1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
<?php declare(strict_types = 0);
/*
** Zabbix
** Copyright (C) 2001-2023 Zabbix SIA
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
**/
/**
* Class is used to parse <sec|#num>:<time_shift> trigger parameter.
*/
class CPeriodParser extends CParser {
private $simple_interval_parser;
private $relative_time_parser;
/**
* An options array.
*
* Supported options:
* 'usermacros' => false Enable user macros usage in the periods.
* 'lldmacros' => false Enable low-level discovery macros usage in the periods.
*
* @var array
*/
protected $options = [
'usermacros' => false,
'lldmacros' => false
];
/**
* @var string
*/
private $sec_num = '';
/**
* @var string
*/
private $timeshift = '';
/**
* @param array $options
* @param bool $options['lldmacros']
*/
public function __construct(array $options) {
$this->options = $options + $this->options;
$this->simple_interval_parser = new CSimpleIntervalParser([
'usermacros' => $this->options['usermacros'],
'lldmacros' => $this->options['lldmacros'],
'with_year' => true
]);
$this->relative_time_parser = new CRelativeTimeParser([
'usermacros' => $this->options['usermacros'],
'lldmacros' => $this->options['lldmacros']
]);
}
/**
* Parse period.
*
* @param string $source
* @param int $pos
*
* @return int
*/
public function parse($source, $pos = 0): int {
$this->match = '';
$this->length = 0;
$this->sec_num = '';
$this->timeshift = '';
$p = $pos;
$sec_num = '';
$timeshift = '';
if (preg_match('/^#[0-9]+/', substr($source, $p), $matches)) {
$sec_num = $matches[0];
$p += strlen($matches[0]);
}
elseif ($this->simple_interval_parser->parse($source, $p) !== self::PARSE_FAIL) {
$sec_num = $this->simple_interval_parser->match;
$p += $this->simple_interval_parser->length;
}
else {
return self::PARSE_FAIL;
}
if (isset($source[$p]) && $source[$p] === ':') {
if ($this->relative_time_parser->parse($source, $p + 1) !== self::PARSE_FAIL) {
$timeshift = $this->relative_time_parser->match;
$p += $this->relative_time_parser->length + 1;
}
}
$this->length = $p - $pos;
$this->match = substr($source, $pos, $this->length);
$this->sec_num = $sec_num;
$this->timeshift = $timeshift;
return isset($source[$p]) ? self::PARSE_SUCCESS_CONT : self::PARSE_SUCCESS;
}
/**
* Returns the first part of the period.
*
* @return string
*/
public function getSecNum(): string {
return $this->sec_num;
}
/**
* Returns the second part of the period.
*
* @return string
*/
public function getTimeshift(): string {
return $this->timeshift;
}
}
|
