(Lianja) SCP Upload Contents of String to Remote File

Demonstrates how to upload the contents of a string variable using the SCP protocol (Secure Copy Protocol over SSH). The text is uploaded to a file in specific remote directory. If the file did not already exist, it is created. If it already existed, it is overwritten.

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

loSsh = createobject("CkSsh")

// Connect to an SSH server:

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

llSuccess = loSsh.Connect(lcHostname,lnPort)
if (llSuccess <> .T.) then
    ? loSsh.LastErrorText
    release loSsh
    return
endif

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

// Authenticate using login/password:
llSuccess = loSsh.AuthenticatePw("myLogin","myPassword")
if (llSuccess <> .T.) then
    ? loSsh.LastErrorText
    release loSsh
    return
endif

// Once the SSH object is connected and authenticated, we use it
// as the underlying transport in our SCP object.
loScp = createobject("CkScp")

llSuccess = loScp.UseSsh(loSsh)
if (llSuccess <> .T.) then
    ? loScp.LastErrorText
    release loSsh
    release loScp
    return
endif

lcContent = "This string will be the contents of the remote file."
lcRemotePath = "uploads/text/testUtf8.txt"

// The utf-8 byte representation of the string will be uploaded.
// See https://www.chilkatsoft.com/p/p_463.asp for a list of valid charsets.
lcCharset = "utf-8"

// This uploads to the "uploads/text" directory relative to the HOME
// directory of the SSH user account.  
// Note: The remote target directory must already exist on the SSH server.
llSuccess = loScp.UploadString(lcRemotePath,lcContent,lcCharset)
if (llSuccess <> .T.) then
    ? loScp.LastErrorText
    release loSsh
    release loScp
    return
endif

lcRemotePath = "uploads/text/testUtf8_withBOM.txt"

// To include the utf-8 preamble (also known as the BOM),
// prefix the charset name with "bom:".  Any charset that can 
// optionally include a BOM can be specified in this way.
lcCharset = "bom:utf-8"

// Uploads to a remote file that contains text in the 
// utf-8 representation, including the BOM at the start of the file.
llSuccess = loScp.UploadString(lcRemotePath,lcContent,lcCharset)
if (llSuccess <> .T.) then
    ? loScp.LastErrorText
    release loSsh
    release loScp
    return
endif

? "SCP upload string success."

// Disconnect
loSsh.Disconnect()


release loSsh
release loScp