129 lines
4.3 KiB
PHP
129 lines
4.3 KiB
PHP
<?php
|
|
/**
|
|
* Copyright (c) 2012 Georg Ehrke <ownclouddev@georgswebsite.de>
|
|
* This file is licensed under the Affero General Public License version 3 or
|
|
* later.
|
|
* See the COPYING-README file.
|
|
*/
|
|
/**
|
|
* This class does export and converts all times to UTC
|
|
*/
|
|
class OC_Calendar_Export{
|
|
/**
|
|
* @brief Use one of these constants as second parameter if you call OC_Calendar_Export::export()
|
|
*/
|
|
const CALENDAR = 'calendar';
|
|
const EVENT = 'event';
|
|
|
|
/**
|
|
* @brief export a calendar or an event
|
|
* @param integer $id id of calendar / event
|
|
* @param string $type use OC_Calendar_Export constants
|
|
* @param boolean $security true: check access class; false: don't (used mainly with link-sharing)
|
|
* @return string
|
|
*/
|
|
public static function export($id, $type, $security=true) {
|
|
if($type == self::EVENT) {
|
|
$return = self::event($id, $security);
|
|
}else{
|
|
$return = self::calendar($id, $security);
|
|
}
|
|
return self::fixLineBreaks($return);
|
|
}
|
|
|
|
/**
|
|
* @brief exports a calendar and convert all times to UTC
|
|
* @param integer $id id of the calendar
|
|
* @param boolean $security true: check access class; false: don't (used mainly with link-sharing)
|
|
* @return string
|
|
*/
|
|
private static function calendar($id, $security=true) {
|
|
$events = OC_Calendar_Object::all($id);
|
|
$calendar = OC_Calendar_Calendar::find($id);
|
|
$return = "BEGIN:VCALENDAR\nVERSION:2.0\nPRODID:ownCloud Calendar " . OCP\App::getAppVersion('calendar') . "\nX-WR-CALNAME:" . $calendar['displayname'] . "\n";
|
|
foreach($events as $event) {
|
|
$return .= self::generateEvent($event, $security);
|
|
}
|
|
$return .= "END:VCALENDAR";
|
|
return $return;
|
|
}
|
|
|
|
/**
|
|
* @brief exports an event and convert all times to UTC
|
|
* @param integer $id id of the event
|
|
* @param boolean $security true: check access class; false: don't (used mainly with link-sharing)
|
|
* @return string
|
|
*/
|
|
private static function event($id, $security=true) {
|
|
$event = OC_Calendar_Object::find($id);
|
|
$return = "BEGIN:VCALENDAR\nVERSION:2.0\nPRODID:ownCloud Calendar " . OCP\App::getAppVersion('calendar') . "\nX-WR-CALNAME:" . $event['summary'] . "\n";
|
|
$return .= self::generateEvent($event, $security);
|
|
$return .= "END:VCALENDAR";
|
|
return $return;
|
|
}
|
|
|
|
/**
|
|
* @brief generates the VEVENT/VTODO/VJOURNAL with UTC dates
|
|
* @param array $event
|
|
* @param boolean $security true: check access class; false: don't (used mainly with link-sharing)
|
|
* @return string
|
|
*/
|
|
private static function generateEvent($event, $security=true) {
|
|
$object = OC_VObject::parse($event['calendardata']);
|
|
if(!$object){
|
|
return false;
|
|
}
|
|
|
|
# handle with care! if $security is false, private events can get published
|
|
# this should be used only with link-shared event (not calendar! *concrete event*!)
|
|
if ($security) {
|
|
|
|
// access permissions
|
|
$sharedAccessClassPermissions = OC_Calendar_Object::getAccessClassPermissions($object);
|
|
if(OC_Calendar_Object::getowner($event['id']) !== OCP\User::getUser()){
|
|
if (!($sharedAccessClassPermissions & OCP\PERMISSION_READ)) {
|
|
return '';
|
|
}
|
|
}
|
|
|
|
// data clean-up
|
|
$object = OC_Calendar_Object::cleanByAccessClass($event['id'], $object);
|
|
}
|
|
|
|
// handle the data itself
|
|
if($object->VEVENT){
|
|
$dtstart = $object->VEVENT->DTSTART;
|
|
$start_dt = $dtstart->getDateTime();
|
|
$dtend = OC_Calendar_Object::getDTEndFromVEvent($object->VEVENT);
|
|
$end_dt = $dtend->getDateTime();
|
|
if($dtstart->getDateType() !== Sabre\VObject\Property\DateTime::DATE) {
|
|
$start_dt->setTimezone(new DateTimeZone('UTC'));
|
|
$end_dt->setTimezone(new DateTimeZone('UTC'));
|
|
$object->VEVENT->setDateTime('DTSTART', $start_dt, Sabre\VObject\Property\DateTime::UTC);
|
|
$object->VEVENT->setDateTime('DTEND', $end_dt, Sabre\VObject\Property\DateTime::UTC);
|
|
}
|
|
return $object->VEVENT->serialize();
|
|
}
|
|
if($object->VTODO){
|
|
return $object->VTODO->serialize();
|
|
}
|
|
if($object->VJOURNAL){
|
|
return $object->VJOURNAL->serialize();
|
|
}
|
|
return '';
|
|
}
|
|
|
|
/**
|
|
* @brief fixes new line breaks
|
|
* (fixes problems with Apple iCal)
|
|
* @param string $string to fix
|
|
* @return string
|
|
*/
|
|
private static function fixLineBreaks($string) {
|
|
$string = str_replace("\r\n", "\n", $string);
|
|
$string = str_replace("\r", "\n", $string);
|
|
$string = str_replace("\n", "\r\n", $string);
|
|
return $string;
|
|
}
|
|
}
|