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(PHP Extension) FTP through SSH TunnelDemonstrates how to FTP through an SSH tunnel. The Chilkat SSH tunnel object is used to create a portable SSH tunnel w/ dynamic port forwarding on a background thread that the foreground thread can use for establishing connections through an SSH tunnel.
<?php // The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number. // For example, if using Chilkat v9.5.0.48, then include as shown here: include("chilkat_9_5_0.php"); // Starting in v9.5.0.49, all Chilkat classes can be unlocked at once at the beginning of a program // by calling UnlockBundle. It requires a Bundle unlock code. $chilkatGlob = new CkGlobal(); $success = $chilkatGlob->UnlockBundle('Anything for 30-day trial.'); if ($success != true) { print $chilkatGlob->lastErrorText() . "\n"; exit; } // This example requires Chilkat version 9.5.0.50 or greater. $tunnel = new CkSshTunnel(); $sshHostname = 'www.my-ssh-server.com'; $sshPort = 22; // Connect to an SSH server and establish the SSH tunnel: $success = $tunnel->Connect($sshHostname,$sshPort); if ($success != true) { print $tunnel->lastErrorText() . "\n"; exit; } // Authenticate with the SSH server via a login/password // or with a public key. // This example demonstrates SSH password authentication. $success = $tunnel->AuthenticatePw('mySshLogin','mySshPassword'); if ($success != true) { print $tunnel->lastErrorText() . "\n"; exit; } // Indicate that the background SSH tunnel thread will behave as a SOCKS proxy server // with dynamic port forwarding: $tunnel->put_DynamicPortForwarding(true); // We may optionally require that connecting clients authenticate with our SOCKS proxy server. // To do this, set an inbound username/password. Any connecting clients would be required to // use SOCKS5 with the correct username/password. // If no inbound username/password is set, then our SOCKS proxy server will accept both // SOCKS4 and SOCKS5 unauthenticated connections. $tunnel->put_InboundSocksUsername('chilkat123'); $tunnel->put_InboundSocksPassword('password123'); // Start the listen/accept thread to begin accepting SOCKS proxy client connections. // Listen on port 1080. $success = $tunnel->BeginAccepting(1080); if ($success != true) { print $tunnel->lastErrorText() . "\n"; exit; } // Now that a background thread is running a SOCKS proxy server that forwards connections // through an SSH tunnel, it is possible to use any Chilkat implemented protocol that is SOCKS capable, // such as Socket, HTTP, POP3, SMTP, IMAP, FTP, etc. The protocol may use SSL/TLS because the SSL/TLS // will be passed through the SSH tunnel to the end-destination. Also, any number of simultaneous // connections may be routed through the SSH tunnel. // Let's do an FTP upload through the SSH tunnel. Both the control and data connections // go through the tunnel. $ftp = new CkFtp2(); $ftp->put_Hostname('ftp.someFtpServer.com'); $ftp->put_Username('****'); $ftp->put_Password('****'); // Indicate that the FTP2 object is to use our portable SOCKS proxy/SSH tunnel running in our background thread. $ftp->put_SocksHostname('localhost'); $ftp->put_SocksPort(1080); $ftp->put_SocksVersion(5); $ftp->put_SocksUsername('chilkat123'); $ftp->put_SocksPassword('password123'); // Connect to the FTP server $success = $ftp->ConnectOnly(); if ($success != true) { print $ftp->lastErrorText() . "\n"; exit; } // Authenticate with the FTP server. $success = $ftp->LoginAfterConnectOnly(); if ($success != true) { print $ftp->lastErrorText() . "\n"; exit; } // Change to the remote directory where the file will be uploaded. $success = $ftp->ChangeRemoteDir('junk'); if ($success != true) { print $ftp->lastErrorText() . "\n"; exit; } // Upload a file. $localPath = '/temp/hamlet.xml'; $remoteFilename = 'hamlet.xml'; $success = $ftp->PutFile($localPath,$remoteFilename); if ($success != true) { print $ftp->lastErrorText() . "\n"; exit; } // This closes the SSH channel within the SSH tunnel, // and thus closes the connection with the FTP server. $success = $ftp->Disconnect(); print 'File Uploaded!' . "\n"; // Stop the background listen/accept thread: $waitForThreadExit = true; $success = $tunnel->StopAccepting($waitForThreadExit); if ($success != true) { print $tunnel->lastErrorText() . "\n"; exit; } // Close the SSH tunnel (would also kick any remaining connected clients). $success = $tunnel->CloseTunnel($waitForThreadExit); if ($success != true) { print $tunnel->lastErrorText() . "\n"; exit; } ?> |
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