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<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
* @author Bjoern Schiessle <bjoern@schiessle.org>
* @author Björn Schießle <bjoern@schiessle.org>
* @author Daniel Calviño Sánchez <danxuliu@gmail.com>
* @author Jan-Christoph Borchardt <hey@jancborchardt.net>
* @author Joas Schilling <coding@schilljs.com>
* @author Julius Härtl <jus@bitgrid.net>
* @author Lukas Reschke <lukas@statuscode.ch>
* @author Maxence Lange <maxence@artificial-owl.com>
* @author Maxence Lange <maxence@nextcloud.com>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Pauli Järvinen <pauli.jarvinen@gmail.com>
* @author Robin Appelman <robin@icewind.nl>
* @author Roeland Jago Douma <roeland@famdouma.nl>
* @author Stephan MĂĽller <mail@stephanmueller.eu>
* @author Vincent Petry <pvince81@owncloud.com>
*
* @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 OC\Share20;
use OC\Cache\CappedMemoryCache;
use OC\Files\Mount\MoveableMount;
use OC\HintException;
use OC\Share20\Exception\ProviderException;
use OCP\Files\File;
use OCP\Files\Folder;
use OCP\Files\IRootFolder;
use OCP\Files\Mount\IMountManager;
use OCP\Files\Node;
use OCP\IConfig;
use OCP\IGroupManager;
use OCP\IL10N;
use OCP\ILogger;
use OCP\IURLGenerator;
use OCP\IUser;
use OCP\IUserManager;
use OCP\L10N\IFactory;
use OCP\Mail\IMailer;
use OCP\Security\IHasher;
use OCP\Security\ISecureRandom;
use OCP\Share\Exceptions\GenericShareException;
use OCP\Share\Exceptions\ShareNotFound;
use OCP\Share\IManager;
use OCP\Share\IProviderFactory;
use Symfony\Component\EventDispatcher\EventDispatcher;
use Symfony\Component\EventDispatcher\GenericEvent;
use OCP\Share\IShareProvider;
/**
* This class is the communication hub for all sharing related operations.
*/
class Manager implements IManager {
/** @var IProviderFactory */
private $factory;
/** @var ILogger */
private $logger;
/** @var IConfig */
private $config;
/** @var ISecureRandom */
private $secureRandom;
/** @var IHasher */
private $hasher;
/** @var IMountManager */
private $mountManager;
/** @var IGroupManager */
private $groupManager;
/** @var IL10N */
private $l;
/** @var IFactory */
private $l10nFactory;
/** @var IUserManager */
private $userManager;
/** @var IRootFolder */
private $rootFolder;
/** @var CappedMemoryCache */
private $sharingDisabledForUsersCache;
/** @var EventDispatcher */
private $eventDispatcher;
/** @var LegacyHooks */
private $legacyHooks;
/** @var IMailer */
private $mailer;
/** @var IURLGenerator */
private $urlGenerator;
/** @var \OC_Defaults */
private $defaults;
/**
* Manager constructor.
*
* @param ILogger $logger
* @param IConfig $config
* @param ISecureRandom $secureRandom
* @param IHasher $hasher
* @param IMountManager $mountManager
* @param IGroupManager $groupManager
* @param IL10N $l
* @param IFactory $l10nFactory
* @param IProviderFactory $factory
* @param IUserManager $userManager
* @param IRootFolder $rootFolder
* @param EventDispatcher $eventDispatcher
* @param IMailer $mailer
* @param IURLGenerator $urlGenerator
* @param \OC_Defaults $defaults
*/
public function __construct(
ILogger $logger,
IConfig $config,
ISecureRandom $secureRandom,
IHasher $hasher,
IMountManager $mountManager,
IGroupManager $groupManager,
IL10N $l,
IFactory $l10nFactory,
IProviderFactory $factory,
IUserManager $userManager,
IRootFolder $rootFolder,
EventDispatcher $eventDispatcher,
IMailer $mailer,
IURLGenerator $urlGenerator,
\OC_Defaults $defaults
) {
$this->logger = $logger;
$this->config = $config;
$this->secureRandom = $secureRandom;
$this->hasher = $hasher;
$this->mountManager = $mountManager;
$this->groupManager = $groupManager;
$this->l = $l;
$this->l10nFactory = $l10nFactory;
$this->factory = $factory;
$this->userManager = $userManager;
$this->rootFolder = $rootFolder;
$this->eventDispatcher = $eventDispatcher;
$this->sharingDisabledForUsersCache = new CappedMemoryCache();
$this->legacyHooks = new LegacyHooks($this->eventDispatcher);
$this->mailer = $mailer;
$this->urlGenerator = $urlGenerator;
$this->defaults = $defaults;
}
/**
* Convert from a full share id to a tuple (providerId, shareId)
*
* @param string $id
* @return string[]
*/
private function splitFullId($id) {
return explode(':', $id, 2);
}
/**
* Verify if a password meets all requirements
*
* @param string $password
* @throws \Exception
*/
protected function verifyPassword($password) {
if ($password === null) {
// No password is set, check if this is allowed.
