Notifications::sendRemoteShare() - Code Metrics - Inspection of "Merge pull request #25498 from Worteks/feat-federa..." - nextcloud/server - Measure and Improve Code Quality continuously with Scrutinizer

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Push — master ( 268acd...1eb084 )

by Morris

created 2021-03-22 20:22 UTC

Notifications::sendRemoteShare() B

↳ Parent: Notifications

Complexity

Conditions	8
Paths	5

Size

Total Lines	43
Code Lines	31

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	8
eloc	31
c	0
b	0
f	0
nc	5
nop	9
dl	0
loc	43
rs	8.1795

How to fix Many Parameters

<?php
/**
 * @copyright Copyright (c) 2016, ownCloud, Inc.
 *
 * @author Bjoern Schiessle <[email protected]>
 * @author Björn Schießle <[email protected]>
 * @author Christoph Wurst <[email protected]>
 * @author Julius Härtl <[email protected]>
 * @author Lukas Reschke <[email protected]>
 * @author Morris Jobke <[email protected]>
 *
 * @license AGPL-3.0
 *
 * This code is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License, version 3,
 * as published by the Free Software Foundation.
 *
 * 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, version 3,
 * along with this program. If not, see <http://www.gnu.org/licenses/>
 *
 */

namespace OCA\FederatedFileSharing;

use OCA\FederatedFileSharing\Events\FederatedShareAddedEvent;
use OCP\AppFramework\Http;
use OCP\BackgroundJob\IJobList;
use OCP\EventDispatcher\IEventDispatcher;
use OCP\Federation\ICloudFederationFactory;
use OCP\Federation\ICloudFederationProviderManager;
use OCP\Http\Client\IClientService;
use OCP\OCS\IDiscoveryService;
use OCP\ILogger;

class Notifications {
	public const RESPONSE_FORMAT = 'json'; // default response format for ocs calls

	/** @var AddressHandler */
	private $addressHandler;

	/** @var IClientService */
	private $httpClientService;

	/** @var IDiscoveryService */
	private $discoveryService;

	/** @var IJobList  */
	private $jobList;

	/** @var ICloudFederationProviderManager */
	private $federationProviderManager;

	/** @var ICloudFederationFactory */
	private $cloudFederationFactory;

	/** @var IEventDispatcher */
	private $eventDispatcher;

	/** @var ILogger */
	private $logger;

	public function __construct(
		AddressHandler $addressHandler,
		IClientService $httpClientService,
		IDiscoveryService $discoveryService,
		ILogger $logger,
		IJobList $jobList,
		ICloudFederationProviderManager $federationProviderManager,
		ICloudFederationFactory $cloudFederationFactory,
		IEventDispatcher $eventDispatcher
	) {
		$this->addressHandler = $addressHandler;
		$this->httpClientService = $httpClientService;
		$this->discoveryService = $discoveryService;
		$this->jobList = $jobList;
		$this->logger = $logger;
		$this->federationProviderManager = $federationProviderManager;
		$this->cloudFederationFactory = $cloudFederationFactory;
		$this->eventDispatcher = $eventDispatcher;
	}

	/**
	 * send server-to-server share to remote server
	 *
	 * @param string $token
	 * @param string $shareWith
	 * @param string $name
	 * @param string $remoteId
	 * @param string $owner
	 * @param string $ownerFederatedId
	 * @param string $sharedBy
	 * @param string $sharedByFederatedId
	 * @param int $shareType (can be a remote user or group share)
	 * @return bool
	 * @throws \OC\HintException
	 * @throws \OC\ServerNotAvailableException
	 */
	public function sendRemoteShare($token, $shareWith, $name, $remoteId, $owner, $ownerFederatedId, $sharedBy, $sharedByFederatedId, $shareType) {
		[$user, $remote] = $this->addressHandler->splitUserRemote($shareWith);

		if ($user && $remote) {
			$local = $this->addressHandler->generateRemoteURL();

