185 lines
7.5 KiB
PHP
185 lines
7.5 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 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\Entity\Attachment;
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use App\Entity\AttachmentToNote;
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use App\Entity\GSActorToAttachment;
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use App\Entity\Link;
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use App\Entity\Note;
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use App\Entity\NoteToLink;
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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 InvalidArgumentException;
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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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class Posting extends Component
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{
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/**
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* "Perfect URL Regex", courtesy of https://urlregex.com/
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*/
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const URL_REGEX = <<<END
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%(?:(?:https?|ftp)://)(?:\\S+(?::\\S*)?@|\\d{1,3}(?:\\.\\d{1,3}){3}|(?:(?:[a-z\\d\\x{00a1}-\\x{ffff}]+-?)*[a-z\\d\\x{00a1}-\\x{ffff}]+)(?:\\.(?:[a-z\\d\\x{00a1}-\\x{ffff}]+-?)*[a-z\\d\\x{00a1}-\\x{ffff}]+)*(?:\\.[a-z\\x{00a1}-\\x{ffff}]{2,6}))(?::\\d+)?(?:[^\\s]*)?%iu
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END;
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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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public function onStartTwigPopulateVars(array &$vars): bool
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{
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if (($user = Common::user()) == null) {
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return Event::next;
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}
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$actor_id = $user->getId();
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$to_tags = [];
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$tags = Cache::get("actor-tags-{$actor_id}", function () use ($actor_id) {
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return DB::dql('select c.tag from App\Entity\GSActorCircle 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_string = ['How are you feeling?', 'Have something to share?', 'How was your day?'];
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Event::handle('PostingPlaceHolderString', [&$placeholder_string]);
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$rand_key = array_rand($placeholder_string);
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$request = $vars['request'];
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$form = Form::create([
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['content', TextareaType::class, ['label' => ' ', 'data' => '', 'attr' => ['placeholder' => _m($placeholder_string[$rand_key])]]],
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['attachments', FileType::class, ['label' => ' ', 'data' => null, 'multiple' => true, 'required' => false]],
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['visibility', ChoiceType::class, ['label' => _m('Visibility:'), 'expanded' => true, 'data' => 'public', 'choices' => [_m('Public') => 'public', _m('Instance') => 'instance', _m('Private') => 'private']]],
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['to', ChoiceType::class, ['label' => _m('To:'), 'multiple' => true, 'expanded' => true, 'choices' => $to_tags]],
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['post_note', SubmitType::class, ['label' => _m('Post')]],
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]);
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$form->handleRequest($request);
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if ($form->isSubmitted()) {
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$data = $form->getData();
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if ($form->isValid()) {
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self::storeNote($actor_id, $data['content'], $data['attachments'], $is_local = true);
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throw new RedirectException();
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} else {
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throw new InvalidFormException();
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}
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}
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$vars['post_form'] = $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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public static function storeNote(int $actor_id, ?string $content, array $attachments, bool $is_local, ?int $reply_to = null, ?int $repeat_of = null)
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{
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$note = Note::create([
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'gsactor_id' => $actor_id,
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'content' => $content,
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'is_local' => $is_local,
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'reply_to' => $reply_to,
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'repeat_of' => $repeat_of,
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]);
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$processed_attachments = [];
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foreach ($attachments as $f) { // where $f is a Symfony\Component\HttpFoundation\File\UploadedFile
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$filesize = $f->getSize();
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$max_file_size = Common::config('attachments', 'file_quota');
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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, $actor_id]);
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$processed_attachments[] = [GSFile::sanitizeAndStoreFileAsAttachment($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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DB::flush();
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if ($processed_attachments != []) {
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foreach ($processed_attachments as [$a, $fname]) {
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if (empty(DB::findBy('gsactor_to_attachment', ['attachment_id' => $a->getId(), 'gsactor_id' => $actor_id]))) {
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DB::persist(GSActorToAttachment::create(['attachment_id' => $a->getId(), 'gsactor_id' => $actor_id]));
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}
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DB::persist(AttachmentToNote::create(['attachment_id' => $a->getId(), 'note_id' => $note->getId(), 'title' => $fname]));
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}
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DB::flush();
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}
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if (Common::config('attachments', 'process_links')) {
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$matched_urls = [];
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$processed_urls = false;
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preg_match_all(self::URL_REGEX, $content, $matched_urls, PREG_SET_ORDER);
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foreach ($matched_urls as $match) {
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try {
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$link_id = Link::getOrCreate($match[0])->getId();
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DB::persist(NoteToLink::create(['link_id' => $link_id, 'note_id' => $note->getId()]));
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$processed_urls = true;
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} catch (InvalidArgumentException) {
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continue;
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}
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}
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if ($processed_urls) {
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DB::flush();
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}
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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)
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{
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$out_hash = hash_file(Attachment::FILEHASH_ALGO, $filename);
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return Event::stop;
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}
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/**
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* Fill the list of allowed sizes for an attachment, to prevent potential DoS'ing by requesting thousands of different thumbnail sizes
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*/
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public function onGetAllowedThumbnailSizes(?array &$sizes)
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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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