mirror of
https://github.com/OpenXE-org/OpenXE.git
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531 lines
19 KiB
PHP
531 lines
19 KiB
PHP
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<?php
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namespace Sabre\VObject\Component;
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use DateTimeInterface;
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use DateTimeZone;
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use Sabre\VObject;
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use Sabre\VObject\Component;
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use Sabre\VObject\InvalidDataException;
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use Sabre\VObject\Property;
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use Sabre\VObject\Recur\EventIterator;
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use Sabre\VObject\Recur\NoInstancesException;
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/**
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* The VCalendar component.
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*
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* This component adds functionality to a component, specific for a VCALENDAR.
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*
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* @copyright Copyright (C) fruux GmbH (https://fruux.com/)
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* @author Evert Pot (http://evertpot.com/)
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* @license http://sabre.io/license/ Modified BSD License
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*/
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class VCalendar extends VObject\Document
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{
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/**
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* The default name for this component.
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*
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* This should be 'VCALENDAR' or 'VCARD'.
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*
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* @var string
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*/
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public static $defaultName = 'VCALENDAR';
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/**
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* This is a list of components, and which classes they should map to.
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*
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* @var array
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*/
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public static $componentMap = [
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'VCALENDAR' => 'Sabre\\VObject\\Component\\VCalendar',
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'VALARM' => 'Sabre\\VObject\\Component\\VAlarm',
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'VEVENT' => 'Sabre\\VObject\\Component\\VEvent',
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'VFREEBUSY' => 'Sabre\\VObject\\Component\\VFreeBusy',
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'VAVAILABILITY' => 'Sabre\\VObject\\Component\\VAvailability',
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'AVAILABLE' => 'Sabre\\VObject\\Component\\Available',
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'VJOURNAL' => 'Sabre\\VObject\\Component\\VJournal',
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'VTIMEZONE' => 'Sabre\\VObject\\Component\\VTimeZone',
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'VTODO' => 'Sabre\\VObject\\Component\\VTodo',
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];
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/**
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* List of value-types, and which classes they map to.
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*
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* @var array
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*/
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public static $valueMap = [
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'BINARY' => 'Sabre\\VObject\\Property\\Binary',
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'BOOLEAN' => 'Sabre\\VObject\\Property\\Boolean',
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'CAL-ADDRESS' => 'Sabre\\VObject\\Property\\ICalendar\\CalAddress',
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'DATE' => 'Sabre\\VObject\\Property\\ICalendar\\Date',
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'DATE-TIME' => 'Sabre\\VObject\\Property\\ICalendar\\DateTime',
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'DURATION' => 'Sabre\\VObject\\Property\\ICalendar\\Duration',
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'FLOAT' => 'Sabre\\VObject\\Property\\FloatValue',
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'INTEGER' => 'Sabre\\VObject\\Property\\IntegerValue',
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'PERIOD' => 'Sabre\\VObject\\Property\\ICalendar\\Period',
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'RECUR' => 'Sabre\\VObject\\Property\\ICalendar\\Recur',
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'TEXT' => 'Sabre\\VObject\\Property\\Text',
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'TIME' => 'Sabre\\VObject\\Property\\Time',
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'UNKNOWN' => 'Sabre\\VObject\\Property\\Unknown', // jCard / jCal-only.
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'URI' => 'Sabre\\VObject\\Property\\Uri',
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'UTC-OFFSET' => 'Sabre\\VObject\\Property\\UtcOffset',
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];
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/**
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* List of properties, and which classes they map to.
