patchstack / includes / admin / general.php

general.php in Patchstack – WordPress & Plugins Security 2.2.2, at includes/admin/general.php

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1	<?php
2
3	// Do not allow the file to be called directly.
4	if ( ! defined( 'ABSPATH' ) ) {
5	exit;
6	}
7
8	/**
9	* This class is used for any general admin functionality.
10	* For example to display general errors on all pages or event listeners.
11	*/
12	class P_Admin_General extends P_Core {
13
14	/**
15	* Add any general actions for the backend.
16	*
17	* @param Patchstack $core
18	* @return void
19	*/
20	public function __construct( $core ) {
21	parent::__construct( $core );
22
23	// Add admin and network notices.
24	add_action( 'admin_notices', [ $this, 'file_error_notice' ] );
25	add_action( 'network_admin_notices', [ $this, 'file_error_notice' ] );
26
27	add_action( 'wp_loaded', [ $this, 'update_rules' ] );
28	add_action( 'update_option_siteurl', [ $this, 'update_option_url' ], 10, 2 );
29	add_action( 'admin_init', [ $this, 'alter_ips' ] );
30	add_action( 'admin_init', [ $this, 'enable_settings' ] );
31
32	// If the firewall or whitelist rules do not exist, attempt to pull fresh.
33	$token = get_option( 'patchstack_api_token', false );
34	if ( ! empty( $token ) && ( get_option( 'patchstack_firewall_rules', '' ) == '' \|\| get_option( 'patchstack_whitelist_keys_rules' ) == '' ) && get_option( 'patchstack_license_free', 0 ) != 1 ) {
35	do_action( 'patchstack_post_dynamic_firewall_rules' );
36	}
37	}
38
39	/**
40	* Display error message if file/folder permissions are not set properly.
41	*
42	* @return void
43	*/
44	public function file_error_notice() {
45	// No need to display this error if the .htaccess functionality has been disabled.
46	if ( get_site_option( 'patchstack_disable_htaccess', 0 ) ) {
47	return;
48	}
49
50	// Check root .htaccess file and data folder writability.
51	$files = [];
52	if ( file_exists( ABSPATH . '.htaccess' ) && ! wp_is_writable( ABSPATH . '.htaccess' ) ) {
53	array_push( $files, ABSPATH . '.htaccess' );
54	}
55
56	// Are there any errors to display?
57	if ( count( $files ) > 0 ) {
58	?>
59	<div class="error notice">
60	<h2>Patchstack File Permission Error</h2>
61	<p><?php esc_html_e( 'The following file/folder could not be written to:<br />' . implode( '<br />', $files ), 'patchstack' ); ?></p>
62	<?php
63	foreach ( $files as $file ) {
64	echo wp_kses( '<p><b>Debug info: </b>' . $file . ' chmod permissions: <b>' . substr( decoct( fileperms( $file ) ), -3 ) . '</b>, owned by <b>' . posix_getpwuid( fileowner( $file ) )['name'] . '</b></p>', $this->allowed_html );
65	}
66	?>
67	<p><?php esc_html_e( '<strong>How to fix?</strong><br />CHMOD the file/folder to <strong>755</strong> through a <a href="http://www.dummies.com/web-design-development/wordpress/navigation-customization/how-to-change-file-permissions-using-filezilla-on-your-ftp-site/" target="_blank">FTP client</a>, <a href="http://support.hostgator.com/articles/cpanel/how-to-change-permissions-chmod-of-a-file" target="_blank">CPanel</a>, <a href="https://www.inmotionhosting.com/support/website/managing-files/change-file-permissions" target="_blank">WHM</a> or ask your hosting provider. Make sure file or folder ownership is set to <b>' . posix_getpwuid( fileowner( ABSPATH . 'index.php' ) )['name'] . '</b> user .', 'patchstack_file_error_notice' ); ?></p>
68	<p><?php esc_html_e( '<strong>CHMOD properly set but still not working?</strong><br />Make sure the group/owner (chown) settings of the /wp-content/plugins/patchstack/ folder is properly setup, you may have to ask your host to fix this.', 'patchstack_file_error_notice' ); ?></p>
69	</div>
70	<?php
71	}
72	}
73
74	/**
75	* When the user changes Patchstack plugin settings, update the firewall rules.
76	*
77	* @return void
78	*/
79	public function update_rules() {
80	if ( isset( $_GET['settings-updated'], $_GET['page'] ) && strpos( $_GET['page'], 'patchstack' ) !== false && current_user_can( 'administrator' ) ) {
81	$this->plugin->rules->post_firewall_rules();
82	$this->plugin->rules->dynamic_firewall_rules();
83
84	// Update firewall status after settings saved
85	$token = $this->plugin->api->get_access_token();
86
87	// Update the firewall status.
