EmailChangeController.php

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<?php
 
namespace Elgg\Users;
 
use Elgg\Email;
use Elgg\Email\Address;
use Elgg\Exceptions\Configuration\RegistrationException;
use Elgg\Http\ResponseBuilder;
use Elgg\Request;
 
class EmailChangeController {
    
    public function __invoke(Request $request) {
        $translator = $request->elgg()->translator;
        
        $user = $request->getEntityParam();
        if (!$user instanceof \ElggUser) {
            return elgg_error_response($translator->translate('error:missing_data'));
        }
        
        $new_email = $user->new_email;
        if (empty($new_email)) {
            return elgg_error_response($translator->translate('account:email:request:error:no_new_email'));
        }
        
        unset($user->new_email);
        
        try {
            $request->elgg()->accounts->assertValidEmail($new_email, true);
        } catch (RegistrationException $e) {
            return elgg_error_response($e->getMessage());
        }
        
        $old_email = $user->email;
        $user->email = $new_email;
        $user->save();
        
        // notify old and new email of the change
        $site = elgg_get_site_entity();
        $notification_params = [
            'object' => $user,
            'action' => 'email_change',
        ];
        
        $notification = Email::factory([
            'from' => $site,
            'to' => new Address($old_email, $user->getDisplayName()),
            'subject' => $translator->translate('email:confirm:email:old:subject', [], $user->getLanguage()),
            'body' => $translator->translate('email:confirm:email:old:body', [
                $site->getDisplayName(),
                $new_email,
                $site->getURL(),
            ], $user->getLanguage()),
            'params' => $notification_params,
        ]);
        elgg_send_email($notification);
        
        $user->notify('email_change', $user);
        
        return elgg_ok_response('', $translator->translate('email:save:success'), '');
    }
}