private void SetUserSession(LoginPermission loginPermission)
{
HttpCookie cookie = new HttpCookie("WEI_SESSION");
cookie.HttpOnly = true;
cookie.Value = loginPermission.Session;
_httpContext.Response.SetCookie(cookie);
}
public LoginPermission CheckPermission()
{
string session = GetUserSession();
if (string.IsNullOrEmpty(session))
{
return(null);
}
// throw new ArgumentNullException("loginPermission.ssession");
// 获取 loginpermission
var oldP = (from loginpermission in _loginpermissionRepository.Table
where loginpermission.Session == session
select loginpermission).FirstOrDefault();
if (oldP == null || oldP.IsEffectived == 0)
{
return(null);
}
// 获取用户的最后访问时间
var lastAccess = (from loginpermission in _loginpermissionRepository.Table
where loginpermission.UserId == oldP.UserId
orderby loginpermission.AccessTime descending
select loginpermission.AccessTime).FirstOrDefault();
// 标识旧令牌失效
oldP.IsEffectived = 0;
_loginpermissionRepository.Update(oldP);
if (lastAccess == oldP.AccessTime)
{
// 生成新令牌 并返回
LoginPermission newP = new LoginPermission()
{
AccessTime = DateTime.Now,
IsEffectived = 1,
Session = Guid.NewGuid().ToString("N"),
UserId = oldP.UserId
};
_loginpermissionRepository.Insert(newP);
SetUserSession(newP);
return(newP);
}
return(null);
}
public void Delete(LoginPermission permission)
{
LoginPermissions permissions = new LoginPermissions();
permissions.Delete(permission);
}
