities db)
+        {
+            // Get Biling Service
+            var billingService = BillingFactory.GetBillingService(config.BillingConfig);
+
+            foreach (var user in db.Users)
+            {
+                string email = UserHelper.GetUserEmailAddress(config, user.Username);
+                if (user.BillingCustomer != null)
+                {
+                    // get the subscriptions for this user
+                    var subscriptions = billingService.GetSubscriptionList(user.BillingCustomer.CustomerId);
+                    var uploadPrice = subscriptions.SelectMany(s => s.Prices).FirstOrDefault(p => p.ProductId == config.BillingConfig.UploadProductId);
+                    if (uploadPrice != null)
+                    {
+                        // Process Upload Settings
+                        user.UploadSettings.MaxUploadStorage = uploadPrice.Storage;
+                        user.UploadSettings.MaxUploadFileSize = uploadPrice.FileSize;
+                    }
+                    var emailPrice = subscriptions.SelectMany(s => s.Prices).FirstOrDefault(p => p.ProductId == config.BillingConfig.EmailProductId);
+                    if (emailPrice != null)
+                    {
+                        UserHelper.EnableUserEmail(config, email);
+                        UserHelper.EditUserEmailMaxSize(config, email, (int)emailPrice.Storage);
+                    }
+                }
+                else
+                {
+                    // No customer, so let's reset their info
+                    user.UploadSettings.MaxUploadStorage = config.UploadConfig.MaxStorage;
+                    user.UploadSettings.MaxUploadFileSize = config.UploadConfig.MaxUploadFileSize;
+                    UserHelper.DisableUserEmail(config, email);
+                }
+                db.Entry(user).State = EntityState.Modified;
+                db.SaveChanges();
+            }
+        }
+
         public static void Output(string message)
         {
             Console.WriteLine(message);

Configuration/BillingConfig.cs

@@ -11,6 +11,7 @@ namespace Teknik.Configuration
         public BillingType Type { get; set; }
         public string StripePublishApiKey { get; set; }
         public string StripeSecretApiKey { get; set; }
+        public string StripeWebhookSecret { get; set; }
 
         public string UploadProductId { get; set; }
         public string EmailProductId { get; set; }
@@ -20,6 +21,7 @@ namespace Teknik.Configuration
             Type = BillingType.Stripe;
             StripePublishApiKey = null;
             StripeSecretApiKey = null;
+            StripeWebhookSecret = null;
         }
     }
 }

Configuration/UploadConfig.cs

@@ -7,18 +7,12 @@ namespace Teknik.Configuration
     {
         public bool UploadEnabled { get; set; }
         public bool DownloadEnabled { get; set; }
-        // Max upload size in bytes
-        public long MaxUploadSize { get; set; }
-        // Max Upload Size for basic users
-        public long MaxUploadSizeBasic { get; set; }
-        // Max Upload Size for premium users
-        public long MaxUploadSizePremium { get; set; }
-        // Gets the maximum download size before they are forced to the download page
-        public long MaxDownloadSize { get; set; }
-        // Maximum total size for basic users
-        public long MaxTotalSizeBasic { get; set; }
-        // Maximum total size for basic users
-        public long MaxTotalSizePremium { get; set; }
+        // Max upload size in bytes for free/anonymous users
+        public long MaxUploadFileSize { get; set; }
+        // Maximum file size before they are forced to the download page
+        public long MaxDownloadFileSize { get; set; }
+        // Maximum storage for free users
+        public long MaxStorage { get; set; }
         public int UrlLength { get; set; }
         public int DeleteKeyLength { get; set; }
         public int KeySize { get; set; }
@@ -45,12 +39,9 @@ namespace Teknik.Configuration
         {
             UploadEnabled = true;
             DownloadEnabled = true;
-            MaxUploadSize = 100000000;
-            MaxUploadSizeBasic = 100000000;
-            MaxUploadSizePremium = 100000000;
-            MaxDownloadSize = 100000000;
-            MaxTotalSizeBasic = 1000000000;
-            MaxTotalSizePremium = 5000000000;
+            MaxUploadFileSize = 1073741824;
+            MaxDownloadFileSize = 1073741824;
+            MaxStorage = 5368709120;
             UrlLength = 5;
             DeleteKeyLength = 24;
             KeySize = 256;

ServiceWorker/Program.cs

@@ -163,15 +163,12 @@ namespace Teknik.ServiceWorker
                     byte[] ivBytes = Encoding.UTF8.GetBytes(upload.IV);
 
 
-                    long maxUploadSize = config.UploadConfig.MaxUploadSize;
+                    long maxUploadSize = config.UploadConfig.MaxUploadFileSize;
                     if (upload.User != null)
                     {
-                        maxUploadSize = config.UploadConfig.MaxUploadSizeBasic;
-                        IdentityUserInfo userInfo = await IdentityHelper.GetIdentityUserInfo(config, upload.User.Username);
-                        if (userInfo.AccountType == AccountType.Premium)
-                        {
-                            maxUploadSize = config.UploadConfig.MaxUploadSizePremium;
-                        }
+                        // Check account total limits
+                        if (upload.User.UploadSettings.MaxUploadFileSize != null)
+                            maxUploadSize = upload.User.UploadSettings.MaxUploadFileSize.Value;
                     }
 
                     using (AesCounterStream aesStream = new AesCounterStream(fileStream, false, keyBytes, ivBytes))

ServiceWorker/TeknikMigration.cs

@@ -3,12 +3,15 @@ using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
+using System.Text;
 using System.Threading.Tasks;
 using Teknik.Areas.Paste;
 using Teknik.Areas.Paste.Models;
 using Teknik.Configuration;
 using Teknik.Data;
+using Teknik.StorageService;
 using Teknik.Utilities;
+using Teknik.Utilities.Cryptography;
 
 namespace Teknik.ServiceWorker
 {
@@ -18,50 +21,8 @@ namespace Teknik.ServiceWorker
         {
             bool success = false;
             
-            MigratePastes(db, config);
 
             return success;
         }
-
-        public static void MigratePastes(TeknikEntities db, Config config)
-        {
-            if (!Directory.Exists(config.PasteConfig.PasteDirectory))
-            {
-                Directory.CreateDirectory(config.PasteConfig.PasteDirectory);
-            }
-
-            var pastes = db.Pastes.Select(p => p.PasteId).ToList();
-
-            foreach (var pasteId in pastes)
-            {
-                var paste = db.Pastes.Where(p => p.PasteId == pasteId).FirstOrDefault();
-                if (!string.IsNullOrEmpty(paste.Content) && string.IsNullOrEmpty(paste.FileName) && string.IsNullOrEmpty(paste.HashedPassword))
-                {
-                    // Generate a unique file name that does not currently exist
-                    string filePath = FileHelper.GenerateRandomFileName(config.PasteConfig.PasteDirectory, config.PasteConfig.FileExtension, 10);
-                    string fileName = Path.GetFileName(filePath);
-
-                    string key = PasteHelper.GenerateKey(config.PasteConfig.KeySize);
-                    string iv = PasteHelper.GenerateIV(config.PasteConfig.BlockSize);
-
-                    // Encrypt the contents to the file
-                    PasteHelper.EncryptContents(paste.Content, filePath, null, key, iv, config.PasteConfig.KeySize, config.PasteConfig.ChunkSize);
-
-                    // Generate a deletion key
-                    paste.DeleteKey = StringHelper.RandomString(config.PasteConfig.DeleteKeyLength);
-
-                    paste.Key = key;
-                    paste.KeySize = config.PasteConfig.KeySize;
-                    paste.IV = iv;
-                    paste.BlockSize = config.PasteConfig.BlockSize;
-
-                    paste.FileName = fileName;
-                    paste.Content = string.Empty;
-
-                    db.Entry(paste).State = EntityState.Modified;
-                    db.SaveChanges();
-                }
-            }
-        }
     }
 }

Teknik/App_Data/endpointMappings.json

@@ -187,6 +187,116 @@
             "action": "Index"
         }
     },
+    {
+        "Name": "Billing.Index",
+        "HostTypes": [ "Full" ],
+        "SubDomains": [ "billing" ],
+        "Pattern": "",
+        "Area": "Billing",
+        "Defaults": {
+            "controller": "Billing",
+            "action": "Index"
+        }
+    },
+    {
+        "Name": "Billing.Subscriptions",
+        "HostTypes": [ "Full" ],
+        "SubDomains": [ "billing" ],
+        "Pattern": "Subscriptions",
+        "Area": "Billing",
+        "Defaults": {
+            "controller": "Billing",
+            "action": "ViewSubscriptions"
+        }
+    },
+    {
+        "Name": "Billing.ViewPaymentInfo",
+        "HostTypes": [ "Full" ],
+        "SubDomains": [ "billing" ],
+        "Pattern": "PaymentInfo",
+        "Area": "Billing",
+        "Defaults": {
+            "controller": "Billing",
+            "action": "ViewPaymentInfo"
+        }
+    },
+    {
+        "Name": "Billing.Subscribe",
+        "HostTypes": [ "Full" ],
+        "SubDomains": [ "billing" ],
+        "Pattern": "Subscribe/{priceId}/{subscriptionId?}",
+        "Area": "Billing",
+        "Defaults": {
+            "controller": "Billing",
+            "action": "Subscribe"
+        }
+    },
+    {
+        "Name": "Billing.Checkout",
+        "HostTypes": [ "Full" ],
+        "SubDomains": [ "billing" ],
+        "Pattern": "Checkout/{priceId}",
+        "Area": "Billing",
+        "Defaults": {
+            "controller": "Billing",
+            "action": "Checkout"
+        }
+    },
+    {
+        "Name": "Billing.CheckoutComplete",
+        "HostTypes": [ "Full" ],
+        "SubDomains": [ "billing" ],
+        "Pattern": "CheckoutComplete",
+        "Area": "Billing",
+        "Defaults": {
+            "controller": "Billing",
+            "action": "CheckoutComplete"
+        }
+    },
+    {
+        "Name": "Billing.EditSubscription",
+        "HostTypes": [ "Full" ],
+        "SubDomains": [ "billing" ],
+        "Pattern": "EditSubscription/{priceId}",
+        "Area": "Billing",
+        "Defaults": {
+            "controller": "Billing",
+            "action": "EditSubscription"
+        }
+    },
+    {
+        "Name": "Billing.CancelSubscription",
+        "HostTypes": [ "Full" ],
+        "SubDomains": [ "billing" ],
+        "Pattern": "CancelSubscription/{subscriptionId}/{productId}",
+        "Area": "Billing",
+        "Defaults": {
+            "controller": "Billing",
+            "action": "CancelSubscription"
+        }
+    },
+    {
+        "Name": "Billing.SubscriptionSuccess",
+        "HostTypes": [ "Full" ],
+        "SubDomains": [ "billing" ],
+        "Pattern": "SubscriptionSuccess/{priceId}",
+        "Area": "Billing",
+        "Defaults": {
+            "controller": "Billing",
+            "action": "SubscriptionSuccess"
+        }
+    },
+    {
+        "Name": "Billing.Action",
+        "HostTypes": [ "Full" ],
+        "SubDomains": [ "billing" ],
+        "Pattern": "Action/{action}",
+        "Area": "Billing",
+        "Defaults": {
+            "controller": "Billing",
+            "action": "Index"
+        }
+    },
     {
         "Name": "Blog.Blog",
         "HostTypes": [ "Full" ],
@@ -902,6 +1012,17 @@
             "action": "AccountSettings"
         }
     },
+    {
+        "Name": "User.BillingSettings",
+        "HostTypes": [ "Full" ],
+        "SubDomains": [ "account" ],
+        "Pattern": "Settings/Billing",
+        "Area": "User",
+        "Defaults": {
+            "controller": "User",
+            "action": "BillingSettings"
+        }
+    },
     {
         "Name": "User.SecuritySettings",
         "HostTypes": [ "Full" ],
@@ -1045,50 +1166,6 @@
             "action": "ViewRawPGP"
         }
     },
-    {
-        "Name": "Billing.Index",
-        "HostTypes": [ "Full" ],
-        "SubDomains": [ "billing" ],
-        "Pattern": "",
-        "Area": "Billing",
-        "Defaults": {
-            "controller": "Billing",
-            "action": "Index"
-        }
-    },
-    {
-        "Name": "Billing.Subscriptions",
-        "HostTypes": [ "Full" ],
-        "SubDomains": [ "billing" ],
-        "Pattern": "Subscriptions",
-        "Area": "Billing",
-        "Defaults": {
-            "controller": "Billing",
-            "action": "ViewSubscriptions"
-        }
-    },
-    {
-        "Name": "Billing.ViewPaymentInfo",
-        "HostTypes": [ "Full" ],
-        "SubDomains": [ "billing" ],
-        "Pattern": "PaymentInfo",
-        "Area": "Billing",
-        "Defaults": {
-            "controller": "Billing",
-            "action": "ViewPaymentInfo"
-        }
-    },
-    {
-        "Name": "Billing.Action",
-        "HostTypes": [ "Full" ],
-        "SubDomains": [ "billing" ],
-        "Pattern": "Action/{action}",
-        "Area": "Billing",
-        "Defaults": {
-            "controller": "Billing",
-            "action": "Index"
-        }
-    },
     {
         "Name": "Vault.Index",
         "HostTypes": [ "Full" ],

