m3u8-downloader

https://blog.luckly-mjw.cn/tool-show/m3u8-downloader/index.html

https://segmentfault.com/a/1190000025182822

          // 注入html
          let $section = document.createElement('section')
          $section.innerHTML = `



  
  
  
  
  
  
  



页面加载中，请耐心等待...

  
  
{{tips}}
  ?
  手动添加油猴插件
  github
  其他实用工具
  English version

  
  if="isShowRefer" class="m-p-refer" target="_blank" href="https://segmentfault.com/a/1190000024416860">
    
    
    
  

  
  
测试链接：http://1257120875.vod2.myqcloud.com/0ef121cdvodtransgzp1257120875/3055695e5285890780828799271/v.f230.m3u8
  

    

    
    

    
    
    
else-if="finishNum === rangeDownload.targetSegment && rangeDownload.targetSegment > 0" class="disable">下载完成
    
else @click="togglePause">{{ isPause ? '恢复下载' : '暂停下载' }}
  

  
当无法下载，资源发生跨域限制时，在视频源页面打开控制台，注入代码解决，点击本按钮复制代码
  下载的视频看不了？试试这个终结解决方案「无差别视频提取工具」，有配套「油猴」插件啦！！！

  




`
          $section.style.width = '100%'
          $section.style.height = '800px'
          $section.style.top = '0'
          $section.style.left = '0'
          $section.style.position = 'relative'
          $section.style.zIndex = '9999'
          $section.style.backgroundColor = 'white'
          document.body.appendChild($section);

          // 加载 ASE 解密
          let $ase = document.createElement('script')
          $ase.src = 'https://blog.luckly-mjw.cn/tool-show/m3u8-downloader/aes-decryptor.js'

          // 加载 mp4 转码
          let $mp4 = document.createElement('script')
          $mp4.src = 'https://blog.luckly-mjw.cn/tool-show/m3u8-downloader/mux-mp4.js'

          // 加载 vue
          let $vue = document.createElement('script')
          $vue.src = 'https://blog.luckly-mjw.cn/tool-show/m3u8-downloader/vue.js'

          // 监听 vue 加载完成，执行业务代码
          $vue.addEventListener('load', () => {
new Vue({
  el: '#m-app',

  data() {
    return {
      url: '', // 在线链接
      tips: 'm3u8 视频在线提取工具', // 顶部提示
      isPause: false, // 是否暂停下载
      isGetMP4: false, // 是否转码为 MP4 下载
      durationSecond: 0, // 视频持续时长
      isShowRefer: true, // 是否显示推送
      downloading: false, // 是否下载中
      beginTime: '', // 开始下载的时间
      errorNum: 0, // 错误数
      finishNum: 0, // 已下载数
      downloadIndex: 0, // 当前下载片段
      finishList: [], // 下载完成项目
      tsUrlList: [], // ts URL数组
      mediaFileList: [], // 下载的媒体数组
      rangeDownload: { // 特定范围下载
        isShowRange: false, // 是否显示范围下载
        startSegment: '', // 起始片段
        endSegment: '', // 截止片段
        targetSegment: 1, // 待下载片段
      },
      aesConf: { // AES 视频解密配置
        method: '', // 加密算法
        uri: '', // key 所在文件路径
        iv: '', // 偏移值
        key: '', // 秘钥
        decryptor: null, // 解码器对象

        stringToBuffer: function(str) {
          return new TextEncoder().encode(str)
        },
      },
    }
  },

  created() {
    this.getSource();
    document.getElementById('loading') && document.getElementById('loading').remove()
    window.addEventListener('keyup', this.onKeyup)
  },

  beforeDestroy() {
    window.removeEventListener('keyup', this.onKeyup)
  },

  methods: {
    // 获取链接中携带的资源链接
    getSource() {
      let { href } = location
      if (href.indexOf('?source=') > -1) {
        this.url = href.split('?source=')[1]
      }
    },

    // 退出弹窗
    onKeyup(event) {
      if (event.keyCode === 13) { // 键入ESC
        this.getM3U8()
      }
    },

