alfredoramos/parsedown-extra-laravel

A Parsedown Extra package for Laravel and Lumen

About

A Parsedown Extra package for Laravel and Lumen.

HTML Purifier is also used to filter the HTML output, protecting your application for insecure content. Additionally, HTML5 Definitions for HTML Purifier is used to add new definitions and sanitization for HTML5.

Compatibility

Version	Laravel	Lumen	Status
0.8.x	>= 5.5.x, < 6.x.x	>= 5.5.x, < 6.x.x	End of life
1.x.x	6.x.x	6.x.x	End of life
2.x.x	7.x.x	7.x.x	End of life
3.x.x	8.x.x	8.x.x	End of life
4.x.x	9.x.x	9.x.x	Security fixes only
5.x.x	10.x.x	10.x.x	Active support

Installation

Open your composer.json file and add the package in the require object:

"alfredo-ramos/parsedown-extra-laravel": "^5.0.0"

Then run composer update on your terminal.

Laravel

Service providers and aliases will be registered automatically since Laravel 5.5.x, thanks to the new package auto-discovery.

Lumen

In your bootstrap\app.php file and register the service provider:

$app->register(AlfredoRamos\ParsedownExtra\ParsedownExtraServiceProvider::class);

Then register the facade alias:

$app->withFacades(true, [
	AlfredoRamos\ParsedownExtra\Facades\ParsedownExtra::class => 'Markdown'
]);

Usage

The Markdown::parse() method is responsible to transform the Markdown syntax into HTML, its signature is the following:

Markdown::parse(string $text = '', array $config = [])

Parameter	Data type	Default value	Required	Description
$text	string	''	Yes	Markdown text
$config	array, string	[]	No	Extra configuration for HTML Purifier

Notes:

• If $config is a string, it will be trated as an array key in the [purifier][settings] array.
• If $config is an array it will extend default configuration for HTML Purifier.
• An empty value for $config means that it will use default values for HTML Purifier, see \AlfredoRamos\ParsedownExtra\HTMLPurifierLaravel::getConfig() for more information.

Using $config as a string

Markdown::parse('Hello world', ['config' => 'comments'])

Where comments is the key of the array settings.

return [
	'purifier'	=> [
		'enabled'	=> true,
		'settings'	=> [
			'default' => [...],
			'comments' => [...]
		]
	]
];

Using $config as an array

Markdown::parse('[DuckDuckGo](https://duckduckgo.com/)', ['config' => [
	'URI.Host' => 'localhost',
	'URI.DisableExternal' => true
]])

For all configuration options see the official HTML Purifier config docs.

Using default settings

Markdown::parse('Hello world!')
// Is the same as
Markdown::parse('Hello world!', ['config' => 'default'])

Blade

It can be used in Blade through the Markdown facade:

{!! Markdown::parse("Hello world") !!}
{!! Markdown::parse("[XSS link](javascript:alert('xss'))") !!}

The code above will print:

<p>Hello world</p>

<!-- HTML Purifier enabled -->
<p><a>XSS link</a></p>

<!-- HTML Purifier disabled -->
<p><a href="javascript:alert('xss')">XSS link</a></p>

Helper

For your convenience, the markdown() helper function is also available. It accepts the same parameters as the facade.

markdown('Hello world', ['purifier' => false])

Configuration

To add new or edit the default options, run the following command to make a copy of the default configuration file:

php artisan vendor:publish \
	--provider='AlfredoRamos\ParsedownExtra\ParsedownExtraServiceProvider' \
	--tag=config --force