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nextcloud/core/ajax/share.php

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<?php
/**
* @author Arthur Schiwon <blizzz@owncloud.com>
* @author Bart Visscher <bartv@thisnet.nl>
* @author Björn Schießle <schiessle@owncloud.com>
* @author Craig Morrissey <craig@owncloud.com>
* @author dampfklon <me@dampfklon.de>
* @author Felix Böhm <felixboehm@gmx.de>
* @author Joas Schilling <nickvergessen@owncloud.com>
* @author Jörn Friedrich Dreyer <jfd@butonic.de>
* @author Lukas Reschke <lukas@owncloud.com>
* @author Michael Gapczynski <GapczynskiM@gmail.com>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Ramiro Aparicio <rapariciog@gmail.com>
* @author Robin Appelman <icewind@owncloud.com>
* @author Roeland Jago Douma <rullzer@owncloud.com>
* @author Thomas Müller <thomas.mueller@tmit.eu>
* @author Thomas Tanghus <thomas@tanghus.net>
*
* @copyright Copyright (c) 2016, ownCloud, Inc.
* @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/>
*
*/
use OCP\IUser;
OC_JSON::checkLoggedIn();
OCP\JSON::callCheck();
$defaults = new \OCP\Defaults();
if (isset($_POST['action']) && isset($_POST['itemType']) && isset($_POST['itemSource'])) {
switch ($_POST['action']) {
case 'share':
if (isset($_POST['shareType']) && isset($_POST['shareWith']) && isset($_POST['permissions'])) {
try {
$shareType = (int)$_POST['shareType'];
$shareWith = $_POST['shareWith'];
$itemSourceName = isset($_POST['itemSourceName']) ? (string)$_POST['itemSourceName'] : null;
/*
* Nasty nasty fix for https://github.com/owncloud/core/issues/19950
*/
$passwordChanged = null;
if (is_array($shareWith)) {
$passwordChanged = ($shareWith['passwordChanged'] === 'true');
if ($shareType === OCP\Share::SHARE_TYPE_LINK && $shareWith['password'] === '') {
$shareWith = null;
} else {
$shareWith = $shareWith['password'];
}
} else {
/*
* We need this branch since the calendar and contacts also use this
* endpoint
*/
if ($shareType === OCP\Share::SHARE_TYPE_LINK && $shareWith === '') {
$shareWith = null;
}
}
$itemSourceName=(isset($_POST['itemSourceName'])) ? (string)$_POST['itemSourceName']:'';
$token = OCP\Share::shareItem(
$_POST['itemType'],
$_POST['itemSource'],
$shareType,
$shareWith,
$_POST['permissions'],
$itemSourceName,
(!empty($_POST['expirationDate']) ? new \DateTime((string)$_POST['expirationDate']) : null),
$passwordChanged
);
if (is_string($token)) {
OC_JSON::success(array('data' => array('token' => $token)));
} else {
OC_JSON::success();
}
} catch (\OC\HintException $exception) {
OC_JSON::error(array('data' => array('message' => $exception->getHint())));
} catch (Exception $exception) {
OC_JSON::error(array('data' => array('message' => $exception->getMessage())));
}
}
break;
case 'unshare':
if (isset($_POST['shareType']) && isset($_POST['shareWith'])) {
if ((int)$_POST['shareType'] === OCP\Share::SHARE_TYPE_LINK && $_POST['shareWith'] == '') {
$shareWith = null;
} else {
$shareWith = (string)$_POST['shareWith'];
}
$return = OCP\Share::unshare((string)$_POST['itemType'],(string) $_POST['itemSource'], (int)$_POST['shareType'], $shareWith);
($return) ? OC_JSON::success() : OC_JSON::error();
}
break;
case 'setPermissions':
if (isset($_POST['shareType']) && isset($_POST['shareWith']) && isset($_POST['permissions'])) {