    // ajax 请求
    ajax(options) {
      options = options || {};
      let xhr = new XMLHttpRequest();
      if (options.type === 'file') {
        xhr.responseType = 'arraybuffer';
      }

      xhr.onreadystatechange = function() {
        if (xhr.readyState === 4) {
          let status = xhr.status;
          if (status >= 200 && status < 300) {
            options.success && options.success(xhr.response);
          } else {
            options.fail && options.fail(status);
          }
        }
      };

      xhr.open("GET", options.url, true);
      xhr.send(null);
    },

    // 合成URL
    applyURL(targetURL, baseURL) {
      baseURL = baseURL || location.href
      if (targetURL.indexOf('http') === 0) {
        return targetURL
      } else if (targetURL[0] === '/') {
        let domain = baseURL.split('/')
        return domain[0] + '//' + domain[2] + targetURL
      } else {
        let domain = baseURL.split('/')
        domain.pop()
        return domain.join('/') + '/' + targetURL
      }
    },

    // 解析为 mp4 下载
    getMP4() {
      this.isGetMP4 = true
      this.getM3U8()
    },

    // 获取在线文件
    getM3U8(onlyGetRange) {
      if (!this.url) {
        alert('请输入链接')
        return
      }
      if (this.url.toLowerCase().indexOf('.m3u8') === -1) {
        alert('链接有误，请重新输入')
        return
      }
      if (this.downloading) {
        alert('资源下载中，请稍后')
        return
      }

      // 在下载页面才触发，代码注入的页面不需要校验
      // 当前协议不一致，切换协议
      if (location.href.indexOf('blog.luckly-mjw.cn') > -1 && this.url.indexOf(location.protocol) === -1) {
        //alert('当前协议不一致，跳转至正确页面重新下载')
        location.href = `${this.url.split(':')[0]}://blog.luckly-mjw.cn/tool-show/m3u8-downloader/index.html?source=${this.url}`
        return
      }

      // 在下载页面才触发，修改页面 URL，携带下载路径，避免刷新后丢失
      if (location.href.indexOf('blog.luckly-mjw.cn') > -1) {
        window.history.replaceState(null, '', `${location.href.split('?')[0]}?source=${this.url}`)
      }

      this.tips = 'm3u8 文件下载中，请稍后'
      this.beginTime = new Date()
      this.ajax({
        url: this.url,
        success: (m3u8Str) => {
          this.tsUrlList = []
          this.finishList = []

          // 提取 ts 视频片段地址
          m3u8Str.split('\n').forEach((item) => {
            if (item.toLowerCase().indexOf('.ts') > -1 || item.toLowerCase().indexOf('.image') > -1) {
              this.tsUrlList.push(this.applyURL(item, this.url))
              this.finishList.push({
                title: item,
                status: ''
              })
            }
          })

          // 仅获取视频片段数
          if (onlyGetRange) {
            this.rangeDownload.isShowRange = true
            this.rangeDownload.endSegment = this.tsUrlList.length
            this.rangeDownload.targetSegment = this.tsUrlList.length
            return
          } else {
            let startSegment = Math.max(this.rangeDownload.startSegment || 1, 1) // 最小为 1
            let endSegment = Math.max(this.rangeDownload.endSegment || this.tsUrlList.length, 1)
            startSegment = Math.min(startSegment, this.tsUrlList.length) // 最大为 this.tsUrlList.length
            endSegment = Math.min(endSegment, this.tsUrlList.length)
            this.rangeDownload.startSegment = Math.min(startSegment, endSegment)
            this.rangeDownload.endSegment = Math.max(startSegment, endSegment)
            this.rangeDownload.targetSegment = this.rangeDownload.endSegment - this.rangeDownload.startSegment + 1
            this.downloadIndex = this.rangeDownload.startSegment - 1
            this.downloading = true
          }

