Ajoute une page utilisateur et une persistance MySQL

ChessCubing.Server/Users/AuthenticatedSiteUser.cs

@@ -0,0 +1,40 @@
+using System.Security.Claims;
+
+namespace ChessCubing.Server.Users;
+
+public sealed record AuthenticatedSiteUser(
+    string Subject,
+    string Username,
+    string? Email,
+    string DisplayName);
+
+public static class AuthenticatedSiteUserFactory
+{
+    public static AuthenticatedSiteUser? FromClaimsPrincipal(ClaimsPrincipal user)
+    {
+        if (user.Identity?.IsAuthenticated != true)
+        {
+            return null;
+        }
+
+        var subject = user.FindFirst("sub")?.Value
+            ?? user.FindFirst(ClaimTypes.NameIdentifier)?.Value;
+        if (string.IsNullOrWhiteSpace(subject))
+        {
+            return null;
+        }
+
+        var username = user.FindFirst("preferred_username")?.Value
+            ?? user.Identity?.Name
+            ?? subject;
+        var email = user.FindFirst("email")?.Value;
+        var displayName = user.FindFirst("name")?.Value
+            ?? username;
+
+        return new AuthenticatedSiteUser(
+            subject.Trim(),
+            username.Trim(),
+            string.IsNullOrWhiteSpace(email) ? null : email.Trim(),
+            displayName.Trim());
+    }
+}