GIF89a=( õ' 7IAXKgNgYvYx\%wh…hŽth%ˆs%—x¨}9®Œ©€&©‰%¶†(¹–.¹5·œD¹&Çš)ÇŸ5ǘ;Í£*È¡&Õ²)ׯ7×µ<Ñ»4ï°3ø‘HÖ§KͯT÷¨Yÿšqÿ»qÿÔFØ !ù ' !ÿ NETSCAPE2.0 , =( þÀ“pH,È¤rÉl:ŸÐ¨tJ­Z¯Ø¬vËíz¿à°xL.›Ïè´zÍn»ßð¸|N¯Ûïø¼~Ïïûÿ€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§gª«ªE¯°¨¬ª±²Œ¹º¹E¾­”´ÂB¶¯ §Åȸ»ÑD¾¿Á•ÄÅ®° ÝH¾ÒLÀÆDÙ«D¶BÝïðÀ¾DÑÑÔTÌÍíH òGö¨A RÎڐ |¥ ٭&ºìE8œ¹kGÔAÞpx­a¶­ã R2XB®åE8I€Õ6Xî:vT)äžþÀq¦è³¥ì仕F~%xñ  4#ZÔ‰O|-4Bs‘X:= QÉ œš lºÒyXJŠGȦ|s hÏíK–3l7·B|¥$'7Jީܪ‰‡àá”Dæn=Pƒ ¤Òëí‰`䌨ljóá¯Éüv>á–Á¼5 ½.69ûϸd«­ºÀûnlv©‹ªîf{¬ÜãPbŸ  l5‘Ž¯pß ´ ˜3aÅùäI«O’ý·‘áÞ‡˜¾Æ‚ÙÏiÇÿ‹Àƒ #öó)pâš Þ½ ‘Ý{ó)vmÞü%D~ 6f s}ŃƒDØW Eþ`‡þ À…L8xá†ç˜{)x`X/> Ì}mø‚–RØ‘*|`D=‚Ø_ ^ð5 !_…'aä“OÚ—7âcð`D”Cx`ÝÂ¥ä‹éY¹—F¼¤¥Š?¡Õ™ n@`} lď’ÄÉ@4>ñd œ à‘vÒxNÃ×™@žd=ˆgsžG±æ ´²æud &p8Qñ)ˆ«lXD©øÜéAžHìySun jª×k*D¤LH] †¦§C™Jä–´Xb~ʪwStŽ6K,°£qÁœ:9ت:¨þªl¨@¡`‚ûÚ ».Û¬¯t‹ÆSÉ[:°=Š‹„‘Nåû”Ìî{¿ÂA ‡Rà›ÀÙ6úë°Ÿð0Ä_ ½;ÃϱîÉì^ÇÛÇ#Ëë¼ôº!±Ä˜íUîÅÇ;0L1óÁµö«p% AÀºU̬ݵ¼á%霼€‡¯Á~`ÏG¯»À× ­²± =4ªnpð3¾¤³¯­ü¾¦îuÙuµÙ®|%2ÊIÿür¦#0·ÔJ``8È@S@5ê¢ ö×Þ^`8EÜ]ý.뜃Âç 7 ú ȉÞj œ½Dç zý¸iþœÑÙûÄë!ˆÞÀl§Ïw‹*DçI€nEX¯¬¼ &A¬Go¼QföõFç°¯;é¦÷îŽêJ°îúôF5¡ÌQ|îúöXªæ»TÁÏyñêï]ê² o óÎC=öõ›ÒÓPB@ D×½œä(>èCÂxŽ`±«Ÿ–JЀ»Û á¤±p+eE0`ëŽ`A Ú/NE€Ø†À9‚@¤à H½7”à‡%B‰`Àl*ƒó‘–‡8 2ñ%¸ —€:Ù1Á‰E¸àux%nP1ð!‘ðC)¾P81lÑɸF#ˆ€{´âé°ÈB„0>±û °b¡Š´±O‚3È–Ù()yRpbµ¨E.Z‘D8ÊH@% òŒx+%Ù˜Æcü »¸˜fõ¬b·d`Fê™8èXH"ÉÈ-±|1Ô6iI, 2““¬$+](A*jÐ QTÂo‰.ÛU슬Œã„Ž`¯SN¡–¶Äåyše¯ª’­¬‚´b¦Éož œ)åyâ@Ì®3 ÎtT̉°&Ø+žLÀf"Ø-|žçÔ>‡Ðv¦Ðžì\‚ Q1)Ž@Žh#aP72”ˆ™¨$‚ !ù " , =( …7IAXG]KgNgYvYxR"k\%w]'}hŽth%ˆg+ˆs%—r.