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<?php
/**
* Joomla! Content Management System
*
* @copyright (C) 2009 Open Source Matters, Inc. <https://www.joomla.org>
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
namespace Joomla\CMS\MVC\Controller;
\defined('JPATH_PLATFORM') or die;
use Joomla\CMS\Application\CMSApplication;
use Joomla\CMS\Component\ComponentHelper;
use Joomla\CMS\Factory;
use Joomla\CMS\Form\FormFactoryAwareInterface;
use Joomla\CMS\Form\FormFactoryAwareTrait;
use Joomla\CMS\Form\FormFactoryInterface;
use Joomla\CMS\Language\Text;
use Joomla\CMS\MVC\Factory\MVCFactoryInterface;
use Joomla\CMS\MVC\Model\BaseDatabaseModel;
use Joomla\CMS\Router\Route;
use Joomla\CMS\Uri\Uri;
use Joomla\Input\Input;
/**
* Controller tailored to suit most form-based admin operations.
*
* @since 1.6
* @todo Add ability to set redirect manually to better cope with frontend usage.
*/
class FormController extends BaseController implements FormFactoryAwareInterface
{
use FormFactoryAwareTrait;
/**
* The context for storing internal data, e.g. record.
*
* @var string
* @since 1.6
*/
protected $context;
/**
* The URL option for the component.
*
* @var string
* @since 1.6
*/
protected $option;
/**
* The URL view item variable.
*
* @var string
* @since 1.6
*/
protected $view_item;
/**
* The URL view list variable.
*
* @var string
* @since 1.6
*/
protected $view_list;
/**
* The prefix to use with controller messages.
*
* @var string
* @since 1.6
*/
protected $text_prefix;
/**
* Constructor.
*
* @param array $config An optional associative array of configuration settings.
* Recognized key values include 'name', 'default_task', 'model_path', and
* 'view_path' (this list is not meant to be comprehensive).
* @param MVCFactoryInterface $factory The factory.
* @param CMSApplication $app The JApplication for the dispatcher
* @param Input $input Input
* @param FormFactoryInterface $formFactory The form factory.
*
* @since 3.0
*/
public function __construct($config = array(), MVCFactoryInterface $factory = null, ?CMSApplication $app = null, ?Input $input = null,
FormFactoryInterface $formFactory = null
)
{
parent::__construct($config, $factory, $app, $input);
// Guess the option as com_NameOfController
if (empty($this->option))
{
$this->option = ComponentHelper::getComponentName($this, $this->getName());
}
// Guess the \Text message prefix. Defaults to the option.
if (empty($this->text_prefix))
{
$this->text_prefix = strtoupper($this->option);
}
// Guess the context as the suffix, eg: OptionControllerContent.
if (empty($this->context))
{
$r = null;
$match = 'Controller';
// If there is a namespace append a backslash
if (strpos(\get_class($this), '\\'))
{
$match .= '\\\\';
}
if (!preg_match('/(.*)' . $match . '(.*)/i', \get_class($this), $r))
{
throw new \Exception(Text::sprintf('JLIB_APPLICATION_ERROR_GET_NAME', __METHOD__), 500);
}
// Remove the backslashes and the suffix controller
$this->context = str_replace(array('\\', 'controller'), '', strtolower($r[2]));
}
// Guess the item view as the context.
if (empty($this->view_item))
{
$this->view_item = $this->context;
}
// Guess the list view as the plural of the item view.
if (empty($this->view_list))
{
$this->view_list = \Joomla\String\Inflector::getInstance()->toPlural($this->view_item);
}
$this->setFormFactory($formFactory);
// Apply, Save & New, and Save As copy should be standard on forms.
$this->registerTask('apply', 'save');
$this->registerTask('save2menu', 'save');
$this->registerTask('save2new', 'save');
$this->registerTask('save2copy', 'save');
$this->registerTask('editAssociations', 'save');
}
/**
* Method to add a new record.
*
* @return boolean True if the record can be added, false if not.
*
* @since 1.6
*/
public function add()
{
$context = "$this->option.edit.$this->context";
// Access check.
if (!$this->allowAdd())
{
// Set the internal error and also the redirect error.
$this->setMessage(Text::_('JLIB_APPLICATION_ERROR_CREATE_RECORD_NOT_PERMITTED'), 'error');
$this->setRedirect(
Route::_(
'index.php?option=' . $this->option . '&view=' . $this->view_list
. $this->getRedirectToListAppend(), false
)
);
return false;
}
// Clear the record edit information from the session.
