<?php
$loadavg_treshold = array(5,3,3);
$mailq_treshold   = 50;
$df_treshold      = 500 * 1024 * 1024;

$loadavg = sys_getloadavg();
$arrContextOptions=array("ssl"=>array("verify_peer"=>false,"verify_peer_name"=>false));
$mailq    = file_get_contents("https://127.0.0.1:9443/mailq.php", false, stream_context_create($arrContextOptions));
$df       = array ("/"                                    => disk_free_space("/"),
                   "/home"                                => disk_free_space("/home"),
                   "/var/lib/mysql"                       => disk_free_space("/var/lib/mysql"),
                   "/var/log"                             => disk_free_space("/var/log"),
                   "/var/local/hostingplatform/snapshots" => disk_free_space("/var/local/hostingplatform/snapshots"));
$disksize = array("/"                                     => disk_total_space("/"),
                  "/home"                                 => disk_total_space("/home"),
                  "/var/lib/mysql"                        => disk_total_space("/var/lib/mysql"),
                  "/var/log"                              => disk_total_space("/var/log"),
                  "/var/local/hostingplatform/snapshots"  => disk_total_space("/var/local/hostingplatform/snapshots"));

$return = array("status" => "OK");

# Load average #
$return["load"] = $loadavg;
for($i = 0; $i < count($loadavg); $i++) {
 if($loadavg[$i] > $loadavg_treshold[$i]) {
  $return["status"] = "PROBLEM";
 }
}

# MailQ #
$return["mailq"] = $mailq;
if($mailq > $mailq_treshold) {
 $return["status"] = "PROBLEM";
}

# DF #
$return["df"] = $df;
foreach($df as $filesystem => $free_space) {
 if($free_space < $df_treshold) {
  $return["status"] = "PROBLEM";
 }
}

# DISKSIZE #

$return["disksize"] = $disksize;

header('Content-Type: application/json');
print json_encode($return);
?>