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<?php |
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/** |
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* @copyright Copyright (c) 2016, ownCloud, Inc. |
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* |
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* @author Georg Ehrke <[email protected]> |
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* @author Joas Schilling <[email protected]> |
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* @author Lukas Reschke <[email protected]> |
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* @author Roeland Jago Douma <[email protected]> |
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* @author Thomas Citharel <[email protected]> |
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* @author Thomas Müller <[email protected]> |
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* |
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* @license AGPL-3.0 |
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* |
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* This code is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Affero General Public License, version 3, |
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* as published by the Free Software Foundation. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Affero General Public License for more details. |
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* |
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* You should have received a copy of the GNU Affero General Public License, version 3, |
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* along with this program. If not, see <http://www.gnu.org/licenses/> |
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* |
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*/ |
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namespace OCA\DAV\CalDAV; |
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use OCA\DAV\DAV\Sharing\IShareable; |
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use OCA\DAV\Exception\UnsupportedLimitOnInitialSyncException; |
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use OCP\IConfig; |
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use OCP\IL10N; |
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use Sabre\CalDAV\Backend\BackendInterface; |
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use Sabre\DAV\Exception\Forbidden; |
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use Sabre\DAV\Exception\NotFound; |
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use Sabre\DAV\PropPatch; |
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/** |
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* Class Calendar |
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* |
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* @package OCA\DAV\CalDAV |
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* @property BackendInterface|CalDavBackend $caldavBackend |
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*/ |
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class Calendar extends \Sabre\CalDAV\Calendar implements IShareable { |
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/** @var IConfig */ |
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private $config; |
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public function __construct(BackendInterface $caldavBackend, $calendarInfo, IL10N $l10n, IConfig $config) { |
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parent::__construct($caldavBackend, $calendarInfo); |
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if ($this->getName() === BirthdayService::BIRTHDAY_CALENDAR_URI) { |
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$this->calendarInfo['{DAV:}displayname'] = $l10n->t('Contact birthdays'); |
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} |
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if ($this->getName() === CalDavBackend::PERSONAL_CALENDAR_URI && |
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$this->calendarInfo['{DAV:}displayname'] === CalDavBackend::PERSONAL_CALENDAR_NAME) { |
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$this->calendarInfo['{DAV:}displayname'] = $l10n->t('Personal'); |
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} |
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$this->config = $config; |
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} |
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/** |
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* Updates the list of shares. |
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* |
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* The first array is a list of people that are to be added to the |
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* resource. |
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* |
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* Every element in the add array has the following properties: |
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* * href - A url. Usually a mailto: address |
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* * commonName - Usually a first and last name, or false |
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* * summary - A description of the share, can also be false |
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* * readOnly - A boolean value |
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* |
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* Every element in the remove array is just the address string. |
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* |
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* @param array $add |
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* @param array $remove |
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* @return void |
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* @throws Forbidden |
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*/ |
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public function updateShares(array $add, array $remove) { |
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if ($this->isShared()) { |
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throw new Forbidden(); |
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} |
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$this->caldavBackend->updateShares($this, $add, $remove); |
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} |
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/** |
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* Returns the list of people whom this resource is shared with. |
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* |
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* Every element in this array should have the following properties: |
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* * href - Often a mailto: address |
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* * commonName - Optional, for example a first + last name |
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* * status - See the Sabre\CalDAV\SharingPlugin::STATUS_ constants. |
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* * readOnly - boolean |
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* * summary - Optional, a description for the share |
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* |
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* @return array |
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*/ |
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public function getShares() { |
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if ($this->isShared()) { |
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return []; |
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} |
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return $this->caldavBackend->getShares($this->getResourceId()); |
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} |
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/** |
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* @return int |
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*/ |
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public function getResourceId() { |
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return $this->calendarInfo['id']; |
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} |
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/** |
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* @return string |
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*/ |
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public function getPrincipalURI() { |
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return $this->calendarInfo['principaluri']; |
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} |
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public function getACL() { |
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$acl = [ |
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[ |
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'privilege' => '{DAV:}read', |
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'principal' => $this->getOwner(), |
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'protected' => true, |
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]]; |
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if ($this->getName() !== BirthdayService::BIRTHDAY_CALENDAR_URI) { |
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$acl[] = [ |
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'privilege' => '{DAV:}write', |
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'principal' => $this->getOwner(), |
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'protected' => true, |
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]; |
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} else { |
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$acl[] = [ |
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'privilege' => '{DAV:}write-properties', |
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'principal' => $this->getOwner(), |
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'protected' => true, |
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]; |
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} |
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if (!$this->isShared()) { |
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return $acl; |
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} |
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if ($this->getOwner() !== parent::getOwner()) { |
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$acl[] = [ |
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'privilege' => '{DAV:}read', |
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'principal' => parent::getOwner(), |
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'protected' => true, |
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]; |
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if ($this->canWrite()) { |
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$acl[] = [ |
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'privilege' => '{DAV:}write', |
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'principal' => parent::getOwner(), |
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'protected' => true, |
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]; |
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} else { |
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$acl[] = [ |
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'privilege' => '{DAV:}write-properties', |
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'principal' => parent::getOwner(), |
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'protected' => true, |
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]; |
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} |
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} |
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if ($this->isPublic()) { |
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$acl[] = [ |
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'privilege' => '{DAV:}read', |
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'principal' => 'principals/system/public', |