$return = OCP\Share::setPermissions(
(string)$_POST['itemType'],
(string)$_POST['itemSource'],
(int)$_POST['shareType'],
(string)$_POST['shareWith'],
(int)$_POST['permissions']
);
($return) ? OC_JSON::success() : OC_JSON::error();
}
break;
case 'setExpirationDate':
if (isset($_POST['date'])) {
try {
$return = OCP\Share::setExpirationDate((string)$_POST['itemType'], (string)$_POST['itemSource'], (string)$_POST['date']);
($return) ? OC_JSON::success() : OC_JSON::error();
} catch (\Exception $e) {
OC_JSON::error(array('data' => array('message' => $e->getMessage())));
}
}
break;
case 'informRecipients':
$l = \OC::$server->getL10N('core');
$shareType = (int) $_POST['shareType'];
$itemType = (string)$_POST['itemType'];
$itemSource = (string)$_POST['itemSource'];
$recipient = (string)$_POST['recipient'];
$userManager = \OC::$server->getUserManager();
$recipientList = [];
if($shareType === \OCP\Share::SHARE_TYPE_USER) {
$recipientList[] = $userManager->get($recipient);
} elseif ($shareType === \OCP\Share::SHARE_TYPE_GROUP) {
$recipientList = \OC_Group::usersInGroup($recipient);
$group = \OC::$server->getGroupManager()->get($recipient);
$recipientList = $group->searchUsers('');
}
// don't send a mail to the user who shared the file
$recipientList = array_filter($recipientList, function($user) {
/** @var IUser $user */
return $user->getUID() !== \OCP\User::getUser();
});
$mailNotification = new \OC\Share\MailNotifications(
\OC::$server->getUserSession()->getUser(),
\OC::$server->getL10N('lib'),
\OC::$server->getMailer(),
\OC::$server->getLogger(),
$defaults
);
$result = $mailNotification->sendInternalShareMail($recipientList, $itemSource, $itemType);
\OCP\Share::setSendMailStatus($itemType, $itemSource, $shareType, $recipient, true);
if (empty($result)) {
OCP\JSON::success();
} else {
OCP\JSON::error(array(
'data' => array(
'message' => $l->t("Couldn't send mail to following users: %s ",
implode(', ', $result)
)
)
));
}
break;
case 'informRecipientsDisabled':
$itemSource = (string)$_POST['itemSource'];
$shareType = (int)$_POST['shareType'];
$itemType = (string)$_POST['itemType'];
$recipient = (string)$_POST['recipient'];
\OCP\Share::setSendMailStatus($itemType, $itemSource, $shareType, $recipient, false);
OCP\JSON::success();
break;
case 'email':
// read post variables
$link = (string)$_POST['link'];
$file = (string)$_POST['file'];
$to_address = (string)$_POST['toaddress'];
$mailNotification = new \OC\Share\MailNotifications(
\OC::$server->getUserSession()->getUser(),
\OC::$server->getL10N('lib'),
\OC::$server->getMailer(),
\OC::$server->getLogger(),
$defaults
);
$expiration = null;
if (isset($_POST['expiration']) && $_POST['expiration'] !== '') {
try {
$date = new DateTime((string)$_POST['expiration']);
$expiration = $date->getTimestamp();
} catch (Exception $e) {
\OCP\Util::writeLog('sharing', "Couldn't read date: " . $e->getMessage(), \OCP\Util::ERROR);
}
}
$result = $mailNotification->sendLinkShareMail($to_address, $file, $link, $expiration);
if(empty($result)) {
// Get the token from the link
$linkParts = explode('/', $link);
$token = array_pop($linkParts);
// Get the share for the token
$share = \OCP\Share::getShareByToken($token, false);
