no-danger.js
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/**
* @fileoverview Prevent usage of dangerous JSX props
* @author Scott Andrews
*/
'use strict';
const docsUrl = require('../util/docsUrl');
const jsxUtil = require('../util/jsx');
// ------------------------------------------------------------------------------
// Constants
// ------------------------------------------------------------------------------
const DANGEROUS_MESSAGE = 'Dangerous property \'{{name}}\' found';
const DANGEROUS_PROPERTY_NAMES = [
'dangerouslySetInnerHTML'
];
const DANGEROUS_PROPERTIES = DANGEROUS_PROPERTY_NAMES.reduce((props, prop) => {
props[prop] = prop;
return props;
}, Object.create(null));
// ------------------------------------------------------------------------------
// Helpers
// ------------------------------------------------------------------------------
/**
* Checks if a JSX attribute is dangerous.
* @param {String} name - Name of the attribute to check.
* @returns {boolean} Whether or not the attribute is dnagerous.
*/
function isDangerous(name) {
return name in DANGEROUS_PROPERTIES;
}
// ------------------------------------------------------------------------------
// Rule Definition
// ------------------------------------------------------------------------------
module.exports = {
meta: {
docs: {
description: 'Prevent usage of dangerous JSX props',
category: 'Best Practices',
recommended: false,
url: docsUrl('no-danger')
},
schema: []
},
create(context) {
return {
JSXAttribute(node) {
if (jsxUtil.isDOMComponent(node.parent) && isDangerous(node.name.name)) {
context.report({
node,
message: DANGEROUS_MESSAGE,
data: {
name: node.name.name
}
});
}
}
};
}
};