function getMembersData(&$params)
 {
     $model = CFactory::getModel('user');
     $db = JFactory::getDBO();
     $limit = $params->get('count', '5');
     $query = 'SELECT ' . $db->quoteName('userid') . ' FROM ' . $db->quoteName('#__community_users') . ' AS a ' . ' INNER JOIN ' . $db->quoteName('#__users') . ' AS b ON a.' . $db->quoteName('userid') . '=b.' . $db->quoteName('id') . ' WHERE ' . $db->quoteName('thumb') . '!=' . $db->Quote('components/com_community/assets/default_thumb.jpg') . ' ' . ' AND ' . $db->quoteName('block') . '=' . $db->Quote(0) . ' ' . ' ORDER BY ' . $db->quoteName('points') . ' DESC ' . ' LIMIT ' . $limit;
     $db->setQuery($query);
     $row = $db->loadObjectList();
     if ($db->getErrorNum()) {
         JError::raiseError(500, $db->stderr());
     }
     $_members = array();
     if (!empty($row)) {
         foreach ($row as $data) {
             $user = CFactory::getUser($data->userid);
             $_obj = new stdClass();
             $_obj->id = $data->userid;
             $_obj->name = $user->getDisplayName();
             $_obj->avatar = $user->getThumbAvatar();
             $CUserPoints = new CUserPoints();
             $_obj->karma = $CUserPoints->getPointsImage($user);
             $_obj->userpoints = $user->_points;
             $_obj->link = CRoute::_('index.php?option=com_community&view=profile&userid=' . $data->userid);
             $_members[] = $_obj;
         }
     }
     return $_members;
 }

 function deletegroupmembers($data)
 {
     require_once JPATH_SITE . '/components/com_community/libraries/core.php';
     CFactory::load('libraries', 'apps');
     $error_messages = array();
     $success_messages = array();
     $response = NULL;
     $validated = true;
     if ("" == $data['groupid'] || 0 == $data['groupid']) {
         $validated = false;
         $error_messages[] = array("id" => 1, "fieldname" => "groupid", "message" => "Groupid cannot be blank");
     }
     if (false == array_key_exists('memberids', $data) || 0 == sizeof($data['memberids'])) {
         $validated = false;
         $error_messages[] = array("id" => 1, "fieldname" => "memberids", "message" => "Memberids cannot be blank");
     }
     if (true == $validated) {
         $model =& CFactory::getModel('groups');
         $group =& JTable::getInstance('Group', 'CTable');
         $group->id = $data['groupid'];
         $group->ownerid = $data['ownerid'];
     }
     if ($data['ownerid'] == $data['memberids']) {
         $validated = false;
         $error_messages[] = array("id" => 1, "fieldname" => "ownerid/memberid", "message" => "owner id and member id are same.please update 'ownwrid or memberid' fields in request");
     } else {
         $groupMember =& JTable::getInstance('GroupMembers', 'CTable');
         $memberId = $data['memberids'];
         $groupId = $data['groupid'];
         $groupMember->load($memberId, $groupId);
         $data = new stdClass();
         $data->groupid = $groupId;
         $data->memberid = $memberId;
         $data = new stdClass();
         $data->groupid = $groupId;
         $data->memberid = $memberId;
         $model->removeMember($data);
         $db =& JFactory::getDBO();
         $query = 'SELECT COUNT(1) FROM ' . $db->nameQuote('#__community_groups_members') . ' ' . 'WHERE groupid=' . $db->Quote($groupId) . ' ' . 'AND approved=' . $db->Quote('1');
         $db->setQuery($query);
         $membercount = $db->loadResult();
         $members = new stdClass();
         $members->id = $groupId;
         $members->membercount = $membercount;
         $db->updateObject('#__community_groups', $members, 'id');
         //add user points
         CFactory::load('libraries', 'userpoints');
         CUserPoints::assignPoint('group.member.remove', $memberId);
     }
     if (true == isset($error_messages) && 0 < sizeof($error_messages)) {
         $res = array();
         foreach ($error_messages as $key => $error_message) {
             $res[] = $error_message;
         }
         $response = array("id" => 0, 'errors' => $res);
     } else {
         $response = array('id' => $memberId);
     }
     return $response;
 }