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*
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* @var array
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*/
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public static $propertyMap = [
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// Calendar properties
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'CALSCALE' => 'Sabre\\VObject\\Property\\FlatText',
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'METHOD' => 'Sabre\\VObject\\Property\\FlatText',
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'PRODID' => 'Sabre\\VObject\\Property\\FlatText',
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'VERSION' => 'Sabre\\VObject\\Property\\FlatText',
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// Component properties
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'ATTACH' => 'Sabre\\VObject\\Property\\Uri',
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'CATEGORIES' => 'Sabre\\VObject\\Property\\Text',
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'CLASS' => 'Sabre\\VObject\\Property\\FlatText',
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'COMMENT' => 'Sabre\\VObject\\Property\\FlatText',
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'DESCRIPTION' => 'Sabre\\VObject\\Property\\FlatText',
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'GEO' => 'Sabre\\VObject\\Property\\FloatValue',
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'LOCATION' => 'Sabre\\VObject\\Property\\FlatText',
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'PERCENT-COMPLETE' => 'Sabre\\VObject\\Property\\IntegerValue',
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'PRIORITY' => 'Sabre\\VObject\\Property\\IntegerValue',
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'RESOURCES' => 'Sabre\\VObject\\Property\\Text',
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'STATUS' => 'Sabre\\VObject\\Property\\FlatText',
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'SUMMARY' => 'Sabre\\VObject\\Property\\FlatText',
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// Date and Time Component Properties
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'COMPLETED' => 'Sabre\\VObject\\Property\\ICalendar\\DateTime',
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'DTEND' => 'Sabre\\VObject\\Property\\ICalendar\\DateTime',
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'DUE' => 'Sabre\\VObject\\Property\\ICalendar\\DateTime',
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'DTSTART' => 'Sabre\\VObject\\Property\\ICalendar\\DateTime',
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'DURATION' => 'Sabre\\VObject\\Property\\ICalendar\\Duration',
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'FREEBUSY' => 'Sabre\\VObject\\Property\\ICalendar\\Period',
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'TRANSP' => 'Sabre\\VObject\\Property\\FlatText',
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// Time Zone Component Properties
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'TZID' => 'Sabre\\VObject\\Property\\FlatText',
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'TZNAME' => 'Sabre\\VObject\\Property\\FlatText',
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'TZOFFSETFROM' => 'Sabre\\VObject\\Property\\UtcOffset',
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'TZOFFSETTO' => 'Sabre\\VObject\\Property\\UtcOffset',
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'TZURL' => 'Sabre\\VObject\\Property\\Uri',
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// Relationship Component Properties
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'ATTENDEE' => 'Sabre\\VObject\\Property\\ICalendar\\CalAddress',
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'CONTACT' => 'Sabre\\VObject\\Property\\FlatText',
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'ORGANIZER' => 'Sabre\\VObject\\Property\\ICalendar\\CalAddress',
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'RECURRENCE-ID' => 'Sabre\\VObject\\Property\\ICalendar\\DateTime',
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'RELATED-TO' => 'Sabre\\VObject\\Property\\FlatText',
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'URL' => 'Sabre\\VObject\\Property\\Uri',
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'UID' => 'Sabre\\VObject\\Property\\FlatText',
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// Recurrence Component Properties
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'EXDATE' => 'Sabre\\VObject\\Property\\ICalendar\\DateTime',
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'RDATE' => 'Sabre\\VObject\\Property\\ICalendar\\DateTime',
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'RRULE' => 'Sabre\\VObject\\Property\\ICalendar\\Recur',
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'EXRULE' => 'Sabre\\VObject\\Property\\ICalendar\\Recur', // Deprecated since rfc5545
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// Alarm Component Properties
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'ACTION' => 'Sabre\\VObject\\Property\\FlatText',
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'REPEAT' => 'Sabre\\VObject\\Property\\IntegerValue',
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'TRIGGER' => 'Sabre\\VObject\\Property\\ICalendar\\Duration',
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// Change Management Component Properties
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'CREATED' => 'Sabre\\VObject\\Property\\ICalendar\\DateTime',
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'DTSTAMP' => 'Sabre\\VObject\\Property\\ICalendar\\DateTime',
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'LAST-MODIFIED' => 'Sabre\\VObject\\Property\\ICalendar\\DateTime',
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'SEQUENCE' => 'Sabre\\VObject\\Property\\IntegerValue',
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// Request Status
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'REQUEST-STATUS' => 'Sabre\\VObject\\Property\\Text',
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// Additions from draft-daboo-valarm-extensions-04
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'ALARM-AGENT' => 'Sabre\\VObject\\Property\\Text',
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'ACKNOWLEDGED' => 'Sabre\\VObject\\Property\\ICalendar\\DateTime',
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'PROXIMITY' => 'Sabre\\VObject\\Property\\Text',
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'DEFAULT-ALARM' => 'Sabre\\VObject\\Property\\Boolean',
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// Additions from draft-daboo-calendar-availability-05
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'BUSYTYPE' => 'Sabre\\VObject\\Property\\Text',
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];
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/**
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* Returns the current document type.
