719 lines
22 KiB
PHP
719 lines
22 KiB
PHP
<?php /** @file */
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require_once("boot.php");
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require_once('include/queue_fn.php');
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require_once('include/html2plain.php');
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/*
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* This file was at one time responsible for doing all deliveries, but this caused
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* big problems on shared hosting systems, where the process might get killed by the
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* hosting provider and nothing would get delivered.
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* It now only delivers one message under certain cases, and invokes a queued
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* delivery mechanism (include/deliver.php) to deliver individual contacts at
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* controlled intervals.
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* This has a much better chance of surviving random processes getting killed
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* by the hosting provider.
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*
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* The basic flow is:
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* Identify the type of message
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* Collect any information that needs to be sent
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* Convert it into a suitable generic format for sending
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* Figure out who the recipients are and if we need to relay
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* through a conversation owner
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* Once we know what recipients are involved, collect a list of
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* destination sites
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* Build and store a queue item for each unique site and invoke
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* a delivery process for each site or a small number of sites (1-3)
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* and add a slight delay between each delivery invocation if desired (usually)
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*
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*/
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/*
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* The notifier is typically called with:
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*
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* proc_run('php', "include/notifier.php", 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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* expire (in items.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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*
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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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* ZOT
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* permission_update abook_id
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* refresh_all channel_id
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* purge_all channel_id
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* expire channel_id
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* relay item_id (item was relayed to owner, we will deliver it as owner)
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* location channel_id
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* request channel_id xchan_hash message_id
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* rating xlink_id
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*
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*/
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require_once('include/cli_startup.php');
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require_once('include/zot.php');
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require_once('include/queue_fn.php');
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function notifier_run($argv, $argc){
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cli_startup();
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$a = get_app();
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require_once("session.php");
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require_once("datetime.php");
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require_once('include/items.php');
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require_once('include/bbcode.php');
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if($argc < 3)
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return;
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logger('notifier: invoked: ' . print_r($argv,true), LOGGER_DEBUG);
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$cmd = $argv[1];
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$item_id = $argv[2];
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$extra = (($argc > 3) ? $argv[3] : null);
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if(! $item_id)
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return;
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require_once('include/identity.php');
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$sys = get_sys_channel();
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if($cmd == 'permission_update') {
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// Get the recipient
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$r = q("select abook.*, hubloc.* from abook
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left join hubloc on hubloc_hash = abook_xchan
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where abook_id = %d and not ( abook_flags & %d ) > 0
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and not (hubloc_flags & %d) > 0 and not (hubloc_status & %d) > 0 limit 1",
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intval($item_id),
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intval(ABOOK_FLAG_SELF),
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intval(HUBLOC_FLAGS_DELETED),
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intval(HUBLOC_OFFLINE)
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);
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if($r) {
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// Get the sender
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$s = q("select * from channel left join xchan on channel_hash = xchan_hash where channel_id = %d limit 1",
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intval($r[0]['abook_channel'])
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);
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if($s) {
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if($r[0]['hubloc_network'] === 'diaspora' || $r[0]['hubloc_network'] === 'friendica-over-diaspora') {
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require_once('include/diaspora.php');
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diaspora_share($s[0],$r[0]);
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}
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else {
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// send a refresh message to each hub they have registered here
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$h = q("select * from hubloc where hubloc_hash = '%s'
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and not (hubloc_flags & %d) > 0 and not (hubloc_status & %d) > 0",
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dbesc($r[0]['hubloc_hash']),
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intval(HUBLOC_FLAGS_DELETED),
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intval(HUBLOC_OFFLINE)
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);
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if($h) {
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foreach($h as $hh) {
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$data = zot_build_packet($s[0],'refresh',array(array(
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'guid' => $hh['hubloc_guid'],
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'guid_sig' => $hh['hubloc_guid_sig'],
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'url' => $hh['hubloc_url'])
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));
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if($data) {
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$result = zot_zot($hh['hubloc_callback'],$data);
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// if immediate delivery failed, stick it in the queue to try again later.