          // 获取需要下载的 MP4 视频长度
          if (this.isGetMP4) {
            let infoIndex = 0
            m3u8Str.split('\n').forEach(item => {
              if (item.toUpperCase().indexOf('#EXTINF:') > -1) { // 计算视频总时长，设置 mp4 信息时使用
                infoIndex++
                if (this.rangeDownload.startSegment <= infoIndex && infoIndex <= this.rangeDownload.endSegment) {
                  this.durationSecond += parseFloat(item.split('#EXTINF:')[1])
                }
              }
            })
          }

          // 检测视频 AES 加密
          if (m3u8Str.indexOf('#EXT-X-KEY') > -1) {
            this.aesConf.method = (m3u8Str.match(/(.*METHOD=([^,\s]+))/) || ['', '', ''])[2]
            this.aesConf.uri = (m3u8Str.match(/(.*URI="([^"]+))"/) || ['', '', ''])[2]
            this.aesConf.iv = (m3u8Str.match(/(.*IV=([^,\s]+))/) || ['', '', ''])[2]
            this.aesConf.iv = this.aesConf.iv ? this.aesConf.stringToBuffer(this.aesConf.iv) : ''
            this.aesConf.uri = this.applyURL(this.aesConf.uri, this.url)

            // let params = m3u8Str.match(/#EXT-X-KEY:([^,]*,?METHOD=([^,]+))?([^,]*,?URI="([^,]+)")?([^,]*,?IV=([^,^\n]+))?/)
            // this.aesConf.method = params[2]
            // this.aesConf.uri = this.applyURL(params[4], this.url)
            // this.aesConf.iv = params[6] ? this.aesConf.stringToBuffer(params[6]) : ''
            this.getAES();
          } else if (this.tsUrlList.length > 0) { // 如果视频没加密，则直接下载片段，否则先下载秘钥
            this.downloadTS()
          } else {
            this.alertError('资源为空，请查看链接是否有效')
          }
        },
        fail: () => {
          this.alertError('链接不正确，请查看链接是否有效')
        }
      })
    },

    // 获取AES配置
    getAES() {
      alert('视频被 AES 加密，点击确认，进行视频解码')
      this.ajax({
        type: 'file',
        url: this.aesConf.uri,
        success: (key) => {
          // console.log('getAES', key)
          // this.aesConf.key = this.aesConf.stringToBuffer(key)
          this.aesConf.key = key
          this.aesConf.decryptor = new AESDecryptor()
          this.aesConf.decryptor.constructor()
          this.aesConf.decryptor.expandKey(this.aesConf.key);
          this.downloadTS()
        },
        fail: () => {
          this.alertError('视频已进行定制化加密，不提供定制化解密下载')
        }
      })
    },

    // ts 片段的 AES 解码
    aesDecrypt(data, index) {
      let iv = this.aesConf.iv || new Uint8Array([0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, index])
      return this.aesConf.decryptor.decrypt(data, 0, iv.buffer || iv, true)
    },

    // 下载分片
    downloadTS() {
      this.tips = 'ts 视频碎片下载中，请稍后'
      let download = () => {
        let isPause = this.isPause // 使用另一个变量来保持下载前的暂停状态，避免回调后没修改
        let index = this.downloadIndex
        this.downloadIndex++
        if (this.finishList[index] && this.finishList[index].status === '') {
          this.ajax({
            url: this.tsUrlList[index],
            type: 'file',
            success: (file) => {
              this.dealTS(file, index, () => this.downloadIndex < this.rangeDownload.endSegment && !isPause && download())
            },
            fail: () => {
              this.errorNum++
              this.finishList[index].status = 'error'
              if (this.downloadIndex < this.rangeDownload.endSegment) {
                !isPause && download()
              }
            }
          })
        } else if (this.downloadIndex < this.rangeDownload.endSegment) { // 跳过已经成功的片段
          !isPause && download()
        }
      }

      // 建立多少个 ajax 线程
      for (let i = 0; i < Math.min(10, this.rangeDownload.targetSegment - this.finishNum); i++) {
        download(i)
      }
    },