if ($share !== false) {
$currentUser = \OC::$server->getUserSession()->getUser()->getUID();
$file = '/' . ltrim($file, '/');
// Check whether share belongs to the user and whether the file is the same
if ($share['file_target'] === $file && $share['uid_owner'] === $currentUser) {
// Get the path for the user
$view = new \OC\Files\View('/' . $currentUser . '/files');
$fileId = (int) $share['item_source'];
$path = $view->getPath((int) $share['item_source']);
if ($path !== null) {
$event = \OC::$server->getActivityManager()->generateEvent();
$event->setApp(\OCA\Files_Sharing\Activity::FILES_SHARING_APP)
->setType(\OCA\Files_Sharing\Activity::TYPE_SHARED)
->setAuthor($currentUser)
->setAffectedUser($currentUser)
->setObject('files', $fileId, $path)
->setSubject(\OCA\Files_Sharing\Activity::SUBJECT_SHARED_EMAIL, [$path, $to_address]);
\OC::$server->getActivityManager()->publish($event);
}
}
}
\OCP\JSON::success();
} else {
$l = \OC::$server->getL10N('core');
OCP\JSON::error(array(
'data' => array(
'message' => $l->t("Couldn't send mail to following users: %s ",
implode(', ', $result)
)
)
));
}
break;
}
} else if (isset($_GET['fetch'])) {
switch ($_GET['fetch']) {
case 'getItemsSharedStatuses':
if (isset($_GET['itemType'])) {
$return = OCP\Share::getItemsShared((string)$_GET['itemType'], OCP\Share::FORMAT_STATUSES);
is_array($return) ? OC_JSON::success(array('data' => $return)) : OC_JSON::error();
}
break;
case 'getItem':
if (isset($_GET['itemType'])
&& isset($_GET['itemSource'])
&& isset($_GET['checkReshare'])
&& isset($_GET['checkShares'])) {
if ($_GET['checkReshare'] == 'true') {
$reshare = OCP\Share::getItemSharedWithBySource(
(string)$_GET['itemType'],
(string)$_GET['itemSource'],
OCP\Share::FORMAT_NONE,
null,
true
);
} else {
$reshare = false;
}
if ($_GET['checkShares'] == 'true') {
$shares = OCP\Share::getItemShared(
(string)$_GET['itemType'],
(string)$_GET['itemSource'],
OCP\Share::FORMAT_NONE,
null,
true
);
} else {
$shares = false;
}
OC_JSON::success(array('data' => array('reshare' => $reshare, 'shares' => $shares)));
}
break;
case 'getShareWithEmail':
$result = array();
if (isset($_GET['search'])) {
$cm = OC::$server->getContactsManager();
if (!is_null($cm) && $cm->isEnabled()) {
$contacts = $cm->search((string)$_GET['search'], array('FN', 'EMAIL'));
foreach ($contacts as $contact) {
if (!isset($contact['EMAIL'])) {
continue;
}
$emails = $contact['EMAIL'];
if (!is_array($emails)) {
$emails = array($emails);
}
foreach($emails as $email) {
$result[] = array(
'id' => $contact['id'],
'email' => $email,
'displayname' => $contact['FN'],
);
}
}
}
}
OC_JSON::success(array('data' => $result));
break;
case 'getShareWith':
if (isset($_GET['search'])) {
$shareWithinGroupOnly = OC\Share\Share::shareWithGroupMembersOnly();
$shareWith = array();
$groups = OC_Group::getGroups((string)$_GET['search']);
if ($shareWithinGroupOnly) {
$usergroups = OC_Group::getUserGroups(OC_User::getUser());
$groups = array_intersect($groups, $usergroups);
}
$sharedUsers = [];
$sharedGroups = [];
if (isset($_GET['itemShares'])) {
if (isset($_GET['itemShares'][OCP\Share::SHARE_TYPE_USER]) &&
is_array($_GET['itemShares'][OCP\Share::SHARE_TYPE_USER])) {
$sharedUsers = $_GET['itemShares'][OCP\Share::SHARE_TYPE_USER];
}
