torrentpier/library/includes/sessions.php

832 lines
26 KiB
PHP

<?php
/**
* MIT License
*
* Copyright (c) 2005-2017 TorrentPier
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
if (!defined('BB_ROOT')) {
die(basename(__FILE__));
}
define('ONLY_NEW_POSTS', 1);
define('ONLY_NEW_TOPICS', 2);
class user_common
{
/**
* Config
*/
public $cfg = array(
'req_login' => false, // requires user to be logged in
'req_session_admin' => false, // requires active admin session (for moderation or admin actions)
);
/**
* PHP-JS exchangeable options (JSON'ized as {USER_OPTIONS_JS} in TPL)
*/
public $opt_js = array(
'only_new' => 0, // show ony new posts or topics
'h_av' => 0, // hide avatar
'h_rnk_i' => 0, // hide rank images
'h_post_i' => 0, // hide post images
'h_smile' => 0, // hide smilies
'h_sig' => 0, // hide signatures
'sp_op' => 0, // show spoiler opened
'tr_t_ax' => 0, // ajax open topics
'tr_t_t' => 0, // show time of the creation topics
'hl_tr' => 1, // show cursor in tracker.php
'i_aft_l' => 0, // show images only after full loading
'h_tsp' => 0, // show released title {...}
);
/**
* Defaults options for guests
*/
public $opt_js_guest = array(
'h_av' => 1, // hide avatar
'h_rnk_i' => 1, // hide rank images
'h_smile' => 1, // hide smilies
'h_sig' => 1, // hide signatures
);
/**
* Sessiondata
*/
public $sessiondata = array(
'uk' => null,
'uid' => null,
'sid' => '',
);
/**
* Old $userdata
*/
public $data = array();
/**
* Shortcuts
*/
public $id = null;
/**
* Misc
*/
public $show_ads = false;
/**
* Constructor
*/
public function __construct()
{
$this->get_sessiondata();
}
/**
* Start session (restore existent session or create new)
*/
public function session_start($cfg = array())
{
global $bb_cfg;
$update_sessions_table = false;
$this->cfg = array_merge($this->cfg, $cfg);
$session_id = $this->sessiondata['sid'];
// Does a session exist?
if ($session_id || !$this->sessiondata['uk']) {
$SQL = DB()->get_empty_sql_array();
$SQL['SELECT'][] = "u.*, s.*";
$SQL['FROM'][] = BB_SESSIONS . " s";
$SQL['INNER JOIN'][] = BB_USERS . " u ON(u.user_id = s.session_user_id)";
if ($session_id) {
$SQL['WHERE'][] = "s.session_id = '$session_id'";
if ($bb_cfg['torhelp_enabled']) {
$SQL['SELECT'][] = "th.topic_id_csv AS torhelp";
$SQL['LEFT JOIN'][] = BB_BT_TORHELP . " th ON(u.user_id = th.user_id)";
}
$userdata_cache_id = $session_id;
} else {
$SQL['WHERE'][] = "s.session_ip = '" . USER_IP . "'";
$SQL['WHERE'][] = "s.session_user_id = " . GUEST_UID;
$userdata_cache_id = USER_IP;
}
if (!$this->data = cache_get_userdata($userdata_cache_id)) {
$this->data = DB()->fetch_row($SQL);
if ($this->data && (TIMENOW - $this->data['session_time']) > $bb_cfg['session_update_intrv']) {
$this->data['session_time'] = TIMENOW;
$update_sessions_table = true;
}
cache_set_userdata($this->data);
}
}
// Did the session exist in the DB?
if ($this->data) {
// Do not check IP assuming equivalence, if IPv4 we'll check only first 24
// bits ... I've been told (by vHiker) this should alleviate problems with
// load balanced et al proxies while retaining some reliance on IP security.
