PowerShell Connect to FTP server and get files

Question

ftpServer    ftp example com   username   validUser   password   myPassword   localToFTPPath    C  ToFTP   localFromFTPPath    C  FromFTP   remotePickupDir     Inbox   remoteDropDir     Outbox   SSLMode    AlexPilotti FTPS Client ESSLSupportMode   ClearText  ftp   new-object  AlexPilotti FTPS Client FTPSClient   cred   New-Object System Net NetworkCredential  username  password   ftp Connect  ftpServer  cred  SSLMode   Connect  ftp SetCurrentDirectory  remotePickupDir   ftp GetFiles  localFromFTPPath   false   Get Files   This is the script I got for importing files from an FTP server  However I am not sure what is the remotePickupDir and is this script correct

User · Answer

For retrieving files  folder from FTP via powerShell I wrote some functions  you can get even hidden stuff from FTP   Example for getting all files which are not hidden in a specific folder   Get-FtpChildItem -ftpFolderPath  ftp   myHost com root leaf   -userName  User  -password  pw  -hidden  false -File   Example for getting all folders also hidden  in a specific folder   Get-FtpChildItem -ftpFolderPath ftp   myHost com root leaf   -userName  User  -password  pw  -Directory   You can just copy the functions from the following module without needing and 3rd library installing  https   github com AstralisSomnium PowerShell-No-Library-Just-Functions blob master FTPModule ps1

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Invoke-WebRequest can download HTTP  HTTPS  and FTP links   source    ftp   Blah com somefile txt   target    C  Users someuser Desktop BlahFiles somefile txt   password   Microsoft PowerShell Security ConvertTo-SecureString -String  mypassword  -AsPlainText -Force  credential   New-Object -TypeName System Management Automation PSCredential -ArgumentList myuserid   password    Download Invoke-WebRequest -Uri  source -OutFile  target -Credential  credential -UseBasicParsing  Since the cmdlet uses IE parsing you may need the -UseBasicParsing switch  Test to make sure

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Here is the full working code to download all files  with wildcard or file extension  from the FTP site to local directory  Set the variable values         FTP Server Information - SET VARIABLES      ftp    ftp   XXX com         user    UserName        pass    Password       folder    FTP Folder       target    C  Folder Folder1         SET CREDENTIALS      credentials   new-object System Net NetworkCredential  user   pass       function Get-FtpDir   url  credentials             request    Net WebRequest   Create  url           request Method    System Net WebRequestMethods FTP   ListDirectory         if   credentials     request Credentials    credentials            response    request GetResponse            reader   New-Object IO StreamReader  response GetResponseStream            while -not  reader EndOfStream                 reader ReadLine                       reader ReadToEnd            reader Close            response Close               SET FOLDER PATH      folderPath   ftp          folder             files   Get-FTPDir -url  folderPath -credentials  credentials       files        webclient   New-Object System Net WebClient       webclient Credentials   New-Object System Net NetworkCredential  user  pass        counter   0     foreach   file in   files   where     -like    txt               source  folderPath    file            destination    target    file           webclient DownloadFile  source   target  file            PRINT FILE NAME AND COUNTER          counter            counter          source

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The remotePickupDir would be the folder you want to go to on the ftp server   As far as  is this script correct   well  does it work   If it works then it s correct   If it does not work  then tell us what error message or unexpected behaviour you re getting and we ll be better able to help you

