....................................../////.===Shadow-Here===./////................................................ > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < ------------------------------------------------------------------------------------------------------------------- /////////////////////////////////////////////////////////////////////////////////////////////////////////////////// RIFF¤ WEBPVP8 ˜ ðÑ *ôô>‘HŸK¥¤"§£±¨àð enü¹%½_F‘åè¿2ºQú³íªú`N¿­3ÿƒügµJžaÿ¯ÿ°~¼ÎùnúîÞÖô•òíôÁÉß®Sm¥Ü/ ‡ó˜f£Ùà<˜„xëJ¢Ù€SO3x<ªÔ©4¿+ç¶A`q@Ì“Úñè™ÍÿJÌ´ª-˜ÆtÊÛL]Ïq*‘Ý”ì#ŸÌÏãY]@ê`¿ /ªfkØB4·®£ó z—Üw¥Pxù–ÞLШKÇN¾AkÙTf½è'‰g gÆv›Øuh~ a˜Z— ïj*á¥t d£“uÒ ¨`K˜¹ßþ]b>˜]_ÏÔ6W—è2r4x•íÖ…"ƒÖNîä!¦å Ú}ýxGøÌ —@ ;ÆÚŠ=ɾ1ý8lªË¥ô ^yf®Œ¢u&2©nÙÇ›ñÂñŒ³ aPo['½»øFùà­+4ê“$!lövlüÞ=;N®3ð‚õ›DÉKòÞ>ÄÍ ¥ˆuߤ#ˆ$6ù™¥îŠ‡y’ÍB¼ çxÛ;X"WL£R÷͝*ó-¶Zu}º.s¸sšXqù–DþÿvªhüïwyŸ ¯é³lÀ:KCûÄ£Ëá\…­ ~—ýóî ¼ûûÜTÓüÇy…ŽÆvc»¾×U ñ¸žþоP÷¦ó:Ò¨¨5;Ð#&#ÖúñläÿÁœ GxÉ­/ñ‡áQðìYÉtÒwŽ¼GÔ´zàÒò ð*ëzƒ•4~H]Ø‹f ñÓÈñ`NåWçs'ÆÏW^ø¹!XžµmQ5ÃËoLœÎ: ÞËÍ¥J ù…î èo£ßPÎñ¶ž8.Œ]ʵ~5›ÙË-ù*8ÙÖß±~ ©¹rÓê‚j¶d¸{^Q'˜±Crß ÚH—#¥¥QlÀ×ëã‡DÜ«èî þ&Çæžî;ŽÏºò6ÒLÃXy&ZŒ'j‚¢Ù€IßÚù+–MGi‰*jE€‘JcÜ ÓÌ EÏÚj]o˜ Þr <¾U ûŪæÍ/šÝH¥˜b”¼ ÁñßX GP›ï2›4WŠÏà×£…íÓk†¦H·ÅíMh–*nó÷à]ÁjCº€b7<ب‹¨5車bp2:Á[UªM„QŒçiNMa#<5›áËó¸HýÊ"…×Éw¹¦ì2º–x<›»a±¸3Weü®FÝ⑱ö–î–³|LPÈ~çð~Çå‡|º kD¢µÏàÆAI %1À% ¹Ò – ”ϝS¦‰4&¶£°à Öý”û_Ò Áw°A«Å€?mÇÛgHÉ/8)á¾ÛìáöŽP í¨PŸNÙµº¦‡§Ùš"ÿ«>+ªÕ`Ê÷‡‚ß Õû˜þãÇ-PÍ.¾XV‘€ dÜ"þ4¹ ±Oú‘©t¥¦FªÄÃÄ•b‚znýu½—#cDs˜ÃiÑOˆñ×QO=*IAÊ,¶ŽZƒ;‡wøXè%EÐk:F±Ú” .Ѽ+Áu&Ç`."pÈÉw o&¿dE6‘’EqTuK@Ì¥ã™À(Êk(h‰,H}RÀIXÛš3µ1©_OqÚÒJAñ$ÊÙÜ;D3çŒ[þùœh¬Ã³™ö6ç†NY".