function notifier_run($argv, $argc)
{
cli_startup();
$a = get_app();
if ($argc < 3) {
return;
}
logger('notifier: invoked: ' . print_r($argv, true), LOGGER_DEBUG);
$cmd = $argv[1];
$item_id = $argv[2];
$extra = $argc > 3 ? $argv[3] : null;
if (!$item_id) {
return;
}
$sys = get_sys_channel();
$deliveries = array();
$dead_hubs = array();
$dh = q("select site_url from site where site_dead = 1");
if ($dh) {
foreach ($dh as $dead) {
$dead_hubs[] = $dead['site_url'];
}
}
$request = false;
$mail = false;
$top_level = false;
$location = false;
$recipients = array();
$url_recipients = array();
$normal_mode = true;
$packet_type = 'undefined';
if ($cmd === 'mail') {
$normal_mode = false;
$mail = true;
$private = true;
$message = q("SELECT * FROM `mail` WHERE `id` = %d LIMIT 1", intval($item_id));
if (!$message) {
return;
}
xchan_mail_query($message[0]);
$uid = $message[0]['channel_id'];
$recipients[] = $message[0]['from_xchan'];
// include clones
$recipients[] = $message[0]['to_xchan'];
$item = $message[0];
$encoded_item = encode_mail($item);
$s = q("select * from channel where channel_id = %d limit 1", intval($item['channel_id']));
if ($s) {
$channel = $s[0];
}
} elseif ($cmd === 'request') {
$channel_id = $item_id;
$xchan = $argv[3];
$request_message_id = $argv[4];
$s = q("select * from channel where channel_id = %d limit 1", intval($channel_id));
if ($s) {
$channel = $s[0];
}
$private = true;
$recipients[] = $xchan;
$packet_type = 'request';
$normal_mode = false;
} elseif ($cmd == 'permission_update' || $cmd == 'permission_create') {
// Get the (single) recipient
$r = q("select * from abook left join xchan on abook_xchan = xchan_hash where abook_id = %d and abook_self = 0", intval($item_id));
if ($r) {
$uid = $r[0]['abook_channel'];
// Get the sender
$channel = channelx_by_n($uid);
if ($channel) {
$perm_update = array('sender' => $channel, 'recipient' => $r[0], 'success' => false, 'deliveries' => '');
if ($cmd == 'permission_create') {
call_hooks('permissions_create', $perm_update);
} else {
call_hooks('permissions_update', $perm_update);
}
if ($perm_update['success']) {
if ($perm_update['deliveries']) {
$deliveries[] = $perm_update['deliveries'];
do_delivery($deliveries);
}
return;
} else {
$recipients[] = $r[0]['abook_xchan'];
$private = false;
$packet_type = 'refresh';
$packet_recips = array(array('guid' => $r[0]['xchan_guid'], 'guid_sig' => $r[0]['xchan_guid_sig'], 'hash' => $r[0]['xchan_hash']));
}
}
}
} elseif ($cmd === 'refresh_all') {
logger('notifier: refresh_all: ' . $item_id);
$uid = $item_id;
$channel = channelx_by_n($item_id);
$r = q("select abook_xchan from abook where abook_channel = %d", intval($item_id));
if ($r) {
foreach ($r as $rr) {
$recipients[] = $rr['abook_xchan'];
}
}
$private = false;
$packet_type = 'refresh';
} elseif ($cmd === 'location') {
logger('notifier: location: ' . $item_id);
$s = q("select * from channel where channel_id = %d limit 1", intval($item_id));
if ($s) {
$channel = $s[0];
}
$uid = $item_id;
$recipients = array();
$r = q("select abook_xchan from abook where abook_channel = %d", intval($item_id));
if ($r) {
foreach ($r as $rr) {
$recipients[] = $rr['abook_xchan'];
}
}
$encoded_item = array('locations' => zot_encode_locations($channel), 'type' => 'location', 'encoding' => 'zot');
$target_item = array('aid' => $channel['channel_account_id'], 'uid' => $channel['channel_id']);
$private = false;
$packet_type = 'location';
$location = true;
} elseif ($cmd === 'purge_all') {
logger('notifier: purge_all: ' . $item_id);
$s = q("select * from channel where channel_id = %d limit 1", intval($item_id));
if ($s) {
$channel = $s[0];
}
$uid = $item_id;
$recipients = array();
$r = q("select abook_xchan from abook where abook_channel = %d", intval($item_id));
if ($r) {
foreach ($r as $rr) {
$recipients[] = $rr['abook_xchan'];
}
}
$private = false;
$packet_type = 'purge';
} else {
