Allow the merchant to disable network fees at store level

BTCPayServer/Controllers/InvoiceController.cs

@@ -107,7 +107,7 @@ namespace BTCPayServer.Controllers
 			entity.RedirectURL = invoice.RedirectURL ?? store.StoreWebsite;
 			entity.Status = "new";
 			entity.SpeedPolicy = ParseSpeedPolicy(invoice.TransactionSpeed, store.SpeedPolicy);
-			entity.TxFee = (await _FeeProvider.GetFeeRateAsync()).GetFee(100); // assume price for 100 bytes
+			entity.TxFee = store.GetStoreBlob(_Network).NetworkFeeDisabled ? Money.Zero : (await _FeeProvider.GetFeeRateAsync()).GetFee(100); // assume price for 100 bytes
 			entity.Rate = (double)await _RateProvider.GetRateAsync(invoice.Currency);
 			entity.PosData = invoice.PosData;
 			entity.DepositAddress = await _Wallet.ReserveAddressAsync(ParseDerivationStrategy(derivationStrategy));

BTCPayServer/Controllers/StoresController.cs

@@ -119,6 +119,7 @@ namespace BTCPayServer.Controllers
 			var vm = new StoreViewModel();
 			vm.StoreName = store.StoreName;
 			vm.StoreWebsite = store.StoreWebsite;
+			vm.NetworkFee = !store.GetStoreBlob(_Network).NetworkFeeDisabled;
 			vm.SpeedPolicy = store.SpeedPolicy;
 			vm.DerivationScheme = store.DerivationStrategy;
 			vm.StatusMessage = StatusMessage;
@@ -173,6 +174,14 @@ namespace BTCPayServer.Controllers
 					}
 				}
 
+				if(store.GetStoreBlob(_Network).NetworkFeeDisabled != !model.NetworkFee)
+				{
+					var blob = store.GetStoreBlob(_Network);
+					blob.NetworkFeeDisabled = !model.NetworkFee;
+					store.SetStoreBlob(blob, _Network);
+					needUpdate = true;
+				}
+
 				if(needUpdate)
 				{
 					await _Repo.UpdateStore(store);

BTCPayServer/Data/StoreData.cs

@@ -1,9 +1,12 @@
 using BTCPayServer.Models;
 using BTCPayServer.Services.Invoices;
+using NBitcoin;
+using NBXplorer;
 using System;
 using System.Collections.Generic;
 using System.ComponentModel.DataAnnotations.Schema;
 using System.Linq;
+using System.Text;
 using System.Threading.Tasks;
 
 namespace BTCPayServer.Data
@@ -51,5 +54,28 @@ namespace BTCPayServer.Data
 		{
 			get; set;
 		}
+		public byte[] StoreBlob
+		{
+			get;
+			set;
+		}
+
+		public StoreBlob GetStoreBlob(Network network)
+		{
+			return StoreBlob == null ? new StoreBlob() : new Serializer(network).ToObject<StoreBlob>(Encoding.UTF8.GetString(StoreBlob));
+		}
+
+		public void SetStoreBlob(StoreBlob storeBlob, Network network)
+		{
+			StoreBlob = Encoding.UTF8.GetBytes(new Serializer(network).ToString(storeBlob));
+		}
+	}
+
+	public class StoreBlob
+	{
+		public bool NetworkFeeDisabled
+		{
+			get; set;
+		}
 	}
 }

