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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Server IP : 104.21.83.152  /  Your IP : 216.73.216.195
Web Server : LiteSpeed
System : Linux premium229.web-hosting.com 4.18.0-553.45.1.lve.el8.x86_64 #1 SMP Wed Mar 26 12:08:09 UTC 2025 x86_64
User : akhalid ( 749)
PHP Version : 8.3.22
Disable Function : NONE
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Current File : /usr/src/litespeed-wp-plugin/6.5.3/litespeed-cache/src/activation.cls.php
<?php

/**
 * The plugin activation class.
 *
 * @since      	1.1.0
 * @since  		1.5 Moved into /inc
 * @package    	LiteSpeed
 * @subpackage 	LiteSpeed/inc
 * @author     	LiteSpeed Technologies <[email protected]>
 */

namespace LiteSpeed;

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

class Activation extends Base
{
	const TYPE_UPGRADE = 'upgrade';
	const TYPE_INSTALL_3RD = 'install_3rd';
	const TYPE_INSTALL_ZIP = 'install_zip';
	const TYPE_DISMISS_RECOMMENDED = 'dismiss_recommended';

	const NETWORK_TRANSIENT_COUNT = 'lscwp_network_count';

	private static $_data_file;

	/**
	 * Construct
	 *
	 * @since 4.1
	 */
	public function __construct()
	{
		self::$_data_file = LSCWP_CONTENT_DIR . '/' . self::CONF_FILE;
	}

	/**
	 * The activation hook callback.
	 *
	 * @since 1.0.0
	 * @access public
	 */
	public static function register_activation()
	{
		global $wp_version;
		$advanced_cache = LSCWP_CONTENT_DIR . '/advanced-cache.php';
		if (version_compare($wp_version, '5.3', '<') && !file_exists($advanced_cache)) {
			$file_pointer = fopen($advanced_cache, 'w');
			fwrite($file_pointer, "<?php\n\n// A compatibility placeholder for WordPress < v5.3\n// Created by LSCWP v6.1+");
			fclose($file_pointer);
		}

		$count = 0;
		!defined('LSCWP_LOG_TAG') && define('LSCWP_LOG_TAG', 'Activate_' . get_current_blog_id());

		if (is_multisite()) {
			$count = self::get_network_count();
			if ($count !== false) {
				$count = intval($count) + 1;
				set_site_transient(self::NETWORK_TRANSIENT_COUNT, $count, DAY_IN_SECONDS);
			}
		}

		// Files will be delayed updated in next visit to wp-admin
		Conf::update_option('__activation', Core::VER);

		/* Network file handler */
		if (is_multisite()) {
			if (!is_network_admin()) {
				if ($count === 1) {
					// Only itself is activated, set .htaccess with only CacheLookUp
					try {
						Htaccess::cls()->insert_ls_wrapper();
					} catch (\Exception $ex) {
						Admin_Display::error($ex->getMessage());
					}
				}
			}
		}

		if (defined('LSCWP_REF') && LSCWP_REF == 'whm') {
			GUI::update_option(GUI::WHM_MSG, GUI::WHM_MSG_VAL);
		}
	}

	/**
	 * Uninstall plugin
	 * @since 1.1.0
	 */
	public static function uninstall_litespeed_cache()
	{
		Task::destroy();

		// Delete options
		foreach (Conf::cls()->load_default_vals() as $k => $v) {
			Base::delete_option($k);
		}

		// Delete site options
		if (is_multisite()) {
			foreach (Conf::cls()->load_default_site_vals() as $k => $v) {
				Base::delete_site_option($k);
			}
		}

		// Delete avatar table
		Data::cls()->tables_del();

		if (file_exists(LITESPEED_STATIC_DIR)) {
			File::rrmdir(LITESPEED_STATIC_DIR);
		}

		Cloud::version_check('uninstall');

		// Files has been deleted when deactivated
	}

	/**
	 * Get the blog ids for the network. Accepts function arguments.
	 *
	 * Will use wp_get_sites for WP versions less than 4.6
	 *
	 * @since 1.0.12
	 * @access public
	 * @return array The array of blog ids.
	 */
	public static function get_network_ids($args = array())
	{
		global $wp_version;
		if (version_compare($wp_version, '4.6', '<')) {
			$blogs = wp_get_sites($args);
			if (!empty($blogs)) {
				foreach ($blogs as $key => $blog) {
					$blogs[$key] = $blog['blog_id'];
				}
			}
		} else {
			$args['fields'] = 'ids';
			$blogs = get_sites($args);
		}
		return $blogs;
	}

	/**
	 * Gets the count of active litespeed cache plugins on multisite.
	 *
	 * @since 1.0.12
	 * @access private
	 */
	private static function get_network_count()
	{
		$count = get_site_transient(self::NETWORK_TRANSIENT_COUNT);
		if ($count !== false) {
			return intval($count);
		}
		// need to update
		$default = array();
		$count = 0;

