<?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\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');
}
/**
{
$apcontact = APContact::getByURL($url, $update);
if (empty($apcontact)) {
- return false;
+ return [];
}
$profile = ['network' => Protocol::ACTIVITYPUB];
$profile['notify'] = $apcontact['inbox'];
$profile['poll'] = $apcontact['outbox'];
$profile['pubkey'] = $apcontact['pubkey'];
+ $profile['subscribe'] = $apcontact['subscribe'];
$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));
+ }
}