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<?php
/**
 * JEvents Component for Joomla! 3.x
 *
 * @version     $Id: commonfunctions.php 3549 2012-04-20 09:26:21Z geraintedwards $
 * @package     JEvents
 * @copyright   Copyright (C) 2008-2019 GWE Systems Ltd, 2006-2008 JEvents Project Group
 * @license     GNU/GPLv2, see http://www.gnu.org/licenses/gpl-2.0.html
 * @link        http://www.jevents.net
 */

// functions common to component and modules
// no direct access
defined( '_JEXEC' ) or die( 'Restricted access' );

// Joomla 1.5
// tasker/controller
jimport('joomla.application.component.controller');

use Joomla\String\StringHelper;

class JEV_CommonFunctions {

	public static function getJEventsViewName(){

		static $jEventsView;

		if (!isset($jEventsView)){
			$cfg = JEVConfig::getInstance();
			$jinput = JFactory::getApplication()->input;
			// priority of view setting is url, cookie, config,
			$jEventsView = $cfg->get('com_calViewName',"flat");
			$jEventsView = $jinput->cookie->getString("jevents_view", $jEventsView, null);
			$jEventsView = $jinput->getString("jEV", $jEventsView);
			// security check
			if (!in_array($jEventsView, JEV_CommonFunctions::getJEventsViewList() )){
				$jEventsView = "flat";
			}
		}
		return $jEventsView ;
	}

	public static function loadJEventsViewLang(){

		$jEventsView = JEV_CommonFunctions::getJEventsViewName();
		$lang = JFactory::getLanguage();
		$lang->load(JEV_COM_COMPONENT."_".$jEventsView);
		$lang->load("files_jevents".$jEventsView."layout");
	}

	public static function getJEventsViewList($viewtype=null){
		$jEventsViews = array();
		switch ($viewtype) {
			case  "mod_jevents_latest" :
			case  "mod_jevents_cal" :
				$handler = opendir(JPATH_SITE . "/modules/$viewtype/tmpl/");
				while ($file = readdir($handler)) {
					if ($file != '.' && $file != '..' && $file != '.svn' ){
						if (is_dir(JPATH_SITE . "/modules/$viewtype/tmpl/".$file) ){
							$jEventsViews[] = $file;
						}
					}
				}
				break;
			default :
				$handler = opendir(JPATH_SITE . "/components/".JEV_COM_COMPONENT."/views/");
				while ($file = readdir($handler)) {
					if ($file != '.' && $file != '..' && $file != '.svn' ){
						if (is_dir(JPATH_SITE . "/components/".JEV_COM_COMPONENT."/views/".$file) && (
						file_exists(JPATH_SITE . "/components/".JEV_COM_COMPONENT."/views/".$file."/month") ||
						file_exists(JPATH_SITE . "/components/".JEV_COM_COMPONENT."/views/".$file."/config.xml")
						))
						$jEventsViews[] = $file;
					}
				}
		}
		return $jEventsViews;
	}

	/**
 * get all events_categories to use category color
 * @return  object
 */
	public static function getCategoryData(){

		static $cats;
		if (!isset($cats)){
			$db	= JFactory::getDbo();

			$sql = "SELECT c.* FROM #__categories as c WHERE extension='".JEV_COM_COMPONENT."' order by c.lft asc";
			$db->setQuery( $sql);
			$cats = $db->loadObjectList('id');
			foreach ($cats as &$cat){
				$cat->name = $cat->title;
				$params = new JRegistry($cat->params);
				$cat->color = $params->get("catcolour","");
				$cat->overlaps = $params->get("overlaps",0);
			}
			unset ($cat);


			JFactory::getApplication()->triggerEvent('onGetCategoryData', array (& $cats));

