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<?php /** * The htaccess rewrite rule operation class * * * @since 1.0.0 * @package LiteSpeed * @subpackage LiteSpeed/inc * @author LiteSpeed Technologies <info@litespeedtech.com> */ namespace LiteSpeed; defined('WPINC') || exit(); class Htaccess extends Root { private $frontend_htaccess = null; private $_default_frontend_htaccess = null; private $backend_htaccess = null; private $_default_backend_htaccess = null; private $theme_htaccess = null; // Not used yet private $frontend_htaccess_readable = false; private $frontend_htaccess_writable = false; private $backend_htaccess_readable = false; private $backend_htaccess_writable = false; private $theme_htaccess_readable = false; private $theme_htaccess_writable = false; private $__rewrite_on; 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 ###'; const RW_PATTERN_RES = '/.*/[^/]*(responsive|css|js|dynamic|loader|fonts)\.php'; /** * 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; $frontend_htaccess = defined('LITESPEED_CFG_HTACCESS') ? LITESPEED_CFG_HTACCESS : false; if ($frontend_htaccess && substr($frontend_htaccess, -10) === '/.htaccess') { $this->frontend_htaccess = $frontend_htaccess; } $backend_htaccess = defined('LITESPEED_CFG_HTACCESS_BACKEND') ? LITESPEED_CFG_HTACCESS_BACKEND : false; if ($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)) { $this->frontend_htaccess_writable = true; } $this->__rewrite_on = array( self::REWRITE_ON, 'CacheLookup on', 'RewriteRule .* - [E=Cache-Control:no-autoflush]', 'RewriteRule ' . preg_quote(LITESPEED_DATA_FOLDER) . '/debug/.*\.log$ - [F,L]', 'RewriteRule ' . preg_quote(self::CONF_FILE) . ' - [F,L]', ); // 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)) { $this->backend_htaccess_writable = true; } } } /** * Get if htaccess file is readable * * @since 1.1.0 * @return string */ private function _readable($kind = 'frontend') { if ($kind === 'frontend') { return $this->frontend_htaccess_readable; } if ($kind === 'backend') { return $this->backend_htaccess_readable; } } /** * Get if htaccess file is writable * * @since 1.1.0 * @return string */ public function writable($kind = 'frontend') { if ($kind === 'frontend') { return $this->frontend_htaccess_writable; } if ($kind === 'backend') { return $this->backend_htaccess_writable; } } /** * Get frontend htaccess path * * @since 1.1.0 * @return string */ public static function get_frontend_htaccess($show_default = false) { if ($show_default) { return self::cls()->_default_frontend_htaccess; } return self::cls()->frontend_htaccess; } /** * Get backend htaccess path * * @since 1.1.0 * @return string */ public static function get_backend_htaccess($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 $start_path and going up directories until it hits DOCUMENT_ROOT. * * As dirname() strips the ending '/', paths passed in must exclude the final '/' * * @since 1.0.11 * @access private */ private function _htaccess_search($start_path) { while (!file_exists($start_path . '/.htaccess')) { if ($start_path === '/' || !$start_path) { return false; } if (!empty($_SERVER['DOCUMENT_ROOT']) && wp_normalize_path($start_path) === wp_normalize_path($_SERVER['DOCUMENT_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 */ 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_htaccess_search ?: $frontend) . '/.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 = $backend_htaccess_search . '/.htaccess'; return; } // Frontend path is the parent of backend path if (stripos($backend, $frontend . '/') === 0) { // backend use 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 $path; } /** * Get the content of the rules file. * * NOTE: will throw error if failed * * @since 1.0.4 * @since 2.9 Used exception for failed reading * @access public */ public function htaccess_read($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 ($content === false) { Error::t('HTA_GET'); } // Remove ^M characters. $content = str_ireplace("\x0D", '', $content); return $content; } /** * Try to backup the .htaccess file if we didn't save one before. * * NOTE: will throw error if failed * * @since 1.0.10 * @access private */ private function _htaccess_backup($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 */ 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]); // 'RewriteCond %{HTTP_USER_AGENT} ' . Utility::arr2regex( $cfg[ $id ], true ) . ' [NC]'; $match = substr($rule, strlen('RewriteCond %{HTTP_USER_AGENT} '), -strlen(' [NC]')); if (!$match) { Error::t('HTA_DNF', __('Mobile Agent Rules', 'litespeed-cache')); } return $match; } /** * Parse rewrites rule from the .htaccess file. * * NOTE: will throw error if failed * * @since 1.1.0 * @access public */ public function current_login_cookie($kind = 'frontend') { $rule = $this->_get_rule_by(self::MARKER_LOGIN_COOKIE, $kind); if (!$rule) { Error::t('HTA_DNF', self::MARKER_LOGIN_COOKIE); } if (strpos($rule, 'RewriteRule .? - [E=') !== 0) { 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 $rule_cookie; } /** * Get rewrite rules based on the marker * * @since 2.0 * @access private */ private function _get_rule_by($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, $rules) || !in_array($cond . self::MARKER_END, $rules)) { return false; } $key_start = array_search($cond . self::MARKER_START, $rules); $key_end = array_search($cond . self::MARKER_END, $rules); if ($key_start === false || $key_end === false) { 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($results); } /** * Generate browser cache rules * * @since 1.3 * @access private * @return array Rules set */ private function _browser_cache_rules($cfg) { /** * Add ttl setting * @since 1.6.3 */ $id = Base::O_CACHE_TTL_BROWSER; $ttl = $cfg[$id]; $rules = array( self::EXPIRES_MODULE_START, // '<FilesMatch "\.