pictcode / lib / Cake / Model / Datasource / CakeSession.php @ 22fd3a57
履歴 | 表示 | アノテート | ダウンロード (18.596 KB)
| 1 |
<?php
|
|---|---|
| 2 |
/**
|
| 3 |
* Session class for CakePHP.
|
| 4 |
*
|
| 5 |
* CakePHP abstracts the handling of sessions.
|
| 6 |
* There are several convenient methods to access session information.
|
| 7 |
* This class is the implementation of those methods.
|
| 8 |
* They are mostly used by the Session Component.
|
| 9 |
*
|
| 10 |
* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
|
| 11 |
* Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
|
| 12 |
*
|
| 13 |
* Licensed under The MIT License
|
| 14 |
* For full copyright and license information, please see the LICENSE.txt
|
| 15 |
* Redistributions of files must retain the above copyright notice.
|
| 16 |
*
|
| 17 |
* @copyright Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
|
| 18 |
* @link http://cakephp.org CakePHP(tm) Project
|
| 19 |
* @package Cake.Model.Datasource
|
| 20 |
* @since CakePHP(tm) v .0.10.0.1222
|
| 21 |
* @license http://www.opensource.org/licenses/mit-license.php MIT License
|
| 22 |
*/
|
| 23 |
|
| 24 |
App::uses('Hash', 'Utility'); |
| 25 |
App::uses('Security', 'Utility'); |
| 26 |
|
| 27 |
/**
|
| 28 |
* Session class for CakePHP.
|
| 29 |
*
|
| 30 |
* CakePHP abstracts the handling of sessions. There are several convenient methods to access session information.
|
| 31 |
* This class is the implementation of those methods. They are mostly used by the Session Component.
|
| 32 |
*
|
| 33 |
* @package Cake.Model.Datasource
|
| 34 |
*/
|
| 35 |
class CakeSession { |
| 36 |
|
| 37 |
/**
|
| 38 |
* True if the Session is still valid
|
| 39 |
*
|
| 40 |
* @var bool
|
| 41 |
*/
|
| 42 |
public static $valid = false; |
| 43 |
|
| 44 |
/**
|
| 45 |
* Error messages for this session
|
| 46 |
*
|
| 47 |
* @var array
|
| 48 |
*/
|
| 49 |
public static $error = false; |
| 50 |
|
| 51 |
/**
|
| 52 |
* User agent string
|
| 53 |
*
|
| 54 |
* @var string
|
| 55 |
*/
|
| 56 |
protected static $_userAgent = ''; |
| 57 |
|
| 58 |
/**
|
| 59 |
* Path to where the session is active.
|
| 60 |
*
|
| 61 |
* @var string
|
| 62 |
*/
|
| 63 |
public static $path = '/'; |
| 64 |
|
| 65 |
/**
|
| 66 |
* Error number of last occurred error
|
| 67 |
*
|
| 68 |
* @var int
|
| 69 |
*/
|
| 70 |
public static $lastError = null; |
| 71 |
|
| 72 |
/**
|
| 73 |
* Start time for this session.
|
| 74 |
*
|
| 75 |
* @var int
|
| 76 |
*/
|
| 77 |
public static $time = false; |
| 78 |
|
| 79 |
/**
|
| 80 |
* Cookie lifetime
|
| 81 |
*
|
| 82 |
* @var int
|
| 83 |
*/
|
| 84 |
public static $cookieLifeTime; |
| 85 |
|
| 86 |
/**
|
| 87 |
* Time when this session becomes invalid.
|
| 88 |
*
|
| 89 |
* @var int
|
| 90 |
*/
|
| 91 |
public static $sessionTime = false; |
| 92 |
|
| 93 |
/**
|
| 94 |
* Current Session id
|
| 95 |
*
|
| 96 |
* @var string
|
| 97 |
*/
|
| 98 |
public static $id = null; |
| 99 |
|
| 100 |
/**
|
| 101 |
* Hostname
|
| 102 |
*
|
| 103 |
* @var string
|
| 104 |
*/
|
| 105 |
public static $host = null; |
| 106 |
|
| 107 |
/**
|
| 108 |
* Session timeout multiplier factor
|
| 109 |
*
|
| 110 |
* @var int
|
| 111 |
*/
|
| 112 |
public static $timeout = null; |
| 113 |
|
| 114 |
/**
|
| 115 |
* Number of requests that can occur during a session time without the session being renewed.