Teknik/Areas/API/V1/Controllers/BillingAPIv1Controller.cs

@@ -0,0 +1,104 @@
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Threading.Tasks;
+using Teknik.Areas.Users.Models;
+using Teknik.Areas.Users.Utility;
+using Teknik.BillingCore;
+using Teknik.BillingCore.Models;
+using Teknik.Configuration;
+using Teknik.Data;
+using Teknik.Logging;
+
+namespace Teknik.Areas.API.V1.Controllers
+{
+    public class BillingAPIv1Controller : APIv1Controller
+    {
+        public BillingAPIv1Controller(ILogger<Logger> logger, Config config, TeknikEntities dbContext) : base(logger, config, dbContext) { }
+
+        public async Task<IActionResult> HandleCheckoutCompleteEvent()
+        {
+            var billingService = BillingFactory.GetBillingService(_config.BillingConfig);
+
+            var billingEvent = await billingService.ParseEvent(Request);
+
+            if (billingEvent == null)
+                return BadRequest();
+
+            var session = billingService.ProcessCheckoutCompletedEvent(billingEvent);
+            if (session.PaymentStatus == PaymentStatus.Paid)
+            {
+                var subscription = billingService.GetSubscription(session.SubscriptionId);
+
+                ProcessSubscription(session.CustomerId, subscription);
+            }
+
+            return Ok();
+        }
+
+        public async Task<IActionResult> HandleSubscriptionChange()
+        {
+            var billingService = BillingFactory.GetBillingService(_config.BillingConfig);
+
+            var billingEvent = await billingService.ParseEvent(Request);
+
+            if (billingEvent == null)
+                return BadRequest();
+
+            var customerEvent = billingService.ProcessCustomerEvent(billingEvent);
+            
+            foreach (var subscription in customerEvent.Subscriptions)
+            {
+                ProcessSubscription(customerEvent.CustomerId, subscription);
+            }
+
+            return Ok();
+        }
+
+        private void ProcessSubscription(string customerId, Subscription subscription)
+        {
+            // They have paid, so let's get their subscription and update their user settings
+            var user = _dbContext.Users.FirstOrDefault(u => u.BillingCustomer != null &&
+                                                            u.BillingCustomer.CustomerId == customerId);
+            if (user != null)
+            {
+                var isActive = subscription.Status == SubscriptionStatus.Active;
+                foreach (var price in subscription.Prices)
+                {
+                    ProcessPrice(user, price, isActive);
+                }
+            }
+        }
+
+        private void ProcessPrice(User user, Price price, bool active)
+        {
+            // What type of subscription is this
+            if (_config.BillingConfig.UploadProductId == price.ProductId)
+            {
+                // Process Upload Settings
+                user.UploadSettings.MaxUploadStorage = active ? price.Storage : _config.UploadConfig.MaxStorage;
+                user.UploadSettings.MaxUploadFileSize = active ? price.FileSize : _config.UploadConfig.MaxUploadFileSize;
+                _dbContext.Entry(user).State = EntityState.Modified;
+                _dbContext.SaveChanges();
+            }
+            else if (_config.BillingConfig.EmailProductId == price.ProductId)
+            {
+                // Process an email subscription
+                string email = UserHelper.GetUserEmailAddress(_config, user.Username);
+                if (active)
+                {
+                    UserHelper.EnableUserEmail(_config, email);
+                    UserHelper.EditUserEmailMaxSize(_config, email, (int)price.Storage);
+                }
+                else
+                {
+                    UserHelper.DisableUserEmail(_config, email);
+                }
+            }
+        }
+    }
+}

Teknik/Areas/API/V1/Controllers/UploadAPIv1Controller.cs

@@ -40,22 +40,17 @@ namespace Teknik.Areas.API.V1.Controllers
                 {
                     if (model.file != null)
                     {
-                        long maxUploadSize = _config.UploadConfig.MaxUploadSize;
+                        long maxUploadSize = _config.UploadConfig.MaxUploadFileSize;
+                        long maxTotalSize = _config.UploadConfig.MaxUploadFileSize;
                         if (User.Identity.IsAuthenticated)
                         {
-                            maxUploadSize = _config.UploadConfig.MaxUploadSizeBasic;
-                            long maxTotalSize = _config.UploadConfig.MaxTotalSizeBasic;
-                            IdentityUserInfo userInfo = await IdentityHelper.GetIdentityUserInfo(_config, User.Identity.Name);
-                            if (userInfo.AccountType == AccountType.Premium)
-                            {
-                                maxUploadSize = _config.UploadConfig.MaxUploadSizePremium;
-                                maxTotalSize = _config.UploadConfig.MaxTotalSizePremium;
-                            }
-
                             // Check account total limits
                             var user = UserHelper.GetUser(_dbContext, User.Identity.Name);
                             if (user.UploadSettings.MaxUploadStorage != null)
                                 maxTotalSize = user.UploadSettings.MaxUploadStorage.Value;
+                            if (user.UploadSettings.MaxUploadFileSize != null)
+                                maxUploadSize = user.UploadSettings.MaxUploadFileSize.Value;
+
                             var userUploadSize = user.Uploads.Sum(u => u.ContentLength);
                             if (userUploadSize + model.file.Length > maxTotalSize)
                             {

Teknik/Areas/About/Controllers/AboutController.cs

@@ -6,12 +6,16 @@ using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Logging;
 using Teknik.Areas.About.ViewModels;
+using Teknik.Areas.Billing.ViewModels;
+using Teknik.Areas.Users.Utility;
 using Teknik.Attributes;
+using Teknik.BillingCore;
 using Teknik.Configuration;
 using Teknik.Controllers;
 using Teknik.Data;
 using Teknik.Filters;
 using Teknik.Logging;
+using Teknik.Utilities.Routing;
 
 namespace Teknik.Areas.About.Controllers
 {
@@ -27,8 +31,123 @@ namespace Teknik.Areas.About.Controllers
         {
             ViewBag.Title = "About";
             ViewBag.Description = "What is Teknik?";
+            var vm = new AboutViewModel();
 
