HTMLPurifier for Laravel

A simple Laravel service provider for easily using HTMLPurifier inside Laravel. From their website:

HTML Purifier is a standards-compliant HTML filter library written in PHP. HTML Purifier will not only remove all malicious code (better known as XSS) with a thoroughly audited, secure yet permissive whitelist, it will also make sure your documents are standards compliant, something only achievable with a comprehensive knowledge of W3C's specifications. Tired of using BBCode due to the current landscape of deficient or insecure HTML filters? Have a WYSIWYG editor but never been able to use it? Looking for high-quality, standards-compliant, open-source components for that application you're building? HTML Purifier is for you!

Installation

Require this package with composer:

composer require cebugle/laravel-html-purifier

The service provider will be auto-discovered. You do not need to add the provider anywhere.

Usage

Use these methods inside your requests or middleware, wherever you need the HTML cleaned up:

clean(Input::get('inputname'));

or

Purifier::clean(Input::get('inputname'));

dynamic config

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

or

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

use URI filter

Purifier::clean('This is my H1 title', 'titles', function (HTMLPurifier_Config $config) {
    $uri = $config->getDefinition('URI');
    $uri->addFilter(new HTMLPurifier_URIFilter_NameOfFilter(), $config);
});

Alternatively, in Laravel 7+, if you're looking to clean your HTML inside your Eloquent models, you can use our custom casts:

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Cebugle\Purifier\Casts\CleanHtml;
use Cebugle\Purifier\Casts\CleanHtmlInput;
use Cebugle\Purifier\Casts\CleanHtmlOutput;

class Monster extends Model
{
    protected $casts = [
        'bio'            => CleanHtml::class, // cleans both when getting and setting the value
        'description'    => CleanHtmlInput::class, // cleans when setting the value
        'history'        => CleanHtmlOutput::class, // cleans when getting the value
    ];
}

Configuration

To use your own settings, publish config.

php artisan vendor:publish --provider="Mews\Purifier\PurifierServiceProvider"

Config file config/purifier.php should like this

return [
    'encoding'           => 'UTF-8',
    'finalize'           => true,
    'ignoreNonStrings'   => false,
    'cachePath'          => storage_path('app/purifier'),
    'cacheFileMode'      => 0755,
    'settings'      => [
        'default' => [
            'HTML.Doctype'             => 'HTML 4.01 Transitional',
            'HTML.Allowed'             => 'div,b,strong,i,em,u,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/)%",
        ],
        'custom_definition' => [
            'id'  => 'html5-definitions',
            'rev' => 1,
            'debug' => false,
            'elements' => [
                // http://developers.whatwg.org/sections.html
                ['section', 'Block', 'Flow', 'Common'],
                ['nav',     'Block', 'Flow', 'Common'],
                ['article', 'Block', 'Flow', 'Common'],
                ['aside',   'Block', 'Flow', 'Common'],
                ['header',  'Block', 'Flow', 'Common'],
                ['footer',  'Block', 'Flow', 'Common'],
				
				// Content model actually excludes several tags, not modelled here
                ['address', 'Block', 'Flow', 'Common'],
                ['hgroup', 'Block', 'Required: h1 | h2 | h3 | h4 | h5 | h6', 'Common'],
				
				// http://developers.whatwg.org/grouping-content.html
                ['figure', 'Block', 'Optional: (figcaption, Flow) | (Flow, figcaption) | Flow', 'Common'],
                ['figcaption', 'Inline', 'Flow', 'Common'],
				
				// http://developers.whatwg.org/the-video-element.html#the-video-element
                ['video', 'Block', 'Optional: (source, Flow) | (Flow, source) | Flow', 'Common', [
                    'src' => 'URI',
					'type' => 'Text',
					'width' => 'Length',
					'height' => 'Length',
					'poster' => 'URI',
					'preload' => 'Enum#auto,metadata,none',
					'controls' => 'Bool',
                ]],
                ['source', 'Block', 'Flow', 'Common', [
					'src' => 'URI',
					'type' => 'Text',
                ]],

				// http://developers.whatwg.org/text-level-semantics.html
                ['s',    'Inline', 'Inline', 'Common'],
                ['var',  'Inline', 'Inline', 'Common'],
                ['sub',  'Inline', 'Inline', 'Common'],
                ['sup',  'Inline', 'Inline', 'Common'],
                ['mark', 'Inline', 'Inline', 'Common'],
                ['wbr',  'Inline', 'Empty', 'Core'],
				
				// http://developers.whatwg.org/edits.html
                ['ins', 'Block', 'Flow', 'Common', ['cite' => 'URI', 'datetime' => 'CDATA']],
                ['del', 'Block', 'Flow', 'Common', ['cite' => 'URI', 'datetime' => 'CDATA']],
            ],
            'attributes' => [
                ['iframe', 'allowfullscreen', 'Bool'],
                ['table', 'height', 'Text'],
                ['td', 'border', 'Text'],
                ['th', 'border', 'Text'],
                ['tr', 'width', 'Text'],
                ['tr', 'height', 'Text'],
                ['tr', 'border', 'Text'],
            ],
        ],
        'custom_attributes' => [
            ['a', 'target', 'Enum#_blank,_self,_target,_top'],
        ],
        'custom_elements' => [
            ['u', 'Inline', 'Inline', 'Common'],
        ],
    ],

];

Change log

Please see the Github Releases Tab for more information on what has changed recently.

Security

If you discover any security related issues, please email the author instead of using the issue tracker.

Credits

• HTMLPurifier.org - created the actual HTMLPurifier this package uses;
• Muharrem ERİN - package author and maintainer;
• All Contributors

License

MIT. Please see the license file for more information.