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<?php /** * The htaccess rewrite rule operation class. * * Responsible for reading, writing, and generating .htaccess rules used by LiteSpeed Cache. * * @package LiteSpeed * @since 1.0.0 / namespace LiteSpeed; defined( 'WPINC' ) \|\| exit(); /* * Class Htaccess * * Provides utilities to locate, read, backup, and write .htaccess files for both frontend and backend, * as well as generate and manage LiteSpeed-specific rule blocks. / class Htaccess extends Root { /* * Absolute path to the frontend `.htaccess`. * * @var string\|null / private $frontend_htaccess = null; /* * Default/auto-detected frontend `.htaccess` path before filters/overrides. * * @var string\|null / private $_default_frontend_htaccess = null; /* * Absolute path to the backend `.htaccess`. * * @var string\|null / private $backend_htaccess = null; /* * Default/auto-detected backend `.htaccess` path before filters/overrides. * * @var string\|null / private $_default_backend_htaccess = null; /* * Whether the frontend `.htaccess` (or its directory) is readable. * * @var bool / private $frontend_htaccess_readable = false; /* * Whether the frontend `.htaccess` (or its directory) is writable. * * @var bool / private $frontend_htaccess_writable = false; /* * Whether the backend `.htaccess` (or its directory) is readable. * * @var bool / private $backend_htaccess_readable = false; /* * Whether the backend `.htaccess` (or its directory) is writable. * * @var bool / private $backend_htaccess_writable = false; /* * Lines that turn on and guard rewrite/module blocks. * * @var array<int,string> / private $__rewrite_on; /* * Lines that turn on and guard general rewrite/module blocks. * * @var array<int,string> / private $__rewrite_general; const LS_MODULE_START = '<IfModule LiteSpeed>'; const EXPIRES_MODULE_START = '<IfModule mod_expires.c>'; const LS_MODULE_END = '</IfModule>'; const LS_MODULE_REWRITE_START = '<IfModule mod_rewrite.c>'; const REWRITE_ON = 'RewriteEngine on'; const LS_MODULE_DONOTEDIT = '## LITESPEED WP CACHE PLUGIN - Do not edit the contents of this block! ##'; const MARKER = 'LSCACHE'; const MARKER_NONLS = 'NON_LSCACHE'; const MARKER_LOGIN_COOKIE = '### marker LOGIN COOKIE'; const MARKER_ASYNC = '### marker ASYNC'; const MARKER_CRAWLER = '### marker CRAWLER'; const MARKER_MOBILE = '### marker MOBILE'; const MARKER_NOCACHE_COOKIES = '### marker NOCACHE COOKIES'; const MARKER_NOCACHE_USER_AGENTS = '### marker NOCACHE USER AGENTS'; const MARKER_CACHE_RESOURCE = '### marker CACHE RESOURCE'; const MARKER_BROWSER_CACHE = '### marker BROWSER CACHE'; const MARKER_MINIFY = '### marker MINIFY'; const MARKER_CORS = '### marker CORS'; const MARKER_WEBP = '### marker WEBP'; const MARKER_DROPQS = '### marker DROPQS'; const MARKER_START = ' start ###'; const MARKER_END = ' end ###'; /* * Initialize the class and set its properties. * * @since 1.0.7 / public function __construct() { $this->_path_set(); $this->_default_frontend_htaccess = $this->frontend_htaccess; $this->_default_backend_htaccess = $this->backend_htaccess; $frontend_htaccess = defined( 'LITESPEED_CFG_HTACCESS' ) ? constant( 'LITESPEED_CFG_HTACCESS' ) : false; if ( $frontend_htaccess && substr( $frontend_htaccess, -10 ) === '/.htaccess' ) { $this->frontend_htaccess = $frontend_htaccess; } $backend_htaccess = defined( 'LITESPEED_CFG_HTACCESS_BACKEND' ) ? constant( 'LITESPEED_CFG_HTACCESS_BACKEND' ) : false; if ( $backend_htaccess && substr( $backend_htaccess, -10 ) === '/.htaccess' ) { $this->backend_htaccess = $backend_htaccess; } // Filter for frontend & backend htaccess path. $this->frontend_htaccess = apply_filters( 'litespeed_frontend_htaccess', $this->frontend_htaccess ); $this->backend_htaccess = apply_filters( 'litespeed_backend_htaccess', $this->backend_htaccess ); clearstatcache(); // Frontend .htaccess privilege. $test_permissions = file_exists( $this->frontend_htaccess ) ? $this->frontend_htaccess : dirname( $this->frontend_htaccess ); if ( is_readable( $test_permissions ) ) { $this->frontend_htaccess_readable = true; } if ( is_writable( $test_permissions ) ) { // phpcs:ignore WordPress.WP.AlternativeFunctions.file_system_operations_is_writable -- Checking permissions, not file operations. $this->frontend_htaccess_writable = true; } // General Rewrite Rules (Files/Logs protection) $this->__rewrite_general = [ self::LS_MODULE_REWRITE_START, // <IfModule mod_rewrite.c> self::REWRITE_ON, // RewriteEngine on 'RewriteRule ' . preg_quote(LITESPEED_DATA_FOLDER) . '/debug/.\.log$ - [F,L]', // phpcs:ignore WordPress.PHP.PregQuoteDelimiter.Missing 'RewriteRule ' . preg_quote(self::CONF_FILE) . ' - [F,L]', // phpcs:ignore WordPress.PHP.PregQuoteDelimiter.Missing self::LS_MODULE_END, // </IfModule> ]; $this->__rewrite_on = [ 'CacheLookup on', 'RewriteRule .* - [E=Cache-Control:no-autoflush]', ]; // Backend .htaccess privilege. if ( $this->frontend_htaccess === $this->backend_htaccess ) { $this->backend_htaccess_readable = $this->frontend_htaccess_readable; $this->backend_htaccess_writable = $this->frontend_htaccess_writable; } else { $test_permissions = file_exists( $this->backend_htaccess ) ? $this->backend_htaccess : dirname( $this->backend_htaccess ); if ( is_readable( $test_permissions ) ) { $this->backend_htaccess_readable = true; } if ( is_writable( $test_permissions ) ) { // phpcs:ignore WordPress.WP.AlternativeFunctions.file_system_operations_is_writable -- Checking permissions, not file operations. $this->backend_htaccess_writable = true; } } } /** * Get if htaccess file is readable. * * @since 1.1.0 * * @param string $kind 'frontend' or 'backend'. * @return bool / private function _readable( $kind = 'frontend' ) { if ( 'frontend' === $kind ) { return $this->frontend_htaccess_readable; } if ( 'backend' === $kind ) { return $this->backend_htaccess_readable; } return false; } /* * Get if htaccess file is writable. * * @since 1.1.0 * * @param string $kind 'frontend' or 'backend'. * @return bool / public function writable( $kind = 'frontend' ) { if ( 'frontend' === $kind ) { return $this->frontend_htaccess_writable; } if ( 'backend' === $kind ) { return $this->backend_htaccess_writable; } return false; } /* * Get frontend htaccess path. * * @since 1.1.0 * * @param bool $show_default Whether to return the default/auto-detected path. * @return string / public static function get_frontend_htaccess( $show_default = false ) { if ( $show_default ) { return self::cls()->_default_frontend_htaccess; } return self::cls()->frontend_htaccess; } /* * Get backend htaccess path. * * @since 1.1.0 * * @param bool $show_default Whether to return the default/auto-detected path. * @return string / public static function get_backend_htaccess( $show_default = false ) { if ( $show_default ) { return self::cls()->_default_backend_htaccess; } return self::cls()->backend_htaccess; } /* * Check to see if .htaccess exists starting at $start_path and going up directories until it hits DOCUMENT_ROOT. * * As dirname() strips the ending '/', paths