/**
* @brief Create an array representing the important channel information
* which would be necessary to create a nomadic identity clone. This includes
* most channel resources and connection information with the exception of content.
*
* @param int $channel_id
* Channel_id to export
* @param boolean $items
* Include channel posts (wall items), default false
*
* @returns array
* See function for details
*/
function identity_basic_export($channel_id, $items = false)
{
/*
* Red basic channel export
*/
$ret = array();
// use constants here as otherwise we will have no idea if we can import from a site
// with a non-standard platform and version.
$ret['compatibility'] = array('project' => PLATFORM_NAME, 'version' => STD_VERSION, 'database' => DB_UPDATE_VERSION, 'server_role' => Zotlabs\Lib\System::get_server_role());
$r = q("select * from channel where channel_id = %d limit 1", intval($channel_id));
if ($r) {
translate_channel_perms_outbound($r[0]);
$ret['channel'] = $r[0];
$ret['relocate'] = ['channel_address' => $r[0]['channel_address'], 'url' => z_root()];
}
$r = q("select * from profile where uid = %d", intval($channel_id));
if ($r) {
$ret['profile'] = $r;
}
$xchans = array();
$r = q("select * from abook where abook_channel = %d ", intval($channel_id));
if ($r) {
$ret['abook'] = $r;
for ($x = 0; $x < count($ret['abook']); $x++) {
$xchans[] = $ret['abook'][$x]['abook_chan'];
$abconfig = load_abconfig($channel_id, $ret['abook'][$x]['abook_xchan']);
if ($abconfig) {
$ret['abook'][$x]['abconfig'] = $abconfig;
}
translate_abook_perms_outbound($ret['abook'][$x]);
}
stringify_array_elms($xchans);
}
if ($xchans) {
$r = q("select * from xchan where xchan_hash in ( " . implode(',', $xchans) . " ) ");
if ($r) {
$ret['xchan'] = $r;
}
$r = q("select * from hubloc where hubloc_hash in ( " . implode(',', $xchans) . " ) ");
if ($r) {
$ret['hubloc'] = $r;
}
}
$r = q("select * from `groups` where uid = %d ", intval($channel_id));
if ($r) {
$ret['group'] = $r;
}
$r = q("select * from group_member where uid = %d ", intval($channel_id));
if ($r) {
$ret['group_member'] = $r;
}
$r = q("select * from pconfig where uid = %d", intval($channel_id));
if ($r) {
$ret['config'] = $r;
}
$r = q("select mimetype, content, os_storage from photo where imgscale = 4 and photo_usage = %d and uid = %d limit 1", intval(PHOTO_PROFILE), intval($channel_id));
if ($r) {
$ret['photo'] = array('type' => $r[0]['mimetype'], 'data' => $r[0]['os_storage'] ? base64url_encode(file_get_contents($r[0]['content'])) : base64url_encode($r[0]['content']));
}
// All other term types will be included in items, if requested.
$r = q("select * from term where ttype in (%d,%d) and uid = %d", intval(TERM_SAVEDSEARCH), intval(TERM_THING), intval($channel_id));
if ($r) {
$ret['term'] = $r;
}
// add psuedo-column obj_baseurl to aid in relocations
$r = q("select obj.*, '%s' as obj_baseurl from obj where obj_channel = %d", dbesc(z_root()), intval($channel_id));
if ($r) {
$ret['obj'] = $r;
}
$r = q("select * from app where app_channel = %d and app_system = 0", intval($channel_id));
if ($r) {
for ($x = 0; $x < count($r); $x++) {
$r[$x]['term'] = q("select * from term where otype = %d and oid = %d", intval(TERM_OBJ_APP), intval($r[$x]['id']));
}
$ret['app'] = $r;
}
$r = q("select * from chatroom where cr_uid = %d", intval($channel_id));
if ($r) {
$ret['chatroom'] = $r;
}
$r = q("select * from event where uid = %d", intval($channel_id));
if ($r) {
$ret['event'] = $r;
}
$r = q("select * from item where resource_type = 'event' and uid = %d", intval($channel_id));
if ($r) {
$ret['event_item'] = array();
xchan_query($r);
$r = fetch_post_tags($r, true);
foreach ($r as $rr) {
$ret['event_item'][] = encode_item($rr, true);
}
}
$x = menu_list($channel_id);
if ($x) {
$ret['menu'] = array();
for ($y = 0; $y < count($x); $y++) {
$m = menu_fetch($x[$y]['menu_name'], $channel_id, $ret['channel']['channel_hash']);
if ($m) {
$ret['menu'][] = menu_element($ret['channel'], $m);
}
}
}
$addon = array('channel_id' => $channel_id, 'data' => $ret);
call_hooks('identity_basic_export', $addon);
$ret = $addon['data'];
if (!$items) {
return $ret;
}
$r = q("select * from likes where channel_id = %d", intval($channel_id));
if ($r) {
$ret['likes'] = $r;
}
$r = q("select * from conv where uid = %d", intval($channel_id));
if ($r) {
for ($x = 0; $x < count($r); $x++) {
$r[$x]['subject'] = base64url_decode(str_rot47($r[$x]['subject']));
}
$ret['conv'] = $r;
}
$r = q("select * from mail where mail.uid = %d", intval($channel_id));
if ($r) {
$m = array();
foreach ($r as $rr) {
xchan_mail_query($rr);
$m[] = mail_encode($rr, true);
}
$ret['mail'] = $m;
}
/** @warning this may run into memory limits on smaller systems */
/** export three months of posts. If you want to export and import all posts you have to start with
* the first year and export/import them in ascending order.
