原创:【ajax | axios跨域简单请求+复杂请求】自定义header头Token请求Laravel5后台【亲测可用】

如标题:我想在ajax的header头增加自定义Token进行跨域api认证并调用,api使用laravel5编写,如何实现?

首先,了解下CORS简单请求和复杂请求。

     -- CORS简单请求 --

链接:https://developer.mozilla.org/zh-CN/docs/Web/HTTP/Access_control_CORS

 

 

 

1、ajax跨域,使用CORS方式  --  (ajax跨域会自动提交origin字段,用户不可伪造)

2、HTML的js:

</body>
<script type="text/javascript">
    $(function(){
        $(document).on("click", ".btn-all2", function(){
            $.ajax({
                url:"http://t-local.*****.com/wechat/auth/up?call_back=http%3A%2F%2Ftest.*****.com%2Findex.php%3Fg%3DWeixin%26m%3DWeixin%26a%3Dindex",
                dataType:"json",
                type:"get", //origin字段不允许自定义伪造;跨域请求浏览器自动带上origin

                // 允许携带cookie凭证
                xhrFields: { withCredentials: true },
                // 允许跨域
                crossDomain: true,

                success:function(data){
                    console.log('success');
                    console.log(JSON.stringify(data));
                },
                error: function(data){
                    console.log('error');
                    console.log(JSON.stringify(data));
                }
            })
        })
    })
</script>
</html>

laravel5后台ajax请求过滤中间件: -- laravel 5 用来处理【简单请求】或者【复杂请求的第二次请求】

//跨域XML请求,会自动带上http_origin字段
public function handle( $request, Closure $next )
    {
        $origin = isset($_SERVER['HTTP_ORIGIN'])? $_SERVER['HTTP_ORIGIN'] : '';
        $allow_origin = Config::get('app.allow_origin');
        $allow_origin_dynamic = Config::get('app.allow_origin_dynamic');


        $allowOrigin = false;
        if ( in_array( $origin, $allow_origin ))
        {
            $allowOrigin = true;
        } else {
            foreach ( $allow_origin_dynamic as $item )
            {
                if ( strpos( $origin, $item ) !== false )
                {
                    $allowOrigin = true;
                    break;
                }
            }
        }
        if ( $allowOrigin )
        {
            header('Access-Control-Allow-Origin: '.$origin);
            header('Access-Control-Allow-Methods:POST,GET,OPTIONS,PUT,DELETE');
            header('Access-Control-Allow-Headers:x-requested-with,content-type');
            header('Access-Control-Allow-Credentials:true');
        }
        return $next($request);

    }

 

 

    ------  CORS复杂请求   --------

链接:https://developer.mozilla.org/zh-CN/docs/Web/HTTP/Access_control_CORS

 

复杂请求 =【预请求 + 简单请求】;

一次XMLHttpRequest会发送两次请求,一次options、一次自定义的请求

那么在TP5中,我们可以使用行为扩展处理ajax|axios 带自定义头token的CORS请求,在laravel5中怎样解决呢?

laravel5 解决方案:

1、域名一:local.domian.com前端发起跨域ajax请求:访问laravel5的t-local.domian.com域名二

<script type="text/javascript">
    $(function(){
        $(document).on("click", ".btn-all2", function(){
            $.ajax({
                url:"http://t-local.****.com/api/wechat/auth/up?call_back=http%3A%2F%2Ftest.****.com%2Findex.php%3Fg%3DWeixin%26m%3DWeixin%26a%3Dindex",
                dataType:"json",
                type:"get", 

                //origin字段不允许自定义伪造;跨域请求浏览器自动带上origin


                //自定义请求头认证token
                headers: { 'token' : "2211zxz" },

                // 允许携带cookie凭证
                xhrFields: { withCredentials: true },
                // 允许跨域
                crossDomain: true,

                success:function(data){
                    console.log('success');
                    console.log(JSON.stringify(data));
                },
                error: function(data){
                    console.log('error');
                    console.log(JSON.stringify(data));
                }
            })
        })
    })
</script>

 

2、在laravel的route/api.php路由文件,增加以下路由规则:

