1066 lines
31 KiB
PHP
1066 lines
31 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\PageInfo;
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use Friendica\Content\Text\BBCode;
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use Friendica\Content\Text\HTML;
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use Friendica\Core\Logger;
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use Friendica\Core\Protocol;
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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\Event;
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use Friendica\Model\Item;
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use Friendica\Model\ItemURI;
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use Friendica\Model\Mail;
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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\JsonLD;
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use Friendica\Util\Strings;
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/**
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* ActivityPub Processor Protocol class
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*/
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class Processor
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{
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/**
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* Converts mentions from Pleroma into the Friendica format
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*
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* @param string $body
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*
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* @return string converted body
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*/
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private static function convertMentions($body)
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{
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$URLSearchString = "^\[\]";
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$body = preg_replace("/\[url\=([$URLSearchString]*)\]([#@!])(.*?)\[\/url\]/ism", '$2[url=$1]$3[/url]', $body);
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return $body;
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}
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/**
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* Replaces emojis in the body
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*
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* @param array $emojis
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* @param string $body
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*
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* @return string with replaced emojis
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*/
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private static function replaceEmojis($body, array $emojis)
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{
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foreach ($emojis as $emoji) {
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$replace = '[class=emoji mastodon][img=' . $emoji['href'] . ']' . $emoji['name'] . '[/img][/class]';
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$body = str_replace($emoji['name'], $replace, $body);
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}
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return $body;
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}
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/**
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* Add attachment data to the item array
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*
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* @param array $activity
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* @param array $item
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*
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* @return array array
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*/
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private static function constructAttachList($activity, $item)
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{
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if (empty($activity['attachments'])) {
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return $item;
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}
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foreach ($activity['attachments'] as $attach) {
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switch ($attach['type']) {
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case 'link':
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$data = [
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'url' => $attach['url'],
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'type' => $attach['type'],
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'title' => $attach['title'] ?? '',
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'text' => $attach['desc'] ?? '',
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'image' => $attach['image'] ?? '',
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'images' => [],
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'keywords' => [],
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];
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$item['body'] = PageInfo::appendDataToBody($item['body'], $data);
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break;
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default:
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$filetype = strtolower(substr($attach['mediaType'], 0, strpos($attach['mediaType'], '/')));
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if ($filetype == 'image') {
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if (!empty($activity['source']) && strpos($activity['source'], $attach['url'])) {
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continue 2;
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}
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$item['body'] .= "\n";
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// image is the preview/thumbnail URL
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if (!empty($attach['image'])) {
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$item['body'] .= '[url=' . $attach['url'] . ']';
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$attach['url'] = $attach['image'];
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}
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if (empty($attach['name'])) {
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$item['body'] .= '[img]' . $attach['url'] . '[/img]';
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} else {
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$item['body'] .= '[img=' . $attach['url'] . ']' . $attach['name'] . '[/img]';
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}
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if (!empty($attach['image'])) {
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$item['body'] .= '[/url]';
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}
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} elseif ($filetype == 'audio') {
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if (!empty($activity['source']) && strpos($activity['source'], $attach['url'])) {
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continue 2;
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}
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$item['body'] .= "\n[audio]" . $attach['url'] . '[/audio]';
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} elseif ($filetype == 'video') {
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if (!empty($activity['source']) && strpos($activity['source'], $attach['url'])) {
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continue 2;
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}
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$item['body'] .= "\n[video]" . $attach['url'] . '[/video]';
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} else {
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if (!empty($item["attach"])) {
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$item["attach"] .= ',';
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} else {
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$item["attach"] = '';
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}
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$item["attach"] .= '[attach]href="' . $attach['url'] . '" length="' . ($attach['length'] ?? '0') . '" type="' . $attach['mediaType'] . '" title="' . ($attach['name'] ?? '') . '"[/attach]';
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}
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}
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}
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return $item;
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}
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/**
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* Updates a message
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*
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* @param array $activity Activity array
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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*/
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public static function updateItem($activity)
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{
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$item = Item::selectFirst(['uri', 'uri-id', 'thr-parent', 'gravity'], ['uri' => $activity['id']]);
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if (!DBA::isResult($item)) {
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Logger::warning('No existing item, item will be created', ['uri' => $activity['id']]);
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$item = self::createItem($activity);
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self::postItem($activity, $item);
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return;
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}
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$item['changed'] = DateTimeFormat::utcNow();
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$item['edited'] = DateTimeFormat::utc($activity['updated']);
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$item = self::processContent($activity, $item);
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if (empty($item)) {
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return;
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}
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Item::update($item, ['uri' => $activity['id']]);
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}
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/**
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* Prepares data for a message
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*
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* @param array $activity Activity array
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* @return array Internal item
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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* @throws \ImagickException
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*/
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public static function createItem($activity)
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{
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$item = [];
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$item['verb'] = Activity::POST;
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$item['thr-parent'] = $activity['reply-to-id'];
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if ($activity['reply-to-id'] == $activity['id']) {
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$item['gravity'] = GRAVITY_PARENT;
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$item['object-type'] = Activity\ObjectType::NOTE;
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} else {
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$item['gravity'] = GRAVITY_COMMENT;
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$item['object-type'] = Activity\ObjectType::COMMENT;
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// Ensure that the comment reaches all receivers of the referring post
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$activity['receiver'] = self::addReceivers($activity);
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}
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if (empty($activity['directmessage']) && ($activity['id'] != $activity['reply-to-id']) && !Item::exists(['uri' => $activity['reply-to-id']])) {
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Logger::notice('Parent not found. Try to refetch it.', ['parent' => $activity['reply-to-id']]);
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self::fetchMissingActivity($activity['reply-to-id'], $activity);
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}
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$item['diaspora_signed_text'] = $activity['diaspora:comment'] ?? '';
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/// @todo What to do with $activity['context']?
