236 lines
10 KiB
PHP
236 lines
10 KiB
PHP
<?php
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declare(strict_types = 1);
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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 Component\Posting;
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use App\Core\Cache;
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use App\Core\DB\DB;
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use App\Core\Event;
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use App\Core\Form;
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use App\Core\GSFile;
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use function App\Core\I18n\_m;
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use App\Core\Modules\Component;
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use App\Core\Security;
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use App\Entity\Actor;
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use App\Entity\ActorToAttachment;
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use App\Entity\Attachment;
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use App\Entity\AttachmentToNote;
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use App\Entity\Language;
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use App\Entity\Note;
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use App\Util\Common;
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use App\Util\Exception\ClientException;
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use App\Util\Exception\InvalidFormException;
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use App\Util\Exception\RedirectException;
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use App\Util\Exception\ServerException;
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use App\Util\Formatting;
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use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
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use Symfony\Component\Form\Extension\Core\Type\FileType;
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use Symfony\Component\Form\Extension\Core\Type\SubmitType;
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use Symfony\Component\Form\Extension\Core\Type\TextareaType;
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use Symfony\Component\HttpFoundation\File\Exception\FormSizeFileException;
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use Symfony\Component\HttpFoundation\File\UploadedFile;
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use Symfony\Component\Validator\Constraints\Length;
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class Posting extends Component
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{
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/**
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* HTML render event handler responsible for adding and handling
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* the result of adding the note submission form, only if a user is logged in
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*
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* @throws ClientException
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* @throws RedirectException
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* @throws ServerException
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*/
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public function onAppendRightPostingBlock(array $vars, array &$res): bool
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{
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if (($user = Common::user()) === null) {
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return Event::next;
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}
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$actor = $user->getActor();
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$actor_id = $user->getId();
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$to_tags = [];
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$tags = Cache::get(
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"actor-circle-{$actor_id}",
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fn () => DB::dql('select c.tag from App\Entity\ActorCircle c where c.tagger = :tagger', ['tagger' => $actor_id]),
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);
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foreach ($tags as $t) {
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$t = $t['tag'];
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$to_tags[$t] = $t;
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}
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$placeholder_strings = ['How are you feeling?', 'Have something to share?', 'How was your day?'];
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Event::handle('PostingPlaceHolderString', [&$placeholder_strings]);
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$placeholder = $placeholder_strings[array_rand($placeholder_strings)];
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$initial_content = '';
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Event::handle('PostingInitialContent', [&$initial_content]);
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$available_content_types = [
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'Plain Text' => 'text/plain',
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];
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Event::handle('PostingAvailableContentTypes', [&$available_content_types]);
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$context_actor = null; // This is where we'd plug in the group in which the actor is posting, or whom they're replying to
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$language_choices = Language::getLanguageChoices();
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$preferred_language_choices = $actor->getPreferredLanguageChoices($context_actor);
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ksort($language_choices);
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if (Common::config('posting', 'use_short_language_display')) {
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$key = array_key_first($preferred_language_choices);
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$locale = $preferred_language_choices[$key];
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unset($preferred_language_choices[$key], $language_choices[$key]);
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$short_display = Cache::getHashMapKey('languages', $locale)->getShortDisplay();
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$preferred_language_choices[$short_display] = trim($locale);
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$language_choices[$short_display] = trim($locale);
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}
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$request = $vars['request'];
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$form_params = [
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['to', ChoiceType::class, ['label' => _m('To:'), 'multiple' => false, 'expanded' => false, 'choices' => $to_tags]],
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['visibility', ChoiceType::class, ['label' => _m('Visibility:'), 'multiple' => false, 'expanded' => false, 'data' => 'public', 'choices' => [_m('Public') => 'public', _m('Instance') => 'instance', _m('Private') => 'private']]],
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['content', TextareaType::class, ['label' => _m('Content:'), 'data' => $initial_content, 'attr' => ['placeholder' => _m($placeholder)], 'constraints' => [new Length(['max' => Common::config('site', 'text_limit')])]]],
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['attachments', FileType::class, ['label' => _m('Attachments:'), 'multiple' => true, 'required' => false, 'invalid_message' => _m('Attachment not valid.')]],
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['language', ChoiceType::class, ['label' => _m('Note language:'), 'preferred_choices' => $preferred_language_choices, 'choices' => $language_choices, 'required' => true, 'multiple' => false]],
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];
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if (\count($available_content_types) > 1) {
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$form_params[] = ['content_type', ChoiceType::class,
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[
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'label' => _m('Text format:'), 'multiple' => false, 'expanded' => false,
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'data' => $available_content_types[array_key_first($available_content_types)],
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'choices' => $available_content_types,