Ú‰ï[ªŸŒ '²Ð öø_¨ÂÉ9u鶳ÒŠõTàîMØ#û¯gN‡bÙ놚X„ö …ÉeüÌ^J ‹€.œ$Æ)βÄeæW#óüßĺŸ€ ÀzwV 9oä»f4V*uB «Ë†¹ì¯žR霓æHXa=&“I4K;¯ç‹h×·"UŠ~<•â•ªVêª&ÍSÃÆÅ?ÔqÎ*mTM ˜›µwêd#[C¡©§‘D<©àb†–ÁœøvH/,í:¯( ²£|4-„Æövv„Yͼ™^Á$ˆ„¢Û[6yB.åH*V¨æ?$=˜Ñ€•î¦ñ·­(VlŸ‘ nÀt8W÷´Bûba?q9ú¶Xƒl«ÿ\ù¶’þòUÐj/õ¢Ìµ³g$ƒÎR!¸»|Oߍë’BhîÚÑ¢ñåŒJ„®„£2Ð3•ô02Nt…!£Í]Ïc½Qÿ?ˆ<&ÃA¾Ú,JˆijÌ#5yz„‰Î|ÊŽ5QÏ:‹ÐaóVÔxW—CpeÏzÐïíçôÿÅ_[hãsÐ_/ŽTÝ?BîˆííV$<¿i>²F¬_Eß¿ †bÊŒº­ÿ®Z H“C}”¬,Mp ý/Bá£w>˜YV°aƒúh+cŠ- r/[%|üUMHäQ°X»|û/@|°¥Ð !BÔ Ç¢Ä©š+Õì D«7ìN¶ŽðÔ " ƶ’ÖçtA‰Û×}{tþz­¾GÍ›k¹OEJR$ Â׃ «ëÁ"oÉôž$oUK(Ä)Ãz³Ê-‹êN[Ò3Œñbï8P 4ƒ×q¢bo|?<ÛX¬òÄÍ°L–±›(™ûG?ýË©ÚÄ–ÂDØÐ_Ç¡ô ¾–ÄÏø ×e8Ë©$ÄF¹Å‹ì[©óìl:F¾f´‹‹Xì²ï®\¬ôùƒ ÿat¥óèÒùHß0äe‚;ü×h:ÆWðHž=Ã8骣"kœ'Y?³}Tûè€>?0l›e1Lòñ„aæKÆw…hÖŠùW…ÈÆÄ0ši·›[pcwËþñiêíY/~-Á5˜!¿†A›™Mÿþ(±“t@â“ö2­´TG5yé]çå僳 .·ÍïçÝ7UÚ±Ð/Nè»,_Ï ùdj7\ï Wì4›„»c¸àešg#ÒÊ⥭áØo5‘?ÌdÝô¯ ¹kzsƒ=´#ëÉK›Ø´±-¥eW?‡çßtòTã…$Ý+qÿ±ƒ÷_3Ô¥í÷:æ–ž<·Ö‡‰Å¢ š‡%Ô—utÌÈìðžgÖÀz²À—ï÷Óîäõ{K'´È÷³yaÏÁjƒô}ž§®æÊydÕÈë5¯èˆõvÕ©ã*çD„ “z„Ó‡^^xÂ3M§A´JG‚öï 3W'ˆ.OvXè¡ÊÕª?5º7†˜(˜Ç¶#çê’¶!ÌdZK§æ 0fãaN]òY³RV ™î$®K2R¨`W!1Ôó\;Ý ýB%qæK•&ÓÈe9È0êI±žeŸß -ú@žQr¦ ö4»M¼Áè¹µmw 9 EÆE_°2ó„ŸXKWÁ×Hóì^´²GѝF©óäR†¦‰ç"V»eØ<3ùd3ÿÚ¤Žú“Gi" —‘_ÙËÎ~Üö¯¥½Î»üŸEÚŽåmÞþí ;ÞólËΦMzA"Âf(´òá;Éï(/7½ûñÌ­cïÕçлþÝz¾-ÍvÑ“pH­–ðÓj$¸Äû¤‚‘ãUBË-n“2åPkS5&‹Â|+g^œ®Ì͆d!OïäîU«c;{Û!ÅŽ«ëZ9Ókóˆ]¯ƒ›né `ÇÒ+tÆš (ØKá¾—=3œ®•vuMñg²\ï Ec€ 05±d™‡×iÇ×›UúvÌ¢£Èþ¡ÕØô¶ßÎA"ß±#Ö²ˆÊŸ¦*Ä~ij|àø.