Develop Reference

Send File From Azure WebJobs Using FTP

I have 1 issues when i try too send file using FTP from Azure WebJobs.
This throw alternatly 'The remote server returned an error: (530) Not logged in.', my code work great in localhost (on dev computer).
I have read all off thoses Post but i didn't find a way :
FTPWebRequest 530 Error: Not Logged in issue
FTP The remote server returned an error: (530) Not logged in
Fetching files from FTP server via Azure webjobs
Ftp to external server in azure webjob not working
Other but i have only 1 webjobs in my app service and the CPU was at 30% when the jobs running ..
File download from FTP fails only in Azure web app
Edit :
Code Make Directory
FtpWebRequest reqFTP = null;
Stream ftpStream = null;
string[] subDirs = directory.Split('/');
string currentDir = publishUrl;
foreach (string subDir in subDirs)
{
try
{
currentDir = currentDir + "/" + subDir;
reqFTP = (FtpWebRequest)FtpWebRequest.Create(currentDir);
reqFTP.Method = WebRequestMethods.Ftp.MakeDirectory;
reqFTP.UseBinary = true;
//reqFTP.UsePassive = true;
//reqFTP.KeepAlive = true;
reqFTP.Credentials = new NetworkCredential(userName, userPWD);
FtpWebResponse response = (FtpWebResponse)await reqFTP.GetResponseAsync();
ftpStream = response.GetResponseStream();
ftpStream.Close();
response.Close();
}
catch (Exception exception)
{
Console.WriteLine(exception.Message);
//directory already exist I know that is weak but there is no way to check if a folder exist on ftp...
}
}
Code Send File :
try
{
using (WebClient client = new WebClient())
{
client.Credentials = new NetworkCredential(userName, userPWD);
client.UploadFile(publishUrl, "STOR", localFileName);
return true;
}
}
catch (Exception exception)
{
//Console.Error.Write(exception.Message);
Console.WriteLine(exception.Message);
return false;
}
And log when i run code in Azure WebApp WebJobs (Failed) :
https://pastebin.com/vgTxqT5p
And log when i run code in local machine (Work Great) :
https://pastebin.com/hBpum8T0
I think the workaround was on WebJobs app style and normal function wasn't waiting. I'm going to change my code to use Async Await method for all my WebJobs program.
Any have a way ?
Thx in advance.

