<?php
/* $Id$ */
/*
	services_snmp.php
	part of m0n0wall (http://m0n0.ch/wall)

	Copyright (C) 2003-2004 Manuel Kasper <mk@neon1.net>.
	All rights reserved.

	part of pfSense
	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.
*/
/*
	pfSense_MODULE:	snmp
*/

##|+PRIV
##|*IDENT=page-services-snmp
##|*NAME=Services: SNMP page
##|*DESCR=Allow access to the 'Services: SNMP' page.
##|*MATCH=services_snmp.php*
##|-PRIV

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

if (!is_array($config['snmpd'])) {
	$config['snmpd'] = array();
	$config['snmpd']['rocommunity'] = "public";
	$config['snmpd']['pollport'] = "161";
}

if (!is_array($config['snmpd']['modules'])) {
	$config['snmpd']['modules'] = array();
	$config['snmpd']['modules']['mibii'] = true;
	$config['snmpd']['modules']['netgraph'] = true;
	$config['snmpd']['modules']['pf'] = true;
	$config['snmpd']['modules']['hostres'] = true;
	$config['snmpd']['modules']['bridge'] = true;
	$config['snmpd']['modules']['ucd'] = true;
	$config['snmpd']['modules']['regex'] = true;
}
$pconfig['enable'] = isset($config['snmpd']['enable']);
$pconfig['pollport'] = $config['snmpd']['pollport'];
$pconfig['syslocation'] = $config['snmpd']['syslocation'];
$pconfig['syscontact'] = $config['snmpd']['syscontact'];
$pconfig['rocommunity'] = $config['snmpd']['rocommunity'];
/* disabled until some docs show up on what this does.
$pconfig['rwenable'] = isset($config['snmpd']['rwenable']);
$pconfig['rwcommunity'] = $config['snmpd']['rwcommunity'];
*/
$pconfig['trapenable'] = isset($config['snmpd']['trapenable']);
$pconfig['trapserver'] = $config['snmpd']['trapserver'];
$pconfig['trapserverport'] = $config['snmpd']['trapserverport'];
$pconfig['trapstring'] = $config['snmpd']['trapstring'];

$pconfig['mibii'] = isset($config['snmpd']['modules']['mibii']);
$pconfig['netgraph'] = isset($config['snmpd']['modules']['netgraph']);
$pconfig['pf'] = isset($config['snmpd']['modules']['pf']);
$pconfig['hostres'] = isset($config['snmpd']['modules']['hostres']);
$pconfig['bridge'] = isset($config['snmpd']['modules']['bridge']);
$pconfig['ucd'] = isset($config['snmpd']['modules']['ucd']);
$pconfig['regex'] = isset($config['snmpd']['modules']['regex']);
$pconfig['bindip'] = $config['snmpd']['bindip'];

if ($_POST) {

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

	/* input validation */
	if ($_POST['enable']) {
		if (strstr($_POST['syslocation'], "#")) {
			$input_errors[] = gettext("Invalid character '#' in system location");
		}
		if (strstr($_POST['syscontact'], "#")) {
			$input_errors[] = gettext("Invalid character '#' in system contact");
		}
		if (strstr($_POST['rocommunity'], "#")) {
			$input_errors[] = gettext("Invalid character '#' in read community string");
		}

		$reqdfields = explode(" ", "rocommunity");
		$reqdfieldsn = array(gettext("Community"));
		do_input_validation($_POST, $reqdfields, $reqdfieldsn, $input_errors);

		$reqdfields = explode(" ", "pollport");
		$reqdfieldsn = array(gettext("Polling Port"));
		do_input_validation($_POST, $reqdfields, $reqdfieldsn, $input_errors);


	}

	if ($_POST['trapenable']) {
		if (strstr($_POST['trapstring'], "#")) {
			$input_errors[] = gettext("Invalid character '#' in SNMP trap string");
		}

		$reqdfields = explode(" ", "trapserver");
		$reqdfieldsn = array(gettext("Trap server"));
		do_input_validation($_POST, $reqdfields, $reqdfieldsn, $input_errors);

		$reqdfields = explode(" ", "trapserverport");
		$reqdfieldsn = array(gettext("Trap server port"));
		do_input_validation($_POST, $reqdfields, $reqdfieldsn, $input_errors);

		$reqdfields = explode(" ", "trapstring");
		$reqdfieldsn = array(gettext("Trap string"));
		do_input_validation($_POST, $reqdfields, $reqdfieldsn, $input_errors);
	}