-¼'»Ú¥£h ofº¦‡VsR=N½„Î v˜Z*SÌ{=jÑB‹tê…;’HžH¯8–îDù8ñ¢|Q•bÛçš–‹m³“ê¨ åÏ^m¬Žãþ©ïêO‡½6] µÆ„Ooòü ²x}N¦Ë3ïé¿»€›HA˜m%çÞ/¿í7Fø“‹léUk)É°Œµ8Q8›:ÀŠeT*šõ~ôڝG6 ¢}`ùH­–”¡k ‰P1>š†®9z11!X wKfmÁ¦xÑ,N1Q”–æB¶M…ÒÃv6SMˆhU¬ÊPŽï‘öj=·CŒ¯u¹ƒVIЃsx4’ömÛýc塶7ßŠß 57^\wÒÐÆ k§h,Œý î«q^R½3]J¸ÇðN ‚çU¬ôº^Áì} ³f©Õœ§ˆã:FÄÈ‚é(€™?àýÓüè1Gô£¼éj‚OÅñ  #>×—ßtà 0G¥Åa뀐kßhc™À_ÉñÞ#±)GD" YîäË-ÿÙ̪ ¹™a¯´¢E\ÝÒö‚;™„ë]_ p8‰o¡ñ+^÷ 3‘'dT4œŽ ðVë½° :¬víÑ«£tßÚS-3¶“þ2 †üüʨòrš¹M{É_¤`Û¨0ìjœøJ‡:÷ÃáZ˜†@GP&œÑDGÏs¡þ¦þDGú‘1Yá9Ôþ¼ ûø…§÷8&–ÜÑnÄ_m®^üÆ`;ÉVÁJ£?â€-ßê}suÍ2sõA NÌúA磸‘îÿÚ»ƒìö·á¿±tÑÐ"Tÿü˜[@/äj¬€uüªìù¥Ý˜á8Ý´sõj 8@rˆð äþZÇD®ÿUÏ2ùôõrBzÆÏÞž>Ì™xœ“ wiÎ×7_… ¸ \#€MɁV¶¥üÕÿPÔ9Z‡ø§É8#H:ƒ5ÀÝå9ÍIŒ5åKÙŠ÷qÄ>1AÈøžj"µÂд/ªnÀ qªã}"iŸBå˜ÓÛŽ¦…&ݧ;G@—³b¯“•"´4í¨ôM¨åñC‹ïùÉó¯ÓsSH2Ý@ßáM‡ˆKÀªÛUeø/4\gnm¥‹ŸŒ qÄ b9ÞwÒNÏ_4Ég³ú=܆‚´ •â¥õeíþkjz>éÚyU«Íӝ݃6"8/ø{=Ô¢»G¥ äUw°W«,ô—¿ãㆅү¢³xŠUû™yŒ (øSópÐ 9\åTâ»—*oG$/×ÍT†Y¿1¤Þ¢_‡ ¼ „±ÍçèSaÓ 3ÛMÁBkxs‰’R/¡¤ˆÙçª(*õ„üXÌ´ƒ E§´¬EF"Ù”R/ÐNyÆÂ^°?™6¡œïJ·±$§?º>ÖüœcNÌù¯G ‹ñ2ŠBB„^·úìaz¨k:#¨Æ¨8LÎõލ£^§S&cŒÐU€ü(‡F±Š¼&P>8ÙÁ ‰ p5?0ÊƃZl¸aô š¼¡}gÿ¶zÆC²¹¬ÎÖG*HB¡O<º2#ñŒAƒ–¡B˜´É$¥›É:FÀÔx¾u?XÜÏÓvN©RS{2ʈãk9rmP¼Qq̳ è¼ÐFׄ^¡Öì fE“F4A…!ì/…¦Lƒ… … $%´¾yã@CI¬ á—3PþBÏNÿ<ý°4Ü ËÃ#ØÍ~âW«rEñw‹eùMMHß²`¬Öó½íf³:‹k˜¯÷}Z!ã¿<¥,\#öµÀ¯aÒNÆIé,Ћ–lŽ#Àæ9ÀÒS·I’½-Ïp Äz¤Š Â* ­íÄ9­< h>׍3ZkËU¹§˜ŒŠ±f­’¤º³Q ÏB?‹#µíÃ¥®@(Gs«†vI¥Mµ‹Á©e~2ú³ÁP4ìÕi‚²Ê^ö@-DþÓàlÜOÍ]n"µã:žpsŽ¢:! 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Current File : /home/ailwtbdh/www/wp-content/plugins/litespeed-cache/src/data.cls.php
<?php
/**
 * LiteSpeed persistent data manager.
 *
 * Handles DB tables, schema upgrades, URL-to-file mappings, and list loaders.
 *
 * @package LiteSpeed
 * @since   1.3.1
 */

