71 lines
2.8 KiB
C#
71 lines
2.8 KiB
C#
using System;
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using System.IO;
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using System.Net;
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using System.Text;
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namespace FanucProgramManager.Cnc.Siemens
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{
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/// <summary>FTP client for Siemens Sinumerik CNC program transfer.</summary>
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internal sealed class SiemensFtpClient : ISiemensFtpClient
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{
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private readonly SiemensConnectionConfig _config;
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public SiemensFtpClient(SiemensConnectionConfig config)
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{
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_config = config ?? throw new ArgumentNullException("config");
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}
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/// <summary>Verify FTP server is reachable by listing the program directory.</summary>
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public bool Ping()
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{
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try
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{
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var req = CreateRequest(_config.ProgramDirectory, WebRequestMethods.Ftp.ListDirectory);
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using (var resp = (FtpWebResponse)req.GetResponse())
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return resp.StatusCode == FtpStatusCode.DataAlreadyOpen
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|| resp.StatusCode == FtpStatusCode.OpeningData
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|| (int)resp.StatusCode / 100 == 2;
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}
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catch { return false; }
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}
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/// <summary>Download file from Sinumerik to string (upload from CNC perspective).</summary>
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public string DownloadFile(string ncPath)
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{
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var req = CreateRequest(ncPath, WebRequestMethods.Ftp.DownloadFile);
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using (var resp = (FtpWebResponse)req.GetResponse())
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using (var reader = new StreamReader(resp.GetResponseStream(), Encoding.ASCII))
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return reader.ReadToEnd();
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}
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/// <summary>Upload string content to Sinumerik (download from CNC perspective).</summary>
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public void UploadFile(string ncPath, string content)
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{
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var req = CreateRequest(ncPath, WebRequestMethods.Ftp.UploadFile);
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byte[] data = Encoding.ASCII.GetBytes(content);
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req.ContentLength = data.Length;
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using (var stream = req.GetRequestStream())
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stream.Write(data, 0, data.Length);
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using ((FtpWebResponse)req.GetResponse()) { }
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}
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public void DeleteFile(string ncPath)
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{
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var req = CreateRequest(ncPath, WebRequestMethods.Ftp.DeleteFile);
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using ((FtpWebResponse)req.GetResponse()) { }
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}
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private FtpWebRequest CreateRequest(string path, string method)
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{
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string uri = string.Format("ftp://{0}:{1}{2}", _config.IpAddress, _config.Port, path);
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var req = (FtpWebRequest)WebRequest.Create(uri);
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req.Method = method;
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req.Credentials = new NetworkCredential(_config.Username, _config.Password);
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req.Timeout = (int)_config.RequestTimeout.TotalMilliseconds;
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req.KeepAlive = false;
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req.UseBinary = false;
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req.UsePassive = true;
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return req;
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}
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}
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}
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