friendica-github/src/Worker/Notifier.php

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<?php
/**
* @file src/Worker/Notifier.php
*/
namespace Friendica\Worker;
use Friendica\BaseObject;
use Friendica\Core\Config;
use Friendica\Core\Hook;
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use Friendica\Core\Logger;
use Friendica\Core\Protocol;
use Friendica\Core\Worker;
use Friendica\Database\DBA;
use Friendica\Model\APContact;
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use Friendica\Model\Contact;
use Friendica\Model\Conversation;
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use Friendica\Model\Group;
use Friendica\Model\Item;
use Friendica\Model\ItemDeliveryData;
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use Friendica\Model\PushSubscriber;
use Friendica\Model\User;
use Friendica\Network\Probe;
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use Friendica\Protocol\ActivityPub;
use Friendica\Protocol\Diaspora;
use Friendica\Protocol\OStatus;
use Friendica\Protocol\Salmon;
require_once 'include/items.php';
/*
* The notifier is typically called with:
*
* Worker::add(PRIORITY_HIGH, "Notifier", COMMAND, ITEM_ID);
*
* where COMMAND is one of the constants that are defined in Worker/Delivery.php
* and ITEM_ID is the id of the item in the database that needs to be sent to others.
*/
class Notifier
{
public static function execute($cmd, $target_id)
{
$a = BaseObject::getApp();
Logger::log('Invoked: ' . $cmd . ': ' . $target_id, Logger::DEBUG);
$top_level = false;
$recipients = [];
$url_recipients = [];
$delivery_contacts_stmt = null;
$target_item = [];
$items = [];
$delivery_queue_count = 0;
if ($cmd == Delivery::MAIL) {
$message = DBA::selectFirst('mail', ['uid', 'contact-id'], ['id' => $target_id]);
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if (!DBA::isResult($message)) {
return;
}
$uid = $message['uid'];
$recipients[] = $message['contact-id'];
$mail = ActivityPub\Transmitter::ItemArrayFromMail($target_id);
$inboxes = ActivityPub\Transmitter::fetchTargetInboxes($mail, $uid, true);
foreach ($inboxes as $inbox) {
Logger::info('Delivery via ActivityPub', ['cmd' => $cmd, 'id' => $target_id, 'inbox' => $inbox]);
Worker::add(['priority' => PRIORITY_HIGH, 'created' => $a->queue['created'], 'dont_fork' => true],
'APDelivery', $cmd, $target_id, $inbox, $uid);
}
} elseif ($cmd == Delivery::SUGGESTION) {
$suggest = DBA::selectFirst('fsuggest', ['uid', 'cid'], ['id' => $target_id]);
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if (!DBA::isResult($suggest)) {
return;
}
$uid = $suggest['uid'];
$recipients[] = $suggest['cid'];
} elseif ($cmd == Delivery::REMOVAL) {
return self::notifySelfRemoval($target_id, $a->queue['priority'], $a->queue['created']);
} elseif ($cmd == Delivery::RELOCATION) {
$uid = $target_id;
$condition = ['uid' => $target_id, 'self' => false, 'network' => [Protocol::DFRN, Protocol::DIASPORA]];
$delivery_contacts_stmt = DBA::select('contact', ['id', 'url', 'network', 'protocol', 'batch'], $condition);
} else {
// find ancestors
$condition = ['id' => $target_id, 'visible' => true, 'moderated' => false];
$target_item = Item::selectFirst([], $condition);
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if (!DBA::isResult($target_item) || !intval($target_item['parent'])) {
return;
}
if (!empty($target_item['contact-uid'])) {
$uid = $target_item['contact-uid'];
} elseif (!empty($target_item['uid'])) {
$uid = $target_item['uid'];
} else {
Logger::log('Only public users for item ' . $target_id, Logger::DEBUG);
return;
}
$condition = ['parent' => $target_item['parent'], 'visible' => true, 'moderated' => false];
$params = ['order' => ['id']];
$items_stmt = Item::select([], $condition, $params);
if (!DBA::isResult($items_stmt)) {
return;
}
$items = Item::inArray($items_stmt);
// avoid race condition with deleting entries
if ($items[0]['deleted']) {
foreach ($items as $item) {
$item['deleted'] = 1;
}
}
if ((count($items) == 1) && ($items[0]['id'] === $target_item['id']) && ($items[0]['uri'] === $items[0]['parent-uri'])) {
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Logger::log('Top level post');
$top_level = true;
}
}
$owner = User::getOwnerDataById($uid);
if (!$owner) {
return;
}
// Should the post be transmitted to Diaspora?
