1 files changed, 68 insertions, 0 deletions
diff --git a/Jellyfin.Api/Auth/CustomAuthenticationHandler.cs b/Jellyfin.Api/Auth/CustomAuthenticationHandler.cs
new file mode 100644
index 000000000..26f7d9d2d
--- /dev/null
+++ b/Jellyfin.Api/Auth/CustomAuthenticationHandler.cs
@@ -0,0 +1,68 @@
+using System.Security.Claims;
+using System.Text.Encodings.Web;
+using System.Threading.Tasks;
+using Jellyfin.Api.Constants;
+using MediaBrowser.Controller.Net;
+using Microsoft.AspNetCore.Authentication;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
+
+namespace Jellyfin.Api.Auth
+{
+    /// <summary>
+    /// Custom authentication handler wrapping the legacy authentication.
+    /// </summary>
+    public class CustomAuthenticationHandler : AuthenticationHandler<AuthenticationSchemeOptions>
+    {
+        private readonly IAuthService _authService;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="CustomAuthenticationHandler" /> class.
+        /// </summary>
+        /// <param name="authService">The jellyfin authentication service.</param>
+        /// <param name="options">Options monitor.</param>
+        /// <param name="logger">The logger.</param>
+        /// <param name="encoder">The url encoder.</param>
+        /// <param name="clock">The system clock.</param>
+        public CustomAuthenticationHandler(
+            IAuthService authService,
+            IOptionsMonitor<AuthenticationSchemeOptions> options,
+            ILoggerFactory logger,
+            UrlEncoder encoder,
+            ISystemClock clock) : base(options, logger, encoder, clock)
+        {
+            _authService = authService;
+        }
+
+        /// <inheritdoc />
+        protected override Task<AuthenticateResult> HandleAuthenticateAsync()
+        {
+            var authenticatedAttribute = new AuthenticatedAttribute();
+            try
+            {
+                var user = _authService.Authenticate(Request, authenticatedAttribute);
+                if (user == null)
+                {
+                    return Task.FromResult(AuthenticateResult.Fail("Invalid user"));
+                }
+
+                var claims = new[]
+                {
+                    new Claim(ClaimTypes.Name, user.Name),
+                    new Claim(
+                        ClaimTypes.Role,
+                        value: user.Policy.IsAdministrator ? UserRoles.Administrator : UserRoles.User)
+                };
+                var identity = new ClaimsIdentity(claims, Scheme.Name);
+                var principal = new ClaimsPrincipal(identity);
+                var ticket = new AuthenticationTicket(principal, Scheme.Name);
+
+                return Task.FromResult(AuthenticateResult.Success(ticket));
+            }
+            catch (SecurityException ex)
+            {
+                return Task.FromResult(AuthenticateResult.Fail(ex));
+            }
+        }
+    }
+}