passed in must exclude the final '/'. * * @since 1.0.11 * @access private * * @param string $start_path Absolute path to begin searching from (without trailing slash). * @return string\|false The directory containing .htaccess, or false if not found. / private function _htaccess_search( $start_path ) { while ( ! file_exists( $start_path . '/.htaccess' ) ) { if ( '/' === $start_path \|\| ! $start_path ) { return false; } $doc_root = ! empty( $_SERVER['DOCUMENT_ROOT'] ) ? sanitize_text_field( wp_unslash( $_SERVER['DOCUMENT_ROOT'] ) ) : ''; if ( $doc_root && wp_normalize_path( $start_path ) === wp_normalize_path( $doc_root ) ) { return false; } if ( dirname( $start_path ) === $start_path ) { return false; } $start_path = dirname( $start_path ); } return $start_path; } /* * Set the path class variables. * * @since 1.0.11 * @access private * @return void / private function _path_set() { $frontend = Router::frontend_path(); $frontend_htaccess_search = $this->_htaccess_search( $frontend ); // The existing .htaccess path to be used for frontend .htaccess. $this->frontend_htaccess = $frontend; if ( $frontend_htaccess_search ) { $this->frontend_htaccess = $frontend_htaccess_search; } $this->frontend_htaccess .= '/.htaccess'; $backend = realpath( ABSPATH ); // /home/user/public_html/backend/ if ( $frontend === $backend ) { $this->backend_htaccess = $this->frontend_htaccess; return; } // Backend is a different path. $backend_htaccess_search = $this->_htaccess_search( $backend ); // Found affected .htaccess. if ( $backend_htaccess_search ) { $this->backend_htaccess = $backend_htaccess_search . '/.htaccess'; return; } // Frontend path is the parent of backend path. if ( 0 === stripos( (string) $backend, $frontend . '/' ) ) { // Backend uses frontend htaccess. $this->backend_htaccess = $this->frontend_htaccess; return; } $this->backend_htaccess = $backend . '/.htaccess'; } /* * Get corresponding htaccess path. * * @since 1.1.0 * * @param string $kind Frontend or backend. * @return string Path. / public function htaccess_path( $kind = 'frontend' ) { switch ( $kind ) { case 'backend': $path = $this->backend_htaccess; break; case 'frontend': default: $path = $this->frontend_htaccess; break; } return $path; } /* * Get the content of the rules file. * * NOTE: will throw error if failed. * * @since 1.0.4 * @since 2.9 Used exception for failed reading. * @access public * * @param string $kind 'frontend' or 'backend'. * @return string The file content. * @throws \Exception If the file is not readable or cannot be retrieved. / public function htaccess_read( $kind = 'frontend' ) { $path = $this->htaccess_path( $kind ); if ( ! $path \|\| ! file_exists( $path ) ) { return "\n"; } if ( ! $this->_readable( $kind ) ) { Error::t( 'HTA_R' ); } $content = File::read( $path ); if ( false === $content ) { Error::t( 'HTA_GET' ); } // Remove ^M characters. $content = str_ireplace( "\x0D", '', $content ); return $content; } /* * Try to backup the .htaccess file if we didn't save one before. * * NOTE: will throw error if failed. * * @since 1.0.10 * @access private * * @param string $kind 'frontend' or 'backend'. * @return void * @throws \Exception If backup fails. / private function _htaccess_backup( $kind = 'frontend' ) { $path = $this->htaccess_path( $kind ); if ( ! file_exists( $path ) ) { return; } if ( file_exists( $path . '.bk' ) ) { return; } $res = copy( $path, $path . '.bk' ); // Failed to backup, abort. if ( ! $res ) { Error::t( 'HTA_BK' ); } } /* * Get mobile view rule