if ($this->shareApiLinkEnforcePassword()) {
throw new \InvalidArgumentException('Passwords are enforced for link shares');
}
return;
}
// Let others verify the password
try {
$event = new GenericEvent($password);
$this->eventDispatcher->dispatch('OCP\PasswordPolicy::validate', $event);
} catch (HintException $e) {
throw new \Exception($e->getHint());
}
}
/**
* Check for generic requirements before creating a share
*
* @param \OCP\Share\IShare $share
* @throws \InvalidArgumentException
* @throws GenericShareException
*
* @suppress PhanUndeclaredClassMethod
*/
protected function generalCreateChecks(\OCP\Share\IShare $share) {
if ($share->getShareType() === \OCP\Share::SHARE_TYPE_USER) {
// We expect a valid user as sharedWith for user shares
if (!$this->userManager->userExists($share->getSharedWith())) {
throw new \InvalidArgumentException('SharedWith is not a valid user');
}
} else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_GROUP) {
// We expect a valid group as sharedWith for group shares
if (!$this->groupManager->groupExists($share->getSharedWith())) {
throw new \InvalidArgumentException('SharedWith is not a valid group');
}
} else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_LINK) {
if ($share->getSharedWith() !== null) {
throw new \InvalidArgumentException('SharedWith should be empty');
}
} else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_REMOTE) {
if ($share->getSharedWith() === null) {
throw new \InvalidArgumentException('SharedWith should not be empty');
}
} else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_EMAIL) {
if ($share->getSharedWith() === null) {
throw new \InvalidArgumentException('SharedWith should not be empty');
}
} else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_CIRCLE) {
$circle = \OCA\Circles\Api\v1\Circles::detailsCircle($share->getSharedWith());
if ($circle === null) {
throw new \InvalidArgumentException('SharedWith is not a valid circle');
}
} else {
// We can't handle other types yet
throw new \InvalidArgumentException('unknown share type');
}
// Verify the initiator of the share is set
if ($share->getSharedBy() === null) {
throw new \InvalidArgumentException('SharedBy should be set');
}
// Cannot share with yourself
if ($share->getShareType() === \OCP\Share::SHARE_TYPE_USER &&
$share->getSharedWith() === $share->getSharedBy()) {
throw new \InvalidArgumentException('Can’t share with yourself');
}
// The path should be set
if ($share->getNode() === null) {
throw new \InvalidArgumentException('Path should be set');
}
// And it should be a file or a folder
if (!($share->getNode() instanceof \OCP\Files\File) &&
!($share->getNode() instanceof \OCP\Files\Folder)) {
throw new \InvalidArgumentException('Path should be either a file or a folder');
}
// And you can't share your rootfolder
if ($this->userManager->userExists($share->getSharedBy())) {
$sharedPath = $this->rootFolder->getUserFolder($share->getSharedBy())->getPath();
} else {
$sharedPath = $this->rootFolder->getUserFolder($share->getShareOwner())->getPath();
}
if ($sharedPath === $share->getNode()->getPath()) {
throw new \InvalidArgumentException('You can’t share your root folder');
}
// Check if we actually have share permissions
if (!$share->getNode()->isShareable()) {
$message_t = $this->l->t('You are not allowed to share %s', [$share->getNode()->getPath()]);
throw new GenericShareException($message_t, $message_t, 404);
}
// Permissions should be set
if ($share->getPermissions() === null) {
throw new \InvalidArgumentException('A share requires permissions');
}
/*
* Quick fix for #23536
* Non moveable mount points do not have update and delete permissions
* while we 'most likely' do have that on the storage.
*/
$permissions = $share->getNode()->getPermissions();
$mount = $share->getNode()->getMountPoint();
if (!($mount instanceof MoveableMount)) {
$permissions |= \OCP\Constants::PERMISSION_DELETE | \OCP\Constants::PERMISSION_UPDATE;
}
// Check that we do not share with more permissions than we have
if ($share->getPermissions() & ~$permissions) {
$message_t = $this->l->t('Can’t increase permissions of %s', [$share->getNode()->getPath()]);
throw new GenericShareException($message_t, $message_t, 404);
}
// Check that read permissions are always set
// Link shares are allowed to have no read permissions to allow upload to hidden folders
$noReadPermissionRequired = $share->getShareType() === \OCP\Share::SHARE_TYPE_LINK
|| $share->getShareType() === \OCP\Share::SHARE_TYPE_EMAIL;
if (!$noReadPermissionRequired &&
($share->getPermissions() & \OCP\Constants::PERMISSION_READ) === 0) {
throw new \InvalidArgumentException('Shares need at least read permissions');
}
if ($share->getNode() instanceof \OCP\Files\File) {
if ($share->getPermissions() & \OCP\Constants::PERMISSION_DELETE) {
$message_t = $this->l->t('Files can’t be shared with delete permissions');
throw new GenericShareException($message_t);
}
if ($share->getPermissions() & \OCP\Constants::PERMISSION_CREATE) {
$message_t = $this->l->t('Files can’t be shared with create permissions');
throw new GenericShareException($message_t);
}
}
}
/**
* Validate if the expiration date fits the system settings
*
* @param \OCP\Share\IShare $share The share to validate the expiration date of
* @return \OCP\Share\IShare The modified share object
* @throws GenericShareException
* @throws \InvalidArgumentException
* @throws \Exception
*/
protected function validateExpirationDate(\OCP\Share\IShare $share) {
$expirationDate = $share->getExpirationDate();
if ($expirationDate !== null) {
//Make sure the expiration date is a date
$expirationDate->setTime(0, 0, 0);
$date = new \DateTime();
$date->setTime(0, 0, 0);
if ($date >= $expirationDate) {
$message = $this->l->t('Expiration date is in the past');
throw new GenericShareException($message, $message, 404);
}
}
// If expiredate is empty set a default one if there is a default
$fullId = null;
try {
$fullId = $share->getFullId();
} catch (\UnexpectedValueException $e) {
// This is a new share
}
if ($fullId === null && $expirationDate === null && $this->shareApiLinkDefaultExpireDate()) {
$expirationDate = new \DateTime();
$expirationDate->setTime(0,0,0);
$expirationDate->add(new \DateInterval('P'.$this->shareApiLinkDefaultExpireDays().'D'));
}
// If we enforce the expiration date check that is does not exceed
if ($this->shareApiLinkDefaultExpireDateEnforced()) {
if ($expirationDate === null) {
throw new \InvalidArgumentException('Expiration date is enforced');
}
$date = new \DateTime();
$date->setTime(0, 0, 0);
$date->add(new \DateInterval('P' . $this->shareApiLinkDefaultExpireDays() . 'D'));
if ($date < $expirationDate) {
$message = $this->l->t('Can’t set expiration date more than %s days in the future', [$this->shareApiLinkDefaultExpireDays()]);
throw new GenericShareException($message, $message, 404);
}
}
$accepted = true;
$message = '';
\OCP\Util::emitHook('\OC\Share', 'verifyExpirationDate', [
'expirationDate' => &$expirationDate,
'accepted' => &$accepted,
'message' => &$message,
'passwordSet' => $share->getPassword() !== null,
]);
if (!$accepted) {
throw new \Exception($message);
}
$share->setExpirationDate($expirationDate);
return $share;
}
/**
* Check for pre share requirements for user shares
*
* @param \OCP\Share\IShare $share
* @throws \Exception
*/
protected function userCreateChecks(\OCP\Share\IShare $share) {
// Check if we can share with group members only
if ($this->shareWithGroupMembersOnly()) {
$sharedBy = $this->userManager->get($share->getSharedBy());
$sharedWith = $this->userManager->get($share->getSharedWith());
// Verify we can share with this user
$groups = array_intersect(
$this->groupManager->getUserGroupIds($sharedBy),
$this->groupManager->getUserGroupIds($sharedWith)
);
if (empty($groups)) {
throw new \Exception('Sharing is only allowed with group members');
}
}
/*
* TODO: Could be costly, fix
*
* Also this is not what we want in the future.. then we want to squash identical shares.
