<?php
/*
	Copyright (C) 2014-2015 Deciso B.V.
	Copyright (C) 2004 Dinesh Nair <dinesh@alphaque.com>
	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.

	THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS 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
	AUTHOR 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.
*/

function passthrumacscmp($a, $b) {
	return strcmp($a['mac'], $b['mac']);
}

function passthrumacs_sort() {
	global $config, $cpzone;

	usort($config['captiveportal'][$cpzone]['passthrumac'],"passthrumacscmp");
}

require("guiconfig.inc");
require("functions.inc");
require_once("filter.inc");
require("shaper.inc");
require("captiveportal.inc");

global $cpzone;
global $cpzoneid;

$pgtitle = array(gettext("Services"),gettext("Captive portal"),gettext("Edit MAC address rules"));
$shortcut_section = "captiveportal";

$cpzone = $_GET['zone'];
if (isset($_POST['zone']))
	$cpzone = $_POST['zone'];

if (empty($cpzone) || empty($config['captiveportal'][$cpzone])) {
	header("Location: services_captiveportal_zones.php");
	exit;
}

if (!is_array($config['captiveportal']))
	$config['captiveportal'] = array();
$a_cp =& $config['captiveportal'];

if (is_numericint($_GET['id']))
	$id = $_GET['id'];
if (isset($_POST['id']) && is_numericint($_POST['id']))
	$id = $_POST['id'];

if (!is_array($a_cp[$cpzone]['passthrumac']))
	$a_cp[$cpzone]['passthrumac'] = array();
$a_passthrumacs = &$a_cp[$cpzone]['passthrumac'];

if (isset($id) && $a_passthrumacs[$id]) {
	$pconfig['action'] = $a_passthrumacs[$id]['action'];
	$pconfig['mac'] = $a_passthrumacs[$id]['mac'];
	$pconfig['bw_up'] = $a_passthrumacs[$id]['bw_up'];
	$pconfig['bw_down'] = $a_passthrumacs[$id]['bw_down'];
	$pconfig['descr'] = $a_passthrumacs[$id]['descr'];
	$pconfig['username'] = $a_passthrumacs[$id]['username'];
}

if ($_POST) {

	unset($input_errors);
	$pconfig = $_POST;

	/* input validation */
	$reqdfields = explode(" ", "action mac");
	$reqdfieldsn = array(gettext("Action"), gettext("MAC address"));

	do_input_validation($_POST, $reqdfields, $reqdfieldsn, $input_errors);

	$_POST['mac'] = strtolower(str_replace("-", ":", $_POST['mac']));

	if ($_POST['mac']) {
		if (is_macaddr($_POST['mac'])) {
			$iflist = get_interface_list();
			foreach ($iflist as $if) {
				if ($_POST['mac'] == strtolower($if['mac'])) {
					$input_errors[] = sprintf(gettext("The MAC address %s belongs to a local interface, you cannot use it here."), $_POST['mac']);
					break;
				}
			}
		} else {
			$input_errors[] = sprintf("%s. [%s]", gettext("A valid MAC address must be specified"), $_POST['mac']);
		}
	}
	if ($_POST['bw_up'] && !is_numeric($_POST['bw_up']))
		$input_errors[] = gettext("Upload speed needs to be an integer");
	if ($_POST['bw_down'] && !is_numeric($_POST['bw_down']))
		$input_errors[] = gettext("Download speed needs to be an integer");

	foreach ($a_passthrumacs as $macent) {
		if (isset($id) && ($a_passthrumacs[$id]) && ($a_passthrumacs[$id] === $macent))
			continue;

		if ($macent['mac'] == $_POST['mac']){
			$input_errors[] = sprintf("[%s] %s.", $_POST['mac'], gettext("already exists"));
			break;
		}
	}

	if (!$input_errors) {
		$mac = array();
		$mac['action'] = $_POST['action'];
		$mac['mac'] = $_POST['mac'];
		if ($_POST['bw_up'])
			$mac['bw_up'] = $_POST['bw_up'];
		if ($_POST['bw_down'])
			$mac['bw_down'] = $_POST['bw_down'];
		if ($_POST['username'])
			$mac['username'] = $_POST['username'];

		$mac['descr'] = $_POST['descr'];

		if (isset($id) && $a_passthrumacs[$id]) {
			$oldmac = $a_passthrumacs[$id];
			$a_passthrumacs[$id] = $mac;
		} else {
			$oldmac = $mac;
			$a_passthrumacs[] = $mac;
		}
		passthrumacs_sort();

		write_config();

		if (isset($config['captiveportal'][$cpzone]['enable'])) {
			$cpzoneid = $config['captiveportal'][$cpzone]['zoneid'];
			$rules = captiveportal_passthrumac_delete_entry($oldmac);
			$rules .= captiveportal_passthrumac_configure_entry($mac);
			$uniqid = uniqid("{$cpzone}_macedit");
			file_put_contents("{$g['tmp_path']}/{$uniqid}_tmp", $rules);
			mwexec("/sbin/ipfw -x {$cpzoneid} -q {$g['tmp_path']}/{$uniqid}_tmp");
			@unlink("{$g['tmp_path']}/{$uniqid}_tmp");
			unset($cpzoneid);
		}

		header("Location: services_captiveportal_mac.php?zone={$cpzone}");
		exit;
	}
}
include("head.inc");
?>

