use Friendica\Model\Conversation;
use Friendica\Model\Contact;
use Friendica\Model\Item;
+use Friendica\Model\Profile;
use Friendica\Model\Term;
use Friendica\Model\User;
use Friendica\Util\DateTimeFormat;
use Friendica\Content\Text\HTML;
use Friendica\Util\JsonLD;
use Friendica\Util\LDSignature;
+use Friendica\Core\Config;
/**
* @brief ActivityPub Protocol class
* Digest: https://tools.ietf.org/html/rfc5843
* https://tools.ietf.org/html/draft-cavage-http-signatures-10#ref-15
*
+ * Mastodon implementation of supported activities:
+ * https://github.com/tootsuite/mastodon/blob/master/app/lib/activitypub/activity.rb#L26
+ *
* To-do:
*
* Receiver:
- * - Activities: Update, Delete (Activities/Notes)
+ * - Activities: Update (Notes, Person), Delete (Person, Activities, Notes)
* - Object Types: Person, Tombstome
*
* Transmitter:
- * - Activities: Announce
+ * - Activities: Announce, Update (Person)
* - Object Tyoes: Person
*
* General:
- * - Endpoints: Outbox, Follower, Following
- * - General cleanup
* - Queueing unsucessful deliveries
+ * - Event support
+ * - Polling the outboxes for missing content?
*/
class ActivityPub
{
const PUBLIC = 'https://www.w3.org/ns/activitystreams#Public';
+ const CONTEXT = ['https://www.w3.org/ns/activitystreams', 'https://w3id.org/security/v1',
+ ['ostatus' => 'http://ostatus.org#', 'uuid' => 'http://schema.org/identifier',
+ 'sensitive' => 'as:sensitive', 'Hashtag' => 'as:Hashtag',
+ 'atomUri' => 'ostatus:atomUri', 'conversation' => 'ostatus:conversation',
+ 'inReplyToAtomUri' => 'ostatus:inReplyToAtomUri']];
public static function isRequest()
{
stristr(defaults($_SERVER, 'HTTP_ACCEPT', ''), 'application/ld+json');
}
+ public static function getFollowers($owner, $page = null)
+ {
+ $condition = ['rel' => [Contact::FOLLOWER, Contact::FRIEND], 'network' => Protocol::NATIVE_SUPPORT, 'uid' => $owner['uid'],
+ 'self' => false, 'hidden' => false, 'archive' => false, 'pending' => false];
+ $count = DBA::count('contact', $condition);
+
+ $data = ['@context' => self::CONTEXT];
+ $data['id'] = System::baseUrl() . '/followers/' . $owner['nickname'];
+ $data['type'] = 'OrderedCollection';
+ $data['totalItems'] = $count;
+
+ // When we hide our friends we will only show the pure number but don't allow more.
+ $profile = Profile::getProfileForUser($owner['uid']);
+ if (!empty($profile['hide-friends'])) {
+ return $data;
+ }
+
+ if (empty($page)) {
+ $data['first'] = System::baseUrl() . '/followers/' . $owner['nickname'] . '?page=1';
+ } else {
+ $list = [];
+
+ $contacts = DBA::select('contact', ['url'], $condition, ['limit' => [($page - 1) * 100, 100]]);
+ while ($contact = DBA::fetch($contacts)) {
+ $list[] = $contact['url'];
+ }
+
+ if (!empty($list)) {
+ $data['next'] = System::baseUrl() . '/followers/' . $owner['nickname'] . '?page=' . ($page + 1);
+ }
+
+ $data['partOf'] = System::baseUrl() . '/followers/' . $owner['nickname'];
+
+ $data['orderedItems'] = $list;
+ }
+
+ return $data;
+ }
+
+ public static function getFollowing($owner, $page = null)
+ {
+ $condition = ['rel' => [Contact::SHARING, Contact::FRIEND], 'network' => Protocol::NATIVE_SUPPORT, 'uid' => $owner['uid'],
+ 'self' => false, 'hidden' => false, 'archive' => false, 'pending' => false];
+ $count = DBA::count('contact', $condition);
+
+ $data = ['@context' => self::CONTEXT];
+ $data['id'] = System::baseUrl() . '/following/' . $owner['nickname'];
+ $data['type'] = 'OrderedCollection';
+ $data['totalItems'] = $count;
+
+ // When we hide our friends we will only show the pure number but don't allow more.
