移除csdn

自动从搜索结果中移除csdn, 目前支持 google, bing. 有任何问题请提交反馈
目前為 2018-12-16 提交的版本，檢視最新版本。
安裝腳本 ?
Wrap lines
// ==UserScript==
// @name         移除csdn
// @namespace    http://tampermonkey.net/
// @version      0.4
// @description  自动从搜索结果中移除csdn, 目前支持 google, bing. 有任何问题请提交反馈
// @author       zhyl
// @grant        none
// @run-at       document-start

// @include https://www.google.*/*
// @include https://*.bing.com/*
// ==/UserScript==

(function() {
  const host = location.host
  const url = new URL(location.href)
  const searchParams = url.searchParams
  const paramsIt = searchParams.keys()

  let search = '?'

  if (~host.indexOf('google')) {
    removeFromGoogle()
    console.log('google')
  } else if (~host.indexOf('bing')) {
    removeFromBing()
  }

  function removeFromBing() {
    let res = generateSearch('q', '-csdn.net')
    if (res.redirect) {
      location.search = res.search
    }

    window.onload = (e) => {
      if (e) {
        return
      }
      let searchInput = document.getElementById('sb_form_q')
      let searchForm = document.getElementById('sb_form')
      const extraKeyword = '-csdn.net'
  
      searchInput.value = searchInput.value.replace(extraKeyword, '').trim()
      searchForm.addEventListener('submit', e=> {
        searchInput.value += ` ${extraKeyword}`
      }, true)
    }
  }

  function removeFromGoogle() {
    let res = generateSearch(['q', 'oq'])

    if (res.redirect) {
      location.search = res.search
    }
    window.onload = () => {
      let searchInput = document.getElementsByClassName('gLFyf')[0]
      let searchForm = document.getElementsByClassName('tsf')[0]
      let searchBtn = document.getElementsByClassName('Tg7LZd')[0]

      const extraKeyword = '-csdn'
      searchInput.value = searchInput.value.replace(extraKeyword, '').trim()

      searchForm.addEventListener('submit', e => {
        _restore()
      }, true)
      searchBtn.addEventListener('click', e => {
        _restore()
      }, true)

      function _restore() {
        searchInput.value += ` ${extraKeyword}`
        let hiddenInput = document.querySelector('[name=oq]')
        if (hiddenInput && !~hiddenInput.value.indexOf(extraKeyword)) {
          hiddenInput.value += ` ${extraKeyword}`
        }
        let originFunc = window.s__we
        window.s__we = (a, b) => {
          originFunc(a, b)
          hiddenInput = document.querySelector('[name=oq]')
          if (!~hiddenInput.value.indexOf(extraKeyword)) {
            hiddenInput.value += ` ${extraKeyword}`
          }
        }
      }
    }
  }

  function generateSearch(keyNameArray = [''], extraParam = '-csdn') {
    if (!(keyNameArray instanceof Array)) {
      keyNameArray = [keyNameArray]
    }

    let result = paramsIt.next()
    let removeFlag = false
    while(!result.done) {
      let key = result.value, value = searchParams.get(key)
      if (!~value.indexOf('-csdn') && ~keyNameArray.indexOf(key)) {
          value += ` ${extraParam}`
          removeFlag = true
      }
      search += `${key}=${value}&`
      result = paramsIt.next()
    }
    if (removeFlag) {
      search = search.substr(0, search.length - 1)
      return { redirect: true, search }
    }
    return { redirect: false }
  }

})()
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