 /**
  * remove friend
  */
 public function removeFriend($friendid)
 {
     $mainframe =& JFactory::getApplication();
     $model = CFactory::getModel('friends');
     $my = CFactory::getUser();
     $viewName = JRequest::getVar('view', '', 'GET');
     $view = CFactory::getView($viewName);
     if ($model->deleteFriend($my->id, $friendid)) {
         // Substract the friend count
         $model->updateFriendCount($my->id);
         $model->updateFriendCount($friendid);
         //add user points
         // we deduct poinst to both parties
         CFactory::load('libraries', 'userpoints');
         CUserPoints::assignPoint('friends.remove');
         CUserPoints::assignPoint('friends.remove', $friendid);
         $friend = CFactory::getUser($friendId);
         $view->addInfo(JText::sprintf('COM_COMMUNITY_FRIENDS_REMOVED', $friend->getDisplayName()));
         //@todo notify friend after remove them from our friend list
         //trigger for onFriendRemove
         $eventObject = new stdClass();
         $eventObject->profileOwnerId = $my->id;
         $eventObject->friendId = $friendid;
         $this->_triggerFriendEvents('onFriendRemove', $eventObject);
         unset($eventObject);
     } else {
         $view->addinfo(JText::_('COM_COMMUNITY_FRIENDS_REMOVING_FRIEND_ERROR'));
     }
 }

 function deletewallpost($data)
 {
     require_once JPATH_SITE . '/components/com_community/libraries/core.php';
     $error_messages = array();
     $response = NULL;
     $validated = true;
     $db =& JFactory::getDBO();
     if ($data['wall_id'] == "" || $data['wall_id'] == "0") {
         $validated = false;
         $error_messages[] = array("id" => 1, "fieldname" => "wallid", "message" => "Wall id cannot be blank");
     }
     //@rule: Check if user is really allowed to remove the current wall
     $my = CFactory::getUser();
     $model =& CFactory::getModel('wall');
     $wall = $model->get($data['wall_id']);
     $groupModel =& CFactory::getModel('groups');
     $group =& JTable::getInstance('Group', 'CTable');
     $group->load($wall->contentid);
     $query = "SELECT contentid FROM #__community_wall WHERE id ='" . $data['wall_id'] . "' AND type = 'groups'";
     $db->setQuery($query);
     $contentid = $db->LoadResult();
     CFactory::load('helpers', 'owner');
     $query = "SELECT id FROM #__community_wall WHERE id ='" . $data['wall_id'] . "' AND type = 'groups'";
     $db->setQuery($query);
     $isdiscussion = $db->LoadResult();
     if (!$isdiscussion) {
         $error_messages[] = array("id" => 1, "fieldname" => "wallid", "message" => "wall id for type groups does not exists. Modify the wall_id field");
     } else {
         if (!$model->deletePost($data['wall_id'])) {
             $validated = false;
             //$error_messages[] = 'wall id does not exists. Modify the wall_id fields in request';
             $error_messages[] = array("id" => 1, "fieldname" => "wallid", "message" => "wall id does not exists. Modify the wall_id field");
         } else {
             if ($wall->post_by != 0) {
                 //add user points
                 CFactory::load('libraries', 'userpoints');
                 CUserPoints::assignPoint('wall.remove', $wall->post_by);
             }
         }
         //$groupModel->substractWallCount( $data['wall_id'] );
         // Substract the count
         $query = 'SELECT COUNT(*) FROM ' . $db->nameQuote('#__community_wall') . ' ' . 'WHERE contentid=' . $db->Quote($contentid) . ' ' . 'AND type="groups"';
         $db->setQuery($query);
         $wall_count = $db->loadResult();
         $wallcount = new stdClass();
         $wallcount->id = $contentid;
         $wallcount->wallcount = $wall_count;
         $db->updateObject('#__community_groups', $wallcount, 'id');
     }
     if (true == isset($error_messages) && 0 < sizeof($error_messages)) {
         $res = array();
         foreach ($error_messages as $key => $error_message) {
             $res[] = $error_message;
         }
         $response = array("id" => 0, 'errors' => $res);
     } else {
         $response = array('id' => $wall->id);
     }
     return $response;
 }

 public function onAfterThankyou($target, $actor, $message)
 {
     CFactory::load('libraries', 'userpoints');
     CUserPoints::assignPoint('com_kunena.thread.thankyou', $target);
     $username = KunenaFactory::getUser($actor)->username;
     $act = new stdClass();
     $act->cmd = 'wall.write';
     $act->actor = JFactory::getUser()->id;
     $act->target = $target;
     $act->title = JText::_('{single}{actor}{/single}{multiple}{actors}{/multiple} ' . JText::sprintf('PLG_KUNENA_COMMUNITY_ACTIVITY_THANKYOU_TITLE', $username));
     $act->content = NULL;
     $act->app = 'kunena.thankyou';
     $act->cid = $target;
     $act->access = $this->getAccess($message->getCategory());
     // Comments and like support
     $act->comment_id = $target;
     $act->comment_type = 'kunena.thankyou';
     $act->like_id = $target;
     $act->like_type = 'kunena.thankyou';
     // Do not add private activities
     if ($act->access > 20) {
         return;
     }
     CFactory::load('libraries', 'activities');
     CActivityStream::add($act);
 }

