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Share20OcsController.php
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Share20OcsController.php
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<?php
/**
* @author Viktar Dubiniuk <dubiniuk@owncloud.com>
*
* @copyright Copyright (c) 2019, 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\Files_Sharing\Controller;
use Exception;
use OC\Files\Filesystem;
use OC\Share20\Exception\ProviderException;
use OCA\Files_Sharing\SharingAllowlist;
use OCP\Constants;
use OC\OCS\Result;
use OCP\AppFramework\OCSController;
use OCP\Files\File;
use OCP\Files\Folder;
use OCP\Files\IRootFolder;
use OCP\Files\NotFoundException;
use OCP\Files\StorageNotAvailableException;
use OCP\IConfig;
use OCP\IGroupManager;
use OCP\IL10N;
use OCP\IRequest;
use OCP\IURLGenerator;
use OCP\IUser;
use OCP\IUserManager;
use OCP\IUserSession;
use OCP\Lock\ILockingProvider;
use OCP\Lock\LockedException;
use OCP\Share;
use OCP\Share\Exceptions\GenericShareException;
use OCP\Share\Exceptions\ShareNotFound;
use OCP\Share\IManager;
use OCP\Share\IShare;
use OCA\Files_Sharing\Service\NotificationPublisher;
use OCA\Files_Sharing\Helper;
use OCA\Files_Sharing\SharingBlacklist;
use Symfony\Component\EventDispatcher\EventDispatcher;
use Symfony\Component\EventDispatcher\GenericEvent;
use OC\Helper\UserTypeHelper;
/**
* Class Share20OcsController
*
* @package OCA\Files_Sharing\Controller
*/
class Share20OcsController extends OCSController {
/** @var IManager */
private $shareManager;
/** @var IGroupManager */
private $groupManager;
/** @var IUserManager */
private $userManager;
/** @var IRootFolder */
private $rootFolder;
/** @var IUserSession */
private $userSession;
/** @var IURLGenerator */
private $urlGenerator;
/** @var IL10N */
private $l;
/** @var IConfig */
private $config;
/** @var NotificationPublisher */
private $notificationPublisher;
/** @var EventDispatcher */
private $eventDispatcher;
/** @var SharingBlacklist */
private $sharingBlacklist;
/** @var SharingAllowlist */
private $sharingAllowlist;
/**
* @var string
*/
private $additionalInfoField;
/** @var UserTypeHelper */
private $userTypeHelper;
/** @var Folder[] */
private $currentUserFolder;
public function __construct(
$appName,
IRequest $request,
IManager $shareManager,
IGroupManager $groupManager,
IUserManager $userManager,
IRootFolder $rootFolder,
IURLGenerator $urlGenerator,
IUserSession $userSession,
IL10N $l10n,
IConfig $config,
NotificationPublisher $notificationPublisher,
EventDispatcher $eventDispatcher,
SharingBlacklist $sharingBlacklist,
SharingAllowlist $sharingAllowlist,
UserTypeHelper $userTypeHelper
) {
parent::__construct($appName, $request);
$this->request = $request;
$this->shareManager = $shareManager;
$this->groupManager = $groupManager;
$this->userManager = $userManager;
$this->rootFolder = $rootFolder;
$this->urlGenerator = $urlGenerator;
$this->l = $l10n;
$this->config = $config;
$this->notificationPublisher = $notificationPublisher;
$this->eventDispatcher = $eventDispatcher;
$this->sharingBlacklist = $sharingBlacklist;
$this->sharingAllowlist = $sharingAllowlist;
$this->additionalInfoField = $this->config->getAppValue('core', 'user_additional_info_field', '');
$this->userSession = $userSession;
$this->userTypeHelper = $userTypeHelper;
}
/**
* Returns the additional info to display behind the display name as configured.
*
* @param IUser $user user for which to retrieve the additional info
* @return string|null additional info or null if none to be displayed
*/
private function getAdditionalUserInfo(IUser $user) {
if ($this->additionalInfoField === 'email') {
return $user->getEMailAddress();
} elseif ($this->additionalInfoField === 'id') {
return $user->getUID();
}
return null;
}
/**
* Returns root folder of the current user
*
* @return Folder
*/
private function getCurrentUserFolder() {
// cache only one key, but be sure to check current user session id in case
// current user folder changes
$userSessionId = $this->userSession->getUser()->getUID();
if (!isset($this->currentUserFolder[$userSessionId])) {
$this->currentUserFolder = [$userSessionId => $this->rootFolder->getUserFolder($userSessionId)];
}
return $this->currentUserFolder[$userSessionId];
}
/**
* Convert an IShare to an array for OCS output
*
* @param IShare $share
* @param bool $received whether it's formatting received shares
* @return array
* @throws NotFoundException In case the node can't be resolved.