|
| 116 |
* This feature is only used when config value `Session.autoRegenerate` is set to true.
|
| 117 |
*
|
| 118 |
* @var int
|
| 119 |
* @see CakeSession::_checkValid()
|
| 120 |
*/
|
| 121 |
public static $requestCountdown = 10; |
| 122 |
|
| 123 |
/**
|
| 124 |
* Whether or not the init function in this class was already called
|
| 125 |
*
|
| 126 |
* @var bool
|
| 127 |
*/
|
| 128 |
protected static $_initialized = false; |
| 129 |
|
| 130 |
/**
|
| 131 |
* Session cookie name
|
| 132 |
*
|
| 133 |
* @var string
|
| 134 |
*/
|
| 135 |
protected static $_cookieName = null; |
| 136 |
|
| 137 |
/**
|
| 138 |
* Pseudo constructor.
|
| 139 |
*
|
| 140 |
* @param string|null $base The base path for the Session
|
| 141 |
* @return void
|
| 142 |
*/
|
| 143 |
public static function init($base = null) { |
| 144 |
static::$time = time(); |
| 145 |
|
| 146 |
if (env('HTTP_USER_AGENT')) { |
| 147 |
static::$_userAgent = md5(env('HTTP_USER_AGENT') . Configure::read('Security.salt')); |
| 148 |
} |
| 149 |
|
| 150 |
static::_setPath($base); |
| 151 |
static::_setHost(env('HTTP_HOST')); |
| 152 |
|
| 153 |
if (!static::$_initialized) { |
| 154 |
register_shutdown_function('session_write_close'); |
| 155 |
} |
| 156 |
|
| 157 |
static::$_initialized = true; |
| 158 |
} |
| 159 |
|
| 160 |
/**
|
| 161 |
* Setup the Path variable
|
| 162 |
*
|
| 163 |
* @param string|null $base base path
|
| 164 |
* @return void
|
| 165 |
*/
|
| 166 |
protected static function _setPath($base = null) { |
| 167 |
if (empty($base)) { |
| 168 |
static::$path = '/'; |
| 169 |
return;
|
| 170 |
} |
| 171 |
if (strpos($base, 'index.php') !== false) { |
| 172 |
$base = str_replace('index.php', '', $base); |
| 173 |
} |
| 174 |
if (strpos($base, '?') !== false) { |
| 175 |
$base = str_replace('?', '', $base); |
| 176 |
} |
| 177 |
static::$path = $base; |
| 178 |
} |
| 179 |
|
| 180 |
/**
|
| 181 |
* Set the host name
|
| 182 |
*
|
| 183 |
* @param string $host Hostname
|
| 184 |
* @return void
|
| 185 |
*/
|
| 186 |
protected static function _setHost($host) { |
| 187 |
static::$host = $host; |
| 188 |
if (strpos(static::$host, ':') !== false) { |
| 189 |
static::$host = substr(static::$host, 0, strpos(static::$host, ':')); |
| 190 |
} |
| 191 |
} |
| 192 |
|
| 193 |
/**
|
| 194 |
* Starts the Session.
|
| 195 |
*
|
| 196 |
* @return bool True if session was started
|
| 197 |
*/
|
| 198 |
public static function start() { |
| 199 |
if (static::started()) { |
| 200 |
return true; |
| 201 |
} |
| 202 |
|
| 203 |
$id = static::id(); |
| 204 |
static::_startSession();
|
| 205 |
|
| 206 |
if (!$id && static::started()) { |
| 207 |
static::_checkValid();
|
| 208 |
} |
| 209 |
|
| 210 |
static::$error = false; |
| 211 |
static::$valid = true; |
| 212 |
return static::started(); |
| 213 |
} |
| 214 |
|
| 215 |
/**
|
| 216 |
* Determine if Session has been started.
