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<?php
/**
* Kunena Component
* @package Kunena.Framework
* @subpackage User
*
* @copyright (C) 2008 - 2014 Kunena Team. All rights reserved.
* @license http://www.gnu.org/copyleft/gpl.html GNU/GPL
* @link http://www.kunena.org
**/
defined ( '_JEXEC' ) or die ();
jimport ('joomla.utilities.date');
/**
* Class KunenaUserBan
*/
class KunenaUserBan extends JObject
{
/**
* @var array|KunenaUserBan[]
*/
protected static $_instances = array();
protected static $_instancesByUserid = array();
protected static $_instancesByIP = array();
protected static $_useridcache = array();
protected static $_now = null;
protected static $_my = null;
protected $_db = null;
protected $_exists = false;
const ANY = 0;
const ACTIVE = 1;
/**
* Constructor
*
* @access protected
*/
public function __construct($identifier = null)
{
if (self::$_now === null) {
self::$_now = new JDate();
}
if (self::$_my === null) {
self::$_my = JFactory::getUser();
}
// Always load the data -- if item does not exist: fill empty data
$this->load($identifier);
$this->_db = JFactory::getDBO ();
}
public function getUser() {
return KunenaUserHelper::get((int) $this->userid);
}
public function getCreator() {
return KunenaUserHelper::get((int) $this->created_by);
}
public function getModifier() {
return KunenaUserHelper::get((int) $this->modified_by);
}
/**
* @param KunenaUserBan $instance
*/
private static function storeInstance($instance) {
// Fill userid cache
self::cacheUserid($instance->userid);
self::cacheUserid($instance->created_by);
self::cacheUserid($instance->modified_by);
foreach ($instance->comments as $comment) {
self::cacheUserid($comment->userid);
}
if ($instance->id) self::$_instances[$instance->id] = $instance;
if ($instance->userid && ($instance->isEnabled() || !$instance->id)) {
self::$_instancesByUserid[$instance->userid] = $instance;
}
if ($instance->ip && ($instance->isEnabled() || !$instance->id)) {
self::$_instancesByIP[$instance->ip] = $instance;
}
}
private static function cacheUserid($userid) {
if ($userid > 0) self::$_useridcache[$userid] = $userid;
}
/**
* Returns the global KunenaUserBan object, only creating it if it doesn't already exist.
*
* @access public
* @param int $identifier The ban object to be loaded
* @return KunenaUserBan The ban object.
* @since 1.6
*/
public static function getInstance($identifier = null)
{
$c = __CLASS__;
if (intval($identifier) < 1)
return new $c();
if (!isset(self::$_instances[$identifier])) {
$instance = new $c($identifier);
self::storeInstance($instance);
}
return isset(self::$_instances[$identifier]) ? self::$_instances[$identifier] : null;
}
/**
* Returns the global KunenaUserBan object, only creating it if it doesn't already exist.
*
* @access public
* @param int $identifier The ban object to be loaded
* @param bool $create
* @return KunenaUserBan The ban object.
* @since 1.6
*/
public static function getInstanceByUserid($identifier = null, $create = false)
{
$c = __CLASS__;
if (intval($identifier) < 1)
return new $c();
if (!isset(self::$_instancesByUserid[$identifier])) {
$instance = new $c();
$instance->loadByUserid($identifier);
self::storeInstance($instance);
}
return $create || !empty(self::$_instancesByUserid[$identifier]->id) ? self::$_instancesByUserid[$identifier] : null;
}
/**
* Returns the global KunenaUserBan object, only creating it if it doesn't already exist.
*
* @access public
* @param int $identifier The ban object to be loaded
* @param bool $create
* @return KunenaUserBan The ban object.
