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278 lines
8.3 KiB
PHP
278 lines
8.3 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* SPDX-FileCopyrightText: 2019 Nextcloud GmbH and Nextcloud contributors
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*/
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namespace OCA\WorkflowEngine\Entity;
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use OC\Files\Config\UserMountCache;
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use OCP\EventDispatcher\Event;
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use OCP\EventDispatcher\GenericEvent;
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use OCP\Files\InvalidPathException;
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use OCP\Files\IRootFolder;
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use OCP\Files\Mount\IMountManager;
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use OCP\Files\Node;
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use OCP\Files\NotFoundException;
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use OCP\IL10N;
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use OCP\IURLGenerator;
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use OCP\IUser;
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use OCP\IUserManager;
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use OCP\IUserSession;
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use OCP\SystemTag\ISystemTag;
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use OCP\SystemTag\ISystemTagManager;
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use OCP\SystemTag\MapperEvent;
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use OCP\WorkflowEngine\EntityContext\IContextPortation;
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use OCP\WorkflowEngine\EntityContext\IDisplayText;
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use OCP\WorkflowEngine\EntityContext\IIcon;
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use OCP\WorkflowEngine\EntityContext\IUrl;
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use OCP\WorkflowEngine\GenericEntityEvent;
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use OCP\WorkflowEngine\IEntity;
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use OCP\WorkflowEngine\IRuleMatcher;
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class File implements IEntity, IDisplayText, IUrl, IIcon, IContextPortation {
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private const EVENT_NAMESPACE = '\OCP\Files::';
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/** @var IL10N */
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protected $l10n;
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/** @var IURLGenerator */
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protected $urlGenerator;
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/** @var IRootFolder */
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protected $root;
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/** @var string */
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protected $eventName;
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/** @var Event */
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protected $event;
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/** @var IUserSession */
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private $userSession;
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/** @var ISystemTagManager */
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private $tagManager;
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/** @var ?Node */
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private $node;
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/** @var ?IUser */
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private $actingUser = null;
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/** @var IUserManager */
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private $userManager;
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/** @var UserMountCache */
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private $userMountCache;
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/** @var IMountManager */
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private $mountManager;
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public function __construct(
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IL10N $l10n,
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IURLGenerator $urlGenerator,
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IRootFolder $root,
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IUserSession $userSession,
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ISystemTagManager $tagManager,
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IUserManager $userManager,
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UserMountCache $userMountCache,
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IMountManager $mountManager
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) {
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$this->l10n = $l10n;
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$this->urlGenerator = $urlGenerator;
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$this->root = $root;
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$this->userSession = $userSession;
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$this->tagManager = $tagManager;
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$this->userManager = $userManager;
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$this->userMountCache = $userMountCache;
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$this->mountManager = $mountManager;
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}
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public function getName(): string {
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return $this->l10n->t('File');
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}
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public function getIcon(): string {
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return $this->urlGenerator->imagePath('core', 'categories/files.svg');
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}
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public function getEvents(): array {
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return [
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new GenericEntityEvent($this->l10n->t('File created'), self::EVENT_NAMESPACE . 'postCreate'),
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new GenericEntityEvent($this->l10n->t('File updated'), self::EVENT_NAMESPACE . 'postWrite'),
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new GenericEntityEvent($this->l10n->t('File renamed'), self::EVENT_NAMESPACE . 'postRename'),
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new GenericEntityEvent($this->l10n->t('File deleted'), self::EVENT_NAMESPACE . 'postDelete'),
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new GenericEntityEvent($this->l10n->t('File accessed'), self::EVENT_NAMESPACE . 'postTouch'),
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new GenericEntityEvent($this->l10n->t('File copied'), self::EVENT_NAMESPACE . 'postCopy'),
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new GenericEntityEvent($this->l10n->t('Tag assigned'), MapperEvent::EVENT_ASSIGN),
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];
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}
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public function prepareRuleMatcher(IRuleMatcher $ruleMatcher, string $eventName, Event $event): void {
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if (!$event instanceof GenericEvent && !$event instanceof MapperEvent) {
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return;
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}
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$this->eventName = $eventName;
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$this->event = $event;
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$this->actingUser = $this->actingUser ?? $this->userSession->getUser();
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try {
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$node = $this->getNode();
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$ruleMatcher->setEntitySubject($this, $node);
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$ruleMatcher->setFileInfo($node->getStorage(), $node->getInternalPath());
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} catch (NotFoundException $e) {
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// pass
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}
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}
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public function isLegitimatedForUserId(string $userId): bool {
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try {
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$node = $this->getNode();
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if ($node->getOwner()?->getUID() === $userId) {
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return true;
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}
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if ($this->eventName === self::EVENT_NAMESPACE . 'postDelete') {
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// At postDelete, the file no longer exists. Check for parent folder instead.