Bad way (and i didn't Like this) but it's work..... :
Change the Make Directory Function like this :
public static void MakeFTPDir(string publishUrl, string userName, string userPWD, string directory)
{
FtpWebRequest reqFTP = null;
Stream ftpStream = null;
string[] subDirs = directory.Split('/');
string currentDir = publishUrl;
foreach (string subDir in subDirs)
{
bool isNotCreated = true;
int iTentative = 0;
currentDir = currentDir + "/" + subDir;
while (isNotCreated)
{
iTentative++;
try
{
reqFTP = (FtpWebRequest)FtpWebRequest.Create(currentDir);
reqFTP.Method = WebRequestMethods.Ftp.MakeDirectory;
reqFTP.UseBinary = true;
reqFTP.UsePassive = true;
reqFTP.KeepAlive = true;
reqFTP.Credentials = new NetworkCredential(userName, userPWD);
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
ftpStream = response.GetResponseStream();
ftpStream.Close();
response.Close();
}
catch(WebException webException)
{
FtpWebResponse excWebResponse = (FtpWebResponse)webException.Response;
if(excWebResponse.StatusCode == FtpStatusCode.NotLoggedIn)
{
Console.WriteLine("WebException ==> NotLoggedIn >> Tentative :" + iTentative);
isNotCreated = true;
}
else
{
Console.WriteLine(webException.Message);
isNotCreated = false;
}
}
catch (Exception exception)
{
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
if (response.StatusCode == FtpStatusCode.NotLoggedIn)
{
Console.WriteLine("Exception ==> NotLoggedIn >> Tentative :" + iTentative);
isNotCreated = true;
}
else
{
Console.WriteLine(exception.Message);
isNotCreated = false;
}
}
}
}
}
Change the send file function like this
public static bool SendFtpFile(string publishUrl, string userName, string userPWD, string localFileName)
{
bool isNotCreated = true;
int iTentative = 0;
while (isNotCreated)
{
iTentative++;
try
{
using (WebClient client = new WebClient())
{
client.Credentials = new NetworkCredential(userName, userPWD);
client.UploadFile(publishUrl, "STOR", localFileName);
return true;
}
}
catch (WebException webException)
{
FtpWebResponse excWebResponse = (FtpWebResponse)webException.Response;
if (excWebResponse.StatusCode == FtpStatusCode.NotLoggedIn)
{
Console.WriteLine("WebException ==> NotLoggedIn >> Tentative :" + iTentative);
isNotCreated = true;
}
else
{
Console.WriteLine(webException.Message);
return false;
}
}
catch (Exception exception)
{
Console.WriteLine(exception.Message);
return false;
}
}
return true;
}
Change the IfFileExistOnServer :
public static bool CheckIfFileExistsOnServer(string publishUrl, string userName, string userPWD, string fileName)
{
bool isNoCheck = true;
int iTentative = 0;
string azureBotUrl = publishUrl + "/" + fileName;
while (isNoCheck)
{
iTentative++;
try
{
var request = (FtpWebRequest)WebRequest.Create(azureBotUrl);
request.Credentials = new NetworkCredential(userName, userPWD);
request.UseBinary = true;
request.UsePassive = true;
request.KeepAlive = true;
request.Method = WebRequestMethods.Ftp.GetFileSize;
FtpWebResponse response = (FtpWebResponse)request.GetResponse();
return true;
}
catch (WebException webException)
{
FtpWebResponse excWebResponse = (FtpWebResponse)webException.Response;
if (excWebResponse.StatusCode == FtpStatusCode.ActionNotTakenFileUnavailable)
return false;
if (excWebResponse.StatusCode == FtpStatusCode.NotLoggedIn)
{
Console.WriteLine("WebException ==> NotLoggedIn >> Tentative :" + iTentative);
isNoCheck = true;
}
else
{
return false;
}
}
}
return false;
}
And Change RenameFileOnServer :
public static bool RenameFileOnServer(string publishUrl, string userName, string userPWD, string sourceFileName, string newFileName)
{
bool isNoRenameFile = true;
int iTentative = 0;
FtpWebRequest ftpRequest = null;
FtpWebResponse ftpResponse = null;
string azureBotUrl = publishUrl + "/" + sourceFileName;
while (isNoRenameFile)
{
iTentative++;
try
{
ftpRequest = (FtpWebRequest)WebRequest.Create(azureBotUrl);
ftpRequest.Credentials = new NetworkCredential(userName, userPWD);
ftpRequest.UseBinary = true;
ftpRequest.UsePassive = true;
ftpRequest.KeepAlive = true;
ftpRequest.Method = WebRequestMethods.Ftp.Rename;
ftpRequest.RenameTo = newFileName.Split('\\')[newFileName.Split('\\').Length - 1];
ftpResponse = (FtpWebResponse)ftpRequest.GetResponse();
ftpResponse.Close();
ftpRequest = null;
return true;
}
catch (WebException webException)
{
FtpWebResponse excWebResponse = (FtpWebResponse)webException.Response;
if (excWebResponse.StatusCode == FtpStatusCode.NotLoggedIn)
{
Console.WriteLine("WebException ==> NotLoggedIn >> Tentative :" + iTentative);
isNoRenameFile = true;
}
else
{
return false;
}
Console.WriteLine(webException.Message);
}
catch (Exception)
{
return false;
}
}
return false;
}
I'm waiting a call from Ms Azure Support ...

How can i check if a specific sub directory already exist?

