From e00136de93625a9f7fa42b5256ffb03cc7380804 Mon Sep 17 00:00:00 2001
From: "nicolas.dorier" <nicolas.dorier@gmail.com>
Date: Sun, 26 Jan 2020 15:02:40 +0900
Subject: [PATCH] Fix spurious DefaultAntiforgery errors

---
 BTCPayServer/Hosting/Startup.cs | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/BTCPayServer/Hosting/Startup.cs b/BTCPayServer/Hosting/Startup.cs
index 3aac9ae7e..541f5cb3f 100644
--- a/BTCPayServer/Hosting/Startup.cs
+++ b/BTCPayServer/Hosting/Startup.cs
@@ -1,4 +1,5 @@
 using Microsoft.AspNetCore.Hosting;
+using Microsoft.AspNetCore.DataProtection;
 using Microsoft.Extensions.Hosting;
 using OpenIddict.Validation.AspNetCore;
 using OpenIddict.Abstractions;
@@ -49,6 +50,9 @@ namespace BTCPayServer.Hosting
             Logs.Configure(LoggerFactory);
             services.ConfigureBTCPayServer(Configuration);
             services.AddMemoryCache();
+            services.AddDataProtection()
+                .SetApplicationName("BTCPay Server")
+                .PersistKeysToFileSystem(GetDataDir());
             services.AddIdentity<ApplicationUser, IdentityRole>()
                 .AddEntityFrameworkStores<ApplicationDbContext>()
                 .AddDefaultTokenProviders();
@@ -140,6 +144,11 @@ namespace BTCPayServer.Hosting
             }
         }
 
+        private DirectoryInfo GetDataDir()
+        {
+            return new DirectoryInfo(Configuration.GetDataDir(DefaultConfiguration.GetNetworkType(Configuration)));
+        }
+
         private void ConfigureOpenIddict(IServiceCollection services)
         {
             // Register the OpenIddict services.