586 lines
16 KiB
PHP
586 lines
16 KiB
PHP
<?php
|
|
/**
|
|
* @file src/Protocol/ActivityPub/Processor.php
|
|
*/
|
|
namespace Friendica\Protocol\ActivityPub;
|
|
|
|
use Friendica\Database\DBA;
|
|
use Friendica\Content\Text\HTML;
|
|
use Friendica\Core\Config;
|
|
use Friendica\Core\Logger;
|
|
use Friendica\Core\Protocol;
|
|
use Friendica\Model\Conversation;
|
|
use Friendica\Model\Contact;
|
|
use Friendica\Model\APContact;
|
|
use Friendica\Model\Item;
|
|
use Friendica\Model\Event;
|
|
use Friendica\Model\User;
|
|
use Friendica\Protocol\ActivityPub;
|
|
use Friendica\Util\DateTimeFormat;
|
|
use Friendica\Util\JsonLD;
|
|
use Friendica\Util\Strings;
|
|
|
|
/**
|
|
* ActivityPub Processor Protocol class
|
|
*/
|
|
class Processor
|
|
{
|
|
/**
|
|
* Converts mentions from Pleroma into the Friendica format
|
|
*
|
|
* @param string $body
|
|
*
|
|
* @return converted body
|
|
*/
|
|
private static function convertMentions($body)
|
|
{
|
|
$URLSearchString = "^\[\]";
|
|
$body = preg_replace("/\[url\=([$URLSearchString]*)\]([#@!])(.*?)\[\/url\]/ism", '$2[url=$1]$3[/url]', $body);
|
|
|
|
return $body;
|
|
}
|
|
|
|
/**
|
|
* Replaces emojis in the body
|
|
*
|
|
* @param array $emojis
|
|
* @param string $body
|
|
*
|
|
* @return string with replaced emojis
|
|
*/
|
|
public static function replaceEmojis($emojis, $body)
|
|
{
|
|
foreach ($emojis as $emoji) {
|
|
$replace = '[class=emoji mastodon][img=' . $emoji['href'] . ']' . $emoji['name'] . '[/img][/class]';
|
|
$body = str_replace($emoji['name'], $replace, $body);
|
|
}
|
|
return $body;
|
|
}
|
|
|
|
/**
|
|
* Constructs a string with tags for a given tag array
|
|
*
|
|
* @param array $tags
|
|
* @param boolean $sensitive
|
|
*
|
|
* @return string with tags
|
|
*/
|
|
private static function constructTagList($tags, $sensitive)
|
|
{
|
|
if (empty($tags)) {
|
|
return '';
|
|
}
|
|
|
|
$tag_text = '';
|
|
foreach ($tags as $tag) {
|
|
if (in_array(defaults($tag, 'type', ''), ['Mention', 'Hashtag'])) {
|
|
if (!empty($tag_text)) {
|
|
$tag_text .= ',';
|
|
}
|
|
|
|
$tag_text .= substr($tag['name'], 0, 1) . '[url=' . $tag['href'] . ']' . substr($tag['name'], 1) . '[/url]';
|
|
}
|
|
}
|
|
|
|
/// @todo add nsfw for $sensitive
|
|
|
|
return $tag_text;
|
|
}
|
|
|
|
/**
|
|
* Add attachment data to the item array
|
|
*
|
|
* @param array $attachments
|
|
* @param array $item
|
|
*
|
|
* @return item array
|
|
*/
|
|
private static function constructAttachList($attachments, $item)
|
|
{
|
|
if (empty($attachments)) {
|
|
return $item;
|
|
}
|
|
|
|
foreach ($attachments as $attach) {
|
|
$filetype = strtolower(substr($attach['mediaType'], 0, strpos($attach['mediaType'], '/')));
|
|
if ($filetype == 'image') {
|
|
$item['body'] .= "\n[img]" . $attach['url'] . '[/img]';
|
|
} else {
|
|
if (!empty($item["attach"])) {
|
|
$item["attach"] .= ',';
|
|
} else {
|
|
$item["attach"] = '';
|
|
}
|
|
if (!isset($attach['length'])) {
|
|
$attach['length'] = "0";
|
|
}
|
|
$item["attach"] .= '[attach]href="'.$attach['url'].'" length="'.$attach['length'].'" type="'.$attach['mediaType'].'" title="'.defaults($attach, 'name', '').'"[/attach]';
|
|
}
|
|
}
|
|
|
|
return $item;
|
|
}
|
|
|
|
/**
|
|
* Updates a message
|
|
*
|
|
* @param array $activity Activity array
|
|
*/
|
|
public static function updateItem($activity)
|
|
{
|
|
$item = [];
|
|
$item['changed'] = DateTimeFormat::utcNow();
|
|
$item['edited'] = $activity['updated'];
|
|
$item['title'] = HTML::toBBCode($activity['name']);
|
|
