504 lines
17 KiB
PHP
504 lines
17 KiB
PHP
<?php
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/**
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* @file src/Worker/Notifier.php
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*/
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namespace Friendica\Worker;
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use Friendica\Core\Addon;
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use Friendica\Core\Config;
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use Friendica\Core\Worker;
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use Friendica\Database\DBM;
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use Friendica\Model\Contact;
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use Friendica\Model\Group;
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use Friendica\Model\Item;
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use Friendica\Model\User;
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use Friendica\Model\PushSubscriber;
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use Friendica\Network\Probe;
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use Friendica\Protocol\Diaspora;
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use Friendica\Protocol\OStatus;
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use Friendica\Protocol\Salmon;
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use Friendica\Worker\Delivery;
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use dba;
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require_once 'include/dba.php';
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require_once 'include/items.php';
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/*
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* The notifier is typically called with:
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*
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* Worker::add(PRIORITY_HIGH, "Notifier", COMMAND, ITEM_ID);
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*
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* where COMMAND is one of the following:
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*
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* activity (in diaspora.php, dfrn_confirm.php, profiles.php)
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* comment-import (in diaspora.php, items.php)
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* comment-new (in item.php)
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* drop (in diaspora.php, items.php, photos.php)
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* edit_post (in item.php)
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* event (in events.php)
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* like (in like.php, poke.php)
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* mail (in message.php)
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* suggest (in fsuggest.php)
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* tag (in photos.php, poke.php, tagger.php)
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* tgroup (in items.php)
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* wall-new (in photos.php, item.php)
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* removeme (in Contact.php)
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* relocate (in uimport.php)
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*
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* and ITEM_ID is the id of the item in the database that needs to be sent to others.
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*/
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class Notifier {
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public static function execute($cmd, $item_id) {
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global $a;
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logger('notifier: invoked: '.$cmd.': '.$item_id, LOGGER_DEBUG);
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$top_level = false;
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$recipients = [];
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$url_recipients = [];
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$normal_mode = true;
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$recipients_relocate = [];
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if ($cmd == Delivery::MAIL) {
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$normal_mode = false;
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$message = dba::selectFirst('mail', ['uid', 'contact-id'], ['id' => $item_id]);
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if (!DBM::is_result($message)) {
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return;
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}
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$uid = $message['uid'];
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$recipients[] = $message['contact-id'];
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} elseif ($cmd == Delivery::SUGGESTION) {
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$normal_mode = false;
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$suggest = dba::selectFirst('fsuggest', ['uid', 'cid'], ['id' => $item_id]);
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if (!DBM::is_result($suggest)) {
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return;
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}
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$uid = $suggest['uid'];
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$recipients[] = $suggest['cid'];
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} elseif ($cmd == Delivery::REMOVAL) {
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$r = q("SELECT `contact`.*, `user`.`prvkey` AS `uprvkey`,
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`user`.`timezone`, `user`.`nickname`, `user`.`sprvkey`, `user`.`spubkey`,
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`user`.`page-flags`, `user`.`prvnets`, `user`.`account-type`, `user`.`guid`
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FROM `contact` INNER JOIN `user` ON `user`.`uid` = `contact`.`uid`
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WHERE `contact`.`uid` = %d AND `contact`.`self` LIMIT 1",
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intval($item_id));
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if (!$r) {
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return;
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}
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$user = $r[0];
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$r = q("SELECT * FROM `contact` WHERE NOT `self` AND `uid` = %d", intval($item_id));
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if (!$r) {
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return;
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}
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foreach ($r as $contact) {
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Contact::terminateFriendship($user, $contact);
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}
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return;
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} elseif ($cmd == Delivery::RELOCATION) {
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$normal_mode = false;
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$uid = $item_id;
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$recipients_relocate = q("SELECT * FROM `contact` WHERE `uid` = %d AND NOT `self` AND `network` IN ('%s', '%s')",
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intval($uid), NETWORK_DFRN, NETWORK_DIASPORA);
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} else {
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// find ancestors
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$condition = ['id' => $item_id, 'visible' => true, 'moderated' => false];
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$target_item = Item::selectFirst([], $condition);