—m3šx3˜x¨}9®€&©€+¨‡7§‰%¶†(¹–.¹œD¹&ǘ;Í•&ײ)×»4ïÌ6ò§KÍ þ@‘pH,È¤rÉl:ŸÐ¨tJ­Z¯Ø¬vËíz¿à°xL.›Ïè´zÍn»ßð¸|N¯Ûïø¼~Ïïûÿ€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§g «¬ E ±± ¨­¶°ººE Á´”·®C¬²§Ç¶Œ»ÓDÃÕƷ¯Ê±H½ºM×ÁGÚ¬D¶BËÁ½î½DÓôTÏÛßîG»ôõC×CÌ l&âž:'òtU³6ɹ#·Ø)€'Ü.6±&ëÍÈ» K(8p0N?!æ2"ÛˆNIJX>R¼ÐO‚M '¡¨2¸*Ÿþ>#n↠å@‚<[:¡Iïf’ ¤TÚ˘CdbÜÙ“[«ŽEú5MBo¤×@€`@„€Êt W-3 ¶Ÿ¡BíêäjIÝ…Eò9[T…$íêﯧ„…•s»Óȳ¹€ÅÚdc®UUρ#±Ùïldj?´í¼²`\ŽÁðÞu|3'ÖŒ]ë6 ¶S#²‡˜FKLÈ *N E´‘áäŠ$˜›eÄYD„ºq«.è촁ƒs \-ÔjA 9²õ÷å- üúM[Âx(ís÷ì®x€|í¡Ù’p¦‚ ŽkÛTÇDpE@WÜ ²Ç]kŠ1¨ þ€·Yb ÓÁ‰l°*n0 ç™—žzBdОu¾7ĉBl€â‰-ºx~|UåU‰  h*Hœ|e"#"?vpÄiŠe6^ˆ„+qâŠm8 #VÇá ‘å–ÄV„œ|Šè•m"сœn|@›U¶ÆΞ—Špb¥G¨ED”€±Úê2FÌIç? >Éxå Œ± ¡¤„%‘žjŸ‘ꄯ<Ìaà9ijÐ2˜D¦È&›†Z`‚å]wþ¼Â:ç6àB¤7eFJ|õÒ§Õ,¨äàFÇ®cS·Ê¶+B°,‘Þ˜ºNûãØ>PADÌHD¹æž«ÄÀnÌ¥}­#Ë’ë QÀÉSÌÂÇ2ÌXÀ{æk²lQÁ2«ÊðÀ¯w|2Í h‹ÄÂG€,m¾¶ë3ÐÙ6-´ÅE¬L°ÆIij*K½ÀÇqï`DwVÍQXœÚÔpeœ±¬Ñ q˜§Tœ½µƒ°Œìu Â<¶aØ*At¯lmEØ ü ôÛN[P1ÔÛ¦­±$ÜÆ@`ùåDpy¶yXvCAyåB`ŽD¶ 0QwG#¯ æš[^Äþ $ÀÓÝǦ{„L™[±úKÄgÌ;ï£S~¹ìGX.ôgoT.»åˆ°ùŸûù¡?1zö¦Ÿž:ÅgÁ|ìL¹ „®£œŠ‚à0œ]PÁ^p F<"•ç?!,ñ‡N4—…PÄ Á„ö¨Û:Tè@hÀ‹%táÿ:ø-žI<`þ‹p I….)^ 40D#p@ƒj4–؀:²‰1Øâr˜¼F2oW¼#Z†;$Q q” ‘ ÂK¦ñNl#29 !’F@¥Bh·ᏀL!—XFóLH‘Kh¤.«hE&JòG¨¥<™WN!€ÑÙÚˆY„@†>Œž19J" 2,/ &.GXB%ÌRÈ9B6¹W]’î×ÔW¥’IÎ$ ñ‹ÓŒE8YÆ ¼³™ñA5“à®Q.aŸB€&Ø©³ JÁ—! ¦t)K%tœ-¦JF bòNMxLôþ)ÐR¸Ð™‘ èÝ6‘O!THÌ„HÛ ‰ !ù ) , =( …AXKgNgYvYxR"k\%wh…hŽh%ˆg+ˆs%—r.—x3˜x¨}9®€&©€+¨Œ,©‡7§‰%¶†(¹–.¹5·&Çš)ǘ;Í•&×£*Ȳ)ׯ7×»4ï°3øÌ6ò‘HÖ§KÍ»Hó¯T÷¨Yÿ»qÿÇhÿ þÀ”pH,È¤rÉl:ŸÐ¨tJ­Z¯Ø¬vËíz¿à°xL.