RequestHandlerController::assertOutgoingSharingEnabled() - Code Metrics - Inspection of "[WIP] Federated sharing new spec" - owncloud/core - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#32303)

by Victor

created 2018-09-10 12:21 UTC

assertOutgoingSharingEnabled() A

↳ Parent: RequestHandlerController

Complexity

Conditions	3
Paths	2

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	3
nc	2
nop	0
dl	0
loc	7
rs	10
c	0
b	0
f	0

<?php
/**
 * @author Arthur Schiwon <[email protected]>
 * @author Björn Schießle <[email protected]>
 * @author Joas Schilling <[email protected]>
 * @author Lukas Reschke <[email protected]>
 * @author Morris Jobke <[email protected]>
 * @author Thomas Müller <[email protected]>
 *
 * @copyright Copyright (c) 2018, ownCloud GmbH
 * @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\Controller;

use OC\OCS\Result;
use OCA\FederatedFileSharing\Address;
use OCA\FederatedFileSharing\AddressHandler;
use OCA\FederatedFileSharing\FederatedShareProvider;
use OCA\FederatedFileSharing\FedShareManager;
use OCA\FederatedFileSharing\Ocm\Exception\BadRequestException;
use OCA\FederatedFileSharing\Ocm\Exception\NotImplementedException;
use OCA\FederatedFileSharing\Ocm\Exception\OcmException;
use OCP\App\IAppManager;
use OCP\AppFramework\Http;
use OCP\AppFramework\OCSController;
use OCP\Constants;
use OCP\IRequest;
use OCP\IUserManager;
use OCP\Share;
use OCP\Share\IShare;

/**
 * Class RequestHandlerController
 *
 * Handles OCS Request to the federated share API
 *
 * @package OCA\FederatedFileSharing\API
 */
class RequestHandlerController extends OCSController {

	/** @var FederatedShareProvider */
	private $federatedShareProvider;

	/** @var IAppManager */
	private $appManager;

	/** @var IUserManager */
	private $userManager;

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

	/** @var  FedShareManager */
	private $fedShareManager;

	/**
	 * Server2Server constructor.
	 *
	 * @param string $appName
	 * @param IRequest $request
	 * @param FederatedShareProvider $federatedShareProvider
	 * @param IAppManager $appManager
	 * @param IUserManager $userManager
	 * @param AddressHandler $addressHandler
	 * @param FedShareManager $fedShareManager
	 */
	public function __construct($appName,
								IRequest $request,
								FederatedShareProvider $federatedShareProvider,
								IAppManager $appManager,
								IUserManager $userManager,
								AddressHandler $addressHandler,
								FedShareManager $fedShareManager
	) {
		parent::__construct($appName, $request);

		$this->federatedShareProvider = $federatedShareProvider;
		$this->appManager = $appManager;
		$this->userManager = $userManager;
		$this->addressHandler = $addressHandler;
		$this->fedShareManager = $fedShareManager;
	}

	/**
	 * @NoCSRFRequired
	 * @PublicPage
	 *
	 * create a new share
	 *
	 * @return Result
	 */
	public function createShare() {
		try {
			$this->assertIncomingSharingEnabled();
			$remote = $this->request->getParam('remote', null);
			$token = $this->request->getParam('token', null);
			$name = $this->request->getParam('name', null);
			$owner = $this->request->getParam('owner', null);
			$sharedBy = $this->request->getParam('sharedBy', null);
			$shareWith = $this->request->getParam('shareWith', null);
			$remoteId = $this->request->getParam('remoteId', null);
			$sharedByFederatedId = $this->request->getParam(
				'sharedByFederatedId',
				null
			);
			$ownerFederatedId = $this->request->getParam('ownerFederatedId', null);
			$hasMissingParams = $this->hasNull(
				[$remote, $token, $name, $owner, $remoteId, $shareWith]
			);
			if ($hasMissingParams) {
				throw new BadRequestException(
					'server can not add remote share, missing parameter'
				);
			}
			if (!\OCP\Util::isValidFileName($name)) {
				throw new BadRequestException(
					'The mountpoint name contains invalid characters.'
				);
			}
			// FIXME this should be a method in the user management instead
			\OCP\Util::writeLog('files_sharing', 'shareWith before, ' . $shareWith, \OCP\Util::DEBUG);
			\OCP\Util::emitHook(
				'\OCA\Files_Sharing\API\Server2Server',
				'preLoginNameUsedAsUserName',
				['uid' => &$shareWith]
			);
			\OCP\Util::writeLog('files_sharing', 'shareWith after, ' . $shareWith, \OCP\Util::DEBUG);
			if (!$this->userManager->userExists($shareWith)) {
				throw new BadRequestException('User does not exist');
			}