// Normal items
// Fetch the target item
$r = q("SELECT * FROM item WHERE id = %d and parent != 0 LIMIT 1", intval($item_id));
if (!$r) {
return;
}
xchan_query($r);
$r = fetch_post_tags($r);
$target_item = $r[0];
$deleted_item = false;
if (intval($target_item['item_deleted'])) {
logger('notifier: target item ITEM_DELETED', LOGGER_DEBUG);
$deleted_item = true;
}
if (intval($target_item['item_type']) != ITEM_TYPE_POST) {
logger('notifier: target item not forwardable: type ' . $target_item['item_type'], LOGGER_DEBUG);
return;
}
if (intval($target_item['item_unpublished']) || intval($target_item['item_delayed'])) {
logger('notifier: target item not published, so not forwardable', LOGGER_DEBUG);
return;
}
if (strpos($target_item['postopts'], 'nodeliver') !== false) {
logger('notifier: target item is undeliverable', LOGGER_DEBUG);
return;
}
$s = q("select * from channel left join xchan on channel_hash = xchan_hash where channel_id = %d limit 1", intval($target_item['uid']));
if ($s) {
$channel = $s[0];
}
if ($channel['channel_hash'] !== $target_item['author_xchan'] && $channel['channel_hash'] !== $target_item['owner_xchan']) {
logger("notifier: Sending channel {$channel['channel_hash']} is not owner {$target_item['owner_xchan']} or author {$target_item['author_xchan']}", LOGGER_NORMAL, LOG_WARNING);
return;
}
if ($target_item['id'] == $target_item['parent']) {
$parent_item = $target_item;
$top_level_post = true;
} else {
// fetch the parent item
$r = q("SELECT * from item where id = %d order by id asc", intval($target_item['parent']));
if (!$r) {
return;
}
if (strpos($r[0]['postopts'], 'nodeliver') !== false) {
logger('notifier: target item is undeliverable', LOGGER_DEBUG, LOG_NOTICE);
return;
}
xchan_query($r);
$r = fetch_post_tags($r);
$parent_item = $r[0];
$top_level_post = false;
}
// avoid looping of discover items 12/4/2014
if ($sys && $parent_item['uid'] == $sys['channel_id']) {
return;
}
$encoded_item = encode_item($target_item);
// Send comments to the owner to re-deliver to everybody in the conversation
// We only do this if the item in question originated on this site. This prevents looping.
// To clarify, a site accepting a new comment is responsible for sending it to the owner for relay.
// Relaying should never be initiated on a post that arrived from elsewhere.
// We should normally be able to rely on ITEM_ORIGIN, but start_delivery_chain() incorrectly set this
// flag on comments for an extended period. So we'll also call comment_local_origin() which looks at
// the hostname in the message_id and provides a second (fallback) opinion.
$relay_to_owner = !$top_level_post && intval($target_item['item_origin']) && comment_local_origin($target_item) ? true : false;
$uplink = false;
// $cmd === 'relay' indicates the owner is sending it to the original recipients
// don't allow the item in the relay command to relay to owner under any circumstances, it will loop
logger('notifier: relay_to_owner: ' . ($relay_to_owner ? 'true' : 'false'), LOGGER_DATA, LOG_DEBUG);
logger('notifier: top_level_post: ' . ($top_level_post ? 'true' : 'false'), LOGGER_DATA, LOG_DEBUG);
// tag_deliver'd post which needs to be sent back to the original author
if ($cmd === 'uplink' && intval($parent_item['item_uplink']) && !$top_level_post) {
logger('notifier: uplink');
$uplink = true;
}
if (($relay_to_owner || $uplink) && $cmd !== 'relay') {
logger('notifier: followup relay', LOGGER_DEBUG);
$recipients = array($uplink ? $parent_item['source_xchan'] : $parent_item['owner_xchan']);
$private = true;
if (!$encoded_item['flags']) {
$encoded_item['flags'] = array();
}
$encoded_item['flags'][] = 'relay';
} else {
logger('notifier: normal distribution', LOGGER_DEBUG);
if ($cmd === 'relay') {
logger('notifier: owner relay');
}
// if our parent is a tag_delivery recipient, uplink to the original author causing
// a delivery fork.
