una/modules/boonex/timeline/classes/BxTimelineModule.php

<?php defined('BX_DOL') or die('hack attempt');
/**
 * Copyright (c) BoonEx Pty Limited - http://www.boonex.com/
 * CC-BY License - http://creativecommons.org/licenses/by/3.0/
 * 
 * @defgroup    Timeline Timeline
 * @ingroup     DolphinModules
 *
 * @{
 */

bx_import('BxDolAcl');
bx_import('BxDolModule');

require_once( BX_DIRECTORY_PATH_PLUGINS . 'Services_JSON.php' );

define('BX_TIMELINE_TYPE_OWNER', 'owner');
define('BX_TIMELINE_TYPE_CONNECTIONS', 'connections');
define('BX_TIMELINE_TYPE_ITEM', 'view_item');

define('BX_TIMELINE_HANDLER_TYPE_INSERT', 'insert');
define('BX_TIMELINE_HANDLER_TYPE_UPDATE', 'update');
define('BX_TIMELINE_HANDLER_TYPE_DELETE', 'delete');

define('BX_TIMELINE_FILTER_ALL', 'all');
define('BX_TIMELINE_FILTER_OWNER', 'owner');
define('BX_TIMELINE_FILTER_OTHER', 'other');

define('BX_TIMELINE_PARSE_TYPE_TEXT', 'text');
define('BX_TIMELINE_PARSE_TYPE_LINK', 'link');
define('BX_TIMELINE_PARSE_TYPE_PHOTO', 'photo');

define('BX_TIMELINE_PARSE_TYPE_POST', 'post');
define('BX_TIMELINE_PARSE_TYPE_SHARE', 'share');
define('BX_TIMELINE_PARSE_TYPE_DEFAULT', BX_TIMELINE_PARSE_TYPE_POST);


class BxTimelineModule extends BxDolModule
{
    var $_iOwnerId;
    var $_sJsPostObject;
    var $_sJsViewObject;
    var $_aPostElements;
    var $_sJsOutlineObject;

    var $_sDividerTemplate;
    var $_sBalloonTemplate;
    var $_sCmtPostTemplate;
    var $_sCmtViewTemplate;
    var $_sCmtTemplate;

    /**
     * Constructor
     */
    function __construct($aModule)
    {
        parent::BxDolModule($aModule);
        $this->_oConfig->init($this->_oDb);
        $this->_oTemplate->init();
        $this->_iOwnerId = 0;
    }

	/**
     * ACTION METHODS
     */
    public function actionPost()
    {
    	$sType = bx_process_input($_POST['type']);
	    $sMethod = 'getForm' . ucfirst($sType);
		if(!method_exists($this, $sMethod)) {
			$this->_echoResultJson(array());
        	return;
		}

        $this->_iOwnerId = bx_process_input(bx_get('owner_id'), BX_DATA_INT);

        $mixedAllowed = $this->isAllowedPost(true);
        if($mixedAllowed !== true) {
        	$this->_echoResultJson(array('msg' => strip_tags($mixedAllowed)));
			return;
        }

        $aResult = $this->$sMethod();
        $this->_echoResultJson($aResult);
    }

	function actionDelete()
    {
        $this->_iOwnerId = bx_process_input(bx_get('owner_id'), BX_DATA_INT);

        $iId = bx_process_input(bx_get('id'), BX_DATA_INT);
        $aEvent = $this->_oDb->getEvents(array('browse' => 'id', 'value' => $iId));

        $mixedAllowed = $this->isAllowedDelete($aEvent, true);
        if($mixedAllowed !== true) {
            $this->_echoResultJson(array('code' => 1, 'msg' => strip_tags($mixedAllowed)));
            return;
        }

        if(!$this->_oDb->deleteEvent(array('id' => $iId))) {
        	$this->_echoResultJson(array('code' => 2));
            return;
        }

        $this->onDelete($aEvent);

        $this->_echoResultJson(array('code' => 0, 'id' => $iId));
    }

	public function actionShare()
    {
    	$iOwnerId = bx_process_input(bx_get('owner_id'), BX_DATA_INT);
    	$aContent = array(
    		'type' => bx_process_input(bx_get('type'), BX_DATA_TEXT),
    		'action' => bx_process_input(bx_get('action'), BX_DATA_TEXT),
    		'object_id' => bx_process_input(bx_get('object_id'), BX_DATA_INT),	
    	);