Factory::getApplication()->setUserState($context . '.data', null);
// Redirect to the edit screen.
$this->setRedirect(
Route::_(
'index.php?option=' . $this->option . '&view=' . $this->view_item
. $this->getRedirectToItemAppend(), false
)
);
return true;
}
/**
* Method to check if you can add a new record.
*
* Extended classes can override this if necessary.
*
* @param array $data An array of input data.
*
* @return boolean
*
* @since 1.6
*/
protected function allowAdd($data = array())
{
$user = Factory::getUser();
return $user->authorise('core.create', $this->option) || \count($user->getAuthorisedCategories($this->option, 'core.create'));
}
/**
* Method to check if you can edit an existing record.
*
* Extended classes can override this if necessary.
*
* @param array $data An array of input data.
* @param string $key The name of the key for the primary key; default is id.
*
* @return boolean
*
* @since 1.6
*/
protected function allowEdit($data = array(), $key = 'id')
{
return Factory::getUser()->authorise('core.edit', $this->option);
}
/**
* Method to check if you can save a new or existing record.
*
* Extended classes can override this if necessary.
*
* @param array $data An array of input data.
* @param string $key The name of the key for the primary key.
*
* @return boolean
*
* @since 1.6
*/
protected function allowSave($data, $key = 'id')
{
$recordId = $data[$key] ?? '0';
if ($recordId)
{
return $this->allowEdit($data, $key);
}
else
{
return $this->allowAdd($data);
}
}
/**
* Method to run batch operations.
*
* @param BaseDatabaseModel $model The model of the component being processed.
*
* @return boolean True if successful, false otherwise and internal error is set.
*
* @since 1.7
*/
public function batch($model)
{
$vars = $this->input->post->get('batch', array(), 'array');
$cid = $this->input->post->get('cid', array(), 'array');
// Build an array of item contexts to check
$contexts = array();
$option = $this->extension ?? $this->option;
foreach ($cid as $id)
{
// If we're coming from com_categories, we need to use extension vs. option
$contexts[$id] = $option . '.' . $this->context . '.' . $id;
}
// Attempt to run the batch operation.
if ($model->batch($vars, $cid, $contexts))
{
$this->setMessage(Text::_('JLIB_APPLICATION_SUCCESS_BATCH'));
return true;
}
else
{
$this->setMessage(Text::sprintf('JLIB_APPLICATION_ERROR_BATCH_FAILED', $model->getError()), 'warning');
return false;
}
}
/**
* Method to cancel an edit.
*
* @param string $key The name of the primary key of the URL variable.
*
* @return boolean True if access level checks pass, false otherwise.
*
* @since 1.6
*/
public function cancel($key = null)
{
$this->checkToken();
$model = $this->getModel();
$table = $model->getTable();
$context = "$this->option.edit.$this->context";
if (empty($key))
{
$key = $table->getKeyName();
}
$recordId = $this->input->getInt($key);
// Attempt to check-in the current record.
if ($recordId && $table->hasField('checked_out') && $model->checkin($recordId) === false)
{
// Check-in failed, go back to the record and display a notice.
$this->setMessage(Text::sprintf('JLIB_APPLICATION_ERROR_CHECKIN_FAILED', $model->getError()), 'error');
$this->setRedirect(
Route::_(
'index.php?option=' . $this->option . '&view=' . $this->view_item
. $this->getRedirectToItemAppend($recordId, $key), false
)
);
return false;
}
// Clean the session data and redirect.
$this->releaseEditId($context, $recordId);
Factory::getApplication()->setUserState($context . '.data', null);
$url = 'index.php?option=' . $this->option . '&view=' . $this->view_list
. $this->getRedirectToListAppend();
// Check if there is a return value
$return = $this->input->get('return', null, 'base64');
if (!\is_null($return) && Uri::isInternal(base64_decode($return)))
{
$url = base64_decode($return);
}
// Redirect to the list screen.
$this->setRedirect(Route::_($url, false));
return true;
}
/**
* Method to edit an existing record.
*
* @param string $key The name of the primary key of the URL variable.
* @param string $urlVar The name of the URL variable if different from the primary key
* (sometimes required to avoid router collisions).
*
* @return boolean True if access level check and checkout passes, false otherwise.
*
* @since 1.6
*/
public function edit($key = null, $urlVar = null)
{
// Do not cache the response to this, its a redirect, and mod_expires and google chrome browser bugs cache it forever!
