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+<?php
+
+/**
+ * CalDAV scheduling inbox for the Kolab.
+ *
+ * @author Thomas Bruederli <bruederli@kolabsys.com>
+ *
+ * Copyright (C) 2013, Kolab Systems AG <contact@kolabsys.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+namespace Kolab\CalDAV\Schedule;
+
+use Sabre\DAV;
+use Sabre\CalDAV;
+use Sabre\DAVACL;
+
+/**
+ * The CalDAV scheduling inbox
+ */
+class Inbox extends DAV\Collection implements DAV\ICollection, DAVACL\IACL
+{
+ /**
+ * The principal Uri
+ *
+ * @var string
+ */
+ protected $principalUri;
+
+ protected $principalId;
+
+ /**
+ * CalDAV backend
+ *
+ * @var Sabre\CalDAV\Backend\BackendInterface
+ */
+ protected $caldavBackend;
+
+ /**
+ * Constructor
+ *
+ * @param string $principalUri
+ */
+ public function __construct(CalDAV\Backend\BackendInterface $caldavBackend, $principalUri)
+ {
+ $this->caldavBackend = $caldavBackend;
+
+ $principal = explode('/', $principalUri);
+ $this->principalId = end($principal);
+ $this->principalUri = $principalUri;
+
+ $this->calendarInfo = array(
+ 'id' => 'inbox',
+ 'principaluri' => $principalUri,
+ );
+ }
+
+ /**
+ * Provide the URL for the default calendar for event scheduling
+ */
+ public function schedule_default_calendar_url()
+ {
+ if ($cal = $this->caldavBackend->get_default_calendar()) {
+ return $this->principalId . '/' . $cal['uri'];
+ }
+
+ return false;
+ }
+
+ /**
+ * Returns the name of the node.
+ *
+ * This is used to generate the url.
+ *
+ * @return string
+ */
+ public function getName()
+ {
+ console(__METHOD__);
+ return 'inbox';
+ }
+
+ /**
+ * Returns an array with all the child nodes
+ *
+ * @return \Sabre\DAV\INode[]
+ */
+ public function getChildren()
+ {
+ console(__METHOD__);
+
+ $children = array();
+ $objs = $this->caldavBackend->getSchedulingInboxObjects();
+ foreach ($objs as $obj) {
+ $children[] = new CalDAV\CalendarObject($this->caldavBackend, $this->calendarInfo, $obj);
+ }
+
+ return $children;
+ }
+
+ /**
+ * Returns a child object, by its name.
+ *
+ * @param string $name
+ * @throws Exception\NotFound
+ * @return INode
+ */
+ public function getChild($name)
+ {
+ console(__METHOD__, $name);
+
+ // TODO: improve this
+ $objs = $this->caldavBackend->getSchedulingInboxObjects();
+ foreach ($objs as $obj) {
+ if ($obj['uri'] == $name) {
+ return new CalDAV\CalendarObject($this->caldavBackend, $this->calendarInfo, $obj);
+ }
+ }
+
+ throw new DAV\Exception\NotFound('File not found: ' . $name);
+ }
+
+ /**
+ * Checks is a child-node exists.
+ *
+ * @param string $name
+ * @return bool
+ */
+ public function childExists($name)
+ {
+ console(__METHOD__, $name);
+
+ // TODO: improve this
+ $objs = $this->caldavBackend->getSchedulingInboxObjects();
+ foreach ($objs as $obj) {
+ if ($obj['uri'] == $name) {
+ return true;
+ }
+ }
+
+ return false;
+ }
+
+ /**
+ * 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->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' => '{' . CalDAV\Plugin::NS_CALDAV . '}schedule-deliver-invite',
+ 'principal' => $this->getOwner(),
+ 'protected' => true,
+ ),
+ array(
+ 'privilege' => '{' . CalDAV\Plugin::NS_CALDAV . '}schedule-deliver-reply',
+ 'principal' => $this->getOwner(),
+ 'protected' => true,
+ ),
+ array(
+ 'privilege' => '{DAV:}read',
+ 'principal' => $this->getOwner(),
+ 'protected' => true,
+ ),
+ array(
+ 'privilege' => '{DAV:}unbind',
+ 'principal' => $this->getOwner(),
+ '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 DAV\Exception\MethodNotAllowed('You\'re not allowed to update the ACL');
+ }
+
+ /**
+ * 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 = DAVACL\Plugin::getDefaultSupportedPrivilegeSet();
+
+ $default['aggregates'][] = array(
+ 'privilege' => '{' . CalDAV\Plugin::NS_CALDAV . '}schedule-deliver-invite',
+ );
+ $default['aggregates'][] = array(
+ 'privilege' => '{' . CalDAV\Plugin::NS_CALDAV . '}schedule-deliver-reply',
+ );
+
+ return $default;
+ }
+
+}