jav_preview

添加jav官方预览影片
当前为 2019-08-23 提交的版本，查看最新版本。
换行
// ==UserScript==
// @author       BigDiao
// @name         jav_preview
// @version      0.0.6
// @include      http*://*javbus.com/*
// @include      http*://*javlibrary.com/*/?v=*
// @description  添加jav官方预览影片
// @grant        GM_xmlhttpRequest
// @namespace    https://sleazyfork.org/users/232476
// ==/UserScript==
// 根据网站域名判断视频插入位置
const domain = document.domain
var $position
if (domain == "www.javbus.com"){
    $position = document.querySelector('#mag-submit-show')
}else if (domain == "www.javlibrary.com"){
    $position = document.querySelector('#video_favorite_edit')
}

if (!$position) return

// request with customer headers
function request(url) {
        return new Promise(resolve => {
            GM_xmlhttpRequest({
                url,
                method: 'GET',
                headers:  {
                    "Cache-Control": "no-cache",
                    "User-Agent": "Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Mobile Safari/537.36",
                },
                timeout: 30000,
                onload: response => { //console.log(url + " reqTime:" + (new Date() - time1));
                    resolve(response);
                },
                onabort: (e) =>{
                    console.log(url + " abort");
                    resolve("wrong");
                },
                onerror: (e) =>{
                    console.log(url + " error");
                    console.log(e);
                    resolve("wrong");
                },
                ontimeout: (e) =>{
                    console.log(url + " timeout");
                    resolve("wrong");
                },
            });
        });
    }

// GM_xmlhttpRequest promise wrapper
const gmFetch = url =>
  new Promise((resolve, reject) => {
    GM_xmlhttpRequest({
      url: url,
      method: 'GET',
      onload: resolve,
      onerror: reject
    })
  })
const parseHTML = str => {
  const tmp = document.implementation.createHTMLDocument()
  tmp.body.innerHTML = str
  return tmp
}
const avid = document.title.replace(/([^-]+)-([^ ]+) .*/, '$1-$2')
const preview = async () => {
  const srcs = src =>
    ['dmb', 'dm', 'sm']
      .map(i => src.replace(/_(dmb|dm|sm)_/, `_${i}_`))
      .map(i => `<source src=${i}></source>`)
      .join('')

  const r18 = async () => {
    const res = await gmFetch(
      `https://www.r18.com/common/search/order=match/searchword=${avid}`
    )
    try {
    const video_tag = parseHTML(res.responseText).querySelector('.js-view-sample')
    const src = ['low', 'med', 'high']
      .map(i => video_tag.getAttribute('data-video-' + i))
      .find(i => i)
    console.log('r18', src)
    return src
    }catch(err){
        console.log("获取r18视频地址出现错误", err)
        const src = ""
        return src
    }

  }
  const dmm = async () => {
    const res = await request(
      `https://www.dmm.co.jp/search/=/searchstr=${avid}`
    )
    if (res.finalUrl == "http://www.dmm.co.jp/top/-/error/area/"){
       const src = ""
       return src
    }
    try {
        const video_tag = parseHTML(res.responseText).querySelector('.play-btn')
        const src = video_tag.getAttribute('href')
        console.log('dmm', src)
        return src
    }catch (err){
        console.log('获取dmm视频出现错误:', err)
        const src = ""
        return src
    }
  }
  let src
  const r18src = await r18()
  if (r18src == ""){
      console.log("r18预览视频获取失败，尝试使用dmm源，请切换为日本IP")
      dmmsrc = await dmm()
      if (dmmsrc == ""){
          console.log("dmm预览视频获取失败，请检查IP是否为日本并确保番号正确")
      }else {
         src = srcs(await dmm())
      }
  }else{
      console.log("r18预览视频获取成功")
      src = srcs(r18src)
  }
  const html = src
    ? `<video id=jav_preview style='postiton:absolute;z-order:1' controls autoplay muted=true>${src}</video>`
    : '<div id=jav_preview class=header style="text-align:center;padding-top:1rem;">preview not found</div>'
  $position.insertAdjacentHTML('afterend', html)
}
preview()