friendica-github/src/Module/ParseUrl.php

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<?php
/**
* @copyright Copyright (C) 2020, Friendica
*
* @license GNU AGPL version 3 or any later version
*
* This program 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.
*
* This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
namespace Friendica\Module;
use Friendica\BaseModule;
use Friendica\Content\Text\BBCode;
use Friendica\Core\Hook;
use Friendica\Core\Session;
use Friendica\Core\System;
use Friendica\Network\HTTPException\BadRequestException;
use Friendica\Util;
class ParseUrl extends BaseModule
{
public static function rawContent(array $parameters = [])
{
if (!Session::isAuthenticated()) {
throw new \Friendica\Network\HTTPException\ForbiddenException();
}
$format = '';
$title = '';
$description = '';
$ret = ['success' => false, 'contentType' => ''];
if (!empty($_GET['binurl']) && Util\Strings::isHex($_GET['binurl'])) {
$url = trim(hex2bin($_GET['binurl']));
} elseif (!empty($_GET['url'])) {
$url = trim($_GET['url']);
// fallback in case no url is valid
} else {
throw new BadRequestException('No url given');
}
if (!empty($_GET['title'])) {
$title = strip_tags(trim($_GET['title']));
}
if (!empty($_GET['description'])) {
$description = strip_tags(trim($_GET['description']));
}
if (!empty($_GET['tags'])) {
$arr_tags = Util\ParseUrl::convertTagsToArray($_GET['tags']);
if (count($arr_tags)) {
$str_tags = "\n" . implode(' ', $arr_tags) . "\n";
}
}
if (isset($_GET['format']) && $_GET['format'] == 'json') {
$format = 'json';
}
// Add url scheme if it is missing
$arrurl = parse_url($url);
if (empty($arrurl['scheme'])) {
if (!empty($arrurl['host'])) {
$url = 'http:' . $url;
} else {
$url = 'http://' . $url;
}
}
$arr = ['url' => $url, 'format' => $format, 'text' => null];
Hook::callAll('parse_link', $arr);
if ($arr['text']) {
if ($format == 'json') {
System::jsonExit($arr['text']);
} else {
echo $arr['text'];
exit();
}
}
if ($format == 'json') {
$siteinfo = Util\ParseUrl::getSiteinfoCached($url);
if (in_array($siteinfo['type'], ['image', 'video', 'audio'])) {
switch ($siteinfo['type']) {
case 'video':
$content_type = 'video';
break;
case 'audio':
$content_type = 'audio';
break;
default:
$content_type = 'image';
break;
}
$ret['contentType'] = $content_type;
$ret['data'] = ['url' => $url];
$ret['success'] = true;
} else {
unset($siteinfo['keywords']);
$ret['data'] = $siteinfo;
$ret['contentType'] = 'attachment';
$ret['success'] = true;
}
System::jsonExit($ret);
} else {
echo BBCode::embedURL($url, empty($_GET['noAttachment']), $title, $description, $_GET['tags'] ?? '');
exit();
}
}
}