1810 lines
50 KiB
PHP
1810 lines
50 KiB
PHP
<?php
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/**
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* @file src/Protocol/ActivityPub.php
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*/
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namespace Friendica\Protocol;
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use Friendica\Database\DBA;
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use Friendica\Core\System;
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use Friendica\BaseObject;
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use Friendica\Util\Network;
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use Friendica\Util\HTTPSignature;
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use Friendica\Core\Protocol;
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use Friendica\Model\Conversation;
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use Friendica\Model\Contact;
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use Friendica\Model\APContact;
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use Friendica\Model\Item;
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use Friendica\Model\Profile;
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use Friendica\Model\Term;
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use Friendica\Model\User;
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use Friendica\Util\DateTimeFormat;
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use Friendica\Util\Crypto;
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use Friendica\Content\Text\BBCode;
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use Friendica\Content\Text\HTML;
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use Friendica\Util\JsonLD;
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use Friendica\Util\LDSignature;
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use Friendica\Core\Config;
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/**
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* @brief ActivityPub Protocol class
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* The ActivityPub Protocol is a message exchange protocol defined by the W3C.
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* https://www.w3.org/TR/activitypub/
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* https://www.w3.org/TR/activitystreams-core/
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* https://www.w3.org/TR/activitystreams-vocabulary/
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*
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* https://blog.joinmastodon.org/2018/06/how-to-implement-a-basic-activitypub-server/
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* https://blog.joinmastodon.org/2018/07/how-to-make-friends-and-verify-requests/
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*
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* Digest: https://tools.ietf.org/html/rfc5843
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* https://tools.ietf.org/html/draft-cavage-http-signatures-10#ref-15
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*
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* Mastodon implementation of supported activities:
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* https://github.com/tootsuite/mastodon/blob/master/app/lib/activitypub/activity.rb#L26
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*
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* To-do:
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*
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* Receiver:
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* - Update Note
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* - Delete Note
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* - Delete Person
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* - Undo Announce
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* - Reject Follow
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* - Undo Accept
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* - Undo Follow
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* - Add
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* - Create Image
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* - Create Video
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* - Event
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* - Remove
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* - Block
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* - Flag
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*
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* Transmitter:
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* - Announce
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* - Undo Announce
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* - Update Person
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* - Reject Follow
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* - Event
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*
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* General:
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* - Attachments
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* - nsfw (sensitive)
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* - Queueing unsucessful deliveries
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* - Polling the outboxes for missing content?
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* - Possibly using the LD-JSON parser
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*/
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class ActivityPub
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{
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const PUBLIC = 'https://www.w3.org/ns/activitystreams#Public';
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const CONTEXT = ['https://www.w3.org/ns/activitystreams', 'https://w3id.org/security/v1',
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['vcard' => 'http://www.w3.org/2006/vcard/ns#',
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'diaspora' => 'https://diasporafoundation.org/ns/',
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'manuallyApprovesFollowers' => 'as:manuallyApprovesFollowers',
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'sensitive' => 'as:sensitive', 'Hashtag' => 'as:Hashtag']];
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/**
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* @brief Checks if the web request is done for the AP protocol
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*
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* @return is it AP?
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*/
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public static function isRequest()
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{
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return stristr(defaults($_SERVER, 'HTTP_ACCEPT', ''), 'application/activity+json') ||
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stristr(defaults($_SERVER, 'HTTP_ACCEPT', ''), 'application/ld+json');
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}
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/**
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* @brief collects the lost of followers of the given owner
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*
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* @param array $owner Owner array
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* @param integer $page Page number
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*
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* @return array of owners
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*/
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public static function getFollowers($owner, $page = null)
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{
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$condition = ['rel' => [Contact::FOLLOWER, Contact::FRIEND], 'network' => Protocol::NATIVE_SUPPORT, 'uid' => $owner['uid'],
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'self' => false, 'hidden' => false, 'archive' => false, 'pending' => false];
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$count = DBA::count('contact', $condition);
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$data = ['@context' => self::CONTEXT];
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$data['id'] = System::baseUrl() . '/followers/' . $owner['nickname'];
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$data['type'] = 'OrderedCollection';
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$data['totalItems'] = $count;
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// When we hide our friends we will only show the pure number but don't allow more.
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$profile = Profile::getProfileForUser($owner['uid']);
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if (!empty($profile['hide-friends'])) {
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return $data;
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}
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if (empty($page)) {
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$data['first'] = System::baseUrl() . '/followers/' . $owner['nickname'] . '?page=1';
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} else {
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$list = [];
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$contacts = DBA::select('contact', ['url'], $condition, ['limit' => [($page - 1) * 100, 100]]);
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while ($contact = DBA::fetch($contacts)) {
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$list[] = $contact['url'];
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}
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if (!empty($list)) {
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$data['next'] = System::baseUrl() . '/followers/' . $owner['nickname'] . '?page=' . ($page + 1);
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}
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$data['partOf'] = System::baseUrl() . '/followers/' . $owner['nickname'];
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$data['orderedItems'] = $list;
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}
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return $data;
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}
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/**
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* @brief Create list of following contacts
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*
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* @param array $owner Owner array
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* @param integer $page Page numbe
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*
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* @return array of following contacts
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*/
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public static function getFollowing($owner, $page = null)
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{
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$condition = ['rel' => [Contact::SHARING, Contact::FRIEND], 'network' => Protocol::NATIVE_SUPPORT, 'uid' => $owner['uid'],
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'self' => false, 'hidden' => false, 'archive' => false, 'pending' => false];
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$count = DBA::count('contact', $condition);
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$data = ['@context' => self::CONTEXT];
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$data['id'] = System::baseUrl() . '/following/' . $owner['nickname'];
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$data['type'] = 'OrderedCollection';
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$data['totalItems'] = $count;
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// When we hide our friends we will only show the pure number but don't allow more.
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$profile = Profile::getProfileForUser($owner['uid']);
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if (!empty($profile['hide-friends'])) {
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return $data;
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}
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if (empty($page)) {
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$data['first'] = System::baseUrl() . '/following/' . $owner['nickname'] . '?page=1';
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} else {
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$list = [];
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$contacts = DBA::select('contact', ['url'], $condition, ['limit' => [($page - 1) * 100, 100]]);
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while ($contact = DBA::fetch($contacts)) {
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$list[] = $contact['url'];
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}
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if (!empty($list)) {
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$data['next'] = System::baseUrl() . '/following/' . $owner['nickname'] . '?page=' . ($page + 1);
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}
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$data['partOf'] = System::baseUrl() . '/following/' . $owner['nickname'];
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$data['orderedItems'] = $list;
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}
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return $data;
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}
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/**
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* @brief Public posts for the given owner
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*
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* @param array $owner Owner array
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* @param integer $page Page numbe
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*
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* @return array of posts
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*/
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public static function getOutbox($owner, $page = null)
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{
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$public_contact = Contact::getIdForURL($owner['url'], 0, true);
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$condition = ['uid' => $owner['uid'], 'contact-id' => $owner['id'], 'author-id' => $public_contact,
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'wall' => true, 'private' => false, 'gravity' => [GRAVITY_PARENT, GRAVITY_COMMENT],
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'deleted' => false, 'visible' => true];
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$count = DBA::count('item', $condition);
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$data = ['@context' => self::CONTEXT];
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$data['id'] = System::baseUrl() . '/outbox/' . $owner['nickname'];
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$data['type'] = 'OrderedCollection';
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$data['totalItems'] = $count;
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if (empty($page)) {
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$data['first'] = System::baseUrl() . '/outbox/' . $owner['nickname'] . '?page=1';
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} else {
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$list = [];
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$condition['parent-network'] = Protocol::NATIVE_SUPPORT;
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$items = Item::select(['id'], $condition, ['limit' => [($page - 1) * 20, 20], 'order' => ['created' => true]]);
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while ($item = Item::fetch($items)) {
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$object = self::createObjectFromItemID($item['id']);
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unset($object['@context']);
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$list[] = $object;
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}
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if (!empty($list)) {
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$data['next'] = System::baseUrl() . '/outbox/' . $owner['nickname'] . '?page=' . ($page + 1);
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}
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$data['partOf'] = System::baseUrl() . '/outbox/' . $owner['nickname'];
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$data['orderedItems'] = $list;
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}
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return $data;
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}
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/**
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* Return the ActivityPub profile of the given user
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*
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* @param integer $uid User ID
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* @return profile array
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*/
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public static function profile($uid)
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{
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$accounttype = ['Person', 'Organization', 'Service', 'Group', 'Application'];
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$condition = ['uid' => $uid, 'blocked' => false, 'account_expired' => false,
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'account_removed' => false, 'verified' => true];
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$fields = ['guid', 'nickname', 'pubkey', 'account-type', 'page-flags'];
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$user = DBA::selectFirst('user', $fields, $condition);
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if (!DBA::isResult($user)) {
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return [];
