项目初始化-中间件封装

```php
<?php

namespace app\middleware;

use lib\exception\ApiException;
use app\model\AppModel;
use ReflectionClass;
use support\Log;
use Webman\Http\Request;
use Webman\Http\Response;
use Webman\MiddlewareInterface;

/**
 * @desc  全局中间件
 */
class api implements MiddlewareInterface
{

public function process(Request $request, callable $handler) : Response
    {
        $return = [
            'code' => 500,
            'msg'  => ''
        ];
        // 创建一个反射类
        $reflectionClass   = new ReflectionClass($request->controller);
        $noCheck       = $reflectionClass->getDefaultProperties()['noCheck'] ?? true; //默认需要验证
        $checkAction   = $reflectionClass->getDefaultProperties()['checkAction'] ?? []; //需要验证的方法集合

// 接口鉴权
        if ( !$noCheck || in_array($request->action, $checkAction)) {
            $sign = $this->check($request);
            if($sign !== true) {
                $return['msg'] = $sign;
                Log::info($sign,$request->all());
                return json($return);
            }
        }

$reflectionMethod = $reflectionClass->getMethod($request->action); // 获取方法的反射
        $methodParameters = $reflectionMethod->getParameters(); // 获取方法的参数

$paramsArray = []; //所有参数
        foreach ($methodParameters as $parameter) {
            $paramName = $parameter->getName();
            $paramValue = $request->input($paramName);
            if ($paramValue === null || $paramValue === '')  {
                if (!$parameter->isDefaultValueAvailable()) {
                    // 如果方法参数没有默认值
                    $return['msg'] =  '缺少必要参数: ' . $paramName;
                    return json($return);
                } else {
                    $paramsArray[] = $parameter->getDefaultValue();  // 使用方法参数的默认值
                }
            } else {
                $paramsArray[] = $paramValue; // 使用从请求中获取的参数值
            }
        }
        // 调用方法并传递参数
        try {
            $res = $reflectionMethod->invokeArgs($reflectionClass->newInstance(), $paramsArray);
            # 特殊返回  redirect_uri代表重定向，header代表输出图片，其他正常返回
            if(!empty($res['redirect_uri'])) {
                return redirect($res['redirect_uri']);
            } else if (!empty($res['header'])) {
                return \response($res['res'])->header('Content-Type', $res['header']);
            } else {
                $return['code'] = 200;
                $return['data'] = $res;
            }
        } catch (ApiException $e) {
            $return['line']  = $e->getLine();
            $return['msg']   = $e->getMessage();
            $return['file']  = $e->getFile();
            Log::error($e->getMessage(),[$request->all(),$return]);
        } catch (\Exception $e) {
            // 处理异常，你可以将异常信息记录到日志或返回适当的错误响应
            $return['file']  = $e->getFile();
            $return['line']  = $e->getLine();
            $return['msg']   = $e->getMessage();
            $return['trace'] = $e->getTraceAsString();
            Log::error($e->getMessage(),[$request->all(),$return]);
        }
        return json($return);
    }

/**
     * @desc 鉴权
     * @param $token
     * @return true
     */
    public function check(Request $request)
    {
        if(!empty($request->header('Authorization')) || in_array($request->header('origin'),['http://127.0.0.1:8789',getenv('DOMAIN')])) {
            return $this->checkAuth($request->header('Authorization'));
        } else {
            return $this->checkApp($request);
        }
    }

/**
     * token鉴权
     * @param $token
     * @return true
     */
    public function checkAuth($token)
    {
        return true;
    }

/**
     * 第三方鉴权
     * @param Request $request
     * @return string|true
     * @throws \think\db\exception\DataNotFoundException
     * @throws \think\db\exception\DbException
     * @throws \think\db\exception\ModelNotFoundException
     */
    public function checkApp(Request $request)
    {
        $param = $request->all();
        if(empty($param['app_id']))  return '缺少app_id';
        if(empty($param['timestamp'])) return '缺少timestamp';

$timeDiff = time() - $param['timestamp'];
        if($timeDiff > 120 || $timeDiff < 120)  return '请求超时';

$appSecret = AppModel::where('app_id',$param['app_id'])->find();
        if(empty($appSecret) || $appSecret->is_del == 2) return '应用不存在';
        if($appSecret->status !== 1) return '应用已禁用';

$sign =  $param['sign'];
        unset($param['sign']);

$str = '';
        ksort($param);
        foreach ($param as $k => $v) {
            if (is_array($v)) {
                $str .= $k . '=' . json_encode($v) . '&';
            } elseif (is_bool($v)) {
                $str .= $k . '=' . ($v ? "true" : "false") . '&';
            } elseif($v) {
                $str .= $k . '=' . $v . '&';
            }
        }
        $sign2 =  md5($str . $appSecret->app_secret);
        if($sign === $sign2){
            return true;
        } else {
            return '签名错误';
        }
    }
}
```