 function onAfterVote($poll, $option_id)
 {
     $user =& JFactory::getUser();
     $points = JPATH_ROOT . '/components/com_community/libraries/core.php';
     $activity = JPATH_ROOT . '/components/com_community/libraries/core.php';
     if ($this->params->get('points', '0') == '1' && file_exists($points)) {
         require_once $points;
         CUserPoints::assignPoint('com_acepolls.vote');
     }
     if ($this->params->get('activity', '0') == '1' && file_exists($activity)) {
         require_once $activity;
         $text = JText::_('COM_ACEPOLLS_ACTIVITY_TEXT');
         $link = JRoute::_('index.php?option=com_acepolls&view=poll&id=' . $poll->id . ":" . $poll->alias . self::getItemid($poll->id));
         $act = new stdClass();
         $act->cmd = 'wall.write';
         $act->actor = $user->id;
         $act->target = 0;
         $act->title = JText::_('{actor} ' . $text . ' <a href="' . $link . '">' . $poll->title . '</a>');
         $act->content = '';
         $act->app = 'wall';
         $act->cid = 0;
         CFactory::load('libraries', 'activities');
         CActivityStream::add($act);
     }
 }

 /**
  * add points to user based on the action.
  */
 function assignPoint($action, $userId = null)
 {
     //get the rule points
     //must use the JFactory::getUser to get the aid
     $juser =& JFactory::getUser($userId);
     if ($juser->id != 0) {
         $aid = $juser->aid;
         // if the aid is null, means this is not the current logged-in user.
         // so we need to manually get this aid for this user.
         if (is_null($aid)) {
             $aid = 0;
             //defautl to 0
             // Get an ACL object
             $acl =& JFactory::getACL();
             $grp = $acl->getAroGroup($juser->id);
             $group = 'USERS';
             if ($acl->is_group_child_of($grp->name, $group)) {
                 $aid = 1;
                 // Fudge Authors, Editors, Publishers and Super Administrators into the special access group
                 if ($acl->is_group_child_of($grp->name, 'Registered') || $acl->is_group_child_of($grp->name, 'Public Backend')) {
                     $aid = 2;
                 }
             }
         }
         $points = CUserPoints::_getActionPoint($action, $aid);
         $user = CFactory::getUser($userId);
         $points += $user->getKarmaPoint();
         $user->_points = $points;
         $user->save();
     }
 }

 function deletegroupannouncement($data)
 {
     require_once JPATH_SITE . '/components/com_community/libraries/core.php';
     require_once JPATH_SITE . '/libraries/joomla/filesystem/folder.php';
     CFactory::load('libraries', 'apps');
     $error_messages = array();
     $response = NULL;
     $validated = true;
     if ("" == $data['groupid'] || 0 == $data['groupid']) {
         $validated = false;
         $error_messages[] = array("id" => 1, "fieldname" => "groupid", "message" => "Groupid cannot be blank");
     }
     if ($data['bulletinid'] == "" || 0 == $data['bulletinid']) {
         $validated = false;
         $error_messages[] = array("id" => 1, "fieldname" => "bulletinid", "message" => "Bulletinid cannot be blank");
     }
     $user =& JFactory::getUser();
     $group =& JTable::getInstance('Group', 'CTable');
     $group->id = $data['groupid'];
     if (true == $validated) {
         $bulletin =& JTable::getInstance('Bulletin', 'CTable');
         $bulletin->id = $data['bulletinid'];
         $bulletin->groupid = $data['groupid'];
         $validated = true;
         if (true == empty($bulletin->id)) {
             $validated = false;
             $error_messages[] = array("id" => 1, "fieldname" => "bulletinid", "message" => "Invalid bulletin id. Check 'bulletinid' field in request");
         }
         CFactory::load('helpers', 'owner');
         CFactory::load('models', 'bulletins');
         $groupsModel =& CFactory::getModel('groups');
         $bulletin =& JTable::getInstance('Bulletin', 'CTable');
         $group =& JTable::getInstance('Group', 'CTable');
         $group->load($groupid);
         $bulletin->id = $data['bulletinid'];
         $bulletin->groupid = $data['groupid'];
         if ($bulletin->delete()) {
             //add user points
             CFactory::load('libraries', 'userpoints');
             CUserPoints::assignPoint('group.news.remove');
         }
     }
     if (true == isset($error_messages) && 0 < sizeof($error_messages)) {
         $res = array();
         foreach ($error_messages as $key => $error_message) {
             $res[] = $error_message;
         }
         $response = array("id" => 0, 'errors' => $res);
     } else {
         $response = array('id' => $bulletin->id);
     }
     return $response;
 }

