feat: add Logs

api/Authentication/HttpCurrentUser.cs

@@ -0,0 +1,46 @@
+using System.Security.Claims;
+using Microsoft.AspNetCore.Http;
+using Microsoft.IdentityModel.JsonWebTokens;
+using mws.backend.dotnet.application.Common;
+
+namespace mws.backend.dotnet.api.Authentication;
+
+public class HttpCurrentUser(IHttpContextAccessor accessor) : ICurrentUser
+{
+    public Guid? UserId
+    {
+        get
+        {
+            var value = accessor.HttpContext?.User.FindFirstValue(JwtRegisteredClaimNames.Sub)
+                ?? accessor.HttpContext?.User.FindFirstValue(ClaimTypes.NameIdentifier)
+                ?? accessor.HttpContext?.User.FindFirstValue("sub");
+            return value is not null && Guid.TryParse(value, out var id) ? id : null;
+        }
+    }
+
+    public string? Username =>
+        accessor.HttpContext?.User.FindFirstValue(ClaimTypes.Name)
+        ?? accessor.HttpContext?.User.FindFirstValue("name");
+
+    public string? IpAddress
+    {
+        get
+        {
+            var context = accessor.HttpContext;
+            if (context is null) return null;
+            var forwarded = context.Request.Headers["X-Forwarded-For"].FirstOrDefault();
+            if (!string.IsNullOrWhiteSpace(forwarded))
+            {
+                var first = forwarded.Split(',')[0].Trim();
+                if (first.Length > 0) return Truncate(first, 45);
+            }
+            return Truncate(context.Connection.RemoteIpAddress?.ToString(), 45);
+        }
+    }
+
+    public string? UserAgent =>
+        Truncate(accessor.HttpContext?.Request.Headers.UserAgent.ToString(), 512);
+
+    private static string? Truncate(string? value, int max) =>
+        string.IsNullOrEmpty(value) ? value : (value.Length <= max ? value : value[..max]);
+}