		$sites = self::get_network_ids(array('deleted' => 0));
		if (empty($sites)) {
			return false;
		}

		foreach ($sites as $site) {
			$bid = is_object($site) && property_exists($site, 'blog_id') ? $site->blog_id : $site;
			$plugins = get_blog_option($bid, 'active_plugins', $default);
			if (in_array(LSCWP_BASENAME, $plugins, true)) {
				$count++;
			}
		}

		/**
		 * In case this is called outside the admin page
		 * @see  https://codex.wordpress.org/Function_Reference/is_plugin_active_for_network
		 * @since  2.0
		 */
		if (!function_exists('is_plugin_active_for_network')) {
			require_once ABSPATH . '/wp-admin/includes/plugin.php';
		}

		if (is_plugin_active_for_network(LSCWP_BASENAME)) {
			$count++;
		}
		return $count;
	}

	/**
	 * Is this deactivate call the last active installation on the multisite network?
	 *
	 * @since 1.0.12
	 * @access private
	 */
	private static function is_deactivate_last()
	{
		$count = self::get_network_count();
		if ($count === false) {
			return false;
		}
		if ($count !== 1) {
			// Not deactivating the last one.
			$count--;
			set_site_transient(self::NETWORK_TRANSIENT_COUNT, $count, DAY_IN_SECONDS);
			return false;
		}

		delete_site_transient(self::NETWORK_TRANSIENT_COUNT);
		return true;
	}

	/**
	 * The deactivation hook callback.
	 *
	 * Initializes all clean up functionalities.
	 *
	 * @since 1.0.0
	 * @access public
	 */
	public static function register_deactivation()
	{
		Task::destroy();

		!defined('LSCWP_LOG_TAG') && define('LSCWP_LOG_TAG', 'Deactivate_' . get_current_blog_id());

		Purge::purge_all();

		if (is_multisite()) {
			if (!self::is_deactivate_last()) {
				if (is_network_admin()) {
					// Still other activated subsite left, set .htaccess with only CacheLookUp
					try {
						Htaccess::cls()->insert_ls_wrapper();
					} catch (\Exception $ex) {
						Admin_Display::error($ex->getMessage());
					}
				}
				return;
			}
		}

		/* 1) wp-config.php; */

		try {
			self::cls()->_manage_wp_cache_const(false);
		} catch (\Exception $ex) {
			error_log('In wp-config.php: WP_CACHE could not be set to false during deactivation!');

			Admin_Display::error($ex->getMessage());
		}

		/* 2) adv-cache.php; Dropped in v3.0.4 */

		/* 3) object-cache.php; */

		Object_Cache::cls()->del_file();

		/* 4) .htaccess; */

		try {
			Htaccess::cls()->clear_rules();
		} catch (\Exception $ex) {
			Admin_Display::error($ex->getMessage());
		}

		/* 5) .litespeed_conf.dat; */

		self::_del_conf_data_file();

		// delete in case it's not deleted prior to deactivation.
		GUI::dismiss_whm();
	}

	/**
	 * Manage related files based on plugin latest conf
	 *
	 * NOTE: Only trigger this in backend admin access for efficiency concern
	 *
	 * Handle files:
	 * 		1) wp-config.php;
	 * 		2) adv-cache.php;
	 * 		3) object-cache.php;
	 * 		4) .htaccess;
	 * 		5) .litespeed_conf.dat;
	 *
	 * @since 3.0
	 * @access public
	 */
	public function update_files()
	{
		Debug2::debug('🗂️ [Activation] update_files');

		// Update cache setting `_CACHE`
		$this->cls('Conf')->define_cache();

		// Site options applied already
		$options = $this->get_options();

		/* 1) wp-config.php; */

		try {
			$this->_manage_wp_cache_const($options[self::_CACHE]);
		} catch (\Exception $ex) {
			// Add msg to admin page or CLI
			Admin_Display::error($ex->getMessage());
		}

		/* 2) adv-cache.php; Dropped in v3.0.4 */

		/* 3) object-cache.php; */

		if ($options[self::O_OBJECT] && (!$options[self::O_DEBUG_DISABLE_ALL] || is_multisite())) {
			$this->cls('Object_Cache')->update_file($options);
		} else {
			$this->cls('Object_Cache')->del_file(); // Note: because it doesn't reconnect, which caused setting page OC option changes delayed, thus may meet Connect Test Failed issue (Next refresh will correct it). Not a big deal, will keep as is.
		}

		/* 4) .htaccess; */

		try {
			$this->cls('Htaccess')->update($options);
		} catch (\Exception $ex) {
			Admin_Display::error($ex->getMessage());
		}

