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-rw-r--r--apps/workflowengine/lib/Entity/File.php256
1 files changed, 256 insertions, 0 deletions
diff --git a/apps/workflowengine/lib/Entity/File.php b/apps/workflowengine/lib/Entity/File.php
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+++ b/apps/workflowengine/lib/Entity/File.php
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+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2019 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+namespace OCA\WorkflowEngine\Entity;
+
+use OC\Files\Config\UserMountCache;
+use OCP\EventDispatcher\Event;
+use OCP\EventDispatcher\GenericEvent;
+use OCP\Files\InvalidPathException;
+use OCP\Files\IRootFolder;
+use OCP\Files\Mount\IMountManager;
+use OCP\Files\Node;
+use OCP\Files\NotFoundException;
+use OCP\IL10N;
+use OCP\IURLGenerator;
+use OCP\IUser;
+use OCP\IUserManager;
+use OCP\IUserSession;
+use OCP\SystemTag\ISystemTag;
+use OCP\SystemTag\ISystemTagManager;
+use OCP\SystemTag\MapperEvent;
+use OCP\WorkflowEngine\EntityContext\IContextPortation;
+use OCP\WorkflowEngine\EntityContext\IDisplayText;
+use OCP\WorkflowEngine\EntityContext\IIcon;
+use OCP\WorkflowEngine\EntityContext\IUrl;
+use OCP\WorkflowEngine\GenericEntityEvent;
+use OCP\WorkflowEngine\IEntity;
+use OCP\WorkflowEngine\IRuleMatcher;
+
+class File implements IEntity, IDisplayText, IUrl, IIcon, IContextPortation {
+ private const EVENT_NAMESPACE = '\OCP\Files::';
+ /** @var string */
+ protected $eventName;
+ /** @var Event */
+ protected $event;
+ /** @var ?Node */
+ private $node;
+ /** @var ?IUser */
+ private $actingUser = null;
+ /** @var UserMountCache */
+ private $userMountCache;
+
+ public function __construct(
+ protected IL10N $l10n,
+ protected IURLGenerator $urlGenerator,
+ protected IRootFolder $root,
+ private IUserSession $userSession,
+ private ISystemTagManager $tagManager,
+ private IUserManager $userManager,
+ UserMountCache $userMountCache,
+ private IMountManager $mountManager,
+ ) {
+ $this->userMountCache = $userMountCache;
+ }
+
+ 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;
+ $this->actingUser = $this->actingUser ?? $this->userSession->getUser();
+ try {
+ $node = $this->getNode();
+ $ruleMatcher->setEntitySubject($this, $node);
+ $ruleMatcher->setFileInfo($node->getStorage(), $node->getInternalPath());
+ } catch (NotFoundException $e) {
+ // pass
+ }
+ }
+
+ public function isLegitimatedForUserId(string $userId): bool {
+ try {
+ $node = $this->getNode();
+ if ($node->getOwner()?->getUID() === $userId) {
+ return true;
+ }
+
+ if ($this->eventName === self::EVENT_NAMESPACE . 'postDelete') {
+ // At postDelete, the file no longer exists. Check for parent folder instead.
+ $fileId = $node->getParentId();
+ } else {
+ $fileId = $node->getId();
+ }
+
+ $mountInfos = $this->userMountCache->getMountsForFileId($fileId, $userId);
+ foreach ($mountInfos as $mountInfo) {
+ $mount = $this->mountManager->getMountFromMountInfo($mountInfo);
+ if ($mount && $mount->getStorage() && !empty($mount->getStorage()->getCache()->get($fileId))) {
+ return true;
+ }
+ }
+ return false;
+ } catch (NotFoundException $e) {
+ return false;
+ }
+ }
+
+ /**
+ * @throws NotFoundException
+ */
+ protected function getNode(): Node {
+ if ($this->node) {
+ return $this->node;
+ }
+ if (!$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($nodes) && isset($nodes[0])) {
+ $this->node = $nodes[0];
+ return $this->node;
+ }
+ break;
+ }
+ throw new NotFoundException();
+ }
+
+ public function getDisplayText(int $verbosity = 0): string {
+ try {
+ $node = $this->getNode();
+ } catch (NotFoundException $e) {
+ return '';
+ }
+
+ $options = [
+ $this->actingUser ? $this->actingUser->getDisplayName() : $this->l10n->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);
+ }
+ }
+
+ public function getUrl(): string {
+ try {
+ return $this->urlGenerator->linkToRouteAbsolute('files.viewcontroller.showFile', ['fileid' => $this->getNode()->getId()]);
+ } catch (InvalidPathException $e) {
+ return '';
+ } catch (NotFoundException $e) {
+ return '';
+ }
+ }
+
+ /**
+ * @inheritDoc
+ */
+ public function exportContextIDs(): array {
+ $nodeOwner = $this->getNode()->getOwner();
+ $actingUserId = null;
+ if ($this->actingUser instanceof IUser) {
+ $actingUserId = $this->actingUser->getUID();
+ } elseif ($this->userSession->getUser() instanceof IUser) {
+ $actingUserId = $this->userSession->getUser()->getUID();
+ }
+ return [
+ 'eventName' => $this->eventName,
+ 'nodeId' => $this->getNode()->getId(),
+ 'nodeOwnerId' => $nodeOwner ? $nodeOwner->getUID() : null,
+ 'actingUserId' => $actingUserId,
+ ];
+ }
+
+ /**
+ * @inheritDoc
+ */
+ public function importContextIDs(array $contextIDs): void {
+ $this->eventName = $contextIDs['eventName'];
+ if ($contextIDs['nodeOwnerId'] !== null) {
+ $userFolder = $this->root->getUserFolder($contextIDs['nodeOwnerId']);
+ $nodes = $userFolder->getById($contextIDs['nodeId']);
+ } else {
+ $nodes = $this->root->getById($contextIDs['nodeId']);
+ }
+ $this->node = $nodes[0] ?? null;
+ if ($contextIDs['actingUserId']) {
+ $this->actingUser = $this->userManager->get($contextIDs['actingUserId']);
+ }
+ }
+
+ /**
+ * @inheritDoc
+ */
+ public function getIconUrl(): string {
+ return $this->getIcon();
+ }
+}