path: root/src/etc/inc/notices.inc

<?php
/****h* pfSense/notices
	NAME
		notices.inc - pfSense notice utilities
	DESCRIPTION
		This include contains the pfSense notice facilities.
	HISTORY
		$Id$

	Copyright (C) 2009 Scott Ullrich (sullrich@gmail.com)
	Copyright (C) 2005 Colin Smith (ethethlay@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)
	RISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
	POSSIBILITY OF SUCH DAMAGE.
 */

/*
	pfSense_BUILDER_BINARIES:	/bin/echo
	pfSense_MODULE:	notifications
*/

require_once("globals.inc");
require_once("led.inc");

$notice_path = $g['tmp_path'] . '/notices';
$smtp_authentication_mechanisms = array(
	'PLAIN' => 'PLAIN',
	'LOGIN' => 'LOGIN');
/* Other SMTP Authentication Mechanisms that could be supported.
 * Note that MD5 is no longer considered secure.
 *	'GSSAPI' => 'GSSAPI ' . gettext("Generic Security Services Application Program Interface")
 *	'DIGEST-MD5' => 'DIGEST-MD5 ' . gettext("Digest access authentication")
 *	'MD5' => 'MD5'
 *	'CRAM-MD5' => 'CRAM-MD5'
*/

/****f* notices/file_notice
 * NAME
 *   file_notice
 * INPUTS
 *	 $id, $notice, $category, $url, $priority
 * RESULT
 *   Files a notice and kicks off the various alerts, smtp, growl, system log, LED's, etc.
 ******/
function file_notice($id, $notice, $category = "General", $url = "", $priority = 1) {
	/*
	 * $category - Category that this notice should be displayed under. This can be arbitrary,
	 * 	       but a page must be set to receive this messages for it to be displayed.
	 *
	 * $priority - A notice's priority. Higher numbers indicate greater severity.
	 *	       0 = informational, 1 = warning, 2 = error, etc. This may also be arbitrary,
	 */
	global $notice_path;
	if (!$queue = get_notices()) {
		$queue = array();
	}
	$queuekey = time();
	$toqueue = array(
				'id'		=> $id,
				'notice'	=> $notice,
				'url'		=> $url,
				'category'	=> $category,
				'priority'	=> $priority,
			);
	$queue[$queuekey] = $toqueue;
	$queueout = fopen($notice_path, "w");
	if (!$queueout) {
		log_error(printf(gettext("Could not open %s for writing"), $notice_path));
		return;
	}
	fwrite($queueout, serialize($queue));
	fclose($queueout);
	log_error("New alert found: $notice");
	/* soekris */
	if (file_exists("/dev/led/error")) {
		exec("/bin/echo 1 > /dev/led/error");
	}
	/* wrap & alix */
	led_normalize();
	led_morse(1, 'sos');
	notify_via_growl($notice);
	notify_via_smtp($notice);
	return $queuekey;
}

/****f* notices/get_notices
 * NAME
 *   get_notices
 * INPUTS
 *	 $category
 * RESULT
 *   Returns a specific notices text
 ******/
function get_notices($category = "all") {
	global $g;

	if (file_exists("{$g['tmp_path']}/notices")) {
		$queue = unserialize(file_get_contents("{$g['tmp_path']}/notices"));
		if (!$queue) {
			return false;
		}
		if ($category != 'all') {
			foreach ($queue as $time => $notice) {
				if (strtolower($notice['category']) == strtolower($category)) {
					$toreturn[$time] = $notice;
				}
			}
			return $toreturn;
		} else {
			return $queue;
		}
	} else {
		return false;
	}
}

/****f* notices/close_notice
 * NAME
 *   close_notice
 * INPUTS
 *	 $id
 * RESULT
 *   Removes a notice from the list
 ******/
function close_notice($id) {
	global $notice_path;
	require_once("util.inc");
	/* soekris */
	if (file_exists("/dev/led/error")) {
		exec("/bin/echo 0 > /dev/led/error");
	}
	/* wrap & alix */
	led_normalize();
	$ids = array();
	if (!$notices = get_notices()) {
		return;
	}
	if ($id == "all") {
		unlink_if_exists($notice_path);
		return;
	}
	foreach (array_keys($notices) as $time) {
		if ($id == $time) {
			unset($notices[$id]);
			break;
		}
	}
	foreach ($notices as $key => $notice) {
		$ids[$key] = $notice['id'];
	}
	foreach ($ids as $time => $tocheck) {
		if ($id == $tocheck) {
			unset($notices[$time]);
			break;
		}
	}
	if (count($notices) != 0) {
		$queueout = fopen($notice_path, "w");
		fwrite($queueout, serialize($notices));
		fclose($queueout);
	} else {
		unlink_if_exists($notice_path);
	}