$diaspora_delivery = true;
// If this is a public conversation, notify the feed hub
$public_message = true;
// Do a PuSH
$push_notify = false;
// Deliver directly to a forum, don't PuSH
$direct_forum_delivery = false;
$followup = false;
$recipients_followup = [];
if (!empty($target_item) && !empty($items)) {
$parent = $items[0];
if (!self::isRemovalActivity($cmd, $owner, Protocol::ACTIVITYPUB)) {
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$delivery_queue_count += self::activityPubDelivery($cmd, $target_item, $parent, $a->queue['priority'], $a->queue['created'], $owner);
}
$fields = ['network', 'author-id', 'author-link', 'owner-id'];
$condition = ['uri' => $target_item["thr-parent"], 'uid' => $target_item["uid"]];
$thr_parent = Item::selectFirst($fields, $condition);
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Logger::log('GUID: ' . $target_item["guid"] . ': Parent is ' . $parent['network'] . '. Thread parent is ' . $thr_parent['network'], Logger::DEBUG);
// Only deliver threaded replies (comment to a comment) to Diaspora
// when the original comment author does support the Diaspora protocol.
if ($target_item['parent-uri'] != $target_item['thr-parent']) {
$diaspora_delivery = Diaspora::isSupportedByContactUrl($thr_parent['author-link']);
Logger::info('Threaded comment', ['diaspora_delivery' => (int)$diaspora_delivery]);
}
// This is IMPORTANT!!!!
// We will only send a "notify owner to relay" or followup message if the referenced post
// originated on our system by virtue of having our hostname somewhere
// in the URI, AND it was a comment (not top_level) AND the parent originated elsewhere.
// if $parent['wall'] == 1 we will already have the parent message in our array
// and we will relay the whole lot.
$localhost = str_replace('www.','',$a->getHostName());
if (strpos($localhost,':')) {
$localhost = substr($localhost,0,strpos($localhost,':'));
}
/**
*
* Be VERY CAREFUL if you make any changes to the following several lines. Seemingly innocuous changes
* have been known to cause runaway conditions which affected several servers, along with
* permissions issues.
*
*/
$relay_to_owner = false;
if (!$top_level && ($parent['wall'] == 0) && (stristr($target_item['uri'],$localhost))) {
$relay_to_owner = true;
}
if (($cmd === Delivery::UPLINK) && (intval($parent['forum_mode']) == 1) && !$top_level) {
$relay_to_owner = true;
}
// until the 'origin' flag has been in use for several months
// we will just use it as a fallback test
// later we will be able to use it as the primary test of whether or not to relay.
if (!$target_item['origin']) {
$relay_to_owner = false;
}
if ($parent['origin']) {
$relay_to_owner = false;
}
// Special treatment for forum posts
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if (Item::isForumPost($target_item, $owner)) {
$relay_to_owner = true;
$direct_forum_delivery = true;
}
// Avoid that comments in a forum thread are sent to OStatus
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if (Item::isForumPost($parent, $owner)) {
$direct_forum_delivery = true;
}
if ($relay_to_owner) {
// local followup to remote post
$followup = true;
$public_message = false; // not public
$recipients = [$parent['contact-id']];
$recipients_followup = [$parent['contact-id']];
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Logger::log('Followup ' . $target_item['guid'] . ' to ' . $parent['contact-id'], Logger::DEBUG);
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//if (!$target_item['private'] && $target_item['wall'] &&
if (!$target_item['private'] &&
(strlen($target_item['allow_cid'].$target_item['allow_gid'].
