Saving changes

Using asymmetric validation

Services/UserService.sc.cs

@@ -0,0 +1,38 @@
+// using JwtAuthentication.Shared.Exceptions;
+// using JwtAuthentication.Shared.Models;
+using Icarus.Exceptions;
+using Icarus.Models.Shared;
+using Icarus.Services;
+using Icarus.Repositories;
+
+namespace Icarus.Services
+{
+    public class UserService
+    {
+        private Microsoft.Extensions.Configuration.IConfiguration _configuration;
+        private readonly UserRepository userRepository;
+
+        public UserService(UserRepository userRepository, Microsoft.Extensions.Configuration.IConfiguration configuration)
+        {
+            this._configuration = configuration;
+            this.userRepository = userRepository;
+        }
+
+        public void ValidateCredentials(UserCredentials userCredentials)
+        {
+            Icarus.Models.User user = userRepository.GetUser(userCredentials.Username);
+            bool isValid = user != null && AreValidCredentials(userCredentials, user);
+
+            if (!isValid)
+            {
+                throw new InvalidCredentialsException();
+            }
+        }
+
+        private static bool AreValidCredentials(UserCredentials userCredentials, Icarus.Models.User user)
+        {
+            return user.Username == userCredentials.Username &&
+                   user.Password == userCredentials.Password;
+        }
+    }
+}