← All changes | src/component/class-fake-bot-detection.php +16 -113 6.2.2 → 6.3.0 View file →

		@@ -7,14 +7,15 @@
7	7
8	8	namespace WP_Defender\Component;
9	9
10	10	use WP_Defender\Component;
	11	+use WP_Defender\Traits\Country;
	12	+use WP_Defender\Model\Lockout_Ip;
	13	+use WP_Defender\Model\Lockout_Log;
11	14	use WP_Defender\Controller\Firewall;
12		-use WP_Defender\Model\Lockout_Log;
13	15	use WP_Defender\Model\Setting\User_Agent_Lockout;
14		-use WP_Defender\Model\Lockout_Ip;
	16	+use WP_Defender\Component\Known_Bots\Bots\Facebook_Bot;
15	17	use WP_Defender\Model\Notification\Firewall_Notification;
16		-use WP_Defender\Traits\Country;
17	18
18	19	/**
19	20	* Class Fake_Bot_Detection
20	21	*
		@@ -78,13 +79,9 @@
78	79	* API endpoints to query for IP info.
79	80	*
80	81	* @var string[]
81	82	*/
82		- public const IP_INFO_SERVICES = array(
83		- 'https://ipinfo.io/%s/json',
84		- 'https://ipwho.is/%s',
85		- 'http://ip-api.com/json/%s',
86		- );
	83	+ public const IP_INFO_SERVICES = Facebook_Bot::IP_INFO_SERVICES;
87	84
88	85	/**
89	86	* Prefix for site transient cache keys.
90	87	*
		@@ -89,15 +86,15 @@
89	86	* Prefix for site transient cache keys.
90	87	*
91	88	* @var string
92	89	*/
93		- public const FB_CACHE_KEY_PREFIX = 'wpdef_ip_is_fb_';
	90	+ public const FB_CACHE_KEY_PREFIX = Facebook_Bot::FB_CACHE_KEY_PREFIX;
94	91
95	92	/**
96	93	* Cache lifetimes.
97	94	*/
98		- public const FB_CACHE_TTL_CONFIRMED = WEEK_IN_SECONDS;
99		- public const FB_CACHE_TTL_UNCONFIRMED = HOUR_IN_SECONDS;
	95	+ public const FB_CACHE_TTL_CONFIRMED = Facebook_Bot::FB_CACHE_TTL_CONFIRMED;
	96	+ public const FB_CACHE_TTL_UNCONFIRMED = Facebook_Bot::FB_CACHE_TTL_UNCONFIRMED;
100	97
101	98	/**
102	99	* Fake_Bot_Detection constructor.
103	100	*
		@@ -137,12 +134,8 @@
137	134	if ( array() === $ips || '' === $agent ) {
138	135	return;
139	136	}
140	137
141		- if ( false !== stripos( $agent, 'facebook' ) && false !== stripos( $agent, 'twitter' ) ) {
142		- return;
143		- }
144		-
145	138	foreach ( $this->crawlers as $name => $data ) {
146	139	// 1. User-Agent check.
147	140	if ( ! $this->match_user_agent( $agent, $data['user_agents'] ?? array() ) ) {
148	141	continue;
		@@ -160,15 +153,10 @@
160	153	return;
161	154	}
162	155
163	156	// Facebook specific IP verification.
164		- if ( 'facebook' === strtolower( $name ) ) {
165		- if ( $this->is_facebook_ip( $ip ) ) {
166		- return; // Confirmed legit Facebook bot.
167		- }
168		-
169		- $this->block_ip( $ip, $agent, $name );
170		- return;
	157	+ if ( 'facebook' === strtolower( $name ) && $this->is_facebook_ip( $ip ) ) {
	158	+ return; // Confirmed legit Facebook bot.
171	159	}
172	160
173	161	// 3. Reverse DNS lookup.
174	162	$hostname = gethostbyaddr( $ip );
		@@ -189,9 +177,11 @@
189	177	return; // Verified by forward + reverse DNS.
190	178	}
191	179	}
192	180
193		- $this->block_ip( $ip, $agent, $name );
	181	+ if ( isset( $ip ) ) {
	182	+ $this->block_ip( $ip, $agent, $name );
	183	+ }
194	184	return; // UA matched, but DNS validation failed.
195	185	}
196	186	}
197	187
		@@ -300,22 +290,10 @@
300	290	* @param string $scenario The scenario under which the event is logged.
