有没有办法在 Api 控制器中获取当前用户

Question

我正在使用 asp.net 授权使用 Angular 客户端 js 登录，我需要让当前用户登录

我需要让当前用户在我的记录器中保存任何操作 Table， httpcontext.session.current 为 null ，是否有另一种方法可以在会话中保存登录用户或其他任何可以随时获取的方法

public class ApplicationOAuthProvider : OAuthAuthorizationServerProvider
{
    private readonly string _publicClientId;

    static ERPV02_03Entities db;

    public ApplicationOAuthProvider(string publicClientId)
    {
        if (publicClientId == null)
        {
            throw new ArgumentNullException("publicClientId");
        }
        db = SingleTonConText.Instance;

       _publicClientId = publicClientId;
    }

    public override async Task GrantResourceOwnerCredentials(OAuthGrantResourceOwnerCredentialsContext context)
    {
        var userManager = context.OwinContext.GetUserManager<ApplicationUserManager>();

        ApplicationUser user = await userManager.FindAsync(context.UserName, context.Password);

        if (user == null)
        {
            context.SetError("invalid_grant", "The user name or password is incorrect.");
            return;
        }

        ClaimsIdentity oAuthIdentity = await user.GenerateUserIdentityAsync(userManager,
        OAuthDefaults.AuthenticationType);
        ClaimsIdentity cookiesIdentity = await user.GenerateUserIdentityAsync(userManager,
        CookieAuthenticationDefaults.AuthenticationType);

        AuthenticationProperties properties = CreateProperties(user.UserName);
        AuthenticationTicket ticket = new AuthenticationTicket(oAuthIdentity, properties);
        context.Validated(ticket);
        context.Request.Context.Authentication.SignIn(cookiesIdentity);



    }

    public  override Task TokenEndpoint(OAuthTokenEndpointContext context)
    {
        foreach (KeyValuePair<string, string> property in context.Properties.Dictionary)
        {
            context.AdditionalResponseParameters.Add(property.Key, property.Value);

        }
        var data= Task.FromResult<object>(null); 
        return data;
    }

    public override Task ValidateClientAuthentication(OAuthValidateClientAuthenticationContext context)
    {
        // Resourcee owner password credentials does not provide a client ID.
        if (context.ClientId == null)
        {
            context.Validated();
        }

        return Task.FromResult<object>(null);
    }

    public override Task ValidateClientRedirectUri(OAuthValidateClientRedirectUriContext context)
    {
        if (context.ClientId == _publicClientId)
        {
            Uri expectedRootUri = new Uri(context.Request.Uri, "/");

            if (expectedRootUri.AbsoluteUri == context.RedirectUri)
            {
                context.Validated();    
    }
        }

        return Task.FromResult<object>(null);
    }

    private static View_Emps GetUserInfo(string username)
    {
        var user = new View_Emps();
        try
        {
user = db.View_Emps.FirstOrDefault(p => 
                                       p.Emp_UserName == username);
    HttpContext.Current.Session.Add("user", user);


        }
        catch (Exception e)
        {
            throw e;
        }


        return user; 
    }

    public static AuthenticationProperties CreateProperties(string userName)
    {
        var user = GetUserInfo(userName);
        JavaScriptSerializer js = new JavaScriptSerializer();
            var res = js.Serialize(user);
        IDictionary<string, string> data = new Dictionary<string, string>
        {
            { "User", res }
        };
return new AuthenticationProperties(data);}}


public  void SaveLog( T Obj, string Operation)
    {



        string hostName = Dns.GetHostName(); // Retrive the Name of HOST  IpAddress
        string myIP = Dns.GetHostEntry(hostName).AddressList[0].ToString();

        var user = HttpContext.Current.Session["user"] as View_Emps;
        MyLogger.Data =  new JavaScriptSerializer().Serialize(Obj);
        MyLogger.OperationType = Operation;
        MyLogger.TableName = typeof(T).Name;
        MyLogger.DateTime = DateTime.Now;
        MyLogger.User_ID = user.Emp_ID;
        MyLogger.IP_Address = myIP;
        db.Loggers.Add(MyLogger);
        Commit();



    }

Answer 1

您可以从 IPrincipal 获取 Api Controller 中的当前登录用户，您不需要像

那样为它引用任何名称空间

...
var user = User;   //<= "User" comes from System.Security.Principal.IPrincipal
...

您还可以从 IPrincipal 中获取其他属性，例如

身份验证类型
IsAuthenticated
姓名

从此类用户的身份来看，

var authType = User.Identity.AuthenticationType;
var isAuthenticated = User.Identity.IsAuthenticated;
var name = User.Identity.Name;

编辑：

您可以在 GrantResourceOwnerCredentials 方法中添加您的自定义字段作为您身份的声明，例如，

...
ClaimsIdentity oAuthIdentity = await user.GenerateUserIdentityAsync(userManager,
               OAuthDefaults.AuthenticationType);

oAuthIdentity.AddClaim(new Claim("UserId", user.Id));   //<= The UserId add here as claim
oAuthIdentity.AddClaim(new Claim("UserName", user.UserName));  //<= The UserName add here as claim

ClaimsIdentity cookiesIdentity = await user.GenerateUserIdentityAsync(userManager,
                CookieAuthenticationDefaults.AuthenticationType);
...