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if(! $result['success']) {
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$hash = random_string();
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q("insert into outq ( outq_hash, outq_account, outq_channel, outq_driver, outq_posturl, outq_async, outq_created, outq_updated, outq_notify, outq_msg )
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values ( '%s', %d, %d, '%s', '%s', %d, '%s', '%s', '%s', '%s' )",
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dbesc($hash),
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intval($s[0]['channel_account_id']),
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intval($s[0]['channel_id']),
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dbesc('zot'),
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dbesc($hh['hubloc_callback']),
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intval(1),
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dbesc(datetime_convert()),
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dbesc(datetime_convert()),
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dbesc($data),
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dbesc('')
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);
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}
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}
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}
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}
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}
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}
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}
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return;
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}
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$expire = false;
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$request = false;
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$mail = false;
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$fsuggest = false;
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$top_level = false;
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$location = false;
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$recipients = array();
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$url_recipients = array();
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$normal_mode = true;
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$packet_type = 'undefined';
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if($cmd === 'mail') {
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$normal_mode = false;
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$mail = true;
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$private = true;
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$message = q("SELECT * FROM `mail` WHERE `id` = %d LIMIT 1",
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intval($item_id)
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);
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if(! $message) {
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return;
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}
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xchan_mail_query($message[0]);
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$uid = $message[0]['channel_id'];
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$recipients[] = $message[0]['from_xchan']; // include clones
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$recipients[] = $message[0]['to_xchan'];
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$item = $message[0];
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$encoded_item = encode_mail($item);
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$s = q("select * from channel where channel_id = %d limit 1",
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intval($item['channel_id'])
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);
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if($s)
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$channel = $s[0];
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}
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elseif($cmd === 'request') {
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$channel_id = $item_id;
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$xchan = $argv[3];
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$request_message_id = $argv[4];
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$s = q("select * from channel where channel_id = %d limit 1",
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intval($channel_id)
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);
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if($s)
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$channel = $s[0];
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$private = true;
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$recipients[] = $xchan;
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$packet_type = 'request';
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$normal_mode = false;
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}
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elseif($cmd === 'expire') {
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// FIXME
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// This will require a special zot packet containing a list of item message_id's to be expired.
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// This packet will be public, since we cannot selectively deliver here.
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// We need the handling on this end to create the array, and the handling on the remote end
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// to verify permissions (for each item) and process it. Until this is complete, the expire feature will be disabled.
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return;
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$normal_mode = false;
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$expire = true;
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$items = q("SELECT * FROM item WHERE uid = %d AND ( item_flags & %d )>0
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AND ( item_restrict & %d )>0 AND `changed` > %s - INTERVAL %s",
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intval($item_id),
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intval(ITEM_WALL),
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intval(ITEM_DELETED),
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db_utcnow(), db_quoteinterval('10 MINUTE')
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);
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$uid = $item_id;
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$item_id = 0;
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if(! $items)
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return;
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}
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elseif($cmd === 'suggest') {
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$normal_mode = false;
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$fsuggest = true;
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$suggest = q("SELECT * FROM `fsuggest` WHERE `id` = %d LIMIT 1",
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intval($item_id)
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);
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if(! count($suggest))
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return;
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$uid = $suggest[0]['uid'];
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$recipients[] = $suggest[0]['cid'];
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$item = $suggest[0];
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}
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elseif($cmd === 'refresh_all') {
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logger('notifier: refresh_all: ' . $item_id);
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$s = q("select * from channel where channel_id = %d limit 1",
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intval($item_id)
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);
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if($s)
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$channel = $s[0];
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$uid = $item_id;
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$recipients = array();
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$r = q("select abook_xchan from abook where abook_channel = %d",
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intval($item_id)
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);
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if($r) {