Factory::getApplication()->allowCache(false);
$model = $this->getModel();
$table = $model->getTable();
$cid = $this->input->post->get('cid', array(), 'array');
$context = "$this->option.edit.$this->context";
// Determine the name of the primary key for the data.
if (empty($key))
{
$key = $table->getKeyName();
}
// To avoid data collisions the urlVar may be different from the primary key.
if (empty($urlVar))
{
$urlVar = $key;
}
// Get the previous record id (if any) and the current record id.
$recordId = (int) (\count($cid) ? $cid[0] : $this->input->getInt($urlVar));
$checkin = $table->hasField('checked_out');
// Access check.
if (!$this->allowEdit(array($key => $recordId), $key))
{
$this->setMessage(Text::_('JLIB_APPLICATION_ERROR_EDIT_NOT_PERMITTED'), 'error');
$this->setRedirect(
Route::_(
'index.php?option=' . $this->option . '&view=' . $this->view_list
. $this->getRedirectToListAppend(), false
)
);
return false;
}
// Attempt to check-out the new record for editing and redirect.
if ($checkin && !$model->checkout($recordId))
{
// Check-out failed, display a notice but allow the user to see the record.
$this->setMessage(Text::sprintf('JLIB_APPLICATION_ERROR_CHECKOUT_FAILED', $model->getError()), 'error');
$this->setRedirect(
Route::_(
'index.php?option=' . $this->option . '&view=' . $this->view_item
. $this->getRedirectToItemAppend($recordId, $urlVar), false
)
);
return false;
}
else
{
// Check-out succeeded, push the new record id into the session.
$this->holdEditId($context, $recordId);
Factory::getApplication()->setUserState($context . '.data', null);
$this->setRedirect(
Route::_(
'index.php?option=' . $this->option . '&view=' . $this->view_item
. $this->getRedirectToItemAppend($recordId, $urlVar), false
)
);
return true;
}
}
/**
* Method to get a model object, loading it if required.
*
* @param string $name The model name. Optional.
* @param string $prefix The class prefix. Optional.
* @param array $config Configuration array for model. Optional.
*
* @return BaseDatabaseModel The model.
*
* @since 1.6
*/
public function getModel($name = '', $prefix = '', $config = array('ignore_request' => true))
{
if (empty($name))
{
$name = $this->context;
}
return parent::getModel($name, $prefix, $config);
}
/**
* Gets the URL arguments to append to an item redirect.
*
* @param integer $recordId The primary key id for the item.
* @param string $urlVar The name of the URL variable for the id.
*
* @return string The arguments to append to the redirect URL.
*
* @since 1.6
*/
protected function getRedirectToItemAppend($recordId = null, $urlVar = 'id')
{
$append = '';
// Setup redirect info.
if ($tmpl = $this->input->get('tmpl', '', 'string'))
{
$append .= '&tmpl=' . $tmpl;
}
if ($layout = $this->input->get('layout', 'edit', 'string'))
{
$append .= '&layout=' . $layout;
}
if ($forcedLanguage = $this->input->get('forcedLanguage', '', 'cmd'))
{
$append .= '&forcedLanguage=' . $forcedLanguage;
}
if ($recordId)
{
$append .= '&' . $urlVar . '=' . $recordId;
}
$return = $this->input->get('return', null, 'base64');
if ($return)
{
$append .= '&return=' . $return;
}
return $append;
}
/**
* Gets the URL arguments to append to a list redirect.
*
* @return string The arguments to append to the redirect URL.
*
* @since 1.6
*/
protected function getRedirectToListAppend()
{
$append = '';
// Setup redirect info.
if ($tmpl = $this->input->get('tmpl', '', 'string'))
{
$append .= '&tmpl=' . $tmpl;
}
if ($forcedLanguage = $this->input->get('forcedLanguage', '', 'cmd'))
{
$append .= '&forcedLanguage=' . $forcedLanguage;
}
return $append;
}
/**
* Function that allows child controller access to model data
* after the data has been saved.
*
* @param BaseDatabaseModel $model The data model object.
* @param array $validData The validated data.
*
* @return void
*
* @since 1.6
*/
protected function postSaveHook(BaseDatabaseModel $model, $validData = array())
{
}
/**
* Method to save a record.
*
* @param string $key The name of the primary key of the URL variable.
* @param string $urlVar The name of the URL variable if different from the primary key (sometimes required to avoid router collisions).
*
* @return boolean True if successful, false otherwise.
*
* @since 1.6
*/
public function save($key = null, $urlVar = null)
{
// Check for request forgeries.
