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<?php
/**
* @copyright Copyright (c) 2020 Matthias Heinisch <nextcloud@matthiasheinisch.de>
*
* @author Matthias Heinisch <nextcloud@matthiasheinisch.de>
*
* @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 <http://www.gnu.org/licenses/>.
*
*/
namespace OCA\Contacts\Service\Social;
use OCP\Http\Client\IClientService;
class DiasporaProvider implements ISocialProvider {
/** @var IClientService */
private $httpClient;
/** @var boolean */
private $looping;
public function __construct(IClientService $httpClient) {
$this->httpClient = $httpClient->NewClient();
$this->looping = false;
}
/**
* Returns the profile-id
*
* @param {string} the value from the contact's x-socialprofile
*
* @return string
*/
public function cleanupId(string $candidate):string {
try {
if (strpos($candidate, 'http') !== 0) {
$user_server = explode('@', $candidate);
$candidate = 'https://' . array_pop($user_server) . '/public/' . array_pop($user_server) . '.atom';
}
} catch (Exception $e) {
$candidate = null;
}
return $candidate;
}
/**
* Returns the profile-picture url
*
* @param {string} profileId the profile-id
*
* @return string|null
*/
public function getImageUrl(string $profileUrl):?string {
try {
$result = $this->httpClient->get($profileUrl);
$htmlResult = $result->getBody();
$avatar = '/.*<logo>(.*)<\/logo>.*/';
if (preg_match($avatar, $htmlResult, $matches)) {
return (str_replace("small", "large", $matches[1]));
}
// keyword not found, second try:
if (!$this->looping) {
$this->looping = true;
$atom = '/.*<link rel="alternate" href="(.*.atom)".*/';
if (preg_match($atom, $htmlResult, $matches)) {
return ($this->getImageUrl($matches[1]));
}
}
return null;
} catch (Exception $e) {
return null;
}
}
}
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