adam4adam remove ads

removes annoying ads from adam4adam*.com sites, tested in MS Edge and Firefox
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// ==UserScript==
// @name        adam4adam remove ads
// @namespace   electronsf
// @icon
// @version     0.1.3
// @license     MIT
// @include     https://www.adam4adam.com/*
// @include     https://www.adam4adamsfw.com/*
// @grant       none
//
// @author      [email protected]
// @description removes annoying ads from adam4adam*.com sites, tested in MS Edge and Firefox
// ==/UserScript==

/* jshint esversion: 8 */

// toggle to see debug output in the javascript console
var DEBUG = false

// each line is a regex anchored to start of class name via '^'
// and to the end of class name via $
var classRegexTargetSelfStr = `
promo-bar-ads
(banner-)?vip.*
ads-.+
header-banner
mys-wrapper
adsbygoogle.*
stories-feed-container
google-anno.*
`
// special case:  easier to identify the child of an elt we need
// to remove than the elt itself
var classRegexTargetParentStr = `
sticky-block
`

const LOG_TAG = 'a4a de-ad-ifier :: '
var logRule = '===============================================\n'
var iframesRemoved = false
var classToCountInitMap = new Map()
var classToRemovalCountMap = new Map()

function constructRegex (multilineStr) {
  return new RegExp(
    '^(' +
      multilineStr.split(`\n`).join(`|`).replace(/^\|/, ``).replace(/\|$/, ``) +
      ')$'
  )
}
const classRegexTargetSelf = constructRegex(classRegexTargetSelfStr)
const classRegexTargetParent = constructRegex(classRegexTargetParentStr)

function debugAllClassNames () {
  var classNamesArr = []
  var cn
  Array.from(document.querySelectorAll('*')).forEach(e => {
    cn = e.className
    if (cn != '') {
      if (classToCountInitMap.has(cn)) {
        classToCountInitMap.set(cn, classToCountInitMap.get(cn) + 1)
      } else {
        classNamesArr.push(cn)
        classToCountInitMap.set(cn, 1)
      }
    }
  })

  var classNamesStr, count
  classNamesArr.toSorted().forEach(cn => {
    classNamesStr += cn
    count = classToCountInitMap.get(cn)
    if (classToCountInitMap.get(cn) > 1) {
      classNamesStr += ' (' + count + ')'
    }
    classNamesStr += '\n'
  })

  console.log(
    logRule +
      LOG_TAG +
      'DEBUG Class Names\n' +
      logRule +
      classNamesStr +
      logRule
  )
}

function debugPostReport () {
  var removalsArr = []
  var count = 0
  // classToRemovalCountMap.keys().forEach(cn => {
  classToRemovalCountMap.entries().forEach(entry => {
    removalsArr.push(entry[1] + '\t' + entry[0])
  })
  console.log(
    logRule + LOG_TAG + 'DEBUG Removal Report\n' + logRule +
    removalsArr.toSorted().join('\n') + '\n' + logRule
  )
}

function doRemoval (elt) {
  if (classToRemovalCountMap.has(elt.className)) {
    classToRemovalCountMap.set(
      elt.className,
      classToRemovalCountMap.get(elt.className) + 1
    )
  } else {
    classToRemovalCountMap.set(elt.className, 1)
  }
  elt.remove()
}

function removeByClassRegex (classRegex, removeParent) {
  var pendingRemoval = []
  Array.from(document.querySelectorAll('*')).forEach(e => {
    if (classRegex.test(e.className)) {
      pendingRemoval.push(e)
    }
  })

  pendingRemoval.forEach(e => {
    console.log(LOG_TAG + "REMOVING element with class='" + e.className + "'")
    try {
      if (removeParent) {
        doRemoval(e.parentNode)
      } else {
        doRemoval(e)
      }
    } catch (error) {
      console.log(LOG_TAG + 'Error encountered:  ' + error)
    }
  })

  return pendingRemoval.length
}

var totalItn = 0

const wait = ms => new Promise(resolve => setTimeout(resolve, ms))

// itn: num iterations
// ms:  milliseconds between each iteration
async function runIterations (itn, ms) {
  for (var i = 0; i < itn; i++) {
    totalItn++
    console.log(
      LOG_TAG + 'run #' + totalItn + ':  a4a removing ad-related elements'
    )

    var removedCount = 0
    removedCount += removeByClassRegex(classRegexTargetParent, true)
    removedCount += removeByClassRegex(classRegexTargetSelf, false)

    if (!iframesRemoved) {
      var numIframesRemoved = 0
      Array.from(document.getElementsByTagName('iframe')).map(e => {
        iframesRemoved = true
        e.remove()
      })
    }
    console.log(
      LOG_TAG + 'sleeping for ' + ms / 1000 + 'sec before running again'
    )
    await wait(ms)
  }
}

async function doStart () {
  !DEBUG || debugAllClassNames()

  var phase1Itn = 3
  var phase1Interval = 1000
  var phase2Itn = 3
  var phase2Interval = 3000
  var startDelay = 0

  runIterations(phase1Itn, phase1Interval)
  startDelay += phase1Itn * phase1Interval

  await wait(startDelay)
  runIterations(phase2Itn, phase2Interval)
  startDelay += phase2Itn * phase2Interval

  await wait(startDelay)
  !DEBUG || debugPostReport()

  console.log(LOG_TAG + 'finished!')

  return 0
}

doStart()