1878 lines
		
	
	
	
		
			54 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			1878 lines
		
	
	
	
		
			54 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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/**
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 * @copyright Copyright (C) 2020, Friendica
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 *
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 * @license GNU AGPL version 3 or any later version
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 *
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 * 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
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 * published by the Free Software Foundation, either version 3 of the
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 * License, or (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 <https://www.gnu.org/licenses/>.
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 *
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 */
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namespace Friendica\Protocol\ActivityPub;
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use Friendica\Content\Feature;
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use Friendica\Content\Text\BBCode;
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use Friendica\Content\Text\Plaintext;
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use Friendica\Core\Cache\Duration;
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use Friendica\Core\Logger;
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use Friendica\Core\Protocol;
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use Friendica\Core\System;
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use Friendica\Database\DBA;
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use Friendica\DI;
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use Friendica\Model\APContact;
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use Friendica\Model\Contact;
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use Friendica\Model\Conversation;
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use Friendica\Model\Item;
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use Friendica\Model\ItemURI;
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use Friendica\Model\Profile;
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use Friendica\Model\Photo;
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use Friendica\Model\Tag;
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use Friendica\Model\User;
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use Friendica\Protocol\Activity;
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use Friendica\Protocol\ActivityPub;
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use Friendica\Util\DateTimeFormat;
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use Friendica\Util\HTTPSignature;
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use Friendica\Util\Images;
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use Friendica\Util\JsonLD;
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use Friendica\Util\LDSignature;
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use Friendica\Util\Map;
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use Friendica\Util\Network;
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use Friendica\Util\XML;
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require_once 'include/api.php';
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require_once 'mod/share.php';
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/**
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 * ActivityPub Transmitter Protocol class
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 *
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 * To-Do:
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 * @todo Undo Announce
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 */
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class Transmitter
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{
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	/**
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	 * Collects a list of contacts of the given owner
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	 *
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	 * @param array     $owner  Owner array
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	 * @param int|array $rel    The relevant value(s) contact.rel should match
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	 * @param string    $module The name of the relevant AP endpoint module (followers|following)
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	 * @param integer   $page   Page number
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	 *
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	 * @return array of owners
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	 * @throws \Exception
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	 */
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	public static function getContacts($owner, $rel, $module, $page = null)
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	{
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		$parameters = [
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			'rel' => $rel,
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			'uid' => $owner['uid'],
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			'self' => false,
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			'deleted' => false,
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			'hidden' => false,
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			'archive' => false,
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			'pending' => false
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		];
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		$condition = DBA::buildCondition($parameters);
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		$sql = "SELECT COUNT(*) as `count`
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			FROM `contact`
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			JOIN `apcontact` ON `apcontact`.`url` = `contact`.`url`
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			" . $condition;
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		$contacts = DBA::fetchFirst($sql, ...$parameters);
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		$modulePath = '/' . $module . '/';
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		$data = ['@context' => ActivityPub::CONTEXT];
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		$data['id'] = DI::baseUrl() . $modulePath . $owner['nickname'];
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		$data['type'] = 'OrderedCollection';
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		$data['totalItems'] = $contacts['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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		$profile = Profile::getByUID($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'] = DI::baseUrl() . $modulePath . $owner['nickname'] . '?page=1';
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		} else {
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			$data['type'] = 'OrderedCollectionPage';
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			$list = [];
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			$sql = "SELECT `contact`.`url`
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				FROM `contact`
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				JOIN `apcontact` ON `apcontact`.`url` = `contact`.`url`
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				" . $condition . "
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				LIMIT ?, ?";
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			$parameters[] = ($page - 1) * 100;
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			$parameters[] = 100;
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			$contacts = DBA::p($sql, ...$parameters);
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			while ($contact = DBA::fetch($contacts)) {
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				$list[] = $contact['url'];
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			}
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			DBA::close($contacts);
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			if (!empty($list)) {
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				$data['next'] = DI::baseUrl() . $modulePath . $owner['nickname'] . '?page=' . ($page + 1);
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			}
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			$data['partOf'] = DI::baseUrl() . $modulePath . $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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	 * 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 $page  Page numbe
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	 *
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	 * @return array of posts
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	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
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	 * @throws \ImagickException
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	 */
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	public static function getOutbox($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' => 0, 'contact-id' => $public_contact, 'author-id' => $public_contact,
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			'private' => [Item::PUBLIC, Item::UNLISTED], 'gravity' => [GRAVITY_PARENT, GRAVITY_COMMENT],
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			'deleted' => false, 'visible' => true, 'moderated' => false];
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		$count = DBA::count('item', $condition);
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		$data = ['@context' => ActivityPub::CONTEXT];
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		$data['id'] = DI::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'] = DI::baseUrl() . '/outbox/' . $owner['nickname'] . '?page=1';
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		} else {
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			$data['type'] = 'OrderedCollectionPage';
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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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				$activity = self::createActivityFromItem($item['id'], true);
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				$activity['type'] = $activity['type'] == 'Update' ? 'Create' : $activity['type'];
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				// Only list "Create" activity objects here, no reshares
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				if (!empty($activity['object']) && ($activity['type'] == 'Create')) {
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					$list[] = $activity['object'];
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				}
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			}
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			if (!empty($list)) {
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				$data['next'] = DI::baseUrl() . '/outbox/' . $owner['nickname'] . '?page=' . ($page + 1);
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			}
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			$data['partOf'] = DI::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 service array containing information the used software and it's url
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	 *
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	 * @return array with service data
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	 */
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	private static function getService()
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	{
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		return ['type' => 'Service',
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			'name' =>  FRIENDICA_PLATFORM . " '" . FRIENDICA_CODENAME . "' " . FRIENDICA_VERSION . '-' . DB_UPDATE_VERSION,
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			'url' => DI::baseUrl()->get()];
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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 $uid User ID
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	 * @return array with profile data
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	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
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	 */
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	public static function getProfile($uid)
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	{
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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' => $uid]);
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		if (!DBA::isResult($profile)) {
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			return [];
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		}
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		$fields = ['name', 'url', 'location', 'about', 'avatar', 'photo'];
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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' => ActivityPub::CONTEXT];
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		$data['id'] = $contact['url'];
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		$data['diaspora:guid'] = $user['guid'];
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		$data['type'] = ActivityPub::ACCOUNT_TYPES[$user['account-type']];
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		$data['following'] = DI::baseUrl() . '/following/' . $user['nickname'];
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		$data['followers'] = DI::baseUrl() . '/followers/' . $user['nickname'];
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		$data['inbox'] = DI::baseUrl() . '/inbox/' . $user['nickname'];
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		$data['outbox'] = DI::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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		$data['summary'] = BBCode::convert($contact['about'], false);
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		$data['url'] = $contact['url'];
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		$data['manuallyApprovesFollowers'] = in_array($user['page-flags'], [User::PAGE_FLAGS_NORMAL, User::PAGE_FLAGS_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' => DI::baseUrl() . '/inbox'];
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		$data['icon'] = ['type' => 'Image',
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			'url' => $contact['photo']];
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		$data['generator'] = self::getService();
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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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	 * @param string $username
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	 * @return array
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	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
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	 */
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	public static function getDeletedUser($username)
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	{
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		return [
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			'@context' => ActivityPub::CONTEXT,
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			'id' => DI::baseUrl() . '/profile/' . $username,
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			'type' => 'Tombstone',
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			'published' => DateTimeFormat::utcNow(DateTimeFormat::ATOM),
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			'updated' => DateTimeFormat::utcNow(DateTimeFormat::ATOM),
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			'deleted' => DateTimeFormat::utcNow(DateTimeFormat::ATOM),
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		];
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	}
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	/**
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	 * Returns an array with permissions of a given item array
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	 *
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	 * @param array $item
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	 *
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	 * @return array with permissions
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	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
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	 * @throws \ImagickException
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	 */
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	private static function fetchPermissionBlockFromConversation($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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		$profile = APContact::getByURL($actor);
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		$item_profile = APContact::getByURL($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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		foreach (['to', 'cc', 'bto', 'bcc'] 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 $receiver) {
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				if (empty($receiver)) {
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					continue;
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				}
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				if (!empty($profile['followers']) && $receiver == $profile['followers'] && !empty($item_profile['followers'])) {
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					$permissions[$element][] = $item_profile['followers'];
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				} elseif (!in_array($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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	/**
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	 * Creates an array of permissions from an item thread
 | 
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	 *
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	 * @param array   $item       Item array
 | 
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	 * @param boolean $blindcopy  addressing via "bcc" or "cc"?
 | 
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	 * @param integer $last_id    Last item id for adding receivers
 | 
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	 * @param boolean $forum_mode "true" means that we are sending content to a forum
 | 
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	 *
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	 * @return array with permission data
 | 
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	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 | 
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	 * @throws \ImagickException
 | 
						|
	 */
 | 
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	private static function createPermissionBlockForItem($item, $blindcopy, $last_id = 0, $forum_mode = false)
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	{
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		if ($last_id == 0) {
 | 
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			$last_id = $item['id'];
 | 
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		}
 | 
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 | 
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		$always_bcc = false;
 | 
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 | 
						|
		// Check if we should always deliver our stuff via BCC
 | 
						|
		if (!empty($item['uid'])) {
 | 
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			$profile = Profile::getByUID($item['uid']);
 | 
						|
			if (!empty($profile)) {
 | 
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				$always_bcc = $profile['hide-friends'];
 | 
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			}
 | 
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		}
 | 
						|
 | 
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		if (DI::config()->get('system', 'ap_always_bcc')) {
 | 
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			$always_bcc = true;
 | 
						|
		}
 | 
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 | 
						|
		if (self::isAnnounce($item) || DI::config()->get('debug', 'total_ap_delivery')) {
 | 
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			// Will be activated in a later step
 | 
						|
			$networks = Protocol::FEDERATED;
 | 
						|
		} else {
 | 
						|
			// For now only send to these contacts:
 | 
						|
			$networks = [Protocol::ACTIVITYPUB, Protocol::OSTATUS];
 | 
						|
		}
 | 
						|
 | 
						|
		$data = ['to' => [], 'cc' => [], 'bcc' => []];
 | 
						|
 | 
						|
		if ($item['gravity'] == GRAVITY_PARENT) {
 | 
						|
			$actor_profile = APContact::getByURL($item['owner-link']);
 | 
						|
		} else {
 | 
						|
			$actor_profile = APContact::getByURL($item['author-link']);
 | 
						|
		}
 | 
						|
 | 
						|
		$terms = Tag::getByURIId($item['uri-id'], [Tag::MENTION, Tag::IMPLICIT_MENTION, Tag::EXCLUSIVE_MENTION]);
 | 
						|
 | 
						|
		if ($item['private'] != Item::PRIVATE) {
 | 
						|
			// Directly mention the original author upon a quoted reshare.