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if (empty($activity['directmessage']) && ($item['gravity'] != GRAVITY_PARENT) && !Item::exists(['uri' => $item['thr-parent']])) {
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Logger::info('Parent not found, message will be discarded.', ['thr-parent' => $item['thr-parent']]);
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return [];
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}
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$item['network'] = Protocol::ACTIVITYPUB;
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$item['author-link'] = $activity['author'];
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$item['author-id'] = Contact::getIdForURL($activity['author']);
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$item['owner-link'] = $activity['actor'];
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$item['owner-id'] = Contact::getIdForURL($activity['actor']);
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if (in_array(0, $activity['receiver']) && !empty($activity['unlisted'])) {
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$item['private'] = Item::UNLISTED;
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} elseif (in_array(0, $activity['receiver'])) {
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$item['private'] = Item::PUBLIC;
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} else {
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$item['private'] = Item::PRIVATE;
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}
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if (!empty($activity['raw'])) {
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$item['source'] = $activity['raw'];
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$item['protocol'] = Conversation::PARCEL_ACTIVITYPUB;
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$item['conversation-href'] = $activity['context'] ?? '';
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$item['conversation-uri'] = $activity['conversation'] ?? '';
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if (isset($activity['push'])) {
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$item['direction'] = $activity['push'] ? Conversation::PUSH : Conversation::PULL;
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}
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}
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$item['isForum'] = false;
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if (!empty($activity['thread-completion'])) {
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// Store the original actor in the "causer" fields to enable the check for ignored or blocked contacts
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$item['causer-link'] = $item['owner-link'];
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$item['causer-id'] = $item['owner-id'];
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Logger::info('Ignoring actor because of thread completion.', ['actor' => $item['owner-link']]);
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$item['owner-link'] = $item['author-link'];
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$item['owner-id'] = $item['author-id'];
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} else {
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$actor = APContact::getByURL($item['owner-link'], false);
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$item['isForum'] = ($actor['type'] == 'Group');
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}
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$item['uri'] = $activity['id'];
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$item['created'] = DateTimeFormat::utc($activity['published']);
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$item['edited'] = DateTimeFormat::utc($activity['updated']);
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$guid = $activity['sc:identifier'] ?: self::getGUIDByURL($item['uri']);
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$item['guid'] = $activity['diaspora:guid'] ?: $guid;
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$item['uri-id'] = ItemURI::insert(['uri' => $item['uri'], 'guid' => $item['guid']]);
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$item = self::processContent($activity, $item);
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if (empty($item)) {
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return [];
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}
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$item['plink'] = $activity['alternate-url'] ?? $item['uri'];
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$item = self::constructAttachList($activity, $item);
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return $item;
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}
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/**
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* Delete items
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*
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* @param array $activity
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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* @throws \ImagickException
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*/
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public static function deleteItem($activity)
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{
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$owner = Contact::getIdForURL($activity['actor']);
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Logger::info('Deleting item', ['object' => $activity['object_id'], 'owner' => $owner]);
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Item::markForDeletion(['uri' => $activity['object_id'], 'owner-id' => $owner]);
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}
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/**
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* Prepare the item array for an activity
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*
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* @param array $activity Activity array
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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* @throws \ImagickException
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*/
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public static function addTag($activity)
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{
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if (empty($activity['object_content']) || empty($activity['object_id'])) {
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return;
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}
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foreach ($activity['receiver'] as $receiver) {
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$item = Item::selectFirst(['id', 'uri-id', 'tag', 'origin', 'author-link'], ['uri' => $activity['target_id'], 'uid' => $receiver]);
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if (!DBA::isResult($item)) {
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// We don't fetch missing content for this purpose
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continue;
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}
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if (($item['author-link'] != $activity['actor']) && !$item['origin']) {
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Logger::info('Not origin, not from the author, skipping update', ['id' => $item['id'], 'author' => $item['author-link'], 'actor' => $activity['actor']]);
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continue;
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}
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Tag::store($item['uri-id'], Tag::HASHTAG, $activity['object_content'], $activity['object_id']);
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Logger::info('Tagged item', ['id' => $item['id'], 'tag' => $activity['object_content'], 'uri' => $activity['target_id'], 'actor' => $activity['actor']]);
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}
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}
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/**
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* Add users to the receiver list of the given public activity.
