如何使用IdentityServer4的现有数据库

Question

我想将IdentityServer4与我的自定义数据库一起使用.我为管理员和学生分开了表格,两个实体都有不同的权利.

我想知道如何配置IdentityServer EF数据库以使用我现有的数据库？

任何帮助将非常感谢.

谢谢.

Answer 1

我从IdentityServer4 Quick Start示例7_JavaScriptClient开始.

首先,我创建了一个UserManager类,可以连接到我的数据源并通过用户名和密码验证用户并返回该用户对象.

public class UserManager
{
    private SecurityContext _context;

    public UserManager(SecurityContext context)
    {
        _context = context;
    }

    public  Task<User> Find(string username, string password)
    {
         ...Logic to query your custom user table(s)...
    }

    public Task<List<Claim>> GetClaimsAsync(User user)
    {
        var claims = new List<Claim>();

        //custom database call here to where you store your claims.
        var myClaims = ...Your Database call here...
        var claimGroupName = "SomeCustomName";

        if (security != null && security.Count() > 0)
        {
            foreach (var claim in security)
            {
                //Add the value from the field Security_Id from the database to the claim group "SomeCustomName".
                claims.Add(new Claim(claimGroupName , claim.SECURITY_ID));
            }
        }

        return Task.FromResult(claims);


    }
 }

用户对象

public class User
{
    public string FIRST_NAME { get; set; }
    public string LAST_NAME { get; set; }
    public string EMAIL { get; set; }

    ...Other attributes/properties...
}

其次,我使用了示例中AccountController的UserManager对象.

private readonly UserManager _userManager;

public AccountController(
        IIdentityServerInteractionService interaction,
        IClientStore clientStore,
        IHttpContextAccessor httpContextAccessor,
        UserManager userManager
        )
{
    _userManager = userManager;
 }

AccountController.Login()中的第三个HTTP Post方法我调用了UserManager.Find(用户名,密码)来返回用户.

[HttpPost]
[ValidateAntiForgeryToken]
public async Task<IActionResult> Login(LoginInputModel model)
{
     // validate username/password
     var user = await _userManager.Find(model.Username, model.Password);

     //sign the user in with a subject[user_id] and name[web_id]
     await HttpContext.Authentication.SignInAsync(user.USER_ID, user.WEB_ID, props);
}

第四,我实现了IProfileService.[我用这篇文章作为资源.]

public class ProfileService : IProfileService
{
     UserManager _myUserManager;
     private readonly ILogger<ProfileService> _logger;

     public ProfileService(ILogger<ProfileService> logger)
    {
        _logger = logger;
        _myUserManager = new UserManager(new SecurityContext());
    }

    //Called by IdentityServer Middleware.
     public async Task GetProfileDataAsync(ProfileDataRequestContext context)
    {
        var sub = context.Subject.FindFirst("sub")?.Value;
        if (sub != null)
        {
            var user = await _myUserManager.FindByNameAsync(sub);

            //Call custom function to get the claims from the custom database.
            var cp = await   getClaims(user);

            var claims = cp.Claims;

            ...Optionaly remove any claims that don't need to be sent...

            context.IssuedClaims = claims.ToList();
        }
     }

     //Called by IdentityServer Middleware.
     public async Task IsActiveAsync(IsActiveContext context)
    {
        var sub = context.Subject.GetSubjectId();
        var user = await _myUserManager.FindByNameAsync(sub);
        context.IsActive = user != null;
        return;
    }

    //Custom function to get claims from database via the UserManager.GetClaimsAsync() method.
    private async Task<ClaimsPrincipal> getClaims(User user)
    {
       var id = new ClaimsIdentity();
       //set any standard claims
       id.AddClaim(new Claim(JwtClaimTypes.PreferredUserName, user.USER_ID));
       //get custom claims from database or other source.
       id.AddClaims(await _myUserManager.GetClaimsAsync(user));

       return new ClaimsPrincipal(id);
    }
}

最后在Startup.cs中设置任何用于依赖注入的对象.

public void ConfigureServices(IServiceCollection services)
{
   builder.Services.AddTransient<IProfileService, ProfileService>();

   //This is the DbContext to our Database where the users and their claims are stored.
   services.AddTransient<SecurityContext>();
   services.AddTransient<UserManager>();

 }

这是一个类似的问题和anser.

请注意,它们还引用了IResourceOwnerPasswordValidator接口和实现,用于验证OAuth 2.0资源所有者密码凭据授权(也称为密码).与GrantTypes.ResourceOwnerPasswordAndClientCredentials或GrantTypes.ResourceOwnerPassword一起使用.