top-think /
framework
| Total Complexity | 79 |
| Total Lines | 486 |
| Duplicated Lines | 0 % |
| Changes | 0 | ||
Complex classes like Session often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Session, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
||
| 17 | class Session |
||
|
1 ignored issue
–
show
|
|||
| 18 | { |
||
| 19 | /** |
||
| 20 | * 配置参数 |
||
| 21 | * @var array |
||
| 22 | */ |
||
| 23 | protected $config = []; |
||
| 24 | |||
| 25 | /** |
||
| 26 | * Session数据 |
||
| 27 | * @var array |
||
| 28 | */ |
||
| 29 | protected $data = []; |
||
| 30 | |||
| 31 | /** |
||
| 32 | * 是否初始化 |
||
| 33 | * @var bool |
||
| 34 | */ |
||
| 35 | protected $init = null; |
||
| 36 | |||
| 37 | /** |
||
| 38 | * 锁驱动 |
||
| 39 | * @var object |
||
| 40 | */ |
||
| 41 | protected $lockDriver = null; |
||
| 42 | |||
| 43 | /** |
||
| 44 | * 锁key |
||
| 45 | * @var string |
||
| 46 | */ |
||
| 47 | protected $sessKey = 'PHPSESSID'; |
||
| 48 | |||
| 49 | /** |
||
| 50 | * 锁超时时间 |
||
| 51 | * @var integer |
||
| 52 | */ |
||
| 53 | protected $lockTimeout = 3; |
||
| 54 | |||
| 55 | /** |
||
| 56 | * 是否启用锁机制 |
||
| 57 | * @var bool |
||
| 58 | */ |
||
| 59 | protected $lock = false; |
||
| 60 | |||
| 61 | /** |
||
| 62 | * App实例 |
||
| 63 | * @var App |
||
| 64 | */ |
||
| 65 | protected $app; |
||
| 66 | |||
| 67 | public function __construct(App $app, array $config = []) |
||
| 68 | { |
||
| 69 | $this->config = $config; |
||
| 70 | $this->app = $app; |
||
| 71 | } |
||
| 72 | |||
| 73 | public static function __make(App $app, Config $config) |
||
|
1 ignored issue
–
show
|
|||
| 74 | { |
||
| 75 | return new static($app, $config->get('session')); |
||
| 76 | } |
||
| 77 | |||
| 78 | /** |
||
| 79 | * 配置 |
||
| 80 | * @access public |
||
| 81 | * @param array $config |
||
| 82 | * @return void |
||
| 83 | */ |
||
| 84 | public function setConfig(array $config = []): void |
||
| 85 | { |
||
| 86 | $this->config = array_merge($this->config, array_change_key_case($config)); |
||
| 87 | |||
| 88 | if (isset($config['use_lock'])) { |
||
| 89 | $this->lock = $config['use_lock']; |
||
| 90 | } |
||
| 91 | } |
||
| 92 | |||
| 93 | /** |
||
| 94 | * 设置数据 |
||
| 95 | * @access public |
||
| 96 | * @param array $data |
||
| 97 | * @return void |
||
| 98 | */ |
||
| 99 | public function setData(array $data): void |
||
| 100 | { |
||
| 101 | $this->data = $data; |
||
| 102 | } |
||
| 103 | |||
| 104 | /** |
||
| 105 | * session初始化 |
||
| 106 | * @access public |
||
| 107 | * @return void |
||
| 108 | * @throws \think\Exception |
||
| 109 | */ |
||
| 110 | public function init(): void |
||
| 111 | { |
||
| 112 | $config = $this->config; |
||
| 113 | |||
| 114 | if (isset($config['use_lock'])) { |
||
| 115 | $this->lock = $config['use_lock']; |
||
| 116 | } |
||
| 117 | |||
| 118 | if (isset($config['var_session_id']) && isset($_REQUEST[$config['var_session_id']])) { |
||
| 119 | session_id($_REQUEST[$config['var_session_id']]); |
||
| 120 | } elseif (!empty($config['id'])) { |
||
| 121 | session_id($config['id']); |
||
| 122 | } |
||
| 123 | |||
| 124 | if (!empty($config['type'])) { |
||
| 125 | // 读取session驱动 |
||
| 126 | $class = false !== strpos($config['type'], '\\') ? $config['type'] : '\\think\\session\\driver\\' . ucwords($config['type']); |
||
| 127 | |||
| 128 | // 检查驱动类 |
||
| 129 | if (!class_exists($class) || !session_set_save_handler(new $class($config))) { |
||
| 130 | throw new ClassNotFoundException('error session handler:' . $class, $class); |
