server-error-notification.php — CloudSecure WP Security 1.4.6

cloudsecure-wp-security / modules / server-error-notification.php

cloudsecure-wp-security / modules Last commit date

admin 3 months ago cli 8 months ago lib 3 months ago captcha.php 3 months ago cloudsecure-wp.php 3 months ago common.php 3 months ago config.php 2 years ago disable-access-system-file.php 4 months ago disable-author-query.php 2 years ago disable-login.php 3 months ago disable-restapi.php 7 months ago disable-xmlrpc.php 1 year ago htaccess.php 3 months ago login-log.php 3 months ago login-notification.php 1 year ago rename-login-page.php 3 months ago restrict-admin-page.php 3 months ago server-error-notification.php 3 months ago two-factor-authentication.php 3 months ago unify-messages.php 2 years ago update-notice.php 7 months ago waf-engine.php 3 months ago waf.php 3 months ago

server-error-notification.php

264 lines

1	<?php
2
3	if ( ! defined( 'ABSPATH' ) ) {
4	exit;
5	}
6
7	class CloudSecureWP_Server_Error_Notification extends CloudSecureWP_Common {
8	private const KEY_FEATURE = 'server_error_notification';
9	private const TABLE_NAME = 'cloudsecurewp_server_error';
10	private const MAX_ITEMS = 10000;
11
12	private $config;
13
14	function __construct( array $info, CloudSecureWP_Config $config ) {
15	parent::__construct( $info );
16	$this->config = $config;
17	}
18
19	/**
20	* 機能毎のKEY取得
21	*
22	* @return string
23	*/
24	public function get_feature_key(): string {
25	return self::KEY_FEATURE;
26	}
27
28	/**
29	* テーブル名取得
30	*
31	* @return string
32	*/
33	public function get_table_name(): string {
34	global $wpdb;
35
36	return $wpdb->prefix . self::TABLE_NAME;
37	}
38
39	/**
40	* サーバーエラーを追加
41	*
42	* @param array $error
43	*
44	* @return void
45	*/
46	private function insert_error( array $error ): void {
47	global $wpdb;
48	$table_name = $wpdb->prefix . self::TABLE_NAME;
49	$max_items = self::MAX_ITEMS;
50	$error['created_at'] = current_time( 'mysql' );
51
52	if ( is_null( $error['message'] ) ) {
53	$error['message'] = '';
54	}
55
56	if ( is_null( $error['file'] ) ) {
57	$error['file'] = '';
58	}
59
60	if ( mb_strlen( $error['message'], 'UTF-8' ) > 65535 ) {
61	$error['message'] = mb_substr( $error['message'], 0, 65535, 'UTF-8' );
62	}
63
64	if ( mb_strlen( $error['file'], 'UTF-8' ) > 65535 ) {
65	$error['file'] = mb_substr( $error['file'], 0, 65535, 'UTF-8' );
66	}
67
68	$wpdb->query( 'START TRANSACTION' );
69	$wpdb->insert( $table_name, $error );
70	$wpdb->query( $wpdb->prepare( "DELETE FROM {$wpdb->prefix}cloudsecurewp_server_error WHERE id <= (SELECT id FROM (SELECT id FROM {$wpdb->prefix}cloudsecurewp_server_error ORDER BY id DESC LIMIT 1 OFFSET %d) tmp)", $max_items ) );
71	$wpdb->query( 'COMMIT' );
72	}
73
74	/**
75	* サーバーエラーを取得
76	*
77	* @param string $orderby
78	* @param string $order
79	* @param int $per_page
80	* @param int $offset
81	*
82	* @return array
83	*/
84	public function get_server_errors( string $orderby, string $order, int $per_page, int $offset ): array {
85	global $wpdb;
86	$table_name = $wpdb->prefix . self::TABLE_NAME;
87	$allowed_orderby = array( 'created_at', 'type', 'message', 'file', 'line', 'id' );
88	$orderby = in_array( $orderby, $allowed_orderby, true ) ? $orderby : 'created_at';
89	$order = ( 'asc' === $order ) ? 'ASC' : 'DESC';
90	$sql = "SELECT * FROM $table_name ORDER BY {$orderby} {$order} LIMIT %d OFFSET %d";
91
92	return array(
93	$wpdb->get_results( $wpdb->prepare( $sql, $per_page, $offset ), ARRAY_A ),
94	$wpdb->get_var( "SELECT count(*) FROM {$wpdb->prefix}cloudsecurewp_server_error" ),
95	);
96	}
97
98	/**
99	* 有効無効判定
100	*
101	* @return bool
102	*/
103	public function is_enabled(): bool {
104	return $this->config->get( $this->get_feature_key() ) === 't';
105	}
106
107	/**
108	* 初期設定値取得
109	*
110	* @return array
111	*/
112	public function get_default(): array {
113	return array( self::KEY_FEATURE => $this->check_environment() ? 't' : 'f' );