			if ($ownerFederatedId === null) {
				$ownerFederatedId = $owner . '@' . $this->addressHandler->normalizeRemote($remote);
			}
			// if the owner of the share and the initiator are the same user
			// we also complete the federated share ID for the initiator
			if ($sharedByFederatedId === null && $owner === $sharedBy) {
				$sharedByFederatedId = $ownerFederatedId;
			}

			$ownerAddress = new Address($ownerFederatedId);
			$sharedByAddress = new Address($sharedByFederatedId);

			$this->fedShareManager->createShare(
				$ownerAddress,
				$sharedByAddress,
				$shareWith,
				$remoteId,
				$name,
				$token
			);
		} catch (OcmException $e) {
			return new Result(
				null,
				$e->getHttpStatusCode(),
				$e->getMessage()
			);
		} catch (\Exception $e) {
			\OCP\Util::writeLog(
				'files_sharing',
				'server can not add remote share, ' . $e->getMessage(),
				\OCP\Util::ERROR
			);
			return new Result(
				null,
				Http::STATUS_INTERNAL_SERVER_ERROR,
				'internal server error, was not able to add share from ' . $remote
function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}
			);
		}
		return new Result();
	}

	/**
	 * @NoCSRFRequired
	 * @PublicPage
	 *
	 * create re-share on behalf of another user
	 *
	 * @param int $id
	 *
	 * @return Result
	 */
	public function reShare($id) {
		$token = $this->request->getParam('token', null);
		$shareWith = $this->request->getParam('shareWith', null);
		$permission = $this->request->getParam('permission', null);
		$remoteId = $this->request->getParam('remoteId', null);

		if ($this->hasNull([$id, $token, $shareWith, $permission, $remoteId])) {
			return new Result(null, Http::STATUS_BAD_REQUEST);
		}

		try {
			$permission = (int) $permission;
			$remoteId = (int) $remoteId;
			$share = $this->getValidShare($id);

			// don't allow to share a file back to the owner
			list($user, $remote) = $this->addressHandler->splitUserRemote($shareWith);
			$owner = $share->getShareOwner();
			$currentServer = $this->addressHandler->generateRemoteURL();
			if ($this->addressHandler->compareAddresses($user, $remote, $owner, $currentServer)) {
				return new Result(null, Http::STATUS_FORBIDDEN);
			}

			$reSharingAllowed = $share->getPermissions() & Constants::PERMISSION_SHARE;
			if (!$reSharingAllowed) {
				return new Result(null, Http::STATUS_BAD_REQUEST);
			}
			$result = $this->fedShareManager->reShare(
				$share,
				$remoteId,
				$shareWith,
				$permission
			);
		} catch (Share\Exceptions\ShareNotFound $e) {
			return new Result(null, Http::STATUS_NOT_FOUND);
		} catch (BadRequestException $e) {
			return new Result(null, Http::STATUS_FORBIDDEN);
		} catch (\Exception $e) {
			return new Result(null, Http::STATUS_BAD_REQUEST);
		}

		return new Result(
			[
				'token' => $result->getToken(),
				'remoteId' => $result->getId()
			]
		);
	}

