-<?php
-
-use Friendica\App;
-use Friendica\Core\Config;
-
-require_once 'include/queue_fn.php';
-require_once 'include/html2plain.php';
-require_once 'include/probe.php';
-require_once 'include/diaspora.php';
-require_once 'include/ostatus.php';
-require_once 'include/salmon.php';
-
-/*
- * This file was at one time responsible for doing all deliveries, but this caused
- * big problems when the process was killed or stalled during the delivery process.
- * It now invokes separate queues that are delivering via delivery.php and pubsubpublish.php.
- */
-
-/*
- * The notifier is typically called with:
- *
- * proc_run(PRIORITY_HIGH, "include/notifier.php", COMMAND, ITEM_ID);
- *
- * where COMMAND is one of the following:
- *
- * activity (in diaspora.php, dfrn_confirm.php, profiles.php)
- * comment-import (in diaspora.php, items.php)
- * comment-new (in item.php)
- * drop (in diaspora.php, items.php, photos.php)
- * edit_post (in item.php)
- * event (in events.php)
- * expire (in items.php)
- * like (in like.php, poke.php)
- * mail (in message.php)
- * suggest (in fsuggest.php)
- * tag (in photos.php, poke.php, tagger.php)
- * tgroup (in items.php)
- * wall-new (in photos.php, item.php)
- * removeme (in Contact.php)
- * relocate (in uimport.php)
- *
- * and ITEM_ID is the id of the item in the database that needs to be sent to others.
- */
-
-
-function notifier_run(&$argv, &$argc){
- global $a;
-
- require_once 'include/datetime.php';
- require_once 'include/items.php';
- require_once 'include/bbcode.php';
- require_once 'include/email.php';
-
- if ($argc < 3) {
- return;
- }
-
- // Inherit the priority
- $queue = dba::select('workerqueue', array('priority'), array('pid' => getmypid()), array('limit' => 1));
- if (dbm::is_result($queue)) {
- $priority = (int)$queue['priority'];
- logger('inherited priority: '.$priority);
- } else {
- // Normally this shouldn't happen.
- $priority = PRIORITY_HIGH;
- logger('no inherited priority! Something is wrong.');
- }
-
- logger('notifier: invoked: ' . print_r($argv,true), LOGGER_DEBUG);
-
- $cmd = $argv[1];
-
- switch($cmd) {
- case 'mail':
- default:
- $item_id = intval($argv[2]);
- if (! $item_id) {
- return;
- }
- break;
- }
-
- $expire = false;
- $mail = false;
- $fsuggest = false;
- $relocate = false;
- $top_level = false;
- $recipients = array();
- $url_recipients = array();
-
- $normal_mode = true;
-
- if ($cmd === 'mail') {
- $normal_mode = false;
- $mail = true;
- $message = q("SELECT * FROM `mail` WHERE `id` = %d LIMIT 1",
- intval($item_id)
- );
- if (! count($message)) {
- return;
- }
- $uid = $message[0]['uid'];
- $recipients[] = $message[0]['contact-id'];
- $item = $message[0];
-
- } elseif ($cmd === 'expire') {
- $normal_mode = false;
- $expire = true;
- $items = q("SELECT * FROM `item` WHERE `uid` = %d AND `wall` = 1
- AND `deleted` = 1 AND `changed` > UTC_TIMESTAMP() - INTERVAL 10 MINUTE",
- intval($item_id)
- );
- $uid = $item_id;
- $item_id = 0;
- if (! count($items)) {
- return;
- }
- } elseif ($cmd === 'suggest') {
- $normal_mode = false;
- $fsuggest = true;
-
- $suggest = q("SELECT * FROM `fsuggest` WHERE `id` = %d LIMIT 1",
- intval($item_id)
- );
- if (! count($suggest)) {
- return;
- }
- $uid = $suggest[0]['uid'];