from htaccess file. * * NOTE: will throw error if failed. * * @since 1.1.0 * * @return string The user agent regex for mobile detection. * @throws \Exception If the rule cannot be found. / public function current_mobile_agents() { $rules = $this->_get_rule_by( self::MARKER_MOBILE ); if ( ! isset( $rules[0] ) ) { Error::t( 'HTA_DNF', self::MARKER_MOBILE ); } $rule = trim( $rules[0] ); $match = substr( $rule, strlen( 'RewriteCond %{HTTP_USER_AGENT} ' ), -strlen( ' [NC]' ) ); if ( ! $match ) { Error::t( 'HTA_DNF', __( 'Mobile Agent Rules', 'litespeed-cache' ) ); } return $match; } /* * Parse rewrites rule from the .htaccess file. * * NOTE: will throw error if failed. * * @since 1.1.0 * @access public * * @param string $kind 'frontend' or 'backend'. * @return string The parsed login-cookie vary rule. * @throws \Exception If the rule cannot be found or is invalid. / public function current_login_cookie( $kind = 'frontend' ) { $rule = $this->_get_rule_by( self::MARKER_LOGIN_COOKIE, $kind ); if ( ! $rule ) { Error::t( 'HTA_DNF', self::MARKER_LOGIN_COOKIE ); } if ( 0 !== strpos( $rule, 'RewriteRule .? - [E=' ) ) { Error::t( 'HTA_LOGIN_COOKIE_INVALID' ); } $rule_cookie = substr( $rule, strlen( 'RewriteRule .? - [E=' ), -1 ); if ( LITESPEED_SERVER_TYPE === 'LITESPEED_SERVER_OLS' ) { $rule_cookie = trim( $rule_cookie, '"' ); } // Drop `Cache-Vary:`. $rule_cookie = substr( $rule_cookie, strlen( 'Cache-Vary:' ) ); return $rule_cookie; } /* * Get rewrite rules based on the marker. * * @since 2.0 * @access private * * @param string $cond Marker constant (e.g. self::MARKER_MOBILE). * @param string $kind 'frontend' or 'backend'. * @return string\|array<int,string>\|false Rule(s) or false if not found. / private function _get_rule_by( $cond, $kind = 'frontend' ) { clearstatcache(); $path = $this->htaccess_path( $kind ); if ( ! $this->_readable( $kind ) ) { return false; } $rules = File::extract_from_markers( $path, self::MARKER ); if ( ! in_array( $cond . self::MARKER_START, $rules, true ) \|\| ! in_array( $cond . self::MARKER_END, $rules, true ) ) { return false; } $key_start = array_search( $cond . self::MARKER_START, $rules, true ); $key_end = array_search( $cond . self::MARKER_END, $rules, true ); if ( false === $key_start \|\| false === $key_end ) { return false; } $results = array_slice( $rules, $key_start + 1, $key_end - $key_start - 1 ); if ( ! $results ) { return false; } if ( count( $results ) === 1 ) { return trim( $results[0] ); } return array_filter( $results ); } /* * Generate browser cache rules. * * @since 1.3 * @access private * * @param array<string,mixed> $cfg The plugin configuration. * @return array<int,string> Rules set. / private function _browser_cache_rules( $cfg ) { /* * Add ttl setting. * * @since 1.6.3 / $id = Base::O_CACHE_TTL_BROWSER; $ttl = $cfg[ $id ]; $rules = array( self::EXPIRES_MODULE_START, 'ExpiresActive on', 'ExpiresByType application/pdf A' . $ttl, 'ExpiresByType image/x-icon A' . $ttl, 'ExpiresByType image/vnd.microsoft.icon A' . $ttl, 'ExpiresByType image/svg+xml A' . $ttl, '', 'ExpiresByType image/jpg A' . $ttl, 'ExpiresByType image/jpeg A' . $ttl, 'ExpiresByType image/png A' . $ttl, 'ExpiresByType image/gif A' . $ttl, 'ExpiresByType image/webp A' . $ttl, 'ExpiresByType image/avif A' . $ttl, '', 'ExpiresByType video/ogg A' . $ttl, 'ExpiresByType audio/ogg A' . $ttl, 'ExpiresByType video/mp4 A' . $ttl, 'ExpiresByType video/webm A' . $ttl, '', 'ExpiresByType text/css A' . $ttl, 'ExpiresByType text/javascript A' . $ttl, 