	/**
	 * @NoCSRFRequired
	 * @PublicPage
	 *
	 * accept server-to-server share
	 *
	 * @param int $id
	 *
	 * @return Result
	 */
	public function acceptShare($id) {
		try {
			$this->assertOutgoingSharingEnabled();
			$share = $this->getValidShare($id);
			$this->fedShareManager->acceptShare($share);
		} catch (NotImplementedException $e) {
			return new Result(
				null,
				Http::STATUS_SERVICE_UNAVAILABLE,
				'Server does not support federated cloud sharing'
			);
		} catch (Share\Exceptions\ShareNotFound $e) {
			// pass
		}
		return new Result();
	}

	/**
	 * @NoCSRFRequired
	 * @PublicPage
	 *
	 * decline server-to-server share
	 *
	 * @param int $id
	 *
	 * @return Result
	 */
	public function declineShare($id) {
		try {
			$this->assertOutgoingSharingEnabled();
			$share = $this->getValidShare($id);
			$this->fedShareManager->declineShare($share);
		} catch (NotImplementedException $e) {
			return new Result(
				null,
				Http::STATUS_SERVICE_UNAVAILABLE,
				'Server does not support federated cloud sharing'
			);
		} catch (Share\Exceptions\ShareNotFound $e) {
			// pass
		}

		return new Result();
	}

	/**
	 * @NoCSRFRequired
	 * @PublicPage
	 *
	 * remove server-to-server share if it was unshared by the owner
	 *
	 * @param int $id
	 *
	 * @return Result
	 */
	public function unshare($id) {
		try {
			$this->assertOutgoingSharingEnabled();
			$token = $this->request->getParam('token', null);
			if ($token && $id) {
				$this->fedShareManager->unshare($id, $token);
			}
		} catch (NotImplementedException $e) {
			return new Result(
				null,
				Http::STATUS_SERVICE_UNAVAILABLE,
				'Server does not support federated cloud sharing'
			);
		} catch (\Exception $e) {
			// pass
		}
		return new Result();
	}

	/**
	 * @NoCSRFRequired
	 * @PublicPage
	 *
	 * federated share was revoked, either by the owner or the re-sharer
	 *
	 * @param int $id
	 *
	 * @return Result
	 */
	public function revoke($id) {
		try {
			$share = $this->getValidShare($id);
			$this->fedShareManager->revoke($share);
		} catch (\Exception $e) {
			return new Result(null, Http::STATUS_BAD_REQUEST);
		}

		return new Result();
	}

	/**
	 * @NoCSRFRequired
	 * @PublicPage
	 *
	 * update share information to keep federated re-shares in sync
	 *
	 * @param int $id
	 *
	 * @return Result
	 */
	public function updatePermissions($id) {
		try {
			$permissions = $this->request->getParam('permissions', null);

			$share = $this->getValidShare($id);
			$validPermission = \ctype_digit((string)$permissions);
			if (!$validPermission) {
				throw new \Exception();
			}
			$this->fedShareManager->updatePermissions($share, (int)$permissions);
		} catch (\Exception $e) {
			return new Result(null, Http::STATUS_BAD_REQUEST);
		}

		return new Result();
	}

	/**
	 * Get share by id, validate it's type and token
	 *
	 * @param int $id
	 *
	 * @return IShare
	 *
	 * @throws Share\Exceptions\ShareNotFound
	 * @throws BadRequestException
	 */
	protected function getValidShare($id) {
		$share = $this->federatedShareProvider->getShareById($id);
		$token = $this->request->getParam('token', null);
		if ($share->getShareType() !== FederatedShareProvider::SHARE_TYPE_REMOTE
			|| $share->getToken() !== $token
		) {
			throw new BadRequestException();
		}
		return $share;
	}

	/**
	 * Make sure that incoming shares are enabled
	 *
	 * @return void
	 *
	 * @throws NotImplementedException
	 */
	protected function assertIncomingSharingEnabled() {
		if (!$this->appManager->isEnabledForUser('files_sharing')
			|| !$this->federatedShareProvider->isIncomingServer2serverShareEnabled()
		) {
			throw new NotImplementedException();
		}
	}
	
