gdpr-press / src / Admin / Ajax.php

Ajax.php in GDPRess | Eliminate external requests to increase GDPR compliance trunk, at src/Admin/Ajax.php

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1	<?php
2	/**
3	* @package GDPRess
4	* @author Daan van den Bergh
5	* https://daan.dev
6	*/
7
8	namespace GDPRess\Admin;
9
10	class Ajax {
11
12	/**
13	* Set fields.
14	*
15	* @return void
16	*/
17	public function __construct() {
18	$this->init();
19	}
20
21	/**
22	* Filters & Hooks.
23	*
24	* @return void
25	*/
26	private function init() {
27	add_action( 'wp_ajax_gdpress_fetch', [ $this, 'fetch' ] );
28	add_action( 'wp_ajax_gdpress_flush', [ $this, 'flush' ] );
29	}
30
31	/**
32	* Basic logic for fetching external resources.
33	*
34	* @return void
35	*/
36	public function fetch() {
37	check_ajax_referer( Settings::GDPRESS_ADMIN_PAGE, 'nonce' );
38
39	if ( ! current_user_can( 'manage_options' ) ) {
40	wp_die( __( "Sorry, you're not allowed to do this.", 'gdpr-press' ) );
41	}
42
43	$this->do_flush();
44
45	/**
46	* Trigger a request to the frontend, so the 'template_redirect' action is initiated.
47	*
48	* We're adding the gdpress parameter to ensure proper execution.
49	*
50	* @see OutputProcessor::init()
51	*/
52	$site_url = get_home_url() . '?gdpress';
53	$response = wp_remote_get( $site_url, [ 'timeout' => 60 ] );
54
55	if ( is_wp_error( $response ) ) {
56	/**
57	* Dies eventually, so no need to return.
58	*
59	* @var \WP_Error $response
60	*/
61	wp_send_json_error( $response->get_error_code() . ': ' . $response->get_error_message() );
62	}
63
64	wp_send_json_success();
65	}
66
67	/**
68	* @return void
69	*/
70	private function do_flush() {
71	$entries = array_filter( (array) glob( GDPRESS_CACHE_ABSPATH . '/*' ) );
72
73	foreach ( $entries as $entry ) {
74	$this->delete( $entry );
75	}
76
77	$db_cleanup = [
78	Settings::GDPRESS_MANAGE_SETTING_REQUESTS,
79	Settings::GDPRESS_MANAGE_SETTING_LOCAL,
80	Settings::GDPRESS_MANAGE_SETTING_EXCLUDED,
81	];
82
83	foreach ( $db_cleanup as $option ) {
84	delete_option( $option );
85	}
86	}
87
88	/**
89	* @param $entry
90	*/
91	private function delete( $entry ) {
92	if ( is_dir( $entry ) ) {
93	$file = new \FilesystemIterator( $entry );
94
95	// If dir is empty, valid() returns false.
96	while ( $file->valid() ) {
97	$this->delete( $file->getPathName() );
98	$file->next();
99	}
100
101	rmdir( $entry );
102	} else {
103	unlink( $entry );
104	}
105	}
106
107	/**
108	* Flush the cache directory and remove DB settings.
109	*
110	* @return void
111	*/
112	public function flush() {
113	check_ajax_referer( Settings::GDPRESS_ADMIN_PAGE, 'nonce' );
114
115	if ( ! current_user_can( 'manage_options' ) ) {
116	wp_die( __( "Sorry, you're not allowed to do this.", 'gdpr-press' ) );
117	}
118
119	try {
120	$this->do_flush();
121
122	Notice::set_notice( __( 'GDPRess Bot has successfully cleared its cache.', 'gdpr-press' ) );
123	} catch ( \Exception $e ) {
124	Notice::set_notice(
125	__( 'GDPRess Bot could not empty the cache directory: ', 'gdpr-press' ) . $e->getMessage(),
126	'error',
127	'all',
128	'gdpress-cache-flush-error'
129	);
130	}
131	}
132	}
133