		}

		JFactory::getApplication()->triggerEvent('onGetAccessibleCategories', array (& $cats, false));


		return $cats;
	}

	public static function setColor($row){

		$cfg = JEVConfig::getInstance();

		static $catData;
		if (!isset($catData))   $catData = JEV_CommonFunctions::getCategoryData();

		if (is_object($row) && strtolower(get_class($row))!="stdclass"){
			if( $cfg->get('com_calForceCatColorEventForm',2) == '2' ){
				$color = ($row->catid() > 0 && isset($catData[$row->catid()])) ? $catData[$row->catid()]->color : '#333333';
			}
			else $color = $row->useCatColor() ? (( $row->catid() > 0  && isset($catData[$row->catid()])) ? $catData[$row->catid()]->color : '#333333' ) : $row->color_bar();

		}
		else {
			if( $cfg->get('com_calForceCatColorEventForm',2) == '2' ){
				$color = ($row->catid > 0  && isset($catData[$row->catid()])) ? $catData[$row->catid]->color : '#333333';
			}
			else $color = $row->useCatColor ? ( $row->catid > 0  && isset($catData[$row->catid()])) ? $catData[$row->catid]->color : '#333333' : $row->color_bar;

		}

		if ($color==""){
			$color="#ccc";
		}
		//$color = $row->useCatColor ? ( $row->catid > 0 ) ? $catData[$row->catid]->color : '#333333' : $row->color_bar;
		return $color;
	}

	public static function setColours($row){

		$cfg = JEVConfig::getInstance();
		if (!$cfg->get("multicategory", 0)) {
			return array(JEV_CommonFunctions::setColor($row));
		}

		static $catData;
		if (!isset($catData))   $catData = JEV_CommonFunctions::getCategoryData();

		$colours = array();

		foreach ($row->catids() as $catid ){
			if (is_object($row) && strtolower(get_class($row))!="stdclass"){
				if( $cfg->get('com_calForceCatColorEventForm',2) == '2' ){
					$colors[] = ($catid > 0 && isset($catData[$catid])) ? $catData[$catid]->color : '#333333';
				}
				else $colors[] = $row->useCatColor() ? ( $catid > 0  && isset($catData[$catid])) ? $catData[$catid]->color : '#333333' : $row->color_bar();
			}
			else {
				if( $cfg->get('com_calForceCatColorEventForm',2) == '2' ){
					$colors[] = ($row->catid > 0  && isset($catData[$catid])) ? $catData[$row->catid]->color : '#333333';
				}
				else $colors[] = $row->useCatColor ? ( $row->catid > 0  && isset($catData[$catid])) ? $catData[$row->catid]->color : '#333333' : $row->color_bar;
			}
		}
		return $colors;
	}

	/**
 * Cloaks html link whith javascript
 *
 * @param string $url		The cloaking URL
 * @param string $text		The link text
 * @param array $attribs	additional attributes
 * @return string HTML
 */
	public static function jEventsLinkCloaking($url='', $text='', $attribs=array()) {

		static $linkCloaking;

		if (!isset($linkCloaking)) {
			$cfg = JEVConfig::getInstance();
			$linkCloaking = $cfg->get('com_linkcloaking', 0);
		}

		if (!is_array($attribs)) {
			$attribs = array();
		}
		if ($linkCloaking) {
			$cloakattribs = array('onclick'=>'"window.location.href=\''. JRoute::_($url).'\';return false;"');
			return JEV_CommonFunctions::jEventsDoLink("", $text, array_merge($cloakattribs, $attribs));
		} else {
			return JEV_CommonFunctions::jEventsDoLink( JRoute::_($url), "$text", $attribs);
		}
	}

	public static function jEventsDoLink($url="",$alt="alt",$attr=array()){
		if (JString::strlen($url)==0) $url="javascript:void(0)";
		$link = "<a href='".$url."' ";
		if (count($attr)>0) {
			foreach ($attr as $key=>$val){
				$link .= " $key=$val";
			}
		}
		$link .= ">$alt</a>";
		return $link;
	}