*/
$provider = $this->factory->getProviderForType(\OCP\Share::SHARE_TYPE_USER);
$existingShares = $provider->getSharesByPath($share->getNode());
foreach($existingShares as $existingShare) {
// Ignore if it is the same share
try {
if ($existingShare->getFullId() === $share->getFullId()) {
continue;
}
} catch (\UnexpectedValueException $e) {
//Shares are not identical
}
// Identical share already existst
if ($existingShare->getSharedWith() === $share->getSharedWith()) {
throw new \Exception('Path is already shared with this user');
}
// The share is already shared with this user via a group share
if ($existingShare->getShareType() === \OCP\Share::SHARE_TYPE_GROUP) {
$group = $this->groupManager->get($existingShare->getSharedWith());
if (!is_null($group)) {
$user = $this->userManager->get($share->getSharedWith());
if ($group->inGroup($user) && $existingShare->getShareOwner() !== $share->getShareOwner()) {
throw new \Exception('Path is already shared with this user');
}
}
}
}
}
/**
* Check for pre share requirements for group shares
*
* @param \OCP\Share\IShare $share
* @throws \Exception
*/
protected function groupCreateChecks(\OCP\Share\IShare $share) {
// Verify group shares are allowed
if (!$this->allowGroupSharing()) {
throw new \Exception('Group sharing is now allowed');
}
// Verify if the user can share with this group
if ($this->shareWithGroupMembersOnly()) {
$sharedBy = $this->userManager->get($share->getSharedBy());
$sharedWith = $this->groupManager->get($share->getSharedWith());
if (is_null($sharedWith) || !$sharedWith->inGroup($sharedBy)) {
throw new \Exception('Sharing is only allowed within your own groups');
}
}
/*
* TODO: Could be costly, fix
*
* Also this is not what we want in the future.. then we want to squash identical shares.
*/
$provider = $this->factory->getProviderForType(\OCP\Share::SHARE_TYPE_GROUP);
$existingShares = $provider->getSharesByPath($share->getNode());
foreach($existingShares as $existingShare) {
try {
if ($existingShare->getFullId() === $share->getFullId()) {
continue;
}
} catch (\UnexpectedValueException $e) {
//It is a new share so just continue
}
if ($existingShare->getSharedWith() === $share->getSharedWith()) {
throw new \Exception('Path is already shared with this group');
}
}
}
/**
* Check for pre share requirements for link shares
*
* @param \OCP\Share\IShare $share
* @throws \Exception
*/
protected function linkCreateChecks(\OCP\Share\IShare $share) {
// Are link shares allowed?
if (!$this->shareApiAllowLinks()) {
throw new \Exception('Link sharing is not allowed');
}
// Link shares by definition can't have share permissions
if ($share->getPermissions() & \OCP\Constants::PERMISSION_SHARE) {
throw new \InvalidArgumentException('Link shares can’t have reshare permissions');
}
// Check if public upload is allowed
if (!$this->shareApiLinkAllowPublicUpload() &&
($share->getPermissions() & (\OCP\Constants::PERMISSION_CREATE | \OCP\Constants::PERMISSION_UPDATE | \OCP\Constants::PERMISSION_DELETE))) {
throw new \InvalidArgumentException('Public upload is not allowed');
}
}
/**
* To make sure we don't get invisible link shares we set the parent
* of a link if it is a reshare. This is a quick word around
* until we can properly display multiple link shares in the UI
*
* See: https://github.com/owncloud/core/issues/22295
*
* FIXME: Remove once multiple link shares can be properly displayed
*
* @param \OCP\Share\IShare $share
*/
protected function setLinkParent(\OCP\Share\IShare $share) {
// No sense in checking if the method is not there.
if (method_exists($share, 'setParent')) {
$storage = $share->getNode()->getStorage();
if ($storage->instanceOfStorage('\OCA\Files_Sharing\ISharedStorage')) {
/** @var \OCA\Files_Sharing\SharedStorage $storage */
$share->setParent($storage->getShareId());
}
};
}
/**
* @param File|Folder $path
*/
protected function pathCreateChecks($path) {
// Make sure that we do not share a path that contains a shared mountpoint
if ($path instanceof \OCP\Files\Folder) {
$mounts = $this->mountManager->findIn($path->getPath());
foreach($mounts as $mount) {
if ($mount->getStorage()->instanceOfStorage('\OCA\Files_Sharing\ISharedStorage')) {
throw new \InvalidArgumentException('Path contains files shared with you');
}
}
}
}
/**
* Check if the user that is sharing can actually share
*
* @param \OCP\Share\IShare $share
* @throws \Exception
*/
protected function canShare(\OCP\Share\IShare $share) {
if (!$this->shareApiEnabled()) {
throw new \Exception('Sharing is disabled');
}
if ($this->sharingDisabledForUser($share->getSharedBy())) {
throw new \Exception('Sharing is disabled for you');
}
}
/**
* Share a path
*
* @param \OCP\Share\IShare $share
* @return Share The share object
* @throws \Exception
*
* TODO: handle link share permissions or check them
*/
public function createShare(\OCP\Share\IShare $share) {
$this->canShare($share);
$this->generalCreateChecks($share);
// Verify if there are any issues with the path
$this->pathCreateChecks($share->getNode());
/*
* On creation of a share the owner is always the owner of the path
* Except for mounted federated shares.