The code i'm using now:
string[] Files = GetFileList();
ArrayList arrDirectories = new ArrayList();
if (Files != null)
{
foreach (string dir in Files)
{
arrDirectories.Add(dir);
}
}
if (!arrDirectories.Contains(dirName))
{
Sync(dirName, reqFTP, response, ftpStream);
}
The method GetFileList:
public string[] GetFileList()
{
string[] downloadFiles;
StringBuilder result = new StringBuilder();
WebResponse response = null;
StreamReader reader = null;
try
{
FtpWebRequest reqFTP;
reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri("ftp://" + f.Host + "/"));
reqFTP.UseBinary = true;
reqFTP.Credentials = new NetworkCredential(f.Username, f.Password);
reqFTP.Method = WebRequestMethods.Ftp.ListDirectory;
reqFTP.Proxy = null;
reqFTP.KeepAlive = false;
reqFTP.UsePassive = false;
response = reqFTP.GetResponse();
reader = new StreamReader(response.GetResponseStream());
string line = reader.ReadLine();
while (line != null)
{
result.Append(line);
result.Append("\n");
line = reader.ReadLine();
}
result.Remove(result.ToString().LastIndexOf('\n'), 1);
return result.ToString().Split('\n');
}
catch (Exception ex)
{
if (reader != null)
{
reader.Close();
}
if (response != null)
{
response.Close();
}
downloadFiles = null;
return downloadFiles;
}
}
What i'm getting in the end in arrDirectories is all the files and directories and sub directories from my ftp server. The problem is that each file,directory,and sub directory are in it's own index.
For example i see in index 0 in arrDirectories: test
Then in index 1 i see: testsub
Then in index 2 i see: test.jpg
But in fact test is under root directory and testsub is under test and test.jpg is under testsub.
The problem is that when i check if directory already exist:
if (!arrDirectories.Contains(dirName))
If it's a single directory for example test then there is no problem.
But if the directory i want to check if exist is a sub directory like test/testsub
Then it will never find it even if it is exist on my ftp server.
So in case i have to check a directories like test/testsub or test/test1/test2/test3...what should i change first in the GEtFileList method ? And then how to loop over the arrDirectories maybe need a recursive ?

try using this code'
first get the directory structure into string array:
string[] Directories = Directory.GetDirectories(#"c:\windows\Temp", "*.*", SearchOption.AllDirectories);
then use linq to checkout if your directory exsists
bool DirectoryExists = !String.IsNullOrEmpty(Directories.Where(d => d.ToLower().Contains(#"Directory Name...")).FirstOrDefault());

Yes, you're right, the simplest way - call GetFileList() recursively
And put results into list, not into string
Here is your modified code
static public void GetFileList(List<string> list,string sroot)
{
WebResponse response = null;
StreamReader reader = null;
try
{
FtpWebRequest reqFTP;
reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri("ftp://" + Host+sroot));
reqFTP.UseBinary = true;
reqFTP.Credentials = new NetworkCredential(Username, Password);
reqFTP.Method = WebRequestMethods.Ftp.ListDirectoryDetails ;
reqFTP.Proxy = null;
reqFTP.KeepAlive = false;
reqFTP.UsePassive = false;
response = reqFTP.GetResponse();
reader = new StreamReader(response.GetResponseStream());
string line = reader.ReadLine();
string file;
while (!reader.EndOfStream )
{
if (line.StartsWith("-"))
{
file = sroot + "/" + line.Substring(57);
list.Add(file);
}
else if (line.StartsWith("d"))
{
file = sroot + "/" + line.Substring(57);
list.Add(file+"/");
GetFileList(list, file);
}
line = reader.ReadLine();
}
}
catch (Exception ex)
{
if (reader != null)
{
reader.Close();
}
if (response != null)
{
response.Close();
}
}
return;
}
Calls method ListDirectoryDetails instead of ListDirectory to
distinguish directories and files
Parses result to get file name from file details (am not sure it is always the end of line starting from pos. 57 :-)
Calls self for each found folder
The criteria of the end of stream is EndOfStream :-)
Here is the call
List<string> filelist = new List<string>();
GetFileList(filelist, "");
foreach (string s in filelist )
Console.WriteLine(s.Substring(1));
All folders have "/" at the end (feel free to do not include folders into list).
It's easy to build local file list using method from previous answer.