namespace LiteSpeed;

defined( 'WPINC' ) || exit();

/**
 * Data layer for LiteSpeed Cache.
 */
class Data extends Root {

	const LOG_TAG = '🚀';

	/**
	 * Versioned DB updaters for network-wide options.
	 *
	 * @var array<string,array<string>>
	 */
	private $_db_updater = [
		'5.3-a5'    => [ 'litespeed_update_5_3' ],
		'7.0-b26'   => [ 'litespeed_update_7' ],
		'7.0.1-b1'  => [ 'litespeed_update_7_0_1' ],
		'7.7-b28'   => [ 'litespeed_update_7_7' ],
	];

	/**
	 * Versioned DB updaters for per-site options in multisite.
	 *
	 * @var array<string,array<string>>
	 */
	private $_db_site_updater = [
		// '2.0' => [ 'litespeed_update_site_2_0' ],
	];

	/**
	 * Map from URL-file type to integer code.
	 *
	 * @var array<string,int>
	 */
	private $_url_file_types = [
		'css'  => 1,
		'js'   => 2,
		'ccss' => 3,
		'ucss' => 4,
	];

	/** Table: image optimization results. */
	const TB_IMG_OPTM = 'litespeed_img_optm';
	/** Table: image optimization working queue. */
	const TB_IMG_OPTMING = 'litespeed_img_optming';
	/** Table: cached avatars. */
	const TB_AVATAR = 'litespeed_avatar';
	/** Table: crawler URLs. */
	const TB_CRAWLER = 'litespeed_crawler';
	/** Table: crawler blacklist. */
	const TB_CRAWLER_BLACKLIST = 'litespeed_crawler_blacklist';
	/** Table: logical URLs. */
	const TB_URL = 'litespeed_url';
	/** Table: URL → generated file mapping. */
	const TB_URL_FILE = 'litespeed_url_file';

	/**
	 * Constructor.
	 *
	 * @since 1.3.1
	 */
	public function __construct() {}

	/**
	 * Ensure required tables exist based on current configuration.
	 *
	 * Called on activation and when options are (re)loaded.
	 *
	 * @since 3.0
	 * @access public
	 * @return void
	 */
	public function correct_tb_existence() {
		// Gravatar.
		if ( $this->conf( Base::O_DISCUSS_AVATAR_CACHE ) ) {
			$this->tb_create( 'avatar' );
		}

		// Crawler.
		if ( $this->conf( Base::O_CRAWLER ) ) {
			$this->tb_create( 'crawler' );
			$this->tb_create( 'crawler_blacklist' );
		}

		// URL mapping.
		$this->tb_create( 'url' );
		$this->tb_create( 'url_file' );

		// Image optm tables are managed on-demand.
	}

	/**
	 * Upgrade global configuration/data to match plugin version.
	 *
	 * @since 3.0
	 * @access public
	 *
	 * @param string $ver Currently stored version string.
	 * @return string|void 'upgrade' on success, or void if no-op.
	 */
	public function conf_upgrade( $ver ) {
		// Skip count check if `Use Primary Site Configurations` is on (deprecated note kept intentionally).

		if ( $this->_get_upgrade_lock() ) {
			return;
		}

		$this->_set_upgrade_lock( true );

		require_once LSCWP_DIR . 'src/data.upgrade.func.php';

		// Init log manually.
		if ( $this->conf( Base::O_DEBUG ) ) {
			$this->cls( 'Debug2' )->init();
		}

		foreach ( $this->_db_updater as $k => $v ) {
			if ( version_compare( $ver, $k, '<' ) ) {
				foreach ( $v as $v2 ) {
					self::debug( "Updating [ori_v] $ver \t[to] $k \t[func] $v2" );
					call_user_func( $v2 );
				}
			}
		}

		// Reload options.
		$this->cls( 'Conf' )->load_options();

		$this->correct_tb_existence();

		// Update related files.
		$this->cls( 'Activation' )->update_files();

		// Update version to latest.
		Conf::delete_option( Base::_VER );
		Conf::add_option( Base::_VER, Core::VER );

		self::debug( 'Updated version to ' . Core::VER );

		$this->_set_upgrade_lock( false );

		if ( ! defined( 'LSWCP_EMPTYCACHE' ) ) {
			define( 'LSWCP_EMPTYCACHE', true );
		}
		Purge::purge_all();

		return 'upgrade';
	}

	/**
	 * Upgrade per-site configuration/data to match plugin version (multisite).
	 *
	 * @since 3.0
	 * @access public
	 *
	 * @param string $ver Currently stored version string.
	 * @return void
	 */
	public function conf_site_upgrade( $ver ) {
		if ( $this->_get_upgrade_lock() ) {
			return;
		}

		$this->_set_upgrade_lock( true );

		require_once LSCWP_DIR . 'src/data.upgrade.func.php';

		foreach ( $this->_db_site_updater as $k => $v ) {
			if ( version_compare( $ver, $k, '<' ) ) {
				foreach ( $v as $v2 ) {
					self::debug( "Updating site [ori_v] $ver \t[to] $k \t[func] $v2" );
					call_user_func( $v2 );
				}
			}
		}

		// Reload options.
		$this->cls( 'Conf' )->load_site_options();

		Conf::delete_site_option( Base::_VER );
		Conf::add_site_option( Base::_VER, Core::VER );

		self::debug( 'Updated site_version to ' . Core::VER );

		$this->_set_upgrade_lock( false );

		if ( ! defined( 'LSWCP_EMPTYCACHE' ) ) {
			define( 'LSWCP_EMPTYCACHE', true );
		}
		Purge::purge_all();
	}

	/**
	 * Whether an upgrade lock is in effect.
	 *
	 * @since 3.0.1
	 * @return int|false Timestamp if locked and recent, false otherwise.
	 */
	private function _get_upgrade_lock() {
		$is_upgrading = (int) get_option( 'litespeed.data.upgrading' );
		if ( ! $is_upgrading ) {
			$this->_set_upgrade_lock( false ); // Seed option to avoid repeated DB reads later.
		}
		if ( $is_upgrading && ( time() - $is_upgrading ) < 3600 ) {
			return $is_upgrading;
		}

		return false;
	}

	/**
	 * Show the upgrading banner if upgrade script is running.
	 *
	 * @since 3.0.1
	 * @return void
	 */
	public function check_upgrading_msg() {
		$is_upgrading = $this->_get_upgrade_lock();
		if ( ! $is_upgrading ) {
			return;
		}

