nextcloud/lib/private/Share/Helper.php

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<?php
/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
*
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* @author Björn Schießle <bjoern@schiessle.org>
* @author Christoph Wurst <christoph@winzerhof-wurst.at>
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* @author Joas Schilling <coding@schilljs.com>
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* @author Miguel Prokop <miguel.prokop@vtu.com>
* @author Morris Jobke <hey@morrisjobke.de>
*
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* @license AGPL-3.0
*
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* 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.
*
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* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* 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\Share;
class Helper extends \OC\Share\Constants {
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/**
* get default expire settings defined by the admin
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* @return array contains 'defaultExpireDateSet', 'enforceExpireDate', 'expireAfterDays'
*/
public static function getDefaultExpireSetting() {
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$config = \OC::$server->getConfig();
$defaultExpireSettings = ['defaultExpireDateSet' => false];
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// get default expire settings
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$defaultExpireDate = $config->getAppValue('core', 'shareapi_default_expire_date', 'no');
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if ($defaultExpireDate === 'yes') {
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$enforceExpireDate = $config->getAppValue('core', 'shareapi_enforce_expire_date', 'no');
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$defaultExpireSettings['defaultExpireDateSet'] = true;
$defaultExpireSettings['expireAfterDays'] = (int)$config->getAppValue('core', 'shareapi_expire_after_n_days', '7');
$defaultExpireSettings['enforceExpireDate'] = $enforceExpireDate === 'yes';
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}
return $defaultExpireSettings;
}
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public static function calcExpireDate() {
$expireAfter = \OC\Share\Share::getExpireInterval() * 24 * 60 * 60;
$expireAt = time() + $expireAfter;
$date = new \DateTime();
$date->setTimestamp($expireAt);
$date->setTime(0, 0, 0);
//$dateString = $date->format('Y-m-d') . ' 00:00:00';
return $date;
}
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/**
* calculate expire date
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* @param array $defaultExpireSettings contains 'defaultExpireDateSet', 'enforceExpireDate', 'expireAfterDays'
* @param int $creationTime timestamp when the share was created
* @param int $userExpireDate expire timestamp set by the user
* @return mixed integer timestamp or False
*/
public static function calculateExpireDate($defaultExpireSettings, $creationTime, $userExpireDate = null) {
$expires = false;
$defaultExpires = null;
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if (!empty($defaultExpireSettings['defaultExpireDateSet'])) {
$defaultExpires = $creationTime + $defaultExpireSettings['expireAfterDays'] * 86400;
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}
if (isset($userExpireDate)) {
// if the admin decided to enforce the default expire date then we only take
// the user defined expire date of it is before the default expire date
if ($defaultExpires && !empty($defaultExpireSettings['enforceExpireDate'])) {
$expires = min($userExpireDate, $defaultExpires);
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} else {
$expires = $userExpireDate;
}
} elseif ($defaultExpires && !empty($defaultExpireSettings['enforceExpireDate'])) {
$expires = $defaultExpires;
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}
return $expires;
}
/**
* Strips away a potential file names and trailing slashes:
* - http://localhost
* - http://localhost/
* - http://localhost/index.php
* - http://localhost/index.php/s/{shareToken}
*
* all return: http://localhost
*
* @param string $remote
* @return string
*/
protected static function fixRemoteURL($remote) {
$remote = str_replace('\\', '/', $remote);
if ($fileNamePosition = strpos($remote, '/index.php')) {
$remote = substr($remote, 0, $fileNamePosition);
}
$remote = rtrim($remote, '/');
return $remote;
}
/**
* check if two federated cloud IDs refer to the same user
*
* @param string $user1
* @param string $server1
* @param string $user2
* @param string $server2
* @return bool true if both users and servers are the same
*/
public static function isSameUserOnSameServer($user1, $server1, $user2, $server2) {
$normalizedServer1 = strtolower(\OC\Share\Share::removeProtocolFromUrl($server1));
$normalizedServer2 = strtolower(\OC\Share\Share::removeProtocolFromUrl($server2));
if (rtrim($normalizedServer1, '/') === rtrim($normalizedServer2, '/')) {
// FIXME this should be a method in the user management instead
\OCP\Util::emitHook(
'\OCA\Files_Sharing\API\Server2Server',
'preLoginNameUsedAsUserName',
['uid' => &$user1]
);
\OCP\Util::emitHook(
'\OCA\Files_Sharing\API\Server2Server',
'preLoginNameUsedAsUserName',
['uid' => &$user2]
);
if ($user1 === $user2) {
return true;
}
}
return false;
}
}