*/
$storage = $share->getNode()->getStorage();
if ($storage->instanceOfStorage('OCA\Files_Sharing\External\Storage')) {
$parent = $share->getNode()->getParent();
while($parent->getStorage()->instanceOfStorage('OCA\Files_Sharing\External\Storage')) {
$parent = $parent->getParent();
}
$share->setShareOwner($parent->getOwner()->getUID());
} else {
$share->setShareOwner($share->getNode()->getOwner()->getUID());
}
//Verify share type
if ($share->getShareType() === \OCP\Share::SHARE_TYPE_USER) {
$this->userCreateChecks($share);
} else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_GROUP) {
$this->groupCreateChecks($share);
} else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_LINK) {
$this->linkCreateChecks($share);
$this->setLinkParent($share);
/*
* For now ignore a set token.
*/
$share->setToken(
$this->secureRandom->generate(
\OC\Share\Constants::TOKEN_LENGTH,
\OCP\Security\ISecureRandom::CHAR_HUMAN_READABLE
)
);
//Verify the expiration date
$this->validateExpirationDate($share);
//Verify the password
$this->verifyPassword($share->getPassword());
// If a password is set. Hash it!
if ($share->getPassword() !== null) {
$share->setPassword($this->hasher->hash($share->getPassword()));
}
} else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_EMAIL) {
$share->setToken(
$this->secureRandom->generate(
\OC\Share\Constants::TOKEN_LENGTH,
\OCP\Security\ISecureRandom::CHAR_HUMAN_READABLE
)
);
}
// Cannot share with the owner
if ($share->getShareType() === \OCP\Share::SHARE_TYPE_USER &&
$share->getSharedWith() === $share->getShareOwner()) {
throw new \InvalidArgumentException('Can’t share with the share owner');
}
// Generate the target
$target = $this->config->getSystemValue('share_folder', '/') .'/'. $share->getNode()->getName();
$target = \OC\Files\Filesystem::normalizePath($target);
$share->setTarget($target);
// Pre share event
$event = new GenericEvent($share);
$a = $this->eventDispatcher->dispatch('OCP\Share::preShare', $event);
if ($event->isPropagationStopped() && $event->hasArgument('error')) {
throw new \Exception($event->getArgument('error'));
}
$oldShare = $share;
$provider = $this->factory->getProviderForType($share->getShareType());
$share = $provider->create($share);
//reuse the node we already have
$share->setNode($oldShare->getNode());
// Post share event
$event = new GenericEvent($share);
$this->eventDispatcher->dispatch('OCP\Share::postShare', $event);
if ($share->getShareType() === \OCP\Share::SHARE_TYPE_USER) {
$mailSend = $share->getMailSend();
if($mailSend === true) {
$user = $this->userManager->get($share->getSharedWith());
if ($user !== null) {
$emailAddress = $user->getEMailAddress();
if ($emailAddress !== null && $emailAddress !== '') {
$userLang = $this->config->getUserValue($share->getSharedWith(), 'core', 'lang', null);
$l = $this->l10nFactory->get('lib', $userLang);
$this->sendMailNotification(
$l,
$share->getNode()->getName(),
$this->urlGenerator->linkToRouteAbsolute('files.viewcontroller.showFile', ['fileid' => $share->getNode()->getId()]),
$share->getSharedBy(),
$emailAddress,
$share->getExpirationDate()
);
$this->logger->debug('Send share notification to ' . $emailAddress . ' for share with ID ' . $share->getId(), ['app' => 'share']);
} else {
$this->logger->debug('Share notification not send to ' . $share->getSharedWith() . ' because email address is not set.', ['app' => 'share']);
}
} else {
$this->logger->debug('Share notification not send to ' . $share->getSharedWith() . ' because user could not be found.', ['app' => 'share']);
}
} else {
$this->logger->debug('Share notification not send because mailsend is false.', ['app' => 'share']);
}
}
return $share;
}
/**
* @param IL10N $l Language of the recipient
* @param string $filename file/folder name
* @param string $link link to the file/folder
* @param string $initiator user ID of share sender
* @param string $shareWith email address of share receiver
* @param \DateTime|null $expiration
* @throws \Exception If mail couldn't be sent
*/
protected function sendMailNotification(IL10N $l,
$filename,
$link,
$initiator,
$shareWith,
\DateTime $expiration = null) {
$initiatorUser = $this->userManager->get($initiator);
$initiatorDisplayName = ($initiatorUser instanceof IUser) ? $initiatorUser->getDisplayName() : $initiator;
$message = $this->mailer->createMessage();
$emailTemplate = $this->mailer->createEMailTemplate('files_sharing.RecipientNotification', [
'filename' => $filename,
'link' => $link,
'initiator' => $initiatorDisplayName,
'expiration' => $expiration,
'shareWith' => $shareWith,
]);
$emailTemplate->setSubject($l->t('%s shared »%s« with you', array($initiatorDisplayName, $filename)));
$emailTemplate->addHeader();
$emailTemplate->addHeading($l->t('%s shared »%s« with you', [$initiatorDisplayName, $filename]), false);
$text = $l->t('%s shared »%s« with you.', [$initiatorDisplayName, $filename]);
$emailTemplate->addBodyText(
$text . ' ' . $l->t('Click the button below to open it.'),
$text
);
$emailTemplate->addBodyButton(
$l->t('Open »%s«', [$filename]),
$link
);
$message->setTo([$shareWith]);
// The "From" contains the sharers name
$instanceName = $this->defaults->getName();
$senderName = $l->t(
'%s via %s',
[
$initiatorDisplayName,
$instanceName
]
);
$message->setFrom([\OCP\Util::getDefaultEmailAddress($instanceName) => $senderName]);
// The "Reply-To" is set to the sharer if an mail address is configured
// also the default footer contains a "Do not reply" which needs to be adjusted.