$item['content-warning'] = HTML::toBBCode($activity['summary']);
|
|
$content = self::replaceEmojis($activity['emojis'], HTML::toBBCode($activity['content']));
|
|
$item['body'] = self::convertMentions($content);
|
|
$item['tag'] = self::constructTagList($activity['tags'], $activity['sensitive']);
|
|
|
|
Item::update($item, ['uri' => $activity['id']]);
|
|
}
|
|
|
|
/**
|
|
* Prepares data for a message
|
|
*
|
|
* @param array $activity Activity array
|
|
*/
|
|
public static function createItem($activity)
|
|
{
|
|
$item = [];
|
|
$item['verb'] = ACTIVITY_POST;
|
|
$item['parent-uri'] = $activity['reply-to-id'];
|
|
|
|
if ($activity['reply-to-id'] == $activity['id']) {
|
|
$item['gravity'] = GRAVITY_PARENT;
|
|
$item['object-type'] = ACTIVITY_OBJ_NOTE;
|
|
} else {
|
|
$item['gravity'] = GRAVITY_COMMENT;
|
|
$item['object-type'] = ACTIVITY_OBJ_COMMENT;
|
|
}
|
|
|
|
if (($activity['id'] != $activity['reply-to-id']) && !Item::exists(['uri' => $activity['reply-to-id']])) {
|
|
Logger::log('Parent ' . $activity['reply-to-id'] . ' not found. Try to refetch it.');
|
|
self::fetchMissingActivity($activity['reply-to-id'], $activity);
|
|
}
|
|
|
|
$item['diaspora_signed_text'] = defaults($activity, 'diaspora:comment', '');
|
|
|
|
self::postItem($activity, $item);
|
|
}
|
|
|
|
/**
|
|
* Delete items
|
|
*
|
|
* @param array $activity
|
|
*/
|
|
public static function deleteItem($activity)
|
|
{
|
|
$owner = Contact::getIdForURL($activity['actor']);
|
|
|
|
Logger::log('Deleting item ' . $activity['object_id'] . ' from ' . $owner, Logger::DEBUG);
|
|
Item::delete(['uri' => $activity['object_id'], 'owner-id' => $owner]);
|
|
}
|
|
|
|
/**
|
|
* Prepare the item array for an activity
|
|
*
|
|
* @param array $activity Activity array
|
|
* @param string $verb Activity verb
|
|
*/
|
|
public static function createActivity($activity, $verb)
|
|
{
|
|
$item = [];
|
|
$item['verb'] = $verb;
|
|
$item['parent-uri'] = $activity['object_id'];
|
|
$item['gravity'] = GRAVITY_ACTIVITY;
|
|
$item['object-type'] = ACTIVITY_OBJ_NOTE;
|
|
|
|
$item['diaspora_signed_text'] = defaults($activity, 'diaspora:like', '');
|
|
|
|
self::postItem($activity, $item);
|
|
}
|
|
|
|
/**
|
|
* Create an event
|
|
*
|
|
* @param array $activity Activity array
|
|
* @param array $item
|
|
*/
|
|
public static function createEvent($activity, $item)
|
|
{
|
|
$event['summary'] = HTML::toBBCode($activity['name']);
|
|
$event['desc'] = HTML::toBBCode($activity['content']);
|
|
$event['start'] = $activity['start-time'];
|
|
$event['finish'] = $activity['end-time'];
|
|
$event['nofinish'] = empty($event['finish']);
|
|
$event['location'] = $activity['location'];
|
|
$event['adjust'] = true;
|
|
$event['cid'] = $item['contact-id'];
|
|
$event['uid'] = $item['uid'];
|
|
$event['uri'] = $item['uri'];
|
|
$event['edited'] = $item['edited'];
|
|
$event['private'] = $item['private'];
|
|
$event['guid'] = $item['guid'];
|
|
$event['plink'] = $item['plink'];
|
|
|
|
$condition = ['uri' => $item['uri'], 'uid' => $item['uid']];
|
|
$ev = DBA::selectFirst('event', ['id'], $condition);
|
|
if (DBA::isResult($ev)) {
|
|
$event['id'] = $ev['id'];
|
|
}
|
|
|
|
$event_id = Event::store($event);
|
|
Logger::log('Event '.$event_id.' was stored', Logger::DEBUG);
|
|
}
|
|
|
|
/**
|
|
* Creates an item post
|
|
*
|
|
* @param array $activity Activity data
|
|
* @param array $item item array
|
|
*/
|
|
private static function postItem($activity, $item)
|
|
{
|
|
/// @todo What to do with $activity['context']?
