<?php
/**
- * @file src/Protocol/ActivityPub.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\Protocol;
use Friendica\Util\JsonLD;
use Friendica\Util\Network;
use Friendica\Core\Protocol;
use Friendica\Model\APContact;
+use Friendica\Model\User;
use Friendica\Util\HTTPSignature;
/**
- * @brief ActivityPub Protocol class
+ * ActivityPub Protocol class
+ *
* The ActivityPub Protocol is a message exchange protocol defined by the W3C.
* https://www.w3.org/TR/activitypub/
* https://www.w3.org/TR/activitystreams-core/
*/
public static function isRequest()
{
- return stristr(defaults($_SERVER, 'HTTP_ACCEPT', ''), 'application/activity+json') ||
- stristr(defaults($_SERVER, 'HTTP_ACCEPT', ''), 'application/ld+json');
+ return stristr($_SERVER['HTTP_ACCEPT'] ?? '', 'application/activity+json') ||
+ stristr($_SERVER['HTTP_ACCEPT'] ?? '', 'application/ld+json');
}
/**
return $content;
}
+ private static function getAccountType($apcontact)
+ {
+ $accounttype = -1;
+
+ switch($apcontact['type']) {
+ case 'Person':
+ $accounttype = User::ACCOUNT_TYPE_PERSON;
+ break;
+ case 'Organization':
+ $accounttype = User::ACCOUNT_TYPE_ORGANISATION;
+ break;
+ case 'Service':
+ $accounttype = User::ACCOUNT_TYPE_NEWS;
+ break;
+ case 'Group':
+ $accounttype = User::ACCOUNT_TYPE_COMMUNITY;
+ break;
+ case 'Application':
+ $accounttype = User::ACCOUNT_TYPE_RELAY;
+ break;
+ }
+
+ return $accounttype;
+ }
+
/**
* Fetches a profile from the given url into an array that is compatible to Probe::uri
*
$profile['url'] = $apcontact['url'];
$profile['addr'] = $apcontact['addr'];
$profile['alias'] = $apcontact['alias'];
+ $profile['following'] = $apcontact['following'];
+ $profile['followers'] = $apcontact['followers'];
+ $profile['inbox'] = $apcontact['inbox'];
+ $profile['outbox'] = $apcontact['outbox'];
+ $profile['sharedinbox'] = $apcontact['sharedinbox'];
$profile['photo'] = $apcontact['photo'];
- // $profile['community']
+ $profile['account-type'] = self::getAccountType($apcontact);
+ $profile['community'] = ($profile['account-type'] == User::ACCOUNT_TYPE_COMMUNITY);
// $profile['keywords']
// $profile['location']
$profile['about'] = $apcontact['about'];
$profile['poll'] = $apcontact['outbox'];
$profile['pubkey'] = $apcontact['pubkey'];
$profile['baseurl'] = $apcontact['baseurl'];
+ $profile['gsid'] = $apcontact['gsid'];
// Remove all "null" fields
foreach ($profile as $field => $content) {
*/
public static function fetchOutbox($url, $uid)
{
- $data = self::fetchContent($url);
+ $data = self::fetchContent($url, $uid);
if (empty($data)) {
return;
}
ActivityPub\Receiver::processActivity($ldactivity, '', $uid, true);
}
}
+
+ /**
+ * Fetch items from AP endpoints
+ *
+ * @param string $url Address of the endpoint
+ * @param integer $uid Optional user id
+ * @return array Endpoint items
+ */
+ public static function fetchItems(string $url, int $uid = 0)
+ {
+ $data = self::fetchContent($url, $uid);
+ if (empty($data)) {
+ return [];
+ }
+
+ if (!empty($data['orderedItems'])) {
+ $items = $data['orderedItems'];
+ } elseif (!empty($data['first']['orderedItems'])) {
+ $items = $data['first']['orderedItems'];
+ } elseif (!empty($data['first']) && is_string($data['first']) && ($data['first'] != $url)) {
+ return self::fetchItems($data['first'], $uid);
+ } else {
+ return [];
+ }
+
+ if (!empty($data['next']) && is_string($data['next'])) {
+ $items = array_merge($items, self::fetchItems($data['next'], $uid));
+ }
+
+ return $items;
+ }
+
+ /**
+ * Checks if the given contact url does support ActivityPub
+ *
+ * @param string $url profile url
+ * @param boolean $update true = always update, false = never update, null = update when not found or outdated
+ * @return boolean
+ * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+ * @throws \ImagickException
+ */
+ public static function isSupportedByContactUrl($url, $update = null)
+ {
+ return !empty(APContact::getByURL($url, $update));
+ }
}