长时间尝试刷新时,JWT 刷新令牌无法正常工作?
我在有效用户登录时创建 JWT 访问令牌和刷新令牌,访问令牌的生命周期很短,刷新令牌的过期时间为 7 天,当我尝试使用刷新令牌在过期后生成新的访问令牌时,它工作正常并使用新的访问令牌和刷新令牌进行响应,但经过很长时间(例如 3 或 4 小时后),当我尝试时它不起作用。我还在刷新令牌方法代码中发表了评论,其中出现错误。
请参阅我的代码:
控制器:
public IActionResult RefreshToken([FromBody] RefreshTokenRequest request)
{
try
{
if (string.IsNullOrWhiteSpace(request.RefreshToken))
{
return Unauthorized();
}
var jwtResult = _jwtAuthManager.Refresh(request.RefreshToken, request.AccessToken, DateTime.Now);
var userName = jwtResult.RefreshToken.UserName;
var role = _userService.GetUserRole(userName);
var claims = new[]
{
new Claim(ClaimTypes.Role, role)
};
_logger.LogInformation($"User [{userName}] has refreshed JWT Token");
if (jwtResult == null)
{
return BadRequest();
}
return Ok(new
{
UserName = userName,
Role= role,
AccessToken = jwtResult.AccessToken,
RefreshToken = jwtResult.RefreshToken.TokenString,
Status = "Success",
Message = "New access token generated successfully"
});
}
catch (SecurityTokenException e)
{
return Unauthorized(e.Message); // return 401 so that the client side can redirect the user to login page
}
}
生成令牌方法:
public JwtAuthResult GenerateTokens(string username, Claim[] claims, DateTime now)
{
var shouldAddAudienceClaim = string.IsNullOrWhiteSpace(claims?.FirstOrDefault(x => x.Type == JwtRegisteredClaimNames.Aud)?.Value);
var jwtToken = new JwtSecurityToken(
_jwtTokenConfig.Issuer,
shouldAddAudienceClaim ? _jwtTokenConfig.Audience : string.Empty,
claims,
expires: now.AddMinutes(_jwtTokenConfig.AccessTokenExpiration),
signingCredentials: new SigningCredentials(new SymmetricSecurityKey(_secret), SecurityAlgorithms.HmacSha256Signature));
var accessToken = new JwtSecurityTokenHandler().WriteToken(jwtToken);
var refreshToken = new RefreshToken
{
UserName = username,
TokenString = GenerateRefreshTokenString(),
ExpireAt = now.AddMinutes(_jwtTokenConfig.RefreshTokenExpiration),
};
_usersRefreshTokens.AddOrUpdate(refreshToken.TokenString, refreshToken, (s, t) => refreshToken);
return new JwtAuthResult
{
AccessToken = accessToken,
RefreshToken = refreshToken
};
}
刷新令牌方法:
public JwtAuthResult Refresh(string refreshToken, string accessToken, DateTime now)
{
var (principal, jwtToken) = DecodeJwtToken(accessToken);
if (jwtToken == null || !jwtToken.Header.Alg.Equals(SecurityAlgorithms.HmacSha256Signature))
{
throw new SecurityTokenException("Invalid token");
}
var userName = principal.Identity?.Name;
if (!_usersRefreshTokens.TryGetValue(refreshToken, out var existingRefreshToken))
{
throw new SecurityTokenException("Invalid token not found");
}
var result = existingRefreshToken;
if (existingRefreshToken.UserName != userName || existingRefreshToken.ExpireAt <= now) //After 3 or 4 hours I am getting error in this condition.
{
throw new SecurityTokenException("Invalid UserName or refresh token expired");
}
return GenerateTokens(userName, principal.Claims.ToArray(), now); // need to recover the original claims
}
声明主体方法:
public (ClaimsPrincipal, JwtSecurityToken) DecodeJwtToken(string token)
{
if (string.IsNullOrWhiteSpace(token))
{
throw new SecurityTokenException("Invalid token");
}
var principal = new JwtSecurityTokenHandler()
.ValidateToken(token,
new TokenValidationParameters
{
ValidateIssuer = true,
ValidIssuer = _jwtTokenConfig.Issuer,
ValidateIssuerSigningKey = true,
IssuerSigningKey = new SymmetricSecurityKey(_secret),
ValidAudience = _jwtTokenConfig.Audience,
ValidateAudience = true,
ValidateLifetime = false,
ClockSkew = TimeSpan.FromMinutes(1)
},
out var validatedToken);
return (principal, validatedToken as JwtSecurityToken);
}
I am create a JWT access token and refresh token on login of valid user, access token is short lived and refresh token is with expiration time of 7 days, When I am trying to generate new access token after expiry using refresh token it is working fine and response with new access token and refresh token but after long time such as after 3 or 4 hours when I am trying it is not working. I am also comment in Refresh token method code where I am getting error.