			$fields = [
				'shareWith' => $user,
				'token' => $token,
				'name' => $name,
				'remoteId' => $remoteId,
				'owner' => $owner,
				'ownerFederatedId' => $ownerFederatedId,
				'sharedBy' => $sharedBy,
				'sharedByFederatedId' => $sharedByFederatedId,
				'remote' => $local,
				'shareType' => $shareType
			];

			$result = $this->tryHttpPostToShareEndpoint($remote, '', $fields);
			$status = json_decode($result['result'], true);

			$ocsStatus = isset($status['ocs']);
			$ocsSuccess = $ocsStatus && ($status['ocs']['meta']['statuscode'] === 100 || $status['ocs']['meta']['statuscode'] === 200);

			if ($result['success'] && (!$ocsStatus || $ocsSuccess)) {
				$event = new FederatedShareAddedEvent($remote);
				$this->eventDispatcher->dispatchTyped($event);
				return true;
			} else {
				$this->logger->info(
					"failed sharing $name with $shareWith",
					['app' => 'federatedfilesharing']
				);
			}
		} else {
			$this->logger->info(
				"could not share $name, invalid contact $shareWith",
				['app' => 'federatedfilesharing']
			);
		}

		return false;
	}

	/**
	 * ask owner to re-share the file with the given user
	 *
	 * @param string $token
	 * @param string $id remote Id
	 * @param string $shareId internal share Id
	 * @param string $remote remote address of the owner
	 * @param string $shareWith
	 * @param int $permission
	 * @param string $filename
	 * @return array|false
	 * @throws \OC\HintException
	 * @throws \OC\ServerNotAvailableException
	 */
	public function requestReShare($token, $id, $shareId, $remote, $shareWith, $permission, $filename) {
		$fields = [
			'shareWith' => $shareWith,
			'token' => $token,
			'permission' => $permission,
			'remoteId' => $shareId,
		];

		$ocmFields = $fields;
		$ocmFields['remoteId'] = (string)$id;
		$ocmFields['localId'] = $shareId;
		$ocmFields['name'] = $filename;

		$ocmResult = $this->tryOCMEndPoint($remote, $ocmFields, 'reshare');
		if (is_array($ocmResult) && isset($ocmResult['token']) && isset($ocmResult['providerId'])) {

			return [$ocmResult['token'], $ocmResult['providerId']];
		}

		$result = $this->tryLegacyEndPoint(rtrim($remote, '/'), '/' . $id . '/reshare', $fields);
		$status = json_decode($result['result'], true);

		$httpRequestSuccessful = $result['success'];
		$ocsCallSuccessful = $status['ocs']['meta']['statuscode'] === 100 || $status['ocs']['meta']['statuscode'] === 200;
		$validToken = isset($status['ocs']['data']['token']) && is_string($status['ocs']['data']['token']);
		$validRemoteId = isset($status['ocs']['data']['remoteId']);

		if ($httpRequestSuccessful && $ocsCallSuccessful && $validToken && $validRemoteId) {
			return [
				$status['ocs']['data']['token'],
				$status['ocs']['data']['remoteId']
			];
		} elseif (!$validToken) {
			$this->logger->info(
				"invalid or missing token requesting re-share for $filename to $remote",
				['app' => 'federatedfilesharing']
			);
		} elseif (!$validRemoteId) {
			$this->logger->info(
				"missing remote id requesting re-share for $filename to $remote",
				['app' => 'federatedfilesharing']
			);
		} else {
			$this->logger->info(
				"failed requesting re-share for $filename to $remote",
				['app' => 'federatedfilesharing']
			);
		}

		return false;
	}

	/**
	 * send server-to-server unshare to remote server
	 *
	 * @param string $remote url
	 * @param string $id share id
	 * @param string $token
	 * @return bool
	 */
	public function sendRemoteUnShare($remote, $id, $token) {
		$this->sendUpdateToRemote($remote, $id, $token, 'unshare');
	}