$this->checkToken();
$app = Factory::getApplication();
$model = $this->getModel();
$table = $model->getTable();
$data = $this->input->post->get('jform', array(), 'array');
$checkin = $table->hasField('checked_out');
$context = "$this->option.edit.$this->context";
$task = $this->getTask();
// Determine the name of the primary key for the data.
if (empty($key))
{
$key = $table->getKeyName();
}
// To avoid data collisions the urlVar may be different from the primary key.
if (empty($urlVar))
{
$urlVar = $key;
}
$recordId = $this->input->getInt($urlVar);
// Populate the row id from the session.
$data[$key] = $recordId;
// The save2copy task needs to be handled slightly differently.
if ($task === 'save2copy')
{
// Check-in the original row.
if ($checkin && $model->checkin($data[$key]) === false)
{
// Check-in failed. Go back to the item and display a notice.
$this->setMessage(Text::sprintf('JLIB_APPLICATION_ERROR_CHECKIN_FAILED', $model->getError()), 'error');
$this->setRedirect(
Route::_(
'index.php?option=' . $this->option . '&view=' . $this->view_item
. $this->getRedirectToItemAppend($recordId, $urlVar), false
)
);
return false;
}
// Reset the ID, the multilingual associations and then treat the request as for Apply.
$data[$key] = 0;
$data['associations'] = array();
$task = 'apply';
}
// Access check.
if (!$this->allowSave($data, $key))
{
$this->setMessage(Text::_('JLIB_APPLICATION_ERROR_SAVE_NOT_PERMITTED'), 'error');
$this->setRedirect(
Route::_(
'index.php?option=' . $this->option . '&view=' . $this->view_list
. $this->getRedirectToListAppend(), false
)
);
return false;
}
// Validate the posted data.
// Sometimes the form needs some posted data, such as for plugins and modules.
$form = $model->getForm($data, false);
if (!$form)
{
$app->enqueueMessage($model->getError(), 'error');
return false;
}
// Send an object which can be modified through the plugin event
$objData = (object) $data;
$app->triggerEvent(
'onContentNormaliseRequestData',
array($this->option . '.' . $this->context, $objData, $form)
);
$data = (array) $objData;
// Test whether the data is valid.
$validData = $model->validate($form, $data);
// Check for validation errors.
if ($validData === false)
{
// Get the validation messages.
$errors = $model->getErrors();
// Push up to three validation messages out to the user.
for ($i = 0, $n = \count($errors); $i < $n && $i < 3; $i++)
{
if ($errors[$i] instanceof \Exception)
{
$app->enqueueMessage($errors[$i]->getMessage(), 'warning');
}
else
{
$app->enqueueMessage($errors[$i], 'warning');
}
}
/**
* We need the filtered value of calendar fields because the UTC normalisation is
* done in the filter and on output. This would apply the Timezone offset on
* reload. We set the calendar values we save to the processed date.
*/
$filteredData = $form->filter($data);
foreach ($form->getFieldset() as $field)
{
if ($field->type === 'Calendar')
{
$fieldName = $field->fieldname;
if (isset($filteredData[$fieldName]))
{
$data[$fieldName] = $filteredData[$fieldName];
}
}
}
// Save the data in the session.
$app->setUserState($context . '.data', $data);
// Redirect back to the edit screen.
$this->setRedirect(
Route::_(
'index.php?option=' . $this->option . '&view=' . $this->view_item
. $this->getRedirectToItemAppend($recordId, $urlVar), false
)
);
return false;
}
if (!isset($validData['tags']))
{
$validData['tags'] = array();
}
// Attempt to save the data.
if (!$model->save($validData))
{
// Save the data in the session.
$app->setUserState($context . '.data', $validData);
// Redirect back to the edit screen.
$this->setMessage(Text::sprintf('JLIB_APPLICATION_ERROR_SAVE_FAILED', $model->getError()), 'error');
$this->setRedirect(
Route::_(
'index.php?option=' . $this->option . '&view=' . $this->view_item
. $this->getRedirectToItemAppend($recordId, $urlVar), false
)
);
return false;
}
// Save succeeded, so check-in the record.
if ($checkin && $model->checkin($validData[$key]) === false)
{
// Save the data in the session.
$app->setUserState($context . '.data', $validData);
// Check-in failed, so go back to the record and display a notice.
