mirror of https://github.com/friendica/friendica
91 lines
3.0 KiB
PHP
91 lines
3.0 KiB
PHP
<?php
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/**
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* @copyright Copyright (C) 2010-2022, the Friendica project
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program 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
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
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*
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*/
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namespace Friendica\Module\Diaspora;
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use Friendica\BaseModule;
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use Friendica\Core\Protocol;
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use Friendica\Core\System;
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use Friendica\DI;
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use Friendica\Model\Item;
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use Friendica\Model\Post;
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use Friendica\Model\User;
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use Friendica\Module\Response;
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use Friendica\Network\HTTPException;
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use Friendica\Protocol\Diaspora;
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use Friendica\Util\Strings;
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/**
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* This module is part of the Diaspora protocol.
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* It is used for fetching single public posts.
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*/
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class Fetch extends BaseModule
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{
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protected function rawContent(array $request = [])
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{
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if (empty($this->parameters['guid'])) {
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throw new HTTPException\NotFoundException();
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}
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$guid = $this->parameters['guid'];
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// Fetch the item
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$condition = ['origin' => true, 'private' => [Item::PUBLIC, Item::UNLISTED], 'guid' => $guid,
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'gravity' => [GRAVITY_PARENT, GRAVITY_COMMENT], 'network' => [Protocol::DFRN, Protocol::DIASPORA]];
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$item = Post::selectFirst([], $condition);
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if (empty($item)) {
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$condition = ['guid' => $guid, 'network' => [Protocol::DFRN, Protocol::DIASPORA]];
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$item = Post::selectFirst(['author-link'], $condition);
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if (!empty($item["author-link"])) {
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$parts = parse_url($item["author-link"]);
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if (empty($parts["scheme"]) || empty($parts["host"])) {
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throw new HTTPException\InternalServerErrorException();
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}
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$host = $parts["scheme"] . "://" . $parts["host"];
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if (Strings::normaliseLink($host) != Strings::normaliseLink(DI::baseUrl()->get())) {
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$location = $host . "/fetch/" . DI::args()->getArgv()[1] . "/" . urlencode($guid);
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System::externalRedirect($location, 301);
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}
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}
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throw new HTTPException\NotFoundException();
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}
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// Fetch some data from the author (We could combine both queries - but I think this is more readable)
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$user = User::getOwnerDataById($item["uid"]);
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if (!$user) {
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throw new HTTPException\NotFoundException();
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}
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if ($item['gravity'] == GRAVITY_PARENT) {
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$status = Diaspora::buildStatus($item, $user);
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} else {
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$status = ['type' => 'comment', 'message' => Diaspora::createCommentSignature($item)];
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}
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$xml = Diaspora::buildPostXml($status["type"], $status["message"]);
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// Send the envelope
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System::httpExit(Diaspora::buildMagicEnvelope($xml, $user), Response::TYPE_XML, 'application/magic-envelope+xml');
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}
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}
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