-            return View(new AboutViewModel());
+            // Get Biling Service
+            var billingService = BillingFactory.GetBillingService(_config.BillingConfig);
+
+            var subVM = new SubscriptionsViewModel();
+
+            // Get current subscriptions
+            var curPrices = new Dictionary<string, List<string>>();
+
+            if (User.Identity.IsAuthenticated)
+            {
+                var user = UserHelper.GetUser(_dbContext, User.Identity.Name);
+                if (user.BillingCustomer != null)
+                {
+                    var currentSubs = billingService.GetSubscriptionList(user.BillingCustomer.CustomerId);
+                    foreach (var curSub in currentSubs)
+                    {
+                        foreach (var price in curSub.Prices)
+                        {
+                            if (!curPrices.ContainsKey(price.ProductId))
+                                curPrices[price.ProductId] = new List<string>();
+                            curPrices[price.ProductId].Add(price.Id);
+                        }
+                    }
+                }
+            }
+            bool hasUploadProduct = curPrices.ContainsKey(_config.BillingConfig.UploadProductId);
+            bool hasEmailProduct = curPrices.ContainsKey(_config.BillingConfig.EmailProductId);
+            var curUploadPrice = string.Empty;
+            if (curPrices.ContainsKey(_config.BillingConfig.UploadProductId))
+                curUploadPrice = curPrices[_config.BillingConfig.UploadProductId].FirstOrDefault();
+            var curEmailPrice = string.Empty;
+            if (curPrices.ContainsKey(_config.BillingConfig.EmailProductId))
+                curEmailPrice = curPrices[_config.BillingConfig.EmailProductId].FirstOrDefault();
+
+            // Show Free Subscription
+            subVM.UploadSubscriptions.Add(new SubscriptionViewModel()
+            {
+                CurrentSubMonthly = !hasUploadProduct && User.Identity.IsAuthenticated,
+                SubscribeText = "Free",
+                SubscribeUrlMonthly = Url.SubRouteUrl("about", "About.Index"),
+                BaseStorage = _config.UploadConfig.MaxStorage
+            });
+
+            // Get Upload Prices
+            var uploadProduct = billingService.GetProduct(_config.BillingConfig.UploadProductId);
+            if (uploadProduct != null)
+            {
+                bool handledFirst = false;
+                foreach (var priceGrp in uploadProduct.Prices.GroupBy(p => p.Storage).OrderBy(p => p.Key))
+                {
+                    // Get Monthly prices
+                    var priceMonth = priceGrp.FirstOrDefault(p => p.Interval == BillingCore.Models.Interval.Month);
+
+                    // Get Yearly prices
+                    var priceYear = priceGrp.FirstOrDefault(p => p.Interval == BillingCore.Models.Interval.Year);
+
+                    var curPrice = priceGrp.FirstOrDefault(p => p.Id == curUploadPrice);
+                    subVM.UploadSubscriptions.Add(new SubscriptionViewModel()
+                    {
+                        Recommended = !handledFirst,
+                        CurrentSubMonthly = curPrice?.Id == priceMonth?.Id,
+                        CurrentSubYearly = curPrice?.Id == priceYear?.Id,
+                        SubscribeUrlMonthly = Url.SubRouteUrl("billing",
+                                                              hasUploadProduct ? "Billing.EditSubscription" : "Billing.Checkout",
+                                                              new { priceId = priceMonth?.Id }),
+                        SubscribeUrlYearly = Url.SubRouteUrl("billing",
+                                                             hasUploadProduct ? "Billing.EditSubscription" : "Billing.Checkout",
+                                                             new { priceId = priceYear?.Id }),
+                        BaseStorage = priceMonth?.Storage,
+                        BasePriceMonthly = priceMonth?.Amount,
+                        BasePriceYearly = priceYear?.Amount
+                    });
+                    handledFirst = true;
+                }
+            }
+
+            // Get Email Prices
+            var emailProduct = billingService.GetProduct(_config.BillingConfig.EmailProductId);
+            if (emailProduct != null)
+            {
+                bool handledFirst = false;
+                foreach (var priceGrp in emailProduct.Prices.GroupBy(p => p.Storage).OrderBy(p => p.Key))
+                {
+                    // Get Monthly prices
+                    var priceMonth = priceGrp.FirstOrDefault(p => p.Interval == BillingCore.Models.Interval.Month);
+
+                    // Get Yearly prices
+                    var priceYear = priceGrp.FirstOrDefault(p => p.Interval == BillingCore.Models.Interval.Year);
+
+                    var curPrice = priceGrp.FirstOrDefault(p => p.Id == curEmailPrice);
+                    var emailSub = new SubscriptionViewModel()
+                    {
+                        Recommended = !handledFirst,
+                        CurrentSubMonthly = curPrice?.Id == priceMonth?.Id,
+                        CurrentSubYearly = curPrice?.Id == priceYear?.Id,
+                        SubscribeUrlMonthly = Url.SubRouteUrl("billing",
+                                                              hasEmailProduct ? "Billing.EditSubscription" : "Billing.Checkout",
+                                                              new { priceId = priceMonth?.Id }),
+                        SubscribeUrlYearly = Url.SubRouteUrl("billing",
+                                                             hasEmailProduct ? "Billing.EditSubscription" : "Billing.Checkout",
+                                                             new { priceId = priceYear?.Id }),
+                        BaseStorage = priceMonth?.Storage,
+                        BasePriceMonthly = priceMonth?.Amount,
+                        BasePriceYearly = priceYear?.Amount
+                    };
+                    if (!handledFirst)
+                        emailSub.PanelOffset = "3";
+                    subVM.EmailSubscriptions.Add(emailSub);
+                    handledFirst = true;
+                }
+            }
+
+            vm.Subscriptions = subVM;
+
+            return View(vm);
         }
     }
 }

Teknik/Areas/About/ViewModels/AboutViewModel.cs

@@ -2,11 +2,18 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Threading.Tasks;
+using Teknik.Areas.Billing.ViewModels;
 using Teknik.ViewModels;
 
 namespace Teknik.Areas.About.ViewModels
 {
     public class AboutViewModel : ViewModelBase
     {
+        public SubscriptionsViewModel Subscriptions { get; set; }
+
+        public AboutViewModel()
+        {
+            Subscriptions = new SubscriptionsViewModel();
+        }
     }
 }

Teknik/Areas/About/Views/About/Index.cshtml

@@ -1,8 +1,7 @@
 @model Teknik.Areas.About.ViewModels.AboutViewModel
 
 @{
-    string lifetimeAccount = "The account will not get deleted for inactivity as defined in the ToS";
-    string apiAccountAccess = "Passing user credentials allows linking for Uploads/Pastes/Shortened URLs and other account specific features";
+    string extraUsage = string.Empty;
 }
 
 <div class="container">
@@ -16,57 +15,35 @@
             <p>
                 You can view our complete activity and statistics by visiting the <a href="@Url.SubRouteUrl("stats", "Stats.Index")">statistics</a> page.
             </p>
+
             <br />
-            <hr>
+            <hr />
+
             <h2 class="text-center">What can you do with Teknik?</h2>
             <br />
+
             <div class="row">
                 <div class="col-sm-10 col-sm-offset-1">
                     <table class="table table-bordered">
                         <!-- Heading -->
                         <tr>
                             <th class="text-center"></th>
-                            <th class="text-center"><a href="@Url.SubRouteUrl("account", "User.GetPremium")">Premium Account</a></th>
-                            <th class="text-center"><a href="@Url.SubRouteUrl("account", "User.Register")">Basic Account</a></th>
-                            <th class="text-center">No Account</th>
+                            <th class="text-center"><a href="@Url.SubRouteUrl("account", "User.Register")">Free Account</a></th>
+                            <th class="text-center">Anonymous</th>
                         </tr>
-                        <!-- Prices -->
-                        <tr>
-                            <td class="text-left"></td>
-                            <td class="text-center">$@Config.UserConfig.PremiumAccountPrice @Config.UserConfig.PaymentType</td>
-                            <td class="text-center">Free</td>
-                            <td class="text-center">Free</td>
-                        </tr>
-                        <!-- Premium Features -->
-                        <tr>
-                            <td class="text-left"><span data-toggle="tooltip" data-placement="top" title="@lifetimeAccount">Lifetime Account <small>*</small></span></td>
-                            <td class="text-center"><i class="fa fa-check fa-2x text-success"></i></td>
-                            <td class="text-center"><i class="fa fa-times fa-2x text-danger"></i></td>
-                            <td class="text-center"><i class="fa fa-times fa-2x text-danger"></i></td>
-                        </tr>
-                        <tr>
-                            <td class="text-left">Email Account</td>
-                            <td class="text-center"><i class="fa fa-check fa-2x text-success"></i></td>
-                            <td class="text-center"><i class="fa fa-times fa-2x text-danger"></i></td>
-                            <td class="text-center"><i class="fa fa-times fa-2x text-danger"></i></td>
-                        </tr>
-                        <!-- Basic Features -->
                         <tr>
                             <td class="text-left">Git Repositories</td>
                             <td class="text-center">Unlimited Public &amp; Private Repos</td>
-                            <td class="text-center">Unlimited Public &amp; Private Repos</td>
                             <td class="text-center"><i class="fa fa-times fa-2x text-danger"></i></td>
                         </tr>
                         <tr>
                             <td class="text-left">Personal Blog</td>
                             <td class="text-center"><i class="fa fa-check fa-2x text-success"></i></td>
-                            <td class="text-center"><i class="fa fa-check fa-2x text-success"></i></td>
                             <td class="text-center"><i class="fa fa-times fa-2x text-danger"></i></td>
                         </tr>
                         <tr>
                             <td class="text-left">Vault and Paste Editing</td>
                             <td class="text-center"><i class="fa fa-check fa-2x text-success"></i></td>
-                            <td class="text-center"><i class="fa fa-check fa-2x text-success"></i></td>
                             <td class="text-center"><i class="fa fa-times fa-2x text-danger"></i></td>
                         </tr>
                         <tr>
@@ -81,101 +58,72 @@
                                 </ul>
                             </td>
                             <td class="text-center"><i class="fa fa-check fa-2x text-success"></i></td>
-                            <td class="text-center"><i class="fa fa-check fa-2x text-success"></i></td>
                             <td class="text-center"><i class="fa fa-times fa-2x text-danger"></i></td>
                         </tr>
+                        <tr>
+                            <td class="text-left"><span data-toggle="tooltip" data-placement="top">Service API</span></td>
+                            <td class="text-center"><i class="fa fa-check fa-2x text-success"></i></td>
+                            <td class="text-center"><i class="fa fa-check fa-2x text-danger"></i></td>
+                        </tr>
                         <!-- No Account Features -->
                         <tr>
                             <td class="text-left">Pastebin</td>
                             <td class="text-center"><i class="fa fa-check fa-2x text-success"></i></td>
                             <td class="text-center"><i class="fa fa-check fa-2x text-success"></i></td>
-                            <td class="text-center"><i class="fa fa-check fa-2x text-success"></i></td>
                         </tr>
                         <tr>
                             <td class="text-left">File Uploads</td>
                             <td class="text-center"><i class="fa fa-check fa-2x text-success"></i></td>
                             <td class="text-center"><i class="fa fa-check fa-2x text-success"></i></td>
-                            <td class="text-center"><i class="fa fa-check fa-2x text-success"></i></td>
                         </tr>
                         <tr>
                             <td class="text-left">Max Upload Filesize</td>
-                            <td class="text-center">@StringHelper.GetBytesReadable(Config.UploadConfig.MaxUploadSizePremium)</td>
-                            <td class="text-center">@StringHelper.GetBytesReadable(Config.UploadConfig.MaxUploadSizeBasic)</td>
-                            <td class="text-center">@StringHelper.GetBytesReadable(Config.UploadConfig.MaxUploadSize)</td>
+                            <td class="text-center">@StringHelper.GetBytesReadable(Config.UploadConfig.MaxUploadFileSize)</td>
+                            <td class="text-center">@StringHelper.GetBytesReadable(Config.UploadConfig.MaxUploadFileSize)</td>
                         </tr>
                         <tr>
                             <td class="text-left">Max Embedded Filesize</td>
-                            <td class="text-center">Unlimited</td>
-                            <td class="text-center">@StringHelper.GetBytesReadable(Config.UploadConfig.MaxDownloadSize)</td>
-                            <td class="text-center">@StringHelper.GetBytesReadable(Config.UploadConfig.MaxDownloadSize)</td>
+                            <td class="text-center">@StringHelper.GetBytesReadable(Config.UploadConfig.MaxDownloadFileSize)</td>
+                            <td class="text-center">@StringHelper.GetBytesReadable(Config.UploadConfig.MaxDownloadFileSize)</td>
                         </tr>
                         <tr>
                             <td class="text-left">Upload Storage</td>
-                            <td class="text-center">@StringHelper.GetBytesReadable(Config.UploadConfig.MaxTotalSizePremium)</td>
-                            <td class="text-center">@StringHelper.GetBytesReadable(Config.UploadConfig.MaxTotalSizeBasic)</td>
+                            <td class="text-center">@StringHelper.GetBytesReadable(Config.UploadConfig.MaxStorage)</td>
                             <td class="text-center">No Limit</td>
                         </tr>
                         <tr>
                             <td class="text-left">Upload Expiration</td>
                             <td class="text-center">Never</td>
-                            <td class="text-center">Never</td>
                             <td class="text-center">24 Hours</td>
                         </tr>
                         <tr>
                             <td class="text-left">Url Shortening</td>
                             <td class="text-center"><i class="fa fa-check fa-2x text-success"></i></td>
                             <td class="text-center"><i class="fa fa-check fa-2x text-success"></i></td>
-                            <td class="text-center"><i class="fa fa-check fa-2x text-success"></i></td>
                         </tr>
                         <tr>
                             <td class="text-left">Vault Creation</td>
                             <td class="text-center"><i class="fa fa-check fa-2x text-success"></i></td>
                             <td class="text-center"><i class="fa fa-check fa-2x text-success"></i></td>
-                            <td class="text-center"><i class="fa fa-check fa-2x text-success"></i></td>
                         </tr>
                         <tr>
                             <td class="text-left">Technical Podcasts</td>
                             <td class="text-center"><i class="fa fa-check fa-2x text-success"></i></td>
                             <td class="text-center"><i class="fa fa-check fa-2x text-success"></i></td>
-                            <td class="text-center"><i class="fa fa-check fa-2x text-success"></i></td>
-                        </tr>
-                        <tr>
-                            <td class="text-left">Mumble Server</td>
-                            <td class="text-center"><i class="fa fa-check fa-2x text-success"></i></td>
-                            <td class="text-center"><i class="fa fa-check fa-2x text-success"></i></td>
-                            <td class="text-center"><i class="fa fa-check fa-2x text-success"></i></td>
-                        </tr>
-                        <tr>
-                            <td class="text-left">IRC Server</td>
-                            <td class="text-center"><i class="fa fa-check fa-2x text-success"></i></td>
-                            <td class="text-center"><i class="fa fa-check fa-2x text-success"></i></td>
-                            <td class="text-center"><i class="fa fa-check fa-2x text-success"></i></td>
-                        </tr>
-                        <tr>
-                            <td class="text-left"><span data-toggle="tooltip" data-placement="top" title="@apiAccountAccess">Service API <small>**</small></span></td>
-                            <td class="text-center"><i class="fa fa-check fa-2x text-success"></i></td>
-                            <td class="text-center"><i class="fa fa-check fa-2x text-success"></i></td>
-                            <td class="text-center"><i class="fa fa-check fa-2x text-success"></i></td>
                         </tr>
                     </table>
                 </div>
             </div>
-            <div class="row">
-                <div class="col-sm-10 col-sm-offset-1">
-                    <p>
-                        <small>
-                            * @lifetimeAccount
             <br />
-                            ** @apiAccountAccess
-                        </small>
-                    </p>
-                </div>
-            </div>
+            
+            @await Html.PartialAsync("../../Areas/Billing/Views/Billing/ViewSubscriptions", Model.Subscriptions);
+
             <br />
             <hr>
+
             <h2 class="text-center">Want to help?</h2>
             <br />
-            <p>
+            <p class="text-center">
                 Teknik's source code can be located on our <a href="https://git.teknik.io/Teknikode/">Git Repository</a> as well as all our internal tools and projects.
                 <br />
                 <br />

