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在 Laravel 5 中使用 Purifier 扩展包集成 HTMLPurifier 防止 XSS 跨站攻击

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Release: 2016-06-20 12:30:03
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1、安装

HTMLPurifier 是基于 PHP 编写的富文本HTML 过滤器,通常我们可以使用它来防止XSS 跨站攻击,更多关于 HTMLPurifier的详情请参考其官网: http://htmlpurifier.org/ 。Purifier 是在Laravel 5 中集成 HTMLPurifier 的扩展包,我们可以通过 Composer 来安装这个扩展包:

composer require mews/purifier
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安装完成后,在配置文件 config/app.php 的 providers 中注册HTMLPurifier服务提供者:

'providers' => [    // ...    Mews\Purifier\PurifierServiceProvider::class,]
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然后在 aliases 中注册Purifier门面:

'aliases' => [    // ...    'Purifier' => Mews\Purifier\Facades\Purifier::class,]
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2、配置

要使用自定义的配置,发布配置文件到 config 目录:

php artisan vendor:publish
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这样会在 config 目录下生成一个 purifier.php 文件:

return [    'encoding' => 'UTF-8',    'finalize' => true,    'preload'  => false,    'cachePath' => null,    'settings' => [        'default' => [            'HTML.Doctype'             => 'XHTML 1.0 Strict',            'HTML.Allowed'             => 'div,b,strong,i,em,a[href|title],ul,ol,li,p[style],br,span[style],img[width|height|alt|src]',            'CSS.AllowedProperties'    => 'font,font-size,font-weight,font-style,font-family,text-decoration,padding-left,color,background-color,text-align',            'AutoFormat.AutoParagraph' => true,            'AutoFormat.RemoveEmpty'   => true        ],        'test' => [            'Attr.EnableID' => true        ],        "youtube" => [            "HTML.SafeIframe" => 'true',            "URI.SafeIframeRegexp" => "%^(http://|https://|//)(www.youtube.com/embed/|player.vimeo.com/video/)%",        ],    ],];
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3、使用示例

可以使用辅助函数 clean :

clean(Input::get('inputname'));
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或者使用 Purifier 门面提供的 clean 方法:

Purifier::clean(Input::get('inputname'));
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还可以在应用中进行动态配置:

clean('This is my H1 title', 'titles');clean('This is my H1 title', array('Attr.EnableID' => true));
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或者你也可以使用 Purifier 门面提供的方法:

Purifier::clean('This is my H1 title', 'titles');Purifier::clean('This is my H1 title', array('Attr.EnableID' => true));
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