mip-validator/src/validators/disallowed_tag.js

MIP validator

const _ = require('lodash')
const ERR = require('../error/dfn.json')
const POLYFILL_TAGS = ['frame', 'frameset']
const matcher = require('../matcher.js')
const logger = require('../logger.js')('mip-validator:disallowed_tag')

exports.onBegin = function(error, html, rules) {
    validatePolyfill(error, html, rules)
}

exports.onNode = function(node, rule, error) {
    if (!rule.disallow || _.includes(POLYFILL_TAGS, node.nodeName)) return
    var err = ERR.DISALLOWED_TAG
    error(err, matcher.fingerprintByTag(node))
}

// parse5 do not support frameset/frame
// ref: https://github.com/inikulin/parse5/issues/6
function validatePolyfill(error, html, rules) {
    var matches = matcher.matchTagNames(POLYFILL_TAGS, html)
    matches.forEach(function(tag) {
        var tagName = tag.match(/\w+/)
        if (tagName) {
            var subRules = _.get(rules, tagName[0])
        }
        _.map(subRules, rule => {
            if (!rule.disallow) {
                return
            }

            var err = ERR.DISALLOWED_TAG
            error(err, tag)
        })
    })
}