if ($parent_item && intval($parent_item['item_uplink']) && !$top_level_post && $cmd !== 'uplink') {
// don't uplink a relayed post to the relay owner
if ($parent_item['source_xchan'] !== $parent_item['owner_xchan']) {
logger('notifier: uplinking this item');
proc_run('php', 'include/notifier.php', 'uplink', $item_id);
}
}
$private = false;
$recipients = collect_recipients($parent_item, $private);
// FIXME add any additional recipients such as mentions, etc.
// don't send deletions onward for other people's stuff
// TODO verify this is needed - copied logic from same place in old code
if (intval($target_item['item_deleted']) && !intval($target_item['item_wall'])) {
logger('notifier: ignoring delete notification for non-wall item', LOGGER_NORMAL, LOG_NOTICE);
return;
}
}
}
$walltowall = $top_level_post && $channel['xchan_hash'] === $target_item['author_xchan'] ? true : false;
// Generic delivery section, we have an encoded item and recipients
// Now start the delivery process
$x = $encoded_item;
$x['title'] = 'private';
$x['body'] = 'private';
logger('notifier: encoded item: ' . print_r($x, true), LOGGER_DATA, LOG_DEBUG);
stringify_array_elms($recipients);
if (!$recipients) {
return;
}
// logger('notifier: recipients: ' . print_r($recipients,true), LOGGER_NORMAL, LOG_DEBUG);
$env_recips = $private ? array() : null;
$details = q("select xchan_hash, xchan_instance_url, xchan_network, xchan_addr, xchan_guid, xchan_guid_sig from xchan where xchan_hash in (" . implode(',', $recipients) . ")");
$recip_list = array();
if ($details) {
foreach ($details as $d) {
$recip_list[] = $d['xchan_addr'] . ' (' . $d['xchan_hash'] . ')';
if ($private) {
$env_recips[] = array('guid' => $d['xchan_guid'], 'guid_sig' => $d['xchan_guid_sig'], 'hash' => $d['xchan_hash']);
}
if ($d['xchan_network'] === 'mail' && $normal_mode) {
$delivery_options = get_xconfig($d['xchan_hash'], 'system', 'delivery_mode');
if (!$delivery_options) {
format_and_send_email($channel, $d, $target_item);
}
}
}
}
$narr = array('channel' => $channel, 'env_recips' => $env_recips, 'packet_recips' => $packet_recips, 'recipients' => $recipients, 'item' => $item, 'target_item' => $target_item, 'top_level_post' => $top_level_post, 'private' => $private, 'followup' => $followup, 'relay_to_owner' => $relay_to_owner, 'uplink' => $uplink, 'cmd' => $cmd, 'mail' => $mail, 'location' => $location, 'request' => $request, 'normal_mode' => $normal_mode, 'packet_type' => $packet_type, 'walltowall' => $walltowall, 'queued' => array());
call_hooks('notifier_process', $narr);
if ($narr['queued']) {
foreach ($narr['queued'] as $pq) {
$deliveries[] = $pq;
}
}
if ($private && !$env_recips) {
// shouldn't happen
logger('notifier: private message with no envelope recipients.' . print_r($argv, true), LOGGER_NORMAL, LOG_NOTICE);
}
logger('notifier: recipients (may be delivered to more if public): ' . print_r($recip_list, true), LOGGER_DEBUG);
// Now we have collected recipients (except for external mentions, FIXME)
// Let's reduce this to a set of hubs.