 | 
						|
			// Else just ensure that the original author receives the reshare.
 | 
						|
			$announce = self::getAnnounceArray($item);
 | 
						|
			if (!empty($announce['comment'])) {
 | 
						|
				$data['to'][] = $announce['actor']['url'];
 | 
						|
			} elseif (!empty($announce)) {
 | 
						|
				$data['cc'][] = $announce['actor']['url'];
 | 
						|
			}
 | 
						|
 | 
						|
			$data = array_merge($data, self::fetchPermissionBlockFromConversation($item));
 | 
						|
 | 
						|
			// Check if the item is completely public or unlisted
 | 
						|
			if ($item['private'] == Item::PUBLIC) {
 | 
						|
				$data['to'][] = ActivityPub::PUBLIC_COLLECTION;
 | 
						|
			} else {
 | 
						|
				$data['cc'][] = ActivityPub::PUBLIC_COLLECTION;
 | 
						|
			}
 | 
						|
 | 
						|
			foreach ($terms as $term) {
 | 
						|
				$profile = APContact::getByURL($term['url'], false);
 | 
						|
				if (!empty($profile)) {
 | 
						|
					$data['to'][] = $profile['url'];
 | 
						|
				}
 | 
						|
			}
 | 
						|
		} else {
 | 
						|
			$receiver_list = Item::enumeratePermissions($item, true);
 | 
						|
 | 
						|
			foreach ($terms as $term) {
 | 
						|
				$cid = Contact::getIdForURL($term['url'], $item['uid']);
 | 
						|
				if (!empty($cid) && in_array($cid, $receiver_list)) {
 | 
						|
					$contact = DBA::selectFirst('contact', ['url', 'network', 'protocol'], ['id' => $cid]);
 | 
						|
					if (!DBA::isResult($contact) || (!in_array($contact['network'], $networks) && ($contact['protocol'] != Protocol::ACTIVITYPUB))) {
 | 
						|
						continue;
 | 
						|
					}
 | 
						|
 | 
						|
					if (!empty($profile = APContact::getByURL($contact['url'], false))) {
 | 
						|
						$data['to'][] = $profile['url'];
 | 
						|
					}
 | 
						|
				}
 | 
						|
			}
 | 
						|
 | 
						|
			foreach ($receiver_list as $receiver) {
 | 
						|
				$contact = DBA::selectFirst('contact', ['url', 'hidden', 'network', 'protocol'], ['id' => $receiver]);
 | 
						|
				if (!DBA::isResult($contact) || (!in_array($contact['network'], $networks) && ($contact['protocol'] != Protocol::ACTIVITYPUB))) {
 | 
						|
					continue;
 | 
						|
				}
 | 
						|
 | 
						|
				if (!empty($profile = APContact::getByURL($contact['url'], false))) {
 | 
						|
					if ($contact['hidden'] || $always_bcc) {
 | 
						|
						$data['bcc'][] = $profile['url'];
 | 
						|
					} else {
 | 
						|
						$data['cc'][] = $profile['url'];
 | 
						|
					}
 | 
						|
				}
 | 
						|
			}
 | 
						|
		}
 | 
						|
 | 
						|
		if (!empty($item['parent'])) {
 | 
						|
			$parents = Item::select(['id', 'author-link', 'owner-link', 'gravity', 'uri'], ['parent' => $item['parent']]);
 | 
						|
			while ($parent = Item::fetch($parents)) {
 | 
						|
				if ($parent['gravity'] == GRAVITY_PARENT) {
 | 
						|
					$profile = APContact::getByURL($parent['owner-link'], false);
 | 
						|
					if (!empty($profile)) {
 | 
						|
						if ($item['gravity'] != GRAVITY_PARENT) {
 | 
						|
							// Comments to forums are directed to the forum
 | 
						|
							// But comments to forums aren't directed to the followers collection
 | 
						|
							if ($profile['type'] == 'Group') {
 | 
						|
								$data['to'][] = $profile['url'];
 | 
						|
							} else {
 | 
						|
								$data['cc'][] = $profile['url'];
 | 
						|
								if (($item['private'] != Item::PRIVATE) && !empty($actor_profile['followers'])) {
 | 
						|
									$data['cc'][] = $actor_profile['followers'];
 | 
						|
								}
 | 
						|
							}
 | 
						|
						} else {
 | 
						|
							// Public thread parent post always are directed to the followers
 | 
						|
							if (($item['private'] != Item::PRIVATE) && !$forum_mode) {
 | 
						|
								$data['cc'][] = $actor_profile['followers'];
 | 
						|
							}
 | 
						|
						}
 | 
						|
					}
 | 
						|
				}
 | 
						|
 | 
						|
				// Don't include data from future posts
 | 
						|
				if ($parent['id'] >= $last_id) {
 | 
						|
					continue;
 | 
						|
				}
 | 
						|
 | 
						|
				$profile = APContact::getByURL($parent['author-link'], false);
 | 
						|
				if (!empty($profile)) {
 | 
						|
					if (($profile['type'] == 'Group') || ($parent['uri'] == $item['thr-parent'])) {
 | 
						|
						$data['to'][] = $profile['url'];
 | 
						|
					} else {
 | 
						|
						$data['cc'][] = $profile['url'];
 | 
						|
					}
 | 
						|
				}
 | 
						|
			}
 | 
						|
			DBA::close($parents);
 | 
						|
		}
 | 
						|
 | 
						|
		$data['to'] = array_unique($data['to']);
 | 
						|
		$data['cc'] = array_unique($data['cc']);
 | 
						|
		$data['bcc'] = array_unique($data['bcc']);
 | 
						|
 | 
						|
		if (($key = array_search($item['author-link'], $data['to'])) !== false) {
 | 
						|
			unset($data['to'][$key]);
 | 
						|
		}
 | 
						|
 | 
						|
		if (($key = array_search($item['author-link'], $data['cc'])) !== false) {
 | 
						|
			unset($data['cc'][$key]);
 | 
						|
		}
 | 
						|
 | 
						|
		if (($key = array_search($item['author-link'], $data['bcc'])) !== false) {
 | 
						|
			unset($data['bcc'][$key]);
 | 
						|
		}
 | 
						|
 | 
						|
		foreach ($data['to'] as $to) {
 | 
						|
			if (($key = array_search($to, $data['cc'])) !== false) {
 | 
						|
				unset($data['cc'][$key]);
 | 
						|
			}
 | 
						|
 | 
						|
			if (($key = array_search($to, $data['bcc'])) !== false) {
 | 
						|
				unset($data['bcc'][$key]);
 | 
						|
			}
 | 
						|
		}
 | 
						|
 | 
						|
		foreach ($data['cc'] as $cc) {
 | 
						|
			if (($key = array_search($cc, $data['bcc'])) !== false) {
 | 
						|
				unset($data['bcc'][$key]);
 | 
						|
			}
 | 
						|
		}
 | 
						|
 | 
						|
		$receivers = ['to' => array_values($data['to']), 'cc' => array_values($data['cc']), 'bcc' => array_values($data['bcc'])];
 | 
						|
 | 
						|
		if (!$blindcopy) {
 | 
						|
			unset($receivers['bcc']);
 | 
						|
		}
 | 
						|
 | 
						|
		return $receivers;
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Check if an inbox is archived
 | 
						|
	 *
 | 
						|
	 * @param string $url Inbox url
 | 
						|
	 *
 | 
						|
	 * @return boolean "true" if inbox is archived
 | 
						|
	 */
 | 
						|
	private static function archivedInbox($url)
 | 
						|
	{
 | 
						|
		return DBA::exists('inbox-status', ['url' => $url, 'archive' => true]);
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Fetches a list of inboxes of followers of a given user
 | 
						|
	 *
 | 
						|
	 * @param integer $uid      User ID
 | 
						|
	 * @param boolean $personal fetch personal inboxes
 | 
						|
	 *
 | 
						|
	 * @return array of follower inboxes
 | 
						|
	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 | 
						|
	 * @throws \ImagickException
 | 
						|
	 */
 | 
						|
	public static function fetchTargetInboxesforUser($uid, $personal = false)
 | 
						|
	{
 | 
						|
		$inboxes = [];
 | 
						|
 | 
						|
		if (DI::config()->get('debug', 'total_ap_delivery')) {
 | 
						|
			// Will be activated in a later step
 | 
						|
			$networks = Protocol::FEDERATED;
 | 
						|
		} else {
 | 
						|
			// For now only send to these contacts:
 | 
						|
			$networks = [Protocol::ACTIVITYPUB, Protocol::OSTATUS];
 | 
						|
		}
 | 
						|
 | 
						|
		$condition = ['uid' => $uid, 'archive' => false, 'pending' => false];
 | 
						|
 | 
						|
		if (!empty($uid)) {
 | 
						|
			$condition['rel'] = [Contact::FOLLOWER, Contact::FRIEND];
 | 
						|
		}
 | 
						|
 | 
						|
		$contacts = DBA::select('contact', ['url', 'network', 'protocol'], $condition);
 | 
						|
		while ($contact = DBA::fetch($contacts)) {
 | 
						|
			if (Contact::isLocal($contact['url'])) {
 | 
						|
				continue;
 | 
						|
			}
 | 
						|
 | 
						|
			if (!in_array($contact['network'], $networks) && ($contact['protocol'] != Protocol::ACTIVITYPUB)) {
 | 
						|
				continue;
 | 
						|
			}
 | 
						|
 | 
						|
			if (Network::isUrlBlocked($contact['url'])) {
 | 
						|
				continue;
 | 
						|
			}
 | 
						|
 | 
						|
			$profile = APContact::getByURL($contact['url'], false);
 | 
						|
			if (!empty($profile)) {
 | 
						|
				if (empty($profile['sharedinbox']) || $personal) {
 | 
						|
					$target = $profile['inbox'];
 | 
						|
				} else {
 | 
						|
					$target = $profile['sharedinbox'];
 | 
						|
				}
 | 
						|
				if (!self::archivedInbox($target)) {
 | 
						|
					$inboxes[$target] = $target;
 | 
						|
				}
 | 
						|
			}
 | 
						|
		}
 | 
						|
		DBA::close($contacts);
 | 
						|
 | 
						|
		return $inboxes;
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Fetches an array of inboxes for the given item and user
 | 
						|
	 *
 | 
						|
