Dynamic 'toEmail' address' using <input> elements

[jamiematrix]

Is there a way to have dynamic 'toEmail' address (or address') for a form?

Use case is a kind of 'refer a friend' email where someone fills a form in with their name and email along with a friends name and email. I'm using the contact-form.php file to change the toEmail address, but I get the error of Request contained an invalid body param. My guess is because the toEmail element isn't being hashed.

Would it be possible to do this as part of the contact-form.php config or something using JavaScript?

[jamiematrix]

May have found a fix, hoping it's a usable one. Here's my edited contact-form.php:

<?php

$config = [];
$request = Craft::$app->request;

// Get the 'toEmail' field from POST
$toEmailField = $request->getBodyParam('toEmail');
// Check it's not a console request and the field is not null
if ($toEmailField !== null && !$request->getIsConsoleRequest()) {   
   // Hash the email provided
   $toEmailField = Craft::$app->getSecurity()->hashData($toEmailField, null);
   // Verify (may not be needed);
   $isValid = Craft::$app->getSecurity()->validateData($toEmailField);
}

// If not a console request, the 'toEmail' field is not null and the field has ben validated
if (
      !$request->getIsConsoleRequest() &&
      $toEmailField !== null && 
      $isValid !== null
   ) {
      // set the 'toEmail' config to the new hashed email
      $config['toEmail'] = $toEmailField;
} elseif (
      !$request->getIsConsoleRequest() &&
      ($toEmail = $request->getValidatedBodyParam('toEmail')) !== null
      ) {
   $config['toEmail'] = $toEmail;
}

return $config;

[jamiematrix]

Seems like I was massively over complicating the form.

Ended up with:

<?php

$config = [];
$request = Craft::$app->request;

// Get the 'toEmail' field from POST
$toEmail = $request->getBodyParam('toEmail');
// Check it's not a console request and the field is not null
if ($toEmail !== null && !$request->getIsConsoleRequest()) {
   $config['toEmail'] = $toEmail;
}

return $config;

Which appears to be working so far