- $recipients[] = $suggest[0]['cid'];
- $item = $suggest[0];
- } elseif ($cmd === 'removeme') {
- $r = q("SELECT `contact`.*, `user`.`pubkey` AS `upubkey`, `user`.`prvkey` AS `uprvkey`,
- `user`.`timezone`, `user`.`nickname`, `user`.`sprvkey`, `user`.`spubkey`,
- `user`.`page-flags`, `user`.`prvnets`, `user`.`account-type`, `user`.`guid`
- FROM `contact` INNER JOIN `user` ON `user`.`uid` = `contact`.`uid`
- WHERE `contact`.`uid` = %d AND `contact`.`self` LIMIT 1",
- intval($item_id));
- if (!$r)
- return;
-
- $user = $r[0];
-
- $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` LIMIT 1", intval($item_id));
- if (!$r)
- return;
-
- $self = $r[0];
-
- $r = q("SELECT * FROM `contact` WHERE NOT `self` AND `uid` = %d", intval($item_id));
- if (!$r) {
- return;
- }
- require_once 'include/Contact.php';
- foreach ($r as $contact) {
- terminate_friendship($user, $self, $contact);
- }
- return;
- } elseif ($cmd === 'relocate') {
- $normal_mode = false;
- $relocate = true;
- $uid = $item_id;
-
- $recipients_relocate = q("SELECT * FROM contact WHERE uid = %d AND self = 0 AND network = '%s'" , intval($uid), NETWORK_DFRN);
- } else {
- // find ancestors
- $r = q("SELECT * FROM `item` WHERE `id` = %d and visible = 1 and moderated = 0 LIMIT 1",
- intval($item_id)
- );
-
- if ((! dbm::is_result($r)) || (! intval($r[0]['parent']))) {
- return;
- }
-
- $target_item = $r[0];
- $parent_id = intval($r[0]['parent']);
- $uid = $r[0]['uid'];
- $updated = $r[0]['edited'];
-
- $items = q("SELECT `item`.*, `sign`.`signed_text`,`sign`.`signature`,`sign`.`signer`
- FROM `item` LEFT JOIN `sign` ON `sign`.`iid` = `item`.`id` WHERE `parent` = %d and visible = 1 and moderated = 0 ORDER BY `id` ASC",
- intval($parent_id)
- );
-
- if (! count($items)) {
- return;
- }
-
- // avoid race condition with deleting entries
-
- if ($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'])) {
- logger('notifier: top level post');
- $top_level = true;
- }
-
- }
-
- $r = q("SELECT `contact`.*, `user`.`pubkey` AS `upubkey`, `user`.`prvkey` AS `uprvkey`,
- `user`.`timezone`, `user`.`nickname`, `user`.`sprvkey`, `user`.`spubkey`,
- `user`.`page-flags`, `user`.`prvnets`, `user`.`account-type`
- FROM `contact` INNER JOIN `user` ON `user`.`uid` = `contact`.`uid`
- WHERE `contact`.`uid` = %d AND `contact`.`self` = 1 LIMIT 1",
- intval($uid)
- );
-
- if (! dbm::is_result($r)) {
- return;
- }
-
- $owner = $r[0];
-
- $walltowall = ((($top_level) && ($owner['id'] != $items[0]['contact-id'])) ? true : false);
-
- $hub = get_config('system','huburl');
-
- // 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;
-
- // fill this in with a single salmon slap if applicable
- $slap = '';
-
- if (! ($mail || $fsuggest || $relocate)) {
-
- $slap = ostatus::salmon($target_item,$owner);
-
- require_once 'include/group.php';
-
- $parent = $items[0];
-
- $thr_parent = q("SELECT `network`, `author-link`, `owner-link` FROM `item` WHERE `uri` = '%s' AND `uid` = %d",
- dbesc($target_item["thr-parent"]), intval($target_item["uid"]));
-
- logger('GUID: '.$target_item["guid"].': Parent is '.$parent['network'].'. Thread parent is '.$thr_parent[0]['network'], LOGGER_DEBUG);
-
- // 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.