/* disabled until some docs show up on what this does.
	if ($_POST['rwenable']) {
		$reqdfields = explode(" ", "rwcommunity");
		$reqdfieldsn = explode(",", "Write community string");
		do_input_validation($_POST, $reqdfields, $reqdfieldsn, $input_errors);
	}
*/


	if (!$input_errors) {
		$config['snmpd']['enable'] = $_POST['enable'] ? true : false;
		$config['snmpd']['pollport'] = $_POST['pollport'];
		$config['snmpd']['syslocation'] = $_POST['syslocation'];
		$config['snmpd']['syscontact'] = $_POST['syscontact'];
		$config['snmpd']['rocommunity'] = $_POST['rocommunity'];
		/* disabled until some docs show up on what this does.
		$config['snmpd']['rwenable'] = $_POST['rwenable'] ? true : false;
		$config['snmpd']['rwcommunity'] = $_POST['rwcommunity'];
		*/
		$config['snmpd']['trapenable'] = $_POST['trapenable'] ? true : false;
		$config['snmpd']['trapserver'] = $_POST['trapserver'];
		$config['snmpd']['trapserverport'] = $_POST['trapserverport'];
		$config['snmpd']['trapstring'] = $_POST['trapstring'];

		$config['snmpd']['modules']['mibii'] = $_POST['mibii'] ? true : false;
		$config['snmpd']['modules']['netgraph'] = $_POST['netgraph'] ? true : false;
		$config['snmpd']['modules']['pf'] = $_POST['pf'] ? true : false;
		$config['snmpd']['modules']['hostres'] = $_POST['hostres'] ? true : false;
		$config['snmpd']['modules']['bridge'] = $_POST['bridge'] ? true : false;
		$config['snmpd']['modules']['ucd'] = $_POST['ucd'] ? true : false;
		$config['snmpd']['modules']['regex'] = $_POST['regex'] ? true : false;
		$config['snmpd']['bindip'] = $_POST['bindip'];

		write_config();

		$retval = 0;
		$retval = services_snmpd_configure();
		$savemsg = get_std_save_message($retval);
	}
}

$closehead = false;
$pgtitle = array(gettext("Services"), gettext("SNMP"));
$shortcut_section = "snmp";
include("head.inc");

?>
<script type="text/javascript">
//<![CDATA[
function check_deps() {
	if (jQuery('#hostres').prop('checked') == true) {
		jQuery('#mibii').prop('checked', true);
	}
}

function enable_change(whichone) {

	if (whichone.name == "trapenable") {
		if (whichone.checked == true) {
			document.iform.trapserver.disabled = false;
			document.iform.trapserverport.disabled = false;
			document.iform.trapstring.disabled = false;
		} else {
			document.iform.trapserver.disabled = true;
			document.iform.trapserverport.disabled = true;
			document.iform.trapstring.disabled = true;
		}
	}

	/* disabled until some docs show up on what this does.
	if (whichone.name == "rwenable") {
		if (whichone.checked == true) {
			document.iform.rwcommunity.disabled = false;
		} else {
			document.iform.rwcommunity.disabled = true;
		}
	}
	*/

	if (document.iform.enable.checked == true) {
		document.iform.pollport.disabled = false;
		document.iform.syslocation.disabled = false;
		document.iform.syscontact.disabled = false;
		document.iform.rocommunity.disabled = false;
		document.iform.trapenable.disabled = false;
		/* disabled until some docs show up on what this does.
		document.iform.rwenable.disabled = false;
		if (document.iform.rwenable.checked == true) {
			document.iform.rwcommunity.disabled = false;
		} else {
			document.iform.rwcommunity.disabled = true;
		}
		*/
		if (document.iform.trapenable.checked == true) {
			document.iform.trapserver.disabled = false;
			document.iform.trapserverport.disabled = false;
			document.iform.trapstring.disabled = false;
		} else {
			document.iform.trapserver.disabled = true;
			document.iform.trapserverport.disabled = true;
			document.iform.trapstring.disabled = true;
		}
		document.iform.mibii.disabled = false;
		document.iform.netgraph.disabled = false;
		document.iform.pf.disabled = false;
		document.iform.hostres.disabled = false;
		document.iform.ucd.disabled = false;
		document.iform.regex.disabled = false;
		//document.iform.bridge.disabled = false;
	} else {
		document.iform.pollport.disabled = true;
		document.iform.syslocation.disabled = true;
		document.iform.syscontact.disabled = true;
		document.iform.rocommunity.disabled = true;
		/*
		document.iform.rwenable.disabled = true;
		document.iform.rwcommunity.disabled = true;
		*/
		document.iform.trapenable.disabled = true;
		document.iform.trapserver.disabled = true;
		document.iform.trapserverport.disabled = true;
		document.iform.trapstring.disabled = true;

