[C#/COMMON] FTP 파일 크기 및 시간 구하기

TestProject.zip

다운로드

▶ MainForm.cs

using System;
using System.Net;
using System.Windows.Forms;

namespace TestProject
{
    /// <summary>
    /// 메인 폼
    /// </summary>
    public partial class MainForm : Form
    {
        //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor
        ////////////////////////////////////////////////////////////////////////////////////////// Public

        #region 생성자 - MainForm()

        /// <summary>
        /// 생성자
        /// </summary>
        public MainForm()
        {
            InitializeComponent();

            #region 이벤트를 설정한다.

            this.searchButton.Click += searchButton_Click;

            #endregion
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Method
        ////////////////////////////////////////////////////////////////////////////////////////// Private
        //////////////////////////////////////////////////////////////////////////////// Event

        #region 조회 버튼 클릭시 처리하기 - searchButton_Click(sender, e)

        /// <summary>
        /// 조회 버튼 클릭시 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void searchButton_Click(object sender, EventArgs e)
        {
            try
            {
                Cursor = Cursors.WaitCursor;

                this.statusLabel.Text = "작업을 시작합니다.";

                this.fileSizeTextBox.Clear();
                this.timeStampTextBox.Clear();

                Refresh();

                this.fileSizeTextBox.Text = GetFTPFileSize
                (
                    this.urlTextBox.Text,
                    this.userNameTextBox.Text,
                    this.passwordTextBox.Text
                ).ToString();

                this.timeStampTextBox.Text = GetFTPFileTimestamp
                (
                    this.urlTextBox.Text,
                    this.userNameTextBox.Text,
                    this.passwordTextBox.Text
                ).ToString();

                this.statusLabel.Text = "작업을 완료했습니다.";
            }
            catch(Exception exception)
            {
                this.statusLabel.Text = "에러가 발생했습니다.";

                MessageBox.Show(exception.Message);
            }
            finally
            {
                Cursor = Cursors.Default;
            }
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////// Function

        #region FTP 파일 크기 구하기 - GetFTPFileSize(ftpURL, ftpUserName, ftpPassword)

        /// <summary>
        /// FTP 파일 크기 구하기
        /// </summary>
        /// <param name="ftpURL">FTP URL</param>
        /// <param name="ftpUserName">FTP 사용자명</param>
        /// <param name="ftpPassword">FTP 패스워드</param>
        /// <returns>FTP 파일 크기</returns>
        private long GetFTPFileSize(string ftpURL, string ftpUserName, string ftpPassword)
        {
            FtpWebRequest request = (FtpWebRequest)WebRequest.Create(ftpURL);

            request.Method = WebRequestMethods.Ftp.GetFileSize;

            request.Credentials = new NetworkCredential(ftpUserName, ftpPassword);

            try
            {
                using(FtpWebResponse response = (FtpWebResponse)request.GetResponse())
                {
                    return response.ContentLength;
                }
            }
            catch(Exception exception)
            {
                if(exception.Message.Contains("File unavailable"))
                {
                    return -1;
                }

                throw;
            }
        }

        #endregion
        #region FTP 파일 타임스탬프 구하기 - GetFTPFileTimestamp(ftpURL, ftpUserName, ftpPassword)

        /// <summary>
        /// FTP 파일 타임스탬프 구하기
        /// </summary>
        /// <param name="ftpURL">FTP URL</param>
        /// <param name="ftpUserName">FTP 사용자명</param>
        /// <param name="ftpPassword">FTP 패스워드</param>
        /// <returns>FTP 파일 타임스탬프</returns>
        private DateTime GetFTPFileTimestamp(string ftpURL, string ftpUserName, string ftpPassword)
        {
            FtpWebRequest request = (FtpWebRequest)WebRequest.Create(ftpURL);

            request.Method = WebRequestMethods.Ftp.GetDateTimestamp;

            request.Credentials = new NetworkCredential(ftpUserName, ftpPassword);

            try
            {
                using(FtpWebResponse response = (FtpWebResponse)request.GetResponse())
                {
                    return response.LastModified;
                }
            }
            catch(Exception exception)
            {
                if(exception.Message.Contains("File unavailable"))
                {
                    return new DateTime(3000, 1, 1);
                }

                throw;
            }
        }

        #endregion
    }
}