fix: remove dns for extension to work

Author: atinux

src/index.js

@@ -5,7 +5,7 @@ const { createHash } = require('crypto')
 const { URL } = require('url')
 const { join } = require('path')
 const { tmpdir } = require('os')
-const { isCrawlable, puppeteerArgs, puppeteerViewport, isAdultContentDomain } = require('./utils')
+const { isCrawlable, puppeteerArgs, puppeteerViewport } = require('./utils')
 const { hasVue, getVueMeta, getFramework, getPlugins, getUI, getNuxtMeta, getNuxtModules } = require('./detectors')
 const consola = require('consola')
 
@@ -145,11 +145,8 @@ async function analyze (originalUrl, options = {}) {
     const rtaLabel = await page.$eval('head > meta[name="rating"]', element => element.content).catch(() => '')
     if (['adult', 'RTA-5042-1996-1400-1577-RTA'].includes(rtaLabel.trim())) {
       infos.meta.isAdultContent = true
-    } else {
-      infos.meta.isAdultContent = await isAdultContentDomain(domain)
     }
 
-
     // Get page language
     const matches = html.match(new RegExp('<html[^>]*[: ]lang="([a-z]{2}((-|_)[A-Z]{2})?)"', 'i'));
     if (matches && matches.length) {

src/utils.js

@@ -1,6 +1,4 @@
-const { Resolver } = require('dns').promises
 const fetch = require('node-fetch')
-const resolver = new Resolver()
 
 const asArray = (value) => value instanceof Array ? value : [value]
 exports.asArray = asArray
@@ -116,21 +114,3 @@ exports.puppeteerViewport = {
   isMobile: false,
   width: 1920,
 }
-
-const openDNSIPs = [/67\.215\.65.\d{3}/gi, /146\.112\.61\.\d{3}/gi]
-
-function isOpenDNS(ip) {
-  return openDNSIPs.some(function (regexp) {
-    return regexp.test(ip)
-  })
-}
-
-exports.isAdultContentDomain = async function (domain) {
-  resolver.setServers(['208.67.222.123'])
-  const adultIPs = await resolver.resolve(domain, 'A')
-  if (isOpenDNS(adultIPs[0])) {
-    return true
-  } else {
-    return false
-  }
-}