		Admin_Display::info(
			sprintf(
				/* translators: %s: time string */
				__( 'The database has been upgrading in the background since %s. This message will disappear once upgrade is complete.', 'litespeed-cache' ),
				'<code>' . Utility::readable_time( $is_upgrading ) . '</code>'
			) . ' [LiteSpeed]',
			true
		);
	}

	/**
	 * Set/clear the upgrade process lock.
	 *
	 * @since 3.0.1
	 *
	 * @param bool $lock True to set, false to clear.
	 * @return void
	 */
	private function _set_upgrade_lock( $lock ) {
		if ( ! $lock ) {
			update_option( 'litespeed.data.upgrading', -1 );
		} else {
			update_option( 'litespeed.data.upgrading', time() );
		}
	}

	/**
	 * Get a fully-qualified table name by slug.
	 *
	 * @since 3.0
	 * @access public
	 *
	 * @param string $tb Table slug (e.g., 'url_file').
	 * @return string|null
	 */
	public function tb( $tb ) {
		global $wpdb;

		switch ( $tb ) {
			case 'img_optm':
				return $wpdb->prefix . self::TB_IMG_OPTM;

			case 'img_optming':
				return $wpdb->prefix . self::TB_IMG_OPTMING;

			case 'avatar':
				return $wpdb->prefix . self::TB_AVATAR;

			case 'crawler':
				return $wpdb->prefix . self::TB_CRAWLER;

			case 'crawler_blacklist':
				return $wpdb->prefix . self::TB_CRAWLER_BLACKLIST;

			case 'url':
				return $wpdb->prefix . self::TB_URL;

			case 'url_file':
				return $wpdb->prefix . self::TB_URL_FILE;

			default:
				return null;
		}
	}

	/**
	 * Check if a table exists.
	 *
	 * @since 3.0
	 * @access public
	 *
	 * @param string $tb Table slug.
	 * @return bool
	 */
	public function tb_exist( $tb ) {
		global $wpdb;

		$save_state = $wpdb->suppress_errors;
		$wpdb->suppress_errors( true );
		$describe = $wpdb->get_var( 'DESCRIBE `' . $this->tb( $tb ) . '`' ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.PreparedSQL.NotPrepared
		$wpdb->suppress_errors( $save_state );

		return null !== $describe;
	}

	/**
	 * Get the SQL structure (columns/indexes) for a given table slug.
	 *
	 * @since 2.0
	 * @access private
	 *
	 * @param string $tb Table slug.
	 * @return string SQL columns/indexes definition.
	 */
	private function _tb_structure( $tb ) {
		return File::read( LSCWP_DIR . 'src/data_structure/' . $tb . '.sql' );
	}

	/**
	 * Create a table by slug if it doesn't exist.
	 *
	 * @since 3.0
	 * @access public
	 *
	 * @param string $tb Table slug.
	 * @return void
	 */
	public function tb_create( $tb ) {
		global $wpdb;

		self::debug2( '[Data] Checking table ' . $tb );

		// Check if table exists first.
		if ( $this->tb_exist( $tb ) ) {
			self::debug2( '[Data] Existed' );
			return;
		}

		self::debug( 'Creating ' . $tb );

		$sql = sprintf(
			'CREATE TABLE IF NOT EXISTS `%1$s` (%2$s) %3$s;',
			$this->tb( $tb ),
			$this->_tb_structure( $tb ),
			$wpdb->get_charset_collate()
		);
		$res = $wpdb->query( $sql ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.PreparedSQL.NotPrepared
		if ( false === $res ) {
			self::debug( 'Warning! Creating table failed!', $sql );
			Admin_Display::error( Error::msg( 'failed_tb_creation', [ '<code>' . $tb . '</code>', '<code>' . $sql . '</code>' ] ) );
		}
	}

	/**
	 * Drop a table by slug.
	 *
	 * @since 3.0
	 * @access public
	 *
	 * @param string $tb Table slug.
	 * @return void
	 */
	public function tb_del( $tb ) {
		global $wpdb;

		if ( ! $this->tb_exist( $tb ) ) {
			return;
		}

		self::debug( 'Deleting table ' . $tb );

		$q = 'DROP TABLE IF EXISTS ' . $this->tb( $tb );
		$wpdb->query( $q ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.PreparedSQL.NotPrepared
	}

	/**
	 * Drop all generated tables (except image optimization working tables).
	 *
	 * @since 3.0
	 * @access public
	 * @return void
	 */
	public function tables_del() {
		$this->tb_del( 'avatar' );
		$this->tb_del( 'crawler' );
		$this->tb_del( 'crawler_blacklist' );
		$this->tb_del( 'url' );
		$this->tb_del( 'url_file' );