$ip_check_s = substr($this->data['session_ip'], 0, 6);
$ip_check_u = substr(USER_IP, 0, 6);
if ($ip_check_s == $ip_check_u) {
if ($this->data['user_id'] != GUEST_UID && defined('IN_ADMIN')) {
define('SID_GET', "sid={$this->data['session_id']}");
}
$session_id = $this->sessiondata['sid'] = $this->data['session_id'];
// Only update session a minute or so after last update
if ($update_sessions_table) {
DB()->query("
UPDATE " . BB_SESSIONS . " SET
session_time = " . TIMENOW . "
WHERE session_id = '$session_id'
LIMIT 1
");
}
$this->set_session_cookies($this->data['user_id']);
} else {
$this->data = array();
}
}
// If we reach here then no (valid) session exists. So we'll create a new one,
// using the cookie user_id if available to pull basic user prefs.
if (!$this->data) {
$login = false;
$user_id = ($bb_cfg['allow_autologin'] && $this->sessiondata['uk'] && $this->sessiondata['uid']) ? $this->sessiondata['uid'] : GUEST_UID;
if ($userdata = get_userdata(intval($user_id), false, true)) {
if ($userdata['user_id'] != GUEST_UID && $userdata['user_active']) {
if (verify_id($this->sessiondata['uk'], LOGIN_KEY_LENGTH) && $this->verify_autologin_id($userdata, true, false)) {
$login = ($userdata['autologin_id'] && $this->sessiondata['uk'] === $userdata['autologin_id']);
}
}
}
if (!$userdata || ($userdata['user_id'] != GUEST_UID && !$login)) {
$userdata = get_userdata(GUEST_UID, false, true);
}
$this->session_create($userdata, true);
}
define('IS_GUEST', (!$this->data['session_logged_in']));
define('IS_ADMIN', (!IS_GUEST && $this->data['user_level'] == ADMIN));
define('IS_MOD', (!IS_GUEST && $this->data['user_level'] == MOD));
define('IS_GROUP_MEMBER', (!IS_GUEST && $this->data['user_level'] == GROUP_MEMBER));
define('IS_USER', (!IS_GUEST && $this->data['user_level'] == USER));
define('IS_SUPER_ADMIN', (IS_ADMIN && isset($bb_cfg['super_admins'][$this->data['user_id']])));
define('IS_AM', (IS_ADMIN || IS_MOD));
$this->set_shortcuts();
// Redirect guests to login page
if (IS_GUEST && $this->cfg['req_login']) {
login_redirect();
}
$this->init_userprefs();
return $this->data;
}
/**
* Create new session for the given user
*/
public function session_create($userdata, $auto_created = false)
{
global $bb_cfg;
$this->data = $userdata;
$session_id = $this->sessiondata['sid'];
$login = (int)($this->data['user_id'] != GUEST_UID);
$is_user = ($this->data['user_level'] != ADMIN);
$user_id = (int)$this->data['user_id'];
$mod_admin_session = ($this->data['user_level'] == ADMIN || $this->data['user_level'] == MOD);
// Initial ban check against user_id or IP address
if ($is_user) {
preg_match('#(..)(..)(..)(..)#', USER_IP, $ip);
$where_sql = "ban_ip IN('" . USER_IP . "', '$ip[1]$ip[2]$ip[3]ff', '$ip[1]$ip[2]ffff', '$ip[1]ffffff')";
$where_sql .= ($login) ? " OR ban_userid = $user_id" : '';
$sql = "SELECT ban_id FROM " . BB_BANLIST . " WHERE $where_sql LIMIT 1";
if (DB()->fetch_row($sql)) {
header('Location: https://torrentpier.me/banned/');
}
}
// Create new session
for ($i = 0, $max_try = 5; $i <= $max_try; $i++) {
$session_id = make_rand_str(SID_LENGTH);
$args = DB()->build_array('INSERT', array(
'session_id' => (string)$session_id,
'session_user_id' => (int)$user_id,
'session_start' => (int)TIMENOW,
'session_time' => (int)TIMENOW,
'session_ip' => (string)USER_IP,