* @since 1.6
*/
public static function getInstanceByIP($identifier = null, $create = false)
{
$c = __CLASS__;
if (empty($identifier))
return new $c();
if (!isset(self::$_instancesByIP[$identifier])) {
$instance = new $c();
$instance->loadByIP($identifier);
self::storeInstance($instance);
}
return $create || !empty(self::$_instancesByIP[$identifier]->id) ? self::$_instancesByIP[$identifier] : null;
}
public static function getBannedUsers($start=0, $limit=50) {
$c = __CLASS__;
$db = JFactory::getDBO ();
$now = new JDate();
$query = "SELECT b.*
FROM #__kunena_users_banned AS b
INNER JOIN #__users AS u ON u.id=b.userid
WHERE (b.expiration = {$db->quote($db->getNullDate())} OR b.expiration > {$db->quote($now->toSql())})
ORDER BY b.created_time DESC";
$db->setQuery ( $query, $start, $limit );
$results = $db->loadAssocList ();
KunenaError::checkDatabaseError();
$list = array();
foreach ($results as $ban) {
$instance = new $c();
$instance->bind($ban);
$instance->_exists = true;
self::storeInstance($instance);
$list[$instance->userid] = $instance;
}
return $list;
}
public static function getUserHistory($userid) {
if (!$userid) return array();
$c = __CLASS__;
$db = JFactory::getDBO ();
$query = "SELECT *
FROM #__kunena_users_banned
WHERE `userid`={$db->quote($userid)}
ORDER BY id DESC";
$db->setQuery ( $query );
$results = $db->loadAssocList ();
KunenaError::checkDatabaseError();
$list = array();
foreach ($results as $ban) {
$instance = new $c();
$instance->bind($ban);
$instance->_exists = true;
self::storeInstance($instance);
$list[] = $instance;
}
return $list;
}
public function exists() {
return $this->_exists;
}
/**
* Method to get the ban table object
*
* This function uses a static variable to store the table name of the user table to
* it instantiates. You can call this function statically to set the table name if
* needed.
*
* @access public
* @param string $type The user table name to be used
* @param string $prefix The user table prefix to be used
* @return object The user table object
* @since 1.6
*/
public function getTable($type = 'KunenaUserBans', $prefix = 'Table')
{
static $tabletype = null;
//Set a custom table type is defined
if ($tabletype === null || $type != $tabletype['name'] || $prefix != $tabletype['prefix']) {
$tabletype['name'] = $type;
$tabletype['prefix'] = $prefix;
}
// Create the user table object
return JTable::getInstance($tabletype['name'], $tabletype['prefix']);
}
protected function bind($data)
{
$this->setProperties($data);
$this->comments = !empty($this->comments) ? json_decode($this->comments) : array();
$this->params = !empty($this->params) ? json_decode($this->params) : array();
}
/**
* Method to load a KunenaUserBan object by ban id
*
* @access public
* @param int $id The ban id of the item to load
* @return boolean True on success
* @since 1.6
*/
public function load($id)
{
// Create the user table object
$table = $this->getTable();
// Load the KunenaTableUser object based on the user id
$exists = $table->load($id);
$this->bind($table->getProperties());
$this->_exists = $exists;
return $exists;
}
/**
* Method to load a KunenaUserBan object by user id
*
* @access public
* @param int $userid The user id of the user to load
* @param int $mode KunenaUserBan::ANY or KunenaUserBan::ACTIVE
* @return boolean True on success
* @since 1.6
*/
public function loadByUserid($userid, $mode = self::ACTIVE)
{
// Create the user table object
$table = $this->getTable();
// Load the KunenaTableUser object based on the user id
$exists = $table->loadByUserid($userid, $mode);
$this->bind($table->getProperties());
$this->_exists = $exists;
return $exists;
}
/**
* Method to load a KunenaUserBan object by user id
*
* @access public
* @param string $ip
* @param int $mode KunenaUserBan::ANY or KunenaUserBan::ACTIVE
* @return boolean True on success
* @since 1.6
*/
public function loadByIP($ip, $mode = self::ACTIVE)
{
// Create the user table object
$table = $this->getTable();
// Load the KunenaTableUser object based on the user id
$exists = $table->loadByIP($ip, $mode);
$this->bind($table->getProperties());
$this->_exists = $exists;
return $exists;
}
public function setReason($public=null, $private=null) {
$set = false;
if ($public !== null && $public != $this->reason_public) {
$this->reason_public = (string) $public;
$set = true;
}
if ($private !== null && $private != $this->reason_private) {
$this->reason_private = (string) $private;
$set = true;
}
if ($this->_exists && $set) {
$this->modified_time = self::$_now->toSql();
$this->modified_by = self::$_my->id;
}
}
public function canBan() {
$userid = $this->userid;