	/**
 * Support all JevDate::strftime() parameter for Window systems
 *
 * @param string $format
 * @param int $timestamp
 * @return string formated string
 */
	public static function jev_strftime($format='', $timestamp=null) {

		if (!$timestamp) $timestamp = time();

		// Replace names by own translation to get rid of improper os system library
		if(strpos($format, '%a') !== false)
		$format = str_replace('%a', JEVHelper::getShortDayName(date('w', $timestamp)), $format);
		if(strpos($format, '%A') !== false)
		$format = str_replace('%A', JEVHelper::getDayName(date('w', $timestamp)), $format);
		if(strpos($format, '%b') !== false)
		$format = str_replace('%b', JEVHelper::getShortMonthName(date('n', $timestamp)), $format);
		if(strpos($format, '%B') !== false)
		$format = str_replace('%B', JEVHelper::getMonthName(date('n', $timestamp)), $format);

		if (IS_WIN) {
			if (!class_exists('JEV_CompatWin')) {
				require_once(dirname(__FILE__) . '/compatwin.php');
			}
			return JEV_CompatWin::win_strftime($format, $timestamp);
		} else {
			return JevDate::strftime($format, $timestamp);
		}

	}


	/**
	 * Test to see if user is creator of the event or editor or above
	 *
	 * @param unknown_type $row
	 * @param unknown_type $user
	 * @return unknown
	 */
	public static function hasAdvancedRowPermissions($row,$user=null){
		// TODO make this call a plugin
		if ($user==null){
			$user = JFactory::getUser();
		}

		// strictt publishing test
		if( JEVHelper::isEventEditor() || JEVHelper::isEventPublisher(true)){
			return true;
		}
		if (is_null($row)){
			return false;
		}
		else if( $row->created_by() == $user->id ){
			return true;
		}
		return false;
	}


	public static function notifyAuthorPublished($event){


		JLoader::register('JEventsCategory',JEV_ADMINPATH."/libraries/categoryClass.php");

		$params = JComponentHelper::getParams(JEV_COM_COMPONENT);

		$db = JFactory::getDbo();
		$cat = new JEventsCategory($db);
		$cat->load($event->catid());
		$adminuser = $cat->getAdminUser();

		$adminEmail	= $adminuser->email;
		$adminName	= $adminuser->name;
		$config = new JConfig();
		$sitename =  $config->sitename;

		$subject	= JText::sprintf('JEV_NOTIFY_AUTHOR_SUBJECT', $sitename);

		$Itemid = JEVHelper::getItemid();
		// reload the event to get the reptition ids
		$evid = (int) $event->ev_id();

		$dataModel = new JEventsDataModel("JEventsAdminDBModel");
		$queryModel = new JEventsDBModel($dataModel);

		$testevent = $queryModel->getEventById( $evid, 1, "icaldb" );

		// attach anonymous creator etc.
		JPluginHelper::importPlugin('jevents');

		JFactory::getApplication()->triggerEvent( 'onDisplayCustomFields', array( &$event) );

		$rp_id = $testevent->rp_id();

		list($year,$month,$day) = JEVHelper::getYMD();

		$uri  = JURI::getInstance(JURI::base());
		if (JFactory::getApplication()->isAdmin()){
			$root = $uri->toString( array('scheme', 'host', 'port', 'path') );
			$root = str_replace("/administrator","",$root);
			$detaillink = '<a href="' . $root . 'index.php?option=' .JEV_COM_COMPONENT . '&task=icalrepeat.detail&rp_id='.$evid.'&rp_id='.$rp_id. '&Itemid=' . $Itemid."&year=$year&month=$month&day=$day"  . '">' . $event->title() . '</a>' . "\n";
		}
		else {
				$root = $uri->toString( array('scheme', 'host', 'port') );
				$detaillink = '<a href="' . $root . JRoute::_( 'index.php?option=' .JEV_COM_COMPONENT . '&task=icalrepeat.detail&rp_id='.$evid.'&rp_id='.$rp_id. '&Itemid=' . $Itemid."&year=$year&month=$month&day=$day" ) . '">' . $event->title() . '</a>' . "\n";
		}