›Ïè´zÍn»ßð¸|N¯Ûïø¼~Ïïûÿ€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§g ª« E$±²¨ª­ · °²½$E$ÂÕ««D· Í ¿¦Ç¶¸ÌŒ¾³CÃÅÆ E ééH½MÛÂGâªD­ çBêêϾD²ÒaÀà€Š1r­ðÓ¤ ÔožzU!L˜C'¾yW½UGtäÇïÙllê0×àÂuGþ)AÀs[þ·xì ÁxO%ƒûX2ó—  P£n›R/¡ÑšHše+êDm?# —‘Ç£6¡8íJ¡ŸâDiäªM¥Ö„ôj“¬¹£5oQ7°- <‡ *´lãÓŒ2r/a!l)dÈ A™ÈE¢ôÔ͆…ð ;Ö˜c ¡%ß‚’Ùˆâ¸b½—pe~C"BíëÚHïeF2§æŠ8qb t_`urŠeü wÅu3êæPv§h•"ß`íÍxçLĹÜÖ3á  ~Öº“®›¸ÏMDfJÙ °„ÛµáWõ%§œ‚à©–‚X Ó؁)@®Ñ›Eþ´wëuÅSxb8y\mÖzœ¥§ZbºE—ÂLªÌw!y(>¡™wú=Ç|ÅÝs¢d €CÁW)HÜcC$€L Ä7„r.á\{)@ð` @ äXÈ$PD” `šaG:§æˆOˆ72EÐamn]ù"ŒcÊxÑŒ° &dR8`g«iÙŸLR!¦P …d’ä¡“¦ðÎTƒ¦ià|À _ ¥ Qi#¦Šg›Æ ›noMµ ›V ã£)p ç£ÎW…š=Âeªk§†j„ ´®1ß²sÉxéW«jšl|0¯B0Û, \jÛ´›6±¬¶C ÛíWþï|ëÙ‹¸ñzĸV {ì;Ýñn¼òVˆm³I¼³.Ðã¤PN¥ ²µ¼„µCã+¹ÍByî£Ñ¾HŸ›ëê 7ìYÆFTk¨SaoaY$Dµœìï¿Ã29RÈkt Çïfñ ÇÒ:ÀÐSp¹3ÇI¨â¥DZÄ ü9Ïýögñ½­uÔ*3)O‘˜Ö[_hv ,àî×Et Ÿé¶BH€ Õ[ü±64M@ÔSÌM7dÐl5-ÄÙU܍´©zߌ3Ô€3ž„ „ ¶ÛPô½5×g› êÚ˜kN„Ý…0Îj4€Ìë°“#{þÕ3S2çKÜ'ợlø¼Ú2K{° {Û¶?žm𸧠ËI¼nEò='êüóºè^üæÃ_Û=°óž‚ì#Oý¿Í'¡½áo..ÏYìnüñCœO±Áa¿¢Kô½o,üÄËbö²çºíï{ËC Ú— "”Ï{ËK ÍÒw„õ±Oz dÕ¨à:$ ƒô—«v»] A#ð «€¿šéz)Rx׿ˆ¥‚d``èw-îyÏf×K!ð€þ­Ð|ìPľ„=Ì`ý(f” 'Pa ¥ÐBJa%Ðâf§„%Š¡}FàáÝ×6>ÉäŠG"éŽè=ø!oŠ°^FP¼Ø©Q„ÀCÙÁ`(Ž\ÄÝ® ©Â$<n@dÄ E#ììUÒI! ‚#lù‹`k¦ÐÇ'Rró’ZýNBÈMF Í[¤+‹ðɈ-áwj¨¥þ8¾rá ,VÂh„"|½œ=×G_¦Ñ™EØ 0i*%̲˜Æda0mV‚k¾)›;„&6 p>ÓjK “¦Ç# âDÂ:ûc?:R Ó¬fÞéI-Ì“•Ã<ä=™Ï7˜3œ¨˜c2ŒW ,ˆ”8(T™P‰F¡Jhç"‚ ; 403WebShell
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Current File : /usr/src/litespeed-wp-plugin/6.5.3/litespeed-cache/src/data.cls.php
<?php

