mirror of
https://github.com/friendica/friendica
synced 2024-12-27 02:00:15 +00:00
113 lines
4.1 KiB
PHP
113 lines
4.1 KiB
PHP
<?php
|
|
/**
|
|
* @copyright Copyright (C) 2020, Friendica
|
|
*
|
|
* @license GNU AGPL version 3 or any later version
|
|
*
|
|
* This program 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.
|
|
*
|
|
* This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
|
|
*
|
|
*/
|
|
|
|
namespace Friendica\Module;
|
|
|
|
use Friendica\BaseModule;
|
|
use Friendica\Core\System;
|
|
use Friendica\Database\DBA;
|
|
use Friendica\DI;
|
|
use Friendica\Model\Contact;
|
|
use Friendica\Model\Item;
|
|
use Friendica\Network\HTTPException;
|
|
use Friendica\Protocol\ActivityPub;
|
|
use Friendica\Util\HTTPSignature;
|
|
use Friendica\Util\Network;
|
|
|
|
/**
|
|
* ActivityPub Objects
|
|
*/
|
|
class Objects extends BaseModule
|
|
{
|
|
public static function rawContent(array $parameters = [])
|
|
{
|
|
if (empty($parameters['guid'])) {
|
|
throw new HTTPException\BadRequestException();
|
|
}
|
|
|
|
if (!ActivityPub::isRequest()) {
|
|
DI::baseUrl()->redirect(str_replace('objects/', 'display/', DI::args()->getQueryString()));
|
|
}
|
|
|
|
$item = Item::selectFirst(['id', 'uid', 'origin', 'author-link', 'changed', 'private', 'psid', 'gravity'],
|
|
['guid' => $parameters['guid']], ['order' => ['origin' => true]]);
|
|
|
|
if (!DBA::isResult($item)) {
|
|
throw new HTTPException\NotFoundException();
|
|
}
|
|
|
|
$validated = in_array($item['private'], [Item::PUBLIC, Item::UNLISTED]);
|
|
|
|
if (!$validated) {
|
|
$requester = HTTPSignature::getSigner('', $_SERVER);
|
|
if (!empty($requester) && $item['origin']) {
|
|
$requester_id = Contact::getIdForURL($requester, $item['uid']);
|
|
if (!empty($requester_id)) {
|
|
$permissionSets = DI::permissionSet()->selectByContactId($requester_id, $item['uid']);
|
|
if (!empty($permissionSets)) {
|
|
$psid = array_merge($permissionSets->column('id'),
|
|
[DI::permissionSet()->getIdFromACL($item['uid'], '', '', '', '')]);
|
|
$validated = in_array($item['psid'], $psid);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Valid items are original post or posted from this node (including in the case of a forum)
|
|
if (!$validated || !$item['origin'] && (parse_url($item['author-link'], PHP_URL_HOST) != parse_url(DI::baseUrl()->get(), PHP_URL_HOST))) {
|
|
throw new HTTPException\NotFoundException();
|
|
}
|
|
|
|
$etag = md5($parameters['guid'] . '-' . $item['changed']);
|
|
$last_modified = $item['changed'];
|
|
Network::checkEtagModified($etag, $last_modified);
|
|
|
|
if (empty($parameters['activity']) && ($item['gravity'] != GRAVITY_ACTIVITY)) {
|
|
$activity = ActivityPub\Transmitter::createActivityFromItem($item['id'], true);
|
|
$activity['type'] = $activity['type'] == 'Update' ? 'Create' : $activity['type'];
|
|
|
|
// Only display "Create" activity objects here, no reshares or anything else
|
|
if (empty($activity['object']) || ($activity['type'] != 'Create')) {
|
|
throw new HTTPException\NotFoundException();
|
|
}
|
|
|
|
$data = ['@context' => ActivityPub::CONTEXT];
|
|
$data = array_merge($data, $activity['object']);
|
|
} elseif (empty($parameters['activity']) || in_array($parameters['activity'],
|
|
['Create', 'Announce', 'Update', 'Like', 'Dislike', 'Accept', 'Reject',
|
|
'TentativeAccept', 'Follow', 'Add'])) {
|
|
$data = ActivityPub\Transmitter::createActivityFromItem($item['id']);
|
|
if (empty($data)) {
|
|
throw new HTTPException\NotFoundException();
|
|
}
|
|
if (!empty($parameters['activity']) && ($parameters['activity'] != 'Create')) {
|
|
$data['type'] = $parameters['activity'];
|
|
$data['id'] = str_replace('/Create', '/' . $parameters['activity'], $data['id']);
|
|
}
|
|
} else {
|
|
throw new HTTPException\NotFoundException();
|
|
}
|
|
|
|
// Relaxed CORS header for public items
|
|
header('Access-Control-Allow-Origin: *');
|
|
System::jsonExit($data, 'application/activity+json');
|
|
}
|
|
}
|