-
- // expire sends an entire group of expire messages and cannot be forwarded.
- // However the conversation owner will be a part of the conversation and will
- // be notified during this run.
- // Other DFRN conversation members will be alerted during polled updates.
-
-
-
- // Diaspora members currently are not notified of expirations, and other networks have
- // either limited or no ability to process deletions. We should at least fix Diaspora
- // by stringing togther an array of retractions and sending them onward.
-
-
- $localhost = str_replace('www.','',$a->get_hostname());
- 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 && ($parent['wall'] == 0) && !$expire && (stristr($target_item['uri'],$localhost))) {
- $relay_to_owner = true;
- }
-
-
- if (($cmd === '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']) {
- $relay_to_owner = false;
- }
- if ($relay_to_owner) {
- logger('notifier: followup '.$target_item["guid"], LOGGER_DEBUG);
- // local followup to remote post
- $followup = true;
- $public_message = false; // not public
- $conversant_str = dbesc($parent['contact-id']);
- $recipients = array($parent['contact-id']);
- $recipients_followup = array($parent['contact-id']);
-
- //if (!$target_item['private'] AND $target_item['wall'] AND
- if (!$target_item['private'] AND
- (strlen($target_item['allow_cid'].$target_item['allow_gid'].
- $target_item['deny_cid'].$target_item['deny_gid']) == 0))
- $push_notify = true;
-
- if (($thr_parent AND ($thr_parent[0]['network'] == NETWORK_OSTATUS)) OR ($parent['network'] == NETWORK_OSTATUS)) {
-
- $push_notify = true;
-
- if ($parent["network"] == NETWORK_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
- $r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `network` = '%s' AND NOT `blocked` AND NOT `pending` AND NOT `archive`",
- intval($uid),
- dbesc(NETWORK_DFRN)
- );
- if (dbm::is_result($r)) {
- foreach ($r as $rr) {
- $recipients_followup[] = $rr['id'];
- }
- }
- }
- }
- logger("Notify ".$target_item["guid"]." via PuSH: ".($push_notify?"Yes":"No"), LOGGER_DEBUG);
- } else {
- $followup = false;
-
- logger('Distributing directly '.$target_item["guid"], LOGGER_DEBUG);
-
- // don't send deletions onward for other people's stuff
-
- if ($target_item['deleted'] && (! intval($target_item['wall']))) {
- logger('notifier: 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']);
- $allow_groups = expand_groups(expand_acl($parent['allow_gid']),true);
- $deny_people = expand_acl($parent['deny_cid']);
- $deny_groups = expand_groups(expand_acl($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 !== 'uplink')) {
- proc_run($priority, 'include/notifier.php', 'uplink', $item_id);
- }
-
- $conversants = array();
-
- foreach ($items as $item) {
- $recipients[] = $item['contact-id'];
- $conversants[] = $item['contact-id'];
- // pull out additional tagged people to notify (if public message)
- if ($public_message && strlen($item['inform'])) {
- $people = explode(',',$item['inform']);
- foreach ($people as $person) {
- if (substr($person,0,4) === 'cid:') {
- $recipients[] = intval(substr($person,4));
- $conversants[] = intval(substr($person,4));
- } else {
- $url_recipients[] = substr($person,4);
- }
- }
- }
- }
-
- if (count($url_recipients))
- logger('notifier: '.$target_item["guid"].' url_recipients ' . print_r($url_recipients,true));
-
- $conversants = array_unique($conversants);
-
-
- $recipients = array_unique(array_merge($recipients,$allow_people,$allow_groups));
- $deny = array_unique(array_merge($deny_people,$deny_groups));
- $recipients = array_diff($recipients,$deny);
-
