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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 MastodonProvider implements ISocialProvider {
/** @var IClientService */
private $httpClient;
/** @var string */
public $name = "mastodon";
public function __construct(IClientService $httpClient) {
$this->httpClient = $httpClient->NewClient();
}
/**
* Returns if this provider supports this contact
*
* @param {array} contact info
*
* @return bool
*/
public function supportsContact(array $contact):bool {
$profiles = $this->getProfileIds($contact);
return isset($profiles) && count($profiles) > 0;
}
/**
* Returns all possible profile-picture urls
*
* @param {array} contact information
*
* @return array
*/
public function getImageUrls(array $contact):array {
$profileIds = $this->getProfileIds($contact);
$urls = [];
foreach ($profileIds as $profileId) {
$url = $this->getImageUrl($profileId);
if (isset($url)) {
$urls[] = $url;
}
}
return $urls;
}
/**
* Returns the profile-picture url
*
* @param {array} contact information
*
* @return string|null
*/
public function getImageUrl(string $profileUrl):?string {
try {
$result = $this->httpClient->get($profileUrl);
$htmlResult = new \DOMDocument();
$htmlResult->loadHTML($result->getBody());
$img = $htmlResult->getElementById('profile_page_avatar');
if (!is_null($img)) {
return $img->getAttribute("data-original");
}
return null;
} catch (\Exception $e) {
return null;
}
}
/**
* Returns all possible profile ids for contact
*
* @param {array} contact information
*
* @return array of possible profileIds
*/
protected function getProfileIds($contact):array {
$socialprofiles = $contact['X-SOCIALPROFILE'];
$profileIds = [];
if (isset($socialprofiles)) {
foreach ($socialprofiles as $profile) {
if (strtolower($profile['type']) == $this->name) {
$profileId = $this->cleanupId($profile['value']);
if (isset($profileId)) {
$profileIds[] = $profileId;
}
}
}
}
return $profileIds;
}
/**
* Returns the profile-id
*
* @param {string} the value from the contact's x-socialprofile
*
* @return string
*/
protected function cleanupId(string $candidate):?string {
$candidate = preg_replace('/^' . preg_quote('x-apple:', '/') . '/', '', $candidate);
try {
if (strpos($candidate, 'http') !== 0) {
$user_server = explode('@', $candidate);
$candidate = 'https://' . array_pop($user_server) . '/@' . array_pop($user_server);
}
} catch (\Exception $e) {
$candidate = null;
}
return $candidate;
}
}
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