* @throws \OCP\Files\InvalidPathException
* @throws \OCP\Files\StorageNotAvailableException
*/
protected function formatShare(IShare $share, $received = false) {
$sharedBy = $this->userManager->get($share->getSharedBy());
$shareFileOwner = $this->userManager->get($share->getShareOwner());
$result = [
'id' => $share->getId(),
'share_type' => $share->getShareType(),
'uid_owner' => $share->getSharedBy(),
'displayname_owner' => $sharedBy !== null ? $sharedBy->getDisplayName() : $share->getSharedBy(),
'permissions' => $share->getPermissions(),
'stime' => $share->getShareTime() ? $share->getShareTime()->getTimestamp() : null,
'parent' => null,
'expiration' => null,
'token' => null,
'uid_file_owner' => $share->getShareOwner(),
'displayname_file_owner' => $shareFileOwner !== null ? $shareFileOwner->getDisplayName() : $share->getShareOwner()
];
if ($sharedBy !== null) {
$result['additional_info_owner'] = $this->getAdditionalUserInfo($sharedBy);
}
if ($shareFileOwner !== null) {
$result['additional_info_file_owner'] = $this->getAdditionalUserInfo($shareFileOwner);
}
if ($received) {
// also add state
$result['state'] = $share->getState();
// can only fetch path info if mounted already or if owner
if ($share->getState() === Share::STATE_ACCEPTED || $share->getShareOwner() === $this->userSession->getUser()->getUID()) {
$userFolder = $this->getCurrentUserFolder();
} else {
// need to go through owner user for pending shares
$userFolder = $this->rootFolder->getUserFolder($share->getShareOwner());
}
} else {
$userFolder = $this->getCurrentUserFolder();
}
// we need to retrieve a share mountpoint node for the userfolder,
// we cannot use share->getNode() as it retrieves the original node and
// not a user folder mount. Share node will be needed to retrieve e.g.
// shared storage details
$shareNodes = $userFolder->getById($share->getNodeId(), true);
$shareNode = $shareNodes[0] ?? null;
if ($shareNode === null) {
throw new NotFoundException();
}
// An incoming share that has not been accepted yet would show the
// share owner's internal path. Use the target path instead.
if ($received && $share->getState() !== Share::STATE_ACCEPTED) {
$sharePath = $share->getTarget();
} else {
$sharePath = $userFolder->getRelativePath($shareNode->getPath());
}
$result['path'] = $sharePath;
$result['mimetype'] = $shareNode->getMimeType();
$result['storage_id'] = $shareNode->getStorage()->getId();
$result['storage'] = $shareNode->getStorage()->getCache()->getNumericStorageId();
$result['item_type'] = $share->getNodeType();
$result['item_source'] = $shareNode->getId();
$result['file_source'] = $shareNode->getId();
$result['file_parent'] = $shareNode->getParent()->getId();
$result['file_target'] = $share->getTarget();
$expiration = $share->getExpirationDate();
if ($expiration !== null) {
$result['expiration'] = $expiration->format('Y-m-d 00:00:00');
}
if ($share->getShareType() === Share::SHARE_TYPE_USER) {
$sharedWith = $this->userManager->get($share->getSharedWith());
$result['share_with'] = $share->getSharedWith();
$result['share_with_displayname'] = $sharedWith !== null ? $sharedWith->getDisplayName() : $share->getSharedWith();
$result['share_with_user_type'] = $this->userTypeHelper->getUserType($share->getSharedWith());
if ($sharedWith !== null) {
$result['share_with_additional_info'] = $this->getAdditionalUserInfo($sharedWith);
}
} elseif ($share->getShareType() === Share::SHARE_TYPE_GROUP) {
$group = $this->groupManager->get($share->getSharedWith());
$result['share_with'] = $share->getSharedWith();
$result['share_with_displayname'] = $group !== null ? $group->getDisplayName() : $share->getSharedWith();
} elseif ($share->getShareType() === Share::SHARE_TYPE_LINK) {
if ($share->getPassword() !== null) {
// Misleading names ahead!: These fields are miss-used to
// read/write public link password-hashes
$result['share_with'] = '***redacted***';
$result['share_with_displayname'] = '***redacted***';
}
$result['name'] = $share->getName();
$result['token'] = $share->getToken();
if ($share->getToken() !== null) {
