diff options
Diffstat (limited to 'apps/workflowengine/lib/Entity/File.php')
-rw-r--r-- | apps/workflowengine/lib/Entity/File.php | 256 |
1 files changed, 256 insertions, 0 deletions
diff --git a/apps/workflowengine/lib/Entity/File.php b/apps/workflowengine/lib/Entity/File.php new file mode 100644 index 00000000000..64d552e1737 --- /dev/null +++ b/apps/workflowengine/lib/Entity/File.php @@ -0,0 +1,256 @@ +<?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(); + } +} |