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*
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* @return int
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*/
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public function getDocumentType()
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{
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return self::ICALENDAR20;
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}
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/**
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* Returns a list of all 'base components'. For instance, if an Event has
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* a recurrence rule, and one instance is overridden, the overridden event
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* will have the same UID, but will be excluded from this list.
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*
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* VTIMEZONE components will always be excluded.
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*
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* @param string $componentName filter by component name
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*
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* @return VObject\Component[]
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*/
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public function getBaseComponents($componentName = null)
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{
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$isBaseComponent = function ($component) {
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if (!$component instanceof VObject\Component) {
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return false;
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}
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if ('VTIMEZONE' === $component->name) {
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return false;
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}
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if (isset($component->{'RECURRENCE-ID'})) {
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return false;
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}
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return true;
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};
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if ($componentName) {
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// Early exit
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return array_filter(
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$this->select($componentName),
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$isBaseComponent
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);
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}
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$components = [];
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foreach ($this->children as $childGroup) {
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foreach ($childGroup as $child) {
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if (!$child instanceof Component) {
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// If one child is not a component, they all are so we skip
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// the entire group.
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continue 2;
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}
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if ($isBaseComponent($child)) {
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$components[] = $child;
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}
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}
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}
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return $components;
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}
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/**
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* Returns the first component that is not a VTIMEZONE, and does not have
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* an RECURRENCE-ID.
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*
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* If there is no such component, null will be returned.
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*
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* @param string $componentName filter by component name
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*
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* @return VObject\Component|null
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*/
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public function getBaseComponent($componentName = null)
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{
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$isBaseComponent = function ($component) {
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if (!$component instanceof VObject\Component) {
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return false;
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}
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if ('VTIMEZONE' === $component->name) {
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return false;
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}
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if (isset($component->{'RECURRENCE-ID'})) {
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return false;
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}
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return true;
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};
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if ($componentName) {
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foreach ($this->select($componentName) as $child) {
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if ($isBaseComponent($child)) {
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return $child;
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}
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}
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return null;
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}
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// Searching all components
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foreach ($this->children as $childGroup) {
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foreach ($childGroup as $child) {
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if ($isBaseComponent($child)) {
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return $child;
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}
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}
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}
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return null;
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}
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/**
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* Expand all events in this VCalendar object and return a new VCalendar
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* with the expanded events.
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*
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* If this calendar object, has events with recurrence rules, this method
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* can be used to expand the event into multiple sub-events.
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*
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* Each event will be stripped from its recurrence information, and only
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* the instances of the event in the specified timerange will be left
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* alone.
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*
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* In addition, this method will cause timezone information to be stripped,
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* and normalized to UTC.
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*
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* @param DateTimeInterface $start
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* @param DateTimeInterface $end
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* @param DateTimeZone $timeZone reference timezone for floating dates and
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* times
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*
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* @return VCalendar
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*/
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public function expand(DateTimeInterface $start, DateTimeInterface $end, DateTimeZone $timeZone = null)
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{
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$newChildren = [];
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$recurringEvents = [];
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if (!$timeZone) {
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$timeZone = new DateTimeZone('UTC');
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}
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$stripTimezones = function (Component $component) use ($timeZone, &$stripTimezones) {
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foreach ($component->children() as $componentChild) {
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if ($componentChild instanceof Property\ICalendar\DateTime && $componentChild->hasTime()) {
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$dt = $componentChild->getDateTimes($timeZone);
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// We only need to update the first timezone, because
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// setDateTimes will match all other timezones to the
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// first.