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* This is used to ensure that the activity will be stored in every thread.
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*
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* @param array $activity Activity array
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* @return array Modified receiver list
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*/
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private static function addReceivers(array $activity)
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{
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if (!in_array(0, $activity['receiver'])) {
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// Private activities will not be modified
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return $activity['receiver'];
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}
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// Add all owners of the referring item to the receivers
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$original = $receivers = $activity['receiver'];
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$items = Item::select(['uid'], ['uri' => $activity['object_id']]);
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while ($item = DBA::fetch($items)) {
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$receivers['uid:' . $item['uid']] = $item['uid'];
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}
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DBA::close($items);
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if (count($original) != count($receivers)) {
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Logger::info('Improved data', ['id' => $activity['id'], 'object' => $activity['object_id'], 'original' => $original, 'improved' => $receivers]);
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}
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return $receivers;
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}
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/**
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* Prepare the item array for an activity
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*
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* @param array $activity Activity array
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* @param string $verb Activity verb
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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* @throws \ImagickException
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*/
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public static function createActivity($activity, $verb)
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{
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$item = self::createItem($activity);
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$item['verb'] = $verb;
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$item['thr-parent'] = $activity['object_id'];
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$item['gravity'] = GRAVITY_ACTIVITY;
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$item['object-type'] = Activity\ObjectType::NOTE;
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$item['diaspora_signed_text'] = $activity['diaspora:like'] ?? '';
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$activity['receiver'] = self::addReceivers($activity);
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self::postItem($activity, $item);
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}
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/**
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* Create an event
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*
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* @param array $activity Activity array
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* @param array $item
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* @throws \Exception
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*/
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public static function createEvent($activity, $item)
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{
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$event['summary'] = HTML::toBBCode($activity['name']);
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$event['desc'] = HTML::toBBCode($activity['content']);
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$event['start'] = $activity['start-time'];
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$event['finish'] = $activity['end-time'];
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$event['nofinish'] = empty($event['finish']);
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$event['location'] = $activity['location'];