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foreach($r as $rr) {
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$recipients[] = $rr['abook_xchan'];
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}
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}
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$private = false;
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$packet_type = 'refresh';
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}
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elseif($cmd === 'location') {
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logger('notifier: location: ' . $item_id);
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$s = q("select * from channel where channel_id = %d limit 1",
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intval($item_id)
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);
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if($s)
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$channel = $s[0];
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$uid = $item_id;
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$recipients = array();
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$r = q("select abook_xchan from abook where abook_channel = %d",
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intval($item_id)
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);
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if($r) {
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foreach($r as $rr) {
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$recipients[] = $rr['abook_xchan'];
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}
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}
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$encoded_item = array('locations' => zot_encode_locations($channel),'type' => 'location', 'encoding' => 'zot');
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$target_item = array('aid' => $channel['channel_account_id'],'uid' => $channel['channel_id']);
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$private = false;
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$packet_type = 'location';
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$location = true;
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}
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elseif($cmd === 'purge_all') {
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logger('notifier: purge_all: ' . $item_id);
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$s = q("select * from channel where channel_id = %d limit 1",
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intval($item_id)
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);
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if($s)
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$channel = $s[0];
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$uid = $item_id;
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$recipients = array();
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$r = q("select abook_xchan from abook where abook_channel = %d",
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intval($item_id)
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);
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if($r) {
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foreach($r as $rr) {
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$recipients[] = $rr['abook_xchan'];
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}
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}
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$private = false;
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$packet_type = 'purge';
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}
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else {
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// Normal items
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// Fetch the target item
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$r = q("SELECT * FROM item WHERE id = %d and parent != 0 LIMIT 1",
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intval($item_id)
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);
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if(! $r)
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return;
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xchan_query($r);
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$r = fetch_post_tags($r);
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$target_item = $r[0];
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$deleted_item = false;
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if($target_item['item_restrict'] & ITEM_DELETED) {
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logger('notifier: target item ITEM_DELETED', LOGGER_DEBUG);
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$deleted_item = true;
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}
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$unforwardable = ITEM_UNPUBLISHED|ITEM_DELAYED_PUBLISH|ITEM_WEBPAGE|ITEM_BUILDBLOCK|ITEM_PDL;
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if($target_item['item_restrict'] & $unforwardable) {
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logger('notifier: target item not forwardable: flags ' . $target_item['item_restrict'], LOGGER_DEBUG);
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return;
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}
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$s = q("select * from channel where channel_id = %d limit 1",
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intval($target_item['uid'])
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);
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if($s)
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$channel = $s[0];
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if($channel['channel_hash'] !== $target_item['author_xchan'] && $channel['channel_hash'] !== $target_item['owner_xchan']) {
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logger("notifier: Sending channel {$channel['channel_hash']} is not owner {$target_item['owner_xchan']} or author {$target_item['author_xchan']}");
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return;
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}
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if($target_item['id'] == $target_item['parent']) {
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$parent_item = $target_item;
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$top_level_post = true;
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}
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else {
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// fetch the parent item
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$r = q("SELECT * from item where id = %d order by id asc",
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intval($target_item['parent'])
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);
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if(! $r)
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return;
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xchan_query($r);
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$r = fetch_post_tags($r);
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$parent_item = $r[0];
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$top_level_post = false;
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}
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// avoid looping of discover items 12/4/2014
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if($sys && $parent_item['uid'] == $sys['channel_id'])
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return;
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$encoded_item = encode_item($target_item);
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// Send comments to the owner to re-deliver to everybody in the conversation
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// We only do this if the item in question originated on this site. This prevents looping.
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// To clarify, a site accepting a new comment is responsible for sending it to the owner for relay.
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// Relaying should never be initiated on a post that arrived from elsewhere.
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// We should normally be able to rely on ITEM_ORIGIN, but start_delivery_chain() incorrectly set this
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// flag on comments for an extended period. So we'll also call comment_local_origin() which looks at
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// the hostname in the message_id and provides a second (fallback) opinion.
