Merge pull request #6908 from annando/sig-auth

[friendica.git] / src / Protocol / ActivityPub.php

diff --git a/src/Protocol/ActivityPub.php b/src/Protocol/ActivityPub.php
index 9ccd90eed64c1e4bcaed7ca8ef7768d8bccf0670..bf8fed94c6078652f0ef9dcede2feabe5c427567 100644 (file)
--- a/src/Protocol/ActivityPub.php
+++ b/src/Protocol/ActivityPub.php
@@ -4,26 +4,11 @@
  */
 namespace Friendica\Protocol;
 
-use Friendica\Database\DBA;
-use Friendica\Core\System;
-use Friendica\BaseObject;
+use Friendica\Util\JsonLD;
 use Friendica\Util\Network;
-use Friendica\Util\HTTPSignature;
 use Friendica\Core\Protocol;
-use Friendica\Model\Conversation;
-use Friendica\Model\Contact;
 use Friendica\Model\APContact;
-use Friendica\Model\Item;
-use Friendica\Model\Profile;
-use Friendica\Model\Term;
-use Friendica\Model\User;
-use Friendica\Util\DateTimeFormat;
-use Friendica\Util\Crypto;
-use Friendica\Content\Text\BBCode;
-use Friendica\Content\Text\HTML;
-use Friendica\Util\JsonLD;
-use Friendica\Util\LDSignature;
-use Friendica\Core\Config;
+use Friendica\Util\HTTPSignature;
 
 /**
  * @brief ActivityPub Protocol class
@@ -41,24 +26,31 @@ use Friendica\Core\Config;
  * Mastodon implementation of supported activities:
  * https://github.com/tootsuite/mastodon/blob/master/app/lib/activitypub/activity.rb#L26
  *
+ * Funkwhale:
+ * http://docs-funkwhale-funkwhale-549-music-federation-documentation.preview.funkwhale.audio/federation/index.html
+ *
  * To-do:
  * - Polling the outboxes for missing content?
+ *
+ * Missing parts from DFRN:
+ * - Public Forum
+ * - Private Forum
+ * - Relocation
  */
 class ActivityPub
 {
        const PUBLIC_COLLECTION = 'https://www.w3.org/ns/activitystreams#Public';
        const CONTEXT = ['https://www.w3.org/ns/activitystreams', 'https://w3id.org/security/v1',
                ['vcard' => 'http://www.w3.org/2006/vcard/ns#',
+               'dfrn' => 'http://purl.org/macgirvin/dfrn/1.0/',
                'diaspora' => 'https://diasporafoundation.org/ns/',
                'manuallyApprovesFollowers' => 'as:manuallyApprovesFollowers',
                'sensitive' => 'as:sensitive', 'Hashtag' => 'as:Hashtag']];
        const ACCOUNT_TYPES = ['Person', 'Organization', 'Service', 'Group', 'Application'];
-       const CONTENT_TYPES = ['Note', 'Article', 'Video', 'Image'];
-       const ACTIVITY_TYPES = ['Like', 'Dislike', 'Accept', 'Reject', 'TentativeAccept'];
        /**
-        * @brief Checks if the web request is done for the AP protocol
+        * Checks if the web request is done for the AP protocol
         *
-        * @return is it AP?
+        * @return bool is it AP?
         */
        public static function isRequest()
        {
@@ -69,17 +61,29 @@ class ActivityPub
        /**
         * Fetches ActivityPub content from the given url
         *
-        * @param string $url content url
+        * @param string  $url content url
+        * @param integer $uid User ID for the signature
         * @return array
+        * @throws \Friendica\Network\HTTPException\InternalServerErrorException
         */
-       public static function fetchContent($url)
+       public static function fetchContent($url, $uid = 0)
        {
-               $ret = Network::curl($url, false, $redirects, ['accept_content' => 'application/activity+json, application/ld+json']);
-               if (!$ret['success'] || empty($ret['body'])) {
+               if (!empty($uid)) {
+                       return HTTPSignature::fetch($url, $uid);
+               }
+
+               $curlResult = Network::curl($url, false, $redirects, ['accept_content' => 'application/activity+json, application/ld+json']);
+               if (!$curlResult->isSuccess() || empty($curlResult->getBody())) {
+                       return false;
+               }
+
+               $content = json_decode($curlResult->getBody(), true);
+
+               if (empty($content) || !is_array($content)) {
                        return false;
                }
 
-               return json_decode($ret['body'], true);
+               return $content;
        }
 
        /**
@@ -87,6 +91,8 @@ class ActivityPub
         *
         * @param string $url profile url
         * @return array
+        * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+        * @throws \ImagickException
         */
        public static function probeProfile($url)
        {
@@ -124,10 +130,11 @@ class ActivityPub
        }
 
        /**
-        * @brief 
+        * Fetches activities from the outbox of a given profile and processes it
         *
-        * @param $url
+        * @param string  $url
         * @param integer $uid User ID
+        * @throws \Friendica\Network\HTTPException\InternalServerErrorException
         */
        public static function fetchOutbox($url, $uid)
        {
@@ -148,7 +155,8 @@ class ActivityPub
                }
 
                foreach ($items as $activity) {
-                       ActivityPub\Receiver::processActivity($activity, '', $uid, true);
+                       $ldactivity = JsonLD::compact($activity);
+                       ActivityPub\Receiver::processActivity($ldactivity, '', $uid, true);
                }
        }
 }