    	$aShared = $this->_oDb->getShared($aContent['type'], $aContent['action'], $aContent['object_id']);
		if(empty($aShared) || !is_array($aShared)) {
			$this->_echoResultJson(array('code' => 1, 'msg' => _t('_bx_timeline_txt_err_cannot_share')));
        	return;
		}

	    $mixedAllowed = $this->isAllowedShare($aShared, true);
        if($mixedAllowed !== true) {
            $this->_echoResultJson(array('code' => 2, 'msg' => strip_tags($mixedAllowed)));
            return;
        }

		$iId = $this->_oDb->insertEvent(array(
            'owner_id' => $iOwnerId,
            'type' => $this->_oConfig->getPrefix('common_post') . 'share',
            'action' => '',
        	'object_id' => $this->getUserId(),
        	'object_privacy_view' => $this->_oConfig->getPrivacyViewDefault(),
            'content' => serialize($aContent),
			'title' => '',
			'description' => ''
        ));

        if(!empty($iId)) {
        	$this->onShare($iId, $aShared);

        	$sCounter = $this->_oTemplate->getShareCounter($aContent['type'], $aContent['action'], $aContent['object_id']);
        	$this->_echoResultJson(array('code' => 0, 'counter' => $sCounter, 'msg' => _t('_bx_timeline_txt_msg_success_share')));
        	return;
        }

		$this->_echoResultJson(array('code' => 3, 'msg' => _t('_bx_timeline_txt_err_cannot_share')));
    }

    function actionGetPost()
    {
        $this->_oConfig->setJsMode(true);
        $this->_iOwnerId = bx_process_input(bx_get('owner_id'), BX_DATA_INT);

        $iEvent = bx_process_input(bx_get('id'), BX_DATA_INT);
        $aEvent = $this->_oDb->getEvents(array('browse' => 'id', 'value' => $iEvent));

        $this->_echoResultJson(array('item' => $this->_oTemplate->getPost($aEvent, array('type' => 'owner', 'owner_id' => $this->_iOwnerId))));
    }

	function actionGetPosts()
    {
        $this->_oConfig->setJsMode(true);

		$aParams = $this->_prepareParamsGet();
		list($sItems, $sLoadMore, $sBack) = $this->_oTemplate->getPosts($aParams);

		$this->_echoResultJson(array('items' => $sItems, 'load_more' => $sLoadMore, 'back' => $sBack));
    }

	public function actionGetPostForm($sType)
    {
        $this->_iOwnerId = bx_process_input(bx_get('owner_id'), BX_DATA_INT);

        $sMethod = 'getForm' . ucfirst($sType);
        if(!method_exists($this, $sMethod)) {
            $this->_echoResultJson(array());
            return;
        }
        $aResult = $this->$sMethod();

        $this->_echoResultJson($aResult);
    }

    public function actionGetComments()
    {
    	$this->_iOwnerId = bx_process_input(bx_get('owner_id'), BX_DATA_INT);

    	$sSystem = bx_process_input(bx_get('system'), BX_DATA_TEXT);
    	$iId = bx_process_input(bx_get('id'), BX_DATA_INT);
    	$sComments = $this->_oTemplate->getComments($sSystem, $iId);

    	$this->_echoResultJson(array('content' => $sComments));
    }

    public function actionGetPostPopup()
    {
    	$iItemId = bx_process_input(bx_get('id'), BX_DATA_INT);
    	if(!$iItemId) 
			return;

    	echo $this->_oTemplate->getViewItemPopup($iItemId);
    }

	public function actionGetPhotoPopup()
    {
    	$iEventId = bx_process_input(bx_get('event_id'), BX_DATA_INT);
    	$iStart = bx_process_input(bx_get('start'), BX_DATA_INT);

    	if(!$iEventId)
			return;

    	echo $this->_oTemplate->getPhotoPopup($iEventId, $iStart);
    }

    public function actionAddAttachLink()
    {
    	$aResult = $this->getFormAttachLink();

    	$this->_echoResultJson($aResult);
    }

    public function actionDeleteAttachLink()
    {
    	$iLinkId = bx_process_input(bx_get('id'), BX_DATA_INT);
    	if(empty($iLinkId)) {
            $this->_echoResultJson(array());
            return;
        }

        $aResult = array();
        if($this->_oDb->deleteUnusedLinks($this->getUserId(), $iLinkId))
        	$aResult = array('code' => 0);
        else 
        	$aResult = array('code' => 1, 'msg' => _t('_bx_timeline_form_post_input_link_err_delete'));