(pdf|ico|svg|xml|jpg|jpeg|png|gif|webp|ogg|mp4|webm|js|css|woff|woff2|ttf|eot)(\.gz)?$">', '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 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, '', // '</FilesMatch>', self::LS_MODULE_END, ); return $rules; } /** * Generate CORS rules for fonts * * @since 1.5 * @access private * @return array Rules set */ private function _cors_rules() { return array( '<FilesMatch "\.(ttf|ttc|otf|eot|woff|woff2|font\.css)$">', '<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 $cfg The settings to be used for rewrite rule * @return array Rules array */ private function _generate_rules($cfg) { $new_rules = array(); $new_rules_nonls = array(); $new_rules_backend = array(); $new_rules_backend_nonls = array(); # continual crawler // $id = Base::O_CRAWLER; // if (!empty($cfg[$id])) { $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[] = ''; } // caching php resource $id = Base::O_CACHE_RES; if (!empty($cfg[$id])) { $new_rules[] = $new_rules_backend[] = self::MARKER_CACHE_RESOURCE . self::MARKER_START; $new_rules[] = $new_rules_backend[] = 'RewriteRule ' . LSCWP_CONTENT_FOLDER . self::RW_PATTERN_RES . ' - [E=cache-control:max-age=3600]'; $new_rules[] = $new_rules_backend[] = self::MARKER_CACHE_RESOURCE . self::MARKER_END; $new_rules[] = $new_rules_backend[] = ''; } // 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); // if (LITESPEED_SERVER_TYPE === 'LITESPEED_SERVER_OLS') { // } $env = '"' . $env . '"'; $new_rules[] = $new_rules_backend[] = self::MARKER_LOGIN_COOKIE . self::MARKER_START; $new_rules[] = $new_rules_backend[] = 'RewriteRule .? - [E=' . $env . ']'; $new_rules[] = $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 support $id = Base::O_IMG_OPTM_WEBP; if (!empty($cfg[$id]) || (!empty($cfg[Base::O_GUEST]) && !empty($cfg[Base::O_GUEST_OPTM]))) { $new_rules[] = self::MARKER_WEBP . self::MARKER_START; $new_rules[] = 'RewriteCond %{HTTP_ACCEPT} "image/webp"'; $new_rules[] = 'RewriteRule .* - [E=Cache-Control:vary=%{ENV:LSCACHE_VARY_VALUE}+webp]'; $new_rules[] = 'RewriteCond %{HTTP_USER_AGENT} iPhone.*Version/(\d{2}).*Safari'; $new_rules[] = 'RewriteCond %1 >13'; $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[] = $new_rules_backend_nonls[] = self::MARKER_BROWSER_CACHE . self::MARKER_START; $new_rules_nonls = array_merge($new_rules_nonls, $this->_browser_cache_rules($cfg)); $new_rules_backend_nonls = array_merge($new_rules_backend_nonls, $this->_browser_cache_rules($cfg)); $new_rules_nonls[] = $new_rules_backend_nonls[] = self::MARKER_BROWSER_CACHE . self::MARKER_END; $new_rules_nonls[] = ''; } // Add module wrapper for LiteSpeed rules if ($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, $new_rules_backend_nonls); } /** * Add LitSpeed module wrapper with rewrite on * * @since 2.1.1 * @access private */ private function _wrap_ls_module($rules = array()) { return array_merge(array(self::LS_MODULE_START), $this->__rewrite_on, array(''), $rules, array(self::LS_MODULE_END)); } /** * Insert LitSpeed module wrapper with rewrite on * * @since 2.1.1 * @access public */ public function insert_ls_wrapper() { $rules = $this->_wrap_ls_module(); $this->_insert_wrapper($rules); } /** * wrap rules with module on info * * @since 1.1.5 * @param array $rules * @return array wrapped rules with module info */ private function _wrap_do_no_edit($rules) { // When to clear rules, don't need DONOTEDIT msg if ($rules === false || !is_array($rules)) { return $rules; } $rules = array_merge(array(self::LS_MODULE_DONOTEDIT), $rules, array(self::LS_MODULE_DONOTEDIT)); return $rules; } /** * Write to htaccess with rules * * NOTE: will throw error if failed * * @since 1.1.0 * @access private */ private function _insert_wrapper($rules = array(), $kind = false, $marker = false) { if ($kind != 'backend') { $kind = 'frontend'; } // Default marker is LiteSpeed marker `LSCACHE` if ($marker === false) { $marker = self::MARKER; } $this->_htaccess_backup($kind); File::insert_with_markers($this->htaccess_path($kind), $this->_wrap_do_no_edit($rules), $marker, true); } /** * Update rewrite rules based on setting * * NOTE: will throw error if failed * * @since 1.3 * @access public */ public function update($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); } } // 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); } } 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 frontend 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); } } // 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); } } } return true; } /** * Get existing rewrite rules * * NOTE: will throw error if failed * * @since 1.3 * @access private * @param string $kind Frontend or backend .htaccess file */ private function _extract_rules($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 * @param array $rules * @return string final msg to output */ private function _rewrite_codes_msg($file, $rules, $marker = false) { return sprintf( __('<p>Please add/replace the following codes into the beginning of %1$s:</p> %2$s', 'litespeed-cache'), $file, '<textarea style="width:100%;" rows="10" readonly>' . htmlspecialchars($this->_wrap_rules_with_marker($rules, $marker)) . '</textarea>' ); } /** * Generate rules plain data for manual insert * * @since 1.1.5 */ private function _wrap_rules_with_marker($rules, $marker = false) { // Default marker is LiteSpeed marker `LSCACHE` if ($marker === false) { $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 */ 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); } } }