cef如何隐藏html,CefSharp访问加密的HTML/JS/CSS文件

经过长期斗争，我终于找到了工作液自己。基本的想法是编写我自己的资源处理程序以及资源处理程序工厂。

创建实现IResourceHandler的MyResourceHandler。

如果ResponseLength没有值且Stream为null(可选)，请在GetResponse函数中进行解密。

创建实现IResourceHandlerFactory的MyResourceHandlerFactory。

在GetResourceHandler函数中进行解密。

初始化ChromiumWebBrowser时使用MyResourceHandlerFactory。在MyResourceHandler

样品的GetResponse功能：

public virtual Stream GetResponse(IResponse response, out long responseLength, out string redirectUrl)

{

redirectUrl = null;

responseLength = -1;

response.MimeType = MimeType;

response.StatusCode = StatusCode;

response.StatusText = StatusText;

response.ResponseHeaders = Headers;

if (ResponseLength.HasValue)

{

responseLength = ResponseLength.Value;

}

else

{

//If no ResponseLength provided then attempt to infer the length

var memoryStream = Stream as MemoryStream;

if (memoryStream != null)

{

responseLength = memoryStream.Length;

}

else

{

var absoluteFilePath = new Uri(FilePath).AbsolutePath;

var fileBytes = File.ReadAllBytes(absoluteFilePath);

if (ShouldDecrypt)

{

memoryStream = Decrypt(fileBytes);

}

else

{

memoryStream = new MemoryStream(fileBytes);

}

responseLength = memoryStream.Length;

Stream = memoryStream as Stream;

}

}

return Stream;

}

样品GetResourceHandler功能MyResourceHandlerFactory：

public virtual IResourceHandler GetResourceHandler(IWebBrowser browserControl, IBrowser browser, IFrame frame, IRequest request)

{

try

{

var uri = new Uri(request.Url);

var filePath = uri.AbsolutePath;

if (!File.Exists(filePath)) return null;

var mime = GetMimeType(filePath);

var fileBytes = File.ReadAllBytes(filePath);

if (ShouldDecrypt)

{

Stream decryptedStream = Decrypt(fileBytes);

return MyResourceHandler.FromStream(decryptedStream, mime);

}

Stream fileStream = new MemoryStream(fileBytes);

return MyResourceHandler.FromStream(fileStream, mime);

}

finally

{

request.Dispose();

}

}

最后如果你想知道如何初始化ChromiumWebBrowser使用MyResourceHandlerFactory：

var browser = new ChromiumWebBrowser

{

ResourceHandlerFactory = new MyResourceHandlerFactory()

};