		$this->_echoResultJson($aResult);
    }

	public function actionGetAttachLinkForm()
    {
    	echo $this->_oTemplate->getAttachLinkForm();
    }

	public function actionGetSharedBy() {
        $iSharedId = bx_process_input(bx_get('id'), BX_DATA_INT);

        echo $this->_oTemplate->getSharedBy($iSharedId);
    }

    function actionRss($iOwnerId)
    {
    	list($sUserName) = $this->getUserInfo($iOwnerId);

    	$sRssCaption = _t('_bx_timeline_txt_rss_caption', $sUserName);
    	$sRssLink = $this->_oConfig->getViewUrl($iOwnerId);

    	$aParams = $this->_prepareParams('owner', $iOwnerId, 0, $this->_oConfig->getRssLength(), '', array(), 0);
        $aEvents = $this->_oDb->getEvents($aParams);

        $aRssData = array();
        foreach($aEvents as $aEvent) {
            if(empty($aEvent['title'])) continue;

            $aRssData[$aEvent['id']] = array(
               'UnitID' => $aEvent['id'],
               'UnitTitle' => $aEvent['title'],
               'UnitLink' => $this->_oConfig->getItemViewUrl($aEvent),
               'UnitDesc' => $aEvent['description'],
               'UnitDateTimeUTS' => $aEvent['date'],
            );
        }

        bx_import('BxDolRssFactory');
        $oRss = new BxDolRssFactory();

        header('Content-Type: application/xml; charset=utf-8');
        echo $oRss->GenRssByData($aRssData, $sRssCaption, $sRssLink);
    }

	/**
     * SERVICE METHODS
     */
    public function serviceAddHandlers($sModuleUri = 'all')
    {
    	$this->_updateHandlers($sModuleUri, true);
    }

    public function serviceDeleteHandlers($sModuleUri = 'all')
    {
    	$this->_updateHandlers($sModuleUri, false);
    }

	function serviceGetActionsChecklist()
    {
        $aHandlers = $this->_oConfig->getHandlers();

        $aResults = array();
        foreach($aHandlers as $aHandler) {
        	if($aHandler['type'] != BX_TIMELINE_HANDLER_TYPE_INSERT)
        		continue;

            $aModule = $this->_oDb->getModuleByName($aHandler['module_name']);
            if(empty($aModule))
                $aModule['title'] = _t('_bx_timeline_alert_module_' . $aHandler['alert_unit']);

            $aResults[$aHandler['id']] = $aModule['title'] . ' (' . _t('_bx_timeline_alert_action_' . $aHandler['alert_action']) . ')';
        }

        asort($aResults);
        return $aResults;
    }

	public function serviceResponse($oAlert)
    {
    	bx_import('Response', $this->_aModule);
        $oResponse = new BxTimelineResponse($this);
        $oResponse->response($oAlert);
    }

    public function serviceGetBlockPost($iProfileId = 0)
    {
    	return $this->serviceGetBlockPostProfile($iProfileId);
    }

	public function serviceGetBlockPostProfile($iProfileId = 0)
	{
		if(!$iProfileId && bx_get('id') !== false) {
			$oProfile = BxDolProfile::getInstanceByContentAndType(bx_process_input(bx_get('id'), BX_DATA_INT), 'bx_persons');
			if(!empty($oProfile))
            	$iProfileId = $oProfile->id();
		}

        if(!$iProfileId)
            return array();

		$this->_iOwnerId = $iProfileId;
        list($sUserName, $sUserUrl) = $this->getUserInfo($iProfileId);

        if($this->isAllowedPost() !== true)
            return array();

        return array(
        	'content' => $this->_oTemplate->getPostBlock($this->_iOwnerId)
        );
	}

	public function serviceGetBlockView($iProfileId = 0)
	{
		$aBlock = $this->serviceGetBlockViewProfile($iProfileId);
		if(!empty($aBlock))
			return $aBlock;

    	return array('content' => MsgBox(_t('_bx_timeline_txt_msg_no_results'))); 
    }

	public function serviceGetBlockViewProfile($iProfileId = 0, $iStart = -1, $iPerPage = -1, $sFilter = '', $aModules = array(), $iTimeline = -1)
	{
		if(!$iProfileId && bx_get('id') !== false) {
			$oProfile = BxDolProfile::getInstanceByContentAndType(bx_process_input(bx_get('id'), BX_DATA_INT), 'bx_persons');
			if(!empty($oProfile))
            	$iProfileId = $oProfile->id();
		}

        if (!$iProfileId)
            return array();

