gnu-social/components/Attachment/Attachment.php

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<?php
declare(strict_types = 1);
// {{{ License
// This file is part of GNU social - https://www.gnu.org/software/social
//
// GNU social is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// GNU social is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with GNU social. If not, see <http://www.gnu.org/licenses/>.
// }}}
namespace Component\Attachment;
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use App\Core\Cache;
use App\Core\Event;
use App\Core\Modules\Component;
use App\Core\Router\RouteLoader;
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use App\Entity\Note;
use App\Util\Formatting;
use Component\Attachment\Controller as C;
use Component\Attachment\Entity as E;
use Doctrine\Common\Collections\ExpressionBuilder;
use Doctrine\ORM\Query\Expr;
use Doctrine\ORM\QueryBuilder;
class Attachment extends Component
{
public function onAddRoute(RouteLoader $r): bool
{
$r->connect('attachment_show', '/object/attachment/{id<\d+>}', [C\Attachment::class, 'attachment_show']);
$r->connect('attachment_view', '/object/attachment/{id<\d+>}/view', [C\Attachment::class, 'attachment_view']);
$r->connect('attachment_download', '/object/attachment/{id<\d+>}/download', [C\Attachment::class, 'attachment_download']);
$r->connect('attachment_thumbnail', '/object/attachment/{id<\d+>}/thumbnail/{size<big|medium|small>}', [C\Attachment::class, 'attachment_thumbnail']);
return Event::next;
}
/**
* Get a unique representation of a file on disk
*
* This can be used in the future to deduplicate images by visual content
*/
public function onHashFile(string $filename, ?string &$out_hash): bool
{
$out_hash = hash_file(E\Attachment::FILEHASH_ALGO, $filename);
return Event::stop;
}
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public function onNoteDeleteRelated(Note &$note): bool
{
Cache::delete("note-attachments-{$note->getId()}");
E\AttachmentToNote::removeWhereNoteId($note->getId());
foreach ($note->getAttachments() as $attachment) {
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$attachment->kill();
}
return Event::next;
}
public function onSearchQueryAddJoins(QueryBuilder &$note_qb, QueryBuilder &$actor_qb): bool
{
$note_qb->leftJoin(E\AttachmentToNote::class, 'attachment_to_note', Expr\Join::WITH, 'note.id = attachment_to_note.note_id');
return Event::next;
}
/**
* Populate $note_expr with the criteria for looking for notes with attachments
*/
public function onSearchCreateExpression(ExpressionBuilder $eb, string $term, ?string $language, &$note_expr, &$actor_expr): bool
{
$include_term = str_contains($term, ':') ? explode(':', $term)[1] : $term;
if (Formatting::startsWith($term, ['note-types:', 'notes-incude:', 'note-filter:'])) {
if (\is_null($note_expr)) {
$note_expr = [];
}
if (array_intersect(explode(',', $include_term), ['media', 'image', 'images', 'attachment']) !== []) {
$note_expr[] = $eb->neq('attachment_to_note.note_id', null);
} else {
$note_expr[] = $eb->eq('attachment_to_note.note_id', null);
}
}
return Event::next;
}
}