<?php /** * This file is part of RSS-Bridge, a PHP project capable of generating RSS and * Atom feeds for websites that don't have one. * * For the full license information, please view the UNLICENSE file distributed * with this source code. * * @package Core * @license http://unlicense.org/ UNLICENSE * @link https://github.com/rss-bridge/rss-bridge */ class FormatFactory { private $folder; private $formatNames; public function __construct(string $folder = PATH_LIB_FORMATS) { $this->folder = $folder; // create format names foreach (scandir($this->folder) as $file) { if (preg_match('/^([^.]+)Format\.php$/U', $file, $m)) { $this->formatNames[] = $m[1]; } } } /** * @throws \InvalidArgumentException * @param string $name The name of the format e.g. "Atom", "Mrss" or "Json" */ public function create(string $name): FormatInterface { if (! preg_match('/^[a-zA-Z0-9-]*$/', $name)) { throw new \InvalidArgumentException('Format name invalid!'); } $sanitizedName = $this->sanitizeFormatName($name); if ($sanitizedName === null) { throw new \InvalidArgumentException(sprintf('Unknown format given `%s`', $name)); } $className = '\\' . $sanitizedName . 'Format'; return new $className(); } public function getFormatNames(): array { return $this->formatNames; } protected function sanitizeFormatName(string $name) { $name = ucfirst(strtolower($name)); // Trim trailing '.php' if exists if (preg_match('/(.+)(?:\.php)/', $name, $matches)) { $name = $matches[1]; } // Trim trailing 'Format' if exists if (preg_match('/(.+)(?:Format)/i', $name, $matches)) { $name = $matches[1]; } if (in_array($name, $this->formatNames)) { return $name; } return null; } }