|
| 217 |
*
|
| 218 |
* @return bool True if session has been started.
|
| 219 |
*/
|
| 220 |
public static function started() { |
| 221 |
return isset($_SESSION) && session_id(); |
| 222 |
} |
| 223 |
|
| 224 |
/**
|
| 225 |
* Returns true if given variable is set in session.
|
| 226 |
*
|
| 227 |
* @param string $name Variable name to check for
|
| 228 |
* @return bool True if variable is there
|
| 229 |
*/
|
| 230 |
public static function check($name) { |
| 231 |
if (empty($name) || !static::_hasSession() || !static::start()) { |
| 232 |
return false; |
| 233 |
} |
| 234 |
|
| 235 |
return Hash::get($_SESSION, $name) !== null; |
| 236 |
} |
| 237 |
|
| 238 |
/**
|
| 239 |
* Returns the session id.
|
| 240 |
* Calling this method will not auto start the session. You might have to manually
|
| 241 |
* assert a started session.
|
| 242 |
*
|
| 243 |
* Passing an id into it, you can also replace the session id if the session
|
| 244 |
* has not already been started.
|
| 245 |
* Note that depending on the session handler, not all characters are allowed
|
| 246 |
* within the session id. For example, the file session handler only allows
|
| 247 |
* characters in the range a-z A-Z 0-9 , (comma) and - (minus).
|
| 248 |
*
|
| 249 |
* @param string|null $id Id to replace the current session id
|
| 250 |
* @return string Session id
|
| 251 |
*/
|
| 252 |
public static function id($id = null) { |
| 253 |
if ($id) { |
| 254 |
static::$id = $id; |
| 255 |
session_id(static::$id); |
| 256 |
} |
| 257 |
if (static::started()) { |
| 258 |
return session_id();
|
| 259 |
} |
| 260 |
return static::$id; |
| 261 |
} |
| 262 |
|
| 263 |
/**
|
| 264 |
* Removes a variable from session.
|
| 265 |
*
|
| 266 |
* @param string $name Session variable to remove
|
| 267 |
* @return bool Success
|
| 268 |
*/
|
| 269 |
public static function delete($name) { |
| 270 |
if (static::check($name)) { |
| 271 |
static::_overwrite($_SESSION, Hash::remove($_SESSION, $name)); |
| 272 |
return !static::check($name); |
| 273 |
} |
| 274 |
return false; |
| 275 |
} |
| 276 |
|
| 277 |
/**
|
| 278 |
* Used to write new data to _SESSION, since PHP doesn't like us setting the _SESSION var itself.
|
| 279 |
*
|
| 280 |
* @param array &$old Set of old variables => values
|
| 281 |
* @param array $new New set of variable => value
|
| 282 |
* @return void
|
| 283 |
*/
|
| 284 |
protected static function _overwrite(&$old, $new) { |
| 285 |
if (!empty($old)) { |
| 286 |
foreach ($old as $key => $var) { |
| 287 |
if (!isset($new[$key])) { |
| 288 |
unset($old[$key]); |
| 289 |
} |
| 290 |
} |
| 291 |
} |
| 292 |
foreach ($new as $key => $var) { |
| 293 |
$old[$key] = $var; |
| 294 |
} |
| 295 |
} |
| 296 |
|
| 297 |
/**
|
| 298 |
* Return error description for given error number.
|
| 299 |
*
|
| 300 |
* @param int $errorNumber Error to set
|
| 301 |
* @return string Error as string
|
| 302 |
*/
|
| 303 |
protected static function _error($errorNumber) { |
| 304 |
if (!is_array(static::$error) || !array_key_exists($errorNumber, static::$error)) { |
| 305 |
return false; |
| 306 |
} |
| 307 |
return static::$error[$errorNumber]; |
| 308 |
} |
| 309 |
|
| 310 |
/**
|
| 311 |
* Returns last occurred error as a string, if any.
|
| 312 |
*
|
| 313 |
* @return mixed Error description as a string, or false.