$result['url'] = $this->urlGenerator->linkToRouteAbsolute('files_sharing.sharecontroller.showShare', ['token' => $share->getToken()]);
}
} elseif ($share->getShareType() === Share::SHARE_TYPE_REMOTE || $share->getShareType() === Share::SHARE_TYPE_REMOTE_GROUP) {
$result['share_with'] = $share->getSharedWith();
$result['share_with_displayname'] = $share->getSharedWith();
$result['token'] = $share->getToken();
}
$result['mail_send'] = $share->getMailSend() ? 1 : 0;
$result['attributes'] = null;
if ($attributes = $share->getAttributes()) {
$result['attributes'] = \json_encode($attributes->toArray());
}
return $result;
}
/**
* Get a specific share by id
*
* @NoAdminRequired
* @NoCSRFRequired
*
* @param string $id
* @return Result
*/
public function getShare($id) {
if (!$this->shareManager->shareApiEnabled()) {
return new Result(null, 404, $this->l->t('Share API is disabled'));
}
try {
$share = $this->getShareById($id);
} catch (ShareNotFound $e) {
return new Result(null, 404, $this->l->t('Wrong share ID, share doesn\'t exist'));
}
if ($this->canAccessShare($share)) {
try {
$share = $this->formatShare($share);
return new Result([$share]);
} catch (NotFoundException $e) {
//Fall through
} catch (StorageNotAvailableException $e) {
// could happen if the share node points to a storage which isn't available
// TODO: This should go through an injected logger instance
\OCP\Util::logException('core', $e, \OCP\Util::ERROR);
return new Result(null, 404, $this->l->t('Share points to a node not available'));
}
}
return new Result(null, 404, $this->l->t('Wrong share ID, share doesn\'t exist'));
}
/**
* Delete a share
*
* @NoAdminRequired
*
* @param string $id
* @return Result
* @throws LockedException
* @throws NotFoundException
* @throws ShareNotFound
*/
public function deleteShare($id) {
if (!$this->shareManager->shareApiEnabled()) {
return new Result(null, 404, $this->l->t('Share API is disabled'));
}
try {
$share = $this->getShareById($id);
} catch (ShareNotFound $e) {
return new Result(null, 404, $this->l->t('Wrong share ID, share doesn\'t exist'));
}
try {
$share->getNode()->lock(ILockingProvider::LOCK_SHARED);
} catch (LockedException $e) {
return new Result(null, 404, 'could not delete share');
}
if (!$this->canChangeShare($share)) {
$share->getNode()->unlock(ILockingProvider::LOCK_SHARED);
return new Result(null, 404, $this->l->t('Could not delete share'));
}
$this->shareManager->deleteShare($share);
$share->getNode()->unlock(ILockingProvider::LOCK_SHARED);
return new Result();
}
/**
* @NoAdminRequired
*
* @return Result
* @throws LockedException
* @throws NotFoundException
* @throws \OCP\Files\InvalidPathException
*/
public function createShare() {
$share = $this->shareManager->newShare();
if (!$this->shareManager->shareApiEnabled()) {
return new Result(null, 404, $this->l->t('Share API is disabled'));
}
$name = $this->request->getParam('name', null);
// Verify path
$path = $this->request->getParam('path', null);
if ($path === null) {
return new Result(null, 404, $this->l->t('Please specify a file or folder path'));
}
$userFolder = $this->getCurrentUserFolder();
try {
$path = $userFolder->get($path);
} catch (NotFoundException $e) {
return new Result(null, 404, $this->l->t('Wrong path, file/folder doesn\'t exist'));
}
$share->setNode($path);
try {
$share->getNode()->lock(ILockingProvider::LOCK_SHARED);
} catch (LockedException $e) {
return new Result(null, 404, 'Could not create share');
}
$shareType = (int)$this->request->getParam('shareType', '-1');
$noPermissionFromRequest = false;
// Parse permissions (if available)
$permissions = $this->getPermissionsFromRequest();
if ($permissions === null) {
$noPermissionFromRequest = true;
if ($shareType !== Share::SHARE_TYPE_LINK) {
$permissions = $this->config->getAppValue('core', 'shareapi_default_permissions', Constants::PERMISSION_ALL);
} else {
$permissions = Constants::PERMISSION_ALL;
}
} else {
$permissions = (int)$permissions;
}
/*
* Hack for https://github.com/owncloud/core/issues/22587
* We check the permissions via webdav. But the permissions of the mount point
* do not equal the share permissions. Here we fix that for federated mounts.
