43 lines
1 KiB
PHP
43 lines
1 KiB
PHP
<?php
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namespace App\Twig;
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use Twig\Extension\AbstractExtension;
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use Twig\TwigFunction;
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class MagnetExtension extends AbstractExtension
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{
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private const MAGNET_TEMPLATE = 'magnet:?xt=urn:btih:%s&dn=%s';
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/** @var string[] Array of public trackers which will be added to the magnet link */
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private $publicTrackers = [];
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/**
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* @param string[] $publicTrackers
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*/
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public function __construct(array $publicTrackers = [])
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{
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$this->publicTrackers = $publicTrackers;
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}
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public function getFunctions(): array
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{
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return [
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new TwigFunction('magnet', [$this, 'createMagnet']),
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];
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}
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public function createMagnet(string $name, string $infoHash, bool $addPublicTrackers = true): string
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{
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$magnetUrl = sprintf(self::MAGNET_TEMPLATE, urlencode($infoHash), urlencode($name));
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if ($addPublicTrackers) {
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foreach ($this->publicTrackers as $tracker) {
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$magnetUrl .= '&tr='.urlencode($tracker);
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}
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}
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return $magnetUrl;
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}
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} |