使用没有密码的IdentityServer3生成访问令牌

Question

如何在没有密码的情况下从服务器手动生成access_token？我想让超级管理员以用户身份登录并查看他们的问题并通过他们的眼睛看到问题，所以我需要用户 access_token。我已经看到这个但在 IdentityServer3 中没有帮助我。

Answer 1

首先创建一个名为 loginBy 的自定义授权

    public class LoginByGrant : ICustomGrantValidator
    {
        private readonly ApplicationUserManager _userManager;

        public string GrantType => "loginBy";

        public LoginByGrant(ApplicationUserManager userManager)
        {
            _userManager = userManager;
        }     

        public async Task<CustomGrantValidationResult> ValidateAsync(ValidatedTokenRequest request)
        {

            var userId = Guid.Parse(request.Raw.Get("user_id"));

            var user = await _userManager.FindByIdAsync(userId);

            if (user == null)
                return await Task.FromResult<CustomGrantValidationResult>(new CustomGrantValidationResult("user not exist"));

            var userClaims = await _userManager.GetClaimsAsync(user.Id);

            return
                await Task.FromResult<CustomGrantValidationResult>(new CustomGrantValidationResult(user.Id.ToString(), "custom", userClaims));

        }
    }

然后在身份启动中添加此自定义授权 class

    factory.CustomGrantValidators.Add(
                        new Registration<ICustomGrantValidator>(resolver => new LoginByGrant(ApplicaionUserManager)));

最后在你的 api

      public async Task<IHttpActionResult> LoginBy(Guid userId)
       {
        var tokenClient = new TokenClient(Constants.TokenEndPoint, Constants.ClientId, Constants.Secret);

        var payload = new { user_id = userId.ToString() };

        var result = await tokenClient.RequestCustomGrantAsync("loginBy", "customScope", payload);

        if (result.IsError)
            return Ok(result.Json);

        return Ok(new { access_token = result.AccessToken, expires_in = result.ExpiresIn});
       }

这是针对 identityServer3 但对于 identityServer4 非常相似

使用没有密码的IdentityServer3生成访问令牌

Generate access token with IdentityServer3 without password

c#

asp.net

asp.net-web-api

identityserver3