88	if ( ! empty( $token ) ) {
89	$this->plugin->api->update_firewall_status( [ 'status' => $this->get_option( 'patchstack_basic_firewall' ) == 1 ] );
90	}
91	}
92	}
93
94	/**
95	* When the user updates the site URL, update it on the API side as well.
96	* This needs to be done so we can communicate with the site properly.
97	*
98	* @param mixed $old_value
99	* @param mixed $new_value
100	* @return void
101	*/
102	public function update_option_url( $old_value, $new_value ) {
103	if ( $old_value != $new_value ) {
104	$this->plugin->api->update_url( [ 'plugin_url' => $new_value ] );
105	}
106	}
107
108	/**
109	* Executed when the user modifies the blocked or whitelisted IP addresses on the
110	* login protection settings page.
111	*
112	* @return void
113	*/
114	public function alter_ips() {
115	if ( ! isset( $_GET['action'], $_GET['PatchstackNonce'] ) \|\| ! wp_verify_nonce( $_GET['PatchstackNonce'], 'patchstack-nonce-alter-ips' ) \|\| ! current_user_can( 'administrator' ) \|\| ! in_array( $_GET['action'], [ 'patchstack_unblock', 'patchstack_unblock_whitelist', 'patchstack_whitelist' ] ) ) {
116	return;
117	}
118
119	global $wpdb;
120
121	// Unblock the IP; delete the logs of the IP.
122	if ( $_GET['action'] == 'patchstack_unblock' && isset( $_GET['id'] ) && ctype_digit( $_GET['id'] ) ) {
123	// First get the IP address to unblock.
124	$result = $wpdb->get_results(
125	$wpdb->prepare( 'SELECT ip FROM ' . $wpdb->prefix . 'patchstack_event_log WHERE id = %d', [ (int) $_GET['id'] ] )
126	);
127
128	// Unblock the IP address.
129	if ( isset( $result[0], $result[0]->ip ) ) {
130	$wpdb->query(
131	$wpdb->prepare( 'DELETE FROM ' . $wpdb->prefix . 'patchstack_event_log WHERE ip = %s', [ $result[0]->ip ] )
132	);
133	}
134	}
135
136	// Unblock and whitelist the IP.
137	if ( $_GET['action'] == 'patchstack_unblock_whitelist' && isset( $_GET['id'] ) && ctype_digit( $_GET['id'] ) ) {
138	// First get the IP address to whitelist.
139	$result = $wpdb->get_results(
140	$wpdb->prepare( 'SELECT ip FROM ' . $wpdb->prefix . 'patchstack_event_log WHERE id = %d', [ (int) $_GET['id'] ] )
141	);
142
143	// Whitelist and unblock the IP address.
144	if ( isset( $result[0], $result[0]->ip ) && filter_var( $result[0]->ip, FILTER_VALIDATE_IP ) ) {
145	update_option( 'patchstack_login_whitelist', $this->get_option( 'patchstack_login_whitelist', '' ) . "\n" . $result[0]->ip );
146	$wpdb->query(
147	$wpdb->prepare( 'DELETE FROM ' . $wpdb->prefix . 'patchstack_event_log WHERE ip = %s', [ $result[0]->ip ] )
148	);
149	}
150	}
151
152	// Whitelist an IP address.
153	if ( $_GET['action'] == 'patchstack_whitelist' && isset( $_GET['ip'] ) && filter_var( $_GET['ip'], FILTER_VALIDATE_IP ) ) {
154	update_option( 'patchstack_login_whitelist', $this->get_option( 'patchstack_login_whitelist', '' ) . "\n" . $_GET['ip'] );
155	}
156
157	// Redirect the user back to the login tab.
158	wp_safe_redirect( admin_url( 'admin.php?page=' . $this->plugin->name . '&tab=login' ) );
159	exit;
160	}
161
162	/**
163	* Turn on the Patchstack settings feature on WordPress.
164	*
165	* @return void
166	*/
167	public function enable_settings() {
168	if ( ! isset( $_GET['action'], $_GET['patchstack_settings_nonce'] ) \|\| ! wp_verify_nonce( $_GET['patchstack_settings_nonce'], 'patchstack_settings_nonce' ) \|\| ! current_user_can( 'administrator' ) \|\| $_GET['action'] != 'enable_settings' ) {
169	return;
170	}
171
172	// Turn it on.
173	update_option( 'patchstack_show_settings', 1 );
174
175	// Redirect the user back to the license page.
176	wp_safe_redirect( admin_url( 'admin.php?page=' . $this->plugin->name ) );
177	exit;
178	}
179	}
180