<?php
/*
	Copyright (C) 2014 Deciso B.V.
	Copyright (C) 2003-2004 Manuel Kasper <mk@neon1.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.

	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.
*/

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

if (!is_array($config['nat']['onetoone']))
	$config['nat']['onetoone'] = array();

$a_1to1 = &$config['nat']['onetoone'];

if ($_POST) {
	$pconfig = $_POST;

	if ($_POST['apply']) {
		$retval = 0;
		$retval |= filter_configure();
		$savemsg = get_std_save_message($retval);

		if ($retval == 0) {
			clear_subsystem_dirty('natconf');
			clear_subsystem_dirty('filter');
		}
	}
}

if ($_GET['act'] == "del") {
	if ($a_1to1[$_GET['id']]) {
		unset($a_1to1[$_GET['id']]);
		if (write_config())
			mark_subsystem_dirty('natconf');
		header("Location: firewall_nat_1to1.php");
		exit;
	}
}

if (isset($_POST['del_x'])) {
	/* delete selected rules */
	if (is_array($_POST['rule']) && count($_POST['rule'])) {
		foreach ($_POST['rule'] as $rulei) {
			unset($a_1to1[$rulei]);
		}
		if (write_config())
			mark_subsystem_dirty('natconf');
		header("Location: firewall_nat_1to1.php");
		exit;
	}

} else if ($_GET['act'] == "toggle") {
	if ($a_1to1[$_GET['id']]) {
		if(isset($a_1to1[$_GET['id']]['disabled']))
			unset($a_1to1[$_GET['id']]['disabled']);
		else
			$a_1to1[$_GET['id']]['disabled'] = true;
		if (write_config("Firewall: NAT: Outbound, enable/disable NAT rule"))
			mark_subsystem_dirty('natconf');
		header("Location: firewall_nat_1to1.php");
		exit;
	}
} else {
	/* yuck - IE won't send value attributes for image buttons, while Mozilla does - so we use .x/.y to find move button clicks instead... */
	unset($movebtn);
	foreach ($_POST as $pn => $pd) {
		if (preg_match("/move_(\d+)_x/", $pn, $matches)) {
			$movebtn = $matches[1];
			break;
		}
	}
	/* move selected rules before this rule */
	if (isset($movebtn) && is_array($_POST['rule']) && count($_POST['rule'])) {
		$a_1to1_new = array();

		/* copy all rules < $movebtn and not selected */
		for ($i = 0; $i < $movebtn; $i++) {
			if (!in_array($i, $_POST['rule']))
				$a_1to1_new[] = $a_1to1[$i];
		}

		/* copy all selected rules */
		for ($i = 0; $i < count($a_1to1); $i++) {
			if ($i == $movebtn)
				continue;
			if (in_array($i, $_POST['rule']))
				$a_1to1_new[] = $a_1to1[$i];
		}

		/* copy $movebtn rule */
		if ($movebtn < count($a_1to1))
			$a_1to1_new[] = $a_1to1[$movebtn];

		/* copy all rules > $movebtn and not selected */
		for ($i = $movebtn+1; $i < count($a_1to1); $i++) {
			if (!in_array($i, $_POST['rule']))
				$a_1to1_new[] = $a_1to1[$i];
		}
		if (count($a_1to1_new) > 0)
			$a_1to1 = $a_1to1_new;

		if (write_config())
			mark_subsystem_dirty('natconf');
		header("Location: firewall_nat_1to1.php");
		exit;
	}
}

$pgtitle = array(gettext("Firewall"),gettext("NAT"),gettext("1:1"));
include("head.inc");

$main_buttons = array(
	array('label'=>gettext("add rule"), 'href'=>'firewall_nat_1to1_edit.php'),
);


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

	<script type="text/javascript" src="/javascript/row_toggle.js"></script>

	<section class="page-content-main">
		<div class="container-fluid">
			<div class="row">

				<?php
				if ($savemsg)
					print_info_box($savemsg);
				if (is_subsystem_dirty('natconf'))
					print_info_box_np(gettext("The NAT configuration has been changed.") .
						"<br />" .
						gettext("You must apply the changes in order for them to take effect."));
				?>

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

					<?php
							$tab_array = array();
							$tab_array[] = array(gettext("Port Forward"), false, "firewall_nat.php");
							$tab_array[] = array(gettext("1:1"), true, "firewall_nat_1to1.php");
							$tab_array[] = array(gettext("Outbound"), false, "firewall_nat_out.php");
							$tab_array[] = array(gettext("NPt"), false, "firewall_nat_npt.php");
							display_top_tabs($tab_array);
					?>

					<div class="tab-content content-box col-xs-12">


	                        <form action="firewall_nat_1to1.php" method="post" name="iform" id="iform">
					<input type="hidden" id="id" name="id" value="<?php echo htmlspecialchars($id); ?>" />

		                        <table class="table table-striped table-sort">
		                        <thead>
									<tr id="frheader">
										<th width="3%" class="list">&nbsp;</th>
										<th width="3%" class="list">&nbsp;</th>
										<th class="listhdrr"><?=gettext("Interface"); ?></th>
										<th class="listhdrr"><?=gettext("External IP"); ?></th>
										<th class="listhdrr"><?=gettext("Internal IP"); ?></th>
										<th class="listhdrr"><?=gettext("Destination IP"); ?></th>
										<th class="listhdr"><?=gettext("Description"); ?></th>
										<th class="list"></th>
									</tr>
		                        </thead>
		                        <tbody>
						<?php
								$textse = "";
								$i = 0;
								foreach ($a_1to1 as $natent):
									if (isset($natent['disabled'])) {
										$textss = "text-muted";
										$iconfn = "glyphicon glyphicon-play";
									} else {
										$textss = "text-success";
										$iconfn = "glyphicon glyphicon-play";
									}
						?>
									<tr valign="top" id="fr<?=$i;?>">
										<td class="listt">
											<input type="checkbox" id="frc<?=$i;?>" name="rule[]" value="<?=$i;?>" />
										</td>
										<td class="listt" align="center">
											<a href="?act=toggle&amp;id=<?=$i;?>" data-toggle="tooltip" data-placement="left" class="glyphicon <?=$iconfn;?> <?=$textss;?>" title="<?=gettext("click to toggle enabled/disabled status");?>" ></a>
										</td>
										<td class="listlr" onclick="fr_toggle(<?=$i;?>)" id="frd<?=$i;?>" ondblclick="document.location='firewall_nat_1to1_edit.php?id=<?=$i;?>';">
						<?php