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}
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$fields = ['locality', 'region', 'country-name'];
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$profile = DBA::selectFirst('profile', $fields, ['uid' => $uid, 'is-default' => true]);
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if (!DBA::isResult($profile)) {
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return [];
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}
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$fields = ['name', 'url', 'location', 'about', 'avatar'];
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$contact = DBA::selectFirst('contact', $fields, ['uid' => $uid, 'self' => true]);
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if (!DBA::isResult($contact)) {
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return [];
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}
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$data = ['@context' => self::CONTEXT];
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$data['id'] = $contact['url'];
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$data['diaspora:guid'] = $user['guid'];
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$data['type'] = $accounttype[$user['account-type']];
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$data['following'] = System::baseUrl() . '/following/' . $user['nickname'];
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$data['followers'] = System::baseUrl() . '/followers/' . $user['nickname'];
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$data['inbox'] = System::baseUrl() . '/inbox/' . $user['nickname'];
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$data['outbox'] = System::baseUrl() . '/outbox/' . $user['nickname'];
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$data['preferredUsername'] = $user['nickname'];
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$data['name'] = $contact['name'];
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$data['vcard:hasAddress'] = ['@type' => 'vcard:Home', 'vcard:country-name' => $profile['country-name'],
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'vcard:region' => $profile['region'], 'vcard:locality' => $profile['locality']];
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$data['summary'] = $contact['about'];
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$data['url'] = $contact['url'];
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$data['manuallyApprovesFollowers'] = in_array($user['page-flags'], [Contact::PAGE_NORMAL, Contact::PAGE_PRVGROUP]);
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$data['publicKey'] = ['id' => $contact['url'] . '#main-key',
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'owner' => $contact['url'],
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'publicKeyPem' => $user['pubkey']];
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$data['endpoints'] = ['sharedInbox' => System::baseUrl() . '/inbox'];
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$data['icon'] = ['type' => 'Image',
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'url' => $contact['avatar']];
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// tags: https://kitty.town/@inmysocks/100656097926961126.json
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return $data;
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}
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/**
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* @brief Returns an array with permissions of a given item array
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*
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* @param array $item
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*
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* @return array with permissions
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*/
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private static function fetchPermissionBlockFromConversation($item)
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{
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if (empty($item['thr-parent'])) {
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return [];
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}
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$condition = ['item-uri' => $item['thr-parent'], 'protocol' => Conversation::PARCEL_ACTIVITYPUB];
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$conversation = DBA::selectFirst('conversation', ['source'], $condition);
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if (!DBA::isResult($conversation)) {
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return [];
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}
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$activity = json_decode($conversation['source'], true);
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$actor = JsonLD::fetchElement($activity, 'actor', 'id');
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$profile = APContact::getProfileByURL($actor);
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$item_profile = APContact::getProfileByURL($item['author-link']);
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$exclude[] = $item['author-link'];
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if ($item['gravity'] == GRAVITY_PARENT) {
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$exclude[] = $item['owner-link'];
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}
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$permissions['to'][] = $actor;
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$elements = ['to', 'cc', 'bto', 'bcc'];
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foreach ($elements as $element) {
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if (empty($activity[$element])) {
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continue;
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}
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if (is_string($activity[$element])) {
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$activity[$element] = [$activity[$element]];
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}
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foreach ($activity[$element] as $receiver) {
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if ($receiver == $profile['followers'] && !empty($item_profile['followers'])) {
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$receiver = $item_profile['followers'];
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}
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if (!in_array($receiver, $exclude)) {
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$permissions[$element][] = $receiver;
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}
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}
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}
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return $permissions;
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}
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/**
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* @brief Creates an array of permissions from an item thread
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*
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* @param array $item
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*
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* @return permission array
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*/
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public static function createPermissionBlockForItem($item)
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{
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$data = ['to' => [], 'cc' => []];
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$data = array_merge($data, self::fetchPermissionBlockFromConversation($item));
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$actor_profile = APContact::getProfileByURL($item['author-link']);
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$terms = Term::tagArrayFromItemId($item['id']);
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$contacts[$item['author-link']] = $item['author-link'];
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if (!$item['private']) {
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$data['to'][] = self::PUBLIC;
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if (!empty($actor_profile['followers'])) {
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$data['cc'][] = $actor_profile['followers'];
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}
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foreach ($terms as $term) {
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if ($term['type'] != TERM_MENTION) {
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continue;
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}
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$profile = APContact::getProfileByURL($term['url'], false);
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if (!empty($profile) && empty($contacts[$profile['url']])) {
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$data['cc'][] = $profile['url'];
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$contacts[$profile['url']] = $profile['url'];
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}
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}
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} else {
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$receiver_list = Item::enumeratePermissions($item);
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$mentioned = [];
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foreach ($terms as $term) {
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if ($term['type'] != TERM_MENTION) {
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continue;
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}
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$cid = Contact::getIdForURL($term['url'], $item['uid']);
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if (!empty($cid) && in_array($cid, $receiver_list)) {
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$contact = DBA::selectFirst('contact', ['url'], ['id' => $cid, 'network' => Protocol::ACTIVITYPUB]);
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$data['to'][] = $contact['url'];
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$contacts[$contact['url']] = $contact['url'];
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}
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}
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foreach ($receiver_list as $receiver) {
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$contact = DBA::selectFirst('contact', ['url'], ['id' => $receiver, 'network' => Protocol::ACTIVITYPUB]);
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if (empty($contacts[$contact['url']])) {
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$data['cc'][] = $contact['url'];
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$contacts[$contact['url']] = $contact['url'];
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}
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}
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}
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$parents = Item::select(['id', 'author-link', 'owner-link', 'gravity'], ['parent' => $item['parent']]);
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while ($parent = Item::fetch($parents)) {
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// Don't include data from future posts
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if ($parent['id'] >= $item['id']) {
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continue;
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}
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$profile = APContact::getProfileByURL($parent['author-link'], false);
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if (!empty($profile) && empty($contacts[$profile['url']])) {
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$data['cc'][] = $profile['url'];
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$contacts[$profile['url']] = $profile['url'];
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}
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if ($item['gravity'] != GRAVITY_PARENT) {
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continue;
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}
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$profile = APContact::getProfileByURL($parent['owner-link'], false);
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if (!empty($profile) && empty($contacts[$profile['url']])) {
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$data['cc'][] = $profile['url'];
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$contacts[$profile['url']] = $profile['url'];
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}
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}
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DBA::close($parents);
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if (empty($data['to'])) {
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$data['to'] = $data['cc'];
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$data['cc'] = [];
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}
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return $data;
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}
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/**
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* @brief Fetches an array of inboxes for the given item and user
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*
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* @param array $item
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* @param integer $uid User ID
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*
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* @return array with inboxes
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*/
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public static function fetchTargetInboxes($item, $uid)
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{
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$permissions = self::createPermissionBlockForItem($item);
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if (empty($permissions)) {
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return [];
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}
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$inboxes = [];
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if ($item['gravity'] == GRAVITY_ACTIVITY) {
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$item_profile = APContact::getProfileByURL($item['author-link']);
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} else {
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$item_profile = APContact::getProfileByURL($item['owner-link']);
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}
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$elements = ['to', 'cc', 'bto', 'bcc'];
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foreach ($elements as $element) {
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if (empty($permissions[$element])) {
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continue;
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}
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foreach ($permissions[$element] as $receiver) {
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if ($receiver == $item_profile['followers']) {
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$contacts = DBA::select('contact', ['notify', 'batch'], ['uid' => $uid,
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'rel' => [Contact::FOLLOWER, Contact::FRIEND], 'network' => Protocol::ACTIVITYPUB,
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'archive' => false, 'pending' => false]);
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while ($contact = DBA::fetch($contacts)) {
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$contact = defaults($contact, 'batch', $contact['notify']);
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$inboxes[$contact] = $contact;
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}
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DBA::close($contacts);
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} else {
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$profile = APContact::getProfileByURL($receiver);
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if (!empty($profile)) {
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$target = defaults($profile, 'sharedinbox', $profile['inbox']);
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$inboxes[$target] = $target;
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}
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}
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}
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}
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return $inboxes;
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}
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|
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/**
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* @brief Returns the activity type of a given item
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|
*
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* @param array $item
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*
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* @return activity type
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*/
|
|
public static function getTypeOfItem($item)
|
|
{
|
|
if ($item['verb'] == ACTIVITY_POST) {
|
|
if ($item['created'] == $item['edited']) {
|
|
$type = 'Create';
|
|
} else {
|
|
$type = 'Update';
|
|
}
|
|
} elseif ($item['verb'] == ACTIVITY_LIKE) {
|
|
$type = 'Like';
|
|
} elseif ($item['verb'] == ACTIVITY_DISLIKE) {
|
|
$type = 'Dislike';
|
|
} elseif ($item['verb'] == ACTIVITY_ATTEND) {
|
|
$type = 'Accept';
|
|
} elseif ($item['verb'] == ACTIVITY_ATTENDNO) {
|
|
$type = 'Reject';
|
|
} elseif ($item['verb'] == ACTIVITY_ATTENDMAYBE) {
|
|
$type = 'TentativeAccept';
|
|
} else {
|
|
$type = '';
|
|
}
|
|
|
|
return $type;
|
|
}
|
|
|
|
/**
|
|
* @brief Creates an activity array for a given item id
|
|
*
|
|
* @param integer $item_id
|
|
* @param boolean $object_mode Is the activity item is used inside another object?