$this->setMessage(Text::sprintf('JLIB_APPLICATION_ERROR_CHECKIN_FAILED', $model->getError()), 'error');
$this->setRedirect(
Route::_(
'index.php?option=' . $this->option . '&view=' . $this->view_item
. $this->getRedirectToItemAppend($recordId, $urlVar), false
)
);
return false;
}
$langKey = $this->text_prefix . ($recordId === 0 && $app->isClient('site') ? '_SUBMIT' : '') . '_SAVE_SUCCESS';
$prefix = Factory::getLanguage()->hasKey($langKey) ? $this->text_prefix : 'JLIB_APPLICATION';
$this->setMessage(Text::_($prefix . ($recordId === 0 && $app->isClient('site') ? '_SUBMIT' : '') . '_SAVE_SUCCESS'));
// Redirect the user and adjust session state based on the chosen task.
switch ($task)
{
case 'apply':
// Set the record data in the session.
$recordId = $model->getState($this->context . '.id');
$this->holdEditId($context, $recordId);
$app->setUserState($context . '.data', null);
$model->checkout($recordId);
// Redirect back to the edit screen.
$this->setRedirect(
Route::_(
'index.php?option=' . $this->option . '&view=' . $this->view_item
. $this->getRedirectToItemAppend($recordId, $urlVar), false
)
);
break;
case 'save2new':
// Clear the record id and data from the session.
$this->releaseEditId($context, $recordId);
$app->setUserState($context . '.data', null);
// Redirect back to the edit screen.
$this->setRedirect(
Route::_(
'index.php?option=' . $this->option . '&view=' . $this->view_item
. $this->getRedirectToItemAppend(null, $urlVar), false
)
);
break;
default:
// Clear the record id and data from the session.
$this->releaseEditId($context, $recordId);
$app->setUserState($context . '.data', null);
$url = 'index.php?option=' . $this->option . '&view=' . $this->view_list
. $this->getRedirectToListAppend();
// Check if there is a return value
$return = $this->input->get('return', null, 'base64');
if (!\is_null($return) && Uri::isInternal(base64_decode($return)))
{
$url = base64_decode($return);
}
// Redirect to the list screen.
$this->setRedirect(Route::_($url, false));
break;
}
// Invoke the postSave method to allow for the child class to access the model.
$this->postSaveHook($model, $validData);
return true;
}
/**
* Method to reload a record.
*
* @param string $key The name of the primary key of the URL variable.
* @param string $urlVar The name of the URL variable if different from the primary key (sometimes required to avoid router collisions).
*
* @return void
*
* @since 3.7.4
*/
public function reload($key = null, $urlVar = null)
{
// Check for request forgeries.
$this->checkToken();
$app = Factory::getApplication();
$model = $this->getModel();
$data = $this->input->post->get('jform', array(), 'array');
// Determine the name of the primary key for the data.
if (empty($key))
{
$key = $model->getTable()->getKeyName();
}
// To avoid data collisions the urlVar may be different from the primary key.
if (empty($urlVar))
{
$urlVar = $key;
}
$recordId = $this->input->getInt($urlVar);
// Populate the row id from the session.
$data[$key] = $recordId;
// Check if it is allowed to edit or create the data
if (($recordId && !$this->allowEdit($data, $key)) || (!$recordId && !$this->allowAdd($data)))
{
$this->setRedirect(
Route::_(
'index.php?option=' . $this->option . '&view=' . $this->view_list
. $this->getRedirectToListAppend(), false
)
);
$this->redirect();
}
// The redirect url
$redirectUrl = Route::_(
'index.php?option=' . $this->option . '&view=' . $this->view_item .
$this->getRedirectToItemAppend($recordId, $urlVar),
false
);
/** @var \Joomla\CMS\Form\Form $form */
$form = $model->getForm($data, false);
/**
* We need the filtered value of calendar fields because the UTC normalisation is
* done in the filter and on output. This would apply the Timezone offset on
* reload. We set the calendar values we save to the processed date.
*/
$filteredData = $form->filter($data);
foreach ($form->getFieldset() as $field)
{
if ($field->type === 'Calendar')
{
$fieldName = $field->fieldname;
if (isset($filteredData[$fieldName]))
{
$data[$fieldName] = $filteredData[$fieldName];
}
}
}
// Save the data in the session.
$app->setUserState($this->option . '.edit.' . $this->context . '.data', $data);
$this->setRedirect($redirectUrl);
$this->redirect();
}
/**
* Load item to edit associations in com_associations
*
* @return void
*
* @since 3.9.0
*
* @deprecated 5.0 It is handled by regular save method now.
*/
public function editAssociations()
{
// Initialise variables.
$app = Factory::getApplication();
$input = $app->input;
$model = $this->getModel();
$data = $input->get('jform', array(), 'array');
$model->editAssociations($data);
}
}