我使用this website为Angular 2/4使用.net核心api身份验证。
注册有效,但我在身份验证(登录)时出现了令牌错误。服务器给我这个错误:HTTP500: SERVER ERROR - The server encountered an unexpected condition that prevented it from fulfilling the request.
这是我的代码:
[AllowAnonymous]
[HttpPost]
public IActionResult Authenticate([FromBody]ApplicationUserDto applicationUserDto)
{
var appUser = _appUserService.Authenticate(applicationUserDto.Username, applicationUserDto.Password);
if (appUser == null)
return Unauthorized();
var tokenHandler = new JwtSecurityTokenHandler();
var key = Encoding.ASCII.GetBytes(_appSettings.Secret);
var tokenDescriptor = new SecurityTokenDescriptor
{
Subject = new ClaimsIdentity(new Claim[]
{
new Claim(ClaimTypes.Name, appUser.Id)
}),
Expires = DateTime.UtcNow.AddDays(7),
SigningCredentials = new SigningCredentials(new SymmetricSecurityKey(key), SecurityAlgorithms.HmacSha256Signature)
};
var token = tokenHandler.CreateToken(tokenDescriptor); //Here returns the Error
var tokenString = tokenHandler.WriteToken(token);
// return basic user info (without password) and token to store client side
return Ok(new
{
Id = appUser.Id,
Username = appUser.Username,
FirstName = appUser.FirstName,
LastName = appUser.LastName,
Token = tokenString
});
}
我不知道问题是什么。我使用网站仔细编写了代码(不是复制粘贴)。错误是什么?
谢谢!
答案 0 :(得分:1)
我找到并解决了错误。
我在项目中实现了Application Insights(.net core web api)。我已经再次要求Angular 2项目提出上述请求了。然后我去了portal.azure.com并在Application Insights的选项卡中打开。我选择了失败的请求以查看更详细的信息。 Anther the Exception标题说:
System.ArgumentOutOfRangeException at MyProject.Controllers.ApplicationUsersController.Authenticate
。
然后我点击了它以获取更多细节,在那里我发现了问题:
IDX10603: The algorithm: 'http://www.w3.org/2001/04/xmldsig-more#hmac-sha256' requires the SecurityKey.KeySize to be greater than '128' bits. KeySize reported: '64'. Parameter name: key.KeySize
密钥保存在appsettings.json文件中。所以我只需要提供更长的密钥。
现在它没有问题!