patchstack / patchstack.php

patchstack.php in Patchstack – WordPress & Plugins Security 2.1.17, at patchstack.php

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1	<?php
2	/**
3	* Plugin Name: Patchstack Security
4	* Plugin URI: https://patchstack.com
5	* Description: Patchstack identifies security vulnerabilities in WordPress plugins, themes, and core.
6	* Version: 2.1.17
7	* Author: Patchstack
8	* License: GPLv3
9	* Text Domain: patchstack
10	* Domain Path: /languages
11	* Requires at least: 4.4
12	* Requires PHP: 5.6
13	*/
14
15	// Do not allow the file to be called directly.
16	if ( ! defined( 'ABSPATH' ) ) {
17	exit;
18	}
19
20	if ( ! function_exists( 'patchstack_autoload_classes' ) ) {
21	/**
22	* Autoloads the Patchstack classes when called.
23	*
24	* @param string $class_name The class name to autoload.
25	* @return void
26	*/
27	function patchstack_autoload_classes( $class_name ) {
28	// If the requested class doesn't have our prefix, don't load it.
29	if ( strpos( $class_name, 'P_' ) !== 0 ) {
30	return;
31	}
32
33	// Set up our filename.
34	$file_name = strtolower( str_replace( '_', '-', substr( $class_name, strlen( 'P_' ) ) ) );
35	$dir = trailingslashit( dirname( __FILE__ ) ) . 'includes/';
36	$target = array( $dir . $file_name . '.php', $dir . 'admin/' . str_replace( 'admin-', '', $file_name ) . '.php' );
37
38	// Attempt each target and load if it exists.
39	foreach ( $target as $file ) {
40	if ( file_exists( $file ) ) {
41	include_once $file;
42	}
43	}
44	}
45	}
46	spl_autoload_register( 'patchstack_autoload_classes' );
47
48	if ( ! class_exists( 'patchstack' ) ) {
49
50	/**
51	* This is the main Patchstack class used for all Patchstack related features and to launch
52	* the Patchstack plugin.
53	*/
54	class Patchstack {
55
56	/**
57	* The plugin version.
58	*
59	* @var string
60	*/
61	const VERSION = '2.1.17';
62
63	/**
64	* API URL of Patchstack to communicate with.
65	*
66	* @var string
67	*/
68	const API_URL = 'https://api.patchstack.com';
69
70	/**
71	* API Auth URL of Patchstack to communicate with.
72	*
73	* @var string
74	*/
75	const AUTH_URL = 'https://auth.patchstack.com';
76
77	/**
78	* Client ID, this is only set when freshly downloaded from the app.
79	*
80	* @var string
81	*/
82	const CLIENT_ID = 'PATCHSTACK_CLIENT_ID';
83
84	/**
85	* Client private key, this is only set when freshly downloaded from the app.
86	*
87	* @var string
88	*/
89	const PRIVATE_KEY = 'PATCHSTACK_PRIVATE_KEY';
90
91	/**
92	* URL of the plugin directory.
93	*
94	* @var string
95	*/
96	protected $url = '';
97
98	/**
99	* Plugin basename.
100	*
101	* @var string
102	*/
103	protected $basename = '';
104
105	/**
106	* Plugin name.
107	*
108	* @var string
109	*/
110	protected $name = '';
111
112	/**
113	* Detailed activation error messages.
114	*
115	* @var array
116	*/
117	protected $activation_errors = array();
118
119	/**
120	* Singleton instance of plugin.
121	*
122	* @var Patchstack
123	*/
124	protected static $single_instance = null;
125
126	/**
127	* Define all the variables that will hold the Patchstack classes.
128	* These must be defined because it allows us to communicate from one class to the other.
129	*/
130	protected $firewall;
131	protected $firewall_base;
132	protected $activation;
133	protected $cron;
134	protected $api;
135	protected $login;
136	protected $ban;
137	protected $hardening;
138	protected $htaccess;
139	protected $hacker_log;
140	protected $upload;
141	protected $rules;
142	protected $hide_login;
143	protected $listener;
144	protected $event_log;
145	protected $multisite;
146	protected $notice;
147	protected $admin_ajax;
148	protected $admin_general;
149	protected $admin_menu;
150	protected $admin_options;
151
152	/**
153	* Setup a few base variables for the plugin.