	/**
	 * send server-to-server unshare to remote server
	 *
	 * @param string $remote url
	 * @param string $id share id
	 * @param string $token
	 * @return bool
	 */
	public function sendRevokeShare($remote, $id, $token) {
		$this->sendUpdateToRemote($remote, $id, $token, 'reshare_undo');
	}

	/**
	 * send notification to remote server if the permissions was changed
	 *
	 * @param string $remote
	 * @param string $remoteId
	 * @param string $token
	 * @param int $permissions
	 * @return bool
	 */
	public function sendPermissionChange($remote, $remoteId, $token, $permissions) {
		$this->sendUpdateToRemote($remote, $remoteId, $token, 'permissions', ['permissions' => $permissions]);
	}

	/**
	 * forward accept reShare to remote server
	 *
	 * @param string $remote
	 * @param string $remoteId
	 * @param string $token
	 */
	public function sendAcceptShare($remote, $remoteId, $token) {
		$this->sendUpdateToRemote($remote, $remoteId, $token, 'accept');
	}

	/**
	 * forward decline reShare to remote server
	 *
	 * @param string $remote
	 * @param string $remoteId
	 * @param string $token
	 */
	public function sendDeclineShare($remote, $remoteId, $token) {
		$this->sendUpdateToRemote($remote, $remoteId, $token, 'decline');
	}

	/**
	 * inform remote server whether server-to-server share was accepted/declined
	 *
	 * @param string $remote
	 * @param string $token
	 * @param string $remoteId Share id on the remote host
	 * @param string $action possible actions: accept, decline, unshare, revoke, permissions
	 * @param array $data
	 * @param int $try
	 * @return boolean
	 */
	public function sendUpdateToRemote($remote, $remoteId, $token, $action, $data = [], $try = 0) {
		$fields = [
			'token' => $token,
			'remoteId' => $remoteId
		];
		foreach ($data as $key => $value) {
			$fields[$key] = $value;
		}

		$result = $this->tryHttpPostToShareEndpoint(rtrim($remote, '/'), '/' . $remoteId . '/' . $action, $fields, $action);
		$status = json_decode($result['result'], true);

		if ($result['success'] &&
			($status['ocs']['meta']['statuscode'] === 100 ||
				$status['ocs']['meta']['statuscode'] === 200
			)
		) {
			return true;
		} elseif ($try === 0) {
			// only add new job on first try
			$this->jobList->add('OCA\FederatedFileSharing\BackgroundJob\RetryJob',
				[
					'remote' => $remote,
					'remoteId' => $remoteId,
					'token' => $token,
					'action' => $action,
					'data' => json_encode($data),
					'try' => $try,
					'lastRun' => $this->getTimestamp()
				]
			);
		}

		return false;
	}


	/**
	 * return current timestamp
	 *
	 * @return int
	 */
	protected function getTimestamp() {
		return time();
	}

	/**
	 * try http post with the given protocol, if no protocol is given we pick
	 * the secure one (https)
	 *
	 * @param string $remoteDomain
	 * @param string $urlSuffix
	 * @param array $fields post parameters
	 * @param string $action define the action (possible values: share, reshare, accept, decline, unshare, revoke, permissions)
	 * @return array
	 * @throws \Exception
	 */
	protected function tryHttpPostToShareEndpoint($remoteDomain, $urlSuffix, array $fields, $action = "share") {
		if ($this->addressHandler->urlContainProtocol($remoteDomain) === false) {
			$remoteDomain = 'https://' . $remoteDomain;
		}

		$result = [
			'success' => false,
			'result' => '',
		];

		// if possible we use the new OCM API
		$ocmResult = $this->tryOCMEndPoint($remoteDomain, $fields, $action);
		if (is_array($ocmResult)) {

			$result['success'] = true;
			$result['result'] = json_encode([
				'ocs' => ['meta' => ['statuscode' => 200]]]);
			return $result;
		}

		return $this->tryLegacyEndPoint($remoteDomain, $urlSuffix, $fields);
	}

	/**
	 * try old federated sharing API if the OCM api doesn't work
	 *
	 * @param $remoteDomain
	 * @param $urlSuffix
	 * @param array $fields
	 * @return mixed
	 * @throws \Exception
	 */
	protected function tryLegacyEndPoint($remoteDomain, $urlSuffix, array $fields) {
		$result = [
			'success' => false,
			'result' => '',
		];

