patchstack / patchstack.php

patchstack.php in Patchstack – WordPress & Plugins Security 2.1.9, 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: 2.1.9
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 = '2.1.9';
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	* Known IP addresses.
93	*
94	* @var array
95	*/
96	protected $ips = array( '18.221.197.243', '52.15.237.250', '3.19.3.34', '3.18.238.17', '13.58.49.77', '18.222.191.77', '3.131.108.250', '3.23.157.140', '18.220.70.233', '3.140.84.221', '185.212.171.100' );
97
98	/**
99	* URL of the plugin directory.
100	*
101	* @var string
102	*/
103	protected $url = '';
104
105	/**
106	* Plugin basename.
107	*
108	* @var string
109	*/
110	protected $basename = '';
111
112	/**
113	* Plugin name.
114	*
115	* @var string
116	*/
117	protected $name = '';
118
119	/**
120	* Detailed activation error messages.
121	*
122	* @var array
123	*/
124	protected $activation_errors = array();
125
126	/**
127	* Singleton instance of plugin.
128	*
129	* @var Patchstack
130	*/
131	protected static $single_instance = null;
132
133	/**
134	* Define all the variables that will hold the Patchstack classes.
135	* These must be defined because it allows us to communicate from one class to the other.
136	*/
137	protected $firewall;
138	protected $firewall_base;
139	protected $activation;
140	protected $cron;
141	protected $api;
142	protected $login;
143	protected $ban;
144	protected $hardening;
145	protected $htaccess;
146	protected $hacker_log;
147	protected $upload;
148	protected $rules;
149	protected $listener;
150	protected $event_log;
151	protected $multisite;
152	protected $notice;
153	protected $admin_ajax;
154	protected $admin_general;
155	protected $admin_menu;
156	protected $admin_options;
157
158	/**
159	* Setup a few base variables for the plugin.
160	* Also make sure certain constants are defined.
161	*
162	* @return void
163	*/
164	protected function __construct() {
165	// Set the permission constants if not already set.
166	if ( ! defined( 'FS_CHMOD_DIR' ) ) {
167	define( 'FS_CHMOD_DIR', ( fileperms( ABSPATH ) & 0777 \| 0755 ) );
168	}
169
170	if ( ! defined( 'FS_CHMOD_FILE' ) ) {
171	define( 'FS_CHMOD_FILE', ( fileperms( ABSPATH . 'index.php' ) & 0777 \| 0644 ) );
172	}
173
174	// Define local variables.
175	$this->basename = plugin_basename( __FILE__ );
176	$this->url = plugin_dir_url( __FILE__ );
177	$names = explode( '/', $this->basename );
178	$this->name = $names[0];
179	}
180
181	/**
182	* Call the constructor of all the Patchstack related classes.
183	*
184	* @return void
185	*/
186	public function plugin_classes() {
187	// Define the array of the classes.
188	foreach ( array(
189	'admin_options' => 'P_Admin_Options',
190	'cron' => 'P_Cron',
191	'api' => 'P_Api',
192	'login' => 'P_Login',
193	'ban' => 'P_Ban',
194	'hardening' => 'P_Hardening',
195	'htaccess' => 'P_Htaccess',
196	'hacker_log' => 'P_Hacker_Log',
197	'upload' => 'P_Upload',
198	'rules' => 'P_Rules',
199	'listener' => 'P_Listener',
200	'event_log' => 'P_Event_Log',
201	'activation' => 'P_Activation',
202	'multisite' => 'P_Multisite',
203	'notice' => 'P_Cookie_Notice',
204	'admin_ajax' => 'P_Admin_Ajax',
205	'admin_general' => 'P_Admin_General',
206	'admin_menu' => 'P_Admin_Menu',
207	) as $var => $class ) {
208	$this->$var = new $class( $this );
209	}
210
211	$this->firewall_base = new P_Firewall( true, $this, true );
212	}
213
214	/**
215	* Activate the plugin.
216	*
217	* @return void
218	*/
219	public function activate() {
220	$this->plugin_classes();
221	$this->activation->activate( $this );
222	}
223
224	/**
225	* Deactivate the plugin.