|
| 314 |
*/
|
| 315 |
public static function error() { |
| 316 |
if (static::$lastError) { |
| 317 |
return static::_error(static::$lastError); |
| 318 |
} |
| 319 |
return false; |
| 320 |
} |
| 321 |
|
| 322 |
/**
|
| 323 |
* Returns true if session is valid.
|
| 324 |
*
|
| 325 |
* @return bool Success
|
| 326 |
*/
|
| 327 |
public static function valid() { |
| 328 |
if (static::start() && static::read('Config')) { |
| 329 |
if (static::_validAgentAndTime() && static::$error === false) { |
| 330 |
static::$valid = true; |
| 331 |
} else {
|
| 332 |
static::$valid = false; |
| 333 |
static::_setError(1, 'Session Highjacking Attempted !!!'); |
| 334 |
} |
| 335 |
} |
| 336 |
return static::$valid; |
| 337 |
} |
| 338 |
|
| 339 |
/**
|
| 340 |
* Tests that the user agent is valid and that the session hasn't 'timed out'.
|
| 341 |
* Since timeouts are implemented in CakeSession it checks the current static::$time
|
| 342 |
* against the time the session is set to expire. The User agent is only checked
|
| 343 |
* if Session.checkAgent == true.
|
| 344 |
*
|
| 345 |
* @return bool
|
| 346 |
*/
|
| 347 |
protected static function _validAgentAndTime() { |
| 348 |
$config = static::read('Config'); |
| 349 |
$validAgent = (
|
| 350 |
Configure::read('Session.checkAgent') === false || |
| 351 |
isset($config['userAgent']) && static::$_userAgent === $config['userAgent'] |
| 352 |
); |
| 353 |
return ($validAgent && static::$time <= $config['time']); |
| 354 |
} |
| 355 |
|
| 356 |
/**
|
| 357 |
* Get / Set the user agent
|
| 358 |
*
|
| 359 |
* @param string|null $userAgent Set the user agent
|
| 360 |
* @return string Current user agent.
|
| 361 |
*/
|
| 362 |
public static function userAgent($userAgent = null) { |
| 363 |
if ($userAgent) { |
| 364 |
static::$_userAgent = $userAgent; |
| 365 |
} |
| 366 |
if (empty(static::$_userAgent)) { |
| 367 |
CakeSession::init(static::$path); |
| 368 |
} |
| 369 |
return static::$_userAgent; |
| 370 |
} |
| 371 |
|
| 372 |
/**
|
| 373 |
* Returns given session variable, or all of them, if no parameters given.
|
| 374 |
*
|
| 375 |
* @param string|null $name The name of the session variable (or a path as sent to Set.extract)
|
| 376 |
* @return mixed The value of the session variable, null if session not available,
|
| 377 |
* session not started, or provided name not found in the session, false on failure.
|
| 378 |
*/
|
| 379 |
public static function read($name = null) { |
| 380 |
if (empty($name) && $name !== null) { |
| 381 |
return null; |
| 382 |
} |
| 383 |
if (!static::_hasSession() || !static::start()) { |
| 384 |
return null; |
| 385 |
} |
| 386 |
if ($name === null) { |
| 387 |
return static::_returnSessionVars(); |
| 388 |
} |
| 389 |
$result = Hash::get($_SESSION, $name); |
| 390 |
|
| 391 |
if (isset($result)) { |
| 392 |
return $result; |
| 393 |
} |
| 394 |
return null; |
| 395 |
} |
| 396 |
|
| 397 |
/**
|
| 398 |
* Returns all session variables.
|
| 399 |
*
|
| 400 |
* @return mixed Full $_SESSION array, or false on error.
|
| 401 |
*/
|
| 402 |
protected static function _returnSessionVars() { |
| 403 |
if (!empty($_SESSION)) { |
| 404 |
return $_SESSION; |
| 405 |
} |
| 406 |
static::_setError(2, 'No Session vars set'); |
| 407 |
return false; |
| 408 |
} |
| 409 |
|
| 410 |
/**
|
| 411 |
* Writes value to given session variable name.