	 * @param array   $item       Item array
 | 
						|
	 * @param integer $uid        User ID
 | 
						|
	 * @param boolean $personal   fetch personal inboxes
 | 
						|
	 * @param integer $last_id    Last item id for adding receivers
 | 
						|
	 * @param boolean $forum_mode "true" means that we are sending content to a forum
 | 
						|
	 * @return array with inboxes
 | 
						|
	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 | 
						|
	 * @throws \ImagickException
 | 
						|
	 */
 | 
						|
	public static function fetchTargetInboxes($item, $uid, $personal = false, $last_id = 0, $forum_mode = false)
 | 
						|
	{
 | 
						|
		$permissions = self::createPermissionBlockForItem($item, true, $last_id, $forum_mode);
 | 
						|
		if (empty($permissions)) {
 | 
						|
			return [];
 | 
						|
		}
 | 
						|
 | 
						|
		$inboxes = [];
 | 
						|
 | 
						|
		if ($item['gravity'] == GRAVITY_ACTIVITY) {
 | 
						|
			$item_profile = APContact::getByURL($item['author-link'], false);
 | 
						|
		} else {
 | 
						|
			$item_profile = APContact::getByURL($item['owner-link'], false);
 | 
						|
		}
 | 
						|
 | 
						|
		foreach (['to', 'cc', 'bto', 'bcc'] as $element) {
 | 
						|
			if (empty($permissions[$element])) {
 | 
						|
				continue;
 | 
						|
			}
 | 
						|
 | 
						|
			$blindcopy = in_array($element, ['bto', 'bcc']);
 | 
						|
 | 
						|
			foreach ($permissions[$element] as $receiver) {
 | 
						|
				if (empty($receiver) || Network::isUrlBlocked($receiver)) {
 | 
						|
					continue;
 | 
						|
				}
 | 
						|
 | 
						|
				if ($item_profile && $receiver == $item_profile['followers']) {
 | 
						|
					$inboxes = array_merge($inboxes, self::fetchTargetInboxesforUser($uid, $personal));
 | 
						|
				} else {
 | 
						|
					if (Contact::isLocal($receiver)) {
 | 
						|
						continue;
 | 
						|
					}
 | 
						|
 | 
						|
					$profile = APContact::getByURL($receiver, false);
 | 
						|
					if (!empty($profile)) {
 | 
						|
						if (empty($profile['sharedinbox']) || $personal || $blindcopy) {
 | 
						|
							$target = $profile['inbox'];
 | 
						|
						} else {
 | 
						|
							$target = $profile['sharedinbox'];
 | 
						|
						}
 | 
						|
						if (!self::archivedInbox($target)) {
 | 
						|
							$inboxes[$target] = $target;
 | 
						|
						}
 | 
						|
					}
 | 
						|
				}
 | 
						|
			}
 | 
						|
		}
 | 
						|
 | 
						|
		return $inboxes;
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Creates an array in the structure of the item table for a given mail id
 | 
						|
	 *
 | 
						|
	 * @param integer $mail_id
 | 
						|
	 *
 | 
						|
	 * @return array
 | 
						|
	 * @throws \Exception
 | 
						|
	 */
 | 
						|
	public static function ItemArrayFromMail($mail_id)
 | 
						|
	{
 | 
						|
		$mail = DBA::selectFirst('mail', [], ['id' => $mail_id]);
 | 
						|
		if (!DBA::isResult($mail)) {
 | 
						|
			return [];
 | 
						|
		}
 | 
						|
 | 
						|
		$mail['uri-id'] = ItemURI::insert(['uri' => $mail['uri'], 'guid' => $mail['guid']]);
 | 
						|
 | 
						|
		$reply = DBA::selectFirst('mail', ['uri'], ['parent-uri' => $mail['parent-uri'], 'reply' => false]);
 | 
						|
 | 
						|
		// Making the post more compatible for Mastodon by:
 | 
						|
		// - Making it a note and not an article (no title)
 | 
						|
		// - Moving the title into the "summary" field that is used as a "content warning"
 | 
						|
		$mail['body'] = '[abstract]' . $mail['title'] . "[/abstract]\n" . $mail['body'];
 | 
						|
		$mail['title'] = '';
 | 
						|
 | 
						|
		$mail['author-link'] = $mail['owner-link'] = $mail['from-url'];
 | 
						|
		$mail['allow_cid'] = '<'.$mail['contact-id'].'>';
 | 
						|
		$mail['allow_gid'] = '';
 | 
						|
		$mail['deny_cid'] = '';
 | 
						|
		$mail['deny_gid'] = '';
 | 
						|
		$mail['private'] = true;
 | 
						|
		$mail['deleted'] = false;
 | 
						|
		$mail['edited'] = $mail['created'];
 | 
						|
		$mail['plink'] = $mail['uri'];
 | 
						|
		$mail['thr-parent'] = $reply['uri'];
 | 
						|
		$mail['gravity'] = ($mail['reply'] ? GRAVITY_COMMENT: GRAVITY_PARENT);
 | 
						|
 | 
						|
		$mail['event-type'] = '';
 | 
						|
		$mail['attach'] = '';
 | 
						|
 | 
						|
		$mail['parent'] = 0;
 | 
						|
 | 
						|
		return $mail;
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Creates an activity array for a given mail id
 | 
						|
	 *
 | 
						|
	 * @param integer $mail_id
 | 
						|
	 * @param boolean $object_mode Is the activity item is used inside another object?
 | 
						|
	 *
 | 
						|
	 * @return array of activity
 | 
						|
	 * @throws \Exception
 | 
						|
	 */
 | 
						|
	public static function createActivityFromMail($mail_id, $object_mode = false)
 | 
						|
	{
 | 
						|
		$mail = self::ItemArrayFromMail($mail_id);
 | 
						|
		$object = self::createNote($mail);
 | 
						|
 | 
						|
		if (!$object_mode) {
 | 
						|
			$data = ['@context' => ActivityPub::CONTEXT];
 | 
						|
		} else {
 | 
						|
			$data = [];
 | 
						|
		}
 | 
						|
 | 
						|
		$data['id'] = $mail['uri'] . '/Create';
 | 
						|
		$data['type'] = 'Create';
 | 
						|
		$data['actor'] = $mail['author-link'];
 | 
						|
		$data['published'] = DateTimeFormat::utc($mail['created'] . '+00:00', DateTimeFormat::ATOM);
 | 
						|
		$data['instrument'] = self::getService();
 | 
						|
		$data = array_merge($data, self::createPermissionBlockForItem($mail, true));
 | 
						|
 | 
						|
		if (empty($data['to']) && !empty($data['cc'])) {
 | 
						|
			$data['to'] = $data['cc'];
 | 
						|
		}
 | 
						|
 | 
						|
		if (empty($data['to']) && !empty($data['bcc'])) {
 | 
						|
			$data['to'] = $data['bcc'];
 | 
						|
		}
 | 
						|
 | 
						|
		unset($data['cc']);
 | 
						|
		unset($data['bcc']);
 | 
						|
 | 
						|
		$object['to'] = $data['to'];
 | 
						|
		$object['tag'] = [['type' => 'Mention', 'href' => $object['to'][0], 'name' => '']];
 | 
						|
 | 
						|
		unset($object['cc']);
 | 
						|
		unset($object['bcc']);
 | 
						|
 | 
						|
		$data['directMessage'] = true;
 | 
						|
 | 
						|
		$data['object'] = $object;
 | 
						|
 | 
						|
		$owner = User::getOwnerDataById($mail['uid']);
 | 
						|
 | 
						|
		if (!$object_mode && !empty($owner)) {
 | 
						|
			return LDSignature::sign($data, $owner);
 | 
						|
		} else {
 | 
						|
			return $data;
 | 
						|
		}
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Returns the activity type of a given item
 | 
						|
	 *
 | 
						|
	 * @param array $item
 | 
						|
	 *
 | 
						|
	 * @return string with activity type
 | 
						|
	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 | 
						|
	 * @throws \ImagickException
 | 
						|
	 */
 | 
						|
	private static function getTypeOfItem($item)
 | 
						|
	{
 | 
						|
		$reshared = false;
 | 
						|
 | 
						|
		// Only check for a reshare, if it is a real reshare and no quoted reshare
 | 
						|
		if (strpos($item['body'], "[share") === 0) {
 | 
						|
			$announce = self::getAnnounceArray($item);
 | 
						|
			$reshared = !empty($announce);
 | 
						|
		}
 | 
						|
 | 
						|
		if ($reshared) {
 | 
						|
			$type = 'Announce';
 | 
						|
		} elseif ($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) {
 | 
						|
			$type = 'TentativeAccept';
 | 
						|
		} elseif ($item['verb'] == Activity::FOLLOW) {
 | 
						|
			$type = 'Follow';
 | 
						|
		} elseif ($item['verb'] == Activity::TAG) {
 | 
						|
			$type = 'Add';
 | 
						|
		} else {
 | 
						|
			$type = '';
 | 
						|
		}
 | 
						|
 | 
						|
		return $type;
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Creates the activity or fetches it from the cache
 | 
						|
	 *
 | 
						|
	 * @param integer $item_id
 | 
						|
	 * @param boolean $force Force new cache entry
 | 
						|
	 *
 | 
						|
	 * @return array with the activity
 | 
						|
	 * @throws \Exception
 | 
						|
	 */
 | 
						|
	public static function createCachedActivityFromItem($item_id, $force = false)
 | 
						|
	{
 | 
						|
		$cachekey = 'APDelivery:createActivity:' . $item_id;
 | 
						|
 | 
						|
		if (!$force) {
 | 
						|
			$data = DI::cache()->get($cachekey);
 | 
						|
			if (!is_null($data)) {
 | 
						|
				return $data;
 | 
						|
			}
 | 
						|
		}
 | 
						|
 | 
						|
		$data = self::createActivityFromItem($item_id);
 | 
						|
 | 
						|
		DI::cache()->set($cachekey, $data, Duration::QUARTER_HOUR);
 | 
						|
		return $data;
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Creates an activity array for a given item id
 | 
						|
	 *
 | 
						|
	 * @param integer $item_id
 | 
						|
	 * @param boolean $object_mode Is the activity item is used inside another object?