|
|
*
|
|
* @return array of activity
|
|
*/
|
|
public static function createActivityFromItem($item_id, $object_mode = false)
|
|
{
|
|
$item = Item::selectFirst([], ['id' => $item_id, 'parent-network' => Protocol::NATIVE_SUPPORT]);
|
|
|
|
if (!DBA::isResult($item)) {
|
|
return false;
|
|
}
|
|
|
|
$condition = ['item-uri' => $item['uri'], 'protocol' => Conversation::PARCEL_ACTIVITYPUB];
|
|
$conversation = DBA::selectFirst('conversation', ['source'], $condition);
|
|
if (DBA::isResult($conversation)) {
|
|
$data = json_decode($conversation['source']);
|
|
if (!empty($data)) {
|
|
return $data;
|
|
}
|
|
}
|
|
|
|
$type = self::getTypeOfItem($item);
|
|
|
|
if (!$object_mode) {
|
|
$data = ['@context' => self::CONTEXT];
|
|
|
|
if ($item['deleted'] && ($item['gravity'] == GRAVITY_ACTIVITY)) {
|
|
$type = 'Undo';
|
|
} elseif ($item['deleted']) {
|
|
$type = 'Delete';
|
|
}
|
|
} else {
|
|
$data = [];
|
|
}
|
|
|
|
$data['id'] = $item['uri'] . '#' . $type;
|
|
$data['type'] = $type;
|
|
$data['actor'] = $item['author-link'];
|
|
|
|
$data['published'] = DateTimeFormat::utc($item["created"]."+00:00", DateTimeFormat::ATOM);
|
|
|
|
if ($item["created"] != $item["edited"]) {
|
|
$data['updated'] = DateTimeFormat::utc($item["edited"]."+00:00", DateTimeFormat::ATOM);
|
|
}
|
|
|
|
$data['context'] = self::fetchContextURLForItem($item);
|
|
|
|
$data = array_merge($data, ActivityPub::createPermissionBlockForItem($item));
|
|
|
|
if (in_array($data['type'], ['Create', 'Update', 'Announce', 'Delete'])) {
|
|
$data['object'] = self::createNote($item);
|
|
} elseif ($data['type'] == 'Undo') {
|
|
$data['object'] = self::createActivityFromItem($item_id, true);
|
|
} else {
|
|
$data['object'] = $item['thr-parent'];
|
|
}
|
|
|
|
$owner = User::getOwnerDataById($item['uid']);
|
|
|
|
if (!$object_mode) {
|
|
return LDSignature::sign($data, $owner);
|
|
} else {
|
|
return $data;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Creates an object array for a given item id
|
|
*
|
|
* @param integer $item_id
|
|
*
|
|
* @return object array
|
|
*/
|
|
public static function createObjectFromItemID($item_id)
|
|
{
|
|
$item = Item::selectFirst([], ['id' => $item_id, 'parent-network' => Protocol::NATIVE_SUPPORT]);
|
|
|
|
if (!DBA::isResult($item)) {
|
|
return false;
|
|
}
|
|
|
|
$data = ['@context' => self::CONTEXT];
|
|
$data = array_merge($data, self::createNote($item));
|
|
|
|
return $data;
|
|
}
|
|
|
|
/**
|
|
* @brief Returns a tag array for a given item array
|
|
*
|
|
* @param array $item
|
|
*
|
|
* @return array of tags
|
|
*/
|
|
private static function createTagList($item)
|
|
{
|
|
$tags = [];
|
|
|
|
$terms = Term::tagArrayFromItemId($item['id']);
|
|
foreach ($terms as $term) {
|
|
if ($term['type'] == TERM_MENTION) {
|
|
$contact = Contact::getDetailsByURL($term['url']);
|
|
if (!empty($contact['addr'])) {
|
|
$mention = '@' . $contact['addr'];
|
|
} else {
|
|
$mention = '@' . $term['url'];
|
|
}
|
|
|
|
$tags[] = ['type' => 'Mention', 'href' => $term['url'], 'name' => $mention];
|
|
}
|
|
}
|
|
return $tags;
|
|
}
|
|
|
|
/**
|
|
* @brief Fetches the "context" value for a givem item array from the "conversation" table
|
|
*
|
|
* @param array $item
|
|
*
|
|
* @return string with context url
|
|
*/
|
|
private static function fetchContextURLForItem($item)
|
|
{
|
|
$conversation = DBA::selectFirst('conversation', ['conversation-href', 'conversation-uri'], ['item-uri' => $item['parent-uri']]);
|
|
if (DBA::isResult($conversation) && !empty($conversation['conversation-href'])) {
|
|
$context_uri = $conversation['conversation-href'];
|
|
} elseif (DBA::isResult($conversation) && !empty($conversation['conversation-uri'])) {
|
|
$context_uri = $conversation['conversation-uri'];
|
|
} else {
|
|
$context_uri = str_replace('/object/', '/context/', $item['parent-uri']);
|
|
}
|
|
return $context_uri;
|
|
}
|
|
|
|
/**
|
|
* @brief Creates a note/article object array
|
|
*
|
|
* @param array $item
|
|
*
|
|
* @return object array
|
|
*/
|
|
private static function createNote($item)
|
|
{
|
|
if (!empty($item['title'])) {
|
|
$type = 'Article';
|
|
} else {
|
|
$type = 'Note';
|
|
}
|
|
|
|
if ($item['deleted']) {
|
|
$type = 'Tombstone';
|
|
}
|
|
|
|
$data = [];
|
|
$data['id'] = $item['uri'];
|
|
$data['type'] = $type;
|
|
|
|
if ($item['deleted']) {
|
|
return $data;
|
|
}
|
|
|
|
$data['summary'] = null; // Ignore by now
|
|
|
|
if ($item['uri'] != $item['thr-parent']) {
|
|
$data['inReplyTo'] = $item['thr-parent'];
|
|
} else {
|
|
$data['inReplyTo'] = null;
|
|
}
|
|
|
|
$data['diaspora:guid'] = $item['guid'];
|
|
$data['published'] = DateTimeFormat::utc($item["created"]."+00:00", DateTimeFormat::ATOM);
|
|
|
|
if ($item["created"] != $item["edited"]) {
|
|
$data['updated'] = DateTimeFormat::utc($item["edited"]."+00:00", DateTimeFormat::ATOM);
|
|
}
|
|
|
|
$data['url'] = $item['plink'];
|
|
$data['attributedTo'] = $item['author-link'];
|
|
$data['actor'] = $item['author-link'];
|
|
$data['sensitive'] = false; // - Query NSFW
|
|
$data['context'] = self::fetchContextURLForItem($item);
|
|
|
|
if (!empty($item['title'])) {
|
|
$data['name'] = BBCode::convert($item['title'], false, 7);
|
|
}
|
|
|
|
$data['content'] = BBCode::convert($item['body'], false, 7);
|
|
$data['source'] = ['content' => $item['body'], 'mediaType' => "text/bbcode"];
|
|
|
|
if (!empty($item['signed_text']) && ($item['uri'] != $item['thr-parent'])) {
|
|
$data['diaspora:comment'] = $item['signed_text'];
|
|
}
|
|
|
|
$data['attachment'] = []; // @ToDo
|
|
$data['tag'] = self::createTagList($item);
|
|
$data = array_merge($data, ActivityPub::createPermissionBlockForItem($item));
|
|
|
|
return $data;
|
|
}
|
|
|
|
/**
|
|
* @brief Transmits a given activity to a target
|
|
*
|
|
* @param array $activity
|
|
* @param string $target Target profile
|
|
* @param integer $uid User ID
|
|
*/
|
|
public static function transmitActivity($activity, $target, $uid)
|
|
{
|
|
$profile = APContact::getProfileByURL($target);
|
|
|
|
$owner = User::getOwnerDataById($uid);
|
|
|
|
$data = ['@context' => 'https://www.w3.org/ns/activitystreams',
|
|
'id' => System::baseUrl() . '/activity/' . System::createGUID(),
|
|
'type' => $activity,
|
|
'actor' => $owner['url'],
|
|
'object' => $profile['url'],
|
|
'to' => $profile['url']];
|
|
|
|
logger('Sending activity ' . $activity . ' to ' . $target . ' for user ' . $uid, LOGGER_DEBUG);
|
|
|
|
$signed = LDSignature::sign($data, $owner);
|
|
HTTPSignature::transmit($signed, $profile['inbox'], $uid);
|
|
}
|
|
|
|
/**
|
|
* @brief Transmit a message that the contact request had been accepted
|
|
*
|
|
* @param string $target Target profile
|
|
* @param $id
|
|
* @param integer $uid User ID
|
|
*/
|
|
public static function transmitContactAccept($target, $id, $uid)
|
|
{
|
|