$target_item['deny_cid'].$target_item['deny_gid']) == 0))
$push_notify = true;
if (($thr_parent && ($thr_parent['network'] == Protocol::OSTATUS)) || ($parent['network'] == Protocol::OSTATUS)) {
$push_notify = true;
if ($parent["network"] == Protocol::OSTATUS) {
// Distribute the message to the DFRN contacts as if this wasn't a followup since OStatus can't relay comments
// Currently it is work at progress
$condition = ['uid' => $uid, 'network' => Protocol::DFRN, 'blocked' => false, 'pending' => false, 'archive' => false];
$followup_contacts_stmt = DBA::select('contact', ['id'], $condition);
while($followup_contact = DBA::fetch($followup_contacts_stmt)) {
$recipients_followup[] = $followup_contact['id'];
}
DBA::close($followup_contacts_stmt);
}
}
if ($direct_forum_delivery) {
$push_notify = false;
}
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Logger::log('Notify ' . $target_item["guid"] .' via PuSH: ' . ($push_notify ? "Yes":"No"), Logger::DEBUG);
} else {
$followup = false;
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Logger::log('Distributing directly ' . $target_item["guid"], Logger::DEBUG);
// don't send deletions onward for other people's stuff
if ($target_item['deleted'] && !intval($target_item['wall'])) {
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Logger::log('Ignoring delete notification for non-wall item');
return;
}
if (strlen($parent['allow_cid'])
|| strlen($parent['allow_gid'])
|| strlen($parent['deny_cid'])
|| strlen($parent['deny_gid'])) {
$public_message = false; // private recipients, not public
}
$allow_people = expand_acl($parent['allow_cid']);
$allow_groups = Group::expand($uid, expand_acl($parent['allow_gid']),true);
$deny_people = expand_acl($parent['deny_cid']);
$deny_groups = Group::expand($uid, expand_acl($parent['deny_gid']));
// if our parent is a public forum (forum_mode == 1), uplink to the origional author causing
// a delivery fork. private groups (forum_mode == 2) do not uplink
if ((intval($parent['forum_mode']) == 1) && !$top_level && ($cmd !== Delivery::UPLINK)) {
Worker::add($a->queue['priority'], 'Notifier', Delivery::UPLINK, $target_id);
}
foreach ($items as $item) {
$recipients[] = $item['contact-id'];
// pull out additional tagged people to notify (if public message)
if ($public_message && strlen($item['inform'])) {
$people = explode(',',$item['inform']);
foreach ($people as $person) {
if (substr($person,0,4) === 'cid:') {
$recipients[] = intval(substr($person,4));
} else {
$url_recipients[] = substr($person,4);
}
}
}
}
if (count($url_recipients)) {
Logger::log('Deliver ' . $target_item["guid"] . ' to _recipients ' . json_encode($url_recipients));
}
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$recipients = array_unique(array_merge($recipients, $allow_people, $allow_groups));
$deny = array_unique(array_merge($deny_people, $deny_groups));
$recipients = array_diff($recipients, $deny);
// If this is a public message and pubmail is set on the parent, include all your email contacts
if (
function_exists('imap_open')
&& !Config::get('system','imap_disabled')
&& $public_message
&& intval($target_item['pubmail'])
) {
$mail_contacts_stmt = DBA::select('contact', ['id'], ['uid' => $uid, 'network' => Protocol::MAIL]);
while ($mail_contact = DBA::fetch($mail_contacts_stmt)) {
$recipients[] = $mail_contact['id'];
}
DBA::close($mail_contacts_stmt);
}
}
// If the thread parent is OStatus then do some magic to distribute the messages.