$initiatorEmail = $initiatorUser->getEMailAddress();
if($initiatorEmail !== null) {
$message->setReplyTo([$initiatorEmail => $initiatorDisplayName]);
$emailTemplate->addFooter($instanceName . ($this->defaults->getSlogan() !== '' ? ' - ' . $this->defaults->getSlogan() : ''));
} else {
$emailTemplate->addFooter();
}
$message->useTemplate($emailTemplate);
$this->mailer->send($message);
}
/**
* Update a share
*
* @param \OCP\Share\IShare $share
* @return \OCP\Share\IShare The share object
* @throws \InvalidArgumentException
*/
public function updateShare(\OCP\Share\IShare $share) {
$expirationDateUpdated = false;
$this->canShare($share);
try {
$originalShare = $this->getShareById($share->getFullId());
} catch (\UnexpectedValueException $e) {
throw new \InvalidArgumentException('Share does not have a full id');
}
// We can't change the share type!
if ($share->getShareType() !== $originalShare->getShareType()) {
throw new \InvalidArgumentException('Can’t change share type');
}
// We can only change the recipient on user shares
if ($share->getSharedWith() !== $originalShare->getSharedWith() &&
$share->getShareType() !== \OCP\Share::SHARE_TYPE_USER) {
throw new \InvalidArgumentException('Can only update recipient on user shares');
}
// Cannot share with the owner
if ($share->getShareType() === \OCP\Share::SHARE_TYPE_USER &&
$share->getSharedWith() === $share->getShareOwner()) {
throw new \InvalidArgumentException('Can’t share with the share owner');
}
$this->generalCreateChecks($share);
if ($share->getShareType() === \OCP\Share::SHARE_TYPE_USER) {
$this->userCreateChecks($share);
} else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_GROUP) {
$this->groupCreateChecks($share);
} else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_LINK) {
$this->linkCreateChecks($share);
$this->updateSharePasswordIfNeeded($share, $originalShare);
if ($share->getExpirationDate() != $originalShare->getExpirationDate()) {
//Verify the expiration date
$this->validateExpirationDate($share);
$expirationDateUpdated = true;
}
} else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_EMAIL) {
$plainTextPassword = $share->getPassword();
if (!$this->updateSharePasswordIfNeeded($share, $originalShare)) {
$plainTextPassword = null;
}
}
$this->pathCreateChecks($share->getNode());
// Now update the share!
$provider = $this->factory->getProviderForType($share->getShareType());
if ($share->getShareType() === \OCP\Share::SHARE_TYPE_EMAIL) {
$share = $provider->update($share, $plainTextPassword);
} else {
$share = $provider->update($share);
}
if ($expirationDateUpdated === true) {
\OC_Hook::emit('OCP\Share', 'post_set_expiration_date', [
'itemType' => $share->getNode() instanceof \OCP\Files\File ? 'file' : 'folder',
'itemSource' => $share->getNode()->getId(),
'date' => $share->getExpirationDate(),
'uidOwner' => $share->getSharedBy(),
]);
}
if ($share->getPassword() !== $originalShare->getPassword()) {
\OC_Hook::emit('OCP\Share', 'post_update_password', [
'itemType' => $share->getNode() instanceof \OCP\Files\File ? 'file' : 'folder',
'itemSource' => $share->getNode()->getId(),
'uidOwner' => $share->getSharedBy(),
'token' => $share->getToken(),
'disabled' => is_null($share->getPassword()),
]);
}
if ($share->getPermissions() !== $originalShare->getPermissions()) {
if ($this->userManager->userExists($share->getShareOwner())) {
$userFolder = $this->rootFolder->getUserFolder($share->getShareOwner());
} else {
$userFolder = $this->rootFolder->getUserFolder($share->getSharedBy());
}
\OC_Hook::emit('OCP\Share', 'post_update_permissions', array(
'itemType' => $share->getNode() instanceof \OCP\Files\File ? 'file' : 'folder',
'itemSource' => $share->getNode()->getId(),
'shareType' => $share->getShareType(),
'shareWith' => $share->getSharedWith(),
'uidOwner' => $share->getSharedBy(),
'permissions' => $share->getPermissions(),
'path' => $userFolder->getRelativePath($share->getNode()->getPath()),
));
}
return $share;
}
/**
* Updates the password of the given share if it is not the same as the
* password of the original share.
*
* @param \OCP\Share\IShare $share the share to update its password.
* @param \OCP\Share\IShare $originalShare the original share to compare its
* password with.
* @return boolean whether the password was updated or not.