'session_logged_in' => (int)$login,
'session_admin' => (int)$mod_admin_session,
));
$sql = "INSERT INTO " . BB_SESSIONS . $args;
if (@DB()->query($sql)) {
break;
}
if ($i == $max_try) {
trigger_error('Error creating new session', E_USER_ERROR);
}
}
// Update last visit for logged in users
if ($login) {
$last_visit = $this->data['user_lastvisit'];
if (!$session_time = $this->data['user_session_time']) {
$last_visit = TIMENOW;
define('FIRST_LOGON', true);
} elseif ($session_time < (TIMENOW - $bb_cfg['last_visit_update_intrv'])) {
$last_visit = max($session_time, (TIMENOW - 86400 * $bb_cfg['max_last_visit_days']));
}
if ($last_visit != $this->data['user_lastvisit']) {
DB()->query("
UPDATE " . BB_USERS . " SET
user_session_time = " . TIMENOW . ",
user_lastvisit = $last_visit,
user_last_ip = '" . USER_IP . "',
user_reg_ip = IF(user_reg_ip = '', '" . USER_IP . "', user_reg_ip)
WHERE user_id = $user_id
LIMIT 1
");
bb_setcookie(COOKIE_TOPIC, '');
bb_setcookie(COOKIE_FORUM, '');
$this->data['user_lastvisit'] = $last_visit;
}
if (!empty($_POST['autologin']) && $bb_cfg['allow_autologin']) {
if (!$auto_created) {
$this->verify_autologin_id($this->data, true, true);
}
$this->sessiondata['uk'] = $this->data['autologin_id'];
}
$this->sessiondata['uid'] = $user_id;
$this->sessiondata['sid'] = $session_id;
}
$this->data['session_id'] = $session_id;
$this->data['session_ip'] = USER_IP;
$this->data['session_user_id'] = $user_id;
$this->data['session_logged_in'] = $login;
$this->data['session_start'] = TIMENOW;
$this->data['session_time'] = TIMENOW;
$this->data['session_admin'] = $mod_admin_session;
$this->set_session_cookies($user_id);
if ($login && (defined('IN_ADMIN') || $mod_admin_session)) {
define('SID_GET', "sid=$session_id");
}
cache_set_userdata($this->data);
return $this->data;
}
/**
* Initialize sessiondata stored in cookies
*/
public function session_end($update_lastvisit = false, $set_cookie = true)
{
DB()->query("
DELETE FROM " . BB_SESSIONS . "
WHERE session_id = '{$this->data['session_id']}'
");
if (!IS_GUEST) {
if ($update_lastvisit) {
DB()->query("
UPDATE " . BB_USERS . " SET
user_session_time = " . TIMENOW . ",
user_lastvisit = " . TIMENOW . ",
user_last_ip = '" . USER_IP . "',
user_reg_ip = IF(user_reg_ip = '', '" . USER_IP . "', user_reg_ip)
WHERE user_id = {$this->data['user_id']}
LIMIT 1
");
}
if (isset($_REQUEST['reset_autologin'])) {
$this->create_autologin_id($this->data, false);
DB()->query("
DELETE FROM " . BB_SESSIONS . "
WHERE session_user_id = '{$this->data['user_id']}'
");
}
}
if ($set_cookie) {
$this->set_session_cookies(GUEST_UID);
}
}
/**
* Login
*/
public function login($args, $mod_admin_login = false)
{
$username = !empty($args['login_username']) ? clean_username($args['login_username']) : '';
$password = !empty($args['login_password']) ? $args['login_password'] : '';
if ($username && $password) {
$username_sql = str_replace("\\'", "''", $username);
$password_sql = md5(md5($password));
$sql = "
SELECT *
FROM " . BB_USERS . "
WHERE username = '$username_sql'
AND user_password = '$password_sql'
AND user_active = 1
AND user_id != " . GUEST_UID . "
LIMIT 1
";
if ($userdata = DB()->fetch_row($sql)) {
if (!$userdata['username'] || !$userdata['user_password'] || $userdata['user_id'] == GUEST_UID || md5(md5($password)) !== $userdata['user_password'] || !$userdata['user_active']) {
