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https://git.friendi.ca/friendica/friendica-addons.git
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366 lines
9.8 KiB
PHP
366 lines
9.8 KiB
PHP
<?php
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/**
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* This object represents a CalDAV calendar.
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*
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* A calendar can contain multiple TODO and or Events. These are represented
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* as Sabre_CalDAV_CalendarObject objects.
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*
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* @package Sabre
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* @subpackage CalDAV
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* @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved.
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* @author Evert Pot (http://www.rooftopsolutions.nl/)
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* @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
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*/
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class Sabre_CalDAV_Calendar implements Sabre_CalDAV_ICalendar, Sabre_DAV_IProperties, Sabre_DAVACL_IACL {
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/**
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* This is an array with calendar information
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*
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* @var array
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*/
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protected $calendarInfo;
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/**
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* CalDAV backend
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*
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* @var Sabre_CalDAV_Backend_BackendInterface
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*/
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protected $caldavBackend;
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/**
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* Principal backend
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*
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* @var Sabre_DAVACL_IPrincipalBackend
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*/
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protected $principalBackend;
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/**
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* Constructor
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*
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* @param Sabre_DAVACL_IPrincipalBackend $principalBackend
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* @param Sabre_CalDAV_Backend_BackendInterface $caldavBackend
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* @param array $calendarInfo
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*/
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public function __construct(Sabre_DAVACL_IPrincipalBackend $principalBackend, Sabre_CalDAV_Backend_BackendInterface $caldavBackend, $calendarInfo) {
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$this->caldavBackend = $caldavBackend;
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$this->principalBackend = $principalBackend;
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$this->calendarInfo = $calendarInfo;
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}
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/**
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* Returns the name of the calendar
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*
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* @return string
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*/
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public function getName() {
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return $this->calendarInfo['uri'];
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}
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/**
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* Updates properties such as the display name and description
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*
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* @param array $mutations
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* @return array
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*/
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public function updateProperties($mutations) {
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return $this->caldavBackend->updateCalendar($this->calendarInfo['id'],$mutations);
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}
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/**
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* Returns the list of properties
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*
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* @param array $requestedProperties
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* @return array
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*/
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public function getProperties($requestedProperties) {
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$response = array();
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foreach($requestedProperties as $prop) switch($prop) {
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case '{urn:ietf:params:xml:ns:caldav}supported-calendar-data' :
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$response[$prop] = new Sabre_CalDAV_Property_SupportedCalendarData();
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break;
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case '{urn:ietf:params:xml:ns:caldav}supported-collation-set' :
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$response[$prop] = new Sabre_CalDAV_Property_SupportedCollationSet();
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break;
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case '{DAV:}owner' :
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$response[$prop] = new Sabre_DAVACL_Property_Principal(Sabre_DAVACL_Property_Principal::HREF,$this->calendarInfo['principaluri']);
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break;
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default :
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if (isset($this->calendarInfo[$prop])) $response[$prop] = $this->calendarInfo[$prop];
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break;
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}
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return $response;
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}
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/**
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* Returns a calendar object
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*
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* The contained calendar objects are for example Events or Todo's.
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*
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* @param string $name
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* @return Sabre_CalDAV_ICalendarObject
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*/
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public function getChild($name) {
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$obj = $this->caldavBackend->getCalendarObject($this->calendarInfo['id'],$name);
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if (!$obj) throw new Sabre_DAV_Exception_NotFound('Calendar object not found');
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return new Sabre_CalDAV_CalendarObject($this->caldavBackend,$this->calendarInfo,$obj);
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}
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/**
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* Returns the full list of calendar objects
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*
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* @return array
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*/
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public function getChildren() {
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$objs = $this->caldavBackend->getCalendarObjects($this->calendarInfo['id']);
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$children = array();
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foreach($objs as $obj) {
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$children[] = new Sabre_CalDAV_CalendarObject($this->caldavBackend,$this->calendarInfo,$obj);
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}
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return $children;
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}
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/**
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* Checks if a child-node exists.
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*
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* @param string $name
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* @return bool
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*/
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public function childExists($name) {
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$obj = $this->caldavBackend->getCalendarObject($this->calendarInfo['id'],$name);
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if (!$obj)
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return false;
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else
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return true;
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}
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/**
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* Creates a new directory
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*
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* We actually block this, as subdirectories are not allowed in calendars.
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*
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* @param string $name
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* @return void
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*/
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public function createDirectory($name) {
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throw new Sabre_DAV_Exception_MethodNotAllowed('Creating collections in calendar objects is not allowed');
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}
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/**
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* Creates a new file
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*
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* The contents of the new file must be a valid ICalendar string.
