141 lines
4.8 KiB
PHP
Executable File
141 lines
4.8 KiB
PHP
Executable File
<?php
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/**
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* GNU social - a federating social network
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*
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* ActivityPubPlugin implementation for GNU Social
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*
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* LICENCE: This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* @category Plugin
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* @package GNUsocial
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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* @author Daniel Supernault <danielsupernault@gmail.com>
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* @copyright 2018 Free Software Foundation http://fsf.org
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link https://www.gnu.org/software/social/
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*/
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if (!defined('GNUSOCIAL')) {
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exit(1);
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}
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$valid_object_types = ['Note'];
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// Validate data
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if (!isset($data->object->id)) {
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ActivityPubReturn::error('Object ID not specified.');
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} elseif (!filter_var($data->object->id, FILTER_VALIDATE_URL)) {
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ActivityPubReturn::error('Invalid Object ID.');
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}
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if (!(isset($data->object->type) && in_array($data->object->type, $valid_object_types))) {
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ActivityPubReturn::error('Invalid Object type.');
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}
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if (!isset($data->object->content)) {
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ActivityPubReturn::error('Object content was not specified.');
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}
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if (!isset($data->object->url)) {
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ActivityPubReturn::error('Object url was not specified.');
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} elseif (!filter_var($data->object->url, FILTER_VALIDATE_URL)) {
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ActivityPubReturn::error('Invalid Object URL.');
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}
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if (!isset($data->object->to)) {
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ActivityPubReturn::error('Object To was not specified.');
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}
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$content = $data->object->content;
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$act = new Activity();
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$act->verb = ActivityVerb::POST;
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$act->time = time();
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$act->actor = $actor_profile->asActivityObject();
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$act->context = new ActivityContext();
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// Is this a reply?
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if (isset($data->object->inReplyTo)) {
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try {
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$inReplyTo = ActivityPubPlugin::get_local_notice_from_url($data->object->inReplyTo);
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} catch (Exception $e) {
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ActivityPubReturn::error('Invalid Object inReplyTo value.');
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}
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$act->context->replyToID = $inReplyTo->getUri();
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$act->context->replyToUrl = $inReplyTo->getUrl();
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} else {
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$inReplyTo = null;
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}
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$discovery = new Activitypub_explorer;
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if ($to_profiles == ['https://www.w3.org/ns/activitystreams#Public']) {
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$to_profiles = [];
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}
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// Generate Cc objects
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if (isset($data->object->cc) && is_array($data->object->cc)) {
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// Remove duplicates from Cc actors set
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array_unique($data->object->to);
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foreach ($data->object->cc as $cc_url) {
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try {
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$to_profiles = array_merge($to_profiles, $discovery->lookup($cc_url));
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} catch (Exception $e) {
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// Invalid actor found, just let it go.
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}
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}
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} elseif (empty($data->object->cc) || in_array($data->object->cc, $public_to)) {
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// No need to do anything else at this point, let's just break out the if
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} else {
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try {
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$to_profiles = array_merge($to_profiles, $discovery->lookup($data->object->cc));
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} catch (Exception $e) {
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// Invalid actor found, just let it go.
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}
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}
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unset($discovery);
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foreach ($to_profiles as $tp) {
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$act->context->attention[ActivityPubPlugin::actor_uri($tp)] = 'http://activitystrea.ms/schema/1.0/person';
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}
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// Add location if that is set
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if (isset($data->object->latitude, $data->object->longitude)) {
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$act->context->location = Location::fromLatLon($data->object->latitude, $data->object->longitude);
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}
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// Reject notice if it is too long (without the HTML)
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if (Notice::contentTooLong($content)) {
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ActivityPubReturn::error("That's too long. Maximum notice size is %d character.");
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}
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$options = array('source' => 'ActivityPub', 'uri' => $data->object->id, 'url' => $data->object->url);
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// $options gets filled with possible scoping settings
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ToSelector::fillActivity($this, $act, $options);
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$actobj = new ActivityObject();
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$actobj->type = ActivityObject::NOTE;
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$actobj->content = strip_tags($content,'<p><b><i><u><a><ul><ol><li>');
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// Finally add the activity object to our activity
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$act->objects[] = $actobj;
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try {
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$res = Activitypub_create::create_to_array(
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$data->id,
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$data->actor,
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Activitypub_notice::notice_to_array(Notice::saveActivity($act, $actor_profile, $options))
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);
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ActivityPubReturn::answer($res);
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} catch (Exception $e) {
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ActivityPubReturn::error($e->getMessage());
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}
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