BTCPayServer/Migrations/20171023101754_StoreBlob.Designer.cs

@@ -0,0 +1,452 @@
+// <auto-generated />
+using BTCPayServer.Data;
+using BTCPayServer.Services.Invoices;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage;
+using Microsoft.EntityFrameworkCore.Storage.Internal;
+using System;
+
+namespace BTCPayServer.Migrations
+{
+    [DbContext(typeof(ApplicationDbContext))]
+    [Migration("20171023101754_StoreBlob")]
+    partial class StoreBlob
+    {
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "2.0.0-rtm-26452");
+
+            modelBuilder.Entity("BTCPayServer.Data.AddressInvoiceData", b =>
+                {
+                    b.Property<string>("Address")
+                        .ValueGeneratedOnAdd();
+
+                    b.Property<string>("InvoiceDataId");
+
+                    b.HasKey("Address");
+
+                    b.HasIndex("InvoiceDataId");
+
+                    b.ToTable("AddressInvoices");
+                });
+
+            modelBuilder.Entity("BTCPayServer.Data.InvoiceData", b =>
+                {
+                    b.Property<string>("Id")
+                        .ValueGeneratedOnAdd();
+
+                    b.Property<byte[]>("Blob");
+
+                    b.Property<DateTimeOffset>("Created");
+
+                    b.Property<string>("CustomerEmail");
+
+                    b.Property<string>("ExceptionStatus");
+
+                    b.Property<string>("ItemCode");
+
+                    b.Property<string>("OrderId");
+
+                    b.Property<string>("Status");
+
+                    b.Property<string>("StoreDataId");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("StoreDataId");
+
+                    b.ToTable("Invoices");
+                });
+
+            modelBuilder.Entity("BTCPayServer.Data.PairedSINData", b =>
+                {
+                    b.Property<string>("Id")
+                        .ValueGeneratedOnAdd();
+
+                    b.Property<string>("Facade");
+
+                    b.Property<string>("Label");
+
+                    b.Property<DateTimeOffset>("PairingTime");
+
+                    b.Property<string>("SIN");
+
+                    b.Property<string>("StoreDataId");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("SIN");
+
+                    b.HasIndex("StoreDataId");
+
+                    b.ToTable("PairedSINData");
+                });
+
+            modelBuilder.Entity("BTCPayServer.Data.PairingCodeData", b =>
+                {
+                    b.Property<string>("Id")
+                        .ValueGeneratedOnAdd();
+
+                    b.Property<DateTime>("DateCreated");
+
+                    b.Property<DateTimeOffset>("Expiration");
+
+                    b.Property<string>("Facade");
+
+                    b.Property<string>("Label");
+
+                    b.Property<string>("SIN");
+
+                    b.Property<string>("StoreDataId");
+
+                    b.Property<string>("TokenValue");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("PairingCodes");
+                });
+
+            modelBuilder.Entity("BTCPayServer.Data.PaymentData", b =>
+                {
+                    b.Property<string>("Id")
+                        .ValueGeneratedOnAdd();
+
+                    b.Property<byte[]>("Blob");
+
+                    b.Property<string>("InvoiceDataId");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("InvoiceDataId");
+
+                    b.ToTable("Payments");
+                });
+
+            modelBuilder.Entity("BTCPayServer.Data.PendingInvoiceData", b =>
+                {
+                    b.Property<string>("Id")
+                        .ValueGeneratedOnAdd();
+
+                    b.HasKey("Id");
+
+                    b.ToTable("PendingInvoices");
+                });
+
+            modelBuilder.Entity("BTCPayServer.Data.RefundAddressesData", b =>
+                {
+                    b.Property<string>("Id")
+                        .ValueGeneratedOnAdd();
+
+                    b.Property<byte[]>("Blob");
+
+                    b.Property<string>("InvoiceDataId");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("InvoiceDataId");
+
+                    b.ToTable("RefundAddresses");
+                });
+
+            modelBuilder.Entity("BTCPayServer.Data.SettingData", b =>
+                {
+                    b.Property<string>("Id")
+                        .ValueGeneratedOnAdd();
+
+                    b.Property<string>("Value");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Settings");
+                });
+
+            modelBuilder.Entity("BTCPayServer.Data.StoreData", b =>
+                {
+                    b.Property<string>("Id")
+                        .ValueGeneratedOnAdd();
+
+                    b.Property<string>("DerivationStrategy");
+
+                    b.Property<int>("SpeedPolicy");
+
+                    b.Property<byte[]>("StoreBlob");
+
+                    b.Property<byte[]>("StoreCertificate");
+
+                    b.Property<string>("StoreName");
+
+                    b.Property<string>("StoreWebsite");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Stores");
+                });
+
+            modelBuilder.Entity("BTCPayServer.Data.UserStore", b =>
+                {
+                    b.Property<string>("ApplicationUserId");
+
+                    b.Property<string>("StoreDataId");
+
+                    b.Property<string>("Role");
+
+                    b.HasKey("ApplicationUserId", "StoreDataId");
+
+                    b.HasIndex("StoreDataId");
+
+                    b.ToTable("UserStore");
+                });
+
+            modelBuilder.Entity("BTCPayServer.Models.ApplicationUser", b =>
+                {
+                    b.Property<string>("Id")
+                        .ValueGeneratedOnAdd();
+
+                    b.Property<int>("AccessFailedCount");
+
+                    b.Property<string>("ConcurrencyStamp")
+                        .IsConcurrencyToken();
+
+                    b.Property<string>("Email")
+                        .HasMaxLength(256);
+
+                    b.Property<bool>("EmailConfirmed");
+
+                    b.Property<bool>("LockoutEnabled");
+
+                    b.Property<DateTimeOffset?>("LockoutEnd");
+
+                    b.Property<string>("NormalizedEmail")
+                        .HasMaxLength(256);
+
+                    b.Property<string>("NormalizedUserName")
+                        .HasMaxLength(256);
+
+                    b.Property<string>("PasswordHash");
+