'ExpiresByType application/javascript A' . $ttl, 'ExpiresByType application/x-javascript A' . $ttl, '', 'ExpiresByType application/x-font-ttf A' . $ttl, 'ExpiresByType application/x-font-woff A' . $ttl, 'ExpiresByType application/font-woff A' . $ttl, 'ExpiresByType application/font-woff2 A' . $ttl, 'ExpiresByType application/vnd.ms-fontobject A' . $ttl, 'ExpiresByType font/ttf A' . $ttl, 'ExpiresByType font/otf A' . $ttl, 'ExpiresByType font/woff A' . $ttl, 'ExpiresByType font/woff2 A' . $ttl, '', self::LS_MODULE_END, ); return $rules; } /* * Generate CORS rules for fonts. * * @since 1.5 * @access private * * @return array<int,string> Rules set. / private function _cors_rules() { return array( '<FilesMatch "\.(ttf\|ttc\|otf\|eot\|woff\|woff2\|font\.css)$">', '<IfModule mod_headers.c>', 'Header set Access-Control-Allow-Origin ""', '</IfModule>', '</FilesMatch>', ); } /** * Generate rewrite rules based on settings. * * @since 1.3 * @access private * * @param array<string,mixed> $cfg The settings to be used for rewrite rule. * @return array{0:array<int,string>,1:array<int,string>,2:array<int,string>,3:array<int,string>} Rules arrays [frontend_ls, backend_ls, frontend_nonls, backend_nonls]. / private function _generate_rules( $cfg ) { $new_rules = array(); $new_rules_nonls = array(); $new_rules_backend = array(); $new_rules_backend_nonls = array(); // continual crawler. $new_rules[] = self::MARKER_ASYNC . self::MARKER_START; $new_rules[] = 'RewriteCond %{REQUEST_URI} /wp-admin/admin-ajax\.php'; $new_rules[] = 'RewriteCond %{QUERY_STRING} action=async_litespeed'; $new_rules[] = 'RewriteRule . - [E=noabort:1]'; $new_rules[] = self::MARKER_ASYNC . self::MARKER_END; $new_rules[] = ''; // mobile agents. $id = Base::O_CACHE_MOBILE_RULES; if ( ( ! empty( $cfg[ Base::O_CACHE_MOBILE ] ) \|\| ! empty( $cfg[ Base::O_GUEST ] ) ) && ! empty( $cfg[ $id ] ) ) { $new_rules[] = self::MARKER_MOBILE . self::MARKER_START; $new_rules[] = 'RewriteCond %{HTTP_USER_AGENT} ' . Utility::arr2regex( $cfg[ $id ], true ) . ' [NC]'; $new_rules[] = 'RewriteRule .* - [E=Cache-Control:vary=%{ENV:LSCACHE_VARY_VALUE}+ismobile]'; $new_rules[] = self::MARKER_MOBILE . self::MARKER_END; $new_rules[] = ''; } // nocache cookie. $id = Base::O_CACHE_EXC_COOKIES; if ( ! empty( $cfg[ $id ] ) ) { $new_rules[] = self::MARKER_NOCACHE_COOKIES . self::MARKER_START; $new_rules[] = 'RewriteCond %{HTTP_COOKIE} ' . Utility::arr2regex( $cfg[ $id ], true ); $new_rules[] = 'RewriteRule .* - [E=Cache-Control:no-cache]'; $new_rules[] = self::MARKER_NOCACHE_COOKIES . self::MARKER_END; $new_rules[] = ''; } // nocache user agents. $id = Base::O_CACHE_EXC_USERAGENTS; if ( ! empty( $cfg[ $id ] ) ) { $new_rules[] = self::MARKER_NOCACHE_USER_AGENTS . self::MARKER_START; $new_rules[] = 'RewriteCond %{HTTP_USER_AGENT} ' . Utility::arr2regex( $cfg[ $id ], true ) . ' [NC]'; $new_rules[] = 'RewriteRule .* - [E=Cache-Control:no-cache]'; $new_rules[] = self::MARKER_NOCACHE_USER_AGENTS . self::MARKER_END; $new_rules[] = ''; } // check login cookie. $vary_cookies = $cfg[ Base::O_CACHE_VARY_COOKIES ]; $id = Base::O_CACHE_LOGIN_COOKIE; if ( ! empty( $cfg[ $id ] ) ) { $vary_cookies[] = $cfg[ $id ]; } if ( LITESPEED_SERVER_TYPE === 'LITESPEED_SERVER_OLS' ) { // Need to keep this due to different behavior of OLS when handling response vary header @Sep/22/2018. if ( defined( 'COOKIEHASH' ) ) { $vary_cookies[] = ',wp-postpass_' . COOKIEHASH; } } $vary_cookies = apply_filters( 'litespeed_vary_cookies', $vary_cookies ); // todo: test if