C# Ftp Error - Null reference

I have this code which works perfect when there is a file on FTP site , but when there is no file on FTP site it fails.
The error II get is in foreach (string file in files) and it says there is null reference .
How can I fix this so that if there is no file on FTP site this code will work.
Thanks in advance.
my error message
System.NullReferenceException was unhandled by user code
code
public void Main()
{
String[] files = GetFileList();
foreach (string file in files)
{
Download(file);
}
}
public string[] GetFileList()
{
string[] downloadFiles;
StringBuilder result = new StringBuilder();
WebResponse response = null;
StreamReader reader = null;
try
{
//FtpWebRequest reqFTP;
WebRequest reqFTP;
reqFTP = (FtpWebRequest)WebRequest.Create(new Uri("ftp://" + Dts.Variables["strHost"].Value+"/"));
//reqFTP.UseBinary = true;
String FTPUser = (String)Dts.Variables["strUserName"].Value;
String FTPPwd = (String)Dts.Variables["strPassword"].Value;
reqFTP.Credentials = new NetworkCredential(FTPUser, FTPPwd);
reqFTP.Method = WebRequestMethods.Ftp.ListDirectory;
reqFTP.Proxy = null;
//reqFTP.KeepAlive = true;
//reqFTP.UsePassive = true;
response = reqFTP.GetResponse();
reader = new StreamReader(response.GetResponseStream());
string line = reader.ReadLine();
while (line != null)
{
result.Append(line);
result.Append("\n");
line = reader.ReadLine();
}
// to remove the trailing '\n'
result.Remove(result.ToString().LastIndexOf('\n'), 1);
return result.ToString().Split('\n');
}
catch (Exception ex)
{
if (reader != null)
{
reader.Close();
}
if (response != null)
{
response.Close();
}
downloadFiles = null;
return downloadFiles;
}
}
private void Download(string file)
{
try
{
string uri = "ftp://" + Dts.Variables["strHost"].Value + "/" + file;
Uri serverUri = new Uri(uri);
if (serverUri.Scheme != Uri.UriSchemeFtp)
{
return;
}
WebRequest reqFTP;
//FtpWebRequest reqFTP;
reqFTP = (FtpWebRequest)WebRequest.Create(new Uri("ftp://" + Dts.Variables["strHost"].Value + "/" + file));
String FTPUser = (String)Dts.Variables["strUserName"].Value;
String FTPPwd = (String)Dts.Variables["strPassword"].Value;
reqFTP.Credentials = new NetworkCredential(FTPUser, FTPPwd);
//reqFTP.KeepAlive = true;
reqFTP.Method = WebRequestMethods.Ftp.DownloadFile;
//reqFTP.UseBinary = true;
reqFTP.Proxy = null;
//reqFTP.UsePassive = false;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
Stream responseStream = response.GetResponseStream();
FileStream writeStream = new FileStream(Dts.Variables["strLocalFolder"].Value + "\\" + file, FileMode.Create); int Length = 2048;
Byte[] buffer = new Byte[Length];
int bytesRead = responseStream.Read(buffer, 0, Length);
while (bytesRead > 0)
{
writeStream.Write(buffer, 0, bytesRead);
bytesRead = responseStream.Read(buffer, 0, Length);
}
writeStream.Close();
response.Close();
}
catch (WebException wEx)
{
MessageBox.Show(wEx.Message, "Download Error");
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Download Error");
}
}

You need to test the result of GetFilesList() for null, because you return null in case an error (in catch clause of GetFileList() you set the result - downloadFiles - to null).
public void Main()
{
String[] files = GetFileList();
if (files != null) // add this line
{
foreach (string file in files)
{
Download(file);
}
}

Problem is your call to GetFileList returns null and thus the foreach fails.