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*
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* @param string $name
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* @param resource $calendarData
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* @return string|null
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*/
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public function createFile($name,$calendarData = null) {
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if (is_resource($calendarData)) {
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$calendarData = stream_get_contents($calendarData);
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}
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return $this->caldavBackend->createCalendarObject($this->calendarInfo['id'],$name,$calendarData);
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}
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/**
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* Deletes the calendar.
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*
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* @return void
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*/
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public function delete() {
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$this->caldavBackend->deleteCalendar($this->calendarInfo['id']);
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}
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/**
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* Renames the calendar. Note that most calendars use the
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* {DAV:}displayname to display a name to display a name.
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*
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* @param string $newName
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* @return void
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*/
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public function setName($newName) {
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throw new Sabre_DAV_Exception_MethodNotAllowed('Renaming calendars is not yet supported');
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}
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/**
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* Returns the last modification date as a unix timestamp.
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*
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* @return void
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*/
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public function getLastModified() {
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return null;
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}
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/**
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* Returns the owner principal
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*
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* This must be a url to a principal, or null if there's no owner
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*
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* @return string|null
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*/
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public function getOwner() {
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return $this->calendarInfo['principaluri'];
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}
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/**
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* Returns a group principal
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*
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* This must be a url to a principal, or null if there's no owner
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*
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* @return string|null
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*/
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public function getGroup() {
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return null;
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}
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/**
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* Returns a list of ACE's for this node.
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*
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* Each ACE has the following properties:
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* * 'privilege', a string such as {DAV:}read or {DAV:}write. These are
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* currently the only supported privileges
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* * 'principal', a url to the principal who owns the node
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* * 'protected' (optional), indicating that this ACE is not allowed to
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* be updated.
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*
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* @return array
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*/
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public function getACL() {
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return array(
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array(
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'privilege' => '{DAV:}read',
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'principal' => $this->calendarInfo['principaluri'],
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'protected' => true,
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),
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array(
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'privilege' => '{DAV:}write',
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'principal' => $this->calendarInfo['principaluri'],
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'protected' => true,
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),
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array(
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'privilege' => '{DAV:}read',
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'principal' => $this->calendarInfo['principaluri'] . '/calendar-proxy-write',
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'protected' => true,
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),
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array(
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'privilege' => '{DAV:}write',
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'principal' => $this->calendarInfo['principaluri'] . '/calendar-proxy-write',
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'protected' => true,
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),
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array(
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'privilege' => '{DAV:}read',
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'principal' => $this->calendarInfo['principaluri'] . '/calendar-proxy-read',
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'protected' => true,
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),
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array(
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'privilege' => '{' . Sabre_CalDAV_Plugin::NS_CALDAV . '}read-free-busy',
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'principal' => '{DAV:}authenticated',
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'protected' => true,
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),
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);
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}
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/**
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* Updates the ACL
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*
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* This method will receive a list of new ACE's.
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*
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* @param array $acl
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* @return void
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*/
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public function setACL(array $acl) {
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throw new Sabre_DAV_Exception_MethodNotAllowed('Changing ACL is not yet supported');
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}
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/**
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* Returns the list of supported privileges for this node.
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*
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* The returned data structure is a list of nested privileges.
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* See Sabre_DAVACL_Plugin::getDefaultSupportedPrivilegeSet for a simple
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* standard structure.
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*
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* If null is returned from this method, the default privilege set is used,
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* which is fine for most common usecases.
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*
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* @return array|null
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*/
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public function getSupportedPrivilegeSet() {
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$default = Sabre_DAVACL_Plugin::getDefaultSupportedPrivilegeSet();
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// We need to inject 'read-free-busy' in the tree, aggregated under
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// {DAV:}read.
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foreach($default['aggregates'] as &$agg) {
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if ($agg['privilege'] !== '{DAV:}read') continue;
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$agg['aggregates'][] = array(
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'privilege' => '{' . Sabre_CalDAV_Plugin::NS_CALDAV . '}read-free-busy',
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);
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}
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return $default;
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}
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/**
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* Performs a calendar-query on the contents of this calendar.
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*
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* The calendar-query is defined in RFC4791 : CalDAV. Using the
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* calendar-query it is possible for a client to request a specific set of
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* object, based on contents of iCalendar properties, date-ranges and
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* iCalendar component types (VTODO, VEVENT).
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*
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* This method should just return a list of (relative) urls that match this
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* query.
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*
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* The list of filters are specified as an array. The exact array is
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* documented by Sabre_CalDAV_CalendarQueryParser.
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*
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* @param array $filters
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* @return array
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*/
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public function calendarQuery(array $filters) {
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return $this->caldavBackend->calendarQuery($this->calendarInfo['id'], $filters);
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}
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}
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