WeDevelop Silverstripe CSP Custom Scripts

Description

This Silverstripe module makes sure that any custom scripts added through Requirements are served from a javascript file. The goal of this is to be able to drop script-src: 'unsafe-inline' from your Content-Security-Policy header.

Installation

$ composer require wedevelopnl/silverstripe-csp-custom-scripts

Run a dev/build and you should be all set. If you're using dorsetdigital/silverstripe-enhanced-requirements read "Compatibility" for further instructions

Compatibility

If you're using dorsetdigital/silverstripe-enhanced-requirements you will have to do the override yourself, extend the Enhanced_Requirements class and use the trait to inject the CSP code.

csp.yml

---
Name: csp-enhanced-requirements
After:
  - '#enhanced-requirements'
  - '#csp-requirements'
---
SilverStripe\Core\Injector\Injector:
  SilverStripe\View\Requirements_Backend:
    class: App\View\RequirementsBackend

src/View/RequirementsBackend.php

<?php

declare(strict_types=1);

namespace App\View;

use DorsetDigital\EnhancedRequirements\View\Enhanced_Backend;
use WeDevelop\Csp\View\CspBackendTrait;

final class RequirementsBackend extends Enhanced_Backend
{
    use CspBackendTrait;

    public function includeInHTML($content)
    {
        $this->processCspCustomScripts();

        return parent::includeInHTML($content);
    }
}