		// Fall back to old API
		$client = $this->httpClientService->newClient();
		$federationEndpoints = $this->discoveryService->discover($remoteDomain, 'FEDERATED_SHARING');
		$endpoint = isset($federationEndpoints['share']) ? $federationEndpoints['share'] : '/ocs/v2.php/cloud/shares';
		try {
			$response = $client->post($remoteDomain . $endpoint . $urlSuffix . '?format=' . self::RESPONSE_FORMAT, [
				'body' => $fields,
				'timeout' => 10,
				'connect_timeout' => 10,
			]);
			$result['result'] = $response->getBody();
			$result['success'] = true;
		} catch (\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 $result;
	}

	/**
	 * send action regarding federated sharing to the remote server using the OCM API
	 *
	 * @param $remoteDomain
	 * @param $fields
	 * @param $action
	 *
	 * @return bool
	 */
	protected function tryOCMEndPoint($remoteDomain, $fields, $action) {
		switch ($action) {
			case 'share':
				$share = $this->cloudFederationFactory->getCloudFederationShare(
					$fields['shareWith'] . '@' . $remoteDomain,
					$fields['name'],
					'',
					$fields['remoteId'],
					$fields['ownerFederatedId'],
					$fields['owner'],
					$fields['sharedByFederatedId'],
					$fields['sharedBy'],
					$fields['token'],
					$fields['shareType'],
					'file'
				);
				return $this->federationProviderManager->sendShare($share);
			case 'reshare':
				// ask owner to reshare a file
				$notification = $this->cloudFederationFactory->getCloudFederationNotification();
				$notification->setMessage('REQUEST_RESHARE',
					'file',
					$fields['remoteId'],
					[
						'sharedSecret' => $fields['token'],
						'shareWith' => $fields['shareWith'],
						'senderId' => $fields['localId'],
						'shareType' => $fields['shareType'],
						'message' => 'Ask owner to reshare the file'
					]
				);
				return $this->federationProviderManager->sendNotification($remoteDomain, $notification);
			case 'unshare':
				//owner unshares the file from the recipient again
				$notification = $this->cloudFederationFactory->getCloudFederationNotification();
				$notification->setMessage('SHARE_UNSHARED',
					'file',
					$fields['remoteId'],
					[
						'sharedSecret' => $fields['token'],
						'messgage' => 'file is no longer shared with you'
					]
				);
				return $this->federationProviderManager->sendNotification($remoteDomain, $notification);
			case 'reshare_undo':
				// if a reshare was unshared we send the information to the initiator/owner
				$notification = $this->cloudFederationFactory->getCloudFederationNotification();
				$notification->setMessage('RESHARE_UNDO',
					'file',
					$fields['remoteId'],
					[
						'sharedSecret' => $fields['token'],
						'message' => 'reshare was revoked'
					]
				);
				return $this->federationProviderManager->sendNotification($remoteDomain, $notification);
		}

