|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace EricMakesStuff\ServerMonitor\Monitors; |
|
4
|
|
|
|
|
5
|
|
|
use Carbon\Carbon; |
|
6
|
|
|
use EricMakesStuff\ServerMonitor\Events\SSLCertificateExpiring; |
|
7
|
|
|
use EricMakesStuff\ServerMonitor\Events\SSLCertificateInvalid; |
|
8
|
|
|
use EricMakesStuff\ServerMonitor\Events\SSLCertificateValid; |
|
9
|
|
|
use EricMakesStuff\ServerMonitor\Exceptions\InvalidConfiguration; |
|
10
|
|
|
|
|
11
|
|
|
class SSLCertificateMonitor extends BaseMonitor |
|
12
|
|
|
{ |
|
13
|
|
|
/** @var array */ |
|
14
|
|
|
protected $certificateInfo; |
|
15
|
|
|
|
|
16
|
|
|
/** @var string */ |
|
17
|
|
|
protected $certificateExpiration; |
|
18
|
|
|
|
|
19
|
|
|
/** @var string */ |
|
20
|
|
|
protected $certificateDomain; |
|
21
|
|
|
|
|
22
|
|
|
/** @var array */ |
|
23
|
|
|
protected $certificateAdditionalDomains = []; |
|
24
|
|
|
|
|
25
|
|
|
/** @var int */ |
|
26
|
|
|
protected $certificateDaysUntilExpiration; |
|
27
|
|
|
|
|
28
|
|
|
/** @var string */ |
|
29
|
|
|
protected $url; |
|
30
|
|
|
|
|
31
|
|
|
/** @var array */ |
|
32
|
|
|
protected $alarmDaysBeforeExpiration = [28, 14, 7, 3, 2, 1, 0]; |
|
33
|
|
|
|
|
34
|
|
|
/** |
|
35
|
|
|
* @param array $config |
|
36
|
|
|
*/ |
|
37
|
|
|
public function __construct(array $config) |
|
38
|
|
|
{ |
|
39
|
|
|
if (!empty($config['url'])) { |
|
40
|
|
|
$this->url = $config['url']; |
|
41
|
|
|
} |
|
42
|
|
|
|
|
43
|
|
|
if (!empty($config['alarmDaysBeforeExpiration'])) { |
|
44
|
|
|
$this->alarmDaysBeforeExpiration = $config['alarmDaysBeforeExpiration']; |
|
45
|
|
|
} |
|
46
|
|
|
} |
|
47
|
|
|
|
|
48
|
|
|
/** |
|
49
|
|
|
* @throws InvalidConfiguration |
|
50
|
|
|
*/ |
|
51
|
|
|
public function runMonitor() |
|
52
|
|
|
{ |
|
53
|
|
|
$urlParts = $this->parseUrl($this->url); |
|
54
|
|
|
|
|
55
|
|
|
try { |
|
56
|
|
|
$this->certificateInfo = $this->downloadCertificate($urlParts); |
|
57
|
|
|
} catch (\ErrorException $e) { |
|
58
|
|
|
event(new SSLCertificateInvalid($this)); |
|
59
|
|
|
return false; |
|
60
|
|
|
} catch (\Exception $e) { |
|
61
|
|
|
throw InvalidConfiguration::urlCouldNotBeDownloaded(); |
|
62
|
|
|
} |
|
63
|
|
|
|
|
64
|
|
|
$this->processCertificate($this->certificateInfo); |
|
65
|
|
|
|
|
66
|
|
|
if ($this->certificateDaysUntilExpiration < 0 |
|
67
|
|
|
|| ! $this->hostCoveredByCertificate($urlParts['host'], $this->certificateDomain, $this->certificateAdditionalDomains)) { |
|
68
|
|
|
event(new SSLCertificateInvalid($this)); |
|
69
|
|
|
} elseif (in_array($this->certificateDaysUntilExpiration, $this->alarmDaysBeforeExpiration)) { |
|
70
|
|
|
event(new SSLCertificateExpiring($this)); |
|
71
|
|
|
} else { |
|
72
|
|
|
event(new SSLCertificateValid($this)); |
|
73
|
|
|
} |
|
74
|
|
|
} |
|
75
|
|
|
|
|
76
|
|
|
protected function downloadCertificate($urlParts) |
|
77
|
|
|
{ |
|
78
|
|
|
$streamContext = stream_context_create([ |
|
79
|
|
|
"ssl" => [ |
|
80
|
|
|
"capture_peer_cert" => TRUE |
|
81
|
|
|
] |
|
82
|
|
|
]); |
|
83
|
|
|
|
|
84
|
|
|
$streamClient = stream_socket_client("ssl://{$urlParts['host']}:443", $errno, $errstr, 30, STREAM_CLIENT_CONNECT, $streamContext); |
|
85
|
|
|
|
|
86
|
|
|
$certificateContext = stream_context_get_params($streamClient); |
|
87
|
|
|
|
|
88
|
|
|
return openssl_x509_parse($certificateContext['options']['ssl']['peer_certificate']); |
|
89
|
|
|
} |
|
90
|
|
|
|
|
91
|
|
|
public function processCertificate($certificateInfo) |
|
92
|
|
|
{ |
|
93
|
|