*
* Don't export linked resource items. we'll have to pull those out separately.
*/
$r = q("select * from item where item_wall = 1 and item_deleted = 0 and uid = %d and created > %s - INTERVAL %s and resource_type = '' order by created", intval($channel_id), db_utcnow(), db_quoteinterval('3 MONTH'));
if ($r) {
$ret['item'] = array();
xchan_query($r);
$r = fetch_post_tags($r, true);
foreach ($r as $rr) {
$ret['item'][] = encode_item($rr, true);
}
}
return $ret;
}
/**
* Send a zot packet to all hubs where this channel is duplicated, refreshing
* such things as personal settings, channel permissions, address book updates, etc.
*
* @param int $uid
* @param array $packet (optional) default null
* @param boolean $groups_changed (optional) default false
*/
function build_sync_packet($uid = 0, $packet = null, $groups_changed = false)
{
if (get_config('system', 'server_role') === 'basic') {
return;
}
logger('build_sync_packet');
if ($packet) {
logger('packet: ' . print_r($packet, true), LOGGER_DATA, LOG_DEBUG);
}
if (!$uid) {
$uid = local_channel();
}
if (!$uid) {
return;
}
$r = q("select * from channel where channel_id = %d limit 1", intval($uid));
if (!$r) {
return;
}
$channel = $r[0];
translate_channel_perms_outbound($channel);
if ($packet && array_key_exists('abook', $packet) && $packet['abook']) {
for ($x = 0; $x < count($packet['abook']); $x++) {
translate_abook_perms_outbound($packet['abook'][$x]);
}
}
if (intval($channel['channel_removed'])) {
return;
}
$h = q("select * from hubloc where hubloc_hash = '%s' and hubloc_deleted = 0", dbesc($channel['channel_hash']));
if (!$h) {
return;
}
$synchubs = array();
foreach ($h as $x) {
if ($x['hubloc_host'] == App::get_hostname()) {
continue;
}
$y = q("select site_dead from site where site_url = '%s' limit 1", dbesc($x['hubloc_url']));
if (!$y || $y[0]['site_dead'] == 0) {
$synchubs[] = $x;
}
}
if (!$synchubs) {
return;
}
$r = q("select xchan_guid, xchan_guid_sig from xchan where xchan_hash = '%s' limit 1", dbesc($channel['channel_hash']));
if (!$r) {
return;
}
$env_recips = array();
$env_recips[] = array('guid' => $r[0]['xchan_guid'], 'guid_sig' => $r[0]['xchan_guid_sig']);
$info = $packet ? $packet : array();
$info['type'] = 'channel_sync';
$info['encoding'] = 'red';
// note: not zot, this packet is very platform specific
$info['relocate'] = ['channel_address' => $channel['channel_address'], 'url' => z_root()];
if (array_key_exists($uid, App::$config) && array_key_exists('transient', App::$config[$uid])) {
$settings = App::$config[$uid]['transient'];
if ($settings) {
$info['config'] = $settings;
}
}
if ($channel) {
$info['channel'] = array();
foreach ($channel as $k => $v) {
// filter out any joined tables like xchan
if (strpos($k, 'channel_') !== 0) {
continue;
}
// don't pass these elements, they should not be synchronised
$disallowed = array('channel_id', 'channel_account_id', 'channel_primary', 'channel_prvkey', 'channel_address', 'channel_deleted', 'channel_removed', 'channel_system');
if (in_array($k, $disallowed)) {
continue;
}
$info['channel'][$k] = $v;
}
}
if ($groups_changed) {
$r = q("select hash as collection, visible, deleted, gname as name from groups where uid = %d", intval($uid));
if ($r) {
$info['collections'] = $r;
}
$r = q("select groups.hash as collection, group_member.xchan as member from groups left join group_member on groups.id = group_member.gid where group_member.uid = %d", intval($uid));
if ($r) {
$info['collection_members'] = $r;
}
}
$interval = get_config('system', 'delivery_interval') !== false ? intval(get_config('system', 'delivery_interval')) : 2;
logger('build_sync_packet: packet: ' . print_r($info, true), LOGGER_DATA, LOG_DEBUG);
$total = count($synchubs);
foreach ($synchubs as $hub) {
$hash = random_string();
$n = zot_build_packet($channel, 'notify', $env_recips, $hub['hubloc_sitekey'], $hash);
queue_insert(array('hash' => $hash, 'account_id' => $channel['channel_account_id'], 'channel_id' => $channel['channel_id'], 'posturl' => $hub['hubloc_callback'], 'notify' => $n, 'msg' => json_encode($info)));
Zotlabs\Daemon\Master::Summon(array('Deliver', $hash));
$total = $total - 1;
if ($interval && $total) {
@time_sleep_until(microtime(true) + (double) $interval);
}
}
}
