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CalendarHome.php
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CalendarHome.php
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<?php
namespace Sabre\CalDAV;
use Sabre\DAV;
use Sabre\DAV\Exception\NotFound;
use Sabre\DAV\MkCol;
use Sabre\DAVACL;
use Sabre\HTTP\URLUtil;
/**
* The CalendarHome represents a node that is usually in a users'
* calendar-homeset.
*
* It contains all the users' calendars, and can optionally contain a
* notifications collection, calendar subscriptions, a users' inbox, and a
* users' outbox.
*
* @copyright Copyright (C) 2007-2015 fruux GmbH (https://fruux.com/).
* @author Evert Pot (http://evertpot.com/)
* @license http://sabre.io/license/ Modified BSD License
*/
class CalendarHome implements DAV\IExtendedCollection, DAVACL\IACL {
/**
* CalDAV backend
*
* @var Sabre\CalDAV\Backend\BackendInterface
*/
protected $caldavBackend;
/**
* Principal information
*
* @var array
*/
protected $principalInfo;
/**
* Constructor
*
* @param Backend\BackendInterface $caldavBackend
* @param mixed $userUri
*/
function __construct(Backend\BackendInterface $caldavBackend, $principalInfo) {
$this->caldavBackend = $caldavBackend;
$this->principalInfo = $principalInfo;
}
/**
* Returns the name of this object
*
* @return string
*/
function getName() {
list(, $name) = URLUtil::splitPath($this->principalInfo['uri']);
return $name;
}
/**
* Updates the name of this object
*
* @param string $name
* @return void
*/
function setName($name) {
throw new DAV\Exception\Forbidden();
}
/**
* Deletes this object
*
* @return void
*/
function delete() {
throw new DAV\Exception\Forbidden();
}
/**
* Returns the last modification date
*
* @return int
*/
function getLastModified() {
return null;
}
/**
* Creates a new file under this object.
*
* This is currently not allowed
*
* @param string $filename
* @param resource $data
* @return void
*/
function createFile($filename, $data = null) {
throw new DAV\Exception\MethodNotAllowed('Creating new files in this collection is not supported');
}
/**
* Creates a new directory under this object.
*
* This is currently not allowed.
*
* @param string $filename
* @return void
*/
function createDirectory($filename) {
throw new DAV\Exception\MethodNotAllowed('Creating new collections in this collection is not supported');
}
/**
* Returns a single calendar, by name
*
* @param string $name
* @return Calendar
*/
function getChild($name) {
// Special nodes
if ($name === 'inbox' && $this->caldavBackend instanceof Backend\SchedulingSupport) {
return new Schedule\Inbox($this->caldavBackend, $this->principalInfo['uri']);
}
if ($name === 'outbox' && $this->caldavBackend instanceof Backend\SchedulingSupport) {
return new Schedule\Outbox($this->principalInfo['uri']);
}
if ($name === 'notifications' && $this->caldavBackend instanceof Backend\NotificationSupport) {
return new Notifications\Collection($this->caldavBackend, $this->principalInfo['uri']);
}
// Calendars
foreach ($this->caldavBackend->getCalendarsForUser($this->principalInfo['uri']) as $calendar) {
if ($calendar['uri'] === $name) {
if ($this->caldavBackend instanceof Backend\SharingSupport) {
if (isset($calendar['{http://calendarserver.org/ns/}shared-url'])) {
return new SharedCalendar($this->caldavBackend, $calendar);
} else {
return new ShareableCalendar($this->caldavBackend, $calendar);
}
} else {
return new Calendar($this->caldavBackend, $calendar);
}
}
}
if ($this->caldavBackend instanceof Backend\SubscriptionSupport) {
foreach ($this->caldavBackend->getSubscriptionsForUser($this->principalInfo['uri']) as $subscription) {
if ($subscription['uri'] === $name) {
return new Subscriptions\Subscription($this->caldavBackend, $subscription);
}
}
}
throw new NotFound('Node with name \'' . $name . '\' could not be found');
}
/**
* Checks if a calendar exists.
*
* @param string $name
* @return bool
*/
function childExists($name) {
try {
return !!$this->getChild($name);
} catch (NotFound $e) {
return false;
}
}
/**
* Returns a list of calendars
*
* @return array
*/
function getChildren() {
$calendars = $this->caldavBackend->getCalendarsForUser($this->principalInfo['uri']);
$objs = [];
foreach ($calendars as $calendar) {
if ($this->caldavBackend instanceof Backend\SharingSupport) {
if (isset($calendar['{http://calendarserver.org/ns/}shared-url'])) {
$objs[] = new SharedCalendar($this->caldavBackend, $calendar);
} else {
$objs[] = new ShareableCalendar($this->caldavBackend, $calendar);
}
} else {
$objs[] = new Calendar($this->caldavBackend, $calendar);
}
}
if ($this->caldavBackend instanceof Backend\SchedulingSupport) {
$objs[] = new Schedule\Inbox($this->caldavBackend, $this->principalInfo['uri']);
$objs[] = new Schedule\Outbox($this->principalInfo['uri']);
}
// We're adding a notifications node, if it's supported by the backend.