		return false;
	}
}


1			<?php
2			/**
3			* @copyright Copyright (c) 2016, ownCloud, Inc.
4			*
5			* @author Bjoern Schiessle <[email protected]>
6			* @author Björn Schießle <[email protected]>
7			* @author Christoph Wurst <[email protected]>
8			* @author Julius Härtl <[email protected]>
9			* @author Lukas Reschke <[email protected]>
10			* @author Morris Jobke <[email protected]>
11			*
12			* @license AGPL-3.0
13			*
14			* This code is free software: you can redistribute it and/or modify
15			* it under the terms of the GNU Affero General Public License, version 3,
16			* as published by the Free Software Foundation.
17			*
18			* This program is distributed in the hope that it will be useful,
19			* but WITHOUT ANY WARRANTY; without even the implied warranty of
20			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21			* GNU Affero General Public License for more details.
22			*
23			* You should have received a copy of the GNU Affero General Public License, version 3,
24			* along with this program. If not, see <http://www.gnu.org/licenses/>
25			*
26			*/
27
28			namespace OCA\FederatedFileSharing;
29
30			use OCA\FederatedFileSharing\Events\FederatedShareAddedEvent;
31			use OCP\AppFramework\Http;
32			use OCP\BackgroundJob\IJobList;
33			use OCP\EventDispatcher\IEventDispatcher;
34			use OCP\Federation\ICloudFederationFactory;
35			use OCP\Federation\ICloudFederationProviderManager;
36			use OCP\Http\Client\IClientService;
37			use OCP\OCS\IDiscoveryService;
38			use OCP\ILogger;
39
40			class Notifications {
41			public const RESPONSE_FORMAT = 'json'; // default response format for ocs calls
42
43			/** @var AddressHandler */
44			private $addressHandler;
45
46			/** @var IClientService */
47			private $httpClientService;
48
49			/** @var IDiscoveryService */
50			private $discoveryService;
51
52			/** @var IJobList */
53			private $jobList;
54
55			/** @var ICloudFederationProviderManager */
56			private $federationProviderManager;
57
58			/** @var ICloudFederationFactory */
59			private $cloudFederationFactory;
60
61			/** @var IEventDispatcher */
62			private $eventDispatcher;
63
64			/** @var ILogger */
65			private $logger;
66
67			public function __construct(
68			AddressHandler $addressHandler,
69			IClientService $httpClientService,
70			IDiscoveryService $discoveryService,
71			ILogger $logger,
72			IJobList $jobList,
73			ICloudFederationProviderManager $federationProviderManager,
74			ICloudFederationFactory $cloudFederationFactory,
75			IEventDispatcher $eventDispatcher
76			) {
77			$this->addressHandler = $addressHandler;
78			$this->httpClientService = $httpClientService;
79			$this->discoveryService = $discoveryService;
80			$this->jobList = $jobList;
81			$this->logger = $logger;
82			$this->federationProviderManager = $federationProviderManager;
83			$this->cloudFederationFactory = $cloudFederationFactory;
84			$this->eventDispatcher = $eventDispatcher;
85			}
86
87			/**
88			* send server-to-server share to remote server
89			*
90			* @param string $token
91			* @param string $shareWith
92			* @param string $name
93			* @param string $remoteId
94			* @param string $owner
95			* @param string $ownerFederatedId
96			* @param string $sharedBy
97			* @param string $sharedByFederatedId
98			* @param int $shareType (can be a remote user or group share)
99			* @return bool
100			* @throws \OC\HintException
101			* @throws \OC\ServerNotAvailableException
102			*/
103			public function sendRemoteShare($token, $shareWith, $name, $remoteId, $owner, $ownerFederatedId, $sharedBy, $sharedByFederatedId, $shareType) {
104			[$user, $remote] = $this->addressHandler->splitUserRemote($shareWith);
105
106			if ($user && $remote) {
107			$local = $this->addressHandler->generateRemoteURL();
108
109			$fields = [
110			'shareWith' => $user,
111			'token' => $token,
112			'name' => $name,
113			'remoteId' => $remoteId,
114			'owner' => $owner,
115			'ownerFederatedId' => $ownerFederatedId,
116			'sharedBy' => $sharedBy,