114	}
115
116	/**
117	* 設定値取得
118	*/
119	public function get_settings(): array {
120	$settings = array();
121	$default = $this->get_default();
122
123	foreach ( $default as $key => $val ) {
124	$settings[ $key ] = $this->config->get( $key );
125	}
126
127	return $settings;
128	}
129
130	/**
131	* 設定値保存
132	*
133	* @param array $settings
134	*
135	* @return void
136	*/
137	public function save_settings( array $settings ): void {
138	$default = $this->get_default();
139
140	foreach ( $default as $key => $val ) {
141	$this->config->set( $key, $settings[ $key ] ?? '' );
142	}
143
144	$this->config->save();
145	}
146
147	/**
148	* エラータイプ名称を取得
149	*
150	* @param int $error_type
151	*
152	* @return string
153	*/
154	private function get_error_type_name( int $error_type ): string {
155	// 下記のコードを参考にさせていただきました。
156	// https://github.com/WordPress/WordPress/blob/aac1b7c487c9a5fd206f6845e4eba4164b02f02b/wp-includes/error-protection.php#L48
157	$constants = get_defined_constants( true );
158	$constants = $constants['Core'] ?? $constants['internal'];
159
160	foreach ( $constants as $constant => $value ) {
161	if ( 0 === strpos( $constant, 'E_' ) && $error_type === $value ) {
162	return $constant;
163	}
164	}
165
166	return '';
167	}
168
169	/**
170	* メール本文取得
171	*
172	* @param array{ type: int , message: string, file: string, line: int } $error
173	*
174	* @return string
175	*/
176	private function get_body( array $error ): string {
177	$date = $this->get_date();
178	$time = $this->get_time();
179
180	$text = "$date $time にサーバーエラーが発生しました。" . PHP_EOL;
181	$text .= PHP_EOL;
182	$text .= '【サーバーエラー�
183	報】' . PHP_EOL;
184	$text .= PHP_EOL;
185	$text .= "・エラータイプ：{$error['type']}" . PHP_EOL;
186	$text .= PHP_EOL;
187	$text .= "・エラーメッセージ：{$error['message']}" . PHP_EOL;
188	$text .= PHP_EOL;
189	$text .= "・エラー箇所：{$error['file']}:{$error['line']}" . PHP_EOL;
190	$text .= PHP_EOL;
191	$text .= '--' . PHP_EOL;
192	$text .= 'CloudSecure WP Security' . PHP_EOL;
193
194	return $text;
195	}
196
197	/**
198	* 通知
199	*/
200	public function notification( $args, $error ) {
201
202	$error['type'] = $this->get_error_type_name( $error['type'] );
203
204	$this->insert_error( $error );
205
206	$enable_email_server_error_notification = get_option( 'cloudsecurewp_enable_email_server_error_notification', 't' );
207	if ( 't' === $enable_email_server_error_notification ) {
208	$option_name = "cloudsecurewp_error_type_{$error['type']}_email_last_sent";
209	$last_sent = get_option( $option_name );
210	if ( ! $last_sent \|\| time() > $last_sent + HOUR_IN_SECONDS ) {
211	update_option( $option_name, time() );
212	$to = get_option( 'admin_email' );
213	$this->wp_send_mail( $to, esc_html( 'サーバーエラー通知' ), $this->get_body( $error ) );
214	}
215	}
216
217	return $args;
218	}
219
220	/**
221	* 有効化
222	*
223	* @return void
224	*/
225	public function activate(): void {
226	$this->save_settings( $this->get_default() );
227
228	global $wpdb;
229	$table_name = $this->get_table_name();
230	$table = $wpdb->get_var( $wpdb->prepare( 'SHOW TABLES LIKE %s', $wpdb->esc_like( $table_name ) ) );
231	$charset_collate = $wpdb->get_charset_collate();
232
233	if ( ! is_null( $table ) ) {
234	$sql = "ALTER TABLE {$table_name} ALTER message DROP DEFAULT";
235	$sql2 = "ALTER TABLE {$table_name} ALTER file DROP DEFAULT";
236	$wpdb->query( $sql );
237	$wpdb->query( $sql2 );
238
239	} else {
240	$sql = "CREATE TABLE {$table_name} (
241	id BIGINT( 20 ) UNSIGNED NOT NULL AUTO_INCREMENT,
242	type VARCHAR( 31 ) NOT NULL DEFAULT 0,
243	message VARCHAR( 65535 ) NOT NULL,
244	file VARCHAR( 65535 ) NOT NULL,
245	line INT NOT NULL DEFAULT 0,
246	created_at DATETIME,
247	UNIQUE KEY id ( id )
248	) {$charset_collate}";
249
250	$wpdb->query( $sql );
251	}
252	}
253
254	/**
255	* 無効化
256	*
257	* @return void
258	*/
259	public function deactivate(): void {
260	$this->config->set( $this->get_feature_key(), 'f' );
261	$this->config->save();
262	}
263	}
264