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$relay_to_owner = (((! $top_level_post) && ($target_item['item_flags'] & ITEM_ORIGIN) && comment_local_origin($target_item))
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? true
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: false
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);
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$uplink = false;
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// $cmd === 'relay' indicates the owner is sending it to the original recipients
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// don't allow the item in the relay command to relay to owner under any circumstances, it will loop
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logger('notifier: relay_to_owner: ' . (($relay_to_owner) ? 'true' : 'false'), LOGGER_DATA);
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logger('notifier: top_level_post: ' . (($top_level_post) ? 'true' : 'false'), LOGGER_DATA);
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logger('notifier: target_item_flags: ' . $target_item['item_flags'] . ' ' . (($target_item['item_flags'] & ITEM_ORIGIN ) ? 'true' : 'false'), LOGGER_DATA);
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// tag_deliver'd post which needs to be sent back to the original author
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if(($cmd === 'uplink') && ($parent_item['item_flags'] & ITEM_UPLINK) && (! $top_level_post)) {
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logger('notifier: uplink');
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$uplink = true;
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}
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if(($relay_to_owner || $uplink) && ($cmd !== 'relay')) {
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logger('notifier: followup relay', LOGGER_DEBUG);
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$recipients = array(($uplink) ? $parent_item['source_xchan'] : $parent_item['owner_xchan']);
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$private = true;
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if(! $encoded_item['flags'])
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$encoded_item['flags'] = array();
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$encoded_item['flags'][] = 'relay';
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}
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else {
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logger('notifier: normal distribution', LOGGER_DEBUG);
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if($cmd === 'relay')
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logger('notifier: owner relay');
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// if our parent is a tag_delivery recipient, uplink to the original author causing
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// a delivery fork.
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if(($parent_item['item_flags'] & ITEM_UPLINK) && (! $top_level_post) && ($cmd !== 'uplink')) {
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logger('notifier: uplinking this item');
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proc_run('php','include/notifier.php','uplink',$item_id);
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}
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$private = false;
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$recipients = collect_recipients($parent_item,$private);
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// FIXME add any additional recipients such as mentions, etc.
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// don't send deletions onward for other people's stuff
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// TODO verify this is needed - copied logic from same place in old code
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if(($target_item['item_restrict'] & ITEM_DELETED) && (!($target_item['item_flags'] & ITEM_WALL))) {
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logger('notifier: ignoring delete notification for non-wall item');
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return;
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}
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}
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}
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$walltowall = (($top_level_post && $channel['xchan_hash'] === $target_item['author_xchan']) ? true : false);
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// Generic delivery section, we have an encoded item and recipients
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// Now start the delivery process
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$x = $encoded_item;
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$x['title'] = 'private';
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$x['body'] = 'private';
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logger('notifier: encoded item: ' . print_r($x,true), LOGGER_DATA);
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stringify_array_elms($recipients);
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if(! $recipients)
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return;
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// logger('notifier: recipients: ' . print_r($recipients,true));
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$env_recips = (($private) ? array() : null);
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$details = q("select xchan_hash, xchan_instance_url, xchan_network, xchan_addr, xchan_guid, xchan_guid_sig from xchan where xchan_hash in (" . implode(',',$recipients) . ")");
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$recip_list = array();
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if($details) {
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foreach($details as $d) {
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// If the recipient is federated from a traditional network they won't be able to
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// handle nomadic identity. If we're publishing from a site that they aren't
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// directly connected with, ignore them.
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// FIXME: make sure we run through a notifier loop on the hub they're connected
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// with if this post comes in from a different hub - so that we will deliver to them.
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// On the down side, these channels will stop working if the hub they connected with
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// goes down permanently, as they are (doh) not nomadic.