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$event['adjust'] = true;
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$event['cid'] = $item['contact-id'];
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$event['uid'] = $item['uid'];
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$event['uri'] = $item['uri'];
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$event['edited'] = $item['edited'];
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$event['private'] = $item['private'];
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$event['guid'] = $item['guid'];
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$event['plink'] = $item['plink'];
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$condition = ['uri' => $item['uri'], 'uid' => $item['uid']];
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$ev = DBA::selectFirst('event', ['id'], $condition);
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if (DBA::isResult($ev)) {
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$event['id'] = $ev['id'];
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}
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$event_id = Event::store($event);
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Logger::info('Event was stored', ['id' => $event_id]);
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}
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/**
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* Process the content
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*
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* @param array $activity Activity array
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* @param array $item
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* @return array|bool Returns the item array or false if there was an unexpected occurrence
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* @throws \Exception
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*/
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private static function processContent($activity, $item)
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{
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$item['title'] = HTML::toBBCode($activity['name']);
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if (!empty($activity['source'])) {
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$item['body'] = $activity['source'];
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} else {
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$content = HTML::toBBCode($activity['content']);
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if (!empty($activity['emojis'])) {
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$content = self::replaceEmojis($content, $activity['emojis']);
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}
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$content = self::convertMentions($content);
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if (empty($activity['directmessage']) && ($item['thr-parent'] != $item['uri']) && ($item['gravity'] == GRAVITY_COMMENT)) {
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$item_private = !in_array(0, $activity['item_receiver']);
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$parent = Item::selectFirst(['id', 'uri-id', 'private', 'author-link', 'alias'], ['uri' => $item['thr-parent']]);
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if (!DBA::isResult($parent)) {
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Logger::warning('Unknown parent item.', ['uri' => $item['thr-parent']]);
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return false;
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}
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if ($item_private && ($parent['private'] != Item::PRIVATE)) {
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Logger::warning('Item is private but the parent is not. Dropping.', ['item-uri' => $item['uri'], 'thr-parent' => $item['thr-parent']]);
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return false;
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}
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$content = self::removeImplicitMentionsFromBody($content, $parent);
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}
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$item['content-warning'] = HTML::toBBCode($activity['summary']);
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$item['body'] = $content;
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}
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self::storeFromBody($item);
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self::storeTags($item['uri-id'], $activity['tags']);
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$item['location'] = $activity['location'];