if ($this->caldavBackend instanceof Backend\NotificationSupport) {
$objs[] = new Notifications\Collection($this->caldavBackend, $this->principalInfo['uri']);
}
// If the backend supports subscriptions, we'll add those as well,
if ($this->caldavBackend instanceof Backend\SubscriptionSupport) {
foreach ($this->caldavBackend->getSubscriptionsForUser($this->principalInfo['uri']) as $subscription) {
$objs[] = new Subscriptions\Subscription($this->caldavBackend, $subscription);
}
}
return $objs;
}
/**
* Creates a new calendar or subscription.
*
* @param string $name
* @param MkCol $mkCol
* @throws DAV\Exception\InvalidResourceType
* @return void
*/
function createExtendedCollection($name, MkCol $mkCol) {
$isCalendar = false;
$isSubscription = false;
foreach ($mkCol->getResourceType() as $rt) {
switch ($rt) {
case '{DAV:}collection' :
case '{http://calendarserver.org/ns/}shared-owner' :
// ignore
break;
case '{urn:ietf:params:xml:ns:caldav}calendar' :
$isCalendar = true;
break;
case '{http://calendarserver.org/ns/}subscribed' :
$isSubscription = true;
break;
default :
throw new DAV\Exception\InvalidResourceType('Unknown resourceType: ' . $rt);
}
}
$properties = $mkCol->getRemainingValues();
$mkCol->setRemainingResultCode(201);
if ($isSubscription) {
if (!$this->caldavBackend instanceof Backend\SubscriptionSupport) {
throw new DAV\Exception\InvalidResourceType('This backend does not support subscriptions');
}
$this->caldavBackend->createSubscription($this->principalInfo['uri'], $name, $properties);
} elseif ($isCalendar) {
$this->caldavBackend->createCalendar($this->principalInfo['uri'], $name, $properties);
} else {
throw new DAV\Exception\InvalidResourceType('You can only create calendars and subscriptions in this collection');
}
}
/**
* Returns the owner principal
*
* This must be a url to a principal, or null if there's no owner
*
* @return string|null
*/
function getOwner() {
return $this->principalInfo['uri'];
}
/**
* Returns a group principal
*
* This must be a url to a principal, or null if there's no owner
*
* @return string|null
*/
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
*/
function getACL() {
return [
[
'privilege' => '{DAV:}read',
'principal' => $this->principalInfo['uri'],
'protected' => true,
],
[
'privilege' => '{DAV:}write',
'principal' => $this->principalInfo['uri'],
'protected' => true,
],
[
'privilege' => '{DAV:}read',
'principal' => $this->principalInfo['uri'] . '/calendar-proxy-write',
'protected' => true,
],
[
'privilege' => '{DAV:}write',
'principal' => $this->principalInfo['uri'] . '/calendar-proxy-write',
'protected' => true,
],
[
'privilege' => '{DAV:}read',
'principal' => $this->principalInfo['uri'] . '/calendar-proxy-read',
'protected' => true,
],
];
}
/**
* Updates the ACL
*
* This method will receive a list of new ACE's.
*
* @param array $acl
* @return void
*/
function setACL(array $acl) {
throw new 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
*/
function getSupportedPrivilegeSet() {
return null;
}
/**
* This method is called when a user replied to a request to share.
*
* This method should return the url of the newly created calendar if the
* share was accepted.
*
* @param string href The sharee who is replying (often a mailto: address)
* @param int status One of the SharingPlugin::STATUS_* constants
* @param string $calendarUri The url to the calendar thats being shared
* @param string $inReplyTo The unique id this message is a response to
* @param string $summary A description of the reply
* @return null|string
*/
function shareReply($href, $status, $calendarUri, $inReplyTo, $summary = null) {
if (!$this->caldavBackend instanceof Backend\SharingSupport) {
throw new DAV\Exception\NotImplemented('Sharing support is not implemented by this backend.');
}
return $this->caldavBackend->shareReply($href, $status, $calendarUri, $inReplyTo, $summary);
}
/**
* Searches through all of a users calendars and calendar objects to find
* an object with a specific UID.
*
* This method should return the path to this object, relative to the
* calendar home, so this path usually only contains two parts:
*
* calendarpath/objectpath.ics
*
* If the uid is not found, return null.
*
* This method should only consider * objects that the principal owns, so
* any calendars owned by other principals that also appear in this
* collection should be ignored.
*
* @param string $uid
* @return string|null
*/
function getCalendarObjectByUID($uid) {
return $this->caldavBackend->getCalendarObjectByUID($this->principalInfo['uri'], $uid);
}
}

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