我正在使用IdentityModel.Tokens.Jwt在WindowsService中生成JWT令牌,如下所示:
private JwtSecurityToken GetJwtToken()
{
var symmetricSecurityKey = new SymmetricSecurityKey(Convert.FromBase64String(_secretKey));
var signingCredentials = new SigningCredentials(symmetricSecurityKey, SecurityAlgorithms.HmacSha256Signature);
return new JwtSecurityToken(
"myIssuer",
expires: DateTime.Now.AddMinutes(15),
signingCredentials: signingCredentials
);
}
然后,我用JwtSecurityTokenHandler
编写该令牌,并在请求中将其发送到WebAPI控制器:
//some code...
// _tokenHandler below is a JwtSecurityTokenHandler
_httpClient.DefaultRequestHeaders.Add("jwtToken", _tokenHandler.WriteToken(GetJwtToken()));
HttpResponseMessage response = await _httpClient.GetAsync(url);
//...
在API方面,我正在尝试验证令牌:
public bool Authenticate(string token)
{
if (string.IsNullOrEmpty(token))
throw new ArgumentEmptyException(nameof(token));
TokenValidationParameters parameters = new TokenValidationParameters
{
ValidIssuer = "myIssuer",
ValidateIssuer = true,
ValidateLifetime = true,
IssuerSigningKey = new SymmetricSecurityKey(Convert.FromBase64String(SecretKey))
};
try
{
new JwtSecurityTokenHandler().ValidateToken(token, parameters, out SecurityToken validatedToken);
return true;
}
catch (SecurityTokenException)
{
return false;
}
}
}
这将引发以下错误:
IDX12741:JWT:'[PII隐藏。有关更多详细信息,请参见 https://aka.ms/IdentityModel/PII.]'必须包含三个网段(JWS)或 五段(JWE)。'
还有一个生成的令牌的示例,实际上看起来像是一次发送两个令牌,这让我感到困惑:
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eyJhbGciOiJodHRwOi8vd3d3LnczLm9yZy8yMDAxLzA0L3htbGRzaWctbW9yZSNobWFjLXNoYTI1NiIsInR5cCI6IkpXVCJ9.eyJleHAiOjE1Nzk2OTc3ODAsImlzcyI6Im15SXNzdWVyIn0.Noc3lC0h_ryH6axlQJ2Kk2a8wcp5eQ0QhBqidfjuujo
有什么建议吗?
答案 0 :(得分:1)
JWT令牌正确生成,问题出在HttpClient的共享实例中。每个连续的调用都会添加到DefaultRequestHeaders jwtToken值中。
当我添加逻辑以在添加新令牌之前重置值时,它起作用:
_httpClient.DefaultRequestHeaders.Remove("jwtToken"); // new
_httpClient.DefaultRequestHeaders.Add("jwtToken", _tokenHandler.WriteToken(GetJwtToken()));