301	291	* @param string $bot_name The name of the bot being impersonated.
302	292	*/
303	293	public function log_event( $ip, $scenario, $bot_name ) {
304		- $model = new Lockout_Log();
305		- $model->ip = $ip;
306		- $user_agent = defender_get_data_from_request( 'HTTP_USER_AGENT', 's' );
307		- $model->user_agent = isset( $user_agent ) ? User_Agent::fast_cleaning( $user_agent ) : null;
308		- $model->date = time();
309		- $model->tried = $user_agent;
310		- $model->blog_id = get_current_blog_id();
	294	+ $model = Lockout_Log::create( $ip );
311	295
312		- $ip_to_country = $this->ip_to_country( $ip );
313		-
314		- if ( isset( $ip_to_country['iso'] ) ) {
315		- $model->country_iso_code = $ip_to_country['iso'];
316		- }
317		-
318	296	switch ( $scenario ) {
319	297	case self::SCENARIO_FAKE_BOT:
320	298	default:
321	299	$model->type = Lockout_Log::LOCKOUT_FAKE_BOT;
		@@ -350,63 +328,9 @@
350	328	* @param string $ip IPv4 or IPv6 address.
351	329	* @return bool True if owned by Facebook, false otherwise.
352	330	*/
353	331	public function is_facebook_ip( string $ip ): bool {
354		- if ( ! filter_var( $ip, FILTER_VALIDATE_IP ) ) {
355		- return false;
356		- }
357		-
358		- $cache_key = self::FB_CACHE_KEY_PREFIX . md5( $ip );
359		-
360		- $cached = get_site_transient( $cache_key );
361		- if ( false !== $cached ) {
362		- return (bool) $cached;
363		- }
364		-
365		- $is_fb = false;
366		-
367		- // Fetch from APIs.
368		- foreach ( self::IP_INFO_SERVICES as $endpoint ) {
369		- $url = sprintf( $endpoint, $ip );
370		-
371		- $response = wp_remote_get(
372		- $url,
373		- array(
374		- 'timeout' => 3,
375		- 'headers' => array( 'Accept' => 'application/json' ),
376		- )
377		- );
378		-
379		- if ( is_wp_error( $response ) ) {
380		- continue;
381		- }
382		-
383		- $body = wp_remote_retrieve_body( $response );
384		- $data = json_decode( $body, true );
385		-
386		- if ( ! is_array( $data ) ) {
387		- continue;
388		- }
389		-
390		- $org = $data['org'] ?? $data['connection']['org'] ?? null;
391		- $isp = $data['isp'] ?? $data['connection']['isp'] ?? null;
392		-
393		- if (
394		- preg_match( '/facebook|meta/i', $org ?? '' ) ||
395		- preg_match( '/facebook|meta/i', $isp ?? '' )
396		- ) {
397		- $is_fb = true;
398		- break;
399		- }
400		- }
401		-
402		- set_site_transient(
403		- $cache_key,
404		- $is_fb ? 1 : 0,
405		- $is_fb ? self::FB_CACHE_TTL_CONFIRMED : self::FB_CACHE_TTL_UNCONFIRMED
406		- );
407		-
408		- return $is_fb;
	332	+ return ( new Facebook_Bot() )->is_ip( $ip );
409	333	}
410	334
411	335	/**
412	336	* Clear all Facebook IP check transients.
		@@ -411,28 +335,7 @@
411	335	/**
412	336	* Clear all Facebook IP check transients.
413	337	*/
414	338	public function clear_fb_transients(): void {
415		- global $wpdb;
416		-
417		- $cache_key = self::FB_CACHE_KEY_PREFIX;
418		- $like_pattern = "_site_transient_{$cache_key}_%";
419		- $timeout_pattern = "_site_transient_timeout_{$cache_key}_%";
420		-
421		- if ( is_multisite() ) {
422		- $table = $wpdb->sitemeta;
423		- $key_column = 'meta_key';
424		- } else {
425		- $table = $wpdb->options;
426		- $key_column = 'option_name';
427		- }
428		-
429		- // Delete Facebook IP check transients.
430		- $wpdb->query( // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
431		- $wpdb->prepare(
432		- "DELETE FROM {$table} WHERE {$key_column} LIKE %s OR {$key_column} LIKE %s", // phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared
433		- $like_pattern,
434		- $timeout_pattern
435		- )
436		- );
	339	+ ( new Facebook_Bot() )->clear_fb_transients();
437	340	}
438	341	}