File: //var/www/intranet.kauko.lt/wp-content/plugins/dpProEventCalendar/classes/ical.class.php
<?php
// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
// RSS Feed
class DPPEC_iCal extends DpProEventCalendar_Init {
function __construct( $type )
{
if( $type == 'calendar' )
$this->ical_calendar();
if( $type == 'event' )
$this->ical_event();
die();
}
function ical_event()
{
global $pec_init;
if( isset( $_GET[ DP_PRO_EVENT_CALENDAR_ICAL_EVENT ] ) && strlen($_GET[ DP_PRO_EVENT_CALENDAR_ICAL_EVENT ]) <= 11 )
$event_id = $_GET[ DP_PRO_EVENT_CALENDAR_ICAL_EVENT ];
else
die();
$date = $_GET['d'];
$event_date = date( 'Y-m-d', $date );
// Init Base
$pec_init->init_base();
$base = $pec_init->base;
$event_id = $base->get_event_id_by_code( $event_id );
$calendar_id = $base->getCalendarByEvent( $event_id );
if( ! $calendar_id )
die();
$base->setCalendar( $calendar_id );
if( ! $base::$calendar_obj->ical_active )
die();
$limit = $base::$calendar_obj->ical_limit;
if( ! is_numeric( $limit ) || $limit <= 0 )
$limit = '';
$event = $base::getEventData( $event_id );
$event_date .= ' ' . substr( $event->date, 11 );
//timezone
$tz = get_option('timezone_string'); // get current PHP timezone
$gmt_offset = get_option('gmt_offset');
$minutes_offset = "0";
if( $gmt_offset != "" )
{
$minutes_offset = floor( $gmt_offset * 60 );
if( $minutes_offset < 0 )
$minutes_offset = "+" . str_replace( "-", "", $minutes_offset );
else
$minutes_offset = "-" . $minutes_offset;
}
if( $tz == "" )
$tz = date_default_timezone_get();
else
date_default_timezone_set( $tz ); // set the PHP timezone to match WordPress
//send headers
header( 'Content-type: text/calendar; charset=utf-8' );
header( 'Content-Disposition: attachment; filename="events.ics"' );
echo "BEGIN:VCALENDAR\n";
echo "VERSION:2.0\n";
echo "PRODID:-//DP Pro Event Calendar//" . DP_PRO_EVENT_CALENDAR_VER . "//EN\n";
/* @var $event event */
//date_default_timezone_set('UTC'); // set the PHP timezone to UTC, we already calculated event
$dateStamp = ':' . get_the_date( 'Ymd\THis', $event->id );
if( $event->all_day ) {
$dateStart = ';VALUE=DATE:' . date( 'Ymd',strtotime( $event_date ) ); //all day
$dateEnd = ';VALUE=DATE:' . date( 'Ymd',strtotime( $event_date ) + 86400 ); //add one day
} else {
$dateStart = ':'.date( 'Ymd\THis',strtotime( $event_date ) );
if( $event->end_time_hh != "" && $event->end_time_mm != "" )
$dateEnd = ':' . date( 'Ymd\THis', strtotime( substr( $event_date, 0, 11 ) . ' ' . $event->end_time_hh . ':' . $event->end_time_mm . ':00' ) );
else
$dateEnd = ':' . date( 'Ymd\THis', strtotime( $event_date ) );
//&& !$detect->isMobile()
if( $this->timezoneDoesDST( $tz, substr( $event_date, 0, 11 ) ) && ( $tz == "UTC" || $tz == "Europe/London" ) )
{
$dateStart = ':' . date( 'Ymd\THis', strtotime ( '-1 hour' , strtotime( $event_date ) ) );
if($event->end_time_hh != "" && $event->end_time_mm != "")
$dateEnd = ':' . date( 'Ymd\THis',strtotime( '-1 hour' , strtotime( substr( $event_date, 0, 11 ) . ' ' . $event->end_time_hh . ':' . $event->end_time_mm . ':00' ) ) );
else
$dateEnd = ':' . date( 'Ymd\THis',strtotime( '-1 hour' , strtotime( $event_date ) ) );
}
if( ( $tz == "UTC" || $tz == "Europe/London" ) && $minutes_offset != "0" )
{
$dateStart = ':' . date( 'Ymd\THis', strtotime ( $minutes_offset . ' minutes' , strtotime( $event->date ) ) );