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'protected' => true, |
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]; |
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} |
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$acl = $this->caldavBackend->applyShareAcl($this->getResourceId(), $acl); |
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$allowedPrincipals = [$this->getOwner(), parent::getOwner(), 'principals/system/public']; |
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return array_filter($acl, function($rule) use ($allowedPrincipals) { |
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return \in_array($rule['principal'], $allowedPrincipals, true); |
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}); |
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} |
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public function getChildACL() { |
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return $this->getACL(); |
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} |
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public function getOwner() { |
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if (isset($this->calendarInfo['{http://owncloud.org/ns}owner-principal'])) { |
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return $this->calendarInfo['{http://owncloud.org/ns}owner-principal']; |
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} |
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return parent::getOwner(); |
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} |
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public function delete() { |
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if (isset($this->calendarInfo['{http://owncloud.org/ns}owner-principal']) && |
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$this->calendarInfo['{http://owncloud.org/ns}owner-principal'] !== $this->calendarInfo['principaluri']) { |
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$principal = 'principal:' . parent::getOwner(); |
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$shares = $this->caldavBackend->getShares($this->getResourceId()); |
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$shares = array_filter($shares, function($share) use ($principal){ |
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return $share['href'] === $principal; |
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}); |
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if (empty($shares)) { |
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throw new Forbidden(); |
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} |
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$this->caldavBackend->updateShares($this, [], [ |
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$principal |
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]); |
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return; |
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} |
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// Remember when a user deleted their birthday calendar |
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// in order to not regenerate it on the next contacts change |
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if ($this->getName() === BirthdayService::BIRTHDAY_CALENDAR_URI) { |
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$principalURI = $this->getPrincipalURI(); |
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$userId = substr($principalURI, 17); |
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$this->config->setUserValue($userId, 'dav', 'generateBirthdayCalendar', 'no'); |
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} |
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parent::delete(); |
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} |
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public function propPatch(PropPatch $propPatch) { |
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// parent::propPatch will only update calendars table |
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// if calendar is shared, changes have to be made to the properties table |
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if (!$this->isShared()) { |
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parent::propPatch($propPatch); |
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} |
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} |
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public function getChild($name) { |
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$obj = $this->caldavBackend->getCalendarObject($this->calendarInfo['id'], $name); |
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if (!$obj) { |
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throw new NotFound('Calendar object not found'); |
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} |
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if ($obj['classification'] === CalDavBackend::CLASSIFICATION_PRIVATE && $this->isShared()) { |
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throw new NotFound('Calendar object not found'); |
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} |
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$obj['acl'] = $this->getChildACL(); |
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return new CalendarObject($this->caldavBackend, $this->calendarInfo, $obj); |
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} |
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public function getChildren() { |
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$objs = $this->caldavBackend->getCalendarObjects($this->calendarInfo['id']); |
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$children = []; |
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foreach ($objs as $obj) { |
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if ($obj['classification'] === CalDavBackend::CLASSIFICATION_PRIVATE && $this->isShared()) { |
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continue; |
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} |
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$obj['acl'] = $this->getChildACL(); |
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$children[] = new CalendarObject($this->caldavBackend, $this->calendarInfo, $obj); |
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} |
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return $children; |
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} |
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public function getMultipleChildren(array $paths) { |
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$objs = $this->caldavBackend->getMultipleCalendarObjects($this->calendarInfo['id'], $paths); |
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$children = []; |
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foreach ($objs as $obj) { |
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if ($obj['classification'] === CalDavBackend::CLASSIFICATION_PRIVATE && $this->isShared()) { |
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continue; |
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} |
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$obj['acl'] = $this->getChildACL(); |
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$children[] = new CalendarObject($this->caldavBackend, $this->calendarInfo, $obj); |
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} |
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return $children; |
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} |
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public function childExists($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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} |
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if ($obj['classification'] === CalDavBackend::CLASSIFICATION_PRIVATE && $this->isShared()) { |
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return false; |
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} |
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return true; |
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} |
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public function calendarQuery(array $filters) { |
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$uris = $this->caldavBackend->calendarQuery($this->calendarInfo['id'], $filters); |
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if ($this->isShared()) { |
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return array_filter($uris, function ($uri) { |
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return $this->childExists($uri); |
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}); |
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} |
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return $uris; |
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} |
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/** |
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* @param boolean $value |
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* @return string|null |
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*/ |
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public function setPublishStatus($value) { |
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$publicUri = $this->caldavBackend->setPublishStatus($value, $this); |
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$this->calendarInfo['publicuri'] = $publicUri; |
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return $publicUri; |
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} |
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/** |
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* @return mixed $value |
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*/ |
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public function getPublishStatus() { |
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return $this->caldavBackend->getPublishStatus($this); |
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} |
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private function canWrite() { |
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if (isset($this->calendarInfo['{http://owncloud.org/ns}read-only'])) { |
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return !$this->calendarInfo['{http://owncloud.org/ns}read-only']; |
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} |
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return true; |
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} |
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private function isPublic() { |
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return isset($this->calendarInfo['{http://owncloud.org/ns}public']); |
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} |
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protected function isShared() { |
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if (!isset($this->calendarInfo['{http://owncloud.org/ns}owner-principal'])) { |
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return false; |
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} |
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return $this->calendarInfo['{http://owncloud.org/ns}owner-principal'] !== $this->calendarInfo['principaluri']; |
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} |
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public function isSubscription() { |
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return isset($this->calendarInfo['{http://calendarserver.org/ns/}source']); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function getChanges($syncToken, $syncLevel, $limit = null) { |
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if (!$syncToken && $limit) { |
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throw new UnsupportedLimitOnInitialSyncException(); |
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} |
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return parent::getChanges($syncToken, $syncLevel, $limit); |
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} |
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} |
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