response vary header can work in latest OLS, drop the above two lines. // frontend and backend. if ( $vary_cookies ) { $env = 'Cache-Vary:' . implode( ',', $vary_cookies ); $env = '"' . $env . '"'; $new_rules[] = self::MARKER_LOGIN_COOKIE . self::MARKER_START; $new_rules_backend[] = self::MARKER_LOGIN_COOKIE . self::MARKER_START; $new_rules[] = 'RewriteRule .? - [E=' . $env . ']'; $new_rules_backend[] = 'RewriteRule .? - [E=' . $env . ']'; $new_rules[] = self::MARKER_LOGIN_COOKIE . self::MARKER_END; $new_rules_backend[] = self::MARKER_LOGIN_COOKIE . self::MARKER_END; $new_rules[] = ''; } // CORS font rules. $id = Base::O_CDN; if ( ! empty( $cfg[ $id ] ) ) { $new_rules[] = self::MARKER_CORS . self::MARKER_START; $new_rules = array_merge( $new_rules, $this->_cors_rules() ); // todo: network. $new_rules[] = self::MARKER_CORS . self::MARKER_END; $new_rules[] = ''; } // webp/next-gen support. $id = Base::O_IMG_OPTM_WEBP; if ( ! empty( $cfg[ $id ] ) ) { $next_gen_format = 'webp'; if ( 2 === (int) $cfg[ $id ] ) { $next_gen_format = 'avif'; } $new_rules[] = self::MARKER_WEBP . self::MARKER_START; // Check for WebP/AVIF support via HTTP_ACCEPT. $new_rules[] = 'RewriteCond %{HTTP_ACCEPT} image/' . $next_gen_format . ' [OR]'; // Check for iPhone browsers (version > 13). $new_rules[] = 'RewriteCond %{HTTP_USER_AGENT} iPhone\ OS\ (1[4-9]\|[2-9][0-9]) [OR]'; // Check for macOS Safari (version >= 16.4). $new_rules[] = 'RewriteCond %{HTTP_USER_AGENT} Macintosh.Version/((1[7-9]\|[2-9][0-9])\|16\.([4-9]\|[1-9][0-9])) [OR]'; // Check for Firefox (version >= 65). $new_rules[] = 'RewriteCond %{HTTP_USER_AGENT} Firefox/([6-9][0-9]\|[1-9][0-9]{2,})'; // Add vary. $new_rules[] = 'RewriteRule . - [E=Cache-Control:vary=%{ENV:LSCACHE_VARY_VALUE}+webp]'; $new_rules[] = self::MARKER_WEBP . self::MARKER_END; $new_rules[] = ''; } // drop qs support. $id = Base::O_CACHE_DROP_QS; if ( ! empty( $cfg[ $id ] ) ) { $new_rules[] = self::MARKER_DROPQS . self::MARKER_START; foreach ( $cfg[ $id ] as $v ) { $new_rules[] = 'CacheKeyModify -qs:' . $v; } $new_rules[] = self::MARKER_DROPQS . self::MARKER_END; $new_rules[] = ''; } // Browser cache. $id = Base::O_CACHE_BROWSER; if ( ! empty( $cfg[ $id ] ) ) { $new_rules_nonls[] = self::MARKER_BROWSER_CACHE . self::MARKER_START; $new_rules_nonls = array_merge( $new_rules_nonls, $this->_browser_cache_rules( $cfg ) ); $new_rules_nonls[] = self::MARKER_BROWSER_CACHE . self::MARKER_END; $new_rules_nonls[] = ''; $new_rules_backend_nonls[] = self::MARKER_BROWSER_CACHE . self::MARKER_START; $new_rules_backend_nonls = array_merge( $new_rules_backend_nonls, $this->_browser_cache_rules( $cfg ) ); $new_rules_backend_nonls[] = self::MARKER_BROWSER_CACHE . self::MARKER_END; $new_rules_backend_nonls[] = ''; } // Add module wrapper for LiteSpeed rules. if ( $new_rules ) { $new_rules = $this->_wrap_ls_module( $new_rules ); } if ( $new_rules_backend ) { $new_rules_backend = $this->_wrap_ls_module( $new_rules_backend ); } return array( $new_rules, $new_rules_backend, $new_rules_nonls, $new_rules_backend_nonls ); } /** * Add LiteSpeed module wrapper with rewrite on. * * @since 2.1.1 * @access private * * @param array<int,string> $rules Rules to wrap. * @return array<int,string> Wrapped rules. / private function _wrap_ls_module( $rules = array() ) { return array_merge( $this->__rewrite_general, array( self::LS_MODULE_START ), $this->__rewrite_on, array( '' ), $rules, array( self::LS_MODULE_END ) ); } /* * Insert LiteSpeed module wrapper with rewrite on. * * @since 