nextcloud/apps/calendar/lib/app.php

437 lines
14 KiB
PHP

<?php
/**
* Copyright (c) 2011 Bart Visscher <bartv@thisnet.nl>
* Copyright (c) 2012 Georg Ehrke <georg@owncloud.com>
* This file is licensed under the Affero General Public License version 3 or
* later.
* See the COPYING-README file.
*
* This class manages our app actions
*/
OC_Calendar_App::$l10n = new OC_L10N('calendar');
OC_Calendar_App::$tz = OC_Calendar_App::getTimezone();
class OC_Calendar_App{
const CALENDAR = 'calendar';
const EVENT = 'event';
/**
* @brief language object for calendar app
*/
public static $l10n;
/**
* @brief categories of the user
*/
protected static $categories = null;
/**
* @brief timezone of the user
*/
public static $tz;
/**
* @brief returns informations about a calendar
* @param int $id - id of the calendar
* @param bool $security - check access rights or not
* @param bool $shared - check if the user got access via sharing
* @return mixed - bool / array
*/
public static function getCalendar($id, $security = true, $shared = false){
if(! is_numeric($id)){
return false;
}
$calendar = OC_Calendar_Calendar::find($id);
if($shared === true){
if(OC_Calendar_Share::check_access(OCP\USER::getUser(), $id, OC_Calendar_Share::CALENDAR)){
return $calendar;
}
}
if($security === true){
if($calendar['userid'] != OCP\USER::getUser()){
return false;
}
}
return $calendar;
}
/**
* @brief returns informations about an event
* @param int $id - id of the event
* @param bool $security - check access rights or not
* @param bool $shared - check if the user got access via sharing
* @return mixed - bool / array
*/
public static function getEventObject($id, $security = true, $shared = false){
$event = OC_Calendar_Object::find($id);
if($shared === true){
if(OC_Calendar_Share::check_access(OCP\USER::getUser(), $id, OC_Calendar_Share::EVENT)){
return $event;
}
}
if($security === true){
$calendar = self::getCalendar($event['calendarid'], false);
if($calendar['userid'] != OCP\USER::getUser()){
return false;
}
}
if($event === false){
return false;
}
return $event;
}
/**
* @brief returns the parsed calendar data
* @param int $id - id of the event
* @param bool $security - check access rights or not
* @return mixed - bool / object
*/
public static function getVCalendar($id, $security = true, $shared = false){
$event_object = self::getEventObject($id, $security, $shared);
if($event_object === false){
return false;
}
$vobject = OC_VObject::parse($event_object['calendardata']);
if(is_null($vobject)){
return false;
}
return $vobject;
}
/**
* @brief checks if an event was edited and dies if it was
* @param (object) $vevent - vevent object of the event
* @param (int) $lastmodified - time of last modification as unix timestamp
* @return (bool)
*/
public static function isNotModified($vevent, $lastmodified){
$last_modified = $vevent->__get('LAST-MODIFIED');
if($last_modified && $lastmodified != $last_modified->getDateTime()->format('U')){
OCP\JSON::error(array('modified'=>true));
exit;
}
return true;
}
/**
* @brief returns the default categories of ownCloud
* @return (array) $categories
*/
protected static function getDefaultCategories(){
return array(
self::$l10n->t('Birthday'),
self::$l10n->t('Business'),
self::$l10n->t('Call'),
self::$l10n->t('Clients'),
self::$l10n->t('Deliverer'),
self::$l10n->t('Holidays'),
self::$l10n->t('Ideas'),
self::$l10n->t('Journey'),
self::$l10n->t('Jubilee'),
self::$l10n->t('Meeting'),
self::$l10n->t('Other'),
self::$l10n->t('Personal'),
self::$l10n->t('Projects'),
self::$l10n->t('Questions'),
self::$l10n->t('Work'),
);
}
/**
* @brief returns the vcategories object of the user
* @return (object) $vcategories
*/
protected static function getVCategories() {
if (is_null(self::$categories)) {
self::$categories = new OC_VCategories('calendar', null, self::getDefaultCategories());
}
return self::$categories;
}
/**
* @brief returns the categories of the vcategories object
* @return (array) $categories
*/
public static function getCategoryOptions(){
$categories = self::getVCategories()->categories();
return $categories;
}
/**
* scan events for categories.
* @param $events VEVENTs to scan. null to check all events for the current user.
*/
public static function scanCategories($events = null) {
if (is_null($events)) {
$calendars = OC_Calendar_Calendar::allCalendars(OCP\USER::getUser());
if(count($calendars) > 0) {
$events = array();
foreach($calendars as $calendar) {
$calendar_events = OC_Calendar_Object::all($calendar['id']);
$events = $events + $calendar_events;
}
}
}
if(is_array($events) && count($events) > 0) {
$vcategories = self::getVCategories();
$vcategories->delete($vcategories->categories());
foreach($events as $event) {
$vobject = OC_VObject::parse($event['calendardata']);
if(!is_null($vobject)) {
self::loadCategoriesFromVCalendar($vobject);
}
}
}
}
/**
* check VEvent for new categories.