Upload Multiple files to FTP in c#

i'm using the below method to upload files from local server to FTP server, here i'm creating a new connection and initiating a new session each and every file uploading and closing the same. how to achieve this in single initiated session in c#.
this is my code
public bool UploadTempFilesToFTP()
{
string[] fileList;
try
{
ConfiguredValues conObj = new ConfiguredValues();
conObj.PickTheValuesFromConfigFile();
fileList = Directory.GetFiles(conObj.tempPath);
foreach (string FileName in fileList)
{
FtpWebRequest upldrequest = (FtpWebRequest)FtpWebRequest.Create(conObj.tempOutboundURL + FileName);
upldrequest.UseBinary = true;
upldrequest.KeepAlive = false;
upldrequest.Timeout = -1;
upldrequest.UsePassive = true;
upldrequest.Credentials = new NetworkCredential(conObj.user, conObj.pass);
upldrequest.Method = WebRequestMethods.Ftp.UploadFile;
string destinationAddress = conObj.tempPath;
FileStream fs = File.OpenRead(destinationAddress + FileName);
byte[] buffer = new byte[fs.Length];
fs.Read(buffer, 0, buffer.Length);
fs.Close();
Stream requestStr = upldrequest.GetRequestStream();
requestStr.Write(buffer, 0, buffer.Length);
requestStr.Close();
requestStr.Flush();
FtpWebResponse response = (FtpWebResponse)upldrequest.GetResponse();
response.Close();
File.Delete(destinationAddress + FileName);
}
Console.WriteLine("Uploaded Successfully to Temp folder");
return true;
}
catch (Exception ex)
{
Console.WriteLine("Upload failed. {0}", ex.Message);
return false;
}
}

it's weird that i answer an old question but i try almost everything to upload multiple files to ftp with no luck while the solution is very simple and effective, using LOOPING - foreach solved the issue for me i use the below function to Upload the files in one simple step..
public void Uploadbulkftpfiles(string[] list)
{
bool ife;// is folder exists
try
{
FtpWebRequest request = (FtpWebRequest)WebRequest.Create("ftp://ftpsite.com/folder");
request.Credentials = new NetworkCredential("Username", "Password");
request.Method = WebRequestMethods.Ftp.ListDirectory;
FtpWebResponse response = (FtpWebResponse)request.GetResponse();
ife = true;
}
catch (Exception)
{
ife = false;
}
/////////////////////////////////////////////begin of upload process
if (ife)//the folder is already exists
{
foreach (var str in list)
{
try
{
FtpWebRequest requestUP2 = (FtpWebRequest)WebRequest.Create("ftp://ftpsite.com/folder" + str);
requestUP2.Credentials = new NetworkCredential("UserName", "Password");
requestUP2.Method = WebRequestMethods.Ftp.UploadFile;
requestUP2.KeepAlive = false;
requestUP2.UsePassive = true;
using (Stream fileStream = File.OpenRead("ftp://ftpsite.com/folder" + str))
using (Stream ftpStream = requestUP2.GetRequestStream())
{
fileStream.CopyTo(ftpStream);
}
}
catch (Exception ex1)
{
MessageBox.Show(ex1.Message);
}
}
}
else if (!ife)
{
//CREATE THE FOLDER
try
{
FtpWebRequest request = (FtpWebRequest)WebRequest.Create("ftp:ftpsite/folder");
request.Credentials = new NetworkCredential("UserName", "Password");
request.Method = WebRequestMethods.Ftp.MakeDirectory;
FtpWebResponse response = (FtpWebResponse)request.GetResponse();
}
catch (Exception excr) { MessageBox.Show(excr.Message); }
//UPLOAD THE FILES
foreach (var str in list)
{
try
{
FtpWebRequest requestUP2 = (FtpWebRequest)WebRequest.Create("ftp://ftpsite.com/folder" + str);
requestUP2.Credentials = new NetworkCredential("UserName", "Password");
requestUP2.Method = WebRequestMethods.Ftp.UploadFile;
requestUP2.KeepAlive = false;
requestUP2.UsePassive = true;
using (Stream fileStream = File.OpenRead("ftp://ftpsite.com/folder" + str))
using (Stream ftpStream = requestUP2.GetRequestStream())
{
fileStream.CopyTo(ftpStream);
}
}
catch (Exception ex1)
{
MessageBox.Show(ex1.Message);
}
}
}
}