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if (!empty($activity['latitude']) && !empty($activity['longitude'])) {
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$item['coord'] = $activity['latitude'] . ' ' . $activity['longitude'];
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}
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$item['app'] = $activity['generator'];
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return $item;
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}
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/**
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* Store hashtags and mentions
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*
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* @param array $item
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*/
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private static function storeFromBody(array $item)
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{
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// Make sure to delete all existing tags (can happen when called via the update functionality)
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DBA::delete('post-tag', ['uri-id' => $item['uri-id']]);
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Tag::storeFromBody($item['uri-id'], $item['body'], '@!');
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}
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/**
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* Generate a GUID out of an URL
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*
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* @param string $url message URL
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* @return string with GUID
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*/
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private static function getGUIDByURL(string $url)
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{
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$parsed = parse_url($url);
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$host_hash = hash('crc32', $parsed['host']);
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unset($parsed["scheme"]);
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unset($parsed["host"]);
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$path = implode("/", $parsed);
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return $host_hash . '-'. hash('fnv164', $path) . '-'. hash('joaat', $path);
|
|
}
|
|
|
|
/**
|
|
* Creates an item post
|
|
*
|
|
* @param array $activity Activity data
|
|
* @param array $item item array
|
|
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
|
|
* @throws \ImagickException
|
|
*/
|
|
public static function postItem(array $activity, array $item)
|
|
{
|
|
if (empty($item)) {
|
|
return;
|
|
}
|
|
|
|
$stored = false;
|
|
|
|
foreach ($activity['receiver'] as $receiver) {
|
|
if ($receiver == -1) {
|
|
continue;
|
|
}
|
|
|
|
$item['uid'] = $receiver;
|
|
|
|
if ($item['isForum'] ?? false) {
|
|
$item['contact-id'] = Contact::getIdForURL($activity['actor'], $receiver);
|
|
} else {
|
|
$item['contact-id'] = Contact::getIdForURL($activity['author'], $receiver);
|
|
}
|
|
|
|
if (($receiver != 0) && empty($item['contact-id'])) {
|
|
$item['contact-id'] = Contact::getIdForURL($activity['author']);
|
|
}
|
|
|
|
if (!empty($activity['directmessage'])) {
|
|
self::postMail($activity, $item);
|
|
continue;
|
|
}
|
|
|
|
if (DI::pConfig()->get($receiver, 'system', 'accept_only_sharer', false) && ($receiver != 0) && ($item['gravity'] == GRAVITY_PARENT)) {
|
|
$skip = !Contact::isSharingByURL($activity['author'], $receiver);
|
|
|
|
if ($skip && (($activity['type'] == 'as:Announce') || ($item['isForum'] ?? false))) {
|
|
$skip = !Contact::isSharingByURL($activity['actor'], $receiver);
|
|
}
|
|
|
|
if ($skip) {
|
|
Logger::info('Skipping post', ['uid' => $receiver, 'url' => $item['uri']]);
|
|
continue;
|
|
}
|
|
|
|
Logger::info('Accepting post', ['uid' => $receiver, 'url' => $item['uri']]);
|
|
}
|
|
|
|
if (($item['gravity'] != GRAVITY_ACTIVITY) && ($activity['object_type'] == 'as:Event')) {
|
|
self::createEvent($activity, $item);
|
|
}
|
|
|
|
$item_id = Item::insert($item);
|
|
if ($item_id) {
|
|
Logger::info('Item insertion successful', ['user' => $item['uid'], 'item_id' => $item_id]);
|
|
} else {
|
|
Logger::notice('Item insertion aborted', ['user' => $item['uid']]);
|
|
}
|
|
|
|
if ($item['uid'] == 0) {
|
|
$stored = $item_id;
|
|
}
|
|
}
|
|
|
|
// Store send a follow request for every reshare - but only when the item had been stored
|
|
if ($stored && ($item['private'] != Item::PRIVATE) && ($item['gravity'] == GRAVITY_PARENT) && ($item['author-link'] != $item['owner-link'])) {
|
|
$author = APContact::getByURL($item['owner-link'], false);
