118 lines
3.5 KiB
PHP
118 lines
3.5 KiB
PHP
<?php
|
|
|
|
declare(strict_types=1);
|
|
|
|
/**
|
|
* @copyright 2021 Ad Aures
|
|
* @license https://www.gnu.org/licenses/agpl-3.0.en.html AGPL3
|
|
* @link https://castopod.org/
|
|
*/
|
|
|
|
namespace Modules\Fediverse;
|
|
|
|
use CodeIgniter\HTTP\CURLRequest;
|
|
use CodeIgniter\HTTP\ResponseInterface;
|
|
use CodeIgniter\HTTP\URI;
|
|
use CodeIgniter\I18n\Time;
|
|
use Config\Services;
|
|
use Modules\Fediverse\Core\Activity;
|
|
use phpseclib\Crypt\RSA;
|
|
|
|
class ActivityRequest
|
|
{
|
|
protected CURLRequest $request;
|
|
|
|
protected URI $uri;
|
|
|
|
protected ?Activity $activity = null;
|
|
|
|
/**
|
|
* @var array<string, mixed>
|
|
*/
|
|
protected array $options = [];
|
|
|
|
public function __construct(string $uri, ?string $activityPayload = null)
|
|
{
|
|
$this->request = Services::curlrequest();
|
|
|
|
if ($activityPayload !== null) {
|
|
$this->request->setBody($activityPayload);
|
|
}
|
|
|
|
$this->options = [
|
|
'headers' => [
|
|
'Content-Type' => 'application/activity+json',
|
|
'Accept' => 'application/activity+json',
|
|
'User-Agent' => 'Castopod/' . CP_VERSION . '; +' . base_url('', 'https'),
|
|
// TODO: outgoing and incoming requests
|
|
],
|
|
];
|
|
|
|
$this->uri = new URI($uri);
|
|
}
|
|
|
|
public function post(): void
|
|
{
|
|
// outgoing message to Fediverse instance
|
|
$this->request->post((string) $this->uri, $this->options);
|
|
}
|
|
|
|
public function get(): ResponseInterface
|
|
{
|
|
return $this->request->get((string) $this->uri, $this->options);
|
|
}
|
|
|
|
public function getDomain(): string
|
|
{
|
|
return $this->uri->getHost() .
|
|
($this->uri->getPort() ? ':' . $this->uri->getPort() : '');
|
|
}
|
|
|
|
public function sign(string $keyId, string $privateKey): void
|
|
{
|
|
$rsa = new RSA();
|
|
$rsa->loadKey($privateKey);
|
|
$rsa->setHash('sha256');
|
|
$rsa->setSignatureMode(RSA::SIGNATURE_PKCS1);
|
|
|
|
$path =
|
|
$this->uri->getPath() .
|
|
($this->uri->getQuery() !== '' ? "?{$this->uri->getQuery()}" : '');
|
|
$host = $this->uri->getHost();
|
|
$date = Time::now('GMT')->format('D, d M Y H:i:s T');
|
|
$digest = 'SHA-256=' . base64_encode($this->getBodyDigest());
|
|
$contentType = $this->options['headers']['Content-Type'];
|
|
$contentLength = (string) strlen((string) $this->request->getBody());
|
|
$userAgent = 'Castopod/' . CP_VERSION . '; +' . base_url('', 'https');
|
|
|
|
$plainText = "(request-target): post {$path}\nhost: {$host}\ndate: {$date}\ndigest: {$digest}\ncontent-type: {$contentType}\ncontent-length: {$contentLength}\nuser-agent: {$userAgent}";
|
|
|
|
$signature = $rsa->sign($plainText);
|
|
|
|
$signatureHeader =
|
|
'keyId="' .
|
|
$keyId .
|
|
'",algorithm="rsa-sha256",headers="(request-target) host date digest content-type content-length user-agent",signature="' .
|
|
base64_encode($signature) .
|
|
'"';
|
|
|
|
$this->options = [
|
|
'headers' => [
|
|
'Content-Type' => $contentType,
|
|
'Content-Length' => $contentLength,
|
|
'Authorization' => "Signature {$signatureHeader}",
|
|
'Signature' => $signatureHeader,
|
|
'Host' => $host,
|
|
'Date' => $date,
|
|
'User-Agent' => $userAgent,
|
|
'Digest' => $digest,
|
|
],
|
|
];
|
|
}
|
|
|
|
protected function getBodyDigest(): string
|
|
{
|
|
return hash('sha256', (string) $this->request->getBody(), true);
|
|
}
|
|
}
|