	return;
}

/****f* notices/dump_xml_notices
 * NAME
 *   dump_xml_notices
 * INPUTS
 *	 NONE
 * RESULT
 *   Outputs notices in XML formatted text
 ******/
function dump_xml_notices() {
	if (file_exists("/cf/conf/use_xmlreader")) {
		require_once("xmlreader.inc");
	} else {
		require_once("xmlparse.inc");
	}
	global $notice_path, $listtags;
	$listtags[] = 'notice';
	if (!$notices = get_notices()) {
		return;
	}
	foreach ($notices as $time => $notice) {
		$notice['time'] = $time;
		$toput['notice'][] = $notice;
	}
	$xml = dump_xml_config($toput, 'notices');
	return $xml;
}

/****f* notices/print_notices
 * NAME
 *   print_notices
 * INPUTS
 *	 $notices, $category
 * RESULT
 *   prints notices to the GUI
 ******/
function print_notices($notices, $category = "all") {
	foreach ($notices as $notice) {
		if ($category != "all") {
			if (in_array($notice['category'], $category)) {
				$categories[] = $notice['category'];
			}
		} else {
			$categories[] = $notice['category'];
		}
	}
	$categories = array_unique($categories);
	sort($categories);
	foreach ($categories as $category) {
		$toreturn .= "<ul><li>{$category}<ul>";
		foreach ($notices as $notice) {
			if (strtolower($notice['category']) == strtolower($category)) {
				if ($notice['id'] != "") {
					if ($notice['url'] != "") {
						$toreturn .= "<li><a href={$notice['url']}>{$notice['id']}</a> - {$notice['notice']}</li>";
					} else {
						$toreturn .= "<li>{$notice['id']} - {$notice['notice']}</li>";
					}
				}
			}
		}
		$toreturn .= "</ul></li></ul>";
	}
	return $toreturn;
}

/****f* notices/print_notice_box
 * NAME
 *   print_notice_box
 * INPUTS
 *	 $category
 * RESULT
 *   prints an info box to the GUI
 ******/
function print_notice_box($category = "all") {
	$notices = get_notices();
	if (!$notices) {
		return;
	}
	print_info_box_np(print_notices($notices, $category));
	return;
}

/****f* notices/are_notices_pending
 * NAME
 *   are_notices_pending
 * INPUTS
 *	 $category to check
 * RESULT
 *   returns true if notices are pending, false if they are not
 ******/
function are_notices_pending($category = "all") {
	global $notice_path;
	if (file_exists($notice_path)) {
		return true;
	}
	return false;
}

/****f* notices/notify_via_smtp
 * NAME
 *   notify_via_smtp
 * INPUTS
 *	 notification string to send as an email
 * RESULT
 *   returns true if message was sent
 ******/
function notify_via_smtp($message, $force = false) {
	global $config, $g;
	if (platform_booting()) {
		return;
	}

	if (isset($config['notifications']['smtp']['disable']) && !$force) {
		return;
	}

	/* Do NOT send the same message twice */
	if (file_exists("/var/db/notices_lastmsg.txt")) {
		$lastmsg = trim(file_get_contents("/var/db/notices_lastmsg.txt"));
		if ($lastmsg == $message) {
			return;
		}
	}

	/* Store last message sent to avoid spamming */
	$fd = fopen("/var/db/notices_lastmsg.txt", "w");
	fwrite($fd, $message);
	fclose($fd);

	send_smtp_message($message, "{$config['system']['hostname']}.{$config['system']['domain']} - Notification", $force);
	return;
}

function send_smtp_message($message, $subject = "(no subject)", $force = false) {
	global $config, $g;
	require_once("sasl.inc");
	require_once("smtp.inc");

	if (isset($config['notifications']['smtp']['disable']) && !$force) {
		return;
	}

	if (!$config['notifications']['smtp']['ipaddress']) {
		return;
	}

	if (!$config['notifications']['smtp']['notifyemailaddress']) {
		return;
	}

	$smtp = new smtp_class;