*/
private function updateSharePasswordIfNeeded(\OCP\Share\IShare $share, \OCP\Share\IShare $originalShare) {
// Password updated.
if ($share->getPassword() !== $originalShare->getPassword()) {
//Verify the password
$this->verifyPassword($share->getPassword());
// If a password is set. Hash it!
if ($share->getPassword() !== null) {
$share->setPassword($this->hasher->hash($share->getPassword()));
return true;
}
}
return false;
}
/**
* Delete all the children of this share
* FIXME: remove once https://github.com/owncloud/core/pull/21660 is in
*
* @param \OCP\Share\IShare $share
* @return \OCP\Share\IShare[] List of deleted shares
*/
protected function deleteChildren(\OCP\Share\IShare $share) {
$deletedShares = [];
$provider = $this->factory->getProviderForType($share->getShareType());
foreach ($provider->getChildren($share) as $child) {
$deletedChildren = $this->deleteChildren($child);
$deletedShares = array_merge($deletedShares, $deletedChildren);
$provider->delete($child);
$deletedShares[] = $child;
}
return $deletedShares;
}
/**
* Delete a share
*
* @param \OCP\Share\IShare $share
* @throws ShareNotFound
* @throws \InvalidArgumentException
*/
public function deleteShare(\OCP\Share\IShare $share) {
try {
$share->getFullId();
} catch (\UnexpectedValueException $e) {
throw new \InvalidArgumentException('Share does not have a full id');
}
$event = new GenericEvent($share);
$this->eventDispatcher->dispatch('OCP\Share::preUnshare', $event);
// Get all children and delete them as well
$deletedShares = $this->deleteChildren($share);
// Do the actual delete
$provider = $this->factory->getProviderForType($share->getShareType());
$provider->delete($share);
// All the deleted shares caused by this delete
$deletedShares[] = $share;
// Emit post hook
$event->setArgument('deletedShares', $deletedShares);
$this->eventDispatcher->dispatch('OCP\Share::postUnshare', $event);
}
/**
* Unshare a file as the recipient.
* This can be different from a regular delete for example when one of
* the users in a groups deletes that share. But the provider should
* handle this.
*
* @param \OCP\Share\IShare $share
* @param string $recipientId
*/
public function deleteFromSelf(\OCP\Share\IShare $share, $recipientId) {
list($providerId, ) = $this->splitFullId($share->getFullId());
$provider = $this->factory->getProvider($providerId);
$provider->deleteFromSelf($share, $recipientId);
$event = new GenericEvent($share);
$this->eventDispatcher->dispatch('OCP\Share::postUnshareFromSelf', $event);
}
/**
* @inheritdoc
*/
public function moveShare(\OCP\Share\IShare $share, $recipientId) {
if ($share->getShareType() === \OCP\Share::SHARE_TYPE_LINK) {
throw new \InvalidArgumentException('Can’t change target of link share');
}
if ($share->getShareType() === \OCP\Share::SHARE_TYPE_USER && $share->getSharedWith() !== $recipientId) {
throw new \InvalidArgumentException('Invalid recipient');
}
if ($share->getShareType() === \OCP\Share::SHARE_TYPE_GROUP) {
$sharedWith = $this->groupManager->get($share->getSharedWith());
if (is_null($sharedWith)) {
throw new \InvalidArgumentException('Group "' . $share->getSharedWith() . '" does not exist');
}
$recipient = $this->userManager->get($recipientId);
if (!$sharedWith->inGroup($recipient)) {
throw new \InvalidArgumentException('Invalid recipient');
}
}
list($providerId, ) = $this->splitFullId($share->getFullId());
$provider = $this->factory->getProvider($providerId);
$provider->move($share, $recipientId);
}
public function getSharesInFolder($userId, Folder $node, $reshares = false) {
$providers = $this->factory->getAllProviders();
return array_reduce($providers, function($shares, IShareProvider $provider) use ($userId, $node, $reshares) {
$newShares = $provider->getSharesInFolder($userId, $node, $reshares);
foreach ($newShares as $fid => $data) {
if (!isset($shares[$fid])) {
$shares[$fid] = [];
}
$shares[$fid] = array_merge($shares[$fid], $data);
}
return $shares;
}, []);
}
/**
* @inheritdoc
*/
public function getSharesBy($userId, $shareType, $path = null, $reshares = false, $limit = 50, $offset = 0) {
if ($path !== null &&
!($path instanceof \OCP\Files\File) &&
!($path instanceof \OCP\Files\Folder)) {
throw new \InvalidArgumentException('invalid path');
}
try {
$provider = $this->factory->getProviderForType($shareType);
} catch (ProviderException $e) {
return [];
}
$shares = $provider->getSharesBy($userId, $shareType, $path, $reshares, $limit, $offset);
/*
* Work around so we don't return expired shares but still follow
* proper pagination.
