发送/根触发检查条件之前的Laravel 5.2

<?php

namespace App\Http\Middleware;

use Closure;

class CheckConditionMiddleware
{
    public function handle($request, Closure $next)
    {
        // 检查条件是否满足
        if ($this->conditionIsMet()) {
            return $next($request);
        }
        
        // 条件不满足，返回错误信息
        return response('条件不满足', 403);
    }
    
    private function conditionIsMet()
    {
        // 检查条件的具体逻辑
        // 返回 true 表示条件满足，返回 false 表示条件不满足
    }
}

protected $routeMiddleware = [
    // 其他中间件...
    'check.condition' => \App\Http\Middleware\CheckConditionMiddleware::class,
];

Route::post('/user', 'UserController@store')->middleware('check.condition');