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169
RS_system/Services/AuthService.cs
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169
RS_system/Services/AuthService.cs
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using Microsoft.EntityFrameworkCore;
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using Rs_system.Data;
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using Rs_system.Models;
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using Rs_system.Models.ViewModels;
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using BC = BCrypt.Net.BCrypt;
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namespace Rs_system.Services;
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public class AuthService : IAuthService
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{
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private readonly ApplicationDbContext _context;
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private readonly ILogger<AuthService> _logger;
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public AuthService(ApplicationDbContext context, ILogger<AuthService> logger)
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{
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_context = context;
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_logger = logger;
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}
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public async Task<Usuario?> ValidateUserAsync(string username, string password)
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{
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var usuario = await _context.Usuarios
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.AsNoTracking()
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.Include(u => u.Persona)
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.Include(u => u.RolesUsuario)
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.ThenInclude(ru => ru.Rol)
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.FirstOrDefaultAsync(u => u.NombreUsuario == username && u.Activo);
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if (usuario == null)
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{
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_logger.LogWarning("Login attempt for non-existent user: {Username}", username);
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return null;
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}
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// Verify password using BCrypt
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try
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{
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if (!BC.Verify(password, usuario.HashContrasena))
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{
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_logger.LogWarning("Invalid password for user: {Username}", username);
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return null;
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}
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}
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catch (Exception ex)
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{
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_logger.LogError(ex, "Error verifying password for user: {Username}", username);
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return null;
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}
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_logger.LogInformation("User {Username} logged in successfully", username);
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return usuario;
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}
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public async Task<(bool Success, string Message, Usuario? User)> RegisterUserAsync(RegisterViewModel model)
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{
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// Check if username already exists
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if (await _context.Usuarios.AnyAsync(u => u.NombreUsuario == model.NombreUsuario))
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{
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return (false, "El nombre de usuario ya existe", null);
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}
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// Check if email already exists
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if (await _context.Usuarios.AnyAsync(u => u.Email == model.Email))
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{
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return (false, "El correo electrónico ya está registrado", null);
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}
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using var transaction = await _context.Database.BeginTransactionAsync();
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try
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{
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// Create persona first
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var persona = new Persona
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{
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Nombres = model.Nombres,
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Apellidos = model.Apellidos,
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Email = model.Email,
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Activo = true,
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CreadoEn = DateTime.UtcNow,
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ActualizadoEn = DateTime.UtcNow
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};
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_context.Personas.Add(persona);
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await _context.SaveChangesAsync();
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// Create user with hashed password
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var usuario = new Usuario
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{
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PersonaId = persona.Id,
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NombreUsuario = model.NombreUsuario,
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Email = model.Email,
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HashContrasena = BC.HashPassword(model.Contrasena),
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Activo = true,
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CreadoEn = DateTime.UtcNow,
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ActualizadoEn = DateTime.UtcNow
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};
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_context.Usuarios.Add(usuario);
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await _context.SaveChangesAsync();
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// Assign default role (LECTOR - reader)
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var defaultRole = await _context.RolesSistema
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.FirstOrDefaultAsync(r => r.Codigo == "LECTOR");
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if (defaultRole != null)
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{
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var rolUsuario = new RolUsuario
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{
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UsuarioId = usuario.Id,
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RolId = defaultRole.Id,
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AsignadoEn = DateTime.UtcNow
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};
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_context.RolesUsuario.Add(rolUsuario);
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await _context.SaveChangesAsync();
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}
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await transaction.CommitAsync();
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_logger.LogInformation("New user registered: {Username}", model.NombreUsuario);
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return (true, "Usuario registrado exitosamente", usuario);
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}
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catch (Exception ex)
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{
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await transaction.RollbackAsync();
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_logger.LogError(ex, "Error registering user: {Username}", model.NombreUsuario);
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return (false, "Error al registrar el usuario", null);
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}
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}
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public async Task<List<string>> GetUserRolesAsync(long userId)
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{
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return await _context.RolesUsuario
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.AsNoTracking()
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.Where(ru => ru.UsuarioId == userId)
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.Select(ru => ru.Rol.Codigo)
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.ToListAsync();
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}
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public async Task UpdateLastLoginAsync(long userId)
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{
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var usuario = await _context.Usuarios.FindAsync(userId);
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if (usuario != null)
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{
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usuario.UltimoLogin = DateTime.UtcNow;
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await _context.SaveChangesAsync();
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}
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}
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public async Task<bool> HasPermissionAsync(long userId, string permissionCode)
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{
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// ROOT has all permissions
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var roles = await GetUserRolesAsync(userId);
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if (roles.Contains("ROOT")) return true;
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return await _context.RolesUsuario
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.AsNoTracking()
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.Where(ru => ru.UsuarioId == userId)
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.Join(_context.RolesPermisos.AsNoTracking(),
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ru => ru.RolId,
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rp => rp.RolId,
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(ru, rp) => rp.PermisoId)
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.Join(_context.Permisos.AsNoTracking(),
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permisoId => permisoId,
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p => p.Id,
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(permisoId, p) => p.Codigo)
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.AnyAsync(codigo => codigo == permissionCode);
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}
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}
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