    // 处理 ts 片段，AES 解密、mp4 转码
    dealTS(file, index, callback) {
      const data = this.aesConf.uri ? this.aesDecrypt(file, index) : file
      this.conversionMp4(data, index, (afterData) => { // mp4 转码
        this.mediaFileList[index - this.rangeDownload.startSegment + 1] = afterData // 判断文件是否需要解密
        this.finishList[index].status = 'finish'
        this.finishNum++
        if (this.finishNum === this.rangeDownload.targetSegment) {
          this.downloadFile(this.mediaFileList, this.formatTime(this.beginTime, 'YYYY_MM_DD hh_mm_ss'))
        }
        callback && callback()
      })
    },

    // 转码为 mp4
    conversionMp4(data, index, callback) {
      if (this.isGetMP4) {
        let transmuxer = new muxjs.Transmuxer({
          keepOriginalTimestamps: true,
          duration: parseInt(this.durationSecond),
        });
        transmuxer.on('data', segment => {
          if (index === this.rangeDownload.startSegment - 1) {
            let data = new Uint8Array(segment.initSegment.byteLength + segment.data.byteLength);
            data.set(segment.initSegment, 0);
            data.set(segment.data, segment.initSegment.byteLength);
            callback(data.buffer)
          } else {
            callback(segment.data)
          }
        })
        transmuxer.push(new Uint8Array(data));
        transmuxer.flush();
      } else {
        callback(data)
      }
    },

    // 暂停与恢复
    togglePause() {
      this.isPause = !this.isPause
      !this.isPause && this.retryAll()
    },

    // 重新下载某个片段
    retry(index) {
      if (this.finishList[index].status === 'error') {
        this.finishList[index].status = ''
        this.ajax({
          url: this.tsUrlList[index],
          type: 'file',
          success: (file) => {
            this.errorNum--
            this.dealTS(file, index)
          },
          fail: () => {
            this.finishList[index].status = 'error'
          }
        })
      }
    },

    // 重新下载所有错误片段
    retryAll() {
      this.finishList.forEach((item) => { // 重置所有片段状态
        if (item.status === 'error') {
          item.status = ''
        }
      })
      this.errorNum = 0
      this.downloadIndex = this.rangeDownload.startSegment - 1
      this.downloadTS()
    },

    // 下载整合后的TS文件
    downloadFile(fileDataList, fileName) {
      this.tips = 'ts 碎片整合中，请留意浏览器下载'
      let fileBlob = null
      let a = document.createElement('a')
      if (this.isGetMP4) {
        fileBlob = new Blob(fileDataList, { type: 'video/mp4' }) // 创建一个Blob对象，并设置文件的 MIME 类型
        a.download = fileName + '.mp4'
      } else {
        fileBlob = new Blob(fileDataList, { type: 'video/MP2T' }) // 创建一个Blob对象，并设置文件的 MIME 类型
        a.download = fileName + '.ts'
      }
      a.href = URL.createObjectURL(fileBlob)
      a.style.display = 'none'
      document.body.appendChild(a)
      a.click()
      a.remove()
    },

    // 格式化时间
    formatTime(date, formatStr) {
      const formatType = {
        Y: date.getFullYear(),
        M: date.getMonth() + 1,
        D: date.getDate(),
        h: date.getHours(),
        m: date.getMinutes(),
        s: date.getSeconds(),
      }
      return formatStr.replace(
        /Y+|M+|D+|h+|m+|s+/g,
        target => (new Array(target.length).join('0') + formatType[target[0]]).substr(-target.length)
      )
    },

    // 强制下载现有片段
    forceDownload() {
      if (this.mediaFileList.length) {
        this.downloadFile(this.mediaFileList, this.formatTime(this.beginTime, 'YYYY_MM_DD hh_mm_ss'))
      } else {
        alert('当前无已下载片段')
      }
    },

    // 发生错误，进行提示
    alertError(tips) {
      alert(tips)
      this.downloading = false
      this.tips = 'm3u8 视频在线提取工具';
    },

    // 拷贝本页面本身，解决跨域问题
    copyCode() {
      if (this.tips !== '代码下载中，请稍后') {
        this.tips = '代码下载中，请稍后';
        this.ajax({
          url: './index.html',
          success: (fileStr) => {
            let fileList = fileStr.split(`
							


						

							
							
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