<?php
/*
 * itemid.inc
 *
 * part of pfSense (https://www.pfsense.org)
 * Copyright (c) 2009-2016 Rubicon Communications, LLC (Netgate)
 * Copyright (c) 2009 Janne Enberg <janne.enberg@lietu.net>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgment:
 *    "This product includes software developed by the pfSense Project
 *    for use in the pfSense® software distribution. (http://www.pfsense.org/).
 *
 * 4. The names "pfSense" and "pfSense Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    coreteam@pfsense.org.
 *
 * 5. Products derived from this software may not be called "pfSense"
 *    nor may "pfSense" appear in their names without prior written
 *    permission of the Electric Sheep Fencing, LLC.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *
 * "This product includes software developed by the pfSense Project
 * for use in the pfSense software distribution (http://www.pfsense.org/).
 *
 * THIS SOFTWARE IS PROVIDED BY THE pfSense PROJECT ``AS IS'' AND ANY
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE pfSense PROJECT OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/****f* itemid/delete_id
 * NAME
 *   delete_id - delete an item with ['associated-rule-id'] = $id from $array
 * INPUTS
 *   $id       - int: The ID to delete
 *   $array    - array to delete the item from
 * RESULT
 *   boolean   - true if item was found and deleted
 ******/
function delete_id($id, &$array) {
	global $config;

	if (!is_array($array)) {
		return false;
	}

	// Search for the item in the array
	$delete_index = get_id($id, $array);

	// If we found the item, unset it
	if ($delete_index === false) {
		return false;
	}

	$if = $array[$delete_index]['interface'];
	unset($array[$delete_index]);

	// Update the separators
	$a_separators = &$config['filter']['separator'][strtolower($if)];
	// get rule index within interface
	$ridx = ifridx($if, $delete_index);
	$mvnrows = -1;
	move_separators($a_separators, $ridx, $mvnrows);

	return true;
}

/****f* itemid/toggle_id
 * NAME
 *   toggle_id - enable/disable item with ['associated-rule-id'] = $id from $array
 * INPUTS
 *   $id       - int: The ID to delete
 *   $array    - array to delete the item from
 *   $status   - true to enable item and false to disable
 * RESULT
 *   boolean   - true if item was found and set
 ******/
function toggle_id($id, &$array, $status) {
	global $config;

	if (!is_array($array)) {
		return false;
	}

	// Search for the item in the array
	$toggle_index = get_id($id, $array);

	// If we found the item, unset it
	if ($toggle_index === false) {
		return false;
	}

	if ($status) {
		unset($array[$toggle_index]['disabled']);
	} else {
		$array[$toggle_index]['disabled'] = true;
	}

	return true;
}

/****f* itemid/get_id
 * NAME
 *   get_id - Get an item id with ['associated-rule-id'] = $id from $array
 * INPUTS
 *   $id     - string: The ID to get
 *   $array  - array to get the item from
 * RESULT
 *   mixed   - The id, false if not found
 ******/
function get_id($id, $array) {
	// Use $foo = get_id('id', array('id'=>'value'));

	if (!is_array($array)) {
		return false;
	}

	// Search for the item in the array
	foreach ($array as $key => $item) {
		// If this item is the one we want to delete
		if (isset($item['associated-rule-id']) &&
		    $item['associated-rule-id'] == $id) {
			return $key;
		}
	}

	return false;
}

/****f* itemid/get_unique_id
 * NAME
 *   get_unique_id - get a unique identifier
 * RESULT
 *   string     - unique id
 ******/
function get_unique_id() {

	return uniqid("nat_", true);
}

?>