if( $event->end_time_hh != "" && $event->end_time_mm != "" )
$dateEnd = ':' . date( 'Ymd\THis',strtotime( $minutes_offset . ' minutes' , strtotime( substr( $endDate, 0, 11 ) . ' ' . $event->end_time_hh . ':' . $event->end_time_mm . ':00' ) ) );
else
$dateEnd = ':' . date( 'Ymd\THis',strtotime( $minutes_offset . ' minutes' , strtotime( substr( $endDate, 0, 11 ) . ' 23:59:00' ) ) );
}
}
//echo "strtotime ".strtotime($event_date);
date_default_timezone_set( $tz ); // set the PHP timezone to match WordPress
//formats
$endash = html_entity_decode('–', ENT_COMPAT, 'UTF-8');
$summary = $event->title;
$summary = str_replace( '–', '-', $summary );
$summary = str_replace( '&', '&', $summary );
$summary = str_replace( '’', "'", $summary );
$summary = str_replace( "\n", '', $summary );
$summary = str_replace( "\r", '', $summary );
$summary = str_replace( "\\","\\\\", strip_tags( nl2br( $summary ) ) );
$summary = str_replace( ';','\;',$summary );
$summary = str_replace( ',','\,',$summary );
$description = $event->description;
//$description = str_replace("\n", '', $description);
//$description = str_replace("\r", '', $description);
$description = str_replace( "\\","\\\\", strip_tags( $description ) );
$description = str_replace( "\n", '\n ', $description );
$description = str_replace( "\r", '\r ', $description );
$description = str_replace( ';','\;', $description );
$description = str_replace( ',','\,', $description );
$address = "";
$location = $event->location;
$location_id = $event->location_id;
if( is_numeric( $location_id ) )
{
$address = get_post_meta( $location_id, 'pec_venue_address', true );
if( $address != "" )
$location = $address;
}
$location = str_replace( '–', '-', $location );
$location = str_replace( '&', '&', $location );
$location = str_replace( '’', "'", $location );
$location = str_replace( "\n", '', $location );
$location = str_replace( "\r", '', $location );
$location = str_replace( "<br>", ' ', $location );
$location = str_replace( "\\","\\\\", strip_tags( nl2br( $location ) ) );
$location = str_replace( ';','\;',$location );
$location = str_replace( ',','\,',$location );
$link = $event->link;
$UID = sprintf( '%04x%04x-%04x-%04x-%04x-%04x%04x%04x',
// 32 bits for "time_low"
mt_rand( 0, 0xffff ), mt_rand( 0, 0xffff ),
// 16 bits for "time_mid"
mt_rand( 0, 0xffff ),
// 16 bits for "time_hi_and_version",
// four most significant bits holds version number 4
mt_rand( 0, 0x0fff ) | 0x4000,
// 16 bits, 8 bits for "clk_seq_hi_res",
// 8 bits for "clk_seq_low",
// two most significant bits holds zero and one for variant DCE1.1
mt_rand( 0, 0x3fff ) | 0x8000,
// 48 bits for "node"
mt_rand( 0, 0xffff ), mt_rand( 0, 0xffff ), mt_rand( 0, 0xffff )
);
$post_thumbnail_id = get_post_thumbnail_id( $event->id );
$image_attributes = wp_get_attachment_image_src( $post_thumbnail_id, 'large' );
$event_bg = "";
if( $post_thumbnail_id )
$event_bg = 'ATTACH;FMTTYPE=image/jpeg:' . $image_attributes[0];
$rrule = "";
if( $event->recurring_frecuency == 3 )
{
$interval = get_post_meta( $event->id, 'pec_monthly_every', true );
$pec_monthly_position = get_post_meta( $event->id, 'pec_monthly_position', true );
$pec_monthly_day = get_post_meta( $event->id, 'pec_monthly_day', true );
$rrule = "RRULE:FREQ=MONTHLY;";
$rrule .= "INTERVAL=" . $interval . ";";
switch( $pec_monthly_position )
{
case 'first':