		// Deleting img_optm only can be done when destroy all optm images
	}

	/**
	 * TRUNCATE a table by slug.
	 *
	 * @since 4.0
	 * @access public
	 *
	 * @param string $tb Table slug.
	 * @return void
	 */
	public function table_truncate( $tb ) {
		global $wpdb;
		$q = 'TRUNCATE TABLE ' . $this->tb( $tb );
		$wpdb->query( $q ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.PreparedSQL.NotPrepared
	}

	/**
	 * Clean URL-file rows for a given file type and prune orphaned URLs.
	 *
	 * @since 4.0
	 * @access public
	 *
	 * @param string $file_type One of 'css','js','ccss','ucss'.
	 * @return void
	 */
	public function url_file_clean( $file_type ) {
		global $wpdb;

		if ( ! $this->tb_exist( 'url_file' ) ) {
			return;
		}

		if ( ! isset( $this->_url_file_types[ $file_type ] ) ) {
			return;
		}

		$type        = $this->_url_file_types[ $file_type ];
		$tb_url      = $this->tb( 'url' );
		$tb_url_file = $this->tb( 'url_file' );

		// Delete all of this type.
		$q = "DELETE FROM `$tb_url_file` WHERE `type` = %d";
		$wpdb->query( $wpdb->prepare( $q, $type ) ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.PreparedSQL.NotPrepared

		// Prune orphaned rows in URL table.
		$sql = "DELETE d
				FROM `{$tb_url}` AS d
				LEFT JOIN `{$tb_url_file}` AS f ON d.`id` = f.`url_id`
				WHERE f.`url_id` IS NULL";
		$wpdb->query( $sql ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.PreparedSQL.NotPrepared
	}

	/**
	 * Persist (or rotate) the mapping from URL+vary to a generated file.
	 *
	 * @since 4.0
	 * @access public
	 *
	 * @param string $request_url  Full request URL.
	 * @param string $vary         Vary string (may be long; will be md5 if >32).
	 * @param string $file_type    One of 'css','js','ccss','ucss'.
	 * @param string $filecon_md5  MD5 of the generated file content.
	 * @param string $path         Base path where files live.
	 * @param bool   $mobile       Whether mapping is for mobile.
	 * @param bool   $webp         Whether mapping is for webp.
	 * @return void
	 */
	public function save_url( $request_url, $vary, $file_type, $filecon_md5, $path, $mobile = false, $webp = false ) {
		global $wpdb;

		if ( strlen( $vary ) > 32 ) {
			$vary = md5( $vary );
		}

		if ( ! isset( $this->_url_file_types[ $file_type ] ) ) {
			return;
		}

		$type = $this->_url_file_types[ $file_type ];

		$tb_url      = $this->tb( 'url' );
		$tb_url_file = $this->tb( 'url_file' );

		// Ensure URL row exists.
		$q       = "SELECT * FROM `$tb_url` WHERE url=%s";
		$url_row = $wpdb->get_row( $wpdb->prepare( $q, $request_url ), ARRAY_A ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.PreparedSQL.NotPrepared
		if ( ! $url_row ) {
			$q = "INSERT INTO `$tb_url` SET url=%s";
			$wpdb->query( $wpdb->prepare( $q, $request_url ) ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.PreparedSQL.NotPrepared
			$url_id = (int) $wpdb->insert_id;
		} else {
			$url_id = (int) $url_row['id'];
		}

		// Active mapping (not expired).
		$q        = "SELECT * FROM `$tb_url_file` WHERE url_id=%d AND vary=%s AND type=%d AND expired=0";
		$file_row = $wpdb->get_row( $wpdb->prepare( $q, [ $url_id, $vary, $type ] ), ARRAY_A ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.PreparedSQL.NotPrepared

		// No change needed if filename matches.
		if ( $file_row && $file_row['filename'] === $filecon_md5 ) {
			return;
		}

		// If the new file MD5 is currently marked expired elsewhere, clear those records.
		$q = "DELETE FROM `$tb_url_file` WHERE filename = %s AND expired > 0";
		$wpdb->query( $wpdb->prepare( $q, $filecon_md5 ) ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.PreparedSQL.NotPrepared

		// If another live row already uses the same filename, switch current row to that filename.
		if ( $file_row ) {
			$q         = "SELECT id FROM `$tb_url_file` WHERE filename = %s AND expired = 0 AND id != %d LIMIT 1";
			$exists_id = $wpdb->get_var( $wpdb->prepare( $q, [ $file_row['filename'], (int) $file_row['id'] ] ) ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.PreparedSQL.NotPrepared
			if ( $exists_id ) {
				$q = "UPDATE `$tb_url_file` SET filename=%s WHERE id=%d";
				$wpdb->query( $wpdb->prepare( $q, [ $filecon_md5, (int) $file_row['id'] ] ) ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.PreparedSQL.NotPrepared
				return;
			}
		}

		// Insert a new mapping row.
		$q = "INSERT INTO `$tb_url_file` SET url_id=%d, vary=%s, filename=%s, type=%d, mobile=%d, webp=%d, expired=0";
		$wpdb->query( $wpdb->prepare( $q, [ $url_id, $vary, $filecon_md5, $type, $mobile ? 1 : 0, $webp ? 1 : 0 ] ) ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.PreparedSQL.NotPrepared