154	* Also make sure certain constants are defined.
155	*
156	* @return void
157	*/
158	protected function __construct() {
159	// Set the permission constants if not already set.
160	if ( ! defined( 'FS_CHMOD_DIR' ) ) {
161	define( 'FS_CHMOD_DIR', ( fileperms( ABSPATH ) & 0777 \| 0755 ) );
162	}
163
164	if ( ! defined( 'FS_CHMOD_FILE' ) ) {
165	define( 'FS_CHMOD_FILE', ( fileperms( ABSPATH . 'index.php' ) & 0777 \| 0644 ) );
166	}
167
168	// Define local variables.
169	$this->basename = plugin_basename( __FILE__ );
170	$this->url = plugin_dir_url( __FILE__ );
171	$names = explode( '/', $this->basename );
172	$this->name = $names[0];
173	}
174
175	/**
176	* Call the constructor of all the Patchstack related classes.
177	*
178	* @return void
179	*/
180	public function plugin_classes() {
181	// Define the array of the classes.
182	foreach ( array(
183	'admin_options' => 'P_Admin_Options',
184	'cron' => 'P_Cron',
185	'api' => 'P_Api',
186	'login' => 'P_Login',
187	'ban' => 'P_Ban',
188	'hardening' => 'P_Hardening',
189	'htaccess' => 'P_Htaccess',
190	'hacker_log' => 'P_Hacker_Log',
191	'upload' => 'P_Upload',
192	'rules' => 'P_Rules',
193	'hide_login' => 'P_Hide_Login',
194	'listener' => 'P_Listener',
195	'event_log' => 'P_Event_Log',
196	'activation' => 'P_Activation',
197	'multisite' => 'P_Multisite',
198	'notice' => 'P_Cookie_Notice',
199	'admin_ajax' => 'P_Admin_Ajax',
200	'admin_general' => 'P_Admin_General',
201	'admin_menu' => 'P_Admin_Menu',
202	) as $var => $class ) {
203	$this->$var = new $class( $this );
204	}
205
206	$this->firewall_base = new P_Firewall( true, $this, true );
207	}
208
209	/**
210	* Activate the plugin.
211	*
212	* @return void
213	*/
214	public function activate() {
215	$this->plugin_classes();
216	$this->activation->activate( $this );
217	}
218
219	/**
220	* Deactivate the plugin.
221	*
222	* @return void
223	*/
224	public function deactivate() {
225	$this->plugin_classes();
226	$this->activation->deactivate();
227	}
228
229	/**
230	* Boot Patchstack and its classes.
231	*
232	* @return void
233	*/
234	public function hooks() {
235	add_action( 'init', array( $this, 'init' ), ~PHP_INT_MAX );
236	}
237
238	/**
239	* Boot Patchstack
240	*
241	* @return void
242	*/
243	public function init() {
244	// Load translated strings for plugin.
245	load_plugin_textdomain( 'patchstack', false, dirname( $this->basename ) . '/languages/' );
246
247	// Initialize plugin classes.
248	$this->plugin_classes();
249
250	// Perform migrations if necessary.
251	$this->activation->migrate_check();
252
253	// If license expiration has not been fetched yet while the plugin is active, update it.
254	if ( get_option( 'patchstack_api_token', '' ) == '' && get_option( 'patchstack_license_expiry', '' ) == '' ) {
255	$this->api->update_license_status();
256	}
257
258	// Determine if the license is activated and not expired.
259	if ( get_option( 'patchstack_license_activated', 0 ) == 1 && get_option( 'patchstack_basic_firewall', 0 ) == 1 && get_option( 'patchstack_license_free', 0 ) == 0 ) {
260	$this->firewall = new P_Firewall( true, $this );
261	}
262	}
263
264	/**
265	* Creates or returns an instance of this class.