$rrule .= "BYSETPOS=1";
break;
case 'second':
$rrule .= "BYSETPOS=2";
break;
case 'third':
$rrule .= "BYSETPOS=3";
break;
case 'fourth':
$rrule .= "BYSETPOS=4";
break;
case 'last':
$rrule .= "BYSETPOS=-1";
break;
}
switch( $pec_monthly_day )
{
case 'monday':
$rrule .= "BYDAY=MO";
break;
case 'tuesday':
$rrule .= "BYDAY=TU";
break;
case 'wednesday':
$rrule .= "BYDAY=WE";
break;
case 'thursday':
$rrule .= "BYDAY=TH";
break;
case 'friday':
$rrule .= "BYDAY=FR";
break;
case 'saturday':
$rrule .= "BYDAY=SA";
break;
case 'sunday':
$rrule .= "BYDAY=SU";
break;
}
}
echo "BEGIN:VEVENT\n";
echo "UID:{$UID}\n";
echo "DTSTART;TZID={$tz}{$dateStart}\n";
echo "DTEND;TZID={$tz}{$dateEnd}\n";
echo "DTSTAMP{$dateStamp}Z\n";
echo "SUMMARY:{$summary}\n";
echo "DESCRIPTION:{$description}\n";
echo "LOCATION:{$location}\n";
echo "URL:{$link}\n";
if( $rrule != "" )
echo $rrule;
if( $event_bg != "" )
echo "{$event_bg}\n";
echo "END:VEVENT\n";
echo "END:VCALENDAR";
date_default_timezone_set( $tz ); // set the PHP timezone back the way it was
}
function ical_calendar()
{
global $pec_init;
if( isset( $_GET[ DP_PRO_EVENT_CALENDAR_ICAL ] ) && is_numeric( $_GET[ DP_PRO_EVENT_CALENDAR_ICAL ] ) )
$calendar_id = $_GET[ DP_PRO_EVENT_CALENDAR_ICAL ];
else
die();
if( isset( $_GET['all'] ) && $_GET['all'] == 1 )
$all_events = 1;
$category = '';
if( isset($_GET['cat'] ) && is_numeric($_GET['cat'] ) )
$category = $_GET['cat'];
$opts = array();
$opts['id_calendar'] = $calendar_id;
$opts['category'] = $category;
$opts['include_all_events'] = $all_events;
$dpProEventCalendar_class = $pec_init->init_base( $opts );
$calendar_obj = $dpProEventCalendar_class->get_calendar();
if( ! $calendar_obj->ical_active )
die();
$limit = $calendar_obj->ical_limit;
if( ! is_numeric( $limit ) || $limit <= 0 )
$limit = 99;
$cal_events = $dpProEventCalendar_class::upcomingCalendarLayout( true, $limit, '', null, null, true, false, true, false, false, '', false );
//timezone
$tz = get_option( 'timezone_string' ); // get current PHP timezone
$gmt_offset = get_option( 'gmt_offset' );
$minutes_offset = "0";
if( $gmt_offset != "" )
{
$minutes_offset = floor( $gmt_offset * 60 );
if( $minutes_offset < 0 )
$minutes_offset = "+" . str_replace( "-", "", $minutes_offset );
else
$minutes_offset = "-" . $minutes_offset;
}
if( $tz == "" )
$tz = date_default_timezone_get();
date_default_timezone_set( get_option('timezone_string' ) ); // set the PHP timezone to match WordPress
//send headers
header( 'Content-type: text/calendar; charset=utf-8' );
header( 'Content-Disposition: attachment; filename="events.ics"' );
echo "BEGIN:VCALENDAR\n";
echo "VERSION:2.0\n";
echo "PRODID:-//DP Pro Event Calendar//" . DP_PRO_EVENT_CALENDAR_VER . "//EN\n";
/*
echo "
BEGIN:VTIMEZONE
TZID:".$tz."
X-LIC-LOCATION:".$tz."
BEGIN:DAYLIGHT
TZOFFSETFROM:-0800
TZOFFSETTO:-0700
TZNAME:PDT
DTSTART:19700308T020000
RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0700
TZOFFSETTO:-0800
TZNAME:PST
DTSTART:19701101T020000
RRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU
END:STANDARD
END:VTIMEZONE";
*/
$processed = array();
if( is_array( $cal_events ) )
{
foreach ( $cal_events as $key => $event )
{
if( $event->id == "" )
$event->id = $event->ID;
$event = (object)array_merge((array)$dpProEventCalendar_class::getEventData($event->id), (array)$event);
// To Be Confirmed ?