trigger_error('invalid userdata', E_USER_ERROR);
}
// Start mod/admin session
if ($mod_admin_login) {
DB()->query("
UPDATE " . BB_SESSIONS . " SET
session_admin = " . $this->data['user_level'] . "
WHERE session_user_id = " . $this->data['user_id'] . "
AND session_id = '" . $this->data['session_id'] . "'
");
$this->data['session_admin'] = $this->data['user_level'];
cache_update_userdata($this->data);
return $this->data;
} elseif ($new_session_userdata = $this->session_create($userdata, false)) {
// Removing guest sessions from this IP
DB()->query("
DELETE FROM " . BB_SESSIONS . "
WHERE session_ip = '" . USER_IP . "'
AND session_user_id = " . GUEST_UID . "
");
return $new_session_userdata;
} else {
trigger_error("Could not start session : login", E_USER_ERROR);
}
}
}
return array();
}
/**
* Initialize sessiondata stored in cookies
*/
public function get_sessiondata()
{
$sd_resv = !empty($_COOKIE[COOKIE_DATA]) ? @unserialize($_COOKIE[COOKIE_DATA]) : array();
// autologin_id
if (!empty($sd_resv['uk']) && verify_id($sd_resv['uk'], LOGIN_KEY_LENGTH)) {
$this->sessiondata['uk'] = $sd_resv['uk'];
}
// user_id
if (!empty($sd_resv['uid'])) {
$this->sessiondata['uid'] = intval($sd_resv['uid']);
}
// sid
if (!empty($sd_resv['sid']) && verify_id($sd_resv['sid'], SID_LENGTH)) {
$this->sessiondata['sid'] = $sd_resv['sid'];
}
}
/**
* Store sessiondata in cookies
*/
public function set_session_cookies($user_id)
{
global $bb_cfg;
if ($user_id == GUEST_UID) {
$delete_cookies = array(
COOKIE_DATA,
COOKIE_DBG,
'torhelp',
'explain',
'sql_log',
'sql_log_full',
);
foreach ($delete_cookies as $cookie) {
if (isset($_COOKIE[$cookie])) {
bb_setcookie($cookie, '', COOKIE_EXPIRED);
}
}
} else {
$c_sdata_resv = !empty($_COOKIE[COOKIE_DATA]) ? $_COOKIE[COOKIE_DATA] : null;
$c_sdata_curr = ($this->sessiondata) ? serialize($this->sessiondata) : '';
if ($c_sdata_curr !== $c_sdata_resv) {
bb_setcookie(COOKIE_DATA, $c_sdata_curr, COOKIE_PERSIST, true);
}
if (isset($bb_cfg['dbg_users'][$this->data['user_id']]) && !isset($_COOKIE[COOKIE_DBG])) {
bb_setcookie(COOKIE_DBG, 1, COOKIE_SESSION);
}
}
}
/**
* Verify autologin_id
*/
public function verify_autologin_id($userdata, $expire_check = false, $create_new = true)
{
global $bb_cfg;
$autologin_id = $userdata['autologin_id'];
if ($expire_check) {
if ($create_new && !$autologin_id) {
return $this->create_autologin_id($userdata);
} elseif ($autologin_id && $userdata['user_session_time'] && $bb_cfg['max_autologin_time']) {
if (TIMENOW - $userdata['user_session_time'] > $bb_cfg['max_autologin_time'] * 86400) {
return $this->create_autologin_id($userdata, $create_new);
}
}
}
return verify_id($autologin_id, LOGIN_KEY_LENGTH);
}
/**
* Create autologin_id
*/
public function create_autologin_id($userdata, $create_new = true)
{
$autologin_id = ($create_new) ? make_rand_str(LOGIN_KEY_LENGTH) : '';
DB()->query("
UPDATE " . BB_USERS . " SET
autologin_id = '$autologin_id'
WHERE user_id = " . (int)$userdata['user_id'] . "
LIMIT 1
");
return $autologin_id;
}
/**
* Set shortcuts
*/
public function set_shortcuts()
{
$this->id =& $this->data['user_id'];
$this->active =& $this->data['user_active'];
$this->name =& $this->data['username'];
$this->lastvisit =& $this->data['user_lastvisit'];
