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<?
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if(Connection_Aborted()) {
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	exit;
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}
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require_once("config.inc");
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function get_stats() {
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	$stats['cpu'] = cpu_usage();
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	$stats['mem'] = mem_usage();
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	$stats['uptime'] = get_uptime();
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	$stats['states'] = get_pfstate();
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	$stats['temp'] = get_temp();
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	$stats['datetime'] = update_date_time();
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	$stats['interfacestatistics'] = get_interfacestats();
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	$stats['interfacestatus'] = get_interfacestatus();
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	$stats = join("|", $stats);
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	return $stats;
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}
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function get_uptime() {
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	$boottime = "";
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	$matches = "";
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	exec("/sbin/sysctl -n kern.boottime", $boottime);
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	preg_match("/sec = (\d+)/", $boottime[0], $matches);
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	$boottime = $matches[1];
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	$uptime = time() - $boottime;
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	if(intval($boottime) == 0) 
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		return;
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	if(intval($uptime) == 0) 
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		return;
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	$updays = (int)($uptime / 86400);
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	$uptime %= 86400;
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	$uphours = (int)($uptime / 3600);
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	$uptime %= 3600;
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	$upmins = (int)($uptime / 60);
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	$uptimestr = "";
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	if ($updays > 1)
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		$uptimestr .= "$updays days, ";
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	else if ($updays > 0)
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		$uptimestr .= "1 day, ";
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	$uptimestr .= sprintf("%02d:%02d", $uphours, $upmins);
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	return $uptimestr;
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}
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function cpu_usage() {
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	exec("sysctl -n kern.cp_time && sleep 1 && sysctl -n kern.cp_time",$cpuTicksEx);
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	$cpuTicks = explode(" ", $cpuTicksEx[0]);
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	$cpuTicks2 = explode(" ", $cpuTicksEx[1]);
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	$diff = array();
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    $diff['user'] = ($cpuTicks2[0] - $cpuTicks[0]);
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    $diff['nice'] = ($cpuTicks2[1] - $cpuTicks[1]);
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    $diff['sys'] = ($cpuTicks2[2] - $cpuTicks[2]);
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    $diff['intr'] = ($cpuTicks2[3] - $cpuTicks[3]);
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    $diff['idle'] = ($cpuTicks2[4] - $cpuTicks[4]);
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    //echo "<!-- user: {$diff['user']}  nice {$diff['nice']}  sys {$diff['sys']}  intr {$diff['intr']}  idle {$diff['idle']} -->";
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    $totalDiff = $diff['user'] + $diff['nice'] + $diff['sys'] + $diff['intr'] + $diff['idle'];
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    $totalused = $diff['user'] + $diff['nice'] + $diff['sys'] + $diff['intr'];
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        if (isset($totalused)&&$totalused <= 0) {
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            $totalused = 0.001;
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        }
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    $cpuUsage = floor(100 * ($totalused / $totalDiff));
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	return $cpuUsage;
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}
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function get_pfstate() {
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	global $config;
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	$matches = "";
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	if (isset($config['system']['maximumstates']) and $config['system']['maximumstates'] > 0)
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	        $maxstates="{$config['system']['maximumstates']}";
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	else
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	        $maxstates=pfsense_default_state_size();
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	$curentries = `/sbin/pfctl -si |grep current`;
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	if (preg_match("/([0-9]+)/", $curentries, $matches)) {
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	     $curentries = $matches[1];
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	}
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	return $curentries . "/" . $maxstates;
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}
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function has_temp() {
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	/* no known temp monitors available at present */
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	/* should only reach here if there is no hardware monitor */
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	return false;
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}
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function get_hwtype() {
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	return;
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}
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function get_temp() {
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	switch(get_hwtype()) {
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		default:
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			return;
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	}
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	return $ret;
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}
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function disk_usage()
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{
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	$dfout = "";
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	exec("/bin/df -h | /usr/bin/grep -w '/' | /usr/bin/awk '{ print $5 }' | /usr/bin/cut -d '%' -f 1", $dfout);
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	$diskusage = trim($dfout[0]);
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	return $diskusage;
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}
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function swap_usage()
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{
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	$swapUsage = `/usr/sbin/swapinfo | /usr/bin/awk '{print $5;'}|/usr/bin/grep '%'`;
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	$swapUsage = ereg_replace('%', "", $swapUsage);
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	$swapUsage = rtrim($swapUsage);
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	return $swapUsage;
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}
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function mem_usage()
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{
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	$memory = "";
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	exec("/sbin/sysctl -n vm.stats.vm.v_page_count vm.stats.vm.v_inactive_count " .
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		"vm.stats.vm.v_cache_count vm.stats.vm.v_free_count", $memory);
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	$totalMem = $memory[0];
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	$availMem = $memory[1] + $memory[2] + $memory[3];
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	$usedMem = $totalMem - $availMem;
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	$memUsage = round(($usedMem * 100) / $totalMem, 0);
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	return $memUsage;
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}
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function update_date_time() {
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	$datetime = date("D M j G:i:s T Y");
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	return $datetime;
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}
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function get_interfacestats(){
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	global $config;
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	//build interface list for widget use
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	$ifdescrs = get_configured_interface_list();
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	$array_in_packets = array();
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	$array_out_packets = array();
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	$array_in_bytes = array();
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	$array_out_bytes = array();
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	$array_in_errors = array();
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	$array_out_errors = array();
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	$array_collisions = array();
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	$array_interrupt = array();
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	$new_data = "";
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	//build data arrays
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	foreach ($ifdescrs as $ifdescr => $ifname){
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		$ifinfo = get_interface_info($ifdescr);	
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			$new_data .= "{$ifinfo['inpkts']},";
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			$new_data .= "{$ifinfo['outpkts']},";
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			$new_data .= format_bytes($ifinfo['inbytes']) . ",";
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			$new_data .= format_bytes($ifinfo['outbytes']) . ",";
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			if (isset($ifinfo['inerrs'])){
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				$new_data .= "{$ifinfo['inerrs']},";
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				$new_data .= "{$ifinfo['outerrs']},";
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			}
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			else{
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				$new_data .= "0,";
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				$new_data .= "0,";
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			}
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			if (isset($ifinfo['collisions']))
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				$new_data .= htmlspecialchars($ifinfo['collisions']) . ",";
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			else
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				$new_data .= "0,";
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	}//end for
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	return $new_data;
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}
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function get_interfacestatus(){
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	$data = "";
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	global $config;
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	//build interface list for widget use
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	$ifdescrs = get_configured_interface_with_descr();
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	foreach ($ifdescrs as $ifdescr => $ifname){
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		$ifinfo = get_interface_info($ifdescr);
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		$data .= $ifname . ",";
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		if($ifinfo['status'] == "up" || $ifinfo['status'] == "associated") {
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			$data .= "up";
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		}else if ($ifinfo['status'] == "no carrier") {
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			$data .= "down";
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		}else if ($ifinfo['status'] == "down") {
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			$data .= "block";
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		}
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		$data .= ",";
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		if ($ifinfo['ipaddr']){ 
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			$data .= htmlspecialchars($ifinfo['ipaddr']);
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			if ($ifinfo['dhcplink']) {
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				$data .= " (DHCP)";
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			}
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		}
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		$data .= ",";
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		if ($ifinfo['status'] != "down")
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			$data .= htmlspecialchars($ifinfo['media']);
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		$data .= "~";
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	}	
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	return $data;
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}
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?>
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