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if(($d['xchan_instance_url']) && ($d['xchan_instance_url'] != z_root()))
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continue;
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$recip_list[] = $d['xchan_addr'] . ' (' . $d['xchan_hash'] . ')';
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if($private)
|
|
$env_recips[] = array('guid' => $d['xchan_guid'],'guid_sig' => $d['xchan_guid_sig'],'hash' => $d['xchan_hash']);
|
|
}
|
|
}
|
|
|
|
if(($private) && (! $env_recips)) {
|
|
// shouldn't happen
|
|
logger('notifier: private message with no envelope recipients.' . print_r($argv,true));
|
|
}
|
|
|
|
logger('notifier: recipients (may be delivered to more if public): ' . print_r($recip_list,true), LOGGER_DEBUG);
|
|
|
|
|
|
// Now we have collected recipients (except for external mentions, FIXME)
|
|
// Let's reduce this to a set of hubs.
|
|
|
|
logger('notifier: hub choice: ' . intval($relay_to_owner) . ' ' . intval($private) . ' ' . $cmd, LOGGER_DEBUG);
|
|
|
|
// FIXME: I think we need to remove the private bit or this clause will never execute. Needs more coffee to think it through.
|
|
// We may in fact have to send it to clones in case the one we pick recently died.
|
|
|
|
if($relay_to_owner && (! $private) && ($cmd !== 'relay')) {
|
|
|
|
// If sending a followup to the post owner, only send it to one channel clone - to avoid race conditions.
|
|
// In this case we'll pick the most recently contacted hub, as their primary might be down and the most
|
|
// recently contacted has the best chance of being alive.
|
|
|
|
// For private posts or uplinks we have to do things differently as only the sending clone will have the recipient list.
|
|
// We have to send to all clone channels of the owner to find out who has the definitive list. Posts with
|
|
// item_private set (but no ACL list) will return empty recipients (except for the sender and owner) in
|
|
// collect_recipients() above. The end result is we should get only one delivery per delivery chain if we
|
|
// aren't the owner or author.
|
|
|
|
|
|
$r = q("select hubloc_guid, hubloc_url, hubloc_sitekey, hubloc_network, hubloc_flags, hubloc_callback, hubloc_host from hubloc
|
|
where hubloc_hash in (" . implode(',',$recipients) . ") order by hubloc_connected desc limit 1");
|
|
}
|
|
else {
|
|
$r = q("select hubloc_guid, hubloc_url, hubloc_sitekey, hubloc_network, hubloc_flags, hubloc_callback, hubloc_host from hubloc
|
|
where hubloc_hash in (" . implode(',',$recipients) . ") and not (hubloc_flags & %d) > 0 and not (hubloc_status & %d) > 0",
|
|
intval(HUBLOC_FLAGS_DELETED),
|
|
intval(HUBLOC_OFFLINE)
|
|
);
|
|
}
|
|
|
|
if(! $r) {
|
|
logger('notifier: no hubs');
|
|
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 $hub) {
|
|
if($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);
|
|
|
|
$interval = ((get_config('system','delivery_interval') !== false)
|
|
? intval(get_config('system','delivery_interval')) : 2 );
|
|
|
|
$deliveries_per_process = intval(get_config('system','delivery_batch_count'));
|
|
|
|
if($deliveries_per_process <= 0)
|
|
$deliveries_per_process = 1;
|
|
|
|
$deliver = array();
|
|
|
|
foreach($dhubs as $hub) {
|
|
|
|
if(defined('DIASPORA_RELIABILITY_EMULATION')) {
|
|
$cointoss = mt_rand(0,2);
|
|
if($cointoss == 2) {
|
|
continue;
|
|
}
|
|
}
|
