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<?php
/**
 * Part of the Joomla Framework Input Package
 *
 * @copyright  Copyright (C) 2005 - 2019 Open Source Matters, Inc. All rights reserved.
 * @license    GNU General Public License version 2 or later; see LICENSE
 */

namespace Joomla\Input;

use Joomla\Filter;

/**
 * Joomla! Input JSON Class
 *
 * This class decodes a JSON string from the raw request data and makes it available via
 * the standard Input interface.
 *
 * @since  1.0
 */
class Json extends Input
{
	/**
	 * @var    string  The raw JSON string from the request.
	 * @since  1.0
	 */
	private $raw;

/**
	 * Constructor.
	 *
	 * @param   array  $source   Source data (Optional, default is the raw HTTP input decoded from JSON)
	 * @param   array  $options  Array of configuration parameters (Optional)
	 *
	 * @since   1.0
	 */
	public function __construct($source = null, array $options = array())
	{
		if (isset($options['filter']))
		{
			$this->filter = $options['filter'];
		}
		else
		{
			$this->filter = new Filter\InputFilter;
		}

if ($source === null)
		{
			$this->raw = file_get_contents('php://input');

// This is a workaround for where php://input has already been read.
			// See note under php://input on https://www.php.net/manual/en/wrappers.php.php
			if (empty($this->raw) && isset($GLOBALS['HTTP_RAW_POST_DATA']))
			{
				$this->raw = $GLOBALS['HTTP_RAW_POST_DATA'];
			}

$this->data = json_decode($this->raw, true);

if (!\is_array($this->data))
			{
				$this->data = array();
			}
		}
		else
		{
			$this->data = $source;
		}

// Set the options for the class.
		$this->options = $options;
	}

/**
	 * Gets the raw JSON string from the request.
	 *
	 * @return  string  The raw JSON string from the request.
	 *
	 * @since   1.0
	 */
	public function getRaw()
	{
		return $this->raw;
	}
}