if( $event->tbc )
continue;
if( $event->end_date != "" && $event->end_date != "0000-00-00" )
$endDate = $event->end_date;
else
$endDate = $event->date;
if( $event->recurring_frecuency == 1 && in_array( $event->id, $processed ) )
continue;
if( $event->recurring_frecuency == 2 || $event->recurring_frecuency == 3 )
$endDate = $event->date;
$processed[] = $event->id;
$dateStamp = ':' . get_the_date( 'Ymd\THis', $event->id );
if( $event->all_day ){
$dateStart = ';VALUE=DATE:' . date( 'Ymd',strtotime( $event->date ) ); //all day
$dateEnd = ';VALUE=DATE:' . date( 'Ymd',strtotime( $endDate ) + 86400 ); //add one day
} else {
$dateStart = ':' . date( 'Ymd\THis', strtotime( $event->date ) );
if( $event->end_time_hh != "" && $event->end_time_mm != "" ) {
$dateEnd = ':' . date( 'Ymd\THis', strtotime( substr( $endDate, 0, 11 ) . ' ' . $event->end_time_hh . ':' . $event->end_time_mm .':00' ) );
} else {
$dateEnd = ':' . date( 'Ymd\THis', strtotime( substr( $endDate, 0, 11 ) . ' 23:59:00' ) );
}
//&& !$detect->isMobile()
if( $this->timezoneDoesDST( $tz, substr( $event_date, 0, 11 ) ) && ( $tz == "UTC" || $tz == "Europe/London" ) ) {
$dateStart = ':' . date( 'Ymd\THis', strtotime ( '-1 hour' , strtotime( $event->date ) ) );
if( $event->end_time_hh != "" && $event->end_time_mm != "" ) {
$dateEnd = ':' . date( 'Ymd\THis', strtotime( '-1 hour' , strtotime( substr( $endDate, 0, 11 ) . ' ' . $event->end_time_hh . ':' . $event->end_time_mm .':00' ) ) );
} else {
$dateEnd = ':' . date( 'Ymd\THis', strtotime( '-1 hour' , strtotime( substr( $endDate, 0, 11 ) . ' 23:59:00' ) ) );
}
}
if( ( $tz == "UTC" || $tz == "Europe/London" ) && $minutes_offset != "0" ) {
$dateStart = ':' . date( 'Ymd\THis', strtotime ( $minutes_offset . ' minutes' , strtotime( $event->date ) ) );
if( $event->end_time_hh != "" && $event->end_time_mm != "" ) {
$dateEnd = ':' . date( 'Ymd\THis', strtotime( $minutes_offset . ' minutes' , strtotime( substr( $endDate, 0, 11) . ' ' . $event->end_time_hh . ':' . $event->end_time_mm .':00' ) ) );
} else {
$dateEnd = ':' . date( 'Ymd\THis', strtotime( $minutes_offset . ' minutes' , strtotime( substr( $endDate, 0, 11) . ' 23:59:00' ) ) );
}
}
}
date_default_timezone_set( get_option( 'timezone_string' ) ); // set the PHP timezone to match WordPress
//formats
$summary = $event->title;
$summary = str_replace( '–', '-', $summary );
$summary = str_replace( '&', '&', $summary );
$summary = str_replace( '’', "'", $summary );
$summary = str_replace( "\n", '', $summary );
$summary = str_replace( "\r", '', $summary );
$summary = str_replace( "\\","\\\\", strip_tags( nl2br( $summary ) ) );
$summary = str_replace( ';','\;',$summary );
$summary = str_replace( ',','\,',$summary );
$description = $event->description;
//$description = str_replace("\n", '', $description);
//$description = str_replace("\r", '', $description);
$description = str_replace( "\\","\\\\", strip_tags( $description ) );
$description = str_replace( "\n\r", '\n', $description );
$description = str_replace( "\n", '\n ', $description );
$description = str_replace( "\r", '', $description );
$description = str_replace( ';','\;', $description );
$description = str_replace( ',','\,', $description );
$address = "";
$location = $event->location;
$location_id = $event->location_id;
if( is_numeric( $location_id ) )
{
