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 CRAP
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1<?php
2
3namespace BO\Zmsclient;
4
5use Fig\Http\Message\StatusCodeInterface;
6use Psr\Http\Message\ResponseInterface;
7
8/**
9 * Healthcheck concerning the API
10 */
11class Status
12{
13    /**
14     * throws exception on critical status variables
15     *
16     * @SuppressWarnings(Complexity)
17     */
18    public static function testStatus(ResponseInterface $response, mixed $status): ResponseInterface
19    {
20        $result = '';
21        if ($status instanceof \Closure) {
22            try {
23                $status = $status();
24            } catch (\Exception $exception) {
25                $status = false;
26                $result = "FATAL - " . $exception->getMessage();
27            }
28        }
29        if ($status !== false && $status !== null && $result === '') {
30            $result = [];
31            $result[] = self::getDldbUpdateStats($status);
32
33            if ($status['mail']['oldestSeconds'] > 300) {
34                $result[] = "WARN - Oldest mail with age in seconds: "
35                    . $status['mail']['oldestSeconds'] . 's';
36            }
37            if ($status['database']['logbin'] != 'ON') {
38                $result[] = "WARN - DB connection without replication log detected";
39            }
40            if ($status['database']['clusterStatus'] == 'OFF') {
41                $result[] = "WARN - DB connection is not part of a galera cluster";
42            }
43            if ($status['database']['locks'] > 10) {
44                $result[] = "WARN - High amount of DB-Locks: " . $status['database']['locks'];
45            }
46            if ($status['database']['threads'] > 30) {
47                $result[] = "WARN - High amount of DB-Threads: " . $status['database']['threads'];
48            }
49            if ($status['database']['nodeConnections'] > 50) {
50                $result[] = "WARN - DB connected thread over 50% of available connections";
51            }
52            if (
53                isset($status['processes'])
54                && isset($status['processes']['lastCalculate'])
55                && is_string($status['processes']['lastCalculate'])
56            ) {
57                $lastCalculate = strtotime($status['processes']['lastCalculate']);
58                if ($lastCalculate !== false && time() - $lastCalculate > 600) {
59                    $slotOutdate = time() - $lastCalculate;
60                    $result[] = "WARN - slot calculation is $slotOutdate seconds old";
61                }
62            }
63            $result = preg_grep('/./', $result);
64            if (!count($result)) {
65                $result = "OK - "
66                    . "DB=" . $status['database']['nodeConnections'] . "%"
67                    . " Threads=" . $status['database']['threads']
68                    . " Locks=" . $status['database']['locks']
69                    ;
70            } else {
71                $result = implode('; ', $result);
72            }
73        }
74
75        $response->getBody()->write($result);
76        $response = $response->withHeader('Content-Type', 'text/plain');
77
78        if (strpos($result, 'CRIT') !== false || strpos($result, 'FATAL') !== false) {
79            $response = $response->withStatus(
80                StatusCodeInterface::STATUS_INTERNAL_SERVER_ERROR,
81                'The Server is in a bad condition.'
82            );
83        }
84
85        return $response;
86    }
87
88    public static function getDldbUpdateStats(mixed $status): string
89    {
90        $result = '';
91        if (isset($status['sources'])) {
92            $now = new \DateTimeImmutable();
93            $lastDldbUpdate = new \DateTimeImmutable($status['sources']['dldb']['last']);
94            if (
95                ($lastDldbUpdate->getTimestamp() + 7200) < $now->getTimestamp() &&
96                ($lastDldbUpdate->getTimestamp() + 14400) > $now->getTimestamp()
97            ) {
98                $result = "WARN - Last DLDB Import is more then 2 hours ago";
99            } elseif (($lastDldbUpdate->getTimestamp() + 14400) < $now->getTimestamp()) {
100                $result = "CRIT - Last DLDB Import is more then 4 hours ago";
101            }
102        }
103        return $result;
104    }
105}