Teknik/Areas/Billing/Controllers/BillingController.cs

@@ -1,11 +1,15 @@
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.Logging;
 using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Threading.Tasks;
+using Teknik.Areas.Billing.Models;
 using Teknik.Areas.Billing.ViewModels;
+using Teknik.Areas.Users.Models;
+using Teknik.Areas.Users.Utility;
 using Teknik.BillingCore;
 using Teknik.Configuration;
 using Teknik.Controllers;
@@ -15,6 +19,7 @@ using Teknik.Utilities.Routing;
 
 namespace Teknik.Areas.Billing.Controllers
 {
+    [Authorize]
     [Area("Billing")]
     public class BillingController : DefaultController
     {
@@ -32,39 +37,47 @@ namespace Teknik.Areas.Billing.Controllers
             var subVM = new SubscriptionsViewModel();
 
             // Get Biling Service
-            var billingService = BillingFactory.GetStorageService(_config.BillingConfig);
+            var billingService = BillingFactory.GetBillingService(_config.BillingConfig);
 
             // Get current subscriptions
-            string curSubId = null;
-            var curSubs = new Dictionary<string, List<string>>();
+            var curPrices = new Dictionary<string, List<string>>();
 
             if (User.Identity.IsAuthenticated)
             {
-                var currentSubs = billingService.GetSubscriptionList(User.Identity.Name);
+                var user = UserHelper.GetUser(_dbContext, User.Identity.Name);
+                if (user.BillingCustomer != null)
+                {
+                    var currentSubs = billingService.GetSubscriptionList(user.BillingCustomer.CustomerId);
                     foreach (var curSub in currentSubs)
                     {
                         foreach (var price in curSub.Prices)
                         {
-                        if (!curSubs.ContainsKey(price.ProductId))
-                            curSubs[price.ProductId] = new List<string>();
-                        curSubs[price.ProductId].Add(price.Id);
+                            if (!curPrices.ContainsKey(price.ProductId))
+                                curPrices[price.ProductId] = new List<string>();
+                            curPrices[price.ProductId].Add(price.Id);
                         }
                     }
                 }
+            }
+            bool hasUploadProduct = curPrices.ContainsKey(_config.BillingConfig.UploadProductId);
+            bool hasEmailProduct = curPrices.ContainsKey(_config.BillingConfig.EmailProductId);
+            var curUploadPrice = string.Empty;
+            if (curPrices.ContainsKey(_config.BillingConfig.UploadProductId))
+                curUploadPrice = curPrices[_config.BillingConfig.UploadProductId].FirstOrDefault();
+            var curEmailPrice = string.Empty;
+            if (curPrices.ContainsKey(_config.BillingConfig.EmailProductId))
+                curEmailPrice = curPrices[_config.BillingConfig.EmailProductId].FirstOrDefault();
 
             // Show Free Subscription
             subVM.UploadSubscriptions.Add(new SubscriptionViewModel()
             {
-                CurrentPlan = curSubId == null,
+                CurrentSubMonthly = !hasUploadProduct && User.Identity.IsAuthenticated,
                 SubscribeText = "Free",
-                SubscribeUrlMonthly = Url.SubRouteUrl("account", "User.Register"),
-                BaseStorage = _config.UploadConfig.MaxUploadSizeBasic
+                SubscribeUrlMonthly = Url.SubRouteUrl("about", "About.Index"),
+                BaseStorage = _config.UploadConfig.MaxStorage
             });
 
             // Get Upload Prices
-            var curUploadSubs = new List<string>();
-            if (curSubs.ContainsKey(_config.BillingConfig.UploadProductId))
-                curUploadSubs = curSubs[_config.BillingConfig.UploadProductId];
             var uploadProduct = billingService.GetProduct(_config.BillingConfig.UploadProductId);
             if (uploadProduct != null)
             {
@@ -77,13 +90,18 @@ namespace Teknik.Areas.Billing.Controllers
                     // Get Yearly prices
                     var priceYear = priceGrp.FirstOrDefault(p => p.Interval == BillingCore.Models.Interval.Year);
 
-                    var isCurrent = curUploadSubs.Exists(s => priceGrp.FirstOrDefault(p => p.ProductId == s) != null);
+                    var curPrice = priceGrp.FirstOrDefault(p => p.Id == curUploadPrice);
                     subVM.UploadSubscriptions.Add(new SubscriptionViewModel()
                     {
                         Recommended = !handledFirst,
-                        CurrentPlan = isCurrent,
-                        SubscribeUrlMonthly = Url.SubRouteUrl("billing", "Billing.Subscribe", new { priceId = priceMonth?.Id }),
-                        SubscribeUrlYearly = Url.SubRouteUrl("billing", "Billing.Subscribe", new { priceId = priceYear?.Id }),
+                        CurrentSubMonthly = curPrice?.Id == priceMonth?.Id,
+                        CurrentSubYearly = curPrice?.Id == priceYear?.Id,
+                        SubscribeUrlMonthly = Url.SubRouteUrl("billing", 
+                                                              hasUploadProduct ? "Billing.EditSubscription" : "Billing.Checkout", 
+                                                              new { priceId = priceMonth?.Id }),
+                        SubscribeUrlYearly = Url.SubRouteUrl("billing", 
+                                                             hasUploadProduct ? "Billing.EditSubscription" : "Billing.Checkout", 
+                                                             new { priceId = priceYear?.Id }),
                         BaseStorage = priceMonth?.Storage,
                         BasePriceMonthly = priceMonth?.Amount,
                         BasePriceYearly = priceYear?.Amount
@@ -93,9 +111,6 @@ namespace Teknik.Areas.Billing.Controllers
             }
 
             // Get Email Prices
-            var curEmailSubs = new List<string>();
-            if (curSubs.ContainsKey(_config.BillingConfig.EmailProductId))
-                curEmailSubs = curSubs[_config.BillingConfig.EmailProductId];
             var emailProduct = billingService.GetProduct(_config.BillingConfig.EmailProductId);
             if (emailProduct != null)
             {
@@ -108,13 +123,18 @@ namespace Teknik.Areas.Billing.Controllers
                     // Get Yearly prices
                     var priceYear = priceGrp.FirstOrDefault(p => p.Interval == BillingCore.Models.Interval.Year);
 
-                    var isCurrent = curUploadSubs.Exists(s => priceGrp.FirstOrDefault(p => p.ProductId == s) != null);
+                    var curPrice = priceGrp.FirstOrDefault(p => p.Id == curEmailPrice);
                     var emailSub = new SubscriptionViewModel()
                     {
                         Recommended = !handledFirst,
-                        CurrentPlan = isCurrent,
-                        SubscribeUrlMonthly = Url.SubRouteUrl("billing", "Billing.Subscribe", new { priceId = priceMonth?.Id }),
-                        SubscribeUrlYearly = Url.SubRouteUrl("billing", "Billing.Subscribe", new { priceId = priceYear?.Id }),
+                        CurrentSubMonthly = curPrice?.Id == priceMonth?.Id,
+                        CurrentSubYearly = curPrice?.Id == priceYear?.Id,
+                        SubscribeUrlMonthly = Url.SubRouteUrl("billing",
+                                                              hasEmailProduct ? "Billing.EditSubscription" : "Billing.Checkout",
+                                                              new { priceId = priceMonth?.Id }),
+                        SubscribeUrlYearly = Url.SubRouteUrl("billing",
+                                                             hasEmailProduct ? "Billing.EditSubscription" : "Billing.Checkout",
+                                                             new { priceId = priceYear?.Id }),
                         BaseStorage = priceMonth?.Storage,
                         BasePriceMonthly = priceMonth?.Amount,
                         BasePriceYearly = priceYear?.Amount
@@ -136,13 +156,152 @@ namespace Teknik.Areas.Billing.Controllers
         }
 