 | 
						|
	 *
 | 
						|
	 * @return array of activity
 | 
						|
	 * @throws \Exception
 | 
						|
	 */
 | 
						|
	public static function createActivityFromItem($item_id, $object_mode = false)
 | 
						|
	{
 | 
						|
		$item = Item::selectFirst([], ['id' => $item_id, 'parent-network' => Protocol::NATIVE_SUPPORT]);
 | 
						|
 | 
						|
		if (!DBA::isResult($item)) {
 | 
						|
			return false;
 | 
						|
		}
 | 
						|
 | 
						|
		if ($item['wall'] && ($item['uri'] == $item['parent-uri'])) {
 | 
						|
			$owner = User::getOwnerDataById($item['uid']);
 | 
						|
			if (($owner['account-type'] == User::ACCOUNT_TYPE_COMMUNITY) && ($item['author-link'] != $owner['url'])) {
 | 
						|
				$type = 'Announce';
 | 
						|
 | 
						|
				// Disguise forum posts as reshares. Will later be converted to a real announce
 | 
						|
				$item['body'] = BBCode::getShareOpeningTag($item['author-name'], $item['author-link'], $item['author-avatar'],
 | 
						|
					$item['plink'], $item['created'], $item['guid']) . $item['body'] . '[/share]';
 | 
						|
			}
 | 
						|
		}
 | 
						|
 | 
						|
		if (empty($type)) {
 | 
						|
			$condition = ['item-uri' => $item['uri'], 'protocol' => Conversation::PARCEL_ACTIVITYPUB];
 | 
						|
			$conversation = DBA::selectFirst('conversation', ['source'], $condition);
 | 
						|
			if (DBA::isResult($conversation)) {
 | 
						|
				$data = json_decode($conversation['source'], true);
 | 
						|
				if (!empty($data['type'])) {
 | 
						|
					if (in_array($data['type'], ['Create', 'Update'])) {
 | 
						|
						if ($object_mode) {
 | 
						|
							unset($data['@context']);
 | 
						|
							unset($data['signature']);
 | 
						|
						}
 | 
						|
						return $data;
 | 
						|
					} elseif (in_array('as:' . $data['type'], Receiver::CONTENT_TYPES)) {
 | 
						|
						if (!empty($data['@context'])) {
 | 
						|
							$context = $data['@context'];
 | 
						|
							unset($data['@context']);
 | 
						|
						}
 | 
						|
						unset($data['actor']);
 | 
						|
						$object = $data;
 | 
						|
					}
 | 
						|
				}
 | 
						|
			}
 | 
						|
 | 
						|
			$type = self::getTypeOfItem($item);
 | 
						|
		}
 | 
						|
 | 
						|
		if (!$object_mode) {
 | 
						|
			$data = ['@context' => $context ?? ActivityPub::CONTEXT];
 | 
						|
 | 
						|
			if ($item['deleted'] && ($item['gravity'] == GRAVITY_ACTIVITY)) {
 | 
						|
				$type = 'Undo';
 | 
						|
			} elseif ($item['deleted']) {
 | 
						|
				$type = 'Delete';
 | 
						|
			}
 | 
						|
		} else {
 | 
						|
			$data = [];
 | 
						|
		}
 | 
						|
 | 
						|
		$data['id'] = $item['uri'] . '/' . $type;
 | 
						|
		$data['type'] = $type;
 | 
						|
 | 
						|
		if (Item::isForumPost($item) && ($type != 'Announce')) {
 | 
						|
			$data['actor'] = $item['author-link'];
 | 
						|
		} else {
 | 
						|
			$data['actor'] = $item['owner-link'];
 | 
						|
		}
 | 
						|
 | 
						|
		$data['published'] = DateTimeFormat::utc($item['created'] . '+00:00', DateTimeFormat::ATOM);
 | 
						|
 | 
						|
		$data['instrument'] = self::getService();
 | 
						|
 | 
						|
		$data = array_merge($data, self::createPermissionBlockForItem($item, false));
 | 
						|
 | 
						|
		if (in_array($data['type'], ['Create', 'Update', 'Delete'])) {
 | 
						|
			$data['object'] = $object ?? self::createNote($item);
 | 
						|
		} elseif ($data['type'] == 'Add') {
 | 
						|
			$data = self::createAddTag($item, $data);
 | 
						|
		} elseif ($data['type'] == 'Announce') {
 | 
						|
			$data = self::createAnnounce($item, $data);
 | 
						|
		} elseif ($data['type'] == 'Follow') {
 | 
						|
			$data['object'] = $item['parent-uri'];
 | 
						|
		} elseif ($data['type'] == 'Undo') {
 | 
						|
			$data['object'] = self::createActivityFromItem($item_id, true);
 | 
						|
		} else {
 | 
						|
			$data['diaspora:guid'] = $item['guid'];
 | 
						|
			if (!empty($item['signed_text'])) {
 | 
						|
				$data['diaspora:like'] = $item['signed_text'];
 | 
						|
			}
 | 
						|
			$data['object'] = $item['thr-parent'];
 | 
						|
		}
 | 
						|
 | 
						|
		if (!empty($item['contact-uid'])) {
 | 
						|
			$uid = $item['contact-uid'];
 | 
						|
		} else {
 | 
						|
			$uid = $item['uid'];
 | 
						|
		}
 | 
						|
 | 
						|
		$owner = User::getOwnerDataById($uid);
 | 
						|
 | 
						|
		if (!$object_mode && !empty($owner)) {
 | 
						|
			return LDSignature::sign($data, $owner);
 | 
						|
		} else {
 | 
						|
			return $data;
 | 
						|
		}
 | 
						|
 | 
						|
		/// @todo Create "conversation" entry
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Creates a location entry for a given item array
 | 
						|
	 *
 | 
						|
	 * @param array $item
 | 
						|
	 *
 | 
						|
	 * @return array with location array
 | 
						|
	 */
 | 
						|
	private static function createLocation($item)
 | 
						|
	{
 | 
						|
		$location = ['type' => 'Place'];
 | 
						|
 | 
						|
		if (!empty($item['location'])) {
 | 
						|
			$location['name'] = $item['location'];
 | 
						|
		}
 | 
						|
 | 
						|
		$coord = [];
 | 
						|
 | 
						|
		if (empty($item['coord'])) {
 | 
						|
			$coord = Map::getCoordinates($item['location']);
 | 
						|
		} else {
 | 
						|
			$coords = explode(' ', $item['coord']);
 | 
						|
			if (count($coords) == 2) {
 | 
						|
				$coord = ['lat' => $coords[0], 'lon' => $coords[1]];
 | 
						|
			}
 | 
						|
		}
 | 
						|
 | 
						|
		if (!empty($coord['lat']) && !empty($coord['lon'])) {
 | 
						|
			$location['latitude'] = $coord['lat'];
 | 
						|
			$location['longitude'] = $coord['lon'];
 | 
						|
		}
 | 
						|
 | 
						|
		return $location;
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Returns a tag array for a given item array
 | 
						|
	 *
 | 
						|
	 * @param array $item
 | 
						|
	 *
 | 
						|
	 * @return array of tags
 | 
						|
	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 | 
						|
	 */
 | 
						|
	private static function createTagList($item)
 | 
						|
	{
 | 
						|
		$tags = [];
 | 
						|
 | 
						|
		$terms = Tag::getByURIId($item['uri-id'], [Tag::HASHTAG, Tag::MENTION, Tag::IMPLICIT_MENTION, Tag::EXCLUSIVE_MENTION]);
 | 
						|
		foreach ($terms as $term) {
 | 
						|
			if ($term['type'] == Tag::HASHTAG) {
 | 
						|
				$url = DI::baseUrl() . '/search?tag=' . urlencode($term['name']);
 | 
						|
				$tags[] = ['type' => 'Hashtag', 'href' => $url, 'name' => '#' . $term['name']];
 | 
						|
			} else {
 | 
						|
				$contact = Contact::getDetailsByURL($term['url']);
 | 
						|
				if (!empty($contact['addr'])) {
 | 
						|
					$mention = '@' . $contact['addr'];
 | 
						|
				} else {
 | 
						|
					$mention = '@' . $term['url'];
 | 
						|
				}
 | 
						|
 | 
						|
				$tags[] = ['type' => 'Mention', 'href' => $term['url'], 'name' => $mention];
 | 
						|
			}
 | 
						|
		}
 | 
						|
 | 
						|
		$announce = self::getAnnounceArray($item);
 | 
						|
		// Mention the original author upon commented reshares
 | 
						|
		if (!empty($announce['comment'])) {
 | 
						|
			$tags[] = ['type' => 'Mention', 'href' => $announce['actor']['url'], 'name' => '@' . $announce['actor']['addr']];
 | 
						|
		}
 | 
						|
 | 
						|
		return $tags;
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Adds attachment data to the JSON document
 | 
						|
	 *
 | 
						|
	 * @param array  $item Data of the item that is to be posted
 | 
						|
	 * @param string $type Object type
 | 
						|
	 *
 | 
						|
	 * @return array with attachment data
 | 
						|
	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 | 
						|
	 */
 | 
						|
	private static function createAttachmentList($item, $type)
 | 
						|
	{
 | 
						|
		$attachments = [];
 | 
						|
 | 
						|
		// Currently deactivated, since it creates side effects on Mastodon and Pleroma.