	/**
	 * Make sure that outgoing shares are enabled
	 *
	 * @return void
	 *
	 * @throws NotImplementedException
	 */
	protected function assertOutgoingSharingEnabled() {
		if (!$this->appManager->isEnabledForUser('files_sharing')
			|| !$this->federatedShareProvider->isOutgoingServer2serverShareEnabled()
		) {
			throw new NotImplementedException();
		}
	}

	/**
	 * Check if value is null or an array has any null item
	 *
	 * @param mixed $param
	 *
	 * @return bool
	 */
	protected function hasNull($param) {
		if (\is_array($param)) {
			return \in_array(null, $param, true);
		} else {
			return $param === null;
		}
	}
}


1		<?php
2		/**
3		* @author Arthur Schiwon <[email protected]>
4		* @author Björn Schießle <[email protected]>
5		* @author Joas Schilling <[email protected]>
6		* @author Lukas Reschke <[email protected]>
7		* @author Morris Jobke <[email protected]>
8		* @author Thomas Müller <[email protected]>
9		*
10		* @copyright Copyright (c) 2018, ownCloud GmbH
11		* @license AGPL-3.0
12		*
13		* This code is free software: you can redistribute it and/or modify
14		* it under the terms of the GNU Affero General Public License, version 3,
15		* as published by the Free Software Foundation.
16		*
17		* This program is distributed in the hope that it will be useful,
18		* but WITHOUT ANY WARRANTY; without even the implied warranty of
19		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20		* GNU Affero General Public License for more details.
21		*
22		* You should have received a copy of the GNU Affero General Public License, version 3,
23		* along with this program. If not, see <http://www.gnu.org/licenses/>
24		*
25		*/
26
27		namespace OCA\FederatedFileSharing\Controller;
28
29		use OC\OCS\Result;
30		use OCA\FederatedFileSharing\Address;
31		use OCA\FederatedFileSharing\AddressHandler;
32		use OCA\FederatedFileSharing\FederatedShareProvider;
33		use OCA\FederatedFileSharing\FedShareManager;
34		use OCA\FederatedFileSharing\Ocm\Exception\BadRequestException;
35		use OCA\FederatedFileSharing\Ocm\Exception\NotImplementedException;
36		use OCA\FederatedFileSharing\Ocm\Exception\OcmException;
37		use OCP\App\IAppManager;
38		use OCP\AppFramework\Http;
39		use OCP\AppFramework\OCSController;
40		use OCP\Constants;
41		use OCP\IRequest;
42		use OCP\IUserManager;
43		use OCP\Share;
44		use OCP\Share\IShare;
45
46		/**
47		* Class RequestHandlerController
48		*
49		* Handles OCS Request to the federated share API
50		*
51		* @package OCA\FederatedFileSharing\API
52		*/
53		class RequestHandlerController extends OCSController {
54
55		/** @var FederatedShareProvider */
56		private $federatedShareProvider;
57
58		/** @var IAppManager */
59		private $appManager;
60
61		/** @var IUserManager */
62		private $userManager;
63
64		/** @var AddressHandler */
65		private $addressHandler;
66
67		/** @var FedShareManager */
68		private $fedShareManager;
69
70		/**
71		* Server2Server constructor.
72		*
73		* @param string $appName
74		* @param IRequest $request
75		* @param FederatedShareProvider $federatedShareProvider
76		* @param IAppManager $appManager
77		* @param IUserManager $userManager
78		* @param AddressHandler $addressHandler
79		* @param FedShareManager $fedShareManager
80		*/
81		public function __construct($appName,
82		IRequest $request,
83		FederatedShareProvider $federatedShareProvider,
84		IAppManager $appManager,
85		IUserManager $userManager,
86		AddressHandler $addressHandler,
87		FedShareManager $fedShareManager
88		) {
89		parent::__construct($appName, $request);
90
91		$this->federatedShareProvider = $federatedShareProvider;
92		$this->appManager = $appManager;
93		$this->userManager = $userManager;
