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<?php
/**
* @copyright Copyright (c) 2016 Lukas Reschke <lukas@statuscode.ch>
*
* @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\Richdocuments\WOPI;
use OCP\AppFramework\Utility\ITimeFactory;
use OCP\Files\IAppData;
use OCP\Files\NotFoundException;
use OCP\Files\SimpleFS\ISimpleFolder;
use OCP\Http\Client\IClientService;
use OCP\IConfig;
use OCP\IL10N;
use OCP\Notification\IApp;
class DiscoveryManager {
/** @var IClientService */
private $clientService;
/** @var ISimpleFolder */
private $appData;
/** @var IConfig */
private $config;
/** @var IL10N */
private $l10n;
/** @var ITimeFactory */
private $timeFactory;
/**
* @param IClientService $clientService
* @param IAppData $appData
* @param IConfig $config
* @param IL10N $l10n
* @param ITimeFactory $timeFactory
*/
public function __construct(IClientService $clientService,
IAppData $appData,
IConfig $config,
IL10N $l10n,
ITimeFactory $timeFactory) {
$this->clientService = $clientService;
try {
$this->appData = $appData->getFolder('richdocuments');
} catch (NotFoundException $e) {
$this->appData = $appData->newFolder('richdocuments');
}
$this->config = $config;
$this->l10n = $l10n;
$this->timeFactory = $timeFactory;
}
public function get() {
// First check if there is a local valid discovery file
try {
$file = $this->appData->getFile('discovery.xml');
$decodedFile = json_decode($file->getContent(), true);
if($decodedFile['timestamp'] + 3600 > $this->timeFactory->getTime()) {
return $decodedFile['data'];
}
} catch (NotFoundException $e) {
$file = $this->appData->newFile('discovery.xml');
}
$remoteHost = $this->config->getAppValue('richdocuments', 'wopi_url');
$wopiDiscovery = $remoteHost . '/hosting/discovery';
$client = $this->clientService->newClient();
try {
$response = $client->get($wopiDiscovery);
} catch (\Exception $e) {
$error_message = $e->getMessage();
if (preg_match('/^cURL error ([0-9]*):/', $error_message, $matches)) {
$admin_check = $this->l10n->t('Please ask your administrator to check the Collabora Online server setting. The exact error message was: ') . $error_message;
$curl_error = $matches[1];
switch ($curl_error) {
case '1':
throw new ResponseException($this->l10n->t('Collabora Online: The protocol specified in "%s" is not allowed.', array($wopiRemote)), $admin_check);
case '3':
throw new ResponseException($this->l10n->t('Collabora Online: Malformed URL "%s".', array($wopiRemote)), $admin_check);
case '6':
throw new ResponseException($this->l10n->t('Collabora Online: Cannot resolve the host "%s".', array($wopiRemote)), $admin_check);
case '7':
throw new ResponseException($this->l10n->t('Collabora Online: Cannot connect to the host "%s".', array($wopiRemote)), $admin_check);
case '60':
throw new ResponseException($this->l10n->t('Collabora Online: SSL certificate is not installed.'), $this->l10n->t('Please ask your administrator to add ca-chain.cert.pem to the ca-bundle.crt, for example "cat /etc/loolwsd/ca-chain.cert.pem >> <server-installation>/resources/config/ca-bundle.crt" . The exact error message was: ') . $error_message);
}
}
throw new ResponseException($this->l10n->t('Collabora Online unknown error: ') . $error_message, $contact_admin);
}
$responseBody = $response->getBody();
$file->putContent(
json_encode([
'data' => $responseBody,
'timestamp' => $this->timeFactory->getTime(),
])
);
return $responseBody;
}
}
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