|
|
// We send automatic follow requests for reshared messages. (We don't need though for forum posts)
|
|
if ($author['type'] != 'Group') {
|
|
Logger::info('Send follow request', ['uri' => $item['uri'], 'stored' => $stored, 'to' => $item['author-link']]);
|
|
ActivityPub\Transmitter::sendFollowObject($item['uri'], $item['author-link']);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Store tags and mentions into the tag table
|
|
*
|
|
* @param integer $uriid
|
|
* @param array $tags
|
|
*/
|
|
private static function storeTags(int $uriid, array $tags = null)
|
|
{
|
|
foreach ($tags as $tag) {
|
|
if (empty($tag['name']) || empty($tag['type']) || !in_array($tag['type'], ['Mention', 'Hashtag'])) {
|
|
continue;
|
|
}
|
|
|
|
$hash = substr($tag['name'], 0, 1);
|
|
|
|
if ($tag['type'] == 'Mention') {
|
|
if (in_array($hash, [Tag::TAG_CHARACTER[Tag::MENTION],
|
|
Tag::TAG_CHARACTER[Tag::EXCLUSIVE_MENTION],
|
|
Tag::TAG_CHARACTER[Tag::IMPLICIT_MENTION]])) {
|
|
$tag['name'] = substr($tag['name'], 1);
|
|
}
|
|
$type = Tag::IMPLICIT_MENTION;
|
|
|
|
if (!empty($tag['href'])) {
|
|
$apcontact = APContact::getByURL($tag['href']);
|
|
if (!empty($apcontact['name']) || !empty($apcontact['nick'])) {
|
|
$tag['name'] = $apcontact['name'] ?: $apcontact['nick'];
|
|
}
|
|
}
|
|
} elseif ($tag['type'] == 'Hashtag') {
|
|
if ($hash == Tag::TAG_CHARACTER[Tag::HASHTAG]) {
|
|
$tag['name'] = substr($tag['name'], 1);
|
|
}
|
|
$type = Tag::HASHTAG;
|
|
}
|
|
|
|
if (empty($tag['name'])) {
|
|
continue;
|
|
}
|
|
|
|
Tag::store($uriid, $type, $tag['name'], $tag['href']);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Creates an mail post
|
|
*
|
|
* @param array $activity Activity data
|
|
* @param array $item item array
|
|
* @return int|bool New mail table row id or false on error
|
|
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
|
|
*/
|
|
private static function postMail($activity, $item)
|
|
{
|
|
if (($item['gravity'] != GRAVITY_PARENT) && !DBA::exists('mail', ['uri' => $item['thr-parent'], 'uid' => $item['uid']])) {
|
|
Logger::info('Parent not found, mail will be discarded.', ['uid' => $item['uid'], 'uri' => $item['thr-parent']]);
|
|
return false;
|
|
}
|
|
|
|
Logger::info('Direct Message', $item);
|
|
|
|
$msg = [];
|
|
$msg['uid'] = $item['uid'];
|
|
|
|
$msg['contact-id'] = $item['contact-id'];
|
|
|
|
$contact = Contact::getById($item['contact-id'], ['name', 'url', 'photo']);
|
|
$msg['from-name'] = $contact['name'];
|
|
$msg['from-url'] = $contact['url'];
|
|
$msg['from-photo'] = $contact['photo'];
|
|
|
|
$msg['uri'] = $item['uri'];
|
|
$msg['created'] = $item['created'];
|
|
|
|
$parent = DBA::selectFirst('mail', ['parent-uri', 'title'], ['uri' => $item['thr-parent']]);
|
|
if (DBA::isResult($parent)) {
|
|
$msg['parent-uri'] = $parent['parent-uri'];
|
|
$msg['title'] = $parent['title'];
|
|
} else {
|
|
$msg['parent-uri'] = $item['thr-parent'];
|
|
|
|
if (!empty($item['title'])) {
|
|
$msg['title'] = $item['title'];
|
|
} elseif (!empty($item['content-warning'])) {
|
|
$msg['title'] = $item['content-warning'];
|
|
} else {
|
|
// Trying to generate a title out of the body
|
|
$title = $item['body'];
|
|
|
|
while (preg_match('#^(@\[url=([^\]]+)].*?\[\/url]\s)(.*)#is', $title, $matches)) {
|
|
$title = $matches[3];
|
|
}
|
|
|
|
$title = trim(HTML::toPlaintext(BBCode::convert($title, false, BBCode::API, true), 0));
|
|
|
|
if (strlen($title) > 20) {
|
|
$title = substr($title, 0, 20) . '...';
|
|
}
|
|
|
|
$msg['title'] = $title;
|
|
}
|
|
}
|
|
$msg['body'] = $item['body'];
|
|
|
|
return Mail::insert($msg);
|
|
}
|
|
|
|
/**
|
|
* Fetches missing posts
|
|
*
|
|
* @param string $url message URL
|
|
* @param array $child activity array with the child of this message
|
|
* @return string fetched message URL
|
|
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
|
|
*/
|
|
public static function fetchMissingActivity(string $url, array $child = [])
|
|
{
|
|
if (!empty($child['receiver'])) {
|
|
$uid = ActivityPub\Receiver::getFirstUserFromReceivers($child['receiver']);
|
|
} else {
|
|
$uid = 0;
|
|
}
|
|
|
|
$object = ActivityPub::fetchContent($url, $uid);
|
|
if (empty($object)) {
|
|
Logger::log('Activity ' . $url . ' was not fetchable, aborting.');
|
|
return '';
|
|
}
|
|
|
|
if (empty($object['id'])) {
|
|
Logger::log('Activity ' . $url . ' has got not id, aborting. ' . json_encode($object));
|
|
return '';
|
|
}
|
|
|
|
if (!empty($child['author'])) {
|
|
$actor = $child['author'];
|
|
} elseif (!empty($object['actor'])) {
|
|
$actor = $object['actor'];
|
|
} elseif (!empty($object['attributedTo'])) {
|
|
$actor = $object['attributedTo'];
|
|
} else {
|
|
// Shouldn't happen
|
|
$actor = '';
|
|
}
|
|
|
|
if (!empty($object['published'])) {
|
|
$published = $object['published'];
|
|
} elseif (!empty($child['published'])) {
