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pixelfed/app/Services/ActivityPubFetchService.php

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<?php
namespace App\Services;
use Zttp\Zttp;
use App\Profile;
use App\Util\ActivityPub\Helpers;
use App\Util\ActivityPub\HttpSignature;
class ActivityPubFetchService
{
public $signed = true;
public $actor;
public $url;
public $headers = [
'Accept' => 'application/activity+json, application/json',
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'User-Agent' => '(Pixelfed/'.config('pixelfed.version').'; +'.config('app.url').')'
];
public static function queue()
{
return new self;
}
public function signed($signed = true)
{
$this->signed = $signed;
return $this;
}
public function actor($profile)
{
$this->actor = $profile;
return $this;
}
public function url($url)
{
if(!Helpers::validateUrl($url)) {
throw new \Exception('Invalid URL');
}
$this->url = $url;
return $this;
}
public function get()
{
if($this->signed == true && $this->actor == null) {
throw new \Exception('Cannot sign request without actor');
}
return $this->signedRequest();
}
protected function signedRequest()
{
$this->headers = HttpSignature::sign($this->actor, $this->url, false, $this->headers);
return Zttp::withHeaders($this->headers)->get($this->url)->body();
}
}