然后在 Api 控制器操作方法中，您可以获得此 UserId，例如，

var userId = ((ClaimsIdentity)User.Identity).FindFirst("UserId");
var userName = ((ClaimsIdentity)User.Identity).FindFirst("UserName");

编辑 1：

这里我从声明中得到了 UserId 和 UserName。

并且从 angular js HTTP 你可以像

module.run(function($http) {
  $http.defaults.headers.common.Authorization = 'bearer TGAf8ViNUtzb9RP9OCBXHN4Ewm0dQbTMb6x4wJMgi4Wk8pq-QEQLIhp_W1A-9jQa7Rlqa60vsQ2ubbjUL0wGosEwaHFDlbdkQqXbOP_VlBJMxN2KnGQZnmvWZvpLPqMF-jpWzPDvBwtVHnh3AjLviPX0gPQjxZAC1ujIeB0p-QZ8yE1VCnLa8Xql01XDXlLVBCzk1UOqt_er-Gx6pL8SemayY8dqVVUgSZTYhcceLLuWQ-Cy3QATJmoJ41K-7ktAeUTz5H7V3ImlC_b8qnnN8sj7k7WRT51q27pUO4-bzJzkD4LGVvDUqaeAhBEqKyS9TkpMIFbRDMol5ZiJcp2vTunOOYP42Mw7GJv09ctoXegKkWo1LWDsSDxeWP5KQed_VGX193pZvQtvz06g2iyXwuP8Q6NaJcXTF43-M9p2HWgGuXT531YXv59euaWevj1AMJkazlZ61uzYi7KGLHKgCwzAMXLKwzBGK4QP0C4tqonowSdTttH93LBOJHjrDepk';
});

通过在 angular 端使用上述代码，您的请求将通过 Http

为每个请求添加身份验证令牌

详细了解 $http

编辑 2：

将这些数据添加为 GrantResourceOwnerCredentials 中的声明，您希望在您的工作单元存储库中结转，例如，

oAuthIdentity.AddClaim(new Claim("Id", user.Id));
oAuthIdentity.AddClaim(new Claim("UserName", user.UserName));
oAuthIdentity.AddClaim(new Claim("Email", user.Email));
oAuthIdentity.AddClaim(new Claim("PhoneNumber", user.PhoneNumber));

然后在控制器方法中读取这些数据，例如

ClaimsPrincipal principal = Request.GetRequestContext().Principal as ClaimsPrincipal;
var claims = principal.Claims.Select(x => new { type = x.Type, value = x.Value });

var id = claims.Where(x => x.type == "Id").FirstOrDefault().value;
var userName = claims.Where(x => x.type == "UserName").FirstOrDefault().value;
var email = claims.Where(x => x.type == "Email").FirstOrDefault().value;
var phoneNumber = claims.Where(x => x.type == "PhoneNumber").FirstOrDefault().value;

ApplicationUser applicationUser = new ApplicationUser  //This model is pre generated by web api project and reside in `Models` folder
{
    Id = id,
    UserName = userName,
    Email = email,
    PhoneNumber = phoneNumber
 };

现在您可以自由使用此对象 applicationUser 来传入您的工作单元存储库。

Answer 2

查看此问题 Is it possible to set localStorage or Session variable in asp.net page and read it in javascript on the other page?

public  void SaveLog( T Obj, string Operation)
    {

        string hostName = Dns.GetHostName(); // Retrive the Name of HOST  IpAddress
        string myIP = Dns.GetHostEntry(hostName).AddressList[0].ToString();

        var user = HttpContext.Current.Session["user"] as View_Emps;

// 而不是这个 .. 你可以在本地存储中，并在注销或超时后将其删除 // timer

        MyLogger.Data =  new JavaScriptSerializer().Serialize(Obj);
        MyLogger.OperationType = Operation;
        MyLogger.TableName = typeof(T).Name;
        MyLogger.DateTime = DateTime.Now;
        MyLogger.User_ID = user.Emp_ID;
        MyLogger.IP_Address = myIP;
        db.Loggers.Add(MyLogger);
        Commit();


    }

Answer 3

您不能在 api 调用中使用会话，每次您需要对用户进行身份验证时，您必须发送用户的令牌

您可以阅读有关 JWT 的身份验证

Answer 4

var UserName = User.Identity.Name;
var UserId = ((ClaimsIdentity)User.Identity).Claims.FirstOrDefault().Value;

这种方式效果很好，但我不得不在 header 中发送令牌

Answer 5

在 MVC 控制器中：

var user = await _userManager.GetUserAsync(User);

在 API 控制器中，使用这个：

var user = await _userManager.FindByNameAsync(User.Identity.Name);

确保用户已通过 身份验证，并在控制器中使用 授权属性 ，并在您的页面开头：

[Authorize]

Answer 6

[Authorize]
[HttpGet("GetCurrentUser")]
public async Task<ActionResult<string>> GetCurrentUser()
{
    var UserName = User.Identity.Name;
    var user = await _userManager.GetUserAsync(User);
    return Ok("Current User: " + user);
}

用->注释控制器或端点[Authorize]
获取当前登录用户的方法有两种。
- 使用：User.Identity.Name
- 将UseManagerclass注入controller，然后就可以调用GetUserAsync(User)方法(ClaimsPrincipal: User)

有没有办法在 Api 控制器中获取当前用户

Is there a way to get Current User in Api Controller

c#

asp.net-web-api

asp.net-apicontroller