$r = q("select * from hubloc where hubloc_hash in (" . implode(',', $recipients) . ") \n\t\tand hubloc_error = 0 and hubloc_deleted = 0");
if (!$r) {
logger('notifier: no hubs', LOGGER_NORMAL, LOG_NOTICE);
return;
}
$hubs = $r;
/**
* Reduce the hubs to those that are unique. For zot hubs, we need to verify uniqueness by the sitekey, since it may have been
* a re-install which has not yet been detected and pruned.
* For other networks which don't have or require sitekeys, we'll have to use the URL
*/
$hublist = array();
// this provides an easily printable list for the logs
$dhubs = array();
// delivery hubs where we store our resulting unique array
$keys = array();
// array of keys to check uniquness for zot hubs
$urls = array();
// array of urls to check uniqueness of hubs from other networks
foreach ($hubs as $hub) {
if (in_array($hub['hubloc_url'], $dead_hubs)) {
logger('skipping dead hub: ' . $hub['hubloc_url'], LOGGER_DEBUG, LOG_INFO);
continue;
}
if ($hub['hubloc_network'] == 'zot') {
if (!in_array($hub['hubloc_sitekey'], $keys)) {
$hublist[] = $hub['hubloc_host'];
$dhubs[] = $hub;
$keys[] = $hub['hubloc_sitekey'];
}
} else {
if (!in_array($hub['hubloc_url'], $urls)) {
$hublist[] = $hub['hubloc_host'];
$dhubs[] = $hub;
$urls[] = $hub['hubloc_url'];
}
}
}
logger('notifier: will notify/deliver to these hubs: ' . print_r($hublist, true), LOGGER_DEBUG, LOG_DEBUG);
foreach ($dhubs as $hub) {
if ($hub['hubloc_network'] !== 'zot') {
$narr = array('channel' => $channel, 'env_recips' => $env_recips, 'packet_recips' => $packet_recips, 'recipients' => $recipients, 'item' => $item, 'target_item' => $target_item, 'hub' => $hub, 'top_level_post' => $top_level_post, 'private' => $private, 'followup' => $followup, 'relay_to_owner' => $relay_to_owner, 'uplink' => $uplink, 'cmd' => $cmd, 'mail' => $mail, 'location' => $location, 'request' => $request, 'normal_mode' => $normal_mode, 'packet_type' => $packet_type, 'walltowall' => $walltowall, 'queued' => array());
call_hooks('notifier_hub', $narr);
if ($narr['queued']) {
foreach ($narr['queued'] as $pq) {
$deliveries[] = $pq;
}
}
continue;
}
// default: zot protocol
$hash = random_string();
$packet = null;
if ($packet_type === 'refresh' || $packet_type === 'purge') {
$packet = zot_build_packet($channel, $packet_type, $packet_recips ? $packet_recips : null);
} elseif ($packet_type === 'request') {
$packet = zot_build_packet($channel, $packet_type, $env_recips, $hub['hubloc_sitekey'], $hash, array('message_id' => $request_message_id));
}
if ($packet) {
queue_insert(array('hash' => $hash, 'account_id' => $channel['channel_account_id'], 'channel_id' => $channel['channel_id'], 'posturl' => $hub['hubloc_callback'], 'notify' => $packet));
} else {
$packet = zot_build_packet($channel, 'notify', $env_recips, $private ? $hub['hubloc_sitekey'] : null, $hash);
queue_insert(array('hash' => $hash, 'account_id' => $target_item['aid'], 'channel_id' => $target_item['uid'], 'posturl' => $hub['hubloc_callback'], 'notify' => $packet, 'msg' => json_encode($encoded_item)));
// only create delivery reports for normal undeleted items
if (is_array($target_item) && array_key_exists('postopts', $target_item) && !$target_item['item_deleted'] && !get_config('system', 'disable_dreport')) {
q("insert into dreport ( dreport_mid, dreport_site, dreport_recip, dreport_result, dreport_time, dreport_xchan, dreport_queue ) values ( '%s','%s','%s','%s','%s','%s','%s' ) ", dbesc($target_item['mid']), dbesc($hub['hubloc_host']), dbesc($hub['hubloc_host']), dbesc('queued'), dbesc(datetime_convert()), dbesc($channel['channel_hash']), dbesc($hash));
