forked from mirror/Part-DB.Part-DB-server
117 lines
4.2 KiB
PHP
117 lines
4.2 KiB
PHP
<?php
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/**
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* This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
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*
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* Copyright (C) 2019 - 2020 Jan Böhmer (https://github.com/jbtronics)
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*
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* This program 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 as published
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* by the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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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
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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declare(strict_types=1);
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/**
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* This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
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*
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* Copyright (C) 2019 Jan Böhmer (https://github.com/jbtronics)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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namespace App\EntityListeners;
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use App\Entity\Attachments\Attachment;
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use App\Services\Attachments\AttachmentManager;
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use App\Services\Attachments\AttachmentPathResolver;
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use App\Services\Attachments\AttachmentReverseSearch;
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use Doctrine\ORM\Event\LifecycleEventArgs;
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use Doctrine\ORM\Event\PreUpdateEventArgs;
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use Doctrine\ORM\Mapping\PostRemove;
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use Doctrine\ORM\Mapping\PreUpdate;
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use SplFileInfo;
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/**
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* This listener watches for changes on attachments and deletes the files associated with an attachment, that are not
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* used any more. This can happens after an attachment is delteted or the path is changed.
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*/
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class AttachmentDeleteListener
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{
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protected $attachmentReverseSearch;
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protected $attachmentHelper;
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protected $pathResolver;
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public function __construct(AttachmentReverseSearch $attachmentReverseSearch, AttachmentManager $attachmentHelper, AttachmentPathResolver $pathResolver)
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{
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$this->attachmentReverseSearch = $attachmentReverseSearch;
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$this->attachmentHelper = $attachmentHelper;
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$this->pathResolver = $pathResolver;
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}
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/**
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* Removes the file associated with the attachment, if the file associated with the attachment changes.
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*
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* @PreUpdate
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*/
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public function preUpdateHandler(Attachment $attachment, PreUpdateEventArgs $event): void
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{
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if ($event->hasChangedField('path')) {
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$old_path = $event->getOldValue('path');
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//Dont delete file if the attachment uses a builtin ressource:
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if (Attachment::checkIfBuiltin($old_path)) {
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return;
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}
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$real_path = $this->pathResolver->placeholderToRealPath($old_path);
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//If the attachment does not point to a valid file, ignore it!
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if ($real_path === null) {
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return;
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}
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$file = new SplFileInfo($real_path);
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$this->attachmentReverseSearch->deleteIfNotUsed($file);
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}
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}
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/**
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* Removes the file associated with the attachment, after the attachment was deleted.
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*
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* @PostRemove
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*/
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public function postRemoveHandler(Attachment $attachment, LifecycleEventArgs $event): void
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{
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//Dont delete file if the attachment uses a builtin ressource:
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if ($attachment->isBuiltIn()) {
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return;
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}
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$file = $this->attachmentHelper->attachmentToFile($attachment);
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//Only delete if the attachment has a valid file.
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if (null !== $file) {
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$this->attachmentReverseSearch->deleteIfNotUsed($file);
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}
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}
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}
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