 /**
  * add points to user based on the action.
  * @param $action
  * @param null $userId
  */
 public static function assignPoint($action, $userId = null)
 {
     //get the rule points
     //must use the JFactory::getUser to get the aid
     $juser = JFactory::getUser($userId);
     //since 4.0, check if this action is published, else return false (boolean)
     $userPointModel = CFactory::getModel('Userpoints');
     $point = $userPointModel->getPointData($action);
     if (!isset($point->published) || !$point->published) {
         return false;
     }
     if ($juser->id != 0) {
         if (!method_exists($juser, 'getAuthorisedViewLevels')) {
             $aid = $juser->aid;
             // if the aid is null, means this is not the current logged-in user.
             // so we need to manually get this aid for this user.
             if (is_null($aid)) {
                 $aid = 0;
                 //defautl to 0
                 // Get an ACL object
                 $acl = JFactory::getACL();
                 $grp = $acl->getAroGroup($juser->id);
                 $group = 'USERS';
                 if ($acl->is_group_child_of($grp->name, $group)) {
                     $aid = 1;
                     // Fudge Authors, Editors, Publishers and Super Administrators into the special access group
                     if ($acl->is_group_child_of($grp->name, 'Registered') || $acl->is_group_child_of($grp->name, 'Public Backend')) {
                         $aid = 2;
                     }
                 }
             }
         } else {
             //joomla 1.6
             $aid = $juser->getAuthorisedViewLevels();
         }
         $points = CUserPoints::_getActionPoint($action, $aid);
         $user = CFactory::getUser($userId);
         $points += $user->getKarmaPoint();
         $user->_points = $points;
         $profile = JTable::getInstance('Profile', 'CTable');
         $profile->load($user->id);
         $user->_thumb = $profile->thumb;
         $user->_avatar = $profile->avatar;
         $user->save();
         //Event trigger
         $appsLib = CAppPlugins::getInstance();
         $appsLib->loadApplications();
         $params = array('action' => $action, 'points' => $points, 'userId' => $user->id);
         $appsLib->triggerEvent('onAfterAssignPoint', $params);
         return true;
     }
 }

	public function onAfterThankyou($thankyoutargetid, $username , $message) {
		CFactory::load ( 'libraries', 'userpoints' );
		CUserPoints::assignPoint ( 'com_kunena.thread.thankyou', $thankyoutargetid );

		$act = new stdClass ();
		$act->cmd = 'wall.write';
		$act->actor = JFactory::getUser()->id;
		$act->target = $thankyoutargetid;
		$act->title = JText::_ ( '{single}{actor}{/single}{multiple}{actors}{/multiple} ' . JText::_( 'COM_KUNENA_JS_ACTIVITYSTREAM_THANKYOU' ).' <a href="' . $message->getTopic()->getUrl() . '">' . $message->subject . '</a> ' . JText::_ ( 'COM_KUNENA_JS_ACTIVITYSTREAM_REPLY_MSG2' ) );
		$act->content = NULL;
		$act->app = 'kunena.thankyou';
		$act->cid = $thankyoutargetid;
		$act->access = $this->getAccess($message->getCategory());

		CFactory::load ( 'libraries', 'activities' );
		CActivityStream::add ( $act );
	}

 /**
  * Maps a user status with JomSocial's user status
  *
  *	@param	Array	User values
  **/
 public function mapStatus($userId)
 {
     $result = $this->facebook->api('/me/statuses');
     $status = isset($result['data'][0]) ? $result['data'][0] : '';
     if (empty($status)) {
         return;
     }
     CFactory::load('helpers', 'linkgenerator');
     $connectModel = CFactory::getModel('Connect');
     $status = $status['message'];
     $rawStatus = $status;
     // @rule: Do not strip html tags but escape them.
     CFactory::load('helpers', 'string');
     $status = CStringHelper::escape($status);
     // @rule: Autolink hyperlinks
     $status = CLinkGeneratorHelper::replaceURL($status);
     // @rule: Autolink to users profile when message contains @username
     $status = CLinkGeneratorHelper::replaceAliasURL($status);
     // Reload $my from CUser so we can use some of the methods there.
     $my = CFactory::getUser($userId);
     $params = $my->getParams();
     // @rule: For existing statuses, do not set them.
     if ($connectModel->statusExists($status, $userId)) {
         return;
     }
     CFactory::load('libraries', 'activities');
     $act = new stdClass();
     $act->cmd = 'profile.status.update';
     $act->actor = $userId;
     $act->target = $userId;
     $act->title = '{actor} ' . $status;
     $act->content = '';
     $act->app = 'profile';
     $act->cid = $userId;
     $act->access = $params->get('privacyProfileView');
     $act->comment_id = CActivities::COMMENT_SELF;
     $act->comment_type = 'profile.status';
     $act->like_id = CActivities::LIKE_SELF;
     $act->like_type = 'profile.status';
     CActivityStream::add($act);
     //add user points
     CFactory::load('libraries', 'userpoints');
     CUserPoints::assignPoint('profile.status.update');
     // Update status from facebook.
     $my->setStatus($rawStatus);
 }