*/
$shares2 = [];
while(true) {
$added = 0;
foreach ($shares as $share) {
try {
$this->checkExpireDate($share);
} catch (ShareNotFound $e) {
//Ignore since this basically means the share is deleted
continue;
}
$added++;
$shares2[] = $share;
if (count($shares2) === $limit) {
break;
}
}
// If we did not fetch more shares than the limit then there are no more shares
if (count($shares) < $limit) {
break;
}
if (count($shares2) === $limit) {
break;
}
// If there was no limit on the select we are done
if ($limit === -1) {
break;
}
$offset += $added;
// Fetch again $limit shares
$shares = $provider->getSharesBy($userId, $shareType, $path, $reshares, $limit, $offset);
// No more shares means we are done
if (empty($shares)) {
break;
}
}
$shares = $shares2;
return $shares;
}
/**
* @inheritdoc
*/
public function getSharedWith($userId, $shareType, $node = null, $limit = 50, $offset = 0) {
try {
$provider = $this->factory->getProviderForType($shareType);
} catch (ProviderException $e) {
return [];
}
$shares = $provider->getSharedWith($userId, $shareType, $node, $limit, $offset);
// remove all shares which are already expired
foreach ($shares as $key => $share) {
try {
$this->checkExpireDate($share);
} catch (ShareNotFound $e) {
unset($shares[$key]);
}
}
return $shares;
}
/**
* @inheritdoc
*/
public function getShareById($id, $recipient = null) {
if ($id === null) {
throw new ShareNotFound();
}
list($providerId, $id) = $this->splitFullId($id);
try {
$provider = $this->factory->getProvider($providerId);
} catch (ProviderException $e) {
throw new ShareNotFound();
}
$share = $provider->getShareById($id, $recipient);
$this->checkExpireDate($share);
return $share;
}
/**
* Get all the shares for a given path
*
* @param \OCP\Files\Node $path
* @param int $page
* @param int $perPage
*
* @return Share[]
*/
public function getSharesByPath(\OCP\Files\Node $path, $page=0, $perPage=50) {
return [];
}
/**
* Get the share by token possible with password
*
* @param string $token
* @return Share
*
* @throws ShareNotFound
*/
public function getShareByToken($token) {
$share = null;
try {
if($this->shareApiAllowLinks()) {
$provider = $this->factory->getProviderForType(\OCP\Share::SHARE_TYPE_LINK);
$share = $provider->getShareByToken($token);
}
} catch (ProviderException $e) {
} catch (ShareNotFound $e) {
}
// If it is not a link share try to fetch a federated share by token
if ($share === null) {
try {
$provider = $this->factory->getProviderForType(\OCP\Share::SHARE_TYPE_REMOTE);
$share = $provider->getShareByToken($token);
} catch (ProviderException $e) {
} catch (ShareNotFound $e) {
}
}
// If it is not a link share try to fetch a mail share by token
if ($share === null && $this->shareProviderExists(\OCP\Share::SHARE_TYPE_EMAIL)) {
try {
$provider = $this->factory->getProviderForType(\OCP\Share::SHARE_TYPE_EMAIL);
$share = $provider->getShareByToken($token);
} catch (ProviderException $e) {
} catch (ShareNotFound $e) {
}
}
if ($share === null && $this->shareProviderExists(\OCP\Share::SHARE_TYPE_CIRCLE)) {
try {
$provider = $this->factory->getProviderForType(\OCP\Share::SHARE_TYPE_CIRCLE);
$share = $provider->getShareByToken($token);
} catch (ProviderException $e) {
} catch (ShareNotFound $e) {
}
}
if ($share === null) {
throw new ShareNotFound($this->l->t('The requested share does not exist anymore'));
}
$this->checkExpireDate($share);
/*
* Reduce the permissions for link shares if public upload is not enabled
*/
if ($share->getShareType() === \OCP\Share::SHARE_TYPE_LINK &&
!$this->shareApiLinkAllowPublicUpload()) {
$share->setPermissions($share->getPermissions() & ~(\OCP\Constants::PERMISSION_CREATE | \OCP\Constants::PERMISSION_UPDATE));
}
return $share;
}
protected function checkExpireDate($share) {
if ($share->getExpirationDate() !== null &&
$share->getExpirationDate() <= new \DateTime()) {
$this->deleteShare($share);
throw new ShareNotFound($this->l->t('The requested share does not exist anymore'));
}
}
/**
* Verify the password of a public share
*
* @param \OCP\Share\IShare $share
* @param string $password
* @return bool
*/
public function checkPassword(\OCP\Share\IShare $share, $password) {
$passwordProtected = $share->getShareType() !== \OCP\Share::SHARE_TYPE_LINK
|| $share->getShareType() !== \OCP\Share::SHARE_TYPE_EMAIL;
if (!$passwordProtected) {
//TODO maybe exception?
return false;
}
if ($password === null || $share->getPassword() === null) {
return false;
}
$newHash = '';
if (!$this->hasher->verify($password, $share->getPassword(), $newHash)) {
return false;
}
if (!empty($newHash)) {
$share->setPassword($newHash);
$provider = $this->factory->getProviderForType($share->getShareType());
$provider->update($share);
}
return true;
}
/**
* @inheritdoc
*/
public function userDeleted($uid) {
$types = [\OCP\Share::SHARE_TYPE_USER, \OCP\Share::SHARE_TYPE_GROUP, \OCP\Share::SHARE_TYPE_LINK, \OCP\Share::SHARE_TYPE_REMOTE, \OCP\Share::SHARE_TYPE_EMAIL];
foreach ($types as $type) {
try {
$provider = $this->factory->getProviderForType($type);
} catch (ProviderException $e) {
continue;
}
$provider->userDeleted($uid, $type);
}
}
/**
* @inheritdoc
*/
public function groupDeleted($gid) {
$provider = $this->factory->getProviderForType(\OCP\Share::SHARE_TYPE_GROUP);
$provider->groupDeleted($gid);
}
/**
* @inheritdoc
*/
public function userDeletedFromGroup($uid, $gid) {
$provider = $this->factory->getProviderForType(\OCP\Share::SHARE_TYPE_GROUP);
$provider->userDeletedFromGroup($uid, $gid);
}
/**
* Get access list to a path. This means
* all the users that can access a given path.
