Can't copy ftp files from azure app service to local with powershell

MoTaar 310

Is there a script that allows to copy ftp files from azure app service to local or to azure fileshare?

I tried several ones but none of them worked.

Thank you!

Lex Li (Microsoft) 5,837 Reputation points Microsoft Employee

2023-12-08T02:09:52.18+00:00

What have you tried? Now FTPS (FTP over SSL) should be the default, so you do need to write your PowerShell script to perform FTPS connections, instead of legacy and insecure FTP.
MoTaar 310 Reputation points

2023-12-08T13:40:15.61+00:00
@Lex Li here is one of them:

az login

az webapp log download --resource-group myresourcegroup --name mywebapp --log-file site/wwwroot/SourcFolder

And this gives error as folder not found.

1 answer

brtrach-MSFT 17,166 Reputation points Microsoft Employee

2023-12-09T01:33:41.3766667+00:00
@MoTaar To copy files from an Azure App Service to a local machine or to an Azure file share, you can use FTPS (FTP over SSL). Here's an example PowerShell script that uses FTPS to download files from an Azure App Service to a local machine:

# Replace the values below with your own $resourceGroupName = "myResourceGroup" $appName = "myAppService" $username = "username" $password = "password" $localPath = "C:\local\path" $remotePath = "/site/wwwroot/remote/path" # Connect to the Azure App Service using FTPS $ftpsUri = "ftps://$appName.ftp.azurewebsites.windows.net/$remotePath" $ftpsRequest = [System.Net.FtpWebRequest]::Create($ftpsUri) $ftpsRequest.Credentials = New-Object System.Net.NetworkCredential($username, $password) $ftpsRequest.Method = [System.Net.WebRequestMethods+Ftp]::DownloadFile $ftpsRequest.EnableSsl = $true # Download the files $response = $ftpsRequest.GetResponse() $stream = $response.GetResponseStream() $localFilePath = Join-Path $localPath (Split-Path $ftpsRequest.RequestUri.LocalPath -Leaf) $stream.ReadTimeout = 10000 $buffer = New-Object byte[] 1024 $fs = New-Object System.IO.FileStream($localFilePath,[System.IO.FileMode]::Create) while (($read = $stream.Read($buffer,0,$buffer.Length)) -gt 0) { $fs.Write($buffer,0,$read) } $fs.Close() $response.Close() Write-Host "Files downloaded to $localFilePath"

Make sure to replace the values for $resourceGroupName, $appName, $username, $password, $localPath, and $remotePath with your own values.

If you're still having trouble, please let me know and provide more details about the issues you're facing.
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MoTaar 310 Reputation points

2023-12-11T14:38:10.17+00:00

Thank you @brtrach-MSFT I tried with this code and I am blocked in:

$ftpsRequest = [System.Net.FtpWebRequest]::Create($ftpsUri)

I tried with the one you gave and doubled check the variable values they are correct, also I tried with as url the ftps endpoint of the app service from azure also not woking.
Here is the error I keep getting:

Exception calling "Create" with "1" argument(s): "The URI prefix is not recognized." At line:1 char:1 + $ftpsRequest = [System.Net.FtpWebRequest]::Create($ftpsUri) + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : NotSpecified: (:) [], MethodInvocationException + FullyQualifiedErrorId : NotSupportedException

MoTaar 310 Reputation points

2023-12-11T15:46:22.4+00:00

I tried again with the url of the ftps endpoint of the app service from azure but this time with ftp:

$ftpsUri = "ftp://...."

it worked but I got this error in step:

$response = $ftpsRequest.GetResponse()

Exception calling "GetResponse" with "0" argument(s): "The remote server returned an error: (530) Not logged in." At line:1 char:1 + $response = $ftpsRequest.GetResponse() + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : NotSpecified: (:) [], MethodInvocationException + FullyQualifiedErrorId : WebException

I double checked the username and password and even created new ones and also added:

$Secpwd = ConvertTo-SecureString $password -AsPlainText -Force

but with no result. Any help please!

MoTaar 310 Reputation points

2023-12-11T19:40:21.7633333+00:00

I found what I was doing wrong in azure deployment the credentials are in form of Sitename/username and I was copying everything. now By taking only username it worked.

But I am not able to download the directory with its subdiroctories. I able to download only a file at a time. Any idea please?

When I put the path as directory I am getting this error:

Exception calling "GetResponse" with "0" argument(s): "The remote server returned an error: (550) File unavailable (e.g., file not found, no access)." At line:1 char:1 + $response = $ftpsRequest.GetResponse() + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : NotSpecified: (:) [], MethodInvocationException + FullyQualifiedErrorId : WebException

brtrach-MSFT 17,166 Reputation points Microsoft Employee

2023-12-15T03:50:47.1566667+00:00

It's great to hear that you were able to resolve the issue with the credentials. Regarding your question about downloading a directory with its subdirectories, you can modify the PowerShell script I provided earlier to download all files in a directory and its subdirectories recursively. Here's an example script that does this:

#Replace the values below with your own

$resourceGroupName = "myResourceGroup" $appName = "myAppService" $username = "username" $password = "password" $localPath = "C:\local\path" $remotePath = "/site/wwwroot/remote/path"

#Connect to the Azure App Service using FTPS

$ftpsUri = "ftps://$appName.ftp.azurewebsites.windows.net/$remotePath" $ftpsRequest = [System.Net.FtpWebRequest]::Create($ftpsUri) $ftpsRequest.Credentials = New-Object System.Net.NetworkCredential($username, $password) $ftpsRequest.Method = [System.Net.WebRequestMethods+Ftp]::ListDirectoryDetails $ftpsRequest.EnableSsl = $true

#Get the list of files and directories

$response = $ftpsRequest.GetResponse() $stream = $response.GetResponseStream() $reader = New-Object System.IO.StreamReader($stream) $files = @() while (!$reader.EndOfStream) { $line = $reader.ReadLine() $files += $line } $response.Close()

#Download the files

foreach ($file in $files) { $fileName = $file.Split(' ')[-1] $fileType = $file.Substring(0, 1) if ($fileType -eq "d") { # Download the subdirectory recursively $subRemotePath = "$remotePath/$fileName" $subLocalPath = Join-Path $localPath $fileName New-Item -ItemType Directory -Force -Path $subLocalPath & ".\download.ps1" -resourceGroupName $resourceGroupName -appName $appName -username $username -password $password -localPath $subLocalPath -remotePath $subRemotePath } else { # Download the file $ftpsUri = "ftps://$appName.ftp.azurewebsites.windows.net/$remotePath/$fileName" $ftpsRequest = [System.Net.FtpWebRequest]::Create($ftpsUri) $ftpsRequest.Credentials = New-Object

MoTaar 310 Reputation points

2023-12-22T17:25:54.94+00:00

Hello @brtrach-MSFT can you please review your last script, I think it's missing some parts.

Thank you!
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