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<?php
declare(strict_types=1);
/**
* SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
namespace OC\Federation;
use OC\AppFramework\Http;
use OCP\App\IAppManager;
use OCP\Federation\Exceptions\ProviderDoesNotExistsException;
use OCP\Federation\ICloudFederationNotification;
use OCP\Federation\ICloudFederationProvider;
use OCP\Federation\ICloudFederationProviderManager;
use OCP\Federation\ICloudFederationShare;
use OCP\Federation\ICloudIdManager;
use OCP\Http\Client\IClientService;
use OCP\Http\Client\IResponse;
use OCP\IConfig;
use OCP\OCM\Exceptions\OCMProviderException;
use OCP\OCM\IOCMDiscoveryService;
use Psr\Log\LoggerInterface;
/**
* Class Manager
*
* Manage Cloud Federation Providers
*
* @package OC\Federation
*/
class CloudFederationProviderManager implements ICloudFederationProviderManager {
/** @var array list of available cloud federation providers */
private array $cloudFederationProvider = [];
public function __construct(
private IConfig $config,
private IAppManager $appManager,
private IClientService $httpClientService,
private ICloudIdManager $cloudIdManager,
private IOCMDiscoveryService $discoveryService,
private LoggerInterface $logger
) {
}
/**
* Registers an callback function which must return an cloud federation provider
*
* @param string $resourceType which resource type does the provider handles
* @param string $displayName user facing name of the federated share provider
* @param callable $callback
*/
public function addCloudFederationProvider($resourceType, $displayName, callable $callback) {
$this->cloudFederationProvider[$resourceType] = [
'resourceType' => $resourceType,
'displayName' => $displayName,
'callback' => $callback,
];
}
/**
* remove cloud federation provider
*
* @param string $providerId
*/
public function removeCloudFederationProvider($providerId) {
unset($this->cloudFederationProvider[$providerId]);
}
/**
* get a list of all cloudFederationProviders
*
* @return array [resourceType => ['resourceType' => $resourceType, 'displayName' => $displayName, 'callback' => callback]]
*/
public function getAllCloudFederationProviders() {
return $this->cloudFederationProvider;
}
/**
* get a specific cloud federation provider
*
* @param string $resourceType
* @return ICloudFederationProvider
* @throws ProviderDoesNotExistsException
*/
public function getCloudFederationProvider($resourceType) {
if (isset($this->cloudFederationProvider[$resourceType])) {
return call_user_func($this->cloudFederationProvider[$resourceType]['callback']);
} else {
throw new ProviderDoesNotExistsException($resourceType);
}
}
/**
* @deprecated 29.0.0 - Use {@see sendCloudShare()} instead and handle errors manually
*/
public function sendShare(ICloudFederationShare $share) {
$cloudID = $this->cloudIdManager->resolveCloudId($share->getShareWith());
try {
$ocmProvider = $this->discoveryService->discover($cloudID->getRemote());
} catch (OCMProviderException $e) {
return false;
}
$client = $this->httpClientService->newClient();
try {
$response = $client->post($ocmProvider->getEndPoint() . '/shares', [
'body' => json_encode($share->getShare()),
'headers' => ['content-type' => 'application/json'],
'verify' => !$this->config->getSystemValueBool('sharing.federation.allowSelfSignedCertificates', false),
'timeout' => 10,
'connect_timeout' => 10,
]);
if ($response->getStatusCode() === Http::STATUS_CREATED) {
$result = json_decode($response->getBody(), true);
return (is_array($result)) ? $result : [];
}
} catch (\Exception $e) {
$this->logger->debug($e->getMessage(), ['exception' => $e]);
// if flat re-sharing is not supported by the remote server
// we re-throw the exception and fall back to the old behaviour.
// (flat re-shares has been introduced in Nextcloud 9.1)
if ($e->getCode() === Http::STATUS_INTERNAL_SERVER_ERROR) {
throw $e;
}
}
return false;
}
/**
* @param ICloudFederationShare $share
* @return IResponse
* @throws OCMProviderException
*/
public function sendCloudShare(ICloudFederationShare $share): IResponse {
$cloudID = $this->cloudIdManager->resolveCloudId($share->getShareWith());
$ocmProvider = $this->discoveryService->discover($cloudID->getRemote());
$client = $this->httpClientService->newClient();
try {
return $client->post($ocmProvider->getEndPoint() . '/shares', [
'body' => json_encode($share->getShare()),
'headers' => ['content-type' => 'application/json'],
'verify' => !$this->config->getSystemValueBool('sharing.federation.allowSelfSignedCertificates', false),
'timeout' => 10,
'connect_timeout' => 10,
]);
} catch (\Throwable $e) {
$this->logger->error('Error while sending share to federation server: ' . $e->getMessage(), ['exception' => $e]);
try {
return $client->getResponseFromThrowable($e);
} catch (\Throwable $e) {
throw new OCMProviderException($e->getMessage(), $e->getCode(), $e);
}
}
}
/**
* @param string $url
* @param ICloudFederationNotification $notification
* @return array|false
* @deprecated 29.0.0 - Use {@see sendCloudNotification()} instead and handle errors manually
*/
public function sendNotification($url, ICloudFederationNotification $notification) {
try {
$ocmProvider = $this->discoveryService->discover($url);
} catch (OCMProviderException $e) {
return false;
}
$client = $this->httpClientService->newClient();
try {
$response = $client->post($ocmProvider->getEndPoint() . '/notifications', [
'body' => json_encode($notification->getMessage()),
'headers' => ['content-type' => 'application/json'],
'verify' => !$this->config->getSystemValueBool('sharing.federation.allowSelfSignedCertificates', false),
'timeout' => 10,
'connect_timeout' => 10,
]);
if ($response->getStatusCode() === Http::STATUS_CREATED) {
$result = json_decode($response->getBody(), true);
return (is_array($result)) ? $result : [];
}
} catch (\Exception $e) {
// log the error and return false
$this->logger->error('error while sending notification for federated share: ' . $e->getMessage(), ['exception' => $e]);
}
return false;
}
/**
* @param string $url
* @param ICloudFederationNotification $notification
* @return IResponse
* @throws OCMProviderException
*/
public function sendCloudNotification(string $url, ICloudFederationNotification $notification): IResponse {
$ocmProvider = $this->discoveryService->discover($url);
$client = $this->httpClientService->newClient();
try {
return $client->post($ocmProvider->getEndPoint() . '/notifications', [
'body' => json_encode($notification->getMessage()),
'headers' => ['content-type' => 'application/json'],
'verify' => !$this->config->getSystemValueBool('sharing.federation.allowSelfSignedCertificates', false),
'timeout' => 10,
'connect_timeout' => 10,
]);
} catch (\Throwable $e) {
$this->logger->error('Error while sending notification to federation server: ' . $e->getMessage(), ['exception' => $e]);
try {
return $client->getResponseFromThrowable($e);
} catch (\Throwable $e) {
throw new OCMProviderException($e->getMessage(), $e->getCode(), $e);
}
}
}
/**
* check if the new cloud federation API is ready to be used
*
* @return bool
*/
public function isReady() {
return $this->appManager->isEnabledForUser('cloud_federation_api');
}
}
|
