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Editing: file.cls.php
<?php // phpcs:ignoreFile /** * LiteSpeed File Operator Library Class * Append/Replace content to a file * * @since 1.1.0 */ namespace LiteSpeed; defined('WPINC') || exit(); class File { const MARKER = 'LiteSpeed Operator'; /** * Detect if an URL is 404 * * @since 3.3 */ public static function is_404( $url ) { $response = wp_safe_remote_get($url); $code = wp_remote_retrieve_response_code($response); if ($code == 404) { return true; } return false; } /** * Delete folder * * @since 2.1 */ public static function rrmdir( $dir ) { $files = array_diff(scandir($dir), array( '.', '..' )); foreach ($files as $file) { is_dir("$dir/$file") ? self::rrmdir("$dir/$file") : unlink("$dir/$file"); } return rmdir($dir); } public static function count_lines( $filename ) { if (!file_exists($filename)) { return 0; } $file = new \SplFileObject($filename); $file->seek(PHP_INT_MAX); return $file->key() + 1; } /** * Read data from file * * @since 1.1.0 * @param string $filename * @param int $start_line * @param int $lines */ public static function read( $filename, $start_line = null, $lines = null ) { if (!file_exists($filename)) { return ''; } if (!is_readable($filename)) { return false; } if ($start_line !== null) { $res = array(); $file = new \SplFileObject($filename); $file->seek($start_line); if ($lines === null) { while (!$file->eof()) { $res[] = rtrim($file->current(), "\n"); $file->next(); } } else { for ($i = 0; $i < $lines; $i++) { if ($file->eof()) { break; } $res[] = rtrim($file->current(), "\n"); $file->next(); } } unset($file); return $res; } $content = file_get_contents($filename); $content = self::remove_zero_space($content); return $content; } /** * Append data to file * * @since 1.1.5 * @access public * @param string $filename * @param string $data * @param boolean $mkdir * @param boolean $silence Used to avoid WP's functions are used */ public static function append( $filename, $data, $mkdir = false, $silence = true ) { return self::save($filename, $data, $mkdir, true, $silence); } /** * Save data to file * * @since 1.1.0 * @param string $filename * @param string $data * @param boolean $mkdir * @param boolean $append If the content needs to be appended * @param boolean $silence Used to avoid WP's functions are used */ public static function save( $filename, $data, $mkdir = false, $append = false, $silence = true ) { if (is_null($filename)) { return $silence ? false : __('Filename is empty!', 'litespeed-cache'); } $error = false; $folder = dirname($filename); // mkdir if folder does not exist if (!file_exists($folder)) { if (!$mkdir) { return $silence ? false : sprintf(__('Folder does not exist: %s', 'litespeed-cache'), $folder); } set_error_handler('litespeed_exception_handler'); try { mkdir($folder, 0755, true); // Create robots.txt file to forbid search engine indexes if (!file_exists(LITESPEED_STATIC_DIR . '/robots.txt')) { file_put_contents(LITESPEED_STATIC_DIR . '/robots.txt', "User-agent: *\nDisallow: /\n"); } } catch (\ErrorException $ex) { return $silence ? false : sprintf(__('Can not create folder: %1$s. Error: %2$s', 'litespeed-cache'), $folder, $ex->getMessage()); } restore_error_handler(); } if (!file_exists($filename)) { if (!is_writable($folder)) { return $silence ? false : sprintf(__('Folder is not writable: %s.', 'litespeed-cache'), $folder); } set_error_handler('litespeed_exception_handler'); try { touch($filename); } catch (\ErrorException $ex) { return $silence ? false : sprintf(__('File %s is not writable.', 'litespeed-cache'), $filename); } restore_error_handler(); } elseif (!is_writable($filename)) { return $silence ? false : sprintf(__('File %s is not writable.', 'litespeed-cache'), $filename); } $data = self::remove_zero_space($data); $ret = file_put_contents($filename, $data, $append ? FILE_APPEND : LOCK_EX); if ($ret === false) { return $silence ? false : sprintf(__('Failed to write to %s.', 'litespeed-cache'), $filename); } return true; } /** * Remove Unicode zero-width space <200b><200c> * * @since 2.1.2 * @since 2.9 changed to public */ public static function remove_zero_space( $content ) { if (is_array($content)) { $content = array_map(__CLASS__ . '::remove_zero_space', $content); return $content; } // Remove UTF-8 BOM if present if (substr($content, 0, 3) === "\xEF\xBB\xBF") { $content = substr($content, 3); } $content = str_replace("\xe2\x80\x8b", '', $content); $content = str_replace("\xe2\x80\x8c", '', $content); $content = str_replace("\xe2\x80\x8d", '', $content); return $content; } /** * Appends an array of strings into a file (.htaccess ), placing it between * BEGIN and END markers. * * Replaces existing marked info. Retains surrounding * data. Creates file if none exists. * * @param string $filename Filename to alter. * @param string $marker The marker to alter. * @param array|string|false $insertion The new content to insert. * @param bool $prepend Prepend insertion if not exist. * @return bool True on write success, false on failure. */ public static function insert_with_markers( $filename, $insertion = false, $marker = false, $prepend = false ) { if (!