|
| 412 |
*
|
| 413 |
* @param string|array $name Name of variable
|
| 414 |
* @param string $value Value to write
|
| 415 |
* @return bool True if the write was successful, false if the write failed
|
| 416 |
*/
|
| 417 |
public static function write($name, $value = null) { |
| 418 |
if (empty($name) || !static::start()) { |
| 419 |
return false; |
| 420 |
} |
| 421 |
|
| 422 |
$write = $name; |
| 423 |
if (!is_array($name)) { |
| 424 |
$write = array($name => $value); |
| 425 |
} |
| 426 |
foreach ($write as $key => $val) { |
| 427 |
static::_overwrite($_SESSION, Hash::insert($_SESSION, $key, $val)); |
| 428 |
if (Hash::get($_SESSION, $key) !== $val) { |
| 429 |
return false; |
| 430 |
} |
| 431 |
} |
| 432 |
return true; |
| 433 |
} |
| 434 |
|
| 435 |
/**
|
| 436 |
* Reads and deletes a variable from session.
|
| 437 |
*
|
| 438 |
* @param string $name The key to read and remove (or a path as sent to Hash.extract).
|
| 439 |
* @return mixed The value of the session variable, null if session not available,
|
| 440 |
* session not started, or provided name not found in the session.
|
| 441 |
*/
|
| 442 |
public static function consume($name) { |
| 443 |
if (empty($name)) { |
| 444 |
return null; |
| 445 |
} |
| 446 |
$value = static::read($name); |
| 447 |
if ($value !== null) { |
| 448 |
static::_overwrite($_SESSION, Hash::remove($_SESSION, $name)); |
| 449 |
} |
| 450 |
return $value; |
| 451 |
} |
| 452 |
|
| 453 |
/**
|
| 454 |
* Helper method to destroy invalid sessions.
|
| 455 |
*
|
| 456 |
* @return void
|
| 457 |
*/
|
| 458 |
public static function destroy() { |
| 459 |
if (!static::started()) { |
| 460 |
static::_startSession();
|
| 461 |
} |
| 462 |
|
| 463 |
if (static::started()) { |
| 464 |
session_destroy(); |
| 465 |
} |
| 466 |
|
| 467 |
$_SESSION = null; |
| 468 |
static::$id = null; |
| 469 |
static::$_cookieName = null; |
| 470 |
} |
| 471 |
|
| 472 |
/**
|
| 473 |
* Clears the session.
|
| 474 |
*
|
| 475 |
* Optionally also clears the session id and renews the session.
|
| 476 |
*
|
| 477 |
* @param bool $renew If the session should also be renewed. Defaults to true.
|
| 478 |
* @return void
|
| 479 |
*/
|
| 480 |
public static function clear($renew = true) { |
| 481 |
if (!$renew) { |
| 482 |
$_SESSION = array(); |
| 483 |
return;
|
| 484 |
} |
| 485 |
|
| 486 |
$_SESSION = null; |
| 487 |
static::$id = null; |
| 488 |
static::renew();
|
| 489 |
} |
| 490 |
|
| 491 |
/**
|
| 492 |
* Helper method to initialize a session, based on CakePHP core settings.
|
| 493 |
*
|
| 494 |
* Sessions can be configured with a few shortcut names as well as have any number of ini settings declared.
|
| 495 |
*
|
| 496 |
* @return void
|
| 497 |
* @throws CakeSessionException Throws exceptions when ini_set() fails.