<body>
<?php include("fbegin.inc"); ?>

	<section class="page-content-main">

		<div class="container-fluid">

			<div class="row">

				<?php if ($input_errors) print_input_errors($input_errors); ?>

			    <section class="col-xs-12">

				<div class="content-box">

                        <form action="services_captiveportal_mac_edit.php" method="post" name="iform" id="iform">

				<div class="table-responsive">
					<table class="table table-striped table-sort">
									<tr>
										<td colspan="2" valign="top" class="listtopic"><?=gettext("Edit MAC address rules");?></td>
									</tr>
									<tr>
										<td width="22%" valign="top" class="vncellreq"><?=gettext("Action"); ?></td>
										<td width="78%" class="vtable">
											<select name="action" class="formselect">
							<?php
												$actions = explode(" ", "Pass Block");
												foreach ($actions as $action):
							?>
													<option value="<?=strtolower($action);?>"<?php if (strtolower($action) == strtolower($pconfig['action'])) echo "selected=\"selected\""; ?>>
														<?=htmlspecialchars($action);?>
													</option>
							<?php
												endforeach;
							?>
											</select>
											<br />
											<span class="vexpl"><?=gettext("Choose what to do with packets coming from this MAC address"); ?>.</span>
										</td>
									</tr>
									<tr>
										<td width="22%" valign="top" class="vncellreq"><?=gettext("MAC address"); ?></td>
										<td width="78%" class="vtable">
											<?=$mandfldhtml;?><input name="mac" type="text" class="formfld unknown" id="mac" size="17" value="<?=htmlspecialchars($pconfig['mac']);?>" />
							<?php
											$ip = getenv('REMOTE_ADDR');
											$mac = `/usr/sbin/arp -an | grep {$ip} | cut -d" " -f4`;
											$mac = str_replace("\n","",$mac);
							?>
											<a onclick="document.forms[0].mac.value='<?=$mac?>';" href="#"><?=gettext("Copy my MAC address");?></a>
											<br />
											<span class="vexpl"><?=gettext("MAC address (6 hex octets separated by colons)"); ?></span></td>
									</tr>
									<tr>
										<td width="22%" valign="top" class="vncell"><?=gettext("Description"); ?></td>
										<td width="78%" class="vtable">
											<input name="descr" type="text" class="formfld unknown" id="descr" size="40" value="<?=htmlspecialchars($pconfig['descr']);?>" />
											<br />
											<span class="vexpl"><?=gettext("You may enter a description here for your reference (not parsed)"); ?>.</span>
										</td>
									</tr>
<!--
									<tr>
										<td width="22%" valign="top" class="vncell"><?=gettext("Bandwidth up"); ?></td>
										<td width="78%" class="vtable">
											<input name="bw_up" type="text" class="formfld unknown" id="bw_up" size="10" value="<?=htmlspecialchars($pconfig['bw_up']);?>" />
											<br />
											<span class="vexpl"><?=gettext("Enter a upload limit to be enforced on this MAC address in Kbit/s"); ?></span>
										</td>
									</tr>
									<tr>
										<td width="22%" valign="top" class="vncell"><?=gettext("Bandwidth down"); ?></td>
										<td width="78%" class="vtable">
											<input name="bw_down" type="text" class="formfld unknown" id="bw_down" size="10" value="<?=htmlspecialchars($pconfig['bw_down']);?>" />
											<br />
											<span class="vexpl"><?=gettext("Enter a download limit to be enforced on this MAC address in Kbit/s"); ?></span>
										</td>
									</tr>
-->
									<tr>
										<td width="22%" valign="top">&nbsp;</td>
										<td width="78%">
											<input name="Submit" type="submit" class="btn btn-primary" value="<?=gettext("Save"); ?>" />
											<input name="zone" type="hidden" value="<?=htmlspecialchars($cpzone);?>" />
											<?php if (isset($id) && $a_passthrumacs[$id]): ?>
												<input name="id" type="hidden" value="<?=htmlspecialchars($id);?>" />
											<?php endif; ?>
											<?php if (isset($pconfig['username']) && $pconfig['username']): ?>
												<input name="username" type="hidden" value="<?=htmlspecialchars($pconfig['username']);?>" />
											<?php endif; ?>
										</td>
									</tr>
								</table>
				</div>
                        </form>
				</div>
			    </section>
			</div>
		</div>
	</section>

<?php include("foot.inc"); ?>