$this->regdate =& $this->data['user_regdate'];
$this->level =& $this->data['user_level'];
$this->opt =& $this->data['user_opt'];
$this->ip = CLIENT_IP;
}
/**
* Initialise user settings
*/
public function init_userprefs()
{
global $bb_cfg, $theme, $lang, $DeltaTime;
if (defined('LANG_DIR')) {
return;
} // prevent multiple calling
define('DEFAULT_LANG_DIR', LANG_ROOT_DIR . $bb_cfg['default_lang'] . '/');
define('ENGLISH_LANG_DIR', LANG_ROOT_DIR . 'en/');
if ($this->data['user_id'] != GUEST_UID) {
if ($this->data['user_lang'] && $this->data['user_lang'] != $bb_cfg['default_lang']) {
$bb_cfg['default_lang'] = basename($this->data['user_lang']);
define('LANG_DIR', LANG_ROOT_DIR . $bb_cfg['default_lang'] . '/');
}
if (isset($this->data['user_timezone'])) {
$bb_cfg['board_timezone'] = $this->data['user_timezone'];
}
}
$this->data['user_lang'] = $bb_cfg['default_lang'];
$this->data['user_timezone'] = $bb_cfg['board_timezone'];
if (!defined('LANG_DIR')) {
define('LANG_DIR', DEFAULT_LANG_DIR);
}
require(LANG_DIR . 'main.php');
setlocale(LC_ALL, $bb_cfg['lang'][$this->data['user_lang']]['locale']);
$theme = setup_style();
$DeltaTime = new Date_Delta();
// Handle marking posts read
if (!IS_GUEST && !empty($_COOKIE[COOKIE_MARK])) {
$this->mark_read($_COOKIE[COOKIE_MARK]);
}
$this->load_opt_js();
$this->enqueue_ads();
}
/**
* Mark read
*/
public function mark_read($type)
{
if ($type === 'all_forums') {
// Update session time
DB()->query("
UPDATE " . BB_SESSIONS . " SET
session_time = " . TIMENOW . "
WHERE session_id = '{$this->data['session_id']}'
LIMIT 1
");
// Update userdata
$this->data['session_time'] = TIMENOW;
$this->data['user_lastvisit'] = TIMENOW;
// Update lastvisit
db_update_userdata($this->data, array(
'user_session_time' => $this->data['session_time'],
'user_lastvisit' => $this->data['user_lastvisit'],
));
// Delete cookies
bb_setcookie(COOKIE_TOPIC, '');
bb_setcookie(COOKIE_FORUM, '');
bb_setcookie(COOKIE_MARK, '');
}
}
/**
* Load misc options
*/
public function load_opt_js()
{
if (IS_GUEST) {
$this->opt_js = array_merge($this->opt_js, $this->opt_js_guest);
} elseif (!empty($_COOKIE['opt_js'])) {
$opt_js = Zend\Json\Json::decode($_COOKIE['opt_js'], Zend\Json\Json::TYPE_ARRAY);
if (is_array($opt_js)) {
$this->opt_js = array_merge($this->opt_js, $opt_js);
}
}
}
/**
* Get not auth forums
*/
public function get_not_auth_forums($auth_type)
{
global $datastore;
if (IS_ADMIN) {
return '';
}
if (!$forums = $datastore->get('cat_forums')) {
$datastore->update('cat_forums');
$forums = $datastore->get('cat_forums');
}
if ($auth_type == AUTH_VIEW) {
if (IS_GUEST) {
return $forums['not_auth_forums']['guest_view'];
}
}
if ($auth_type == AUTH_READ) {
if (IS_GUEST) {
return $forums['not_auth_forums']['guest_read'];
}
}
$auth_field_match = array(
AUTH_VIEW => 'auth_view',
AUTH_READ => 'auth_read',
AUTH_POST => 'auth_post',
AUTH_REPLY => 'auth_reply',
AUTH_EDIT => 'auth_edit',
AUTH_DELETE => 'auth_delete',
AUTH_STICKY => 'auth_sticky',
AUTH_ANNOUNCE => 'auth_announce',
AUTH_VOTE => 'auth_vote',
AUTH_POLLCREATE => 'auth_pollcreate',
AUTH_ATTACH => 'auth_attachments',
AUTH_DOWNLOAD => 'auth_download',
);
$not_auth_forums = array();
$auth_field = $auth_field_match[$auth_type];
$is_auth_ary = auth($auth_type, AUTH_LIST_ALL, $this->data);