|
| 498 |
*/
|
| 499 |
protected static function _configureSession() { |
| 500 |
$sessionConfig = Configure::read('Session'); |
| 501 |
|
| 502 |
if (isset($sessionConfig['defaults'])) { |
| 503 |
$defaults = static::_defaultConfig($sessionConfig['defaults']); |
| 504 |
if ($defaults) { |
| 505 |
$sessionConfig = Hash::merge($defaults, $sessionConfig); |
| 506 |
} |
| 507 |
} |
| 508 |
if (!isset($sessionConfig['ini']['session.cookie_secure']) && env('HTTPS')) { |
| 509 |
$sessionConfig['ini']['session.cookie_secure'] = 1; |
| 510 |
} |
| 511 |
if (isset($sessionConfig['timeout']) && !isset($sessionConfig['cookieTimeout'])) { |
| 512 |
$sessionConfig['cookieTimeout'] = $sessionConfig['timeout']; |
| 513 |
} |
| 514 |
if (!isset($sessionConfig['ini']['session.cookie_lifetime'])) { |
| 515 |
$sessionConfig['ini']['session.cookie_lifetime'] = $sessionConfig['cookieTimeout'] * 60; |
| 516 |
} |
| 517 |
|
| 518 |
if (!isset($sessionConfig['ini']['session.name'])) { |
| 519 |
$sessionConfig['ini']['session.name'] = $sessionConfig['cookie']; |
| 520 |
} |
| 521 |
static::$_cookieName = $sessionConfig['ini']['session.name']; |
| 522 |
|
| 523 |
if (!empty($sessionConfig['handler'])) { |
| 524 |
$sessionConfig['ini']['session.save_handler'] = 'user'; |
| 525 |
} elseif (!empty($sessionConfig['session.save_path']) && Configure::read('debug')) { |
| 526 |
if (!is_dir($sessionConfig['session.save_path'])) { |
| 527 |
mkdir($sessionConfig['session.save_path'], 0775, true); |
| 528 |
} |
| 529 |
} |
| 530 |
|
| 531 |
if (!isset($sessionConfig['ini']['session.gc_maxlifetime'])) { |
| 532 |
$sessionConfig['ini']['session.gc_maxlifetime'] = $sessionConfig['timeout'] * 60; |
| 533 |
} |
| 534 |
if (!isset($sessionConfig['ini']['session.cookie_httponly'])) { |
| 535 |
$sessionConfig['ini']['session.cookie_httponly'] = 1; |
| 536 |
} |
| 537 |
|
| 538 |
if (empty($_SESSION)) { |
| 539 |
if (!empty($sessionConfig['ini']) && is_array($sessionConfig['ini'])) { |
| 540 |
foreach ($sessionConfig['ini'] as $setting => $value) { |
| 541 |
if (ini_set($setting, $value) === false) { |
| 542 |
throw new CakeSessionException(__d('cake_dev', 'Unable to configure the session, setting %s failed.', $setting)); |
| 543 |
} |
| 544 |
} |
| 545 |
} |
| 546 |
} |
| 547 |
if (!empty($sessionConfig['handler']) && !isset($sessionConfig['handler']['engine'])) { |
| 548 |
call_user_func_array('session_set_save_handler', $sessionConfig['handler']); |
| 549 |
} |
| 550 |
if (!empty($sessionConfig['handler']['engine'])) { |
| 551 |
$handler = static::_getHandler($sessionConfig['handler']['engine']); |
| 552 |
session_set_save_handler( |
| 553 |
array($handler, 'open'), |
| 554 |
array($handler, 'close'), |
| 555 |
array($handler, 'read'), |
| 556 |
array($handler, 'write'), |
| 557 |
array($handler, 'destroy'), |
| 558 |
array($handler, 'gc') |
| 559 |
); |
| 560 |
} |
| 561 |
Configure::write('Session', $sessionConfig); |
| 562 |
static::$sessionTime = static::$time + ($sessionConfig['timeout'] * 60); |
| 563 |
} |
| 564 |
|
| 565 |
/**
|
| 566 |
* Get session cookie name.
|
| 567 |
*
|
| 568 |
* @return string
|
| 569 |
*/
|
| 570 |
protected static function _cookieName() { |
| 571 |
if (static::$_cookieName !== null) { |
| 572 |
return static::$_cookieName; |
| 573 |
} |
| 574 |
|
| 575 |
static::init();
|
| 576 |
static::_configureSession();
|
| 577 |
|
| 578 |
return static::$_cookieName = session_name(); |
| 579 |
} |
| 580 |
|
| 581 |
/**
|
| 582 |
* Returns whether a session exists
|
| 583 |
*
|
| 584 |
* @return bool
|
| 585 |
*/
|
| 586 |
protected static function _hasSession() { |
| 587 |
return static::started() || isset($_COOKIE[static::_cookieName()]); |
| 588 |
} |
| 589 |
|
| 590 |
/**
|
| 591 |
* Find the handler class and make sure it implements the correct interface.