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if (!DBM::is_result($target_item) || !intval($target_item['parent'])) {
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return;
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}
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$parent_id = intval($target_item['parent']);
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$uid = $target_item['contact-uid'];
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$updated = $target_item['edited'];
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$condition = ['parent' => $parent_id, 'visible' => true, 'moderated' => false];
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$params = ['order' => ['id']];
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$ret = Item::select([], $condition, $params);
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if (!DBM::is_result($ret)) {
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return;
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}
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$items = dba::inArray($ret);
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// avoid race condition with deleting entries
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if ($items[0]['deleted']) {
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foreach ($items as $item) {
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$item['deleted'] = 1;
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}
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}
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if ((count($items) == 1) && ($items[0]['id'] === $target_item['id']) && ($items[0]['uri'] === $items[0]['parent-uri'])) {
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logger('notifier: top level post');
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$top_level = true;
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}
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}
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$owner = User::getOwnerDataById($uid);
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if (!$owner) {
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return;
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}
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$walltowall = ($top_level && ($owner['id'] != $items[0]['contact-id']) ? true : false);
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// Should the post be transmitted to Diaspora?
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$diaspora_delivery = true;
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// If this is a public conversation, notify the feed hub
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$public_message = true;
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// Do a PuSH
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$push_notify = false;
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// Deliver directly to a forum, don't PuSH
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$direct_forum_delivery = false;
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$followup = false;
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$recipients_followup = [];
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$conversants = [];
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if (!in_array($cmd, [Delivery::MAIL, Delivery::SUGGESTION, Delivery::RELOCATION])) {
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$parent = $items[0];
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$fields = ['network', 'author-id', 'owner-id'];
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$condition = ['uri' => $target_item["thr-parent"], 'uid' => $target_item["uid"]];
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$thr_parent = dba::selectFirst('item', $fields, $condition);
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logger('GUID: '.$target_item["guid"].': Parent is '.$parent['network'].'. Thread parent is '.$thr_parent['network'], LOGGER_DEBUG);
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// This is IMPORTANT!!!!
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// We will only send a "notify owner to relay" or followup message if the referenced post
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// originated on our system by virtue of having our hostname somewhere
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// in the URI, AND it was a comment (not top_level) AND the parent originated elsewhere.
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// if $parent['wall'] == 1 we will already have the parent message in our array
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// and we will relay the whole lot.
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$localhost = str_replace('www.','',$a->get_hostname());
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if (strpos($localhost,':')) {
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$localhost = substr($localhost,0,strpos($localhost,':'));
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}
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/**
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*
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* Be VERY CAREFUL if you make any changes to the following several lines. Seemingly innocuous changes
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* have been known to cause runaway conditions which affected several servers, along with
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* permissions issues.
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*
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*/
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$relay_to_owner = false;
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if (!$top_level && ($parent['wall'] == 0) && (stristr($target_item['uri'],$localhost))) {
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$relay_to_owner = true;
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}
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if (($cmd === 'uplink') && (intval($parent['forum_mode']) == 1) && !$top_level) {
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$relay_to_owner = true;
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}
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// until the 'origin' flag has been in use for several months
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// we will just use it as a fallback test
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// later we will be able to use it as the primary test of whether or not to relay.
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if (!$target_item['origin']) {
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$relay_to_owner = false;
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}
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if ($parent['origin']) {
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$relay_to_owner = false;
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}
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// Special treatment for forum posts
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if (($target_item['author-id'] != $target_item['owner-id']) &&
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($owner['id'] != $target_item['contact-id']) &&
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($target_item['uri'] === $target_item['parent-uri'])) {
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$fields = ['forum', 'prv'];
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$condition = ['id' => $target_item['contact-id']];
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$contact = dba::selectFirst('contact', $fields, $condition);
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if (!DBM::is_result($contact)) {
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// Should never happen
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return false;
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}
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// Is the post from a forum?
