workapi/app/Http/Middleware/CheckU8.php

<?php

namespace App\Http\Middleware;

use Closure;
use Illuminate\Http\Request;

class CheckU8
{
    /**
     * Handle an incoming request.
     *
     * @param  Request  $request
     * @param Closure $next
     * @return mixed
     */
    public function handle($request, Closure $next)
    {
        $site = $request->header('Site');
        if(empty($site)) return response()->json(['code'=>201,'msg'=>'缺少站点信息','data'=>null]);

        $config = config("u");
        if(! isset($config[$site])) return response()->json(['code'=>201,'msg'=>'站点：' . $site . '暂未配置，请联系管理员','data'=>null]);
        $site_array = $config[$site];
        if(empty($site_array['api_host'])) return response()->json(['code'=>201,'msg'=>'站点：' . $site . '下用友对外域名暂未配置，请联系管理员','data'=>null]);
        if(empty($site_array['api_port'])) return response()->json(['code'=>201,'msg'=>'站点：' . $site . '下用友对外域名端口暂未配置，请联系管理员','data'=>null]);

        $request->common_param = [
            'site' => $site,
            'api_host' => $site_array['api_host'],
            'api_port' => $site_array['api_port'],
        ];

        return $next($request);
    }
}