*/
if ($path->getStorage()->instanceOfStorage('OCA\Files_Sharing\External\Storage')) {
$permissions &= ~($permissions & ~$path->getPermissions());
}
//Expire date
$expireDate = $this->request->getParam('expireDate', '');
if ($expireDate !== '') {
try {
$expireDate = $this->parseDate($expireDate);
$share->setExpirationDate($expireDate);
} catch (Exception $e) {
$share->getNode()->unlock(ILockingProvider::LOCK_SHARED);
return new Result(null, 404, $this->l->t('Invalid date, date format must be YYYY-MM-DD'));
}
}
$shareWith = $this->request->getParam('shareWith', null);
$globalAutoAccept = $this->config->getAppValue('core', 'shareapi_auto_accept_share', 'yes') === 'yes';
if ($shareType === Share::SHARE_TYPE_USER) {
$userAutoAccept = false;
if ($globalAutoAccept) {
$userAutoAccept = $this->config->getUserValue($shareWith, 'files_sharing', 'auto_accept_share', 'yes') === 'yes';
}
// Valid user is required to share. Fetch the user to retrieve
// the username later for setSharedWith().
$user = $this->userManager->get($shareWith);
if (!$user) {
$share->getNode()->unlock(ILockingProvider::LOCK_SHARED);
return new Result(null, 404, $this->l->t('Please specify a valid user'));
}
// Fetch the UID to match exactly with the user (case-sensitive).
$share->setSharedWith($user->getUID());
$share->setPermissions($permissions);
if ($userAutoAccept) {
$share->setState(Share::STATE_ACCEPTED);
} else {
$share->setState(Share::STATE_PENDING);
}
} elseif ($shareType === Share::SHARE_TYPE_GROUP) {
if (!$this->shareManager->allowGroupSharing()) {
$share->getNode()->unlock(ILockingProvider::LOCK_SHARED);
return new Result(null, 404, $this->l->t('Group sharing is disabled by the administrator'));
}
// Valid group is required to share
if (!\is_string($shareWith) || !$this->groupManager->groupExists($shareWith)) {
$share->getNode()->unlock(ILockingProvider::LOCK_SHARED);
return new Result(null, 404, $this->l->t('Please specify a valid group'));
}
if ($this->sharingBlacklist->isGroupBlacklisted($this->groupManager->get($shareWith))) {
return new Result(null, 403, $this->l->t('The group is blacklisted for sharing'));
}
$share->setSharedWith($shareWith);
$share->setPermissions($permissions);
if ($globalAutoAccept) {
$share->setState(Share::STATE_ACCEPTED);
} else {
$share->setState(Share::STATE_PENDING);
}
} elseif ($shareType === Share::SHARE_TYPE_LINK) {
if (!$this->shareManager->shareApiAllowLinks()) {
$share->getNode()->unlock(ILockingProvider::LOCK_SHARED);
return new Result(null, 404, $this->l->t('Public link sharing is disabled by the administrator'));
}
if ($this->sharingAllowlist->isPublicShareSharersGroupsAllowlistEnabled() &&
!$this->sharingAllowlist->isUserInPublicShareSharersGroupsAllowlist($this->userSession->getUser())
) {
return new Result(null, 403, $this->l->t('Public link creation is only possible for certain groups'));
}
$publicUploadAllowed = $this->shareManager->shareApiLinkAllowPublicUpload();
// legacy way, expecting that this won't be used together with "create-only" shares
$publicUpload = $this->request->getParam('publicUpload', null);
// a few permission checks
if ($publicUpload === 'true' || $permissions === Constants::PERMISSION_CREATE) {
// Check if public upload is allowed
if (!$publicUploadAllowed) {
$share->getNode()->unlock(ILockingProvider::LOCK_SHARED);
return new Result(null, 403, $this->l->t('Public upload disabled by the administrator'));
}
// Public upload can only be set for folders
if ($path instanceof File) {
$share->getNode()->unlock(ILockingProvider::LOCK_SHARED);
return new Result(null, 404, $this->l->t('Public upload is only possible for publicly shared folders'));
}
}
// don't allow "create"-permission if public upload is not allowed.