117			'sharedByFederatedId' => $sharedByFederatedId,
118			'remote' => $local,
119			'shareType' => $shareType
120			];
121
122			$result = $this->tryHttpPostToShareEndpoint($remote, '', $fields);
123			$status = json_decode($result['result'], true);
124
125			$ocsStatus = isset($status['ocs']);
126			$ocsSuccess = $ocsStatus && ($status['ocs']['meta']['statuscode'] === 100 \|\| $status['ocs']['meta']['statuscode'] === 200);
127
128			if ($result['success'] && (!$ocsStatus \|\| $ocsSuccess)) {
129			$event = new FederatedShareAddedEvent($remote);
130			$this->eventDispatcher->dispatchTyped($event);
131			return true;
132			} else {
133			$this->logger->info(
134			"failed sharing $name with $shareWith",
135			['app' => 'federatedfilesharing']
136			);
137			}
138			} else {
139			$this->logger->info(
140			"could not share $name, invalid contact $shareWith",
141			['app' => 'federatedfilesharing']
142			);
143			}
144
145			return false;
146			}
147
148			/**
149			* ask owner to re-share the file with the given user
150			*
151			* @param string $token
152			* @param string $id remote Id
153			* @param string $shareId internal share Id
154			* @param string $remote remote address of the owner
155			* @param string $shareWith
156			* @param int $permission
157			* @param string $filename
158			* @return array\|false
159			* @throws \OC\HintException
160			* @throws \OC\ServerNotAvailableException
161			*/
162			public function requestReShare($token, $id, $shareId, $remote, $shareWith, $permission, $filename) {
163			$fields = [
164			'shareWith' => $shareWith,
165			'token' => $token,
166			'permission' => $permission,
167			'remoteId' => $shareId,
168			];
169
170			$ocmFields = $fields;
171			$ocmFields['remoteId'] = (string)$id;
172			$ocmFields['localId'] = $shareId;
173			$ocmFields['name'] = $filename;
174
175			$ocmResult = $this->tryOCMEndPoint($remote, $ocmFields, 'reshare');
176			if (is_array($ocmResult) && isset($ocmResult['token']) && isset($ocmResult['providerId'])) {
			0 ignored issues – show introduced 2018-10-24 12:40 UTC by Report Bug Copy Issue Report The condition `is_array($ocmResult)` is always `false`. Loading history...
177			return [$ocmResult['token'], $ocmResult['providerId']];
178			}
179
180			$result = $this->tryLegacyEndPoint(rtrim($remote, '/'), '/' . $id . '/reshare', $fields);
181			$status = json_decode($result['result'], true);
182
183			$httpRequestSuccessful = $result['success'];
184			$ocsCallSuccessful = $status['ocs']['meta']['statuscode'] === 100 \|\| $status['ocs']['meta']['statuscode'] === 200;
185			$validToken = isset($status['ocs']['data']['token']) && is_string($status['ocs']['data']['token']);
186			$validRemoteId = isset($status['ocs']['data']['remoteId']);
187
188			if ($httpRequestSuccessful && $ocsCallSuccessful && $validToken && $validRemoteId) {
189			return [
190			$status['ocs']['data']['token'],
191			$status['ocs']['data']['remoteId']
192			];
193			} elseif (!$validToken) {
194			$this->logger->info(
195			"invalid or missing token requesting re-share for $filename to $remote",
196			['app' => 'federatedfilesharing']
197			);
198			} elseif (!$validRemoteId) {
199			$this->logger->info(
200			"missing remote id requesting re-share for $filename to $remote",
201			['app' => 'federatedfilesharing']
202			);
203			} else {
204			$this->logger->info(
205			"failed requesting re-share for $filename to $remote",
206			['app' => 'federatedfilesharing']
207			);
208			}
209
210			return false;
211			}
212
213			/**
214			* send server-to-server unshare to remote server
215			*
216			* @param string $remote url
217			* @param string $id share id
218			* @param string $token
219			* @return bool
220			*/
221			public function sendRemoteUnShare($remote, $id, $token) {
222			$this->sendUpdateToRemote($remote, $id, $token, 'unshare');
223			}
224
225			/**
226			* send server-to-server unshare to remote server
227			*
228			* @param string $remote url
229			* @param string $id share id
230			* @param string $token
231			* @return bool
