#!/usr/local/bin/php
<?php
/* $Id$ */
/*
        load_balancer_pool_edit.php
        part of pfSense (http://www.pfsense.com/)

        Copyright (C) 2005 Bill Marquette <bill.marquette@gmail.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.
*/

require("guiconfig.inc");
if (!is_array($config['load_balancer']['lbpool'])) {
        $config['load_balancer']['lbpool'] = array();
}
$a_pool = &$config['load_balancer']['lbpool'];

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

if (isset($id) && $a_pool[$id]) {
	$pconfig['monitorip'] = $a_pool[$id]['monitorip'];
	$pconfig['type'] = $a_pool[$id]['type'];
	$pconfig['name'] = $a_pool[$id]['name'];
	$pconfig['desc'] = $a_pool[$id]['desc'];
	$pconfig['port'] = $a_pool[$id]['port'];
	$pconfig['servers'] = &$a_pool[$id]['servers'];
	$pconfig['monitor'] = $a_pool[$id]['monitor'];
}

$changedesc = "Load Balancer: Pool: ";
$changecount = 0;

if ($_POST) {
	$changecount++;

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

	/* input validation */
	if($POST['type'] == "server") {
		$reqdfields = explode(" ", "name port monitor servers");
		$reqdfieldsn = explode(",", "Name,Port,Monitor,Server List");
	} else {
		$reqdfields = explode(" ", "name servers");
		$reqdfieldsn = explode(",", "Name,Server List");		
	}

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

	/* Ensure that our pool names are unique */
	for ($i=0; isset($config['load_balancer']['lbpool'][$i]); $i++)
		if (($_POST['name'] == $config['load_balancer']['lbpool'][$i]['name']) && ($i != $id))
			$input_errors[] = "This pool name has already been used.  Pool names must be unique.";
	if (!is_port($_POST['port']))
		if($POST['type'] == "server")
			$input_errors[] = "The port must be an integer between 1 and 65535.";
	if (is_array($_POST['servers'])) {
		foreach($pconfig['servers'] as $svrent) {
			if (!is_ipaddr($svrent)) {
				if($POST['type'] == "server") {
					$input_errors[] = "{$svrent} is not a valid IP address.";
				} else {
					$split_ip = split("\|", $svrent);
					if(!is_ipaddr($split_ip[0]))
						$input_errors[] = "{$split_ip[0]} is not a valid IP address.";
					if(!is_ipaddr($split_ip[1]))
						$input_errors[] = "{$split_ip[1]} is not a valid IP address.";
				}
			}
		}
	}

	if($POST['type'] == "server") {
		if ($_POST['monitor'] != "TCP" && $_POST['monitor'] != "HTTP" && $_POST['monitor'] != "ICMP")
			$input_errors[] = "Invalid monitor chosen.";
	}

	if (!$input_errors) {
		$poolent = array();
		if(isset($id) && $a_pool[$id])
			$poolent = $a_pool[$id];
		if($poolent['name'] != "")
			$changedesc .= " modified '{$poolent['name']}' pool:";
		
		update_if_changed("type", $poolent['type'], $_POST['type']);
		update_if_changed("monitorip", $poolent['monitorip'], $_POST['monitorip']);
		update_if_changed("name", $poolent['name'], $_POST['name']);
		update_if_changed("description", $poolent['desc'], $_POST['desc']);
		update_if_changed("port", $poolent['port'], $_POST['port']);
		update_if_changed("servers", $poolent['servers'], $_POST['servers']);
		update_if_changed("monitor", $poolent['monitor'], $_POST['monitor']);

		if (isset($id) && $a_pool[$id]) {
			/* modify all virtual servers with this name */
			for ($i = 0; isset($config['load_balancer']['virtual_server'][$i]); $i++) {
				if ($config['load_balancer']['virtual_server'][$i]['pool'] == $a_pool[$id]['name'])
					$config['load_balancer']['virtual_server'][$i]['pool'] = $poolent['name'];
			}
			$a_pool[$id] = $poolent;
		} else
			$a_pool[] = $poolent;


		if ($changecount > 0) {
			/* Mark pool dirty */
			touch($d_poolconfdirty_path);
			write_config($changedesc);
		}

		header("Location: load_balancer_pool.php");
		exit;
	}
}

$pgtitle = "Load Balancer: Pool: Edit";
include("head.inc");

?>

<body link="#0000CC" vlink="#0000CC" alink="#0000CC">
<script type="text/javascript" language="javascript" src="pool.js"></script>

