asp.net5中用户认证与授权(2)

上篇文章给大家介绍了asp.net5中用户认证与授权(1)，基础建立好了，紧接着就要创建对基础类进行操作的类，也就是实现基础类的增删改查当然，为了使用asp.net5的认证机制，这些都是通过特定的接口来实现的。

比如，对于角色来说，角色管理要实现的接口如下：

   public interface IQueryableRoleStore : IRoleStore, IDisposable where TRole : class
   {
     IQueryable Roles { get; }
   }
   public interface IRoleStore : IDisposable where TRole : class
   {
     Task CreateAsync(TRole role, CancellationToken cancellationToken);
     Task DeleteAsync(TRole role, CancellationToken cancellationToken);
     Task FindByIdAsync(string roleId, CancellationToken cancellationToken);
     Task FindByNameAsync(string normalizedRoleName, CancellationToken cancellationToken);
     Task GetNormalizedRoleNameAsync(TRole role, CancellationToken cancellationToken);
     Task GetRoleIdAsync(TRole role, CancellationToken cancellationToken);
     Task GetRoleNameAsync(TRole role, CancellationToken cancellationToken);
     Task SetNormalizedRoleNameAsync(TRole role, string normalizedName, CancellationToken cancellationToken);
     Task SetRoleNameAsync(TRole role, string roleName, CancellationToken cancellationToken);
    Task UpdateAsync(TRole role, CancellationToken cancellationToken);
   }

其实，也没什么复杂，一个是获得所有预定义角色的列表，另一个是关于角色的增删改查而已,代码如下：

 public class HDRoleStore : IQueryableRoleStore
      where TRole : HDRole, new()
    {
      /// 

      /// 存储所有预定义的角色
      /// 
      private readonly Dictionary _roles = new Dictionary();
      /// 

     /// 所有角色
     /// 
     public IQueryable Roles
     {
get
{
  if (_roles.Count == )
  {
    TRole role = new TRole();
    role.Id = "admin";
    role.Name = "管理员";
    _roles.Add(role.Id, role);
    role = new TRole();
    role.Id = "user";
    role.Name = "用户";
    _roles.Add(role.Id, role);
    role = new TRole();
    role.Id = "power";
    role.Name = "大虾";
    _roles.Add(role.Id, role);
  }
  return _roles.Values.AsQueryable();
}
     }
     public Task CreateAsync(TRole role, CancellationToken cancellationToken)
     {
_roles[role.Id] = role;
return Task.FromResult(IdentityResult.Success);
     }
     public Task DeleteAsync(TRole role, CancellationToken cancellationToken)
     {
if (role == null || !_roles.ContainsKey(role.Id))
{
  throw new InvalidOperationException("Unknown role");
}
_roles.Remove(role.Id);
return Task.FromResult(IdentityResult.Success);
     }
     public void Dispose()
     {
     }
     public Task FindByIdAsync(string roleId, CancellationToken cancellationToken)
     {
if (_roles.ContainsKey(roleId))
{
  return Task.FromResult(_roles[roleId]);
}
return Task.FromResult(null);
     }
     public Task FindByNameAsync(string normalizedRoleName, CancellationToken cancellationToken)
     {
return
   Task.FromResult(
     Roles.SingleOrDefault(r => String.Equals(r.Name, normalizedRoleName, StringComparison.OrdinalIgnoreCase)));
     }
     public Task GetNormalizedRoleNameAsync(TRole role, CancellationToken cancellationToken)
     {
return Task.FromResult(role.Name);
     }
     public Task GetRoleIdAsync(TRole role, CancellationToken cancellationToken)
     {
return Task.FromResult(role.Id);
     }
     public Task GetRoleNameAsync(TRole role, CancellationToken cancellationToken)
     {
return Task.FromResult(role.Name);
     }
     public Task SetNormalizedRoleNameAsync(TRole role, string normalizedName, CancellationToken cancellationToken)
     {
role.Name = normalizedName;
return Task.FromResult();
     }
     public Task SetRoleNameAsync(TRole role, string roleName, CancellationToken cancellationToken)
     {
role.Name = roleName;
return Task.FromResult();
     }
     public Task UpdateAsync(TRole role, CancellationToken cancellationToken)
     {
_roles[role.Id] = role;
return Task.FromResult(IdentityResult.Success);
     }
   }

可以看到，在第12行，我们的方法里直接写死了角色列表，如果相结合具体的项目的话，我相信叶良辰有一百种方法从各种数据库、配置文件等取得角色列表，而其他程序代码却基本不用更改。

当然，asp.net5自带的默认实现实现了很多其他接口，这里为了最简单起见，只实现了最基本的。

以上就是给大家介绍的asp.net5中用户认证与授权(2)，希望大家喜欢。后续还会持续更新，请大家持续关注本站。