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<?php /** * CodeIgniter * * An open source application development framework for PHP * * This content is released under the MIT License (MIT) * * Copyright (c) 2014-2019 British Columbia Institute of Technology * Copyright (c) 2019-2020 CodeIgniter Foundation * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. * * @package CodeIgniter * @author CodeIgniter Dev Team * @copyright 2008-2014 EllisLab, Inc. (https://ellislab.com/) * @copyright 2019-2020 CodeIgniter Foundation * @license https://opensource.org/licenses/MIT MIT License * @link https://codeigniter.com * @since Version 1.0.0 * @filesource */ /** * CodeIgniter File System Helpers * * @package CodeIgniter */ // ------------------------------------------------------------------------ if (! function_exists('directory_map')) { /** * Create a Directory Map * * Reads the specified directory and builds an array * representation of it. Sub-folders contained with the * directory will be mapped as well. * * @param string $source_dir Path to source * @param integer $directory_depth Depth of directories to traverse * (0 = fully recursive, 1 = current dir, etc) * @param boolean $hidden Whether to show hidden files * * @return array */ function directory_map(string $source_dir, int $directory_depth = 0, bool $hidden = false): array { try { $fp = opendir($source_dir); $fileData = []; $new_depth = $directory_depth - 1; $source_dir = rtrim($source_dir, DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR; while (false !== ($file = readdir($fp))) { // Remove '.', '..', and hidden files [optional] if ($file === '.' || $file === '..' || ($hidden === false && $file[0] === '.')) { continue; } is_dir($source_dir . $file) && $file .= DIRECTORY_SEPARATOR; if (($directory_depth < 1 || $new_depth > 0) && is_dir($source_dir . $file)) { $fileData[$file] = directory_map($source_dir . $file, $new_depth, $hidden); } else { $fileData[] = $file; } } closedir($fp); return $fileData; } catch (\Throwable $e) { return []; } } } // ------------------------------------------------------------------------ if (! function_exists('write_file')) { /** * Write File * * Writes data to the file specified in the path. * Creates a new file if non-existent. * * @param string $path File path * @param string $data Data to write * @param string $mode fopen() mode (default: 'wb') * * @return boolean */ function write_file(string $path, string $data, string $mode = 'wb'): bool { try { $fp = fopen($path, $mode); flock($fp, LOCK_EX); for ($result = $written = 0, $length = strlen($data); $written < $length; $written += $result) { if (($result = fwrite($fp, substr($data, $written))) === false) { break; } } flock($fp, LOCK_UN); fclose($fp); return is_int($result); } catch (\Throwable $e) { return false; } } } // ------------------------------------------------------------------------ if (! function_exists('delete_files')) { /** * Delete Files * * Deletes all files contained in the supplied directory path. * Files must be writable or owned by the system in order to be deleted. * If the second parameter is set to true, any directories contained * within the supplied base directory will be nuked as well. * * @param string $path File path * @param boolean $del_dir Whether to delete any directories found in the path * @param boolean $htdocs Whether to skip deleting .htaccess and index page files * @param boolean $hidden Whether to include hidden files (files beginning with a period) * * @return boolean */ function delete_files(string $path, bool $del_dir = false, bool $htdocs = false, bool $hidden = false): bool { $path = realpath($path) ?: $path; $path = rtrim($path, DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR; try { foreach (new RecursiveIteratorIterator( new RecursiveDirectoryIterator($path, RecursiveDirectoryIterator::SKIP_DOTS), RecursiveIteratorIterator::CHILD_FIRST ) as $object) { $filename = $object->getFilename(); if (! $hidden && $filename[0] === '.') { continue; } elseif (! $htdocs || ! preg_match('/^(\.htaccess|index\.(html|htm|php)|web\.config)$/i', $filename)) { $isDir = $object->isDir(); if ($isDir && $del_dir) { @rmdir($object->getPathname()); continue; } if (! $isDir) { @unlink($object->getPathname()); } } } return true; } catch (\Throwable $e) { return false; } } } // ------------------------------------------------------------------------ if (! function_exists('get_filenames')) { /** * Get Filenames * * Reads the specified directory and builds an array containing the filenames. * Any sub-folders contained within the specified path are read as well. * * @param string $source_dir Path to source * @param boolean|null $include_path Whether to include the path as part of the filename; false for no path, null for a relative path, true for full path * @param boolean $hidden Whether to include hidden files (files beginning with a period) * * @return array */ function get_filenames(string $source_dir, ?bool $include_path = false, bool $hidden = false): array { $files = []; $source_dir = realpath($source_dir) ?: $source_dir; $source_dir = rtrim($source_dir, DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR; try { foreach (new RecursiveIteratorIterator( new RecursiveDirectoryIterator($source_dir, RecursiveDirectoryIterator::SKIP_DOTS), RecursiveIteratorIterator::SELF_FIRST ) as $name => $object) { $basename = pathinfo($name, PATHINFO_BASENAME); if (! $hidden && $basename[0] === '.') { continue; } elseif ($include_path === false) { $files[] = $basename; } elseif (is_null($include_path)) { $files[] = str_replace($source_dir, '', $name); } else { $files[] = $name; } } } catch (\Throwable $e) { return []; } sort($files); return $files; } } // -------------------------------------------------------------------- if (! function_exists('get_dir_file_info')) { /** * Get Directory File Information * * Reads the specified directory and