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\Worker;
26 use Friendica\Core\Logger;
27 use Friendica\Model\Profile;
28 use Friendica\Model\User;
29 use Friendica\Network\HTTPClient\Client\HttpClientAccept;
30 use Friendica\Network\HTTPClient\Client\HttpClientOptions;
31 use Friendica\Util\Network;
32 use Friendica\Util\Strings;
34 /* This class is used to verify the homepage link of a user profile.
35 * To do so, we look for rel="me" links in the given homepage, if one
36 * of them points to the Friendica profile of the user, a verification
37 * mark is added to the link.
39 * To reverse the process, if a homepage link is given, it is displayed
40 * with the rel="me" attribute as well, so that 3rd party tools can
41 * verify the connection between the two pages.
43 * This task will be performed by the worker on a daily basis _and_ every
44 * time the user changes their homepage link. In the first case the priority
45 * of the task is set to LOW, with the second case it is MEDIUM.
47 * rel-me microformat docs https://microformats.org/wiki/rel-me
49 class CheckRelMeProfileLink
51 /* Cheks the homepage of a profile for a rel-me link back to the user profile
53 * @param $uid (int) the UID of the user
55 public static function execute(int $uid)
57 Logger::notice('Verifying the homepage', ['uid' => $uid]);
58 Profile::update(['homepage_verified' => false], $uid);
59 $homepageUrlVerified = false;
60 $owner = User::getOwnerDataById($uid);
61 if (!empty($owner['homepage'])) {
62 $xrd_timeout = DI::config()->get('system', 'xrd_timeout');
63 $curlResult = DI::httpClient()->get($owner['homepage'], $accept_content = HttpClientAccept::HTML, [HttpClientOptions::TIMEOUT => $xrd_timeout]);
64 if ($curlResult->isSuccess()) {
65 $content = $curlResult->getBody();
67 Logger::notice('Empty body of the fetched homepage link). Cannot verify the relation to profile of UID %s.', ['uid' => $uid, 'owner homepage' => $owner['homepage']]);
69 $doc = new DOMDocument();
70 @$doc->loadHTML($content);
72 Logger::notice('Could not parse the content');
74 foreach ($doc->getElementsByTagName('a') as $link) {
75 $rel = $link->getAttribute('rel');
77 $href = $link->getAttribute('href');
78 if (!$homepageUrlVerified && Network::isValidHttpUrl($href)) {
79 $homepageUrlVerified = Strings::compareLink($owner['url'], $href);
84 if ($homepageUrlVerified) {
85 Profile::update(['homepage_verified' => true], $uid);
86 Logger::notice('Homepage URL verified', ['uid' => $uid, 'owner homepage' => $owner['homepage']]);
88 Logger::notice('Homepage URL could not be verified', ['uid' => $uid, 'owner homepage' => $owner['homepage']]);
92 Logger::notice('Could not cURL the homepage URL', ['owner homepage' => $owner['homepage']]);
95 Logger::notice('The user has no homepage link.', ['uid' => $uid]);