$profile = APContact::getProfileByURL($target);
|
|
|
|
$owner = User::getOwnerDataById($uid);
|
|
$data = ['@context' => 'https://www.w3.org/ns/activitystreams',
|
|
'id' => System::baseUrl() . '/activity/' . System::createGUID(),
|
|
'type' => 'Accept',
|
|
'actor' => $owner['url'],
|
|
'object' => ['id' => $id, 'type' => 'Follow',
|
|
'actor' => $profile['url'],
|
|
'object' => $owner['url']],
|
|
'to' => $profile['url']];
|
|
|
|
logger('Sending accept to ' . $target . ' for user ' . $uid . ' with id ' . $id, LOGGER_DEBUG);
|
|
|
|
$signed = LDSignature::sign($data, $owner);
|
|
HTTPSignature::transmit($signed, $profile['inbox'], $uid);
|
|
}
|
|
|
|
/**
|
|
* @brief
|
|
*
|
|
* @param string $target Target profile
|
|
* @param $id
|
|
* @param integer $uid User ID
|
|
*/
|
|
public static function transmitContactReject($target, $id, $uid)
|
|
{
|
|
$profile = APContact::getProfileByURL($target);
|
|
|
|
$owner = User::getOwnerDataById($uid);
|
|
$data = ['@context' => 'https://www.w3.org/ns/activitystreams',
|
|
'id' => System::baseUrl() . '/activity/' . System::createGUID(),
|
|
'type' => 'Reject',
|
|
'actor' => $owner['url'],
|
|
'object' => ['id' => $id, 'type' => 'Follow',
|
|
'actor' => $profile['url'],
|
|
'object' => $owner['url']],
|
|
'to' => $profile['url']];
|
|
|
|
logger('Sending reject to ' . $target . ' for user ' . $uid . ' with id ' . $id, LOGGER_DEBUG);
|
|
|
|
$signed = LDSignature::sign($data, $owner);
|
|
HTTPSignature::transmit($signed, $profile['inbox'], $uid);
|
|
}
|
|
|
|
/**
|
|
* @brief
|
|
*
|
|
* @param string $target Target profile
|
|
* @param integer $uid User ID
|
|
*/
|
|
public static function transmitContactUndo($target, $uid)
|
|
{
|
|
$profile = APContact::getProfileByURL($target);
|
|
|
|
$id = System::baseUrl() . '/activity/' . System::createGUID();
|
|
|
|
$owner = User::getOwnerDataById($uid);
|
|
$data = ['@context' => 'https://www.w3.org/ns/activitystreams',
|
|
'id' => $id,
|
|
'type' => 'Undo',
|
|
'actor' => $owner['url'],
|
|
'object' => ['id' => $id, 'type' => 'Follow',
|
|
'actor' => $owner['url'],
|
|
'object' => $profile['url']],
|
|
'to' => $profile['url']];
|
|
|
|
logger('Sending undo to ' . $target . ' for user ' . $uid . ' with id ' . $id, LOGGER_DEBUG);
|
|
|
|
$signed = LDSignature::sign($data, $owner);
|
|
HTTPSignature::transmit($signed, $profile['inbox'], $uid);
|
|
}
|
|
|
|
/**
|
|
* Fetches ActivityPub content from the given url
|
|
*
|
|
* @param string $url content url
|
|
* @return array
|
|
*/
|
|
public static function fetchContent($url)
|
|
{
|
|
$ret = Network::curl($url, false, $redirects, ['accept_content' => 'application/activity+json, application/ld+json']);
|
|
if (!$ret['success'] || empty($ret['body'])) {
|
|
return;
|
|
}
|
|
return json_decode($ret['body'], true);
|
|
}
|
|
|
|
/**
|
|
* Fetches a profile from the given url into an array that is compatible to Probe::uri
|
|
*
|
|
* @param string $url profile url
|
|
* @return array
|
|
*/
|
|
public static function probeProfile($url)
|
|
{
|
|
$apcontact = APContact::getProfileByURL($url, true);
|
|
if (empty($apcontact)) {
|
|
return false;
|
|
}
|
|
|
|
$profile = ['network' => Protocol::ACTIVITYPUB];
|
|
$profile['nick'] = $apcontact['nick'];
|
|
$profile['name'] = $apcontact['name'];
|
|
$profile['guid'] = $apcontact['uuid'];
|
|
$profile['url'] = $apcontact['url'];
|
|
$profile['addr'] = $apcontact['addr'];
|
|
$profile['alias'] = $apcontact['alias'];
|
|
$profile['photo'] = $apcontact['photo'];
|
|
// $profile['community']
|
|
// $profile['keywords']
|
|
// $profile['location']
|
|
$profile['about'] = $apcontact['about'];
|
|
$profile['batch'] = $apcontact['sharedinbox'];
|
|
$profile['notify'] = $apcontact['inbox'];
|
|
$profile['poll'] = $apcontact['outbox'];
|
|
$profile['pubkey'] = $apcontact['pubkey'];
|
|
$profile['baseurl'] = $apcontact['baseurl'];
|
|
|
|
// Remove all "null" fields
|
|
foreach ($profile as $field => $content) {
|
|
if (is_null($content)) {
|
|
unset($profile[$field]);
|
|
}
|
|
}
|
|
|
|
return $profile;
|
|
}
|
|
|
|
/**
|
|
* @brief
|
|
*
|
|
* @param $body
|
|
* @param $header
|
|
* @param integer $uid User ID
|
|
*/
|
|
public static function processInbox($body, $header, $uid)
|
|
{
|
|
$http_signer = HTTPSignature::getSigner($body, $header);
|
|
if (empty($http_signer)) {
|
|
logger('Invalid HTTP signature, message will be discarded.', LOGGER_DEBUG);
|
|
return;
|
|
} else {
|
|
logger('HTTP signature is signed by ' . $http_signer, LOGGER_DEBUG);
|
|
}
|
|
|
|
$activity = json_decode($body, true);
|
|
|
|
$actor = JsonLD::fetchElement($activity, 'actor', 'id');
|
|
logger('Message for user ' . $uid . ' is from actor ' . $actor, LOGGER_DEBUG);
|
|
|
|
if (empty($activity)) {
|
|
logger('Invalid body.', LOGGER_DEBUG);
|
|
return;
|
|
}
|
|
|
|
if (LDSignature::isSigned($activity)) {
|
|
$ld_signer = LDSignature::getSigner($activity);
|
|
if (empty($ld_signer)) {
|
|
logger('Invalid JSON-LD signature from ' . $actor, LOGGER_DEBUG);
|
|
}
|
|
if (!empty($ld_signer && ($actor == $http_signer))) {
|
|
logger('The HTTP and the JSON-LD signature belong to ' . $ld_signer, LOGGER_DEBUG);
|
|
$trust_source = true;
|
|
} elseif (!empty($ld_signer)) {
|
|
logger('JSON-LD signature is signed by ' . $ld_signer, LOGGER_DEBUG);
|
|
$trust_source = true;
|
|
} elseif ($actor == $http_signer) {
|
|
logger('Bad JSON-LD signature, but HTTP signer fits the actor.', LOGGER_DEBUG);
|
|
$trust_source = true;
|
|
} else {
|
|
logger('Invalid JSON-LD signature and the HTTP signer is different.', LOGGER_DEBUG);
|
|
$trust_source = false;
|
|
}
|
|
} elseif ($actor == $http_signer) {
|
|
logger('Trusting post without JSON-LD signature, The actor fits the HTTP signer.', LOGGER_DEBUG);
|
|
$trust_source = true;
|
|
} else {
|
|
logger('No JSON-LD signature, different actor.', LOGGER_DEBUG);
|
|
$trust_source = false;
|
|
}
|
|
|
|
self::processActivity($activity, $body, $uid, $trust_source);
|
|
}
|
|
|
|
/**
|
|
* @brief
|
|
*
|
|
* @param $url
|
|
* @param integer $uid User ID
|
|
*/
|
|
public static function fetchOutbox($url, $uid)
|
|
{
|
|
$data = self::fetchContent($url);
|
|
if (empty($data)) {
|
|
return;
|
|
}
|
|
|
|
if (!empty($data['orderedItems'])) {
|
|
$items = $data['orderedItems'];
|
|
} elseif (!empty($data['first']['orderedItems'])) {
|
|
$items = $data['first']['orderedItems'];
|
|
} elseif (!empty($data['first'])) {
|
|
self::fetchOutbox($data['first'], $uid);
|
|
return;
|
|
} else {
|
|
$items = [];
|
|
}
|
|
|
|
foreach ($items as $activity) {
|
|
self::processActivity($activity, '', $uid, true);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief
|
|
*
|
|
* @param array $activity
|
|
* @param integer $uid User ID
|
|
* @param $trust_source
|
|
*
|
|
* @return
|
|
*/
|
|
private static function prepareObjectData($activity, $uid, &$trust_source)