/**
* laravel5发送复杂cors请求,类似jwt、自定义请求头token等,会先发送预请求options
* @param : 预请求options的【Access-Control-Allow-Origin:】绝对不可以设置成*,否则报错
* @return : code 200
* date: 2019年10月30日下午2:29:50
* author: xzz
*/
Route::options('/{all}',function () {
    //file_put_contents(storage_path('logs/SERVER_Header.txt'), 'array = ' . var_export(request()->header(), true) . PHP_EOL, FILE_APPEND);
    //file_put_contents(storage_path('logs/SERVER_Header.txt'), 'string' . var_export(request()->header('ORIGIN'), true) . PHP_EOL, FILE_APPEND);
    $origin = request()->header('ORIGIN')??request()->header('HTTP_ORIGIN');
    
    header("Access-Control-Allow-Origin: $origin");
    header("Access-Control-Allow-Credentials: true");
    header('Access-Control-Allow-Methods: POST, GET, OPTIONS, PUT, DELETE');
    header('Access-Control-Allow-Headers: Origin, Access-Control-Request-Headers, SERVER_NAME, Access-Control-Allow-Headers, cache-control, token, X-Requested-With, Content-Type, Accept, Connection, User-Agent');
})->where(['all' => '([a-zA-Z0-9-]|/)*']);

 

3、返回前端F12打开,发现options请求已通过:

 

 

4、在创建一个【ajax简单请求】验证中间件(如果是简单请求,上面都可以省略),App\Middleware\AjaxHeader.php,kernel.php注册在api里面

<?php

namespace App\Http\Middleware;

use Closure;
use Illuminate\Support\Facades\{Config};

class AjaxHeader
{
    /**
     * @param $request
     * @param Closure $next
     * @return mixed
     */
    public function handle( $request, Closure $next )
    {
        file_put_contents(storage_path('logs/1.txt'), var_export($_SERVER, true) . PHP_EOL, FILE_APPEND);
        file_put_contents(storage_path('logs/SERVER_HeaderReal.txt'), 'array = ' . var_export(request()->header(), true) . PHP_EOL, FILE_APPEND);
        file_put_contents(storage_path('logs/SERVER_HeaderReal.txt'), 'string' . var_export(request()->header('ORIGIN'), true) . PHP_EOL, FILE_APPEND);
        
        $origin = isset($_SERVER['HTTP_ORIGIN'])? $_SERVER['HTTP_ORIGIN'] : '';
        $allow_origin = Config::get('app.allow_origin');
        $allow_origin_dynamic = Config::get('app.allow_origin_dynamic');


        $allowOrigin = false;
        if ( in_array( $origin, $allow_origin ))
        {
            $allowOrigin = true;
        } else {
            foreach ( $allow_origin_dynamic as $item )
            {
                if ( strpos( $origin, $item ) !== false )
                {
                    $allowOrigin = true;
                    break;
                }
            }
        }
        if ( $allowOrigin )
        {
            header('Access-Control-Allow-Origin: '.$origin);
            header('Access-Control-Allow-Methods:POST,GET,OPTIONS,PUT,DELETE');
            header('Access-Control-Allow-Headers:x-requested-with,content-type,token');
            header('Access-Control-Allow-Credentials:true');
        }
        return $next($request);
/*        return $next($request)-> header('Access-Control-Allow-Origin', '*')
        -> header('Access-Control-Allow-Methods', 'POST,GET,OPTIONS,PUT,DELETE')
        -> header('Access-Control-Allow-Headers', 'Content-Type,Accept,Authorization,X-Requested-With');*/
    }
}

 

5、上面注册的api中间件绑定到t-local的api/wechat/xxx路由上,从local域名发起访问t-local域名,发现get请求也成功返回了json数据

 

 

返回的json数据:数据正确返回了,至于返回的是什么,这已经不重要了,不是吗?!!

 

 

 

6、至此,则完成了laravel5 处理ajax 携带自定义header头Token,并发起的跨域CORS的复杂请求。

 

posted @ 2019-10-30 10:28  PHP急先锋  阅读(3003)  评论(0编辑  收藏  举报