builds an array containing the filenames, * filesize, dates, and permissions * * Any sub-folders contained within the specified path are read as well. * * @param string $source_dir Path to source * @param boolean $top_level_only Look only at the top level directory specified? * @param boolean $recursion Internal variable to determine recursion status - do not use in calls * * @return array */ function get_dir_file_info(string $source_dir, bool $top_level_only = true, bool $recursion = false): array { static $fileData = []; $relative_path = $source_dir; try { $fp = @opendir($source_dir); { // reset the array and make sure $source_dir has a trailing slash on the initial call if ($recursion === false) { $fileData = []; $source_dir = rtrim(realpath($source_dir), DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR; } // Used to be foreach (scandir($source_dir, 1) as $file), but scandir() is simply not as fast while (false !== ($file = readdir($fp))) { if (is_dir($source_dir . $file) && $file[0] !== '.' && $top_level_only === false) { get_dir_file_info($source_dir . $file . DIRECTORY_SEPARATOR, $top_level_only, true); } elseif ($file[0] !== '.') { $fileData[$file] = get_file_info($source_dir . $file); $fileData[$file]['relative_path'] = $relative_path; } } closedir($fp); return $fileData; } } catch (\Throwable $fe) { return []; } } } // -------------------------------------------------------------------- if (! function_exists('get_file_info')) { /** * Get File Info * * Given a file and path, returns the name, path, size, date modified * Second parameter allows you to explicitly declare what information you want returned * Options are: name, server_path, size, date, readable, writable, executable, fileperms * Returns false if the file cannot be found. * * @param string $file Path to file * @param mixed $returned_values Array or comma separated string of information returned * * @return array|null */ function get_file_info(string $file, $returned_values = ['name', 'server_path', 'size', 'date']) { if (! is_file($file)) { return null; } if (is_string($returned_values)) { $returned_values = explode(',', $returned_values); } foreach ($returned_values as $key) { switch ($key) { case 'name': $fileInfo['name'] = basename($file); break; case 'server_path': $fileInfo['server_path'] = $file; break; case 'size': $fileInfo['size'] = filesize($file); break; case 'date': $fileInfo['date'] = filemtime($file); break; case 'readable': $fileInfo['readable'] = is_readable($file); break; case 'writable': $fileInfo['writable'] = is_really_writable($file); break; case 'executable': $fileInfo['executable'] = is_executable($file); break; case 'fileperms': $fileInfo['fileperms'] = fileperms($file); break; } } return $fileInfo; } } // -------------------------------------------------------------------- if (! function_exists('symbolic_permissions')) { /** * Symbolic Permissions * * Takes a numeric value representing a file's permissions and returns * standard symbolic notation representing that value * * @param integer $perms Permissions * @return string */ function symbolic_permissions(int $perms): string { if (($perms & 0xC000) === 0xC000) { $symbolic = 's'; // Socket } elseif (($perms & 0xA000) === 0xA000) { $symbolic = 'l'; // Symbolic Link } elseif (($perms & 0x8000) === 0x8000) { $symbolic = '-'; // Regular } elseif (($perms & 0x6000) === 0x6000) { $symbolic = 'b'; // Block special } elseif (($perms & 0x4000) === 0x4000) { $symbolic = 'd'; // Directory } elseif (($perms & 0x2000) === 0x2000) { $symbolic = 'c'; // Character special } elseif (($perms & 0x1000) === 0x1000) { $symbolic = 'p'; // FIFO pipe } else { $symbolic = 'u'; // Unknown } // Owner $symbolic .= (($perms & 0x0100) ? 'r' : '-') . (($perms & 0x0080) ? 'w' : '-') . (($perms & 0x0040) ? (($perms & 0x0800) ? 's' : 'x' ) : (($perms & 0x0800) ? 'S' : '-')); // Group $symbolic .= (($perms & 0x0020) ? 'r' : '-') . (($perms & 0x0010) ? 'w' : '-') . (($perms & 0x0008) ? (($perms & 0x0400) ? 's' : 'x' ) : (($perms & 0x0400) ? 'S' : '-')); // World $symbolic .= (($perms & 0x0004) ? 'r' : '-') . (($perms & 0x0002) ? 'w' : '-') . (($perms & 0x0001) ? (($perms & 0x0200) ? 't' : 'x' ) : (($perms & 0x0200) ? 'T' : '-')); return $symbolic; } } // -------------------------------------------------------------------- if (! function_exists('octal_permissions')) { /** * Octal Permissions * * Takes a numeric value representing a file's permissions and returns * a three character string representing the file's octal permissions * * @param integer $perms Permissions * @return string */ function octal_permissions(int $perms): string { return substr(sprintf('%o', $perms), -3); } } // ------------------------------------------------------------------------ if (! function_exists('set_realpath')) { /** * Set Realpath * * @param string $path * @param boolean $check_existence Checks to see if the path exists * * @return string */ function set_realpath(string $path, bool $check_existence = false): string { // Security check to make sure the path is NOT a URL. No remote file inclusion! if (preg_match('#^(http:\/\/|https:\/\/|www\.|ftp)#i', $path) || filter_var($path, FILTER_VALIDATE_IP) === $path) { throw new InvalidArgumentException('The path you submitted must be a local server path, not a URL'); } // Resolve the path if (realpath($path) !== false) { $path = realpath($path); } elseif ($check_existence && ! is_dir($path) && ! is_file($path)) { throw new InvalidArgumentException('Not a valid path: ' . $path); } // Add a trailing slash, if this is a directory return is_dir($path) ? rtrim($path, DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR : $path; } } |
Commits for paulgoughbooks_old/trunk/system/Helpers/filesystem_helper.php
Revision | Author | Commited | Message |
---|---|---|---|
2 | tporter | Tue 03 Nov, 2020 08:50:21 +0000 | Migration of Paul Goughs Books site to Codeignitor 4 |