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<?php
declare(strict_types=1);
/**
* @copyright Copyright (c) 2019 Arthur Schiwon <blizzz@arthur-schiwon.de>
*
* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
*
* @license GNU AGPL version 3 or any later version
*
* 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 OCA\WorkflowEngine\Entity;
use OCP\EventDispatcher\Event;
use OCP\EventDispatcher\GenericEvent;
use OCP\Files\IRootFolder;
use OCP\Files\Node;
use OCP\Files\NotFoundException;
use OCP\IL10N;
use OCP\ILogger;
use OCP\IURLGenerator;
use OCP\IUserSession;
use OCP\Share\IManager as ShareManager;
use OCP\SystemTag\ISystemTag;
use OCP\SystemTag\ISystemTagManager;
use OCP\SystemTag\MapperEvent;
use OCP\WorkflowEngine\EntityContext\IDisplayText;
use OCP\WorkflowEngine\GenericEntityEvent;
use OCP\WorkflowEngine\IEntity;
use OCP\WorkflowEngine\IRuleMatcher;
class File implements IEntity, IDisplayText {
private const EVENT_NAMESPACE = '\OCP\Files::';
/** @var IL10N */
protected $l10n;
/** @var IURLGenerator */
protected $urlGenerator;
/** @var IRootFolder */
protected $root;
/** @var ILogger */
protected $logger;
/** @var string */
protected $eventName;
/** @var Event */
protected $event;
/** @var ShareManager */
private $shareManager;
/** @var IUserSession */
private $userSession;
/** @var ISystemTagManager */
private $tagManager;
public function __construct(
IL10N $l10n,
IURLGenerator $urlGenerator,
IRootFolder $root,
ILogger $logger,
ShareManager $shareManager,
IUserSession $userSession,
ISystemTagManager $tagManager
) {
$this->l10n = $l10n;
$this->urlGenerator = $urlGenerator;
$this->root = $root;
$this->logger = $logger;
$this->shareManager = $shareManager;
$this->userSession = $userSession;
$this->tagManager = $tagManager;
}
public function getName(): string {
return $this->l10n->t('File');
}
public function getIcon(): string {
return $this->urlGenerator->imagePath('core', 'categories/files.svg');
}
public function getEvents(): array {
return [
new GenericEntityEvent($this->l10n->t('File created'), self::EVENT_NAMESPACE . 'postCreate'),
new GenericEntityEvent($this->l10n->t('File updated'), self::EVENT_NAMESPACE . 'postWrite'),
new GenericEntityEvent($this->l10n->t('File renamed'), self::EVENT_NAMESPACE . 'postRename'),
new GenericEntityEvent($this->l10n->t('File deleted'), self::EVENT_NAMESPACE . 'postDelete'),
new GenericEntityEvent($this->l10n->t('File accessed'), self::EVENT_NAMESPACE . 'postTouch'),
new GenericEntityEvent($this->l10n->t('File copied'), self::EVENT_NAMESPACE . 'postCopy'),
new GenericEntityEvent($this->l10n->t('Tag assigned'), MapperEvent::EVENT_ASSIGN),
];
}
public function prepareRuleMatcher(IRuleMatcher $ruleMatcher, string $eventName, Event $event): void {
if (!$event instanceof GenericEvent && !$event instanceof MapperEvent) {
return;
}
$this->eventName = $eventName;
$this->event = $event;
try {
$node = $this->getNode();
$ruleMatcher->setEntitySubject($this, $node);
} catch (NotFoundException $e) {
// pass
}
}
public function isLegitimatedForUserId(string $uid): bool {
try {
$node = $this->getNode();
if($node->getOwner()->getUID() === $uid) {
return true;
}
$acl = $this->shareManager->getAccessList($node, true, true);
return array_key_exists($uid, $acl['users']);
} catch (NotFoundException $e) {
return false;
}
}
/**
* @throws NotFoundException
*/
protected function getNode(): Node {
if (!$this->event instanceof GenericEvent && !$this->event instanceof MapperEvent) {
throw new NotFoundException();
}
switch ($this->eventName) {
case self::EVENT_NAMESPACE . 'postCreate':
case self::EVENT_NAMESPACE . 'postWrite':
case self::EVENT_NAMESPACE . 'postDelete':
case self::EVENT_NAMESPACE . 'postTouch':
return $this->event->getSubject();
case self::EVENT_NAMESPACE . 'postRename':
case self::EVENT_NAMESPACE . 'postCopy':
return $this->event->getSubject()[1];
case MapperEvent::EVENT_ASSIGN:
if (!$this->event instanceof MapperEvent || $this->event->getObjectType() !== 'files') {
throw new NotFoundException();
}
$nodes = $this->root->getById((int)$this->event->getObjectId());
if (is_array($nodes) && !empty($nodes)) {
return array_shift($nodes);
}
break;
}
throw new NotFoundException();
}
public function getDisplayText(int $verbosity = 0): string {
$user = $this->userSession->getUser();
try {
$node = $this->getNode();
} catch (NotFoundException $e) {
return '';
}
$options = [
$user ? $user->getDisplayName() : $this->t('Someone'),
$node->getName()
];
switch ($this->eventName) {
case self::EVENT_NAMESPACE . 'postCreate':
return $this->l10n->t('%s created %s', $options);
case self::EVENT_NAMESPACE . 'postWrite':
return $this->l10n->t('%s modified %s', $options);
case self::EVENT_NAMESPACE . 'postDelete':
return $this->l10n->t('%s deleted %s', $options);
case self::EVENT_NAMESPACE . 'postTouch':
return $this->l10n->t('%s accessed %s', $options);
case self::EVENT_NAMESPACE . 'postRename':
return $this->l10n->t('%s renamed %s', $options);
case self::EVENT_NAMESPACE . 'postCopy':
return $this->l10n->t('%s copied %s', $options);
case MapperEvent::EVENT_ASSIGN:
$tagNames = [];
if($this->event instanceof MapperEvent) {
$tagIDs = $this->event->getTags();
$tagObjects = $this->tagManager->getTagsByIds($tagIDs);
foreach ($tagObjects as $systemTag) {
/** @var ISystemTag $systemTag */
if($systemTag->isUserVisible()) {
$tagNames[] = $systemTag->getName();
}
}
}
$filename = array_pop($options);
$tagString = implode(', ', $tagNames);
if($tagString === '') {
return '';
}
array_push($options, $tagString, $filename);
return $this->l10n->t('%s assigned %s to %s', $options);
}
}
}
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