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$dt[0] = $dt[0]->setTimeZone(new DateTimeZone('UTC'));
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$componentChild->setDateTimes($dt);
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} elseif ($componentChild instanceof Component) {
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$stripTimezones($componentChild);
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}
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}
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return $component;
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};
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foreach ($this->children() as $child) {
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if ($child instanceof Property && 'PRODID' !== $child->name) {
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// We explictly want to ignore PRODID, because we want to
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// overwrite it with our own.
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$newChildren[] = clone $child;
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} elseif ($child instanceof Component && 'VTIMEZONE' !== $child->name) {
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// We're also stripping all VTIMEZONE objects because we're
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// converting everything to UTC.
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if ('VEVENT' === $child->name && (isset($child->{'RECURRENCE-ID'}) || isset($child->RRULE) || isset($child->RDATE))) {
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// Handle these a bit later.
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$uid = (string) $child->UID;
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if (!$uid) {
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throw new InvalidDataException('Every VEVENT object must have a UID property');
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}
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if (isset($recurringEvents[$uid])) {
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$recurringEvents[$uid][] = clone $child;
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} else {
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$recurringEvents[$uid] = [clone $child];
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}
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} elseif ('VEVENT' === $child->name && $child->isInTimeRange($start, $end)) {
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$newChildren[] = $stripTimezones(clone $child);
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}
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}
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}
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foreach ($recurringEvents as $events) {
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try {
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$it = new EventIterator($events, null, $timeZone);
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} catch (NoInstancesException $e) {
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// This event is recurring, but it doesn't have a single
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// instance. We are skipping this event from the output
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// entirely.
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continue;
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}
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$it->fastForward($start);
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while ($it->valid() && $it->getDTStart() < $end) {
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if ($it->getDTEnd() > $start) {
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$newChildren[] = $stripTimezones($it->getEventObject());
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}
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$it->next();
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}
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}
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return new self($newChildren);
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}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* This method should return a list of default property values.
|
||
|
|
*
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
protected function getDefaults()
|
||
|
|
{
|
||
|
|
return [
|
||
|
|
'VERSION' => '2.0',
|
||
|
|
'PRODID' => '-//Sabre//Sabre VObject '.VObject\Version::VERSION.'//EN',
|
||
|
|
'CALSCALE' => 'GREGORIAN',
|
||
|
|
];
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* A simple list of validation rules.
|
||
|
|
*
|
||
|
|
* This is simply a list of properties, and how many times they either
|
||
|
|
* must or must not appear.
|
||
|
|
*
|
||
|
|
* Possible values per property:
|
||
|
|
* * 0 - Must not appear.
|
||
|
|
* * 1 - Must appear exactly once.
|
||
|
|
* * + - Must appear at least once.
|
||
|
|
* * * - Can appear any number of times.
|
||
|
|
* * ? - May appear, but not more than once.
|
||
|
|
*
|
||
|
|
* @var array
|
||
|
|
*/
|
||
|
|
public function getValidationRules()
|
||
|
|
{
|
||
|
|
return [
|
||
|
|
'PRODID' => 1,
|
||
|
|
'VERSION' => 1,
|
||
|
|
|
||
|
|
'CALSCALE' => '?',
|
||
|
|
'METHOD' => '?',
|
||
|
|
];
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Validates the node for correctness.
|
||
|
|
*
|
||
|
|
* The following options are supported:
|
||
|
|
* Node::REPAIR - May attempt to automatically repair the problem.
|
||
|
|
* Node::PROFILE_CARDDAV - Validate the vCard for CardDAV purposes.
|
||
|
|
* Node::PROFILE_CALDAV - Validate the iCalendar for CalDAV purposes.
|
||
|
|
*
|
||
|
|
* This method returns an array with detected problems.
|
||
|
|
* Every element has the following properties:
|
||
|
|
*
|
||
|
|
* * level - problem level.
|
||
|
|
* * message - A human-readable string describing the issue.
|
||
|
|
* * node - A reference to the problematic node.
|
||
|
|
*
|
||
|
|
* The level means:
|
||
|
|
* 1 - The issue was repaired (only happens if REPAIR was turned on).
|
||
|
|
* 2 - A warning.
|
||
|
|
* 3 - An error.