         [AllowAnonymous]
-        public IActionResult Subscribe(string priceId)
+        public IActionResult Subscribe(string priceId, string subscriptionId)
         {
             // Get Subscription Info
-            var billingService = BillingFactory.GetStorageService(_config.BillingConfig);
-            var price = billingService.GetPrice(priceId);
+            var billingService = BillingFactory.GetBillingService(_config.BillingConfig);
 
-            return View(new SubscriptionViewModel());
+            var vm = new SubscribeViewModel();
+            vm.Price = billingService.GetPrice(priceId);
+            vm.Subscription = billingService.GetSubscription(subscriptionId);
+
+            return View(vm);
+        }
+
+        public IActionResult Checkout(string priceId)
+        {
+            // Get Subscription Info
+            var billingService = BillingFactory.GetBillingService(_config.BillingConfig);
+
+            var price = billingService.GetPrice(priceId);
+            if (price == null)
+                throw new ArgumentException("Invalid Price ID", "priceId");
+
+            User user = UserHelper.GetUser(_dbContext, User.Identity.Name);
+            if (user == null)
+                throw new UnauthorizedAccessException();
+
+            if (user.BillingCustomer == null)
+            {
+                var custId = billingService.CreateCustomer(user.Username, null);
+                var customer = new Customer()
+                {
+                    CustomerId = custId,
+                    User = user
+                };
+                _dbContext.Customers.Add(customer);
+                user.BillingCustomer = customer;
+                _dbContext.Entry(user).State = EntityState.Modified;
+                _dbContext.SaveChanges();
+            }
+
+            var session = billingService.CreateCheckoutSession(user.BillingCustomer.CustomerId,
+                                                               priceId, 
+                                                               Url.SubRouteUrl("billing", "Billing.CheckoutComplete", new { productId = price.ProductId }), 
+                                                               Url.SubRouteUrl("billing", "Billing.Subscriptions"));
+            return Redirect(session.Url);
+        }
+
+        public IActionResult CheckoutComplete(string productId, string session_id)
+        {
+            // Get Checkout Info
+            var billingService = BillingFactory.GetBillingService(_config.BillingConfig);
+            var checkoutSession = billingService.GetCheckoutSession(session_id);
+            if (checkoutSession != null)
+            {
+                var subscription = billingService.GetSubscription(checkoutSession.SubscriptionId);
+                if (subscription != null)
+                {
+                    foreach (var price in subscription.Prices)
+                    {
+                        if (price.ProductId == productId)
+                        {
+                            return Redirect(Url.SubRouteUrl("billing", "Billing.SubscriptionSuccess", new { priceId = price.Id }));
+                        }
+                    }
+                }
+            }
+
+            return Redirect(Url.SubRouteUrl("billing", "Billing.ViewSubscriptions"));
+        }
+
+        public IActionResult EditSubscription(string priceId)
+        {
+            // Get Subscription Info
+            var billingService = BillingFactory.GetBillingService(_config.BillingConfig);
+
+            var price = billingService.GetPrice(priceId);
+            if (price == null)
+                throw new ArgumentException("Invalid Price ID", "priceId");
+
+            User user = UserHelper.GetUser(_dbContext, User.Identity.Name);
+            if (user == null)
+                throw new UnauthorizedAccessException();
+            
+            if (user.BillingCustomer == null)
+            {
+                return Checkout(priceId);
+            }
+            else
+            {
+                var currentSubs = billingService.GetSubscriptionList(user.BillingCustomer.CustomerId);
+                foreach (var curSub in currentSubs)
+                {
+                    if (curSub.Prices.Exists(p => p.ProductId == price.ProductId))
+                    {
+                        billingService.EditSubscriptionPrice(curSub.Id, price.Id);
+                        return Redirect(Url.SubRouteUrl("billing", "Billing.SubscriptionSuccess", new { priceId = price.Id }));
+                    }
+                }
+            }
+
+            return Redirect(Url.SubRouteUrl("billing", "Billing.ViewSubscriptions"));
+        }
+
+        public IActionResult CancelSubscription(string subscriptionId, string productId)
+        {
+            // Get Subscription Info
+            var billingService = BillingFactory.GetBillingService(_config.BillingConfig);
+
+            var subscription = billingService.GetSubscription(subscriptionId);
+            if (subscription == null)
+                throw new ArgumentException("Invalid Subscription Id", "subscriptionId");
+
+            if (!subscription.Prices.Exists(p => p.ProductId == productId))
+                throw new ArgumentException("Subscription does not relate to product", "productId");
+
+            var product = billingService.GetProduct(productId);
+            if (product == null)
+                throw new ArgumentException("Product does not exist", "productId");
+
+            var result = billingService.CancelSubscription(subscriptionId);
+
+            var vm = new CancelSubscriptionViewModel()
+            {
+                ProductName = product.Name
+            };
+
+            return View(vm);
+        }
+
+        public IActionResult SubscriptionSuccess(string priceId)
+        {
+            var vm = new SubscriptionSuccessViewModel();
+
+            // Get Subscription Info
+            var billingService = BillingFactory.GetBillingService(_config.BillingConfig);
+
+            var price = billingService.GetPrice(priceId);
+            if (price == null)
+                throw new ArgumentException("Invalid Price ID", "priceId");
+
+            var product = billingService.GetProduct(price.ProductId);
+            vm.ProductName = product.Name;
+            vm.Price = price.Amount;
+            vm.Interval = price.Interval.ToString();
+            vm.Storage = price.Storage;
+
+            return View(vm);
         }
     }
 }

Teknik/Areas/Billing/Models/Customer.cs

@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Teknik.Areas.Users.Models;
+using Teknik.Attributes;
+
+namespace Teknik.Areas.Billing.Models
+{
+    public class Customer
+    {
+        [CaseSensitive]
+        public string CustomerId { get; set; }
+
+        public int UserId { get; set; }
+
+        public virtual User User { get; set; }
+    }
+}

Teknik/Areas/Billing/ViewModels/CancelSubscriptionViewModel.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Teknik.ViewModels;
+
+namespace Teknik.Areas.Billing.ViewModels
+{
+    public class CancelSubscriptionViewModel : ViewModelBase
+    {
+        public string ProductName { get; set; }
+    }
+}

Teknik/Areas/Billing/ViewModels/PriceViewModel.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Teknik.ViewModels;
+
+namespace Teknik.Areas.Billing.ViewModels
+{
+    public class PriceViewModel : ViewModelBase
+    {
+        public string ProductName { get; set; }
+
+        public string Name { get; set; }
+
+        public long Storage { get; set; }
+    }
+}

Teknik/Areas/Billing/ViewModels/SubscribeViewModel.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Teknik.BillingCore.Models;
+using Teknik.ViewModels;
+
+namespace Teknik.Areas.Billing.ViewModels
+{
+    public class SubscribeViewModel : ViewModelBase
+    {
+        public Subscription Subscription { get; set; }
+        public Price Price { get; set; }
+    }
+}

Teknik/Areas/Billing/ViewModels/SubscriptionSuccessViewModel.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Teknik.BillingCore.Models;
+using Teknik.ViewModels;
+
+namespace Teknik.Areas.Billing.ViewModels
+{
+    public class SubscriptionSuccessViewModel : ViewModelBase
+    {
+        public string ProductName { get; set; }
+
+        public decimal? Price { get; set; }
+
+        public string Interval { get; set; }
+
+        public long Storage { get; set; }
+    }
+}

Teknik/Areas/Billing/ViewModels/SubscriptionViewModel.cs

@@ -9,7 +9,8 @@ namespace Teknik.Areas.Billing.ViewModels
     public class SubscriptionViewModel : ViewModelBase
     {
         public bool Recommended { get; set; }
-        public bool CurrentPlan { get; set; }
+        public bool CurrentSubMonthly { get; set; }
+        public bool CurrentSubYearly { get; set; }
         public string SubscriptionId { get; set; }
         public decimal? BasePriceMonthly { get; set; }
         public decimal? BasePriceYearly { get; set; }
@@ -28,7 +29,8 @@ namespace Teknik.Areas.Billing.ViewModels
         public SubscriptionViewModel()
         {
             Recommended = false;
-            CurrentPlan = false;
+            CurrentSubMonthly = false;
+            CurrentSubYearly = false;
             OverageAllowed = false;
         }
     }

Teknik/Areas/Billing/Views/Billing/CancelSubscription.cshtml

@@ -0,0 +1,21 @@
+@model Teknik.Areas.Billing.ViewModels.CancelSubscriptionViewModel
+
+<div class="container">
+    @if (Model.Error)
+    {
+        <div class="row">
+            <div class="col-sm-12 text-center">
+                <h2>@Model.ErrorMessage</h2>
+            </div>
+        </div>
+    }
+    else
+    {
+        <div class="row">
+            <div class="col-md-12 text-center">
+                <h2>You have successfully canceled your subscription to <strong>@Model.ProductName</strong></h2>
+                <p><a href="@Url.SubRouteUrl("account", "User.BillingSettings")">View Active Subscriptions</a></p>
+            </div>
+        </div>
+    }
+</div>

Teknik/Areas/Billing/Views/Billing/Subscribe.cshtml

@@ -0,0 +1,45 @@
+@model Teknik.Areas.Billing.ViewModels.SubscribeViewModel
+
+@{
+    var price = Model.Price.Amount != null ? $"${Model.Price.Amount:0.00}" : "Free";
+    var interval = Model.Price.Interval.ToString();
+    var priceText = Model.Price.Amount != null ? $"{price}/{interval}" : "Free";
+    var storageText = $"{StringHelper.GetBytesReadable(Model.Price.Storage)}";
+
+    if (Model.Subscription != null)
+    {
+    }
+}
+
+<div class="container">
+    <div class="row">
+        <div class="col-sm-12">
+            <div id="subscribeStatus">
+                @if (Model.Error)
+                {
+                    <div class="alert alert-danger alert-dismissable"><button type="button" class="close" data-dismiss="alert" aria-hidden="true">&times;</button>@Model.ErrorMessage</div>
+                }
+            </div>
+        </div>
+    </div>
+    <div class="row">
+        <div class="col-sm-5 col-sm-offset-1 text-left">@storageText</div>
+        <div class="col-sm-5 text-right text-primary">@priceText</div>
+    </div>
+    <div class="row">
+        <div class="col-sm-5 col-sm-offset-6 text-right text-muted">no tax</div>
+    </div>
+    <div class="row">
+        <div class="col-sm-10 col-sm-offset-1">
+            <p><strong>You'll be charged @price automatically every @interval until you cancel.  Your price may change as described in the <a href="@Url.SubRouteUrl("tos", "TOS.Index")" target="_blank">Teknik Terms of Service</a>.</strong></p>
+            <p>Cancel anytime in your <a href="@Url.SubRouteUrl("account", "Account.Subscriptions")" target="_blank">Subscriptions Settings</a>.</p>
+            <p></p>
+        </div>
+    </div>
+    <div class="row">
+        <div class="col-sm-12">
+            <button class="btn btn-default" id="subscribeCancel" type="button" name="Subscription.Cancel">Cancel</button>
+            <a href="@Url.SubRouteUrl("billing", "Billing.Checkout", new { priceId = Model.Price.Id, subscriptionId = Model.Subscription?.Id })" class="btn btn-primary" role="button">Subscribe</a>
+        </div>
+    </div>
+</div>

