mirror of https://github.com/danoloan10/rss-bridge
73 lines
2.0 KiB
PHP
73 lines
2.0 KiB
PHP
<?php
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/**
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* This file is part of RSS-Bridge, a PHP project capable of generating RSS and
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* Atom feeds for websites that don't have one.
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*
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* For the full license information, please view the UNLICENSE file distributed
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* with this source code.
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*
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* @package Core
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* @license http://unlicense.org/ UNLICENSE
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* @link https://github.com/rss-bridge/rss-bridge
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*/
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class FormatFactory
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{
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private $folder;
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private $formatNames;
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public function __construct(string $folder = PATH_LIB_FORMATS)
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{
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$this->folder = $folder;
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// create format names
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foreach (scandir($this->folder) as $file) {
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if (preg_match('/^([^.]+)Format\.php$/U', $file, $m)) {
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$this->formatNames[] = $m[1];
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}
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}
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}
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/**
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* @throws \InvalidArgumentException
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* @param string $name The name of the format e.g. "Atom", "Mrss" or "Json"
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*/
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public function create(string $name): FormatInterface
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{
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if (! preg_match('/^[a-zA-Z0-9-]*$/', $name)) {
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throw new \InvalidArgumentException('Format name invalid!');
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}
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$sanitizedName = $this->sanitizeFormatName($name);
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if ($sanitizedName === null) {
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throw new \InvalidArgumentException(sprintf('Unknown format given `%s`', $name));
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}
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$className = '\\' . $sanitizedName . 'Format';
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return new $className();
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}
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public function getFormatNames(): array
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{
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return $this->formatNames;
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}
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protected function sanitizeFormatName(string $name)
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{
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$name = ucfirst(strtolower($name));
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// Trim trailing '.php' if exists
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if (preg_match('/(.+)(?:\.php)/', $name, $matches)) {
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$name = $matches[1];
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}
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// Trim trailing 'Format' if exists
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if (preg_match('/(.+)(?:Format)/i', $name, $matches)) {
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$name = $matches[1];
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}
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if (in_array($name, $this->formatNames)) {
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return $name;
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}
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return null;
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}
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}
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