232			*/
233			public function sendRevokeShare($remote, $id, $token) {
234			$this->sendUpdateToRemote($remote, $id, $token, 'reshare_undo');
235			}
236
237			/**
238			* send notification to remote server if the permissions was changed
239			*
240			* @param string $remote
241			* @param string $remoteId
242			* @param string $token
243			* @param int $permissions
244			* @return bool
245			*/
246			public function sendPermissionChange($remote, $remoteId, $token, $permissions) {
247			$this->sendUpdateToRemote($remote, $remoteId, $token, 'permissions', ['permissions' => $permissions]);
248			}
249
250			/**
251			* forward accept reShare to remote server
252			*
253			* @param string $remote
254			* @param string $remoteId
255			* @param string $token
256			*/
257			public function sendAcceptShare($remote, $remoteId, $token) {
258			$this->sendUpdateToRemote($remote, $remoteId, $token, 'accept');
259			}
260
261			/**
262			* forward decline reShare to remote server
263			*
264			* @param string $remote
265			* @param string $remoteId
266			* @param string $token
267			*/
268			public function sendDeclineShare($remote, $remoteId, $token) {
269			$this->sendUpdateToRemote($remote, $remoteId, $token, 'decline');
270			}
271
272			/**
273			* inform remote server whether server-to-server share was accepted/declined
274			*
275			* @param string $remote
276			* @param string $token
277			* @param string $remoteId Share id on the remote host
278			* @param string $action possible actions: accept, decline, unshare, revoke, permissions
279			* @param array $data
280			* @param int $try
281			* @return boolean
282			*/
283			public function sendUpdateToRemote($remote, $remoteId, $token, $action, $data = [], $try = 0) {
284			$fields = [
285			'token' => $token,
286			'remoteId' => $remoteId
287			];
288			foreach ($data as $key => $value) {
289			$fields[$key] = $value;
290			}
291
292			$result = $this->tryHttpPostToShareEndpoint(rtrim($remote, '/'), '/' . $remoteId . '/' . $action, $fields, $action);
293			$status = json_decode($result['result'], true);
294
295			if ($result['success'] &&
296			($status['ocs']['meta']['statuscode'] === 100 \|\|
297			$status['ocs']['meta']['statuscode'] === 200
298			)
299			) {
300			return true;
301			} elseif ($try === 0) {
302			// only add new job on first try
303			$this->jobList->add('OCA\FederatedFileSharing\BackgroundJob\RetryJob',
304			[
305			'remote' => $remote,
306			'remoteId' => $remoteId,
307			'token' => $token,
308			'action' => $action,
309			'data' => json_encode($data),
310			'try' => $try,
311			'lastRun' => $this->getTimestamp()
312			]
313			);
314			}
315
316			return false;
317			}
318
319
320			/**
321			* return current timestamp
322			*
323			* @return int
324			*/
325			protected function getTimestamp() {
326			return time();
327			}
328
329			/**
330			* try http post with the given protocol, if no protocol is given we pick
331			* the secure one (https)
332			*
333			* @param string $remoteDomain
334			* @param string $urlSuffix
335			* @param array $fields post parameters
336			* @param string $action define the action (possible values: share, reshare, accept, decline, unshare, revoke, permissions)
337			* @return array
338			* @throws \Exception
339			*/
340			protected function tryHttpPostToShareEndpoint($remoteDomain, $urlSuffix, array $fields, $action = "share") {
341			if ($this->addressHandler->urlContainProtocol($remoteDomain) === false) {
342			$remoteDomain = 'https://' . $remoteDomain;
343			}
344
345			$result = [
346			'success' => false,
347			'result' => '',
348			];
349
350			// if possible we use the new OCM API
351			$ocmResult = $this->tryOCMEndPoint($remoteDomain, $fields, $action);
352			if (is_array($ocmResult)) {
			0 ignored issues – show introduced 2018-10-24 12:40 UTC by Report Bug Copy Issue Report The condition `is_array($ocmResult)` is always `false`. Loading history...
353			$result['success'] = true;
354			$result['result'] = json_encode([
355			'ocs' => ['meta' => ['statuscode' => 200]]]);