|
|
|
|
|
if($hub['hubloc_network'] === 'diaspora' || $hub['hubloc_network'] === 'friendica-over-diaspora') {
|
|
if(! get_config('system','diaspora_enabled'))
|
|
continue;
|
|
|
|
require_once('include/diaspora.php');
|
|
|
|
diaspora_process_outbound(array(
|
|
'channel' => $channel,
|
|
'env_recips' => $env_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,
|
|
'expire' => $expire,
|
|
'mail' => $mail,
|
|
'location' => $location,
|
|
'fsuggest' => $fsuggest,
|
|
'request' => $request,
|
|
'normal_mode' => $normal_mode,
|
|
'packet_type' => $packet_type,
|
|
'walltowall' => $walltowall
|
|
));
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
// default: zot protocol
|
|
|
|
|
|
$hash = random_string();
|
|
if($packet_type === 'refresh' || $packet_type === 'purge') {
|
|
$n = zot_build_packet($channel,$packet_type);
|
|
q("insert into outq ( outq_hash, outq_account, outq_channel, outq_driver, outq_posturl, outq_async, outq_created, outq_updated, outq_notify, outq_msg ) values ( '%s', %d, %d, '%s', '%s', %d, '%s', '%s', '%s', '%s' )",
|
|
dbesc($hash),
|
|
intval($channel['channel_account_id']),
|
|
intval($channel['channel_id']),
|
|
dbesc('zot'),
|
|
dbesc($hub['hubloc_callback']),
|
|
intval(1),
|
|
dbesc(datetime_convert()),
|
|
dbesc(datetime_convert()),
|
|
dbesc($n),
|
|
dbesc('')
|
|
);
|
|
}
|
|
elseif($packet_type === 'request') {
|
|
$n = zot_build_packet($channel,'request',$env_recips,$hub['hubloc_sitekey'],$hash,array('message_id' => $request_message_id));
|
|
q("insert into outq ( outq_hash, outq_account, outq_channel, outq_driver, outq_posturl, outq_async, outq_created, outq_updated, outq_notify, outq_msg ) values ( '%s', %d, %d, '%s', '%s', %d, '%s', '%s', '%s', '%s' )",
|
|
dbesc($hash),
|
|
intval($channel['channel_account_id']),
|
|
intval($channel['channel_id']),
|
|
dbesc('zot'),
|
|
dbesc($hub['hubloc_callback']),
|
|
intval(1),
|
|
dbesc(datetime_convert()),
|
|
dbesc(datetime_convert()),
|
|
dbesc($n),
|
|
dbesc('')
|
|
);
|
|
}
|
|
else {
|
|
$n = zot_build_packet($channel,'notify',$env_recips,(($private) ? $hub['hubloc_sitekey'] : null),$hash);
|
|
q("insert into outq ( outq_hash, outq_account, outq_channel, outq_driver, outq_posturl, outq_async, outq_created, outq_updated, outq_notify, outq_msg ) values ( '%s', %d, %d, '%s', '%s', %d, '%s', '%s', '%s', '%s' )",
|
|
dbesc($hash),
|
|
intval($target_item['aid']),
|
|
intval($target_item['uid']),
|
|
dbesc('zot'),
|
|
dbesc($hub['hubloc_callback']),
|
|
intval(1),
|
|
dbesc(datetime_convert()),
|
|
dbesc(datetime_convert()),
|
|
dbesc($n),
|
|
dbesc(json_encode($encoded_item))
|
|
);
|
|
}
|
|
$deliver[] = $hash;
|
|
|
|
if(count($deliver) >= $deliveries_per_process) {
|
|
proc_run('php','include/deliver.php',$deliver);
|
|
$deliver = array();
|
|
if($interval)
|
|
@time_sleep_until(microtime(true) + (float) $interval);
|
|
}
|
|
}
|
|
|
|
// catch any stragglers
|
|
|
|
if(count($deliver)) {
|
|
proc_run('php','include/deliver.php',$deliver);
|
|
}
|
|
|
|
logger('notifier: basic loop complete.', LOGGER_DEBUG);
|
|
|
|
if($normal_mode)
|
|
call_hooks('notifier_normal',$target_item);
|
|
|
|
|
|
call_hooks('notifier_end',$target_item);
|
|
|
|
logger('notifer: complete.');
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
if (array_search(__file__,get_included_files())===0){
|
|
notifier_run($argv,$argc);
|
|
killme();
|
|
}
|