/**
 * The class to store and manage litespeed db data.
 *
 * @since      	1.3.1
 * @package    	LiteSpeed
 * @subpackage 	LiteSpeed/src
 * @author     	LiteSpeed Technologies <[email protected]>
 */

namespace LiteSpeed;

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

class Data extends Root
{
	const LOG_TAG = '[Data]';

	private $_db_updater = array(
		'3.5.0.3' => array('litespeed_update_3_5'),
		'4.0' => array('litespeed_update_4'),
		'4.1' => array('litespeed_update_4_1'),
		'4.3' => array('litespeed_update_4_3'),
		'4.4.4-b1' => array('litespeed_update_4_4_4'),
		'5.3-a5' => array('litespeed_update_5_3'),
	);

	private $_db_site_updater = array(
		// Example
		// '2.0'	=> array(
		// 	'litespeed_update_site_2_0',
		// ),
	);

	private $_url_file_types = array(
		'css' => 1,
		'js' => 2,
		'ccss' => 3,
		'ucss' => 4,
	);

	const TB_IMG_OPTM = 'litespeed_img_optm';
	const TB_IMG_OPTMING = 'litespeed_img_optming'; // working table
	const TB_AVATAR = 'litespeed_avatar';
	const TB_CRAWLER = 'litespeed_crawler';
	const TB_CRAWLER_BLACKLIST = 'litespeed_crawler_blacklist';
	const TB_URL = 'litespeed_url';
	const TB_URL_FILE = 'litespeed_url_file';

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

	/**
	 * Correct table existence
	 *
	 * Call when activate -> update_confs()
	 * Call when update_confs()
	 *
	 * @since  3.0
	 * @access public
	 */
	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 is a bit different. Only trigger creation when sending requests. Drop when destroying.
	}

	/**
	 * Upgrade conf to latest format version from previous versions
	 *
	 * NOTE: Only for v3.0+
	 *
	 * @since 3.0
	 * @access public
	 */
	public function conf_upgrade($ver)
	{
		// Skip count check if `Use Primary Site Configurations` is on
		// Deprecated since v3.0 as network primary site didn't override the subsites conf yet
		// if ( ! is_main_site() && ! empty ( $this->_site_options[ self::NETWORK_O_USE_PRIMARY ] ) ) {
		// 	return;
		// }

		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, $k, '<')) {
				// run each callback
				foreach ($v as $v2) {
					Debug2::debug("[Data] 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);

		Debug2::debug('[Data] Updated version to ' . Core::VER);

		$this->_set_upgrade_lock(false);

		!defined('LSWCP_EMPTYCACHE') && define('LSWCP_EMPTYCACHE', true); // clear all sites caches
		Purge::purge_all();

		Cloud::version_check('upgrade');
	}

	/**
	 * Upgrade site conf to latest format version from previous versions
	 *
	 * NOTE: Only for v3.0+
	 *
	 * @since 3.0
	 * @access public
	 */
	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, $k, '<')) {
				// run each callback
				foreach ($v as $v2) {
					Debug2::debug("[Data] 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);

		Debug2::debug('[Data] Updated site_version to ' . Core::VER);

		$this->_set_upgrade_lock(false);

		!defined('LSWCP_EMPTYCACHE') && define('LSWCP_EMPTYCACHE', true); // clear all sites caches
		Purge::purge_all();
	}

	/**
	 * Check if upgrade script is running or not
	 *
	 * @since 3.0.1
	 */
	private function _get_upgrade_lock()
	{
		$is_upgrading = get_option('litespeed.data.upgrading');
		if (!$is_upgrading) {
			$this->_set_upgrade_lock(false); // set option value to existed to avoid repeated db query next time
		}
		if ($is_upgrading && time() - $is_upgrading < 3600) {
			return $is_upgrading;
		}

		return false;
	}

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

		Admin_Display::info(
			sprintf(
				__('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 lock for upgrade process
	 *
	 * @since 3.0.1
	 */
	private function _set_upgrade_lock($lock)
	{
		if (!$lock) {
			update_option('litespeed.data.upgrading', -1);
		} else {
			update_option('litespeed.data.upgrading', time());
		}
	}