		document.iform.mibii.disabled = true;
		document.iform.netgraph.disabled = true;
		document.iform.pf.disabled = true;
		document.iform.hostres.disabled = true;
		document.iform.ucd.disabled = true;
		document.iform.regex.disabled = true;
		//document.iform.bridge.disabled = true;
	}
}
//]]>
</script>
</head>
<body link="#0000CC" vlink="#0000CC" alink="#0000CC">
<?php include("fbegin.inc"); ?>
<?php if ($input_errors) print_input_errors($input_errors); ?>
<?php if ($savemsg) print_info_box($savemsg); ?>
<form action="services_snmp.php" method="post" name="iform" id="iform">
	<table width="100%" border="0" cellpadding="6" cellspacing="0" summary="snmp">
		<tr>
			<td colspan="2" valign="top" class="optsect_t">
				<table border="0" cellspacing="0" cellpadding="0" width="100%" summary="enable">
					<tr>
						<td class="optsect_s"><strong><?=gettext("SNMP Daemon");?></strong></td>
						<td align="right" class="optsect_s">
							<input name="enable" id="enable" type="checkbox" value="yes" <?php if ($pconfig['enable']) echo "checked=\"checked\""; ?> onclick="enable_change(this)" /> <strong><?=gettext("Enable");?></strong>
						</td>
					</tr>
				</table>
			</td>
		</tr>

		<tr>
			<td width="22%" valign="top" class="vncellreq"><?=gettext("Polling Port ");?></td>
			<td width="78%" class="vtable">
				<input name="pollport" type="text" class="formfld unknown" id="pollport" size="40" value="<?=htmlspecialchars($pconfig['pollport']) ? htmlspecialchars($pconfig['pollport']) : htmlspecialchars(161);?>" />
				<br /><?=gettext("Enter the port to accept polling events on (default 161)");?><br />
			</td>
		</tr>

		<tr>
			<td width="22%" valign="top" class="vncell"><?=gettext("System location");?></td>
			<td width="78%" class="vtable">
				<input name="syslocation" type="text" class="formfld unknown" id="syslocation" size="40" value="<?=htmlspecialchars($pconfig['syslocation']);?>" />
			</td>
		</tr>

		<tr>
			<td width="22%" valign="top" class="vncell"><?=gettext("System contact");?></td>
			<td width="78%" class="vtable">
				<input name="syscontact" type="text" class="formfld unknown" id="syscontact" size="40" value="<?=htmlspecialchars($pconfig['syscontact']);?>" />
			</td>
		</tr>

		<tr>
			<td width="22%" valign="top" class="vncellreq"><?=gettext("Read Community String");?></td>
			<td width="78%" class="vtable">
				<input name="rocommunity" type="text" class="formfld unknown" id="rocommunity" size="40" value="<?=htmlspecialchars($pconfig['rocommunity']);?>" />
				<br /><?=gettext("The community string is like a password, restricting access to querying SNMP to hosts knowing the community string. Use a strong value here to protect from unauthorized information disclosure.");?><br />
			</td>
		</tr>
		<tr>
			<td>&nbsp;</td>
		</tr>

		<tr>
			<td colspan="2" valign="top" class="optsect_t">
				<table border="0" cellspacing="0" cellpadding="0" width="100%" summary="enable">
					<tr>
						<td class="optsect_s"><strong><?=gettext("SNMP Traps");?></strong></td>
						<td align="right" class="optsect_s">
							<input name="trapenable" id="trapenable" type="checkbox" value="yes" <?php if ($pconfig['trapenable']) echo "checked=\"checked\""; ?> onclick="enable_change(this)" /> <strong><?=gettext("Enable");?></strong>
						</td>
					</tr>
				</table>
			</td>
		</tr>
		<tr>
			<td width="22%" valign="top" class="vncellreq"><?=gettext("Trap server");?></td>
			<td width="78%" class="vtable">
				<input name="trapserver" type="text" class="formfld unknown" id="trapserver" size="40" value="<?=htmlspecialchars($pconfig['trapserver']);?>" />
				<br /><?=gettext("Enter trap server name");?><br />
			</td>
		</tr>
		<tr>
			<td width="22%" valign="top" class="vncellreq"><?=gettext("Trap server port ");?></td>
			<td width="78%" class="vtable">
				<input name="trapserverport" type="text" class="formfld unknown" id="trapserverport" size="40" value="<?=htmlspecialchars($pconfig['trapserverport']) ? htmlspecialchars($pconfig['trapserverport']) : htmlspecialchars(162);?>" />
				<br /><?=gettext("Enter the port to send the traps to (default 162)");?><br />
			</td>
		</tr>

