/
access.php
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/
access.php
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<?php
/**
* @version $Id$
* Kunena Component
* @package Kunena
*
* @Copyright (C) 2008 - 2011 Kunena Team. All rights reserved.
* @license http://www.gnu.org/copyleft/gpl.html GNU/GPL
* @link http://www.kunena.org
*
**/
//
// Dont allow direct linking
defined ( '_JEXEC' ) or die ( '' );
require_once KPATH_ADMIN . '/libraries/integration/integration.php';
kimport ( 'error' );
kimport ( 'category' );
kimport ( 'joomla.database.databasequery' );
abstract class KunenaAccess {
public $priority = 0;
protected static $instance = false;
protected $adminsByCatid = false;
protected $adminsByUserid = false;
protected $moderatorsByCatid = false;
protected $moderatorsByUserid = false;
abstract public function __construct();
static public function getInstance($integration = null) {
if (self::$instance === false) {
$config = KunenaFactory::getConfig ();
if (! $integration)
$integration = $config->integration_access;
self::$instance = KunenaIntegration::initialize ( 'access', $integration );
}
return self::$instance;
}
public function clearCache() {
$this->adminsByCatid = false;
$this->adminsByUserid = false;
$this->moderatorsByCatid = false;
$this->moderatorsByUserid = false;
$db = JFactory::getDBO ();
$db->setQuery ( "UPDATE #__kunena_sessions SET allowed='na'" );
$db->query ();
KunenaError::checkDatabaseError();
}
public function getAccessLevelsList($category) {
if ($category->accesstype == 'none' || $category->accesstype == 'joomla.level')
return JHTML::_('list.accesslevel', $category);
return $category->access;
}
public function getAccessTypesList($category) {
static $enabled = false;
if ($category->accesstype == 'none' || $category->accesstype == 'joomla.level') {
if (!$enabled) {
$enabled = true;
$document = JFactory::getDocument();
$document->addScriptDeclaration("function kShowAccessType(htmlclass, el) {
var selected = el.getChildren().filter(function(option){ return option.selected; });
var name = selected[0].value;
name = name.replace(/[^\\w\\d]+/, '-');
$$('.'+htmlclass).each(function(e){
e.setStyle('display', 'none');
});
$$('.'+htmlclass+'-'+name).each(function(e){
e.setStyle('display', '');
});
}
window.addEvent('domready', function(){
kShowAccessType('kaccess', $('accesstype'));
});");
}
$accesstypes = array ();
$accesstypes [] = JHTML::_ ( 'select.option', 'joomla.level', JText::_('COM_KUNENA_INTEGRATION_JOOMLA_LEVEL') );
$accesstypes [] = JHTML::_ ( 'select.option', 'none', JText::_('COM_KUNENA_INTEGRATION_JOOMLA_GROUP') );
return JHTML::_ ( 'select.genericlist', $accesstypes, 'accesstype', 'class="inputbox" size="2" onchange="javascript:kShowAccessType(\'kaccess\', $(this))"', 'value', 'text', $category->accesstype );
}
return JText::_('COM_KUNENA_INTEGRATION_'.strtoupper(preg_replace('/[^\w\d]+/', '_', $category->accesstype)));
}
public function getAdmins($catid = 0) {
if ($this->adminsByCatid === false) {
$this->loadAdmins();
}
return !empty($this->adminsByCatid[$catid]) ? $this->adminsByCatid[$catid] : array();
}
public function getModerators($catid = 0) {
if ($this->moderatorsByCatid === false) {
$this->loadModerators();
}
return !empty($this->moderatorsByCatid[$catid]) ? $this->moderatorsByCatid[$catid] : array();
}
public function isAdmin($user = null, $catid = 0) {
$user = KunenaFactory::getUser($user);
// Visitors cannot be administrators
if (!$user->exists()) return false;
// In backend every logged in user has global admin rights (for now)
if (JFactory::getApplication()->isAdmin() && $user->userid == KunenaFactory::getUser()->userid)
return true;
// Load administrators list
if ($this->adminsByUserid === false) {
$this->loadAdmins();
}
// If $catid is not numeric: Is user administrator in ANY category?
if (!is_numeric($catid)) return !empty($this->adminsByUserid[$user->userid]);
// Is user a global administrator?
if (!empty($this->adminsByUserid[$user->userid][0])) return true;
// Is user a category administrator?
if (!empty($this->adminsByUserid[$user->userid][$catid])) return true;
return false;
}
public function isModerator($user = null, $catid = 0) {
$user = KunenaFactory::getUser($user);
// Visitors cannot be moderators
if (!$user->exists()) return false;
// Administrators are always moderators
if ($this->isAdmin($user, $catid)) return true;
// Load moderators list
if ($this->moderatorsByUserid === false) {
$this->loadModerators();
}
if (isset($this->moderatorsByUserid[$user->userid])) {
// Is user a global moderator?
if (!empty($this->moderatorsByUserid[$user->userid][0])) return true;
// Were we looking only for global moderator?
if (!is_numeric($catid)) return false;
// Is user moderator in ANY category?
if ($catid == 0) return true;
// Is user a category moderator?