- $conversant_str = dbesc(implode(', ',$conversants));
- }
-
- // 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 (($thr_parent AND ($thr_parent[0]['network'] == NETWORK_OSTATUS)) OR ($parent['network'] == NETWORK_OSTATUS)) {
-
- $diaspora_delivery = false;
-
- logger('Some parent is OStatus for '.$target_item["guid"]." - Author: ".$thr_parent[0]['author-link']." - Owner: ".$thr_parent[0]['owner-link'], LOGGER_DEBUG);
-
- // Send a salmon to the parent author
- $r = q("SELECT `url`, `notify` FROM `contact` WHERE `nurl`='%s' AND `uid` IN (0, %d) AND `notify` != ''",
- dbesc(normalise_link($thr_parent[0]['author-link'])),
- intval($uid));
- if (dbm::is_result($r)) {
- $probed_contact = $r[0];
- } else {
- $probed_contact = probe_url($thr_parent[0]['author-link']);
- }
-
- if ($probed_contact["notify"] != "") {
- logger('Notify parent author '.$probed_contact["url"].': '.$probed_contact["notify"]);
- $url_recipients[$probed_contact["notify"]] = $probed_contact["notify"];
- }
-
- // Send a salmon to the parent owner
- $r = q("SELECT `url`, `notify` FROM `contact` WHERE `nurl`='%s' AND `uid` IN (0, %d) AND `notify` != ''",
- dbesc(normalise_link($thr_parent[0]['owner-link'])),
- intval($uid));
- if (dbm::is_result($r)) {
- $probed_contact = $r[0];
- } else {
- $probed_contact = probe_url($thr_parent[0]['owner-link']);
- }
-
- if ($probed_contact["notify"] != "") {
- logger('Notify parent owner '.$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 $x) {
- //logger('Checking tag '.$x, LOGGER_DEBUG);
- $matches = null;
- if (preg_match('/@\[url=([^\]]*)\]/',$x,$matches)) {
- $probed_contact = probe_url($matches[1]);
- if ($probed_contact["notify"] != "") {
- logger('Notify mentioned user '.$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
- $sql_extra = " AND `network` IN ('".NETWORK_OSTATUS."', '".NETWORK_DFRN."')";
- } else {
- $sql_extra = " AND `network` IN ('".NETWORK_OSTATUS."', '".NETWORK_DFRN."', '".NETWORK_DIASPORA."', '".NETWORK_MAIL."', '".NETWORK_MAIL2."')";
- }
- } else {
- $public_message = false;
- }
-
- // If this is a public message and pubmail is set on the parent, include all your email contacts
-
- $mail_disabled = ((function_exists('imap_open') && (! get_config('system','imap_disabled'))) ? 0 : 1);
-
- if (! $mail_disabled) {
- if ((! strlen($target_item['allow_cid'])) && (! strlen($target_item['allow_gid']))
- && (! strlen($target_item['deny_cid'])) && (! strlen($target_item['deny_gid']))
- && (intval($target_item['pubmail']))) {
- $r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `network` = '%s'",
- intval($uid),
- dbesc(NETWORK_MAIL)
- );
- if (dbm::is_result($r)) {
- foreach ($r as $rr) {
- $recipients[] = $rr['id'];
- }
- }
- }
- }
-
- if ($followup) {
- $recip_str = implode(', ', $recipients_followup);
- } else {
- $recip_str = implode(', ', $recipients);
- }
- if ($relocate) {
- $r = $recipients_relocate;
- } else {
- $r = q("SELECT `id`, `url`, `network`, `self` FROM `contact`
- WHERE `id` IN (%s) AND NOT `blocked` AND NOT `pending` AND NOT `archive`".$sql_extra,
- dbesc($recip_str)
- );
- }
-
- // delivery loop
-
- if (dbm::is_result($r)) {
- foreach ($r as $contact) {
- if ($contact['self']) {
- continue;
- }
- logger("Deliver ".$target_item["guid"]." to ".$contact['url']." via network ".$contact['network'], LOGGER_DEBUG);
-
- proc_run(array('priority' => $priority, 'dont_fork' => true), 'include/delivery.php', $cmd, $item_id, $contact['id']);
- }
- }
-
- // send salmon slaps to mentioned remote tags (@foo@example.com) in OStatus posts
- // They are especially used for notifications to OStatus users that don't follow us.
