gnu-social/plugins/WebHooks/WebHooks.php

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<?php
declare(strict_types = 1);
// {{{ License
// This file is part of GNU social - https://www.gnu.org/software/social
//
// GNU social is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// GNU social is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with GNU social. If not, see <http://www.gnu.org/licenses/>.
// }}}
namespace Plugin\WebHooks;
use App\Core\DB\DB;
use App\Core\Event;
use App\Core\HTTPClient;
use App\Core\Log;
use App\Core\Modules\Plugin;
use App\Core\Queue\Queue;
use App\Core\Router\RouteLoader;
use App\Entity\Activity;
use App\Entity\Actor;
use App\Util\Exception\ServerException;
use Exception;
use Functional as F;
use Plugin\WebHooks\Controller as C;
use Plugin\WebHooks\Entity as E;
use Symfony\Component\HttpFoundation\Request;
class WebHooks extends Plugin
{
public const controller_route = 'webhook';
public function onAddRoute(RouteLoader $r)
{
$r->connect(self::controller_route, '/webhook-settings', C\WebHooks::class);
}
public function onPopulateSettingsTabs(Request $request, string $section, array &$tabs): bool
{
if ($section === 'others') {
$tabs[] = [
'title' => 'Web Hooks',
'desc' => 'Add hooks that run when an internal event occurs, allowing your third party resource to react',
'id' => 'settings-webhooks',
'controller' => C\WebHooks::setup(),
];
}
return Event::next;
}
public function onNewNotificationEnd(Actor $sender, Activity $activity, array $effective_targets, ?string $reason)
{
foreach ($effective_targets as $actor) {
$target = DB::findOneBy(E\WebHook::class, ['actor_id' => $actor->getId(), 'event' => 'notifications'], return_null: true)?->getTarget();
if (!\is_null($target)) {
Queue::enqueue(['notifications', $target, $actor, [$sender, $activity, $effective_targets, $reason]], queue: 'webhook');
}
}
return Event::next;
}
/**
* @param array<Actor $sender, Activity $activity, array $effective_targets, ?string $reason> $args
*/
public function onQueueWebhook(string $type, string $target, Actor $actor, array $args)
{
switch ($type) {
case 'notifications':
[$sender, $activity, $targets, $reason] = $args;
$data = [
'type' => 'notification',
'activity' => '%activity%',
'actor' => ['id' => $sender->getId(), 'nickname' => $sender->getNickname()],
'targets' => F\map(array_values($targets), fn (Actor $actor) => ['id' => $actor->getId(), 'nickname' => $actor->getNickname()]),
'reason' => $reason,
];
// toJson(Activity) is already JSON (hopefully that's obvious :') ), so replace it after converting the rest to JSON
$json = str_replace('"activity":"%activity%"', '"activity":' . \Plugin\ActivityPub\Util\Model\Activity::toJson($activity), json_encode($data));
Log::debug("WebHooks: POST {$target} on behalf of actor {$actor->getId()} ({$actor->getNickname()})", [$data, ['json' => $json]]);
try {
$method = Common::config('plugin_webhooks', 'method');
HTTPClient::{$method}($target, ['body' => $json, 'headers' => ['content-type' => 'application/json', 'user-agent' => 'GNU social']]);
} catch (Exception $e) {
Log::debug("WebHooks: Failed POST {$target} on behalf of actor {$actor->getId()} ({$actor->getNickname()})", [$e]);
}
return Event::stop;
default:
throw new ServerException("Webhook notification handler for event {$type} not implemented");
}
}
}