|
||
|
|
*
|
||
|
|
* @param int $options
|
||
|
|
*
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
public function validate($options = 0)
|
||
|
|
{
|
||
|
|
$warnings = parent::validate($options);
|
||
|
|
|
||
|
|
if ($ver = $this->VERSION) {
|
||
|
|
if ('2.0' !== (string) $ver) {
|
||
|
|
$warnings[] = [
|
||
|
|
'level' => 3,
|
||
|
|
'message' => 'Only iCalendar version 2.0 as defined in rfc5545 is supported.',
|
||
|
|
'node' => $this,
|
||
|
|
];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$uidList = [];
|
||
|
|
$componentsFound = 0;
|
||
|
|
$componentTypes = [];
|
||
|
|
|
||
|
|
foreach ($this->children() as $child) {
|
||
|
|
if ($child instanceof Component) {
|
||
|
|
++$componentsFound;
|
||
|
|
|
||
|
|
if (!in_array($child->name, ['VEVENT', 'VTODO', 'VJOURNAL'])) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
$componentTypes[] = $child->name;
|
||
|
|
|
||
|
|
$uid = (string) $child->UID;
|
||
|
|
$isMaster = isset($child->{'RECURRENCE-ID'}) ? 0 : 1;
|
||
|
|
if (isset($uidList[$uid])) {
|
||
|
|
++$uidList[$uid]['count'];
|
||
|
|
if ($isMaster && $uidList[$uid]['hasMaster']) {
|
||
|
|
$warnings[] = [
|
||
|
|
'level' => 3,
|
||
|
|
'message' => 'More than one master object was found for the object with UID '.$uid,
|
||
|
|
'node' => $this,
|
||
|
|
];
|
||
|
|
}
|
||
|
|
$uidList[$uid]['hasMaster'] += $isMaster;
|
||
|
|
} else {
|
||
|
|
$uidList[$uid] = [
|
||
|
|
'count' => 1,
|
||
|
|
'hasMaster' => $isMaster,
|
||
|
|
];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (0 === $componentsFound) {
|
||
|
|
$warnings[] = [
|
||
|
|
'level' => 3,
|
||
|
|
'message' => 'An iCalendar object must have at least 1 component.',
|
||
|
|
'node' => $this,
|
||
|
|
];
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($options & self::PROFILE_CALDAV) {
|
||
|
|
if (count($uidList) > 1) {
|
||
|
|
$warnings[] = [
|
||
|
|
'level' => 3,
|
||
|
|
'message' => 'A calendar object on a CalDAV server may only have components with the same UID.',
|
||
|
|
'node' => $this,
|
||
|
|
];
|
||
|
|
}
|
||
|
|
if (0 === count($componentTypes)) {
|
||
|
|
$warnings[] = [
|
||
|
|
'level' => 3,
|
||
|
|
'message' => 'A calendar object on a CalDAV server must have at least 1 component (VTODO, VEVENT, VJOURNAL).',
|
||
|
|
'node' => $this,
|
||
|
|
];
|
||
|
|
}
|
||
|
|
if (count(array_unique($componentTypes)) > 1) {
|
||
|
|
$warnings[] = [
|
||
|
|
'level' => 3,
|
||
|
|
'message' => 'A calendar object on a CalDAV server may only have 1 type of component (VEVENT, VTODO or VJOURNAL).',
|
||
|
|
'node' => $this,
|
||
|
|
];
|
||
|
|
}
|
||
|
|
|
||
|
|
if (isset($this->METHOD)) {
|
||
|
|
$warnings[] = [
|
||
|
|
'level' => 3,
|
||
|
|
'message' => 'A calendar object on a CalDAV server MUST NOT have a METHOD property.',
|
||
|
|
'node' => $this,
|
||
|
|
];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $warnings;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns all components with a specific UID value.
|
||
|
|
*
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
public function getByUID($uid)
|
||
|
|
{
|
||
|
|
return array_filter($this->getComponents(), function ($item) use ($uid) {
|
||
|
|
if (!$itemUid = $item->select('UID')) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
$itemUid = current($itemUid)->getValue();
|
||
|
|
|
||
|
|
return $uid === $itemUid;
|
||
|
|
});
|
||
|
|
}
|
||
|
|
}
|