		$sJsObject = $this->_oConfig->getJsObject('view');
		$aParams = $this->_prepareParams(BX_TIMELINE_TYPE_OWNER, $iProfileId, $iStart, $iPerPage, $sFilter, $aModules, $iTimeline);

		$this->_iOwnerId = $aParams['owner_id'];
		list($sUserName, $sUserUrl) = $this->getUserInfo($aParams['owner_id']);

        $aMenu = array(
			array('id' => 'timeline-view-all', 'name' => 'timeline-view-all', 'class' => '', 'link' => 'javascript:void(0)', 'onclick' => 'javascript:' . $sJsObject . '.changeFilter(this)', 'target' => '_self', 'title' => _t('_bx_timeline_menu_item_view_all'), 'active' => 1),
            array('id' => 'timeline-view-owner', 'name' => 'timeline-view-owner', 'class' => '', 'link' => 'javascript:void(0)', 'onclick' => 'javascript:' . $sJsObject . '.changeFilter(this)', 'target' => '_self', 'title' => _t('_bx_timeline_menu_item_view_owner', $sUserName)),
            array('id' => 'timeline-view-other', 'name' => 'timeline-view-other', 'class' => '', 'link' => 'javascript:void(0)', 'onclick' => 'javascript:' . $sJsObject . '.changeFilter(this)', 'target' => '_self', 'title' => _t('_bx_timeline_menu_item_view_other')),
            array('id' => 'timeline-get-rss', 'name' => 'timeline-get-rss', 'class' => '', 'link' => BX_DOL_URL_ROOT . $this->_oConfig->getBaseUri() . 'rss/' . $iProfileId . '/', 'target' => '_blank', 'title' => _t('_bx_timeline_menu_item_get_rss')),
        );

        bx_import('BxTemplMenuInteractive');
		$oMenu = new BxTemplMenuInteractive(array('template' => 'menu_interactive_vertical.html', 'menu_id'=> 'timeline-view-all', 'menu_items' => $aMenu));
		$oMenu->setSelected('', 'timeline-view-all');

		$sContent = $this->_oTemplate->getViewBlock($aParams);
        return array('content' => $sContent, 'menu' => $oMenu);
    }

    public function serviceGetBlockViewAccount($iProfileId = 0, $iStart = -1, $iPerPage = -1, $iTimeline = -1, $sFilter = '', $aModules = array())
    {
    	$aParams = $this->_prepareParams(BX_TIMELINE_TYPE_CONNECTIONS, $iProfileId, $iStart, $iPerPage, $sFilter, $aModules, $iTimeline);

    	$this->_iOwnerId = $aParams['owner_id'];

    	$sContent = $this->_oTemplate->getViewBlock($aParams);
    	return array('content' => $sContent);
    }

    public function serviceGetBlockItem()
    {
    	$iItemId = bx_process_input(bx_get('id'), BX_DATA_INT);
    	if(!$iItemId)
    		return array();

    	return array('content' => $this->_oTemplate->getItemBlock($iItemId));
    }

    public function serviceGetShareElementBlock($iOwnerId, $sType, $sAction, $iObjectId, $aParams = array())
    {
    	$aParams = array_merge($this->_oConfig->getShareDefaults(), $aParams);

    	return $this->_oTemplate->getShareElement($iOwnerId, $sType, $sAction, $iObjectId, $aParams);
    }

	public function serviceGetShareCounter($sType, $sAction, $iObjectId)
    {
    	return $this->_oTemplate->getShareCounter($sType, $sAction, $iObjectId);
    }

    public function serviceGetShareJsScript()
    {
		return $this->_oTemplate->getShareJsScript();
    }

	public function serviceGetShareJsClick($iOwnerId, $sType, $sAction, $iObjectId)
    {
    	return $this->_oTemplate->getShareJsClick($iOwnerId, $sType, $sAction, $iObjectId);
    }

    /*
     * COMMON METHODS 
     */
    public function getFormAttachLink()
    {
    	$iUserId = $this->getUserId();

    	bx_import('BxDolForm');
        $oForm = BxDolForm::getObjectInstance('mod_tml_attach_link', 'mod_tml_attach_link_add');
        $oForm->aFormAttrs['action'] = BX_DOL_URL_ROOT . $this->_oConfig->getBaseUri() . 'add_attach_link/';
        $oForm->aInputs['url']['checker']['params']['preg'] = $this->_oConfig->getPregPattern('url');