|
|
{
|
|
$actor = JsonLD::fetchElement($activity, 'actor', 'id');
|
|
if (empty($actor)) {
|
|
logger('Empty actor', LOGGER_DEBUG);
|
|
return [];
|
|
}
|
|
|
|
// Fetch all receivers from to, cc, bto and bcc
|
|
$receivers = self::getReceivers($activity, $actor);
|
|
|
|
// When it is a delivery to a personal inbox we add that user to the receivers
|
|
if (!empty($uid)) {
|
|
$owner = User::getOwnerDataById($uid);
|
|
$additional = ['uid:' . $uid => $uid];
|
|
$receivers = array_merge($receivers, $additional);
|
|
}
|
|
|
|
logger('Receivers: ' . json_encode($receivers), LOGGER_DEBUG);
|
|
|
|
$object_id = JsonLD::fetchElement($activity, 'object', 'id');
|
|
if (empty($object_id)) {
|
|
logger('No object found', LOGGER_DEBUG);
|
|
return [];
|
|
}
|
|
|
|
// Fetch the content only on activities where this matters
|
|
if (in_array($activity['type'], ['Create', 'Announce'])) {
|
|
$object_data = self::fetchObject($object_id, $activity['object'], $trust_source);
|
|
if (empty($object_data)) {
|
|
logger("Object data couldn't be processed", LOGGER_DEBUG);
|
|
return [];
|
|
}
|
|
// We had been able to retrieve the object data - so we can trust the source
|
|
$trust_source = true;
|
|
} elseif (in_array($activity['type'], ['Like', 'Dislike'])) {
|
|
// Create a mostly empty array out of the activity data (instead of the object).
|
|
// This way we later don't have to check for the existence of ech individual array element.
|
|
$object_data = self::processObject($activity);
|
|
$object_data['name'] = $activity['type'];
|
|
$object_data['author'] = $activity['actor'];
|
|
$object_data['object'] = $object_id;
|
|
$object_data['object_type'] = ''; // Since we don't fetch the object, we don't know the type
|
|
} else {
|
|
$object_data = [];
|
|
$object_data['id'] = $activity['id'];
|
|
$object_data['object'] = $activity['object'];
|
|
$object_data['object_type'] = JsonLD::fetchElement($activity, 'object', 'type');
|
|
}
|
|
|
|
$object_data = self::addActivityFields($object_data, $activity);
|
|
|
|
$object_data['type'] = $activity['type'];
|
|
$object_data['owner'] = $actor;
|
|
$object_data['receiver'] = array_merge(defaults($object_data, 'receiver', []), $receivers);
|
|
|
|
logger('Processing ' . $object_data['type'] . ' ' . $object_data['object_type'] . ' ' . $object_data['id'], LOGGER_DEBUG);
|
|
|
|
return $object_data;
|
|
}
|
|
|
|
/**
|
|
* @brief
|
|
*
|
|
* @param array $activity
|
|
* @param $body
|
|
* @param integer $uid User ID
|
|
* @param $trust_source
|
|
*/
|
|
private static function processActivity($activity, $body = '', $uid = null, $trust_source = false)
|
|
{
|
|
if (empty($activity['type'])) {
|
|
logger('Empty type', LOGGER_DEBUG);
|
|
return;
|
|
}
|
|
|
|
if (empty($activity['object'])) {
|
|
logger('Empty object', LOGGER_DEBUG);
|
|
return;
|
|
}
|
|
|
|
if (empty($activity['actor'])) {
|
|
logger('Empty actor', LOGGER_DEBUG);
|
|
return;
|
|
|
|
}
|
|
|
|
// $trust_source is called by reference and is set to true if the content was retrieved successfully
|
|
$object_data = self::prepareObjectData($activity, $uid, $trust_source);
|
|
if (empty($object_data)) {
|
|
logger('No object data found', LOGGER_DEBUG);
|
|
return;
|
|
}
|
|
|
|
if (!$trust_source) {
|
|
logger('No trust for activity type "' . $activity['type'] . '", so we quit now.', LOGGER_DEBUG);
|
|
}
|
|
|
|
switch ($activity['type']) {
|
|
case 'Create':
|
|
case 'Announce':
|
|
self::createItem($object_data, $body);
|
|
break;
|
|
|
|
case 'Like':
|
|
self::likeItem($object_data, $body);
|
|
break;
|
|
|
|
case 'Dislike':
|
|
self::dislikeItem($object_data, $body);
|
|
break;
|
|
|
|
case 'Update':
|
|
if (in_array($object_data['object_type'], ['Person', 'Organization', 'Service', 'Group', 'Application'])) {
|
|
self::updatePerson($object_data, $body);
|
|
}
|
|
break;
|
|
|
|
case 'Delete':
|
|
break;
|
|
|
|
case 'Follow':
|
|
self::followUser($object_data);
|
|
break;
|
|
|
|
case 'Accept':
|
|
if ($object_data['object_type'] == 'Follow') {
|
|
self::acceptFollowUser($object_data);
|
|
}
|
|
break;
|
|
|
|
case 'Undo':
|
|
if ($object_data['object_type'] == 'Follow') {
|
|
self::undoFollowUser($object_data);
|
|
} elseif (in_array($object_data['object_type'], ['Like', 'Dislike', 'Accept', 'Reject', 'TentativeAccept'])) {
|
|
self::undoActivity($object_data);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
logger('Unknown activity: ' . $activity['type'], LOGGER_DEBUG);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief
|
|
*
|
|
* @param array $activity
|
|
* @param $actor
|
|
*
|
|
* @return
|
|
*/
|
|
private static function getReceivers($activity, $actor)
|
|
{
|
|
$receivers = [];
|
|
|
|
// When it is an answer, we inherite the receivers from the parent
|
|
$replyto = JsonLD::fetchElement($activity, 'inReplyTo', 'id');
|
|
if (!empty($replyto)) {
|
|
$parents = Item::select(['uid'], ['uri' => $replyto]);
|
|
while ($parent = Item::fetch($parents)) {
|
|
$receivers['uid:' . $parent['uid']] = $parent['uid'];
|
|
}
|
|
}
|
|
|
|
if (!empty($actor)) {
|
|
$profile = APContact::getProfileByURL($actor);
|
|
$followers = defaults($profile, 'followers', '');
|
|
|
|
logger('Actor: ' . $actor . ' - Followers: ' . $followers, LOGGER_DEBUG);
|
|
} else {
|
|
logger('Empty actor', LOGGER_DEBUG);
|
|
$followers = '';
|
|
}
|
|
|
|
$elements = ['to', 'cc', 'bto', 'bcc'];
|
|
foreach ($elements as $element) {
|
|
if (empty($activity[$element])) {
|
|
continue;
|
|
}
|
|
|
|
// The receiver can be an arror or a string
|
|
if (is_string($activity[$element])) {
|
|
$activity[$element] = [$activity[$element]];
|
|
}
|
|
|
|
foreach ($activity[$element] as $receiver) {
|
|
if ($receiver == self::PUBLIC) {
|
|
$receivers['uid:0'] = 0;
|
|
}
|
|
|
|
if (($receiver == self::PUBLIC) && !empty($actor)) {
|
|
// This will most likely catch all OStatus connections to Mastodon
|
|
$condition = ['alias' => [$actor, normalise_link($actor)], 'rel' => [Contact::SHARING, Contact::FRIEND]
|
|
, 'archive' => false, 'pending' => false];
|
|
$contacts = DBA::select('contact', ['uid'], $condition);
|
|
while ($contact = DBA::fetch($contacts)) {
|
|
if ($contact['uid'] != 0) {
|
|
$receivers['uid:' . $contact['uid']] = $contact['uid'];
|
|
}
|
|
}
|
|
DBA::close($contacts);
|
|
}
|
|
|
|
if (in_array($receiver, [$followers, self::PUBLIC]) && !empty($actor)) {
|
|
$condition = ['nurl' => normalise_link($actor), 'rel' => [Contact::SHARING, Contact::FRIEND],
|
|
'network' => Protocol::ACTIVITYPUB, 'archive' => false, 'pending' => false];
|
|
$contacts = DBA::select('contact', ['uid'], $condition);
|
|
while ($contact = DBA::fetch($contacts)) {
|
|
if ($contact['uid'] != 0) {
|
|
$receivers['uid:' . $contact['uid']] = $contact['uid'];
|
|
}
|
|
}
|
|
DBA::close($contacts);
|
|
continue;
