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<?php
/**
 * @package     Joomla.Administrator
 * @subpackage  com_redirect
 *
 * @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\Component\Redirect\Administrator\Table;

\defined('_JEXEC') or die;

use Joomla\CMS\Component\ComponentHelper;
use Joomla\CMS\Factory;
use Joomla\CMS\Language\Text;
use Joomla\CMS\Table\Table;
use Joomla\Database\DatabaseDriver;

/**
 * Link Table for Redirect.
 *
 * @since  1.6
 */
class LinkTable extends Table
{
	/**
	 * Constructor
	 *
	 * @param   DatabaseDriver  $db  Database object.
	 *
	 * @since   1.6
	 */
	public function __construct(DatabaseDriver $db)
	{
		parent::__construct('#__redirect_links', 'id', $db);
	}

/**
	 * Overloaded check function
	 *
	 * @return  boolean
	 *
	 * @since   1.6
	 */
	public function check()
	{
		try
		{
			parent::check();
		}
		catch (\Exception $e)
		{
			$this->setError($e->getMessage());

return false;
		}

$this->old_url = trim(rawurldecode($this->old_url));
		$this->new_url = trim(rawurldecode($this->new_url));

// Check for valid name.
		if (empty($this->old_url))
		{
			$this->setError(Text::_('COM_REDIRECT_ERROR_SOURCE_URL_REQUIRED'));

return false;
		}

// Check for NOT NULL.
		if (empty($this->referer))
		{
			$this->referer = '';
		}

// Check for valid name if not in advanced mode.
		if (empty($this->new_url) && ComponentHelper::getParams('com_redirect')->get('mode', 0) == false)
		{
			$this->setError(Text::_('COM_REDIRECT_ERROR_DESTINATION_URL_REQUIRED'));

return false;
		}
		elseif (empty($this->new_url) && ComponentHelper::getParams('com_redirect')->get('mode', 0) == true)
		{
			// Else if an empty URL and in redirect mode only throw the same error if the code is a 3xx status code
			if ($this->header < 400 && $this->header >= 300)
			{
				$this->setError(Text::_('COM_REDIRECT_ERROR_DESTINATION_URL_REQUIRED'));

return false;
			}
		}

// Check for duplicates
		if ($this->old_url == $this->new_url)
		{
			$this->setError(Text::_('COM_REDIRECT_ERROR_DUPLICATE_URLS'));

return false;
		}

$db = $this->getDbo();

// Check for existing name
		$query = $db->getQuery(true)
			->select($db->quoteName('id'))
			->select($db->quoteName('old_url'))
			->from($db->quoteName('#__redirect_links'))
			->where($db->quoteName('old_url') . ' = :url')
			->bind(':url', $this->old_url);
		$db->setQuery($query);
		$urls = $db->loadAssocList();

foreach ($urls as $url)
		{
			if ($url['old_url'] === $this->old_url && (int) $url['id'] != (int) $this->id)
			{
				$this->setError(Text::_('COM_REDIRECT_ERROR_DUPLICATE_OLD_URL'));

return false;
			}
		}

return true;
	}

/**
	 * Overridden store method to set dates.
	 *
	 * @param   boolean  $updateNulls  True to update fields even if they are null.
	 *
	 * @return  boolean  True on success.
	 *
	 * @since   1.6
	 */
	public function store($updateNulls = false)
	{
		$date = Factory::getDate()->toSql();

if (!$this->id)
		{
			// New record.
			$this->created_date = $date;
			$this->modified_date = $date;
		}

if (empty($this->modified_date))
		{
			$this->modified_date = $this->created_date;
		}

return parent::store($updateNulls);
	}
}