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],
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];
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}
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$form_params[] = ['post_note', SubmitType::class, ['label' => _m('Post')]];
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$form = Form::create($form_params);
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$form->handleRequest($request);
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if ($form->isSubmitted()) {
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try {
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if ($form->isValid()) {
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$data = $form->getData();
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$content_type = $data['content_type'] ?? $available_content_types[array_key_first($available_content_types)];
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self::storeLocalNote($user->getActor(), $data['content'], $content_type, $data['attachments']);
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throw new RedirectException();
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}
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} catch (FormSizeFileException $sizeFileException) {
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throw new FormSizeFileException();
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} catch (InvalidFormException $invalidFormException) {
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throw new InvalidFormException();
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}
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}
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$res = $form->createView();
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return Event::next;
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}
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/**
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* Store the given note with $content and $attachments, created by
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* $actor_id, possibly as a reply to note $reply_to and with flag
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* $is_local. Sanitizes $content and $attachments
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*
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* @throws ClientException
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* @throws ServerException
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*/
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public static function storeLocalNote(Actor $actor, string $content, string $content_type, array $attachments, ?Note $reply_to = null, ?Note $repeat_of = null)
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{
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$rendered = null;
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Event::handle('RenderNoteContent', [$content, $content_type, &$rendered, $actor, $reply_to]);
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$note = Note::create([
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'actor_id' => $actor->getId(),
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'content' => $content,
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'content_type' => $content_type,
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'rendered' => $rendered,
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'is_local' => true,
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]);
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$processed_attachments = [];
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/** @var UploadedFile[] $attachments */
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foreach ($attachments as $f) {
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$filesize = $f->getSize();
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$max_file_size = Common::getUploadLimit();
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if ($max_file_size < $filesize) {
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throw new ClientException(_m('No file may be larger than {quota} bytes and the file you sent was {size} bytes. '
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. 'Try to upload a smaller version.', ['quota' => $max_file_size, 'size' => $filesize], ));
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}
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Event::handle('EnforceUserFileQuota', [$filesize, $actor->getId()]);
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$processed_attachments[] = [GSFile::storeFileAsAttachment($f), $f->getClientOriginalName()];
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}
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DB::persist($note);
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// Need file and note ids for the next step
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Event::handle('ProcessNoteContent', [$note, $content, $content_type]);
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if ($processed_attachments !== []) {
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foreach ($processed_attachments as [$a, $fname]) {
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if (DB::count('actor_to_attachment', $args = ['attachment_id' => $a->getId(), 'actor_id' => $actor->getId()]) === 0) {
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DB::persist(ActorToAttachment::create($args));
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}
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DB::persist(AttachmentToNote::create(['attachment_id' => $a->getId(), 'note_id' => $note->getId(), 'title' => $fname]));
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}
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}
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DB::flush();
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}
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public function onRenderNoteContent(string $content, string $content_type, ?string &$rendered, Actor $author, ?Note $reply_to = null)
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{
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switch ($content_type) {
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case 'text/plain':
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$rendered = Formatting::renderPlainText($content);
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$rendered = Formatting::linkifyMentions($rendered, $author, $reply_to);
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return Event::stop;
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case 'text/html':
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// TODO: It has to linkify and stuff as well
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$rendered = Security::sanitize($content);
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return Event::stop;
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default:
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return Event::next;
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}
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}
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/**
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* Get a unique representation of a file on disk
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*
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* This can be used in the future to deduplicate images by visual content
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*/
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public function onHashFile(string $filename, ?string &$out_hash): bool
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{
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$out_hash = hash_file(Attachment::FILEHASH_ALGO, $filename);
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return Event::stop;
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}
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/**
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* Fill the list with allowed sizes for an attachment, to prevent potential DoS'ing by requesting thousands of different thumbnail sizes
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*/
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public function onGetAllowedThumbnailSizes(?array &$sizes): bool
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{
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$sizes[] = ['width' => Common::config('thumbnail', 'width'), 'height' => Common::config('thumbnail', 'height')];
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return Event::next;
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}
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}
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