        $oForm->initChecker();
        if($oForm->isSubmittedAndValid()) {
			$sLink = $oForm->getCleanValue('url');
        	$sLinkContent = bx_file_get_contents($sLink);

        	$aMatch = array();
	        preg_match($this->_oConfig->getPregPattern('meta_title'), $sLinkContent, $aMatch);
	        $sLinkTitle = $aMatch ? $aMatch[1] : '';

	        preg_match($this->_oConfig->getPregPattern('meta_description'), $sLinkContent, $aMatch);
	        $sLinkDescription = $aMatch ? $aMatch[1] : '';

			$iId = (int)$oForm->insert(array('profile_id' => $iUserId, 'title' => $sLinkTitle, 'text' => $sLinkDescription, 'added' => time()));
            if(!empty($iId))
            	return array('item' => $this->_oTemplate->getAttachLinkItem($iUserId, $iId));

			return array('msg' => _t('_adm_nav_err_menus_create'));
        }

        return array('form' => $oForm->getCode(), 'form_id' => $oForm->id);
    }

	public function getFormPost()
    {
    	$iUserId = $this->getUserId();

    	bx_import('BxDolForm');
        $oForm = BxDolForm::getObjectInstance('mod_tml_post', 'mod_tml_post_add');
        $oForm->aFormAttrs['action'] = BX_DOL_URL_ROOT . $this->_oConfig->getBaseUri() . 'post/';
        $oForm->aInputs['owner_id']['value'] = $this->_iOwnerId;

        if(isset($oForm->aInputs['link']))
        	$oForm->aInputs['link']['content'] = $this->_oTemplate->getAttachLinkField($iUserId);

	    if(isset($oForm->aInputs['photo'])) {
	    	$aFormNested = array(
	        	'params' =>array(
	        		'nested_form_template' => 'uploader_nfw.html'
	        	),
		        'inputs' => array(),
		    );

		    bx_import('BxDolFormNested');
		    $oFormNested = new BxDolFormNested('photo', $aFormNested, 'do_submit', $this->_oTemplate);
	
	        $oForm->aInputs['photo']['storage_object'] = $this->_oConfig->getObject('storage');
	        $oForm->aInputs['photo']['images_transcoder'] = $this->_oConfig->getObject('transcoder_preview');
	        $oForm->aInputs['photo']['uploaders'] = $this->_oConfig->getUploaders('image');
	        $oForm->aInputs['photo']['upload_buttons_titles'] = array('Simple' => 'camera');
	        $oForm->aInputs['photo']['multiple'] = true;
	        $oForm->aInputs['photo']['ghost_template'] = $oFormNested;
	    }

        $oForm->initChecker();
        if($oForm->isSubmittedAndValid()) {
        	list($sUserName) = $this->getUserInfo($iUserId);

        	$sType = $oForm->getCleanValue('type');
        	$sType = $this->_oConfig->getPrefix('common_post') . $sType;
        	BxDolForm::setSubmittedValue('type', $sType, $oForm->aFormAttrs['method']);

        	$aContent = array();

        	//--- Process Text ---//
        	$sText = $oForm->getCleanValue('text');
        	unset($oForm->aInputs['text']);

        	$aContent['text'] = $this->_prepareTextForSave($sText);

        	//--- Process Link ---//
			$aLinkIds = $oForm->getCleanValue('link');
        	unset($oForm->aInputs['link']);

			//--- Process Photos ---//
			$aPhotoIds = $oForm->getCleanValue('photo');
        	unset($oForm->aInputs['photo']);

        	$sTitle = _t('_bx_timeline_txt_user_added_sample', $sUserName, _t('_bx_timeline_txt_sample'));
			$sDescription = !empty($aContent['text']) ? $aContent['text'] : '';

        	$iId = $oForm->insert(array(
        		'object_id' => $iUserId,
        		'object_privacy_view' => $this->_oConfig->getPrivacyViewDefault(),
        		'content' => serialize($aContent),
				'title' => $sTitle,
				'description' => $sDescription,
        		'date' => time()
			));

			if(!empty($iId)) {
				if(!empty($aLinkIds) && is_array($aLinkIds))
					foreach($aLinkIds as $iLinkId) 
						$this->_oDb->saveLink($iId, $iLinkId);

				if(!empty($aPhotoIds) && is_array($aPhotoIds)) {
					bx_import('BxDolStorage');
					$oStorage = BxDolStorage::getObjectInstance($this->_oConfig->getObject('storage'));

					foreach($aPhotoIds as $iPhotoId) 
						if($this->_oDb->savePhoto($iId, $iPhotoId))
							$oStorage->afterUploadCleanup($iPhotoId, $iUserId);
				}