Teknik/Areas/Billing/Views/Billing/SubscriptionSuccess.cshtml

@@ -0,0 +1,21 @@
+@model Teknik.Areas.Billing.ViewModels.SubscriptionSuccessViewModel
+
+<div class="container">
+    @if (Model.Error)
+    {
+        <div class="row">
+            <div class="col-sm-12 text-center">
+                <h2>@Model.ErrorMessage</h2>
+            </div>
+        </div>
+    }
+    else
+    {
+    <div class="row">
+        <div class="col-md-12 text-center">
+            <h2>Thank you for subscribing to @Model.ProductName: <strong>@(StringHelper.GetBytesReadable(Model.Storage))</strong> for <strong>@($"${Model.Price:0.00} / {Model.Interval}")</strong></h2>
+            <p><a href="@Url.SubRouteUrl("account", "User.BillingSettings")">View Active Subscriptions</a></p>
+        </div>
+    </div>
+    }
+</div>

Teknik/Areas/Billing/Views/Billing/ViewSubscription.cshtml

@@ -13,10 +13,10 @@
 
     var btnClass = "";
     var subscribeText = Model.BasePriceMonthly.HasValue ? $"${Model.BasePriceMonthly:0.00} / month" : "Free";
-    if (Model.CurrentPlan)
+    if (Model.CurrentSubMonthly)
     {
         btnClass = "disabled";
-        subscribeText = "Current plan";
+        subscribeText = "Current Plan";
     }
 
     var panelColor = "default";
@@ -53,12 +53,19 @@
                 <p><a href="@Model.SubscribeUrlMonthly" class="btn btn-@buttonColor center-block @btnClass" role="button">@subscribeText</a></p>
                 @if (Model.BasePriceYearly != null)
                 {
+                    var yearBtnClass = "";
+                    var yearSubscribeText = $"${Model.BasePriceYearly:0.00} / year";
+                    if (Model.CurrentSubYearly)
+                    {
+                        yearBtnClass = "disabled";
+                        yearSubscribeText = "Current Plan";
+                    }
                     var discount = 1 - (Model.BasePriceYearly.Value / (Model.BasePriceMonthly.Value * 12));
                     <p>
                         Or prepay annually<br />
                         (save @Math.Round(100 * discount)%):
                     </p>
-                    <p><a href="@Model.SubscribeUrlYearly" class="btn btn-default btn-no-border btn-text-primary center-block" role="button">@($"${Model.BasePriceYearly:0.00}") / year</a></p>
+                    <p><a href="@Model.SubscribeUrlYearly" class="btn btn-default btn-no-border btn-text-primary center-block @yearBtnClass" role="button">@yearSubscribeText</a></p>
                 }
             </div>
         </div>

Teknik/Areas/Billing/Views/Billing/ViewSubscriptions.cshtml

@@ -8,10 +8,7 @@
     @if (Model.UploadSubscriptions.Any())
     {
         <h2 class="text-center">Upload Storage Subscriptions</h2>
-        <p class="text-muted text-center">
-            By subscribing to a Teknik Service plan, you agree to the <a href="@Url.SubRouteUrl("tos", "TOS.Index")">Teknik Terms of Service</a>.<br />
-            <strong>Note:</strong> The <a href="@Url.SubRouteUrl("privacy", "Privacy.Index")">Teknik Privacy Policy</a> describes how data is handled in this service.
-        </p>
+        <p class="text-center">Want some extra storage?  Upgrade with one of the storage subscriptions!</p>
         <br />
         <div class="row">
             @foreach (var subVM in Model.UploadSubscriptions)
@@ -22,24 +19,13 @@
                 @await Html.PartialAsync("../../Areas/Billing/Views/Billing/ViewSubscription", subVM)
             }
         </div>
-        @if (!string.IsNullOrEmpty(extraUsage))
-        {
-            <div class="row">
-                <div class="col-sm-12">
-                    <p>
-                        <small>
-                            * @extraUsage
-                        </small>
-                    </p>
-                </div>
-            </div>
-        }
     }
 
     @if (Model.EmailSubscriptions.Any())
     {
         <br />
         <h2 class="text-center">Email Subscriptions</h2>
+        <p class="text-center">Get a personal email address, complete with web mail client.</p>
         <br />
         <div class="row">
             @foreach (var subVM in Model.EmailSubscriptions)
@@ -51,4 +37,25 @@
             }
         </div>
     }
+
+        <br />
+            
+        <div class="row">
+            <div class="col-sm-12">
+                <p class="text-muted text-center">
+                    By subscribing to a Teknik Service plan, you agree to the <a href="@Url.SubRouteUrl("tos", "TOS.Index")" target="_blank">Teknik Terms of Service</a>.<br />
+                    <strong>Note:</strong> The <a href="@Url.SubRouteUrl("privacy", "Privacy.Index")" target="_blank">Teknik Privacy Policy</a> describes how data is handled in this service.
+                </p>
+                @if (!string.IsNullOrEmpty(extraUsage))
+                {
+                    <p>
+                        <small>
+                            * @extraUsage
+                        </small>
+                    </p>
+                }
+            </div>
+        </div>
 </div>
+
+<bundle src="js/billing.min.js" append-version="true"></bundle>

Teknik/Areas/FAQ/Views/FAQ/Index.cshtml

@@ -119,7 +119,7 @@
                     </div>
                     <div id="collapse200" class="panel-collapse collapse" role="tabpanel">
                         <div class="panel-body">
-                            The max file size for everyone is <strong>@StringHelper.GetBytesReadable(Config.UploadConfig.MaxUploadSize)</strong>, basic accounts are <strong>@StringHelper.GetBytesReadable(Config.UploadConfig.MaxUploadSizeBasic)</strong>, and Premium accounts are <strong>@StringHelper.GetBytesReadable(Config.UploadConfig.MaxUploadSizePremium)</strong>.
+                            The max file size for everyone is <strong>@StringHelper.GetBytesReadable(Config.UploadConfig.MaxUploadFileSize)</strong>.
                         </div>
                     </div>
                 </div>

Teknik/Areas/Help/Controllers/HelpController.cs

@@ -118,18 +118,14 @@ namespace Teknik.Areas.Help.Controllers
             ViewBag.Title = "Upload Service Help";
             UploadHelpViewModel model = new UploadHelpViewModel();
 
-            model.MaxUploadSize = _config.UploadConfig.MaxUploadSize;
+            model.MaxUploadSize = _config.UploadConfig.MaxUploadFileSize;
             if (User.Identity.IsAuthenticated)
             {
                 User user = UserHelper.GetUser(_dbContext, User.Identity.Name);
                 if (user != null)
                 {
-                    model.MaxUploadSize = _config.UploadConfig.MaxUploadSizeBasic;
-                    IdentityUserInfo userInfo = await IdentityHelper.GetIdentityUserInfo(_config, User.Identity.Name);
-                    if (userInfo.AccountType == AccountType.Premium)
-                    {
-                        model.MaxUploadSize = _config.UploadConfig.MaxUploadSizePremium;
-                    }
+                    if (user.UploadSettings.MaxUploadFileSize != null)
+                        model.MaxUploadSize = user.UploadSettings.MaxUploadFileSize.Value;
                 }
             }
             return View("~/Areas/Help/Views/Help/Upload.cshtml", model);

Teknik/Areas/Home/Views/Home/Index.cshtml

@@ -131,7 +131,7 @@
                     </div>
                     <br />
                     <hr />
-                    <h2 class="text-center"><a href="@Url.SubRouteUrl("account", "User.GetPremium")">Upgrade to Premium</a> for even more features!</h2>
+                    <h2 class="text-center"><a href="@Url.SubRouteUrl("billing", "Billing.Subscriptions")">Subscribe</a> for even more features!</h2>
                     <div class="row">
                         <a conditional href="@Url.SubRouteUrl("help", "Help.Mail")" asp-condition="@User.Identity.IsAuthenticated">
                             <div class="col-md-3 text-center text-primary">
@@ -154,18 +154,18 @@
                         <a conditional href="@Url.SubRouteUrl("upload", "Upload.Index")" asp-condition="@User.Identity.IsAuthenticated">
                             <div class="col-md-3 text-center text-primary">
                                 <br />
-                                <i class="fa fa-film fa-5x"></i>
+                                <i class="fa fa-hdd-o fa-5x"></i>
                                 <div class="caption">
-                                    <h3>No Embed Limits</h3>
+                                    <h3>Additional Storage</h3>
                                 </div>
                             </div>
                         </a>
-                        <a conditional href="@Url.SubRouteUrl("about", "About.Index")" asp-condition="@User.Identity.IsAuthenticated">
+                        <a conditional href="@Url.SubRouteUrl("upload", "Upload.Index")" asp-condition="@User.Identity.IsAuthenticated">
                             <div class="col-md-3 text-center text-primary">
                                 <br />
-                                <i class="fa fa-heart fa-5x"></i>
+                                <i class="fa fa-film fa-5x"></i>
                                 <div class="caption">
-                                    <h3>Lifetime Account</h3>
+                                    <h3>No Embed Limits</h3>
                                 </div>
                             </div>
                         </a>

Teknik/Areas/Paste/Controllers/PasteController.cs

@@ -93,7 +93,7 @@ namespace Teknik.Areas.Paste.Controllers
                     string hash = string.Empty;
                     if (!string.IsNullOrEmpty(password))
                     {
-                        hash = PasteHelper.HashPassword(paste.Key, password);
+                        hash = Crypto.HashPassword(paste.Key, password);
                         keyBytes = AesCounterManaged.CreateKey(password, ivBytes, paste.KeySize);
                     }
                     if (string.IsNullOrEmpty(password) || hash != paste.HashedPassword)
@@ -242,7 +242,7 @@ namespace Teknik.Areas.Paste.Controllers
                     string hash = string.Empty;
                     if (!string.IsNullOrEmpty(password))
                     {
-                        hash = PasteHelper.HashPassword(paste.Key, password);
+                        hash = Crypto.HashPassword(paste.Key, password);
                         keyBytes = AesCounterManaged.CreateKey(password, ivBytes, paste.KeySize);
                     }
                     if (string.IsNullOrEmpty(password) || hash != paste.HashedPassword)
@@ -307,7 +307,7 @@ namespace Teknik.Areas.Paste.Controllers
                             string hash = string.Empty;
                             if (!string.IsNullOrEmpty(password))
                             {
-                                hash = PasteHelper.HashPassword(paste.Key, password);
+                                hash = Crypto.HashPassword(paste.Key, password);
                             }
                             if (string.IsNullOrEmpty(password) || hash != paste.HashedPassword)
                             {
@@ -333,8 +333,8 @@ namespace Teknik.Areas.Paste.Controllers
                         // Generate a unique file name that does not currently exist
                         string fileName = storageService.GetUniqueFileName();
 