* @see OC_VCategories::loadFromVObject
*/
public static function loadCategoriesFromVCalendar(OC_VObject $calendar) {
$object = null;
if (isset($calendar->VEVENT)) {
$object = $calendar->VEVENT;
} else
if (isset($calendar->VTODO)) {
$object = $calendar->VTODO;
} else
if (isset($calendar->VJOURNAL)) {
$object = $calendar->VJOURNAL;
}
if ($object) {
self::getVCategories()->loadFromVObject($object, true);
}
}
/**
* @brief returns the options for the repeat rule of an repeating event
* @return array - valid inputs for the repeat rule of an repeating event
*/
public static function getRepeatOptions(){
return OC_Calendar_Object::getRepeatOptions(self::$l10n);
}
/**
* @brief returns the options for the end of an repeating event
* @return array - valid inputs for the end of an repeating events
*/
public static function getEndOptions(){
return OC_Calendar_Object::getEndOptions(self::$l10n);
}
/**
* @brief returns the options for an monthly repeating event
* @return array - valid inputs for monthly repeating events
*/
public static function getMonthOptions(){
return OC_Calendar_Object::getMonthOptions(self::$l10n);
}
/**
* @brief returns the options for an weekly repeating event
* @return array - valid inputs for weekly repeating events
*/
public static function getWeeklyOptions(){
return OC_Calendar_Object::getWeeklyOptions(self::$l10n);
}
/**
* @brief returns the options for an yearly repeating event
* @return array - valid inputs for yearly repeating events
*/
public static function getYearOptions(){
return OC_Calendar_Object::getYearOptions(self::$l10n);
}
/**
* @brief returns the options for an yearly repeating event which occurs on specific days of the year
* @return array - valid inputs for yearly repeating events
*/
public static function getByYearDayOptions(){
return OC_Calendar_Object::getByYearDayOptions();
}
/**
* @brief returns the options for an yearly repeating event which occurs on specific month of the year
* @return array - valid inputs for yearly repeating events
*/
public static function getByMonthOptions(){
return OC_Calendar_Object::getByMonthOptions(self::$l10n);
}
/**
* @brief returns the options for an yearly repeating event which occurs on specific week numbers of the year
* @return array - valid inputs for yearly repeating events
*/
public static function getByWeekNoOptions(){
return OC_Calendar_Object::getByWeekNoOptions();
}
/**
* @brief returns the options for an yearly or monthly repeating event which occurs on specific days of the month
* @return array - valid inputs for yearly or monthly repeating events
*/
public static function getByMonthDayOptions(){
return OC_Calendar_Object::getByMonthDayOptions();
}
/**
* @brief returns the options for an monthly repeating event which occurs on specific weeks of the month
* @return array - valid inputs for monthly repeating events
*/
public static function getWeekofMonth(){
return OC_Calendar_Object::getWeekofMonth(self::$l10n);
}
/**
* @return (string) $timezone as set by user or the default timezone
*/
public static function getTimezone() {
return OCP\Config::getUserValue(OCP\User::getUser(),
'calendar',
'timezone',
date_default_timezone_get());
}
/**
* @brief checks the access for a calendar / an event
* @param (int) $id - id of the calendar / event
* @param (string) $type - type of the id (calendar/event)
* @return (string) $access - level of access
*/
public static function getaccess($id, $type){
if($type == self::CALENDAR){
$calendar = self::getCalendar($id, false, false);
if($calendar['userid'] == OCP\USER::getUser()){
return 'owner';
}
$isshared = OC_Calendar_Share::check_access(OCP\USER::getUser(), $id, OC_Calendar_Share::CALENDAR);
if($isshared){
$writeaccess = OC_Calendar_Share::is_editing_allowed(OCP\USER::getUser(), $id, OC_Calendar_Share::CALENDAR);
if($writeaccess){
return 'rw';
}else{
return 'r';
}
}else{
return false;
}
}elseif($type == self::EVENT){
if(OC_Calendar_Object::getowner($id) == OCP\USER::getUser()){
return 'owner';
}
$isshared = OC_Calendar_Share::check_access(OCP\USER::getUser(), $id, OC_Calendar_Share::EVENT);
if($isshared){
$writeaccess = OC_Calendar_Share::is_editing_allowed(OCP\USER::getUser(), $id, OC_Calendar_Share::EVENT);
if($writeaccess){
return 'rw';
}else{
return 'r';
}
}else{
return false;
}
}
}
/**
* @brief analyses the parameter for calendar parameter and returns the objects
