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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 GuzzleHttp\Exception\RequestException;
use GuzzleHttp\RequestOptions;
use OC\AppFramework\Http\Request;
use OCA\Contacts\AppInfo\Application;
use OCP\Http\Client\IClientService;
use Psr\Log\LoggerInterface;
class InstagramProvider implements ISocialProvider {
/** @var IClientService */
private $httpClient;
/** @var LoggerInterface */
private $logger;
/** @var string */
public $name = "instagram";
public function __construct(IClientService $httpClient,
LoggerInterface $logger) {
$this->httpClient = $httpClient->NewClient();
$this->logger = $logger;
}
/**
* Returns if this provider supports this contact
*
* @param {array} contact info
*
* @return bool
*/
public function supportsContact(array $contact):bool {
$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://www.instagram.com/{socialId}/?__a=1';
$connector = str_replace("{socialId}", $profileId, $recipe);
$connector = $this->getFromJson($connector, 'graphql->user->profile_pic_url_hd');
$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 = preg_replace('/^' . preg_quote('x-apple:', '/') . '/', '', $candidate);
return basename($candidate);
}
/**
* Returns all possible profile urls for contact
*
* @param {array} contact information
*
* @return array of string profile urls
*/
protected function getProfiles($contact):array {
$socialprofiles = $contact['X-SOCIALPROFILE'];
$profiles = [];
if (isset($socialprofiles)) {
foreach ($socialprofiles as $profile) {
if (strtolower($profile['type']) == $this->name) {
$profiles[] = $profile['value'];
}
}
}
return $profiles;
}
/**
* Returns all possible profile ids for contact
*
* @param {array} contact information
*
* @return array of string profile ids
*/
protected function getProfileIds($contact):array {
$socialprofiles = $this->getProfiles($contact);
$profileIds = [];
foreach ($socialprofiles as $profile) {
$profileIds[] = $this->cleanupId($profile);
}
return $profileIds;
}
/**
* extracts desired value from a json
*
* @param {string} url the target from where to fetch the json
* @param {String} the desired key to filter for (nesting possible with '->')
*
* @returns {String} the extracted value or null if not present
*/
protected function getFromJson(string $url, string $desired) : ?string {
try {
$result = $this->httpClient->get($url, [
RequestOptions::HEADERS => [
// Make the request as google bot so insta displays the full static html page
'User-Agent' => 'Googlebot/2.1'
]
]);
$jsonResult = json_decode($result->getBody(),true);
$location = explode('->' , $desired);
foreach ($location as $loc) {
if (!isset($jsonResult[$loc])) {
return null;
}
$jsonResult = $jsonResult[$loc];
}
return $jsonResult;
} catch (RequestException $e) {
$this->logger->debug('Error fetching instagram urls', [
'app' => Application::APP_ID,
'exception' => $e
]);
return null;
}
}
}
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