1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
|
<?php
namespace Auth;
use Core\Security;
use Core\Tool;
/**
* RememberMe model
*
* @package auth
* @author Frederic Guillot
*/
class RememberMe extends Base
{
/**
* Backend name
*
* @var string
*/
const AUTH_NAME = 'RememberMe';
/**
* SQL table name
*
* @var string
*/
const TABLE = 'remember_me';
/**
* Cookie name
*
* @var string
*/
const COOKIE_NAME = '__R';
/**
* Expiration (60 days)
*
* @var integer
*/
const EXPIRATION = 5184000;
/**
* Get a remember me record
*
* @access public
* @param $token
* @param $sequence
* @return mixed
*/
public function find($token, $sequence)
{
return $this->db
->table(self::TABLE)
->eq('token', $token)
->eq('sequence', $sequence)
->gt('expiration', time())
->findOne();
}
/**
* Get all sessions for a given user
*
* @access public
* @param integer $user_id User id
* @return array
*/
public function getAll($user_id)
{
return $this->db
->table(self::TABLE)
->eq('user_id', $user_id)
->desc('date_creation')
->columns('id', 'ip', 'user_agent', 'date_creation', 'expiration')
->findAll();
}
/**
* Authenticate the user with the cookie
*
* @access public
* @return bool
*/
public function authenticate()
{
$credentials = $this->readCookie();
if ($credentials !== false) {
$record = $this->find($credentials['token'], $credentials['sequence']);
if ($record) {
// Update the sequence
$this->writeCookie(
$record['token'],
$this->update($record['token'], $record['sequence']),
$record['expiration']
);
// Create the session
$this->user->updateSession($this->user->getById($record['user_id']));
$this->acl->isRememberMe(true);
// Update last login infos
$this->lastLogin->create(
self::AUTH_NAME,
$this->acl->getUserId(),
$this->user->getIpAddress(),
$this->user->getUserAgent()
);
return true;
}
}
return false;
}
/**
* Update the database and the cookie with a new sequence
*
* @access public
*/
public function refresh()
{
$credentials = $this->readCookie();
if ($credentials !== false) {
$record = $this->find($credentials['token'], $credentials['sequence']);
if ($record) {
// Update the sequence
$this->writeCookie(
$record['token'],
$this->update($record['token'], $record['sequence']),
$record['expiration']
);
}
}
}
/**
* Remove a session record
*
* @access public
* @param integer $session_id Session id
* @return mixed
*/
public function remove($session_id)
{
return $this->db
->table(self::TABLE)
->eq('id', $session_id)
->remove();
}
/**
* Remove the current RememberMe session and the cookie
*
* @access public
* @param integer $user_id User id
*/
public function destroy($user_id)
{
$credentials = $this->readCookie();
if ($credentials !== false) {
$this->deleteCookie();
$this->db
->table(self::TABLE)
->eq('user_id', $user_id)
->eq('token', $credentials['token'])
->remove();
}
}
/**
* Create a new RememberMe session
*
* @access public
* @param integer $user_id User id
* @param string $ip IP Address
* @param string $user_agent User Agent
* @return array
*/
public function create($user_id, $ip, $user_agent)
{
$token = hash('sha256', $user_id.$user_agent.$ip.Security::generateToken());
$sequence = Security::generateToken();
$expiration = time() + self::EXPIRATION;
$this->cleanup($user_id);
$this->db
->table(self::TABLE)
->insert(array(
'user_id' => $user_id,
'ip' => $ip,
'user_agent' => $user_agent,
'token' => $token,
'sequence' => $sequence,
'expiration' => $expiration,
'date_creation' => time(),
));
return array(
'token' => $token,
'sequence' => $sequence,
'expiration' => $expiration,
);
}
/**
* Remove old sessions for a given user
*
* @access public
* @param integer $user_id User id
* @return bool
*/
public function cleanup($user_id)
{
return $this->db
->table(self::TABLE)
->eq('user_id', $user_id)
->lt('expiration', time())
->remove();
}
/**
* Return a new sequence token and update the database
*
* @access public
* @param string $token Session token
* @param string $sequence Sequence token
* @return string
*/
public function update($token, $sequence)
{
$new_sequence = Security::generateToken();
$this->db
->table(self::TABLE)
->eq('token', $token)
->eq('sequence', $sequence)
->update(array('sequence' => $new_sequence));
return $new_sequence;
}
/**
* Encode the cookie
*
* @access public
* @param string $token Session token
* @param string $sequence Sequence token
* @return string
*/
public function encodeCookie($token, $sequence)
{
return implode('|', array($token, $sequence));
}
/**
* Decode the value of a cookie
*
* @access public
* @param string $value Raw cookie data
* @return array
*/
public function decodeCookie($value)
{
list($token, $sequence) = explode('|', $value);
return array(
'token' => $token,
'sequence' => $sequence,
);
}
/**
* Return true if the current user has a RememberMe cookie
*
* @access public
* @return bool
*/
public function hasCookie()
{
return ! empty($_COOKIE[self::COOKIE_NAME]);
}
/**
* Write and encode the cookie
*
* @access public
* @param string $token Session token
* @param string $sequence Sequence token
* @param string $expiration Cookie expiration
*/
public function writeCookie($token, $sequence, $expiration)
{
setcookie(
self::COOKIE_NAME,
$this->encodeCookie($token, $sequence),
$expiration,
BASE_URL_DIRECTORY,
null,
Tool::isHTTPS(),
true
);
}
/**
* Read and decode the cookie
*
* @access public
* @return mixed
*/
public function readCookie()
{
if (empty($_COOKIE[self::COOKIE_NAME])) {
return false;
}
return $this->decodeCookie($_COOKIE[self::COOKIE_NAME]);
}
/**
* Remove the cookie
*
* @access public
*/
public function deleteCookie()
{
setcookie(
self::COOKIE_NAME,
'',
time() - 3600,
BASE_URL_DIRECTORY,
null,
Tool::isHTTPS(),
true
);
}
}
|
