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<?php |
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/** |
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* |
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* part-db version 0.1 |
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* Copyright (C) 2005 Christoph Lechner |
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* http://www.cl-projects.de/ |
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* |
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* part-db version 0.2+ |
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* Copyright (C) 2009 K. Jacobs and others (see authors.php) |
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* http://code.google.com/p/part-db/ |
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* |
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* Part-DB Version 0.4+ |
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* Copyright (C) 2016 - 2019 Jan Böhmer |
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* 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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*/ |
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namespace App\Services\Attachments; |
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use App\Entity\Attachments\Attachment; |
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use App\Services\AttachmentHelper; |
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use Liip\ImagineBundle\Service\FilterService; |
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use Symfony\Component\Asset\Package; |
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use Symfony\Component\Asset\Packages; |
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use Symfony\Component\Routing\Generator\UrlGeneratorInterface; |
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class AttachmentURLGenerator |
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{ |
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protected $assets; |
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protected $public_path; |
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protected $pathResolver; |
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protected $urlGenerator; |
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protected $attachmentHelper; |
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protected $filterService; |
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public function __construct(Packages $assets, AttachmentPathResolver $pathResolver, |
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UrlGeneratorInterface $urlGenerator, AttachmentHelper $attachmentHelper, |
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FilterService $filterService) |
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{ |
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$this->assets = $assets; |
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$this->pathResolver = $pathResolver; |
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$this->urlGenerator = $urlGenerator; |
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$this->attachmentHelper = $attachmentHelper; |
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$this->filterService = $filterService; |
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//Determine a normalized path to the public folder (assets are relative to this folder) |
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$this->public_path = $this->pathResolver->parameterToAbsolutePath('public'); |
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} |
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/** |
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* Converts the absolute file path to a version relative to the public folder, that can be passed to asset |
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* Asset Component functions. |
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* @param string $absolute_path The absolute path that should be converted. |
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* @param string|null $public_path The public path to which the relative pathes should be created. |
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* The path must NOT have a trailing slash! |
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* If this is set to null, the global public/ folder is used. |
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* @return string|null The relative version of the string. Null if the absolute path was not a child folder |
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* of public path |
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*/ |
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public function absolutePathToAssetPath(string $absolute_path, ?string $public_path = null) : ?string |
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{ |
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if ($public_path === null) { |
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$public_path = $this->public_path; |
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} |
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//Our absolute path must begin with public path or we can not use it for asset pathes. |
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if (strpos($absolute_path, $public_path) !== 0) { |
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return null; |
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} |
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//Return the part relative after public path. |
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return substr($absolute_path, strlen($public_path) + 1); |
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} |
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/** |
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* Returns a URL under which the attachment file can be viewed. |
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* @param Attachment $attachment |
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* @return string |
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*/ |
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public function getViewURL(Attachment $attachment) : string |
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{ |
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$absolute_path = $this->attachmentHelper->toAbsoluteFilePath($attachment); |
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if ($absolute_path === null) { |
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throw new \RuntimeException( |
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'The given attachment is external or has no valid file, so no URL can get generated for it! |
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Use Attachment::getURL() to get the external URL!' |
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); |
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} |
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$asset_path = $this->absolutePathToAssetPath($absolute_path); |
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//If path is not relative to public path or marked as secure, serve it via controller |
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if ($asset_path === null || $attachment->isSecure()) { |
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return $this->urlGenerator->generate('attachment_view', ['id' => $attachment->getID()]); |
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} |
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//Otherwise we can serve the relative path via Asset component |
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return $this->assets->getUrl($asset_path); |
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} |
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/** |
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* Returns a URL to an thumbnail of the attachment file. |
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* @param Attachment $attachment |
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* @param string $filter_name |
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* @return string |
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*/ |
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public function getThumbnailURL(Attachment $attachment, string $filter_name = 'thumbnail_sm') : string |
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{ |
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if (!$attachment->isPicture()) { |
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throw new \InvalidArgumentException('Thumbnail creation only works for picture attachments!'); |
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} |
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$absolute_path = $this->attachmentHelper->toAbsoluteFilePath($attachment); |
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if ($absolute_path === null) { |
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throw new \RuntimeException( |
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'The given attachment is external or has no valid file, so no URL can get generated for it! |
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Use Attachment::getURL() to get the external URL!' |
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); |
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} |
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$asset_path = $this->absolutePathToAssetPath($absolute_path); |
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//If path is not relative to public path or marked as secure, serve it via controller |
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if ($asset_path === null || $attachment->isSecure()) { |
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return $this->urlGenerator->generate('attachment_view', ['id' => $attachment->getID()]); |
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} |
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//Otherwise we can serve the relative path via Asset component |
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return $this->filterService->getUrlOfFilteredImage($asset_path, 'thumbnail_sm'); |
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} |
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/** |
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* Returns a download link to the file associated with the attachment |
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* @param Attachment $attachment |
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* @return string |
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*/ |
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public function getDownloadURL(Attachment $attachment) : string |
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{ |
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//Redirect always to download controller, which sets the correct headers for downloading: |
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$this->urlGenerator->generate('attachment_download', ['id' => $attachment->getID()]); |
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} |
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} |
This check looks for parameters that have been defined for a function or method, but which are not used in the method body.