有没有办法让Api Controller中的当前用户

Question

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

我需要让当前用户在我的记录器表中保存任何操作，并且httpcontext.session.current为null，是否有另一种方法可以在会话中保存登录的用户或随时获取其他信息

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

您可以从中获取 Api 控制器中的当前登录用户，IPrincipal并且无需为其引用任何命名空间，例如，

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

您还可以从IPrincipal类似的地方获得其他属性

• 认证类型
• 已验证
• 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：

您可以添加自定义字段作为对您身份的声明GrantResourceOwnerCredentials，方法如下：

...
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，您可以获得这个 UserId，例如：

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

编辑1：

在这里我得到UserId了UserName索赔。

从 Angular js HTTP 中，您可以发送您的身份验证持有者令牌，例如

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';
});

通过在角度端使用上述代码，您的请求将通过 Http 为每个请求添加身份验证令牌

了解有关$http 的更多信息

编辑2：

将这些数据添加为声明，因为GrantResourceOwnerCredentials您希望将其转移到工作单元存储库中，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
 };

现在您可以自由地使用此对象applicationUser来传递您的工作单元存储库。