||
| 131 | } |
||
| 132 | } |
||
| 133 | |||
| 134 | if (!empty($config['auto_start'])) { |
||
| 135 | try { |
||
| 136 | session_start($config['options'] ?? []); |
||
| 137 | } catch (\Exception $e) { |
||
| 138 | } |
||
| 139 | |||
| 140 | if (empty($this->data)) { |
||
| 141 | $this->data = $_SESSION; |
||
| 142 | } |
||
| 143 | |||
| 144 | $this->init = true; |
||
| 145 | } else { |
||
| 146 | $this->init = false; |
||
| 147 | } |
||
| 148 | } |
||
| 149 | |||
| 150 | /** |
||
| 151 | * session自动启动或者初始化 |
||
| 152 | * @access public |
||
| 153 | * @return void |
||
| 154 | */ |
||
| 155 | public function boot(): void |
||
| 156 | { |
||
| 157 | if (is_null($this->init)) { |
||
| 158 | $this->init(); |
||
| 159 | } |
||
| 160 | |||
| 161 | if (false === $this->init) { |
||
| 162 | if (PHP_SESSION_ACTIVE != session_status()) { |
||
| 163 | session_start(); |
||
| 164 | } |
||
| 165 | $this->init = true; |
||
| 166 | } |
||
| 167 | } |
||
| 168 | |||
| 169 | /** |
||
| 170 | * session设置 |
||
| 171 | * @access public |
||
| 172 | * @param string $name session名称 |
||
| 173 | * @param mixed $value session值 |
||
| 174 | * @return void |
||
| 175 | */ |
||
| 176 | public function set(string $name, $value): void |
||
| 177 | { |
||
| 178 | $this->lock(); |
||
| 179 | |||
| 180 | empty($this->init) && $this->boot(); |
||
| 181 | |||
| 182 | if (strpos($name, '.')) { |
||
| 183 | // 二维数组赋值 |
||
| 184 | list($name1, $name2) = explode('.', $name); |
||
| 185 | |||
| 186 | $this->data[$name1][$name2] = $value; |
||
| 187 | } else { |
||
| 188 | $this->data[$name] = $value; |
||
| 189 | } |
||
| 190 | |||
| 191 | $this->unlock(); |
||
| 192 | } |
||
| 193 | |||
| 194 | /** |
||
| 195 | * session获取 |
||
| 196 | * @access public |
||
| 197 | * @param string $name session名称 |
||
| 198 | * @param mixed $default 默认值 |
||
| 199 | * @return mixed |
||
| 200 | */ |
||
| 201 | public function get(string $name = '', $default = null) |
||
| 202 | { |
||
| 203 | $this->lock(); |
||
| 204 | |||
| 205 | empty($this->init) && $this->boot(); |
||
| 206 | |||
| 207 | $value = $this->data; |
||
| 208 | |||
| 209 | if ('' != $name) { |
||
| 210 | $name = explode('.', $name); |
||
| 211 | |||
| 212 | foreach ($name as $val) { |
||
| 213 | if (isset($value[$val])) { |
||
| 214 | $value = $value[$val]; |
||
| 215 | } else { |
||
| 216 | $value = $default; |
||
| 217 | break; |
||
| 218 | } |
||
| 219 | } |
||
| 220 | } |
||
| 221 | |||
| 222 | $this->unlock(); |
||
| 223 | |||
| 224 | return $value; |
||
| 225 | } |
||
| 226 | |||
| 227 | /** |
||
| 228 | * session 读写锁驱动实例化 |
||
| 229 | */ |
||
| 230 | protected function initDriver(): void |
||
| 231 | { |
||
| 232 | // 不在 init 方法中实例化lockDriver，是因为 init 方法不一定先于 set 或 get 方法调用 |
||
| 233 | $config = $this->config; |
||
| 234 | |||
| 235 | if (!empty($config['type']) && !empty($config['use_lock'])) { |
||
| 236 | // 读取session驱动 |
||
| 237 | $class = false !== strpos($config['type'], '\\') ? $config['type'] : '\\think\\session\\driver\\' . ucwords($config['type']); |
||
| 238 | |||
| 239 | // 检查驱动类及类中是否存在 lock 和 unlock 函数 |
||
| 240 | if (class_exists($class) && method_exists($class, 'lock') && method_exists($class, 'unlock')) { |
||
| 241 | $this->lockDriver = new $class($config); |
||
| 242 | } |
||
| 243 | } |
||
| 244 | |||
| 245 | // 通过cookie获得session_id |
||
| 246 | if (!empty($config['name'])) { |
||
| 247 | $this->sessKey = $config['name']; |
||
| 248 | } |