|
|
$published = $child['published'];
|
|
} else {
|
|
$published = DateTimeFormat::utcNow();
|
|
}
|
|
|
|
$activity = [];
|
|
$activity['@context'] = $object['@context'];
|
|
unset($object['@context']);
|
|
$activity['id'] = $object['id'];
|
|
$activity['to'] = $object['to'] ?? [];
|
|
$activity['cc'] = $object['cc'] ?? [];
|
|
$activity['actor'] = $actor;
|
|
$activity['object'] = $object;
|
|
$activity['published'] = $published;
|
|
$activity['type'] = 'Create';
|
|
|
|
$ldactivity = JsonLD::compact($activity);
|
|
|
|
$ldactivity['thread-completion'] = true;
|
|
|
|
ActivityPub\Receiver::processActivity($ldactivity, json_encode($activity));
|
|
|
|
Logger::notice('Activity had been fetched and processed.', ['url' => $url, 'object' => $activity['id']]);
|
|
|
|
return $activity['id'];
|
|
}
|
|
|
|
/**
|
|
* perform a "follow" request
|
|
*
|
|
* @param array $activity
|
|
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
|
|
* @throws \ImagickException
|
|
*/
|
|
public static function followUser($activity)
|
|
{
|
|
$uid = User::getIdForURL($activity['object_id']);
|
|
if (empty($uid)) {
|
|
return;
|
|
}
|
|
|
|
$owner = User::getOwnerDataById($uid);
|
|
|
|
$cid = Contact::getIdForURL($activity['actor'], $uid);
|
|
if (!empty($cid)) {
|
|
self::switchContact($cid);
|
|
DBA::update('contact', ['hub-verify' => $activity['id'], 'protocol' => Protocol::ACTIVITYPUB], ['id' => $cid]);
|
|
$contact = DBA::selectFirst('contact', [], ['id' => $cid, 'network' => Protocol::NATIVE_SUPPORT]);
|
|
} else {
|
|
$contact = [];
|
|
}
|
|
|
|
$item = ['author-id' => Contact::getIdForURL($activity['actor']),
|
|
'author-link' => $activity['actor']];
|
|
|
|
$note = Strings::escapeTags(trim($activity['content'] ?? ''));
|
|
|
|
// Ensure that the contact has got the right network type
|
|
self::switchContact($item['author-id']);
|
|
|
|
$result = Contact::addRelationship($owner, $contact, $item, false, $note);
|
|
if ($result === true) {
|
|
ActivityPub\Transmitter::sendContactAccept($item['author-link'], $activity['id'], $owner['uid']);
|
|
}
|
|
|
|
$cid = Contact::getIdForURL($activity['actor'], $uid);
|
|
if (empty($cid)) {
|
|
return;
|
|
}
|
|
|
|
if (empty($contact)) {
|
|
DBA::update('contact', ['hub-verify' => $activity['id'], 'protocol' => Protocol::ACTIVITYPUB], ['id' => $cid]);
|
|
}
|
|
|
|
Logger::log('Follow user ' . $uid . ' from contact ' . $cid . ' with id ' . $activity['id']);
|
|
}
|
|
|
|
/**
|
|
* Update the given profile
|
|
*
|
|
* @param array $activity
|
|
* @throws \Exception
|
|
*/
|
|
public static function updatePerson($activity)
|
|
{
|
|
if (empty($activity['object_id'])) {
|
|
return;
|
|
}
|
|
|
|
Logger::info('Updating profile', ['object' => $activity['object_id']]);
|
|
Contact::updateFromProbeByURL($activity['object_id']);
|
|
}
|
|
|
|
/**
|
|
* Delete the given profile
|
|
*
|
|
* @param array $activity
|
|
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
|
|
*/
|
|
public static function deletePerson($activity)
|
|
{
|
|
if (empty($activity['object_id']) || empty($activity['actor'])) {
|
|
Logger::info('Empty object id or actor.');
|
|
return;
|
|
}
|
|
|
|
if ($activity['object_id'] != $activity['actor']) {
|
|
Logger::info('Object id does not match actor.');
|
|
return;
|
|
}
|
|
|
|
$contacts = DBA::select('contact', ['id'], ['nurl' => Strings::normaliseLink($activity['object_id'])]);
|
|
while ($contact = DBA::fetch($contacts)) {
|
|
Contact::remove($contact['id']);
|
|
}
|
|
DBA::close($contacts);
|
|
|
|
Logger::info('Deleted contact', ['object' => $activity['object_id']]);
|
|
}
|
|
|
|
/**
|
|
* Accept a follow request
|
|
*
|
|
* @param array $activity
|
|
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
|
|
* @throws \ImagickException
|
|
*/
|
|
public static function acceptFollowUser($activity)
|
|
{
|
|
$uid = User::getIdForURL($activity['object_actor']);
|
|
if (empty($uid)) {
|
|
return;
|
|
}
|
|
|
|
$cid = Contact::getIdForURL($activity['actor'], $uid);
|
|
if (empty($cid)) {
|
|
Logger::info('No contact found', ['actor' => $activity['actor']]);
|
|
return;
|
|
}
|
|
|
|
self::switchContact($cid);
|
|
|
|
$fields = ['pending' => false];
|
|
|
|
$contact = DBA::selectFirst('contact', ['rel'], ['id' => $cid]);
|
|
if ($contact['rel'] == Contact::FOLLOWER) {
|
|
$fields['rel'] = Contact::FRIEND;
|
|
}
|
|
|
|
$condition = ['id' => $cid];
|
|
DBA::update('contact', $fields, $condition);
|
|
Logger::info('Accept contact request', ['contact' => $cid, 'user' => $uid]);
|
|
}
|
|
|
|
/**
|
|
* Reject a follow request
|
|
*
|
|
* @param array $activity
|
|
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
|
|
* @throws \ImagickException
|
|
*/
|
|
public static function rejectFollowUser($activity)
|
|
{
|
|
$uid = User::getIdForURL($activity['object_actor']);
|
|
if (empty($uid)) {
|
|
return;
|
|
}
|
|
|
|
