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<?php |
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// +---------------------------------------------------------------------- |
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// | ThinkPHP [ WE CAN DO IT JUST THINK ] |
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// +---------------------------------------------------------------------- |
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// | Copyright (c) 2006~2023 http://thinkphp.cn All rights reserved. |
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// +---------------------------------------------------------------------- |
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// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 ) |
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// +---------------------------------------------------------------------- |
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// | Author: Slince <[email protected]> |
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// +---------------------------------------------------------------------- |
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declare(strict_types=1); |
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namespace think; |
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use Closure; |
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use LogicException; |
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use think\exception\Handle; |
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use Throwable; |
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/** |
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* 中间件管理类 |
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* @package think |
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*/ |
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class Middleware |
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{ |
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/** |
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* 中间件执行队列 |
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* @var array |
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*/ |
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protected $queue = []; |
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public function __construct(protected App $app) |
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{ |
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} |
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/** |
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* 导入中间件 |
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* @access public |
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* @param array $middlewares |
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* @param string $type 中间件类型 |
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* @return void |
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*/ |
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public function import(array $middlewares = [], string $type = 'global'): void |
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{ |
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foreach ($middlewares as $middleware) { |
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$this->add($middleware, $type); |
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} |
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} |
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/** |
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* 注册中间件 |
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* @access public |
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* @param mixed $middleware |
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* @param string $type 中间件类型 |
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* @return void |
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*/ |
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public function add(array|string|Closure $middleware, string $type = 'global'): void |
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{ |
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$middleware = $this->buildMiddleware($middleware, $type); |
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if (!empty($middleware)) { |
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$this->queue[$type][] = $middleware; |
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$this->queue[$type] = array_unique($this->queue[$type], SORT_REGULAR); |
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} |
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} |
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/** |
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* 注册路由中间件 |
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* @access public |
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* @param mixed $middleware |
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* @return void |
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*/ |
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public function route(array|string|Closure $middleware): void |
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{ |
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$this->add($middleware, 'route'); |
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} |
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/** |
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* 注册控制器中间件 |
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* @access public |
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* @param mixed $middleware |
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* @return void |
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*/ |
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public function controller(array|string|Closure $middleware): void |
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{ |
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$this->add($middleware, 'controller'); |
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} |
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/** |
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* 注册中间件到开始位置 |
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* @access public |
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* @param mixed $middleware |
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* @param string $type 中间件类型 |
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*/ |
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public function unshift(array|string|Closure $middleware, string $type = 'global') |
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{ |
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$middleware = $this->buildMiddleware($middleware, $type); |
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if (!empty($middleware)) { |
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if (!isset($this->queue[$type])) { |
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$this->queue[$type] = []; |
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} |
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array_unshift($this->queue[$type], $middleware); |
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} |
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} |
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/** |
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* 获取注册的中间件 |
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* @access public |
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* @param string $type 中间件类型 |
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* @return array |
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*/ |
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public function all(string $type = 'global'): array |
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{ |
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return $this->queue[$type] ?? []; |
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} |
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/** |
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* 调度管道 |
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* @access public |
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* @param string $type 中间件类型 |
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* @return Pipeline |
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*/ |
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public function pipeline(string $type = 'global') |
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{ |
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return (new Pipeline()) |
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->through(array_map(function ($middleware) { |
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return function ($request, $next) use ($middleware) { |
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[$call, $params] = $middleware; |
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if (is_array($call) && is_string($call[0])) { |
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$call = [$this->app->make($call[0]), $call[1]]; |
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} |
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$response = call_user_func($call, $request, $next, ...$params); |
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if (!$response instanceof Response) { |
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throw new LogicException('The middleware must return Response instance'); |
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} |
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return $response; |
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}; |
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}, $this->sortMiddleware($this->queue[$type] ?? []))) |
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->whenException([$this, 'handleException']); |
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} |
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/** |
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* 结束调度 |
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* @param Response $response |
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*/ |
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public function end(Response $response) |
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{ |
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foreach ($this->queue as $queue) { |
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foreach ($queue as $middleware) { |
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[$call] = $middleware; |
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if (is_array($call) && is_string($call[0])) { |
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$instance = $this->app->make($call[0]); |
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if (method_exists($instance, 'end')) { |
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$instance->end($response); |
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} |
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} |
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} |
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} |
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} |
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/** |
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* 异常处理 |
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* @param Request $passable |
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* @param Throwable $e |
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* @return Response |
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*/ |
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public function handleException($passable, Throwable $e) |
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{ |
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/** @var Handle $handler */ |
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$handler = $this->app->make(Handle::class); |
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$handler->report($e); |
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return $handler->render($passable, $e); |
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} |
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/** |
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* 解析中间件 |
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* @access protected |
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* @param array|string|Closure $middleware |
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* @param string $type 中间件类型 |
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* @return array |
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*/ |
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protected function buildMiddleware(array|string|Closure $middleware, string $type): array |
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{ |
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if (empty($middleware)) { |
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return []; |
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} |
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if (is_array($middleware)) { |
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[$middleware, $params] = $middleware; |
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} |
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if ($middleware instanceof Closure) { |
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return [$middleware, $params ?? []]; |
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} |
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//中间件别名检查 |
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$alias = $this->app->config->get('middleware.alias', []); |
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if (isset($alias[$middleware])) { |
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$middleware = $alias[$middleware]; |
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} |
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if (is_array($middleware)) { |
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$this->import($middleware, $type); |
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return []; |
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} |
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return [[$middleware, 'handle'], $params ?? []]; |
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} |
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/** |
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* 中间件排序 |
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* @param array $middlewares |
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* @return array |
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*/ |
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protected function sortMiddleware(array $middlewares) |
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{ |
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$priority = $this->app->config->get('middleware.priority', []); |
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uasort($middlewares, function ($a, $b) use ($priority) { |
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$aPriority = $this->getMiddlewarePriority($priority, $a); |
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$bPriority = $this->getMiddlewarePriority($priority, $b); |
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return $bPriority - $aPriority; |
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}); |
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return $middlewares; |
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} |
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/** |
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* 获取中间件优先级 |
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* @param $priority |
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* @param $middleware |
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* @return int |
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*/ |
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protected function getMiddlewarePriority($priority, $middleware) |
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{ |
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[$call] = $middleware; |
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if (is_array($call) && is_string($call[0])) { |
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$index = array_search($call[0], array_reverse($priority)); |
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return false === $index ? -1 : $index; |
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} |
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return -1; |
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} |
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} |
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framework
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