forked from GNUsocial/gnu-social
Diogo Peralta Cordeiro
e385a9ac29
Introduce Encoder plugins Instead of abstract upload and thumb modules Ported attachment routes. In v3 thumbnail depends on existing attachment so route updated accordingly.
114 lines
3.7 KiB
PHP
114 lines
3.7 KiB
PHP
<?php
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// {{{ License
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// This file is part of GNU social - https://www.gnu.org/software/social
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//
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// GNU social 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 by
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// 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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// GNU social 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 GNU social. If not, see <http://www.gnu.org/licenses/>.
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// }}}
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namespace Plugin\ImageEncoder;
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use App\Core\Event;
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use function App\Core\I18n\_m;
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use App\Core\Log;
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use App\Core\Modules\Plugin;
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use App\Entity\Attachment;
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use App\Entity\AttachmentThumbnail;
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use App\Util\Common;
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use Exception;
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use Jcupitt\Vips;
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use Symfony\Component\HttpFoundation\File\File as SymfonyFile;
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class ImageEncoder extends Plugin
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{
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/**
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* Several obscure file types should be normalized to WebP on resize.
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*
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* Keeps only GIF (if animated) and WebP formats
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*
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* @return int
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*/
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public function preferredType(): int
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{
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if ($this->type == IMAGETYPE_GIF && $this->animated) {
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return $this->type;
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}
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return IMAGETYPE_WEBP;
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}
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/**
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* Encodes the image to self::preferredType() format ensuring it's valid.
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*
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* @param SymfonyFile $sfile i/o
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* @param null|string $mimetype out
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*
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* @return bool
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*/
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public function onAttachmentValidation(SymfonyFile &$sfile, ?string &$mimetype = null): bool
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{
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$original_mimetype = $mimetype ?? $sfile->getMimeType();
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// TODO: Encode in place
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$mimetype = self::preferredType();
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return Event::stop;
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}
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/**
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* Resizes an image. It will encode the image in the
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* `self::preferredType()` format. This only applies henceforward,
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* not retroactively
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*
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* Increases the 'memory_limit' to the one in the 'attachments' section in the config, to
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* enable the handling of bigger images, which can cause a peak of memory consumption, while
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* encoding
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*
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* @param Attachment $attachment
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* @param AttachmentThumbnail $thumbnail
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* @param int $width
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* @param int $height
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* @param bool $crop
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*
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* @throws Exception
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* @throws Vips\Exception
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*
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* @return bool
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*
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*/
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public function onResizeImage(Attachment $attachment, AttachmentThumbnail $thumbnail, int $width, int $height, bool $crop): bool
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{
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$old_limit = ini_set('memory_limit', Common::config('attachments', 'memory_limit'));
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try {
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// -1 means load all pages, 'sequential' access means decode pixels on demand
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// $image = Vips\Image::newFromFile(self::getPath($attachment), ['n' => -1, 'access' => 'sequential']);
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$image = Vips\Image::thumbnail($attachment->getPath(), $width, ['height' => $height]);
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} catch (Exception $e) {
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Log::error(__METHOD__ . ' encountered exception: ' . print_r($e, true));
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// TRANS: Exception thrown when trying to resize an unknown file type.
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throw new Exception(_m('Unknown file type'));
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}
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if ($attachment->getPath() === $thumbnail->getPath()) {
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@unlink($thumbnail->getPath());
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}
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$image->writeToFile($thumbnail->getPath());
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unset($image);
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ini_set('memory_limit', $old_limit); // Restore the old memory limit
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return Event::next;
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}
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}
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