Probably, but there isn't enough information on that page to give you any better answer. We'd need to know what needs to be added to or done to the email to encrypt and certify it.
<?
$key = file_get_contents('client_email_cert.x509');
?><?
$msg = "Hello Client,
There's been a new submission to our form, the details are as follows:
Name: " . JRequest::getString('name') . "
Email: " . JRequest::getString('email') . "
Have a nice day.";
?><?
//we've got our key in $key, and message in $msg..
$parm = array(
'To' => 'yourclient@somesite.it',
'From' => 'Yoursite <webmaster@yoursite.it',
'Subject' => 'Submitted form data'
);
//Create a file to hold our original message and our encrypted message:
$config = JFactory::getConfig();
$orig = $config->getValue('config.tmp_path').DS.uniqid('txt');
$crypt = $config->getValue('config.tmp_path').DS.uniqid('enc');
$fd = fopen($orig, "w");
fwrite($fd, $msg);
fclose($fd);
if (openssl_pkcs7_encrypt($orig, $crypt, $key, $parm, PKCS7_TEXT, OPENSSL_CIPHER_RC2_128))
{
//Encryption successful, proceed to send the email:
//Unfortunately, the PHPMailer used by Joomla is too limited to allow us to do this in Joom-space..
//and using the mail() function rendered issues with reading the From: header... so we'll go for sendmail here...
exec(ini_get("sendmail_path") . " < " . $crypt);
//And remove the original and encrypted files from the filesystem, just to make sure noone finds them.
unlink($crypt);
}
unlink($orig);
?>So, what to do next[…]
require(JPATH_SITE.DS."Net".DS."SMTP.php");<?php
$key = file_get_contents('client_email_cert.x509');
$msg = "Hello Client, Content will follow...";
$to = 'yourclient@example.com';
$subject = 'Submitted form data';
$headers = array(
'To' => $to,
'From' => 'Yoursite <webmaster@yoursite.it',
'Subject' => $subject
);
//Create a file to hold our original message and our encrypted message:
//Use the tmp_path setting from configuration.php..
$config = JFactory::getConfig();
$orig = $config->getValue('config.tmp_path').DS.uniqid('txt');
$crypt = $config->getValue('config.tmp_path').DS.uniqid('enc');
//Write the email to the temporary file..
file_put_contents($orig, $msg);
//...and encrypt it using the public key:
if (openssl_pkcs7_encrypt($orig, $crypt, $key, $parm, PKCS7_TEXT, OPENSSL_CIPHER_RC2_128))
{
//Load the encrypted data from the temporary file, and extract headers and message
$data = file_get_contents($crypt);
$parts = explode("\n\n", $data, 2);
//Then send them off to the email system..
mail($to, $subject, $parts[1], $parts[0]);
//And remove the original and encrypted files from the filesystem, just to make sure noone finds them.
unlink($crypt);
}
unlink($orig);
?>