theme_file_eh.php
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Created: Sat, Sep 27, 8:22 PM

theme_file_eh.php
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	<?php
	/**
	* @version $Id: theme_file_eh.php 16692 2021-08-31 09:24:09Z alex $
	* @package In-Portal
	* @copyright Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
	* @license GNU/GPL
	* In-Portal is Open Source software.
	* This means that this software may have been modified pursuant
	* the GNU General Public License, and as distributed it includes
	* or is derivative of works licensed under the GNU General Public License
	* or other free or open source software licenses.
	* See http://www.in-portal.org/license for copyright notices and details.
	*/

	defined('FULL_PATH') or die('restricted access!');

	class ThemeFileEventHandler extends kDBEventHandler {

	/**
	* Allows to override standard permission mapping
	*
	* @return void
	* @access protected
	* @see kEventHandler::$permMapping
	*/
	protected function mapPermissions()
	{
	parent::mapPermissions();

	$permissions = Array (
	'OnLoadBlock' => Array ('subitem' => true),
	'OnSaveBlock' => Array ('subitem' => true),
	'OnSaveLayout' => Array ('subitem' => true),
	);

	$this->permMapping = array_merge($this->permMapping, $permissions);
	}

	/**
	* Checks user permission to execute given $event
	*
	* @param kEvent $event
	* @return bool
	* @access public
	*/
	public function CheckPermission(kEvent $event)
	{
	if ( $event->Name == 'OnLoadBlock' \|\| $event->Name == 'OnSaveBlock' ) {
	return $this->Application->isAdminUser;
	}

	return parent::CheckPermission($event);
	}

	/**
	* Loads template contents into virtual field
	*
	* @param kEvent $event
	* @return void
	* @access protected
	*/
	protected function OnAfterItemLoad(kEvent $event)
	{
	parent::OnAfterItemLoad($event);

	/** @var kDBItem $object */
	$object = $event->getObject();

	$filename = $this->_getTemplatePath($object);

	if ( file_exists($filename) ) {
	$object->SetDBField('FileContents', file_get_contents($filename));
	}
	else {
	$object->SetError('FileContents', 'template_file_missing', 'la_error_TemplateFileMissing');
	}
	}

	/**
	* Trim contents of edited template
	*
	* @param kEvent $event
	* @return void
	* @access protected
	*/
	protected function OnBeforeItemUpdate(kEvent $event)
	{
	parent::OnBeforeItemUpdate($event);

	/** @var kDBItem $object */
	$object = $event->getObject();

	$file_data = $object->GetDBField('FileContents');

	$file_data = str_replace("\r\n", "\n", $file_data);
	$file_data = str_replace("\r", "\n", $file_data);

	$object->SetDBField('FileContents', trim($file_data));
	}

	/**
	* Saves updated content to template
	*
	* @param kEvent $event
	* @return void
	* @access protected
	*/
	protected function OnAfterItemUpdate(kEvent $event)
	{
	parent::OnAfterItemUpdate($event);

	/** @var kDBItem $object */
	$object = $event->getObject();

	$filename = $this->_getTemplatePath($object);

	if ( file_exists($filename) && is_writable($filename) ) {
	$fp = fopen($filename, 'w');
	fwrite($fp, $object->GetDBField('FileContents'));
	fclose($fp);

	/** @var kThemesHelper $themes_helper */
	$themes_helper = $this->Application->recallObject('ThemesHelper');

	$meta_info = $themes_helper->parseTemplateMetaInfo($filename);
	$file_description = array_key_exists('desc', $meta_info) ? $meta_info['desc'] : '';

	$object->SetDBField('Description', $file_description);
	$object->SetDBField('FileMetaInfo', serialize($meta_info));
	$object->Update();
	}
	}

	/**
	* Returns full path to template file
	*
	* @param kDBItem $object
	* @return string
	*/
	function _getTemplatePath(&$object)
	{
	/** @var kDBItem $theme */
	$theme = $this->Application->recallObject('theme');

	$path = FULL_PATH . '/themes/' . $theme->GetDBField('Name');

	$path .= $object->GetDBField('FilePath') . '/' . $object->GetDBField('FileName');

	return $path;
	}

	/**
	* Loads block data based on it's name in request
	*
	* @param kEvent $event
	*/
	function OnLoadBlock($event)
	{
	parent::OnNew($event);

	/** @var kDBItem $object */
	$object = $event->getObject();

	/** @var TemplateHelper $template_helper */
	$template_helper = $this->Application->recallObject('TemplateHelper');

	$template_helper->InitHelper($object);

	$object->SetDBField('FileName', $template_helper->blockInfo('template_file'));
	$object->SetDBField('BlockPosition', $template_helper->blockInfo('start_pos') . ' - ' . $template_helper->blockInfo('end_pos'));
	$object->SetDBField('FileContents', $template_helper->blockInfo('content'));

	}

	/**
	* Saves changed template block
	*
	* @param kEvent $event
	*/
	function OnSaveBlock($event)
	{
	/** @var kDBItem $object */
	$object = $event->getObject( Array('skip_autoload' => true) );

	$items_info = $this->Application->GetVar( $event->getPrefixSpecial(true) );
	if ($items_info) {
	$id = key($items_info);
	$field_values = $items_info[$id];
	$object->setID($id);
	$object->SetFieldsFromHash($field_values);
	$event->setEventParam('form_data', $field_values);
	}

	$status = $object->Validate();

	/** @var TemplateHelper $template_helper */
	$template_helper = $this->Application->recallObject('TemplateHelper');

	$template_helper->InitHelper($object);

	$status = $status && $template_helper->saveBlock($object);

	if ($status) {
	$event->SetRedirectParam('opener', 'u');
	}
	else {
	$event->status = kEvent::erFAIL;
	}
	}

	/**
	* Saves layout on given template
	*
	* @param kEvent $event
	*/
	function OnSaveLayout($event)
	{
	$event->status = kEvent::erSTOP;
	if (($this->Application->GetVar('ajax') != 'yes') \|\| (EDITING_MODE != EDITING_MODE_DESIGN)) {
	return ;
	}

	$target_order = $this->Application->GetVar('target_order');

	/** @var TemplateHelper $template_helper */
	$template_helper = $this->Application->recallObject('TemplateHelper');

	if ($template_helper->moveTemplateElements($target_order)) {
	echo 'OK';
	return ;
	}

	echo 'FAILED';
	}
	}

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