pixelfed/app/Services/FetchCacheService.php

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2024-03-02 11:21:04 +00:00
<?php
namespace App\Services;
use App\Util\ActivityPub\Helpers;
use Illuminate\Http\Client\ConnectionException;
use Illuminate\Http\Client\RequestException;
use Illuminate\Support\Facades\Cache;
use Illuminate\Support\Facades\Http;
class FetchCacheService
{
const CACHE_KEY = 'pf:fetch_cache_service:getjson:';
public static function getJson($url, $verifyCheck = true, $ttl = 3600, $allowRedirects = true)
{
$vc = $verifyCheck ? 'vc1:' : 'vc0:';
$ar = $allowRedirects ? 'ar1:' : 'ar0';
$key = self::CACHE_KEY.sha1($url).':'.$vc.$ar.$ttl;
if (Cache::has($key)) {
return false;
}
if ($verifyCheck) {
if (! Helpers::validateUrl($url)) {
Cache::put($key, 1, $ttl);
return false;
}
}
$headers = [
'User-Agent' => '(Pixelfed/'.config('pixelfed.version').'; +'.config('app.url').')',
];
if ($allowRedirects) {
$options = [
'allow_redirects' => [
'max' => 2,
'strict' => true,
],
];
} else {
$options = [
'allow_redirects' => false,
];
}
try {
$res = Http::withOptions($options)
->retry(3, function (int $attempt, $exception) {
return $attempt * 500;
})
->acceptJson()
->withHeaders($headers)
->timeout(40)
->get($url);
} catch (RequestException $e) {
Cache::put($key, 1, $ttl);
return false;
} catch (ConnectionException $e) {
Cache::put($key, 1, $ttl);
return false;
} catch (Exception $e) {
Cache::put($key, 1, $ttl);
return false;
}
if (! $res->ok()) {
Cache::put($key, 1, $ttl);
return false;
}
return $res->json();
}
}