		$content  = sprintf( JText::_('JEV_NOTIFY_AUTHOR_Message'), $detaillink, $sitename );

		$authorname = "";
		$authoremail = "";
		if ($event->created_by()>0){
			$author = JEVHelper::getUser($event->created_by());
			if (!$author) return;
			$authorname = $author->name;
			$authoremail = $author->email;
		}
		else if (isset($event->authoremail) && $event->authoremail!=""){
			$authorname = $event->authorname;
			$authoremail = $event->authoremail;
		}
		if ($authoremail == "") return;

		// mail function
		$mail = JFactory::getMailer();
		$sender_config = $params->get('sender_config', 9);
		if ($sender_config == 0) {

			$mail->setSender(array(0 => $adminEmail, 1 => $adminName));

		} elseif ($sender_config == 1) {

			$mail->setSender(array(0 => $config->mailfrom, 1 => $config->fromname));

		} else {
			$mail->setSender(array(0 => $params->get('sender_email', ''), 1 => $params->get('sender_name', '')));
		}

		if ($params->get('email_replyto', 0) == 1) {
			$mail->addReplyTo($adminEmail);
		}

		$mail->addRecipient($authoremail);
		$mail->setSubject($subject);
		$mail->setBody($content);
		$mail->IsHTML(true);
		$mail->send();
	}

	public static function sendAdminMail( $adminName, $adminEmail, $subject='', $title='', $content='', $day='', $month='', $year='', $start_time='', $end_time='', $author='', $live_site, $modifylink, $viewlink , $event=false, $cc = "") {
		$config = new JConfig();


		if (!$adminEmail) return;
		if ((strpos($adminEmail,'@example.com') !== false)) return;

		$params = JComponentHelper::getParams(JEV_COM_COMPONENT);
                if ($params->get("com_notifyboth",0)==3){
                    return; // no notifications
                }
		$messagetemplate = $params->get("notifymessage", JText::_('JEV_DEFAULT_NOTIFYMESSAGE'));

		if (strpos($messagetemplate, "JEV_DEFAULT_NOTIFYMESSAGE")!==false || trim(strip_tags($messagetemplate))=="") {
			$messagetemplate=sprintf( JText::_('JEV_EMAIL_EVENT_TITLE'), "{TITLE}")."<br/><br/>\n";
			$messagetemplate.="{DESCRIPTION}<br/><br/>\n";
			$messagetemplate.=sprintf( JText::_('JEV_MAIL_TO_ADMIN'), "{LIVESITE}","{AUTHOR}")."<br/>\n";
			$messagetemplate.=sprintf( JText::_('JEV_EMAIL_VIEW_EVENT'), "{VIEWLINK}")."<br/>\n";
			$messagetemplate.=sprintf( JText::_('JEV_EMAIL_EDIT_EVENT'), "{EDITLINK}")."<br/>\n";
			$messagetemplate.=sprintf( JText::_('JEV_MANAGE_EVENTS'), "{MANAGEEVENTS}")."<br/>";
		}

		$uri  = JURI::getInstance(JURI::base());
		$root = $uri->toString( array('scheme', 'host', 'port') );
		$adminLink = $root.JRoute::_("index.php?option=".JEV_COM_COMPONENT."&task=admin.listevents&Itemid=".JEVHelper::getAdminItemid());

		$messagetemplate = str_replace("{TITLE}", $title,$messagetemplate);
		$messagetemplate = str_replace("{DESCRIPTION}", $content,$messagetemplate);
		if ($event){
			$messagetemplate = str_replace("{CATEGORY}", $event->catname(),$messagetemplate);
			//$messagetemplate = str_replace("{EXTRA}", $event->extra_info(),$messagetemplate);