		// Mark previous mapping as expiring (to be deleted later).
		if ( $file_row ) {
			$q       = "UPDATE `$tb_url_file` SET expired=%d WHERE id=%d";
			$expired = time() + ( 86400 * apply_filters( 'litespeed_url_file_expired_days', 20 ) );
			$wpdb->query( $wpdb->prepare( $q, [ $expired, (int) $file_row['id'] ] ) ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.PreparedSQL.NotPrepared

			// Delete already-expired files for this URL.
			$q    = "SELECT * FROM `$tb_url_file` WHERE url_id = %d AND expired BETWEEN 1 AND %d";
			$q    = $wpdb->prepare( $q, [ $url_id, time() ] ); // phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared
			$list = $wpdb->get_results( $q, ARRAY_A ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.PreparedSQL.NotPrepared
			if ( $list ) {
				foreach ( $list as $v ) {
					$ext         = 'js' === $file_type ? 'js' : 'css';
					$file_to_del = trailingslashit( $path ) . $v['filename'] . '.' . $ext;
					if ( file_exists( $file_to_del ) ) {
						self::debug( 'Delete expired unused file: ' . $file_to_del );
						wp_delete_file( $file_to_del );
					}
				}
				$q = "DELETE FROM `$tb_url_file` WHERE url_id = %d AND expired BETWEEN 1 AND %d";
				$wpdb->query( $wpdb->prepare( $q, [ $url_id, time() ] ) ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.PreparedSQL.NotPrepared
			}
		}
	}

	/**
	 * Load the stored filename (md5) for a given URL/vary/type, if active.
	 *
	 * @since 4.0
	 * @access public
	 *
	 * @param string $request_url Full request URL or tag.
	 * @param string $vary        Vary string (may be md5 if previously stored).
	 * @param string $file_type   One of 'css','js','ccss','ucss'.
	 * @return string|false Filename md5 (without extension) or false if none.
	 */
	public function load_url_file( $request_url, $vary, $file_type ) {
		global $wpdb;

		if ( strlen( $vary ) > 32 ) {
			$vary = md5( $vary );
		}

		if ( ! isset( $this->_url_file_types[ $file_type ] ) ) {
			return false;
		}
		$type = $this->_url_file_types[ $file_type ];

		self::debug2( 'load url file: ' . $request_url );

		$tb_url  = $this->tb( 'url' );
		$q       = "SELECT * FROM `$tb_url` WHERE url=%s";
		$url_row = $wpdb->get_row( $wpdb->prepare( $q, $request_url ), ARRAY_A ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.PreparedSQL.NotPrepared
		if ( ! $url_row ) {
			return false;
		}

		$url_id      = (int) $url_row['id'];
		$tb_url_file = $this->tb( 'url_file' );
		$q           = "SELECT * FROM `$tb_url_file` WHERE url_id=%d AND vary=%s AND type=%d AND expired=0";
		$file_row    = $wpdb->get_row( $wpdb->prepare( $q, [ $url_id, $vary, $type ] ), ARRAY_A ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.PreparedSQL.NotPrepared
		if ( ! $file_row ) {
			return false;
		}

		return $file_row['filename'];
	}

	/**
	 * Mark all UCSS entries of one URL as expired (optionally return existing rows).
	 *
	 * @since 4.5
	 * @access public
	 *
	 * @param string $request_url Target URL.
	 * @param bool   $auto_q      If true, return existing active rows before expiring.
	 * @return array Existing rows if $auto_q, otherwise empty array.
	 */
	public function mark_as_expired( $request_url, $auto_q = false ) {
		global $wpdb;
		$tb_url = $this->tb( 'url' );

		self::debug( 'Try to mark as expired: ' . $request_url );
		$q       = "SELECT * FROM `$tb_url` WHERE url=%s";
		$url_row = $wpdb->get_row( $wpdb->prepare( $q, $request_url ), ARRAY_A ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.PreparedSQL.NotPrepared
		if ( ! $url_row ) {
			return [];
		}

		self::debug( 'Mark url_id=' . $url_row['id'] . ' as expired' );

		$tb_url_file = $this->tb( 'url_file' );

		$existing_url_files = [];
		if ( $auto_q ) {
			$q                  = "SELECT a.*, b.url FROM `$tb_url_file` a LEFT JOIN `$tb_url` b ON b.id=a.url_id WHERE a.url_id=%d AND a.type=%d AND a.expired=0";
			$q                  = $wpdb->prepare( $q, [ (int) $url_row['id'], $this->_url_file_types['ucss'] ] ); // phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared
			$existing_url_files = $wpdb->get_results( $q, ARRAY_A ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.PreparedSQL.NotPrepared
		}