//.........这里部分代码省略.........
                     $activityParams = new CParameter('');
                     /* Save cords if exists */
                     if (isset($attachment['location'])) {
                         /* Save geo name */
                         $act->location = $attachment['location'][0];
                         $act->latitude = $attachment['location'][1];
                         $act->longitude = $attachment['location'][2];
                     }
                     $headMeta = new CParameter('');
                     if (isset($attachment['fetch'])) {
                         $headMeta->set('title', $attachment['fetch'][2]);
                         $headMeta->set('description', $attachment['fetch'][3]);
                         $headMeta->set('image', $attachment['fetch'][1]);
                         $headMeta->set('link', $attachment['fetch'][0]);
                         //do checking if this is a video link
                         $video = JTable::getInstance('Video', 'CTable');
                         $isValidVideo = @$video->init($attachment['fetch'][0]);
                         if ($isValidVideo) {
                             $headMeta->set('type', 'video');
                             $headMeta->set('video_provider', $video->type);
                             $headMeta->set('video_id', $video->getVideoId());
                             $headMeta->set('height', $video->getHeight());
                             $headMeta->set('width', $video->getWidth());
                         }
                         $activityParams->set('headMetas', $headMeta->toString());
                     }
                     //Store mood in paramm
                     if (isset($attachment['mood']) && $attachment['mood'] != 'Mood') {
                         $activityParams->set('mood', $attachment['mood']);
                     }
                     $act->params = $activityParams->toString();
                     //CActivityStream::add($act);
                     //check if the user points is enabled
                     if (CUserPoints::assignPoint('profile.status.update')) {
                         /* Let use our new CApiStream */
                         $activityData = CApiActivities::add($act);
                         CTags::add($activityData);
                         $recipient = CFactory::getUser($attachment['target']);
                         $params = new CParameter('');
                         $params->set('actorName', $my->getDisplayName());
                         $params->set('recipientName', $recipient->getDisplayName());
                         $params->set('url', CUrlHelper::userLink($act->target, false));
                         $params->set('message', $message);
                         $params->set('stream', JText::_('COM_COMMUNITY_SINGULAR_STREAM'));
                         $params->set('stream_url', CRoute::_('index.php?option=com_community&view=profile&userid=' . $activityData->actor . '&actid=' . $activityData->id));
                         CNotificationLibrary::add('profile_status_update', $my->id, $attachment['target'], JText::sprintf('COM_COMMUNITY_FRIEND_WALL_POST', $my->getDisplayName()), '', 'wall.post', $params);
                         //email and add notification if user are tagged
                         CUserHelper::parseTaggedUserNotification($message, $my, $activityData, array('type' => 'post-comment'));
                     }
                     break;
                     // Message posted from Group page
                 // Message posted from Group page
                 case 'groups':
                     //
                     $groupLib = new CGroups();
                     $group = JTable::getInstance('Group', 'CTable');
                     $group->load($attachment['target']);
                     // Permission check, only site admin and those who has
                     // mark their attendance can post message
                     if (!COwnerHelper::isCommunityAdmin() && !$group->isMember($my->id) && $config->get('lockgroupwalls')) {
                         $objResponse->addScriptCall("alert('permission denied');");
                         return $objResponse->sendResponse();
                     }
                     $act = new stdClass();
                     $act->cmd = 'groups.wall';
                     $act->actor = $my->id;