|
|
|
|
if (($item['gravity'] != GRAVITY_PARENT) && !Item::exists(['uri' => $item['parent-uri']])) {
|
|
Logger::log('Parent ' . $item['parent-uri'] . ' not found, message will be discarded.', Logger::DEBUG);
|
|
return;
|
|
}
|
|
|
|
$item['network'] = Protocol::ACTIVITYPUB;
|
|
$item['private'] = !in_array(0, $activity['receiver']);
|
|
$item['author-link'] = $activity['author'];
|
|
$item['author-id'] = Contact::getIdForURL($activity['author'], 0, true);
|
|
|
|
if (empty($activity['thread-completion'])) {
|
|
$item['owner-link'] = $activity['actor'];
|
|
$item['owner-id'] = Contact::getIdForURL($activity['actor'], 0, true);
|
|
} else {
|
|
Logger::log('Ignoring actor because of thread completion.', Logger::DEBUG);
|
|
$item['owner-link'] = $item['author-link'];
|
|
$item['owner-id'] = $item['author-id'];
|
|
}
|
|
|
|
$item['uri'] = $activity['id'];
|
|
|
|
if (($item['parent-uri'] != $item['uri']) && ($item['gravity'] == GRAVITY_COMMENT)) {
|
|
$item_private = !in_array(0, $activity['item_receiver']);
|
|
$parent = Item::selectFirst(['private'], ['uri' => $item['parent-uri']]);
|
|
if (!DBA::isResult($parent)) {
|
|
return;
|
|
}
|
|
if ($item_private && !$parent['private']) {
|
|
Logger::log('Item ' . $item['uri'] . ' is private but the parent ' . $item['parent-uri'] . ' is not. So we drop it.');
|
|
return;
|
|
}
|
|
}
|
|
|
|
$item['created'] = $activity['published'];
|
|
$item['edited'] = $activity['updated'];
|
|
$item['guid'] = $activity['diaspora:guid'];
|
|
$item['title'] = HTML::toBBCode($activity['name']);
|
|
$item['content-warning'] = HTML::toBBCode($activity['summary']);
|
|
$content = self::replaceEmojis($activity['emojis'], HTML::toBBCode($activity['content']));
|
|
$item['body'] = self::convertMentions($content);
|
|
|
|
if (($activity['object_type'] == 'as:Video') && !empty($activity['alternate-url'])) {
|
|
$item['body'] .= "\n[video]" . $activity['alternate-url'] . '[/video]';
|
|
}
|
|
|
|
$item['location'] = $activity['location'];
|
|
|
|
if (!empty($item['latitude']) && !empty($item['longitude'])) {
|
|
$item['coord'] = $item['latitude'] . ' ' . $item['longitude'];
|
|
}
|
|
|
|
$item['tag'] = self::constructTagList($activity['tags'], $activity['sensitive']);
|
|
$item['app'] = $activity['generator'];
|
|
$item['plink'] = defaults($activity, 'alternate-url', $item['uri']);
|
|
|
|
$item = self::constructAttachList($activity['attachments'], $item);
|
|
|
|
if (!empty($activity['source'])) {
|
|
$item['body'] = $activity['source'];
|
|
}
|
|
|
|
foreach ($activity['receiver'] as $receiver) {
|
|
$item['uid'] = $receiver;
|
|
$item['contact-id'] = Contact::getIdForURL($activity['author'], $receiver, true);
|
|
|
|
if (($receiver != 0) && empty($item['contact-id'])) {
|
|
$item['contact-id'] = Contact::getIdForURL($activity['author'], 0, true);
|
|
}
|
|
|
|
if ($activity['object_type'] == 'as:Event') {
|
|
self::createEvent($activity, $item);
|
|
}
|
|
|
|
$item_id = Item::insert($item);
|
|
