PHP

Set an FTPS Client Certificate from PEM

Demonstrates the Chilkat Ftp2.SetSslClientCertPem method, which configures a client certificate and private key from PEM. The first argument may be the PEM text or a PEM file path, and the second is the private-key password (empty when the key is not encrypted).

Note: The local paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

Background: This is the PEM-based form of setting the mutual-TLS client certificate — convenient when the certificate and key already live in a .pem file, the common format from OpenSSH and Unix tooling. Use SetSslClientCertPfx instead for a PKCS#12 .pfx/.p12 bundle. As with any client certificate, set it before connecting.

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<?php

use Chilkat2\Ftp2;

// Demonstrates the Ftp2.SetSslClientCertPem method, which configures a client certificate and
// private key from PEM.  The 1st argument is the PEM text or a PEM file path, and the 2nd is the
// private-key password (empty when the key is not encrypted).

$ftp = new Ftp2();

$ftp->Hostname = 'ftp.example.com';
$ftp->Username = 'myFtpLogin';

// Normally you would not hard-code the password in source.  You should instead obtain it
// from an interactive prompt, environment variable, or a secrets vault.
$ftp->Password = 'myPassword';

// Use explicit FTPS (AUTH TLS) on the standard FTP port.
$ftp->AuthTls = true;

// Provide the PEM client certificate before connecting.  The password should come from a secure
// source rather than being hard-coded.
$pemPassword = 'myPemPassword';
try {
    $ftp->SetSslClientCertPem('qa_data/client.pem', $pemPassword);

    $ftp->Connect();
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

echo "Connected with a PEM client certificate.\n";

try {
    $ftp->Disconnect();
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}