Get-FtpFile.ps1
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function Get-FtpFile() { <# .SYNOPSIS ����ftp�ļ�, Get-FTPItem ���ļ�̫��,��Ҫ�� .DESCRIPTION Get-FtpFile -Username $FtpUsername -Password $FtpPassword -RemoteFile "ftp://thomasmaurer.ch/downloads/files/file.zip" -LocalFile "C:\Temp\file.zip" #> [CmdletBinding()] param ( [Parameter(Mandatory)][string]$Username, [Parameter(Mandatory)][string]$Password, [Parameter(Mandatory)][string]$RemoteFile, [Parameter(Mandatory)][string]$LocalFile ) # $Username = "FTPUSER" # $Password = "P@assw0rd" # $LocalFile = "C:\Temp\file.zip" # $RemoteFile = "ftp://thomasmaurer.ch/downloads/files/file.zip" # 3-1 ���� 0 ���Խ��� -1 ����ִ����ϵĽ�� $tryIfFail = 3 do { try { # GetFileSize $GetSizeRequest = [System.Net.FtpWebRequest]::Create($RemoteFile) $GetSizeRequest.Credentials = New-Object System.Net.NetworkCredential($Username,$Password) $GetSizeRequest.Method = [System.Net.WebRequestMethods+Ftp]::GetFileSize $GetSizeRequest.KeepAlive = $false $bytes_total = [long]$GetSizeRequest.GetResponse().ContentLength; $TotalWriteLength = [long]0; # 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 # ������ģʽ���� $FTPRequest.UseBinary = $true # ������ɺ�ر����� $FTPRequest.KeepAlive = $false if((Test-Path -Path $LocalFile) -eq $false) { # Create the target file on the local system and the download buffer $LocalFileStream = New-Object IO.FileStream ($LocalFile,[IO.FileMode]::Create) }else{ $FTPRequest.ContentOffset = (Get-Item $LocalFile).Length $TotalWriteLength += (Get-Item $LocalFile).Length $LocalFileStream = New-Object IO.FileStream ($LocalFile,[IO.FileMode]::Append) } # Send the ftp request $FTPResponse = $FTPRequest.GetResponse() # Get a download stream from the server response $ResponseStream = $FTPResponse.GetResponseStream() $bufferSize = 1024 * 32 [byte[]]$ReadBuffer = New-Object byte[] $bufferSize # Loop through the download do { $ReadLength = $ResponseStream.Read($ReadBuffer,0,$ReadBuffer.Length) $LocalFileStream.Write($ReadBuffer,0,$ReadLength) $TotalWriteLength += $ReadLength; $PercentComplete = [int][math]::floor($TotalWriteLength / $bytes_total * 100) Write-Progress -Activity "download in Progress" -Status "$PercentComplete% Complete: $([int][math]::floor($TotalWriteLength / 1024 / 1024 )) MB $ReadLength $((Get-Random).ToString()[-1])" -PercentComplete $PercentComplete } while ($ReadLength -ne 0) $tryIfFail = -1 } catch{ $tryIfFail -- Write-Output $_ if($tryIfFail -gt 0) { Write-Output "3 �������" Start-Sleep -Seconds 5 } else { Throw $_ } } finally { if($LocalFileStream -ne $null) { $LocalFileStream.Close(); } if($ResponseStream -ne $null) { $ResponseStream.Close(); } try { # Exception calling "Close" with "0" argument(s): "The remote server returned an error: (451) Local error in processing. # �ر� ftp ����ʱ,���ܱ��� if($FTPResponse -ne $null) { $FTPResponse.Close(); } } catch{} } }while($tryIfFail -gt 0) } |