<?php require_once("boot.php"); require_once('include/queue_fn.php'); require_once('include/html2plain.php'); require_once("include/Scrape.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, $db; if(is_null($a)){ $a = new App; } if(is_null($db)) { @include(".htconfig.php"); require_once("include/dba.php"); $db = new dba($db_host, $db_user, $db_pass, $db_data); unset($db_host, $db_user, $db_pass, $db_data); } require_once("include/session.php"); require_once("include/datetime.php"); require_once('include/items.php'); require_once('include/bbcode.php'); require_once('include/email.php'); load_config('config'); load_config('system'); load_hooks(); if($argc < 3) return; $a->set_baseurl(get_config('system','url')); logger('notifier: invoked: ' . print_r($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((! count($r)) || (! intval($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(! count($r)) return; $owner = $r[0]; $walltowall = ((($top_level) && ($owner['id'] != $items[0]['contact-id'])) ? true : false); $hub = get_config('system','huburl'); // 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($target_item["uid"])); logger('Parent is '.$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(count($r)) foreach($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_HIGH,'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 ($parent['network'] == NETWORK_OSTATUS)) { logger('Some parent is OStatus for '.$target_item["guid"]." - Author: ".$thr_parent[0]['author-link']." - Owner: ".$thr_parent[0]['owner-link'], LOGGER_DEBUG); // Send a salmon to the parent author $r = q("SELECT `notify` FROM `contact` WHERE `nurl`='%s' AND `uid` IN (0, %d) AND `notify` != ''", dbesc(normalise_link($thr_parent[0]['author-link'])), intval($uid)); if ($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 $r = q("SELECT `notify` FROM `contact` WHERE `nurl`='%s' AND `uid` IN (0, %d) AND `notify` != ''", dbesc(normalise_link($thr_parent[0]['owner-link'])), intval($uid)); if ($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."')"; $r = q("SELECT * FROM `contact` WHERE `id` IN ($conversant_str) AND NOT `blocked` AND NOT `pending` AND NOT `archive`".$sql_extra); if(count($r)) $contacts = $r; } 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(count($r)) { foreach($r as $rr) $recipients[] = $rr['id']; } } } if($followup) $recip_str = implode(', ', $recipients_followup); else $recip_str = implode(', ', $recipients); if ($relocate) $r = $recipients_relocate; else $r = q("SELECT * FROM `contact` WHERE `id` IN (%s) AND NOT `blocked` AND NOT `pending` AND NOT `archive`", dbesc($recip_str) ); $interval = ((get_config('system','delivery_interval') === false) ? 2 : intval(get_config('system','delivery_interval'))); // If we are using the worker we don't need a delivery interval if (get_config("system", "worker")) $interval = false; // delivery loop if(count($r)) { foreach($r as $contact) { if(!$contact['self']) { if(($contact['network'] === NETWORK_DIASPORA) && ($public_message)) continue; q("INSERT INTO `deliverq` (`cmd`,`item`,`contact`) VALUES ('%s', %d, %d)", dbesc($cmd), intval($item_id), intval($contact['id']) ); } } // This controls the number of deliveries to execute with each separate delivery process. // By default we'll perform one delivery per process. Assuming a hostile shared hosting // provider, this provides the greatest chance of deliveries if processes start getting // killed. We can also space them out with the delivery_interval to also help avoid them // getting whacked. // If $deliveries_per_process > 1, we will chain this number of multiple deliveries // together into a single process. This will reduce the overall number of processes // spawned for each delivery, but they will run longer. // When using the workerqueue, we don't need this functionality. $deliveries_per_process = intval(get_config('system','delivery_batch_count')); if (($deliveries_per_process <= 0) OR get_config("system", "worker")) $deliveries_per_process = 1; $this_batch = array(); for($x = 0; $x < count($r); $x ++) { $contact = $r[$x]; if($contact['self']) continue; logger("Deliver ".$target_item["guid"]." to ".$contact['url']." via network ".$contact['network'], LOGGER_DEBUG); // potentially more than one recipient. Start a new process and space them out a bit. // we will deliver single recipient types of message and email recipients here. $this_batch[] = $contact['id']; if(count($this_batch) >= $deliveries_per_process) { proc_run(PRIORITY_HIGH,'include/delivery.php',$cmd,$item_id,$this_batch); $this_batch = array(); if($interval) @time_sleep_until(microtime(true) + (float) $interval); } continue; } // be sure to pick up any stragglers if(count($this_batch)) proc_run(PRIORITY_HIGH,'include/delivery.php',$cmd,$item_id,$this_batch); } // send salmon slaps to mentioned remote tags (@foo@example.com) in OStatus posts // They are especially used for notifications to OStatus users that don't follow us. if($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($public_message) { if (!$followup) $r0 = diaspora::relay_list(); else $r0 = array(); $r1 = q("SELECT DISTINCT(`batch`), `id`, `name`,`network` FROM `contact` WHERE `network` = '%s' AND `uid` = %d AND `rel` != %d group by `batch` ORDER BY rand() ", dbesc(NETWORK_DIASPORA), intval($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(count($r)) { logger('pubdeliver '.$target_item["guid"].': '.print_r($r,true), LOGGER_DEBUG); // throw everything into the queue in case we get killed foreach($r as $rr) { if((! $mail) && (! $fsuggest) && (! $followup)) { q("insert into deliverq ( `cmd`,`item`,`contact` ) values ('%s', %d, %d )", dbesc($cmd), intval($item_id), intval($rr['id']) ); } } 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'].' '.$target_item["guid"]); proc_run(PRIORITY_HIGH,'include/delivery.php',$cmd,$item_id,$rr['id']); if($interval) @time_sleep_until(microtime(true) + (float) $interval); } } } $push_notify = true; } // Notify PuSH subscribers (Used for OStatus distribution of regular posts) if($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( $a->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(PRIORITY_HIGH,'include/pubsubpublish.php'); } logger('notifier: calling hooks', LOGGER_DEBUG); if($normal_mode) call_hooks('notifier_normal',$target_item); call_hooks('notifier_end',$target_item); return; } if (array_search(__file__,get_included_files())===0){ notifier_run($_SERVER["argv"],$_SERVER["argc"]); killme(); }