passwordless sign in for admin

src/Core/Identity/ReadOnlyDatabaseIdentityUserStore.cs

@@ -0,0 +1,37 @@
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Identity;
+using Bit.Core.Repositories;
+
+namespace Bit.Core.Identity
+{
+    public class ReadOnlyDatabaseIdentityUserStore : ReadOnlyIdentityUserStore
+    {
+        private readonly IUserRepository _userRepository;
+
+        public ReadOnlyDatabaseIdentityUserStore(IUserRepository userRepository)
+        {
+            _userRepository = userRepository;
+        }
+
+        public override async Task<IdentityUser> FindByEmailAsync(string normalizedEmail,
+            CancellationToken cancellationToken = default(CancellationToken))
+        {
+            var user = await _userRepository.GetByEmailAsync(normalizedEmail);
+            return user?.ToIdentityUser();
+        }
+
+        public override async Task<IdentityUser> FindByIdAsync(string userId,
+            CancellationToken cancellationToken = default(CancellationToken))
+        {
+            if(!Guid.TryParse(userId, out var userIdGuid))
+            {
+                return null;
+            }
+
+            var user = await _userRepository.GetByIdAsync(userIdGuid);
+            return user?.ToIdentityUser();
+        }
+    }
+}