|
|
}
|
|
|
|
$condition = ['self' => true, 'nurl' => normalise_link($receiver)];
|
|
$contact = DBA::selectFirst('contact', ['uid'], $condition);
|
|
if (!DBA::isResult($contact)) {
|
|
continue;
|
|
}
|
|
$receivers['uid:' . $contact['uid']] = $contact['uid'];
|
|
}
|
|
}
|
|
|
|
self::switchContacts($receivers, $actor);
|
|
|
|
return $receivers;
|
|
}
|
|
|
|
/**
|
|
* @brief
|
|
*
|
|
* @param $cid
|
|
* @param integer $uid User ID
|
|
* @param $url
|
|
*/
|
|
private static function switchContact($cid, $uid, $url)
|
|
{
|
|
$profile = ActivityPub::probeProfile($url);
|
|
if (empty($profile)) {
|
|
return;
|
|
}
|
|
|
|
logger('Switch contact ' . $cid . ' (' . $profile['url'] . ') for user ' . $uid . ' from OStatus to ActivityPub');
|
|
|
|
$photo = $profile['photo'];
|
|
unset($profile['photo']);
|
|
unset($profile['baseurl']);
|
|
|
|
$profile['nurl'] = normalise_link($profile['url']);
|
|
DBA::update('contact', $profile, ['id' => $cid]);
|
|
|
|
Contact::updateAvatar($photo, $uid, $cid);
|
|
}
|
|
|
|
/**
|
|
* @brief
|
|
*
|
|
* @param $receivers
|
|
* @param $actor
|
|
*/
|
|
private static function switchContacts($receivers, $actor)
|
|
{
|
|
if (empty($actor)) {
|
|
return;
|
|
}
|
|
|
|
foreach ($receivers as $receiver) {
|
|
$contact = DBA::selectFirst('contact', ['id'], ['uid' => $receiver, 'network' => Protocol::OSTATUS, 'nurl' => normalise_link($actor)]);
|
|
if (DBA::isResult($contact)) {
|
|
self::switchContact($contact['id'], $receiver, $actor);
|
|
}
|
|
|
|
$contact = DBA::selectFirst('contact', ['id'], ['uid' => $receiver, 'network' => Protocol::OSTATUS, 'alias' => [normalise_link($actor), $actor]]);
|
|
if (DBA::isResult($contact)) {
|
|
self::switchContact($contact['id'], $receiver, $actor);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief
|
|
*
|
|
* @param $object_data
|
|
* @param array $activity
|
|
*
|
|
* @return
|
|
*/
|
|
private static function addActivityFields($object_data, $activity)
|
|
{
|
|
if (!empty($activity['published']) && empty($object_data['published'])) {
|
|
$object_data['published'] = $activity['published'];
|
|
}
|
|
|
|
if (!empty($activity['updated']) && empty($object_data['updated'])) {
|
|
$object_data['updated'] = $activity['updated'];
|
|
}
|
|
|
|
if (!empty($activity['inReplyTo']) && empty($object_data['parent-uri'])) {
|
|
$object_data['parent-uri'] = JsonLD::fetchElement($activity, 'inReplyTo', 'id');
|
|
}
|
|
|
|
if (!empty($activity['instrument'])) {
|
|
$object_data['service'] = JsonLD::fetchElement($activity, 'instrument', 'name', 'type', 'Service');
|
|
}
|
|
return $object_data;
|
|
}
|
|
|
|
/**
|
|
* @brief
|
|
*
|
|
* @param $object_id
|
|
* @param $object
|
|
* @param $trust_source
|
|
*
|
|
* @return
|
|
*/
|
|
private static function fetchObject($object_id, $object = [], $trust_source = false)
|
|
{
|
|
if (!$trust_source || is_string($object)) {
|
|
$data = self::fetchContent($object_id);
|
|
if (empty($data)) {
|
|
logger('Empty content for ' . $object_id . ', check if content is available locally.', LOGGER_DEBUG);
|
|
$data = $object_id;
|
|
} else {
|
|
logger('Fetched content for ' . $object_id, LOGGER_DEBUG);
|
|
}
|
|
} else {
|
|
logger('Using original object for url ' . $object_id, LOGGER_DEBUG);
|
|
$data = $object;
|
|
}
|
|
|
|
if (is_string($data)) {
|
|
$item = Item::selectFirst([], ['uri' => $data]);
|
|
if (!DBA::isResult($item)) {
|
|
logger('Object with url ' . $data . ' was not found locally.', LOGGER_DEBUG);
|
|
return false;
|
|
}
|
|
logger('Using already stored item for url ' . $object_id, LOGGER_DEBUG);
|
|
$data = self::createNote($item);
|
|
}
|
|
|
|
if (empty($data['type'])) {
|
|
logger('Empty type', LOGGER_DEBUG);
|
|
return false;
|
|
}
|
|
|
|
switch ($data['type']) {
|
|
case 'Note':
|
|
case 'Article':
|
|
case 'Video':
|
|
return self::processObject($data);
|
|
|
|
case 'Announce':
|
|
if (empty($data['object'])) {
|
|
return false;
|
|
}
|
|
return self::fetchObject($data['object']);
|
|
|
|
case 'Person':
|
|
case 'Tombstone':
|
|
break;
|
|
|
|
default:
|
|
logger('Unknown object type: ' . $data['type'], LOGGER_DEBUG);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief
|
|
*
|
|
* @param $object
|
|
*
|
|
* @return
|
|
*/
|
|
private static function processObject(&$object)
|
|
{
|
|
if (empty($object['id'])) {
|
|
return false;
|
|
}
|
|
|
|
$object_data = [];
|
|
$object_data['object_type'] = $object['type'];
|
|
$object_data['id'] = $object['id'];
|
|
|
|
if (!empty($object['inReplyTo'])) {
|
|
$object_data['reply-to-id'] = JsonLD::fetchElement($object, 'inReplyTo', 'id');
|
|
} else {
|
|
$object_data['reply-to-id'] = $object_data['id'];
|
|
}
|
|
|
|
$object_data['published'] = defaults($object, 'published', null);
|
|
$object_data['updated'] = defaults($object, 'updated', $object_data['published']);
|
|
|
|
if (empty($object_data['published']) && !empty($object_data['updated'])) {
|
|
$object_data['published'] = $object_data['updated'];
|
|
}
|
|
|
|
$actor = JsonLD::fetchElement($object, 'attributedTo', 'id');
|
|
if (empty($actor)) {
|
|
$actor = defaults($object, 'actor', null);
|
|
}
|
|
|
|
$object_data['diaspora:guid'] = defaults($object, 'diaspora:guid', null);
|
|
$object_data['owner'] = $object_data['author'] = $actor;
|
|
$object_data['context'] = defaults($object, 'context', null);
|
|
$object_data['conversation'] = defaults($object, 'conversation', null);
|
|
$object_data['sensitive'] = defaults($object, 'sensitive', null);
|
|
$object_data['name'] = defaults($object, 'title', null);
|
|
$object_data['name'] = defaults($object, 'name', $object_data['name']);
|
|
$object_data['summary'] = defaults($object, 'summary', null);
|
|
$object_data['content'] = defaults($object, 'content', null);
|
|
$object_data['source'] = defaults($object, 'source', null);
|
|
$object_data['location'] = JsonLD::fetchElement($object, 'location', 'name', 'type', 'Place');
|
|
$object_data['attachments'] = defaults($object, 'attachment', null);
|
|
$object_data['tags'] = defaults($object, 'tag', null);
|
|
$object_data['service'] = JsonLD::fetchElement($object, 'instrument', 'name', 'type', 'Service');
|
|
$object_data['alternate-url'] = JsonLD::fetchElement($object, 'url', 'href');
|
|
$object_data['receiver'] = self::getReceivers($object, $object_data['owner']);
|
|
|
|
// Common object data:
|
|
|
|
// Unhandled
|
|
// @context, type, actor, signature, mediaType, duration, replies, icon
|
|
|
|
// Also missing: (Defined in the standard, but currently unused)
|
|
// audience, preview, endTime, startTime, generator, image
|
|
|
|
// Data in Notes:
|
|
|
|
// Unhandled
|
|
// contentMap, announcement_count, announcements, context_id, likes, like_count
|
|
// inReplyToStatusId, shares, quoteUrl, statusnetConversationId
|
|
|
|
// Data in video:
|
|
|
|
// To-Do?