$me = KunenaUserHelper::getMyself();
$user = KunenaUserHelper::get($userid);
if (!$me->isModerator()) {
$this->setError(JText::_('COM_KUNENA_MODERATION_ERROR_NOT_MODERATOR'));
return false;
}
if (!$user->exists()) {
$this->setError( JText::_( 'COM_KUNENA_LIB_USER_BAN_ERROR_NOT_USER', $userid ));
return false;
}
if ($userid == $me->userid) {
$this->setError( JText::_( 'COM_KUNENA_LIB_USER_BAN_ERROR_YOURSELF' ));
return false;
}
if ($user->isAdmin()) {
$this->setError(JText::sprintf( 'COM_KUNENA_LIB_USER_BAN_ERROR_ADMIN', $user->getName() ));
return false;
}
if ($user->isModerator()) {
$this->setError(JText::sprintf( 'COM_KUNENA_LIB_USER_BAN_ERROR_MODERATOR', $user->getName() ));
return false;
}
return true;
}
public function isEnabled() {
if ($this->isLifetime()) return true;
$expiration = new JDate($this->expiration);
if ($expiration->toUnix() > self::$_now->toUnix()) return true;
return false;
}
public function isLifetime() {
return $this->expiration == $this->_db->getNullDate();
}
public function addComment($comment) {
if (is_string($comment) && !empty($comment)) {
$c = new stdClass();
$c->userid = self::$_my->id;
$c->time = self::$_now->toSql();
$c->comment = $comment;
$this->comments[] = $c;
}
}
public function setExpiration($expiration, $comment = '') {
// Cannot change expiration if ban is not enabled
if (!$this->isEnabled() && $this->id) return;
if (!$expiration || $expiration == $this->_db->getNullDate()) {
$this->expiration = $this->_db->getNullDate();
} else {
$date = new JDate($expiration);
$this->expiration = $date->toUnix() > self::$_now->toUnix() ? $date->toSql() : self::$_now->toSql();
}
if ($this->_exists) {
$this->modified_time = self::$_now->toSql();
$this->modified_by = self::$_my->id;
}
$this->addComment($comment);
}
public function ban($userid=null, $ip=null, $block=0, $expiration=null, $reason_private='', $reason_public='', $comment='') {
$this->userid = intval($userid) > 0 ? (int)$userid : null;
$this->ip = $ip ? (string)$ip : null;
$this->blocked = (int)$block;
$this->setExpiration($expiration);
$this->reason_private = (string)$reason_private;
$this->reason_public = (string)$reason_public;
$this->addComment($comment);
}
public function unBan($comment = '') {
// Cannot change expiration if ban is not enabled
if (!$this->isEnabled()) return;
$this->expiration = self::$_now->toSql();
$this->modified_time = self::$_now->toSql();
$this->modified_by = self::$_my->id;
$this->addComment($comment);
}
/**
* Method to save the KunenaUserBan object to the database
*
* @access public
* @param boolean $updateOnly Save the object only if not a new ban
* @return boolean True on success
* @since 1.6
*/
public function save($updateOnly = false)
{
if (!$this->canBan()) {
return false;
}
if (!$this->id) {
// If we have new ban, add creation date and user if they do not exist
if (!$this->created_time) {
$now = new JDate();
$this->created_time = $now->toSql();
}
if (!$this->created_by) {
$my = JFactory::getUser();
$this->created_by = $my->id;
}
}
// Create the user table object
$table = $this->getTable();
$table->bind($this->getProperties());
// Check and store the object.
if (!$table->check()) {
$this->setError($table->getError());
return false;
}
//are we creating a new ban
$isnew = !$this->_exists;
// If we aren't allowed to create new ban, return
if ($isnew && $updateOnly) {
return true;
}
if ($this->userid) {
// Change user block also in Joomla
$user = JFactory::getUser($this->userid);
if (!$user) {
$this->setError("User {$this->userid} does not exist!");
return false;
}
$block = 0;
if ($this->isEnabled()) $block = $this->blocked;
if ($user->block != $block) {
$user->block = $block;
$user->save();
}
// Change user state also in #__kunena_users
$profile = KunenaFactory::getUser($this->userid);
$profile->banned = $this->expiration;
$profile->save(true);
if ($block) {
// Logout blocked user
$app = JFactory::getApplication ();
$options = array();
$options['clientid'][] = 0; // site
$app->logout( (int) $this->userid, $options);
}
}
//Store the ban data in the database
$result = $table->store();
if (!$result) {
$this->setError($table->getError());
}
// Set the id for the KunenaUserBan object in case we created a new ban.
if ($result && $isnew) {
$this->load($table->get('id'));
self::storeInstance($this);
}
return $result;
}
/**
* Method to delete the KunenaUserBan object from the database
*
* @access public
* @return boolean True on success
* @since 1.6
*/
public function delete()
{
// Create the user table object
$table = $this->getTable();
$result = $table->delete($this->id);
if (!$result) {
$this->setError($table->getError());
}
return $result;
}
}