forked from GNUsocial/gnu-social
61 lines
2.1 KiB
PHP
61 lines
2.1 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\Link;
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use App\Core\DB\DB;
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use App\Core\Event;
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use App\Core\Modules\Component;
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use App\Entity;
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use App\Entity\NoteToLink;
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use App\Util\Common;
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use InvalidArgumentException;
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class Link 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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* Extract URLs from $content and create the appropriate Link and NoteToLink entities
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*/
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public function onProcessNoteContent(int $note_id, string $content)
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{
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if (Common::config('attachments', 'process_links')) {
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$matched_urls = [];
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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 = Entity\Link::getOrCreate($match[0])->getId();
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DB::persist(NoteToLink::create(['link_id' => $link_id, 'note_id' => $note_id]));
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} catch (InvalidArgumentException) {
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continue;
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}
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}
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}
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return Event::next;
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}
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}
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