defender-security / src / component / logger / class-rotation-logger.php

class-rotation-logger.php in Defender Security – Malware Scanner, Login Security & Firewall 6.2.2, at src/component/logger/class-rotation-logger.php

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1	<?php
2	/**
3	* The log rotation class.
4	*
5	* @package WP_Defender\Component\Logger
6	*/
7
8	namespace WP_Defender\Component\Logger;
9
10	use GlobIterator;
11	use WP_Defender\Traits\IO;
12	use WP_Defender\Component\Network_Cron_Manager;
13
14	/**
15	* Deals rotation log file naming & purging old logs.
16	*/
17	class Rotation_Logger implements Rotation_Logger_Interface {
18
19	use IO;
20
21	public const ROTATION_FREQUENCY = 7;
22	public const ROTATION_UNIT = 'day';
23
24	/**
25	* Class constructor to clear file status cache.
26	*/
27	public function __construct() {
28	clearstatcache();
29	}
30
31	/**
32	* Generate a new filename with date suffix.
33	*
34	* @param string $filename Filename which requires date suffix.
35	*
36	* @return string Formatted date suffixed file name.
37	*/
38	public function generate_file_name( $filename ) {
39	$file_parts = pathinfo( $filename );
40
41	$file_name = $file_parts['filename'] . wp_date( '-Y-m-d' );
42
43	$directory_path = $this->get_tmp_path();
44	$iterator = new GlobIterator( $directory_path . '/' . $file_name . '*' );
45
46	if ( file_exists( $iterator->getPathname() ) ) {
47	$file_name = $iterator->getBasename();
48	} else {
49	$file_name = uniqid( $file_name . '-' );
50
51	if ( isset( $file_parts['extension'] ) && '' !== $file_parts['extension'] ) {
52	$file_name .= '.' . $file_parts['extension'];
53	}
54	}
55
56	return $file_name;
57	}
58
59	/**
60	* Purge logs whose modified time exceeded the threshold limit.
61	*
62	* @param string $directory_path Pathname of the directory.
63	* @param int $count A period as integer value.
64	* @param string $unit A standard datetime relative format unit, like days or months.
65	*/
66	public function purge_old_log(
67	$directory_path = '',
68	$count = self::ROTATION_FREQUENCY,
69	$unit = self::ROTATION_UNIT
70	) {
71	$threshold_timestamp = strtotime( '-' . $count . $unit );
72	if ( '' === $directory_path ) {
73	$directory_path = $this->get_tmp_path();
74	}
75	$iterator = new GlobIterator( $directory_path . '/*.log' );
76
77	while ( $iterator->valid() ) {
78
79	if ( $iterator->getMTime() < $threshold_timestamp ) {
80	wp_delete_file( $iterator->getPathname() );
81	}
82
83	$iterator->next();
84	}
85	}
86
87	/**
88	* Invoke all init methods.
89	*/
90	public function init() {
91	/**
92	* Delete old logs rotationally.
93	*
94	* @var Network_Cron_Manager $network_cron_manager
95	*/
96	$network_cron_manager = wd_di()->get( Network_Cron_Manager::class );
97	$network_cron_manager->register_callback(
98	'wpdef_log_rotational_delete',
99	array( $this, 'purge_old_log' ),
100	DAY_IN_SECONDS
101	);
102	}
103	}
104