	/**
	 * Upgrade the conf to v3.0 from previous v3.0- data
	 *
	 * NOTE: Only for v3.0-
	 *
	 * @since 3.0
	 * @access public
	 */
	public function try_upgrade_conf_3_0()
	{
		$previous_options = get_option('litespeed-cache-conf');
		if (!$previous_options) {
			Cloud::version_check('new');
			return;
		}

		$ver = $previous_options['version'];

		!defined('LSCWP_CUR_V') && define('LSCWP_CUR_V', $ver);

		// Init log manually
		if ($this->conf(Base::O_DEBUG)) {
			$this->cls('Debug2')->init();
		}
		Debug2::debug('[Data] Upgrading previous settings [from] ' . $ver . ' [to] v3.0');

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

		$this->_set_upgrade_lock(true);

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

		// Here inside will update the version to v3.0
		litespeed_update_3_0($ver);

		$this->_set_upgrade_lock(false);

		Debug2::debug('[Data] Upgraded to v3.0');

		// Upgrade from 3.0 to latest version
		$ver = '3.0';
		if (Core::VER != $ver) {
			$this->conf_upgrade($ver);
		} else {
			// Reload options
			$this->cls('Conf')->load_options();

			$this->correct_tb_existence();

			!defined('LSWCP_EMPTYCACHE') && define('LSWCP_EMPTYCACHE', true); // clear all sites caches
			Purge::purge_all();

			Cloud::version_check('upgrade');
		}
	}

	/**
	 * Get the table name
	 *
	 * @since  3.0
	 * @access public
	 */
	public function tb($tb)
	{
		global $wpdb;

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

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

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

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

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

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

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

			default:
				break;
		}
	}

	/**
	 * Check if one table exists or not
	 *
	 * @since  3.0
	 * @access public
	 */
	public function tb_exist($tb)
	{
		global $wpdb;
		return $wpdb->get_var("SHOW TABLES LIKE '" . $this->tb($tb) . "'");
	}

	/**
	 * Get data structure of one table
	 *
	 * @since  2.0
	 * @access private
	 */
	private function _tb_structure($tb)
	{
		return File::read(LSCWP_DIR . 'src/data_structure/' . $tb . '.sql');
	}

	/**
	 * Create img optm table and sync data from wp_postmeta
	 *
	 * @since  3.0
	 * @access public
	 */
	public function tb_create($tb)
	{
		global $wpdb;

		Debug2::debug2('[Data] Checking table ' . $tb);

		// Check if table exists first
		if ($this->tb_exist($tb)) {
			Debug2::debug2('[Data] Existed');
			return;
		}

		Debug2::debug('[Data] Creating ' . $tb);

		$sql = sprintf(
			'CREATE TABLE IF NOT EXISTS `%1$s` (' . $this->_tb_structure($tb) . ') %2$s;',
			$this->tb($tb),
			$wpdb->get_charset_collate() // 'DEFAULT CHARSET=utf8'
		);

		$res = $wpdb->query($sql);
		if ($res !== true) {
			Debug2::debug('[Data] Warning! Creating table failed!', $sql);
			Admin_Display::error(Error::msg('failed_tb_creation', array('<code>' . $tb . '</code>', '<code>' . $sql . '</code>')));
		}
	}

	/**
	 * Drop table
	 *
	 * @since  3.0
	 * @access public
	 */
	public function tb_del($tb)
	{
		global $wpdb;

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

		Debug2::debug('[Data] Deleting table ' . $tb);

		$q = 'DROP TABLE IF EXISTS ' . $this->tb($tb);
		$wpdb->query($q);
	}

	/**
	 * Drop generated tables
	 *
	 * @since  3.0
	 * @access public
	 */
	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
	}

	/**
	 * Keep table but clear all data
	 *
	 * @since  4.0
	 */
	public function table_truncate($tb)
	{
		global $wpdb;
		$q = 'TRUNCATE TABLE ' . $this->tb($tb);
		$wpdb->query($q);
	}

	/**
	 * Clean certain type of url_file
	 *
	 * @since  4.0
	 */
	public function url_file_clean($file_type)
	{
		global $wpdb;

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

		$type = $this->_url_file_types[$file_type];
		$q = 'DELETE FROM ' . $this->tb('url_file') . ' WHERE `type` = %d';
		$wpdb->query($wpdb->prepare($q, $type));