				$this->onPost($iId);

                return array('id' => $iId);
			}

			return array('msg' => _t('_bx_timeline_txt_err_cannot_perform_action'));
        }

        return array('form' => $oForm->getCode(), 'form_id' => $oForm->id);
    }

    public function getCmtsObject($sSystem, $iId)
    {
    	if(empty($sSystem) || (int)$iId == 0)
    		return false;

    	bx_import('BxDolCmts');
        $oCmts = BxDolCmts::getObjectInstance($sSystem, $iId);
		if(!$oCmts->isEnabled())
			return false;

		return $oCmts;
    }

	public function getVoteObject($sSystem, $iId)
    {
    	if(empty($sSystem) || (int)$iId == 0)
    		return false;

    	bx_import('BxDolVote');
        $oVote = BxDolVote::getObjectInstance($sSystem, $iId);
		if(!$oVote->isEnabled())
			return false;

		return $oVote;
    }
    
	public function getUserId()
    {
        return isLogged() ? bx_get_logged_profile_id() : 0;
    }

	public function getUserIp()
    {
        return getVisitorIP();
    }

	public function getUserInfo($iUserId = 0)
    {
    	bx_import('BxDolProfile');
		$oProfile = BxDolProfile::getInstance($iUserId);
		if (!$oProfile) {
			bx_import('BxDolProfileUndefined');
			$oProfile = BxDolProfileUndefined::getInstance();
		}

		return array(
			$oProfile->getDisplayName(), 
			$oProfile->getUrl(), 
			$oProfile->getThumb(),
			$oProfile->getUnit()
		);
    }

    //--- Check permissions methods ---//
    public function checkActionErrorMsg ($iAction)
    {
        $iId = $this->_getAuthorId();
        $check_res = checkAction($iId, $iAction);
        return $check_res[CHECK_ACTION_RESULT] !== CHECK_ACTION_RESULT_ALLOWED ? $check_res[CHECK_ACTION_MESSAGE] : '';
    }
    
    public function isAllowedPost($bPerform = false)
    {
		if(isAdmin())
			return true;

		$iUserId = $this->getUserId();
		if($this->_iOwnerId == $this->getUserId())
			return true;

        $aCheckResult = checkActionModule($iUserId, 'post', $this->getName(), $bPerform);
        return $aCheckResult[CHECK_ACTION_RESULT] != CHECK_ACTION_RESULT_ALLOWED ? $aCheckResult[CHECK_ACTION_MESSAGE] : true;
    }

    public function isAllowedDelete($aEvent, $bPerform = false)
    {
        if(isAdmin())
            return true;

        $iUserId = (int)$this->getUserId();
        if((int)$aEvent['owner_id'] == $iUserId && $this->_oConfig->isAllowDelete())
           return true;

        $aCheckResult = checkActionModule($iUserId, 'delete', $this->getName(), $bPerform);
        return $aCheckResult[CHECK_ACTION_RESULT] != CHECK_ACTION_RESULT_ALLOWED ? $aCheckResult[CHECK_ACTION_MESSAGE] : true;
    }

	public function isAllowedComment($aEvent, $bPerform = false)
    {
    	$mixedComments = $this->getCommentsData($aEvent['comments']);
    	if($mixedComments === false)
    		return false;

		list($sSystem, $iObjectId) = $mixedComments;
		$oCmts = $this->getCmtsObject($sSystem, $iObjectId);
    	$oCmts->addCssJs();

    	$iUserId = (int)$this->getUserId();
    	if($iUserId == 0)
    		return false;

		if(isAdmin())
			return true;

        return $oCmts->isPostReplyAllowed($bPerform);
    }

	public function isAllowedVote($aEvent, $bPerform = false)
    {
    	$mixedVotes = $this->getVotesData($aEvent['votes']);
    	if($mixedVotes === false)
    		return false;

		list($sSystem, $iObjectId) = $mixedVotes;
		$oVote = $this->getVoteObject($sSystem, $iObjectId);
    	$oVote->addCssJs();

