mirror of
https://github.com/nextcloud/server.git
synced 2024-08-30 17:57:26 +02:00
138 lines
3.8 KiB
PHP
138 lines
3.8 KiB
PHP
<?php
|
|
|
|
declare(strict_types=1);
|
|
|
|
/**
|
|
* @copyright 2023, Maxence Lange <maxence@artificial-owl.com>
|
|
*
|
|
* @author Maxence Lange <maxence@artificial-owl.com>
|
|
*
|
|
* @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 OC\OCM;
|
|
|
|
use JsonException;
|
|
use OCP\AppFramework\Http;
|
|
use OCP\Http\Client\IClientService;
|
|
use OCP\ICache;
|
|
use OCP\ICacheFactory;
|
|
use OCP\IConfig;
|
|
use OCP\OCM\Exceptions\OCMProviderException;
|
|
use OCP\OCM\IOCMDiscoveryService;
|
|
use OCP\OCM\IOCMProvider;
|
|
use Psr\Log\LoggerInterface;
|
|
|
|
/**
|
|
* @since 28.0.0
|
|
*/
|
|
class OCMDiscoveryService implements IOCMDiscoveryService {
|
|
private ICache $cache;
|
|
private array $supportedAPIVersion =
|
|
[
|
|
'1.0-proposal1',
|
|
'1.0',
|
|
'1.1'
|
|
];
|
|
|
|
public function __construct(
|
|
ICacheFactory $cacheFactory,
|
|
private IClientService $clientService,
|
|
private IConfig $config,
|
|
private IOCMProvider $provider,
|
|
private LoggerInterface $logger,
|
|
) {
|
|
$this->cache = $cacheFactory->createDistributed('ocm-discovery');
|
|
}
|
|
|
|
|
|
/**
|
|
* @param string $remote
|
|
* @param bool $skipCache
|
|
*
|
|
* @return IOCMProvider
|
|
* @throws OCMProviderException
|
|
*/
|
|
public function discover(string $remote, bool $skipCache = false): IOCMProvider {
|
|
$remote = rtrim($remote, '/');
|
|
|
|
if (!$skipCache) {
|
|
try {
|
|
$this->provider->import(json_decode($this->cache->get($remote) ?? '', true, 8, JSON_THROW_ON_ERROR) ?? []);
|
|
if ($this->supportedAPIVersion($this->provider->getApiVersion())) {
|
|
return $this->provider; // if cache looks valid, we use it
|
|
}
|
|
} catch (JsonException|OCMProviderException $e) {
|
|
// we ignore cache on issues
|
|
}
|
|
}
|
|
|
|
$client = $this->clientService->newClient();
|
|
try {
|
|
$response = $client->get(
|
|
$remote . '/ocm-provider/',
|
|
[
|
|
'timeout' => 10,
|
|
'verify' => !$this->config->getSystemValueBool('sharing.federation.allowSelfSignedCertificates'),
|
|
'connect_timeout' => 10,
|
|
]
|
|
);
|
|
|
|
if ($response->getStatusCode() === Http::STATUS_OK) {
|
|
$body = $response->getBody();
|
|
// update provider with data returned by the request
|
|
$this->provider->import(json_decode($body, true, 8, JSON_THROW_ON_ERROR) ?? []);
|
|
$this->cache->set($remote, $body, 60 * 60 * 24);
|
|
}
|
|
} catch (JsonException|OCMProviderException $e) {
|
|
throw new OCMProviderException('data returned by remote seems invalid - ' . ($body ?? ''));
|
|
} catch (\Exception $e) {
|
|
$this->logger->warning('error while discovering ocm provider', [
|
|
'exception' => $e,
|
|
'remote' => $remote
|
|
]);
|
|
throw new OCMProviderException('error while requesting remote ocm provider');
|
|
}
|
|
|
|
if (!$this->supportedAPIVersion($this->provider->getApiVersion())) {
|
|
throw new OCMProviderException('API version not supported');
|
|
}
|
|
|
|
return $this->provider;
|
|
}
|
|
|
|
/**
|
|
* Check the version from remote is supported.
|
|
* The minor version of the API will be ignored:
|
|
* 1.0.1 is identified as 1.0
|
|
*
|
|
* @param string $version
|
|
*
|
|
* @return bool
|
|
*/
|
|
private function supportedAPIVersion(string $version): bool {
|
|
$dot1 = strpos($version, '.');
|
|
$dot2 = strpos($version, '.', $dot1 + 1);
|
|
|
|
if ($dot2 > 0) {
|
|
$version = substr($version, 0, $dot2);
|
|
}
|
|
|
|
return (in_array($version, $this->supportedAPIVersion));
|
|
}
|
|
}
|