licensemanager.cs

来自「该源代码用 C# 写成」· CS 代码 · 共 103 行

using System;

namespace Org.InteliIM.Configurations
{
	/// <summary>
	/// Description of LicenseManager.
	/// </summary>
	public class LicenseManager
	{
		public LicenseManager()
		{
		}

		public LicenseManager(Preference preference)
		{
			this.Preference = preference;
		}

		private Preference preference;

		public Preference Preference
		{
			get { return this.preference; }
			set { this.preference = value; }
		}

		private LicenseState licenseState = LicenseState.Tryout;

		public LicenseState LicenseState
		{
			get
			{
				this.Verify();

				return this.licenseState;
			}
			set
			{
				if (this.licenseState != value)
				{
					this.licenseState = value;
					this.OnLicenseStateChanged();
				}
			}
		}

		public bool Pass(string userName, string registrationCode)
		{
			this.Preference["License.UserName"] = userName;
			this.Preference["License.RegistrationCode"] = registrationCode;

			return true;
		}

		public string UserName
		{
			get { return this.Preference["License.UserName"]; }
		}

		public string RegistrationCode
		{
			get { return this.Preference["License.RegistrationCode"]; }
		}

		public void Verify()
		{
			this.Preference.Load();

			string userName = this.Preference["License.UserName"];
			string registrationCode = this.Preference["License.RegistrationCode"];

			if (userName != null && userName != ""
				&& registrationCode != null && registrationCode != ""
				&& userName == registrationCode)
			{
				this.LicenseState = LicenseState.HasBought;
				this.Preference.Save();

				return;
			}

			if ((DateTime.Now.Subtract(DateTime.Parse("1-30-2005"))).Days > 0)
			{
				this.LicenseState = LicenseState.Expired;
			}
		}

		public void OnLicenseStateChanged()
		{
			if (this.LicenseStateChanged != null)
				this.LicenseStateChanged(null, null);
		}

		public event EventHandler LicenseStateChanged;
	}

	public enum LicenseState
	{
		HasBought,
		Tryout,
		Expired
	}
}