$marker) { $marker = self::MARKER; } if (!$insertion) { $insertion = array(); } return self::_insert_with_markers($filename, $marker, $insertion, $prepend); // todo: capture exceptions } /** * Return wrapped block data with marker * * @param string $insertion * @param string $marker * @return string The block data */ public static function wrap_marker_data( $insertion, $marker = false ) { if (!$marker) { $marker = self::MARKER; } $start_marker = "# BEGIN {$marker}"; $end_marker = "# END {$marker}"; $new_data = implode("\n", array_merge(array( $start_marker ), $insertion, array( $end_marker ))); return $new_data; } /** * Touch block data from file, return with marker * * @param string $filename * @param string $marker * @return string The current block data */ public static function touch_marker_data( $filename, $marker = false ) { if (!$marker) { $marker = self::MARKER; } $result = self::_extract_from_markers($filename, $marker); if (!$result) { return false; } $start_marker = "# BEGIN {$marker}"; $end_marker = "# END {$marker}"; $new_data = implode("\n", array_merge(array( $start_marker ), $result, array( $end_marker ))); return $new_data; } /** * Extracts strings from between the BEGIN and END markers in the .htaccess file. * * @param string $filename * @param string $marker * @return array An array of strings from a file (.htaccess ) from between BEGIN and END markers. */ public static function extract_from_markers( $filename, $marker = false ) { if (!$marker) { $marker = self::MARKER; } return self::_extract_from_markers($filename, $marker); } /** * Extracts strings from between the BEGIN and END markers in the .htaccess file. * * @param string $filename * @param string $marker * @return array An array of strings from a file (.htaccess ) from between BEGIN and END markers. */ private static function _extract_from_markers( $filename, $marker ) { $result = array(); if (!file_exists($filename)) { return $result; } if ($markerdata = explode("\n", implode('', file($filename)))) { $state = false; foreach ($markerdata as $markerline) { if (strpos($markerline, '# END ' . $marker) !== false) { $state = false; } if ($state) { $result[] = $markerline; } if (strpos($markerline, '# BEGIN ' . $marker) !== false) { $state = true; } } } return array_map('trim', $result); } /** * Inserts an array of strings into a file (.htaccess ), placing it between BEGIN and END markers. * * Replaces existing marked info. Retains surrounding data. Creates file if none exists. * * NOTE: will throw error if failed * * @since 3.0- * @since 3.0 Throw errors if failed * @access private */ private static function _insert_with_markers( $filename, $marker, $insertion, $prepend = false ) { if (!file_exists($filename)) { if (!is_writable(dirname($filename))) { Error::t('W', dirname($filename)); } set_error_handler('litespeed_exception_handler'); try { touch($filename); } catch (\ErrorException $ex) { Error::t('W', $filename); } restore_error_handler(); } elseif (!is_writable($filename)) { Error::t('W', $filename); } if (!is_array($insertion)) { $insertion = explode("\n", $insertion); } $start_marker = "# BEGIN {$marker}"; $end_marker = "# END {$marker}"; $fp = fopen($filename, 'r+'); if (!$fp) { Error::t('W', $filename); } // Attempt to get a lock. If the filesystem supports locking, this will block until the lock is acquired. flock($fp, LOCK_EX); $lines = array(); while (!feof($fp)) { $lines[] = rtrim(fgets($fp), "\r\n"); } // Split out the existing file into the preceding lines, and those that appear after the marker $pre_lines = $post_lines = $existing_lines = array(); $found_marker = $found_end_marker = false; foreach ($lines as $line) { if (!$found_marker && false !== strpos($line, $start_marker)) { $found_marker = true; continue; } elseif (!$found_end_marker && false !== strpos($line, $end_marker)) { $found_end_marker = true; continue; } if (!$found_marker) { $pre_lines[] = $line; } elseif ($found_marker && $found_end_marker) { $post_lines[] = $line; } else { $existing_lines[] = $line; } } // Check to see if there was a change if ($existing_lines === $insertion) { flock($fp, LOCK_UN); fclose($fp); return true; } // Check if need to prepend data if not exist if ($prepend && !$post_lines) { // Generate the new file data $new_file_data = implode("\n", array_merge(array( $start_marker ), $insertion, array( $end_marker ), $pre_lines)); } else { // Generate the new file data $new_file_data = implode("\n", array_merge($pre_lines, array( $start_marker ), $insertion, array( $end_marker ), $post_lines)); } // Write to the start of the file, and truncate it to that length fseek($fp, 0); $bytes = fwrite($fp, $new_file_data); if ($bytes) { ftruncate($fp, ftell($fp)); } fflush($fp); flock($fp, LOCK_UN); fclose($fp); return (bool) $bytes; } }
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