	$from = "pfsense@{$config['system']['hostname']}.{$config['system']['domain']}";
	$to = $config['notifications']['smtp']['notifyemailaddress'];

	$smtp->host_name = $config['notifications']['smtp']['ipaddress'];
	$smtp->host_port = empty($config['notifications']['smtp']['port']) ? 25 : $config['notifications']['smtp']['port'];

	$smtp->direct_delivery = 0;
	$smtp->ssl = (isset($config['notifications']['smtp']['ssl'])) ? 1 : 0;
	$smtp->tls = (isset($config['notifications']['smtp']['tls'])) ? 1 : 0;
	$smtp->debug = 0;
	$smtp->html_debug = 0;
	$smtp->localhost = $config['system']['hostname'] . "." . $config['system']['domain'];

	if ($config['notifications']['smtp']['fromaddress']) {
		$from = $config['notifications']['smtp']['fromaddress'];
	}

	// Use SMTP Auth if fields are filled out
	if ($config['notifications']['smtp']['username'] &&
	    $config['notifications']['smtp']['password']) {
		if (isset($config['notifications']['smtp']['authentication_mechanism'])) {
			$smtp->authentication_mechanism = $config['notifications']['smtp']['authentication_mechanism'];
		} else {
			$smtp->authentication_mechanism = "PLAIN";
		}
		$smtp->user = $config['notifications']['smtp']['username'];
		$smtp->password = $config['notifications']['smtp']['password'];
	}

	$headers = array(
		"From: {$from}",
		"To: {$to}",
		"Subject: {$subject}",
		"Date: " . date("r")
	);

	if ($smtp->SendMessage($from, preg_split('/\s*,\s*/', trim($to)), $headers, $message)) {
		log_error(sprintf(gettext("Message sent to %s OK"), $to));
		return;
	} else {
		log_error(sprintf(gettext('Could not send the message to %1$s -- Error: %2$s'), $to, $smtp->error));
		return(sprintf(gettext('Could not send the message to %1$s -- Error: %2$s'), $to, $smtp->error));
	}
}

/****f* notices/notify_via_growl
 * NAME
 *   notify_via_growl
 * INPUTS
 *	 notification string to send
 * RESULT
 *   returns true if message was sent
 ******/
function notify_via_growl($message, $force=false) {
	require_once("growl.class");
	global $config, $g;

	if (isset($config['notifications']['growl']['disable']) && !$force) {
		return;
	}

	/* Do NOT send the same message twice */
	if (file_exists("/var/db/growlnotices_lastmsg.txt")) {
		$lastmsg = trim(file_get_contents("/var/db/growlnotices_lastmsg.txt"));
		if ($lastmsg == $message) {
			return;
		}
	}

	$hostname = $config['system']['hostname'] . "." . $config['system']['domain'];
	$growl_ip = $config['notifications']['growl']['ipaddress'];
	$growl_password = $config['notifications']['growl']['password'];
	$growl_name = $config['notifications']['growl']['name'];
	$growl_notification = $config['notifications']['growl']['notification_name'];

	if (!empty($growl_ip) && (is_ipaddr($growl_ip) || dns_get_record($growl_ip, DNS_A) || dns_get_record($growl_ip, DNS_AAAA))) {
		$growl = new Growl($growl_ip, $growl_password, $growl_name);
		$growl->notify("{$growl_notification}", gettext(sprintf("%s (%s) - Notification", $g['product_name'], $hostname)), "{$message}");
	}

	/* Store last message sent to avoid spamming */
	$fd = fopen("/var/db/growlnotices_lastmsg.txt", "w");
	fwrite($fd, $message);
	fclose($fd);
}

/****f* notices/register_via_growl
 * NAME
 *   register_via_growl
 * INPUTS
 *	 none
 * RESULT
 *   none
 ******/
function register_via_growl() {
	require_once("growl.class");
	global $config;
	$growl_ip = $config['notifications']['growl']['ipaddress'];
	$growl_password = $config['notifications']['growl']['password'];
	$growl_name = $config['notifications']['growl']['name'];
	$growl_notification = $config['notifications']['growl']['notification_name'];

	if ($growl_ip) {
		$growl = new Growl($growl_ip, $growl_password, $growl_name);
		$growl->addNotification($growl_notification);
		$growl->register();
	}
}

/* Notify via remote methods only - not via GUI. */
function notify_all_remote($msg) {
	notify_via_smtp($msg);
	notify_via_growl($msg);
}

?>