94		$this->addressHandler = $addressHandler;
95		$this->fedShareManager = $fedShareManager;
96		}
97
98		/**
99		* @NoCSRFRequired
100		* @PublicPage
101		*
102		* create a new share
103		*
104		* @return Result
105		*/
106		public function createShare() {
107		try {
108		$this->assertIncomingSharingEnabled();
109		$remote = $this->request->getParam('remote', null);
110		$token = $this->request->getParam('token', null);
111		$name = $this->request->getParam('name', null);
112		$owner = $this->request->getParam('owner', null);
113		$sharedBy = $this->request->getParam('sharedBy', null);
114		$shareWith = $this->request->getParam('shareWith', null);
115		$remoteId = $this->request->getParam('remoteId', null);
116		$sharedByFederatedId = $this->request->getParam(
117		'sharedByFederatedId',
118		null
119		);
120		$ownerFederatedId = $this->request->getParam('ownerFederatedId', null);
121		$hasMissingParams = $this->hasNull(
122		[$remote, $token, $name, $owner, $remoteId, $shareWith]
123		);
124		if ($hasMissingParams) {
125		throw new BadRequestException(
126		'server can not add remote share, missing parameter'
127		);
128		}
129		if (!\OCP\Util::isValidFileName($name)) {
130		throw new BadRequestException(
131		'The mountpoint name contains invalid characters.'
132		);
133		}
134		// FIXME this should be a method in the user management instead
135		\OCP\Util::writeLog('files_sharing', 'shareWith before, ' . $shareWith, \OCP\Util::DEBUG);
136		\OCP\Util::emitHook(
137		'\OCA\Files_Sharing\API\Server2Server',
138		'preLoginNameUsedAsUserName',
139		['uid' => &$shareWith]
140		);
141		\OCP\Util::writeLog('files_sharing', 'shareWith after, ' . $shareWith, \OCP\Util::DEBUG);
142		if (!$this->userManager->userExists($shareWith)) {
143		throw new BadRequestException('User does not exist');
144		}
145
146		if ($ownerFederatedId === null) {
147		$ownerFederatedId = $owner . '@' . $this->addressHandler->normalizeRemote($remote);
148		}
149		// if the owner of the share and the initiator are the same user
150		// we also complete the federated share ID for the initiator
151		if ($sharedByFederatedId === null && $owner === $sharedBy) {
152		$sharedByFederatedId = $ownerFederatedId;
153		}
154
155		$ownerAddress = new Address($ownerFederatedId);
156		$sharedByAddress = new Address($sharedByFederatedId);
157
158		$this->fedShareManager->createShare(
159		$ownerAddress,
160		$sharedByAddress,
161		$shareWith,
162		$remoteId,
163		$name,
164		$token
165		);
166		} catch (OcmException $e) {
167		return new Result(
168		null,
169		$e->getHttpStatusCode(),
170		$e->getMessage()
171		);
172		} catch (\Exception $e) {
173		\OCP\Util::writeLog(
174		'files_sharing',
175		'server can not add remote share, ' . $e->getMessage(),
176		\OCP\Util::ERROR
177		);
178		return new Result(
179		null,
180		Http::STATUS_INTERNAL_SERVER_ERROR,
181		'internal server error, was not able to add share from ' . $remote
		0 ignored issues – show Bug introduced 2018-07-13 21:09 UTC by Report Bug Copy Issue Report The variable `$remote` does not seem to be defined for all execution paths leading up to this point. If you define a variable conditionally, it can happen that it is not defined for all execution paths. Let’s take a look at an example: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } // $x is potentially undefined here. echo $x; } In the above example, the variable `$x` is defined if you pass “foo” or “bar” as argument for `$a`. However, since the `switch` statement has no default case statement, if you pass any other value, the variable `$x` would be undefined. Available Fixes Check for existence of the variable explicitly: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } if (isset($x)) { // Make sure it's always set. echo $x; } } Define a default value for the variable: function myFunction($a) { $x = ''; // Set a default which gets overridden for certain paths. switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } echo $x; } Add a value for the missing path: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; // We add support for the missing case. default: $x = ''; break; } echo $x; } Loading history...
