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Name File: input.php

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<?php
/**
 * @package     Joomla.Platform
 * @subpackage  Application
 *
 * @copyright   Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
 * @license     GNU General Public License version 2 or later; see LICENSE
 */

defined('JPATH_PLATFORM') or die;

JLoader::discover('JInput', dirname(__FILE__) . '/input');

/**
 * Joomla! Input Base Class
 *
 * This is an abstracted input class used to manage retrieving data from the application environment.
 *
 * @package     Joomla.Platform
 * @subpackage  Application
 * @since       11.1
 *
 * @method      integer  getInt()       getInt($name, $default)    Get a signed integer.
 * @method      integer  getUint()      getUint($name, $default)   Get an unsigned integer.
 * @method      float    getFloat()     getFloat($name, $default)  Get a floating-point number.
 * @method      boolean  getBool()      getBool($name, $default)   Get a boolean.
 * @method      string   getWord()      getWord($name, $default)
 * @method      string   getAlnum()     getAlnum($name, $default)
 * @method      string   getCmd()       getCmd($name, $default)
 * @method      string   getBase64()    getBase64($name, $default)
 * @method      string   getString()    getString($name, $default)
 * @method      string   getHtml()      getHtml($name, $default)
 * @method      string   getPath()      getPath($name, $default)
 * @method      string   getUsername()  getUsername($name, $default)
 */
class JInput
{
	/**
	 * Options array for the JInput instance.
	 *
	 * @var    array
	 * @since  11.1
	 */
	protected $options = array();

	/**
	 * Filter object to use.
	 *
	 * @var    JFilterInput
	 * @since  11.1
	 */
	protected $filter = null;

	/**
	 * Input data.
	 *
	 * @var    array
	 * @since  11.1
	 */
	protected $data = array();

	/**
	 * Input objects
	 *
	 * @var    array
	 * @since  11.1
	 */
	protected $inputs = array();

	/**
	 * Constructor.
	 *
	 * @param   array  $source   Source data (Optional, default is $_REQUEST)
	 * @param   array  $options  Array of configuration parameters (Optional)
	 *
	 * @since   11.1
	 */
	public function __construct($source = null, array $options = array())
	{
		if (isset($options['filter']))
		{
			$this->filter = $options['filter'];
		}
		else
		{
			$this->filter = JFilterInput::getInstance();
		}

		if (is_null($source))
		{
			$this->data = & $_REQUEST;
		}
		else
		{
			$this->data = & $source;
		}

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

	/**
	 * Magic method to get an input object
	 *
	 * @param   mixed  $name  Name of the input object to retrieve.
	 *
	 * @return  JInput  The request input object
	 *
	 * @since   11.1
	 */
	public function __get($name)
	{
		if (isset($this->inputs[$name]))
		{
			return $this->inputs[$name];
		}

		$className = 'JInput' . $name;
		if (class_exists($className))
		{
			$this->inputs[$name] = new $className(null, $this->options);
			return $this->inputs[$name];
		}

		$superGlobal = '_' . strtoupper($name);
		if (isset($GLOBALS[$superGlobal]))
		{
			$this->inputs[$name] = new JInput($GLOBALS[$superGlobal], $this->options);
			return $this->inputs[$name];
		}

		// TODO throw an exception
	}

	/**
	 * Gets a value from the input data.
	 *
	 * @param   string  $name     Name of the value to get.
	 * @param   mixed   $default  Default value to return if variable does not exist.
	 * @param   string  $filter   Filter to apply to the value.
	 *
	 * @return  mixed  The filtered input value.
	 *
	 * @since   11.1
	 */
	public function get($name, $default = null, $filter = 'cmd')
	{
		if (isset($this->data[$name]))
		{
			return $this->filter->clean($this->data[$name], $filter);
		}

		return $default;
	}

	/**
	 * Gets an array of values from the request.
	 *
	 * @param   array  $vars        Associative array of keys and filter types to apply.
	 * @param   mixed  $datasource  Array to retrieve data from, or null
	 *
	 * @return  mixed  The filtered input data.
	 *
	 * @since   11.1
	 */
	public function getArray(array $vars, $datasource = null)
	{
		$results = array();

		foreach ($vars as $k => $v)
		{
			if (is_array($v))
			{
				if (is_null($datasource))
				{
					$results[$k] = $this->getArray($v, $this->get($k, null, 'array'));
				}
				else
				{
					$results[$k] = $this->getArray($v, $datasource[$k]);
				}
			}
			else
			{
				if (is_null($datasource))
				{
					$results[$k] = $this->get($k, null, $v);
				}
				else
				{
					$results[$k] = $this->filter->clean($datasource[$k], $v);
				}
			}
		}
		return $results;
	}

	/**
	 * Sets a value
	 *
	 * @param   string  $name   Name of the value to set.
	 * @param   mixed   $value  Value to assign to the input.
	 *
	 * @return  void
	 *
	 * @since   11.1
	 */
	public function set($name, $value)
	{
		$this->data[$name] = $value;
	}

	/**
	 * Define a value. The value will only be set if there's no value for the name or if it is null.
	 *
	 * @param   string  $name   Name of the value to define.
	 * @param   mixed   $value  Value to assign to the input.
	 *
	 * @return  void
	 *
	 * @since   12.1
	 */
	public function def($name, $value)
	{
		if (isset($this->data[$name]))
		{
			return;
		}

		$this->data[$name] = $value;
	}

	/**
	 * Magic method to get filtered input data.
	 *
	 * @param   mixed   $name       Name of the value to get.
	 * @param   string  $arguments  Default value to return if variable does not exist.
	 *
	 * @return  boolean  The filtered boolean input value.
	 *
	 * @since   11.1
	 */
	public function __call($name, $arguments)
	{
		if (substr($name, 0, 3) == 'get')
		{

			$filter = substr($name, 3);

			$default = null;
			if (isset($arguments[1]))
			{
				$default = $arguments[1];
			}

			return $this->get($arguments[0], $default, $filter);
		}
	}

	/**
	 * Gets the request method.
	 *
	 * @return  string   The request method.
	 *
	 * @since   11.1
	 */
	public function getMethod()
	{
		$method = strtoupper($_SERVER['REQUEST_METHOD']);
		return $method;
	}
}