|
if (!empty($certificateInfo['subject']) && !empty($certificateInfo['subject']['CN'])) { |
|
94
|
|
|
$this->certificateDomain = $certificateInfo['subject']['CN']; |
|
95
|
|
|
} |
|
96
|
|
|
|
|
97
|
|
|
if (!empty($certificateInfo['validTo_time_t'])) { |
|
98
|
|
|
$validTo = Carbon::createFromTimestampUTC($certificateInfo['validTo_time_t']); |
|
99
|
|
|
$this->certificateExpiration = $validTo->toDateString(); |
|
100
|
|
|
$this->certificateDaysUntilExpiration = - $validTo->diffInDays(Carbon::now(), false); |
|
101
|
|
|
} |
|
102
|
|
|
|
|
103
|
|
|
if (!empty($certificateInfo['extensions']) && !empty($certificateInfo['extensions']['subjectAltName'])) { |
|
104
|
|
|
$this->certificateAdditionalDomains = []; |
|
105
|
|
|
$domains = explode(', ', $certificateInfo['extensions']['subjectAltName']); |
|
106
|
|
|
foreach ($domains as $domain) { |
|
107
|
|
|
$this->certificateAdditionalDomains[] = str_replace('DNS:', '', $domain); |
|
108
|
|
|
} |
|
109
|
|
|
} |
|
110
|
|
|
} |
|
111
|
|
|
|
|
112
|
|
|
public function hostCoveredByCertificate($host, $certificateHost, array $certificateAdditionalDomains = []) |
|
113
|
|
|
{ |
|
114
|
|
|
if ($host == $certificateHost) { |
|
115
|
|
|
return true; |
|
116
|
|
|
} |
|
117
|
|
|
|
|
118
|
|
|
// Determine if wildcard domain covers the host domain |
|
119
|
|
|
if ($certificateHost[0] == '*' && substr_count($host, '.') > 1) { |
|
120
|
|
|
$certificateHost = substr($certificateHost, 1); |
|
121
|
|
|
$host = substr($host, strpos($host, '.')); |
|
122
|
|
|
return $certificateHost == $host; |
|
123
|
|
|
} |
|
124
|
|
|
|
|
125
|
|
|
// Determine if the host domain is in the certificate's additional domains |
|
126
|
|
|
return in_array($host, $certificateAdditionalDomains); |
|
127
|
|
|
} |
|
128
|
|
|
|
|
129
|
|
|
protected function parseUrl($url) |
|
130
|
|
|
{ |
|
131
|
|
|
if (empty($url)) { |
|
132
|
|
|
throw InvalidConfiguration::noUrlConfigured(); |
|
133
|
|
|
} |
|
134
|
|
|
|
|
135
|
|
|
$urlParts = parse_url($url); |
|
136
|
|
|
|
|
137
|
|
|
if (!$urlParts) { |
|
138
|
|
|
throw InvalidConfiguration::urlCouldNotBeParsed(); |
|
139
|
|
|
} |
|
140
|
|
|
|
|
141
|
|
|
if (empty($urlParts['scheme']) || $urlParts['scheme'] != 'https') { |
|
142
|
|
|
throw InvalidConfiguration::urlNotSecure(); |
|
143
|
|
|
} |
|
144
|
|
|
|
|
145
|
|
|
return $urlParts; |
|
146
|
|
|
} |
|
147
|
|
|
|
|
148
|
|
|
public function getUrl() |
|
149
|
|
|
{ |
|
150
|
|
|
return $this->url; |
|
151
|
|
|
} |
|
152
|
|
|
|
|
153
|
|
|
public function getCertificateInfo() |
|
154
|
|
|
{ |
|
155
|
|
|
return $this->certificateInfo; |
|
156
|
|
|
} |
|
157
|
|
|
|
|
158
|
|
|
public function getCertificateExpiration() |
|
159
|
|
|
{ |
|
160
|
|
|
return $this->certificateExpiration; |
|
161
|
|
|
} |
|
162
|
|
|
|
|
163
|
|
|
public function getCertificateDomain() |
|
164
|
|
|
{ |
|
165
|
|
|
return $this->certificateDomain; |
|
166
|
|
|
} |
|
167
|
|
|
|
|
168
|
|
|
public function getCertificateDaysUntilExpiration() |
|
169
|
|
|
{ |
|
170
|
|
|
return $this->certificateDaysUntilExpiration; |
|
171
|
|
|
} |
|
172
|
|
|
|
|
173
|
|
|
public function getAlarmDaysBeforeExpiration() |
|
174
|
|
|
{ |
|
175
|
|
|
return $this->alarmDaysBeforeExpiration; |
|
176
|
|
|
} |
|
177
|
|
|
|
|
178
|
|
|
public function getCertificateAdditionalDomains() |
|
179
|
|
|
{ |
|
180
|
|
|
return $this->certificateAdditionalDomains; |
|
181
|
|
|
} |
|
182
|
|
|
} |
|
183
|
|
|
|
ericmakesstuff /
laravel-server-monitor
