First Commit

Helpers/ADS.Helpers.Auth/Extensions/ServiceCollectionExtensions.cs

@@ -0,0 +1,59 @@
+using System.Text;
+using ADS.Helpers.Auth.Abstractions;
+using ADS.Helpers.Auth.Implementation;
+using ADS.Helpers.Auth.Models;
+using Microsoft.AspNetCore.Authentication.JwtBearer;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.IdentityModel.Tokens;
+
+namespace ADS.Helpers.Auth.Extensions;
+
+public static class ServiceCollectionExtensions
+{
+    public static IServiceCollection AddAdsAuthentication(
+        this IServiceCollection services,
+        IConfiguration configuration)
+    {
+        services.AddHttpContextAccessor();
+
+        var jwtSection = configuration.GetSection("Jwt");
+        services.Configure<JwtOptions>(jwtSection);
+
+        var jwtOptions = jwtSection.Get<JwtOptions>()
+            ?? throw new InvalidOperationException("Jwt configuration missing.");
+
+        var key = new SymmetricSecurityKey(
+            Encoding.UTF8.GetBytes(jwtOptions.SigningKey));
+
+        services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
+            .AddJwtBearer(options =>
+            {
+                options.TokenValidationParameters = new TokenValidationParameters
+                {
+                    ValidateIssuer = true,
+                    ValidateAudience = true,
+                    ValidateLifetime = jwtOptions.ValidateLifetime,
+                    ValidateIssuerSigningKey = true,
+                    ValidIssuer = jwtOptions.Issuer,
+                    ValidAudience = jwtOptions.Audience,
+                    IssuerSigningKey = key,
+                    ClockSkew = TimeSpan.FromMinutes(jwtOptions.ClockSkewMinutes)
+                };
+            });
+
+        services.AddScoped<IAdsPrincipalAccessor, AdsPrincipalAccessor>();
+
+        // NUEVO: servicio emisor de token (requiere que el host registre validadores)
+        services.AddScoped<IAdsTokenService, AdsTokenService>();
+
+        return services;
+    }
+
+    public static IServiceCollection AddAdsAuthorization(
+        this IServiceCollection services)
+    {
+        services.AddAuthorization();
+        return services;
+    }
+}