-
- if ($slap && count($url_recipients) && ($public_message || $push_notify) && $normal_mode) {
- if (!get_config('system','dfrn_only')) {
- foreach ($url_recipients as $url) {
- if ($url) {
- logger('notifier: urldelivery: ' . $url);
- $deliver_status = slapper($owner,$url,$slap);
- /// @TODO Redeliver/queue these items on failure, though there is no contact record
- }
- }
- }
- }
-
-
- if ($public_message) {
-
- $r0 = array();
- $r1 = array();
-
- if ($diaspora_delivery) {
- if (!$followup) {
- $r0 = Diaspora::relay_list();
- }
-
- $r1 = q("SELECT `batch`, ANY_VALUE(`id`) AS `id`, ANY_VALUE(`name`) AS `name`, ANY_VALUE(`network`) AS `network`
- FROM `contact` WHERE `network` = '%s'
- AND `uid` = %d AND `rel` != %d AND NOT `blocked` AND NOT `pending` AND NOT `archive` GROUP BY `batch` ORDER BY rand()",
- dbesc(NETWORK_DIASPORA),
- intval($owner['uid']),
- intval(CONTACT_IS_SHARING)
- );
- }
-
- $r2 = q("SELECT `id`, `name`,`network` FROM `contact`
- WHERE `network` in ( '%s', '%s') AND `uid` = %d AND NOT `blocked` AND NOT `pending` AND NOT `archive`
- AND `rel` != %d order by rand() ",
- dbesc(NETWORK_DFRN),
- dbesc(NETWORK_MAIL2),
- intval($owner['uid']),
- intval(CONTACT_IS_SHARING)
- );
-
- $r = array_merge($r2,$r1,$r0);
-
- 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 ((! $mail) && (! $fsuggest) && (! $followup)) {
- logger('notifier: delivery agent: '.$rr['name'].' '.$rr['id'].' '.$rr['network'].' '.$target_item["guid"]);
- proc_run(array('priority' => $priority, 'dont_fork' => true), 'include/delivery.php', $cmd, $item_id, $rr['id']);
- }
- }
- }
-
- $push_notify = true;
-
- }
-
- // Notify PuSH subscribers (Used for OStatus distribution of regular posts)
- if ($push_notify AND strlen($hub)) {
- $hubs = explode(',', $hub);
- if (count($hubs)) {
- foreach ($hubs as $h) {
- $h = trim($h);
- if (! strlen($h)) {
- continue;
- }
-
- if ($h === '[internal]') {
- // Set push flag for PuSH subscribers to this topic,
- // they will be notified in queue.php
- q("UPDATE `push_subscriber` SET `push` = 1 ".
- "WHERE `nickname` = '%s' AND `push` = 0", dbesc($owner['nickname']));
-
- logger('Activating internal PuSH for item '.$item_id, LOGGER_DEBUG);
-
- } else {
-
- $params = 'hub.mode=publish&hub.url=' . urlencode( App::get_baseurl() . '/dfrn_poll/' . $owner['nickname'] );
- post_url($h,$params);
- logger('publish for item '.$item_id.' ' . $h . ' ' . $params . ' returned ' . $a->get_curl_code());
- }
- if (count($hubs) > 1) {
- sleep(7); // try and avoid multiple hubs responding at precisely the same time
- }
- }
- }
-
- // Handling the pubsubhubbub requests
- proc_run(array('priority' => PRIORITY_HIGH, 'dont_fork' => true), 'include/pubsubpublish.php');
- }
-
- logger('notifier: calling hooks', LOGGER_DEBUG);
-
- if ($normal_mode) {
- call_hooks('notifier_normal',$target_item);
- }
-
- call_hooks('notifier_end',$target_item);
-
- return;
-}