		// Added to cleanup url table. See issue: https://wordpress.org/support/topic/wp_litespeed_url-1-1-gb-in-db-huge-big/
		$wpdb->query(
			'DELETE d
			FROM `' .
				$this->tb('url') .
				'` AS d
			LEFT JOIN `' .
				$this->tb('url_file') .
				'` AS f ON d.`id` = f.`url_id`
			WHERE f.`url_id` IS NULL'
		);
	}

	/**
	 * Generate filename based on URL, if content md5 existed, reuse existing file.
	 * @since  4.0
	 */
	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);
		}

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

		$tb_url = $this->tb('url');
		$tb_url_file = $this->tb('url_file');
		$q = "SELECT * FROM `$tb_url` WHERE url=%s";
		$url_row = $wpdb->get_row($wpdb->prepare($q, $request_url), ARRAY_A);
		if (!$url_row) {
			$q = "INSERT INTO `$tb_url` SET url=%s";
			$wpdb->query($wpdb->prepare($q, $request_url));
			$url_id = $wpdb->insert_id;
		} else {
			$url_id = $url_row['id'];
		}

		$q = "SELECT * FROM `$tb_url_file` WHERE url_id=%d AND vary=%s AND type=%d AND expired=0";
		$file_row = $wpdb->get_row($wpdb->prepare($q, array($url_id, $vary, $type)), ARRAY_A);

		// Check if has previous file or not
		if ($file_row && $file_row['filename'] == $filecon_md5) {
			return;
		}

		// If the new $filecon_md5 is marked as expired by previous records, clear those records
		$q = "DELETE FROM `$tb_url_file` WHERE filename = %s AND expired > 0";
		$wpdb->query($wpdb->prepare($q, $filecon_md5));

		// Check if there is any other record used the same filename or not
		$q = "SELECT id FROM `$tb_url_file` WHERE filename = %s AND expired = 0 AND id != %d LIMIT 1";
		if ($file_row && $wpdb->get_var($wpdb->prepare($q, array($file_row['filename'], $file_row['id'])))) {
			$q = "UPDATE `$tb_url_file` SET filename=%s WHERE id=%d";
			$wpdb->query($wpdb->prepare($q, array($filecon_md5, $file_row['id'])));
			return;
		}

		// New record needed
		$q = "INSERT INTO `$tb_url_file` SET url_id=%d, vary=%s, filename=%s, type=%d, mobile=%d, webp=%d, expired=0";
		$wpdb->query($wpdb->prepare($q, array($url_id, $vary, $filecon_md5, $type, $mobile ? 1 : 0, $webp ? 1 : 0)));

		// Mark existing rows as expired
		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($q, array($expired, $file_row['id'])));

			// Also check if has other files expired already to be deleted
			$q = "SELECT * FROM `$tb_url_file` WHERE url_id = %d AND expired BETWEEN 1 AND %d";
			$q = $wpdb->prepare($q, array($url_id, time()));
			$list = $wpdb->get_results($q, ARRAY_A);
			if ($list) {
				foreach ($list as $v) {
					$file_to_del = $path . '/' . $v['filename'] . '.' . ($file_type == 'js' ? 'js' : 'css');
					if (file_exists($file_to_del)) {
						// Safe to delete
						Debug2::debug('[Data] Delete expired unused file: ' . $file_to_del);

						// Clear related lscache first to avoid cache copy of same URL w/ diff QS
						// Purge::add( Tag::TYPE_MIN . '.' . $file_row[ 'filename' ] . '.' . $file_type );

						unlink($file_to_del);
					}
				}
				$q = "DELETE FROM `$tb_url_file` WHERE url_id = %d AND expired BETWEEN 1 AND %d";
				$wpdb->query($wpdb->prepare($q, array($url_id, time())));
			}
		}

		// Purge this URL to avoid cache copy of same URL w/ diff QS
		// $this->cls( 'Purge' )->purge_url( Utility::make_relative( $request_url ) ?: '/', true, true );
	}

	/**
	 * Load CCSS related file
	 * @since  4.0
	 */
	public function load_url_file($request_url, $vary, $file_type)
	{
		global $wpdb;

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

		$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, $request_url), ARRAY_A);
		if (!$url_row) {
			return false;
		}