||
| 249 | |||
| 250 | if (isset($config['lock_timeout']) && $config['lock_timeout'] > 0) { |
||
| 251 | $this->lockTimeout = $config['lock_timeout']; |
||
| 252 | } |
||
| 253 | } |
||
| 254 | |||
| 255 | /** |
||
| 256 | * session 读写加锁 |
||
| 257 | * @access protected |
||
| 258 | * @return void |
||
| 259 | */ |
||
| 260 | protected function lock() |
||
| 261 | { |
||
| 262 | if (empty($this->lock)) { |
||
| 263 | return; |
||
| 264 | } |
||
| 265 | |||
| 266 | $this->initDriver(); |
||
| 267 | |||
| 268 | if (null !== $this->lockDriver && method_exists($this->lockDriver, 'lock')) { |
||
| 269 | $t = time(); |
||
| 270 | // 使用 session_id 作为互斥条件，即只对同一 session_id 的会话互斥。第一次请求没有 session_id |
||
| 271 | $sessID = $this->app->cookie->get($this->sessKey) ?: ''; |
||
| 272 | |||
| 273 | do { |
||
| 274 | if (time() - $t > $this->lockTimeout) { |
||
| 275 | $this->unlock(); |
||
| 276 | } |
||
| 277 | } while (!$this->lockDriver->lock($sessID, $this->lockTimeout)); |
||
| 278 | } |
||
| 279 | } |
||
| 280 | |||
| 281 | /** |
||
| 282 | * session 读写解锁 |
||
| 283 | * @access protected |
||
| 284 | * @return void |
||
| 285 | */ |
||
| 286 | protected function unlock() |
||
| 287 | { |
||
| 288 | if (empty($this->lock)) { |
||
| 289 | return; |
||
| 290 | } |
||
| 291 | |||
| 292 | $this->pause(); |
||
| 293 | |||
| 294 | if ($this->lockDriver && method_exists($this->lockDriver, 'unlock')) { |
||
| 295 | $sessID = $this->app->cookie->get($this->sessKey) ?: ''; |
||
| 296 | $this->lockDriver->unlock($sessID); |
||
| 297 | } |
||
| 298 | } |
||
| 299 | |||
| 300 | /** |
||
| 301 | * session获取并删除 |
||
| 302 | * @access public |
||
| 303 | * @param string $name session名称 |
||
| 304 | * @return mixed |
||
| 305 | */ |
||
| 306 | public function pull(string $name) |
||
| 307 | { |
||
| 308 | $result = $this->get($name); |
||
| 309 | |||
| 310 | if ($result) { |
||
| 311 | $this->delete($name); |
||
| 312 | return $result; |
||
| 313 | } |
||
| 314 | } |
||
| 315 | |||
| 316 | /** |
||
| 317 | * session设置 下一次请求有效 |
||
| 318 | * @access public |
||
| 319 | * @param string $name session名称 |
||
| 320 | * @param mixed $value session值 |
||
| 321 | * @return void |
||
| 322 | */ |
||
| 323 | public function flash(string $name, $value): void |
||
| 324 | { |
||
| 325 | $this->set($name, $value); |
||
| 326 | |||
| 327 | if (!$this->has('__flash__.__time__')) { |
||
| 328 | $this->set('__flash__.__time__', $_SERVER['REQUEST_TIME_FLOAT']); |
||
| 329 | } |
||
| 330 | |||
| 331 | $this->push('__flash__', $name); |
||
| 332 | } |
||
| 333 | |||
| 334 | /** |
||
| 335 | * 清空当前请求的session数据 |
||
| 336 | * @access public |
||
| 337 | * @return void |
||
| 338 | */ |
||
| 339 | public function flush() |
||
| 340 | { |
||
| 341 | if (!$this->init) { |
||
| 342 | return; |
||
| 343 | } |
||
| 344 | |||
| 345 | $item = $this->get('__flash__'); |
||
| 346 | |||
| 347 | if (!empty($item)) { |
||
| 348 | $time = $item['__time__']; |
||
| 349 | |||
| 350 | if ($_SERVER['REQUEST_TIME_FLOAT'] > $time) { |
||
| 351 | unset($item['__time__']); |
||
| 352 | $this->delete($item); |
||
| 353 | $this->set('__flash__', []); |
||
| 354 | } |
||
| 355 | } |
||
| 356 | } |
||
| 357 | |||
| 358 | /** |
||
| 359 | * 删除session数据 |
||
| 360 | * @access public |
||
| 361 | * @param string|array $name session名称 |
||
| 362 | * @return void |
||
| 363 | */ |
||
| 364 | public function delete($name): void |
||
| 365 | { |
||
| 366 | empty($this->init) && $this->boot(); |
||
