Initial commit (history squashed)

src/StellaOps.Authority/StellaOps.Authority.Plugin.Standard/StandardClaimsEnricher.cs

@@ -0,0 +1,43 @@
+using System;
+using System.Linq;
+using System.Security.Claims;
+using System.Threading;
+using System.Threading.Tasks;
+using StellaOps.Authority.Plugins.Abstractions;
+
+namespace StellaOps.Authority.Plugin.Standard;
+
+internal sealed class StandardClaimsEnricher : IClaimsEnricher
+{
+    public ValueTask EnrichAsync(
+        ClaimsIdentity identity,
+        AuthorityClaimsEnrichmentContext context,
+        CancellationToken cancellationToken)
+    {
+        if (identity is null)
+        {
+            throw new ArgumentNullException(nameof(identity));
+        }
+
+        if (context.User is { } user)
+        {
+            foreach (var role in user.Roles.Where(static r => !string.IsNullOrWhiteSpace(r)))
+            {
+                if (!identity.HasClaim(ClaimTypes.Role, role))
+                {
+                    identity.AddClaim(new Claim(ClaimTypes.Role, role));
+                }
+            }
+
+            foreach (var pair in user.Attributes)
+            {
+                if (!string.IsNullOrWhiteSpace(pair.Key) && !identity.HasClaim(pair.Key, pair.Value ?? string.Empty))
+                {
+                    identity.AddClaim(new Claim(pair.Key, pair.Value ?? string.Empty));
+                }
+            }
+        }
+
+        return ValueTask.CompletedTask;
+    }
+}