Logger::log('Storing for user ' . $item['uid'] . ': ' . $item_id);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Fetches missing posts
|
|
*
|
|
* @param $url
|
|
* @param $child
|
|
*/
|
|
private static function fetchMissingActivity($url, $child)
|
|
{
|
|
if (Config::get('system', 'ostatus_full_threads')) {
|
|
return;
|
|
}
|
|
|
|
$uid = ActivityPub\Receiver::getFirstUserFromReceivers($child['receiver']);
|
|
|
|
$object = ActivityPub::fetchContent($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;
|
|
}
|
|
|
|
$activity = [];
|
|
$activity['@context'] = $object['@context'];
|
|
unset($object['@context']);
|
|
$activity['id'] = $object['id'];
|
|
$activity['to'] = defaults($object, 'to', []);
|
|
$activity['cc'] = defaults($object, 'cc', []);
|
|
$activity['actor'] = $child['author'];
|
|
$activity['object'] = $object;
|
|
$activity['published'] = defaults($object, 'published', $child['published']);
|
|
$activity['type'] = 'Create';
|
|
|
|
$ldactivity = JsonLD::compact($activity);
|
|
|
|
$ldactivity['thread-completion'] = true;
|
|
|
|
ActivityPub\Receiver::processActivity($ldactivity);
|
|
Logger::log('Activity ' . $url . ' had been fetched and processed.');
|
|
}
|
|
|
|
/**
|
|
* perform a "follow" request
|
|
*
|
|
* @param array $activity
|
|
*/
|
|
public static function followUser($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']], ['id' => $cid]);
|
|
$contact = DBA::selectFirst('contact', [], ['id' => $cid, 'network' => Protocol::NATIVE_SUPPORT]);
|
|
} else {
|
|
$contact = false;
|
|
}
|
|
|
|
$item = ['author-id' => Contact::getIdForURL($activity['actor']),
|
|
'author-link' => $activity['actor']];
|
|
|
|
// Ensure that the contact has got the right network type
|
|
self::switchContact($item['author-id']);
|
|
|
|
Contact::addRelationship($owner, $contact, $item);
|
|
$cid = Contact::getIdForURL($activity['actor'], $uid);
|
|
if (empty($cid)) {
|
|
return;
|
|
}
|
|
|
|
if (empty($contact)) {
|
|
DBA::update('contact', ['hub-verify' => $activity['id']], ['id' => $cid]);
|
|
}
|
|
|
|
Logger::log('Follow user ' . $uid . ' from contact ' . $cid . ' with id ' . $activity['id']);
|
|
}
|
|
|
|
/**
|
|
* Update the given profile
|
|
*
|
|
* @param array $activity
|
|
*/
|
|
public static function updatePerson($activity)
|
|
{
|
|
if (empty($activity['object_id'])) {
|
|
return;
|
|
}
|
|
|
|
Logger::log('Updating profile for ' . $activity['object_id'], Logger::DEBUG);
|
|
APContact::getByURL($activity['object_id'], true);
|
|
}
|
|
|
|
/**
|
|
* Delete the given profile
|
|
*
|
|
* @param array $activity
|
|
*/
|
|
public static function deletePerson($activity)
|
|
{
|
|
if (empty($activity['object_id']) || empty($activity['actor'])) {
|
|
Logger::log('Empty object id or actor.', Logger::DEBUG);
|
|
return;
|
|
}
|
|
|
|
if ($activity['object_id'] != $activity['actor']) {
|
|
Logger::log('Object id does not match actor.', Logger::DEBUG);
|
|
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::log('Deleted contact ' . $activity['object_id'], Logger::DEBUG);
|
|
}
|
|
|