| 367 | |||
| 368 | if (is_array($name)) { |
||
| 369 | foreach ($name as $key) { |
||
| 370 | $this->delete($key); |
||
| 371 | } |
||
| 372 | } elseif (strpos($name, '.')) { |
||
| 373 | list($name1, $name2) = explode('.', $name); |
||
| 374 | |||
| 375 | unset($this->data[$name1][$name2]); |
||
| 376 | } else { |
||
| 377 | unset($this->data[$name]); |
||
| 378 | } |
||
| 379 | } |
||
| 380 | |||
| 381 | /** |
||
| 382 | * 清空session数据 |
||
| 383 | * @access public |
||
| 384 | * @return void |
||
| 385 | */ |
||
| 386 | public function clear(): void |
||
| 387 | { |
||
| 388 | empty($this->init) && $this->boot(); |
||
| 389 | |||
| 390 | $this->data = []; |
||
| 391 | } |
||
| 392 | |||
| 393 | /** |
||
| 394 | * 判断session数据 |
||
| 395 | * @access public |
||
| 396 | * @param string $name session名称 |
||
| 397 | * @return bool |
||
| 398 | */ |
||
| 399 | public function has(string $name): bool |
||
| 400 | { |
||
| 401 | empty($this->init) && $this->boot(); |
||
| 402 | |||
| 403 | $value = $this->data; |
||
| 404 | |||
| 405 | $name = explode('.', $name); |
||
| 406 | |||
| 407 | foreach ($name as $val) { |
||
| 408 | if (!isset($value[$val])) { |
||
| 409 | return false; |
||
| 410 | } else { |
||
| 411 | $value = $value[$val]; |
||
| 412 | } |
||
| 413 | } |
||
| 414 | |||
| 415 | return true; |
||
| 416 | } |
||
| 417 | |||
| 418 | /** |
||
| 419 | * 添加数据到一个session数组 |
||
| 420 | * @access public |
||
| 421 | * @param string $key |
||
| 422 | * @param mixed $value |
||
| 423 | * @return void |
||
| 424 | */ |
||
| 425 | public function push(string $key, $value): void |
||
| 426 | { |
||
| 427 | $array = $this->get($key); |
||
| 428 | |||
| 429 | if (is_null($array)) { |
||
| 430 | $array = []; |
||
| 431 | } |
||
| 432 | |||
| 433 | $array[] = $value; |
||
| 434 | |||
| 435 | $this->set($key, $array); |
||
| 436 | } |
||
| 437 | |||
| 438 | /** |
||
| 439 | * 启动session |
||
| 440 | * @access public |
||
| 441 | * @return void |
||
| 442 | */ |
||
| 443 | public function start(): void |
||
| 444 | { |
||
| 445 | session_start(); |
||
| 446 | |||
| 447 | if (empty($this->data)) { |
||
| 448 | $this->data = $_SESSION; |
||
| 449 | } |
||
| 450 | |||
| 451 | $this->init = true; |
||
| 452 | } |
||
| 453 | |||
| 454 | /** |
||
| 455 | * 销毁session |
||
| 456 | * @access public |
||
| 457 | * @return void |
||
| 458 | */ |
||
| 459 | public function destroy(): void |
||
| 460 | { |
||
| 461 | if (!empty($this->data)) { |
||
| 462 | $this->data = []; |
||
| 463 | } |
||
| 464 | |||
| 465 | session_unset(); |
||
| 466 | session_destroy(); |
||
| 467 | |||
| 468 | $this->init = null; |
||
| 469 | $this->lockDriver = null; |
||
| 470 | } |
||
| 471 | |||
| 472 | /** |
||
| 473 | * 重新生成session_id |
||
| 474 | * @access public |
||
| 475 | * @param bool $delete 是否删除关联会话文件 |
||
| 476 | * @return string |
||
| 477 | */ |
||
| 478 | public function regenerate(bool $delete = false): string |
||
| 479 | { |
||
| 480 | session_regenerate_id($delete); |
||
| 481 | return session_id(); |
||
| 482 | } |
||
| 483 | |||
| 484 | /** |
||
| 485 | * 暂停session |
||
| 486 | * @access public |
||
| 487 | * @return void |
||
| 488 | */ |
||
| 489 | public function pause(): void |
||
| 494 | } |
||
| 495 | |||
| 496 | /** |
||
| 497 | * 析构方法 |
||
| 498 | * @access public |
||
| 499 | */ |
||
| 500 | public function __destruct() |
||
| 501 | { |
||
| 502 | $_SESSION = $this->data; |
||
| 503 | } |
||
| 504 | } |
||
| 505 |
Loading history...