foreach ($is_auth_ary as $forum_id => $is_auth) {
if (!$is_auth[$auth_field]) {
$not_auth_forums[] = $forum_id;
}
}
return join(',', $not_auth_forums);
}
/**
* Get excluded forums
*/
public function get_excluded_forums($auth_type, $return_as = 'csv')
{
$excluded = array();
if ($not_auth = $this->get_not_auth_forums($auth_type)) {
$excluded[] = $not_auth;
}
if (bf($this->opt, 'user_opt', 'user_porn_forums')) {
global $datastore;
if (!$forums = $datastore->get('cat_forums')) {
$datastore->update('cat_forums');
$forums = $datastore->get('cat_forums');
}
if (isset($forums['forum'])) {
foreach ($forums['forum'] as $key => $row) {
if ($row['allow_porno_topic']) {
$excluded[] = $row['forum_id'];
}
}
}
}
switch ($return_as) {
case 'csv':
return join(',', $excluded);
case 'array':
return $excluded;
case 'flip':
return array_flip(explode(',', $excluded));
}
}
/**
* Enqueue ads
*/
public function enqueue_ads()
{
global $datastore, $bb_cfg;
if ($bb_cfg['show_ads'] && !bf($this->opt, 'user_opt', 'user_hide_ads') && !defined('IN_ADMIN') && !defined('IN_AJAX')) {
$datastore->enqueue('ads');
$this->show_ads = true;
}
}
}
//
// userdata cache
//
function ignore_cached_userdata()
{
return (defined('IN_PM')) ? true : false;
}
function cache_get_userdata($id)
{
if (ignore_cached_userdata()) {
return false;
}
return CACHE('session_cache')->get($id);
}
function cache_set_userdata($userdata, $force = false)
{
global $bb_cfg;
if (!$userdata || (ignore_cached_userdata() && !$force)) {
return false;
}
$id = ($userdata['user_id'] == GUEST_UID) ? $userdata['session_ip'] : $userdata['session_id'];
return CACHE('session_cache')->set($id, $userdata, $bb_cfg['session_update_intrv']);
}
function cache_rm_userdata($userdata)
{
if (!$userdata) {
return false;
}
$id = ($userdata['user_id'] == GUEST_UID) ? $userdata['session_ip'] : $userdata['session_id'];
return CACHE('session_cache')->rm($id);
}
// $user_id - array(id1,id2,..) or (string) id
function cache_rm_user_sessions($user_id)
{
$user_id = get_id_csv($user_id);
$rowset = DB()->fetch_rowset("
SELECT session_id FROM " . BB_SESSIONS . " WHERE session_user_id IN($user_id)
");
foreach ($rowset as $row) {
CACHE('session_cache')->rm($row['session_id']);
}
}
function cache_update_userdata($userdata)
{
return cache_set_userdata($userdata, true);
}
function db_update_userdata($userdata, $sql_ary, $data_already_escaped = true)
{
if (!$userdata) {
return false;
}
$sql_args = DB()->build_array('UPDATE', $sql_ary, $data_already_escaped);
DB()->query("UPDATE " . BB_USERS . " SET $sql_args WHERE user_id = {$userdata['user_id']}");
if (DB()->affected_rows()) {
cache_rm_userdata($userdata);
}
}
// $user_id - array(id1,id2,..) or (string) id
function delete_user_sessions($user_id)
{
cache_rm_user_sessions($user_id);
$user_id = get_id_csv($user_id);
DB()->query("DELETE FROM " . BB_SESSIONS . " WHERE session_user_id IN($user_id)");
}
// deprecated
function session_begin($userdata, $page_id = 0, $enable_autologin = false, $auto_created = false)
{
global $user;
$user->session_create($userdata, $auto_created);
return $user->data;
}
// deprecated
function session_pagestart($user_ip = USER_IP, $page_id = 0, $req_login = false)
{
global $user;
$user->session_start(array('req_login' => $req_login));
return $user->data;
}