SecurityTokenExpiredException：IDX10223：生命周期验证失败。令牌已过期。ValidTo：'System.DateTime'，当前时间：'System.DateTime'

Question

在使用 RestAPI 的 ASP.NET Core 5 项目中，我使用带有令牌和刷新令牌的 JWT Bearer。我这样配置启动：

var jwtSecretKey = Configuration.GetValue<string>("Jwt:Key");
var key = Encoding.UTF8.GetBytes(jwtSecretKey);

var tokenValidationParameters = new TokenValidationParameters
{
    SaveSigninToken = true,
    ValidateActor = true,
    ValidateIssuer = true,
    ValidateAudience = true,
    ValidateLifetime = true,
    ValidateIssuerSigningKey = true,
    ValidIssuer = Configuration["Jwt:Issuer"],
    ValidAudience = Configuration["Jwt:Audience"],
    IssuerSigningKey = new SymmetricSecurityKey(key),
    // set clockskew to zero so tokens expire exactly at token expiration time (instead of 5 minutes later)
    ClockSkew = TimeSpan.Zero
};

services.AddAuthentication(options =>
{
    options.DefaultScheme = JwtBearerDefaults.AuthenticationScheme;
    options.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
    options.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
})
.AddJwtBearer(options =>
{
    options.RequireHttpsMetadata = false;
    options.SaveToken = true;
    options.TokenValidationParameters = tokenValidationParameters;
});

为了生成令牌，我使用了以下代码（需要注意的是我使用了UTC日期）：

string validIssuer = _configuration["Jwt:Issuer"];
string validAudience = _configuration["Jwt:Audience"];
var jwtSecretKey = _configuration.GetValue<string>("Jwt:Key");
var issuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(jwtSecretKey));
var accessTimeout = _configuration.GetValue<int>("Jwt:MinutosExpiracionTokenAcceso");

DateTime fechaHoy = DateTime.UtcNow;
DateTime fechaExpiracionToken = DateTime.UtcNow.AddMinutes(accessTimeout);

var userRoles = await _userManager.GetRolesAsync(user);

var claims = new List<Claim>
{
    new Claim(ClaimTypes.Sid, user.Id),
    new Claim(JwtRegisteredClaimNames.Jti, Guid.NewGuid().ToString()) // (JWT ID) Unique Identifier for JWT, can be used to prevent the JWT from being replayed. Is best suited for refresh tokens
};

foreach (var userRole in userRoles)
{
    claims.Add(new Claim(ClaimTypes.Role, userRole));
}

var token = new JwtSecurityToken(
    validIssuer,
    validAudience,
    claims,
    fechaHoy,
    fechaExpiracionToken,
    new SigningCredentials(issuerSigningKey, SecurityAlgorithms.HmacSha256)
);

var refreshTimeout = _configuration.GetValue<int>("Jwt:MinutosExpiracionTokenAutorizacion");

var refreshToken = new RefreshToken()
{
    JwtId = token.Id,
    IsUsed = false,
    UserId = user.Id,
    AddedDate = DateTime.UtcNow,
    ExpiryDate = DateTime.UtcNow.AddMinutes(refreshTimeout),
    IsRevoked = false,
    Token = RandomString(25) + Guid.NewGuid()
};

await _unitOfWork.GetRepository<RefreshToken>().AddAsync(refreshToken);
await _unitOfWork.SaveChangesAsync();

var tokensDto = new TokensResponseDto
{
    Token = new JwtSecurityTokenHandler().WriteToken(token),
    RefreshToken = refreshToken.Token
};

return tokensDto;

我在验证令牌时遇到问题（_tokenValidationParameters 与启动中使用的相同）：

var jwtTokenHandler = new JwtSecurityTokenHandler();
ClaimsPrincipal principal = null;
SecurityToken validatedToken = null;

principal = jwtTokenHandler.ValidateToken(tokenRequest.Token, _tokenValidationParameters, out validatedToken);

无论我是否使用本地时间（例如 DateTime.Now 而不是 UTC），它都会引发没有特定日期的上述异常。

我尝试在启动时在 TokenValidationParameters 中添加 LifetimeValidator，如下所示：

LifetimeValidator = (DateTime? notBefore, 
                     DateTime? expires, 
                     SecurityToken securityToken, 
                     TokenValidationParameters validationParameters
                    ) => 
                    {
                        if (expires != null)
                        {
                            if (DateTime.UtcNow < expires.Value.ToUniversalTime())
                            {
                                return true; // Still valid
                            }
                        }

                        return false; // Expired
                    }

但是，ValidateToken 失败并出现以下异常：

IDX10230：生命周期验证失败。委托返回 false，安全令牌：'System.IdentityModel.Tokens.Jwt.JwtSecurityToken'。

谢谢你的帮助

Answer 1

你试试：

/*
ClaimsPrincipal principal = null;
principal = jwtTokenHandler.ValidateToken(tokenRequest.Token, _tokenValidationParameters, out validatedToken);
*/

validatedToken = jwtTokenHandler.ReadJwtToken(token);

/*Your own validation logic*/