		/* 5) .litespeed_conf.dat; */

		if (($options[self::O_GUEST] || $options[self::O_OBJECT]) && (!$options[self::O_DEBUG_DISABLE_ALL] || is_multisite())) {
			$this->_update_conf_data_file($options);
		}
	}

	/**
	 * Delete data conf file
	 *
	 * @since  4.1
	 */
	private static function _del_conf_data_file()
	{
		if (file_exists(self::$_data_file)) {
			unlink(self::$_data_file);
		}
	}

	/**
	 * Update data conf file for guest mode & object cache
	 *
	 * @since  4.1
	 */
	private function _update_conf_data_file($options)
	{
		$ids = array();
		if ($options[self::O_OBJECT]) {
			$this_ids = array(
				self::O_DEBUG,
				self::O_OBJECT_KIND,
				self::O_OBJECT_HOST,
				self::O_OBJECT_PORT,
				self::O_OBJECT_LIFE,
				self::O_OBJECT_USER,
				self::O_OBJECT_PSWD,
				self::O_OBJECT_DB_ID,
				self::O_OBJECT_PERSISTENT,
				self::O_OBJECT_ADMIN,
				self::O_OBJECT_TRANSIENTS,
				self::O_OBJECT_GLOBAL_GROUPS,
				self::O_OBJECT_NON_PERSISTENT_GROUPS,
			);
			$ids = array_merge($ids, $this_ids);
		}

		if ($options[self::O_GUEST]) {
			$this_ids = array(self::HASH, self::O_CACHE_LOGIN_COOKIE, self::O_DEBUG_IPS, self::O_UTIL_NO_HTTPS_VARY, self::O_GUEST_UAS, self::O_GUEST_IPS);
			$ids = array_merge($ids, $this_ids);
		}

		$data = array();
		foreach ($ids as $v) {
			$data[$v] = $options[$v];
		}
		$data = \json_encode($data);

		$old_data = File::read(self::$_data_file);
		if ($old_data != $data) {
			defined('LSCWP_LOG') && Debug2::debug('[Activation] Updating .litespeed_conf.dat');
			File::save(self::$_data_file, $data);
		}
	}

	/**
	 * Update the WP_CACHE variable in the wp-config.php file.
	 *
	 * If enabling, check if the variable is defined, and if not, define it.
	 * Vice versa for disabling.
	 *
	 * @since 1.0.0
	 * @since  3.0 Refactored
	 * @access private
	 */
	private function _manage_wp_cache_const($enable)
	{
		if ($enable) {
			if (defined('WP_CACHE') && WP_CACHE) {
				return false;
			}
		} elseif (!defined('WP_CACHE') || (defined('WP_CACHE') && !WP_CACHE)) {
			return false;
		}

		if (apply_filters('litespeed_wpconfig_readonly', false)) {
			throw new \Exception('wp-config file is forbidden to modify due to API hook: litespeed_wpconfig_readonly');
		}

		/**
		 * Follow WP's logic to locate wp-config file
		 * @see wp-load.php
		 */
		$conf_file = ABSPATH . 'wp-config.php';
		if (!file_exists($conf_file)) {
			$conf_file = dirname(ABSPATH) . '/wp-config.php';
		}

		$content = File::read($conf_file);
		if (!$content) {
			throw new \Exception('wp-config file content is empty: ' . $conf_file);
		}

		// Remove the line `define('WP_CACHE', true/false);` first
		if (defined('WP_CACHE')) {
			$content = preg_replace('/define\(\s*([\'"])WP_CACHE\1\s*,\s*\w+\s*\)\s*;/sU', '', $content);
		}

		// Insert const
		if ($enable) {
			$content = preg_replace('/^<\?php/', "<?php\ndefine( 'WP_CACHE', true );", $content);
		}

		$res = File::save($conf_file, $content, false, false, false);

		if ($res !== true) {
			throw new \Exception('wp-config.php operation failed when changing `WP_CACHE` const: ' . $res);
		}

		return true;
	}

	/**
	 * Handle auto update
	 *
	 * @since 2.7.2
	 * @access public
	 */
	public function auto_update()
	{
		if (!$this->conf(Base::O_AUTO_UPGRADE)) {
			return;
		}

		add_filter('auto_update_plugin', array($this, 'auto_update_hook'), 10, 2);
	}

	/**
	 * Auto upgrade hook
	 *
	 * @since  3.0
	 * @access public
	 */
	public function auto_update_hook($update, $item)
	{
		if (!empty($item->slug) && 'litespeed-cache' === $item->slug) {
			$auto_v = Cloud::version_check('auto_update_plugin');

			if (!empty($auto_v['latest']) && !empty($item->new_version) && $auto_v['latest'] === $item->new_version) {
				return true;
			}
		}

		return $update; // Else, use the normal API response to decide whether to update or not
	}