		$q       = "UPDATE `$tb_url_file` SET expired=%d WHERE url_id=%d AND type=%d AND expired=0";
		$expired = time() + 86400 * apply_filters( 'litespeed_url_file_expired_days', 20 );
		$wpdb->query( $wpdb->prepare( $q, [ $expired, (int) $url_row['id'], $this->_url_file_types['ucss'] ] ) ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.PreparedSQL.NotPrepared

		return $existing_url_files;
	}

	/**
	 * Merge CSS excludes from file into the given list.
	 *
	 * @since 3.6
	 *
	 * @param array $list_in Existing list.
	 * @return array
	 */
	public function load_css_exc( $list_in ) {
		$data = $this->_load_per_line( 'css_excludes.txt' );
		if ( $data ) {
			$list_in = array_unique( array_filter( array_merge( $list_in, $data ) ) );
		}

		return $list_in;
	}

	/**
	 * Merge CCSS selector whitelist from file into the given list.
	 *
	 * @since 7.1
	 *
	 * @param array $list_in Existing list.
	 * @return array
	 */
	public function load_ccss_whitelist( $list_in ) {
		$data = $this->_load_per_line( 'ccss_whitelist.txt' );
		if ( $data ) {
			$list_in = array_unique( array_filter( array_merge( $list_in, $data ) ) );
		}

		return $list_in;
	}

	/**
	 * Merge UCSS whitelist from file into the given list.
	 *
	 * @since 4.0
	 *
	 * @param array $list_in Existing list.
	 * @return array
	 */
	public function load_ucss_whitelist( $list_in ) {
		$data = $this->_load_per_line( 'ucss_whitelist.txt' );
		if ( $data ) {
			$list_in = array_unique( array_filter( array_merge( $list_in, $data ) ) );
		}

		return $list_in;
	}

	/**
	 * Merge JS excludes from file into the given list.
	 *
	 * @since 3.5
	 *
	 * @param array $list_in Existing list.
	 * @return array
	 */
	public function load_js_exc( $list_in ) {
		$data = $this->_load_per_line( 'js_excludes.txt' );
		if ( $data ) {
			$list_in = array_unique( array_filter( array_merge( $list_in, $data ) ) );
		}

		return $list_in;
	}

	/**
	 * Merge JS defer excludes from file into the given list.
	 *
	 * @since 3.6
	 *
	 * @param array $list_in Existing list.
	 * @return array
	 */
	public function load_js_defer_exc( $list_in ) {
		$data = $this->_load_per_line( 'js_defer_excludes.txt' );
		if ( $data ) {
			$list_in = array_unique( array_filter( array_merge( $list_in, $data ) ) );
		}

		return $list_in;
	}

	/**
	 * Merge OPTM URI excludes from file into the given list.
	 *
	 * @since 5.4
	 *
	 * @param array $list_in Existing list.
	 * @return array
	 */
	public function load_optm_uri_exc( $list_in ) {
		$data = $this->_load_per_line( 'optm_uri_exc.txt' );
		if ( $data ) {
			$list_in = array_unique( array_filter( array_merge( $list_in, $data ) ) );
		}

		return $list_in;
	}

	/**
	 * Merge ESI nonces from file into the given list.
	 *
	 * @since 3.5
	 *
	 * @param array $list_in Existing list.
	 * @return array
	 */
	public function load_esi_nonces( $list_in ) {
		$data = $this->_load_per_line( 'esi.nonces.txt' );
		if ( $data ) {
			$list_in = array_unique( array_filter( array_merge( $list_in, $data ) ) );
		}

		return $list_in;
	}

	/**
	 * Merge "nocacheable" cache keys from file into the given list.
	 *
	 * @since 6.3.0.1
	 *
	 * @param array $list_in Existing list.
	 * @return array
	 */
	public function load_cache_nocacheable( $list_in ) {
		$data = $this->_load_per_line( 'cache_nocacheable.txt' );
		if ( $data ) {
			$list_in = array_unique( array_filter( array_merge( $list_in, $data ) ) );
		}

		return $list_in;
	}

	/**
	 * Load a data file and return non-empty lines, stripping comments.
	 *
	 * Supports:
	 *  - `# comment`
	 *  - `##comment`
	 *
	 * @since 3.5
	 * @access private
	 *
	 * @param string $file Relative filename under the plugin /data directory.
	 * @return array<int,string>
	 */
	private function _load_per_line( $file ) {
		$data = File::read( LSCWP_DIR . 'data/' . $file );
		$data = explode( PHP_EOL, $data );
		$list = [];
		foreach ( $data as $v ) {
			// Drop two kinds of comments.
			if ( false !== strpos( $v, '##' ) ) {
				$v = trim( substr( $v, 0, strpos( $v, '##' ) ) );
			}
			if ( false !== strpos( $v, '# ' ) ) {
				$v = trim( substr( $v, 0, strpos( $v, '# ' ) ) );
			}

			if ( ! $v ) {
				continue;
			}

			$list[] = $v;
		}

		return $list;
	}
}

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