<script language="javascript">
function type_change(enable_change) {
	switch (document.iform.type.selectedIndex) {
		case 0:
			clearcombo();
			document.iform.serversSelect.clear;
			document.iform.monitorip.disabled = 1;
			document.iform.monitorip.value = "";
			document.iform.port.disabled = 0;
			document.iform.monitor.selectedIndex = 0;
			document.iform.monitor.disabled = 0;
			break;
		case 1:
			clearcombo();
			document.iform.monitorip.disabled = 0;
			document.iform.monitorip.value = "";
			document.iform.port.disabled = 1;
			/* set to ICMP */
			document.iform.monitor.selectedIndex = 1;
			document.iform.monitor.disabled = 1;
			break;
	}
}
function clearcombo(){
  for (var i=document.iform.serversSelect.options.length-1; i>=0; i--){
    document.iform.serversSelect.options[i] = null;
  }
  document.iform.serversSelect.selectedIndex = -1;
}
</script>

<?php include("fbegin.inc"); ?>
<p class="pgtitle"><?=$pgtitle?></p>
<?php if ($input_errors) print_input_errors($input_errors); ?>

	<form action="load_balancer_pool_edit.php" method="post" name="iform" id="iform">
	<table width="100%" border="0" cellpadding="6" cellspacing="0">
		<tr align="left">
			<td width="22%" valign="top" class="vncellreq">Name</td>
			<td width="78%" class="vtable" colspan="2">
				<input name="name" type="text" <?if(isset($pconfig['name'])) echo "value=\"{$pconfig['name']}\"";?> size="16" maxlength="16">
			</td>
		</tr>
		<tr align="left">
			<td width="22%" valign="top" class="vncellreq">Description</td>
			<td width="78%" class="vtable" colspan="2">
				<input name="desc" type="text" <?if(isset($pconfig['desc'])) echo "value=\"{$pconfig['desc']}\"";?>size="64">
			</td>
		</tr>

		<tr align="left">
			<td width="22%" valign="top" class="vncellreq">Type</td>
			<td width="78%" class="vtable" colspan="2">
				<select name="type" id="type" onchange="type_change();">
					<option value="server"<?php if($pconfig['type'] == "server") echo " SELECTED"; ?>>Server</option>
					<option value="gateway"<?php if($pconfig['type'] == "gateway") echo " SELECTED"; ?>>Gateway</option>
				</select>
			</td>
		</tr>
		
		<tr align="left">
			<td width="22%" valign="top" class="vncellreq">Port</td>
			<td width="78%" class="vtable" colspan="2">
				<input name="port" type="text" <?if(isset($pconfig['port'])) echo "value=\"{$pconfig['port']}\"";?> size="16" maxlength="16"> - server pool port, this is the port your servers are listening to.
			</td>
		</tr>
		<tr align="left">
			<td width="22%" valign="top" class="vncellreq">Monitor</td>
			<td width="78%" class="vtable" colspan="2">
				<select id="monitor" name="monitor">
					<option value="TCP">TCP</option>
					<option value="ICMP">ICMP</option>
					<!-- billm - XXX: add HTTP/HTTPS here -->
				</select>
			</td>
		</tr>
		<tr align="left">
			<td width="22%" valign="top" class="vncellreq">Monitor IP</td>
			<td width="78%" class="vtable" colspan="2">
				<input size="16" id="monitorip" name="monitorip" value="<?php echo $pconfig['monitorip']; ?>">
			</td>
		</tr>			
		<tr align="left">
			<td width="22%" valign="top" class="vncellreq">IP</td>
			<td width="78%" class="vtable">
				<input name="ipaddr" type="text" size="16"> 
				<input class="formbtn" type="button" name="button1" value="Add to pool" onclick="AddServerToPool(document.iform);">
			</td>
		</tr>
		<tr>
			<td width="22%" valign="top" class="vncellreq">List</td>
			<td width="78%" class="vtable" colspan="2" valign="top">
				<table>
					<tbody>
					<tr>
						<td>
							<select id="serversSelect" name="servers[]" multiple="true" size="5">
							
<?php
							echo $a_pool[$id]['servers'];
							if (is_array($pconfig['servers'])) {
								foreach($pconfig['servers'] as $svrent) {
									echo "    <option value=\"{$svrent}\">{$svrent}</option>\n";
								}
							}
							echo "</select>";
?>
						</td>
						<td valign="top">
							<input class="formbtn" type="button" name="button2" value="Remove from pool" onclick="RemoveServerFromPool(document.iform);">
						</td>
					</tr>
					</tbody>
				</table>
			</td>
		</tr>
		<tr align="left">
			<td colspan="2" align="center" align="left" valign="bottom">
				<input name="Submit" type="submit" class="formbtn" value="Save" onClick="AllServers('serversSelect', true)">
				<?php if (isset($id) && $a_pool[$id]): ?>
				<input name="id" type="hidden" value="<?=$id;?>">
				<?php endif; ?>
			</td>
		</tr>
	</table>
	</form>
<script language="javascript">
<?php if(!$id) echo "type_change();\n"; ?>
</script>
<?php include("fend.inc"); ?>
</body>
</html>