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if ($contact['forum'] || $contact['prv']) {
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$relay_to_owner = true;
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$direct_forum_delivery = true;
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}
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}
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if ($relay_to_owner) {
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// local followup to remote post
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$followup = true;
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$public_message = false; // not public
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$conversant_str = dbesc($parent['contact-id']);
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$recipients = [$parent['contact-id']];
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$recipients_followup = [$parent['contact-id']];
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logger('notifier: followup '.$target_item["guid"].' to '.$conversant_str, LOGGER_DEBUG);
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//if (!$target_item['private'] && $target_item['wall'] &&
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if (!$target_item['private'] &&
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(strlen($target_item['allow_cid'].$target_item['allow_gid'].
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$target_item['deny_cid'].$target_item['deny_gid']) == 0))
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$push_notify = true;
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if (($thr_parent && ($thr_parent['network'] == NETWORK_OSTATUS)) || ($parent['network'] == NETWORK_OSTATUS)) {
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$push_notify = true;
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if ($parent["network"] == NETWORK_OSTATUS) {
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// Distribute the message to the DFRN contacts as if this wasn't a followup since OStatus can't relay comments
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// Currently it is work at progress
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$r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `network` = '%s' AND NOT `blocked` AND NOT `pending` AND NOT `archive`",
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intval($uid),
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dbesc(NETWORK_DFRN)
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);
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if (DBM::is_result($r)) {
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foreach ($r as $rr) {
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$recipients_followup[] = $rr['id'];
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}
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}
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}
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}
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if ($direct_forum_delivery) {
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$push_notify = false;
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}
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logger("Notify ".$target_item["guid"]." via PuSH: ".($push_notify?"Yes":"No"), LOGGER_DEBUG);
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} else {
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$followup = false;
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logger('Distributing directly '.$target_item["guid"], LOGGER_DEBUG);
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// don't send deletions onward for other people's stuff
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if ($target_item['deleted'] && !intval($target_item['wall'])) {
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logger('notifier: ignoring delete notification for non-wall item');
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return;
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}
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if (strlen($parent['allow_cid'])
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|| strlen($parent['allow_gid'])
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|| strlen($parent['deny_cid'])
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|| strlen($parent['deny_gid'])) {
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$public_message = false; // private recipients, not public
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}
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$allow_people = expand_acl($parent['allow_cid']);
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$allow_groups = Group::expand(expand_acl($parent['allow_gid']),true);
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$deny_people = expand_acl($parent['deny_cid']);
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$deny_groups = Group::expand(expand_acl($parent['deny_gid']));
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// if our parent is a public forum (forum_mode == 1), uplink to the origional author causing
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// a delivery fork. private groups (forum_mode == 2) do not uplink
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if ((intval($parent['forum_mode']) == 1) && !$top_level && ($cmd !== 'uplink')) {
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Worker::add($a->queue['priority'], 'Notifier', 'uplink', $item_id);
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}
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foreach ($items as $item) {
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$recipients[] = $item['contact-id'];
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$conversants[] = $item['contact-id'];
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// pull out additional tagged people to notify (if public message)
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if ($public_message && strlen($item['inform'])) {
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$people = explode(',',$item['inform']);
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foreach ($people as $person) {
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if (substr($person,0,4) === 'cid:') {
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$recipients[] = intval(substr($person,4));
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$conversants[] = intval(substr($person,4));
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} else {
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$url_recipients[] = substr($person,4);
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}
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}
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}
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}
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if (count($url_recipients)) {
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logger('notifier: '.$target_item["guid"].' url_recipients ' . print_r($url_recipients,true));
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}
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$conversants = array_unique($conversants);
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$recipients = array_unique(array_merge($recipients,$allow_people,$allow_groups));
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$deny = array_unique(array_merge($deny_people,$deny_groups));
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$recipients = array_diff($recipients,$deny);
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$conversant_str = dbesc(implode(', ',$conversants));
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}
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// If the thread parent is OStatus then do some magic to distribute the messages.