 public function ajaxDeleteActivity($app, $activityId)
 {
     $my = CFactory::getUser();
     $objResponse = new JAXResponse();
     $filter = JFilterInput::getInstance();
     $app = $filter->clean($app, 'string');
     $activityId = $filter->clean($activityId, 'int');
     $activity = JTable::getInstance('Activity', 'CTable');
     $activity->load($activityId);
     $json = array();
     // @todo: do permission checking within the ACL
     if ($my->authorise('community.delete', 'activities.' . $activityId, $activity)) {
         $activity->delete($app);
         if ($activity->app == 'profile') {
             $model = $this->getModel('activities');
             $data = $model->getAppActivities(array('app' => 'profile', 'cid' => $activity->cid, 'limit' => 1));
             $status = $this->getModel('status');
             $status->update($activity->cid, $data[0]->title, $activity->access);
             $user = CFactory::getUser($activity->cid);
             $today = JFactory::getDate();
             $user->set('_status', $data[0]->title);
             $user->set('_posted_on', $today->toSql());
         }
         $json = array('success' => true);
         CUserPoints::assignPoint('wall.remove');
     } else {
         $json = array('error' => true);
     }
     $this->cacheClean(array(COMMUNITY_CACHE_TAG_ACTIVITIES));
     die(json_encode($json));
 }

 /**
  * Delete post message
  *
  * @param	response	An ajax Response object
  * @param	id			A unique identifier for the wall row
  *
  * returns	response
  */
 function ajaxRemoveWall($response, $id, $cache_id = "")
 {
     $my = CFactory::getUser();
     $wallModel = CFactory::getModel('wall');
     $wall = $wallModel->get($id);
     CError::assert($id, '', '!empty', __FILE__, __LINE__);
     CFactory::load('helpers', 'owner');
     // Make sure the current user actually has the correct permission
     // Only the original writer and the person the wall is meant for (and admin of course)
     // can delete the wall
     if ($my->id == $wall->post_by || $my->id == $wall->contentid || COwnerHelper::isCommunityAdmin()) {
         if ($wallModel->deletePost($id)) {
             // @rule: Remove the wall activity from the database as well
             CFactory::load('libraries', 'activities');
             CActivityStream::remove('walls', $id);
             //add user points
             if ($wall->post_by != 0) {
                 CFactory::load('libraries', 'userpoints');
                 CUserPoints::assignPoint('wall.remove', $wall->post_by);
             }
         } else {
             $html = JText::_('Error while removing wall. Line:' . __LINE__);
             $response->addAlert($html);
         }
         $cache =& JFactory::getCache('plgCommunityWalls');
         $cache->remove($cache_id);
         $cache =& JFactory::getCache('plgCommunityWalls_fullview');
         $cache->remove($cache_id);
     } else {
         $html = JText::_('COM_COMMUNITY_PERMISSION_DENIED_WARNING');
         $response->addAlert($html);
     }
     return $response;
 }

 public function ajaxAddApp($name, $position)
 {
     // Check permissions
     $my =& JFactory::getUser();
     if ($my->id == 0) {
         return $this->ajaxBlockUnregister();
     }
     $filter = JFilterInput::getInstance();
     $name = $filter->clean($name, 'string');
     $position = $filter->clean($position, 'string');
     // Add application
     $appModel = CFactory::getModel('apps');
     $appModel->addApp($my->id, $name, $position);
     // Activity stream
     $act = new stdClass();
     $act->cmd = 'application.add';
     $act->actor = $my->id;
     $act->target = 0;
     $act->title = JText::_('COM_COMMUNITY_ACTIVITIES_APPLICATIONS_ADDED');
     $act->content = '';
     $act->app = $name;
     $act->cid = $my->id;
     CFactory::load('libraries', 'activities');
     CActivityStream::add($act);
     // User points
     CFactory::load('libraries', 'userpoints');
     CUserPoints::assignPoint('application.add');
     // Get application
     $id = $appModel->getUserApplicationId($name, $my->id);
     $appInfo = $appModel->getAppInfo($name);
     $params = new CParameter($appModel->getPluginParams($id, null));
     $isCoreApp = $params->get('coreapp');
     $app->id = $id;
     $app->title = isset($appInfo->title) ? $appInfo->title : '';
     $app->description = isset($appInfo->description) ? $appInfo->description : '';
     $app->isCoreApp = $isCoreApp;
     $app->name = $name;
     if (JFile::exists(CPluginHelper::getPluginPath('community', $name) . DS . $name . DS . 'favicon.png')) {
         $app->favicon['16'] = rtrim(JURI::root(), '/') . CPluginHelper::getPluginURI('community', $name) . '/' . $name . '/favicon.png';
     } else {
         $app->favicon['16'] = rtrim(JURI::root(), '/') . '/components/com_community/assets/app_favicon.png';
     }
     $tmpl = new CTemplate();
     $tmpl->set('apps', array($app));
     $tmpl->set('itemType', 'edit');
     $html = $tmpl->fetch('application.item');
     $objResponse = new JAXResponse();
     $objResponse->addScriptCall('joms.apps.showSettingsWindow', $app->id, $app->name);
     $objResponse->addScriptCall('joms.editLayout.addAppToLayout', $position, $html);
     // $objResponse->addScriptCall('cWindowHide();');
     return $objResponse->sendResponse();
 }

