using SysSecLibs;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SysBaseLibs
{
    public class ValidityLicense
    {
        public static bool Validity()
        {
            bool lbRetval = false;
            string text1 = SysSecLibs.FileFuns.ReadFileAsString(AppDomain.CurrentDomain.BaseDirectory + "bin\\License.xml");
            if (text1 != "")
            {
                rsXmlNode node = rsXmlNode.ParseGenericXml(text1);
                if (node != null)
                {
                    if (node.GetChildValue("Method") == "D")
                    {
                        string ExpirationDate = node.GetChildValue("ExpirationDate");
                        DateTime dt = UtilStr.StrToDt(SysSecurity.Decrypt4CPlus(ExpirationDate), "yyyy-MM-dd");
                        if (dt.CompareTo(DateTime.Now) > 0)
                        {
                            SysBaseLibs.ThreadLog.LogInfo("License有效期验证通过!");
                            return true;
                        }
                        else
                        {
                            SysBaseLibs.ThreadLog.LogInfo(ExpirationDate + "早于当前时间，License有效期验证不通过!");
                        }
                    }
                }
            }
            return lbRetval;
        }
    }
}