+ $profile = Profile::getProfileForUser($owner['uid']);
+ if (!empty($profile['hide-friends'])) {
+ return $data;
+ }
+
+ if (empty($page)) {
+ $data['first'] = System::baseUrl() . '/following/' . $owner['nickname'] . '?page=1';
+ } else {
+ $list = [];
+
+ $contacts = DBA::select('contact', ['url'], $condition, ['limit' => [($page - 1) * 100, 100]]);
+ while ($contact = DBA::fetch($contacts)) {
+ $list[] = $contact['url'];
+ }
+
+ if (!empty($list)) {
+ $data['next'] = System::baseUrl() . '/following/' . $owner['nickname'] . '?page=' . ($page + 1);
+ }
+
+ $data['partOf'] = System::baseUrl() . '/following/' . $owner['nickname'];
+
+ $data['orderedItems'] = $list;
+ }
+
+ return $data;
+ }
+
+ public static function getOutbox($owner, $page = null)
+ {
+ $public_contact = Contact::getIdForURL($owner['url'], 0, true);
+
+ $condition = ['uid' => $owner['uid'], 'contact-id' => $owner['id'], 'author-id' => $public_contact,
+ 'wall' => true, 'private' => false, 'gravity' => [GRAVITY_PARENT, GRAVITY_COMMENT],
+ 'deleted' => false, 'visible' => true];
+ $count = DBA::count('item', $condition);
+
+ $data = ['@context' => self::CONTEXT];
+ $data['id'] = System::baseUrl() . '/outbox/' . $owner['nickname'];
+ $data['type'] = 'OrderedCollection';
+ $data['totalItems'] = $count;
+
+ if (empty($page)) {
+ $data['first'] = System::baseUrl() . '/outbox/' . $owner['nickname'] . '?page=1';
+ } else {
+ $list = [];
+
+ $condition['parent-network'] = Protocol::NATIVE_SUPPORT;
+
+ $items = Item::select(['id'], $condition, ['limit' => [($page - 1) * 20, 20], 'order' => ['created' => true]]);
+ while ($item = Item::fetch($items)) {
+ $object = self::createObjectFromItemID($item['id']);
+ unset($object['@context']);
+ $list[] = $object;
+ }
+
+ if (!empty($list)) {
+ $data['next'] = System::baseUrl() . '/outbox/' . $owner['nickname'] . '?page=' . ($page + 1);
+ }
+
+ $data['partOf'] = System::baseUrl() . '/outbox/' . $owner['nickname'];
+
+ $data['orderedItems'] = $list;
+ }
+
+ return $data;
+ }
+
/**
* Return the ActivityPub profile of the given user
*
if ($term['type'] != TERM_MENTION) {
continue;
}
- $profile = self::fetchprofile($term['url']);
+ $profile = self::fetchprofile($term['url'], false);
if (!empty($profile) && empty($contacts[$profile['url']])) {
$data['cc'][] = $profile['url'];
$contacts[$profile['url']] = $profile['url'];
}
}
+// It is to decide whether we should include all profiles in a thread to the list of receivers
+/*
$parents = Item::select(['author-link', 'owner-link', 'gravity'], ['parent' => $item['parent']]);
while ($parent = Item::fetch($parents)) {
- $profile = self::fetchprofile($parent['author-link']);
+ $profile = self::fetchprofile($parent['author-link'], false);
if (!empty($profile) && empty($contacts[$profile['url']])) {
$data['cc'][] = $profile['url'];
$contacts[$profile['url']] = $profile['url'];
continue;
}
- $profile = self::fetchprofile($parent['owner-link']);
+ $profile = self::fetchprofile($parent['owner-link'], false);
if (!empty($profile) && empty($contacts[$profile['url']])) {
$data['cc'][] = $profile['url'];
$contacts[$profile['url']] = $profile['url'];
}
}
DBA::close($parents);
-
+*/
if (empty($data['to'])) {
$data['to'] = $data['cc'];
$data['cc'] = [];
$type = self::getTypeOfItem($item);
if (!$object_mode) {
- $data = ['@context' => ['https://www.w3.org/ns/activitystreams', 'https://w3id.org/security/v1',
- ['ostatus' => 'http://ostatus.org#', 'uuid' => 'http://schema.org/identifier',
- 'sensitive' => 'as:sensitive', 'Hashtag' => 'as:Hashtag',
- 'atomUri' => 'ostatus:atomUri', 'conversation' => 'ostatus:conversation',
- 'inReplyToAtomUri' => 'ostatus:inReplyToAtomUri']]];
+ $data = ['@context' => self::CONTEXT];
if ($item['deleted'] && ($item['gravity'] == GRAVITY_ACTIVITY)) {
$type = 'Undo';
return false;
}
- $data = ['@context' => ['https://www.w3.org/ns/activitystreams', 'https://w3id.org/security/v1',
- ['ostatus' => 'http://ostatus.org#', 'uuid' => 'http://schema.org/identifier',
- 'sensitive' => 'as:sensitive', 'Hashtag' => 'as:Hashtag',
- 'atomUri' => 'ostatus:atomUri', 'conversation' => 'ostatus:conversation',
- 'inReplyToAtomUri' => 'ostatus:inReplyToAtomUri']]];
-
+ $data = ['@context' => self::CONTEXT];
$data = array_merge($data, self::CreateNote($item));
-
return $data;
}
if (!$ret['success'] || empty($ret['body'])) {
return;
}
-
return json_decode($ret['body'], true);
}
return false;
}
- public static function fetchprofile($url, $update = false)
+ /**
+ * Fetches a profile form a given url
+ *
+ * @param string $url profile url
+ * @param boolean $update true = always update, false = never update, null = update when not found
+ * @return array profile array
+ */
+ public static function fetchprofile($url, $update = null)
{
if (empty($url)) {
return false;
}
- if (!$update) {
+ if (empty($update)) {
$apcontact = DBA::selectFirst('apcontact', [], ['url' => $url]);
if (DBA::isResult($apcontact)) {
return $apcontact;
if (DBA::isResult($apcontact)) {
return $apcontact;
}
+
+ if (!is_null($update)) {
+ return false;
+ }
}
if (empty(parse_url($url, PHP_URL_SCHEME))) {
private static function fetchMissingActivity($url, $child)
{
+ if (Config::get('system', 'ostatus_full_threads')) {
+ return;
+ }
+
$object = ActivityPub::fetchContent($url);
if (empty($object)) {
logger('Activity ' . $url . ' was not fetchable, aborting.');