//******************************************************************************************************//  IFtpSessionState.cs - Gbtc////  Copyright © 2012, Grid Protection Alliance.  All Rights Reserved.////  Licensed to the Grid Protection Alliance (GPA) under one or more contributor license agreements. See//  the NOTICE file distributed with this work for additional information regarding copyright ownership.//  The GPA licenses this file to you under the MIT License (MIT), the "License"; you may//  not use this file except in compliance with the License. You may obtain a copy of the License at:////      http://www.opensource.org/licenses/MIT////  Unless agreed to in writing, the subject software distributed under the License is distributed on an//  "AS-IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. Refer to the//  License for the specific language governing permissions and limitations.////  Code Modification History://  ----------------------------------------------------------------------------------------------------//  09/23/2008 - J. Ritchie Carroll//       Generated original version of source code.//  09/14/2009 - Stephen C. Wills//       Added new header and license agreement.//  12/17/2012 - Starlynn Danyelle Gilliam//       Modified Header.////****************************************************************************************************** #region [ Contributor License Agreements ] //*******************************************************************************************************////   Code based on the following project://        http://www.codeproject.com/KB/IP/net_ftp_upload.aspx//  //   Copyright Alex Kwok & Uwe Keim ////   The Code Project Open License (CPOL)://        http://www.codeproject.com/info/cpol10.aspx////******************************************************************************************************* #endregion using System;using System.Net; namespace GSF.Net.Ftp{    /// <summary>    /// Abstract representation of a FTP session state (e.g., connected or disconnected).    /// </summary>    internal interface IFtpSessionState : IDisposable    {        /// <summary>        /// Gets or sets FTP server name (DNS name or IP).        /// </summary>        string Server { get; set; }         /// <summary>        /// Gets or sets FTP server port to use, defaults to 21.        /// </summary>        int Port { get; set; }         /// <summary>        /// Gets or sets the timeout, in milliseconds, for        /// read and write operations, defaults to 30 seconds.        /// </summary>        int Timeout { get; set; }         /// <summary>        /// Gets or sets the passive/active mode of the FTP server.        /// </summary>        bool Passive { get; set; }         /// <summary>        /// Gets or sets the IP address to send with the PORT command.        /// </summary>        IPAddress ActiveAddress { get; set; }         /// <summary>        /// Gets or sets the minimum value in the range of ports        /// used when listening for connections in active mode.        /// </summary>        int MinActivePort { get; set; }         /// <summary>        /// Gets or sets the maximum value in the range of ports        /// used when listening for connections in active mode.        /// </summary>        int MaxActivePort { get; set; }         /// <summary>        /// Gets or sets current FTP session directory.        /// </summary>        FtpDirectory CurrentDirectory { get; set; }         /// <summary>        /// Gets FTP session root directory entry.        /// </summary>         FtpDirectory RootDirectory { get; }         /// <summary>        /// Gets the current FTP control channel.        /// </summary>        FtpControlChannel ControlChannel { get; }         /// <summary>        /// Returns true if FTP session is currently busy.        /// </summary>        bool IsBusy { get; }         /// <summary>        /// Aborts current file transfer.        /// </summary>        void AbortTransfer();         /// <summary>        /// Connects to FTP server using specified credentials.        /// </summary>        /// <param name="userName">User name used to authenticate to FTP server.</param>        /// <param name="password">Password used to authenticate to FTP server.</param>        void Connect(string userName, string password);         /// <summary>        /// Closes current FTP session.        /// </summary>        void Close();    }}