141 lines
2.9 KiB
PHP
141 lines
2.9 KiB
PHP
<?php
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/**
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* @author Joas Schilling <nickvergessen@owncloud.com>
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*
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* @copyright Copyright (c) 2015, ownCloud, Inc.
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* @license AGPL-3.0
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*
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* This code is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License, version 3,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License, version 3,
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* along with this program. If not, see <http://www.gnu.org/licenses/>
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*
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*/
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namespace OC\Session;
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use OCP\ISession;
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use OCP\Security\ICrypto;
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class CryptoSessionData implements \ArrayAccess, ISession {
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/** @var ISession */
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protected $session;
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/** @var \OCP\Security\ICrypto */
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protected $crypto;
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/** @var string */
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protected $passphrase;
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/**
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* @param ISession $session
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* @param ICrypto $crypto
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* @param string $passphrase
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*/
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public function __construct(ISession $session, ICrypto $crypto, $passphrase) {
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$this->crypto = $crypto;
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$this->session = $session;
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$this->passphrase = $passphrase;
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}
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/**
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* Set a value in the session
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*
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* @param string $key
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* @param mixed $value
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*/
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public function set($key, $value) {
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$encryptedValue = $this->crypto->encrypt($value, $this->passphrase);
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$this->session->set($key, $encryptedValue);
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}
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/**
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* Get a value from the session
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*
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* @param string $key
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* @return mixed should return null if $key does not exist
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* @throws \Exception when the data could not be decrypted
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*/
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public function get($key) {
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$encryptedValue = $this->session->get($key);
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if ($encryptedValue === null) {
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return null;
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}
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$value = $this->crypto->decrypt($encryptedValue, $this->passphrase);
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return $value;
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}
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/**
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* Check if a named key exists in the session
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*
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* @param string $key
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* @return bool
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*/
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public function exists($key) {
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return $this->session->exists($key);
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}
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/**
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* Remove a $key/$value pair from the session
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*
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* @param string $key
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*/
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public function remove($key) {
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$this->session->remove($key);
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}
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/**
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* Reset and recreate the session
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*/
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public function clear() {
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$this->session->clear();
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}
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/**
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* Close the session and release the lock
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*/
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public function close() {
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$this->session->close();
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}
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/**
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* @param mixed $offset
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* @return bool
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*/
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public function offsetExists($offset) {
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return $this->exists($offset);
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}
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/**
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* @param mixed $offset
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* @return mixed
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*/
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public function offsetGet($offset) {
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return $this->get($offset);
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}
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/**
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* @param mixed $offset
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* @param mixed $value
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*/
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public function offsetSet($offset, $value) {
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$this->set($offset, $value);
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}
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/**
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* @param mixed $offset
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*/
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public function offsetUnset($offset) {
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$this->remove($offset);
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}
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}
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