[原创] 用cefsharp响应拦截实现抖音快手视频下载 附教程和成品软件

用cefsharp响应拦截实现抖音快手视频下载 附教程和成品软件

这里用的语言是C#
使用的谷歌内核
直接在nuget

然后安装即可
创建一个winform项目，然后对cefsharp 进行配置

public partial class Form1 : Form {
        ChromiumWebBrowser browser;
        public void InitBrowser() {
            CefSettings settings = new CefSettings();
 
            // Note that if you get an error or a white screen, you may be doing something wrong !
            // Try to load a local file that you're sure that exists and give the complete path instead to test
            // for example, replace page with a direct path instead :
            // String page = @"C:\Users\SDkCarlos\Desktop\afolder\index.html";
 
            // String page = string.Format(@"{0}\html-resources\html\index.html", Application.StartupPath);
            String url = "http://www.html5test.com";
 
            // Initialize cef with the provided settings
            Cef.Initialize(settings);
            // Create a browser component
            browser = new ChromiumWebBrowser(url);
 
            // Add it to the form and fill it to the form window.
            this.Controls.Add(browser);
            browser.Dock = DockStyle.Fill;
 
            // Allow the use of local resources in the browser
            BrowserSettings browserSettings = new BrowserSettings();
            browserSettings.FileAccessFromFileUrls = CefState.Enabled;
            browserSettings.UniversalAccessFromFileUrls = CefState.Enabled;
            browser.BrowserSettings = browserSettings;
        }
 
        public Form1() {
            InitializeComponent();
            InitBrowser();
        }
}

然后要进行资源的拦截

创建文件ResourceRequestHandler对IResourceRequestHandler进行实现

修改GetResourceResponseFilter方法

public IResponseFilter GetResourceResponseFilter(IWebBrowser chromiumWebBrowser, IBrowser browser, IFrame frame, IRequest request, IResponse response) {
 
        var url = new Uri(request.Url);
        if (url.AbsoluteUri.Contains("douyin.com/aweme/v1/web/aweme/post"))
        {
        return DouYinResponseFilter.CreateFilter(request.Identifier.ToString());
    }
         
    return null;
}

修改OnResourceLoadComplete 方法

public void OnResourceLoadComplete(IWebBrowser chromiumWebBrowser, IBrowser browser, IFrame frame, IRequest request, IResponse response, UrlRequestStatus status, long receivedContentLength) {
 
    var url = new Uri(request.Url);
 
    if (url.AbsoluteUri.Contains("douyin.com/aweme/v1/web/aweme/post"))
    {
        var filter = DouYinResponseFilter.GetFileter(request.Identifier.ToString()) as DouYinResponseFilter;
        if (filter != null)
        {
            var encode = !string.IsNullOrEmpty(response.Charset)
                ? Encoding.GetEncoding(response.Charset)
                : Encoding.UTF8;
            using (var read = new StreamReader(filter.GetStream(), encode))
            {
                var text = read.ReadToEnd();
                Debug.WriteLine(text);//捕获的响应 
            }
        }
    }
 
 
    
 
}

DouYinResponseFilter 具体实现

internal class DouYinResponseFilter : IResponseFilter
{
    private MemoryStream Stream;
 
    public DouYinResponseFilter()
    {
        Stream = new MemoryStream();
    }
    public Stream GetStream()
    {
        Stream.Seek(0, SeekOrigin.Begin);
        return Stream;
    }
    private static Dictionary<string, IResponseFilter> _dictionary = new Dictionary<string, IResponseFilter>();
 
    public static IResponseFilter CreateFilter(string id)
    {
        var filter = new DouYinResponseFilter();
        _dictionary[id] = filter;
        return filter;
    }
 
    public static IResponseFilter GetFileter(string id)
    {
        if (_dictionary.ContainsKey(id))
        {
            var filter = _dictionary[id];
            _dictionary.Remove(id);
            return filter;
        }
        return null;
    }
    public void Dispose()
    {
         
    }
 
    public FilterStatus Filter(Stream dataIn, out long dataInRead, Stream dataOut, out long dataOutWritten)
    {
        try
        {
            if (dataIn == null || dataIn.Length == 0)
            {
                dataInRead = 0;
                dataOutWritten = 0;
 
                return FilterStatus.Done;
            }
 
            dataInRead = dataIn.Length;
            dataOutWritten = Math.Min(dataInRead, dataOut.Length);
 
            dataIn.CopyTo(dataOut);
            dataIn.Seek(0, SeekOrigin.Begin);
            byte[] bs = new byte[dataIn.Length];
            dataIn.Read(bs, 0, bs.Length);
 
 
            Stream.Write(bs, 0, bs.Length);
            dataInRead = dataIn.Length;
            dataOutWritten = dataIn.Length;
 
            return FilterStatus.NeedMoreData;
        }
        catch (Exception ex)
        {
            dataInRead = dataIn.Length;
            dataOutWritten = dataIn.Length;
 
            return FilterStatus.Done;
        }
    }
 
    public bool InitFilter()
    {
        return true;
    }
}

拿到我们在OnResourceLoadComplete  捕获的text(响应数据)
长这样

后边我们就可以拿着json数据进行处理
提取出来作品描述和作品链接

var item = JObject.Parse(data);
var aweme_list = item["aweme_list"];
foreach (var item1 in aweme_list)
{
    var desc = item1["desc"];//作品标题
    if (desc.ToString() == "")
    {
        desc= item1["aweme_id"];//没有作品标题使用作品的id 
    }
    var playaddr = item1["video"]["play_addr"]["url_list"][0];//作品链接
}

然后就可以拿到这样的数据

然后自己写一个下载器

进行下载即可

然后就能看到下载的作品啦

使用教程

默认的下载位置在D:\XDownload

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