I'm using the following code to send an XML file by FTP:
var request = (FtpWebRequest) WebRequest.Create(destination);
request.Method = WebRequestMethods.Ftp.UploadFile;
request.Credentials = new NetworkCredential(UserName, Password);
byte[] fileContents;
using (StreamReader sourceStream = new StreamReader(originpath + filename))
{
fileContents = Encoding.UTF8.GetBytes(sourceStream.ReadToEnd());
}
request.ContentLength = fileContents.Length;
using (Stream requestStream = request.GetRequestStream())
{
requestStream.Write(fileContents, 0, fileContents.Length);
}
This seems to work, except the format of the file at the origin is utf-8 with signature, and it's without signature at the destination.
I've tried to preserve the utf encoding, but I seem to have lost the BOM.
Is this a problem with my code - specifically, with the way that requeststream.write works?
Related
Hello there fellow programmers!
I have an issue with sending PDF through FTP. I want to copy propely created PDF to FTP directory, unfortunately file i send through has proper size but i cannot open it with any PDF editor. I've tried searching soulutions but my converting and encoding does not seem to work. Here is my code:
public string SendPDF(string FileNamePath, string ShortFileName)
{
string Response = string.Empty;
//FullPath is generated in class constructor
FtpWebRequest request = (FtpWebRequest)WebRequest.Create(FullPath+#"\"+ShortFileName+".pdf");
request.Method = WebRequestMethods.Ftp.UploadFile;
request.Credentials = new NetworkCredential(User, Password);
//FileNamePath is directory of source file
byte[] fileContents= File.ReadAllBytes(#FileNamePath + ".pdf");
string pdfBase64 = Convert.ToBase64String(fileContents);
using(var stream = GenerateStreamFromString(pdfBase64))
{
request.ContentLength = stream.Length;
using (Stream requestStream = request.GetRequestStream())
{
stream.CopyTo(requestStream);
requestStream.Close();
}
}
using (FtpWebResponse response = (FtpWebResponse)request.GetResponse())
{
Response = "Upload File PDF Complete, status" + Convert.ToString(response.StatusDescription);
}
return Response;
}
public static Stream GenerateStreamFromString(string s)
{
var stream = new MemoryStream();
var writer = new StreamWriter(stream);
writer.Write(s);
writer.Flush();
stream.Position = 0;
return stream;
}
Also, I've tried code below but it has the same issue:
byte[] fileContents ;
using (StreamReader sourceStream = new StreamReader(FileNamePath + ".pdf"))
{
fileContents = Encoding.UTF8.GetBytes(sourceStream.ReadToEnd());
}
request.ContentLength = fileContents.Length;
using (Stream requestStream = request.GetRequestStream())
{
requestStream.Write(fileContents, 0, fileContents.Length);
}
Sending through XML file works completely fine. Thank you in advance and please don't be harsh this is my first question here :3
I found the solution. The issue was lack of parameter request.UseBinary = true. Here is proper code:
public string SendPDF(string FileNamePath, string ShortFileName)
{
string Response = string.Empty;
FtpWebRequest request = (FtpWebRequest)WebRequest.Create(FTPPath+#"\"+ShortFileName+".pdf");
request.Method = WebRequestMethods.Ftp.UploadFile;
request.UseBinary = true;
request.Credentials = new NetworkCredential(User, Password);
byte[] fileContents;
using (StreamReader sourceStream = new StreamReader(FileNamePath + ".pdf"))
{
fileContents = Encoding.UTF8.GetBytes(sourceStream.ReadToEnd());
}
request.ContentLength = fileContents.Length;
using (Stream requestStream = request.GetRequestStream())
{
requestStream.Write(fileContents, 0, fileContents.Length);
}
using (FtpWebResponse response = (FtpWebResponse)request.GetResponse())
{
Response = "Upload File PDF Complete, status" + Convert.ToString(response.StatusDescription);
}
return Response;
}
I use following code to upload *.xls file into FTP. It works fine for uploading, but the content of *.xls file in FTP all mess up
FtpWebRequest request = (FtpWebRequest)WebRequest.Create(#"ftp://www.xxxxxx.com" + fileName);
request.Method = WebRequestMethods.Ftp.UploadFile;
request.Credentials = new NetworkCredential("username", "password");
StreamReader sourceStream = new StreamReader(filePath);
byte[] fileContents = Encoding.UTF8.GetBytes(sourceStream.ReadToEnd());
sourceStream.Close();
request.ContentLength = fileContents.Length;
Stream requestStream = request.GetRequestStream();
requestStream.Write(fileContents, 0, fileContents.Length);
requestStream.Close();
FtpWebResponse response = (FtpWebResponse)request.GetResponse();
Console.WriteLine("Upload File Complete, status {0}", response.StatusDescription);
response.Close();
Any one know how to fix this problem???????