356			return $result;
357			}
358
359			return $this->tryLegacyEndPoint($remoteDomain, $urlSuffix, $fields);
360			}
361
362			/**
363			* try old federated sharing API if the OCM api doesn't work
364			*
365			* @param $remoteDomain
366			* @param $urlSuffix
367			* @param array $fields
368			* @return mixed
369			* @throws \Exception
370			*/
371			protected function tryLegacyEndPoint($remoteDomain, $urlSuffix, array $fields) {
372			$result = [
373			'success' => false,
374			'result' => '',
375			];
376
377			// Fall back to old API
378			$client = $this->httpClientService->newClient();
379			$federationEndpoints = $this->discoveryService->discover($remoteDomain, 'FEDERATED_SHARING');
380			$endpoint = isset($federationEndpoints['share']) ? $federationEndpoints['share'] : '/ocs/v2.php/cloud/shares';
381			try {
382			$response = $client->post($remoteDomain . $endpoint . $urlSuffix . '?format=' . self::RESPONSE_FORMAT, [
383			'body' => $fields,
384			'timeout' => 10,
385			'connect_timeout' => 10,
386			]);
387			$result['result'] = $response->getBody();
388			$result['success'] = true;
389			} catch (\Exception $e) {
390			// if flat re-sharing is not supported by the remote server
391			// we re-throw the exception and fall back to the old behaviour.
392			// (flat re-shares has been introduced in Nextcloud 9.1)
393			if ($e->getCode() === Http::STATUS_INTERNAL_SERVER_ERROR) {
394			throw $e;
395			}
396			}
397
398			return $result;
399			}
400
401			/**
402			* send action regarding federated sharing to the remote server using the OCM API
403			*
404			* @param $remoteDomain
405			* @param $fields
406			* @param $action
407			*
408			* @return bool
409			*/
410			protected function tryOCMEndPoint($remoteDomain, $fields, $action) {
411			switch ($action) {
412			case 'share':
413			$share = $this->cloudFederationFactory->getCloudFederationShare(
414			$fields['shareWith'] . '@' . $remoteDomain,
415			$fields['name'],
416			'',
417			$fields['remoteId'],
418			$fields['ownerFederatedId'],
419			$fields['owner'],
420			$fields['sharedByFederatedId'],
421			$fields['sharedBy'],
422			$fields['token'],
423			$fields['shareType'],
424			'file'
425			);
426			return $this->federationProviderManager->sendShare($share);
427			case 'reshare':
428			// ask owner to reshare a file
429			$notification = $this->cloudFederationFactory->getCloudFederationNotification();
430			$notification->setMessage('REQUEST_RESHARE',
431			'file',
432			$fields['remoteId'],
433			[
434			'sharedSecret' => $fields['token'],
435			'shareWith' => $fields['shareWith'],
436			'senderId' => $fields['localId'],
437			'shareType' => $fields['shareType'],
438			'message' => 'Ask owner to reshare the file'
439			]
440			);
441			return $this->federationProviderManager->sendNotification($remoteDomain, $notification);
442			case 'unshare':
443			//owner unshares the file from the recipient again
444			$notification = $this->cloudFederationFactory->getCloudFederationNotification();
445			$notification->setMessage('SHARE_UNSHARED',
446			'file',
447			$fields['remoteId'],
448			[
449			'sharedSecret' => $fields['token'],
450			'messgage' => 'file is no longer shared with you'
451			]
452			);
453			return $this->federationProviderManager->sendNotification($remoteDomain, $notification);
454			case 'reshare_undo':
455			// if a reshare was unshared we send the information to the initiator/owner
456			$notification = $this->cloudFederationFactory->getCloudFederationNotification();
457			$notification->setMessage('RESHARE_UNDO',
458			'file',
459			$fields['remoteId'],
460			[
461			'sharedSecret' => $fields['token'],
462			'message' => 'reshare was revoked'
463			]
464			);
465			return $this->federationProviderManager->sendNotification($remoteDomain, $notification);
466			}
467
468			return false;
469			}
470			}
471

nextcloud / server

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Notifications::sendRemoteShare() B

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