*
* Consider:
* -root
* |-folder1 (23)
* |-folder2 (32)
* |-fileA (42)
*
* fileA is shared with user1 and user1@server1
* folder2 is shared with group2 (user4 is a member of group2)
* folder1 is shared with user2 (renamed to "folder (1)") and user2@server2
*
* Then the access list to '/folder1/folder2/fileA' with $currentAccess is:
* [
* users => [
* 'user1' => ['node_id' => 42, 'node_path' => '/fileA'],
* 'user4' => ['node_id' => 32, 'node_path' => '/folder2'],
* 'user2' => ['node_id' => 23, 'node_path' => '/folder (1)'],
* ],
* remote => [
* 'user1@server1' => ['node_id' => 42, 'token' => 'SeCr3t'],
* 'user2@server2' => ['node_id' => 23, 'token' => 'FooBaR'],
* ],
* public => bool
* mail => bool
* ]
*
* The access list to '/folder1/folder2/fileA' **without** $currentAccess is:
* [
* users => ['user1', 'user2', 'user4'],
* remote => bool,
* public => bool
* mail => bool
* ]
*
* This is required for encryption/activity
*
* @param \OCP\Files\Node $path
* @param bool $recursive Should we check all parent folders as well
* @param bool $currentAccess Ensure the recipient has access to the file (e.g. did not unshare it)
* @return array
*/
public function getAccessList(\OCP\Files\Node $path, $recursive = true, $currentAccess = false) {
$owner = $path->getOwner()->getUID();
if ($currentAccess) {
$al = ['users' => [], 'remote' => [], 'public' => false];
} else {
$al = ['users' => [], 'remote' => false, 'public' => false];
}
if (!$this->userManager->userExists($owner)) {
return $al;
}
//Get node for the owner
$userFolder = $this->rootFolder->getUserFolder($owner);
if ($path->getId() !== $userFolder->getId() && !$userFolder->isSubNode($path)) {
$path = $userFolder->getById($path->getId())[0];
}
$providers = $this->factory->getAllProviders();
/** @var Node[] $nodes */
$nodes = [];
if ($currentAccess) {
$ownerPath = $path->getPath();
$ownerPath = explode('/', $ownerPath, 4);
if (count($ownerPath) < 4) {
$ownerPath = '';
} else {
$ownerPath = $ownerPath[3];
}
$al['users'][$owner] = [
'node_id' => $path->getId(),
'node_path' => '/' . $ownerPath,
];
} else {
$al['users'][] = $owner;
}
// Collect all the shares
while ($path->getPath() !== $userFolder->getPath()) {
$nodes[] = $path;
if (!$recursive) {
break;
}
$path = $path->getParent();
}
foreach ($providers as $provider) {
$tmp = $provider->getAccessList($nodes, $currentAccess);
foreach ($tmp as $k => $v) {
if (isset($al[$k])) {
if (is_array($al[$k])) {
if ($currentAccess) {
$al[$k] += $v;
} else {
$al[$k] = array_merge($al[$k], $v);
$al[$k] = array_unique($al[$k]);
$al[$k] = array_values($al[$k]);
}
} else {
$al[$k] = $al[$k] || $v;
}
} else {
$al[$k] = $v;
}
}
}
return $al;
}
/**
* Create a new share
* @return \OCP\Share\IShare
*/
public function newShare() {
return new \OC\Share20\Share($this->rootFolder, $this->userManager);
}
/**
* Is the share API enabled
*
* @return bool
*/
public function shareApiEnabled() {
return $this->config->getAppValue('core', 'shareapi_enabled', 'yes') === 'yes';
}
/**
* Is public link sharing enabled
*
* @return bool
*/
public function shareApiAllowLinks() {
return $this->config->getAppValue('core', 'shareapi_allow_links', 'yes') === 'yes';
}
/**
* Is password on public link requires
*
* @return bool
*/
public function shareApiLinkEnforcePassword() {
return $this->config->getAppValue('core', 'shareapi_enforce_links_password', 'no') === 'yes';
}
/**
* Is default expire date enabled
*
* @return bool
*/
public function shareApiLinkDefaultExpireDate() {
return $this->config->getAppValue('core', 'shareapi_default_expire_date', 'no') === 'yes';
}
/**
* Is default expire date enforced
*`
* @return bool
*/
public function shareApiLinkDefaultExpireDateEnforced() {
return $this->shareApiLinkDefaultExpireDate() &&
$this->config->getAppValue('core', 'shareapi_enforce_expire_date', 'no') === 'yes';
}
/**
* Number of default expire days
*shareApiLinkAllowPublicUpload
* @return int
*/
public function shareApiLinkDefaultExpireDays() {
return (int)$this->config->getAppValue('core', 'shareapi_expire_after_n_days', '7');
}
/**
* Allow public upload on link shares
*
* @return bool
*/
public function shareApiLinkAllowPublicUpload() {
return $this->config->getAppValue('core', 'shareapi_allow_public_upload', 'yes') === 'yes';
}
/**
* check if user can only share with group members
* @return bool
*/
public function shareWithGroupMembersOnly() {
return $this->config->getAppValue('core', 'shareapi_only_share_with_group_members', 'no') === 'yes';
}
/**
* Check if users can share with groups
* @return bool
*/
public function allowGroupSharing() {
return $this->config->getAppValue('core', 'shareapi_allow_group_sharing', 'yes') === 'yes';
}
/**
* Copied from \OC_Util::isSharingDisabledForUser
*
* TODO: Deprecate fuction from OC_Util
*
* @param string $userId
* @return bool
*/
public function sharingDisabledForUser($userId) {
if ($userId === null) {
return false;
}
if (isset($this->sharingDisabledForUsersCache[$userId])) {
return $this->sharingDisabledForUsersCache[$userId];
}
if ($this->config->getAppValue('core', 'shareapi_exclude_groups', 'no') === 'yes') {
$groupsList = $this->config->getAppValue('core', 'shareapi_exclude_groups_list', '');
$excludedGroups = json_decode($groupsList);
if (is_null($excludedGroups)) {
$excludedGroups = explode(',', $groupsList);
$newValue = json_encode($excludedGroups);
$this->config->setAppValue('core', 'shareapi_exclude_groups_list', $newValue);
}
$user = $this->userManager->get($userId);
$usersGroups = $this->groupManager->getUserGroupIds($user);
if (!empty($usersGroups)) {
$remainingGroups = array_diff($usersGroups, $excludedGroups);
// if the user is only in groups which are disabled for sharing then
// sharing is also disabled for the user
if (empty($remainingGroups)) {
$this->sharingDisabledForUsersCache[$userId] = true;
return true;
}
}
}
$this->sharingDisabledForUsersCache[$userId] = false;
return false;
}
/**
* @inheritdoc
*/
public function outgoingServer2ServerSharesAllowed() {
return $this->config->getAppValue('files_sharing', 'outgoing_server2server_share_enabled', 'yes') === 'yes';
}
/**
* @inheritdoc
*/
public function shareProviderExists($shareType) {
try {
$this->factory->getProviderForType($shareType);
} catch (ProviderException $e) {
return false;
}
return true;
}
}