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$fileId = $node->getParentId();
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} else {
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$fileId = $node->getId();
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}
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$mountInfos = $this->userMountCache->getMountsForFileId($fileId, $userId);
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foreach ($mountInfos as $mountInfo) {
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$mount = $this->mountManager->getMountFromMountInfo($mountInfo);
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if ($mount && $mount->getStorage() && !empty($mount->getStorage()->getCache()->get($fileId))) {
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return true;
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}
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}
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return false;
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} catch (NotFoundException $e) {
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return false;
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}
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}
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/**
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* @throws NotFoundException
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*/
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protected function getNode(): Node {
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if ($this->node) {
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return $this->node;
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}
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if (!$this->event instanceof GenericEvent && !$this->event instanceof MapperEvent) {
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throw new NotFoundException();
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}
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switch ($this->eventName) {
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case self::EVENT_NAMESPACE . 'postCreate':
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case self::EVENT_NAMESPACE . 'postWrite':
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case self::EVENT_NAMESPACE . 'postDelete':
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case self::EVENT_NAMESPACE . 'postTouch':
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return $this->event->getSubject();
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case self::EVENT_NAMESPACE . 'postRename':
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case self::EVENT_NAMESPACE . 'postCopy':
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return $this->event->getSubject()[1];
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case MapperEvent::EVENT_ASSIGN:
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if (!$this->event instanceof MapperEvent || $this->event->getObjectType() !== 'files') {
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throw new NotFoundException();
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}
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$nodes = $this->root->getById((int)$this->event->getObjectId());
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if (is_array($nodes) && isset($nodes[0])) {
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$this->node = $nodes[0];
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return $this->node;
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}
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break;
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}
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throw new NotFoundException();
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}
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public function getDisplayText(int $verbosity = 0): string {
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try {
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$node = $this->getNode();
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} catch (NotFoundException $e) {
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return '';
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}
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$options = [
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$this->actingUser ? $this->actingUser->getDisplayName() : $this->l10n->t('Someone'),
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$node->getName()
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];
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switch ($this->eventName) {
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case self::EVENT_NAMESPACE . 'postCreate':
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return $this->l10n->t('%s created %s', $options);
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case self::EVENT_NAMESPACE . 'postWrite':
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return $this->l10n->t('%s modified %s', $options);
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case self::EVENT_NAMESPACE . 'postDelete':
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return $this->l10n->t('%s deleted %s', $options);
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case self::EVENT_NAMESPACE . 'postTouch':
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return $this->l10n->t('%s accessed %s', $options);
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case self::EVENT_NAMESPACE . 'postRename':
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return $this->l10n->t('%s renamed %s', $options);
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case self::EVENT_NAMESPACE . 'postCopy':
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return $this->l10n->t('%s copied %s', $options);
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case MapperEvent::EVENT_ASSIGN:
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$tagNames = [];
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if ($this->event instanceof MapperEvent) {
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$tagIDs = $this->event->getTags();
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$tagObjects = $this->tagManager->getTagsByIds($tagIDs);
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foreach ($tagObjects as $systemTag) {
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/** @var ISystemTag $systemTag */
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if ($systemTag->isUserVisible()) {
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$tagNames[] = $systemTag->getName();
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}
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}
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}
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$filename = array_pop($options);
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$tagString = implode(', ', $tagNames);
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if ($tagString === '') {
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return '';
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}
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array_push($options, $tagString, $filename);
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return $this->l10n->t('%s assigned %s to %s', $options);
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}
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}
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public function getUrl(): string {
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try {
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return $this->urlGenerator->linkToRouteAbsolute('files.viewcontroller.showFile', ['fileid' => $this->getNode()->getId()]);
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} catch (InvalidPathException $e) {
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return '';
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} catch (NotFoundException $e) {
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return '';
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}
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}
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/**
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* @inheritDoc
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*/
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public function exportContextIDs(): array {
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$nodeOwner = $this->getNode()->getOwner();
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$actingUserId = null;
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if ($this->actingUser instanceof IUser) {
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$actingUserId = $this->actingUser->getUID();
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} elseif ($this->userSession->getUser() instanceof IUser) {
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$actingUserId = $this->userSession->getUser()->getUID();
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}
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return [
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'eventName' => $this->eventName,
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'nodeId' => $this->getNode()->getId(),
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'nodeOwnerId' => $nodeOwner ? $nodeOwner->getUID() : null,
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'actingUserId' => $actingUserId,
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];
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}
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/**
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* @inheritDoc
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*/
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public function importContextIDs(array $contextIDs): void {
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$this->eventName = $contextIDs['eventName'];
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if ($contextIDs['nodeOwnerId'] !== null) {
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$userFolder = $this->root->getUserFolder($contextIDs['nodeOwnerId']);
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$nodes = $userFolder->getById($contextIDs['nodeId']);
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} else {
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$nodes = $this->root->getById($contextIDs['nodeId']);
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}
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$this->node = $nodes[0] ?? null;
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if ($contextIDs['actingUserId']) {
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$this->actingUser = $this->userManager->get($contextIDs['actingUserId']);
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}
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}
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/**
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* @inheritDoc
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*/
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public function getIconUrl(): string {
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return $this->getIcon();
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}
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}
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