// We have not only to look at the parent, since it could be a Friendica thread.
if (($thr_parent && ($thr_parent['network'] == Protocol::OSTATUS)) || ($parent['network'] == Protocol::OSTATUS)) {
$diaspora_delivery = false;
Logger::log('Some parent is OStatus for '.$target_item["guid"]." - Author: ".$thr_parent['author-id']." - Owner: ".$thr_parent['owner-id'], Logger::DEBUG);
// Send a salmon to the parent author
$probed_contact = DBA::selectFirst('contact', ['url', 'notify'], ['id' => $thr_parent['author-id']]);
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if (DBA::isResult($probed_contact) && !empty($probed_contact["notify"])) {
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Logger::log('Notify parent author '.$probed_contact["url"].': '.$probed_contact["notify"]);
$url_recipients[$probed_contact["notify"]] = $probed_contact["notify"];
}
// Send a salmon to the parent owner
$probed_contact = DBA::selectFirst('contact', ['url', 'notify'], ['id' => $thr_parent['owner-id']]);
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if (DBA::isResult($probed_contact) && !empty($probed_contact["notify"])) {
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Logger::log('Notify parent owner '.$probed_contact["url"].': '.$probed_contact["notify"]);
$url_recipients[$probed_contact["notify"]] = $probed_contact["notify"];
}
// Send a salmon notification to every person we mentioned in the post
$arr = explode(',',$target_item['tag']);
foreach ($arr as $x) {
//Logger::log('Checking tag '.$x, Logger::DEBUG);
$matches = null;
if (preg_match('/@\[url=([^\]]*)\]/',$x,$matches)) {
$probed_contact = Probe::uri($matches[1]);
if ($probed_contact["notify"] != "") {
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Logger::log('Notify mentioned user '.$probed_contact["url"].': '.$probed_contact["notify"]);
$url_recipients[$probed_contact["notify"]] = $probed_contact["notify"];
}
}
}
// It only makes sense to distribute answers to OStatus messages to Friendica and OStatus - but not Diaspora
$networks = [Protocol::DFRN];
} elseif ($diaspora_delivery) {
$networks = [Protocol::DFRN, Protocol::DIASPORA, Protocol::MAIL];
} else {
$networks = [Protocol::DFRN, Protocol::MAIL];
}
} else {
$public_message = false;
}
if (empty($delivery_contacts_stmt)) {
if ($followup) {
$recipients = $recipients_followup;
}
$condition = ['id' => $recipients, 'self' => false,
'blocked' => false, 'pending' => false, 'archive' => false];
if (!empty($networks)) {
$condition['network'] = $networks;
}
$delivery_contacts_stmt = DBA::select('contact', ['id', 'url', 'network', 'protocol', 'batch'], $condition);
}
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$conversants = [];
$batch_delivery = false;
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if ($public_message && !in_array($cmd, [Delivery::MAIL, Delivery::SUGGESTION]) && !$followup) {
$relay_list = [];
if ($diaspora_delivery) {
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$batch_delivery = true;
$relay_list_stmt = DBA::p(
"SELECT
`batch`,
ANY_VALUE(`id`) AS `id`,
ANY_VALUE(`name`) AS `name`,
ANY_VALUE(`network`) AS `network`,
ANY_VALUE(`protocol`) AS `protocol`
FROM `contact`
WHERE `network` = ?
AND `batch` != ''
AND `uid` = ?
AND `rel` != ?
AND NOT `blocked`
AND NOT `pending`
AND NOT `archive`
GROUP BY `batch`",
Protocol::DIASPORA,
$owner['uid'],
Contact::SHARING
);
$relay_list = DBA::toArray($relay_list_stmt);
// Fetch the participation list
// The function will ensure that there are no duplicates
$relay_list = Diaspora::participantsForThread($target_id, $relay_list);
// Add the relay to the list, avoid duplicates.
// Don't send community posts to the relay. Forum posts via the Diaspora protocol are looking ugly.