		}
		$messagetemplate = str_replace("{LIVESITE}", $live_site,$messagetemplate);
		$messagetemplate = str_replace("{AUTHOR}", $author,$messagetemplate);
		$messagetemplate = str_replace("{DAY}", $day,$messagetemplate);
		$messagetemplate = str_replace("{MONTH}", $month,$messagetemplate);
		$messagetemplate = str_replace("{YEAR}", $year,$messagetemplate);
		$messagetemplate = str_replace("{STARTTIME}", $start_time,$messagetemplate);
		$messagetemplate = str_replace("{ENDTIME}", $end_time,$messagetemplate);
		$messagetemplate = str_replace("{VIEWLINK}", $viewlink,$messagetemplate);
		$messagetemplate = str_replace("{EDITLINK}", $modifylink,$messagetemplate);
		$messagetemplate = str_replace("{MANAGEEVENTS}", $adminLink,$messagetemplate);

		// mail function
		// JEvents category admin only or both get notifications
		if ($params->get("com_notifyboth",0)==0 || $params->get("com_notifyboth",0)==1){
			$recipient = $adminEmail;
			if ($params->get("com_notifyboth",0)==1){
				$jevadminuser = new  JUser($params->get("jevadmin",62));
				if ($jevadminuser->email != $adminEmail){
					$add_cc = $jevadminuser->email;
				} else {
					$recipient = $adminEmail;
				}
			}
		}
		// Just JEvents admin user
		else if ($params->get("com_notifyboth",0)==2){
			$jevadminuser = new  JUser($params->get("jevadmin",62));
			if ($jevadminuser->email != $adminEmail){
				$recipient = $jevadminuser->email;
			} else {
				$recipient = $adminEmail;
			}
			//Check not emailing the same user who is editing:
			$user = JFactory::getUser();
			if ($user->email === $adminEmail){
				// Get out of here we don't want to notify the admin of their own change
				return;
			}
		}

		$mail = JFactory::getMailer();
		$sender_config = $params->get('sender_config', 0);
		if ($sender_config == 0) {

			$mail->setSender(array(0 => $adminEmail, 1 => $adminName));

		} elseif ($sender_config == 1) {

			$mail->setSender(array(0 => $config->mailfrom!="" ? $config->mailfrom : adminEmail, 1 => $config->fromname!="" ? $config->fromname : adminName));

		} else {
			$mail->setSender(array(0 => $params->get('sender_email', $adminEmail), 1 => $params->get('sender_name', $adminName)));
		}


		// attach anonymous creator etc.
		JPluginHelper::importPlugin('jevents');

		JFactory::getApplication()->triggerEvent( 'onDisplayCustomFields', array( &$event) );

		if (!isset($event->authoremail) && $params->get('email_replyto', 0) == 1) {
			$mail->addReplyTo($adminEmail);
		} else if (isset($event->authoremail) && $event->authoremail !== '') {
			$mail->addReplyTo($event->authoremail);
		}

		if (isset($add_cc) && $add_cc !== "") {
			$mail->addCc($add_cc);
		}

		$mail->addRecipient($recipient);


		//Leave old replacements in place for now, and now run through default loadedfromtemplate
		// if there is an event!
		if ($event)
		{
			include_once(JEV_PATH . "/views/default/helpers/defaultloadedfromtemplate.php");
			ob_start();
			DefaultLoadedFromTemplate(false, false, $event, 0, $messagetemplate);
			$messagetemplate = ob_get_clean();

			// Process the subject too
            ob_start();
            DefaultLoadedFromTemplate(false, false, $event, 0, $subject);
            $subject = ob_get_clean();
		}

		$mail->setSubject($subject);
		$mail->setBody($messagetemplate);

		if ($event){
			$dispatcher     = JEventDispatcher::getInstance();
			JPluginHelper::importPlugin("jevents");
			$res = JFactory::getApplication()->triggerEvent( 'onSendAdminMail' , array(&$mail, $event));
		}

		if ($cc!=""){
			$mail->addCC($cc);
		}
		$mail->IsHTML(true);
		$mail->send();

	}

}

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