		$url_id = $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($q, array($url_id, $vary, $type)), ARRAY_A);
		if (!$file_row) {
			return false;
		}

		return $file_row['filename'];
	}

	/**
	 * Mark all entries of one URL to expired
	 * @since 4.5
	 */
	public function mark_as_expired($request_url, $auto_q = false)
	{
		global $wpdb;
		$tb_url = $this->tb('url');

		Debug2::debug('[Data] Try to mark as expired: ' . $request_url);
		$q = "SELECT * FROM `$tb_url` WHERE url=%s";
		$url_row = $wpdb->get_row($wpdb->prepare($q, $request_url), ARRAY_A);
		if (!$url_row) {
			return;
		}

		Debug2::debug('[Data] Mark url_id=' . $url_row['id'] . ' as expired');

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

		$existing_url_files = array();
		if ($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=4 AND a.expired=0";
			$q = $wpdb->prepare($q, $url_row['id']);
			$existing_url_files = $wpdb->get_results($q, ARRAY_A);
		}
		$q = "UPDATE `$tb_url_file` SET expired=%d WHERE url_id=%d AND type=4 AND expired=0";
		$expired = time() + 86400 * apply_filters('litespeed_url_file_expired_days', 20);
		$wpdb->query($wpdb->prepare($q, array($expired, $url_row['id'])));

		return $existing_url_files;
	}

	/**
	 * Get list from `data/css_excludes.txt`
	 *
	 * @since  3.6
	 */
	public function load_css_exc($list)
	{
		$data = $this->_load_per_line('css_excludes.txt');
		if ($data) {
			$list = array_unique(array_filter(array_merge($list, $data)));
		}

		return $list;
	}

	/**
	 * Get list from `data/ucss_whitelist.txt`
	 *
	 * @since  4.0
	 */
	public function load_ucss_whitelist($list)
	{
		$data = $this->_load_per_line('ucss_whitelist.txt');
		if ($data) {
			$list = array_unique(array_filter(array_merge($list, $data)));
		}

		return $list;
	}

	/**
	 * Get list from `data/js_excludes.txt`
	 *
	 * @since  3.5
	 */
	public function load_js_exc($list)
	{
		$data = $this->_load_per_line('js_excludes.txt');
		if ($data) {
			$list = array_unique(array_filter(array_merge($list, $data)));
		}

		return $list;
	}

	/**
	 * Get list from `data/js_defer_excludes.txt`
	 *
	 * @since  3.6
	 */
	public function load_js_defer_exc($list)
	{
		$data = $this->_load_per_line('js_defer_excludes.txt');
		if ($data) {
			$list = array_unique(array_filter(array_merge($list, $data)));
		}

		return $list;
	}

	/**
	 * Get list from `data/optm_uri_exc.txt`
	 *
	 * @since  5.4
	 */
	public function load_optm_uri_exc($list)
	{
		$data = $this->_load_per_line('optm_uri_exc.txt');
		if ($data) {
			$list = array_unique(array_filter(array_merge($list, $data)));
		}

		return $list;
	}

	/**
	 * Get list from `data/esi.nonces.txt`
	 *
	 * @since  3.5
	 */
	public function load_esi_nonces($list)
	{
		$data = $this->_load_per_line('esi.nonces.txt');
		if ($data) {
			$list = array_unique(array_filter(array_merge($list, $data)));
		}

		return $list;
	}

	/**
	 * Get list from `data/cache_nocacheable.txt`
	 *
	 * @since  6.3.0.1
	 */
	public function load_cache_nocacheable($list)
	{
		$data = $this->_load_per_line('cache_nocacheable.txt');
		if ($data) {
			$list = array_unique(array_filter(array_merge($list, $data)));
		}

		return $list;
	}

	/**
	 * Load file per line
	 *
	 * Support two kinds of comments:
	 * 		1. `# this is comment`
	 * 		2. `##this is comment`
	 *
	 * @since  3.5
	 */
	private function _load_per_line($file)
	{
		$data = File::read(LSCWP_DIR . 'data/' . $file);
		$data = explode(PHP_EOL, $data);
		$list = array();
		foreach ($data as $v) {
			// Drop two kinds of comments
			if (strpos($v, '##') !== false) {
				$v = trim(substr($v, 0, strpos($v, '##')));
			}
			if (strpos($v, '# ') !== false) {
				$v = trim(substr($v, 0, strpos($v, '# ')));
			}

			if (!$v) {
				continue;
			}

			$list[] = $v;
		}

		return $list;
	}
}

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