X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;ds=sidebyside;f=src%2FProtocol%2FActivityPub.php;h=c3168f5509f98b3f5fc7ab6477f81cc32bb97d7e;hb=dbad46c37847f894312c0f1318a21f5ce3606cb0;hp=3a8a5e5b12ab82c7552b86d72eb1fd4b0aed1816;hpb=8b344141da6dcc6b01b498637131822fadab24ff;p=friendica.git

diff --git a/src/Protocol/ActivityPub.php b/src/Protocol/ActivityPub.php
index 3a8a5e5b12..c3168f5509 100644
--- a/src/Protocol/ActivityPub.php
+++ b/src/Protocol/ActivityPub.php
@@ -1,7 +1,24 @@
 <?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;
@@ -12,7 +29,8 @@ 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/
@@ -57,8 +75,8 @@ class ActivityPub
 	 */
 	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');
 	}
 
 	/**
@@ -173,7 +191,7 @@ class ActivityPub
 	 */
 	public static function fetchOutbox($url, $uid)
 	{
-		$data = self::fetchContent($url);
+		$data = self::fetchContent($url, $uid);
 		if (empty($data)) {
 			return;
 		}
@@ -195,6 +213,37 @@ class ActivityPub
 		}
 	}
 
+	/**
+	 * 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
 	 *