(Ruby) SCP Download/Upload Binary Files as Encoded Strings

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

Chilkat Ruby Downloads install from rubygems.org gem install chilkat or download... Ruby Library for Windows, MacOS, Linux, Alpine Linux

require 'chilkat'

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

ssh = Chilkat::CkSsh.new()

# Hostname may be an IP address or hostname:
hostname = "www.some-ssh-server.com"
port = 22

# Connect to an SSH server:
success = ssh.Connect(hostname,port)
if (success != true)
    print ssh.lastErrorText() + "\n";
    exit
end

# Wait a max of 5 seconds when reading responses..
ssh.put_IdleTimeoutMs(5000)

# Authenticate using login/password:
success = ssh.AuthenticatePw("myLogin","myPassword")
if (success != true)
    print ssh.lastErrorText() + "\n";
    exit
end

# Once the SSH object is connected and authenticated, we use it
# in our SCP object.
scp = Chilkat::CkScp.new()

success = scp.UseSsh(ssh)
if (success != true)
    print scp.lastErrorText() + "\n";
    exit
end

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.
encodedJpg = scp.downloadBinaryEncoded(remotePath,"base64")
if (scp.get_LastMethodSuccess() != true)
    print scp.lastErrorText() + "\n";
    exit
end

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
success = scp.UploadBinaryEncoded(remotePath,encodedJpg,"base64")
if (success != true)
    print scp.lastErrorText() + "\n";
    exit
end

print "SCP download/upload binary encoded success." + "\n";

# Disconnect
ssh.Disconnect()