 | 
						|
		// It will be reactivated, once this cleared.
 | 
						|
		/*
 | 
						|
		$attach_data = BBCode::getAttachmentData($item['body']);
 | 
						|
		if (!empty($attach_data['url'])) {
 | 
						|
			$attachment = ['type' => 'Page',
 | 
						|
				'mediaType' => 'text/html',
 | 
						|
				'url' => $attach_data['url']];
 | 
						|
 | 
						|
			if (!empty($attach_data['title'])) {
 | 
						|
				$attachment['name'] = $attach_data['title'];
 | 
						|
			}
 | 
						|
 | 
						|
			if (!empty($attach_data['description'])) {
 | 
						|
				$attachment['summary'] = $attach_data['description'];
 | 
						|
			}
 | 
						|
 | 
						|
			if (!empty($attach_data['image'])) {
 | 
						|
				$imgdata = Images::getInfoFromURLCached($attach_data['image']);
 | 
						|
				if ($imgdata) {
 | 
						|
					$attachment['icon'] = ['type' => 'Image',
 | 
						|
						'mediaType' => $imgdata['mime'],
 | 
						|
						'width' => $imgdata[0],
 | 
						|
						'height' => $imgdata[1],
 | 
						|
						'url' => $attach_data['image']];
 | 
						|
				}
 | 
						|
			}
 | 
						|
 | 
						|
			$attachments[] = $attachment;
 | 
						|
		}
 | 
						|
		*/
 | 
						|
		$arr = explode('[/attach],', $item['attach']);
 | 
						|
		if (count($arr)) {
 | 
						|
			foreach ($arr as $r) {
 | 
						|
				$matches = false;
 | 
						|
				$cnt = preg_match('|\[attach\]href=\"(.*?)\" length=\"(.*?)\" type=\"(.*?)\" title=\"(.*?)\"|', $r, $matches);
 | 
						|
				if ($cnt) {
 | 
						|
					$attributes = ['type' => 'Document',
 | 
						|
							'mediaType' => $matches[3],
 | 
						|
							'url' => $matches[1],
 | 
						|
							'name' => null];
 | 
						|
 | 
						|
					if (trim($matches[4]) != '') {
 | 
						|
						$attributes['name'] = trim($matches[4]);
 | 
						|
					}
 | 
						|
 | 
						|
					$attachments[] = $attributes;
 | 
						|
				}
 | 
						|
			}
 | 
						|
		}
 | 
						|
 | 
						|
		if ($type != 'Note') {
 | 
						|
			return $attachments;
 | 
						|
		}
 | 
						|
 | 
						|
		// Simplify image codes
 | 
						|
		$body = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '[img]$3[/img]', $item['body']);
 | 
						|
 | 
						|
		// Grab all pictures without alternative descriptions and create attachments out of them
 | 
						|
		if (preg_match_all("/\[img\]([^\[\]]*)\[\/img\]/Usi", $body, $pictures)) {
 | 
						|
			foreach ($pictures[1] as $picture) {
 | 
						|
				$imgdata = Images::getInfoFromURLCached($picture);
 | 
						|
				if ($imgdata) {
 | 
						|
					$attachments[] = ['type' => 'Document',
 | 
						|
						'mediaType' => $imgdata['mime'],
 | 
						|
						'url' => $picture,
 | 
						|
						'name' => null];
 | 
						|
				}
 | 
						|
			}
 | 
						|
		}
 | 
						|
 | 
						|
		// Grab all pictures with alternative description and create attachments out of them
 | 
						|
		if (preg_match_all("/\[img=([^\[\]]*)\]([^\[\]]*)\[\/img\]/Usi", $body, $pictures, PREG_SET_ORDER)) {
 | 
						|
			foreach ($pictures as $picture) {
 | 
						|
				$imgdata = Images::getInfoFromURLCached($picture[1]);
 | 
						|
				if ($imgdata) {
 | 
						|
					$attachments[] = ['type' => 'Document',
 | 
						|
						'mediaType' => $imgdata['mime'],
 | 
						|
						'url' => $picture[1],
 | 
						|
						'name' => $picture[2]];
 | 
						|
				}
 | 
						|
			}
 | 
						|
		}
 | 
						|
 | 
						|
		return $attachments;
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Callback function to replace a Friendica style mention in a mention that is used on AP
 | 
						|
	 *
 | 
						|
	 * @param array $match Matching values for the callback
 | 
						|
	 * @return string Replaced mention
 | 
						|
	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 | 
						|
	 */
 | 
						|
	private static function mentionCallback($match)
 | 
						|
	{
 | 
						|
		if (empty($match[1])) {
 | 
						|
			return '';
 | 
						|
		}
 | 
						|
 | 
						|
		$data = Contact::getDetailsByURL($match[1]);
 | 
						|
		if (empty($data['nick'])) {
 | 
						|
			return $match[0];
 | 
						|
		}
 | 
						|
 | 
						|
		return '@[url=' . $data['url'] . ']' . $data['nick'] . '[/url]';
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Remove image elements since they are added as attachment
 | 
						|
	 *
 | 
						|
	 * @param string $body
 | 
						|
	 *
 | 
						|
	 * @return string with removed images
 | 
						|
	 */
 | 
						|
	private static function removePictures($body)
 | 
						|
	{
 | 
						|
		// Simplify image codes
 | 
						|
		$body = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '[img]$3[/img]', $body);
 | 
						|
		$body = preg_replace("/\[img\=(.*?)\](.*?)\[\/img\]/ism", '[img]$1[/img]', $body);
 | 
						|
 | 
						|
		// Now remove local links
 | 
						|
		$body = preg_replace_callback(
 | 
						|
			'/\[url=([^\[\]]*)\]\[img\](.*)\[\/img\]\[\/url\]/Usi',
 | 
						|
			function ($match) {
 | 
						|
				// We remove the link when it is a link to a local photo page
 | 
						|
				if (Photo::isLocalPage($match[1])) {
 | 
						|
					return '';
 | 
						|
				}
 | 
						|
				// otherwise we just return the link
 | 
						|
				return '[url]' . $match[1] . '[/url]';
 | 
						|
			},
 | 
						|
			$body
 | 
						|
		);
 | 
						|
 | 
						|
		// Remove all pictures
 | 
						|
		$body = preg_replace("/\[img\]([^\[\]]*)\[\/img\]/Usi", '', $body);
 | 
						|
 | 
						|
		return $body;
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Fetches the "context" value for a givem item array from the "conversation" table
 | 
						|
	 *
 | 
						|
	 * @param array $item
 | 
						|
	 *
 | 
						|
	 * @return string with context url
 | 
						|
	 * @throws \Exception
 | 
						|
	 */
 | 
						|
	private static function fetchContextURLForItem($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 = $item['parent-uri'] . '#context';
 | 
						|
		}
 | 
						|
		return $context_uri;
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Returns if the post contains sensitive content ("nsfw")
 | 
						|
	 *
 | 
						|
	 * @param integer $uri_id
 | 
						|
	 *
 | 
						|
	 * @return boolean
 | 
						|
	 * @throws \Exception
 | 
						|
	 */
 | 
						|
	private static function isSensitive($uri_id)
 | 
						|
	{
 | 
						|
		return DBA::exists('tag-view', ['uri-id' => $uri_id, 'name' => 'nsfw']);
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Creates event data
 | 
						|
	 *
 | 
						|
	 * @param array $item
 | 
						|
	 *
 | 
						|
	 * @return array with the event data
 | 
						|
	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 | 
						|
	 */
 | 
						|
	public static function createEvent($item)
 | 
						|
	{
 | 
						|
		$event = [];
 | 
						|
		$event['name'] = $item['event-summary'];
 | 
						|
		$event['content'] = BBCode::convert($item['event-desc'], false, BBCode::ACTIVITYPUB);
 | 
						|
		$event['startTime'] = DateTimeFormat::utc($item['event-start'] . '+00:00', DateTimeFormat::ATOM);
 | 
						|
 | 
						|
		if (!$item['event-nofinish']) {
 | 
						|
			$event['endTime'] = DateTimeFormat::utc($item['event-finish'] . '+00:00', DateTimeFormat::ATOM);
 | 
						|
		}
 | 
						|
 | 
						|
		if (!empty($item['event-location'])) {
 | 
						|
			$item['location'] = $item['event-location'];
 | 
						|
			$event['location'] = self::createLocation($item);
 | 
						|
		}
 | 
						|
 | 
						|
		return $event;
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Creates a note/article object array
 | 
						|
	 *
 | 
						|
	 * @param array $item
 | 
						|
	 *
 | 
						|
	 * @return array with the object data
 | 
						|
	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 | 
						|
	 * @throws \ImagickException
 | 
						|
	 */
 | 
						|
	public static function createNote($item)
 | 
						|
	{
 | 
						|
		if (empty($item)) {
 | 
						|
			return [];
 | 
						|
		}
 | 
						|
 | 
						|
		if ($item['event-type'] == 'event') {
 | 
						|
			$type = 'Event';
 | 
						|
		} elseif (!empty($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;
 | 
						|
		}
 | 
						|
 | 
						|
		$data['summary'] = BBCode::toPlaintext(BBCode::getAbstract($item['body'], Protocol::ACTIVITYPUB));
 | 
						|
 | 
						|
		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'];
 | 
						|
		$data['sensitive'] = self::isSensitive($item['uri-id']);
 | 
						|
		$data['context'] = self::fetchContextURLForItem($item);
 | 
						|
 | 
						|
		if (!empty($item['title'])) {
 | 
						|
			$data['name'] = BBCode::toPlaintext($item['title'], false);
 | 
						|
		}
 | 
						|
 | 
						|
		$permission_block = self::createPermissionBlockForItem($item, false);
 | 
						|
 | 
						|
		$body = $item['body'];
 | 
						|
 | 
						|