		<tr>
			<td width="22%" valign="top" class="vncellreq"><?=gettext("Enter the SNMP trap string");?></td>
			<td width="78%" class="vtable">
				<input name="trapstring" type="text" class="formfld unknown" id="trapstring" size="40" value="<?=htmlspecialchars($pconfig['trapstring']);?>" />
				<br /><?=gettext("Trap string");?><br />
			</td>
		</tr>

		<tr>
			<td>&nbsp;</td>
		</tr>

		<tr>
			<td colspan="2" valign="top" class="optsect_t">
				<table border="0" cellspacing="0" cellpadding="0" width="100%" summary="modules">
					<tr>
						<td class="optsect_s"><strong><?=gettext("Modules");?></strong></td>
						<td align="right" class="optsect_s">&nbsp;</td>
					</tr>
				</table>
			</td>
		</tr>

		<tr>
			<td width="22%" valign="top" class="vncellreq"><?=gettext("SNMP Modules");?></td>
			<td width="78%" class="vtable">
				<input name="mibii" type="checkbox" id="mibii" value="yes" onclick="check_deps()" <?php if ($pconfig['mibii']) echo "checked=\"checked\""; ?> /><?=gettext("MibII"); ?>
				<br />
				<input name="netgraph" type="checkbox" id="netgraph" value="yes" <?php if ($pconfig['netgraph']) echo "checked=\"checked\""; ?> /><?=gettext("Netgraph"); ?>
				<br />
				<input name="pf" type="checkbox" id="pf" value="yes" <?php if ($pconfig['pf']) echo "checked=\"checked\""; ?> /><?=gettext("PF"); ?>
				<br />
				<input name="hostres" type="checkbox" id="hostres" value="yes" onclick="check_deps()" <?php if ($pconfig['hostres']) echo "checked=\"checked\""; ?> /><?=gettext("Host Resources (Requires MibII)");?>
				<br />
				<input name="ucd" type="checkbox" id="ucd" value="yes" <?php if ($pconfig['ucd']) echo "checked=\"checked\""; ?> /><?=gettext("UCD"); ?>
				<br />
				<input name="regex" type="checkbox" id="regex" value="yes" <?php if ($pconfig['regex']) echo "checked=\"checked\""; ?> /><?=gettext("Regex"); ?>
				<br />
			</td>
		</tr>

		<tr>
			<td>&nbsp;</td>
		</tr>

		<tr>
			<td colspan="2" valign="top" class="optsect_t">
				<table border="0" cellspacing="0" cellpadding="0" width="100%" summary="interface">
					<tr>
						<td class="optsect_s"><strong><?=gettext("Interface Binding");?></strong></td>
						<td align="right" class="optsect_s">&nbsp;</td>
					</tr>
				</table>
			</td>
		</tr>
		<tr>
			<td width="22%" valign="top" class="vncellreq"><?=gettext("Bind Interface"); ?></td>
			<td width="78%" class="vtable">
				<select name="bindip" class="formselect">
					<option value="">All</option>
				<?php
					$listenips = get_possible_listen_ips();
					foreach ($listenips as $lip => $ldescr):
						$selected = "";
						if ($lip == $pconfig['bindip']) {
							$selected = "selected=\"selected\"";
						}
				?>
					<option value="<?=$lip;?>" <?=$selected;?>>
						<?=htmlspecialchars($ldescr);?>
					</option>
				<?php
					endforeach;
					unset($listenips);
				?>
				</select>
			</td>
		</tr>
		<tr>
			<td width="22%" valign="top">&nbsp;</td>
			<td width="78%">
				<input name="Submit" type="submit" class="formbtn" value="<?=gettext("Save");?>" onclick="enable_change(true)" />
			</td>
		</tr>
	</table>
</form>
<script type="text/javascript">
//<![CDATA[
enable_change(this);
//]]>
</script>
<?php include("fend.inc"); ?>
</body>
</html>