2.1.1 * @access public * @return void / public function insert_ls_wrapper() { $rules = $this->_wrap_ls_module(); $this->_insert_wrapper( $rules ); } /* * Wrap rules with do-not-edit markers. * * @since 1.1.5 * * @param array<int,string>\|false $rules Rules array or false. * @return array<int,string>\|false Wrapped rules, or false if $rules was false. / private function _wrap_do_no_edit( $rules ) { // When clearing rules, don't need DO NOT EDIT msg. if ( false === $rules \|\| ! is_array( $rules ) ) { return $rules; } $rules = array_merge( array( self::LS_MODULE_DONOTEDIT ), $rules, array( self::LS_MODULE_DONOTEDIT ) ); return $rules; } /* * Write to htaccess with rules. * * NOTE: will throw error if failed. * * @since 1.1.0 * @access private * * @param array<int,string>\|false $rules Rules to write. Pass false to clear. * @param string\|false $kind 'frontend' or 'backend'. Defaults to 'frontend'. * @param string\|false $marker Marker name. Defaults to self::MARKER. * @return void * @throws \Exception If write fails. / private function _insert_wrapper( $rules = array(), $kind = false, $marker = false ) { if ( 'backend' !== $kind ) { $kind = 'frontend'; } // Default marker is LiteSpeed marker `LSCACHE`. if ( false === $marker ) { $marker = self::MARKER; } $this->_htaccess_backup( $kind ); File::insert_with_markers( $this->htaccess_path( $kind ), $this->_wrap_do_no_edit( $rules ), $marker, true ); } /* * Update rewrite rules based on setting. * * NOTE: will throw error if failed. * * @since 1.3 * @access public * * @param array<string,mixed> $cfg Plugin configuration. * @return bool True on success. * @throws \Exception When automatic update fails (provides manual instructions). / public function update( $cfg ) { list( $frontend_rules, $backend_rules, $frontend_rules_nonls, $backend_rules_nonls ) = $this->_generate_rules( $cfg ); // Check frontend content. list( $rules, $rules_nonls ) = $this->_extract_rules(); // Check Non-LiteSpeed rules. if ( $this->_wrap_do_no_edit( $frontend_rules_nonls ) !== $rules_nonls ) { Debug2::debug( '[Rules] Update non-ls frontend rules' ); // Need to update frontend htaccess. try { $this->_insert_wrapper( $frontend_rules_nonls, false, self::MARKER_NONLS ); } catch ( \Exception $e ) { $manual_guide_codes = $this->_rewrite_codes_msg( $this->frontend_htaccess, $frontend_rules_nonls, self::MARKER_NONLS ); Debug2::debug( '[Rules] Update Failed' ); throw new \Exception( $manual_guide_codes ); // phpcs:ignore WordPress.Security.EscapeOutput.ExceptionNotEscaped -- Message is for admin display. } } // Check LiteSpeed rules. if ( $this->_wrap_do_no_edit( $frontend_rules ) !== $rules ) { Debug2::debug( '[Rules] Update frontend rules' ); // Need to update frontend htaccess. try { $this->_insert_wrapper( $frontend_rules ); } catch ( \Exception $e ) { Debug2::debug( '[Rules] Update Failed' ); $manual_guide_codes = $this->_rewrite_codes_msg( $this->frontend_htaccess, $frontend_rules ); throw new \Exception( $manual_guide_codes ); // phpcs:ignore WordPress.Security.EscapeOutput.ExceptionNotEscaped -- Message is for admin display. } } if ( $this->frontend_htaccess !== $this->backend_htaccess ) { list( $rules, $rules_nonls ) = $this->_extract_rules( 'backend' ); // Check Non-LiteSpeed rules for backend. if ( $this->_wrap_do_no_edit( $backend_rules_nonls ) !