if (!empty($this->moderatorsByUserid[$user->userid][$catid])) return true;
}
return false;
}
public function getAllowedCategories($user = null, $rule = 'read') {
static $read = false;
$user = KunenaFactory::getUser($user);
$allowed = array();
switch ($rule) {
case 'read':
case 'post':
case 'reply':
case 'edit':
if ($read === false) {
$read = $this->loadAllowedCategories($user->userid);
}
$allowed = $read;
break;
case 'moderate':
if ($this->moderatorsByUserid === false) {
$this->loadModerators();
}
if (isset($this->moderatorsByUserid[$user->userid])) $allowed += $this->moderatorsByUserid[$user->userid];
// Continue: Administrators have also moderation permissions
case 'admin':
if ($this->adminsByUserid === false) {
$this->loadAdmins();
}
if (isset($this->adminsByUserid[$user->userid])) $allowed += $this->adminsByUserid[$user->userid];
}
return $allowed;
}
public function getAllowedHold($user, $catid, $string=true) {
// hold = 0: normal
// hold = 1: unapproved
// hold = 2: deleted
$user = KunenaFactory::getUser($user);
$config = KunenaFactory::getConfig ();
$hold [0] = 0;
if ($this->isModerator ( $user->userid, $catid )) {
$hold [1] = 1;
}
if (($config->mod_see_deleted == '0' && $this->isAdmin ( $user->userid, $catid ))
|| ($config->mod_see_deleted == '1' && $this->isModerator( $user->userid, $catid ))) {
$hold [2] = 2;
$hold [3] = 3;
}
if ($string) $hold = implode ( ',', $hold );
return $hold;
}
function getSubscribers($catid, $topicid, $subscriptions = false, $moderators = false, $admins = false, $excludeList = null) {
if ($subscriptions) {
$subslist = $this->loadSubscribers($catid, $topicid, (int)$subscriptions);
}
if ($moderators) {
if ($this->moderatorsByCatid === false) {
$this->loadModerators();
}
$modlist = array();
if (!empty($this->moderatorsByCatid[0])) $modlist += $this->moderatorsByCatid[0];
if (!empty($this->moderatorsByCatid[$catid])) $modlist += $this->moderatorsByCatid[$catid];
}
if ($admins) {
if ($this->adminsByCatid === false) {
$this->loadAdmins();
}
$adminlist = array();
if (!empty($this->adminsByCatid[0])) $adminlist += $this->adminsByCatid[0];
if (!empty($this->adminsByCatid[$catid])) $adminlist += $this->adminsByCatid[$catid];
}
$query = new KunenaDatabaseQuery();
$query->select('u.id, u.name, u.username, u.email');
$query->from('#__users AS u');
$query->where("u.block=0");
$userlist = array();
if (!empty($subslist)) {
$userlist = $subslist;
$subslist = implode(',', array_keys($subslist));
$query->select("IF( u.id IN ({$subslist}), 1, 0 ) AS subscription");
} else {
$query->select("0 AS subscription");
}
if (!empty($modlist)) {
$userlist += $modlist;
$modlist = implode(',', array_keys($modlist));
$query->select("IF( u.id IN ({$modlist}), 1, 0 ) AS moderator");
} else {
$query->select("0 AS moderator");
}
if (!empty($adminlist)) {
$userlist += $adminlist;
$adminlist = implode(',', array_keys($adminlist));
$query->select("IF( u.id IN ({$adminlist}), 1, 0 ) AS admin");
} else {
$query->select("0 AS admin");
}
if (empty($excludeList)) {
// false, null, '', 0 and array(): get all subscribers
$excludeList = array();
} elseif (is_array($excludeList)) {
// array() needs to be flipped to get userids into keys
$excludeList = array_flip($excludeList);
} else {
// Others: let's assume that we have comma separated list of values (string)
$excludeList = array_flip(explode(',', (string) $excludeList));
}
$userlist = array_diff_key($userlist, $excludeList);
$userids = array();
if (!empty($userlist)) {
$userlist = implode(',', array_keys($userlist));
$query->where("u.id IN ({$userlist})");
$db = JFactory::getDBO();
$db->setQuery ( $query );
$userids = (array) $db->loadObjectList ();
KunenaError::checkDatabaseError();
}
return $userids;
}
protected function loadAdmins($list = array()) {
$this->adminsByUserid = array();
$this->adminsByCatid = array();
foreach ( $list as $item ) {
$userid = intval ( $item->userid );
$catid = intval ( $item->catid );
$this->adminsByUserid [$userid] [$catid] = 1;
$this->adminsByCatid [$catid] [$userid] = 1;
}
return $list;
}
protected function loadModerators($list = array()) {
$this->moderatorsByUserid = array();
$this->moderatorsByCatid = array();
foreach ( $list as $item ) {
$userid = intval ( $item->userid );
$catid = intval ( $item->catid );
$this->moderatorsByUserid [$userid] [$catid] = 1;
$this->moderatorsByCatid [$catid] [$userid] = 1;
}
return $list;
}
protected function &loadSubscribers($catid, $topicid, $subsriptions) {
$category = KunenaCategory::getInstance($catid);
$db = JFactory::getDBO ();
$query = array();
if ($subsriptions == 1 || $subsriptions == 2) {
// Get topic subscriptions
$once = KunenaFactory::getConfig()->topic_subscriptions == 'first' ? 'AND future1=0' : '';
$query[] = "SELECT userid AS user_id FROM #__kunena_subscriptions WHERE thread={$topicid} {$once}";
}
if ($subsriptions == 1 || $subsriptions == 3) {
// Get category subscriptions
$query[] = "SELECT userid AS user_id FROM #__kunena_subscriptions_categories WHERE catid={$catid}";
}
$query = implode(' UNION ', $query);
$db->setQuery ($query);
$userids = (array) $db->loadResultArray();
KunenaError::checkDatabaseError();
if (!empty($userids)) {
$this->checkSubscribers($category, $userids);
}
if (!empty($userids)) {
$userids = (array) array_combine ($userids, $userids);
}
return $userids;
}
abstract protected function checkSubscribers($topic, &$userids);
abstract protected function loadAllowedCategories($userid);
}