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asp.net5中用户认证与授权(2)

时间:2019-12-25 13:01     来源/作者:mrr

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:

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

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public class HDRoleStore<TRole> : IQueryableRoleStore<TRole>
     where TRole : HDRole, new()
   {
     /// <summary>
     /// 存储所有预定义的角色
     /// </summary>
     private readonly Dictionary<string, TRole> _roles = new Dictionary<string, TRole>();
     /// <summary>
    /// 所有角色
    /// </summary>
    public IQueryable<TRole> 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<IdentityResult> CreateAsync(TRole role, CancellationToken cancellationToken)
    {
      _roles[role.Id] = role;
      return Task.FromResult(IdentityResult.Success);
    }
    public Task<IdentityResult> 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<TRole> FindByIdAsync(string roleId, CancellationToken cancellationToken)
    {
      if (_roles.ContainsKey(roleId))
      {
        return Task.FromResult(_roles[roleId]);
      }
      return Task.FromResult<TRole>(null);
    }
    public Task<TRole> FindByNameAsync(string normalizedRoleName, CancellationToken cancellationToken)
    {
      return
         Task.FromResult(
           Roles.SingleOrDefault(r => String.Equals(r.Name, normalizedRoleName, StringComparison.OrdinalIgnoreCase)));
    }
    public Task<string> GetNormalizedRoleNameAsync(TRole role, CancellationToken cancellationToken)
    {
      return Task.FromResult(role.Name);
    }
    public Task<string> GetRoleIdAsync(TRole role, CancellationToken cancellationToken)
    {
      return Task.FromResult(role.Id);
    }
    public Task<string> 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<IdentityResult> 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。

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