TaskAPI/Services/AuthService.cs - master - ilyamikhaylov07/integration_solution_course

TaskAPI/Services/AuthService.cs
70 строк2 KB
Ilya
add 4 laba
02 ноя 2025, 19:16
02 ноя 2025, 19:16fdd8d01
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using System.IdentityModel.Tokens.Jwt;
using System.Security.Claims;
using TaskAPI.Database;
using TaskAPI.DTOs.AuthDTOs;

namespace TaskAPI.Services
{
    public class AuthService
    {
        private readonly TaskDbContext _taskDbContext;
        private readonly TokenManager _tokenManager;
        public AuthService(TaskDbContext taskDbContext, TokenManager tokenManager)
        {
            _taskDbContext = taskDbContext;
            _tokenManager = tokenManager;
        }

        public async Task<TokenDTO?> GetTokensAsync([FromBody] LoginDTO dto)
        {
            var user = await _taskDbContext.Users
                .FirstOrDefaultAsync(u => u.Email == dto.Email);

            if (user == null)
            {
                return null;
            }

            if (!HasherPassword.VerifyPassword(dto.Password, user.PasswordHash))
            {
                return null;
            }

            List<Claim> claims = new List<Claim>
                {
                    new Claim(ClaimTypes.NameIdentifier, user.Id.ToString()),
                    new Claim(ClaimTypes.Email, dto.Email)
                };

            var refresh = _tokenManager.GenerateRefreshToken(claims);
            var access = _tokenManager.GenerateAccessToken(claims);

            return new TokenDTO
            {
                AccessToken = access,
                RefreshToken = refresh
            };
        }

        public Guid? ValidateToken(string token)
        {
            try
            {
                var handler = new JwtSecurityTokenHandler();
                var jwt = handler.ReadJwtToken(token);

                var userIdStr = jwt.Claims.FirstOrDefault(c => c.Type == ClaimTypes.NameIdentifier)?.Value;
                if (Guid.TryParse(userIdStr, out var userId))
                    return userId;

                return null;
            }
            catch
            {
                return null;
            }
        }
    }
}