$address = get_post_meta( $location_id, 'pec_venue_address', true );
if( $address != "" )
$location = $address;
}
$location = str_replace( '–', '-', $location );
$location = str_replace( '&', '&', $location );
$location = str_replace( '’', "'", $location );
$location = str_replace( "\n", '', $location );
$location = str_replace( "\r", '', $location );
$location = str_replace( "<br>", ' ', $location );
$location = str_replace( "\\","\\\\", strip_tags( nl2br( $location ) ) );
$location = str_replace( ';','\;',$location );
$location = str_replace( ',','\,',$location );
$link = $event->link;
$UID = sprintf( '%04x%04x-%04x-%04x-%04x-%04x%04x%04x',
// 32 bits for "time_low"
mt_rand( 0, 0xffff ), mt_rand( 0, 0xffff ),
// 16 bits for "time_mid"
mt_rand( 0, 0xffff ),
// 16 bits for "time_hi_and_version",
// four most significant bits holds version number 4
mt_rand( 0, 0x0fff ) | 0x4000,
// 16 bits, 8 bits for "clk_seq_hi_res",
// 8 bits for "clk_seq_low",
// two most significant bits holds zero and one for variant DCE1.1
mt_rand( 0, 0x3fff ) | 0x8000,
// 48 bits for "node"
mt_rand( 0, 0xffff ), mt_rand( 0, 0xffff ), mt_rand( 0, 0xffff )
);
$post_thumbnail_id = get_post_thumbnail_id( $event->id );
$image_attributes = wp_get_attachment_image_src( $post_thumbnail_id, 'large' );
$event_bg = "";
if( $post_thumbnail_id )
$event_bg = 'ATTACH;FMTTYPE=image/jpeg:' . $image_attributes[0];
$rrule = "";
if( $event->recurring_frecuency == 3 ) {
$interval = get_post_meta( $event->id, 'pec_monthly_every', true );
$pec_monthly_position = get_post_meta( $event->id, 'pec_monthly_position', true );
$pec_monthly_day = get_post_meta( $event->id, 'pec_monthly_day', true );
$rrule = "RRULE:FREQ=MONTHLY;";
$rrule .= "INTERVAL=" . $interval . ";";
switch( $pec_monthly_position ) {
case 'first':
$rrule .= "BYSETPOS=1";
break;
case 'second':
$rrule .= "BYSETPOS=2";
break;
case 'third':
$rrule .= "BYSETPOS=3";
break;
case 'fourth':
$rrule .= "BYSETPOS=4";
break;
case 'last':
$rrule .= "BYSETPOS=-1";
break;
}
switch( $pec_monthly_day ) {
case 'monday':
$rrule .= "BYDAY=MO";
break;
case 'tuesday':
$rrule .= "BYDAY=TU";
break;
case 'wednesday':
$rrule .= "BYDAY=WE";
break;
case 'thursday':
$rrule .= "BYDAY=TH";
break;
case 'friday':
$rrule .= "BYDAY=FR";
break;
case 'saturday':
$rrule .= "BYDAY=SA";
break;
case 'sunday':
$rrule .= "BYDAY=SU";
break;
}
}
echo "BEGIN:VEVENT\n";
echo "UID:{$UID}\n";
if( $tz != "UTC" ) {
echo "DTSTART;TZID={$tz}{$dateStart}\n";
echo "DTEND;TZID={$tz}{$dateEnd}\n";
} elseif( $event->all_day ) {
echo "DTSTART{$dateStart}\n";
echo "DTEND{$dateEnd}\n";
} else {
echo "DTSTART{$dateStart}Z\n";
echo "DTEND{$dateEnd}Z\n";
}
/*
if($rrule != "") {
echo "
".$rrule;
}*/
echo "DTSTAMP{$dateStamp}Z\n";
echo "SUMMARY:{$summary}\n";
echo "DESCRIPTION:{$description}\n";
echo "LOCATION:{$location}\n";
echo "URL:{$link}\n";
if( $event_bg != "" )
echo "{$event_bg}\n";
echo "END:VEVENT\n";
}
}
echo "END:VCALENDAR";
date_default_timezone_set($tz); // set the PHP timezone back the way it was
}
function timezoneDoesDST( $tzId, $time = "" )
{
if( class_exists( 'DateTimeZone' ) && $tzId != "" )
{
$tz = new DateTimeZone( $tzId );
$date = new DateTime( $time != "" ? $time : "now", $tz );
$trans = $tz->getTransitions();
foreach ( $trans as $k => $t )
{
if ( $t["ts"] > $date->format('U') )
return $trans[$k-1]['isdst'];
}
} else
return false;
}
}
?>