C#抖音地址解析获取水印地址
源码下载:DEMO下载
首先我们可以看到手机上的APP播放的视频是没有水印的,如下:
这样我们可以用Charles之类的工具抓取该地址,主要观看他的前缀地址部分(由于配置比较麻烦,大家可以自行配置,参看https://www.jianshu.com/p/c422344798c5,手机上的应用都可以抓取)
会发现播放地址是这样的:https://aweme.snssdk.com/aweme/v1/play/........
第二步:点击分享,复制地址,得到链接 https://v.douyin.com/7SUFkb/
第三步:我们使用谷歌浏览器访问(方便调试)
第四步:我们右键查看源码,会发现下图的地址
第五步:我们切换浏览器为手机模式,然后在看源码变化(我们会拿到第一步播放地址的关键部分参数),这一步只是为了验证PC浏览器模式和手机浏览模式的源码是不一样的。
第六步:在一次验证,我们访问第四步拿到地址(https://aweme.snssdk.com/aweme/v1/playwm/?s_vid=93f1b41336a8b7a442dbf1c29c6bbc562f1d6ac08e2f68576e6a34ac31a6790e5502ca4913dc07a83eabc3d41484e8ac7f43878815a424e99ceca999c77d5265&line=0),是可以得到视频源的,但是有水印,如下:
第七步:对比第一步(手机)和第四步(PC)拿到的地址,发现其地址playwm和play的变化,然后替换一下访问 https://aweme.snssdk.com/aweme/v1/play/?s_vid=93f1b41336a8b7a442dbf1c29c6bbc562f1d6ac08e2f68576e6a34ac31a6790e5502ca4913dc07a83eabc3d41484e8ac7f43878815a424e99ceca999c77d5265&line=0
得到无水印地址(提示:经验证这里得用浏览器的手机模式,pc模式无法访问)
经过上面几步,从第二步开始,抖音地址就经过了几次重定向才拿到真实的数据源地址
下面是C#实现的代码:
/// <summary> /// 抖音 /// </summary> /// <param name="url"></param> /// <returns></returns> public string DouYin(string url) { var webHtml = VideoHelper.GetWebContent(url, 0); var webArr1 = Regex.Split(webHtml, "playAddr: \"", RegexOptions.IgnoreCase); var webArr2 = Regex.Split(webArr1[1], "\",", RegexOptions.IgnoreCase); var playAddr = webArr2[0].Replace("playwm", "play"); var payUrl = VideoHelper.GetMapUrl(playAddr, 1); return payUrl; }
/// <summary> /// 获取页面html /// </summary> /// <param name="Url">页面路径</param> /// <param name="type">浏览器类型(0PC/1手机)</param> /// <returns></returns> public static string GetWebContent(string Url, int type = 0) { string strResult = ""; try { HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url); //声明一个HttpWebRequest请求 request.Method = "POST"; var UserAgent = "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/15.0.861.0 Safari/535.2"; if (type > 0) {//模拟手机浏览器 UserAgent = "Mozilla/5.0 (Linux; U; Android 2.2; en-us; Nexus One Build/FRF91) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1"; } request.UserAgent = UserAgent; request.ContentType = "application/x-www-form-urlencoded"; request.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"; HttpWebResponse response = (HttpWebResponse)request.GetResponse(); StreamReader sr = new StreamReader(response.GetResponseStream(), Encoding.GetEncoding("utf-8")); strResult = sr.ReadToEnd(); response.Close(); } catch { Console.WriteLine("出错"); } return strResult; } /// <summary> /// 获取重定向地址 /// </summary> /// <param name="Url">原地址</param> /// <param name="type">浏览器类型(0PC/1手机)</param> /// <returns></returns> public static string GetMapUrl(string Url, int type = 0) { string strResult = ""; try { HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url); request.Method = "POST"; var UserAgent = "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/15.0.861.0 Safari/535.2"; if (type > 0) {//模拟手机浏览器 UserAgent = "Mozilla/5.0 (Linux; U; Android 2.2; en-us; Nexus One Build/FRF91) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1"; } request.UserAgent = UserAgent; request.ContentType = "application/x-www-form-urlencoded"; request.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"; using (WebResponse response = request.GetResponse()) { strResult = response.Headers["Location"]; //重定向地址 } } catch { Console.WriteLine("出错"); } return strResult; }
源码下载:DEMO下载