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tommaso
2025-06-17 11:53:18 +02:00
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21
plugins/multifactorauth/fixed/fixed.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<extension type="plugin" group="multifactorauth" method="upgrade">
<name>plg_multifactorauth_fixed</name>
<author>Joomla! Project</author>
<creationDate>2022-05</creationDate>
<copyright>(C) 2022 Open Source Matters, Inc.</copyright>
<license>GNU General Public License version 2 or later; see LICENSE.txt</license>
<authorEmail>admin@joomla.org</authorEmail>
<authorUrl>www.joomla.org</authorUrl>
<version>4.2.0</version>
<description>PLG_MULTIFACTORAUTH_FIXED_XML_DESCRIPTION</description>
<namespace path="src">Joomla\Plugin\Multifactorauth\Fixed</namespace>
<files>
<folder plugin="fixed">services</folder>
<folder>src</folder>
</files>
<languages>
<language tag="en-GB">language/en-GB/plg_multifactorauth_fixed.ini</language>
<language tag="en-GB">language/en-GB/plg_multifactorauth_fixed.sys.ini</language>
</languages>
</extension>

39
plugins/multifactorauth/fixed/services/provider.php Normal file
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<?php
/**
* @package Joomla.Plugin
* @subpackage Multifactorauth.fixed
*
* @copyright (C) 2022 Open Source Matters, Inc. <https://www.joomla.org>
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
\defined('_JEXEC') || die;
use Joomla\CMS\Extension\PluginInterface;
use Joomla\CMS\Plugin\PluginHelper;
use Joomla\DI\Container;
use Joomla\DI\ServiceProviderInterface;
use Joomla\Event\DispatcherInterface;
use Joomla\Plugin\Multifactorauth\Fixed\Extension\Fixed;
return new class () implements ServiceProviderInterface {
/**
* Registers the service provider with a DI container.
*
* @param Container $container The DI container.
*
* @return void
*
* @since 4.2.0
*/
public function register(Container $container)
{
$container->set(
PluginInterface::class,
function (Container $container) {
return new Fixed($container->get(DispatcherInterface::class), (array) PluginHelper::getPlugin('multifactorauth', 'fixed'));
}
);
}
};

320
plugins/multifactorauth/fixed/src/Extension/Fixed.php Normal file
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<?php
/**
* @package Joomla.Plugin
* @subpackage Multifactorauth.fixed
*
* @copyright (C) 2022 Open Source Matters, Inc. <https://www.joomla.org>
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
namespace Joomla\Plugin\Multifactorauth\Fixed\Extension;
use Joomla\CMS\Event\MultiFactor\Captive;
use Joomla\CMS\Event\MultiFactor\GetMethod;
use Joomla\CMS\Event\MultiFactor\GetSetup;
use Joomla\CMS\Event\MultiFactor\SaveSetup;
use Joomla\CMS\Event\MultiFactor\Validate;
use Joomla\CMS\Language\Text;
use Joomla\CMS\Plugin\CMSPlugin;
use Joomla\CMS\User\User;
use Joomla\Component\Users\Administrator\DataShape\CaptiveRenderOptions;
use Joomla\Component\Users\Administrator\DataShape\MethodDescriptor;
use Joomla\Component\Users\Administrator\DataShape\SetupRenderOptions;
use Joomla\Component\Users\Administrator\Table\MfaTable;
use Joomla\Event\SubscriberInterface;
use Joomla\Input\Input;
use RuntimeException;
// phpcs:disable PSR1.Files.SideEffects
\defined('_JEXEC') or die;
// phpcs:enable PSR1.Files.SideEffects
/**
* Joomla! Multi-factor Authentication using a fixed code.
*
* Requires a static string (password), different for each user. It effectively works as a second
* password. The fixed code is stored hashed, like a regular password.
*
* This is NOT to be used on production sites. It serves as a demonstration plugin and as a template
* for developers to create their own custom Multi-factor Authentication plugins.
*
* @since 4.2.0
*/
class Fixed extends CMSPlugin implements SubscriberInterface
{
/**
* Affects constructor behavior. If true, language files will be loaded automatically.
