I've got some user generated html markup from a text area and I'd like to render it on another part of the screen. The markup is saved as a string in the props of the component.
I don't want to use dangerouslysethtml for obvious reasons. Is there a parser such as marked but for html so that it strips out script tags and other invalid html.
Sanitize the html using the sanitize-html module, and render the sanitized string using dangerouslySetInnerHTML.
You can create a simple wrapper component:
const defaultOptions = {
allowedTags: [ 'b', 'i', 'em', 'strong', 'a' ],
allowedAttributes: {
'a': [ 'href' ]
},
allowedIframeHostnames: ['www.youtube.com']
};
const sanitize = (dirty, options) => ({
__html: sanitizeHtml(
dirty,
options: { ...defaultOptions, ...options }
)
});
const SanitizeHTML = ({ html, options }) => (
<div dangerouslySetInnerHTML={sanitize(html, options)} />
);
Usage:
<SanitizeHTML html="<img src=x onerror=alert('img') />" />
You can also use react-sanitized-html's SanitizedHTML component, which is a react wrapper around sanitize-html:
<SanitizedHTML
allowedAttributes={{ 'a': ['href'] }}
allowedTags={['a']}
html={ `<a href="http://bing.com/">Bing</a>` }
/>
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