|
|
// category, licence, language, commentsEnabled
|
|
|
|
// Unhandled
|
|
// views, waitTranscoding, state, support, subtitleLanguage
|
|
// likes, dislikes, shares, comments
|
|
|
|
return $object_data;
|
|
}
|
|
|
|
/**
|
|
* @brief Converts mentions from Pleroma into the Friendica format
|
|
*
|
|
* @param string $body
|
|
*
|
|
* @return converted body
|
|
*/
|
|
private static function convertMentions($body)
|
|
{
|
|
$URLSearchString = "^\[\]";
|
|
$body = preg_replace("/\[url\=([$URLSearchString]*)\]([#@!])(.*?)\[\/url\]/ism", '$2[url=$1]$3[/url]', $body);
|
|
|
|
return $body;
|
|
}
|
|
|
|
/**
|
|
* @brief Constructs a string with tags for a given tag array
|
|
*
|
|
* @param array $tags
|
|
* @param boolean $sensitive
|
|
*
|
|
* @return string with tags
|
|
*/
|
|
private static function constructTagList($tags, $sensitive)
|
|
{
|
|
if (empty($tags)) {
|
|
return '';
|
|
}
|
|
|
|
$tag_text = '';
|
|
foreach ($tags as $tag) {
|
|
if (in_array($tag['type'], ['Mention', 'Hashtag'])) {
|
|
if (!empty($tag_text)) {
|
|
$tag_text .= ',';
|
|
}
|
|
|
|
$tag_text .= substr($tag['name'], 0, 1) . '[url=' . $tag['href'] . ']' . substr($tag['name'], 1) . '[/url]';
|
|
}
|
|
}
|
|
|
|
/// @todo add nsfw for $sensitive
|
|
|
|
return $tag_text;
|
|
}
|
|
|
|
/**
|
|
* @brief
|
|
*
|
|
* @param $attachments
|
|
* @param array $item
|
|
*
|
|
* @return item array
|
|
*/
|
|
private static function constructAttachList($attachments, $item)
|
|
{
|
|
if (empty($attachments)) {
|
|
return $item;
|
|
}
|
|
|
|
foreach ($attachments as $attach) {
|
|
$filetype = strtolower(substr($attach['mediaType'], 0, strpos($attach['mediaType'], '/')));
|
|
if ($filetype == 'image') {
|
|
$item['body'] .= "\n[img]".$attach['url'].'[/img]';
|
|
} else {
|
|
if (!empty($item["attach"])) {
|
|
$item["attach"] .= ',';
|
|
} else {
|
|
$item["attach"] = '';
|
|
}
|
|
if (!isset($attach['length'])) {
|
|
$attach['length'] = "0";
|
|
}
|
|
$item["attach"] .= '[attach]href="'.$attach['url'].'" length="'.$attach['length'].'" type="'.$attach['mediaType'].'" title="'.defaults($attach, 'name', '').'"[/attach]';
|
|
}
|
|
}
|
|
|
|
return $item;
|
|
}
|
|
|
|
/**
|
|
* @brief
|
|
*
|
|
* @param array $activity
|
|
* @param $body
|
|
*/
|
|
private static function createItem($activity, $body)
|
|
{
|
|
$item = [];
|
|
$item['verb'] = ACTIVITY_POST;
|
|
$item['parent-uri'] = $activity['reply-to-id'];
|
|
|
|
if ($activity['reply-to-id'] == $activity['id']) {
|
|
$item['gravity'] = GRAVITY_PARENT;
|
|
$item['object-type'] = ACTIVITY_OBJ_NOTE;
|
|
} else {
|
|
$item['gravity'] = GRAVITY_COMMENT;
|
|
$item['object-type'] = ACTIVITY_OBJ_COMMENT;
|
|
}
|
|
|
|
if (($activity['id'] != $activity['reply-to-id']) && !Item::exists(['uri' => $activity['reply-to-id']])) {
|
|
logger('Parent ' . $activity['reply-to-id'] . ' not found. Try to refetch it.');
|
|
self::fetchMissingActivity($activity['reply-to-id'], $activity);
|
|
}
|
|
|
|
self::postItem($activity, $item, $body);
|
|
}
|
|
|
|
/**
|
|
* @brief
|
|
*
|
|
* @param array $activity
|
|
* @param $body
|
|
*/
|
|
private static function likeItem($activity, $body)
|
|
{
|
|
$item = [];
|
|
$item['verb'] = ACTIVITY_LIKE;
|
|
$item['parent-uri'] = $activity['object'];
|
|
$item['gravity'] = GRAVITY_ACTIVITY;
|
|
$item['object-type'] = ACTIVITY_OBJ_NOTE;
|
|
|
|
self::postItem($activity, $item, $body);
|
|
}
|
|
|
|
/**
|
|
* @brief
|
|
*
|
|
* @param array $activity
|
|
* @param $body
|
|
*/
|
|
private static function dislikeItem($activity, $body)
|
|
{
|
|
$item = [];
|
|
$item['verb'] = ACTIVITY_DISLIKE;
|
|
$item['parent-uri'] = $activity['object'];
|
|
$item['gravity'] = GRAVITY_ACTIVITY;
|
|
$item['object-type'] = ACTIVITY_OBJ_NOTE;
|
|
|
|
self::postItem($activity, $item, $body);
|
|
}
|
|
|
|
/**
|
|
* @brief
|
|
*
|
|
* @param array $activity
|
|
* @param array $item
|
|
* @param $body
|
|
*/
|
|
private static function postItem($activity, $item, $body)
|
|
{
|
|
/// @todo What to do with $activity['context']?