182		);
183		}
184		return new Result();
185		}
186
187		/**
188		* @NoCSRFRequired
189		* @PublicPage
190		*
191		* create re-share on behalf of another user
192		*
193		* @param int $id
194		*
195		* @return Result
196		*/
197		public function reShare($id) {
198		$token = $this->request->getParam('token', null);
199		$shareWith = $this->request->getParam('shareWith', null);
200		$permission = $this->request->getParam('permission', null);
201		$remoteId = $this->request->getParam('remoteId', null);
202
203		if ($this->hasNull([$id, $token, $shareWith, $permission, $remoteId])) {
204		return new Result(null, Http::STATUS_BAD_REQUEST);
205		}
206
207		try {
208		$permission = (int) $permission;
209		$remoteId = (int) $remoteId;
210		$share = $this->getValidShare($id);
211
212		// don't allow to share a file back to the owner
213		list($user, $remote) = $this->addressHandler->splitUserRemote($shareWith);
214		$owner = $share->getShareOwner();
215		$currentServer = $this->addressHandler->generateRemoteURL();
216		if ($this->addressHandler->compareAddresses($user, $remote, $owner, $currentServer)) {
217		return new Result(null, Http::STATUS_FORBIDDEN);
218		}
219
220		$reSharingAllowed = $share->getPermissions() & Constants::PERMISSION_SHARE;
221		if (!$reSharingAllowed) {
222		return new Result(null, Http::STATUS_BAD_REQUEST);
223		}
224		$result = $this->fedShareManager->reShare(
225		$share,
226		$remoteId,
227		$shareWith,
228		$permission
229		);
230		} catch (Share\Exceptions\ShareNotFound $e) {
231		return new Result(null, Http::STATUS_NOT_FOUND);
232		} catch (BadRequestException $e) {
233		return new Result(null, Http::STATUS_FORBIDDEN);
234		} catch (\Exception $e) {
235		return new Result(null, Http::STATUS_BAD_REQUEST);
236		}
237
238		return new Result(
239		[
240		'token' => $result->getToken(),
241		'remoteId' => $result->getId()
242		]
243		);
244		}
245
246		/**
247		* @NoCSRFRequired
248		* @PublicPage
249		*
250		* accept server-to-server share
251		*
252		* @param int $id
253		*
254		* @return Result
255		*/
256	View Code Duplication	public function acceptShare($id) {
257		try {
258		$this->assertOutgoingSharingEnabled();
259		$share = $this->getValidShare($id);
260		$this->fedShareManager->acceptShare($share);
261		} catch (NotImplementedException $e) {
262		return new Result(
263		null,
264		Http::STATUS_SERVICE_UNAVAILABLE,
265		'Server does not support federated cloud sharing'
266		);
267		} catch (Share\Exceptions\ShareNotFound $e) {
268		// pass
269		}
270		return new Result();
271		}
272
273		/**
274		* @NoCSRFRequired
275		* @PublicPage
276		*
277		* decline server-to-server share
278		*
279		* @param int $id
280		*
281		* @return Result
282		*/
283	View Code Duplication	public function declineShare($id) {
284		try {
285		$this->assertOutgoingSharingEnabled();
286		$share = $this->getValidShare($id);
287		$this->fedShareManager->declineShare($share);
288		} catch (NotImplementedException $e) {
289		return new Result(
290		null,
291		Http::STATUS_SERVICE_UNAVAILABLE,
292		'Server does not support federated cloud sharing'
293		);
294		} catch (Share\Exceptions\ShareNotFound $e) {
295		// pass
296		}
297
298		return new Result();
299		}
300
301		/**
302		* @NoCSRFRequired
