我正在设置一个 asp.net web api 2 应用程序,但我在使用自定义 Identity.UserManager 验证用户密码时遇到了问题。当我尝试验证用户的散列密码时,它总是返回失败!即使我知道我提供了正确的密码。在这里,我试图对用户进行身份验证并将 token 返回给该用户。用户数据表 (DVUsers) 存储在 MySQL 数据库中。我怀疑我的问题是密码哈希在 mysql 中的存储方式。
从一开始,我的授权服务器提供者:
public class AuthServerProvider : OAuthAuthorizationServerProvider
{
public override async Task ValidateClientAuthentication(OAuthValidateClientAuthenticationContext context)
{
context.Validated();
}
public override async Task GrantResourceOwnerCredentials(OAuthGrantResourceOwnerCredentialsContext context)
{
context.OwinContext.Response.Headers.Add("Access-Control-Allow-Origin", new[] { "*" });
try
{
AuthContext _ctx = new AuthContext();
DVUserManager userManager = new DVUserManager(_ctx);
AuthRepo _repo = new AuthRepo(userManager, _ctx);
DVUser user = await _repo.FindUser(context.UserName, context.Password);
if (user == null)
{
context.SetError("invalid_grant", "The user name or password is incorrect.");
return;
}
var identity = new ClaimsIdentity(context.Options.AuthenticationType);
identity.AddClaim(new Claim("sub", context.UserName));
identity.AddClaim(new Claim("role", "user"));
context.Validated(identity);
}
catch (Exception ex)
{
context.SetError("invalid_grant", "message");
}
}
}
现在这是我的 AuthRepo 类。 VerifyHashedPsssword 总是在 FindUser 方法中返回失败。
public class AuthRepo : IDisposable
{
private AuthContext _ctx;
private DVUserManager _userManager;
public AuthRepo(DVUserManager userManager, AuthContext ctx)
{
_ctx = ctx;
_userManager = userManager;
}
public async Task<IdentityResult> RegisterUser(DVUser user)
{
DVUser iuser = new DVUser { UserName = user.UserName};
var result = await _userManager.CreateAsync(iuser, user.UserName);
return result;
}
public async Task<DVUser> FindUser(string userName, string Password)
{
//Find the user works fine, it finds the correct user
DVUser user = await _userManager.FindByNameAsync(userName);
//compare passwords. VerifyHasedPAssword ALWAYS is returning failed
PasswordVerificationResult result = _userManager.PasswordHasher.VerifyHashedPassword(user.Password, Password);
if (result == PasswordVerificationResult.Success) { return user; }
else { return null; }
}
public void Dispose()
{
_ctx.Dispose();
_userManager.Dispose();
}
}
您可能还想看看我的辅助类(class)。
public class AuthContext : IdentityDbContext<IdentityUser>
{
public AuthContext() : base("localhost") //name of the data connection to use
{
}
public DbSet<DVUser> DVUsers { get; set; }
}
我的自定义用户管理器
public class DVUserManager : UserManager<DVUser>
{
public DVUserManager(AuthContext ctx) : base(new DVUserStore(ctx))
{
PasswordValidator = new MinimumLengthValidator(4);
}
}
这里是实现IUser的DVUser
public class DVUser : IUser
{
public string Id
{
get; set;
}
public string UserName
{
get; set;
}
public string Password { get; set; }
public int DVClientID { get; set; }
}
最后是我的客户 UserStore
public class DVUserStore : IUserStore<DVUser>, IUserPasswordStore<DVUser>
{
AuthContext _context;
public DVUserStore(AuthContext context)
{
_context = context;
}
public Task CreateAsync(DVUser user)
{
user.Id = Guid.NewGuid().ToString();
_context.DVUsers.Add(user);
return _context.SaveChangesAsync();
}
public Task DeleteAsync(DVUser user)
{
throw new NotImplementedException();
}
public void Dispose()
{
_context.Dispose();
}
public Task<DVUser> FindByIdAsync(string userId)
{
throw new NotImplementedException();
}
public Task<DVUser> FindByNameAsync(string userName)
{
Task<DVUser> task = _context.DVUsers.Where(
apu => apu.UserName == userName)
.FirstOrDefaultAsync();
return task;
}
public Task<string> GetPasswordHashAsync(DVUser user)
{
if (user == null)
{
throw new ArgumentNullException("user");
}
return Task.FromResult(user.Password);
}
public Task<bool> HasPasswordAsync(DVUser user)
{
return Task.FromResult(user.Password != null);
}
public Task SetPasswordHashAsync(DVUser user, string passwordHash)
{
return Task.FromResult(user.Password = passwordHash);
}
public Task UpdateAsync(DVUser user)
{
throw new NotImplementedException();
}
}
MySQL 表,DVUsers 看起来像这样。 DVUsers Table, UTF8 encoding
这是 DVUsers 中的数据。有一个用户 DVUsers table data
感谢您的帮助!
最佳答案
我找到了解决方案!有两个问题。首先,我是个白痴。在这一行查看我在 AuthRepo 类中的注册用户方法:
var result = await _userManager.CreateAsync(iuser, user.UserName);
我将用户密码设置为 USERNAME 而不是我的表单发送的密码...天哪..
第二个问题!我发现它仍然没有用。我发现如果我将密码列数据类型设置为 Binary(68),密码哈希将被正确存储。终于成功了。我希望我能帮助别人!
关于c# - ASP.net Identity UserManager 不验证密码,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/36183360/