*
* @var boolean
* @since 4.2.0
*/
protected $autoloadLanguage = true;
/**
* The MFA Method name handled by this plugin
*
* @var string
* @since 4.2.0
*/
private $mfaMethodName = 'fixed';
/**
* Should I try to detect and register legacy event listeners, i.e. methods which accept unwrapped arguments? While
* this maintains a great degree of backwards compatibility to Joomla! 3.x-style plugins it is much slower. You are
* advised to implement your plugins using proper Listeners, methods accepting an AbstractEvent as their sole
* parameter, for best performance. Also bear in mind that Joomla! 5.x onwards will only allow proper listeners,
* removing support for legacy Listeners.
*
* @var boolean
* @since 4.2.0
*
* @deprecated 4.3 will be removed in 6.0
* Implement your plugin methods accepting an AbstractEvent object
* Example:
* onEventTriggerName(AbstractEvent $event) {
* $context = $event->getArgument(...);
* }
*/
protected $allowLegacyListeners = false;
/**
* Returns an array of events this subscriber will listen to.
*
* @return array
*
* @since 4.2.0
*/
public static function getSubscribedEvents(): array
{
return [
'onUserMultifactorGetMethod' => 'onUserMultifactorGetMethod',
'onUserMultifactorCaptive' => 'onUserMultifactorCaptive',
'onUserMultifactorGetSetup' => 'onUserMultifactorGetSetup',
'onUserMultifactorSaveSetup' => 'onUserMultifactorSaveSetup',
'onUserMultifactorValidate' => 'onUserMultifactorValidate',
];
}
/**
* Gets the identity of this MFA Method
*
* @param GetMethod $event The event we are handling
*
* @return void
* @since 4.2.0
*/
public function onUserMultifactorGetMethod(GetMethod $event): void
{
$event->addResult(
new MethodDescriptor(
[
'name' => $this->mfaMethodName,
'display' => Text::_('PLG_MULTIFACTORAUTH_FIXED_LBL_DISPLAYEDAS'),
'shortinfo' => Text::_('PLG_MULTIFACTORAUTH_FIXED_LBL_SHORTINFO'),
'image' => 'media/plg_multifactorauth_fixed/images/fixed.svg',
]
)
);
}
/**
* Returns the information which allows Joomla to render the Captive MFA page. This is the page
* which appears right after you log in and asks you to validate your login with MFA.
*
* @param Captive $event The event we are handling
*
* @return void
* @since 4.2.0
*/
public function onUserMultifactorCaptive(Captive $event): void
{
/**
* @var MfaTable $record The record currently selected by the user.
*/
$record = $event['record'];
// Make sure we are actually meant to handle this Method
if ($record->method != $this->mfaMethodName) {
return;
}
$event->addResult(
new CaptiveRenderOptions(
[
// Custom HTML to display above the MFA form
'pre_message' => Text::_('PLG_MULTIFACTORAUTH_FIXED_LBL_PREMESSAGE'),
// How to render the MFA code field. "input" (HTML input element) or "custom" (custom HTML)
'field_type' => 'input',
// The type attribute for the HTML input box. Typically "text" or "password". Use any HTML5 input type.
'input_type' => 'password',
// Placeholder text for the HTML input box. Leave empty if you don't need it.
'placeholder' => Text::_('PLG_MULTIFACTORAUTH_FIXED_LBL_PLACEHOLDER'),
// Label to show above the HTML input box. Leave empty if you don't need it.
'label' => Text::_('PLG_MULTIFACTORAUTH_FIXED_LBL_LABEL'),
// Custom HTML. Only used when field_type = custom.
'html' => '',
// Custom HTML to display below the MFA form
'post_message' => Text::_('PLG_MULTIFACTORAUTH_FIXED_LBL_POSTMESSAGE'),
// Override the autocomplete attribute for the HTML input box.
'autocomplete' => 'off',
]
)
);
}
/**
* Returns the information which allows Joomla to render the MFA setup page. This is the page
* which allows the user to add or modify a MFA Method for their user account. If the record
* does not correspond to your plugin return an empty array.