    	$iUserId = (int)$this->getUserId();
    	if($iUserId == 0)
    		return false;

    	if(isAdmin())
			return true;

        return $oVote->isAllowedVote($bPerform);
    }

    public function isAllowedShare($aEvent, $bPerform = false)
    {
    	if(isAdmin())
			return true;

    	$iUserId = (int)$this->getUserId();
    	if($iUserId == 0)
    		return false;

		$aCheckResult = checkActionModule($iUserId, 'share', $this->getName(), $bPerform);
        return $aCheckResult[CHECK_ACTION_RESULT] != CHECK_ACTION_RESULT_ALLOWED ? $aCheckResult[CHECK_ACTION_MESSAGE] : true;
    }

	public function onPost($iId)
    {
    	$aEvent = $this->_oDb->getEvents(array('browse' => 'id', 'value' => $iId));
    	
    	if($this->_oConfig->isSystem($aEvent['type'], $aEvent['action'])) {
    		$sPostType = 'system';
    		$iSenderId = $aEvent['owner_id'];
    	}
    	else {
    		$sPostType = 'common';
    		$iSenderId = $aEvent['object_id'];
    	}

    	//--- Event -> Post for Alerts Engine ---//
		bx_import('BxDolAlerts');
        $oAlert = new BxDolAlerts($this->_oConfig->getSystemName('alert'), 'post_' . $sPostType, $iId, $iSenderId);
        $oAlert->alert();
        //--- Event -> Post for Alerts Engine ---//
    }

	public function onShare($iId, $aShared = array())
    {
    	$aEvent = $this->_oDb->getEvents(array('browse' => 'id', 'value' => $iId));

    	if(empty($aShared)) {
			$aContent = unserialize($aEvent['content']);

			$aShared = $this->_oDb->getShared($aContent['type'], $aContent['action'], $aContent['object_id']);
			if(empty($aShared) || !is_array($aShared))
				return;
    	}

		$iUserId = $this->getUserId();
		$this->_oDb->insertShareTrack($aEvent['id'], $iUserId, $this->getUserIp(), $aShared['id']);
    	$this->_oDb->updateShareCounter($aShared['id'], $aShared['shares']);

		//--- Timeline -> Update for Alerts Engine ---//
		bx_import('BxDolAlerts');
		$oAlert = new BxDolAlerts($this->_oConfig->getSystemName('alert'), 'share', $aShared['id'], $iUserId);
		$oAlert->alert();
		//--- Timeline -> Update for Alerts Engine ---//
    }

    public function onDelete($aEvent)
    {
		$aPhotos = $this->_oDb->getPhotos($aEvent['id']);
		if(!empty($aPhotos) && is_array($aPhotos)) {
			bx_import('BxDolStorage');
			$oStorage = BxDolStorage::getObjectInstance($this->_oConfig->getObject('storage'));

			foreach($aPhotos as $iPhotoId)
				$oStorage->deleteFile($iPhotoId);

			$this->_oDb->deletePhotos($aEvent['id']);
		}

		$this->_oDb->deleteLinks($aEvent['id']);
		
		if($aEvent['type'] == $this->_oConfig->getPrefix('common_post') . BX_TIMELINE_PARSE_TYPE_SHARE) {
			$this->_oDb->deleteShareTrack($aEvent['id']);

			$aContent = unserialize($aEvent['content']);
			$aShared = $this->_oDb->getShared($aContent['type'], $aContent['action'], $aContent['object_id']);
			if(!empty($aShared) && is_array($aShared))
				$this->_oDb->updateShareCounter($aShared['id'], $aShared['shares'], -1);
		}

		//--- Event -> Delete for Alerts Engine ---//
        bx_import('BxDolAlerts');
        $oAlert = new BxDolAlerts($this->_oConfig->getSystemName('alert'), 'delete', $aEvent['id'], $this->getUserId());
        $oAlert->alert();
        //--- Event -> Delete for Alerts Engine ---//
    }

	public function getVotesData(&$aVotes)
    {
    	if(empty($aVotes) || !is_array($aVotes))
    		return false; 

		$sSystem = isset($aVotes['system']) ? $aVotes['system'] : '';
	    $iObjectId = isset($aVotes['object_id']) ? (int)$aVotes['object_id'] : 0;
	    $iCount = isset($aVotes['count']) ? (int)$aVotes['count'] : 0;
	    if($sSystem == '' || $iObjectId == 0)
	    	return false;

		return array($sSystem, $iObjectId, $iCount);
    }

    public function getCommentsData(&$aComments)
    {
    	if(empty($aComments) || !is_array($aComments))
    		return false; 

