How to pass the header from cefsharpwebbrowser .

Question

I m trying to pass the header value in the PHP files when the browser(cefSharpWebBrowser) request for the web page in WPF C#.

 

In my PHP code file, I write below logic.

 

able to view HTTP headers accessing https://www.****.com/temp_header_check.php, which can be accessed from this path:

 

this line means to display all the headers which we passed to this PHP files

 

What I have tried:

 

I was tried below code for the pass the header values to each requested PHP files at BeforeResourceLoad event of browser. On this code, I didn't get any error but I can't see the I passed headers values to the PHP files.

 

Try 1

public class CustomResourceRequestHandler : ResourceRequestHandler
{
private string _signature;
public CustomResourceRequestHandler(string signature)
{
_signature = GetSetComanDetails.Signature;
}

protected override CefReturnValue OnBeforeResourceLoad(IWebBrowser chromiumWebBrowser, IBrowser browser, IFrame frame, IRequest request, IRequestCallback callback)
{
if (request.Url.Contains("https://****.com"))
{
if (!string.IsNullOrEmpty(GetSetComanDetails.Signature))
{
var headers = request.Headers;
headers["s"] = GetSetComanDetails.Signature;
request.Headers = headers;
return CefReturnValue.Continue;
}
else return base.OnBeforeResourceLoad(chromiumWebBrowser, browser, frame, request, callback);
}
else return base.OnBeforeResourceLoad(chromiumWebBrowser, browser, frame, request, callback);
}

}
public class CustomRequestHandler : RequestHandler
{
private string _signature;
public CustomRequestHandler(string signature)
{
_signature = GetSetComanDetails.Signature;
}

protected override IResourceRequestHandler GetResourceRequestHandler(IWebBrowser chromiumWebBrowser, IBrowser browser, IFrame frame, IRequest request, bool isNavigation, bool isDownload, string requestInitiator, ref bool disableDefaultHandling)
{
if (request.Url.Contains("https://****.com") && request.Url.Contains(".php"))
{
if (!string.IsNullOrEmpty(GetSetComanDetails.Signature)) return new CustomResourceRequestHandler(GetSetComanDetails.Signature);
else return base.GetResourceRequestHandler(chromiumWebBrowser, browser, frame, request, isNavigation, isDownload, requestInitiator, ref disableDefaultHandling);
}
else return base.GetResourceRequestHandler(chromiumWebBrowser, browser, frame, request, isNavigation, isDownload, requestInitiator, ref disableDefaultHandling);
}
}

This event is called while we call the URL on the CefSharp browser in WPF..

chromium = (ChromiumWebBrowser)this.FindName("cefSharpWebBrowser");
cefSharpWebBrowser.Address = "https://****/access.php?type=desktop";
chromium.RequestHandler = new CustomRequestHandler("");

Try 2

 

Implement the below interface

 

CefSharp/IRequestHandler.cs at cefsharp/43 · cefsharp/CefSharp · GitHub[^]

 

Try 3

chromium.ResourceHandlerFactory = new MyResourceHandlerFactory();
...
class MyResourceHandlerFactory :IResourceHandlerFactory
{
public bool HasHandlers
{
get { return true; }
}
public IResourceHandler GetResourceHandler(IWebBrowser browserControl, IBrowser browser, IFrame frame, IRequest request)
{
if (request.Url.StartsWith("http"))
return new MyResourceHandler();
return null;
}
}

...

class MyResourceHandler : IResourceHandler
{
private HttpWebRequest webRequest;
private HttpWebResponse webResponse;
private Stream requestStream;
private byte[] requestBytes;
ICallback callback;

public Stream GetResponse(IResponse response, out long responseLength, out string redirectUrl)
{
responseLength = webResponse.ContentLength;
redirectUrl = null;
string type = webResponse.ContentType;
// strip off the encoding, if present
if (type.IndexOf("; ")>0)
type = type.Substring(0,type.IndexOf("; "));
response.MimeType = type;
// only a direct assignment works here, don't try to use other methods of the name/value collection;
response.ResponseHeaders = webResponse.Headers;
response.StatusCode = (int)webResponse.StatusCode;
response.StatusText = webResponse.StatusDescription;
// TODO return a wrapper around this stream to capture the response inline.
return webResponse.GetResponseStream();
}

private void SendRequestBody(IAsyncResult result)
{
requestStream = webRequest.EndGetRequestStream(result);
requestStream.BeginWrite(requestBytes, 0, requestBytes.Length, RequestSent, null);
}

private void RequestSent(IAsyncResult ar)
{
requestStream.EndWrite(ar);
requestStream.Close();
webRequest.BeginGetResponse(new AsyncCallback(Response), null);
}

private void Response(IAsyncResult ar)
{
webResponse = (HttpWebResponse)webRequest.EndGetResponse(ar);
callback.Continue();
}

public bool ProcessRequestAsync(IRequest request, ICallback callback)
{
this.callback = callback;
webRequest = (HttpWebRequest)WebRequest.Create(request.Url);
webRequest.Method = request.Method;
foreach (string key in request.Headers)
{
string value = request.Headers[key];
// HttpWebRequest doesn't like it if you try to set these values through the Headers collection
if ("Accept".Equals(key))
webRequest.Accept = value;
else if ("User-Agent".Equals(key))
webRequest.UserAgent = value;
else if ("Referer".Equals(key))
webRequest.Referer = value;
else if ("Content-Type".Equals(key))
webRequest.ContentType = value;
else if ("Content-Length".Equals(key))
webRequest.ContentLength=Convert.ToInt32(value);
else
webRequest.Headers.Add(key, value);
}
if (!String.IsNullOrWhiteSpace(request.Body))
{
this.requestBytes = Encoding.UTF8.GetBytes(request.Body);
webRequest.BeginGetRequestStream(new AsyncCallback(SendRequestBody), null);
}
else
{
webRequest.BeginGetResponse(new AsyncCallback(Response), null);
}
return true;
}