Current File : //www/varak.net/nextcloud.varak.net/apps_old/apps/contacts/lib/Service/Social/FacebookProvider.php
<?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\IClient;
use OCP\Http\Client\IClientService;
class FacebookProvider implements ISocialProvider {
/** @var IClient */
private $httpClient;
/** @var string */
public $name = 'facebook';
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 {
if (!array_key_exists('X-SOCIALPROFILE', $contact)) {
return false;
}
$socialprofiles = $this->getProfiles($contact);
return isset($socialprofiles) && count($socialprofiles) > 0;
}
/**
* Returns the profile-picture url
*
* @param {array} contact information
*
* @return array
*/
public function getImageUrls(array $contact):array {
$profileIds = $this->getProfileIds($contact);
$urls = [];
foreach ($profileIds as $profileId) {
$recipe = 'https://graph.facebook.com/{socialId}/picture?width=720';
$connector = str_replace('{socialId}', $profileId, $recipe);
$urls[] = $connector;
}
return $urls;
}
/**
* Returns the profile-id
*
* @param {string} the value from the contact's x-socialprofile
*
* @return string
*/
protected function cleanupId(string $candidate):string {
$candidate = basename($candidate);
if (!is_numeric($candidate)) {
$candidate = $this->findFacebookId($candidate);
}
return $candidate;
}
/**
* Returns all possible profile ids for contact
*
* @param {array} contact information
*
* @return array of string profile ids
*/
protected function getProfiles(array $contact):array {
$socialprofiles = $contact['X-SOCIALPROFILE'];
$profiles = [];
if (isset($socialprofiles)) {
foreach ($socialprofiles as $profile) {
if (strtolower($profile['type']) == $this->name) {
$profiles[] = $profile['value'];
}
}
}
return $profiles;
}
/**
* Returns all possible profile ids for contact
*
* @param {array} contact information
*
* @return array of string profile ids
*/
protected function getProfileIds(array $contact):array {
$profiles = $this->getProfiles($contact);
$profileIds = [];
foreach ($profiles as $profile) {
$profileIds[] = $this->cleanupId($profile);
}
return $profileIds;
}
/**
* Tries to get the facebook id from facebook profile name
* e. g. "zuck" --> "4"
* Fallback: return profile name
* (will give oauth error from facebook except if profile is public)
*
* @param {string} profileName the user's profile name
*
* @return string
*/
protected function findFacebookId(string $profileName):string {
try {
$result = $this->httpClient->get('https://facebook.com/'.$profileName);
if ($result->getStatusCode() !== 200) {
return $profileName;
}
$htmlResult = $result->getBody();
$entity_id = '/.*"entity_id":"([0-9]+)".*/';
if (preg_match($entity_id, $htmlResult, $matches)) {
return($matches[1]);
}
// keyword not found - page changed?
return $profileName;
} catch (\Exception $e) {
return $profileName;
}
}
}
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