Please see my code:
Controller:
public IActionResult RefreshToken([FromBody] RefreshTokenRequest request)
{
try
{
if (string.IsNullOrWhiteSpace(request.RefreshToken))
{
return Unauthorized();
}
var jwtResult = _jwtAuthManager.Refresh(request.RefreshToken, request.AccessToken, DateTime.Now);
var userName = jwtResult.RefreshToken.UserName;
var role = _userService.GetUserRole(userName);
var claims = new[]
{
new Claim(ClaimTypes.Role, role)
};
_logger.LogInformation(quot;User [{userName}] has refreshed JWT Token");
if (jwtResult == null)
{
return BadRequest();
}
return Ok(new
{
UserName = userName,
Role= role,
AccessToken = jwtResult.AccessToken,
RefreshToken = jwtResult.RefreshToken.TokenString,
Status = "Success",
Message = "New access token generated successfully"
});
}
catch (SecurityTokenException e)
{
return Unauthorized(e.Message); // return 401 so that the client side can redirect the user to login page
}
}
Generate token method:
public JwtAuthResult GenerateTokens(string username, Claim[] claims, DateTime now)
{
var shouldAddAudienceClaim = string.IsNullOrWhiteSpace(claims?.FirstOrDefault(x => x.Type == JwtRegisteredClaimNames.Aud)?.Value);
var jwtToken = new JwtSecurityToken(
_jwtTokenConfig.Issuer,
shouldAddAudienceClaim ? _jwtTokenConfig.Audience : string.Empty,
claims,
expires: now.AddMinutes(_jwtTokenConfig.AccessTokenExpiration),
signingCredentials: new SigningCredentials(new SymmetricSecurityKey(_secret), SecurityAlgorithms.HmacSha256Signature));
var accessToken = new JwtSecurityTokenHandler().WriteToken(jwtToken);
var refreshToken = new RefreshToken
{
UserName = username,
TokenString = GenerateRefreshTokenString(),
ExpireAt = now.AddMinutes(_jwtTokenConfig.RefreshTokenExpiration),
};
_usersRefreshTokens.AddOrUpdate(refreshToken.TokenString, refreshToken, (s, t) => refreshToken);
return new JwtAuthResult
{
AccessToken = accessToken,
RefreshToken = refreshToken
};
}
Refresh Token Method:
public JwtAuthResult Refresh(string refreshToken, string accessToken, DateTime now)
{
var (principal, jwtToken) = DecodeJwtToken(accessToken);
if (jwtToken == null || !jwtToken.Header.Alg.Equals(SecurityAlgorithms.HmacSha256Signature))
{
throw new SecurityTokenException("Invalid token");
}
var userName = principal.Identity?.Name;
if (!_usersRefreshTokens.TryGetValue(refreshToken, out var existingRefreshToken))
{
throw new SecurityTokenException("Invalid token not found");
}
var result = existingRefreshToken;
if (existingRefreshToken.UserName != userName || existingRefreshToken.ExpireAt <= now) //After 3 or 4 hours I am getting error in this condition.
{
throw new SecurityTokenException("Invalid UserName or refresh token expired");
}
return GenerateTokens(userName, principal.Claims.ToArray(), now); // need to recover the original claims
}
Claim Principal Method:
public (ClaimsPrincipal, JwtSecurityToken) DecodeJwtToken(string token)
{
if (string.IsNullOrWhiteSpace(token))
{
throw new SecurityTokenException("Invalid token");
}
var principal = new JwtSecurityTokenHandler()
.ValidateToken(token,
new TokenValidationParameters
{
ValidateIssuer = true,
ValidIssuer = _jwtTokenConfig.Issuer,
ValidateIssuerSigningKey = true,
IssuerSigningKey = new SymmetricSecurityKey(_secret),
ValidAudience = _jwtTokenConfig.Audience,
ValidateAudience = true,
ValidateLifetime = false,
ClockSkew = TimeSpan.FromMinutes(1)
},
out var validatedToken);
return (principal, validatedToken as JwtSecurityToken);
}
如果你对这篇内容有疑问,欢迎到本站社区发帖提问 参与讨论,获取更多帮助,或者扫码二维码加入 Web 技术交流群。

绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱,如果其他用户或者作者回复了您的评论,将不能在第一时间通知您!
发布评论