CefSharp/CefSharp.Example/WebRequestResourceHandler.cs at master · SkyNetStudio/CefSharp · GitHub

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// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.

using System.Collections.Specialized;

using System.IO;

using System.Net;

using System.Net.Mime;

using System.Threading.Tasks;

namespace CefSharp.Example

{

/// <summary>

/// A simple <see cref="ResourceHandler"/> that uses <see cref="WebRequest.Create(string)"/> to fulfill requests.

/// </summary>

/// <remarks>

/// This example doesn't cover all cases, for example POST requests, if you'd like to see the example

/// expanded then please subit a Pull Request.

/// </remarks>

public class WebRequestResourceHandler : ResourceHandler

{

public override CefReturnValue ProcessRequestAsync(IRequest request, ICallback callback)

{

//Spawn a Task and immediately return CefReturnValue.ContinueAsync

Task.Run(async () =>

{

using (callback)

{

//Create a clone of the headers so we can modify it

var headers = new NameValueCollection(request.Headers);

var httpWebRequest = (HttpWebRequest)WebRequest.Create(request.Url);

httpWebRequest.UserAgent = headers["User-Agent"];

httpWebRequest.Accept = headers["Accept"];

httpWebRequest.Method = request.Method;

httpWebRequest.Referer = request.ReferrerUrl;

//These headers must be set via the appropriate properties.

headers.Remove("User-Agent");

headers.Remove("Accept");

httpWebRequest.Headers.Add(headers);

//TODO: Deal with post data

var postData = request.PostData;

var httpWebResponse = await httpWebRequest.GetResponseAsync() as HttpWebResponse;

// Get the stream associated with the response.

var receiveStream = httpWebResponse.GetResponseStream();

var contentType = new ContentType(httpWebResponse.ContentType);

var mimeType = contentType.MediaType;

var charSet = contentType.CharSet;

var statusCode = httpWebResponse.StatusCode;

var memoryStream = new MemoryStream();

receiveStream.CopyTo(memoryStream);

receiveStream.Dispose();

httpWebResponse.Dispose();

//Reset the stream position to 0 so the stream can be copied into the underlying unmanaged buffer

memoryStream.Position = 0;

ResponseLength = memoryStream.Length;

MimeType = mimeType;

Charset = charSet ?? "UTF-8";

StatusCode = (int)statusCode;

Stream = memoryStream;

AutoDisposeStream = true;

callback.Continue();

}

});

return CefReturnValue.ContinueAsync;

}

CefSharp/CefSharp.Example/WebRequestResourceHandler.cs at master · SkyNetStudio/CefSharp · GitHub

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