elFinderSession.php — File Manager Pro – Filester 1.8

filester / includes / File_manager / lib / php / elFinderSession.php

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elFinderSession.php

248 lines

1	<?php
2
3	/**
4	* elFinder - file manager for web.
5	* Session Wrapper Class.
6	*
7	* @package elfinder
8	* @author Naoki Sawada
9	**/
10
11	class elFinderSession implements elFinderSessionInterface
12	{
13	protected $started = false;
14
15	protected $cookiePay = false;
16
17	protected $keys = array();
18
19	protected $base64encode = false;
20
21	protected $opts = array(
22	'base64encode' => false,
23	'keys' => array(
24	'default' => 'elFinderCaches',
25	'netvolume' => 'elFinderNetVolumes'
26	)
27	);
28
29	public function __construct($opts)
30	{
31	$this->opts = array_merge($this->opts, $opts);
32	$this->base64encode = !empty($this->opts['base64encode']);
33	$this->keys = $this->opts['keys'];
34
35	return $this;
36	}
37
38	/**
39	* {@inheritdoc}
40	*/
41	public function start()
42	{
43	if (version_compare(PHP_VERSION, '5.4.0', '>=')) {
44	if (session_status() !== PHP_SESSION_ACTIVE) {
45	session_start();
46	}
47	} else {
48	set_error_handler(array($this, 'session_start_error'), E_NOTICE);
49	session_start();
50	restore_error_handler();
51	}
52	$this->started = session_id() ? true : false;
53
54	return $this;
55	}
56
57	/**
58	* {@inheritdoc}
59	*/
60	public function close()
61	{
62	if ($this->started) {
63	if (!$this->cookiePay) {
64	$cParm = session_get_cookie_params();
65	ini_set('session.use_cookies', 0);
66	setcookie(session_name(), session_id(), 0, $cParm['path'], $cParm['domain'], $cParm['secure'], $cParm['httponly']);
67	$this->cookiePay = true;
68	}
69	session_write_close();
70	}
71	$this->started = false;
72
73	return $this;
74	}
75
76	/**
77	* {@inheritdoc}
78	*/
79	public function get($key, $empty = null)
80	{
81	$closed = false;
82	if (!$this->started) {
83	$closed = true;
84	$this->start();
85	}
86
87	$data = null;
88
89	if ($this->started) {
90	$session =& $this->getSessionRef($key);
91	$data = $session;
92	if ($data && $this->base64encode) {
93	$data = $this->decodeData($data);
94	}
95	}
96
97	$checkFn = null;
98	if (!is_null($empty)) {
99	if (is_string($empty)) {
100	$checkFn = 'is_string';
101	} elseif (is_array($empty)) {
102	$checkFn = 'is_array';
103	} elseif (is_object($empty)) {
104	$checkFn = 'is_object';
105	} elseif (is_float($empty)) {
106	$checkFn = 'is_float';
107	} elseif (is_int($empty)) {
108	$checkFn = 'is_int';
109	}
110	}
111
112	if (is_null($data) \|\| ($checkFn && !$checkFn($data))) {
113	$session = $data = $empty;
114	}
115
116	if ($closed) {
117	$this->close();
118	}
119
120	return $data;
121	}
122
123	/**
124	* {@inheritdoc}
125	*/
126	public function set($key, $data)
127	{
128	$closed = false;
129	if (!$this->started) {
130	$closed = true;
131	$this->start();
132	}
133	$session =& $this->getSessionRef($key);
134	if ($this->base64encode) {
135	$data = $this->encodeData($data);
136	}
137	$session = $data;
138
139	if ($closed) {
140	$this->close();
141	}
142
143	return $this;
144	}
145
146	/**
147	* {@inheritdoc}
148	*/
149	public function remove($key)
150	{
151	$closed = false;
152	if (!$this->started) {
153	$closed = true;
154	$this->start();
155	}
156
157	list($cat, $name) = array_pad(explode('.', $key, 2), 2, null);
158	if (is_null($name)) {
159	if (!isset($this->keys[$cat])) {
160	$name = $cat;
161	$cat = 'default';
162	}
163	}
164	if (isset($this->keys[$cat])) {
165	$cat = $this->keys[$cat];
166	} else {
167	$name = $cat . '.' . $name;
168	$cat = $this->keys['default'];
169	}
170	if (is_null($name)) {
171	unset($_SESSION[$cat]);
172	} else {
173	if (isset($_SESSION[$cat]) && is_array($_SESSION[$cat])) {
174	unset($_SESSION[$cat][$name]);
175	}
176	}
177
178	if ($closed) {
179	$this->close();
180	}
181
182	return $this;
183	}
184
185	protected function & getSessionRef($key)
186	{
187	$session = null;
188	if ($this->started) {
189	list($cat, $name) = array_pad(explode('.', $key, 2), 2, null);
190	if (is_null($name)) {
191	if (!isset($this->keys[$cat])) {
192	$name = $cat;
193	$cat = 'default';
194	}
195	}
196	if (isset($this->keys[$cat])) {
197	$cat = $this->keys[$cat];
198	} else {
199	$name = $cat . '.' . $name;
200	$cat = $this->keys['default'];
201	}
202	if (is_null($name)) {
203	if (!isset($_SESSION[$cat])) {
204	$_SESSION[$cat] = null;
205	}
206	$session =& $_SESSION[$cat];
207	} else {
208	if (!isset($_SESSION[$cat]) \|\| !is_array($_SESSION[$cat])) {
209	$_SESSION[$cat] = array();
210	}
211	if (!isset($_SESSION[$cat][$name])) {
212	$_SESSION[$cat][$name] = null;
213	}
214	$session =& $_SESSION[$cat][$name];
215	}
216	}
217	return $session;
218	}
219
220	protected function encodeData($data)
221	{
222	if ($this->base64encode) {
223	$data = base64_encode(serialize($data));
224	}
225	return $data;
226	}
227
228	protected function decodeData($data)
229	{
230	if ($this->base64encode) {
231	if (is_string($data)) {
232	if (($data = base64_decode($data)) !== false) {
233	$data = unserialize($data);
234	} else {
235	$data = null;
236	}
237	} else {
238	$data = null;
239	}
240	}
241	return $data;
242	}
243
244	protected function session_start_error($errno, $errstr)
245	{
246	}
247	}
248