PowerBuilder

SCP Download/Upload Binary Files as Encoded Strings

See more SCP Examples

Demonstrates how to upload and download binary files as encoded strings (base64, hex, etc.) using the SCP protocol (Secure Copy Protocol over SSH). PowerBuilder

integer li_rc
integer li_Success
oleobject loo_Ssh
string ls_Hostname
integer li_Port
oleobject loo_Scp
string ls_RemotePath
string ls_EncodedJpg

li_Success = 0

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

loo_Ssh = create oleobject
li_rc = loo_Ssh.ConnectToNewObject("Chilkat.Ssh")
if li_rc < 0 then
    destroy loo_Ssh
    MessageBox("Error","Connecting to COM object failed")
    return
end if

// Hostname may be an IP address or hostname:
ls_Hostname = "www.some-ssh-server.com"
li_Port = 22

// Connect to an SSH server:
li_Success = loo_Ssh.Connect(ls_Hostname,li_Port)
if li_Success <> 1 then
    Write-Debug loo_Ssh.LastErrorText
    destroy loo_Ssh
    return
end if

// Wait a max of 5 seconds when reading responses..
loo_Ssh.IdleTimeoutMs = 5000

// Authenticate using login/password:
li_Success = loo_Ssh.AuthenticatePw("myLogin","myPassword")
if li_Success <> 1 then
    Write-Debug loo_Ssh.LastErrorText
    destroy loo_Ssh
    return
end if

// Once the SSH object is connected and authenticated, we use it
// in our SCP object.
loo_Scp = create oleobject
li_rc = loo_Scp.ConnectToNewObject("Chilkat.Scp")

li_Success = loo_Scp.UseSsh(loo_Ssh)
if li_Success <> 1 then
    Write-Debug loo_Scp.LastErrorText
    destroy loo_Ssh
    destroy loo_Scp
    return
end if

ls_RemotePath = "images/starfish.jpg"

// Download the binary file and return as a base64 string.
// See <a href="http://www.cknotes.com/chilkat-binary-encoding-list/">List of Encodings</a> for a list of possible encodings.
ls_EncodedJpg = loo_Scp.DownloadBinaryEncoded(ls_RemotePath,"base64")
if loo_Scp.LastMethodSuccess <> 1 then
    Write-Debug loo_Scp.LastErrorText
    destroy loo_Ssh
    destroy loo_Scp
    return
end if

ls_RemotePath = "images/starfish2.jpg"

// Now upload from the base64 string to the SSH server.
// Insided the call to UploadBinaryEncoded, the base64 string is decoded,
// and the decoded bytes are uploaded.  The resulting starfish2.jpg on the
// server will be identical to the original starfish.jpg
li_Success = loo_Scp.UploadBinaryEncoded(ls_RemotePath,ls_EncodedJpg,"base64")
if li_Success <> 1 then
    Write-Debug loo_Scp.LastErrorText
    destroy loo_Ssh
    destroy loo_Scp
    return
end if

Write-Debug "SCP download/upload binary encoded success."

// Disconnect
loo_Ssh.Disconnect()


destroy loo_Ssh
destroy loo_Scp