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// We have not only to look at the parent, since it could be a Friendica thread.
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if (($thr_parent && ($thr_parent['network'] == NETWORK_OSTATUS)) || ($parent['network'] == NETWORK_OSTATUS)) {
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$diaspora_delivery = false;
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logger('Some parent is OStatus for '.$target_item["guid"]." - Author: ".$thr_parent['author-id']." - Owner: ".$thr_parent['owner-id'], LOGGER_DEBUG);
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// Send a salmon to the parent author
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$probed_contact = dba::selectFirst('contact', ['url', 'notify'], ['id' => $thr_parent['author-id']]);
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if (DBM::is_result($probed_contact) && !empty($probed_contact["notify"])) {
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logger('Notify parent author '.$probed_contact["url"].': '.$probed_contact["notify"]);
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$url_recipients[$probed_contact["notify"]] = $probed_contact["notify"];
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}
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// Send a salmon to the parent owner
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$probed_contact = dba::selectFirst('contact', ['url', 'notify'], ['id' => $thr_parent['owner-id']]);
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if (DBM::is_result($probed_contact) && !empty($probed_contact["notify"])) {
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logger('Notify parent owner '.$probed_contact["url"].': '.$probed_contact["notify"]);
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$url_recipients[$probed_contact["notify"]] = $probed_contact["notify"];
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}
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// Send a salmon notification to every person we mentioned in the post
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$arr = explode(',',$target_item['tag']);
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foreach ($arr as $x) {
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//logger('Checking tag '.$x, LOGGER_DEBUG);
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$matches = null;
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if (preg_match('/@\[url=([^\]]*)\]/',$x,$matches)) {
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$probed_contact = Probe::uri($matches[1]);
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if ($probed_contact["notify"] != "") {
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logger('Notify mentioned user '.$probed_contact["url"].': '.$probed_contact["notify"]);
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$url_recipients[$probed_contact["notify"]] = $probed_contact["notify"];
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}
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}
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}
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// It only makes sense to distribute answers to OStatus messages to Friendica and OStatus - but not Diaspora
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$networks = [NETWORK_OSTATUS, NETWORK_DFRN];
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} else {
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$networks = [NETWORK_OSTATUS, NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_MAIL];
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}
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} else {
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$public_message = false;
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}
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// If this is a public message and pubmail is set on the parent, include all your email contacts
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if (function_exists('imap_open') && !Config::get('system','imap_disabled')) {
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if (!strlen($target_item['allow_cid']) && !strlen($target_item['allow_gid'])
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&& !strlen($target_item['deny_cid']) && !strlen($target_item['deny_gid'])
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&& intval($target_item['pubmail'])) {
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$r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `network` = '%s'",
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intval($uid),
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dbesc(NETWORK_MAIL)
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);
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if (DBM::is_result($r)) {
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foreach ($r as $rr) {
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$recipients[] = $rr['id'];
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}
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}
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}
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}
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if (($cmd == Delivery::RELOCATION)) {
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$r = $recipients_relocate;
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} else {
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if ($followup) {
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$recipients = $recipients_followup;
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}
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$condition = ['id' => $recipients, 'self' => false,
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'blocked' => false, 'pending' => false, 'archive' => false];
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if (!empty($networks)) {
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$condition['network'] = $networks;
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}
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$contacts = dba::select('contact', ['id', 'url', 'network'], $condition);
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$r = dba::inArray($contacts);
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}
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// delivery loop
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if (DBM::is_result($r)) {
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foreach ($r as $contact) {
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logger("Deliver ".$target_item["guid"]." to ".$contact['url']." via network ".$contact['network'], LOGGER_DEBUG);
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Worker::add(['priority' => $a->queue['priority'], 'created' => $a->queue['created'], 'dont_fork' => true],
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'Delivery', $cmd, $item_id, (int)$contact['id']);
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}
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}
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// send salmon slaps to mentioned remote tags (@foo@example.com) in OStatus posts
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// They are especially used for notifications to OStatus users that don't follow us.
