FOG Snapin Client download error

Timo

My Topic aka question is not too upload the Snapin, it is to DOWNLOAD the snapin to the Windows Client via Task

Timo

@Wayne-Workman said in FOG Snapin Client download error:

@Timo Am I correct in assuming you can now upload the snapin to FOG, but the client will not download it?

Yes!

Wayne Workman

@Timo Ok then… apologies, it wasn’t totally clear to me. I’m informing @Jbob about it to see what he says then.

Joe Schmitt

Redirecting ping to @Tom-Elliott, this is most likely a server issue.

Sebastian Roth

@Timo said:

…Section=ResponseHeader Detail=“Content-Length”-Headerwert ist ungültig…

This translates to “value of Content-Length header is invalid”! Possibly .Net does not like such a big value??

Timo

Good Morning, this MOrning i’ve updated to latest GIT 7242. Now when i try to download the Snapin via Basic Task “Single Snapin” it comes up in the Log with " Unable to hash file, The file is too long. This process currently only supports files with a size of less than 2 GB.

So i think at this time it is not possible… !!!

Timo

@Sebastian-Roth said in FOG Snapin Client download error:

@Timo said:

…Section=ResponseHeader Detail=“Content-Length”-Headerwert ist ungültig…

This translates to “value of Content-Length header is invalid”! Possibly .Net does not like such a big value??

Is it possible to increase that? If so, where i can change that value?

Tom Elliott

@Timo Can you simply try updating? I removed the Content-Length setter in hopes that is all it takes to fix the issue at hand.

Timo

@Tom-Elliott said in FOG Snapin Client download error:

@Timo Can you simply try updating? I removed the Content-Length setter in hopes that is all it takes to fix the issue at hand.

I#ve just updated to 7246 via GIT, but unfortunately the same error in Log, unable to hash File, The file is too long. This process currently only supports files with a size of less than 2 GB.

Timo

GIT 7248 the same…just forgot one thing from the Error Log Service Error:“Object reference not set to an object instance”

Sebastian Roth

@Timo Can you please post the full error you see (line number, …). Maybe even post a picture.

Timo

Sure i can, thx for your help, i really appreciate it

Sebastian Roth

@Timo This seems to be a restriction in C# following the discussion here: http://www.codeproject.com/Questions/142532/appending-and-splitting-files-larger-than-gb

Possibly this is only happening because you have 32 bit Windows installed?? Please check! Or this might be a general restriction and we need to read large snapin files as chunks, @Jbob?

Timo

@Sebastian-Roth said in FOG Snapin Client download error:

@Timo This seems to be a restriction in C# following the discussion here: http://www.codeproject.com/Questions/142532/appending-and-splitting-files-larger-than-gb

Possibly this is only happening because you have 32 bit Windows installed?? Please check! Or this might be a general restriction and we need to read large snapin files as chunks, @Jbob?

Hi Sebastian, no the Client runs an Windows 7 x64 Installation

Joe Schmitt

@Timo the original header problem is fixed. @Sebastian-Roth is correct in that the hashing error is a limitation of c#. I’ll see what I can do.

Joe Schmitt

@Timo for now you could set the snapin file to a batch script which downloads the exe from a samaba share or something and runs it.

Timo

@Jbob said in FOG Snapin Client download error:

@Timo for now you could set the snapin file to a batch script which downloads the exe from a samaba share or something and runs it.

Hi Jbob thx for your help. How can i realize that? I’ve an Synology NAS where i can store that, do you have an example script, maybe?

Joe Schmitt

@Timo Batch lacks the ability to download a file natively. Here is a vbs script which should do what you are looking for.

Save the code as “Bootstrap.vbs”, and update the http://fog-server/MyProgram.exe line to reflect a real URL where your snapin can be downloaded, the easiest way may be to just copy your snapin file to /var/www/html/, and then it is accessible via http://{fog-server}/MyProgram.exe, where Myprogram.exe is the file name. Also update references to MyProgram.exe to your program’s file name.

Note that this code is untested.

Use the following snapin settings:
Snapin Run With: cscript
Snapin Run With Args: //B //Nologo
Snapin File: Bootstrap.vbs

Bootstrap.vbs code:

'http://www.robvanderwoude.com/vbstech_internet_download.php

HTTPDownload "http://fog-server/MyProgram.exe", "C:\"

Dim objShell
Set objShell = WScript.CreateObject( "WScript.Shell" )
objShell.Run("C:\MyProgram.exe")
Set objShell = Nothing


Dim fso
Set fso = CreateObject("Scripting.FileSystemObject")
fso.DeleteFile("C:\MyProgram.exe")
Set fso = Nothing


Sub HTTPDownload( myURL, myPath )
' This Sub downloads the FILE specified in myURL to the path specified in myPath.
'
' myURL must always end with a file name
' myPath may be a directory or a file name; in either case the directory must exist
'
' Written by Rob van der Woude
' http://www.robvanderwoude.com
'
' Based on a script found on the Thai Visa forum
' http://www.thaivisa.com/forum/index.php?showtopic=21832