|
/**
|
|
* Accept a follow request
|
|
*
|
|
* @param array $activity
|
|
*/
|
|
public static function acceptFollowUser($activity)
|
|
{
|
|
$uid = User::getIdForURL($activity['object_actor']);
|
|
if (empty($uid)) {
|
|
return;
|
|
}
|
|
|
|
$owner = User::getOwnerDataById($uid);
|
|
|
|
$cid = Contact::getIdForURL($activity['actor'], $uid);
|
|
if (empty($cid)) {
|
|
Logger::log('No contact found for ' . $activity['actor'], Logger::DEBUG);
|
|
return;
|
|
}
|
|
|
|
self::switchContact($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::log('Accept contact request from contact ' . $cid . ' for user ' . $uid, Logger::DEBUG);
|
|
}
|
|
|
|
/**
|
|
* Reject a follow request
|
|
*
|
|
* @param array $activity
|
|
*/
|
|
public static function rejectFollowUser($activity)
|
|
{
|
|
$uid = User::getIdForURL($activity['object_actor']);
|
|
if (empty($uid)) {
|
|
return;
|
|
}
|
|
|
|
$owner = User::getOwnerDataById($uid);
|
|
|
|
$cid = Contact::getIdForURL($activity['actor'], $uid);
|
|
if (empty($cid)) {
|
|
Logger::log('No contact found for ' . $activity['actor'], Logger::DEBUG);
|
|
return;
|
|
}
|
|
|
|
self::switchContact($cid);
|
|
|
|
if (DBA::exists('contact', ['id' => $cid, 'rel' => Contact::SHARING, 'pending' => true])) {
|
|
Contact::remove($cid);
|
|
Logger::log('Rejected contact request from contact ' . $cid . ' for user ' . $uid . ' - contact had been removed.', Logger::DEBUG);
|
|
} else {
|
|
Logger::log('Rejected contact request from contact ' . $cid . ' for user ' . $uid . '.', Logger::DEBUG);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Undo activity like "like" or "dislike"
|
|
*
|
|
* @param array $activity
|
|
*/
|
|
public static function undoActivity($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::delete(['uri' => $activity['object_id'], 'author-id' => $author_id, 'gravity' => GRAVITY_ACTIVITY]);
|
|
}
|
|
|
|
/**
|
|
* Activity to remove a follower
|
|
*
|
|
* @param array $activity
|
|
*/
|
|
public static function undoFollowUser($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::log('No contact found for ' . $activity['actor'], Logger::DEBUG);
|
|
return;
|
|
}
|
|
|
|
self::switchContact($cid);
|
|
|
|
$contact = DBA::selectFirst('contact', [], ['id' => $cid]);
|
|
if (!DBA::isResult($contact)) {
|
|
return;
|
|
}
|
|
|
|
Contact::removeFollower($owner, $contact);
|
|
Logger::log('Undo following request from contact ' . $cid . ' for user ' . $uid, Logger::DEBUG);
|
|
}
|
|
|
|
/**
|
|
* Switches a contact to AP if needed
|
|
*
|
|
* @param integer $cid Contact ID
|
|
*/
|
|
private static function switchContact($cid)
|
|
{
|
|
$contact = DBA::selectFirst('contact', ['network'], ['id' => $cid, 'network' => Protocol::NATIVE_SUPPORT]);
|
|
if (!DBA::isResult($contact) || ($contact['network'] == Protocol::ACTIVITYPUB)) {
|
|
return;
|
|
}
|
|
|
|
Logger::log('Change existing contact ' . $cid . ' from ' . $contact['network'] . ' to ActivityPub.');
|
|
Contact::updateFromProbe($cid, Protocol::ACTIVITYPUB);
|
|
}
|
|
}
|