如何在 laravel 5.3 中添加 TrimString 中间件？

Question

刚知道 Laravel 5.4 有一个很棒的功能 TrimString，它可以从任何输入中删除空格。我想在我的 5.3 项目中使用这个中间件，知道怎么做吗？

我刚刚从 Laravel 的 GitHub 存储库复制了中间件，但它不起作用。

谢谢

Answer 1

如果您想在Laravel 5.3中使用此功能。

将这两个类添加到您的 App\Http\Middleware

https://github.com/laravel/framework/blob/5.4/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php

https://github.com/laravel/laravel/blob/master/app/Http/Middleware/TrimStrings.php

正在将 namespace 更新为 App\Http\middleware。喜欢：

TransformsRequest.php

namespace App\Http\Middleware;

use Closure;
use Symfony\Component\HttpFoundation\ParameterBag;

class TransformsRequest
{
    /**
     * The additional attributes passed to the middleware.
     *
     * @var array
     */
    protected $attributes = [];

    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Closure  $next
     * @return mixed
     */
    public function handle($request, Closure $next, ...$attributes)
    {
        $this->attributes = $attributes;

        $this->clean($request);

        return $next($request);
    }

    /**
     * Clean the request's data.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return void
     */
    protected function clean($request)
    {
        $this->cleanParameterBag($request->query);

        $this->cleanParameterBag($request->request);

        if ($request->isJson()) {
            $this->cleanParameterBag($request->json());
        }
    }

    /**
     * Clean the data in the parameter bag.
     *
     * @param  \Symfony\Component\HttpFoundation\ParameterBag  $bag
     * @return void
     */
    protected function cleanParameterBag(ParameterBag $bag)
    {
        $bag->replace($this->cleanArray($bag->all()));
    }

    /**
     * Clean the data in the given array.
     *
     * @param  array  $data
     * @return array
     */
    protected function cleanArray(array $data)
    {
        return collect($data)->map(function ($value, $key) {
            return $this->cleanValue($key, $value);
        })->all();
    }

    /**
     * Clean the given value.
     *
     * @param  string  $key
     * @param  mixed  $value
     * @return mixed
     */
    protected function cleanValue($key, $value)
    {
        if (is_array($value)) {
            return $this->cleanArray($value);
        }

        return $this->transform($key, $value);
    }

    /**
     * Transform the given value.
     *
     * @param  string  $key
     * @param  mixed  $value
     * @return mixed
     */
    protected function transform($key, $value)
    {
        return $value;
    }
}

TrimStrings.php

namespace App\Http\Middleware;

class TrimStrings extends TransformsRequest
{
    /**
     * The attributes that should not be trimmed.
     *
     * @var array
     */
    protected $except = [
        //
    ];

    /**
     * Transform the given value.
     *
     * @param  string  $key
     * @param  mixed  $value
     * @return mixed
     */
    protected function transform($key, $value)
    {
        if (in_array($key, $this->except)) {
            return $value;
        }

        return is_string($value) ? trim($value) : $value;
    }
}

并添加到您的 App\Http\Kernel.php

protected $middleware = [
    \Illuminate\Foundation\Http\Middleware\CheckForMaintenanceMode::class,
    \App\Http\Middleware\TransformsRequest::class,
    \App\Http\Middleware\TrimStrings::class,
];

要使用它只需使用：

dd(request('email'));

更多信息：

https://laravel-news.com/laravel-5-4-middleware

如何在 laravel 5.3 中添加 TrimString 中间件？

How can i add TrimString Middleware in laravel 5.3?

laravel

laravel-5.3

laravel-5.4