+                    b.Property<string>("PhoneNumber");
+
+                    b.Property<bool>("PhoneNumberConfirmed");
+
+                    b.Property<bool>("RequiresEmailConfirmation");
+
+                    b.Property<string>("SecurityStamp");
+
+                    b.Property<bool>("TwoFactorEnabled");
+
+                    b.Property<string>("UserName")
+                        .HasMaxLength(256);
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("NormalizedEmail")
+                        .HasName("EmailIndex");
+
+                    b.HasIndex("NormalizedUserName")
+                        .IsUnique()
+                        .HasName("UserNameIndex");
+
+                    b.ToTable("AspNetUsers");
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRole", b =>
+                {
+                    b.Property<string>("Id")
+                        .ValueGeneratedOnAdd();
+
+                    b.Property<string>("ConcurrencyStamp")
+                        .IsConcurrencyToken();
+
+                    b.Property<string>("Name")
+                        .HasMaxLength(256);
+
+                    b.Property<string>("NormalizedName")
+                        .HasMaxLength(256);
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("NormalizedName")
+                        .IsUnique()
+                        .HasName("RoleNameIndex");
+
+                    b.ToTable("AspNetRoles");
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<string>", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd();
+
+                    b.Property<string>("ClaimType");
+
+                    b.Property<string>("ClaimValue");
+
+                    b.Property<string>("RoleId")
+                        .IsRequired();
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("RoleId");
+
+                    b.ToTable("AspNetRoleClaims");
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<string>", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd();
+
+                    b.Property<string>("ClaimType");
+
+                    b.Property<string>("ClaimValue");
+
+                    b.Property<string>("UserId")
+                        .IsRequired();
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("AspNetUserClaims");
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<string>", b =>
+                {
+                    b.Property<string>("LoginProvider");
+
+                    b.Property<string>("ProviderKey");
+
+                    b.Property<string>("ProviderDisplayName");
+
+                    b.Property<string>("UserId")
+                        .IsRequired();
+
+                    b.HasKey("LoginProvider", "ProviderKey");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("AspNetUserLogins");
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<string>", b =>
+                {
+                    b.Property<string>("UserId");
+
+                    b.Property<string>("RoleId");
+
+                    b.HasKey("UserId", "RoleId");
+
+                    b.HasIndex("RoleId");
+
+                    b.ToTable("AspNetUserRoles");
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<string>", b =>
+                {
+                    b.Property<string>("UserId");
+
+                    b.Property<string>("LoginProvider");
+
+                    b.Property<string>("Name");
+
+                    b.Property<string>("Value");
+
+                    b.HasKey("UserId", "LoginProvider", "Name");
+
+                    b.ToTable("AspNetUserTokens");
+                });
+
+            modelBuilder.Entity("BTCPayServer.Data.AddressInvoiceData", b =>
+                {
+                    b.HasOne("BTCPayServer.Data.InvoiceData", "InvoiceData")
+                        .WithMany()
+                        .HasForeignKey("InvoiceDataId");
+                });
+
+            modelBuilder.Entity("BTCPayServer.Data.InvoiceData", b =>
+                {
+                    b.HasOne("BTCPayServer.Data.StoreData", "StoreData")
+                        .WithMany()
+                        .HasForeignKey("StoreDataId");
+                });
+
+            modelBuilder.Entity("BTCPayServer.Data.PaymentData", b =>
+                {
+                    b.HasOne("BTCPayServer.Data.InvoiceData", "InvoiceData")
+                        .WithMany("Payments")
+                        .HasForeignKey("InvoiceDataId");
+                });
+
+            modelBuilder.Entity("BTCPayServer.Data.RefundAddressesData", b =>
+                {
+                    b.HasOne("BTCPayServer.Data.InvoiceData", "InvoiceData")
+                        .WithMany("RefundAddresses")
+                        .HasForeignKey("InvoiceDataId");
+                });
+
+            modelBuilder.Entity("BTCPayServer.Data.UserStore", b =>
+                {
+                    b.HasOne("BTCPayServer.Models.ApplicationUser", "ApplicationUser")
+                        .WithMany("UserStores")
+                        .HasForeignKey("ApplicationUserId")
+                        .OnDelete(DeleteBehavior.Cascade);
+
+                    b.HasOne("BTCPayServer.Data.StoreData", "StoreData")
+                        .WithMany("UserStores")
+                        .HasForeignKey("StoreDataId")
+                        .OnDelete(DeleteBehavior.Cascade);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<string>", b =>
+                {
+                    b.HasOne("Microsoft.AspNetCore.Identity.IdentityRole")
+                        .WithMany()
+                        .HasForeignKey("RoleId")
+                        .OnDelete(DeleteBehavior.Cascade);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<string>", b =>
+                {
+                    b.HasOne("BTCPayServer.Models.ApplicationUser")
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<string>", b =>
+                {
+                    b.HasOne("BTCPayServer.Models.ApplicationUser")
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<string>", b =>
+                {
+                    b.HasOne("Microsoft.AspNetCore.Identity.IdentityRole")
+                        .WithMany()
+                        .HasForeignKey("RoleId")
+                        .OnDelete(DeleteBehavior.Cascade);
+
+                    b.HasOne("BTCPayServer.Models.ApplicationUser")
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<string>", b =>
+                {
+                    b.HasOne("BTCPayServer.Models.ApplicationUser")
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade);
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