|
| 592 |
*
|
| 593 |
* @param string $handler Handler name.
|
| 594 |
* @return void
|
| 595 |
* @throws CakeSessionException
|
| 596 |
*/
|
| 597 |
protected static function _getHandler($handler) { |
| 598 |
list($plugin, $class) = pluginSplit($handler, true); |
| 599 |
App::uses($class, $plugin . 'Model/Datasource/Session'); |
| 600 |
if (!class_exists($class)) { |
| 601 |
throw new CakeSessionException(__d('cake_dev', 'Could not load %s to handle the session.', $class)); |
| 602 |
} |
| 603 |
$handler = new $class(); |
| 604 |
if ($handler instanceof CakeSessionHandlerInterface) { |
| 605 |
return $handler; |
| 606 |
} |
| 607 |
throw new CakeSessionException(__d('cake_dev', 'Chosen SessionHandler does not implement CakeSessionHandlerInterface it cannot be used with an engine key.')); |
| 608 |
} |
| 609 |
|
| 610 |
/**
|
| 611 |
* Get one of the prebaked default session configurations.
|
| 612 |
*
|
| 613 |
* @param string $name Config name.
|
| 614 |
* @return bool|array
|
| 615 |
*/
|
| 616 |
protected static function _defaultConfig($name) { |
| 617 |
$defaults = array( |
| 618 |
'php' => array( |
| 619 |
'cookie' => 'CAKEPHP', |
| 620 |
'timeout' => 240, |
| 621 |
'ini' => array( |
| 622 |
'session.use_trans_sid' => 0, |
| 623 |
'session.cookie_path' => static::$path |
| 624 |
) |
| 625 |
), |
| 626 |
'cake' => array( |
| 627 |
'cookie' => 'CAKEPHP', |
| 628 |
'timeout' => 240, |
| 629 |
'ini' => array( |
| 630 |
'session.use_trans_sid' => 0, |
| 631 |
'url_rewriter.tags' => '', |
| 632 |
'session.serialize_handler' => 'php', |
| 633 |
'session.use_cookies' => 1, |
| 634 |
'session.cookie_path' => static::$path, |
| 635 |
'session.save_path' => TMP . 'sessions', |
| 636 |
'session.save_handler' => 'files' |
| 637 |
) |
| 638 |
), |
| 639 |
'cache' => array( |
| 640 |
'cookie' => 'CAKEPHP', |
| 641 |
'timeout' => 240, |
| 642 |
'ini' => array( |
| 643 |
'session.use_trans_sid' => 0, |
| 644 |
'url_rewriter.tags' => '', |
| 645 |
'session.use_cookies' => 1, |
| 646 |
'session.cookie_path' => static::$path, |
| 647 |
'session.save_handler' => 'user', |
| 648 |
), |
| 649 |
'handler' => array( |
| 650 |
'engine' => 'CacheSession', |
| 651 |
'config' => 'default' |
| 652 |
) |
| 653 |
), |
| 654 |
'database' => array( |
| 655 |
'cookie' => 'CAKEPHP', |
| 656 |
'timeout' => 240, |
| 657 |
'ini' => array( |
| 658 |
'session.use_trans_sid' => 0, |
| 659 |
'url_rewriter.tags' => '', |
| 660 |
'session.use_cookies' => 1, |
| 661 |
'session.cookie_path' => static::$path, |
| 662 |
'session.save_handler' => 'user', |
| 663 |
'session.serialize_handler' => 'php', |
| 664 |
), |
| 665 |
'handler' => array( |
| 666 |
'engine' => 'DatabaseSession', |
| 667 |
'model' => 'Session' |
| 668 |
) |
| 669 |
) |
| 670 |
); |
| 671 |
if (isset($defaults[$name])) { |
| 672 |
return $defaults[$name]; |
| 673 |
} |
| 674 |
return false; |
| 675 |
} |
| 676 |
|
| 677 |
/**
|
| 678 |
* Helper method to start a session
|
| 679 |
*
|
| 680 |
* @return bool Success
|
| 681 |
*/
|
| 682 |
protected static function _startSession() { |
| 683 |
static::init();
|
| 684 |
session_write_close(); |
| 685 |
static::_configureSession();
|
| 686 |
|
| 687 |
if (headers_sent()) { |
| 688 |
if (empty($_SESSION)) { |
| 689 |
$_SESSION = array(); |
| 690 |
} |
| 691 |
} else {
|
| 692 |
// For IE<=8
|
| 693 |
session_cache_limiter("must-revalidate");
|
| 694 |
session_start(); |
| 695 |
} |
| 696 |
return true; |
| 697 |
} |
| 698 |
|
| 699 |
/**
|
| 700 |
* Helper method to create a new session.