Insted of this:
StreamReader sourceStream = new StreamReader(filePath);
byte[] fileContents = Encoding.UTF8.GetBytes(sourceStream.ReadToEnd());
sourceStream.Close();
Try to use this:
byte[] fileContents = File.ReadAllBytes(filePath);
It might be encoding\decoding problem.
I using the following code to send an excel file to FTP. File is sending, File size is also same. But file contains only spaces.
ftpAddress = "X.X.X.X";
outFilePath = "MyFolder/Sample.xls";
inFilePath = "D:/Hello.xls";
FtpWebRequest request = (FtpWebRequest)WebRequest.Create("ftp://" + ftpAddress + "/" + outFilePath);
request.Method = WebRequestMethods.Ftp.UploadFile;
request.UseBinary = true;
request.UsePassive = true;
request.KeepAlive = true;
request.Credentials = new NetworkCredential(userId, password);
//FileStream stream = File.OpenRead(inFilePath);
byte[] fileContents = File.ReadAllBytes(inFilePath);
//byte[] buffer = new byte[stream.Length];
request.ContentLength = fileContents.Length;
Stream requestStream = request.GetRequestStream();
requestStream.Write(fileContents, 0, fileContents.Length);
requestStream.Close();
//Shows confirm message
FtpWebResponse response = (FtpWebResponse)request.GetResponse();
Console.WriteLine(response);
response.Close();
Please help. Thanks in advance.
Source: http://msdn.microsoft.com/en-us/library/ms229715(v=vs.110).aspx
using System;
using System.IO;
using System.Net;
using System.Text;
namespace Examples.System.Net
{
public class WebRequestGetExample
{
public static void Main ()
{
// Get the object used to communicate with the server.
FtpWebRequest request = (FtpWebRequest)WebRequest.Create("ftp://www.contoso.com/test.htm");
request.Method = WebRequestMethods.Ftp.UploadFile;
// This example assumes the FTP site uses anonymous logon.
request.Credentials = new NetworkCredential ("anonymous","janeDoe#contoso.com");
// Copy the contents of the file to the request stream.
StreamReader sourceStream = new StreamReader("testfile.txt");
byte [] fileContents = Encoding.UTF8.GetBytes(sourceStream.ReadToEnd());
sourceStream.Close();
request.ContentLength = fileContents.Length;
Stream requestStream = request.GetRequestStream();
requestStream.Write(fileContents, 0, fileContents.Length);
requestStream.Close();
FtpWebResponse response = (FtpWebResponse)request.GetResponse();
Console.WriteLine("Upload File Complete, status {0}", response.StatusDescription);
response.Close();
}
}
}
}
I am using .NET 4 C#. I am trying to upload and then download a ZIP file to (my) server.
For uploading I have
using (WebClient client = new WebClient())
{
FtpWebRequest request = (FtpWebRequest)WebRequest.Create(MyUrl);
request.Method = WebRequestMethods.Ftp.UploadFile;
request.EnableSsl = false;
request.Credentials = new NetworkCredential(MyLogin, MyPassword);
byte[] fileContents = null;
using (StreamReader sourceStream = new StreamReader(LocalFilePath))
{
fileContents = Encoding.UTF8.GetBytes(sourceStream.ReadToEnd());
}
request.ContentLength = fileContents.Length;
using (Stream requestStream = request.GetRequestStream())
{
requestStream.Write(fileContents, 0, fileContents.Length);
}
FtpWebResponse response = null;
response = (FtpWebResponse)request.GetResponse();
response.Close();
}
This seems to work, in that I get a file on the server of the right size.
1) How do I stream it, rather than load it into memory first? I will be uploading very large files.
And for downloading I have
using (WebClient client = new WebClient())
{
string HtmlResult = String.Empty;
FtpWebRequest request = (FtpWebRequest)WebRequest.Create(remoteFile);
request.Method = WebRequestMethods.Ftp.DownloadFile;
request.EnableSsl = false;
request.Credentials = new NetworkCredential(MyLogin, MyPassword);
using (FtpWebResponse response = (FtpWebResponse)request.GetResponse())
using (Stream responseStream = response.GetResponseStream())
using (StreamReader reader = new StreamReader(responseStream))
using (FileStream writer = new FileStream(localFilename, FileMode.Create))
{
long length = response.ContentLength;
int bufferSize = 2048;
int readCount;
byte[] buffer = new byte[2048];
readCount = responseStream.Read(buffer, 0, bufferSize);
while (readCount > 0)
{
writer.Write(buffer, 0, readCount);
readCount = responseStream.Read(buffer, 0, bufferSize);
}
}
}
2) Everything seems to work ... except when I try to unzip the downloaded ZIP file I get an invalid ZIP file.