 public function ajaxAddApp($name, $position)
 {
     // Check permissions
     $my = CFactory::getUser();
     if ($my->id == 0) {
         return $this->ajaxBlockUnregister();
     }
     $filter = JFilterInput::getInstance();
     $name = $filter->clean($name, 'string');
     $position = $filter->clean($position, 'string');
     // Add application
     $appModel = CFactory::getModel('apps');
     $appModel->addApp($my->id, $name, $position);
     // Activity stream
     $act = new stdClass();
     $act->cmd = 'application.add';
     $act->actor = $my->id;
     $act->target = 0;
     $act->title = '';
     //JText::_('COM_COMMUNITY_ACTIVITIES_APPLICATIONS_ADDED');
     $act->content = '';
     $act->app = 'app.install';
     $act->cid = 0;
     // application id
     $params = new JRegistry('');
     $params->set('app', $name);
     //CActivityStream::addActor( $act, $params->toString() );
     // User points
     //CFactory::load( 'libraries' , 'userpoints' );
     CUserPoints::assignPoint('application.add');
     // Get application
     $id = $appModel->getUserApplicationId($name, $my->id);
     $appInfo = $appModel->getAppInfo($name);
     $params = new CParameter($appModel->getPluginParams($id, null));
     $isCoreApp = $appInfo->coreapp;
     $app = new stdClass();
     $app->id = $id;
     $app->title = isset($appInfo->title) ? $appInfo->title : '';
     $app->description = isset($appInfo->description) ? $appInfo->description : '';
     $app->isCoreApp = $isCoreApp;
     $app->name = $name;
     if ($appInfo->customFavicon != '') {
         $app->favicon['64'] = JURI::root(true) . '/' . $appInfo->customFavicon;
     } elseif (JFile::exists(CPluginHelper::getPluginPath('community', $name) . '/favicon_64.png')) {
         $app->favicon['64'] = JURI::root(true) . CPluginHelper::getPluginURI('community', $name) . '/' . $name . '/favicon_64.png';
     } else {
         $app->favicon['64'] = JURI::root(true) . '/components/com_community/assets/app_avatar.png';
     }
     $tmpl = new CTemplate();
     $tmpl->set('apps', array($app));
     $tmpl->set('itemType', 'edit');
     $tmpl->set('position', $position);
     $html = $tmpl->fetch('application.item');
     $json = array('success' => true, 'title' => $app->title, 'item' => $html, 'id' => $app->id);
     die(json_encode($json));
 }

 /**
  *
  */
 public static function joinApproved($groupId, $userid)
 {
     $group = JTable::getInstance('Group', 'CTable');
     $member = JTable::getInstance('GroupMembers', 'CTable');
     $group->load($groupId);
     $act = new stdClass();
     $act->cmd = 'group.join';
     $act->actor = $userid;
     $act->target = 0;
     $act->title = '';
     //JText::sprintf('COM_COMMUNITY_GROUPS_GROUP_JOIN' , '{group_url}' , $group->name );
     $act->content = '';
     $act->app = 'groups.join';
     $act->cid = $group->id;
     $act->groupid = $group->id;
     $params = new CParameter('');
     $params->set('group_url', 'index.php?option=com_community&view=groups&task=viewgroup&groupid=' . $group->id);
     $params->set('action', 'group.join');
     // Add logging
     if (CUserPoints::assignPoint('group.join')) {
         CActivityStream::addActor($act, $params->toString());
     }
     // Store the group and update stats
     $group->updateStats();
     $group->store();
 }

