VEU.WathBody/3-app/2-cli/Server.WatchBody.Web/Middleware/ApiKeyMiddleware.cs

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using Server.WatchBody.Core.Dal.Src.Domain;
using Server.WatchBody.Core.Dal.Src.Repository;
using Server.WatchBody.Web.Services;
namespace Server.WatchBody.Web.Middleware;
/// <summary>
/// Аутентификация X-Api-Key → athlete_id (spec 02-api-key-middleware).
/// /health — без ключа. 401 единым телом: нет ключа / чужой / заблокирован.
/// </summary>
public class ApiKeyMiddleware(RequestDelegate next)
{
public const string AthleteIdItem = "athlete_id";
public async Task InvokeAsync(HttpContext context, IAthleteRepository athletes)
{
// /health без ключа — только GET (З-42 п. 8): прочие методы идут
// в аутентификацию и получают 401, а не деградацию 404/405
if (context.Request.Path == "/health" &&
HttpMethods.IsGet(context.Request.Method))
{
await next(context);
return;
}
var key = context.Request.Headers["X-Api-Key"].FirstOrDefault();
Athlete? athlete = null;
if (!string.IsNullOrEmpty(key))
{
var hash = ApiKeyHash.Of(key);
athlete = athletes.Select(new AthleteFilter { ApiKeyHash = hash })
.FirstOrDefault();
}
if (athlete == null || athlete.IsBlocked)
{
context.Response.StatusCode = 401;
context.Response.ContentType = "application/json";
await context.Response.WriteAsync("""{"error":"unauthorized"}""");
return;
}
context.Items[AthleteIdItem] = athlete.Id;
await next(context);
}
}