<?php
/*
	vpn_l2tp_users_edit.php
	part of pfSense

	Copyright (C) 2006 Scott Ullrich (sullrich@gmail.com)
	Copyright (C) 2013-2015 Electric Sheep Fencing, LP
	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.
*/

##|+PRIV
##|*IDENT=page-vpn-vpnl2tp-users-edit
##|*NAME=VPN: VPN L2TP : Users : Edit page
##|*DESCR=Allow access to the 'VPN: VPN L2TP : Users : Edit' page.
##|*MATCH=vpn_l2tp_users_edit.php*
##|-PRIV

$pgtitle = array(gettext("VPN"),gettext("L2TP"),gettext("User"),gettext("Edit"));
$shortcut_section = "l2tps";

function  l2tpusercmp($a,  $b)  {
	return  strcasecmp($a['name'],  $b['name']);
}

function  l2tp_users_sort()  {
        global  $config;

        if (!is_array($config['l2tp']['user']))
                return;

        usort($config['l2tp']['user'],  "l2tpusercmp");
}

require("guiconfig.inc");
require_once("vpn.inc");

if (isset($_POST['referer'])) {
	$referer = $_POST['referer'];
} else {
	$referer = (isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : '/vpn_l2tp_users.php');
}

if (!is_array($config['l2tp']['user'])) {
	$config['l2tp']['user'] = array();
}
$a_secret = &$config['l2tp']['user'];

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

if (isset($id) && $a_secret[$id]) {
	$pconfig['usernamefld'] = $a_secret[$id]['name'];
	$pconfig['ip'] = $a_secret[$id]['ip'];
}

if ($_POST) {

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

	/* input validation */
	if (isset($id) && ($a_secret[$id])) {
		$reqdfields = explode(" ", "usernamefld");
		$reqdfieldsn = array(gettext("Username"));
	} else {
		$reqdfields = explode(" ", "usernamefld passwordfld");
		$reqdfieldsn = array(gettext("Username"),gettext("Password"));
	}

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

	if (preg_match("/[^a-zA-Z0-9\.\-_]/", $_POST['usernamefld']))
		$input_errors[] = gettext("The username contains invalid characters.");

	if (preg_match("/[^a-zA-Z0-9\.\-_]/", $_POST['passwordfld']))
		$input_errors[] = gettext("The password contains invalid characters.");

	if (($_POST['passwordfld']) && ($_POST['passwordfld'] != $_POST['passwordfld2'])) {
		$input_errors[] = gettext("The passwords do not match.");
	}
	if (($_POST['ip'] && !is_ipaddr($_POST['ip']))) {
		$input_errors[] = gettext("The IP address entered is not valid.");
	}

	if (!$input_errors && !(isset($id) && $a_secret[$id])) {
		/* make sure there are no dupes */
		foreach ($a_secret as $secretent) {
			if ($secretent['name'] == $_POST['usernamefld']) {
				$input_errors[] = gettext("Another entry with the same username already exists.");
				break;
			}
		}
	}

	/* if this is an AJAX caller then handle via JSON */
	if(isAjax() && is_array($input_errors)) {
		input_errors2Ajax($input_errors);
		exit;
	}

	if (!$input_errors) {

		if (isset($id) && $a_secret[$id])
			$secretent = $a_secret[$id];

		$secretent['name'] = $_POST['usernamefld'];
		$secretent['ip'] = $_POST['ip'];

		if ($_POST['passwordfld'])
			$secretent['password'] = $_POST['passwordfld'];

		if (isset($id) && $a_secret[$id])
			$a_secret[$id] = $secretent;
		else
			$a_secret[] = $secretent;
		l2tp_users_sort();

		write_config();

		$retval = vpn_l2tp_configure();

		pfSenseHeader("vpn_l2tp_users.php");

		exit;
	}
}

include("head.inc");
?>

<body link="#0000CC" vlink="#0000CC" alink="#0000CC" onload="<?= $jsevents["body"]["onload"] ?>">
<?php include("fbegin.inc"); ?>

<?php if ($input_errors) print_input_errors($input_errors); ?>
			<div id="inputerrors"></div>
            <form action="vpn_l2tp_users_edit.php" method="post" name="iform" id="iform">
              <div id="mainarea">
	          <table class="tabcont" width="100%" border="0" cellpadding="6" cellspacing="0" summary="vpn l2tp users edit">
                <tr>
                  <td width="22%" valign="top" class="vncellreq"><?=gettext("Username");?></td>
                  <td width="78%" class="vtable">
					<?=$mandfldhtml;?><input name="usernamefld" type="text" class="formfld user" id="usernamefld" size="20" value="<?=htmlspecialchars($pconfig['usernamefld']);?>" />
                  </td>
                </tr>
                <tr>
                  <td width="22%" valign="top" class="vncellreq"><?=gettext("Password");?></td>
                  <td width="78%" class="vtable">
                    <?=$mandfldhtml;?><input name="passwordfld" type="password" class="formfld pwd" id="passwordfld" size="20" />
                    <br /><?=$mandfldhtml;?><input name="passwordfld2" type="password" class="formfld pwd" id="passwordfld2" size="20" />
                    &nbsp;(<?=gettext("confirmation");?>)<?php if (isset($id) && $a_secret[$id]): ?><br />
                    <span class="vexpl"><?=gettext("If you want to change the users password, enter it here twice.");?></span>
                    <?php endif; ?></td>
                </tr>
                <tr>
                  <td width="22%" valign="top" class="vncell"><?=gettext("IP address");?></td>
                  <td width="78%" class="vtable">
                    <input name="ip" type="text" class="formfld unknown" id="ip" size="20" value="<?=htmlspecialchars($pconfig['ip']);?>" />
                    <br /><span class="vexpl"><?=gettext("If you want the user to be assigned a specific IP address, enter it here.");?></span></td>
                </tr>
                <tr>
                  <td width="22%" valign="top">&nbsp;</td>
                  <td width="78%">
                    <input id="submit" name="Submit" type="submit" class="formbtn" value="<?=gettext('Save');?>" />
                    <input type="button" class="formbtn" value="<?=gettext("Cancel");?>" onclick="window.location.href='<?=$referer;?>'" />
                    <input name="referer" type="hidden" value="<?=$referer;?>" />
                    <?php if (isset($id) && $a_secret[$id]): ?>
                    <input name="id" type="hidden" value="<?=htmlspecialchars($id);?>" />
                    <?php endif; ?>
                  </td>
                </tr>
              </table>
	      </div>
</form>

<?php include("fend.inc"); ?>
</body>
</html>