// we only need this check if permissions were passed via the request, otherwise
// it is already being handled.
$includesCreatePermission = $permissions & Constants::PERMISSION_CREATE;
if (!$noPermissionFromRequest && !$publicUploadAllowed && $includesCreatePermission) {
$share->getNode()->unlock(ILockingProvider::LOCK_SHARED);
return new Result(null, 403, $this->l->t('Public upload disabled by the administrator'));
}
// convert to permissions
if ($publicUpload === 'true') {
$share->setPermissions(
Constants::PERMISSION_READ |
Constants::PERMISSION_CREATE |
Constants::PERMISSION_UPDATE |
Constants::PERMISSION_DELETE
);
} elseif ($permissions === Constants::PERMISSION_CREATE ||
$permissions === (Constants::PERMISSION_READ | Constants::PERMISSION_CREATE | Constants::PERMISSION_UPDATE | Constants::PERMISSION_DELETE) ||
$permissions === (Constants::PERMISSION_READ | Constants::PERMISSION_UPDATE) ||
$permissions === (Constants::PERMISSION_READ | Constants::PERMISSION_CREATE)) {
$share->setPermissions($permissions);
} else {
// because when "publicUpload" is passed usually no permissions are set,
// which defaults to ALL. But in the case of link shares we default to READ...
$share->setPermissions(Constants::PERMISSION_READ);
}
// set name only if passed as parameter, empty string is allowed
if ($name !== null) {
$share->setName($name);
}
// Set password
$password = $this->request->getParam('password', '');
if ($password !== '') {
$share->setPassword($password);
}
} elseif ($shareType === Share::SHARE_TYPE_REMOTE || $shareType === Share::SHARE_TYPE_REMOTE_GROUP) {
if (!$this->shareManager->outgoingServer2ServerSharesAllowed()) {
$share->getNode()->unlock(ILockingProvider::LOCK_SHARED);
return new Result(null, 403, $this->l->t('Sharing %s failed because the back end does not allow shares from type %s', [$path->getPath(), $shareType]));
}
if (!\is_string($shareWith)) {
$share->getNode()->unlock(ILockingProvider::LOCK_SHARED);
return new Result(null, 404, $this->l->t('shareWith parameter must be a string'));
}
$share->setSharedWith($shareWith);
$share->setPermissions($permissions);
} else {
$share->getNode()->unlock(ILockingProvider::LOCK_SHARED);
return new Result(null, 400, $this->l->t('Unknown share type'));
}
$share->setShareType($shareType);
$share->setSharedBy($this->userSession->getUser()->getUID());
// set attributes array from request, or if not provided set empty array
$newAttributes = $this->request->getParam('attributes', null);
if ($newAttributes !== null) {
$share = $this->setShareAttributes($share, $newAttributes);
} else {
$share = $this->setShareAttributes($share, []);
}
try {
$share = $this->shareManager->createShare($share);
/**
* If auto accept enabled by admin and it is a group share,
* create sub-share for auto accept disabled users in pending state.
*/
if ($share->getShareType() === Share::SHARE_TYPE_GROUP && $globalAutoAccept) {
$subShare = $share;
$group = $this->groupManager->get($share->getSharedWith());
foreach ($group->getUsers() as $user) {
$userAutoAccept = $this->config->getUserValue($user->getUID(), 'files_sharing', 'auto_accept_share', 'yes') === 'yes';
if (!$userAutoAccept) {
$subShare->setState(Share::STATE_PENDING);
$this->shareManager->updateShareForRecipient($subShare, $user->getUID());
}
}
}
} catch (GenericShareException $e) {
$code = $e->getCode() === 0 ? 403 : $e->getCode();
$share->getNode()->unlock(ILockingProvider::LOCK_SHARED);
return new Result(null, $code, $e->getHint());
} catch (Exception $e) {
$share->getNode()->unlock(ILockingProvider::LOCK_SHARED);
return new Result(null, 403, $e->getMessage());
}
$share->getNode()->unlock(ILockingProvider::LOCK_SHARED);
$formattedShareAfterCreate = $this->formatShare($share);
return new Result($formattedShareAfterCreate);
}
/**
* @param File|Folder $node
* @param boolean $includeTags include tags in response
* @param int|null $stateFilter state filter or empty for all, defaults to 0 (accepted)
* @param array $requestedShareTypes a key-value array with the requested share types to
* be returned. The keys of the array are the share types to be returned, and the values
* whether the share type will be returned or not.
