Delete.php — WP STAGING – WordPress Backups, Restore, Migration & Clone 4.11.2

wp-staging / Backup / Ajax / Delete.php

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Delete.php

153 lines

1	<?php
2
3	namespace WPStaging\Backup\Ajax;
4
5	use Exception;
6	use SplFileInfo;
7	use WPStaging\Backup\Entity\BackupMetadata;
8	use WPStaging\Backup\Exceptions\BackupRuntimeException;
9	use WPStaging\Backup\Service\BackupsFinder;
10	use WPStaging\Backup\Utils\BackupPathResolver;
11	use WPStaging\Framework\Component\AbstractTemplateComponent;
12	use WPStaging\Framework\Filesystem\FileObject;
13	use WPStaging\Framework\TemplateEngine\TemplateEngine;
14	use WPStaging\Framework\Utils\Cache\TransientCache;
15
16	use function WPStaging\functions\debug_log;
17
18	class Delete extends AbstractTemplateComponent
19	{
20
21	private $backupsFinder;
22
23
24	private $backupPathResolver;
25
26	public function __construct(BackupsFinder $backupsFinder, BackupPathResolver $backupPathResolver, TemplateEngine $templateEngine)
27	{
28	parent::__construct($templateEngine);
29	$this->backupsFinder = $backupsFinder;
30	$this->backupPathResolver = $backupPathResolver;
31	}
32
33	public function render()
34	{
35	if (!$this->canRenderAjax()) {
36	return;
37	}
38
39	$md5 = isset($_POST['md5']) ? sanitize_text_field($_POST['md5']) : '';
40
41	if (strlen($md5) !== 32) {
42	wp_send_json([
43	'error' => true,
44	'message' => __('Invalid request.', 'wp-staging'),
45	]);
46	}
47
48	$backups = $this->backupsFinder->findBackups();
49
50
51	if (empty($backups)) {
52	wp_send_json([
53	'error' => true,
54	'message' => __('No backups found, nothing to delete.', 'wp-staging'),
55	]);
56	}
57
58	foreach ($backups as $backup) {
59	if ($md5 === md5($backup->getBasename())) {
60	$this->deleteBackup($backup);
61	}
62	}
63	}
64
65
66
67
68
69	protected function deleteBackup($backup)
70	{
71	if (!$this->deleteSplitBackupParts($backup)) {
72	return;
73	}
74
75	$deleted = unlink($backup->getRealPath());
76
77	if ($deleted) {
78	delete_transient(TransientCache::KEY_INVALID_BACKUP_FILE_INDEX);
79	wp_send_json([
80	'error' => false,
81	'message' => __('Successfully deleted the backup.', 'wp-staging'),
82	]);
83	} else {
84	debug_log('WP STAGING: User tried to delete backup but "unlink" returned false. Backup that couldn\'t be deleted: ' . $backup->getRealPath());
85
86	wp_send_json([
87	'error' => true,
88	'message' => __('Could not delete the backup. Maybe a permission issue?', 'wp-staging'),
89	]);
90	}
91	}
92
93
94
95
96
97
98	protected function deleteSplitBackupParts($backup)
99	{
100	clearstatcache();
101
102	try {
103	$file = new FileObject($backup->getRealPath(), FileObject::MODE_APPEND_AND_READ);
104	$backupMetadata = new BackupMetadata();
105	$backupMetadata = $backupMetadata->hydrateByFile($file);
106	} catch (Exception $e) {
107
108	debug_log('WP STAGING: User tried to delete backup but "unlink" returned false on deleting backup parts. Backup that couldn\'t be deleted: ' . $backup->getRealPath());
109
110	return true;
111	}
112
113
114	if (!$backupMetadata->getIsMultipartBackup()) {
115	return true;
116	}
117
118	$errors = [];
119
120	foreach ($backupMetadata->getMultipartMetadata()->getBackupParts() as $part) {
121	$backupPart = $this->backupPathResolver->resolveBackupPartPath($part, $backup->getFilename());
122	if ($backupPart === '') {
123	debug_log('WP STAGING: Refused to delete a backup part that does not belong to this backup: ' . $part);
124	continue;
125	}
126
127	if (!file_exists($backupPart)) {
128	continue;
129	}
130
131	$deleted = unlink($backupPart);
132	if (!$deleted) {
133	$error = "Couldn't delete backup part. Maybe Permission Issue? Part: " . $backupPart;
134	debug_log('WP STAGING: ' . $error);
135
136	$errors[] = $error;
137	}
138	}
139
140	if (count($errors) === 0) {
141	return false;
142	}
143
144	wp_send_json([
145	'error' => true,
146	'message' => '',
147	'messages' => $errors,
148	]);
149
150	return false;
151	}
152	}
153