|
|
|
|
if (($item['gravity'] != GRAVITY_PARENT) && !Item::exists(['uri' => $item['parent-uri']])) {
|
|
logger('Parent ' . $item['parent-uri'] . ' not found, message will be discarded.', LOGGER_DEBUG);
|
|
return;
|
|
}
|
|
|
|
$item['network'] = Protocol::ACTIVITYPUB;
|
|
$item['private'] = !in_array(0, $activity['receiver']);
|
|
$item['author-id'] = Contact::getIdForURL($activity['author'], 0, true);
|
|
$item['owner-id'] = Contact::getIdForURL($activity['owner'], 0, true);
|
|
$item['uri'] = $activity['id'];
|
|
$item['created'] = $activity['published'];
|
|
$item['edited'] = $activity['updated'];
|
|
$item['guid'] = $activity['diaspora:guid'];
|
|
$item['title'] = HTML::toBBCode($activity['name']);
|
|
$item['content-warning'] = HTML::toBBCode($activity['summary']);
|
|
$item['body'] = self::convertMentions(HTML::toBBCode($activity['content']));
|
|
$item['location'] = $activity['location'];
|
|
$item['tag'] = self::constructTagList($activity['tags'], $activity['sensitive']);
|
|
$item['app'] = $activity['service'];
|
|
$item['plink'] = defaults($activity, 'alternate-url', $item['uri']);
|
|
|
|
$item = self::constructAttachList($activity['attachments'], $item);
|
|
|
|
$source = JsonLD::fetchElement($activity, 'source', 'content', 'mediaType', 'text/bbcode');
|
|
if (!empty($source)) {
|
|
$item['body'] = $source;
|
|
}
|
|
|
|
$item['protocol'] = Conversation::PARCEL_ACTIVITYPUB;
|
|
$item['source'] = $body;
|
|
$item['conversation-href'] = $activity['context'];
|
|
$item['conversation-uri'] = $activity['conversation'];
|
|
|
|
foreach ($activity['receiver'] as $receiver) {
|
|
$item['uid'] = $receiver;
|
|
$item['contact-id'] = Contact::getIdForURL($activity['author'], $receiver, true);
|
|
|
|
if (($receiver != 0) && empty($item['contact-id'])) {
|
|
$item['contact-id'] = Contact::getIdForURL($activity['author'], 0, true);
|
|
}
|
|
|
|
$item_id = Item::insert($item);
|
|
logger('Storing for user ' . $item['uid'] . ': ' . $item_id);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief
|
|
*
|
|
* @param $url
|
|
* @param $child
|
|
*/
|
|
private static function fetchMissingActivity($url, $child)
|
|
{
|
|
if (Config::get('system', 'ostatus_full_threads')) {
|
|
return;
|
|
}
|
|
|
|
$object = ActivityPub::fetchContent($url);
|
|
if (empty($object)) {
|
|
logger('Activity ' . $url . ' was not fetchable, aborting.');
|
|
return;
|
|
}
|
|
|
|
$activity = [];
|
|
$activity['@context'] = $object['@context'];
|
|
unset($object['@context']);
|
|
$activity['id'] = $object['id'];
|
|
$activity['to'] = defaults($object, 'to', []);
|
|
$activity['cc'] = defaults($object, 'cc', []);
|
|
$activity['actor'] = $child['author'];
|
|
$activity['object'] = $object;
|
|
$activity['published'] = $object['published'];
|
|
$activity['type'] = 'Create';
|
|
|
|
self::processActivity($activity);
|
|
logger('Activity ' . $url . ' had been fetched and processed.');
|
|
}
|
|
|
|
/**
|
|
* @brief perform a "follow" request
|
|
*
|
|
* @param array $activity
|
|
*/
|
|
private static function followUser($activity)
|
|
{
|
|
$actor = JsonLD::fetchElement($activity, 'object', 'id');
|
|
$uid = User::getIdForURL($actor);
|
|
if (empty($uid)) {
|
|
return;
|
|
}
|
|
|
|
$owner = User::getOwnerDataById($uid);
|
|
|
|
$cid = Contact::getIdForURL($activity['owner'], $uid);
|
|
if (!empty($cid)) {
|
|
$contact = DBA::selectFirst('contact', [], ['id' => $cid]);
|
|
} else {
|
|
$contact = false;
|
|
}
|
|
|
|
$item = ['author-id' => Contact::getIdForURL($activity['owner']),
|
|
'author-link' => $activity['owner']];
|
|
|
|
Contact::addRelationship($owner, $contact, $item);
|
|
$cid = Contact::getIdForURL($activity['owner'], $uid);
|
|
if (empty($cid)) {
|
|
return;
|
|
}
|
|
|
|
$contact = DBA::selectFirst('contact', ['network'], ['id' => $cid]);
|
|
if ($contact['network'] != Protocol::ACTIVITYPUB) {
|
|
Contact::updateFromProbe($cid, Protocol::ACTIVITYPUB);
|
|
}
|
|
|
|
DBA::update('contact', ['hub-verify' => $activity['id']], ['id' => $cid]);
|
|
logger('Follow user ' . $uid . ' from contact ' . $cid . ' with id ' . $activity['id']);
|
|
}
|
|
|
|
/**
|
|
* @brief Update the given profile
|
|
*
|
|
* @param array $activity
|
|
*/
|
|
private static function updatePerson($activity)
|
|
{
|
|
if (empty($activity['object']['id'])) {
|
|
return;
|
|
}
|
|
|
|
logger('Updating profile for ' . $activity['object']['id'], LOGGER_DEBUG);
|
|
APContact::getProfileByURL($activity['object']['id'], true);
|
|
}
|
|
|
|
/**
|
|
* @brief Accept a follow request
|
|
*
|
|
* @param array $activity
|
|
*/
|
|
private static function acceptFollowUser($activity)
|
|
{
|
|
$actor = JsonLD::fetchElement($activity, 'object', 'actor');
|
|
$uid = User::getIdForURL($actor);
|
|
if (empty($uid)) {
|
|
return;
|
|
}
|
|
|
|
$owner = User::getOwnerDataById($uid);
|
|
|
|
$cid = Contact::getIdForURL($activity['owner'], $uid);
|
|
if (empty($cid)) {
|
|
logger('No contact found for ' . $activity['owner'], LOGGER_DEBUG);
|
|
return;
|
|
}
|
|
|
|
$fields = ['pending' => false];
|
|
|
|
$contact = DBA::selectFirst('contact', ['rel'], ['id' => $cid]);
|
|
if ($contact['rel'] == Contact::FOLLOWER) {
|
|
$fields['rel'] = Contact::FRIEND;
|
|
}
|
|
|
|
$condition = ['id' => $cid];
|
|
DBA::update('contact', $fields, $condition);
|
|
logger('Accept contact request from contact ' . $cid . ' for user ' . $uid, LOGGER_DEBUG);
|
|
}
|
|
|
|
/**
|
|
* @brief Undo activity like "like" or "dislike"
|
|
*
|
|
* @param array $activity
|
|
*/
|
|
private static function undoActivity($activity)
|
|
{
|
|
$activity_url = JsonLD::fetchElement($activity, 'object', 'id');
|
|
if (empty($activity_url)) {
|
|
return;
|
|
}
|
|
|
|
$actor = JsonLD::fetchElement($activity, 'object', 'actor');
|
|
if (empty($actor)) {
|
|
return;
|
|
}
|
|
|
|
$author_id = Contact::getIdForURL($actor);
|
|
if (empty($author_id)) {
|
|
return;
|
|
}
|
|
|
|
Item::delete(['uri' => $activity_url, 'author-id' => $author_id, 'gravity' => GRAVITY_ACTIVITY]);
|
|
}
|
|
|
|
/**
|
|
* @brief Activity to remove a follower
|
|
*
|
|
* @param array $activity
|
|
*/
|
|
private static function undoFollowUser($activity)
|
|
{
|
|
$object = JsonLD::fetchElement($activity, 'object', 'object');
|
|
$uid = User::getIdForURL($object);
|
|
if (empty($uid)) {
|
|
return;
|
|
}
|
|
|
|
$owner = User::getOwnerDataById($uid);
|
|
|
|
$cid = Contact::getIdForURL($activity['owner'], $uid);
|
|
if (empty($cid)) {
|
|
logger('No contact found for ' . $activity['owner'], LOGGER_DEBUG);
|
|
return;
|
|
}
|
|
|
|
$contact = DBA::selectFirst('contact', [], ['id' => $cid]);
|
|
if (!DBA::isResult($contact)) {
|
|
return;
|
|
}
|
|
|
|
Contact::removeFollower($owner, $contact);
|
|
logger('Undo following request from contact ' . $cid . ' for user ' . $uid, LOGGER_DEBUG);
|
|
}
|
|
}
|