PHP

IMAP over Multiple Hop SSH

Demonstrates how to read IMAP email (using TCP or TLS) tunneled through mulitple-hop SSH. The scheme looks like this:

Application => ServerSSH1 => ServerSSH2 => IMAPServer

The ConnectThroughSsh and UseSsh methods are added in Chilkat version 9.5.0.55 to accomplish this task.

Chilkat2 PHP

<?php

use Chilkat2\Imap;
use Chilkat2\Ssh;

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

$ssh1 = new Ssh();

// Connect directly to the 1st SSH server.
try {
    $ssh1->Connect('serverssh1.com', 22);

    // Authenticate using login/password:
    $ssh1->AuthenticatePw('ssh1Login', 'ssh1Password');

    // Connect through the 1st SSH connection to reach a 2nd SSH server.
    // Note: Any number of SSH connections may be simultaneously tunneled through a single
    // existing SSH connection.
    $ssh2 = new Ssh();
    $ssh2->ConnectThroughSsh($ssh1, 'serverssh2.com', 22);

    // Authenticate with ssh2...
    $ssh2->AuthenticatePw('ssh2Login', 'ssh2Password');

    $imap = new Imap();

    // Tell the IMAP object to connect to the IMAP server though the ssh2 tunnel (which itself is routed through ssh1).
    // The connection looks like this:  Application => ServerSSH1 => ServerSSH2 => IMAPServer
    $imap->UseSsh($ssh2);

    $imap->Ssl = true;
    $imap->Port = 993;

    // Connect to an IMAP server (through the multi-hop SSH tunnel)
    $imap->Connect('imap.someimapserver.com');

    // Login
    $imap->Login('myLogin', 'myPassword');

    // Do whatever needs to be done...  for example,

    // Create the new email folder (sub-mailbox) on the IMAP server.
    // If no folder path is provided, the new folder is a sub-mailbox of Inbox.
    $imap->CreateMailbox('newFolder');
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

echo "Success.\n";

// Close the connection with the IMAP server.  (This closes the tunnel through ssh2)
// The connection with ssh2 is still alive, and may be used for more connections.
$imap->Disconnect();

// Close the connection with ssh2.  (This closes the the tunnel through ssh1.)
// The connection with ssh1 is still alive, and may be used for more connections.
$ssh2->Disconnect();

$ssh1->Disconnect();