gnu-social/plugins/OStatus/lib/util.php

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<?php
// This file is part of GNU social - https://www.gnu.org/software/social
//
// GNU social 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.
//
// GNU social 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 GNU social. If not, see <http://www.gnu.org/licenses/>.
defined('GNUSOCIAL') || die();
/**
* Pull (and store) remote profile from the its uri
*
* @param string $uri
* @return null|Ostatus_profile
*/
function pullRemoteProfile(string $uri): ?Ostatus_profile
{
$validate = new Validate();
try {
$uri = Discovery::normalize($uri);
} catch (Exception $e) {
return null;
}
try {
if (Discovery::isAcct($uri) && $validate->email(mb_substr($uri, 5))) {
$profile = Ostatus_profile::ensureWebfinger($uri);
} else if ($validate->uri($uri)) {
$profile = Ostatus_profile::ensureProfileURL($uri);
} else {
common_log(LOG_ERR, 'Invalid address format.');
return null;
}
return $profile;
} catch (FeedSubBadURLException $e) {
common_log(LOG_ERR, 'Invalid URL or could not reach server.');
} catch (FeedSubBadResponseException $e) {
common_log(LOG_ERR, 'Cannot read feed; server returned error.');
} catch (FeedSubEmptyException $e) {
common_log(LOG_ERR, 'Cannot read feed; server returned an empty page.');
} catch (FeedSubBadHTMLException $e) {
common_log(LOG_ERR, 'Bad HTML, could not find feed link.');
} catch (FeedSubNoFeedException $e) {
common_log(LOG_ERR, 'Could not find a feed linked from this URL.');
} catch (FeedSubUnrecognizedTypeException $e) {
common_log(LOG_ERR, 'Not a recognized feed type.');
} catch (FeedSubNoHubException $e) {
common_log(LOG_ERR, 'No hub found.');
} catch (Exception $e) {
common_log(LOG_ERR, sprintf('Bad feed URL: %s %s', get_class($e), $e->getMessage()));
}
return null;
}