* [Share::SHARE_TYPE_USER => true, Share::SHARE_TYPE_GROUP => false]
* @return Result
*/
private function getSharedWithMe($node, $includeTags, $requestedShareTypes, $stateFilter = 0) {
// sharedWithMe is limited to user and group shares for compatibility.
$shares = [];
if (isset($requestedShareTypes[Share::SHARE_TYPE_USER]) && $requestedShareTypes[Share::SHARE_TYPE_USER]) {
$shares = \array_merge(
$shares,
$this->shareManager->getSharedWith($this->userSession->getUser()->getUID(), Share::SHARE_TYPE_USER, $node, -1, 0)
);
}
if (isset($requestedShareTypes[Share::SHARE_TYPE_GROUP]) && $requestedShareTypes[Share::SHARE_TYPE_GROUP]) {
$shares = \array_merge(
$shares,
$this->shareManager->getSharedWith($this->userSession->getUser()->getUID(), Share::SHARE_TYPE_GROUP, $node, -1, 0)
);
}
$shares = \array_filter($shares, function (IShare $share) {
return $share->getShareOwner() !== $this->userSession->getUser()->getUID();
});
$formatted = [];
foreach ($shares as $share) {
if (($stateFilter === null || $share->getState() === $stateFilter) &&
$this->canAccessShare($share)) {
try {
/**
* Check if the group to which the user belongs is not allowed
* to reshare
*/
if ($this->shareManager->sharingDisabledForUser($this->userSession->getUser()->getUID())) {
/**
* Now set the permission to 15. Which will allow not to reshare.
*/
$permissionEvaluated = $share->getPermissions() & ~Constants::PERMISSION_SHARE;
$share->setPermissions($permissionEvaluated);
}
$formatted[] = $this->formatShare($share, true);
} catch (NotFoundException $e) {
// Ignore this share
} catch (StorageNotAvailableException $e) {
// could happen if the share node points to a storage which isn't available
// TODO: This should go through an injected logger instance
\OCP\Util::logException('core', $e, \OCP\Util::ERROR);
}
}
}
if ($includeTags) {
$formatted = \OCA\Files\Helper::populateTagsForShares($formatted);
}
return new Result($formatted);
}
/**
* The getShares function.
* For the share type filter, if it isn't provided or is an empty string,
* all the share types will be returned, otherwise just the requested ones.
* Invalid share types will be ignored. If only invalid share types are requested,
* the function will return an empty list.
*
* @NoAdminRequired
* @NoCSRFRequired
*
* - Get shares by the current user
* - Get shares by the current user and reshares (?reshares=true)
* - Get shares with the current user (?shared_with_me=true)
* - Get shares for a specific path (?path=...)
* - Get all shares in a folder (?subfiles=true&path=..)
* - Filter by share type (?share_types=0,1,3,6)
*
* @return Result
* @throws LockedException
*/
public function getShares() {
if (!$this->shareManager->shareApiEnabled()) {
return new Result();
}
$supportedShareTypes = $this->getSupportedShareTypes();
$sharedWithMe = $this->request->getParam('shared_with_me', null);
$reshares = $this->request->getParam('reshares', null);
$subfiles = $this->request->getParam('subfiles');
$path = $this->request->getParam('path', null);
$includeTags = $this->request->getParam('include_tags', false);
$shareTypes = $this->request->getParam('share_types', '');
if ($shareTypes === '') {
$shareTypes = $supportedShareTypes;
} else {
$shareTypes = \explode(',', $shareTypes);
}
$requestedShareTypes = array_fill_keys($supportedShareTypes, false);
if ($this->shareManager->outgoingServer2ServerSharesAllowed() === false) {
// if outgoing remote shares aren't allowed, the remote share type can't be chosen
unset($requestedShareTypes[Share::SHARE_TYPE_REMOTE], $requestedShareTypes[Share::SHARE_TYPE_REMOTE_GROUP]);
}
foreach ($shareTypes as $shareType) {
if (isset($requestedShareTypes[$shareType])) {
$requestedShareTypes[$shareType] = true;
}
}
// requestedShareTypes now contains as keys the share type that has been requested
// (with "true" value), without duplicate elements, and only valid share types