											if (!$natent['interface'])
												echo htmlspecialchars(convert_friendly_interface_to_friendly_descr("wan"));
											else
												echo htmlspecialchars(convert_friendly_interface_to_friendly_descr($natent['interface']));

						?>
										</td>
										<td class="listr"  id="frd<?=$i;?>" ondblclick="document.location='firewall_nat_1to1_edit.php?id=<?=$i;?>';">
						<?php
											$source_net = pprint_address($natent['source']);
											$source_cidr = strstr($source_net, '/');
											echo $natent['external'] . $source_cidr;
						?>
										</td>
										<td class="listr"  id="frd<?=$i;?>" ondblclick="document.location='firewall_nat_1to1_edit.php?id=<?=$i;?>';">
						<?php
											echo $source_net . $textse;
						?>
										</td>
										<td class="listr"  id="frd<?=$i;?>" ondblclick="document.location='firewall_nat_1to1_edit.php?id=<?=$i;?>';">
						<?php
											echo pprint_address($natent['destination']);
						?>
										</td>
										<td class="listbg"  ondblclick="document.location='firewall_nat_1to1_edit.php?id=<?=$i;?>';">
						<?php
											echo htmlspecialchars($natent['descr']) . '&nbsp;';
						?>
										</td>
										<td class="list nowrap" valign="middle">
											<button  name="move_<?=$i;?>_x"
												title="<?=gettext("move selected mapping before this rule");?>"
												type="submit" class="btn btn-default btn-xs" data-toggle="tooltip" data-placement="left"><span class="glyphicon glyphicon-arrow-left"></span></button>

											<a href="firewall_nat_1to1_edit.php?id=<?=$i;?>" class="btn btn-default btn-xs" data-toggle="tooltip" data-placement="left" title="<?=gettext("edit this mapping");?>"><span class="glyphicon glyphicon-pencil"></span></a>
											<a href="firewall_nat_1to1.php?act=del&amp;id=<?=$i;?>" data-toggle="tooltip" data-placement="left" title="<?=gettext("delete this mapping");?>" onclick="return confirm('<?=gettext("Do you really want to delete this rule?");?>')" class="btn btn-default btn-xs"><span class="glyphicon glyphicon-remove"></span></a>
											<a href="firewall_nat_1to1_edit.php?dup=<?=$i;?>" data-toggle="tooltip" data-placement="left" title="<?=gettext("add new mapping based on this one");?>" class="btn btn-default btn-xs"><span class="glyphicon glyphicon-plus"></span></a>
										</td>
									</tr>
						<?php
									$i++;
								endforeach;
						?>
									<tr>
										<td class="list" colspan="7"></td>
										<td class="list nowrap" valign="middle">

						<?php
													if ($i == 0):
						?>
														<span title="<?=gettext("move selected mappings to end");?>" class="btn btn-default btn-xs"><span class="glyphicon glyphicon-arrow-left"></span></span>
						<?php
													else:
						?>
														<button name="move_<?=$i;?>_x" type="submit"  data-toggle="tooltip" data-placement="left" title="<?=gettext("move selected mappings to end");?>" class="btn btn-default btn-xs"><span class="glyphicon glyphicon-arrow-left"></span></button>
						<?php
													endif;
						?>

														<a href="firewall_nat_1to1_edit.php" data-toggle="tooltip" data-placement="left" title="<?=gettext("add new mapping");?>" class="btn btn-default btn-xs"><span class="glyphicon glyphicon-plus"></span></a>

						<?php
													if ($i == 0):
						?>
														<span title="<?=gettext("delete selected rules");?>" data-toggle="tooltip" data-placement="left" title="<?=gettext("delete mapping");?>"  class="btn btn-default btn-xs"><span class="glyphicon glyphicon-remove"></span></span>
						<?php
													else:
						?>
														<button name="del_x" type="submit" data-toggle="tooltip" data-placement="left" title="<?=gettext("delete selected mappings");?>"
															onclick="return confirm('<?=gettext("Do you really want to delete the selected mappings?");?>')" class="btn btn-default btn-xs"><span class="glyphicon glyphicon-remove"></span></button>
						<?php
													endif;
						?>
										</td>
									</tr>
									<tr>
										<td colspan="9">
											<p><span class="vexpl">
												<span class="text-danger"><strong><?=gettext("Note:"); ?><br /></strong></span>
												<?=gettext("Depending on the way your WAN connection is setup, you may also need a"); ?>
												<a href="firewall_virtual_ip.php"><?=gettext("Virtual IP."); ?></a><br />
												<?=gettext("If you add a 1:1 NAT entry for any of the interface IPs on this system, " .
													"it will make this system inaccessible on that IP address. i.e. if " .
													"you use your WAN IP address, any services on this system (IPsec, OpenVPN server, etc.) " .
													"using the WAN IP address will no longer function."); ?>
											</span></p>
										</td>
									</tr>
		                        </tbody>
								</table>
	                        </form>
					</div>
			    </section>
			</div>
		</div>
	</section>

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