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if (!Config::get('system', 'dfrn_only') && count($url_recipients) && ($public_message || $push_notify) && $normal_mode) {
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$slap = OStatus::salmon($target_item, $owner);
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foreach ($url_recipients as $url) {
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if ($url) {
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logger('notifier: urldelivery: ' . $url);
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$deliver_status = Salmon::slapper($owner, $url, $slap);
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/// @TODO Redeliver/queue these items on failure, though there is no contact record
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}
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}
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}
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if ($public_message) {
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$r1 = [];
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if ($diaspora_delivery) {
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$r1 = q("SELECT `batch`, ANY_VALUE(`id`) AS `id`, ANY_VALUE(`name`) AS `name`, ANY_VALUE(`network`) AS `network`
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FROM `contact` WHERE `network` = '%s' AND `batch` != ''
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AND `uid` = %d AND `rel` != %d AND NOT `blocked` AND NOT `pending` AND NOT `archive` GROUP BY `batch`",
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dbesc(NETWORK_DIASPORA),
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intval($owner['uid']),
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intval(CONTACT_IS_SHARING)
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);
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// Fetch the participation list
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// The function will ensure that there are no duplicates
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$r1 = Diaspora::participantsForThread($item_id, $r1);
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// Add the relay to the list, avoid duplicates
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if (!$followup) {
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$r1 = Diaspora::relayList($item_id, $r1);
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}
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}
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$condition = ['network' => NETWORK_DFRN, 'uid' => $owner['uid'], 'blocked' => false,
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'pending' => false, 'archive' => false, 'rel' => [CONTACT_IS_FOLLOWER, CONTACT_IS_FRIEND]];
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$r2 = dba::inArray(dba::select('contact', ['id', 'name', 'network'], $condition));
|
|
|
|
$r = array_merge($r2, $r1);
|
|
|
|
if (DBM::is_result($r)) {
|
|
logger('pubdeliver '.$target_item["guid"].': '.print_r($r,true), LOGGER_DEBUG);
|
|
|
|
foreach ($r as $rr) {
|
|
// except for Diaspora batch jobs
|
|
// Don't deliver to folks who have already been delivered to
|
|
|
|
if (($rr['network'] !== NETWORK_DIASPORA) && (in_array($rr['id'], $conversants))) {
|
|
logger('notifier: already delivered id=' . $rr['id']);
|
|
continue;
|
|
}
|
|
|
|
if (!in_array($cmd, [Delivery::MAIL, Delivery::SUGGESTION]) && !$followup) {
|
|
logger('notifier: delivery agent: '.$rr['name'].' '.$rr['id'].' '.$rr['network'].' '.$target_item["guid"]);
|
|
Worker::add(['priority' => $a->queue['priority'], 'created' => $a->queue['created'], 'dont_fork' => true],
|
|
'Delivery', $cmd, $item_id, (int)$rr['id']);
|
|
}
|
|
}
|
|
}
|
|
|
|
$push_notify = true;
|
|
}
|
|
|
|
// Notify PuSH subscribers (Used for OStatus distribution of regular posts)
|
|
if ($push_notify) {
|
|
logger('Activating internal PuSH for item '.$item_id, LOGGER_DEBUG);
|
|
|
|
// Handling the pubsubhubbub requests
|
|
PushSubscriber::publishFeed($owner['uid'], $a->queue['priority']);
|
|
}
|
|
|
|
logger('notifier: calling hooks for ' . $cmd . ' ' . $item_id, LOGGER_DEBUG);
|
|
|
|
if ($normal_mode) {
|
|
Addon::forkHooks($a->queue['priority'], 'notifier_normal', $target_item);
|
|
}
|
|
|
|
Addon::callHooks('notifier_end',$target_item);
|
|
|
|
return;
|
|
}
|
|
}
|