if (isset($_GET['itemShares'][OCP\Share::SHARE_TYPE_GROUP]) &&
is_array($_GET['itemShares'][OCP\Share::SHARE_TYPE_GROUP])) {
$sharedGroups = isset($_GET['itemShares'][OCP\Share::SHARE_TYPE_GROUP]);
}
}
$count = 0;
$users = array();
$limit = 0;
$offset = 0;
// limit defaults to 15 if not specified via request parameter and can be no larger than 500
$request_limit = min((int)$_GET['limit'] ?: 15, 500);
while ($count < $request_limit && count($users) == $limit) {
$limit = $request_limit - $count;
if ($shareWithinGroupOnly) {
$users = OC_Group::displayNamesInGroups($usergroups, (string)$_GET['search'], $limit, $offset);
} else {
$users = OC_User::getDisplayNames((string)$_GET['search'], $limit, $offset);
}
$offset += $limit;
foreach ($users as $uid => $displayName) {
if (in_array($uid, $sharedUsers)) {
continue;
}
if ((!isset($_GET['itemShares'])
|| !is_array($_GET['itemShares'][OCP\Share::SHARE_TYPE_USER])
|| !in_array($uid, $_GET['itemShares'][OCP\Share::SHARE_TYPE_USER]))
&& $uid != OC_User::getUser()) {
$shareWith[] = array(
'label' => $displayName,
'value' => array(
'shareType' => OCP\Share::SHARE_TYPE_USER,
'shareWith' => $uid)
);
$count++;
}
}
}
$count = 0;
// enable l10n support
$l = \OC::$server->getL10N('core');
foreach ($groups as $group) {
if (in_array($group, $sharedGroups)) {
continue;
}
if ($count < $request_limit) {
if (!isset($_GET['itemShares'])
|| !isset($_GET['itemShares'][OCP\Share::SHARE_TYPE_GROUP])
|| !is_array($_GET['itemShares'][OCP\Share::SHARE_TYPE_GROUP])
|| !in_array($group, $_GET['itemShares'][OCP\Share::SHARE_TYPE_GROUP])) {
$shareWith[] = array(
'label' => $group,
'value' => array(
'shareType' => OCP\Share::SHARE_TYPE_GROUP,
'shareWith' => $group
)
);
$count++;
}
} else {
break;
}
}
// allow user to add unknown remote addresses for server-to-server share
$backend = \OCP\Share::getBackend((string)$_GET['itemType']);
if ($backend->isShareTypeAllowed(\OCP\Share::SHARE_TYPE_REMOTE)) {
if (substr_count((string)$_GET['search'], '@') >= 1) {
$shareWith[] = array(
'label' => (string)$_GET['search'],
'value' => array(
'shareType' => \OCP\Share::SHARE_TYPE_REMOTE,
'shareWith' => (string)$_GET['search']
)
);
}
$contactManager = \OC::$server->getContactsManager();
$addressBookContacts = $contactManager->search($_GET['search'], ['CLOUD', 'FN']);
foreach ($addressBookContacts as $contact) {
if (isset($contact['CLOUD'])) {
foreach ($contact['CLOUD'] as $cloudId) {
$shareWith[] = array(
'label' => $contact['FN'] . ' (' . $cloudId . ')',
'value' => array(
'shareType' => \OCP\Share::SHARE_TYPE_REMOTE,
'shareWith' => $cloudId
)
);
}
}
}
}
$sharingAutocompletion = \OC::$server->getConfig()
->getAppValue('core', 'shareapi_allow_share_dialog_user_enumeration', 'yes');
if ($sharingAutocompletion !== 'yes') {
$searchTerm = strtolower($_GET['search']);
$shareWith = array_filter($shareWith, function($user) use ($searchTerm) {
return strtolower($user['label']) === $searchTerm
|| strtolower($user['value']['shareWith']) === $searchTerm;
});
}
$sorter = new \OC\Share\SearchResultSorter((string)$_GET['search'],
'label',
\OC::$server->getLogger());
usort($shareWith, array($sorter, 'sort'));
OC_JSON::success(array('data' => $shareWith));
}
break;
}
}
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