		if (empty($item['uid']) || !Feature::isEnabled($item['uid'], 'explicit_mentions')) {
 | 
						|
			$body = self::prependMentions($body, $item['uri-id']);
 | 
						|
		}
 | 
						|
 | 
						|
		if ($type == 'Note') {
 | 
						|
			$body = self::removePictures($body);
 | 
						|
		} elseif (($type == 'Article') && empty($data['summary'])) {
 | 
						|
			$data['summary'] = BBCode::toPlaintext(Plaintext::shorten(self::removePictures($body), 1000));
 | 
						|
		}
 | 
						|
 | 
						|
		if ($type == 'Event') {
 | 
						|
			$data = array_merge($data, self::createEvent($item));
 | 
						|
		} else {
 | 
						|
			$regexp = "/[@!]\[url\=([^\[\]]*)\].*?\[\/url\]/ism";
 | 
						|
			$body = preg_replace_callback($regexp, ['self', 'mentionCallback'], $body);
 | 
						|
 | 
						|
			$data['content'] = BBCode::convert($body, false, BBCode::ACTIVITYPUB);
 | 
						|
		}
 | 
						|
 | 
						|
		// The regular "content" field does contain a minimized HTML. This is done since systems like
 | 
						|
		// Mastodon has got problems with - for example - embedded pictures.
 | 
						|
		// The contentMap does contain the unmodified HTML.
 | 
						|
		$language = self::getLanguage($item);
 | 
						|
		if (!empty($language)) {
 | 
						|
			$regexp = "/[@!]\[url\=([^\[\]]*)\].*?\[\/url\]/ism";
 | 
						|
			$richbody = preg_replace_callback($regexp, ['self', 'mentionCallback'], $item['body']);
 | 
						|
			$richbody = BBCode::removeAttachment($richbody);
 | 
						|
 | 
						|
			$data['contentMap'][$language] = BBCode::convert($richbody, false);
 | 
						|
		}
 | 
						|
 | 
						|
		$data['source'] = ['content' => $item['body'], 'mediaType' => "text/bbcode"];
 | 
						|
 | 
						|
		if (!empty($item['signed_text']) && ($item['uri'] != $item['thr-parent'])) {
 | 
						|
			$data['diaspora:comment'] = $item['signed_text'];
 | 
						|
		}
 | 
						|
 | 
						|
		$data['attachment'] = self::createAttachmentList($item, $type);
 | 
						|
		$data['tag'] = self::createTagList($item);
 | 
						|
 | 
						|
		if (empty($data['location']) && (!empty($item['coord']) || !empty($item['location']))) {
 | 
						|
			$data['location'] = self::createLocation($item);
 | 
						|
		}
 | 
						|
 | 
						|
		if (!empty($item['app'])) {
 | 
						|
			$data['generator'] = ['type' => 'Application', 'name' => $item['app']];
 | 
						|
		}
 | 
						|
 | 
						|
		$data = array_merge($data, $permission_block);
 | 
						|
 | 
						|
		return $data;
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Fetches the language from the post, the user or the system.
 | 
						|
	 *
 | 
						|
	 * @param array $item
 | 
						|
	 *
 | 
						|
	 * @return string language string
 | 
						|
	 */
 | 
						|
	private static function getLanguage(array $item)
 | 
						|
	{
 | 
						|
		// Try to fetch the language from the post itself
 | 
						|
		if (!empty($item['language'])) {
 | 
						|
			$languages = array_keys(json_decode($item['language'], true));
 | 
						|
			if (!empty($languages[0])) {
 | 
						|
				return $languages[0];
 | 
						|
			}
 | 
						|
		}
 | 
						|
 | 
						|
		// Otherwise use the user's language
 | 
						|
		if (!empty($item['uid'])) {
 | 
						|
			$user = DBA::selectFirst('user', ['language'], ['uid' => $item['uid']]);
 | 
						|
			if (!empty($user['language'])) {
 | 
						|
				return $user['language'];
 | 
						|
			}
 | 
						|
		}
 | 
						|
 | 
						|
		// And finally just use the system language
 | 
						|
		return DI::config()->get('system', 'language');
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Creates an an "add tag" entry
 | 
						|
	 *
 | 
						|
	 * @param array $item
 | 
						|
	 * @param array $data activity data
 | 
						|
	 *
 | 
						|
	 * @return array with activity data for adding tags
 | 
						|
	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 | 
						|
	 * @throws \ImagickException
 | 
						|
	 */
 | 
						|
	private static function createAddTag($item, $data)
 | 
						|
	{
 | 
						|
		$object = XML::parseString($item['object']);
 | 
						|
		$target = XML::parseString($item["target"]);
 | 
						|
 | 
						|
		$data['diaspora:guid'] = $item['guid'];
 | 
						|
		$data['actor'] = $item['author-link'];
 | 
						|
		$data['target'] = (string)$target->id;
 | 
						|
		$data['summary'] = BBCode::toPlaintext($item['body']);
 | 
						|
		$data['object'] = ['id' => (string)$object->id, 'type' => 'tag', 'name' => (string)$object->title, 'content' => (string)$object->content];
 | 
						|
 | 
						|
		return $data;
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Creates an announce object entry
 | 
						|
	 *
 | 
						|
	 * @param array $item
 | 
						|
	 * @param array $data activity data
 | 
						|
	 *
 | 
						|
	 * @return array with activity data
 | 
						|
	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 | 
						|
	 * @throws \ImagickException
 | 
						|
	 */
 | 
						|
	private static function createAnnounce($item, $data)
 | 
						|
	{
 | 
						|
		$orig_body = $item['body'];
 | 
						|
		$announce = self::getAnnounceArray($item);
 | 
						|
		if (empty($announce)) {
 | 
						|
			$data['type'] = 'Create';
 | 
						|
			$data['object'] = self::createNote($item);
 | 
						|
			return $data;
 | 
						|
		}
 | 
						|
 | 
						|
		if (empty($announce['comment'])) {
 | 
						|
			// Pure announce, without a quote
 | 
						|
			$data['type'] = 'Announce';
 | 
						|
			$data['object'] = $announce['object']['uri'];
 | 
						|
			return $data;
 | 
						|
		}
 | 
						|
 | 
						|
		// Quote
 | 
						|
		$data['type'] = 'Create';
 | 
						|
		$item['body'] = $announce['comment'] . "\n" . $announce['object']['plink'];
 | 
						|
		$data['object'] = self::createNote($item);
 | 
						|
 | 
						|
		/// @todo Finally descide how to implement this in AP. This is a possible way:
 | 
						|
		$data['object']['attachment'][] = self::createNote($announce['object']);
 | 
						|
 | 
						|
		$data['object']['source']['content'] = $orig_body;
 | 
						|
		return $data;
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Return announce related data if the item is an annunce
 | 
						|
	 *
 | 
						|
	 * @param array $item
 | 
						|
	 *
 | 
						|
	 * @return array
 | 
						|
	 */
 | 
						|
	public static function getAnnounceArray($item)
 | 
						|
	{
 | 
						|
		$reshared = Item::getShareArray($item);
 | 
						|
		if (empty($reshared['guid'])) {
 | 
						|
			return [];
 | 
						|
		}
 | 
						|
 | 
						|
		$reshared_item = Item::selectFirst([], ['guid' => $reshared['guid']]);
 | 
						|
		if (!DBA::isResult($reshared_item)) {
 | 
						|
			return [];
 | 
						|
		}
 | 
						|
 | 
						|
		if (!in_array($reshared_item['network'], [Protocol::ACTIVITYPUB, Protocol::DFRN])) {
 | 
						|
			return [];
 | 
						|
		}
 | 
						|
 | 
						|
		$profile = APContact::getByURL($reshared_item['author-link'], false);
 | 
						|
		if (empty($profile)) {
 | 
						|
			return [];
 | 
						|
		}
 | 
						|
 | 
						|
		return ['object' => $reshared_item, 'actor' => $profile, 'comment' => $reshared['comment']];
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Checks if the provided item array is an announce
 | 
						|
	 *
 | 
						|
	 * @param array $item
 | 
						|
	 *
 | 
						|
	 * @return boolean
 | 
						|
	 */
 | 
						|
	public static function isAnnounce($item)
 | 
						|
	{
 | 
						|
		$announce = self::getAnnounceArray($item);
 | 
						|
		if (empty($announce)) {
 | 
						|
			return false;
 | 
						|
		}
 | 
						|
 | 
						|
		return empty($announce['comment']);
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Creates an activity id for a given contact id
 | 
						|
	 *
 | 
						|
	 * @param integer $cid Contact ID of target
 | 
						|
	 *
 | 
						|
	 * @return bool|string activity id
 | 
						|
	 */
 | 
						|
	public static function activityIDFromContact($cid)
 | 
						|
	{
 | 
						|
		$contact = DBA::selectFirst('contact', ['uid', 'id', 'created'], ['id' => $cid]);
 | 
						|
		if (!DBA::isResult($contact)) {
 | 
						|
			return false;
 | 
						|
		}
 | 
						|
 | 
						|
		$hash = hash('ripemd128', $contact['uid'].'-'.$contact['id'].'-'.$contact['created']);
 | 
						|
		$uuid = substr($hash, 0, 8). '-' . substr($hash, 8, 4) . '-' . substr($hash, 12, 4) . '-' . substr($hash, 16, 4) . '-' . substr($hash, 20, 12);
 | 
						|
		return DI::baseUrl() . '/activity/' . $uuid;
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Transmits a contact suggestion to a given inbox
 | 
						|
	 *
 | 
						|
	 * @param integer $uid           User ID
 | 
						|
	 * @param string  $inbox         Target inbox
 | 
						|
	 * @param integer $suggestion_id Suggestion ID
 | 
						|
	 *
 | 
						|
	 * @return boolean was the transmission successful?
