3 * @copyright Copyright (C) 2010-2022, the Friendica project
5 * @license GNU AGPL version 3 or any later version
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU Affero General Public License as
9 * published by the Free Software Foundation, either version 3 of the
10 * License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU Affero General Public License for more details.
17 * You should have received a copy of the GNU Affero General Public License
18 * along with this program. If not, see <https://www.gnu.org/licenses/>.
22 namespace Friendica\Module\Diaspora;
24 use Friendica\BaseModule;
25 use Friendica\Core\Protocol;
26 use Friendica\Core\System;
28 use Friendica\Model\Item;
29 use Friendica\Model\Post;
30 use Friendica\Model\User;
31 use Friendica\Module\Response;
32 use Friendica\Network\HTTPException;
33 use Friendica\Protocol\Diaspora;
34 use Friendica\Util\Strings;
37 * This module is part of the Diaspora protocol.
38 * It is used for fetching single public posts.
40 class Fetch extends BaseModule
42 protected function rawContent(array $request = [])
44 if (empty($this->parameters['guid'])) {
45 throw new HTTPException\NotFoundException();
48 $guid = $this->parameters['guid'];
51 $condition = ['origin' => true, 'private' => [Item::PUBLIC, Item::UNLISTED], 'guid' => $guid,
52 'gravity' => [Item::GRAVITY_PARENT, Item::GRAVITY_COMMENT], 'network' => [Protocol::DFRN, Protocol::DIASPORA]];
53 $item = Post::selectFirst([], $condition);
55 $condition = ['guid' => $guid, 'network' => [Protocol::DFRN, Protocol::DIASPORA]];
56 $item = Post::selectFirst(['author-link'], $condition);
57 if (!empty($item["author-link"])) {
58 $parts = parse_url($item["author-link"]);
59 if (empty($parts["scheme"]) || empty($parts["host"])) {
60 throw new HTTPException\InternalServerErrorException();
62 $host = $parts["scheme"] . "://" . $parts["host"];
64 if (Strings::normaliseLink($host) != Strings::normaliseLink(DI::baseUrl()->get())) {
65 $location = $host . "/fetch/" . DI::args()->getArgv()[1] . "/" . urlencode($guid);
66 System::externalRedirect($location, 301);
70 throw new HTTPException\NotFoundException();
73 // Fetch some data from the author (We could combine both queries - but I think this is more readable)
74 $user = User::getOwnerDataById($item["uid"]);
76 throw new HTTPException\NotFoundException();
79 if ($item['gravity'] == Item::GRAVITY_PARENT) {
80 $status = Diaspora::buildStatus($item, $user);
82 $status = ['type' => 'comment', 'message' => Diaspora::createCommentSignature($item)];
85 $xml = Diaspora::buildPostXml($status["type"], $status["message"]);
88 System::httpExit(Diaspora::buildMagicEnvelope($xml, $user), Response::TYPE_XML, 'application/magic-envelope+xml');