BTCPayServer/Migrations/20171023101754_StoreBlob.cs

@@ -0,0 +1,24 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+using System;
+using System.Collections.Generic;
+
+namespace BTCPayServer.Migrations
+{
+    public partial class StoreBlob : Migration
+    {
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<byte[]>(
+                name: "StoreBlob",
+                table: "Stores",
+                nullable: true);
+        }
+
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "StoreBlob",
+                table: "Stores");
+        }
+    }
+}

BTCPayServer/Migrations/ApplicationDbContextModelSnapshot.cs

@@ -173,6 +173,8 @@ namespace BTCPayServer.Migrations
 
                     b.Property<int>("SpeedPolicy");
 
+                    b.Property<byte[]>("StoreBlob");
+
                     b.Property<byte[]>("StoreCertificate");
 
                     b.Property<string>("StoreName");

BTCPayServer/Models/StoreViewModels/StoreViewModel.cs

@@ -21,6 +21,7 @@ namespace BTCPayServer.Models.StoreViewModels
 
 		[Url]
 		[Display(Name = "Store Website")]
+		[MaxLength(500)]
 		public string StoreWebsite
 		{
 			get;
@@ -39,6 +40,12 @@ namespace BTCPayServer.Models.StoreViewModels
 			get; set;
 		}
 
+		[Display(Name = "Add network fee to invoice (vary with mining fees)")]
+		public bool NetworkFee
+		{
+			get; set;
+		}
+
 		public List<(string KeyPath, string Address)> AddressSamples
 		{
 			get; set;

BTCPayServer/Views/Stores/UpdateStore.cshtml

@@ -26,6 +26,10 @@
 				<input asp-for="StoreWebsite" class="form-control" />
 				<span asp-validation-for="StoreWebsite" class="text-danger"></span>
 			</div>
+			<div class="form-group">
+				<label asp-for="NetworkFee"></label>
+				<input asp-for="NetworkFee" type="checkbox" class="form-check" />
+			</div>
 			<div class="form-group">
 				<label asp-for="SpeedPolicy"></label>
 				<select asp-for="SpeedPolicy" class="form-control">