* @param (string) $calendarid - calendarid
* @param (int) $start - unixtimestamp of start
* @param (int) $end - unixtimestamp of end
* @return (array) $events
*/
public static function getrequestedEvents($calendarid, $start, $end){
$events = array();
if($calendarid == 'shared_rw' || $calendarid == 'shared_r'){
$calendars = OC_Calendar_Share::allSharedwithuser(OCP\USER::getUser(), OC_Calendar_Share::CALENDAR, 1, ($_GET['calendar_id'] == 'shared_rw')?'rw':'r');
foreach($calendars as $calendar){
$calendarevents = OC_Calendar_Object::allInPeriod($calendar['calendarid'], $start, $end);
foreach($calendarevents as $event){
$event['summary'] .= ' (' . self::$l10n->t('by') . ' ' . OC_Calendar_Object::getowner($event['id']) . ')';
}
$events = array_merge($events, $calendarevents);
}
$singleevents = OC_Calendar_Share::allSharedwithuser(OCP\USER::getUser(), OC_Calendar_Share::EVENT, 1, ($_GET['calendar_id'] == 'shared_rw')?'rw':'r');
foreach($singleevents as $singleevent){
$event = OC_Calendar_Object::find($singleevent['eventid']);
if(!array_key_exists('summary', $event)){
$event['summary'] = self::$l10n->t('unnamed');
}
$event['summary'] .= ' (' . self::$l10n->t('by') . ' ' . OC_Calendar_Object::getowner($event['id']) . ')';
$events[] = $event;
}
}else{
if (is_numeric($calendarid)) {
$calendar = self::getCalendar($calendarid);
OCP\Response::enableCaching(0);
OCP\Response::setETagHeader($calendar['ctag']);
$events = OC_Calendar_Object::allInPeriod($calendarid, $start, $end);
} else {
OCP\Util::emitHook('OC_Calendar', 'getEvents', array('calendar_id' => $calendarid, 'events' => &$events));
}
}
return $events;
}
/**
* @brief generates the output for an event which will be readable for our js
* @param (mixed) $event - event object / array
* @param (int) $start - DateTime object of start
* @param (int) $end - DateTime object of end
* @return (array) $output - readable output
*/
public static function generateEventOutput($event, $start, $end){
if(!isset($event['calendardata']) && !isset($event['vevent'])){
return false;
}
if(!isset($event['calendardata']) && isset($event['vevent'])){
$event['calendardata'] = "BEGIN:VCALENDAR\nVERSION:2.0\nPRODID:ownCloud's Internal iCal System\n" . $event['vevent']->serialize() . "END:VCALENDAR";
}
$object = OC_VObject::parse($event['calendardata']);
$vevent = $object->VEVENT;
$return = array();
$id = $event['id'];
$allday = ($vevent->DTSTART->getDateType() == Sabre_VObject_Element_DateTime::DATE)?true:false;
$last_modified = @$vevent->__get('LAST-MODIFIED');
$lastmodified = ($last_modified)?$last_modified->getDateTime()->format('U'):0;
$staticoutput = array('id'=>(int)$event['id'],
'title' => htmlspecialchars(($event['summary']!=NULL || $event['summary'] != '')?$event['summary']: self::$l10n->t('unnamed')),
'description' => isset($vevent->DESCRIPTION)?htmlspecialchars($vevent->DESCRIPTION->value):'',
'lastmodified'=>$lastmodified,
'allDay'=>$allday);
if(OC_Calendar_Object::isrepeating($id) && OC_Calendar_Repeat::is_cached_inperiod($event['id'], $start, $end)){
$cachedinperiod = OC_Calendar_Repeat::get_inperiod($id, $start, $end);
foreach($cachedinperiod as $cachedevent){
$dynamicoutput = array();
if($allday){
$start_dt = new DateTime($cachedevent['startdate'], new DateTimeZone('UTC'));
$end_dt = new DateTime($cachedevent['enddate'], new DateTimeZone('UTC'));
$dynamicoutput['start'] = $start_dt->format('Y-m-d');
$dynamicoutput['end'] = $end_dt->format('Y-m-d');
}else{
$start_dt = new DateTime($cachedevent['startdate'], new DateTimeZone('UTC'));
$end_dt = new DateTime($cachedevent['enddate'], new DateTimeZone('UTC'));
$start_dt->setTimezone(new DateTimeZone(self::$tz));
$end_dt->setTimezone(new DateTimeZone(self::$tz));
$dynamicoutput['start'] = $start_dt->format('Y-m-d H:i:s');
$dynamicoutput['end'] = $end_dt->format('Y-m-d H:i:s');
}
$return[] = array_merge($staticoutput, $dynamicoutput);
}
}else{
if(OC_Calendar_Object::isrepeating($id) || $event['repeating'] == 1){
$object->expand($start, $end);
}
foreach($object->getComponents() as $singleevent){
if(!($singleevent instanceof Sabre_VObject_Component_VEvent)){
continue;
}
$dynamicoutput = OC_Calendar_Object::generateStartEndDate($singleevent->DTSTART, OC_Calendar_Object::getDTEndFromVEvent($singleevent), $allday, self::$tz);
$return[] = array_merge($staticoutput, $dynamicoutput);
}
}
return $return;
}
}