*
* @param GetSetup $event The event we are handling
*
* @return void
* @since 4.2.0
*/
public function onUserMultifactorGetSetup(GetSetup $event): void
{
/** @var MfaTable $record The record currently selected by the user. */
$record = $event['record'];
// Make sure we are actually meant to handle this Method
if ($record->method != $this->mfaMethodName) {
return;
}
// Load the options from the record (if any)
$options = $this->decodeRecordOptions($record);
/**
* Return the parameters used to render the GUI.
*
* Some MFA Methods need to display a different interface before and after the setup. For example, when setting
* up Google Authenticator or a hardware OTP dongle you need the user to enter a MFA code to verify they are in
* possession of a correctly configured device. After the setup is complete you don't want them to see that
* field again. In the first state you could use the tabular_data to display the setup values, pre_message to
* display the QR code and field_type=input to let the user enter the MFA code. In the second state do the same
* BUT set field_type=custom, set html='' and show_submit=false to effectively hide the setup form from the
* user.
*/
$event->addResult(
new SetupRenderOptions(
[
'default_title' => Text::_('PLG_MULTIFACTORAUTH_FIXED_LBL_DEFAULTTITLE'),
'pre_message' => Text::_('PLG_MULTIFACTORAUTH_FIXED_LBL_SETUP_PREMESSAGE'),
'field_type' => 'input',
'input_type' => 'password',
'input_value' => $options->fixed_code,
'placeholder' => Text::_('PLG_MULTIFACTORAUTH_FIXED_LBL_PLACEHOLDER'),
'label' => Text::_('PLG_MULTIFACTORAUTH_FIXED_LBL_LABEL'),
'post_message' => Text::_('PLG_MULTIFACTORAUTH_FIXED_LBL_SETUP_POSTMESSAGE'),
]
)
);
}
/**
* Parse the input from the MFA setup page and return the configuration information to be saved to the database. If
* the information is invalid throw a RuntimeException to signal the need to display the editor page again. The
* message of the exception will be displayed to the user. If the record does not correspond to your plugin return
* an empty array.
*
* @param SaveSetup $event The event we are handling
*
* @return void The configuration data to save to the database
* @since 4.2.0
*/
public function onUserMultifactorSaveSetup(SaveSetup $event): void
{
/**
* @var MfaTable $record The record currently selected by the user.
* @var Input $input The user input you are going to take into account.
*/
$record = $event['record'];
$input = $event['input'];
// Make sure we are actually meant to handle this Method
if ($record->method != $this->mfaMethodName) {
return;
}
// Load the options from the record (if any)
$options = $this->decodeRecordOptions($record);
// Merge with the submitted form data
$code = $input->get('code', $options->fixed_code, 'raw');
// Make sure the code is not empty
if (empty($code)) {
throw new \RuntimeException(Text::_('PLG_MULTIFACTORAUTH_FIXED_ERR_EMPTYCODE'));
}
// Return the configuration to be serialized
$event->addResult(['fixed_code' => $code]);
}
/**
* Validates the Multi-factor Authentication code submitted by the user in the Multi-Factor
* Authentication. If the record does not correspond to your plugin return FALSE.
*
* @param Validate $event The event we are handling
*
* @return void
* @since 4.2.0
*/
public function onUserMultifactorValidate(Validate $event): void
{
/**
* @var MfaTable $record The MFA Method's record you're validating against
* @var User $user The user record
* @var string|null $code The submitted code
*/
$record = $event['record'];
$user = $event['user'];
$code = $event['code'];
// Make sure we are actually meant to handle this Method
if ($record->method != $this->mfaMethodName) {
$event->addResult(false);
return;
}
// Load the options from the record (if any)
$options = $this->decodeRecordOptions($record);
// Double check the MFA Method is for the correct user
if ($user->id != $record->user_id) {
$event->addResult(false);
return;
}
// Check the MFA code for validity
$event->addResult(hash_equals($options->fixed_code, $code ?? ''));
}
/**
* Decodes the options from a record into an options object.
*
* @param MfaTable $record The record to decode options for
*
* @return object
* @since 4.2.0
*/
private function decodeRecordOptions(MfaTable $record): object
{
$options = [
'fixed_code' => '',
];
if (!empty($record->options)) {
$recordOptions = $record->options;
$options = array_merge($options, $recordOptions);
}
return (object) $options;
}
}