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(PHP ActiveX) POP3 over Multiple Hop SSHDemonstrates how to read POP3 email (using TCP or TLS) tunneled through mulitple-hop SSH. The scheme looks like this: Application => ServerSSH1 => ServerSSH2 => POP3Server
<?php // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Ssh') $ssh1 = new COM("Chilkat.Ssh"); // Connect directly to the 1st SSH server. $success = $ssh1->Connect('serverssh1.com',22); if ($success != 1) { print $ssh1->LastErrorText . "\n"; exit; } // Authenticate using login/password: $success = $ssh1->AuthenticatePw('ssh1Login','ssh1Password'); if ($success != 1) { print $ssh1->LastErrorText . "\n"; exit; } // 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. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Ssh') $ssh2 = new COM("Chilkat.Ssh"); $success = $ssh2->ConnectThroughSsh($ssh1,'serverssh2.com',22); if ($success != 1) { print $ssh2->LastErrorText . "\n"; exit; } // Authenticate with ssh2... $success = $ssh2->AuthenticatePw('ssh2Login','ssh2Password'); if ($success != 1) { print $ssh2->LastErrorText . "\n"; exit; } // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.MailMan') $mailman = new COM("Chilkat.MailMan"); // Tell the mailman object to connect to the POP3 server though the ssh2 tunnel (which itself is routed through ssh1). // The connection looks like this: Application => ServerSSH1 => ServerSSH2 => POP3Server $success = $mailman->UseSsh($ssh2); if ($success != 1) { print $mailman->LastErrorText . "\n"; exit; } // Set the POP3 server's hostname $mailman->MailHost = 'pop.someMailServer.com'; // Set the POP3 login/password. $mailman->PopUsername = 'myLogin'; $mailman->PopPassword = 'myPassword'; // Establish the POP3 connection through the ssh2 tunnel. $success = $mailman->Pop3BeginSession(); if ($success != 1) { print $mailman->LastErrorText . "\n"; exit; } // Get the number of messages in the mailbox. $numMessages = $mailman->GetMailboxCount(); $i = 1; while ($i <= $numMessages) { // email is a Chilkat.Email $email = $mailman->FetchByMsgnum($i); if ($mailman->LastMethodSuccess != 1) { print $mailman->LastErrorText . "\n"; exit; } print $email->From . ': ' . $email->Subject . '\n' . "\n"; $i = $i + 1; } // Close the connection with the POP3 server. (This closes the tunnel through ssh2) // The connection with ssh2 is still alive, and may be used for more connections. $success = $mailman->Pop3EndSession(); // 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(); ?> |
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