if ($path !== null) {
$userFolder = $this->getCurrentUserFolder();
try {
$path = $userFolder->get($path);
$path->lock(ILockingProvider::LOCK_SHARED);
} catch (NotFoundException $e) {
return new Result(null, 404, $this->l->t('Wrong path, file/folder doesn\'t exist'));
} catch (LockedException $e) {
return new Result(null, 404, $this->l->t('Could not lock path'));
}
}
if ($sharedWithMe === 'true') {
$stateFilter = $this->request->getParam('state', Share::STATE_ACCEPTED);
if ($stateFilter === '') {
$stateFilter = Share::STATE_ACCEPTED;
} elseif ($stateFilter === 'all') {
$stateFilter = null; // which means all
} else {
$stateFilter = (int)$stateFilter;
}
$result = $this->getSharedWithMe($path, $includeTags, $requestedShareTypes, $stateFilter);
if ($path !== null) {
$path->unlock(ILockingProvider::LOCK_SHARED);
}
return $result;
}
if ($subfiles === 'true') {
if (!($path instanceof Folder)) {
if ($path !== null) {
$path->unlock(ILockingProvider::LOCK_SHARED);
}
return new Result(null, 400, $this->l->t('Not a directory'));
}
// we'll get only the folder contents, but not going further in
// this matches the previous behaviour of the deleted "getSharesInDir" method
$nodes = $path->getDirectoryListing();
} else {
$nodes = [$path];
}
if ($reshares === 'true') {
$reshares = true;
} else {
$reshares = false;
}
$shares = [];
foreach ($nodes as $node) {
foreach ($requestedShareTypes as $shareType => $requested) {
if (!$requested) {
continue;
}
$shares = \array_merge(
$shares,
$this->shareManager->getSharesBy($this->userSession->getUser()->getUID(), $shareType, $node, $reshares, -1, 0)
);
}
}
$formatted = [];
foreach ($shares as $share) {
try {
$formatted[] = $this->formatShare($share);
} catch (NotFoundException $e) {
//Ignore share
} catch (StorageNotAvailableException $e) {
// could happen if the share node points to a storage which isn't available
// TODO: This should go through an injected logger instance
\OCP\Util::logException('core', $e, \OCP\Util::ERROR);
}
}
if ($includeTags) {
$formatted = \OCA\Files\Helper::populateTagsForShares($formatted);
}
if ($path !== null) {
$path->unlock(ILockingProvider::LOCK_SHARED);
}
return new Result($formatted);
}
/**
* @NoAdminRequired
*
* @param int $id
* @return Result
* @throws LockedException
* @throws NotFoundException
*/
public function updateShare($id) {
if (!$this->shareManager->shareApiEnabled()) {
return new Result(null, 404, $this->l->t('Share API is disabled'));
}
try {
$share = $this->getShareById($id);
} catch (ShareNotFound $e) {
return new Result(null, 404, $this->l->t('Wrong share ID, share doesn\'t exist'));
}
$share->getNode()->lock(ILockingProvider::LOCK_SHARED);
if (!$this->canChangeShare($share)) {
$share->getNode()->unlock(ILockingProvider::LOCK_SHARED);
return new Result(null, 404, $this->l->t('Could not update share'));
}
$permissions = $this->getPermissionsFromRequest();
$password = $this->request->getParam('password', null);
$publicUpload = $this->request->getParam('publicUpload', null);
$expireDate = $this->request->getParam('expireDate', null);
$name = $this->request->getParam('name', null);
/*
* expirationdate, password and publicUpload only make sense for link shares
*/
if ($share->getShareType() === Share::SHARE_TYPE_LINK) {
if ($permissions === null && $password === null && $publicUpload === null && $expireDate === null && $name === null) {
$share->getNode()->unlock(ILockingProvider::LOCK_SHARED);
return new Result(null, 400, 'Wrong or no update parameter given');
}
$newPermissions = null;
if ($publicUpload === 'true') {
$newPermissions = Constants::PERMISSION_READ | Constants::PERMISSION_CREATE | Constants::PERMISSION_UPDATE | Constants::PERMISSION_DELETE;
} elseif ($publicUpload === 'false') {
$newPermissions = Constants::PERMISSION_READ;
}
if ($permissions !== null) {
$newPermissions = (int)$permissions;
}
if ($newPermissions !== null &&