$cid = Contact::getIdForURL($activity['actor'], $uid);
|
|
if (empty($cid)) {
|
|
Logger::info('No contact found', ['actor' => $activity['actor']]);
|
|
return;
|
|
}
|
|
|
|
self::switchContact($cid);
|
|
|
|
if (DBA::exists('contact', ['id' => $cid, 'rel' => Contact::SHARING])) {
|
|
Contact::remove($cid);
|
|
Logger::info('Rejected contact request - contact removed', ['contact' => $cid, 'user' => $uid]);
|
|
} else {
|
|
Logger::info('Rejected contact request', ['contact' => $cid, 'user' => $uid]);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Undo activity like "like" or "dislike"
|
|
*
|
|
* @param array $activity
|
|
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
|
|
* @throws \ImagickException
|
|
*/
|
|
public static function undoActivity($activity)
|
|
{
|
|
if (empty($activity['object_id'])) {
|
|
return;
|
|
}
|
|
|
|
if (empty($activity['object_actor'])) {
|
|
return;
|
|
}
|
|
|
|
$author_id = Contact::getIdForURL($activity['object_actor']);
|
|
if (empty($author_id)) {
|
|
return;
|
|
}
|
|
|
|
Item::markForDeletion(['uri' => $activity['object_id'], 'author-id' => $author_id, 'gravity' => GRAVITY_ACTIVITY]);
|
|
}
|
|
|
|
/**
|
|
* Activity to remove a follower
|
|
*
|
|
* @param array $activity
|
|
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
|
|
* @throws \ImagickException
|
|
*/
|
|
public static function undoFollowUser($activity)
|
|
{
|
|
$uid = User::getIdForURL($activity['object_object']);
|
|
if (empty($uid)) {
|
|
return;
|
|
}
|
|
|
|
$owner = User::getOwnerDataById($uid);
|
|
|
|
$cid = Contact::getIdForURL($activity['actor'], $uid);
|
|
if (empty($cid)) {
|
|
Logger::info('No contact found', ['actor' => $activity['actor']]);
|
|
return;
|
|
}
|
|
|
|
self::switchContact($cid);
|
|
|
|
$contact = DBA::selectFirst('contact', [], ['id' => $cid]);
|
|
if (!DBA::isResult($contact)) {
|
|
return;
|
|
}
|
|
|
|
Contact::removeFollower($owner, $contact);
|
|
Logger::info('Undo following request', ['contact' => $cid, 'user' => $uid]);
|
|
}
|
|
|
|
/**
|
|
* Switches a contact to AP if needed
|
|
*
|
|
* @param integer $cid Contact ID
|
|
* @throws \Exception
|
|
*/
|
|
private static function switchContact($cid)
|
|
{
|
|
$contact = DBA::selectFirst('contact', ['network', 'url'], ['id' => $cid]);
|
|
if (!DBA::isResult($contact) || in_array($contact['network'], [Protocol::ACTIVITYPUB, Protocol::DFRN]) || Contact::isLocal($contact['url'])) {
|
|
return;
|
|
}
|
|
|
|
Logger::info('Change existing contact', ['cid' => $cid, 'previous' => $contact['network']]);
|
|
Contact::updateFromProbe($cid);
|
|
}
|
|
|
|
/**
|
|
* Collects implicit mentions like:
|
|
* - the author of the parent item
|
|
* - all the mentioned conversants in the parent item
|
|
*
|
|
* @param array $parent Item array with at least ['id', 'author-link', 'alias']
|
|
* @return array
|
|
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
|
|
*/
|
|
private static function getImplicitMentionList(array $parent)
|
|
{
|
|
$parent_terms = Tag::getByURIId($parent['uri-id'], [Tag::MENTION, Tag::IMPLICIT_MENTION, Tag::EXCLUSIVE_MENTION]);
|
|
|
|
$parent_author = Contact::getByURL($parent['author-link'], false, ['url', 'nurl', 'alias']);
|
|
|
|
$implicit_mentions = [];
|
|
if (empty($parent_author['url'])) {
|
|
Logger::notice('Author public contact unknown.', ['author-link' => $parent['author-link'], 'item-id' => $parent['id']]);
|
|
} else {
|
|
$implicit_mentions[] = $parent_author['url'];
|
|
$implicit_mentions[] = $parent_author['nurl'];
|
|
$implicit_mentions[] = $parent_author['alias'];
|
|
}
|
|
|
|
if (!empty($parent['alias'])) {
|
|
$implicit_mentions[] = $parent['alias'];
|
|
}
|
|
|
|
foreach ($parent_terms as $term) {
|
|
$contact = Contact::getByURL($term['url'], false, ['url', 'nurl', 'alias']);
|
|
if (!empty($contact['url'])) {
|
|
$implicit_mentions[] = $contact['url'];
|
|
$implicit_mentions[] = $contact['nurl'];
|
|
$implicit_mentions[] = $contact['alias'];
|
|
}
|
|
}
|
|
|
|
return $implicit_mentions;
|
|
}
|
|
|
|
/**
|
|
* Strips from the body prepended implicit mentions
|
|
*
|
|
* @param string $body
|
|
* @param array $parent
|
|
* @return string
|
|
*/
|
|
private static function removeImplicitMentionsFromBody(string $body, array $parent)
|
|
{
|
|
if (DI::config()->get('system', 'disable_implicit_mentions')) {
|
|
return $body;
|
|
}
|
|
|
|
$potential_mentions = self::getImplicitMentionList($parent);
|
|
|
|
$kept_mentions = [];
|
|
|
|
// Extract one prepended mention at a time from the body
|
|
while(preg_match('#^(@\[url=([^\]]+)].*?\[\/url]\s)(.*)#is', $body, $matches)) {
|
|
if (!in_array($matches[2], $potential_mentions)) {
|
|
$kept_mentions[] = $matches[1];
|
|
}
|
|
|
|
$body = $matches[3];
|
|
}
|
|
|
|
// Re-appending the kept mentions to the body after extraction
|
|
$kept_mentions[] = $body;
|
|
|
|
return implode('', $kept_mentions);
|
|
}
|
|
}
|