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if (!$followup && !Item::isForumPost($target_item, $owner)) {
$relay_list = Diaspora::relayList($target_id, $relay_list);
}
}
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$condition = ['network' => Protocol::DFRN, 'uid' => $owner['uid'], 'blocked' => false,
'pending' => false, 'archive' => false, 'rel' => [Contact::FOLLOWER, Contact::FRIEND]];
$r2 = DBA::toArray(DBA::select('contact', ['id', 'url', 'name', 'network', 'protocol'], $condition));
$r = array_merge($r2, $relay_list);
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if (DBA::isResult($r)) {
foreach ($r as $rr) {
if (!empty($rr['id']) && Contact::isArchived($rr['id'])) {
Logger::info('Contact is archived', $rr);
continue;
}
if (self::isRemovalActivity($cmd, $owner, $rr['network'])) {
Logger::log('Skipping dropping for ' . $rr['url'] . ' since the network supports account removal commands.', Logger::DEBUG);
continue;
}
if (self::skipDFRN($rr, $target_item, $cmd)) {
Logger::info('Contact can be delivered via AP, so skip delivery via legacy DFRN', ['url' => $rr['url']]);
continue;
}
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$conversants[] = $rr['id'];
Logger::log('Public delivery of item ' . $target_item["guid"] . ' (' . $target_id . ') to ' . json_encode($rr), Logger::DEBUG);
// Ensure that posts with our own protocol arrives before Diaspora posts arrive.
// Situation is that sometimes Friendica servers receive Friendica posts over the Diaspora protocol first.
// The conversion in Markdown reduces the formatting, so these posts should arrive after the Friendica posts.
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// This is only important for high and medium priority tasks and not for Low priority jobs like deletions.
if (($rr['network'] == Protocol::DIASPORA) && in_array($a->queue['priority'], [PRIORITY_HIGH, PRIORITY_MEDIUM])) {
$deliver_options = ['priority' => $a->queue['priority'], 'dont_fork' => true];
} else {
$deliver_options = ['priority' => $a->queue['priority'], 'created' => $a->queue['created'], 'dont_fork' => true];
}
if (Worker::add($deliver_options, 'Delivery', $cmd, $target_id, (int)$rr['id'])) {
$delivery_queue_count++;
}
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}
}
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$push_notify = true;
}
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// delivery loop
while ($contact = DBA::fetch($delivery_contacts_stmt)) {
if (!empty($contact['id']) && Contact::isArchived($contact['id'])) {
Logger::info('Contact is archived', $contact);
continue;
}
if (self::isRemovalActivity($cmd, $owner, $contact['network'])) {
Logger::log('Skipping dropping for ' . $contact['url'] . ' since the network supports account removal commands.', Logger::DEBUG);
continue;
}
if (self::skipDFRN($contact, $target_item, $cmd)) {
Logger::info('Contact can be delivered via AP, so skip delivery via legacy DFRN', ['url' => $contact['url']]);
continue;
}
// Don't deliver to Diaspora if it already had been done as batch delivery
if (($contact['network'] == Protocol::DIASPORA) && $batch_delivery) {
Logger::log('Already delivered id ' . $target_id . ' via batch to ' . json_encode($contact), Logger::DEBUG);
continue;
}
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// Don't deliver to folks who have already been delivered to
if (in_array($contact['id'], $conversants)) {
Logger::log('Already delivered id ' . $target_id. ' to ' . json_encode($contact), Logger::DEBUG);
continue;
}
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Logger::log('Delivery of item ' . $target_id . ' to ' . json_encode($contact), Logger::DEBUG);
// Ensure that posts with our own protocol arrives before Diaspora posts arrive.
// Situation is that sometimes Friendica servers receive Friendica posts over the Diaspora protocol first.