226	*
227	* @return void
228	*/
229	public function deactivate() {
230	$this->plugin_classes();
231	$this->activation->deactivate();
232	}
233
234	/**
235	* Boot Patchstack and its classes.
236	*
237	* @return void
238	*/
239	public function hooks() {
240	add_action( 'init', array( $this, 'init' ), ~PHP_INT_MAX );
241	}
242
243	/**
244	* Boot Patchstack
245	*
246	* @return void
247	*/
248	public function init() {
249	// Load translated strings for plugin.
250	load_plugin_textdomain( 'patchstack', false, dirname( $this->basename ) . '/languages/' );
251
252	// Initialize plugin classes.
253	$this->plugin_classes();
254
255	// Perform migrations if necessary.
256	$this->activation->migrate_check();
257
258	// If license expiration has not been fetched yet while the plugin is active, update it.
259	if ( get_option( 'patchstack_api_token', '' ) == '' && get_option( 'patchstack_license_expiry', '' ) == '' ) {
260	$this->api->update_license_status();
261	}
262
263	// Determine if the license is activated and not expired.
264	if ( get_option( 'patchstack_license_activated', 0 ) == 1 && get_option( 'patchstack_basic_firewall', 0 ) == 1 && get_option( 'patchstack_license_free', 0 ) == 0 ) {
265	$this->firewall = new P_Firewall( true, $this );
266	}
267	}
268
269	/**
270	* Creates or returns an instance of this class.
271	*
272	* @return Patchstack
273	*/
274	public static function get_instance() {
275	if ( null === self::$single_instance ) {
276	self::$single_instance = new self();
277	}
278
279	return self::$single_instance;
280	}
281
282	/**
283	* Magic getter.
284	*
285	* @param string $field The field to magically get.
286	* @return mixed
287	*/
288	public function __get( $field ) {
289	switch ( $field ) {
290	case 'version':
291	return self::VERSION;
292	case 'api_url':
293	return self::API_URL;
294	case 'auth_url':
295	return self::AUTH_URL;
296	case 'client_id':
297	return self::CLIENT_ID;
298	case 'private_key':
299	return self::PRIVATE_KEY;
300	default:
301	try {
302	return $this->$field;
303	} catch ( \Exception $e ) {
304	return null;
305	}
306	}
307	}
308	}
309	}
310
311	if ( ! function_exists( 'patchstack_uninstall' ) ) {
312	/**
313	* Called when the plugin is uninstalled/removed from the site.
314	* This is not the same as deactivation, where the plugin still resides on the site.
315	*
316	* @return void
317	*/
318	function patchstack_uninstall() {
319	// Delete most of the Patchstack options.
320	$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' );
321	foreach ( $options as $option ) {
322	delete_option( $option );
323
324	if ( is_multisite() ) {
325	delete_site_option( $option );
326	}
327	}
328
329	// Drop all Patchstack tables.
330	global $wpdb;
331	$tables = array( 'patchstack_user_log', 'patchstack_visitor_log', 'patchstack_firewall_log', 'patchstack_file_hashes', 'patchstack_logic', 'patchstack_ip', 'patchstack_event_log' );
332	foreach ( $tables as $table ) {
333	$wpdb->query( 'DROP TABLE IF EXISTS ' . $wpdb->prefix . $table );
334	}
335	}
336	}
337
338	if ( ! function_exists( 'patchstack' ) ) {
339	/**
340	* Grab the Patchstack object and return it.
341	*
342	* @return Patchstack
343	*/
344	function patchstack() {
345	return patchstack::get_instance();
346	}
347	}
348
349	// Kick it off.
350	add_action( 'plugins_loaded', array( patchstack(), 'hooks' ) );
351
352	// Activation and deactivation hooks.
353	register_activation_hook( __FILE__, array( patchstack(), 'activate' ) );
354	register_deactivation_hook( __FILE__, array( patchstack(), 'deactivate' ) );
355	register_uninstall_hook( __FILE__, 'patchstack_uninstall' );
356