Jak dostosować uwierzytelnianie do własnego zestawu tabel w asp.net web api 2?

Zakładając, że Twoja tabela nazywa się AppUser, przekonwertuj swój obiekt domeny AppUser na IUser(using Microsoft.AspNet.Identity) w ten sposób

using Microsoft.AspNet.Identity;
public class AppUser : IUser
{
    //Existing database fields
    public long AppUserId { get; set; }
    public string AppUserName { get; set; }
    public string AppPassword { get; set; }

    public AppUser()
    {
        this.Id = Guid.NewGuid().ToString();  
    }

    [Ignore]
    public virtual string Id { get; set; }         
    [Ignore]
    public string UserName
    {
        get
        {
            return AppUserName;
        }
        set
        {
            AppUserName = value;
        }
    }
}

Zaimplementuj UserStore obiekt w ten sposób

using Microsoft.AspNet.Identity;
public class UserStoreService 
         : IUserStore<AppUser>, IUserPasswordStore<AppUser>
{
    CompanyDbContext context = new CompanyDbContext();

    public Task CreateAsync(AppUser user)
    {            
        throw new NotImplementedException();
    }

    public Task DeleteAsync(AppUser user)
    {
        throw new NotImplementedException();
    }

    public Task<AppUser> FindByIdAsync(string userId)
    {
        throw new NotImplementedException();
    }

    public Task<AppUser> FindByNameAsync(string userName)
    {
        Task<AppUser> task = context.AppUsers.Where(
                              apu => apu.AppUserName == userName)
                              .FirstOrDefaultAsync();

        return task;
    }

    public Task UpdateAsync(AppUser user)
    {
        throw new NotImplementedException();
    }

    public void Dispose()
    {
        context.Dispose();
    }

    public Task<string> GetPasswordHashAsync(AppUser user)
    {
        if (user == null)
        {
            throw new ArgumentNullException("user");
        }

        return Task.FromResult(user.AppPassword);
    }

    public Task<bool> HasPasswordAsync(AppUser user)
    {
        return Task.FromResult(user.AppPassword != null);
    }

    public Task SetPasswordHashAsync(AppUser user, string passwordHash)
    {
        throw new NotImplementedException();
    }

}

Jeśli masz własne hashowanie niestandardowego hasła, musisz również zaimplementować IPasswordHasher. Poniżej przykład, w którym nie ma hashowania hasła(o nie!)

using Microsoft.AspNet.Identity;
public class MyPasswordHasher : IPasswordHasher
{
    public string HashPassword(string password)
    {
        return password;
    }

    public PasswordVerificationResult VerifyHashedPassword
                  (string hashedPassword, string providedPassword)
    {
        if (hashedPassword == HashPassword(providedPassword))
            return PasswordVerificationResult.Success;
        else
            return PasswordVerificationResult.Failed;
    }
}

W Startupie.Auth.CS replace

UserManagerFactory = () => 
     new UserManager<IdentityUser>(new UserStore<IdentityUser>());

Z

    UserManagerFactory = () => 
     new UserManager<AppUser>(new UserStoreService()) { PasswordHasher = new MyPasswordHasher() };

W ApplicationOAuthProvider.cs zastąp IdentityUser na AppUser

W AccountController.cs, zastąp IdentityUser z AppUser i usuń wszystkie zewnętrzne metody uwierzytelniania, takie jak GetManageInfo i RegisterExternal itp.