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The AlexFTPS library used in the question seems to be dead  was not updated since 2011      With no external libraries  You can try to implement this without any external library  But unfortunately  neither the  NET Framework nor PowerShell have any explicit support for downloading all files in a directory  let only recursive file downloads    You have to implement that yourself    List the remote directory Iterate the entries  downloading files  and optionally recursing into subdirectories - listing them again  etc     Tricky part is to identify files from subdirectories  There s no way to do that in a portable way with the  NET framework  FtpWebRequest or WebClient   The  NET framework unfortunately does not support the MLSD command  which is the only portable way to retrieve directory listing with file attributes in FTP protocol  See also Checking if object on FTP server is file or directory   Your options are    If you know that the directory does not contain any subdirectories  use the ListDirectory method  NLST FTP command  and simply download all the  names  as files  Do an operation on a file name that is certain to fail for file and succeeds for directories  or vice versa   I e  you can try to download the  name   You may be lucky and in your specific case  you can tell a file from a directory by a file name  i e  all your files have an extension  while subdirectories do not  You use a long directory listing  LIST command   ListDirectoryDetails method  and try to parse a server-specific listing  Many FTP servers use  nix-style listing  where you identify a directory by the d at the very beginning of the entry  But many servers use a different format  The following example uses this approach  assuming the  nix format      function DownloadFtpDirectory  url   credentials   localPath         listRequest    Net WebRequest   Create  url       listRequest Method    System Net WebRequestMethods Ftp   ListDirectoryDetails      listRequest Credentials    credentials       lines   New-Object System Collections ArrayList       listResponse    listRequest GetResponse        listStream    listResponse GetResponseStream        listReader   New-Object System IO StreamReader  listStream      while    listReader EndOfStream                 line    listReader ReadLine            lines Add  line    Out-Null            listReader Dispose        listStream Dispose        listResponse Dispose        foreach   line in  lines                 tokens    line Split      9   StringSplitOptions   RemoveEmptyEntries           name    tokens 8           permissions    tokens 0            localFilePath   Join-Path  localPath  name          fileUrl     url    name           if   permissions 0  -eq  d                         if    Test-Path  localFilePath -PathType container                                 Write-Host  Creating directory  localFilePath                  New-Item  localFilePath -Type directory   Out-Null                            DownloadFtpDirectory   fileUrl         credentials  localFilePath                   else                       Write-Host  Downloading  fileUrl to  localFilePath                downloadRequest    Net WebRequest   Create  fileUrl               downloadRequest Method    System Net WebRequestMethods Ftp   DownloadFile              downloadRequest Credentials    credentials               downloadResponse    downloadRequest GetResponse                sourceStream    downloadResponse GetResponseStream                targetStream    System IO File   Create  localFilePath               buffer   New-Object byte   10240             while    read    sourceStream Read  buffer  0   buffer Length   -gt 0                                 targetStream Write  buffer  0   read                              targetStream Dispose                sourceStream Dispose                downloadResponse Dispose                       Use the function like    credentials   New-Object System Net NetworkCredential  user    mypassword     url    ftp   ftp example com directory to download   DownloadFtpDirectory  url  credentials  C  target directory    The code is translated from my C  example in C  Download all files and subdirectories through FTP     Using 3rd party library  If you want to avoid troubles with parsing the server-specific directory listing formats  use a 3rd party library that supports the MLSD command and or parsing various LIST listing formats  And ideally with a support for downloading all files from a directory or even recursive downloads   For example with WinSCP  NET assembly you can download whole directory with a single call to Session GetFiles     Load WinSCP  NET assembly Add-Type -Path  WinSCPnet dll     Setup session options  sessionOptions   New-Object WinSCP SessionOptions -Property        Protocol    WinSCP Protocol   Ftp     HostName    ftp example com      UserName    user      Password    mypassword      session   New-Object WinSCP Session  try         Connect      session Open  sessionOptions         Download files      session GetFiles   directory to download      C  target directory     Check     finally         Disconnect  clean up      session Dispose           Internally  WinSCP uses the MLSD command  if supported by the server  If not  it uses the LIST command and supports dozens of different listing formats   The Session GetFiles method is recursive by default    I m the author of WinSCP

User · Answer

Remote pick directory path should be the exact path on the ftp server you are tryng to access   here is the script to download files from the server   you can add or modify with SSLMode     ftp server   ftp    ftp   example com     user    XX    pass    XXX   SetType    bin     remotePickupDir   Get-ChildItem  c  test  -recurse  webclient   New-Object System Net WebClient    webclient Credentials   New-Object System Net NetworkCredential  user  pass    foreach  item in  remotePickupDir         uri   New-Object System Uri  ftp  item Name         webclient UploadFile  uri  item FullName       webclient DownloadFile  uri  item FullName

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Based on Why does FtpWebRequest download files from the root directory  Can this cause a 553 error   I wrote a PowerShell script that enabled to download a file from a FTP-Server via explicit FTP over TLS    Config  Username    quot USERNAME quot   Password    quot PASSWORD quot   LocalFile    quot C  PATH TO DIR FILNAME EXT quot   e g   quot C  temp somefile txt quot   RemoteFile    quot ftp   PATH TO REMOTE FILE quot   e g   quot ftp   ftp server com home some path somefile txt quot   try         Create a FTPWebRequest      FTPRequest    System Net FtpWebRequest   Create  RemoteFile       FTPRequest Credentials   New-Object System Net NetworkCredential  Username  Password       FTPRequest Method    System Net WebRequestMethods Ftp   DownloadFile      FTPRequest UseBinary    true      FTPRequest KeepAlive    false      FTPRequest EnableSsl     true       Send the ftp request      FTPResponse    FTPRequest GetResponse         Get a download stream from the server response      ResponseStream    FTPResponse GetResponseStream         Create the target file on the local system and the download buffer      LocalFileFile   New-Object IO FileStream   LocalFile  IO FileMode   Create       byte    ReadBuffer   New-Object byte   1024       Loop through the download      do            ReadLength    ResponseStream Read  ReadBuffer 0 1024           LocalFileFile Write  ReadBuffer 0  ReadLength            while   ReadLength -ne 0   catch  Exception         Request      Exception     Write-host  quot Exception caught   Request quot

[powershell] PowerShell Connect to FTP server and get files

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