303		* @PublicPage
304		*
305		* remove server-to-server share if it was unshared by the owner
306		*
307		* @param int $id
308		*
309		* @return Result
310		*/
311		public function unshare($id) {
312		try {
313		$this->assertOutgoingSharingEnabled();
314		$token = $this->request->getParam('token', null);
315		if ($token && $id) {
316		$this->fedShareManager->unshare($id, $token);
317		}
318		} catch (NotImplementedException $e) {
319		return new Result(
320		null,
321		Http::STATUS_SERVICE_UNAVAILABLE,
322		'Server does not support federated cloud sharing'
323		);
324		} catch (\Exception $e) {
325		// pass
326		}
327		return new Result();
328		}
329
330		/**
331		* @NoCSRFRequired
332		* @PublicPage
333		*
334		* federated share was revoked, either by the owner or the re-sharer
335		*
336		* @param int $id
337		*
338		* @return Result
339		*/
340		public function revoke($id) {
341		try {
342		$share = $this->getValidShare($id);
343		$this->fedShareManager->revoke($share);
344		} catch (\Exception $e) {
345		return new Result(null, Http::STATUS_BAD_REQUEST);
346		}
347
348		return new Result();
349		}
350
351		/**
352		* @NoCSRFRequired
353		* @PublicPage
354		*
355		* update share information to keep federated re-shares in sync
356		*
357		* @param int $id
358		*
359		* @return Result
360		*/
361		public function updatePermissions($id) {
362		try {
363		$permissions = $this->request->getParam('permissions', null);
364
365		$share = $this->getValidShare($id);
366		$validPermission = \ctype_digit((string)$permissions);
367		if (!$validPermission) {
368		throw new \Exception();
369		}
370		$this->fedShareManager->updatePermissions($share, (int)$permissions);
371		} catch (\Exception $e) {
372		return new Result(null, Http::STATUS_BAD_REQUEST);
373		}
374
375		return new Result();
376		}
377
378		/**
379		* Get share by id, validate it's type and token
380		*
381		* @param int $id
382		*
383		* @return IShare
384		*
385		* @throws Share\Exceptions\ShareNotFound
386		* @throws BadRequestException
387		*/
388		protected function getValidShare($id) {
389		$share = $this->federatedShareProvider->getShareById($id);
390		$token = $this->request->getParam('token', null);
391		if ($share->getShareType() !== FederatedShareProvider::SHARE_TYPE_REMOTE
392		\|\| $share->getToken() !== $token
393		) {
394		throw new BadRequestException();
395		}
396		return $share;
397		}
398
399		/**
400		* Make sure that incoming shares are enabled
401		*
402		* @return void
403		*
404		* @throws NotImplementedException
405		*/
406		protected function assertIncomingSharingEnabled() {
407		if (!$this->appManager->isEnabledForUser('files_sharing')
408		\|\| !$this->federatedShareProvider->isIncomingServer2serverShareEnabled()
409		) {
410		throw new NotImplementedException();
411		}
412		}
413
414		/**
415		* Make sure that outgoing shares are enabled
416		*
417		* @return void
418		*
419		* @throws NotImplementedException
420		*/
421		protected function assertOutgoingSharingEnabled() {
422		if (!$this->appManager->isEnabledForUser('files_sharing')
423		\|\| !$this->federatedShareProvider->isOutgoingServer2serverShareEnabled()
424		) {
425		throw new NotImplementedException();
426		}
427		}
428
429		/**
430		* Check if value is null or an array has any null item
431		*
432		* @param mixed $param
433		*
434		* @return bool
435		*/
436	View Code Duplication	protected function hasNull($param) {
437		if (\is_array($param)) {
438		return \in_array(null, $param, true);
439		} else {
440		return $param === null;
441		}
442		}
443		}
444

owncloud / core

Pull Request — master (#32303)

assertOutgoingSharingEnabled() A

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