@storyblok/richtext

A custom resolver for the Storyblok Richtext field.

🚀 Usage

If you are first-time user of the Storyblok, read the Getting Started guide to get a project ready in less than 5 minutes.

Installation

npm install @storyblok/richtext

or yarn:

yarn add @storyblok/richtext

or pnpm:

pnpm add @storyblok/richtext

Basic

import { richTextResolver } from '@storyblok/richtext';

const { render } = richTextResolver();

const html = render(doc);

document.querySelector<HTMLDivElement>('#app')!.innerHTML = `
  <div>
  ${html}
  </div>
`;

Overwrite resolvers

To overwrite an existing resolver, you can pass a property called resolvers available on the richTextResolver options.

import { MarkTypes, richTextResolver } from '@storyblok/richtext';

const html = richTextResolver({
  resolvers: {
    [MarkTypes.LINK]: (node) => {
      return `<button href="https://github.com/storyblok/richtext/blob/main/${node.attrs?.href}" target="${node.attrs?.target}">${node.children}</button>`;
    },
  },
}).render(doc);

Typing with Generics

It is possible to ensure correct typing support in a framework-agnostic way by using Typescript Generics

Vanilla string
Vue VNode
React React.ReactElement

This way the @storyblok/richtext is ignorant of framework specific types, avoiding having to import them and having vue react etc as dependencies.

// Vanilla
const options: StoryblokRichTextOptions<string> = {
  resolvers: {
    [MarkTypes.LINK]: (node: Node<string>) => {
      return `<button href="https://github.com/storyblok/richtext/blob/main/${node.attrs?.href}" target="${node.attrs?.target}">${node.children}</button>`;
    },
  },
};

const html = richTextResolver<string>(options).render(doc);

// Vue
const options: StoryblokRichTextOptions<VNode> = {
  renderFn: h,
  keyedResolvers: true,
};
const root = () => richTextResolver<VNode>(options).render(doc);

// React
const options: StoryblokRichTextOptions<React.ReactElement> = {
  renderFn: React.createElement,
  keyedResolvers: true,
};
const root = () => richTextResolver<React.ReactElement>(options).render(doc);

Optimize Images

To optimize images in the richtext, you can use the optimizeImages property on the richTextResolver options. For the full list of available options, check the Image Optimization documentation.

import { richTextResolver } from '@storyblok/richtext';

const html = richTextResolver({
  optimizeImages: {
    class: 'my-peformant-image',
    loading: 'lazy',
    width: 800,
    height: 600,
    srcset: [400, 800, 1200, 1600],
    sizes: ['(max-width: 400px) 100vw', '50vw'],
    filters: {
      format: 'webp',
      quality: 10,
      grayscale: true,
      blur: 10,
      brightness: 10,
    },
  },
}).render(doc);

Security: HTML Output Sanitization

[!WARNING] This package does not provide proper HTML sanitization by default

The @storyblok/richtext package primarly converts rich text content into HTML strings, which can then be rendered into the DOM of a web page. This means that any HTML output generated by the rich text resolver includes the raw content as it is defined in Storyblok, which may potentially include harmful or malicious scripts.

Why is Sanitization Important?

Injecting unsanitized HTML into your web application can expose it to cross-site scripting (XSS) attacks. XSS attacks can allow attackers to execute malicious scripts in the context of your website, potentially leading to data theft, session hijacking, and other security breaches.

Your Responsibility

As a developer using @storyblok/richtext, you are responsible for sanitizing the HTML output from the rich text resolver before injecting it into the DOM. This precaution helps prevent XSS attacks and ensures a safer web environment for your users.

Recommended Sanitization Libraries

To assist you in sanitizing HTML content, we recommend using the following library:

sanitize-html: A simple HTML sanitizer with a flexible API that can adjust to a wide range of applications.

GitHub: sanitize-html

Example Usage

Here is an example of how you might sanitize HTML output using sanitize-html before rendering it to the DOM:

import sanitizeHtml from 'sanitize-html';
import { richTextResolver } from '@storyblok/richtext';

const html = richTextResolver().render(yourRichTextContent);
const sanitizedHTML = sanitizeHtml(html, {
  allowedTags: sanitizeHtml.defaults.allowedTags.concat(['img', 'figure', 'figcaption']),
  allowedAttributes: {
    ...sanitizeHtml.defaults.allowedAttributes,
    img: ['src', 'alt', 'title']
  }
});

document.getElementById('your-element-id').innerHTML = sanitizedHTML;

Setup

pnpm install

This command will install the dependencies for the workspace, including the dependencies for the playgrounds under /playground and different framework wrappers /packages

Run Playground

To run the vanilla Typescript playground:

pnpm run playground

Vue playground:

pnpm run playground:vue

React playground:

pnpm run playground:react

Alternatively you can run the following command to run all the playgrounds:

pnpm run playground:all

Build

To build the core package:

pnpm run build

To build the wrappers under /packages:

pnpm run build:packages

Lint

To lint the core package:

pnpm run lint

To lint the wrappers under /packages:

pnpm run lint:packages

Alternatively, you can run the following command to fix the linting issues:

pnpm run lint:fix

Test

To run the tests for the core package:

pnpm run test

🔗 Related Links

Storyblok Technology Hub: Storyblok integrates with every framework so that you are free to choose the best fit for your project. We prepared the technology hub so that you can find selected beginner tutorials, videos, boilerplates, and even cheatsheets all in one place.
Getting Started: Get a project ready in less than 5 minutes.
Storyblok CLI: A simple CLI for scaffolding Storyblok projects and fieldtypes.

ℹ️ More Resources

Support

Bugs or Feature Requests? Submit an issue.
Do you have questions about Storyblok or you need help? Join our Discord Community.

Contributing

Please see our contributing guidelines and our code of conduct. This project use semantic-release for generate new versions by using commit messages and we use the Angular Convention to naming the commits. Check this question about it in semantic-release FAQ