	/**
	 * Upgrade LSCWP
	 *
	 * @since 2.9
	 * @access public
	 */
	public function upgrade()
	{
		$plugin = Core::PLUGIN_FILE;

		/**
		 * @see wp-admin/update.php
		 */
		include_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
		include_once ABSPATH . 'wp-admin/includes/file.php';
		include_once ABSPATH . 'wp-admin/includes/misc.php';

		try {
			ob_start();
			$skin = new \WP_Ajax_Upgrader_Skin();
			$upgrader = new \Plugin_Upgrader($skin);
			$result = $upgrader->upgrade($plugin);
			if (!is_plugin_active($plugin)) {
				// todo: upgrade should reactivate the plugin again by WP. Need to check why disabled after upgraded.
				activate_plugin($plugin, '', is_multisite());
			}
			ob_end_clean();
		} catch (\Exception $e) {
			Admin_Display::error(__('Failed to upgrade.', 'litespeed-cache'));
			return;
		}

		if (is_wp_error($result)) {
			Admin_Display::error(__('Failed to upgrade.', 'litespeed-cache'));
			return;
		}

		Admin_Display::succeed(__('Upgraded successfully.', 'litespeed-cache'));
	}

	/**
	 * Detect if the plugin is active or not
	 *
	 * @since  1.0
	 */
	public function dash_notifier_is_plugin_active($plugin)
	{
		include_once ABSPATH . 'wp-admin/includes/plugin.php';

		$plugin_path = $plugin . '/' . $plugin . '.php';

		return is_plugin_active($plugin_path);
	}

	/**
	 * Detect if the plugin is installed or not
	 *
	 * @since  1.0
	 */
	public function dash_notifier_is_plugin_installed($plugin)
	{
		include_once ABSPATH . 'wp-admin/includes/plugin.php';

		$plugin_path = $plugin . '/' . $plugin . '.php';

		$valid = validate_plugin($plugin_path);

		return !is_wp_error($valid);
	}

	/**
	 * Grab a plugin info from WordPress
	 *
	 * @since  1.0
	 */
	public function dash_notifier_get_plugin_info($slug)
	{
		include_once ABSPATH . 'wp-admin/includes/plugin-install.php';
		$result = plugins_api('plugin_information', array('slug' => $slug));

		if (is_wp_error($result)) {
			return false;
		}

		return $result;
	}

	/**
	 * Install the 3rd party plugin
	 *
	 * @since  1.0
	 */
	public function dash_notifier_install_3rd()
	{
		!defined('SILENCE_INSTALL') && define('SILENCE_INSTALL', true);

		$slug = !empty($_GET['plugin']) ? $_GET['plugin'] : false;

		// Check if plugin is installed already
		if (!$slug || $this->dash_notifier_is_plugin_active($slug)) {
			return;
		}

		/**
		 * @see wp-admin/update.php
		 */
		include_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
		include_once ABSPATH . 'wp-admin/includes/file.php';
		include_once ABSPATH . 'wp-admin/includes/misc.php';

		$plugin_path = $slug . '/' . $slug . '.php';

		if (!$this->dash_notifier_is_plugin_installed($slug)) {
			$plugin_info = $this->dash_notifier_get_plugin_info($slug);
			if (!$plugin_info) {
				return;
			}
			// Try to install plugin
			try {
				ob_start();
				$skin = new \Automatic_Upgrader_Skin();
				$upgrader = new \Plugin_Upgrader($skin);
				$result = $upgrader->install($plugin_info->download_link);
				ob_end_clean();
			} catch (\Exception $e) {
				return;
			}
		}

		if (!is_plugin_active($plugin_path)) {
			activate_plugin($plugin_path);
		}
	}

	/**
	 * Handle all request actions from main cls
	 *
	 * @since  2.9
	 * @access public
	 */
	public function handler()
	{
		$type = Router::verify_type();

		switch ($type) {
			case self::TYPE_UPGRADE:
				$this->upgrade();
				break;

			case self::TYPE_INSTALL_3RD:
				$this->dash_notifier_install_3rd();
				break;

			case self::TYPE_DISMISS_RECOMMENDED:
				Cloud::reload_summary();
				Cloud::save_summary(array('news.new' => 0));
				break;

			case self::TYPE_INSTALL_ZIP:
				Cloud::reload_summary();
				$summary = Cloud::get_summary();
				if (!empty($summary['news.zip'])) {
					Cloud::save_summary(array('news.new' => 0));

					$this->cls('Debug2')->beta_test($summary['zip']);
				}
				break;

			default:
				break;
		}

		Admin::redirect();
	}
}

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