}
}
$deliveries[] = $hash;
}
if ($normal_mode) {
$x = q("select * from hook where hook = 'notifier_normal'");
if ($x) {
proc_run('php', 'include/deliver_hooks.php', $target_item['id']);
}
}
if ($deliveries) {
do_delivery($deliveries);
}
logger('notifier: basic loop complete.', LOGGER_DEBUG);
call_hooks('notifier_end', $target_item);
logger('notifer: complete.');
return;
}
function queue_deliver($outq, $immediate = false)
{
$base = null;
$h = parse_url($outq['outq_posturl']);
if ($h) {
$base = $h['scheme'] . '://' . $h['host'] . ($h['port'] ? ':' . $h['port'] : '');
}
if ($base && $base !== z_root() && $immediate) {
$y = q("select site_update, site_dead from site where site_url = '%s' ", dbesc($base));
if ($y) {
if (intval($y[0]['site_dead'])) {
remove_queue_by_posturl($outq['outq_posturl']);
logger('dead site ignored ' . $base);
return;
}
if ($y[0]['site_update'] < datetime_convert('UTC', 'UTC', 'now - 1 month')) {
update_queue_item($outq['outq_hash'], 10);
logger('immediate delivery deferred for site ' . $base);
return;
}
} else {
// zot sites should all have a site record, unless they've been dead for as long as
// your site has existed. Since we don't know for sure what these sites are,
// call them unknown
q("insert into site (site_url, site_update, site_dead, site_type) values ('%s','%s',0,%d) ", dbesc($base), dbesc(datetime_convert()), intval($outq['outq_driver'] === 'post' ? SITE_TYPE_NOTZOT : SITE_TYPE_UNKNOWN));
}
}
$arr = array('outq' => $outq, 'base' => $base, 'handled' => false, 'immediate' => $immediate);
call_hooks('queue_deliver', $arr);
if ($arr['handled']) {
return;
}
// "post" queue driver - used for diaspora and friendica-over-diaspora communications.
if ($outq['outq_driver'] === 'post') {
$result = z_post_url($outq['outq_posturl'], $outq['outq_msg']);
if ($result['success'] && $result['return_code'] < 300) {
logger('deliver: queue post success to ' . $outq['outq_posturl'], LOGGER_DEBUG);
if ($base) {
q("update site set site_update = '%s', site_dead = 0 where site_url = '%s' ", dbesc(datetime_convert()), dbesc($base));
}
q("update dreport set dreport_result = '%s', dreport_time = '%s' where dreport_queue = '%s' limit 1", dbesc('accepted for delivery'), dbesc(datetime_convert()), dbesc($outq['outq_hash']));
remove_queue_item($outq['outq_hash']);
// server is responding - see if anything else is going to this destination and is piled up
// and try to send some more. We're relying on the fact that do_delivery() results in an
// immediate delivery otherwise we could get into a queue loop.
if (!$immediate) {
$x = q("select outq_hash from outq where outq_posturl = '%s' and outq_delivered = 0", dbesc($outq['outq_posturl']));
$piled_up = array();
if ($x) {
foreach ($x as $xx) {
$piled_up[] = $xx['outq_hash'];
}
}
if ($piled_up) {
do_delivery($piled_up);
}
}
} else {
logger('deliver: queue post returned ' . $result['return_code'] . ' from ' . $outq['outq_posturl'], LOGGER_DEBUG);
update_queue_item($outq['outq_posturl']);
}
return;
}
// normal zot delivery
logger('deliver: dest: ' . $outq['outq_posturl'], LOGGER_DEBUG);
$result = zot_zot($outq['outq_posturl'], $outq['outq_notify']);
if ($result['success']) {
logger('deliver: remote zot delivery succeeded to ' . $outq['outq_posturl']);
zot_process_response($outq['outq_posturl'], $result, $outq);
} else {
logger('deliver: remote zot delivery failed to ' . $outq['outq_posturl']);
logger('deliver: remote zot delivery fail data: ' . print_r($result, true), LOGGER_DATA);
update_queue_item($outq['outq_hash'], 10);
}
return;
}