-                        string key = PasteHelper.GenerateKey(_config.PasteConfig.KeySize);
-                        string iv = PasteHelper.GenerateIV(_config.PasteConfig.BlockSize);
+                        string key = Crypto.GenerateKey(_config.PasteConfig.KeySize);
+                        string iv = Crypto.GenerateIV(_config.PasteConfig.BlockSize);
 
                         PasteHelper.EncryptContents(storageService, model.Content, fileName, password, key, iv, _config.PasteConfig.KeySize, _config.PasteConfig.ChunkSize);
 
@@ -344,7 +344,7 @@ namespace Teknik.Areas.Paste.Controllers
                         paste.BlockSize = _config.PasteConfig.BlockSize;
 
                         if (!string.IsNullOrEmpty(password))
-                            paste.HashedPassword = PasteHelper.HashPassword(paste.Key, password);
+                            paste.HashedPassword = Crypto.HashPassword(paste.Key, password);
                         paste.FileName = fileName;
                         paste.Title = model.Title;
                         paste.Syntax = model.Syntax;

Teknik/Areas/Paste/PasteHelper.cs

@@ -59,15 +59,14 @@ namespace Teknik.Areas.Paste
                     break;
             }
 
-            string key = GenerateKey(config.PasteConfig.KeySize);
-            string iv = GenerateIV(config.PasteConfig.BlockSize);
+            string key = Crypto.GenerateKey(config.PasteConfig.KeySize);
+            string iv = Crypto.GenerateIV(config.PasteConfig.BlockSize);
 
             if (!string.IsNullOrEmpty(password))
             {
-                paste.HashedPassword = HashPassword(key, password);
+                paste.HashedPassword = Crypto.HashPassword(key, password);
             }
 
-
             // Generate a unique file name that does not currently exist
             var storageService = StorageServiceFactory.GetStorageService(config.PasteConfig.StorageConfig);
             var fileName = storageService.GetUniqueFileName();
@@ -102,21 +101,6 @@ namespace Teknik.Areas.Paste
             return false;
         }
 
-        public static string GenerateKey(int keySize)
-        {
-            return StringHelper.RandomString(keySize / 8);
-        }
-
-        public static string GenerateIV(int ivSize)
-        {
-            return StringHelper.RandomString(ivSize / 16);
-        }
-
-        public static string HashPassword(string key, string password)
-        {
-            return SHA384.Hash(key, password).ToHex();
-        }
-
         public static void EncryptContents(IStorageService storageService, string content, string fileName, string password, string key, string iv, int keySize, int chunkSize)
         {
             byte[] ivBytes = Encoding.Unicode.GetBytes(iv);

Teknik/Areas/Upload/Controllers/UploadController.cs

@@ -45,7 +45,7 @@ namespace Teknik.Areas.Upload.Controllers
             model.Encrypt = false;
             model.ExpirationLength = 1;
             model.ExpirationUnit = ExpirationUnit.Days;
-            model.MaxUploadSize = _config.UploadConfig.MaxUploadSize;
+            model.MaxUploadSize = _config.UploadConfig.MaxUploadFileSize;
             if (User.Identity.IsAuthenticated)
             {
                 User user = UserHelper.GetUser(_dbContext, User.Identity.Name);
@@ -58,16 +58,12 @@ namespace Teknik.Areas.Upload.Controllers
 
                     model.CurrentTotalSize = user.Uploads.Sum(u => u.ContentLength);
 
-                    model.MaxUploadSize = _config.UploadConfig.MaxUploadSizeBasic;
-                    model.MaxTotalSize = _config.UploadConfig.MaxTotalSizeBasic;
-                    IdentityUserInfo userInfo = await IdentityHelper.GetIdentityUserInfo(_config, User.Identity.Name);
-                    if (userInfo.AccountType == AccountType.Premium)
-                    {
-                        model.MaxUploadSize = _config.UploadConfig.MaxUploadSizePremium;
-                        model.MaxTotalSize = _config.UploadConfig.MaxTotalSizePremium;
-                    }
+                    model.MaxUploadSize = _config.UploadConfig.MaxUploadFileSize;
+                    model.MaxTotalSize = _config.UploadConfig.MaxStorage;
                     if (user.UploadSettings.MaxUploadStorage != null)
                         model.MaxTotalSize = user.UploadSettings.MaxUploadStorage.Value;
+                    if (user.UploadSettings.MaxUploadFileSize != null)
+                        model.MaxUploadSize = user.UploadSettings.MaxUploadFileSize.Value;
 
                     if (model.CurrentTotalSize >= model.MaxTotalSize)
                     {
@@ -88,22 +84,17 @@ namespace Teknik.Areas.Upload.Controllers
             {
                 if (_config.UploadConfig.UploadEnabled)
                 {
-                    long maxUploadSize = _config.UploadConfig.MaxUploadSize;
+                    long maxUploadSize = _config.UploadConfig.MaxUploadFileSize;
+                    long maxTotalSize = _config.UploadConfig.MaxStorage;
                     if (User.Identity.IsAuthenticated)
                     {
-                        maxUploadSize = _config.UploadConfig.MaxUploadSizeBasic;
-                        long maxTotalSize = _config.UploadConfig.MaxTotalSizeBasic;
-                        IdentityUserInfo userInfo = await IdentityHelper.GetIdentityUserInfo(_config, User.Identity.Name);
-                        if (userInfo.AccountType == AccountType.Premium)
-                        {
-                            maxUploadSize = _config.UploadConfig.MaxUploadSizePremium;
-                            maxTotalSize = _config.UploadConfig.MaxTotalSizePremium;
-                        }
-
                         // Check account total limits
                         var user = UserHelper.GetUser(_dbContext, User.Identity.Name);
                         if (user.UploadSettings.MaxUploadStorage != null)
                             maxTotalSize = user.UploadSettings.MaxUploadStorage.Value;
+                        if (user.UploadSettings.MaxUploadFileSize != null)
+                            maxUploadSize = user.UploadSettings.MaxUploadFileSize.Value;
+
                         var userUploadSize = user.Uploads.Sum(u => u.ContentLength);
                         if (userUploadSize + uploadFile.file.Length > maxTotalSize)
                         {
@@ -232,7 +223,6 @@ namespace Teknik.Areas.Upload.Controllers
                 string iv = string.Empty;
                 string contentType = string.Empty;
                 long contentLength = 0;
-                bool premiumAccount = false;
                 DateTime dateUploaded = new DateTime();
 
                 Models.Upload upload = _dbContext.Uploads.Where(up => up.Url == file).FirstOrDefault();
@@ -256,16 +246,6 @@ namespace Teknik.Areas.Upload.Controllers
                     contentType = upload.ContentType;
                     contentLength = upload.ContentLength;
                     dateUploaded = upload.DateUploaded;
-                    if (User.Identity.IsAuthenticated)
-                    {
-                        IdentityUserInfo userInfo = await IdentityHelper.GetIdentityUserInfo(_config, User.Identity.Name);
-                        premiumAccount = userInfo.AccountType == AccountType.Premium;
-                    }
-                    if (!premiumAccount && upload.UserId != null)
-                    {
-                        IdentityUserInfo userInfo = await IdentityHelper.GetIdentityUserInfo(_config, upload.User.Username);
-                        premiumAccount = userInfo.AccountType == AccountType.Premium;
-                    }
                 }
                 else
                 {
@@ -285,7 +265,7 @@ namespace Teknik.Areas.Upload.Controllers
 
                     return View(model);
                 }
-                else if (!premiumAccount && _config.UploadConfig.MaxDownloadSize < contentLength)
+                else if (_config.UploadConfig.MaxDownloadFileSize < contentLength)
                 {
                     // We want to force them to the dl page due to them being over the max download size for embedded content
                     DownloadViewModel model = new DownloadViewModel();

Teknik/Areas/User/Controllers/UserController.cs

@@ -37,6 +37,7 @@ using System.IdentityModel.Tokens.Jwt;
 using Microsoft.AspNetCore.Http;
 using IdentityServer4.Models;
 using Teknik.Utilities.Routing;
+using Teknik.BillingCore;
 
 namespace Teknik.Areas.Users.Controllers
 {
@@ -357,6 +358,51 @@ namespace Teknik.Areas.Users.Controllers
             return new StatusCodeResult(StatusCodes.Status403Forbidden);
         }
 
+        [TrackPageView]
+        public IActionResult BillingSettings()
+        {
+            string username = User.Identity.Name;
+            User user = UserHelper.GetUser(_dbContext, username);
+
+            if (user != null)
+            {
+                ViewBag.Title = "Billing Settings";
+                ViewBag.Description = "Your " + _config.Title + " Billing Settings";
+
+                BillingSettingsViewModel model = new BillingSettingsViewModel();
+                model.Page = "Billing";
+                model.UserID = user.UserId;
+                model.Username = user.Username;
+
+                if (user.BillingCustomer != null)
+                {
+                    var billingService = BillingFactory.GetBillingService(_config.BillingConfig);
+                    var subs = billingService.GetSubscriptionList(user.BillingCustomer.CustomerId);
+                    foreach (var sub in subs)
+                    {
+                        foreach (var price in sub.Prices)
+                        {
+                            var product = billingService.GetProduct(price.ProductId);
+                            var subView = new SubscriptionViewModel()
+                            {
+                                SubscriptionId = sub.Id,
+                                ProductId = product.ProductId,
+                                ProductName = product.Name,
+                                Storage = price.Storage,
+                                Price = price.Amount,
+                                Interval = price.Interval.ToString()
+                            };
+                            model.Subscriptions.Add(subView);
+                        }
+                    }
+                }
+
+                return View("/Areas/User/Views/User/Settings/BillingSettings.cshtml", model);
+            }
+
+            return new StatusCodeResult(StatusCodes.Status403Forbidden);
+        }
+
         [TrackPageView]
         public async Task<IActionResult> SecuritySettings()
         {

Teknik/Areas/User/Models/UploadSettings.cs

@@ -21,14 +21,20 @@ namespace Teknik.Areas.Users.Models
         public ExpirationUnit ExpirationUnit { get; set; }
 
         [Column("MaxUploadStorage")]
+        // Maximum Allotted total upload storage
         public long? MaxUploadStorage { get; set; }
 
+        [Column("MaxUploadFileSize")]
+        // Maximum allowed file size
+        public long? MaxUploadFileSize { get; set; }
+
         public UploadSettings()
         {
             Encrypt = false;
             ExpirationLength = 1;
             ExpirationUnit = ExpirationUnit.Never;
             MaxUploadStorage = null;
+            MaxUploadFileSize = null;
         }
     }
 }