== $rules_nonls ) { Debug2::debug( '[Rules] Update non-ls backend rules' ); // Need to update backend htaccess. try { $this->_insert_wrapper( $backend_rules_nonls, 'backend', self::MARKER_NONLS ); } catch ( \Exception $e ) { Debug2::debug( '[Rules] Update Failed' ); $manual_guide_codes = $this->_rewrite_codes_msg( $this->backend_htaccess, $backend_rules_nonls, self::MARKER_NONLS ); throw new \Exception( $manual_guide_codes ); // phpcs:ignore WordPress.Security.EscapeOutput.ExceptionNotEscaped -- Message is for admin display. } } // Check backend content. if ( $this->_wrap_do_no_edit( $backend_rules ) !== $rules ) { Debug2::debug( '[Rules] Update backend rules' ); // Need to update backend htaccess. try { $this->_insert_wrapper( $backend_rules, 'backend' ); } catch ( \Exception $e ) { Debug2::debug( '[Rules] Update Failed' ); $manual_guide_codes = $this->_rewrite_codes_msg( $this->backend_htaccess, $backend_rules ); throw new \Exception( $manual_guide_codes ); // phpcs:ignore WordPress.Security.EscapeOutput.ExceptionNotEscaped -- Message is for admin display. } } } return true; } /* * Get existing rewrite rules. * * NOTE: will throw error if failed. * * @since 1.3 * @access private * * @param string $kind Frontend or backend .htaccess file. * @return array{0:array<int,string>,1:array<int,string>} A tuple of [ls_rules, nonls_rules]. * @throws \Exception If file is not readable. / private function _extract_rules( $kind = 'frontend' ) { clearstatcache(); $path = $this->htaccess_path( $kind ); if ( ! $this->_readable( $kind ) ) { Error::t( 'E_HTA_R' ); } $rules = File::extract_from_markers( $path, self::MARKER ); $rules_nonls = File::extract_from_markers( $path, self::MARKER_NONLS ); return array( $rules, $rules_nonls ); } /* * Output the msg with rules plain data for manual insert. * * @since 1.1.5 * * @param string $file The target file path. * @param array<int,string> $rules The rules to be inserted. * @param string\|false $marker Optional marker name. Defaults to LiteSpeed's marker. * @return string The final message (HTML) to output. / private function _rewrite_codes_msg( $file, $rules, $marker = false ) { return sprintf( / translators: 1: file path, 2: code block / __( '<p>Please add/replace the following codes into the beginning of %1$s:</p> %2$s', 'litespeed-cache' ), esc_html( $file ), '<textarea style="width:100%;" rows="10" readonly>' . esc_textarea( $this->_wrap_rules_with_marker( $rules, $marker ) ) . '</textarea>' ); } /* * Generate rules plain data for manual insert. * * @since 1.1.5 * * @param array<int,string>\|false $rules Rules to wrap or false. * @param string\|false $marker Optional marker name. Defaults to LiteSpeed's marker. * @return string The plain text of the rules with markers. / private function _wrap_rules_with_marker( $rules, $marker = false ) { // Default marker is LiteSpeed marker `LSCACHE`. if ( false === $marker ) { $marker = self::MARKER; } $start_marker = "# BEGIN {$marker}"; $end_marker = "# END {$marker}"; $new_file_data = implode( "\n", array_merge( array( $start_marker ), $this->_wrap_do_no_edit( $rules ), array( $end_marker ) ) ); return $new_file_data; } /* * Clear the rules file of any changes added by the plugin specifically. * * @since 1.0.4 * @access public * * @return void */ public function clear_rules() { $this->_insert_wrapper( false ); // Use false to avoid do-not-edit msg. // Clear non ls rules. $this->_insert_wrapper( false, false, self::MARKER_NONLS ); if ( $this->frontend_htaccess !== $this->backend_htaccess ) { $this->_insert_wrapper( false, 'backend' ); $this->_insert_wrapper( false, 'backend', self::MARKER_NONLS ); } } }

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