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