    ' Standard housekeeping
    Dim i, objFile, objFSO, objHTTP, strFile, strMsg
    Const ForReading = 1, ForWriting = 2, ForAppending = 8

    ' Create a File System Object
    Set objFSO = CreateObject( "Scripting.FileSystemObject" )

    ' Check if the specified target file or folder exists,
    ' and build the fully qualified path of the target file
    If objFSO.FolderExists( myPath ) Then
        strFile = objFSO.BuildPath( myPath, Mid( myURL, InStrRev( myURL, "/" ) + 1 ) )
    ElseIf objFSO.FolderExists( Left( myPath, InStrRev( myPath, "\" ) - 1 ) ) Then
        strFile = myPath
    Else
        WScript.Echo "ERROR: Target folder not found."
        Exit Sub
    End If

    ' Create or open the target file
    Set objFile = objFSO.OpenTextFile( strFile, ForWriting, True )

    ' Create an HTTP object
    Set objHTTP = CreateObject( "WinHttp.WinHttpRequest.5.1" )

    ' Download the specified URL
    objHTTP.Open "GET", myURL, False
    objHTTP.Send

    ' Write the downloaded byte stream to the target file
    For i = 1 To LenB( objHTTP.ResponseBody )
        objFile.Write Chr( AscB( MidB( objHTTP.ResponseBody, i, 1 ) ) )
    Next

    ' Close the target file
    objFile.Close( )
End Sub

Wayne Workman

I’d opt for a batch file still as a stop-gap.

use xcopy to get the file. it supports UNC paths.

Timo

@Jbob said in FOG Snapin Client download error:

@Timo Batch lacks the ability to download a file natively. Here is a vbs script which should do what you are looking for.

Save the code as “Bootstrap.vbs”, and update the http://fog-server/MyProgram.exe line to reflect a real URL where your snapin can be downloaded, the easiest way may be to just copy your snapin file to /var/www/html/, and then it is accessible via http://{fog-server}/MyProgram.exe, where Myprogram.exe is the file name. Also update references to MyProgram.exe to your program’s file name.

Note that this code is untested.

Use the following snapin settings:
Snapin Run With: cscript
Snapin Run With Args: //B //Nologo
Snapin File: Bootstrap.vbs

Bootstrap.vbs code:

'http://www.robvanderwoude.com/vbstech_internet_download.php

HTTPDownload "http://fog-server/MyProgram.exe", "C:\"

Dim objShell
Set objShell = WScript.CreateObject( "WScript.Shell" )
objShell.Run("C:\MyProgram.exe")
Set objShell = Nothing


Dim fso
Set fso = CreateObject("Scripting.FileSystemObject")
fso.DeleteFile("C:\MyProgram.exe")
Set fso = Nothing


Sub HTTPDownload( myURL, myPath )
' This Sub downloads the FILE specified in myURL to the path specified in myPath.
'
' myURL must always end with a file name
' myPath may be a directory or a file name; in either case the directory must exist
'
' Written by Rob van der Woude
' http://www.robvanderwoude.com
'
' Based on a script found on the Thai Visa forum
' http://www.thaivisa.com/forum/index.php?showtopic=21832

    ' Standard housekeeping
    Dim i, objFile, objFSO, objHTTP, strFile, strMsg
    Const ForReading = 1, ForWriting = 2, ForAppending = 8

    ' Create a File System Object
    Set objFSO = CreateObject( "Scripting.FileSystemObject" )

    ' Check if the specified target file or folder exists,
    ' and build the fully qualified path of the target file
    If objFSO.FolderExists( myPath ) Then
        strFile = objFSO.BuildPath( myPath, Mid( myURL, InStrRev( myURL, "/" ) + 1 ) )
    ElseIf objFSO.FolderExists( Left( myPath, InStrRev( myPath, "\" ) - 1 ) ) Then
        strFile = myPath
    Else
        WScript.Echo "ERROR: Target folder not found."
        Exit Sub
    End If

    ' Create or open the target file
    Set objFile = objFSO.OpenTextFile( strFile, ForWriting, True )

    ' Create an HTTP object
    Set objHTTP = CreateObject( "WinHttp.WinHttpRequest.5.1" )

    ' Download the specified URL
    objHTTP.Open "GET", myURL, False
    objHTTP.Send

    ' Write the downloaded byte stream to the target file
    For i = 1 To LenB( objHTTP.ResponseBody )
        objFile.Write Chr( AscB( MidB( objHTTP.ResponseBody, i, 1 ) ) )
    Next

    ' Close the target file
    objFile.Close( )
End Sub

Hi there, at this moment i’m trying your script but i think it hangs in the download it now takes over 10 minutes, but i have no status window what is happening. The download from my fogserver manually tested runs fine

FOG Snapin Client download error

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