The ftp protocol is intended to works on request basis.
You start a request with a method (in your case UploadFile).
The only thing you can do is to KeepAlive your request to avoid connection closing
upldrequest.KeepAlive = true;
on every request you create except the last one. This will make a login only the first FTPWebRequest.
Then when you create the last FTPWebRequest, set
upldrequest.KeepAlive = false;
and it will close the connection when done.

How do I pull the file locations (path and filename) for all files at a given FTP address?

Hi and thanks for looking!
Background
I need to pull the file locations (path and filename) for all files at a given FTP address.
For files on a mapped network or local drive, this code would work:
foreach(string fileName f in Directory.GetFiles("C\\:SomeDirectory"), "*.*",
SearchOption.AllDirectories)
{
//do stuff with each file found
}
But this will NOT work over an FTP connection. I have already found this MS documentation which covers the establishing of an FTPWebRequest, but it does not show me how to loop through each file found (in all nested directories as well).
I am using C# within a forms app.
Question
How do I accomplish this:
foreach(string fileName f in Directory.GetFiles("C\\:SomeDirectory"), "*.*",
SearchOption.AllDirectories)
{
//do stuff with each file found
}
With an FTP connection?
Many thanks!!
UPDATE / Final Answer
Special thanks to #sunk for getting this going. I made a minor tweek to his code that makes it fully recursive so that it can drill into nested folders. Here is the final code:
//A list that holds all file locations in all folders of a given FTP address:
List<string> fnl= new List<string>();
//A string to hold the base FTP address:
string ftpBase = "ftp://[SOME FTP ADDRESS]";
//A button-click event. Can be a stand alone method as well
private void GetFileLocations(object sender, EventArgs e)
{
//Get the file names from the FTP location:
DownloadFileNames(ftpBase);
//Once 'DownloadFileNames' has run, we have populated 'fnl'
foreach(var f in fnl)
{
//do stuff
}
}
//Gets all files in a given FTP address. RECURSIVE METHOD:
public void DownloadFileNames(string ftpAddress)
{
string uri = ftpAddress;
FtpWebRequest reqFTP = (FtpWebRequest)FtpWebRequest.Create(uri);
reqFTP.Credentials = new NetworkCredential("pella", "PellaWA01!");
reqFTP.EnableSsl = false;
reqFTP.KeepAlive = false;
reqFTP.UseBinary = true;
reqFTP.UsePassive = true;
reqFTP.Method = WebRequestMethods.Ftp.ListDirectory;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
Stream responseStream = response.GetResponseStream();
List<string> files = new List<string>();
StreamReader reader = new StreamReader(responseStream);
while (!reader.EndOfStream)
files.Add(reader.ReadLine());
reader.Close();
responseStream.Dispose();
//Loop through the resulting file names.
foreach (var fileName in files)
{
var parentDirectory = "";
//If the filename has an extension, then it actually is
//a file and should be added to 'fnl'.
if (fileName.IndexOf(".") > 0)
{
fnl.Add(ftpAddress.Replace("ftp://pella.upload.akamai.com/140607/pella/", "http://media.pella.com/") + fileName);
}
else
{
//If the filename has no extension, then it is just a folder.
//Run this method again as a recursion of the original:
parentDirectory += fileName + "/";
try
{
DownloadFileNames(ftpAddress + parentDirectory);
}
catch (Exception)
{
//throw;
}
}
}
}