$newPermissions !== Constants::PERMISSION_READ &&
$newPermissions !== Constants::PERMISSION_CREATE &&
$newPermissions !== (Constants::PERMISSION_READ | Constants::PERMISSION_UPDATE) &&
$newPermissions !== (Constants::PERMISSION_READ | Constants::PERMISSION_CREATE) &&
// legacy
$newPermissions !== (Constants::PERMISSION_READ | Constants::PERMISSION_CREATE | Constants::PERMISSION_UPDATE) &&
// correct
$newPermissions !== (Constants::PERMISSION_READ | Constants::PERMISSION_CREATE | Constants::PERMISSION_UPDATE | Constants::PERMISSION_DELETE)
) {
$share->getNode()->unlock(ILockingProvider::LOCK_SHARED);
return new Result(null, 400, $this->l->t('Can\'t change permissions for public share links'));
}
if (
// legacy
$newPermissions === (Constants::PERMISSION_READ | Constants::PERMISSION_CREATE | Constants::PERMISSION_UPDATE) ||
// correct
$newPermissions === (Constants::PERMISSION_READ | Constants::PERMISSION_CREATE | Constants::PERMISSION_UPDATE | Constants::PERMISSION_DELETE)
) {
if (!$this->shareManager->shareApiLinkAllowPublicUpload()) {
$share->getNode()->unlock(ILockingProvider::LOCK_SHARED);
return new Result(null, 403, $this->l->t('Public upload disabled by the administrator'));
}
if (!($share->getNode() instanceof Folder)) {
$share->getNode()->unlock(ILockingProvider::LOCK_SHARED);
return new Result(null, 400, $this->l->t('Public upload is only possible for publicly shared folders'));
}
}
// create (upload)
$includesCreatePermission = $newPermissions & Constants::PERMISSION_CREATE;
if ($includesCreatePermission) {
if (!$this->shareManager->shareApiLinkAllowPublicUpload()) {
$share->getNode()->unlock(ILockingProvider::LOCK_SHARED);
return new Result(null, 403, $this->l->t('Public upload disabled by the administrator'));
}
if (!($share->getNode() instanceof Folder)) {
$share->getNode()->unlock(ILockingProvider::LOCK_SHARED);
return new Result(null, 400, $this->l->t('Public upload is only possible for publicly shared folders'));
}
}
// set name only if passed as parameter, empty string is allowed
if ($name !== null) {
$share->setName($name);
}
if ($newPermissions !== null) {
$share->setPermissions($newPermissions);
}
if ($password === '') {
$share->setPassword(null);
} elseif ($password !== null) {
$share->setPassword($password);
}
} else {
// For other shares only permissions is valid.
if ($permissions !== null) {
$newPermissions = (int)$permissions;
$share->setPermissions($newPermissions);
}
}
if ($expireDate === '') {
$share->setExpirationDate(null);
} elseif ($expireDate !== null) {
try {
$expireDate = $this->parseDate($expireDate);
} catch (Exception $e) {
$share->getNode()->unlock(ILockingProvider::LOCK_SHARED);
return new Result(null, 400, $e->getMessage());
}
$share->setExpirationDate($expireDate);
}
// update attributes if provided
$newAttributes = $this->request->getParam('attributes', null);
if ($newAttributes !== null) {
$share = $this->setShareAttributes($share, $newAttributes);
}
try {
$share = $this->shareManager->updateShare($share);
} catch (GenericShareException $e) {
$code = $e->getCode() === 0 ? 403 : $e->getCode();
$share->getNode()->unlock(ILockingProvider::LOCK_SHARED);
return new Result(null, $code, $e->getHint());
} catch (Exception $e) {
$share->getNode()->unlock(ILockingProvider::LOCK_SHARED);
return new Result(null, 400, $e->getMessage());
}
$share->getNode()->unlock(ILockingProvider::LOCK_SHARED);
return new Result($this->formatShare($share));
}
/**
* @NoAdminRequired
*
* @param int $id
* @return Result
*/
public function acceptShare($id) {
return $this->updateShareState($id, Share::STATE_ACCEPTED);
}
/**
* @NoAdminRequired
*
* @param int $id
* @return Result
*/
public function declineShare($id) {
return $this->updateShareState($id, Share::STATE_REJECTED);
}
/**
* @param $id
* @param $state
* @return Result
* @throws LockedException
* @throws NotFoundException
*/