// The conversion in Markdown reduces the formatting, so these posts should arrive after the Friendica posts.
if ($contact['network'] == Protocol::DIASPORA) {
$deliver_options = ['priority' => $a->queue['priority'], 'dont_fork' => true];
} else {
$deliver_options = ['priority' => $a->queue['priority'], 'created' => $a->queue['created'], 'dont_fork' => true];
}
if (Worker::add($deliver_options, 'Delivery', $cmd, $target_id, (int)$contact['id'])) {
$delivery_queue_count++;
}
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}
DBA::close($delivery_contacts_stmt);
$url_recipients = array_filter($url_recipients);
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// send salmon slaps to mentioned remote tags (@foo@example.com) in OStatus posts
// They are especially used for notifications to OStatus users that don't follow us.
if (!Config::get('system', 'dfrn_only') && count($url_recipients) && ($public_message || $push_notify) && !empty($target_item)) {
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$slap = OStatus::salmon($target_item, $owner);
foreach ($url_recipients as $url) {
Logger::log('Salmon delivery of item ' . $target_id . ' to ' . $url);
/// @TODO Redeliver/queue these items on failure, though there is no contact record
$delivery_queue_count++;
Salmon::slapper($owner, $url, $slap);
ItemDeliveryData::incrementQueueDone($target_id, ItemDeliveryData::OSTATUS);
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}
}
// Notify PuSH subscribers (Used for OStatus distribution of regular posts)
if ($push_notify) {
Logger::log('Activating internal PuSH for item '.$target_id, Logger::DEBUG);
// Handling the pubsubhubbub requests
PushSubscriber::publishFeed($owner['uid'], $a->queue['priority']);
}
if (!empty($target_item)) {
Logger::log('Calling hooks for ' . $cmd . ' ' . $target_id, Logger::DEBUG);
Hook::fork($a->queue['priority'], 'notifier_normal', $target_item);
Hook::callAll('notifier_end', $target_item);
// Workaround for pure connector posts
if (in_array($cmd, [Delivery::POST, Delivery::POKE])) {
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if ($delivery_queue_count == 0) {
ItemDeliveryData::incrementQueueDone($target_item['id']);
$delivery_queue_count = 1;
}
ItemDeliveryData::incrementQueueCount($target_item['id'], $delivery_queue_count);
}
}
return;
}
/**
* Checks if the current delivery process needs to be transported via DFRN.
*
* @param array $contact Receiver of the post
* @param array $item The post
* @param string $cmd Notifier command
* @return bool
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
* @throws \ImagickException
*/
private static function skipDFRN($contact, $item, $cmd)
{
// Use DFRN if we are on the same site
if (Contact::isLocal($contact['url'])) {
return false;
}
// Don't skip when author or owner don't have AP profiles
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if ((!empty($item['author-link']) && empty(APContact::getByURL($item['author-link'], false))) || (!empty($item['owner-link']) && empty(APContact::getByURL($item['owner-link'], false)))) {
return false;
}
// Don't skip DFRN delivery for these commands
if (in_array($cmd, [Delivery::SUGGESTION, Delivery::REMOVAL, Delivery::RELOCATION, Delivery::POKE])) {
return false;
}
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// Skip DFRN when the item will be (forcefully) delivered via AP
if (Config::get('debug', 'total_ap_delivery') && ($contact['network'] == Protocol::DFRN) && !empty(APContact::getByURL($contact['url'], false))) {
return true;
}
// Skip DFRN delivery if the contact speaks ActivityPub
return in_array($contact['network'], [Protocol::DFRN, Protocol::DIASPORA]) && ($contact['protocol'] == Protocol::ACTIVITYPUB);
}
/**
* Checks if the current action is a deletion command of a account removal activity
* For Diaspora and ActivityPub we don't need to send single item deletion calls.
* These protocols do have a dedicated command for deleting a whole account.