First of all, you have to get the files name local on your machine using FTPWebRequest.
WebRequestMethods.Ftp.ListDirectory;
then use foreach {};
Here is the code:-
public List<string> DownloadFileNames()
{
string uri = "ftp://" + ftpServerIP + "/";
FtpWebRequest reqFTP = (FtpWebRequest)FtpWebRequest.Create(uri);
reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword);
reqFTP.EnableSsl = true;
reqFTP.KeepAlive = false;
reqFTP.UseBinary = true;
reqFTP.UsePassive = Settings.UsePassive;
reqFTP.Method = WebRequestMethods.Ftp.ListDirectory;
ServicePointManager.ServerCertificateValidationCallback = new System.Net.Security.RemoteCertificateValidationCallback(AcceptAllCertifications);
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
Stream responseStream = response.GetResponseStream();
List<string> files = new List<string>();
StreamReader reader = new StreamReader(responseStream);
while (!reader.EndOfStream)
files.Add(reader.ReadLine());
reader.Close();
responseStream.Dispose();
return files;
}
Now you have the List:-
List<string> FileNameList = DownloadFileNames();
foreach (var fileName in FileNameList)
{
}

the ListDirectoryDetails command used in the example just returns a string. You will have to manually parse it to build a list of files and subdirectories.

Found at http://social.msdn.microsoft.com/Forums/en/ncl/thread/079fb811-3c55-4959-85c4-677e4b20bea3
string[] files = GetFileList();
foreach (string file in files)
{
Download(file);
}
public string[] GetFileList()
{
string[] downloadFiles;
StringBuilder result = new StringBuilder();
WebResponse response = null;
StreamReader reader = null;
try
{
FtpWebRequest reqFTP;
reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri("ftp://" + ftpServerIP + "/"));
reqFTP.UseBinary = true;
reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword);
reqFTP.Method = WebRequestMethods.Ftp.ListDirectory;
reqFTP.Proxy = null;
reqFTP.KeepAlive = false;
reqFTP.UsePassive = false;
response = reqFTP.GetResponse();
reader = new StreamReader(response.GetResponseStream());
string line = reader.ReadLine();
while (line != null)
{
result.Append(line);
result.Append("\n");
line = reader.ReadLine();
}
// to remove the trailing '\n'
result.Remove(result.ToString().LastIndexOf('\n'), 1);
return result.ToString().Split('\n');
}
catch (Exception ex)
{
if (reader != null)
{
reader.Close();
}
if (response != null)
{
response.Close();
}
downloadFiles = null;
return downloadFiles;
}
}
private void Download(string file)
{
try
{
string uri = "ftp://" + ftpServerIP + "/" + remoteDir + "/" + file;
Uri serverUri = new Uri(uri);
if (serverUri.Scheme != Uri.UriSchemeFtp)
{
return;
}
FtpWebRequest reqFTP;
reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri("ftp://" + ftpServerIP + "/" + remoteDir + "/" + file));
reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword);
reqFTP.KeepAlive = false;
reqFTP.Method = WebRequestMethods.Ftp.DownloadFile;
reqFTP.UseBinary = true;
reqFTP.Proxy = null;
reqFTP.UsePassive = false;
FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
Stream responseStream = response.GetResponseStream();
FileStream writeStream = new FileStream(localDestnDir + "\" + file, FileMode.Create);
int Length = 2048;
Byte[] buffer = new Byte[Length];
int bytesRead = responseStream.Read(buffer, 0, Length);
while (bytesRead > 0)
{
writeStream.Write(buffer, 0, bytesRead);
bytesRead = responseStream.Read(buffer, 0, Length);
}
writeStream.Close();
response.Close();
}
catch (WebException wEx)
{
MessageBox.Show(wEx.Message, "Download Error");
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Download Error");
}
}