Feature: #100294 - Add PSR-14 event to enrich password validation ContextData 

Description 

A new PSR-14 event \TYPO3\CMS\Core\PasswordPolicy\Event\EnrichPasswordValidationContextDataEvent has been added, which allows extension authors to enrich the \TYPO3\CMS\Core\PasswordPolicy\Validator\Dto\ContextData DTO used in password policy validation.

The PSR-14 event is dispatched in all classes, where a user password is validated against the globally configured password policy.

The event features the following methods:

• getContextData() returns the current ContextData DTO
• getUserData() returns an array with user data available from the initiating class
• getInitiatingClass() returns the class name, where the ContextData DTO is created

The event can be used to enrich the ContextData DTO with additional data used in custom password policy validators.

Registration of the event in your extension's Services.yaml:

MyVendor\MyExtension\PasswordPolicy\EventListener\MyEventListener:
  tags:
    - name: event.listener
      identifier: 'my-extension/enrich-context-data'

The corresponding event listener class:

use TYPO3\CMS\Core\DataHandling\DataHandler;
use TYPO3\CMS\Core\PasswordPolicy\Event\EnrichPasswordValidationContextDataEvent;

final class MyEventListener
{
    public function __invoke(EnrichPasswordValidationContextDataEvent $event): void
    {
        if ($event->getInitiatingClass() === DataHandler::class) {
            $event->getContextData()->setData('currentMiddleName', $event->getUserData()['middle_name'] ?? '');
            $event->getContextData()->setData('currentEmail', $event->getUserData()['email'] ?? '');
        }
    }
}

Impact 

With the new EnrichPasswordValidationContextDataEvent, it is now possible to enrich the ContextData DTO used in password policy validation with additional data.