 | 
						|
	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 | 
						|
	 */
 | 
						|
	public static function sendContactSuggestion($uid, $inbox, $suggestion_id)
 | 
						|
	{
 | 
						|
		$owner = User::getOwnerDataById($uid);
 | 
						|
 | 
						|
		$suggestion = DI::fsuggest()->getById($suggestion_id);
 | 
						|
 | 
						|
		$data = ['@context' => ActivityPub::CONTEXT,
 | 
						|
			'id' => DI::baseUrl() . '/activity/' . System::createGUID(),
 | 
						|
			'type' => 'Announce',
 | 
						|
			'actor' => $owner['url'],
 | 
						|
			'object' => $suggestion->url,
 | 
						|
			'content' => $suggestion->note,
 | 
						|
			'instrument' => self::getService(),
 | 
						|
			'to' => [ActivityPub::PUBLIC_COLLECTION],
 | 
						|
			'cc' => []];
 | 
						|
 | 
						|
		$signed = LDSignature::sign($data, $owner);
 | 
						|
 | 
						|
		Logger::log('Deliver profile deletion for user ' . $uid . ' to ' . $inbox . ' via ActivityPub', Logger::DEBUG);
 | 
						|
		return HTTPSignature::transmit($signed, $inbox, $uid);
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Transmits a profile relocation to a given inbox
 | 
						|
	 *
 | 
						|
	 * @param integer $uid   User ID
 | 
						|
	 * @param string  $inbox Target inbox
 | 
						|
	 *
 | 
						|
	 * @return boolean was the transmission successful?
 | 
						|
	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 | 
						|
	 */
 | 
						|
	public static function sendProfileRelocation($uid, $inbox)
 | 
						|
	{
 | 
						|
		$owner = User::getOwnerDataById($uid);
 | 
						|
 | 
						|
		$data = ['@context' => ActivityPub::CONTEXT,
 | 
						|
			'id' => DI::baseUrl() . '/activity/' . System::createGUID(),
 | 
						|
			'type' => 'dfrn:relocate',
 | 
						|
			'actor' => $owner['url'],
 | 
						|
			'object' => $owner['url'],
 | 
						|
			'published' => DateTimeFormat::utcNow(DateTimeFormat::ATOM),
 | 
						|
			'instrument' => self::getService(),
 | 
						|
			'to' => [ActivityPub::PUBLIC_COLLECTION],
 | 
						|
			'cc' => []];
 | 
						|
 | 
						|
		$signed = LDSignature::sign($data, $owner);
 | 
						|
 | 
						|
		Logger::log('Deliver profile relocation for user ' . $uid . ' to ' . $inbox . ' via ActivityPub', Logger::DEBUG);
 | 
						|
		return HTTPSignature::transmit($signed, $inbox, $uid);
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Transmits a profile deletion to a given inbox
 | 
						|
	 *
 | 
						|
	 * @param integer $uid   User ID
 | 
						|
	 * @param string  $inbox Target inbox
 | 
						|
	 *
 | 
						|
	 * @return boolean was the transmission successful?
 | 
						|
	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 | 
						|
	 */
 | 
						|
	public static function sendProfileDeletion($uid, $inbox)
 | 
						|
	{
 | 
						|
		$owner = User::getOwnerDataById($uid);
 | 
						|
 | 
						|
		if (empty($owner)) {
 | 
						|
			Logger::error('No owner data found, the deletion message cannot be processed.', ['user' => $uid]);
 | 
						|
			return false;
 | 
						|
		}
 | 
						|
 | 
						|
		if (empty($owner['uprvkey'])) {
 | 
						|
			Logger::error('No private key for owner found, the deletion message cannot be processed.', ['user' => $uid]);
 | 
						|
			return false;
 | 
						|
		}
 | 
						|
 | 
						|
		$data = ['@context' => ActivityPub::CONTEXT,
 | 
						|
			'id' => DI::baseUrl() . '/activity/' . System::createGUID(),
 | 
						|
			'type' => 'Delete',
 | 
						|
			'actor' => $owner['url'],
 | 
						|
			'object' => $owner['url'],
 | 
						|
			'published' => DateTimeFormat::utcNow(DateTimeFormat::ATOM),
 | 
						|
			'instrument' => self::getService(),
 | 
						|
			'to' => [ActivityPub::PUBLIC_COLLECTION],
 | 
						|
			'cc' => []];
 | 
						|
 | 
						|
		$signed = LDSignature::sign($data, $owner);
 | 
						|
 | 
						|
		Logger::log('Deliver profile deletion for user ' . $uid . ' to ' . $inbox . ' via ActivityPub', Logger::DEBUG);
 | 
						|
		return HTTPSignature::transmit($signed, $inbox, $uid);
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Transmits a profile change to a given inbox
 | 
						|
	 *
 | 
						|
	 * @param integer $uid   User ID
 | 
						|
	 * @param string  $inbox Target inbox
 | 
						|
	 *
 | 
						|
	 * @return boolean was the transmission successful?
 | 
						|
	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 | 
						|
	 * @throws \ImagickException
 | 
						|
	 */
 | 
						|
	public static function sendProfileUpdate($uid, $inbox)
 | 
						|
	{
 | 
						|
		$owner = User::getOwnerDataById($uid);
 | 
						|
		$profile = APContact::getByURL($owner['url']);
 | 
						|
 | 
						|
		$data = ['@context' => ActivityPub::CONTEXT,
 | 
						|
			'id' => DI::baseUrl() . '/activity/' . System::createGUID(),
 | 
						|
			'type' => 'Update',
 | 
						|
			'actor' => $owner['url'],
 | 
						|
			'object' => self::getProfile($uid),
 | 
						|
			'published' => DateTimeFormat::utcNow(DateTimeFormat::ATOM),
 | 
						|
			'instrument' => self::getService(),
 | 
						|
			'to' => [$profile['followers']],
 | 
						|
			'cc' => []];
 | 
						|
 | 
						|
		$signed = LDSignature::sign($data, $owner);
 | 
						|
 | 
						|
		Logger::log('Deliver profile update for user ' . $uid . ' to ' . $inbox . ' via ActivityPub', Logger::DEBUG);
 | 
						|
		return HTTPSignature::transmit($signed, $inbox, $uid);
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Transmits a given activity to a target
 | 
						|
	 *
 | 
						|
	 * @param string  $activity Type name
 | 
						|
	 * @param string  $target   Target profile
 | 
						|
	 * @param integer $uid      User ID
 | 
						|
	 * @return bool
 | 
						|
	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 | 
						|
	 * @throws \ImagickException
 | 
						|
	 * @throws \Exception
 | 
						|
	 */
 | 
						|
	public static function sendActivity($activity, $target, $uid, $id = '')
 | 
						|
	{
 | 
						|
		$profile = APContact::getByURL($target);
 | 
						|
		if (empty($profile['inbox'])) {
 | 
						|
			Logger::warning('No inbox found for target', ['target' => $target, 'profile' => $profile]);
 | 
						|
			return;
 | 
						|
		}
 | 
						|
 | 
						|
		$owner = User::getOwnerDataById($uid);
 | 
						|
 | 
						|
		if (empty($id)) {
 | 
						|
			$id = DI::baseUrl() . '/activity/' . System::createGUID();
 | 
						|
		}
 | 
						|
 | 
						|
		$data = ['@context' => ActivityPub::CONTEXT,
 | 
						|
			'id' => $id,
 | 
						|
			'type' => $activity,
 | 
						|
			'actor' => $owner['url'],
 | 
						|
			'object' => $profile['url'],
 | 
						|
			'instrument' => self::getService(),
 | 
						|
			'to' => [$profile['url']]];
 | 
						|
 | 
						|
		Logger::log('Sending activity ' . $activity . ' to ' . $target . ' for user ' . $uid, Logger::DEBUG);
 | 
						|
 | 
						|
		$signed = LDSignature::sign($data, $owner);
 | 
						|
		return HTTPSignature::transmit($signed, $profile['inbox'], $uid);
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Transmits a "follow object" activity to a target
 | 
						|
	 * This is a preparation for sending automated "follow" requests when receiving "Announce" messages
 | 
						|
	 *
 | 
						|
	 * @param string  $object Object URL
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						|
	 * @param string  $target Target profile
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						|
	 * @param integer $uid    User ID
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						|
	 * @return bool
 | 
						|
	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 | 
						|
	 * @throws \ImagickException
 | 
						|
	 * @throws \Exception
 | 
						|
	 */
 | 
						|
	public static function sendFollowObject($object, $target, $uid = 0)
 | 
						|
	{
 | 
						|
		$profile = APContact::getByURL($target);
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						|
		if (empty($profile['inbox'])) {
 | 
						|
			Logger::warning('No inbox found for target', ['target' => $target, 'profile' => $profile]);
 | 
						|
			return;
 | 
						|
		}
 | 
						|
 | 
						|
		if (empty($uid)) {
 | 
						|
			// Fetch the list of administrators
 | 
						|
			$admin_mail = explode(',', str_replace(' ', '', DI::config()->get('config', 'admin_email')));
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						|
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						|
			// We need to use some user as a sender. It doesn't care who it will send. We will use an administrator account.