266	*
267	* @return Patchstack
268	*/
269	public static function get_instance() {
270	if ( null === self::$single_instance ) {
271	self::$single_instance = new self();
272	}
273
274	return self::$single_instance;
275	}
276
277	/**
278	* Magic getter.
279	*
280	* @param string $field The field to magically get.
281	* @return mixed
282	*/
283	public function __get( $field ) {
284	switch ( $field ) {
285	case 'version':
286	return self::VERSION;
287	case 'api_url':
288	return self::API_URL;
289	case 'auth_url':
290	return self::AUTH_URL;
291	case 'client_id':
292	return self::CLIENT_ID;
293	case 'private_key':
294	return self::PRIVATE_KEY;
295	default:
296	try {
297	return $this->$field;
298	} catch ( \Exception $e ) {
299	return null;
300	}
301	}
302	}
303	}
304	}
305
306	if ( ! function_exists( 'patchstack_uninstall' ) ) {
307	/**
308	* Called when the plugin is uninstalled/removed from the site.
309	* This is not the same as deactivation, where the plugin still resides on the site.
310	*
311	* @return void
312	*/
313	function patchstack_uninstall() {
314	// Delete most of the Patchstack options.
315	$options = array( 'patchstack_eventlog_lastid', 'patchstack_api_token', 'patchstack_dashboardlock', 'patchstack_pluginedit', 'patchstack_move_logs', 'patchstack_userenum', 'patchstack_basicscanblock', 'patchstack_hidewpcontent', 'patchstack_hidewpversionk', 'patchstack_prevent_default_file_access', 'patchstack_basic_firewall', 'patchstack_known_blacklist', 'patchstack_block_debug_log_access', 'patchstack_block_fake_bots', 'patchstack_index_views', 'patchstack_proxy_comment_posting', 'patchstack_bad_query_strings', 'patchstack_advanced_character_string_filter', 'patchstack_advanced_blacklist_firewall', 'patchstack_forbid_rfi', 'patchstack_image_hotlinking', 'patchstack_add_security_headers', 'patchstack_firewall_log_lastid', 'patchstack_user_log_lastid', 'patchstack_captcha_public_key', 'patchstack_captcha_private_key', 'patchstack_scan_interval', 'patchstack_scan_day', 'patchstack_scan_time', 'patchstack_hackers_log', 'patchstack_users_log', 'patchstack_visitors_log', 'external_updates-webarx', 'patchstack_wp_stats', 'patchstack_captcha_login_form', 'patchstack_license_activated', 'patchstack_license_expiry', 'patchstack_software_data_hash', 'patchstack_mv_wp_login', 'patchstack_rename_wp_login', 'patchstack_googledrive_backup_is_running', 'patchstack_googledrive_upload_state', 'patchstack_googledrive_access_token', 'patchstack_googledrive_refresh_token', 'patchstack_cron_offset', 'patchstack_htaccess_rules_hash' );
316	foreach ( $options as $option ) {
317	delete_option( $option );
318
319	if ( is_multisite() ) {
320	delete_site_option( $option );
321	}
322	}
323
324	// Drop all Patchstack tables.
325	global $wpdb;
326	$tables = array( 'patchstack_user_log', 'patchstack_visitor_log', 'patchstack_firewall_log', 'patchstack_file_hashes', 'patchstack_logic', 'patchstack_ip', 'patchstack_event_log' );
327	foreach ( $tables as $table ) {
328	$wpdb->query( 'DROP TABLE IF EXISTS ' . $wpdb->prefix . $table );
329	}
330	}
331	}
332
333	if ( ! function_exists( 'patchstack' ) ) {
334	/**
335	* Grab the Patchstack object and return it.
336	*
337	* @return Patchstack
338	*/
339	function patchstack() {
340	return patchstack::get_instance();
341	}
342	}
343
344	// Kick it off.
345	add_action( 'plugins_loaded', array( patchstack(), 'hooks' ) );
346
347	// Activation and deactivation hooks.
348	register_activation_hook( __FILE__, array( patchstack(), 'activate' ) );
349	register_deactivation_hook( __FILE__, array( patchstack(), 'deactivate' ) );
350	register_uninstall_hook( __FILE__, 'patchstack_uninstall' );
351