//.........这里部分代码省略.........
                 }
             }
         }
     }
     //makesafe on the file
     $file['name'] = $my->id . '_' . JFile::makeSafe($file['name']);
     if (isset($file['name'])) {
         $target_file_path = $upload_path;
         $relative_target_file = $rel_upload_path . DIRECTORY_SEPARATOR . $file['name'];
         $target_file = JPath::clean($target_file_path . DIRECTORY_SEPARATOR . JFile::makeSafe($file['name']));
         $isNew = false;
         if (EB::image()->canUpload($file, $err)) {
             if (!$isFromBackend) {
                 EB::info()->set(JText::_($err), 'error');
                 $mainframe->redirect(EBR::_('index.php?option=com_easyblog&view=dashboard&layout=profile', false));
             } else {
                 //from backend
                 $mainframe->redirect(EBR::_('index.php?option=com_easyblog&view=users', false), JText::_($err), 'error');
             }
             return;
         }
         if (0 != (int) $file['error']) {
             if (!$isFromBackend) {
                 EB::info()->set($file['error'], 'error');
                 $mainframe->redirect(EBR::_('index.php?option=com_easyblog&view=dashboard&layout=profile', false));
             } else {
                 //from backend
                 $mainframe->redirect(EBR::_('index.php?option=com_easyblog&view=users', false), $file['error'], 'error');
             }
             return;
         }
         //rename the file 1st.
         $oldAvatar = $profile->avatar;
         $tempAvatar = '';
         if ($oldAvatar != 'default.png' && $oldAvatar != 'default_blogger.png') {
             $session = JFactory::getSession();
             $sessionId = $session->getToken();
             $fileExt = JFile::getExt(JPath::clean($target_file_path . DIRECTORY_SEPARATOR . $oldAvatar));
             $tempAvatar = JPath::clean($target_file_path . DIRECTORY_SEPARATOR . $sessionId . '.' . $fileExt);
             JFile::move($target_file_path . DIRECTORY_SEPARATOR . $oldAvatar, $tempAvatar);
         } else {
             $isNew = true;
         }
         if (JFile::exists($target_file)) {
             if ($oldAvatar != 'default.png' && $oldAvatar != 'default_blogger.png') {
                 //rename back to the previous one.
                 JFile::move($tempAvatar, $target_file_path . DIRECTORY_SEPARATOR . $oldAvatar);
             }
             if (!$isFromBackend) {
                 EB::info()->set(JText::sprintf('ERROR.FILE_ALREADY_EXISTS', $relative_target_file), 'error');
                 $mainframe->redirect(EBR::_('index.php?option=com_easyblog&view=dashboard&layout=profile', false));
             } else {
                 //from backend
                 $mainframe->redirect(EBR::_('index.php?option=com_easyblog&view=users', false), JText::sprintf('ERROR.FILE_ALREADY_EXISTS', $relative_target_file), 'error');
             }
             return;
         }
         if (JFolder::exists($target_file)) {
             if ($oldAvatar != 'default.png' && $oldAvatar != 'default_blogger.png') {
                 //rename back to the previous one.
                 JFile::move($tempAvatar, $target_file_path . DIRECTORY_SEPARATOR . $oldAvatar);
             }
             if (!$isFromBackend) {
                 //JError::raiseNotice(100, JText::sprintf('ERROR.FOLDER_ALREADY_EXISTS',$relative_target_file));
                 EB::info()->set(JText::sprintf('ERROR.FOLDER_ALREADY_EXISTS', $relative_target_file), 'error');
                 $mainframe->redirect(EBR::_('index.php?option=com_easyblog&view=dashboard&layout=profile', false));
             } else {
                 //from backend
                 $mainframe->redirect(EBR::_('index.php?option=com_easyblog&view=users', false), JText::sprintf('ERROR.FILE_ALREADY_EXISTS', $relative_target_file), 'error');
             }
             return;
         }
         $configImageWidth = EBLOG_AVATAR_LARGE_WIDTH;
         $configImageHeight = EBLOG_AVATAR_LARGE_HEIGHT;
         $image = EB::simpleimage();
         $image->load($file['tmp_name']);
         $image->resizeToFill($configImageWidth, $configImageHeight);
         $image->save($target_file, $image->image_type);
         //now we update the user avatar. If needed, we remove the old avatar.
         if ($oldAvatar != 'default.png' && $oldAvatar != 'default_blogger.png') {
             //if(JFile::exists( JPATH_ROOT.DIRECTORY_SEPARATOR.$oldAvatar ))
             if (JFile::exists($tempAvatar)) {
                 //JFile::delete( JPATH_ROOT.DIRECTORY_SEPARATOR.$oldAvatar );
                 JFile::delete($tempAvatar);
             }
         }
         if ($isNew && !$isFromBackend) {
             if ($my->id != 0 && $config->get('main_jomsocial_userpoint')) {
                 $jsUserPoint = JPATH_ROOT . DIRECTORY_SEPARATOR . 'components' . DIRECTORY_SEPARATOR . 'com_community' . DIRECTORY_SEPARATOR . 'libraries' . DIRECTORY_SEPARATOR . 'userpoints.php';
                 if (JFile::exists($jsUserPoint)) {
                     require_once $jsUserPoint;