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						|
			$condition = ['verified' => true, 'blocked' => false, 'account_removed' => false, 'account_expired' => false, 'email' => $admin_mail];
 | 
						|
			$first_user = DBA::selectFirst('user', ['uid'], $condition);
 | 
						|
			$uid = $first_user['uid'];
 | 
						|
		}
 | 
						|
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						|
		$condition = ['verb' => Activity::FOLLOW, 'uid' => 0, 'parent-uri' => $object,
 | 
						|
			'author-id' => Contact::getPublicIdByUserId($uid)];
 | 
						|
		if (Item::exists($condition)) {
 | 
						|
			Logger::log('Follow for ' . $object . ' for user ' . $uid . ' does already exist.', Logger::DEBUG);
 | 
						|
			return false;
 | 
						|
		}
 | 
						|
 | 
						|
		$owner = User::getOwnerDataById($uid);
 | 
						|
 | 
						|
		$data = ['@context' => ActivityPub::CONTEXT,
 | 
						|
			'id' => DI::baseUrl() . '/activity/' . System::createGUID(),
 | 
						|
			'type' => 'Follow',
 | 
						|
			'actor' => $owner['url'],
 | 
						|
			'object' => $object,
 | 
						|
			'instrument' => self::getService(),
 | 
						|
			'to' => [$profile['url']]];
 | 
						|
 | 
						|
		Logger::log('Sending follow ' . $object . ' to ' . $target . ' for user ' . $uid, Logger::DEBUG);
 | 
						|
 | 
						|
		$signed = LDSignature::sign($data, $owner);
 | 
						|
		return HTTPSignature::transmit($signed, $profile['inbox'], $uid);
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Transmit a message that the contact request had been accepted
 | 
						|
	 *
 | 
						|
	 * @param string  $target Target profile
 | 
						|
	 * @param         $id
 | 
						|
	 * @param integer $uid    User ID
 | 
						|
	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 | 
						|
	 * @throws \ImagickException
 | 
						|
	 */
 | 
						|
	public static function sendContactAccept($target, $id, $uid)
 | 
						|
	{
 | 
						|
		$profile = APContact::getByURL($target);
 | 
						|
		if (empty($profile['inbox'])) {
 | 
						|
			Logger::warning('No inbox found for target', ['target' => $target, 'profile' => $profile]);
 | 
						|
			return;
 | 
						|
		}
 | 
						|
 | 
						|
		$owner = User::getOwnerDataById($uid);
 | 
						|
		$data = ['@context' => ActivityPub::CONTEXT,
 | 
						|
			'id' => DI::baseUrl() . '/activity/' . System::createGUID(),
 | 
						|
			'type' => 'Accept',
 | 
						|
			'actor' => $owner['url'],
 | 
						|
			'object' => [
 | 
						|
				'id' => (string)$id,
 | 
						|
				'type' => 'Follow',
 | 
						|
				'actor' => $profile['url'],
 | 
						|
				'object' => $owner['url']
 | 
						|
			],
 | 
						|
			'instrument' => self::getService(),
 | 
						|
			'to' => [$profile['url']]];
 | 
						|
 | 
						|
		Logger::debug('Sending accept to ' . $target . ' for user ' . $uid . ' with id ' . $id);
 | 
						|
 | 
						|
		$signed = LDSignature::sign($data, $owner);
 | 
						|
		HTTPSignature::transmit($signed, $profile['inbox'], $uid);
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Reject a contact request or terminates the contact relation
 | 
						|
	 *
 | 
						|
	 * @param string  $target Target profile
 | 
						|
	 * @param         $id
 | 
						|
	 * @param integer $uid    User ID
 | 
						|
	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 | 
						|
	 * @throws \ImagickException
 | 
						|
	 */
 | 
						|
	public static function sendContactReject($target, $id, $uid)
 | 
						|
	{
 | 
						|
		$profile = APContact::getByURL($target);
 | 
						|
		if (empty($profile['inbox'])) {
 | 
						|
			Logger::warning('No inbox found for target', ['target' => $target, 'profile' => $profile]);
 | 
						|
			return;
 | 
						|
		}
 | 
						|
 | 
						|
		$owner = User::getOwnerDataById($uid);
 | 
						|
		$data = ['@context' => ActivityPub::CONTEXT,
 | 
						|
			'id' => DI::baseUrl() . '/activity/' . System::createGUID(),
 | 
						|
			'type' => 'Reject',
 | 
						|
			'actor' => $owner['url'],
 | 
						|
			'object' => [
 | 
						|
				'id' => (string)$id,
 | 
						|
				'type' => 'Follow',
 | 
						|
				'actor' => $profile['url'],
 | 
						|
				'object' => $owner['url']
 | 
						|
			],
 | 
						|
			'instrument' => self::getService(),
 | 
						|
			'to' => [$profile['url']]];
 | 
						|
 | 
						|
		Logger::debug('Sending reject to ' . $target . ' for user ' . $uid . ' with id ' . $id);
 | 
						|
 | 
						|
		$signed = LDSignature::sign($data, $owner);
 | 
						|
		HTTPSignature::transmit($signed, $profile['inbox'], $uid);
 | 
						|
	}
 | 
						|
 | 
						|
	/**
 | 
						|
	 * Transmits a message that we don't want to follow this contact anymore
 | 
						|
	 *
 | 
						|
	 * @param string  $target Target profile
 | 
						|
	 * @param integer $uid    User ID
 | 
						|
	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 | 
						|
	 * @throws \ImagickException
 | 
						|
	 * @throws \Exception
 | 
						|
	 */
 | 
						|
	public static function sendContactUndo($target, $cid, $uid)
 | 
						|
	{
 | 
						|
		$profile = APContact::getByURL($target);
 | 
						|
		if (empty($profile['inbox'])) {
 | 
						|
			Logger::warning('No inbox found for target', ['target' => $target, 'profile' => $profile]);
 | 
						|
			return;
 | 
						|
		}
 | 
						|
 | 
						|
		$object_id = self::activityIDFromContact($cid);
 | 
						|
		if (empty($object_id)) {
 | 
						|
			return;
 | 
						|
		}
 | 
						|
 | 
						|
		$id = DI::baseUrl() . '/activity/' . System::createGUID();
 | 
						|
 | 
						|
		$owner = User::getOwnerDataById($uid);
 | 
						|
		$data = ['@context' => ActivityPub::CONTEXT,
 | 
						|
			'id' => $id,
 | 
						|
			'type' => 'Undo',
 | 
						|
			'actor' => $owner['url'],
 | 
						|
			'object' => ['id' => $object_id, 'type' => 'Follow',
 | 
						|
				'actor' => $owner['url'],
 | 
						|
				'object' => $profile['url']],
 | 
						|
			'instrument' => self::getService(),
 | 
						|
			'to' => [$profile['url']]];
 | 
						|
 | 
						|
		Logger::log('Sending undo to ' . $target . ' for user ' . $uid . ' with id ' . $id, Logger::DEBUG);
 | 
						|
 | 
						|
		$signed = LDSignature::sign($data, $owner);
 | 
						|
		HTTPSignature::transmit($signed, $profile['inbox'], $uid);
 | 
						|
	}
 | 
						|
 | 
						|
	private static function prependMentions($body, int $uriid)
 | 
						|
	{
 | 
						|
		$mentions = [];
 | 
						|
 | 
						|
		foreach (Tag::getByURIId($uriid, [Tag::IMPLICIT_MENTION]) as $tag) {
 | 
						|
			$profile = Contact::getDetailsByURL($tag['url']);
 | 
						|
			if (!empty($profile['addr'])
 | 
						|
				&& $profile['contact-type'] != Contact::TYPE_COMMUNITY
 | 
						|
				&& !strstr($body, $profile['addr'])
 | 
						|
				&& !strstr($body, $tag['url'])
 | 
						|
			) {
 | 
						|
				$mentions[] = '@[url=' . $tag['url'] . ']' . $profile['nick'] . '[/url]';
 | 
						|
			}
 | 
						|
		}
 | 
						|
 | 
						|
		$mentions[] = $body;
 | 
						|
 | 
						|
		return implode(' ', $mentions);
 | 
						|
	}
 | 
						|
}
 |