某网盘下载流程分析

目的

目的是获取直接下载链接

步骤

1. 首先向如下地址POST 当前文件组的信息
   http://smsrebuild1.mail.10086.cn/file/disk?func=file:downLoadInitNew&sid=&rnd=0.7186728973620204&randnum=0.7449432775101055
   Playload如下

<?xml version="1.0" encoding="utf-8" ?>
	<object>
		<string name="groupIds">61731315292000322680951652255297</string>
	</object>

Response为

{
   
  "code": "S_OK",
  "summary": "成功",
  "var": {
   
    "fileList": [
      {
   
        "groupId": "61731315292000322680951652255297",
        "sendId": "BBD96E74D13A1B37E05400237D3E1C7D",
        "remainTime": "2021-03-23 23:05:15",
        "remainDownloadTimes": 0,
        "fileSize": "5859.86M",
        "fileFid": "1311lDWnr5jf048202102212220101a4",
        "fileName": "Win10_20H2_v2_Chinese(Simplified)_x64.iso",
        "fileExt": "Win10_20H2_v2_Chinese(Simplified)_x64.iso",
        "imgTbnailUrl": "",
        "fileFrom": "2"
      }
    ]
  }
}

2. 向如下地址POST 要下载的文件信息
   http://smsrebuild1.mail.10086.cn/file/disk?func=file:fileBatDownload&sid=&rnd=0.32152442370766865&randnum=0.9709888074384974
   Playload为

<?xml version="1.0" encoding="utf-8" ?>
	<object>
		<string name="groupId">61731315292000322680951652255297</string>
		<string name="sendIds">BBD96E74D13A1B37E05400237D3E1C7D</string>
		<string name="fileFrom">2</string>
	</object>

Response为

{
   
  "code": "S_OK",
  "summary": "成功",
  "imageUrl": "http://download4.caiyun.feixin.10086.cn:80/storageWeb/servlet/pcDownloadFile?code=1311lDWnr5jf048202102212220101a410017pHRHMS78&contentID=1311lDWnr5jf048202102212220101a4&dom=D972&oprChannel=10201200&filename=V2luMTBfMjBIMl92Ml9DaGluZXNlKFNpbXBsaWZpZWQpX3g2NC5pc28="
}

3. 向如下地址发送GET请求 完成下载操作
   http://download4.caiyun.feixin.10086.cn/storageWeb/servlet/pcDownloadFile?code=1311lDWnr5jf048202102212220101a410017pHRHMS78&contentID=1311lDWnr5jf048202102212220101a4&dom=D972&oprChannel=10201200&filename=V2luMTBfMjBIMl92Ml9DaGluZXNlKFNpbXBsaWZpZWQpX3g2NC5pc28=