*
* @param string $cmd Notifier command
* @param array $owner Sender of the post
* @param string $network Receiver network
* @return bool
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
* @throws \ImagickException
*/
private static function isRemovalActivity($cmd, $owner, $network)
{
return ($cmd == Delivery::DELETION) && $owner['account_removed'] && in_array($network, [Protocol::ACTIVITYPUB, Protocol::DIASPORA]);
}
/**
* @param int $self_user_id
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* @param int $priority The priority the Notifier queue item was created with
* @param string $created The date the Notifier queue item was created on
* @return bool
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
* @throws \ImagickException
*/
private static function notifySelfRemoval($self_user_id, $priority, $created)
{
$owner = User::getOwnerDataById($self_user_id);
if (!$owner) {
return false;
}
$contacts_stmt = DBA::select('contact', [], ['self' => false, 'uid' => $self_user_id]);
if (!DBA::isResult($contacts_stmt)) {
return false;
}
while($contact = DBA::fetch($contacts_stmt)) {
Contact::terminateFriendship($owner, $contact, true);
}
DBA::close($contacts_stmt);
$inboxes = ActivityPub\Transmitter::fetchTargetInboxesforUser(0);
foreach ($inboxes as $inbox) {
Logger::info('Account removal via ActivityPub', ['uid' => $self_user_id, 'inbox' => $inbox]);
Worker::add(['priority' => PRIORITY_NEGLIGIBLE, 'created' => $created, 'dont_fork' => true],
'APDelivery', Delivery::REMOVAL, '', $inbox, $self_user_id);
}
return true;
}
/**
* @param string $cmd
* @param array $target_item
* @param array $parent
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* @param int $priority The priority the Notifier queue item was created with
* @param string $created The date the Notifier queue item was created on
* @return int The number of delivery tasks created
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
* @throws \ImagickException
*/
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private static function activityPubDelivery($cmd, array $target_item, array $parent, $priority, $created, $owner)
{
$inboxes = [];
$uid = $target_item['contact-uid'] ?: $target_item['uid'];
if ($target_item['origin']) {
$inboxes = ActivityPub\Transmitter::fetchTargetInboxes($target_item, $uid);
Logger::log('Origin item ' . $target_item['id'] . ' with URL ' . $target_item['uri'] . ' will be distributed.', Logger::DEBUG);
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} elseif (Item::isForumPost($target_item, $owner)) {
$inboxes = ActivityPub\Transmitter::fetchTargetInboxes($target_item, $uid, false, 0, true);
Logger::log('Forum item ' . $target_item['id'] . ' with URL ' . $target_item['uri'] . ' will be distributed.', Logger::DEBUG);
} elseif (!DBA::exists('conversation', ['item-uri' => $target_item['uri'], 'protocol' => Conversation::PARCEL_ACTIVITYPUB])) {
Logger::log('Remote item ' . $target_item['id'] . ' with URL ' . $target_item['uri'] . ' is no AP post. It will not be distributed.', Logger::DEBUG);
return 0;
} elseif ($parent['origin']) {
// Remote items are transmitted via the personal inboxes.
// Doing so ensures that the dedicated receiver will get the message.
$inboxes = ActivityPub\Transmitter::fetchTargetInboxes($parent, $uid, true, $target_item['id']);
Logger::log('Remote item ' . $target_item['id'] . ' with URL ' . $target_item['uri'] . ' will be distributed.', Logger::DEBUG);
}
if (empty($inboxes)) {
Logger::log('No inboxes found for item ' . $target_item['id'] . ' with URL ' . $target_item['uri'] . '. It will not be distributed.', Logger::DEBUG);
return 0;
}
// Fill the item cache
ActivityPub\Transmitter::createCachedActivityFromItem($target_item['id'], true);
$delivery_queue_count = 0;
foreach ($inboxes as $inbox) {
Logger::info('Delivery via ActivityPub', ['cmd' => $cmd, 'id' => $target_item['id'], 'inbox' => $inbox]);
if (Worker::add(['priority' => $priority, 'created' => $created, 'dont_fork' => true],
'APDelivery', $cmd, $target_item['id'], $inbox, $uid)) {
$delivery_queue_count++;
}
}
return $delivery_queue_count;
}
}