|
| 701 |
*
|
| 702 |
* @return void
|
| 703 |
*/
|
| 704 |
protected static function _checkValid() { |
| 705 |
$config = static::read('Config'); |
| 706 |
if ($config) { |
| 707 |
$sessionConfig = Configure::read('Session'); |
| 708 |
|
| 709 |
if (static::valid()) { |
| 710 |
static::write('Config.time', static::$sessionTime); |
| 711 |
if (isset($sessionConfig['autoRegenerate']) && $sessionConfig['autoRegenerate'] === true) { |
| 712 |
$check = $config['countdown']; |
| 713 |
$check -= 1; |
| 714 |
static::write('Config.countdown', $check); |
| 715 |
|
| 716 |
if ($check < 1) { |
| 717 |
static::renew();
|
| 718 |
static::write('Config.countdown', static::$requestCountdown); |
| 719 |
} |
| 720 |
} |
| 721 |
} else {
|
| 722 |
$_SESSION = array(); |
| 723 |
static::destroy();
|
| 724 |
static::_setError(1, 'Session Highjacking Attempted !!!'); |
| 725 |
static::_startSession();
|
| 726 |
static::_writeConfig();
|
| 727 |
} |
| 728 |
} else {
|
| 729 |
static::_writeConfig();
|
| 730 |
} |
| 731 |
} |
| 732 |
|
| 733 |
/**
|
| 734 |
* Writes configuration variables to the session
|
| 735 |
*
|
| 736 |
* @return void
|
| 737 |
*/
|
| 738 |
protected static function _writeConfig() { |
| 739 |
static::write('Config.userAgent', static::$_userAgent); |
| 740 |
static::write('Config.time', static::$sessionTime); |
| 741 |
static::write('Config.countdown', static::$requestCountdown); |
| 742 |
} |
| 743 |
|
| 744 |
/**
|
| 745 |
* Restarts this session.
|
| 746 |
*
|
| 747 |
* @return void
|
| 748 |
*/
|
| 749 |
public static function renew() { |
| 750 |
if (session_id() === '') { |
| 751 |
return;
|
| 752 |
} |
| 753 |
if (isset($_COOKIE[session_name()])) { |
| 754 |
setcookie(Configure::read('Session.cookie'), '', time() - 42000, static::$path); |
| 755 |
} |
| 756 |
session_regenerate_id(true);
|
| 757 |
} |
| 758 |
|
| 759 |
/**
|
| 760 |
* Helper method to set an internal error message.
|
| 761 |
*
|
| 762 |
* @param int $errorNumber Number of the error
|
| 763 |
* @param string $errorMessage Description of the error
|
| 764 |
* @return void
|
| 765 |
*/
|
| 766 |
protected static function _setError($errorNumber, $errorMessage) { |
| 767 |
if (static::$error === false) { |
| 768 |
static::$error = array(); |
| 769 |
} |
| 770 |
static::$error[$errorNumber] = $errorMessage; |
| 771 |
static::$lastError = $errorNumber; |
| 772 |
} |
| 773 |
|
| 774 |
} |