Teknik/Areas/User/Models/User.cs

@@ -6,6 +6,7 @@ using Teknik.Attributes;
 using Teknik.Models;
 using Teknik.Utilities;
 using Microsoft.AspNetCore.Identity;
+using Teknik.Areas.Billing.Models;
 
 namespace Teknik.Areas.Users.Models
 {
@@ -15,6 +16,8 @@ namespace Teknik.Areas.Users.Models
 
         public string Username { get; set; }
 
+        public virtual Customer BillingCustomer { get; set; }
+
         public virtual ICollection<UserFeature> Features { get; set; }
 
         public virtual InviteCode ClaimedInviteCode { get; set; }

Teknik/Areas/User/ViewModels/BillingSettingsViewModel.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Teknik.BillingCore.Models;
+
+namespace Teknik.Areas.Users.ViewModels
+{
+    public class BillingSettingsViewModel : SettingsViewModel
+    {
+        public List<SubscriptionViewModel> Subscriptions { get; set; }
+
+        public BillingSettingsViewModel()
+        {
+            Subscriptions = new List<SubscriptionViewModel>();
+        }
+    }
+}

Teknik/Areas/User/ViewModels/SubscriptionViewModel.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Teknik.ViewModels;
+
+namespace Teknik.Areas.Users.ViewModels
+{
+    public class SubscriptionViewModel : SettingsViewModel
+    {
+        public string SubscriptionId { get; set; }
+
+        public string ProductId { get; set; }
+
+        public string ProductName { get; set; }
+
+        public decimal? Price { get; set; }
+
+        public string Interval { get; set; }
+
+        public long Storage { get; set; }
+    }
+}

Teknik/Areas/User/Views/User/Settings/BillingSettings.cshtml

@@ -0,0 +1,32 @@
+@model Teknik.Areas.Users.ViewModels.BillingSettingsViewModel
+
+@using Teknik.BillingCore.Models
+
+@{
+    Layout = "~/Areas/User/Views/User/Settings/Settings.cshtml";
+}
+
+<div class="row">
+    <div class="col-sm-10 col-sm-offset-1">
+        <br />
+        <label for="activeSubscriptions"><h4>Active Subscriptions</h4></label>
+        <div id="activeSubscriptions" style="overflow-y: auto; max-height: 400px;">
+            <ul class="list-group" id="activeSubscriptionList">
+                @if (Model.Subscriptions.Any())
+                {
+                    foreach (var subscription in Model.Subscriptions)
+                    {
+                    <li class="list-group-item">
+                        <h4 class="list-group-item-heading">@subscription.ProductName: <strong>@(StringHelper.GetBytesReadable(subscription.Storage))</strong> for <strong>@($"${subscription.Price:0.00} / {subscription.Interval}")</strong></h4>
+                        <p><a href="@(Url.SubRouteUrl("billing", "Billing.CancelSubscription", new { subscriptionId = subscription.SubscriptionId, productId = subscription.ProductId }))">Cancel Subscription</a></p>
+                    </li>
+                    }
+                }
+                else
+                {
+                    <li class="list-group-item text-center">No Active Subscriptions</li>
+                }
+            </ul>
+        </div>
+    </div>
+</div>

Teknik/Areas/User/Views/User/Settings/Settings.cshtml

@@ -17,6 +17,7 @@
                         <div class="panel-heading text-center"><strong>Personal Settings</strong></div>
                         <a href="@Url.SubRouteUrl("account", "User.ProfileSettings")" class="list-group-item @(Model.Page == "Profile" ? "active" : string.Empty)">Profile</a>
                         <a href="@Url.SubRouteUrl("account", "User.AccountSettings")" class="list-group-item @(Model.Page == "Account" ? "active" : string.Empty)">Account</a>
+                        <a href="@Url.SubRouteUrl("account", "User.BillingSettings")" class="list-group-item @(Model.Page == "Billing" ? "active" : string.Empty)">Billing</a>
                         <a href="@Url.SubRouteUrl("account", "User.SecuritySettings")" class="list-group-item @(Model.Page == "Security" ? "active" : string.Empty)">Security</a>
                         <a href="@Url.SubRouteUrl("account", "User.InviteSettings")" class="list-group-item @(Model.Page == "Invite" ? "active" : string.Empty)">Invite Codes</a>
                         <a href="@Url.SubRouteUrl("account", "User.BlogSettings")" class="list-group-item @(Model.Page == "Blog" ? "active" : string.Empty)">Blogging</a>

Teknik/Data/Migrations/20211009192142_AddBillingCustomers.cs

@@ -0,0 +1,40 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+namespace Teknik.Data.Migrations
+{
+    public partial class AddBillingCustomers : Migration
+    {
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "Customers",
+                columns: table => new
+                {
+                    CustomerId = table.Column<string>(type: "nvarchar(450)", nullable: false),
+                    UserId = table.Column<int>(type: "int", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Customers", x => x.CustomerId);
+                    table.ForeignKey(
+                        name: "FK_Customers_Users_UserId",
+                        column: x => x.UserId,
+                        principalTable: "Users",
+                        principalColumn: "UserId",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Customers_UserId",
+                table: "Customers",
+                column: "UserId",
+                unique: true);
+        }
+
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "Customers");
+        }
+    }
+}

Teknik/Data/Migrations/20211113052031_RenameUploadSettings.cs

@@ -0,0 +1,23 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+namespace Teknik.Data.Migrations
+{
+    public partial class RenameUploadSettings : Migration
+    {
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<long>(
+                name: "MaxUploadFileSize",
+                table: "Users",
+                type: "bigint",
+                nullable: true);
+        }
+
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "MaxUploadFileSize",
+                table: "Users");
+        }
+    }
+}

Teknik/Data/TeknikEntities.cs

@@ -12,6 +12,7 @@ using Teknik.Areas.Vault.Models;
 using Microsoft.EntityFrameworkCore;
 using Teknik.Models;
 using System.Configuration;
+using Teknik.Areas.Billing.Models;
 
 namespace Teknik.Data
 {
@@ -25,6 +26,8 @@ namespace Teknik.Data
         public DbSet<UserSettings> UserSettings { get; set; }
         public DbSet<BlogSettings> BlogSettings { get; set; }
         public DbSet<UploadSettings> UploadSettings { get; set; }
+        // Billing Customers
+        public DbSet<Customer> Customers { get; set; }
         // Features
         public DbSet<Feature> Features { get; set; }
         // Blogs
@@ -72,6 +75,7 @@ namespace Teknik.Data
             modelBuilder.Entity<User>().OwnsOne(u => u.UserSettings, us => us.ToTable("Users"));
             modelBuilder.Entity<User>().OwnsOne(u => u.BlogSettings, bs => bs.ToTable("Users"));
             modelBuilder.Entity<User>().OwnsOne(u => u.UploadSettings, us => us.ToTable("Users"));
+            modelBuilder.Entity<User>().HasOne(u => u.BillingCustomer).WithOne(i => i.User);
             modelBuilder.Entity<User>().HasMany(u => u.Features).WithOne(u => u.User);
             modelBuilder.Entity<User>().HasMany(u => u.Uploads).WithOne(u => u.User);
             modelBuilder.Entity<User>().HasMany(u => u.Pastes).WithOne(u => u.User);
@@ -86,6 +90,9 @@ namespace Teknik.Data
             //modelBuilder.Entity<InviteCode>().HasOne(t => t.ClaimedUser).WithOne(u => u.ClaimedInviteCode).HasPrincipalKey("ClaimedUserId").HasForeignKey("ClaimedUser_UserId"); // Legacy???
             //modelBuilder.Entity<InviteCode>().HasOne(t => t.Owner).WithMany(u => u.OwnedInviteCodes).HasPrincipalKey("ClaimedUserId").HasForeignKey("Owner_UserId"); // Legacy???
 
+            // Billing Customers
+            modelBuilder.Entity<Customer>().HasOne(u => u.User);
+
             // Features
             modelBuilder.Entity<UserFeature>().HasOne(f => f.Feature);
             modelBuilder.Entity<UserFeature>().HasOne(f => f.User);
@@ -119,6 +126,8 @@ namespace Teknik.Data
             //modelBuilder.Entity<UserSettings>().ToTable("Users");
             //modelBuilder.Entity<BlogSettings>().ToTable("Users");
             //modelBuilder.Entity<UploadSettings>().ToTable("Users");
+            // Billing Customers
+            modelBuilder.Entity<Customer>().ToTable("Customers");
             // Features
             modelBuilder.Entity<Feature>().ToTable("Features");
             // Blogs

Teknik/Scripts/Billing/Subscriptions.js

@@ -0,0 +1,49 @@
+
+$(document).ready(function () {
+    $('#subscribeModal').on('shown.bs.modal', function () {
+        $("#subscribeStatus").css('display', 'none', 'important');
+        $("#subscribeStatus").html('');
+    });
+
+    $("#subscribeSubmit").click(function () {
+        // Reset register status messages
+        $("#subscribeStatus").css('display', 'none', 'important');
+        $("#subscribeStatus").html('');
+
+        // Disable the register button
+        disableButton('#subscribeSubmit', 'Subscribing...');
+
+        var form = $('#registrationForm');
+        $.ajax({
+            type: "POST",
+            url: form.attr('action'),
+            data: form.serialize(),
+            headers: { 'X-Requested-With': 'XMLHttpRequest' },
+            xhrFields: {
+                withCredentials: true
+            },
+            success: function (html) {
+                if (html.success) {
+                    $('#registerModal').modal('hide');
+
+                    $("#top_msg").css('display', 'inline', 'important');
+                    $("#top_msg").html('<div class="alert alert-success alert-dismissable"><button type="button" class="close" data-dismiss="alert" aria-hidden="true">&times;</button>Registration Successful.  Redirecting...</div>');
+
+                    window.location = html.redirectUrl;
+                }
+                else {
+                    $("#registerStatus").css('display', 'inline', 'important');
+                    $("#registerStatus").html('<div class="alert alert-danger alert-dismissable"><button type="button" class="close" data-dismiss="alert" aria-hidden="true">&times;</button>' + parseErrorMessage(html) + '</div>');
+                }
+            },
+            error: function (response) {
+                $("#registerStatus").css('display', 'inline', 'important');
+                $("#registerStatus").html('<div class="alert alert-danger alert-dismissable"><button type="button" class="close" data-dismiss="alert" aria-hidden="true">&times;</button>' + parseErrorMessage(response.responseText) + '</div>');
+            }
+        }).always(function () {
+            enableButton('#registerSubmit', 'Sign Up');
+        });
+        return false;
+    });
+
+});

Utilities/Cryptography/Crypto.cs

@@ -0,0 +1,26 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Teknik.Utilities.Cryptography
+{
+    public static class Crypto
+    {
+        public static string GenerateKey(int keySize)
+        {
+            return StringHelper.RandomString(keySize / 8);
+        }
+
+        public static string GenerateIV(int ivSize)
+        {
+            return StringHelper.RandomString(ivSize / 16);
+        }
+
+        public static string HashPassword(string key, string password)
+        {
+            return SHA384.Hash(key, password).ToHex();
+        }
+    }
+}