Upload
The most trivial way to upload a binary file to an FTP server using .NET framework is using WebClient.UploadFile:
WebClient client = new WebClient();
client.Credentials = new NetworkCredential("username", "password");
client.UploadFile(
"ftp://ftp.example.com/remote/path/file.zip", #"C:\local\path\file.zip");
If you need a greater control, that WebClient does not offer (like TLS/SSL encryption, ascii/text transfer mode, transfer resuming, etc), use FtpWebRequest. Easy way is to just copy a FileStream to FTP stream using Stream.CopyTo:
FtpWebRequest request =
(FtpWebRequest)WebRequest.Create("ftp://ftp.example.com/remote/path/file.zip");
request.Credentials = new NetworkCredential("username", "password");
request.Method = WebRequestMethods.Ftp.UploadFile;
using (Stream fileStream = File.OpenRead(#"C:\local\path\file.zip"))
using (Stream ftpStream = request.GetRequestStream())
{
fileStream.CopyTo(ftpStream);
}
If you need to monitor an upload progress, you have to copy the contents by chunks yourself:
FtpWebRequest request =
(FtpWebRequest)WebRequest.Create("ftp://ftp.example.com/remote/path/file.zip");
request.Credentials = new NetworkCredential("username", "password");
request.Method = WebRequestMethods.Ftp.UploadFile;
using (Stream fileStream = File.OpenRead(#"C:\local\path\file.zip"))
using (Stream ftpStream = request.GetRequestStream())
{
byte[] buffer = new byte[10240];
int read;
while ((read = fileStream.Read(buffer, 0, buffer.Length)) > 0)
{
ftpStream.Write(buffer, 0, read);
Console.WriteLine("Uploaded {0} bytes", fileStream.Position);
}
}
For GUI progress (WinForms ProgressBar), see:
How can we show progress bar for upload with FtpWebRequest
If you want to upload all files from a folder, see
Recursive upload to FTP server in C#.
Download
The most trivial way to download a binary file from an FTP server using .NET framework is using WebClient.DownloadFile:
WebClient client = new WebClient();
client.Credentials = new NetworkCredential("username", "password");
client.DownloadFile(
"ftp://ftp.example.com/remote/path/file.zip", #"C:\local\path\file.zip");
If you need a greater control, that WebClient does not offer (like TLS/SSL encryption, ascii/text transfer mode, resuming transfers, etc), use FtpWebRequest. Easy way is to just copy an FTP response stream to FileStream using Stream.CopyTo:
FtpWebRequest request =
(FtpWebRequest)WebRequest.Create("ftp://ftp.example.com/remote/path/file.zip");
request.Credentials = new NetworkCredential("username", "password");
request.Method = WebRequestMethods.Ftp.DownloadFile;
using (Stream ftpStream = request.GetResponse().GetResponseStream())
using (Stream fileStream = File.Create(#"C:\local\path\file.zip"))
{
ftpStream.CopyTo(fileStream);
}
If you need to monitor a download progress, you have to copy the contents by chunks yourself:
FtpWebRequest request =
(FtpWebRequest)WebRequest.Create("ftp://ftp.example.com/remote/path/file.zip");
request.Credentials = new NetworkCredential("username", "password");
request.Method = WebRequestMethods.Ftp.DownloadFile;
using (Stream ftpStream = request.GetResponse().GetResponseStream())
using (Stream fileStream = File.Create(#"C:\local\path\file.zip"))
{
byte[] buffer = new byte[10240];
int read;
while ((read = ftpStream.Read(buffer, 0, buffer.Length)) > 0)
{
fileStream.Write(buffer, 0, read);
Console.WriteLine("Downloaded {0} bytes", fileStream.Position);
}
}
For GUI progress (WinForms ProgressBar), see:
FtpWebRequest FTP download with ProgressBar
If you want to download all files from a remote folder, see
C# Download all files and subdirectories through FTP.
I am using ASP.Net MVC 4 and WebImage helpers. I need to upload my WebImage object via FTP. I just don't know how to get the WebImage parameters to send to my RequestStream.Write
Here is some code...
WebImage photo = WebImage.GetImageFromRequest();
string fileName = System.IO.Path.GetFileName(photo.FileName);
FtpWebRequest request = (FtpWebRequest)WebRequest.Create(FTPaddress +"/images/" + fileName);
request.Method = WebRequestMethods.Ftp.UploadFile;
request.Credentials = new NetworkCredential("****", "*****");
request.UsePassive = true;
request.ContentLength = ???????;
byte[] buffer = ????????; //It's not photo.GetBytes;
Stream requestStream = request.GetRequestStream();
requestStream.Write(buffer, 0, request.ContentLength);
requestStream.Close();
FtpWebResponse response = (FtpWebResponse)request.GetResponse();
response.Close();
And will I be able to use the photo.Save() to the FTP path afterwards?
byte [] fileContents = photo.GetBytes();
request.ContentLength = fileContents.Length;
Stream requestStream = request.GetRequestStream();
requestStream.Write(fileContents, 0, fileContents.Length);
requestStream.Close();
That's how you do it, silly me.