		$sSystem = isset($aComments['system']) ? $aComments['system'] : '';
	    $iObjectId = isset($aComments['object_id']) ? (int)$aComments['object_id'] : 0;
	    $iCount = isset($aComments['count']) ? (int)$aComments['count'] : 0;
	    if($sSystem == '' || $iObjectId == 0 || ($iCount == 0 && !isLogged()))
	    	return false;

		return array($sSystem, $iObjectId, $iCount);
    }
    
    protected function _prepareParams($sType, $iOwnerId, $iStart, $iPerPage, $sFilter, $aModules, $iTimeline)
    {
    	$aParams = array();
    	$aParams['browse'] = 'list';
    	$aParams['type'] = !empty($sType) ? $sType : BX_TIMELINE_TYPE_OWNER;
		$aParams['owner_id'] = (int)$iOwnerId != 0 ? $iOwnerId : $this->getUserId();
    	$aParams['start'] = (int)$iStart > 0 ? $iStart : 0;
    	$aParams['per_page'] = (int)$iPerPage > 0 ? $iPerPage : $this->_oConfig->getPerPage();
    	$aParams['filter'] = !empty($sFilter) ? $sFilter : BX_TIMELINE_FILTER_ALL;
    	$aParams['modules'] = is_array($aModules) && !empty($aModules) ? $aModules : array();
    	$aParams['timeline'] = (int)$iTimeline > 0 ? $iTimeline : 0;

    	return $aParams;
    }

    protected function _prepareParamsGet()
    {
    	$aParams = array();
    	$aParams['browse'] = 'list';

    	$sType = bx_get('type');
		$aParams['type'] = $sType !== false ? bx_process_input($sType, BX_DATA_TEXT) : BX_TIMELINE_TYPE_OWNER;

		$iOwnerId = bx_get('owner_id');
		$aParams['owner_id'] = $sType !== false ? bx_process_input(bx_get('owner_id'), BX_DATA_INT) : $this->getUserId();

        $iStart = bx_get('start');
        $aParams['start'] = $iStart !== false ? bx_process_input($iStart, BX_DATA_INT) : 0;

        $iPerPage = bx_get('per_page');
		$aParams['per_page'] = $iPerPage !== false ? bx_process_input($iPerPage, BX_DATA_INT) : $this->_oConfig->getPerPage();

        $sFilter = bx_get('filter');
		$aParams['filter'] = $sFilter !== false ? bx_process_input($sFilter, BX_DATA_TEXT) : BX_TIMELINE_FILTER_ALL;

		$aModules = bx_get('modules');
		$aParams['modules'] = $aModules !== false ? bx_process_input($aModules, BX_DATA_TEXT) : array();

		$iTimeline = bx_get('timeline');
		$aParams['timeline'] = $iTimeline !== false ? bx_process_input($iTimeline, BX_DATA_INT) : 0;

		return $aParams;
    }

	protected function _prepareTextForSave($s) 
    {
		return bx_process_input($s, BX_DATA_TEXT_MULTILINE);
    }

	protected function _updateHandlers($sModuleUri = 'all', $bInstall = true)
    {
        $aModules = $sModuleUri == 'all' ? $this->_oDb->getModules() : array($this->_oDb->getModuleByUri($sModuleUri));

        foreach($aModules as $aModule) {
			if(!BxDolRequest::serviceExists($aModule, 'get_timeline_data'))
				continue;

			$aData = BxDolService::call($aModule['name'], 'get_timeline_data');
			if(empty($aData) || !is_array($aData))
				continue;

			if($bInstall)
				$this->_oDb->insertData($aData);
			else
				$this->_oDb->deleteData($aData);
        }

        BxDolAlerts::cache();
    }

	protected function _echoResultJson($a, $isAutoWrapForFormFileSubmit = false) {

        header('Content-type: text/html; charset=utf-8');    

        require_once(BX_DIRECTORY_PATH_PLUGINS . 'Services_JSON.php');

        $oParser = new Services_JSON();
        $s = $oParser->encode($a);
        if ($isAutoWrapForFormFileSubmit && !empty($_FILES)) 
            $s = '<textarea>' . $s . '</textarea>'; // http://jquery.malsup.com/form/#file-upload
        echo $s;
    }
}

/** @} */