/// <summary>
/// Cria um Token de Acesso válido para o sistema, com identificação do usuário
/// </summary>
public static string GenerateToken(UserIdentification userIdentification)
{
string guid = Guid.NewGuid().ToString("N");
string userIdentStr = userIdentification.GetTokenIdentification();
ClaimsIdentity identity = new ClaimsIdentity(
new GenericIdentity(userIdentStr, Constants.GENERIC_IDENTITY_TYPE),
new[] {
new Claim(JwtRegisteredClaimNames.Jti, guid),
new Claim(JwtRegisteredClaimNames.UniqueName, userIdentStr)
}
);
DateTime created = DateTime.Now;
DateTime expiration = created +
TimeSpan.FromSeconds(TOKEN_SECONDS);
JwtSecurityTokenHandler handler = new JwtSecurityTokenHandler();
SecurityToken securityToken = handler.CreateToken(new SecurityTokenDescriptor
{
Issuer = ISSUER,
Audience = AUDIENCE,
SigningCredentials = SigningConfigurations.SigningCredentials,
Subject = identity,
NotBefore = created,
Expires = expiration
});
return(handler.WriteToken(securityToken));
}
/// <summary>
/// Extrai o identificador do usuário do contexto de autenticação
/// </summary>
public static UserIdentification GetUserIdentification(ClaimsPrincipal user)
{
if (!string.IsNullOrEmpty(user.Identity.Name))
{
return(new UserIdentification(user.Identity.Name));
}
return(UserIdentification.NoUser());
}
