<?php
namespace Zotlabs\Lib;
use Zotlabs\Lib\Libsync;
/**
* @brief A class with chatroom related static methods.
*/
class Chatroom {
/**
* @brief Creates a chatroom.
*
* @param array $channel
* @param array $arr
* @return array An associative array containing:
* * \e boolean \b success - A boolean success status
* * \e string \b message - (optional) A string
*/
static public function create($channel, $arr) {
$ret = array('success' => false);
$name = trim($arr['name']);
if(! $name) {
$ret['message'] = t('Missing room name');
return $ret;
}
$r = q("select cr_id from chatroom where cr_uid = %d and cr_name = '%s' limit 1",
intval($channel['channel_id']),
dbesc($name)
);
if($r) {
$ret['message'] = t('Duplicate room name');
return $ret;
}
$r = q("select count(cr_id) as total from chatroom where cr_aid = %d",
intval($channel['channel_account_id'])
);
if($r)
$limit = service_class_fetch($channel['channel_id'], 'chatrooms');
if(($r) && ($limit !== false) && ($r[0]['total'] >= $limit)) {
$ret['message'] = upgrade_message();
return $ret;
}
if(! array_key_exists('expire', $arr))
$arr['expire'] = 120; // minutes, e.g. 2 hours
$created = datetime_convert();
$x = q("insert into chatroom ( cr_aid, cr_uid, cr_name, cr_created, cr_edited, cr_expire, allow_cid, allow_gid, deny_cid, deny_gid )
values ( %d, %d , '%s', '%s', '%s', %d, '%s', '%s', '%s', '%s' ) ",
intval($channel['channel_account_id']),
intval($channel['channel_id']),
dbesc($name),
dbesc($created),
dbesc($created),
intval($arr['expire']),
dbesc($arr['allow_cid']),
dbesc($arr['allow_gid']),
dbesc($arr['deny_cid']),
dbesc($arr['deny_gid'])
);
if($x)
$ret['success'] = true;
return $ret;
}
static public function destroy($channel,$arr) {
$ret = array('success' => false);
if(intval($arr['cr_id']))
$sql_extra = " and cr_id = " . intval($arr['cr_id']) . " ";
elseif(trim($arr['cr_name']))
$sql_extra = " and cr_name = '" . protect_sprintf(dbesc(trim($arr['cr_name']))) . "' ";
else {
$ret['message'] = t('Invalid room specifier.');
return $ret;
}
$r = q("select * from chatroom where cr_uid = %d $sql_extra limit 1",
intval($channel['channel_id'])
);
if(! $r) {
$ret['message'] = t('Invalid room specifier.');
return $ret;
}
Libsync::build_sync_packet($channel['channel_id'],array('chatroom' => $r));
q("delete from chatroom where cr_id = %d",
intval($r[0]['cr_id'])
);
if($r[0]['cr_id']) {
q("delete from chatpresence where cp_room = %d",
intval($r[0]['cr_id'])
);
q("delete from chat where chat_room = %d",
intval($r[0]['cr_id'])
);
}
$ret['success'] = true;
return $ret;
}
static public function enter($observer_xchan, $room_id, $status, $client) {
if(! $room_id || ! $observer_xchan)
return;
$r = q("select * from chatroom where cr_id = %d limit 1",
intval($room_id)
);
if(! $r) {
notice( t('Room not found.') . EOL);
return false;
}
require_once('include/security.php');
$sql_extra = permissions_sql($r[0]['cr_uid']);
$x = q("select * from chatroom where cr_id = %d and cr_uid = %d $sql_extra limit 1",
intval($room_id),
intval($r[0]['cr_uid'])
);
if(! $x) {
notice( t('Permission denied.') . EOL);
return false;
}
$limit = service_class_fetch($r[0]['cr_uid'], 'chatters_inroom');
if($limit !== false) {
$y = q("select count(*) as total from chatpresence where cp_room = %d",
intval($room_id)
);
if($y && $y[0]['total'] > $limit) {
notice( t('Room is full') . EOL);
return false;
}
}
if(intval($x[0]['cr_expire'])) {
$r = q("delete from chat where created < %s - INTERVAL %s and chat_room = %d",
db_utcnow(),
db_quoteinterval( intval($x[0]['cr_expire']) . ' MINUTE' ),
intval($x[0]['cr_id'])
);
}
$r = q("select * from chatpresence where cp_xchan = '%s' and cp_room = %d limit 1",
dbesc($observer_xchan),
intval($room_id)
);
if($r) {
q("update chatpresence set cp_last = '%s' where cp_id = %d and cp_client = '%s'",
dbesc(datetime_convert()),
intval($r[0]['cp_id']),
dbesc($client)
);
return true;
}
$r = q("insert into chatpresence ( cp_room, cp_xchan, cp_last, cp_status, cp_client )
values ( %d, '%s', '%s', '%s', '%s' )",
intval($room_id),
dbesc($observer_xchan),
dbesc(datetime_convert()),
dbesc($status),
dbesc($client)
);
return $r;
}
function leave($observer_xchan, $room_id, $client) {
if(! $room_id || ! $observer_xchan)
return;
$r = q("select * from chatpresence where cp_xchan = '%s' and cp_room = %d and cp_client = '%s' limit 1",
dbesc($observer_xchan),
intval($room_id),
dbesc($client)
);
if($r) {
q("delete from chatpresence where cp_id = %d",
intval($r[0]['cp_id'])
);
}
return true;
}
static public function roomlist($uid) {
require_once('include/security.php');
$sql_extra = permissions_sql($uid);
$r = q("select allow_cid, allow_gid, deny_cid, deny_gid, cr_name, cr_expire, cr_id, count(cp_id) as cr_inroom from chatroom left join chatpresence on cr_id = cp_room where cr_uid = %d $sql_extra group by cr_name, cr_id order by cr_name",
intval($uid)
);
return $r;
}
static public function list_count($uid) {
require_once('include/security.php');
$sql_extra = permissions_sql($uid);
$r = q("select count(*) as total from chatroom where cr_uid = %d $sql_extra",
intval($uid)
);
return $r[0]['total'];
}
/**
* @brief Create a chat message via API.
*
* It is the caller's responsibility to enter the room.
*
* @param int $uid
* @param int $room_id
* @param string $xchan
* @param string $text
* @return array
*/
static public function message($uid, $room_id, $xchan, $text) {
$ret = array('success' => false);
if(! $text)
return;
$sql_extra = permissions_sql($uid);
$r = q("select * from chatroom where cr_uid = %d and cr_id = %d $sql_extra",
intval($uid),
intval($room_id)
);
if(! $r)
return $ret;
$arr = [
'chat_room' => $room_id,
'chat_xchan' => $xchan,
'chat_text' => $text
];
/**
* @hooks chat_message
* Called to create a chat message.
* * \e int \b chat_room
* * \e string \b chat_xchan
* * \e string \b chat_text
*/
call_hooks('chat_message', $arr);
$x = q("insert into chat ( chat_room, chat_xchan, created, chat_text )
values( %d, '%s', '%s', '%s' )",
intval($room_id),
dbesc($xchan),
dbesc(datetime_convert()),
dbesc(str_rot47(base64url_encode($arr['chat_text'])))
);
$ret['success'] = true;
return $ret;
}
}
